【作者】 马岳；

【导师】 崔胜民；

【作者基本信息】 哈尔滨工业大学 ， 车辆工程， 2009， 硕士

【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。更多还原

【Abstract】 As a new kind of clutch with novel structure, self-adjusting clutch (SAC) , which can be used to adjust itself to compensate for the change of pressed force caused by friction disk abrasion, keeps the clutch torque capacity stable so that retains work force with a successive 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 spring and sensor DS be concerned. According to finite element analysis, calculation and modification, the results show that our optimized parameter setup works better than those traditionary ones without optimizing.Furthermore, a three- dimensional solid model has been built. In order to execute assemblage and dynamical analysis of SAC model structure, we applied a so-called reverse engineering technology of clutch design in modeling process to test its dynamical function. We also used the finite element analysis method on those key components to make sure that the optimized dynamical system would suffice for working condition.更多还原