基于圆柱凸轮的同轴变速传动机构

刘波; 贾继强; 丁亚林; 苏东风; 张雷

doi:10.3788/OPE.20122008.1765

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基于圆柱凸轮的同轴变速传动机构

微纳技术与精密机械 | 更新时间：2020-08-12

- 基于圆柱凸轮的同轴变速传动机构
- Coaxial transmission mechanism based on cylindrical cams
- 光学精密工程 2012年20卷第8期页码：1765-1771
- 作者机构：
  
  1. 中国科学院研究生院北京,100039
  2. 中国科学院长春光学精密机械与物理研究所航空光学成像与测量重点实验室,吉林长春,130033
- 作者简介：
- 基金信息：
  
  国家863高技术研究发展计划资助项目(No.2007AA701203)()
- DOI：10.3788/OPE.20122008.1765
  中图分类号： TH112.2
- 收稿日期：2012-04-18，
  
  修回日期：2012-06-08，
  
  纸质出版日期：2012-08-10
- 稿件说明：
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刘波, 贾继强, 丁亚林, 苏东风, 张雷. 基于圆柱凸轮的同轴变速传动机构[J]. 光学精密工程, 2012,(8): 1765-1771

LIU Bo, JIA Ji-qiang, DING Ya-lin, SU Dong-feng, ZHANG Lei. Coaxial transmission mechanism based on cylindrical cams[J]. Editorial Office of Optics and Precision Engineering, 2012,(8): 1765-1771
刘波, 贾继强, 丁亚林, 苏东风, 张雷. 基于圆柱凸轮的同轴变速传动机构[J]. 光学精密工程, 2012,(8): 1765-1771 DOI： 10.3788/OPE.20122008.1765.

LIU Bo, JIA Ji-qiang, DING Ya-lin, SU Dong-feng, ZHANG Lei. Coaxial transmission mechanism based on cylindrical cams[J]. Editorial Office of Optics and Precision Engineering, 2012,(8): 1765-1771 DOI： 10.3788/OPE.20122008.1765.

摘要

针对常规传动方式在径向空间较小情况下难以实现同轴旋转运动的变速功能

提出了一种基于圆柱凸轮的同轴变速传动机构。以变焦距镜头的结构为基础

结合使用两个圆柱凸轮

在主、从动凸轮上开出螺旋线槽

使从动凸轮螺旋线槽导程为主动凸轮螺旋线槽导程的

倍

从而实现速比为

的变速传动。对机构的传动效率和传动精度进行分析

得出主动凸轮螺旋线槽的螺旋升角与传动效率和传动精度的关系及相关规律。在实验室对机构的传动精度进行了测试

结果表明其速比精度在1.6%以内。此机构结构紧凑

能够自锁且精度较高。

Abstract

As conventional transmission mechanism is difficult to realize coaxial rotation transmission in a narrow radial space

a coaxial transmission mechanism based on cylindrical cams is proposed.On the basis of the structure of a lens

the transmission mechanism is combined by two cylindrical cams

and one is initiative cam and the other is passive cam. Spiral slots are opened on the surface of both cams. When the spiral lead of the passive cam is

times that of initiative cam

the transmission mechanism can offer a transmission ratio of

. Transmission efficiency and transmission accuracy are analyzed and the relation between the angle of initiative cam’s spiral slot and the transmission efficiency and transmission accuracy is discussed. An experiment is performed to test transmission accuracy

which shows the transmission ratio accuracy is less than 1.6%. Obtained mechanism has compact structure

high accuracy and can be locked automatically.

关键词

Keywords

references

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