【机械类文献翻译】齿轮

外文原文：Application of virtual manufacturing in generation of gearsReceived: 29 November 2004 / Accepted: 5 May 2005 / Published online: 24 November 2005 Spfinger-Verlag.London Limited 2005Abstract The manufacturing process of gears is fairly complicated due to the presence of various simultaneous motions of the cutter and the job. In this paper, an attempt is made to generate meaningful design data for spur and helical gears and the corresponding rack form cutter necessary for the manufacturing. Using this information, solid models for the cutter and blank are developed and finally gear-manufacturing processes are simulated in a virtual manufacturing environment. The user has the option to choose between designs and manufacture mode at will. The integrated process may also help to develop an optimized product. For better understanding of the operational principle, an animation facility in the form of a movie is included in the package. Keywords Virtual manufacturing; Animation; Gear generation1 IntroductionA gear is a very common machine element in mechanical engineering applications. However, manufacturing of the gear seems to be fairly complicated even to the person having thorough technical knowledge in the related field. The conventional gear generation processes like forming, shaping, hobbing, etc. are usually represented in two-dimensional sketch. There may be some components that are not adequately described by the two-dimensional approach. In the case of gear generation, it may be difficult to understand the complex geometries and the manufacturing arrangement with the help of 2D models. These limitations can be partially overcome and understanding will be more meaningful if one uses 3D solid models instead. However, the development of the models using 3D solids may not always ensure the clarity of the complex gear generation process unless one uses animation to represent tile motion of the gear blank and the gear cutter. This can be achieved very efficiently with the help of the virtual manufacturing technique. It is a technology to create a virtual environment on the computer screen to simulate the physical world. The knowledge base and expertise gained from the work in the virtual environment enables the user to apply them more meaningfully in real life situations.A host of literature is available on virtual manufacturing in different areas among which some of the recent and important works are referred below. Tesic and Baneljee [1] have worked in the area of rapid prototyping, which is a new technology for design, visualization and verification. Graphical user interfaces, virtual reality technologies, distillation, segregation and auto interpretation are some of the important features of their work. Balyliss et al. [2] dealt with the development of models in a virtual environment using the virtual reality technologies providing an outstanding 3D visualization of the object. In 1994, G.M. Balyliss et al. [3] presented theoretic solid modeling techniques using the VM tools, like VP, MI, (virtual reality manufacturing language) and 3D Sludio Max. They have developed different parts of an automobile and through the special effect of animation imparted all possible motion to the model. The technology is further enhanced by Kiulera [4], who treated product and process modeling as a kernel for the virtual manufacturing environment. In his work, Kimura has incorporated significant modeling issues like representation, representation language, abstraction, standardization, configurationcontrol, etc. Arangarasau and Gadh [5] contributed towards the virtual prototyping that are constructed using simulation of the planned production process using virtual manufacturing on a platform of MAYA,3D Studio Max and VRML, etc. At .Jadavpur University, research work [6, 7] is being carried out to simulate the gear manufacturing processes using A I Ill)CAD and 31) Studio Max as platforms. Software has been developed that helps the design engineers to understand the problems related to spur gear operation and its manufacturing process.A study of the state of tile art and literature review reveal that the scope of virtual manufacturing is wide open for simulating spur gear generation processes. Computer simulation can be very effectively used for viewing along with aiding subsequent analysis of different complicated manufacturing processes using the concept of design centered virtual manufacturing. With this objective in mind, an attempt is made to virtually manufacture spur and helical gears from the blank using a rack cutter. The scope of the work includes the generation of design data for the spur and helical gears and the rack form cutter, the generation of solid models for the cutter and blank, and finally to simulate gear-manufacturing process through animation.The main motivation of the work is to simplify the task of designing, and to study the gear generation process that can be understood by a layman and to present a realistic view of it. All the processes are developed on the platform of the 3D Studio Max, which is one of the most important virtual tools. The software is developed using max-script, an object contained programming language that can be run in 3D Studio Max environment.2 Description of the softwareThe max-script language is basically an image processor that creates the visual effects in 3D Studio Max. In addition, it can be used for design calculation and subsequent checking. An attempt is made to develop the entire package in modular form so that any further improvement can be implemented easily without affecting the others. The entire work is carried out in a 3D environment. The modular structure of the entire package is presented in Fig. l. The major modules are: input module, gear design module, virtual manufacturing module and special module.A brief description of these modules is mentioned below.2.1 Input moduleThis module is developed to provide input parameters that are essential for (tie design and development of the spur and helical gears and the corresponding cutters. In order to make the software user friendly, the process of inputting the data is specifically done through an input dialogue-box created by the max-script-language. A sample dialogue box is shown in Fig.2. Some fields have some restrictions like predefined lower or upper limits or predefined steps for increment or decrement. This is done purposively to make the environment more user friendly and to restrict the user from entering invalid data, for example, a user cannot make the number of gear teeth less than 18.2.2 Gear-design moduleBefore going for the generation of the gears, one should evaluate the various designparameters of the gears to be manufactured based on the input parameters. In order to design a gear pair, the following data are essential.I Rpm at which the gear is running2. The power being transmitted3. The transmission ratio of the assemblyIn addition, users may specify the following operational conditions/parameters:1. Precision of the gear assembly2. Pressure angle of the gear3. Material of the pinion4. Type of shock load required for the pinion to take up5. Helix angle in case of helical gearIf the user is not satisfied with the output, he can modify the input to obtain desired output. In this module, the entire design procedure for the gears has been treated. The different aspects of design calculations, for example, dynamic load, static load (fatigue load) and the wear load have been calculated in separate programs, and are displayed through the output dialog box. While designing the gear, it has been kept in mind that the gear has to form mesh with that of the rack, so care has been taken to avoid the interference of the mating pair.2.2.1 MethodologyVarieties of gear cutting processes are available and are generally being followed in the industries during their manufacturing. In this paper, Focus is given on gear manufacturing through 'generation'.The underlying principle of gear design is based on the fact that the profiles of a pair of gear teeth bear a definite relationship to each other such that the pair of teeth have a predetermined relative motion and contact at every instant. Therefore, if the relative motion of the profiles and the form of one of them is known, the determination of the form of the other may be regarded as tile problem capable of solution by either graphical or analytical means. The actual production of gear tooth represents a solution to the above problem by mechanical means known as 'generation'. The generation is a method that follows the following principles.1. A cutting edge (basically a gear with cutting edges) is given a motion. As a result, it is caused to sweep out the surface corresponding to the actual teeth surfaces of the known member of a pair of conjugate gears.2. A 'blank' is mounted at an appropriate relationship to the cutter. It is given a motion that the finished gear must have relative to that of the cutter. As a result of the simultaneous movement and the cutting action of the cutter, teeth are formed on the blank conjugate to that represented by the cutter.In fact due to the addition of the relative motion, the profile given to the work piece is different from that of the cutter. This differentiates the 'generating' from the 'forming' operation.2.2.2 Spur gearGeneration of spur gear by means of cutter corresponding in form to the mating gear is well known. Cutter may be in the form of a rack. For an involute system of tooth profiles, the cutter corresponding to the rack will have straight sides.The arrangement of such a cutter relative to the blank is shown in Fig. 3. The cutter is adjusted radially with respect to the axis of the work. It is reciprocated so that its edges may sweep out the surface of the teeth of the imaginary rack forming the basis of the design of the tooth profile of the blank. In addition to this reciprocation, the cutter is advanced in the direction of the pitch line and at the same time the work is rotated about its axis at a speed such that it is pitch point has the same linear velocity as that of the rack. In other words, the pitch circle of the blank and the pitch line of the rack roll together. In consequence the straight cuttings edges generate the involute profile in the blank.For such a process to be continuous, The length of the cutter should be somewhat longer than the pitch circumference of the work；since this is usually impracticable．The cutter is withdrawn from the work after it has advanced a distance equal to all integral number of pitches and return to its starting point，the blank in the meantime remains stationary．This is repeated until all the teeth are cut．2.2.3 Helical gearIt is well known that a helical involute gear is conjugate to a straight rack having inclined teeth．Therefore，the same method described above can be employed to manufacture a helical gear．However, the direction of reciprocation of the rack cutter must be inclined to the axis of theblank at all angle equal to the helix angle of the gear．The cutter must roll over the blank in a direction similar to that described earlier．The simultaneous motion involved and the orientation of the cutter relative to the blank during the cutting operation is shown in Fig.4．2.3 Virtual manufacturing moduleThis module has been divided into two sub sections：(a) cutter generation，and (b) gear generation．2.3.1 Cutter generationIn this section of the virtual manufacturing，a solid model of the rack form cutter is developed. This cutter is used in the later stage to animate the gear generation process in the virtual environment The cutter with all its cutting geometry such as rack and clearance angles have been provided．Figure 5 exhibits a 3D solid model view of the cutter developed by the software．2.3.2 Gear generationThis module is further subdivided into two parts，namely, (i) spur gear generation module，and (ii) helical gear generation module.(i) Spur gear generation In this sub module, spur gear is generated. In order to simulate the actual machining operation, the blank, which is to be used for the generation of spur gear, is bolted on the movable tabletop. The required washer and back-plate are also tied with the same so that it will have a firm support and be ready for the machining purpose. The cutter is positioned at a desired location. Afterwards, the cutter is given requisite motion to generate involute profile tooth. Generation by means of such a tool is called copy-generation. The arrangement of such a cutter relative to the blank is illustrated in the Fig, 6.The kinematics of the gear shaping process involve the following motions.1. Reciprocation of the cutter2. Tangential feed of the cutter and rolling of the gear blank3. The advanced and reliving motion of the gear-blank4. Radial feed of the cutter5. Indexing of the gear-blankAll of the above input parameters can be entered through tile input dialog box. In the software, provision is made to display the following motions of the system in the animation mode so that the users have the feeling of a virtual environment created in 3D.(ii) Helical gear generation In the case of helical gears, as the cutter reciprocates up and down over the gear blank. It makes a definite angle with the vertical, equal to the helix angle of the cutter (Fig. 7). As a result, a few teeth that are inclined to the axis of the blank will be partially generated on the gear blank at one time. None of the teeth will be complete in first phase following the principle of gear generation.2.4 Special moduleOne of the major objectives of the software is to simulate the various simultaneous movements involved in a gear generation process. In the special module, additional features are provided for better understanding of the gear generation process. They are (a) camera views (snap shot), (b) camera views (animated), and (c) movie files.2.4.1 Camera views (snap shot)The software provides the facility to place the camera at different coordinate positions and thus display different camera views of the cutting process. These are the still pictures taken in render form at successive intervals of the machining process. Still pictures of the partially cut pinion along with that of the cutter at every step of cutting is recorded and enable the user to feel the reality in a virtual environment,2.4.2 Animation and movieAnimation is the backbone of virtual manufacturing as it gives life to already created stationary objects, in other words, it simulates the dynamic behavior of different components. In order to create the effect of animation, a series of still pictures are first generated with a little change of position of the objects from the previous one. When these pictures are displayed in proper sequence at successive interval, they create the impression of moving objects. Each of these pictures is known as flame. For the animation, time interval between successive frames is very important. Generally, the human eye can perceive a frame rate between 60 frames per sec (fps) and I0 fps. The illusion of continuous motion as opposed to a fast paced slide show starts to break down under 1 2 fps. So, frame rate is to be kept above this limit. Generally the frame rate for films becomes standardized at 24 fps. In addition, the animator has to decide whether a given motion has to be shot "on ones" or" on twos". For simple motion it is better to shoot ~' on twos" in which case each frames would be shot twice, making the effective playback rate 12 fps. For a very swift or intricate motion, the frames of shooting "on ones" are generally recommended to keep continuity. The cutter and the gear blank occupy different positions in each of the frames depending on the kinematics relationship of the cutting process. This is achieved through the max-script programming environment of 3D Studio Max. They are stored in the hard disk as rendered views of the objects so that whenever necessary they can be run efficiently with the help of Windows media player:2.4.3 Animated camera viewThe software has the additional facility to pan the camera as the gear generation process is in progress. The procedure is quite simple and is described below in brief.As mentioned in the earlier section, a first snap shot of the machining process is taken with the camera situated at a particular position. The next frame is taken with the camera position shifted a little bit from its original location. This process continues until the camera comes to the pre-determined end position. The number of frames to be created within the interval is decided as per the visual requirement. Each of the frames captures the progressive development of the cuttingprocess, while the camera moves along definite path. When these frames are projected on the screen successively, it creates the effect of panning the camera. This facility is very useful to understand the complex mechanism of the gear generation process. However, setting of camera locations requires a thorough understanding of 3D co-ordinate systems.3 Results and discussionsIt is not possible to present all the feature of the software. Some of the salient features are highlighted below.As the cutter reciprocates up and down over the gear blank, a few teeth will be partially generated on the gear blank at a time. None of the teeth will be in complete shape in the first cut following the principle of gear generation. It should be noted that the cutter teeth profile is straight edge whereas, in the case of gear, it has an involute profile.In order to create the impression of cutting, a large number of frames are generated, each one exhibiting a different amount of material removal from the gear blank. The downward motion of the cutter is assumed to be the cutting stroke. The requisite depth of cut is introduced by bringing the cutter to the predetermined position above the blank. The gear blank below the cutter is not yet cut. This is one frame and is shown to the viewer. The next frame shows the sequence when the cutter just finishes the cutting motion and a few partial teeth are developed on the blank. The successive frames illustrate the withdrawal of the cutter, its backward movement, indexing of the gear blank, and positioning of the cutter for the next cutting action. When all these frames are shown one after another, the observer will have the impression of virtual manufacturing of the gear. This process continues until all the teeth successively pass on the pitch circumference of the gear-blank. Figures 8, 9 show a few of the frames during the cutting process of spur and helical gears, respectively.The software has the facility of creating movie files in which a user can control projection of frame rates. Therefore, it is very useful for demonstration purpose as well. The user can change the camera view as per his requirement for better understanding of the operational principal.4 ConclusionA user-friendly software package has been developed that can tackle the problem of gear design and subsequent visualization of the gear generation process in a virtual environment. It also focuses the development of a rack form cutter, which in the later stage is used for the generation of the gear. All the models are developed in a 3D environment. Additional features like camera views, movie files, etc. are incorporated for better understanding of a fairly difficult subject.Provisions are made to enter the input data through dialog box. If there is incorrect data, a warning message is given by the software indicating what step to be followed next. The results of all the design calculation are indicated in the output dialog box. For a designer these values are very useful information. Using the above output, a designer may have an overall idea about the gear to be manufactured. Once the designer is sure about the output results of the design calculation, he can proceed forward for subsequent virtual manufacturing operations. He can also switch between design module and manufacture module at will, thus leading to an optimized product.References1. Tesic R, Banerjee P (1999) Design of virtual objects for exact collision detection in virtual reality modeling of manufacturing processes. Proceedings of international conference on robotics and automation, Detroit, USA2. Balyliss GM, Bowlyer A, Talyor Rl, Willis PG (1993) Virtual manufacturing. Proceedings of international workshop on graphics and robotics, Schloss Dagstuhl, Germany, 19 22 April3. Balyliss GM, Bowlyer A, Talyor R1, Willis PG (1975) Theoretic solid modeling techniques and application using the virtual manufacturing. Proceedings of CSG-94, 1994.4. Kimura F (1993) Product and process modeling as a kernel for virtual manufacturing environment. CIPP Ann 42:147 1505. Arangarasan R, Gadh R (2000) Geometric modeling and collaborative design in multimodel, virtual environment. Proceedings of ASME, IDETC/CIE Conference, Sept 10 136. Roy S, Pohit G, Saha KN (2003) Computer aided design of spur gear. Proceedings of 20th AIMTDR, conference, BIT Mesra, Ranchi, India, 13-15 Dec7. Pattanayak RK, Pohit G, Saha KN (2003) Application of solid modeling in virtual manufacturing of' spur gear. Proceedings of 11th national conference on machines and mechanism (Nacomm), I.I.T. Delhi, Delhi, 18 19 December, pp 683 688译文：虚拟制造在齿轮生产中的应用摘要齿轮的制造过程相当的复杂，这归结于各种各样的刀具和工件同时运动的出现。

毕业设计中英文翻译英文原文Hard gear processing[abstract ]uses in the power drive gear and the gear box, its size request smaller, the gear drive noise is lower, thus causes to the hard gear demand, also gave the gear manufacturer to propose explored the gear to process the new method the request OutlineUses in the power drive gear and the gear box, its size request smaller, the gear drive noise is lower, thus causes to the hard gear demand, also gave the gear manufacturer to propose explored the gear to process the new method the request. The gear in the hard heat treatment process, its material organization and the stress change, usually can cause the gear to have the distortion, namely tooth profile, tooth to and tooth pitch error. This this error will cause the tooth profile not correctly to mesh in the transmission time, thus has enlarged the load, will have the gear noise. Therefore, the hard gear after the heat treatment, should increase together the precision work working procedure generally.The hard gear precision work craft may divide into two kinds: A kind is uses non- formed the cutting edge, like the gear rubs truncates the processing; Another kind then is has formed the cutting edge like hard gear (HRC48 ~ 53) to roll truncates the processing.This article strongly will discuss will use in hardly rolling the hard alloy tools forming cutting edge precision work process which the tooth will process. The now hard alloy material, the cutting tool coating and the gear-hobbing machine technology development, has caused the hard gear to roll cuts the processing technology to have the remarkable enhancement, specially is smaller than in the processing or was equal to when 12DP center small modulus gear, may withstand the enormous cutting force which in the hard cutting process produces.Hard alloy hob selectionThe hard alloy hob has the very big progress in the material variety specification. Superfine, is thin, medium or the big pellet hard alloy now all has the product. In addition, the hard alloy hob semifinished materials formed craft technology also had the remarkable enhancement, like uses static pressure and so on heat (HIP) the craft, this craft under the high-pressured high temperature, increased the hard alloy semifinished materials intrinsic binding force, enhanced the hard alloy anti- curved intensity. According to the ISO stipulation, the entity hard alloy material may differently divide into certain kinds according to the application situation: The gear cutting tool divides into K kind and P kind, K kind of hard alloy has a higherresistance to wear, P kind then has the better high temperature red hardness. In the K trademark and in the P trademark hard alloy, each kind of trademark hard alloy granular structure is different, from medium pellet to superfine pellet. Each kind of trademark all has its application situation, this is and the granular structure is connected. Generally speaking, regarding softly rolls truncates, the K analogy P kind of performance is friends with, K kind of hard alloy can obtain a micron level the granular structure (granularity to be smaller than 0.5 mu m), but P kind then is not good. In abrasion aspect, K kind of toughness better, the life is longer.The hob resharpens and renovatesAfter the hob processing certain quantity work piece, its cutting edge failure, this time must resharpen. Sharpens the after hob to have to maintain the original geometry shape; The cutting edge must be sharp; The cutting tool golden phase structure cannot because rub truncates the heat but to destroy. Thus when sharpens the hard alloy hob should use one kind of oil base refrigerant, it does not get up to the chlorine and the sulfur the response. Regarding scrapes the hob, sharpens after the coating not likely to use in hob such which the entity semifinished materials hardly rolls being important again. After the hard alloy hob sharpens in front of the coating, suggested carries on the pretreatment to its cutting edge.The hob rewill sharpen can except the cutting surface original coating, this will be able to reduce the cutting tool life. The cutting tool is may again spread. Usually regarding the TiN coating, may spread 3 ~ 4; Says regarding TiCN and the TiALN coating, because coating itself has the very big internal stress, therefore on cutting edge with difficulty again again coating. After several spreading TiN coating, can have the height non-uniformity condition, and influentials the tendency which the level falls off, therefore the original coating must remove.At present has two methods to be possible to remove the cutting tool coating: Chemistry draws back spreads draws back with physics spreads. Draws back with chemistry spreads removes on the hard alloy tools the coating is one kind of fine craft, requests the operator to have the suitable level of expertise. The excessively chemistry draws back spreads not only removes the coating, moreover also will dissolve washes the cobalt cement, the damage hard alloy material microscopic structure. The cutting edge microscopic damage will produce the zigzag surface. In addition, when draws back spreads must to the hob pillow block, in the hole and the sign carries on the protection, in order to avoid damages. But physics spreads, then must carry on by the original cutting tool factory, it involves to puts in order rerubs the hob tooth profile truncates. Although draws back chemistry spreads must be much more expensive than, but obtains is a new hob, the quality and the life all can obtain the guarantee.To gear-hobbing machine requestIn order to fully displays the hard alloy and the coating craft merit, the gear-hobbing machine should do correspondingly improves. At present all advanced gear-hobbing machines all press high speed roll the tooth to carry on the design, its gear-hobbing machine hob rotational speed surpasses 3000r/Min, usually is5000r/Min, the work piece main axle rotational speed and the hob rotational speed match. In addition, the engine bed has very high moves the rigidity and the hot rigidity. The advanced gear-hobbing machine some main design characteristics are: Uses the compound epoxy resin lathe bed, by improves the engine bed the tendency and the static characteristic; Has the constant temperature installment the high speed hob headstock; High speed work piece main axle; May use does, the wet two kinds rolls truncates the craft; Belt electro-optical sensor digital actuation system; The straight line rolls the guide rail system; High speed automatic high-quality goods (2 ~ 3 seconds); The occupying a land area of is compact; According to man-machine engineering design; Services conveniently.Uses scrapes the craftRegardless of is the mechanical type the CNC gear-hobbing machine all can carry on scrapes, but the condition is the engine bed must equip has the work piece to the cutting tool selsyn train system. This may cause to scrape the craft economically, to has on the automatic yummy treats system the engine bed very to be also important. The electronic non- contact system depends on a simulation quantity sensor to send out the pulse to survey the cutting tool main axle, the work piece main axle and the gear position. The engine bed CNC controller carries on processing to these pulses, then is opposite to the work piece main axle in the cutting tool position carries on the adjustment, causes a work piece turn of tooth and the hob knife tooth relative position relations is correct.In scrapes in the craft to have very many merits with the refrigerant: In scrapes in the process, the refrigerant has provided the lubricating ability; Because scrapes produces is not the normal scrap, the temperature control is extremely important. Blows the scrap small is thin, does not look like normal knife filings such to be possible to carry off many quantity of heats, therefore scrapes time uses the refrigerant to be possible to control the cutting tool, the work piece and the engine bed system temperature; The refrigerant may washes away the scrap from the cutting tool and the work piece; Improved the work piece surface fine roughness; Enhanced the cutting tool life."Rolls in the green truncates" in the craft, correctly chooses the tooth thick remainder is very important. The recommendation choice down milling rolls the tooth, because it may obtain the thickest scrap, this is helpful to the control cutting process dynamic condition, enhances the cutting tool life. The experience proved that, the cutting speed may surpass 200m/Min, enters for the quantity choice is decided by the superficially attractive fineness which must achieve. The model enters for the scope is 0.5 ~ 1.25mm/R. The cutting tool shifts (flees knife) the method very to be also important, because scrapes time only then the rough machining section partial cutting edges only then undergo the attrition. On the contrary, in "the green cutting" in the process, the cutting tool precision work has partially undertaken the main process load. This meant when scraping flees the knife quantity to be supposed to be bigger, when like the gear is 12 ~ 48DP, each time flees the knife quantity is 0.3 ~ 0.4mm.Scrapes the hob the selectionScrapes the hard alloy hob to divide into two big kinds: Uses in 10DP or the bigger modulus hob, usually all designs has a negative rake front the cutting, when the cutting edge contacts to the hard tooth face, reduced to the hard alloy material impact; Regarding the small modulus gear, does not need to have the negative rake. The negative rake hob shortcoming is sharpens the difficulty. After the hob sharpens the outer diameter to reduce, in order to obtain the correct negative rake to be supposed to change the grinding wheel the bias quantity.When scrapes, the big modulus gear, its addendum, the outer annulus diameter and the tooth root spot all are usually not rolled truncates, and has a smooth transition a request turn of tooth to the tooth root. In order to obtain sinks cuts with the integrity transition circular arc radius, enhances the tooth root the anti- curved intensity, uses in the big modulus gear ideal scraping the hob to be supposed to have the flange. Regarding the small modulus gear processing, should use the standard hob. Uses the standard in front of the radial direction the angle hard alloy hob processing to be called "the hard alloy hob to roll again cuts", but is not "scrapes", latter referred has used a negative rake hob.Hardly rolls the specification which truncates and hardly scrapes the specification which, or the hard alloy hob rolls again truncates nearly same, similarity is uses the strategy which flees the knife to shift to be different. When hardly rolls, the scrap excision must spend the massive energies. This energy finally becomes the quantity of heat. Tries to carry off very important these thermal sending out. After the suggestion processes a work piece every time, the hob flees a position entire tooth pitch. When the hob will flee from beginning to end the position from now on, will be supposed to transfer to the hob to the initial position has a bias quantity the spot. This bias quantity is decided by the hob design and the application, its goal is for be helpful to the hob uniform wear. Another one similarity is the attire which uses clamps the system. As a result of the enormous cutting force, the jig must safely clamp the work piece. The processing result indicated that, the identical helical gear when hardly rolls again with the hard alloy hob, its gear quality is very high, the tooth profile approaches the AGMA10 level, the tooth to surpasses the AGMA12 level with the tooth pitch; The entire hard semifinished materials hardly roll cut the processing the helical gear, its gear precision extremely is also high, the tooth profile precision may reach the AGMA10 level, the tooth to may achieve the AGMA12 level with the tooth pitch. ConclusionAt present has explored many economies the method to process the hard gear, including the material choice, the soft processing method, the heat treatment craft and the hard precision work, enable the hard gear to obtain the popularization, has satisfied the high grade transmission device to the hard gear request.Carries on from entity entire hard work piece semifinished materials hardly rolls cuts the processing is one kind of new processing craft. Because has a rigid better engine bed and the high quality hard alloy tools material and performs coating processing, causes hardly to roll slivers is one effective processing method. Indicatedfrom the factory practical application result that, the hard gear rolls cuts (hardly rolls) the craft to have the broad application prospect.译文：淬硬齿轮的加工【摘要】用于动力传动的齿轮和齿轮箱，其尺寸要求更小，齿轮传动的噪音更低，从而导致对淬硬齿轮的需求，也给齿轮制造厂家提出了探索齿轮加工新方法的要求.概述用于动力传动的齿轮和齿轮箱，其尺寸要求更小，齿轮传动的噪音更低，从而导致对淬硬齿轮的需求，也给齿轮制造厂家提出了探索齿轮加工新方法的要求。

GEAR AND SHAFT INTRODUCTIONAbstract: The important position of the wheel gear and shaft can't falter in traditional machine and modern machines.The wheel gear and shafts mainly install the direction that delivers the dint at the principal axis box.The passing to process to make them can is divided into many model numbers, using for many situations respectively.So we must be they to the understanding of the wheel gear and shaft in many ways .Key words: Wheel gear;ShaftIn the force analysis of spur gears, the forces are assumed to act in a single plane. We shall study gears in which the forces have three dimensions. The reason for this, in the case of helical gears, is that the teeth are not parallel to the axis of rotation. And in the case of bevel gears, the rotational axes are not parallel to each other. There are also other reasons, as we shall learn.Helical gears are used to transmit motion between parallel shafts. The helix angle is the same on each gear, but one gear must have a right-hand helix and the other a left-hand helix. The shape of the tooth is an involute helicoid. If a piece of paper cut in the shape of a parallelogram is wrapped around a cylinder, the angular edge of the paper becomes a helix. If we unwind this paper, each point on the angular edge generates an involute curve. The surface obtained when every point on the edge generates an involute is called an involute helicoid.The initial contact of spur-gear teeth is a line extending all the way across the face of the tooth. The initial contact of helical gear teeth is a point, which changes into a line as the teeth come into more engagement. In spur gears the line of contact is parallel to the axis of the rotation; in helical gears, the line is diagonal across the face of the tooth. It is this gradual of the teeth and the smooth transfer of load from one tooth to another, which give helical gears the ability to transmit heavy loads at high speeds. Helical gears subject the shaft bearings to both radial and thrust loads. When the thrust loads become high or are objectionable for other reasons, it may be desirable to use double helical gears. A double helical gear (herringbone) is equivalent to two helical gears of opposite hand, mounted side by side on the same shaft. They develop opposite thrust reactions and thus cancel out the thrust load. When two or more single helical gears are mounted on the same shaft, the hand of the gears should be selected so as to produce the minimum thrust load.Crossed-helical, or spiral, gears are those in which the shaft centerlines are neither parallel nor intersecting. The teeth of crossed-helical fears have point contact with each other, which changes to line contact as the gears wear in. For this reason they will carry out very small loads and are mainly for instrumental applications, and are definitely not recommended for use in the transmission of power. There is on difference between a crossed helical gear and a helical gear until they are mounted in mesh with each other. They are manufactured in the same way. A pair of meshed crossed helical gears usually have the same hand; that is ,a right-hand driver goes with a right-hand driven. In the design of crossed-helical gears, the minimum sliding velocity is obtainedwhen the helix angle are equal. However, when the helix angle are not equal, the gear with the larger helix angle should be used as the driver if both gears have the same hand.Worm gears are similar to crossed helical gears. The pinion or worm has a small number of teeth, usually one to four, and since they completely wrap around the pitch cylinder they are called threads. Its mating gear is called a worm gear, which is not a true helical gear. A worm and worm gear are used to provide a high angular-velocity reduction between nonintersecting shafts which are usually at right angle. The worm gear is not a helical gear because its face is made concave to fit the curvature of the worm in order to provide line contact instead of point contact. However, a disadvantage of worm gearing is the high sliding velocities across the teeth, the same as with crossed helical gears.Worm gearing are either single or double enveloping. A single-enveloping gearing is one in which the gear wraps around or partially encloses the worm.. A gearing in which each element partially encloses the other is, of course, a double-enveloping worm gearing. The important difference between the two is that area contact exists between the teeth of double-enveloping gears while only line contact between those of single-enveloping gears. The worm and worm gear of a set have the same hand of helix as for crossed helical gears, but the helix angles are usually quite different. The helix angle on the worm is generally quite large, and that on the gear very small. Because of this, it is usual to specify the lead angle on the worm, which is the complement of the worm helix angle, and the helix angle on the gear; the two angles are equal for a 90-deg. Shaft angle.When gears are to be used to transmit motion between intersecting shaft, some of bevel gear is required. Although bevel gear are usually made for a shaft angle of 90 deg. They may be produced for almost any shaft angle. The teeth may be cast, milled, or generated. Only the generated teeth may be classed as accurate. In a typical bevel gear mounting, one of the gear is often mounted outboard of the bearing. This means that shaft deflection can be more pronounced and have a greater effect on the contact of teeth. Another difficulty, which occurs in predicting the stress in bevel-gear teeth, is the fact the teeth are tapered.Straight bevel gears are easy to design and simple to manufacture and give very good results in service if they are mounted accurately and positively. As in the case of squr gears, however, they become noisy at higher values of the pitch-line velocity. In these cases it is often good design practice to go to the spiral bevel gear, which is the bevel counterpart of the helical gear. As in the case of helical gears, spiral bevel gears give a much smoother tooth action than straight bevel gears, and hence are useful where high speed are encountered.It is frequently desirable, as in the case of automotive differential applications, to have gearing similar to bevel gears but with the shaft offset. Such gears are called hypoid gears because their pitch surfaces are hyperboloids of revolution. The tooth action between such gears is a combination of rolling and sliding along a straight line and has much in common with that ofworm gears.A shaft is a rotating or stationary member, usually of circular cross section, having mounted upon it such elements pulleys, flywheels, cranks, sprockets, and other power-transmission elements. Shaft may be subjected to bending, tension, compression, or torsional loads, acting singly or in combination with one another. When they are combined, one may expect to find both static and fatigue strength to be important design considerations, since a single shaft may be subjected to static stresses, completely reversed, and repeated stresses, all acting at the same time.The word “shaft” covers numerous variations, such as axles and spindles.：a shaft, wither stationary or rotating, nor subjected to torsion load. A shirt rotating shaft is often called a spindle.When either the lateral or the torsional deflection of a shaft must be held to close limits, the shaft must be sized on the basis of deflection before analyzing the stresses. The reason for this is that, if the shaft is made stiff enough so that the deflection is not too large, it is probable that the resulting stresses will be safe. But by no means should the designer assume that they are safe; it is almost always necessary to calculate them so that he knows they are within acceptable limits. Whenever possible, the power-transmission elements, such as gears or pullets, should be located close to the supporting bearings, This reduces the bending moment, and hence the deflection and bending stress.Although the von method is difficult to use in design of shaft, it probably comes closest to predicting actual failure. Thus it is a good way of checking a shaft that has already been designed or of discovering why a particular shaft has failed in service. Furthermore, there are a considerable number of shaft-design problems in which the dimension are pretty well limited by other considerations, such as rigidity, and it is only necessary for the designer to discover something about the fillet sizes, heat-treatment, and surface finish and whether or not shot peening is necessary in order to achieve the required life and reliability.Because of the similarity of their functions, clutches and brakes are treated together. In a simplified dynamic representation of a friction clutch, or brake, two inertias I1 and I2 traveling at the respective angular velocities W1 and W2, one of which may be zero in the case of brake, are to be brought to the same speed by engaging the clutch or brake. Slippage occurs because the two elements are running at different speeds and energy is dissipated during actuation, resulting in a temperature rise. In analyzing the performance of these devices we shall be interested in the actuating force, the torque transmitted, the energy loss and the temperature rise. The torque transmitted is related to the actuating force, the coefficient of friction, and the geometry of the clutch or brake. This is problem in static, which will have to be studied separately for eath geometric configuration. However, temperature rise is related to energy loss and can be studied without regard to the type of brake or clutch because the geometry of interest is the heat-dissipating surfaces. The various types of clutches and brakes may be classified as flows1.Rim type with internally expanding shoes2.Rim type with externally contracting shoes3.Band type4.Disk or axial type5.Cone type6.Miscellaneous typeThe analysis of all type of friction clutches and brakes use the same general procedure. The following step are necessary:1.Assume or determine the distribution of pressure on the frictional surfaces.2.Find a relation between the maximum pressure and the pressure at any point3.Apply the condition of statical equilibrium to find (a) the actuating force, (b) thetorque, and (c) the support reactions.Miscellaneous clutches include several types, such as the positive-contact clutches, overload-release clutches, overrunning clutches, magnetic fluid clutches, and others.A positive-contact clutch consists of a shift lever and two jaws. The greatest differences between the various types of positive clutches are concerned with the design of the jaws. To provide a longer period of time for shift action during engagement, the jaws may be ratchet-shaped, or gear-tooth-shaped. Sometimes a great many teeth or jaws are used, and they may be cut either circumferentially, so that they engage by cylindrical mating, or on the faces of the mating elements.Although positive clutches are not used to the extent of the frictional-contact type, they do have important applications where synchronous operation is required.Devices such as linear drives or motor-operated screw drivers must run to definite limit and then come to a stop. An overload-release type of clutch is required for these applications. These clutches are usually spring-loaded so as to release at a predetermined toque. The clicking sound which is heard when the overload point is reached is considered to be a desirable signal.An overrunning clutch or coupling permits the driven member of a machine to “freewheel” or “overrun” because the driver is stopped or because anot her source of power increase the speed of the driven. This type of clutch usually uses rollers or balls mounted between an outer sleeve and an inner member having flats machined around the periphery. Driving action is obtained by wedging the rollers between the sleeve and the flats. The clutch is therefore equivalent to a pawl and ratchet with an infinite number of teeth.Magnetic fluid clutch or brake is a relatively new development which has two parallel magnetic plates. Between these plates is a lubricated magnetic powder mixture. An electromagnetic coil is inserted somewhere in the magnetic circuit. By varying the excitation to this coil, the shearing strength of the magnetic fluid mixture may be accurately controlled. Thus any condition from a full slip to a frozen lockup may be obtained.齿轮和轴的介绍摘要:在传统机械和现代机械中齿轮和轴的重要地位是不可动摇的。

机械专业英语词汇中英文对照翻译一览表陶瓷ceramics合成纤维synthetic fibre电化学腐蚀electrochemical corrosion车架automotive chassis悬架suspension转向器redirector变速器speed changer板料冲压sheet metal parts孔加工spot facing machining车间workshop工程技术人员engineer气动夹紧pneuma lock数学模型mathematical model画法几何descriptive geometry机械制图Mechanical drawing投影projection视图view剖视图profile chart标准件standard component零件图part drawing装配图assembly drawing尺寸标注size marking技术要求technical requirements刚度rigidity内力internal force位移displacement截面section疲劳极限fatigue limit断裂fracture塑性变形plastic distortion脆性材料brittleness material刚度准则rigidity criterion垫圈washer垫片spacer直齿圆柱齿轮straight toothed spur gear 斜齿圆柱齿轮helical-spur gear直齿锥齿轮straight bevel gear运动简图kinematic sketch齿轮齿条pinion and rack蜗杆蜗轮worm and worm gear虚约束passive constraint曲柄crank摇杆racker凸轮cams共轭曲线conjugate curve范成法generation method定义域definitional domain值域range导数\\微分differential coefficient求导derivation定积分definite integral不定积分indefinite integral曲率curvature偏微分partial differential毛坯rough游标卡尺slide caliper千分尺micrometer calipers攻丝tap二阶行列式second order determinant 逆矩阵inverse matrix线性方程组linear equations概率probability随机变量random variable排列组合permutation and combination 气体状态方程equation of state of gas动能kinetic energy势能potential energy机械能守恒conservation of mechanical energy动量momentum桁架truss轴线axes余子式cofactor逻辑电路logic circuit触发器flip-flop脉冲波形pulse shape数模digital analogy液压传动机构fluid drive mechanism机械零件mechanical parts淬火冷却quench淬火hardening回火tempering调质hardening and tempering磨粒abrasive grain结合剂bonding agent砂轮grinding wheel后角clearance angle龙门刨削planing主轴spindle主轴箱headstock卡盘chuck加工中心machining center 车刀lathe tool车床lathe钻削镗削bore车削turning磨床grinder基准benchmark钳工locksmith锻forge压模stamping焊weld拉床broaching machine拉孔broaching装配assembling铸造found流体动力学fluid dynamics流体力学fluid mechanics加工machining液压hydraulic pressure切线tangent机电一体化mechanotronics mechanical-electrical integration气压air pressure pneumatic pressure稳定性stability介质medium液压驱动泵fluid clutch液压泵hydraulic pump阀门valve失效invalidation强度intensity载荷load应力stress安全系数safty factor可靠性reliability螺纹thread螺旋helix键spline销pin滚动轴承rolling bearing滑动轴承sliding bearing弹簧spring制动器arrester brake十字结联轴节crosshead联轴器coupling链chain皮带strap精加工finish machining粗加工rough machining变速箱体gearbox casing腐蚀rust氧化oxidation磨损wear耐用度durability随机信号random signal离散信号discrete signal超声传感器ultrasonic sensor 集成电路integrate circuit挡板orifice plate残余应力residual stress套筒sleeve扭力torsion冷加工cold machining电动机electromotor汽缸cylinder过盈配合interference fit热加工hotwork摄像头CCD camera倒角rounding chamfer优化设计optimal design工业造型设计industrial moulding design有限元finite element滚齿hobbing插齿gear shaping伺服电机actuating motor铣床milling machine钻床drill machine镗床boring machine步进电机stepper motor丝杠screw rod导轨lead rail组件subassembly可编程序逻辑控制器Programmable Logic Controller PLC 电火花加工electric spark machining电火花线切割加工electrical discharge wire - cutting 相图phase diagram热处理heat treatment固态相变solid state phase changes有色金属nonferrous metal陶瓷ceramics合成纤维synthetic fibre电化学腐蚀electrochemical corrosion车架automotive chassis悬架suspension转向器redirector变速器speed changer板料冲压sheet metal parts孔加工spot facing machining车间workshop工程技术人员engineer气动夹紧pneuma lock数学模型mathematical model画法几何descriptive geometry机械制图Mechanical drawing投影projection视图view剖视图profile chart标准件standard component零件图part drawing装配图assembly drawing尺寸标注size marking技术要求technical requirements刚度rigidity内力internal force位移displacement截面section疲劳极限fatigue limit断裂fracture塑性变形plastic distortion脆性材料brittleness material刚度准则rigidity criterion垫圈washer垫片spacer直齿圆柱齿轮straight toothed spur gear 斜齿圆柱齿轮helical-spur gear直齿锥齿轮straight bevel gear运动简图kinematic sketch齿轮齿条pinion and rack蜗杆蜗轮worm and worm gear虚约束passive constraint曲柄crank摇杆racker凸轮cams共轭曲线conjugate curve范成法generation method定义域definitional domain值域range导数\\微分differential coefficient求导derivation定积分definite integral不定积分indefinite integral曲率curvature偏微分partial differential毛坯rough游标卡尺slide caliper千分尺micrometer calipers攻丝tap二阶行列式second order determinant 逆矩阵inverse matrix线性方程组linear equations概率probability随机变量random variable排列组合permutation and combination气体状态方程equation of state of gas动能kinetic energy势能potential energy机械能守恒conservation of mechanical energy 动量momentum桁架truss轴线axes余子式cofactor逻辑电路logic circuit触发器flip-flop脉冲波形pulse shape数模digital analogy液压传动机构fluid drive mechanism机械零件mechanical parts淬火冷却quench淬火hardening回火tempering调质hardening and tempering磨粒abrasive grain结合剂bonding agent砂轮grinding wheel Assembly line 组装线Layout 布置图Conveyer 流水线物料板Rivet table 拉钉机Rivet gun 拉钉枪Screw driver 起子Pneumatic screw driver 气动起子worktable 工作桌OOBA 开箱检查fit together 组装在一起fasten 锁紧(螺丝)fixture 夹具(治具)pallet 栈板barcode 条码barcode scanner 条码扫描器fuse together 熔合fuse machine热熔机repair修理operator作业员QC品管supervisor 课长ME 制造工程师MT 制造生技cosmetic inspect 外观检查inner parts inspect 内部检查thumb screw 大头螺丝lbs. inch 镑、英寸EMI gasket 导电条front plate 前板rear plate 后板chassis 基座bezel panel 面板power button 电源按键reset button 重置键Hi-pot test of SPS 高源高压测试Voltage switch of SPS 电源电压接拉键sheet metal parts 冲件plastic parts 塑胶件SOP 制造作业程序material check list 物料检查表work cell 工作间trolley 台车carton 纸箱sub-line 支线left fork 叉车personnel resource department 人力资源部production department生产部门planning department企划部QC Section品管科stamping factory冲压厂painting factory烤漆厂molding factory成型厂common equipment常用设备uncoiler and straightener整平机punching machine 冲床robot机械手hydraulic machine油压机lathe车床planer |plein|刨床miller铣床grinder磨床linear cutting线切割electrical sparkle电火花welder电焊机staker=reviting machine铆合机position职务president董事长general manager总经理special assistant manager特助factory director厂长department director部长deputy manager | =vice manager副理section supervisor课长deputy section supervisor =vice section superisor副课长group leader/supervisor组长line supervisor线长assistant manager助理to move, to carry, to handle搬运be put in storage入库pack packing包装to apply oil擦油to file burr 锉毛刺final inspection终检to connect material接料to reverse material 翻料wet station沾湿台Tiana天那水cleaning cloth抹布to load material上料to unload material卸料to return material/stock to退料scraped |\\'skr?pid|报废scrape ..v.刮;削deficient purchase来料不良manufacture procedure制程deficient manufacturing procedure制程不良oxidation |\\' ksi\\'dei?n|氧化scratch刮伤dents压痕defective upsiding down抽芽不良defective to staking铆合不良embedded lump镶块feeding is not in place送料不到位stamping-missing漏冲production capacity生产力education and training教育与训练proposal improvement提案改善spare parts=buffer备件forklift叉车trailer=long vehicle拖板车compound die合模die locker锁模器pressure plate=plate pinch压板bolt螺栓administration/general affairs dept总务部automatic screwdriver电动启子thickness gauge厚薄规gauge(or jig)治具power wire电源线buzzle蜂鸣器defective product label不良标签identifying sheet list标示单location地点present members出席人员subject主题conclusion结论decision items决议事项responsible department负责单位pre-fixed finishing date预定完成日approved by / checked by / prepared by核准/审核/承办PCE assembly production schedule sheet PCE组装厂生产排配表model机锺work order工令revision版次remark备注production control confirmation生产确认checked by初审approved by核准department部门stock age analysis sheet 库存货龄分析表on-hand inventory现有库存available material良品可使用obsolete material良品已呆滞to be inspected or reworked 待验或重工total合计cause description原因说明part number/ P/N 料号type形态item/group/class类别quality品质prepared by制表notes说明year-end physical inventory difference analysis sheet 年终盘点差异分析表physical inventory盘点数量physical count quantity帐面数量difference quantity差异量cause analysis原因分析raw materials原料materials物料finished product成品semi-finished product半成品packing materials包材good product/accepted goods/ accepted parts/good parts 良品defective product/non-good parts不良品disposed goods处理品warehouse/hub仓库on way location在途仓oversea location海外仓spare parts physical inventory list备品盘点清单spare molds location模具备品仓skid/pallet栈板tox machine自铆机wire EDM线割EDM放电机coil stock卷料sheet stock片料tolerance工差score=groove压线cam block滑块pilot导正筒trim剪外边pierce剪内边drag form压锻差pocket for the punch head挂钩槽slug hole废料孔feature die公母模expansion dwg展开图radius半径shim(wedge)楔子torch-flame cut火焰切割set screw止付螺丝form block折刀stop pin定位销round pierce punch=die button圆冲子shape punch=die insert异形子stock locater block定位块under cut=scrap chopper清角active plate活动板baffle plate挡块cover plate盖板male die公模female die母模groove punch压线冲子air-cushion eject-rod气垫顶杆spring-box eject-plate弹簧箱顶板bushing block衬套insert 入块club car高尔夫球车capability能力parameter参数factor系数phosphate皮膜化成viscosity涂料粘度alkalidipping脱脂main manifold主集流脉bezel斜视规blanking穿落模dejecting顶固模demagnetization去磁;消磁high-speed transmission高速传递heat dissipation热传rack上料degrease脱脂rinse水洗alkaline etch龄咬desmut剥黑膜D.I. rinse纯水次Chromate铬酸处理Anodize阳性处理seal封孔revision版次part number/P/N料号good products良品scraped products报放心品defective products不良品finished products成品disposed products处理品barcode条码flow chart流程表单assembly组装stamping冲压molding成型spare parts=buffer备品coordinate座标dismantle the die折模auxiliary fuction辅助功能poly-line多义线heater band 加热片thermocouple热电偶sand blasting喷沙grit 砂砾derusting machine除锈机degate打浇口dryer烘干机induction感应induction light感应光response=reaction=interaction感应ram连杆edge finder巡边器concave凸convex凹short射料不足nick缺口speck瑕??shine亮班splay 银纹gas mark焦痕delamination起鳞cold slug冷块blush 导色gouge沟槽;凿槽satin texture段面咬花witness line证示线patent专利grit沙砾granule=peuet=grain细粒grit maker抽粒机cushion缓冲magnalium镁铝合金magnesium镁金metal plate钣金lathe车mill锉plane刨grind磨drill铝boring镗blinster气泡fillet镶;嵌边through-hole form通孔形式voller pin formality滚针形式cam driver铡楔shank摸柄crank shaft曲柄轴augular offset角度偏差velocity速度production tempo生产进度现状torque扭矩spline=the multiple keys花键quenching淬火tempering回火annealing退火carbonization碳化tungsten high speed steel钨高速的moly high speed steel钼高速的organic solvent有机溶剂bracket小磁导liaison联络单volatile挥发性resistance电阻ion离子titrator滴定仪beacon警示灯coolant冷却液crusher破碎机阿基米德蜗杆Archimedes worm安全系数safety factor; factor of safety安全载荷safe load凹面、凹度concavity扳手wrench板簧flat leaf spring半圆键woodruff key变形deformation摆杆oscillating bar摆动从动件oscillating follower摆动从动件凸轮机构cam with oscillating follower 摆动导杆机构oscillating guide-bar mechanism 摆线齿轮cycloidal gear摆线齿形cycloidal tooth profile摆线运动规律cycloidal motion摆线针轮cycloidal-pin wheel包角angle of contact保持架cage背对背安装back-to-back arrangement背锥back cone ；normal cone背锥角back angle背锥距back cone distance比例尺scale比热容specific heat capacity闭式链closed kinematic chain闭链机构closed chain mechanism臂部arm变频器frequency converters变频调速frequency control of motor speed 变速speed change变速齿轮change gear change wheel变位齿轮modified gear变位系数modification coefficient标准齿轮standard gear标准直齿轮standard spur gear表面质量系数superficial mass factor表面传热系数surface coefficient of heat transfer 表面粗糙度surface roughness并联式组合combination in parallel并联机构parallel mechanism并联组合机构parallel combined mechanism并行工程concurrent engineering并行设计concurred design, CD不平衡相位phase angle of unbalance不平衡imbalance (or unbalance)不平衡量amount of unbalance不完全齿轮机构intermittent gearing波发生器wave generator波数number of waves补偿compensation参数化设计parameterization design, PD残余应力residual stress操纵及控制装置operation control device槽轮Geneva wheel槽轮机构Geneva mechanism ；Maltese cross 槽数Geneva numerate槽凸轮groove cam侧隙backlash差动轮系differential gear train差动螺旋机构differential screw mechanism差速器differential常用机构conventional mechanism; mechanism in common use车床lathe承载量系数bearing capacity factor承载能力bearing capacity成对安装paired mounting尺寸系列dimension series齿槽tooth space齿槽宽spacewidth齿侧间隙backlash齿顶高addendum齿顶圆addendum circle齿根高dedendum齿根圆dedendum circle齿厚tooth thickness齿距circular pitch齿宽face width齿廓tooth profile齿廓曲线tooth curve齿轮gear齿轮变速箱speed-changing gear boxes齿轮齿条机构pinion and rack齿轮插刀pinion cutter; pinion-shaped shaper cutter 齿轮滚刀hob ,hobbing cutter齿轮机构gear齿轮轮坯blank齿轮传动系pinion unit齿轮联轴器gear coupling齿条传动rack gear齿数tooth number齿数比gear ratio齿条rack齿条插刀rack cutter; rack-shaped shaper cutter齿形链、无声链silent chain齿形系数form factor齿式棘轮机构tooth ratchet mechanism插齿机gear shaper重合点coincident points重合度contact ratio冲床punch传动比transmission ratio, speed ratio传动装置gearing; transmission gear传动系统driven system传动角transmission angle传动轴transmission shaft串联式组合combination in series串联式组合机构series combined mechanism 串级调速cascade speed control创新innovation creation创新设计creation design垂直载荷、法向载荷normal load唇形橡胶密封lip rubber seal磁流体轴承magnetic fluid bearing从动带轮driven pulley从动件driven link, follower从动件平底宽度width of flat-face从动件停歇follower dwell从动件运动规律follower motion从动轮driven gear粗线bold line粗牙螺纹coarse thread大齿轮gear wheel打包机packer打滑slipping带传动belt driving带轮belt pulley带式制动器band brake单列轴承single row bearing单向推力轴承single-direction thrust bearing单万向联轴节single universal joint单位矢量unit vector当量齿轮equivalent spur gear; virtual gear当量齿数equivalent teeth number; virtual number of teeth 当量摩擦系数equivalent coefficient of friction当量载荷equivalent load刀具cutter导数derivative倒角chamfer导热性conduction of heat导程lead导程角lead angle等加等减速运动规律parabolic motion; constant acceleration and deceleration motion等速运动规律uniform motion; constant velocity motion等径凸轮conjugate yoke radial cam等宽凸轮constant-breadth cam等效构件equivalent link等效力equivalent force等效力矩equivalent moment of force等效量equivalent等效质量equivalent mass等效转动惯量equivalent moment of inertia等效动力学模型dynamically equivalent model底座chassis低副lower pair点划线chain dotted line（疲劳）点蚀pitting垫圈gasket垫片密封gasket seal碟形弹簧belleville spring顶隙bottom clearance定轴轮系ordinary gear train; gear train with fixed axes 动力学dynamics动密封kinematical seal动能dynamic energy动力粘度dynamic viscosity动力润滑dynamic lubrication动平衡dynamic balance动平衡机dynamic balancing machine动态特性dynamic characteristics动态分析设计dynamic analysis design动压力dynamic reaction动载荷dynamic load端面transverse plane端面参数transverse parameters端面齿距transverse circular pitch端面齿廓transverse tooth profile端面重合度transverse contact ratio端面模数transverse module端面压力角transverse pressure angle锻造forge对称循环应力symmetry circulating stress对心滚子从动件radial (or in-line ) roller follower对心直动从动件radial (or in-line ) translating follower对心移动从动件radial reciprocating follower对心曲柄滑块机构in-line slider-crank (or crank-slider) mechanism多列轴承multi-row bearing多楔带poly V-belt多项式运动规律polynomial motion多质量转子rotor with several masses惰轮idle gear额定寿命rating life额定载荷load ratingII 级杆组dyad发生线generating line发生面generating plane法面normal plane法面参数normal parameters法面齿距normal circular pitch法面模数normal module法面压力角normal pressure angle法向齿距normal pitch法向齿廓normal tooth profile法向直廓蜗杆straight sided normal worm法向力normal force反馈式组合feedback combining反向运动学inverse ( or backward) kinematics 反转法kinematic inversion反正切Arctan范成法generating cutting仿形法form cutting方案设计、概念设计concept design, CD防振装置shockproof device飞轮flywheel飞轮矩moment of flywheel非标准齿轮nonstandard gear非接触式密封non-contact seal非周期性速度波动aperiodic speed fluctuation非圆齿轮non-circular gear粉末合金powder metallurgy分度线reference line; standard pitch line分度圆reference circle; standard (cutting) pitch circle 分度圆柱导程角lead angle at reference cylinder分度圆柱螺旋角helix angle at reference cylinder分母denominator分子numerator分度圆锥reference cone; standard pitch cone分析法analytical method封闭差动轮系planetary differential复合铰链compound hinge复合式组合compound combining复合轮系compound (or combined) gear train 复合平带compound flat belt复合应力combined stress复式螺旋机构Compound screw mechanism复杂机构 complex mechanism杆组Assur group干涉interference刚度系数stiffness coefficient刚轮rigid circular spline钢丝软轴wire soft shaft刚体导引机构body guidance mechanism刚性冲击rigid impulse (shock)刚性转子rigid rotor刚性轴承rigid bearing刚性联轴器rigid coupling高度系列height series高速带high speed belt高副higher pair格拉晓夫定理Grashoff`s law根切undercutting公称直径nominal diameter高度系列height series功work工况系数application factor工艺设计technological design工作循环图working cycle diagram工作机构operation mechanism工作载荷external loads工作空间working space工作应力working stress工作阻力effective resistance工作阻力矩effective resistance moment 公法线common normal line公共约束general constraint公制齿轮metric gears功率power功能分析设计function analyses design 共轭齿廓conjugate profiles共轭凸轮conjugate cam构件link鼓风机blower固定构件fixed link; frame固体润滑剂solid lubricant关节型操作器jointed manipulator惯性力inertia force惯性力矩moment of inertia ,shaking moment 惯性力平衡balance of shaking force惯性力完全平衡full balance of shaking force惯性力部分平衡partial balance of shaking force 惯性主矩resultant moment of inertia惯性主失resultant vector of inertia冠轮crown gear广义机构generation mechanism广义坐标generalized coordinate轨迹生成path generation轨迹发生器path generator滚刀hob滚道raceway滚动体rolling element滚动轴承rolling bearing滚动轴承代号rolling bearing identification code 滚针needle roller滚针轴承needle roller bearing滚子roller滚子轴承roller bearing滚子半径radius of roller滚子从动件roller follower滚子链roller chain滚子链联轴器double roller chain coupling 滚珠丝杆ball screw滚柱式单向超越离合器roller clutch过度切割undercutting函数发生器function generator函数生成function generation含油轴承oil bearing耗油量oil consumption耗油量系数oil consumption factor赫兹公式H. Hertz equation合成弯矩resultant bending moment合力resultant force合力矩resultant moment of force黑箱black box横坐标abscissa互换性齿轮interchangeable gears花键spline滑键、导键feather key滑动轴承sliding bearing滑动率sliding ratio滑块slider环面蜗杆toroid helicoids worm环形弹簧annular spring缓冲装置shocks; shock-absorber灰铸铁grey cast iron回程return回转体平衡balance of rotors混合轮系 compound gear train积分integrate机电一体化系统设计mechanical-electrical integration system design机构mechanism机构分析analysis of mechanism机构平衡balance of mechanism机构学mechanism机构运动设计kinematic design of mechanism机构运动简图kinematic sketch of mechanism机构综合synthesis of mechanism机构组成constitution of mechanism机架frame, fixed link机架变换kinematic inversion机器machine机器人robot机器人操作器manipulator机器人学robotics技术过程technique process技术经济评价technical and economic evaluation 技术系统technique system机械machinery机械创新设计mechanical creation design, MCD 机械系统设计mechanical system design, MSD 机械动力分析dynamic analysis of machinery机械动力设计dynamic design of machinery机械动力学dynamics of machinery机械的现代设计modern machine design机械系统mechanical system机械利益mechanical advantage机械平衡balance of machinery机械手manipulator机械设计machine design; mechanical design机械特性mechanical behavior机械调速mechanical speed governors机械效率mechanical efficiency机械原理theory of machines and mechanisms机械运转不均匀系数coefficient of speed fluctuation机械无级变速mechanical stepless speed changes基础机构fundamental mechanism基本额定寿命basic rating life基于实例设计case-based design,CBD基圆base circle基圆半径radius of base circle基圆齿距base pitch基圆压力角pressure angle of base circle基圆柱base cylinder基圆锥base cone急回机构quick-return mechanism急回特性quick-return characteristics急回系数advance-to return-time ratio急回运动quick-return motion棘轮ratchet棘轮机构ratchet mechanism棘爪pawl极限位置extreme (or limiting) position极位夹角crank angle between extreme (or limiting) positions计算机辅助设计computer aided design, CAD计算机辅助制造computer aided manufacturing, CAM计算机集成制造系统computer integrated manufacturing system, CIMS计算力矩factored moment; calculation moment计算弯矩calculated bending moment加权系数weighting efficient加速度acceleration加速度分析acceleration analysis加速度曲线acceleration diagram尖点pointing; cusp尖底从动件knife-edge follower间隙backlash间歇运动机构intermittent motion mechanism减速比reduction ratio减速齿轮、减速装置reduction gear减速器speed reducer减摩性anti-friction quality渐开螺旋面involute helicoid渐开线involute渐开线齿廓involute profile渐开线齿轮involute gear渐开线发生线generating line of involute渐开线方程involute equation渐开线函数involute function渐开线蜗杆involute worm渐开线压力角pressure angle of involute渐开线花键involute spline简谐运动simple harmonic motion键key键槽keyway交变应力repeated stress交变载荷repeated fluctuating load交叉带传动cross-belt drive交错轴斜齿轮crossed helical gears胶合scoring角加速度angular acceleration角速度angular velocity角速比angular velocity ratio角接触球轴承angular contact ball bearing角接触推力轴承angular contact thrust bearing 角接触向心轴承angular contact radial bearing 角接触轴承angular contact bearing铰链、枢纽hinge校正平面correcting plane接触应力contact stress接触式密封contact seal阶梯轴multi-diameter shaft结构structure结构设计structural design截面section节点pitch point节距circular pitch; pitch of teeth节线pitch line节圆pitch circle节圆齿厚thickness on pitch circle节圆直径pitch diameter节圆锥pitch cone节圆锥角pitch cone angle解析设计analytical design紧边tight-side紧固件fastener径节diametral pitch径向radial direction径向当量动载荷dynamic equivalent radial load径向当量静载荷static equivalent radial load径向基本额定动载荷basic dynamic radial load rating径向基本额定静载荷basic static radial load tating径向接触轴承radial contact bearing径向平面radial plane径向游隙radial internal clearance径向载荷radial load径向载荷系数radial load factor径向间隙clearance静力static force静平衡static balance静载荷static load静密封static seal局部自由度passive degree of freedom矩阵matrix矩形螺纹square threaded form锯齿形螺纹buttress thread form矩形牙嵌式离合器square-jaw positive-contact clutch 绝对尺寸系数absolute dimensional factor绝对运动absolute motion绝对速度absolute velocity均衡装置load balancing mechanism抗压强度compression strength开口传动open-belt drive开式链open kinematic chain开链机构open chain mechanism可靠度degree of reliability可靠性reliability可靠性设计reliability design, RD空气弹簧air spring空间机构spatial mechanism空间连杆机构spatial linkage空间凸轮机构spatial cam空间运动副spatial kinematic pair空间运动链spatial kinematic chain 空转idle宽度系列width series框图block diagram雷诺方程Reynolds‘s equation离心力centrifugal force离心应力centrifugal stress离合器clutch离心密封centrifugal seal理论廓线pitch curve理论啮合线theoretical line of action 隶属度membership力force力多边形force polygon力封闭型凸轮机构force-drive (or force-closed) cam mechanism力矩moment力平衡equilibrium力偶couple力偶矩moment of couple连杆connecting rod, coupler连杆机构linkage连杆曲线coupler-curve连心线line of centers链chain链传动装置chain gearing链轮sprocket sprocket-wheel sprocket gear chain wheel联组V 带tight-up V belt联轴器coupling shaft coupling两维凸轮two-dimensional cam临界转速critical speed六杆机构six-bar linkage龙门刨床double Haas planer轮坯blank。

外文原文：Kinematic Synthesis ，Cams and Gears Mechanisms form the basic geometrical elements of many mechanical devices including automatic packaging machinery, typewriters, mechanical toys, textile machinery, and others. A mechanism typically is designed to create a desired motion of a rigid body relative to a reference member. Kinematic design, or kinematic syntheses, of mechanisms often is the first step in the design of a complete machine. When forces are considered, the additional problems of dynamics, bearing loads, stresses, lubrication, and the like are introduced, and the larger problem becomes one of machine design.A kinematician defined kinematics as “the study of the motion of mechanisms and methods of creating them.” The first part of this definition deals with kinematic analysis. Given a certain mechanism, the motion characteristics of its components will be determined by kinematic analysis. The statement of the tasks of analysis contains all principal dimensions of the mechanism, the interconnections of its links, and the specification of the input motion or method of actuation. The objective is to find the displacements, velocities, accelerations, shock or jerk (second acceleration) , and perhaps higher accelerations of the various members, as well as the paths described and motions performed by certain elements. In short, in kinematic analysis we determine the performance of a given mechanism. The second part of definition may be paraphrased in two ways:1. The study of methods of creating a given motion by means of mechanisms.2. The study of methods of creating mechanisms having a given motion.In either version, the motion is given and the mechanism is to be found. This is the essence of kinematic synthesis. Thus kinematic synthesis deals with the systematic design of mechanisms for a given performance. The area of synthesis may be grouped into two categories.1. Type synthesis. Given the required performance, what type of mechanism will be suitable? (Gear trains? Linkages? Cam mechanisms? ) Also, how many links should the mechanism have? How many degrees of freedom are required? What configuration id desirable? And so on. Deliberations involving the number of links and degrees of freedom are often referred to as the province of a subcategory of type synthesis called number synthesis.2. Dimensional synthesis. The second major category of kinematic synthesis is best defined by way of its objective: Dimensional synthesis seeks to determine the significant dimensions and the starting position of a mechanism of preconceived type for a specified task and prescribed performance.Significant dimensions mean link lengths or distances on binary, ternary, and so on, links, angles between axis, cam-contour dimensions and cam-follower diameters, eccentricities, gear rations, and so forth. A mechanism of preconceived type may be a slider-crank linkage, a four-bar linkage, a cam with flat follower, or a more complex linkage of a certain configuration defined topologically but not dimensionally. Thereare three customary tasks for kinematic synthesis: function generation, path generation and motion generation.In function generation mechanisms rotation or sliding motions of input and output links must be correlated. For an arbitrary function )(x f y =, a kinematic synthesis task may be to design a linkage to correlate input and output such that the input moves by x , the output moves by )(x f y = for the range 10+<<n x x x . In the case of rotary input and output, the angles of rotation ϕ and ψ are the linear analogs of x and y respectively. When the input link is rotated to a value of the independent x , the mechanism in a “black box” causes the output link to turn to the corresponding value of the dependent variable )(x f y =. This may be regarded as a simple case of a mechanical analog computer. A variety of different mechanisms cou ld be contained within the “black box”. However, the four -bar linkage is not capable of error-free generation of an arbitrary function and can match the function at only a limited number of precision points. It is widely used in industry because the four-bar linkage id simple to construct and maintain.In path generation mechanism a point on a “floating link” is to trace a path defined with respect to a fixed frame of reference. If the path points are to be correlated with either time or input-link positions, the task is called path generation with prescribed timing. An example of path generation mechanisms id a four-bar linkage designed to pitch a baseball or tennis ball. In this case the trajectory of point p would be such as to pick up a ball at a prescribed location and to deliver the ball along a prescribed path with prescribed timing for reaching a suitable throw-velocity and direction.There are many situations in the design of mechanical devises in which it is necessary either to guide a rigid body through a series of specified, finitely separated positions or to impose constraints on the velocity and/or acceleration of the moving body at a reduced number of finitely separated positions. Motion-generation or rigid-body guidance mechanism requires that an entire body be guided through a prescribed motion sequence. The body to be guided usually is a part of a floating link, of which not only is the path of a point p prescribed, but also the rotation of a line passing through the point and embedded in the body,. For instance, the line might represent a carrier link in a automatic machinery where a point located on the carrier link has a prescribed path while the carrier has a prescribed angular orientation. Prescribing the movement of the bucket for a bucket loader id another example of motion generation mechanisms, the path of tip of the bucket is critical since the tip must perform a scooping trajectory followed by a lifting and a dumping trajectory. The angular orientation of the bucket are equally important to ensure that load is dumped from the correct position.A cam is a convenient device for transforming one motion into another. Thismachine element has a curved or grooved surface which mates with a follower and imparts motion to it. The motion of the cam (usually rotation) is transformed into follower oscillation, translation, or both. Because of the various cam geometries and the large number of cam and follower combinations, the cam is an extremely versatile mechanical element. Although a cam and follower may be designed for motion, path, or function generation, the majority of applications utilize the cam and follower for function generation.The most common cam types according to cam shapes are: disk or plate translating (two-dimensional or planar), and cylindrical (three-dimensional or spatial) cams. Followers can be classified in several ways: according to follower motion, such as translation or oscillation; according to whether the translational (straight-line) follower motion is radial of offset from the center of the cam shaft; and according to the shape of the follower contact surface (e. g. , flat-face, roller, point (knife-edge), spherical, planar curved, or spatial-curved surface).In the case of a disk cam with a radial (in-line) translating roller follower the smallest circle that can be drawn tangent to the cam surface and concentric with the camshaft is the base circle. The tracer point is a point at the center of the roller center and the normal to the pitch curve. The pressure angle is the angle between the direction of the path of the roller center and the normal to the pitch curve through the center of the roller and is the complement of the transmission angle. Neglecting friction, this normal is collinear with the contact force between the cam and follower. As in a linkage, the pressure angle varies during the cycle and is a measure of the ability of the cam to transfer motive effort to the follower. A large pressure angle will produce an appreciable lateral force exerted on the stem of the follower, which, in the presence of friction, would tend to bind the follower in the guide.Numerous applications in automatic machinery require intermittent motion. A typical example will call for a rise-dwell-return and perhaps another dwell period of a specified number of degrees each, together with a required follower displacement measured in centimeters or degrees. The designer’s job is to lay out the cam accordingly. The first decision to be made is to choose the cam follower type. The specified application may dictate the combination of the cam and follower. Some factors that should enter into the decision are: geometric considerations, dynamic considerations, environmental considerations and economic matters. Once a type of cam and follower pair has been selected, the follower motion must be chosen. Therefore, the velocity, acceleration, and in some cases further derivatives of the displacement of the follower are of great importance.Gears are machine elements that transmit motion by means of successively engaging teeth. Gears transmit motion from one rotating shaft to another, or to a rack that translates. Numerous applications exist in which a constant angular velocity ratio (or constant torque ratio) must be transmitted between shafts. Based on the variety of gear types available, there is no restriction that the input and the output shafts need be either in-line or parallel. Nonlinear angular velocity ratios are also available by using noncircular gears. In order to maintain a constant angular velocity, the individual tooth profile must obey the fundamental law of gearing: for a pair of gears to transmita constant angular velocity ratio, the shape of their contacting profiles must be such that the common normal passes through a fixed point on the line of the centers.Any two mating tooth profiles that satisfy the fundamental law of gearing are called conjugate profiles. Although there are many tooth shapes possible in which a mating tooth could be designed to satisfy the fundamental law, only two are in general use: the cycloidal and involute profiles. The involute has important advantages: it is easy to manufacture and the center distance between a pair of involute gears can be varied without changing the velocity ratio. Thus chose tolerances between shafts are not required when utilizing the involute profile.There are several standard gear types. For applications with parallel shafts, straight spur gear, parallel helical, or herringbone gears are usually used. In the case of intersecting shafts, straight bevel of spiral bevel gears are employed. For nonintersecting and nonparallel shafts, crossed helical, worm, face, skew bevel or hypoid gears would be acceptable choices. For spur gears, the pitch circles of mating gears are tangent to each other. They roll on one another without sliding. The addendum is the height by which a tooth projects beyond the pitch circle (also the radial distance between the pitch circle and the addendum circle). The clearance is the amount by which the addendum (tooth height below the pitch circle) in a given gears exceeds the addendum of its mating gear. The tooth thickness is the distance across the tooth along the arc of the pitch circle while the tooth space is the distance between adjacent teeth along the arc of the pitch circle. The backlash is the amount by which the width of the tooth space exceeds the thickness of the engaging tooth at the pitch circle.中文译文：运动的综合，凸轮和齿轮机构是形成许多机械装置的基本几何结构单元，这些机械装置包括自动包装机、打印机、机械玩具、纺织机械和其他机械等。

毕业设计(论文)外文资料翻译学院：专业：机械设计制造及其自动化姓名：学号：外文出处： Mechanism and Machine Theory34 (1999) 857-876(用外文写)附件： 1.外文资料翻译译文；2.外文原文。

附件1：外文资料翻译译文动力传动圆锥渐开线齿轮的设计、制造和应用Dr. J. Börner,K. Humm,Dr. F. Joachim,Dr. H. akaria,ZF Friedrichshafen AG , 88038Friedrichshafen, Germany；[摘要]圆锥渐开线齿轮(斜面体齿轮)被用于交叉或倾斜轴变速器和平行轴自由侧隙变速器中。

圆锥齿轮是在齿宽横断面上具有不同齿顶高修正(齿厚)的直齿或斜齿圆柱齿轮。

这类齿轮的几何形状是已知的，但应用在动力传动上则多少是个例外。

ZF公司已将该斜面体齿轮装置应用于各种场合:4W D轿车传动装置、船用变速器(主要用于快艇)机器人齿轮箱和工业传动等领域。

斜面体齿轮的模数在0. 7 mm-8 mm之间，交叉传动角在0°- 25°。

之间。

这些边界条件需要对斜面体齿轮的设计、制造和质量有一个深入的理解。

在锥齿轮传动中为获得高承载能力和低噪声所必须进行的齿侧修形可采用范成法磨削工艺制造。

为降低制造成本，机床设定和由于磨削加工造成的齿侧偏差可在设计阶段利用仿真制造进行计算。

本文从总体上介绍了动力传动变速器斜面体齿轮的研发，包括:基本几何形状、宏观及微观几何形状的设计、仿真、制造、齿轮测量和试验。

1前言在变速器中如果各轴轴线不平行的话，转矩传递可采用多种设计，例如:伞齿轮或冠齿轮、万向节轴或圆锥渐开线齿轮(斜面体齿轮)。

圆锥渐开线齿轮特别适用于小轴线角度(小于15°)，该齿轮的优点是在制造、结构特点和输入多样性等方而的简易。

圆锥渐开线齿轮被用于直角或交叉轴传动的变速器或被用于平行轴自由侧隙工况的变速器。

英文原文Hard gear processingAbstractuses in the power drive gear and the gear box, its size request smaller, the gear drive noise is lower, thus causes to the hard gear demand, also gave the gear manufacturer to propose explored the gear to process the new method the request OutlineUses in the power drive gear and the gear box, its size request smaller, the gear drive noise is lower, thus causes to the hard gear demand, also gave the gear manufacturer to propose explored the gear to process the new method the request. The gear in the hard heat treatment process, its material organization and the stress change, usually can cause the gear to have the distortion, namely tooth profile, tooth to and tooth pitch error. This this error will cause the tooth profile not correctly to mesh in the transmission time, thus has enlarged the load, will have the gear noise. Therefore, the hard gear after the heat treatment, should increase together the precision work working procedure generally.The hard gear precision work craft may divide into two kinds: A kind is uses non- formed the cutting edge, like the gear rubs truncates the processing; Another kind then is has formed the cutting edge like hard gear (HRC48 ~ 53) to roll truncates the processing.This article strongly will discuss will use in hardly rolling the hard alloy tools forming cutting edge precision work process which the tooth will process. The now hard alloy material, the cutting tool coating and the gear-hobbing machine technology development, has caused the hard gear to roll cuts the processing technology to have the remarkable enhancement, specially is smaller than in the processing or was equal to when 12DP center small modulus gear, may withstand the enormous cutting force which in the hard cutting process produces.Hard alloy hob selectionThe hard alloy hob has the very big progress in the material variety specification. Superfine, is thin, medium or the big pellet hard alloy now all has the product. In addition, the hard alloy hob semifinished materials formed craft technology also had the remarkable enhancement, like uses static pressure and so on heat (HIP) the craft, this craft under the high-pressured high temperature, increased the hard alloy semifinished materials intrinsic binding force, enhanced the hard alloy anti- curved intensity. According to the ISO stipulation, the entity hard alloy material may differently divide into certain kinds according to the application situation: The gear cutting tool divides into K kind and P kind, K kind of hard alloy has a higher resistance to wear, P kind then has the better high temperature red hardness. In the K trademark and in the P trademark hard alloy, each kind of trademark hard alloygranular structure is different, from medium pellet to superfine pellet. Each kind of trademark all has its application situation, this is and the granular structure is connected. Generally speaking, regarding softly rolls truncates, the K analogy P kind of performance is friends with, K kind of hard alloy can obtain a micron level the granular structure (granularity to be smaller than 0.5 mu m), but P kind then is not good. In abrasion aspect, K kind of toughness better, the life is longer.The hob resharpens and renovatesAfter the hob processing certain quantity work piece, its cutting edge failure, this time must resharpen. Sharpens the after hob to have to maintain the original geometry shape; The cutting edge must be sharp; The cutting tool golden phase structure cannot because rub truncates the heat but to destroy. Thus when sharpens the hard alloy hob should use one kind of oil base refrigerant, it does not get up to the chlorine and the sulfur the response. Regarding scrapes the hob, sharpens after the coating not likely to use in hob such which the entity semifinished materials hardly rolls being important again. After the hard alloy hob sharpens in front of the coating, suggested carries on the pretreatment to its cutting edge.The hob rewill sharpen can except the cutting surface original coating, this will be able to reduce the cutting tool life. The cutting tool is may again spread. Usually regarding the TiN coating, may spread 3 ~ 4; Says regarding TiCN and the TiALN coating, because coating itself has the very big internal stress, therefore on cutting edge with difficulty again again coating. After several spreading TiN coating, can have the height non-uniformity condition, and influentials the tendency which the level falls off, therefore the original coating must remove.At present has two methods to be possible to remove the cutting tool coating: Chemistry draws back spreads draws back with physics spreads. Draws back with chemistry spreads removes on the hard alloy tools the coating is one kind of fine craft, requests the operator to have the suitable level of expertise. The excessively chemistry draws back spreads not only removes the coating, moreover also will dissolve washes the cobalt cement, the damage hard alloy material microscopic structure. The cutting edge microscopic damage will produce the zigzag surface. In addition, when draws back spreads must to the hob pillow block, in the hole and the sign carries on the protection, in order to avoid damages. But physics spreads, then must carry on by the original cutting tool factory, it involves to puts in order rerubs the hob tooth profile truncates. Although draws back chemistry spreads must be much more expensive than, but obtains is a new hob, the quality and the life all can obtain the guarantee.To gear-hobbing machine requestIn order to fully displays the hard alloy and the coating craft merit, the gear-hobbing machine should do correspondingly improves. At present all advanced gear-hobbing machines all press high speed roll the tooth to carry on the design, its gear-hobbing machine hob rotational speed surpasses 3000r/Min, usually is 5000r/Min, the work piece main axle rotational speed and the hob rotational speed match. In addition, the engine bed has very high moves the rigidity and the hot rigidity. The advanced gear-hobbing machine some main design characteristics are: Uses the compound epoxy resin lathe bed, by improves the engine bed the tendency and the static characteristic; Has the constant temperature installment the high speed hobheadstock; High speed work piece main axle; May use does, the wet two kinds rolls truncates the craft; Belt electro-optical sensor digital actuation system; The straight line rolls the guide rail system; High speed automatic high-quality goods (2 ~ 3 seconds); The occupying a land area of is compact; According to man-machine engineering design; Services conveniently.Uses scrapes the craftRegardless of is the mechanical type the CNC gear-hobbing machine all can carry on scrapes, but the condition is the engine bed must equip has the work piece to the cutting tool selsyn train system. This may cause to scrape the craft economically, to has on the automatic yummy treats system the engine bed very to be also important. The electronic non- contact system depends on a simulation quantity sensor to send out the pulse to survey the cutting tool main axle, the work piece main axle and the gear position. The engine bed CNC controller carries on processing to these pulses, then is opposite to the work piece main axle in the cutting tool position carries on the adjustment, causes a work piece turn of tooth and the hob knife tooth relative position relations is correct.In scrapes in the craft to have very many merits with the refrigerant: In scrapes in the process, the refrigerant has provided the lubricating ability; Because scrapes produces is not the normal scrap, the temperature control is extremely important. Blows the scrap small is thin, does not look like normal knife filings such to be possible to carry off many quantity of heats, therefore scrapes time uses the refrigerant to be possible to control the cutting tool, the work piece and the engine bed system temperature; The refrigerant may washes away the scrap from the cutting tool and the work piece; Improved the work piece surface fine roughness; Enhanced the cutting tool life."Rolls in the green truncates" in the craft, correctly chooses the tooth thick remainder is very important. The recommendation choice down milling rolls the tooth, because it may obtain the thickest scrap, this is helpful to the control cutting process dynamic condition, enhances the cutting tool life. The experience proved that, the cutting speed may surpass 200m/Min, enters for the quantity choice is decided by the superficially attractive fineness which must achieve. The model enters for the scope is 0.5 ~ 1.25mm/R. The cutting tool shifts (flees knife) the method very to be also important, because scrapes time only then the rough machining section partial cutting edges only then undergo the attrition. On the contrary, in "the green cutting" in the process, the cutting tool precision work has partially undertaken the main process load. This meant when scraping flees the knife quantity to be supposed to be bigger, when like the gear is 12 ~ 48DP, each time flees the knife quantity is 0.3 ~ 0.4mm. Scrapes the hob the selectionScrapes the hard alloy hob to divide into two big kinds: Uses in 10DP or the bigger modulus hob, usually all designs has a negative rake front the cutting, when the cutting edge contacts to the hard tooth face, reduced to the hard alloy material impact; Regarding the small modulus gear, does not need to have the negative rake. The negative rake hob shortcoming is sharpens the difficulty. After the hob sharpens the outer diameter to reduce, in order to obtain the correct negative rake to be supposed to change the grinding wheel the bias quantity.When scrapes, the big modulus gear, its addendum, the outer annulus diameter and the tooth root spot all are usually not rolled truncates, and has a smooth transition a request turn of tooth to the tooth root. In order to obtain sinks cuts with the integrity transition circular arc radius, enhances the tooth root the anti- curved intensity, uses in the big modulus gear ideal scraping the hob to be supposed to have the flange. Regarding the small modulus gear processing, should use the standard hob. Uses the standard in front of the radial direction the angle hard alloy hob processing to be called "the hard alloy hob to roll again cuts", but is not "scrapes", latter referred has used a negative rake hob.Hardly rolls the specification which truncates and hardly scrapes the specification which, or the hard alloy hob rolls again truncates nearly same, similarity is uses the strategy which flees the knife to shift to be different. When hardly rolls, the scrap excision must spend the massive energies. This energy finally becomes the quantity of heat. Tries to carry off very important these thermal sending out. After the suggestion processes a work piece every time, the hob flees a position entire tooth pitch. When the hob will flee from beginning to end the position from now on, will be supposed to transfer to the hob to the initial position has a bias quantity the spot. This bias quantity is decided by the hob design and the application, its goal is for be helpful to the hob uniform wear. Another one similarity is the attire which uses clamps the system. As a result of the enormous cutting force, the jig must safely clamp the work piece. The processing result indicated that, the identical helical gear when hardly rolls again with the hard alloy hob, its gear quality is very high, the tooth profile approaches the AGMA10 level, the tooth to surpasses the AGMA12 level with the tooth pitch; The entire hard semifinished materials hardly roll cut the processing the helical gear, its gear precision extremely is also high, the tooth profile precision may reach the AGMA10 level, the tooth to may achieve the AGMA12 level with the tooth pitch. ConclusionAt present has explored many economies the method to process the hard gear, including the material choice, the soft processing method, the heat treatment craft and the hard precision work, enable the hard gear to obtain the popularization, has satisfied the high grade transmission device to the hard gear request.Carries on from entity entire hard work piece semifinished materials hardly rolls cuts the processing is one kind of new processing craft. Because has a rigid better engine bed and the high quality hard alloy tools material and performs coating processing, causes hardly to roll slivers is one effective processing method. Indicated from the factory practical application result that, the hard gear rolls cuts (hardly rolls) the craft to have the broad application prospect.中文翻译淬硬齿轮的加工摘要用于动力传动的齿轮和齿轮箱，其尺寸要求更小，齿轮传动的噪音更低，从而导致对淬硬齿轮的需求，也给齿轮制造厂家提出了探索齿轮加工新方法的要求.概述用于动力传动的齿轮和齿轮箱，其尺寸要求更小，齿轮传动的噪音更低，从而导致对淬硬齿轮的需求，也给齿轮制造厂家提出了探索齿轮加工新方法的要求。

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shock-absorber灰铸铁greycastiron回程return回转体平衡balanceofrotors混合轮系compoundgeartrain积分integrate机电一体化系统设计mechanical-electricalintegrationsystemdesign 机构mechanis m机构分析analysisofmechanis m机构平衡balanceofmechanism机构学mechanism机构运动设计kinematic内方头紧定螺钉n.square-socket set-screw开槽锥端紧定螺钉Slotted set screws with cone point锥销锁紧挡圈Lock rings with cone pin螺钉锁紧挡圈Lock ring with screw限位钉stop pin限位块stop button热敏电阻器预留空hole for thermistor带隔离板的注模浇口Injection gate plane with isolation plate浇模和注模器的温度隔板T emperature isolation plate at injection and injector 拔模锥度（的定位）销draft pins注模插件和分离（夹层）打磨Moulding inserts and partings grinded定距拉杆length bolt定距拉板puller bolt一模多穴Multi-Cavity流道凝料condensed material in runner利用率utilization ratio自动脱螺纹automatic thread demoulding 、motorized thread unwinding, 生产现场Production scene车间workshop生产线production line模具专业英语入水：gate 进入位：gate location 水口形式：gate type 大水口：edge gate 细水口：pin-point gate 水口大小：gate size 转水口：switching runner/gate唧嘴口径：sprue diameter二、流道: runner热流道：hot runner,hot manifold 热嘴冷流道: hot sprue/cold runner唧嘴直流: direct sprue gate 圆形流道：round(full/half runner流道电脑分析：mold flow analysis 流道平衡:runner balance热嘴：hot sprue 热流道板：hot manifold发热管：cartridge heater 探针: thermocouples插头：connector plug 插座：connector socket密封/封料：seal三、运水：water line 喉塞：line lpug喉管：tube塑胶管：plastic tube 快速接头：jiffy quick connectorplug/socker四、模具零件：mold components三板模：3-plate mold 二板模：2-plate mold边钉/导边：leader pin/guide pin 边司/导套：bushing/guide bushing中托司：shoulder guide bushing 中托边L：guide pin顶针板：ejector retainner plate 托板：support plate螺丝：screw 管钉：dowel pin开模槽：ply bar scot 内模管位：core/cavity inter-lock顶针：ejector pin 司筒：ejector sleeve司筒针：ejector pin 推板：stripper plate缩呵：movable core,return core core puller扣机（尼龙拉勾）：nylon latch lock 斜顶：lifter模胚（架）：mold base 上内模：cavity insert下内模：core insert 行位（滑块）：slide镶件：insert 压座/斜鸡：wedge耐磨板/油板：wedge wear plate 压条：plate撑头: support pillar 唧嘴：sprue bushing挡板：stop plate 定位圈：locating ring锁扣：latch 扣鸡：parting lock set推杆：push bar 栓打螺丝：S.H.S.B顶板：eracuretun 活动臂：lever arm分流锥：spure sperader 水口司:bush垃圾钉：stop pin 隔片：buffle弹弓柱：spring rod 弹弓:die spring中托司：ejector guide bush 中托边：ejector guide pin镶针：pin 销子：dowel pin波子弹弓：ball catch模具成形不良用语英汉对照aberration 色差atomization ?化bank mark ?料纹bite 咬入blacking hole 涂料孔(铸疵) blacking scab 涂料疤blister 起泡blooming 起霜low hole 破孔blushing 泛白body wrinkle 侧壁皱纹breaking-in 冒口带肉bubble 膜泡burn mark 糊斑burr 毛边camber 翘曲cell 气泡center buckle 表面中部波皱check 细裂痕checking 龟裂chipping 修整表面缺陷clamp-off 铸件凹痕collapse 塌陷color mottle 色斑corrosion 腐蚀crack 裂痕crazing 碎裂crazing 龟裂deformation 变形edge 切边碎片edge crack 裂边fading 退色filler speak 填充料斑fissure 裂纹flange wrinkle 凸缘起皱flaw 刮伤flow mark 流痕galling 毛边glazing 光滑gloss 光泽grease pits 污斑grinding defect 磨痕haircrack 发裂haze 雾度incrustation 水锈indentation 压痕internal porosity 内部气孔mismatch 偏模mottle 斑点necking 缩颈nick 割痕orange peel 橘皮状表面缺陷overflow 溢流peeling 剥离pit 坑pitting corrosion 点状腐蚀plate mark 模板印痕pock 麻点pock mark 痘斑resin streak 树脂流纹resin wear 树脂脱落riding 凹陷sagging 松垂saponification 皂化scar 疤痕scrap 废料scrap jam 废料阻塞scratch 刮伤/划痕scuffing 深冲表面划伤seam 裂痕shock line 模口挤痕short shot 充填不足shrinkage pool 凹孔sink mark 凹痕skin inclusion 表皮折叠straightening 矫直streak 条状痕surface check 表面裂痕surface roughening 橘皮状表皮皱折surging 波动sweat out 冒汗torsion 扭曲warpage 翘曲waviness 波痕webbing 熔塌weld mark 焊痕whitening 白化wrinkle 皱纹各式模具分类用语英汉对照landed plunger mold 有肩柱塞式模具burnishing die 挤光模landed positive mold 有肩全压式模具button die 镶入式圆形凹模loading shoe mold 料套式模具center-gated mold 中心浇口式模具loose detail mold 活零件模具chill mold 冷硬用铸模loose mold 活动式模具clod hobbing 冷挤压制模louvering die 百叶窗冲切模composite dies 复合模具manifold die 分歧管模具counter punch 反凸模modular mold 组合式模具double stack mold 双层模具multi-cavity mold 多模穴模具electroformed mold 电铸成形模multi-gate mold 复式浇口模具expander die 扩径模offswt bending die 双折冷弯模具extrusion die 挤出模palletizing die 叠层模family mold 反套制品模具plaster mold 石膏模blank through dies 漏件式落料模porous mold 通气性模具duplicated cavity plate 复板模positive mold 全压式模具fantail die 扇尾形模具pressure die 压紧模fishtail die 鱼尾形模具profile die 轮廓模flash mold 溢料式模具progressive die 顺序模gypsum mold 石膏铸模protable mold 手提式模具hot-runner mold 热流道模具prototype mold 雏形试验模具ingot mold 钢锭模punching die 落料模lancing die 切口模raising(embossing) 压花起伏成形re-entrant mold 倒角式模具sectional die 拼合模runless injection mold 无流道冷料模具sectional die 对合模具segment mold 组合模semi-positive mold 半全压式模具shaper 定型模套single cavity mold 单腔模具solid forging die 整体锻模split forging die 拼合锻模split mold 双并式模具sprueless mold 无注道残料模具squeezing die 挤压模stretch form die 拉伸成形模sweeping mold 平刮铸模swing die 振动模具three plates mold 三片式模具trimming die 切边模unit mold 单元式模具universal mold 通用模具unscrewing mold 退扣式模具yoke type die 轭型模各种模具常用成形方式英汉对照accurate die casting 精密压铸powder forming 粉末成形calendaring molding 压延成形powder metal forging 粉末锻造cold chamber die casting 冷式压铸precision forging 精密锻造cold forging 冷锻press forging 冲锻compacting molding 粉末压出成形rocking die forging 摇动锻造compound molding 复合成形rotary forging 回转锻造compression molding 压缩成形rotational molding 离心成形dip mold 浸渍成形rubber molding 橡胶成形encapsulation molding 注入成形sand mold casting 砂模铸造extrusion molding 挤出成形shell casting 壳模铸造foam forming ?泡成形sinter forging 烧结锻造forging roll 轧锻six sides forging 六面锻造gravity casting 重力铸造slush molding 凝塑成形hollow(blow) molding 中空(吹出)成形squeeze casting 高压铸造hot chamber die casting 热室压铸swaging 挤锻hot forging 热锻transfer molding 转送成形injection molding 射出成形warm forging 温锻investment casting 精密铸造matched die method 对模成形法laminating method 被覆淋膜成形low pressure casting 低压铸造lost wax casting 脱蜡铸造matched mould thermal forming 对模热成形模机械类常用英语：冲压模具-零件类punch冲头insert入块(嵌入件)deburring punch压毛边冲子groove punch压线冲子stamped punch字模冲子round punch圆冲子special shape punch异形冲子bending block折刀roller滚轴baffle plate挡块located block定位块supporting block for location定位支承块air cushion plate气垫板air-cushion eject-rod气垫顶杆trimming punch切边冲子stiffening rib punch = stinger 加强筋冲子ribbon punch压筋冲子reel-stretch punch卷圆压平冲子guide plate定位板sliding block滑块sliding dowel block滑块固定块active plate活动板lower sliding plate下滑块板upper holder block上压块upper mid plate上中间板spring box弹簧箱spring-box eject-rod弹簧箱顶杆spring-box eject-plate弹簧箱顶板bushing bolck衬套cover plate盖板guide pad导料块机械类常用英语：冲压模具-模板类top plate上托板（顶板）top block上垫脚punch set上模座punch pad上垫板punch holder上夹板stripper pad脱料背板up stripper上脱料板male die公模(凸模)feature die公母模female die母模(凹模)upper plate上模板lower plate下模板die pad下垫板die holder下夹板die set下模座bottom block下垫脚bottom plate下托板(底板) stripping plate内外打(脱料板) outer stripper外脱料板inner stripper内脱料板lower stripper下脱料板冲压模具-冲压名称类英汉对照plain die简易模pierce die冲孔模forming die成型模progressive die连续模gang dies复合模shearing die剪边模riveting die铆合模pierce冲孔forming成型(抽凸,冲凸) draw hole抽孔bending折弯trim切边emboss凸点dome凸圆semi-shearing半剪stamp mark冲记号deburr or coin压毛边punch riveting冲压铆合side stretch侧冲压平reel stretch卷圆压平groove压线blanking下料stamp letter冲字(料号) shearing剪断tick-mark nearside正面压印tick-mark farside反面压印extension dwg展开图procedure dwg工程图die structure dwg模具结构图material材质material thickness料片厚度factor系数upward向上downward向下press specification冲床规格die height range适用模高die height闭模高度burr毛边gap间隙weight重量total wt.总重量。

中间齿轮intermediate gear(counter gear)副轴齿轮counter shaft gear副轴counter shaft变速器输入轴transmission imput shaft变速器输出轴transmission output shaft变速器主动齿轮轴transmission drive gear shaft变速器主轴transmission main shaft变速器中间轴transmission countershaft变速器轴的刚度rigidity of shaft变速齿轮比（变速比）transmission gear ratio传动比gear ratio主压力line pressure调制压力modulated pressure真空调制压力vacuum modulator pressure速控压力governor pressure缓冲压力compensator or trimmer pressure限档压力hold presure前油泵front pump (input pump )液力传动装置充油压力hydrodynamic unit change pressure 后油泵gear pump (output pump )回油泵scavenge oil pump调压阀pressure -regulator vavle电磁阀调压阀solenoid regulator valve液力变矩器旁通阀converter bypass valve速控阀governor valve选档阀selectro valve换档阀shift valve信号阀signal valve继动阀relay valve换档指令发生器shift pattern generator档位指示器shift indicator(shift torwer)先导阀priority valve流量阀flow valve重迭阀overlap valve液力减速器控制阀retarder control valve液力起步fluid start零速起动stall start液力变矩器锁止converter lockup全液压自动换档系统hydraulic automatic control system电液式自动换档系统electronic -hydraulic automatiec换档shift升档upshift降档downshift动力换档power shfit单向离合器换档freewheel shfit人工换档manual shfit自动换档automaitc shfit抑制换档inhibited shift超限换档overrun shift强制换档forced shift换档点shift point叶片转位blade angle shift换档滞后shift hysteresis换档循环shift schedule换档规律process of power shift动力换档过程timing换档定时property of automatic shift换档品质property of automatic shft换档元件engaging element换档机构gearshift操纵杆control lever变速杆stick shift(gear shift lever)（副变速器）变速杆range selector变速叉shifting fork (gear shift fork)分动箱控制杆transfer gear shift fork变速踏板gear shift pedal变速轨（拨叉道轨）shift rail直接变速direct change(direct control)方向盘式变速column shift (handle change)按钮控制finger-tip control槽导变速gate change空档位置neutral position直接驱动direct drive高速档top gear(high gear)低速档bottom gear(low speed gear)第一档first gear第二档second gear超速档overdirve gear经济档economic gear倒档reverse gear爬行档creeper gear驱动特性drive performance反拖特性coast performance定输入扭矩特性constant input torque performance 全油门特性full throttle performance寄生损失特性no load (parasitic losses)performance 原始特性primary characteristic响应特性response characteristic吸收特性absorption characteristic全特性total external characteristic输入特性characteristic of enhance输出特性characteristic of exit力矩特性torque factor(coefficient of moment)过载系数overloading ratio变矩系数torque ratio能容系数capacity factorr几何相似geometry similarity运动相似kinematic similarity动力相似dynamic similarity透穿性transparency万向节和传动轴universal joint and drive shaft万向节universal joint非等速万向节nonconstant velocity universal joint 等速万向节constant velocity universal joint准等速万向节near constant velocity universal joint 自承式万向节self-supporting universal joint非自承式万各节non self suporting universal joint 回转直径swing diameter等速平面constant velocity plane万向节夹角true joint angle十字轴式万向节cardan (hookes)universal joint万向节叉yoke突缘叉flange york滑动叉slip yoke滑动节，伸缩节slip joint花键轴叉slip shaft yoke轴管叉（焊接叉）tube(weld yoke)十字轴cross(spider)十字轴总成cross assembly挠性元件总成flexible universal joint球销式万向节flexible member assembly双柱槽壳housing球环ball球头轴ball head球头钉button中心球和座centering ball and seat球笼式万向节rzeppa universal joint钟形壳outer race星型套inner race保持架cage可轴向移动的球笼式万向节plunging constant velocity joint筒形壳cylinder outer race柱形滚道星形套inner race withcylinder ball grooves 偏心保持架non-concentric cage滚动花键球笼式万向节ball spline rzeppa universal joint外壳outer housing内壳体inner housing球叉式万向节weiss universal joint球叉ball yoke定心钢球centering ball三球销万向节tripod universal joint三柱槽壳housing三销架spider双联万向节double cardan universal joint凸块式万向节tracta universal joint凸块叉fork yoke榫槽凸块tongue and groove couplijng凹槽凸块groove coupling传动轴drive shaft(propeller shaft)传动轴系drive line传动轴形式drive shaft type两万向节滑动的传动轴two -joint inboard slip ddiveshaft 两万向节外侧滑动传动轴two joint ouboard slip drive shaft 单万向节传动轴single joint coupling shaft组合式传动轴unitized drive shaft传动轴减振器drive shaft absorber传动轴中间轴承drive shaft center bearing传动轴管焊接合件weld drive shaft tube assembly 传动轴特征长度drive shaft length传动轴谐振噪声resonant noise of rive shaft传动轴的临界转速critical speed of drive shaft传动轴总成的平衡balance of drive shaft assembly 允许滑动量slip相位角phase angle传动轴安全圈drive shaft safety strap驱动桥drive axle(driving axle)类型type断开式驱动桥divided axle非独立悬架式驱动桥rigid dirve axle独立悬架式驱动桥independent suspension drive axle转向驱动桥steering drive axle贯通式驱动桥tandem axles“三速”贯通轴"three-speed" tandem axles单驱动桥single drive axle多桥驱动multiaxle drive减速器reducer主减速器final drive单级主减速器single reduction final drive双级主减速器double reduction final drive前置式双级主减速器front mounted double reduction final drive后置式双级主减速器rear mounted double reduction final drive上置式双级主减速器top mounted double reducton final drive行星齿轮式双级主减速器planetary double reduction final drive贯通式主减速器thru-drive双速主减速器two speed final drive行星齿轮式双速主减速器two speed planetary final drive双级双速主减速器two speed double reduction final drive轮边减速器wheel reductor(hub reductro)行星圆柱齿轮式轮边减速器planetary wheel reductor行星锥齿轮式轮边减速器differential geared wheel reductor(bevelepicyclick hub reductor) 外啮合圆柱齿轮式轮边减速器spur geared wheel reductor差速器differential锥齿轮式差速器bevel gear differential圆柱齿轮式差速器spur gear differential防滑式差速器limited -slip differential磨擦片式自锁差速器multi-disc self -locking differential凸轮滑滑块自锁差速器self-locking differential with side ring and radial cam plate 自动离合式自锁差速器automotive positive locking differential强制锁止式差速器locking differential液压差速器hydraulic differential轴间差速器interaxial differential差速器壳differential carrieer(case)主降速齿轮final reduction gear驱动轴减速比axle ratio总减速比total reduction ratio主降速齿轮减速比final reduction gear ratio双减速齿轮double reduction gear差速器主齿轮轴differential pinion-shaft差速器侧齿轮differential side gear行星齿轮spider gear(planetary pinion)螺旋锥齿轮spiral bevel gear双曲面齿轮hypoid gear格里林齿制gleason tooth奥林康型齿制oerlikon tooth锥齿轮齿数number of teeth in bevel gears and hypoid gears锥齿轮齿宽face width of tooth in bevel gears and hypoid gears 平面锥齿轮plane bevel gear奥克托齿形octoid form平顶锥齿轮contrate gear齿面接触区circular tooth contact齿侧间隙backlash in circular tooth差速器十字轴differential spider差速器锁止机构differential locking -device差速器锁止系数differential locking factor差速器壳轴承carrier bearing桥壳axle housing整体式桥壳banjo housing可分式桥壳trumpet-type axle housing组合式桥壳unitized carrier-type axle housing对分式桥壳split housing冲压焊接桥壳press-welding axle housing钢管扩张桥壳expanded tube axle housing锻压焊接桥壳forge welding axle housing整体铸造式桥壳cast rigid axle housing半轴axle shaft全浮式半轴full-floating axle shaft半浮式半轴semi-floating axle shaft四分之三浮式半轴three-quarter floating axle shaft 驱动桥最大附着扭矩slip torque驱动桥额定桥荷能力rating axle capactiy驱动桥减速比driveaxle ratio驱动桥质量drive axle mass单铰接式摆动轴single-joint swing axle双铰接式摆动轴double joint swig axle悬架系suspension system悬架suspension类型type非独立悬架rigid axle suspension独立悬架independent suspension平衡悬架equalizing type of suspension 组合式悬架combination suspension可变刚度悬架variable rate suspension纵置板簧式parallel leaf spring type上置板簧式over slung type下置板簧式under slung type双横臂式double with-bone arm type横置板簧式transversal leaf spring type 双纵臂式double trailing arm type单横臂式single transverse arm type 双横臂式double -wishbone type单横臂式singe trailing arm type双纵臂式double-trailing arm type单斜臂式single oblique arm tyep四连杆式four link type扭矩套管式torque tube drive type第迪安式De Dion type烛式sliding pillar type麦弗逊式MacPherson type金属弹簧式metal spring type空气弹簧式air spring type油气弹簧式hydro-pneumatic spring type 橡胶液体弹簧式hydro-rubber spring type橡胶弹簧式rubber spring type液体弹簧式hydraulic spring type三点悬架three-point suspension四点悬架four-point suspension部件assembly and parts悬架臂suspension arm上悬架臂upper suspension arm控制臂control arm上控制臂upper control arm下控制臂lower control arm纵臂trailing arm横臂transverse arm斜臂oblique arm支撑梁support beam横向推力杆lateral rod纵向推力杆longitudinal rod拉杆tension rod压杆strut bar支撑杆strut bar扭矩套管torque tube变截面弹簧tapered spring钢板弹簧leaf spring(laminated spring) 副钢板弹簧auxiliary spring非对称钢板弹簧unsymmetrical leaf spring单片式钢板弹簧single leaf spring多片式钢板弹簧muotileaved spring纵向钢板弹簧longitudinal leaf spring螺旋弹簧coil spring (helicalspring)空气弹簧air spring囊式空气弹簧bellow type air spring膜式空气弹簧diaphragm typeair spring橡胶弹簧rubber spring type液体弹簧hydraulic spring油气弹簧hydro-pneumatic spring type单气室油气弹簧single chamber hydragas spring双气室油气弹簧double chamber hydragas spring液体弹簧hydraulic spring底盘弹簧chassis spring四分之一椭圆形弹簧quarter elliptic spring半椭圆形弹簧half-elliptic spring(semi-elliptic spring) 四分之三椭圆形弹簧three quarter elliptic spring全椭圆形弹簧full elliptic spring悬臂弹簧cantilever spring簧上质量sprung weight簧下质量unsprung weight垫上弹簧载荷量spring capacity at pad地面弹簧载荷量spring capacity at ground弹簧静挠度spring static deflection弹簧跳动间隙bump clearance of spring弹簧中心距distance between spring centers减振器shock absorber筒式减振器telescopic shock absorber油压缓冲器hydraulic buffer负荷调平式减振器load -levelling shock absorber 液压减振器dydraulic shock absorber可调减振器adjustable shock absorber摇臂式减振器lever type shock absorber磨擦式减振器frictional shock absorber充气减振器gas-filled shock absorber动力减振器dynamic shock absorber减振器卸荷阀shock absorber relief valve减振器进油阀shock absorber intake valve 减振器示功图damper indicator diagram减振器液damper fluid横向稳定器stabilizer anti-roll bar滑动座sliding seat滑板sliding plate弹簧架spring bracket弹簧主片spring leaf钢板弹簧吊耳leaf spring shackle钢板弹簧衬套leaf spring bushing钢板弹簧销leaf spring pin弹簧卷耳spring eyeU 型螺栓U bolt钢板弹簧中心螺栓leaf spring center bolt橡胶衬套rubber bushing缓冲块buffer stopper限位块limiting stopper平衡轴trunnion shaft平衡轴支座trunnion base臂轴arm shaft平横臂equalizer螺纹衬套screw bushing（车身）高度阀levelling valve车架auxiliary tank整体车架unitized frame上弯式梁架upswept frame (kick up frame) 短型车架stub frame发动机支架engine mounting半径杆radius rod平衡杆stabilizer bar制动反应杆brake reaction rod分开式车身和车架separated body and frame车轮wheel车轮尺寸名称wheelsize designation车轮类型wheel type单式车轮single wheel双式车轮dual wheel整体轮毂式车轮wheel with integral hub 组装轮辋式车轮demountable rim wheel 对开式车轮divided wheel可调车轮adustable wheel辐板式车轮disc wheel可反装式车轮reversible wheel辐条式车轮wire wheel安装面attachment face安装面直径attachment face diameter 双轮中心距dual spacing半双轮中心距half dual spacing轮缘flange固定轮缘fixed flange轮缘规格代号flange size disignation 轮缘高度flange height轮缘半径flange radius轮级端部半径flange edge radius轮级宽度flange width内轴承座肩inner bearing cup shoulder 内移距inset横向跳动lateral run-out外移距outset径向跳动radius run-out轮辋rim轮辋尺寸名称rim size disignation轮辋宽度rim width标定轮辋宽度specified rim width轮辋直径rim diameter标定轮辋直径specified rim diameter轮辋类型rim types整体式（深槽式）one-piece(drop -center DC) 半深槽式semi-drop center (SDC)二件式two-piece三件式three-piece四件式four-piece轮毂座hub seat五件式five-piece轮辋轮廓类型rim contour classification深槽轮辋drop center rim(DC)深槽宽轮辋wide drop center rim(WDC) 半深槽轮辋semi-drop center rim(SDC)平底轮辋flat base rim平底宽轮辋wide flat base rim (WFB)全斜底轮辋full tapered bead seat rim (TB) 可拆卸轮辋demountable rim wheel对开式轮辋divided rim(DT)轮辋基体rim base轮辋基体偏移距rim base offset轮辋偏移距rim bevel distance气门嘴孔valve hole气门嘴孔的位置rim hole location锁圈槽gutter锁圈槽沟gutter groove锁圈槽顶gutter tip隔圈spaceband隔圈宽度spacerband width标定轮辋直径specified rim diameter标定轮辋宽度specified rim width花键spline弹性锁圈spring lock ring辐条式车轮轮毂shell (wire shell)轮辋槽well槽角well angle槽深well depth槽底半径well iner radius槽的位置well position槽顶圆角半径well radius top槽宽度well width中心孔center hole中心线center line夹紧块clamp夹紧螺栓clamping bolt锥型座（螺帽定位用）cone seat (for retaining nut)可拆卸档圈detachable endless flange可拆卸弹簧档圈detachable spring flange可拆卸锥形座圈detachable endless taper bead seat ring 轮辐disc辐条wire spoke零移距zeroset弯距bending moment动态径向疲劳试验dynamic radial fatigue test横向疲劳试验cornering fatigue test轴安装axel mounting轴颈安装journal mounting孔径bore轮胎tyre (tire)轮胎系列tyre series轮胎规格tyre size轮胎标志tyre marking速度符号speed symbol胎面磨耗标志tread wear indicator骨架材料framework material层数number of plies层级ply rating外胎cover内胎inner tube胀大轮胎grown tyre充气轮胎pneumatic tyre新胎new tyre有内胎轮胎tubed tyre无内胎轮胎tubeless tyre水胎curing bag保留生产轮胎reserved old series of tyre 普通断面轮胎conventional section tyre 低断面轮胎low section tyre超低断面轮胎super low section tyre宽基轮胎wide base tyre斜交轮胎diagonal tyre子午线轮胎radial ply tyre活胎面轮胎removable tread tyre越野轮胎cross-country tyre沙漠轮胎sand tyre浇注轮胎cast tyre调压轮胎adjustable inflation tyre海棉轮胎foam filled tyre常压轮胎atomospheric pressure tyre 内支撑轮胎internal supporter tyre拱形轮胎arch tyre椭圆形轮胎elliptical tyre实心轮胎solid tyre粘结式实心轮胎cured on solid tyre非粘结式实心轮胎pressed on solid tyre圆柱实心轮胎cylindrical base solid tyre 斜底实心轮胎conical base solid tyre抗静电实心轮胎anti-static solid tyre导电实心轮胎conductive solid tyre耐油实心轮胎oil-resistance solid tyre高负荷实心轮胎high load capacity solid tyre 胎面花纹treadpattern纵向花纹circumferetial pattern横向花纹transverse pattern公路花纹highway tread pattern越野花纹cross-country tread pattern 混合花纹dual purpose tread pattern 定向花纹directional tread pattern雪泥花纹mud and snow pattern花纹细缝pattern sipe花纹块pattern block花纹条pattern rib花纹沟groove花纹加强盘tie-bar of pattern花纹角度pattern angle花纹纹深度pattern depth花纹展开图patttern plan光胎面smooth tread胎冠crown胎面tread胎面行驶面tread cap胎面基部tread base胎面基部胶tread slab base胎面过渡胶transition rubber of tread 缓冲层breaker带束层belt缓冲胶片breaker strip包边胶tie-in strip完带层cap ply胎体carcass帘面层cord ply隔离胶insulation rubber封口胶sealing rubber胎里tyre cavity内衬层inside liner气密层innerliner胎肩shoulder胎肩区shoulder area胎肩垫胶shoulder wedge胎侧sidewall屈挠区flexing area胎侧胶sidewall rubber装饰胎侧decorative sidewall装饰线decorative rib装配线fitting line防擦线胎圈bead钢丝圈bead ring钢丝包胶wire covering胎圈座bead seat胎圈座角度beat seat angle胎圈座圆角半径bead seat radius胎圈座宽度bead seat width可选择的胎圈座轮廓bead seat optional contours 凹陷型center-pente(CP)平峰型flat hump(FH)凸峰型round hump(RH)特殊座架special ledge(SL)胎圈芯bead core三角胶apex胎圈补强带bead reinforcing strip胎圈包布chafer胎圈外护胶bead filler rubber胎踵bead heel胎趾bead toe胎圈底部bead base内胎胎身tube body断面宽度断面高度section height高宽比（H/S）aspect ratio(H/S)外直径overall diameter自由半径free radius转向系steering system类型type机械转向系manual steering system动力转向系power steering system转向操纵机构steering control mechanism直列式转向器in-line steering gear四边联杆式转向机构parallelogram linkage steering整体式动力转向机构integral type power steering总成和部件assemblies and parts转向万向节steering universal joint转向传动轴steering inner articulated shaft转向管柱steering column球轴承套管式转向管柱tube and ball type steering column 可伸缩式转向管柱telescopic steering column折叠式转向管柱collapsible steering column倾斜和缩进式转向管柱tilt and telescopic steering column 吸能式转向管柱energy-absorbing steering column 网络状转向柱管转向轴steering shaft转向横轴cross shaft转向盘steering wheel倾斜式方向盘tilt steering wheel机构转向器manual steering gear蜗杆滚轮式转向器worm and roller steering gear转向器盖cover of steering gear壳体housing转向蜗杆steering worm滚轮roller滚轮轴roller shaft侧盖side cover摇臂轴pitman arm shaft循环球式转向器recirculating ball steering gear循环球和螺母式转向器recirculating ball and nut steering gear循环球齿条齿扇式转向器recirculating ball-rack and sector steering gear 转向螺母steering nut钢球ball转向螺杆steering screw循环球-曲柄销式转向器recirculating ball-lever and peg steering gear 指销stud蜗杆指销式转向器转向齿轮steering pinion转向齿条steering rack动力转向器power steering stgear整体式动力转向器integral power steering gear常压式液压动力转向器constant pressure hydraulic power steering gear 常流式液压动力转向器constant flow hydraulic power steering gear螺杆螺线式转向器screw and nut steering gear蜗杆指销式转向器worm and peg steering gear齿轮齿条式转向器rack and pinion steering gear变传动比转向器steering gear with variable ratio转向控制阀steering control valve滑阀式转向控制器spool valve type阀体valve housing滑阀valve spool转阀式转向控制阀rotary valve type扭杆torsion bar转向动力缸power cylinder转向油泵power steerig pump转向油罐oil reservoir转向传动杆系steering linkage动力转向系布置power steering system layout反作用阀reactive valve梯形转向机构ackerman steering整体式转向梯形杆系ackerman steering linkdage分段式转向梯形杆系divided ackerman steering linkage 中间转向杆intermediate steering rod转向摇臂pitman arm转向直拉杆steering drag link中间转向联杆center steering linkdage端部螺塞end plug球头销ball stud球头座ball cup压缩弹簧compression spring梯形机构tie rod linkage梯形臂tie rod arm转向横拉杆steering tie rod接头socket横拉杆端接头tie rod end分段式梯形机构split tie rod type tie rod linkage摆臂swing arm动力转向power steering气压式动力转向air-power steering液压式动力转向hydraulic power steerig液压常流式动力转向hydraulic constant flow type power steering 液压储能式动力转向hydraulic accumulator power steering慢速转向slow steeirng快速转向fast steering (quick steering)过度转向oversteering转向不足understeering转向系刚度steering system stiffness转向盘自由行程free play of steering wheel转向器转动力矩rotating torque of steering gear转向力矩steering mometn转向阻力矩steering resisting torque转向力steering force转向传动比steering gear ratio (steering ratio0恒定转向传动比constant ratio steering可变转向传动比variable ratio steering转向系角传动比steering system angle ratio转向器角传动比steering gear angle ratio转向传动机构角传动比steering linkage angle ratio转向器传动效率steerign gear efficiency正效率forward efficiency逆效率reverse efficiency转向器扭转刚度torsional stiffness of steering gear转向盘总圈数total number of steering wheel turns转向器总圈数total turns of steering gaer转向器传动间隙steering gar cleanrance摇臂轴最大转角max.rotating angle of pitman arm shaft转向摇臂最大摆角max. Swing angle of steering pitman arm转向器反驱动力矩reverse rotating torque of steering gear转向器最大输出扭矩steering gear max. Output torque最大工作压力max. Working pressure额定工作压力rated working pressure转向油泵理论排量theoretical displacement of pump限制流量limited flow转向控制阀预开隙pre-opened play of steering contol valve转向控制阀全开隙totally -opened play of steering control valve转向控制阀内泄漏量internal leakage in steering control valve转向控制阀压力降pressure loss in steering control valve转向器角传动比特性steering gear angle ratio characteristic转向器传动间隙特性steering gear clearance characterstic转向器传动效率特性steering gear efficeieny characteristic转向力特性steering force characteristic动力转向系灵敏度特性power steering systme response characteristic转向控制阀压力降特性steeirn gcontrol valve presrue loss characteristtic 前桥front axle工字梁I-beam双工字梁twin I-beam非驱动桥dead axle转向节steering knuckle挂车转向装置steering system of trailer中央主销式转向装置central king pin type steering systme 无主销转向装置no king pin type steering system全杆式转向装置all linkage tyep steering system球销式转向节ball and socket steering knuckle转向节止推轴承steering knuckle thrust bearing前轮轴front wheel spindle转向盘轴steering spindle转向节轴knuckle spindle转向节臂steering knuckle arm（转向节）主销knuckle pin(King pin)反拳式前桥reverse elliott axle反拳式转向节reverse elliott steering knuckle叉式前桥elliott type axle叉式转向节elliott steering knuckle制动系braking ssytem类型tyep行车制动系统service braking sytem应急制动系统secondary (emergency )braking sytem 驻车制动系统parking braking system辅助制动系统auxiliary braking system自动制动系统automatic braking sytem人力制动系统muscular energy braking sytem助力制动系统energy assisted braking system动力制动系统non-muscular energy braking system 惯性制动系统inertial braking styem重力制动系统gravity braking sytem单回路制动系统single-circuit braking system双回路制动系统dual -ciurcuit braking system单管路制动系统single-line braking system双管路制动系统dual braking sytem多管路制动系统multi-line braking sytem连续制动系统continuous braking sytem半连续制动系统semi-continuous braking sytemm非连续制动系统non-continuous braking system伺服制动系统servo braking system液压制动系统hydraulic braking sytem电磁制动系统electormagnetic braking sytem机械制动系统mechanical braking sytem组合制动系统combination braking sytem基本术语bsic terms制动装备braking equipment组成部件constituent elements制动力学braking mechanics渐进制动gradual braking制动能源braking energy source制动力矩braking torque总制动力total braking force干扰后效制动力矩distrubing residual braking torque总制动距离total braking distance有效制动距离active braking distance制动力分配率braking force distaribution rate制动效能因素（制动强度）braking efficiency factro制动力braking work瞬时制动功率instantaneous braking power保护压力rptection pressure报警压力alarm pressure制动系滞后braking system hysteresis制动效果百分数percentage of the braking efficiency停车距离（制动距离）stopping distance充分发出的平均减速度mean fully developed braking deceleration (MFDD) 制动反应时间reaction time促动时间actuating time初始反应时间initial response time制动力增长时间build-up time of braking force 有效制动时间active braking time释放时间release time驾驶员反应时间reaction time of driver机构滞后时间mechanism hysteresis time增长时间build-up time of braking force 主制动时间main braking time总制动时间total braking tiem停车时间stopping tiem开启行程opening travel空行程spare travel中间行程mid-travel制动储备行程reserve brake travel断油行程cut-off travel行程损失loss of travel缩小比（减压比）reduction ratio回缩retraction两片法two-plate method单片法single-plate method含水量moistrue content单轮控制individual wheel control多轮控制multi wheel control轴控制axle control边控制side control对角控制diagonal control组合多轴控制combined multi-axle control 可变选择variable selection最低控制速度minimum control speed传感器信号选择sensor signal低选择select -low高选择select-high预定选择predetermined selectin车轮选择selection by wheel平均选择average selecton分辨率resolution rate控制周期control cycle控制频率control frequency控制力control force作用力control froce制动器效能因素application force制动器材的滞后brake hysteresis制动器输出力矩brake output torque制动器额定力矩brake rating torque制动蹄效能因素brake shoe efficiency factro制动蹄作用压力application pressure of brake shoe assebmly 制动蹄释放压力release pressure of brake shoe最大制动蹄中心升程maximum shoe centre lift制动鼓直径drum diameter制动鼓宽度drum width制动鼓厚度drum thickness制动盘厚度disc thickness（鼓或盘）的摩擦面积swept area制动衬片吸收功率power absorption of lining制动衬片包角lining arc制动衬片单位面积制动力lining drag衬片摩擦系数lining mu衬片摩擦面积/每轴lining area/axle衬片摩擦面积/每个制动器lining area/brake踏板行程pedal travel踏板自由行程free pedal travel踏板最大行程maximum pedal travel踏板力pedal effort有效踏板长度effective pedal length踏板速比pedal velocity ratio踏板回位弹簧力pedal return spring load踏板回位弹簧刚度pedal return spring rate制动初速度initial speed of braking制动减速度braking deceleration瞬时制动减速度instantaneous braking deceleration 平均制动减速度mean braking deceleration最大制动减速度maximum braking deceleration石油基制动液petroleum base brake fluid非石油基制动液non-petroleum base brake fluid最低湿沸点minimum wet boiling point防冻液anti-freeze liquid冷却液cooling liquid供能装置energy supplying device真空泵vacuum pump喷射器ejector真空罐（筒）vacuum tank空压机air compressor气缸盖cylinder head气缸体cylinder block活塞piston火塞环piston ring连杆connecting rod活塞销piston pin曲轴crank shaft进气阀intake valve排气阀exhaust valve储气罐（筒）air storage reservoir调压阀pressure regulating valve单向阀single check valve止回阀、单向阀check valve滤清器filter进气滤清器air intake filter排气滤清器air exhaust filter管路滤清器line filter滤网（芯）strainer油水分离器oil and water seperator防冻器aiti-freezer空气干燥器air dryer排放阀drain valve压力保护阀pressrue protection valve控制装置control device行车制动踏板装置service braking pedal device 制动踏板braking pedal踏板护套pedal pad踏板支架pedal brackeet衬套bushing套管collar销轴axis pin回位弹簧retruen spring驻车制动操纵装置parking brake control device 操纵杆control lever操纵杆支架control lever bracket操纵杆导套control lever guide collar齿杆（棘轮）rod rack(ratchet)棘抓ratchet pawl操纵揽绳control cable平衡臂equalizer拉杆（拉绳）pull rod(pull wire)拉杆导套pull rod guide collar制动杆brake lever手制动杆hand lever气制动阀aire brake valve单腔气制动阀single-chamber air brake valve 推杆plunger气阀air valve平衡弹簧equalizing spring膜片diaphragm双腔气制动阀dual-chamber air brake valve串列式双腔气制动阀series dual -chamber air brake valve并列式双腔气制动阀parallel dual-chamber air brake valve三腔气制动阀triple-chamber air brake valve三通路控制阀three way control valve双向止回阀（双通单向阀）dual way check valve继动阀relay valve快放阀quick release valve继动快放阀relay and quick release valve挂车制动阀trailer braking valve挂车制动应急继动阀trailer braking relay emergency valve挂车制动保护阀trailer braking protecton valve挂车制动放松阀trailer braking relax valve手控制动阀hand braking valve传能装置transmission device制动主缸brake master cylinder有补偿孔式制动主缸compensating brake master cylinder无补偿孔式制动主缸portless brake master cylinder串列双腔式制动主缸series dual chamber brake master cylinder 盘式制动器制动缸disc brake cylinder双腔制动主缸tandem master cylinder主腔。

附录AThe working principle of gear pump By into the internal gear pump a pair of gear, gear of two side have cover, shell, cover and gear of each tooth formed many seal groove between work cavity. When gear as shown on the right direction rotates, oil absorption cavity due to mesh with each other in engagement gradually withdraw, seal volume increase gradually, vacuum forming part of the oil in the tank, so outside the atmospheric pressure, the function of the oil absorption, oil absorption into the cavity, the gear, and as full of slot between gear rotating, put the oil to the left pressure oil lumen. In one side, because gear oil pressure here into meshing, seal gradually working chamber volume will decrease, the oil will be out, from pressure oil chamber pressure is sent to the in pipeline. In the working process of the gear pump, as long as two gear direction of rotation unchanged, its to absorb the soot, the position of the cavity is sure the same. Here the meshing point tooth contact line has been space high and low voltage cavity with two plays a role in the gear pump oil, so do not need set up special assignment institutions, this is it and other types of volumetric hydraulic pump differences. The concept of the gear pump is very simple, that is, it is the most basic form of two dimensions of the same gear in a closely in the shell, the shell rotating mesh with each other the internal similar "8" glyph, two gear, gear inside the outer diameter and shell on both sides and closely. From the extruder materials in the suction into two gear, and full of the middle space, with the rotation of the teeth, and the last in the shell movement along the two teeth mesh eduction.I n terms of speaking, the gear pump also called positive displacement device, that is likea cylinder piston, when in a tooth into another tooth fluid, liquid space by mechanical discharged. To squeeze Because liquids as incompressible, so the liquid and tooth can occupy the same space at the same time, such, liquid was ruled out. Because of the constant mesh, this phenomenon is in continuous occur, thus also in the pump export provides a continuous removal amount, pump every around, the amount of discharge are the same. Along with the drive shaft rotation incessantly, the pump is also not a break from fluid. The flow rate of the pump and the speed of the pump directly about.In fact, there were a small amount of the pump fluid loss, which make the pump efficiency can't reach 100%, because these fluid is used to lubricating bearings and gear, and on both sides of the pump body can't without clearance fit, so can't make fluid from export 100% from a small amount of fluid loss, so is inevitable. However pump can still operating well, for most extrusion material, it can still reach 93% ~ 98% of efficiency. For viscosity or density in the process of change, this pump is not fluid too much influence. If there is a damper, such as in the row export side put a screen or a limitation for the device, the pump will promote the fluid through them. If the damper in work, that is, if the mesh changes become dirty, blocked, or the limit of back pressure increased, the pump willremain constant flow, until it reaches the weakest part of the device of mechanical limit (usually equipped with a torque limit device).For a pump rotation speed, in fact, there is a limit, it mainly depends on process flow, if the transfer of oil, it can pump is at high speed rotating, but when the fluid is a kind of high viscosity polymer melt, the restrictions will be significantly reduced. Promote high sticky fluid into the suction side of the two tooth space is very important, if the space did not fill, it can't pump discharge accurate flow, so the PV value (pressure x velocity is also a) a limiting factor, and it's a process variables. Because these restrictions, the gear pump manufacturers will provide a series of products, i.e., different specifications and displacement (every turn a week does quantity). The pump will and the concrete application process, in order to make the system combined capacity and price to achieve optimal.附录B齿轮泵的工作原理轮泵由装在壳体内的一对齿轮所组成，齿轮两侧有端盖，壳体、端盖和齿轮的各个齿间槽组成了许多密封工作腔。