离合器设计说明书

工学院

课程设计

离合器设计

（设计题目）

1310111006俊男

（学生）

专业名称：车辆工程

课程名称：汽车设计

指导教师 (职称)：飞豹（副教授）

完成日期： 2014 年6月25日

2014年6月

摘要

离合器是汽车传动系中直接与发动机相连接的总成，其主要功用是切断和实现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；在换挡时将发动机与传动系分离，减少变速器中换挡齿轮之间的冲击；在工作中受到大的动载荷时，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。

本文通过对轿车整车参数的分析，并在拆装轿车膜片弹簧离合器及对其进行结构分析的基础上，对轿车离合器进行重新设计，使得轿车离合器设计更合理。首先对轿车离合器的结构型式进行合理选择，主要是对从动盘数及干湿式的选择、压紧弹簧的结构型式及布置和从动盘的结构型式选择，并利用CAXA电子图板软件绘制轿车膜片弹簧离合器装配图；再进行离合器的基本结构尺寸和参数的选择及计算；最后进行离合器零件的结构选型及设计计算，主要是对从动盘总成设计，压盘、传力片的设计校核，膜片弹簧主要参数的选择、设计和强度校核，并绘制离合器零件图。

关键词：轿车离合器膜片弹簧设计校核

Abstract

Clutch is the assembly which is directly connected with engine in the automobile power train. And its main function is to cut off or implement the power transmission in the power train. It ensured the engine and the power train perfectly smooth join together when the automobile starting up and insure the automobile smooth starting up. The clutch is disconnected the engine and the power train when the automobile stage changeover. It reduced the impact between the shift gears of the transmission. When the transmission worked by the great dynamic load, the clutch can limit the breakdown torque of the power train, to prevent the accessory of the power train damage due to overload. It effectively reduced the vibration and noise of the power train.

In this paper, based on the analysis of the car parameters, on the basis of dismantle and install diaphragm spring clutch of sedans and its structural analysis to redesign the sedan clutch for it makes the design of the car clutch more reasonable. First, we should be choose the structure of the car clutch reasonable. It is mainly choose the structure of the driven disk that wet or dry, the structure of pinched spring and the layout. And I make use of CAXA electronic drawing board software draw the assembly drawing of the cars Diaphragm spring clutch. Than I make sure the choice and design calculation of the clutch structure size and the basic parameters. Finally, I carry on the structure type slection of clutch parts and the design calculation. It is mainly design and checking the driven disk assembly, platen and patch of force. And I make sure diaphragm spring main parameters of the selection, design, strength check and draw the clutch detail drawing.

Keywords：Car clutch; Diaphragm spring; Design; Checking

目录

第一章离合器方案的确定 (4)

1.1 车型分析 (4)

1.2 方案选择 (4)

第二章离合器基本参数的确定 (5)

2.1 后备系数 (6)

2.2 单位压力 (6)

2.3 摩擦片外径、径和厚度 (7)

2.4 摩擦因数、摩擦面数和离合器间隙 (8)

第三章离合器零件的结构选型及设计计算 (9)

3.1 从动盘总成设计 (9)

3.1.1 从动盘总成的结构型式的选择 (9)

3.1.2 从动片结构型式的选择 (10)

3.2 离合器盖总成设计 (10)

3.2.1 离合器盖设计 (10)

3.2.2 压盘设计 (10)

3.3膜片弹簧的设计 (11)

3.3.1 膜片弹簧基本参数的选择 (11)

3.3.2 膜片弹簧材料及制造工艺 (13)

3.4 扭转减振器 (14)

3.4.1 扭转减振器的功用 (14)

3.4.2 扭转减振器组成 (14)

3.4.3 减振器的结构设计 (15)

3.4.4从动盘毂的设计校核 (17)

参考文献 (18)

致 (19)