沈阳理工大学应用技术学院课程设计汽车离合器设计陈友娜专业名称：车辆工程课程名称：汽车设计指导教师(职称)：完成日期：2012年 8月6日2012 年 8 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。
本文通过对整车参数的分析，并在拆装车轻型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。
首先对货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。
本文所做的主要工作如下：[1] 简要介绍了离合器的工作原理及主要功能。
[2] 具体计算离合器基本参数。
[3] 主动部分的设计，包括：压紧弹簧、离合器盖、分离装置。
[4] 从动部分的设计，包括：从动盘、摩擦材料。
[5] 操纵机构的组成与分类。
关键词：离合器；摩擦片；膜片弹簧AbstractClutch 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.The subjeets what this text did as following:[1] This text first,to the Clutch’s principle,mainly function made a synopsie introduction.[2] Compute the Clutch basic parameter.[3] The design of initiative part include:springs,cover,disengagemene mechanism.[4] The design of passive part include:clutch disc,rub material.[5] The Operate Organ’s form and classify.Key words: Clutch;clutch disc;Thrust Spring目录摘要----------------------------------------------------------------1 Abstract------------------------------------------------------------2目录----------------------------------------------------------------3第1章汽车离合器分析----------------------------------------------51.1 离合器的基本组成和分类--------------------------------------5 第2章确定离合器的结构形式----------------------------------------62.1 压紧弹簧布置形式的选择--------------------------------------62.2 压盘的驱动方式----------------------------------------------72.3 分离杠杆、分离轴承------------------------------------------7 第3章摩擦离合器基本结构尺寸、参数的选择--------------------------8 3．1 摩擦片外径及其它尺寸的确定---------------------------------83.2 校核离合器所选尺寸-----------------------------------------83.2.1 汽车离合器容量参数-------------------------------------83.2.2 确定压紧力F -------------------------------------------83.2.3 检验单位压力P -----------------------------------------93.2.4 许用单位面积滑磨转矩T͚--------------------------------9第4章离合器零件的结构选型及设计计算------------------------------94.1 从动盘总成-------------------------------------------------94.1.1 从动片-------------------------------------------------94.1.2 从动盘毂----------------------------------------------104．2 压盘和离合器盖--------------------------------------------114.2.1 压盘设计----------------------------------------------114.2.2 离合器盖的设计----------------------------------------13 第5章膜片弹簧的设计与计算---------------------------------------155.1 膜片弹簧的结构特点-----------------------------------------155.2 膜片弹簧的变形特性和加载方式-------------------------------165.3 膜片弹簧的弹性变形特性-------------------------------------165.4 膜片弹簧的参数尺寸确定-------------------------------------18 5.4.1 H/h 比值的选取 --------------------------------------- 18 5.4.2 R 及R/r 确定 ------------------------------------------18 5.4.3 膜片弹簧起始圆锥底角α--------------------------------19 5.4.4 膜片弹簧小端半径r f 及分离轴承的作用半径r p ------------19 5.4.5 分离指数目n 、切槽宽1δ、窗孔槽宽2δ、及半径r e --------- 19 5.4.6 校核--------------------------------------------------19 第6章 结 论 ----------------------------------------------------20 第7章 致谢 ------------------------------------------------------21 第8章 参考文献---------------------------------------------------22 附件3张 (离合器装配图,从动盘总成，膜片弹簧)第1章汽车离合器分析1．1 离合器的基本组成和分类离合器位于发动机和变速箱之间的飞轮壳内，用螺钉将离合器总成固定在飞轮的后平面上，它的输出轴就是变速箱的输入轴。