高温高速混合陶瓷球轴承性能分析与试验研究  

Performance analysis and test research of high temperature and high speed hybrid ceramic ball bearings

作　　者：郑艳伟 刘公平 赵滨海[1] 郝大庆[1] 陈后清[1] ZHENG Yanwei;LIU Gongping;ZHAO Binhai;HAO Daqing;CHEN Houqing(Luoyang Bearing Research Institute Company Limited,Luoyang Henan 471039,China)

机构地区：[1]洛阳轴承研究所有限公司,河南洛阳471039

出　　处：《航空动力学报》2024年第8期496-504,共9页Journal of Aerospace Power

摘　　要：针对高温高速轴承易发生黏着磨损、保持架断裂等失效特征,搭建了轴承动力学分析模型和试验台架,对轴承进行了优化设计、性能分析及试验验证。研究结果表明:随着转速的增加,内圈接触应力增大,外圈接触应力减小,混合陶瓷球轴承的最大接触应力大于全钢轴承;随着转速的增加,滚动体与保持架的碰撞力、保持架打滑率和旋滚比均增加,保持架稳定性降低,全钢轴承的保持架打滑率和旋滚比均大于混合陶瓷球轴承,滚动体与保持架碰撞力相当;自主搭建了试验台进行试验研究,当供油温度110℃,转速为120 000r/min时,混合陶瓷球轴承温度低于全钢轴承,混合陶瓷球轴承振动加速度低于2.0g,全钢轴承振动加速度低于4.0g,通过供、回油温差,可判断混合陶瓷球轴承温升低于全钢轴承;试验验证了混合陶瓷轴承较全钢轴承更适用于高温高速工况。In view of the failure characteristics of high temperature and high speed bearings,such as adhesive wear and cage fracture,the bearing dynamic analysis model and bearing testing rig were built.The optimized design,performance analysis and test verification of the bearing were carried out.The research results showed that with the increase of the speed,the contact stress of the inner ring increased,and the contact stress of the outer ring decreased.The maximum contact stress of the hybrid ceramic ball bearing was greater than that of the all-steel bearing;with the increase of the speed,the rolling elements collided with the cage.The force,cage slip rate and spin-to-roll ratio increased,and the cage stability was reduced.The cage slip rate and spin-to-roll ratio of the all-steel bearing were both greater than those of the hybrid ceramic ball bearing,and the collision force of the rolling elements and the cage was equivalent;at the oil supply temperature of 110 ℃,the speed was 120 000 r/min,the temperature of the hybrid ceramic ball bearing was lower than that of the all-steel bearing,the vibration acceleration of the hybrid ceramic ball bearing was lower than 2.0g,and the vibration acceleration of the all-steel bearing was lower than 4.0g.It can be judged that the temperature rise of hybrid ceramic ball bearings was lower than that of all-steel bearings through the temperature difference between supply and return oil;the test verified that hybrid ceramic bearings were more suitable for high-temperature and high-speed working conditions than all-steel bearings.

关 键 词：高温 高速 混合陶瓷球轴承 接触应力 旋滚比 

分 类 号：V233.1[航空宇航科学与技术—航空宇航推进理论与工程] TH133.33[机械工程—机械制造及自动化]