高温环境下角接触球轴承磨损寿命分析  

Wear life analysis of angular contact ball bearing in high temperature environment

作　　者：牛荣军[1] 韩争杰 王玉飞[2] 李鸿亮[2] 邓四二[1] NIU Rongjun;HAN Zhengjie;WANG Yufei;LI Hongliang;DENG Sier(School of Mechatronics Engineering,Henan University of Science and Technology,Luoyang Henan 471003,China;Special Bearing Business Department,Luoyang Bearing Research Institute Company,Limited,Luoyang Henan 471039,China)

机构地区：[1]河南科技大学机电工程学院,河南洛阳471003 [2]洛阳轴承研究所有限公司特种轴承事业部,河南洛阳471039

出　　处：《航空动力学报》2022年第8期1780-1792,共13页Journal of Aerospace Power

摘　　要：针对高温环境下轴承材料性质和润滑状态变化,造成轴承磨损加剧,过早丧失精度的问题。首先开展高温环境下轴承用材料的摩擦磨损试验,获取材料的磨损系数。在此基础上,考虑温度、润滑、轴承材料属性等对轴承磨损性能的影响,建立高温角接触球轴承磨损模型,通过数值求解探讨工况参数和结构参数等对轴承磨损性能的影响,并评估轴承的磨损寿命。结果表明:对于高温轴承材料无磁合金GH05,在高温300℃摩擦状态下平均磨损系数为2.5×10^(-7)mm^(2)/N;随着载荷、转速、温度的增加,轴承内、外滚道的磨损率均不断增大,其中内圈磨损率大于外圈,内圈磨损特性决定着轴承的磨损寿命;载荷和转速是决定轴承磨损寿命的主要因素,轴承主结构参数对磨损寿命具有重要影响,通过结构优化可提高轴承磨损寿命。In view of the change of bearing material properties and lubrication state under high temperature environment,the bearing wear was aggravated and the accuracy was lost prematurely.Firstly,the friction and wear tests of bearing materials under high temperature environment were carried out to obtain the wear coefficient of the materials.On this basis,the wear model of high temperature angular contact ball bearing was established by considering the effects of temperature,lubrication and bearing material properties on bearing wear performance.Through numerical solution,the effects of load parameters and structural parameters on the wear performance of the bearing were discussed,and the wear life of the bearing was evaluated.The results showed that:for the bearing material non magnetic alloy GH05,the wear coefficient was 2.5×10^(-7)mm^(2)/N at300℃.With the increase of load,speed and temperature,the wear rate of inner and outer rings of bearing increased constantly.The wear rate of the inner ring was greater than that of the outer ring.The wear characteristics of the inner ring determine the wear life of the bearing;load and speed are the main factors of determining the bearing wear life.In addition,the main structural parameters of the bearing had an important impact on the wear life.The bearing wear life can be improved through structural optimization.

关 键 词：高温 滚动轴承 摩擦磨损 轴承寿命 轴承游隙 

分 类 号：V259[一般工业技术—材料科学与工程] TH133.33[航空宇航科学与技术—航空宇航制造工程]