离合器设计

论文编号:JX419  包括设计图,说明书字数:16166.页数:36

摘要
对于以内燃机为动力的汽车，离合器在机械传动系中是作为一个独立的总成而存在的，它是汽车传动系中直接与发动机相连的总成。目前，各种汽车广泛采用的摩擦离合器是一种依靠主从动部分之间的摩擦来传递动力且能分离的装置。它主要包括主动部分、从动部分、压紧机构、和操纵机构等四部分。
    离合器的功用主要的功用是切断和实现发动机对传动系的动力传递，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；在工作中受到较大的动载荷时，能限制传动系所承受的最大转矩，以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。
    本次设计包括离合器各零件的结构,离合器主要参数的选择与优化,膜片弹簧的计算与优化,扭转减振器的设计,离合器操纵机构的设计计算和相关设计图纸,最后撰写了说明书。对离合器设计具有一定的研究价值。

关键词:离合器,推式膜片弹簧,结构设计

Abstract
Regarding take the internal combustion engine as the power automobile, the coupling is takes an independent unit in the mechanical power transmission to exist, it is in the automobile power transmission direct and the engine connected unit. At present, each kind of automobile widely uses the friction clutch is one kind depends upon between the main secondary part the friction to transmit the power, and can separate installment. It mainly includes the driving part, the secondary part, the compaction organization, and the control mechanism and so on four parts. Coupling's function main function is shuts off and realizes the engine to the power transmission power transmission, guarantees the automobile starts when the engine and the power transmission joins smoothly, guaranteed that the automobile starts steadily; When shifting gears separates the engine and the power transmission, reduces in the transmission gearbox between change gear's impact; Receives when the work big moves the load, can limit the biggest torque which the power transmission withstands, prevents power transmission various components because to overload damages; Reduces in the power transmission effectively the vibration and the noise. This design including the coupling various components' structure, the coupling main parameter's choice and the optimization, disk spring's computation and the optimization, the reverse shock absorber's design, the coupling control mechanism's design calculation and is related the design paper, finally has composed the instruction booklet. Has certain research value to the coupling design.
key word: The coupling, pushes the type disk spring, the structural design

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 离合器的结构设计 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  压盘的驱动方式 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  离合器主要零件的设计 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
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  摩擦片主要参数的选择 10
3.3   摩擦片基本参数的优化 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 分离轴承的寿命计算 27
3.14  本章小结 28
结　　论 29
参考文献 30
致    谢 31