Influence of Roughness on Isothermal Elastohydrodynamic Lubrication of Roller Enveloped Worm Drive

Yan Qi; Honghui Liao; Xudong Wang; Zaixin Liu; Jinkuan Li

doi:10.16578/j.issn.1004.2539.2022.09.005

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Influence of Roughness on Isothermal Elastohydrodynamic Lubrication of Roller Enveloped Worm Drive

Theory·Reserach | 更新时间：2022-09-26

- Influence of Roughness on Isothermal Elastohydrodynamic Lubrication of Roller Enveloped Worm Drive
- Journal of Mechanical Transmission Vol. 46, Issue 9, Pages: 36-41(2022)
- 作者机构：
  
  1.西华大学机械工程学院，四川成都 610039
- 作者简介：
- 基金信息：
- DOI：10.16578/j.issn.1004.2539.2022.09.005
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祁岩,廖鸿辉,汪旭东等.粗糙度对滚柱包络端面蜗杆传动的等温弹流润滑影响[J].机械传动,2022,46(09):36-41.

Qi Yan,Liao Honghui,Wang Xudong,et al.Influence of Roughness on Isothermal Elastohydrodynamic Lubrication of Roller Enveloped Worm Drive[J].Journal of Mechanical Transmission,2022,46(09):36-41.
祁岩,廖鸿辉,汪旭东等.粗糙度对滚柱包络端面蜗杆传动的等温弹流润滑影响[J].机械传动,2022,46(09):36-41. DOI： 10.16578/j.issn.1004.2539.2022.09.005.

Qi Yan,Liao Honghui,Wang Xudong,et al.Influence of Roughness on Isothermal Elastohydrodynamic Lubrication of Roller Enveloped Worm Drive[J].Journal of Mechanical Transmission,2022,46(09):36-41. DOI： 10.16578/j.issn.1004.2539.2022.09.005.

摘要

基于滚柱包络端面蜗杆传动副的啮合原理，综合考虑中心距、滚柱半径、喉颈系数、蜗轮直径各项几何参数的影响，根据弹性流体动压润滑理论，在Matlab中采用牛顿迭代法和Newton-Raphson法对其数值计算求解，对该新型传动副共轭齿进行研究，完成了共轭齿间线接触问题的分析；给出了该传动副共轭齿面在几何参数变化下，粗糙度幅度值大小变化下的润滑油膜压力和油膜厚度示意图，并进行了分析。结果表明，该传动副性能较好，影响润滑的重要参数为滚柱半径与啮合位置，而喉颈系数和蜗轮直径参数对润滑特性影响不大；共轭齿面间能够产生全膜润滑，避免发生直接接触，减小磨损量并降低油温，能够同时提升传动效率与抗胶合能力。为该新型传动副的研制提出了必要的理论依据。

Abstract

Based on the meshing principle of the roller enveloped end face worm drive pair， the influence of the center distance， the roller radius， the throat coefficient， and the worm gear diameter are considered comprehensively. According to the elastohydrodynamic lubrication theory， the Newton iteration method is used in Matlab. The Newton-Raphson method is used to solve its numerical calculation， the conjugate teeth of the new transmission pair are studied， and the analysis of the line contact between the conjugate teeth is completed. The schematic diagram of lubricating oil film pressure and oil film thickness under the change of geometric parameters and roughness amplitude of the conjugate tooth surface of the transmission pair is given， and the analysis is completed. The results show that the performance of the transmission pair is good. The important parameters affecting the lubrication are the roller radius and the meshing position， while the throat coefficient and the worm gear diameter have little effect on the lubrication characteristics. Full-film lubrication can be generated between the conjugated tooth surfaces to avoid direct contact， reduce wear and oil temperature， and improve transmission efficiency and anti-glue ability at the same time. Therefore， the necessary theory and application value are given for the development of the new transmission pair.

关键词

滚柱粗糙度弹流润滑油膜压力油膜厚度

Keywords

RollerRoughnessElastohydrodynamic lubricationOil film pressureOil film thickness

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