Contitech马牌皮带技术资料

转弯皮带宽度设计-概述说明以及解释1.引言1.1 概述转弯皮带是一种用于将物料从一条输送带平稳地转移到另一条输送带的装置。

它被广泛应用于各种工业领域，如矿山、港口、化工等。

转弯皮带的宽度设计是确保物料在转弯过程中能够稳定运输的重要因素。

在转弯过程中，由于受到离心力的作用，物料有可能会产生偏移、漏落或堆积等问题。

为了避免这些不良现象的发生，转弯皮带的宽度设计需要考虑多种因素，包括物料的性质、输送带的速度、转弯角度等。

首先，物料的性质对转弯皮带宽度设计有着重要的影响。

不同的物料具有不同的粘性、流动性和磨损性等特性，这些特性会直接影响物料在转弯过程中的运动状态。

因此，根据物料的性质合理确定转弯皮带的宽度，可以减少物料的漏落和堆积现象，确保物料的平稳运输。

其次，输送带的速度也是决定转弯皮带宽度设计的重要因素之一。

当输送带的速度较高时，物料在转弯过程中所受到的离心力也会增大，容易引起物料的偏移和漏落。

因此，在设计转弯皮带的宽度时，需要根据输送带的速度来选择合适的宽度，以减少物料的运动不稳定性。

最后，转弯角度也会对转弯皮带宽度设计产生影响。

一般而言，转弯角度越大，物料在转弯过程中所受到的离心力也会越大，导致物料的运动不稳定性增加。

因此，在设计转弯皮带的宽度时，需要考虑转弯角度的影响，并结合物料的性质和输送带的速度来确定合适的宽度。

总之，转弯皮带宽度的设计是确保物料在转弯过程中能够稳定运输的重要因素。

通过合理考虑物料性质、输送带速度和转弯角度等因素，可以有效地降低物料的运动不稳定性，提高物料的输送效率和质量。

在今后的研究中，我们需要进一步深入探讨转弯皮带宽度设计的优化方法，以应对不同领域的实际应用需求。

1.2文章结构文章结构是指文章的组织形式和框架，它有助于读者理解文章的逻辑结构和发展思路。

本文将按照以下结构逐步展开对转弯皮带宽度设计的探讨：1. 引言：首先，提出了对转弯皮带宽度设计的重要性和现实意义，为读者引入本文的主题。

Overall catalogBRECO®-BRECOFLEX®-TIMING BELTSSYNCHROFLEX®-TIMING BELTSCOMPONENTSBRECO AntriebstechnikBreher GmbH & Co.Kleiststr. 53D-32457 Porta Westfalicaphone: +49 (0)5731 / 7670-0fax: +49 (0)5731 / 7670-16www.breco.deinfo@breco.deContiTechAntriebssysteme GmbHContinentalstr. 1D-29451 Dannenbergphone: +49 (0)5861 / 806-0fax: +49 (0)5861 / 806-302www.contitech.dedannenberg@antriebssysteme.contitech.deBRECO®and BRECOFLEX®TIMING BELTS are registeredtrademarks of BRECO Antriebstechnik Breher GmbH & Co.SYNCHROFLEX®is a registered trademark ofContiT ech Holding GmbH, Continental AGMULCO Europe-EWIVPostkamp 14D-30159 Hannoverphone: +49 (0)511 / 16602-77fax: +49 (0)511 / 16602-84www.mulco.deinfo@mulco.deMULCO®is a registered trademark ofWilhelm Herm. Müller GmbH & Co. KGAll rights for technical modifications within theproduct development are withheldVersion 41/03/2000Printed in Germany©2003BRECO Antriebstechnik Breher GmbH & Co.ContiT ech Antriebssysteme GmbHMulco Europe-EWIVAll rights withheldNo parts of this document may be reproducedTIMING BEL TSTIMING BELTS3Mulco overall catalogPageT able of contents of powertransmission technology ................................4, 37T able of contents of lineartechnology ....................................................5, 129T able of contents of transporttechnology ....................................................6, 181T able of contents of components ................7, 235Mulco Europe-EWIV..............................................8Mulco online .......................................................10Partners in the Mulco Europe-EWIV...................12The manufacturersBRECO AntriebstechnikBreher GmbH & Co.........................................14ContiTech Antriebssysteme GmbH ................15Polyurethane timing belts ..................................16Application examples .........................................17Manufacturing processBRECO ®,BRECOFLEX ®manufacturingprocess............................................................18SYNCHROFLEX ®manufacturing process .......19Timing belt types ................................................20Available versions...............................................24Antistatic SYNCHROFLEX ®TIMING BELTS ..........25Characteristics of BA T profile .. (26)PageGeneral informationsT olerances.......................................................28Angular drives................................................30Belt guidance .................................................31T ooth gap shapes...........................................31T ooth shear strength......................................32T ension cord strength ....................................32Flexibility ........................................................32Safety factors..................................................33Pre-tension force ............................................34Influence variables .........................................34Design information........................................35Mounting instruction.....................................35List of formulae..............................................36Index ......................................................................354Warranty.. (363)Table of contents4Power transmission technologyPageGeneral informationsReview of product and performance (38)The E tension member...................................39A T GEN III / ATP GEN III..................................40Calculation example Calculation example ......................................42AT high performance timing belt - endless A T 3 GEN III (SFX)............................44A T 3(SFX)............................46A T 5 GEN III (SFX)............................48A T 5, AT 5-DL,A T 5-DR (SFX / BFX)............50 / 52A T10 GEN III (SFX)............................54A T10, AT 10-DL A T10-DR, A T 10-T (SFX / BFX)............56 / 58A T20, AT 20-T (SFX / BFX)............60 / 62AT high performance timing belt - endless A TP 10 GEN III (SFX)............................64A TP 10, ATP 10-DL (SFX / BFX)............66 / 68A TP 15, ATP 15-DL (SFX / BFX)............70 / 72Self-guiding timing belts - endless BA T 10(BFX). (74)BA TK 10(BFX)............................76SFAT 10(BFX)............................78SFAT 15(BFX)............................80SFAT 20(BFX)............................82A TK 5 K6-E (BFX)............................84A TK 10 K6,A TK 10 K6-DL,A TK 10 K6-DR (BFX)............................86TK 5 K6(BFX)............................88TK 10 K6(BFX)............................90TK 10 K13(BFX)............................92(BFX = endless BRECOFLEX ®TIMING BELTS)(SFX = endless SYNCHROFLEX ®TIMING BELTS)T able of contents for power transmission technologyPageT standard timing belts - endless T 2(SFX)............................94T 2.5, T 2.5-DL (SFX)............................96T 5, T 5-DL, T 5-DR (SFX / BFX)..........98 / 100T 10, T 10-DL,T 10-DR, T 10-T (SFX / BFX)........102 / 104T 20, T 20-DL,T 20-DR, T 20-T (SFX / BFX)........106 / 108Imperial timing belts - endless M (MXL)(SFX)..........................110XL (BFX)..........................112L (BFX)..........................114H, H-DL, H-DR,H-T (BFX)..........................116XH (BFX).. (118)F flat belts - endless F 2.0(BFX)..........................120F, AF, BF, CF , DF(SFX) (121)Timing belts with special profiles - endless K 1, K 1.5(SFX)..........................122V (incl. imperial)(SFX)..........................1245T able of contents of linear technologyLinear technologyPage General informationsConstruction and properties........................130Construction features ..................................131Coarse design ...............................................131List of formulae, terms, definitions.............133A TL high performance timing belt - open length A TL 5(BRECO M).................140A TL 10(BRECO M).................142A TL 20(BRECO M).................144A T high performance timing belt - open length A T 3(BRECO M).................146A T 5(BRECO M).................148A T 10(BRECO M).................150A T 20(BRECO M).................152Self-guiding timing belts - open length BA TK 10(BRECO M).................154SFA T 10(BRECO M).................156SFA T 20(BRECO M).................158T standard timing belts - open length T 2.5(BRECO M).. (160)T 5(BRECO M).................162T 10(BRECO M).................164T 20(BRECO M).................166Imperial timing belts - open length T 1/5“(BRECO M).................168T 3/8"(BRECO M).................170T 1/2"(BRECO M).................172T 7/8"(BRECO M).................174F flat belts - open length F 1.0(BRECO M).................176F 2.0(BRECO M).................177F 3.0(BRECO M).................178open length SYNCHROFLEX ®TIMING BELTSK 1.5, M, T 2, T 2.5(SFX) (179)(BRECO M = BRECO open length)(SFX = SYNCHROFLEX ®TIMING BELTS)6T able of contents of transport technology(BRECO M = BRECO open length, joined)(BFX = endless BRECOFLEX ®TIMING BELTS)(SFX = endless SYNCHROFLEX ®TIMING BELTS)Transport technologyPageAT high performance timing belt - joined A T 3(BRECO V)..................182A T 5(BRECO V)..................184A T 10, A T 10-T (BRECO V)..................183A T 20, A T 20-T (BRECO V)..................183Self-guiding timing belts - joined SFAT 10(BRECO V)..................184SFAT 20(BRECO V)..................184BA T 10(BRECO V)..................185BA TK 10(BRECO V)..................185Self-tracking beltsConstruction............................................186Versions ...................................................187A TK 5 K6(BRECO V)..................188A TK 10 K13,A TK 10 K13-T (BRECO V)..................188A TK 10 K6(BRECO V)..................189A TK 20 K13(BRECO V)..................189TK 5 K6(BRECO V)..................190TK 10 K6(BRECO V)..................190TK 10 K13,TK 10 K13-T (BRECO V)..................191TK 20 K13(BRECO V)..................191TK1/2“K 13,TK1/2“K 13-T (BRECO V)..................192 Ordering examples......................................193T- standard timing belts - joinedT 2.5(BRECO V)..................194T 5, T 5-DL, T 5-T (BRECO V)..................194T 10, T 10-DL, T 10-T (BRECO V)..................195T 20, T 20-DL, T 20-T (BRECO V)..................195PageImperial timing belts - joined T 1/5“(BRECO V)..................196T 3/8"(BRECO V)..................196T 1/2“, T 1/2“-T (BRECO V)..................197T 7/8"(BRECO V)..................197 A TN systemATN timing belts - joined .............................198ATN 10(BRECO V)..................200ATN 12.7(BRECO V)..................200ATN 20(BRECO V)..................201ATNS 20(BRECO V)..................201ATN 10 K6(BRECO V)..................202ATN 12.7 K6(BRECO V)..................202Profile fastening...........................................204Timing belt lock.. (206)Coatedtiming belts(BRECO / BFX / SFX) (208)Flighted beltsFlighted timing belt (BRECO / BFX)............219Designcharacteristics (BRECO / BFX)............220Flights from existing moulds (BRECO / BFX)............224Integrated flights (SFX)..........................226joined profiles (SFX)..........................227Timing belts with brushes (SFX)..........................228Calculation ...................................................230Mechanical processed timing belts (BRECO / BFX / SFX)...2327Table of contents of componentsComponentsPageOrdering information .......................................236Components for A TN system Synchronising pulleysA T 10........................................................252A TN 12.7..................................................240A T 20.. (254)Self-tracking pulleysA TN 10 K6................................................242A TN 12.7 K6.............................................244 Guide rails.....................................................246Synchronising pulleys, A T profileA T 3...............................................................248A T 5...............................................................250A T10..............................................................252A T 20.............................................................254Synchronising pulleys, A T profileA TP 10...........................................................256A TP 15...........................................................258Synchronising pulleys, self-guiding profiles BA T 10...........................................................260BA TK 10........................................................262SFA T 10.........................................................264SFA T 15.........................................................266SFA T 20.........................................................268Synchronising pulleys, T profileT 2.................................................................270T 2.5..............................................................272T 5.................................................................274T 10...............................................................276T 20 (278)Synchronising pulleys for self-tracking timingbeltsA TK 5 K6.......................................................280A TK 10 K13...................................................282A TK 10 K6.....................................................284A TK 20 K13...................................................286TK 5 K6.........................................................288TK 10 K13.....................................................290TK 10 K6.......................................................292TK 20 K13.....................................................294TK 1/2“K13...................................................296PageSynchronising pulleys, imperial profileM...................................................................298XL (T1/5“).....................................................300L (T3/8“).......................................................302H (T1/2“)......................................................304XH (T7/8“)....................................................306Synchronising pulleys, special profilesK 1.5..............................................................308Synchronising shaftsA T 3...............................................................310A T 5...............................................................310A T 10.............................................................312T 2.5..............................................................314T 5.................................................................314T 10...............................................................314XL (T1/5“).....................................................316L (T3/8“).......................................................316H (T1/2“)......................................................3165M.................................................................3188M.................................................................318Sychronising shafts with tensioning tenons A T 5...............................................................320A T 10.............................................................320T 2.5..............................................................322T 5.................................................................322T10................................................................322Synchronising pulleys withtensioners..........................................................324T ension rollers ...................................................334Clamp plates......................................................342T ension plates ...................................................346Guide rails .........................................................350Note: The range of our stock pulleys is to be found under the various profile types and the respective tooth pitch. The stock pulley dimensions are marked in blue.8Mulco-Europe EWIV9Mulco-Europe EWIV10Mulco OnlineMulco belt-pilot - the online support at www.mulco.deMany people talk about being close to the customer,but we are there. Consulting before the start of design has always been a major part of the secret of Mulco-Europe EWIV’s success. Now this customer-oriented approach has been taken a decisial step further with the Mulco belt-pilot. As from now , the interactive Internet service will enable you to process customized design solutions online - round the clock the whole year through.The Mulco belt-pilot product catalogWhether drive, linear or transport technology or components are concerned, the Mulco belt-pilotgives you access to all necessary product information in every field.The Mulco belt-pilot CAD downloadThe use of our CAD download is free of charge and allows you to copy our timing belts and componentsinto your CAD system.11Mulco OnlineCalculation using the Mulco belt-pilotDetermining the number of teeth, configuring the belt width or calculating the diameter of pulleys - the versatile Mulco belt-pilot calculation options will help you quickly find the right answers.E-Mail enquiries using the Mulco belt-pilotDo you need any more information about products or calculations? In this case, just contact us by e-mail.Your e-mail enquiries will be immediately forwarded to a Mulco partner in your region.Mulco belt-pilot - informative, easy and quick The use of all program components are free of charge. The easy system operation supports you in quickly finding the correct timing belt and thecorresponding components such as pulleys. A video animation provides you with an overview of thesystem and explains all program functions.12Partners of the Mulco Europe EWIV The manufacturersYour contact partner in Germany ContiT echAntriebssysteme GmbH Continentalstrasse 1D-29451 Dannenbergphone: ++49 (0)5861 / 806-0fax: ++49 (0)5861 / 806-302www.contitech.dedannenberg@antriebssysteme.contitech.de RRGINDUSTRIETECHNIK GMBHBrunshofstraße 10D-45470 Mülheim/Ruhrphone: ++49 (0)208 / 3783-0fax: ++49 (0)208 / 3783-158www.rrg.dezahnriemen@rrg.deBRECO Antriebstechnik Breher GmbH & Co. Kleiststrasse 53D-32457 Porta Westfalica phone: ++49 (0)5731 / 7670-0 fax: ++49 (0)5731 / 7670-16 www.breco.deinfo@breco.deHilger u. Kern GmbH IndustrietechnikKäfertaler Straße 253D-68167 Mannheimphone: ++49 (0)621 / 3705-0 fax: ++49 (0)621 / 3705-490 www.hilger-kern.de antriebstechnik@hilger-kern.de Anton Klocke Antriebstechnik GmbH Senner Strasse 151D-33659 Bielefeldphone: ++49 (0)521 / 95005-01 fax: ++49 (0)521 / 95005-11 www.klocke-antrieb.deinfo@klocke-antrieb.de Wilhelm Herm. MüllerGmbH & Co. KGPostkamp 14D-30159 Hannoverphone: ++49 (0)511 / 16602-0 fax: ++49 (0)511 / 16602-10 info@Reiff - T echnischeProdukte - GmbHTübinger Straße 2 - 6D-72762 Reutlingenphone: ++49 (0)7121 / 323-304 fax: ++49 (0)7121 / 323318 www.reiff-tp.dezahnriemen@reiff-gmbh.de Roth GmbH & Co. KG Andernacher Straße 14D-90411 Nürnbergphone: ++49 (0)911 / 99521-0 fax: ++49 (0)911 / 99521-70 www.roth-ing.deinfo@roth-ing.deWalter RothermundtGmbH & Co. KGAm Tannenbaum 2D-41066 Mönchengladbach phone: ++49 (0)2161 / 69462-0 fax: ++49 (0)2161 / 664469 www.rothermundt.deinfo@rothermundt.de13Partners of the Mulco Europe EWIVYour contact partners in further European StatesGeneral contactMULCO Europe-EWIV Postkamp 14D-30159 Hannoverphone: ++49 (0)511 / 16602-77fax: ++49 (0)511 /16602-84www.mulco.de info@mulco.deNetherlands and BelgiumBergmann Industrial B.V .Postbus 752NL-3000 A T Rotterdam phone: ++31 10 / 5113944fax: ++31 10 / 5117470www.bergmann-industrial.nlaandrijftechniek@bergmann-industrial.nl SwitzerlandAngst + Pfister AG Thurgauerstraße 66CH-8052 Zürichphone: ++41 (0)1306 6111fax: ++41 (0)1 302 18 71www.angst-pfister .com ch@ ItalyAngst + Pfister SpA Viale Teodorico 25I-20149 Milanophone: ++39 2 3 1061fax: ++39 2 33103 148www.angst-pfister .com it@ SwedenAratron AB Box 20087S-16102 Bromma phone: ++46 (0)8 /981875fax: ++46 (0)8 / 984281www.aratron.se info@aratron.se FranceBINDER MAGNETIC1, Alleé des Barbanniers F-92632 Genevilliers Cedex phone: ++33 (0)1/ 46138080fax: ++33 (0)1 / 461380-99www.binder-magnetic.fr info@binder-magnetic.frSpainDinámica Distribuciones S.A.Ctra. No. II, km 592.6E-08740 S. Andreu de la Barca phone: ++34 93 / 6533500fax: ++34 93 / dinamica@ AustriaHaberkorn GmbH Modecenterstraße 7A-1030 Wienphone: ++43 1 / 7431030-0fax: ++43 1 / 74310-29zr@Great BritainTransmission Developments Co. (G.B.) LTD.Dawkins Road Hamworthy GB-Poole Dorset BH15 4HF phone: ++44 1202 / 675555fax: ++44 1202 / sales@TIMING BE LTS1415The manufacturers16The production methods according to whichBRECO ®,BRECOFLEX ®and SYNCHROFLEX ®TIMING BELTS are produced, allow keeping within tight tolerances which guarantee a uniform loaddistribution during power transmission. These poly-urethane-timing belts are suitable for thetransmission of high torques as well as the precise positioning and transport of various goods.Properties mechanical •positive fit, synchronous run•constant length, no post-elongation •low noise•wear resistant •low-maintenance •highly flexible•positional and angular accuracy•can be crossed (see chapter …Angular drives“•fatigue resistant, low extension steelcord tensionmembers•Beltspeed up to 80 ms -1•small build sizes•favourable power-to-weight ratio •low pre-tension •low bearing load•permits large centre distances •permits large transmission ratios•high degree of efficiency, max. 98 %chemical:•hydrolysis resistant •resistant to aging•temperature resistant from -30° to +80°C,design SYNCHROFLEX ®TIMING BELT GEN III up to 100°C (see information in the text …Construction“)•tropical climate resistant•resistant against simple oils, fats and petrol•resistant to some acids and lyesConstructionBRECO ®,BRECOFLEX ®AND SYNCHROFLEX ®TIMING BELTS are manufactured of wear resistantpolyurethane and high tensile steel cord tension members. Both high quality materials combined form the basis for dimensionally stable and high resistance polyurethane timing belts. Polyurethane timing belts have a very high span rigidity. No post-elongation of the tension members is to be expected in continuous operation. Only under extreme load and after a short run-in time, the pre-tension of the belts might slightly reduce by the tension members settling, making a once-only re-tensioning of the timing belt unavoidable.The timing belts are temperature resistant with ambient temperatures from -30°C to +80°C.Applications close to the limit temperatures (<-10°C and >50°C), however, might require adapted dimensioning. For specific temperature ranges various belt materials are available, e.g. theSYNCHROFLEX ®TIMING BELT GEN III is temperature resistant up to 100°C. Please contact your Mulco partner for this type of application.For further information about the resistance ofpolyurethane timing belts please contact your Mulco partner.TIMING BEL TS17Film stretching unitIn a film stretching unit the films and belts are subject to targeted changes to their characteristic features. Due to the stretching process the molecular chains are aligning in pulling direction and the tensile strength is increased. The stretching process is carried out using heated rollers.The change in speed of eachfollow-up roller should be 3 to 3.5 %.Design characteristics:The rollers on the drive side areequipped with over-mounted pulleys.The number of teeth of pulleys arrangedone after the other is reduced by 1: z = 33/32/31 etc.The belt arrangement of the double-sided endless belt is similar to the film routing.T ransmission data:BRECOFLEX ®TIMING BELT 50 T 20 /7500 DL Rotational speed n 1=400 rpm T ransmission power P =12 kW Drive pulley assembly z 1=36SYNCHROFLEX ®TIMING BELTS with casted flights/profiles, post-manufacture mechanical reworkedAssembly beltProduct separationBRECO ®TIMING BELTS with welded flights/profilesTIMING BE LTS18BRECO M ::The BRECO ®TIMING BELT ismanufactured in open length. The tensionmembers are always arranged with parallel edges.Open length is required e.g. in linear transmissions.All tension members assume part of the load.BRECO V: BRECO ®TIMING BELTS are manufactured from open length material welded to endless belts.In the join area the half number of tension members assume part of the load. The use ofendless joined BRECO ®TIMING BELTS is preferred in the conveying technology to handle any centre distance.Application areasOpen length for linear transmissionsRotary movements are converted into linear movements by linear transmissions. The BRECO ®TIMING BELT in its open length delivery form is preferably fitted to the machine part to be moved.Joined belts for conveying drivesEndless joined timing belts without length limitation are available. The minimum length for various belt profiles, however, is to be taken into consideration.For special requirements in transportation timing belts are coated or manufactured with flights/profiles.BRECO ®TIMING BELTSBRECO M:Open length BRECO V:Joined beltsBRECOFLEX: The BRECOFLEX ®TIMING BELT is manufactured in endless lengths withouttensionmemberinterruption. The tension member is spirally coiled. BRECOFLEX ®TIMING BELTS are universal applicable for all tasks in the drive technology up to 10000 rpm.Application areasEndless timing belts for power transmissions All drives designed for a high performance should preferably be produced as BRECOFLEX ®TIMING BELTS with a full length steel cord tension member.They can be subjected to both permanent operation or for a start-brake characteristic. They operate in a rotational speed range of up to 10000 rpm.Endless timing belts are available in preferred catalog lengths. Our production range also permits the supply of intermediate lengths up to a maximum endless length of 20000 mm.BRECOFLEX ®TIMING BELTSEndless timing beltswith a full length tension memberTIMING BE LTSMaterialsBRECO ®-and BRECOFLEX ®-TIMING BELTS aremanufactured according to standard in the material with the designation TPU-ST1 and steel cord tension members. Other materials e.g. for low or hightemperature or for contact with food are possible.Likewise high flexible tension members (E) andtension members in stainless-steel are available. Your Mulco-partner advises you regarding our possibilities.19SYNCHROFLEX ®manufacturing processesSYNCHROFLEX ®TIMING BELTSSYNCHROFLEX ®TIMING BELTS consist of 2components, the wear resistant contilan, apolyurethane, and a high grade steel cord tension member. The excellent bond between the two materials results in high power transmission capacity.The manufacturing process in moulds - thedisplacement injection moulding - combines the following advantages:•The cast polyurethane timing belt is a precise image of its shape. A high pitch accuracy isreached for the whole belt. For this reason, it is particularly suitable for angular accuracy,smooth running and high rotational speeds.•Low length tolerance. The tolerance situation can be influenced by changing the coiling tension.•Due to the casting method and because of the capillary effect, good bonding with the steel cord tension members.•High image quality of the cast polyurethane. Fine contours can be moulded exactly. Especiallysuitable for small pitches. DL meshing and profile flights on the back of the belt can be moulded at the same time.•The de-moulded timing belt coil has amould-related overall useful width of up to 300 mm.•Belt lengths from 55 to 6000 mm endless lengthSYNCHROFLEX ®POLYURETHANE TIMING BELTS are used in all technical fields where synchronous transmission of a rotary movement is required.Idependent, whether power transmission, servo control functions or switching and conveying tasks are required.They operate in a rotational speed range of up to 20000 rpm.Preferred application fields:•Office machinery •EDP equipment •Textile machinery•Wood processing machinery •Machine tools•Printing machinery •Pumps•Compressors•Building machineryCasting mould, illustrated with a spirally coiled tension member on the mould coreReady de-moulded timing belt coil, part of it separated into individual belts20High capacity profileFurther increased performance, noise reduction andextension of the belts useful life led to the development of the A TP timing belt in 1993. At the time, the main interest was focussed on the optimum tooth form. The basicconcept of the new ATP profile provides the division of the trapezoidal tooth into two individual and load bearing teeth.Performance increase up to 60 %, running noise reduced by up to 10 db(A) and an increased longevity by:•tooth surface area increased by 70 %•uniform load/tension distribution •improved power dispersion •reduced polygon effect •small construction width •optimised tooth mesh(also available in the GEN III version)P r e f e rr e d ru n g d i re c t io n Curved teethAs a logical consequence in reducing running noise, a profile was developed which does without theconventional polygon effect. In addition to smoothrunning, the profile has, in comparison to the AT, a larger tooth face and is self-guiding in the preferred running direction.Preferred use:•special demands regarding smooth running propertiesand transmission precision •tight assembly dimensions•transport and transmission tasksHigh capacity profileFurther development of the T profile resulted in the AT profile. This type of belt is characterised by the larger tooth shear strength resulting from the larger tooth volume and the stronger tension members.Further advantages:•favourable tooth mesh•strengthened tension members for constant pitch •Improved performance up to 50 % as compared to the T profile•precise transmission of movement in conjunction with synchronous pulleys with reduced or zero backlash •reduction of meshing impacts or shocks •favourable mass or build space relationship (also available in the GEN III version)ATPA TBA TBA TKCurved teeth with guiding trackThe BA TK has ensued from the BAT. The timing belt is self-tracking in both running directions due to the integrated guiding track.Preferred use:•Applications in the field of the linear and powertrnasmission technology •tight assembly dimensionsTIMING BEL TS。

Flexam EX 10/2 0+12 black M2 ASArticle code 881652Product group (产品类型)合成带Market segment (应用领域)一般输送, 配送中心Main features (主要特性)防静电Belt support (皮带支撑)滑床, 平行Belt construction (输送带结构)Fabric tension layer (织物材质)聚酯稳定 2-plyTopside (表层) Flexam PVC M2 雾面黑色Bottomside (底层)布低噪音自然色Characteristics (特性)Foodgrade (FG) (食品级)否Antistatic (AS) (抗静电)是High conductive (HC) (高导电性)否Flame retardant (FR) (阻燃性)否ATEX approval (欧盟防爆认证)否Technical belt dataHardness topside (表层硬度)according to DIN 53505 (根据)80A shoreForce at 1% elongation (定伸强度) according to ISO 21181 (根据)10,0 N/mm lb./in. Belt thickness (总厚度)internal AB method KV.002 (内部标准)3,00 mm0,118 in.Weight (重量)internal AB method KV.004 (内部标准)3,50 kg/m²0,717 lbs./ft.²Coefficient of friction (摩擦系数) bottomside to steel (底部对钢板) in accordance with ISO 21182 (依据ISO21182)0,170,2DynamicStaticThickness top cover (表层厚度)1,20 mm0,047 in.Temperature range (正常工作环境温度)-15 to 80 °C 5 to 176 °FTemperature range short (短时工作环境温度)-15 to 100 °C 5 to 212 °FMin. pulley diameter flexing (最小转弯直径)50,0 mm1,969 in.Min. pulley diameter back flexing (最小反向转弯直径)80,0 mm3,150 in.Standard belt width (标准宽度)3000 mm118,11 in.Maximum belt width (最大宽度)3000 mm118,11 in.Endless instructions (接驳建议)热接驳总是最佳的接驳方式。

CEMA 皮带机功率计算方法的进展马章军(华北电力设计院有限公司，北京 100120)摘要：美国输送设备制造商协会(CEMA)编著的《散装物料带式输送机》第七版中提供了三种皮带机功率计算方法：经典计算方法、小样本方法和大样本压陷测试方法。

本文介绍了三种方法的发展过程及其概况，重点讲述了如何使用大样本压陷试验数据法进行皮带机设计，探讨了大样本方法的有效性。

关键词：CEMA ；皮带机；功率计算方法；大样本压陷测试。

中图分类号：TM621 文献标志码：C 文章编号：1671-9913(2018)S1-0157-04Development of CEMA ConveyorPower Calculation MethodsMA Zhang-jun(North China Power Engineering Co., Ltd., Beijing 100120, China)Abstract: The 7th edition of Belt Conveyors for Bulk Materials published by CEMA offers three different power prediction methods: the “CEMA Classic Method ”, the “Small Sample Method ” and the “Large Sample Method ”. This paper provides background and insight into how “Large Sample Indentation Test ” data is used to design conveyors, and describes the relation between this and the older conveyor power prediction methods. It also discusses the effectiveness of the “Large Sample Method ” by using it to predict indentation losses.Key words: CEMA; belt conveyor; power prediction method; large sample method.* 收稿日期：2018-04-11作者简介：马章军(1981-)，男，河北保定人，硕士，高级工程师，从事电厂输煤设计工作。