中国机械工程 ›› 2013, Vol. 24 ›› Issue (13): 1760-1764.

• 机械基础工程 • 上一篇    下一篇

新型机械式无级变速器的设计及优化

曾文;王玉兴;夏红梅;卿艳梅   

  1. 华南农业大学,广州,510642
  • 出版日期:2013-07-10 发布日期:2013-07-11
  • 基金资助:
    国家自然科学基金资助项目(51005080);科技部国家星火计划引导项目(2011GA780027)
    National Natural Science Foundation of China(No. 51005080)

Design and Optimum of Novel Mechanical CVT

Zeng Wen;Wang Yuxing;Xia Hongmei;Qing Yanmei   

  1. South China Agricultural University,Guangzhou,510642
  • Online:2013-07-10 Published:2013-07-11
  • Supported by:
    National Natural Science Foundation of China(No. 51005080)

摘要:

基于传动原理与变速原理,利用双曲柄机构的特性,结合棘轮机构传动的特点,提出一种新型机械式无级变速装置。运用解析几何及机构综合的方法,对该无级变速器的运动学规律进行研究,推导了传动比与机构参数的函数关系。为获得最优的机构设计参数,以实现无级变速器的传动比最大为优化目标,以双曲柄机构的形成条件、机构尺寸限制、传动角限制等为约束条件,编写优化设计程序并获得各个构件的优化长度。

关键词: 无级变速器, 双曲柄机构, 棘轮机构, 优化设计

Abstract:

Based on the principle of variable speed transmission and characteristics of double crank mechanism and ratchet wheel mechanism, we came up with a new type of continuous non-frictional mechanical CVT. The kinematic law was studied through methods of analytic geometry and mechanism synthesis, and the function of transmission ratio and mechanism parameters were established. Maximal transmission ratio was the objective of the mechanism; to reach this target means to obtain optimum parameters, the structural size, double crank's formation and limit of transmission angle were as constraints. A computer program was worked out successfully to determine these optimum parameters.

Key words: continuously variable transmission(CVT), double crank mechanism, ratchet wheel mechanism, optimum design

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