Effect of solid particles in oil on tribological characteristics of the valve plate friction pair of a high-pressure vane pump

IF 1.6 3区工程技术 Q3 ENGINEERING, MECHANICAL

Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology Pub Date : 2023-01-08 DOI:10.1177/13506501221148781

S. Li, Xi Li, Hao Liu, Zhiyuan Zhou, Tao Liang

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Abstract

The friction pair wear in a high-pressure vane pump caused by solid particles in oil is a significant factor that affects the pump's service life. The study investigates the effects of solid particles on the tribological characteristics of the valve plate friction pair of a high-pressure vane pump. The effects of varying solid particle diameters (5–20 μm) and concentrations (0.001–0.015%) on the friction coefficient, wear rate, and surface morphology of the valve plate friction pair in a high-pressure vane pump were investigated. In addition, to study the effect of diameter and concentration of solid particle on the vane pump's volumetric efficiency, the volumetric efficiency of the vane pump was tested. According to the results, when the solid particle concentration was 0.001%, the friction coefficient increased first and then decreased as the solid particle diameter increased, with no obvious running-in process. Furthermore, the wear rate increased first and then decreased as the solid particle diameter also increased. When the solid particle diameter was greater than 15 μm, the friction coefficient decreased as the concentration increased, and a distinct running-in process was unobserved. During this time, the relationship between the valve plate's wear rate and the solid particle concentration was approximately linear. The wear of the valve plate with solid particles included the impact of scraping wear as well as the abrasive wear and slight adhesive wear caused by solid particles. The vane pump's volumetric efficiency decreased as the solid particle diameter increased with a linear relationship. The volumetric efficiency of the pump also showed a downtrend when the solid particle concentration increased. This research provides a reference for valve plate design and improving the performance of high-pressure vane pumps.

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油中固体颗粒对高压叶片泵配流盘摩擦副摩擦学特性的影响

高压叶片泵中固体颗粒引起的摩擦副磨损是影响泵使用寿命的重要因素。研究了固体颗粒对高压叶片泵配流盘摩擦副摩擦学特性的影响。研究了不同固体颗粒直径(5 ~ 20 μm)和浓度(0.001 ~ 0.015%)对高压叶片泵配流盘摩擦副摩擦系数、磨损率和表面形貌的影响。此外，为了研究固体颗粒直径和浓度对叶片泵容积效率的影响，对叶片泵的容积效率进行了测试。结果表明，当固相颗粒浓度为0.001%时，随着固相颗粒直径的增大，摩擦系数先增大后减小，无明显的磨合过程。随着固体颗粒直径的增大，磨损率呈现先增大后减小的趋势。当固体颗粒直径大于15 μm时，摩擦系数随浓度的增加而减小，且未观察到明显的磨合过程。在此期间，阀板磨损率与固相颗粒浓度近似成线性关系。含固体颗粒阀板的磨损既包括刮擦磨损的影响，也包括固体颗粒引起的磨粒磨损和轻微的粘着磨损。叶片泵的容积效率随固体颗粒直径的增大呈线性关系降低。随着固体颗粒浓度的增加，泵的容积效率也呈下降趋势。该研究为高压叶片泵配流盘的设计和性能的提高提供了参考。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology 工程技术-工程：机械

CiteScore

4.20

自引率

5.00%

发文量

110

审稿时长

6.1 months

期刊介绍： The Journal of Engineering Tribology publishes high-quality, peer-reviewed papers from academia and industry worldwide on the engineering science associated with tribology and its applications. "I am proud to say that I have been part of the tribology research community for almost 20 years. That community has always seemed to me to be highly active, progressive, and closely knit. The conferences are well attended and are characterised by a warmth and friendliness that transcends national boundaries. I see Part J as being an important part of that community, giving us an outlet to publish and promote our scholarly activities. I very much look forward to my term of office as editor of your Journal. I hope you will continue to submit papers, help out with reviewing, and most importantly to read and talk about the work you will find there." Professor Rob Dwyer-Joyce, Sheffield University, UK This journal is a member of the Committee on Publication Ethics (COPE).