钢绳环式CVT非连续接触股内钢丝应力研究

张武; 刘卫雄; 吕常磊; 韩飞燕

doi:10.16578/j.issn.1004.2539.2022.08.016

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钢绳环式CVT非连续接触股内钢丝应力研究

试验分析 | 更新时间：2022-09-23

- 钢绳环式CVT非连续接触股内钢丝应力研究
- Research on Discontinuous Contact Intra-strand Steel Stress of Steel Rope Ring CVT
- 机械传动 2022年46卷第8期页码：100-104
- 作者机构：
  
  1.西安科技大学机械工程学院，陕西西安 710054
- 作者简介：
  
  张武（1985— ），男，陕西咸阳人，副教授，硕士研究生导师；研究方向为乘用车无级变速传动设计与理论分析、机械系统微动磨损分析。
  刘卫雄（1992— ），男，甘肃天水人，硕士研究生；研究方向为钢绳环式无级变速器钢绳环非连续接触摩擦磨损。
- 基金信息：
  
  国家自然科学基金(51905418┫西安市科技计划项目┣2019217714GXRC013CG014-GXYD13.7)
- DOI：10.16578/j.issn.1004.2539.2022.08.016
  中图分类号：
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张武,刘卫雄,吕常磊等.钢绳环式CVT非连续接触股内钢丝应力研究[J].机械传动,2022,46(08):100-104.

Zhang Wu,Liu Weixiong,Changlei Lü,et al.Research on Discontinuous Contact Intra-strand Steel Stress of Steel Rope Ring CVT[J].Journal of Mechanical Transmission,2022,46(08):100-104.
张武,刘卫雄,吕常磊等.钢绳环式CVT非连续接触股内钢丝应力研究[J].机械传动,2022,46(08):100-104. DOI： 10.16578/j.issn.1004.2539.2022.08.016.

Zhang Wu,Liu Weixiong,Changlei Lü,et al.Research on Discontinuous Contact Intra-strand Steel Stress of Steel Rope Ring CVT[J].Journal of Mechanical Transmission,2022,46(08):100-104. DOI： 10.16578/j.issn.1004.2539.2022.08.016.

摘要

为探究弯曲钢丝绳与连续、非连续绳槽接触时股内钢丝应力分布规律，以6×19+IWS右交互捻钢丝绳为研究对象，分别建立钢丝绳与连续、非连续绳槽接触的有限元模型，分析了连续和非连续接触时股内钢丝应力分布。结果表明，在连续、非连续接触下，与绳槽接触的侧股外层钢丝等效应力值最大，股与股接触处钢丝次之，其他位置钢丝等效应力值最小；在相同轴向载荷下，非连续接触时钢丝绳产生的等效应力变化幅度高于连续接触时钢丝绳等效应力；非连续绳槽表面接触应力值比连续绳槽大39.5%，非连续接触时表面钢丝绳最大接触应力比连续接触时大5.08%；进行连续和非连续接触下钢丝绳的磨损试验发现，非连续接触时侧股外层钢丝磨痕长度、宽度均值比连续接触时分别高25.5%和13.5%，与仿真结果一致。

Abstract

In order to explore the stress distribution of steel wire in the strand when the curved steel rope is in contact with continuous and discontinuous grooves， taking the 6×19+IWS right cross-twisted steel rope as the research object， the finite element models of contact between steel ropes and continuous and discontinuous grooves are established respectively， and the stress distribution of the steel wire in continuous and discontinuous contact is analyzed. The results show that under the condition of continuous and discontinuous contact， the equivalent stress value of the outer steel rope in contact with the rope groove is the largest， followed by the steel rope at the contact between the strand and the strand， and the equivalent force value of the steel rope at other positions is the smallest under the same axial load. The change range of equivalent stress produced by steel rope in discontinuous contact is higher than that in continuous contact. The surface contact stress of discontinuous rope grooves is 39.5% larger than that of continuous rope grooves， and the maximum contact stress of surface steel rope in discontinuous contact is 5.08% higher than that in continuous contact. The wear test of steel rope under continuous and discontinuous contact shows that the average length and width of steel rope wear scar in discontinuous contact are 25.5% and 13.5% higher than those in continuous contact， respectively， which are consistent with the simulation results.

关键词

钢绳环式CVT非连续接触应力与变形磨痕

Keywords

Steel rope ring CVTDiscontinuous contactStress and deformationWear scar

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