摘要
 
本设计主要进行汽车膜片弹簧离合器的结构设计。首先，分析汽车膜片弹簧离合器发展现状以及膜片弹簧离合器的系统组成和工作原理。然后，对膜片弹簧离合器部分的结构和工作原理进行详细论述，并针对某车型查阅相关国家标准而初选推式膜片弹簧离合器的基本结构尺寸参数。之后，根据推式膜片弹簧离合器的性能要求，确定各主要部件的结构，并对具体尺寸参数进行设计计算、校核、修正。最后，利用Auto-CAD绘制推式膜片弹簧离合器的主要零部件的零件图及系统装配图。
 
 
关键词：推式；膜片弹簧；离合器；设计

Abstract
 
The main design of a vehicle diaphragm spring clutch design of the structure. First, the diaphragm spring clutch of motor vehicles and development of the diaphragm spring clutch system components and principle. Then, the diaphragm spring clutch part of the structure and working principle of a detailed exposition, and a model for access to the relevant national standards and diaphragm spring primaries push-type clutch size of the basic structure of parameters. , Under the push-type diaphragm spring clutch performance requirements, and identify the major components of the structure, size and specific design parameters, check and correct. Finally, the use of Auto-CAD drawing push-type diaphragm spring clutch parts of the main components of the plan and the system assembly.
 
Key words: Push-type; diaphragm spring; clutch; design
 

目  录

 

摘要.........................................................................................................................Ⅰ

Abstract....................................................................................................................Ⅱ

第1章  绪论.........................................................................................................1

     1.1  引言..........................................................................................................1
     1.2  离合器研究现状......................................................................................3
        1.2.1 国外研究现状...................................................................................3
        1.2.2 国内研究现状...................................................................................4

     1.3 本设计的目的和意义................................................................................5

     1.4 本设计的主要内容....................................................................................5

第2章 膜片弹簧离合器基本参数的选择..............................................5

     2.1 离合器的原理及应满足的要求................................................................5
     2.2 压紧弹簧的结构型式及............................................................................6
        2.2.1 周置弹簧离合器...............................................................................6
        2.2.2 中央弹簧离合器...............................................................................7
        2.2.3 斜置弹簧离合器...............................................................................7
         2.2.4 膜片弹簧离合器...............................................................................7
     2.3  基本结构尺寸参数的选择......................................................................8
        2.3.1 摩擦片的设计...................................................................................8
       2.3.2 后备系数β的确定...........................................................................8
        2.3.3单位压力P₀的确定...........................................................................9
        2.3.4摩擦因子f选择.................................................................................9
     2.4 摩擦片的优化............................................................................................9

     2.5 本章小结..........................................................................................10

第3章  从动盘总成设计................................................................................11
     3.1 从动盘的组成型式及要求........................................................................11
     3.2 从动片设计................................................................................................11
     3.3 从动盘毂的设计.......................................................................................11
     3.4 花键强度校核...........................................................................................12
     3.5 从动盘摩擦材料选择...............................................................................12

     3.6 扭转减震器的设计...................................................................................13

         3.6.1 扭转减震器的功能........................................................................13

         3.6.2 扭转减震器主要参数的选择 .......................................................13

         3.6.3 减震弹簧的计算............................................................................15

     3.7 本章小结...................................................................................................16

第4章  膜片弹簧、压盘和离合器盖的设计...........................................17
     4.1 膜片弹簧基本参数的选择.......................................................................17
        4.1.1 H/h 比值的选择...............................................................................17
        4.1.2  碟簧部分大端半径R、内半径r及R/r 的比值确定.................17
        4.1.3  弹簧起始圆锥底角的选择........................................................17
        4.1.4 膜片弹簧小端半径r₀ 及分离轴承作用半径r_f选择 ...................17
        4.1.5 分离指数目n 切槽宽度窗口槽宽及半径re选择.................17
         4.1.6压盘加载点R₁和支撑环加载点半径r₁选取..................................18
     4.2 膜片弹簧的设计........................................................................................18
        4.2.1绘制特性曲线.......................................................................18
     4.3膜片弹簧工作点位置的选择.....................................................................20
     4.4 求离合器彻底分离时分离轴承作用的载荷F₂.的计算..................................21
     4.5 分离轴承的行程的计算........................................................................21
     4.6 膜片弹簧的强度校核.................................................................................22
     4.7 膜片弹簧的优化.........................................................................................23
     4.8 压盘传动方案的选择.................................................................................24

     4.9 压盘的材料选择.........................................................................................24

     4.10 压盘几何尺寸的确定...............................................................................24
     4.11 离合器盖的设计.......................................................................................25
     4.12 本章小结...................................................................................................26
第5章 离合器操纵机构的设计.......................................................................27
     5.1 离合器操纵机构的要求.............................................................................27
     5.2 操纵机构的设计.........................................................................................27
        5.2.1 操纵机构的组成及优点....................................................................27
        5.2.2 踏板行程S的计算............................................................................27
     5.3 踏板力的计算........................................................................................28
     5.4 助力器缸直径计算.....................................................................................28

     5.5 分离轴承的选择和校核.............................................................................29

     5.6 本章小结.....................................................................................................29
结论...........................................................................................................................30
参考文献..................................................................................................................31

致谢.............................................................................................................................32

 
 

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