高压叶片泵叶片-定子副弹流动压润滑特性研究

doi:10.3901/JME.2024.08.308

机械工程学报 ›› 2024, Vol. 60 ›› Issue (8): 308-319.doi: 10.3901/JME.2024.08.308

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高压叶片泵叶片-定子副弹流动压润滑特性研究

赵二辉^1,2, 邵波², 乔妙杰², 权龙¹, 汪成文¹

1. 太原理工大学机械与运载工程学院太原 030024;
2. 山西中电科技特种装备有限公司太原 030032

收稿日期:2023-04-12 修回日期:2023-11-05 出版日期:2024-04-20 发布日期:2024-06-17
作者简介:赵二辉,男,1985年出生,博士,讲师。主要研究方向为机械传动与流体润滑。E-mail:zhaoerhui@tyut.edu.cn;权龙(通信作者),男,1959年出生,博士,教授,博士研究生导师。主要研究方向为电液伺服与比例控制技术。E-mail:quanlong@tyut.edu.cn
基金资助:
国家自然科学基金(52005359)、中国博士后科学基金(2019M661062)和山西省青年科学基金(201901D211021)资助项目。

Study on the Elastohydrodynamic Lubrication Characteristics of the Vane-stator Pair in High Pressure Vane Pump

ZHAO Erhui^1,2, SHAO Bo², QIAO Miaojie², QUAN Long¹, WANG Chengwen¹

1. College of Mechanical and Vehicle Engineering, Taiyuan University of Technology, Taiyuan 030024;
2. Shanxi Special Equipment Company Limited of CETC, Taiyuan 030032

Received:2023-04-12 Revised:2023-11-05 Online:2024-04-20 Published:2024-06-17

摘要/Abstract

摘要： 目前高压叶片泵叶片-定子副间的弹流动压润滑特性尚不清楚，叶片-定子副的过早磨损失效已成为制约叶片泵高压化发展的瓶颈。建立叶片-定子副弹流动压润滑数学模型，结合双色光干涉弹流动压润滑试验和高压叶片泵台架试验，研究叶片-定子副间的压强分布特性、弹性变形特性、油膜厚度分布特性和油膜动压承载特性，并给出不同相位处叶片-定子副间的油膜动压承载分布图。结果显示，吸油区叶片-定子副间油膜较薄，最小油膜厚度约为0.45μm，且宽度方向两端油膜厚度比中部薄约0.01μm，因此，吸油区定子内壁两端边沿区域出现较宽且较严重的磨损。此外，吸油区流体动压也较强，最高局部压强可达1.2 GPa，吸油区油膜动压承担的载荷约占总载荷的14%。通过研究高压叶片泵叶片-定子副间的弹流动压润滑特性，揭示油膜动压承载对叶片-定子副的减阻抗磨机理，为高压叶片泵减阻抗磨优化设计提供理论基础。

关键词: 高压叶片泵, 叶片-定子副, 弹流润滑, 油膜承载, 减阻抗磨

Abstract: At present, the elastohydrodynamic lubrication characteristics between the vane-stator pair of high-pressure vane pump are not clear, and the premature wear failure of the vane-stator pair has become a bottleneck restricting the high-pressure development of vane pump. Therefore, a mathematical model of the elastohydrodynamic lubrication of the vane-stator pair is established. Combined with the bicolor light interference elastohydrodynamic lubrication test and the high-pressure vane pump bench test, the characteristics of pressure distribution, elastic deformation, oil film thickness distribution and oil film hydrodynamic bearing between the vane-stator pair were studied. And the distribution diagram of the oil film hydrodynamic bearing capacity between the vane-stator pair at different phases is provided. The results show that, the oil film in the oil absorption area is relatively thin, with a minimum oil film thickness of about 0.45 μm. The oil film thickness at both ends of the vane-stator pair in the width direction is about 0.01 μm thinner than the middle oil film thickness. Therefore, the edge areas of the inner wall of the stator in the oil absorption area show wider and more severe wear. In addition, the fluid hydrodynamic in the oil absorption zone is also strong, with the highest local pressure reaching 1.2 GPa. The load borne by the oil film hydrodynamic in the oil absorption zone accounts for approximately 14% of the total load. The elastohydrodynamic lubrication characteristics between the vane-stator pair are investigated, and the drag reduction and wear resistance mechanisms of the oil film hydrodynamic bearing on the vane-stator pair are revealed, which will provide a theoretical basis for the optimization design of drag reduction and wear resistance of high-pressure vane pump.

Key words: high-pressure vane pump, vane-stator pair, elastohydrodynamic lubrication, oil film bearing, drag reduction and wear resistance

中图分类号:

TH324

赵二辉, 邵波, 乔妙杰, 权龙, 汪成文. 高压叶片泵叶片-定子副弹流动压润滑特性研究[J]. 机械工程学报, 2024, 60(8): 308-319.

ZHAO Erhui, SHAO Bo, QIAO Miaojie, QUAN Long, WANG Chengwen. Study on the Elastohydrodynamic Lubrication Characteristics of the Vane-stator Pair in High Pressure Vane Pump[J]. Journal of Mechanical Engineering, 2024, 60(8): 308-319.

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高压叶片泵叶片-定子副弹流动压润滑特性研究

Study on the Elastohydrodynamic Lubrication Characteristics of the Vane-stator Pair in High Pressure Vane Pump

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