• CN:11-2187/TH
  • ISSN:0577-6686

机械工程学报 ›› 2018, Vol. 54 ›› Issue (23): 23-31.doi: 10.3901/JME.2018.23.023

• 机构学及机器人 • 上一篇    下一篇

摆动输出活齿凸轮机构传动及齿廓方程

李剑锋, 赵宏伟, 张雷雨, 于洋   

  1. 北京工业大学机械工程与应用电子技术学院 北京 100124
  • 收稿日期:2017-12-10 修回日期:2018-05-26 出版日期:2018-12-05 发布日期:2018-12-05
  • 通讯作者: 李剑锋(通信作者),男,1964年出生,教授,博士研究生导师。主要研究方向为活齿传动技术及机器人机构学。E-mail:lijianfeng@bjut.edu.cn
  • 作者简介:赵宏伟,男,1991年出生,硕士研究生。主要研究方向为活齿传动技术。E-mail:1490844859@qq.com;张雷雨,男,1988年出生,博士,讲师。主要研究方向为机械传动与康复机器人技术。E-mail:zhangleiyu1988@126.com
  • 基金资助:
    国家高技术研究发展计划资助项目(863计划,2011AA04A101)。

Transmission and Tooth Profile Equation of Swing Output Movable Teeth Cam Mechanism

LI Jianfeng, ZHAO Hongwei, ZHANG Leiyu, YU Yang   

  1. College of Mechanical and Electrical Engineering, Beijing University of Technology, Beijing 100124
  • Received:2017-12-10 Revised:2018-05-26 Online:2018-12-05 Published:2018-12-05

摘要: 融合活齿传动和凸轮机构两种传动形式的优点,提出了摆动输出活齿凸轮机构,并分析了其结构及传动原理。作为一种新颖的传动形式,该机构具有齿数灵活、全齿啮合、摆角范围宽,可按简谐曲线、等加速度曲线以及无停留修正梯形曲线等多种既定规律摆动输出的特点。借助凸轮曲线位移的已知性建立了输入、输出凸轮转角在任意时刻的对应关系以解决传动比不恒定而无法直接创建传动关系的问题,进而推导出了输入、输出凸轮的理论齿形方程和工作齿廓方程。在理论分析的基础上,给定设计参数并绘制输入、输出凸轮的理论齿形与工作齿廓啮合线以及机构啮合位形,皆未发生干涉现象,验证了方程推导的正确性,为以后进一步的研究及应用提供了分析基础。

关键词: 摆动输出, 变速比, 齿廓方程, 啮合位形, 全齿啮合, 凸轮曲线

Abstract: By combining advantages of movable teeth transmission and cam mechanism, a swing output movable teeth cam mechanism is proposed, besides, whose structure and transmission principle are analyzed. As a new type of transmission, the mechanism has the advantages of flexible teeth number, full teeth mesh, wide range of swing angular and a variety of swing relationship of output shaft such as harmonic curve, parabolic curve and no-dwell modified trapezoid curve. Resorting to cam curve known, the corresponding relation of angle of input and output cam is established at any time, in order to solve the problem that because of unconstant transmission ratio, drive connection can't be built directly, thus the equations of theoretical tooth shape and working tooth profile of input and output cam are deduced respectively. On the basic of theoretical analyses, theoretical tooth shape and working tooth profile engaged line of input and output cam and meshing configuration of mechanism under the condition of parameter values given are obtained, whose no interference phenomenon verifys the correctness of equation deduction. Therefore, all of these results provide analytical basis for the further research and application in the future.

Key words: cam curve, full teeth mesh, meshing configuration, swing output, tooth profile equation, unconstant transmission ratio

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