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Lubrication characteristics of cycloid pin wheel transmission of RV reducer

RV 减速器摆线针轮传动机构的润滑特性

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Abstract

In order to analyze the lubricating characteristics at different meshing points in the cycloid pin wheel transmission process, the cycloid gear teeth were discretized, combined with the kinematic analysis of the cycloid pin gear transmission and the contact analysis of the gear teeth. The progressive mesh densification method (PMD) was used to numerically solve the film thickness. The influence of the design parameters and process parameters on the lubrication characteristics was analyzed. The elastohydrodynamic lubrication and mixed lubrication characteristics at different contact points were obtained. The optimal meshing area of the cycloid gear tooth was determined, and the film thickness ratio, contact load ratio, maximum contact pressure at different points, average film thickness and roughness after contact deformation were analyzed. The conclusion of this study provides effective guidance for the research on the modification of cycloid gear teeth.

摘要

将摆线针轮齿齿廓进行离散, 结合摆线针轮传动机构运动学分析和轮齿接触分析的结果, 应用网格渐进加密法 (PMD) 对摆线针轮传动过程中不同啮合点的润滑特性进行了研究. 分析了设计参数和工艺参数对润滑特性的影响, 获得了在不同接触点的弹流润滑特性和混合润滑特性, 对比了各啮合点处的膜厚比、 接触载荷比、 最大接触压力、 接触变形后的平均膜厚和粗糙度等, 确定了摆线轮齿的最佳啮合区域. 该研究为摆线齿轮齿的修形研究提供了有效的指导.

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Authors and Affiliations

  1. School of Mechanical Engineering, University of Science and Technology Beijing, Beijing, 100083, China

    Ju Han  (韩炬) & Wei Li  (李威)

  2. School of Mechanical Engineering, North China University of Science and Technology, Tangshan, 063021, China

    Ju Han  (韩炬) & Ze-long Qiao  (乔泽龙)

Authors
  1. Ju Han  (韩炬)
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  2. Wei Li  (李威)
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  3. Ze-long Qiao  (乔泽龙)
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Contributions

The overarching research goals were developed by HAN Ju, LI Wei and QIAO Ze-long. HAN Ju and LI Wei established the models and calculated the lubrication characteristics. HAN Ju and QIAO Ze-long analyzed the calculated results. The initial draft of the manuscript was written by HAN Ju and LI Wei. All authors replied to reviewers’ comments and revised the final version.

Corresponding author

Correspondence to Ju Han  (韩炬).

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HAN Ju, LI Wei and QIAO Ze-long declare that they have no conflict of interest.

Additional information

Foundation item: Project(E2019209153) supported by the Natural Science Foundation of Hebei Province, China

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Han, J., Li, W. & Qiao, Zl. Lubrication characteristics of cycloid pin wheel transmission of RV reducer. J. Cent. South Univ. 28, 398–417 (2021). https://doi.org/10.1007/s11771-021-4611-3

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