Tooth Profile Modification and Experimental Study of Double Circular Arc Flexsplines in Harmonic Reducers

Huang Bing; Lou Junqiang; Cen Guojian; Luo Limin; Li Guoping

doi:10.16578/j.issn.1004.2539.2023.11.016

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Tooth Profile Modification and Experimental Study of Double Circular Arc Flexsplines in Harmonic Reducers

Test·Analysis | 更新时间：2023-12-01

- Tooth Profile Modification and Experimental Study of Double Circular Arc Flexsplines in Harmonic Reducers
- Journal of Mechanical Transmission Vol. 47, Issue 11, Pages: 108-116(2023)
- 作者机构：
  
  1.宁波中大力德智能传动股份有限公司，浙江宁波 315301
  2.宁波大学浙江省零件轧制与成型技术重点实验室，浙江宁波 315211
- 作者简介：
- 基金信息：
- DOI：10.16578/j.issn.1004.2539.2023.11.016
  CLC：
- Published：15 November 2023，
  
  Received：22 August 2022，
  
  Revised：24 October 2022，
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黄炳,娄军强,岑国建等.谐波减速器中双圆弧柔轮的齿形修形及试验研究[J].机械传动,2023,47(11):108-116.

Huang Bing,Lou Junqiang,Cen Guojian,et al.Tooth Profile Modification and Experimental Study of Double Circular Arc Flexsplines in Harmonic Reducers[J].Journal of Mechanical Transmission,2023,47(11):108-116.
黄炳,娄军强,岑国建等.谐波减速器中双圆弧柔轮的齿形修形及试验研究[J].机械传动,2023,47(11):108-116. DOI： 10.16578/j.issn.1004.2539.2023.11.016.

Huang Bing,Lou Junqiang,Cen Guojian,et al.Tooth Profile Modification and Experimental Study of Double Circular Arc Flexsplines in Harmonic Reducers[J].Journal of Mechanical Transmission,2023,47(11):108-116. DOI： 10.16578/j.issn.1004.2539.2023.11.016.

摘要

针对实际工况中，谐波减速器双圆弧柔轮在啮合传动过程中存在齿轮干涉问题，基于柔轮与刚轮齿面接触分析的有限元法，对柔轮轮齿采用两段螺旋线修形方法进行修形，然后对样机进行了综合性能测试。结果表明，修形后的柔轮对刚轮齿面接触应力最大为72 MPa，相比修形前减小了368 MPa，且修形后的柔轮其他位置的齿面接触应力略高于修形前，不仅有效避免了齿轮干涉问题，还提高了谐波减速器的啮合传动性能；样机的对比测试也验证了柔轮修形后的谐波减速器各项传动性能均优于修形前。该项研究为谐波减速器系统的动态特性和啮合特性分析提供了有益参考。

Abstract

Aiming at the problem of gear interference in the meshing transmission process of the double circular arc flexspline of the harmonic reducer in the actual working condition

based on the finite element method of tooth surface contact analysis between the flexspline and the circular spline

the flexspline tooth is modified by a two-stage helix modification method

and then the comprehensive performance of the prototype is tested. The results show that the maximum contact stress of the modified flexspline to the tooth surface of the circular spline is 72 MPa

which is 368 MPa less than that before the modification

and the contact stress of the other positions of the modified flexspline is slightly higher than that before the modification

which not only effectively avoids the problem of gear interference

but also improves the meshing transmission performance of the harmonic reducer. The comparative test of the prototype also verifies that the transmission performance of the harmonic reducer after the modification of the flexspline is better than that before the modification. This work is useful for the analysis on the dynamic transmission characteristics of the harmonic reducer.

关键词

谐波减速器双圆弧柔轮螺旋线修形仿真分析试验验证

Keywords

Harmonic reducerDouble circular arc flexsplineHelix modificationSimulation analysisTest verification

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