Research on Gear Modification Considering Thermal Deformation

Zhang Jinlong; Wang Shaobing; Li Wei; Zhang Chenhui

doi:10.16578/j.issn.1004.2539.2023.03.004

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Research on Gear Modification Considering Thermal Deformation

Theory·Research | 更新时间：2023-03-29

- Research on Gear Modification Considering Thermal Deformation
- Journal of Mechanical Transmission Vol. 47, Issue 3, Pages: 22-32(2023)
- 作者机构：
  
  1.郑州机械研究所有限公司，河南郑州 450001
  2.北京科技大学机械工程学院，北京 100083
- 作者简介：
- 基金信息：
- DOI：10.16578/j.issn.1004.2539.2023.03.004
  CLC：
- Published：15 March 2023，
  
  Received：13 October 2022，
  
  Revised：26 November 2022，
扫描看全文
张金龙,王少兵,李威等.考虑热变形的齿轮修形研究[J].机械传动,2023,47(03):22-32.

Zhang Jinlong,Wang Shaobing,Li Wei,et al.Research on Gear Modification Considering Thermal Deformation[J].Journal of Mechanical Transmission,2023,47(03):22-32.
张金龙,王少兵,李威等.考虑热变形的齿轮修形研究[J].机械传动,2023,47(03):22-32. DOI： 10.16578/j.issn.1004.2539.2023.03.004.

Zhang Jinlong,Wang Shaobing,Li Wei,et al.Research on Gear Modification Considering Thermal Deformation[J].Journal of Mechanical Transmission,2023,47(03):22-32. DOI： 10.16578/j.issn.1004.2539.2023.03.004.

摘要

齿轮在高速重载条件下工作时，摩擦磨损造成的影响是不容忽视的，而修形可以降低齿轮的磨损及表面温度，对提高齿轮胶合承载能力有显著作用。为此，根据齿轮啮合原理、齿轮修形原理等基本理论，对齿轮的热变形以及齿廓修形进行了研究。利用有限元仿真软件建立齿轮热力耦合参数化模型，确定轮齿各面的稳态热平衡方程，利用仿真软件对齿轮各点施加对流边界条件和摩擦热流量，求解得到了齿轮的温度场；分析齿轮温升对齿轮变形的影响规律，对齿轮修形技术进行研究，推导了弹性变形、热变形、热力耦合变形的计算公式。结果表明，修形能够降低齿轮温度，提高齿轮抗胶合强度。

Abstract

When the gears work under high-speed and heavy-load conditions

the effects of friction and wear cannot be ignored. The gear modification can reduce gear wear and surface temperature

and has a significant effect on improving the anti-scuffing ability of gears. Thus

the heat distortion and modification of gears are studied. Based on the basic theories of gear meshing principle and gear modifying principle

the following studies have been made: a parametric model of gear thermo-mechanical coupling is established using the finite element simulation software; the steady-state heat balance equations for each face of the gear teeth are determined

and the finite element simulation software is used to automatically impose convection boundary conditions and frictional heat fluxes on each point of the gears. By solving the temperature field of the gear

the influence of gear tooth temperature change on gear deformation is analyzed

and gear modification technology is studied. The calculation formulas of elastic deformation

thermal deformation and thermo-mechanical coupling deformation are derived. The results show that the modification can reduce the gear temperature and improve the scuffing strength of the gear.

关键词

齿轮传动热力耦合齿廓修形热变形

Keywords

Gear transmissionThermo-mechanical couplingTooth profile modificationThermal deformation

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