【作者】 伍驭美；

【导师】 秦伟；

【作者基本信息】 重庆大学 ， 机械设计与理论， 2002， 硕士

【摘要】 目前广泛使用的机械式无级变速器，由于其结构原理存在的固有缺陷，严重影响了其功率范围的进一步扩大。只有通过改变结构，从原理上使能量流的传递方式发生改变，才能从根本上克服原有无级变速器的不足。本文分析了机械传动装置中能量流的传递方式及作用原理，在前人已有研究成果的基础上，对一种新型连续作用机械无级变速器进行了较为详细的研究。这种新型机械无级变速器是基于啮合传动的，其能量流的传递具有连续性。在一定程度上克服了原有机械式无级变速器存在的问题，具有广阔的发展前景。本文针对输入功率为1.5KW，最大输出转速，额定输出转速的无级变速器的设计要求，并考虑到传动角及变速比等因素，在运动学仿真的基础上，对运动学参数进行了优化；本文对变换器连续作用的初始装配条件进行了理论分析与研究，对输入、输出变换器作了结构尺寸的设计，并进行了强度校核计算；本文还对变速器调速系统中主要传动构件在满足操作的灵敏度、精度、自锁性的基础上进行了结构设计；最后采用Working Model 3D软件，进行虚拟样机的计算机辅助仿真设计及运动学和动力学计算。仿真结果表明，设计已达到了运动学设计要求，动力学性能得到了提高，达到了预期的目标。本论文研究内容是重庆市科委科技攻关项目“新型非摩擦式连续作用机械无级变速器的研制与开发”工作的一个重要部分，它将为新型非摩擦式连续作用机械无级变速器产品的开发打下良好的基础。更多还原

【Abstract】 At present, application of impulse variable speed regulators is popularized in more and more domains, because of its inherent disadvantages in Frame Principles, it is very difficult to optimize parameters in further. However, there is one kind of possible approach, in which mode of energy stream’s transmission is changeable through changing structure.In this paper, author, on the basis of former performance, studied in detail through the analysis of energy stream’s transmission mode and function principle in the mechanical transmission device. A kind of original sequential operation’s impulse variable speed regulator, which is based on mesh transmission, and its energy stream’s transmission has some advantage such as continuity. Thus, some research, such as overcoming the puzzle existed in primary impulse variable speed regulator, should have good prospect. Aimed at design index of input power 1.5KW, most output rotate velocity 300rpm, and rating output rotate velocity 150rpm, considering factors of angle and ratio of transmission, on the basis of kinematics simulation, author optimized the kinematics parameters.In this paper, author has made some analysis and study to the primal assembly condition of transformer’s sequential action in theory, designed structure dimension of the input and output transformer, and verified the corresponding strengthen. Further, the structure, which is to key transmission components of velocity control system of the speed regulator, has been designed based on meeting operational sensitivity, precision and self-locking. Finally, on platform of Working Model 3D software, author has carried out the virtual machinery’s computer-aided simulation design and the calculation of kinematics and dynamics. The result of simulation shows that the design has met the requirements of kinematics design, improved dynamics performance and achieved desired goal.The theme in the paper is to key parts of project of Study and Development on Original Non-frictional Continuous Action Mechanical Variable Speed Drives, which is supported by Chongqing Municipal Science and Technology Committee Schedule Projects, it will make good foundation in relative technology research domains.更多还原