A new coated self-lubricating spherical plain bearing with high performance and excellent security

IF 1.6 3区 工程技术 Q3 ENGINEERING, MECHANICAL
Yunfan Liu, Guozheng Ma, Lina Zhu, Cuihong Han, Zhen Li, Bin Zhang, Haichao Zhao, Haidou Wang, Shuying Chen
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引用次数: 0

Abstract

The low service performance and sudden failure characteristics of coated self-lubricating spherical plain bearings (SPBs) limit their engineering application prospects. In the current study, two new self-lubricating coatings types were applied to the bearing contact surfaces. The bearings were compared and investigated using life tests. Furthermore, the wear failure mechanism was investigated. The results show that self-lubricating coatings improved the service performance of the traditional bearings with manganese phosphate coating. Among them, double-sided coated bearings had the best service performance and life. More interestingly, the torque and temperature rise signal curves will show a notable signal downstage before the signal mutation stage. The large-area and complete mixed friction transfer film on the contact surfaces was the main reason for the signal downstage. Moreover, the failure mechanism changed from abrasive wear to adhesive wear and fatigue wear with the increment of load. This study results preliminarily verify the performance improvement of high-performance coatings and provide a theoretical reference for further breaking through the engineering application bottleneck of coated self-lubricating SPBs.
一种新型涂层自润滑球面滑动轴承,具有高性能和优异的安全性
涂层自润滑球面滑动轴承(SPBs)的低使用性能和突然失效特性限制了其工程应用前景。在本研究中,将两种新型自润滑涂层应用于轴承接触面。使用寿命试验对轴承进行了比较和研究。进一步探讨了磨损失效机理。结果表明,自润滑涂层提高了传统磷酸锰涂层轴承的使用性能。其中,双面涂层轴承具有最佳的使用性能和寿命。更有趣的是,在信号突变阶段之前,转矩和温升信号曲线会出现明显的信号下行。接触面上大面积完整的混合摩擦传递膜是信号下行的主要原因。随着载荷的增加,磨损机制由磨粒磨损转变为粘着磨损和疲劳磨损。本研究结果初步验证了高性能涂层的性能提升,为进一步突破涂层自润滑spb的工程应用瓶颈提供了理论参考。
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来源期刊
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).
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