离合器毕业设计说明书内容
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黑龙江工程学院本科生毕业设计
1
目 录
摘要 ………………………………………………………………………………………Ⅰ
Abstract ………………………………………………………………………………… Ⅱ
第1章 绪论 ……………………………………………………………………………1
1.1 选题的目的……………………………………………………………………… 1
1.2 离合器发展历史 …………………………………………………………………1
1.3 离合器概述 ………………………………………………………………………1
1.3.1 离合器的功用 ………………………………………………………………2
1.3.2 现代汽车离合器应满足的要求…………………………………………… 3
1.3.3 离合器的工作原理………………………………………………………… 3
1.3.4 拉式膜片弹簧离合器的优点……………………………………………… 4
1.4 设计的预期成果………………………………………………………………… 4
第2章 离合器设计 ……………………………………………………………………5
2.1 离合器结构选择与论证 …………………………………………………………5
2.1.1 摩擦片的选择……………………………………………………………… 5
2.1.2 压紧弹簧布置形式的选择 …………………………………………………5
2.1.3 压盘的驱动形式 ……………………………………………………………6
2.1.4 分离杠杆、分离轴承 ………………………………………………………6
2.1.5 离合器的散热通风 …………………………………………………………6
2.1.6 从动盘总成 …………………………………………………………………6
2.2 离合器结构设计的要点 …………………………………………………………8
2.3 离合器主要零件的选择 …………………………………………………………8
2.3.1 从动盘 ………………………………………………………………………8
2.3.2 摩擦片 ………………………………………………………………………8
2.3.3 膜片弹簧 ……………………………………………………………………9
2.3.4 压盘 …………………………………………………………………………9
2.3.5 离合器盖 ……………………………………………………………………9
2.4 本章小结 …………………………………………………………………………9 黑龙江工程学院本科生毕业设计
2 第3章 离合器的设计计算及说明 ……………………………………………… 10
3.1 离合器设计所需数据……………………………………………………………10
3.2 离合器主要参数的选择 ……………………………………………………… 10
3.3 离合器基本参数的优化 ……………………………………………………… 12
3.4 膜片弹簧主要参数的选择 …………………………………………………… 14
3.5 膜片弹簧的优化设计 ………………………………………………………… 15
3.6 膜片弹簧的载荷与变形关系 ………………………………………………… 16
3.7 膜片弹簧的应力计算 ………………………………………………………… 18
3.8 扭转减振器设计…………………………………………………………………21
3.9 减振弹簧的设计 ……………………………………………………………… 21
3.10 操纵机构 ………………………………………………………………………23
3.10.1 离合器踏板行程计算…………………………………………………… 24
3.10.2 踏板力的计算…………………………………………………………… 25
3.11 从动轴的计算 …………………………………………………………………26
3.12 从动盘毂 ………………………………………………………………………26
3.13 轴承的寿命的计算 ……………………………………………………………27
3.14 本章小结 ………………………………………………………………………28
结论 ………………………………………………………………………………………29
参考文献…………………………………………………………………………………30
致谢 ………………………………………………………………………………………31
黑龙江工程学院本科生毕业设计
3 摘 要
离合器是汽车传动系中直接与发动机相连接的总成,其功用是切断和实现对传动系的动力传递,以保证汽车起步时将发动机与传动系平顺地接合,确保汽车平稳起步;在换档时将发动机与传动系分离,减少变速器中换档齿轮之间的冲击;在工作中受到最大的动载荷时,能限制传动系所承受的最大转矩,防止传动系各零件因过载而损坏;有效地降低传动系中的振动和噪声。在现代汽车设计中,膜片弹簧式离合器应用越来越广泛,本设计就是讨论膜片弹簧式离合器。采用系统化设计方法。根据离合器的功能和结构,把离合器分为主动部分、从动部分、分离机构、操纵机构。根据实际运用的要求,设计中给出了离合器功能和工作原理的详细介绍,解释了设计目的、膜片弹簧优点及离合器从动盘简介。详细演算离合器主要参数的计算过程:摩擦片、压盘间间隙计算、膜片弹簧与分离轴承间隙计算及机构的确定说明并对压盘进行温升校核和对分离轴承进行寿命计算。
关键词:离合器;操纵机构;膜片弹簧;发展;设计
ABSTRACT 黑龙江工程学院本科生毕业设计
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The clutch is the assembly which connect with each other at first hand between engine
and transmission. Its effect is a cutting and realization to the power deliver of transmission,
connecting together engine and transmissions are going smoothly while the car is going to
start, insure the steady start of vehicle; While shifting gear , separates the clutch and
gearbox, reduce to shift gear the impact between gear in the gearbox; While being dynamic
load by the maximum in the operate, can limit the breakdown torque, pullout torque that
the transmission department bear, keep each parts of transmission from damage because of
the overload; Reduce vibrate and noise within the transmission availably. Diaphragm clutch
is used widely in modern vehicle. The adoption systematizes a design method is divided into
the clutch actively part of according to the function and structure of the clutch, from move
part, separate organization and manipulate organization The design is the discussion of the
diaphragm clutch. According to the request of the actual usage, design medium give
function of clutch and work the detailed introduction of the principle, explained the design
purpose, diaphragm spring advantage and the clutch driven pan and the cover flake
revolution rupture strength test, testing technique brief introduction. The detail calculation
clutch process of calculation of the main parameter: the friction plate, the pressure plate a
clearance calculate, diaphragm spring and separate the bearing clearance the calculation,
mechanism really explains to combine to carry on the pit in the temperature rise school to
the pressure plate certainly and count the life of bearing separated.
Key words: Clutch; Operating Members; Diaphragm Spring; Develop; Design
第1章 绪 论
1.1选题的目的