Influence of Flexspline Tooth Profile Parameter of Double Circular Arc Harmonic Gear Drive on Backlash

He Xiaofei; Yang Yong; Huang Yanyan; Zhou Bo; Xiao Jichang; Zhou Qinghua; Xiong Lindong

doi:10.16578/j.issn.1004.2539.2018.09.003

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Influence of Flexspline Tooth Profile Parameter of Double Circular Arc Harmonic Gear Drive on Backlash

更新时间：2022-10-20

- Influence of Flexspline Tooth Profile Parameter of Double Circular Arc Harmonic Gear Drive on Backlash
- Vol. 42, Issue 9, Pages: 13-18(2018)
- 作者机构：
  
  1. 四川大学空天科学与工程学院
  2. 中航工业江西洪都航空工业集团有限责任公司综合采购部
- 作者简介：
- 基金信息：
- DOI：10.16578/j.issn.1004.2539.2018.09.003
  CLC：
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[1]贺小飞,杨勇,黄彦彦,周博,肖季常,周青华,熊林冬.双圆弧谐波齿轮传动柔轮齿廓参数对侧隙的影响[J].机械传动,2018,42(09):13-18+153.

He Xiaofei, Yang Yong, Huang Yanyan, et al. Influence of Flexspline Tooth Profile Parameter of Double Circular Arc Harmonic Gear Drive on Backlash. [J]. 42(9):13-18(2018)
[1]贺小飞,杨勇,黄彦彦,周博,肖季常,周青华,熊林冬.双圆弧谐波齿轮传动柔轮齿廓参数对侧隙的影响[J].机械传动,2018,42(09):13-18+153. DOI： 10.16578/j.issn.1004.2539.2018.09.003.

He Xiaofei, Yang Yong, Huang Yanyan, et al. Influence of Flexspline Tooth Profile Parameter of Double Circular Arc Harmonic Gear Drive on Backlash. [J]. 42(9):13-18(2018) DOI： 10.16578/j.issn.1004.2539.2018.09.003.

摘要

在谐波齿轮传动中,空载啮合侧隙对其传动性能有显著影响。基于谐波传动共轭精确求解方法,研究了谐波齿轮传动共轭区间、刚轮理论共轭齿廓和侧隙随柔轮齿廓参数的变化规律。研究结果表明,柔轮齿廓参数对啮合共轭区间、刚轮理论共轭齿廓和侧隙具有决定性作用。减少凸齿廓圆弧半径有利于增加啮合共轭区间,但不利于减小侧隙;凹齿廓圆弧半径对共轭区间影响不明显,对侧隙影响较大;减小公切线倾角有利于增加共轭区间,也有利于减小侧隙值和改善侧隙分布;凸齿廓、凹齿廓圆弧半径对刚轮齿廓参数影响明显,公切线倾角对刚轮齿廓参数几乎无影响。合理选择柔轮齿廓参数能够获得更大的共轭区和更均匀的侧隙分布,从而提高承载能力和传动性能。

Abstract

In harmonic gear drive,backlash has a significant effect on transmission performance. Based on the exact conjugate method of harmonic drive,the changes of conjugate zone,circular spline conjugate tooth profile and backlash of harmonic drive with the variation of flexspline tooth profile parameters are studied. The results show that flexspline profile parameters play a decisive role in conjugate section,circular spline conjugate tooth profile and backlash. Reducing the circular arc radius of convex tooth profile is helpful to increase the meshing conjugate zone,but not conducive to reducing the backlash. The circular arc radius of concave tooth profile has no obvious effect on the conjugate zone,but has a significant effect on the backlash. Reducing the common tangent angle is helps to increase the conjugate zone,reduce the backlash and improve the backlash distribution. The circular arc radius of convex and concave tooth profile of flexspline have obvious influence on the circular spline tooth profile parameters,but the common tangent angle have little effect on it. A reasonable choice of flexspline tooth profile parameters may bring a bigger conjugate zone and more well-distributed backlash,the carrying capacity and transmission performance can then be improved.

关键词

谐波传动双圆弧齿廓齿廓参数共轭齿廓侧隙

Keywords

Harmonic driveDouble circular arc tooth profileTooth profile parameterConjugate tooth profileBacklash

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