Analysis for Contact Stress of Half Toroidal Traction Continuously Variable Transmission

doi:10.15961/j.jsuese.2014.02.014

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Analysis for Contact Stress of Half Toroidal Traction Continuously Variable Transmission

更新时间：2023-11-14

- Analysis for Contact Stress of Half Toroidal Traction Continuously Variable Transmission
- Advanced Engineering Sciences Vol. 46, Issue 2, Pages: 166-170(2014)
- 作者机构：
  
  四川大学制造科学与工程学院
- 作者简介：
- 基金信息：
- DOI：10.15961/j.jsuese.2014.02.014
  CLC：
- Published：2014，
  
  Published Online：14 January 2014，
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李华,李青涛,姚进.半环面牵引式无级变速器接触应力分析[J].工程科学与技术,2014,46(2):166-170.

Analysis for Contact Stress of Half Toroidal Traction Continuously Variable Transmission. [J]. Advanced Engineering Sciences 46(2):166-170(2014)
李华,李青涛,姚进.半环面牵引式无级变速器接触应力分析[J].工程科学与技术,2014,46(2):166-170. DOI： 10.15961/j.jsuese.2014.02.014.

Analysis for Contact Stress of Half Toroidal Traction Continuously Variable Transmission. [J]. Advanced Engineering Sciences 46(2):166-170(2014) DOI： 10.15961/j.jsuese.2014.02.014.

摘要

中文摘要: 在分析半环面无级变速器工作原理的基础上，建立了接触压力的计算公式，以赫兹接触理论为指导，给出了接触应力的计算公式。以某公司的样机为实例，讨论了接触应力的变化规律、影响因素。研究表明：在轴向力不变的情况下，接触压力和接触应力与接触点的位置有关，接触位置越靠近锥盘轴线，则接触压力和接触应力越大，接触椭圆的长轴越大，接触椭圆的短轴越小；接触应力随环面半径和环腔半径的增大而减小，随半锥角的增大而减小；接触应力对环腔半径的改变敏感度高，对环面半径和半锥角的改变敏感度低；将锥盘与滚轮设计为线接触，可大幅降低接触应力。其研究成果可为半环面型无级变速器设计提供理论参考。

Abstract

Abstract:Based on the analysis of working principle of half toroidal CVT

and guided by Hertz contact theory

the contact stress calculation formula of half toroidal CVT was established. Taking a company’s prototype for example

the change laws and influencing factors of the contact stress were discussed.Studies showed that in the case of constant axial force

the contact pressure and stress are larger and relate to the location of the contact point

the contact position is closer to the axis of the cone

the contact ellipse’s major axis is longer

and the contact ellipse’s minor axis is smaller.The contact stress decreases with the increases of torus radius

cavity radius

and half cone angle.The contact stress have high sensitivity with cavity radius

and low sensitivity with torus radius and half cone angle.If the contact type of the cone disk and the roller is line contact

contact stress can be reduced significantly.The research results can provide theoretical reference for design of half toroidal CVT.

关键词

半环面牵引式无级变速器接触应力椭圆接触赫兹接触理论

Keywords

half toroidal traction CVTcontact stresscontact eclipseHertz contact theory

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Related Institution

Beijing Key Lab. of Advanced Manufacturing Technol., Faculty of Materials and Manufacturing, Beijing Univ. of Technol.

Beijing Key Lab. of Electro-Machining Technol.

Inst. of Standard Metrology, Chinese Academy of Railway Sciences

西北农林科技大学机电学院重庆大学机械传动国家重点实验室

重庆大学机械传动国家重点实验室

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