文档介绍:哈尔滨工业大学工学硕士学位论文
摘要
自调式离合器(Self-Adjusting Clutch, SAC)是一种结构新颖的离合器,它在使用
过程中能自行调节补偿由于摩擦片的磨损而引起的工作压紧力的变化,使其保持
恒定不变,从而使离合器转矩容量保持稳定。另外由于自调式离合器采用了非线
性传动片,可使最大分离力减小,从而使离合器操纵轻便。
论文依托于某实际工程项目,确定自调式膜片弹簧离合器的开发目标,以国
内某车型的技术参数为例来进行结构设计。在设计过程中通过对传统膜片弹簧离
合器以及国外自调式膜片弹簧离合器的深入研究基础上,选取合理的技术方案,
采用传统方法设计自调式膜片弹簧离合器,并采用传统方法进行校核。
基于自调式膜片弹簧离合器的特点及其自调原理,创新的将优化设计方法引
入了自调式膜片弹簧离合器的设计当中。广泛参考传统膜片弹簧离合器和各种典
型碟簧的优化设计方法,分别就基本参数、膜片弹簧和力感应弹簧三部分进行了
优化设计。通过计算校核和有限元分析,证明该优化设计得出的参数方案比传统
设计得出的参数方案更加合理。
建立三维实体参数化模型,在建模过程中,离合器的造型设计应用了反求工
程技术。对自调式膜片弹簧离合器模型进行三维装配和运动分析,检验机构的运
动性能。通过对关键零件进行有限元分析,检验优化结果的力学性能是否满足工
程需要。
关键词:自调式膜片弹簧离合器;优化设计;力感应弹簧
哈尔滨工业大学工学硕士学位论文
Abstract
As a new kind of clutch with novel structure, self-adjusting clutch (SAC) , which
can be used to adjust itself pensate for the change of pressed force caused by
friction disk abrasion, keeps the clutch torque capacity stable so that retains work force
with a essive running condition. Supported by non-linear link strip connection,
SAC also reduces the maximum separation strength resulting in more convenient
operation.
Based on an actual automobile engineering project, this paper is goaled to develop
such a self-adjusting clutch on the basis of standard technical parameters of a domestic
automobile. According to the best understanding of clutch working mechanism,
comparisons between conventional diaphragm spring clutch and advanced
self-adjusting clutch have been carried out to develop a better technology solution. As a
result, we adopt the traditionary method used in self-adjusting clutch optimization and
control experiment.
Because of the remarkable characteristics and self-adjusting principle of SAC, an
innovative optimal design method has been used in this paper to improve the SAC
function. After consulting a considerable number of method related to the conventional
diaphragm spring clutch and various typical disc spring, we optimized the SAC so far as
primary parameters, diaphragm