润滑油黏度对全陶瓷球轴承腔体温度场分布规律的影响  

Influence of Lubricating Oil Viscosity on Temperature Field Distribution of Full Ceramic Ball Bearing Cavity

作　　者：孙健 杨家兴 姚金梅 王志爽 田军兴 夏忠贤 李颂华 吴玉厚 SUN Jian;YANG Jiaxing;YAO Jinmei;WANG Zhishuang;TIAN Junxing;XIA Zhongxian;LI Songhua;WU Yuhou(School of Mechanical Engineering,Shenyang Jianzhu University,Shenyang Liaoning 110168,China;School of Mechanical Engineering,Tsinghua University,Beijing 100083,China)

机构地区：[1]沈阳建筑大学机械工程学院,辽宁沈阳110168 [2]清华大学机械工程学院,北京100083

出　　处：《润滑与密封》2023年第8期40-47,共8页Lubrication Engineering

基　　金：国家自然科学基金项目(52105196;51975388);辽宁省自然科学基金项目(2020-BS-159);沈阳市中青年创新人才项目(RC210343)。

摘　　要：为揭示全陶瓷球轴承在油润滑条件下内部温度场分布及变化情况,提高全陶瓷球轴承的运转性能与使用寿命,以7007C氮化硅全陶瓷角接触球轴承为研究对象,利用仿真软件模拟分析不同工况和润滑油黏度条件下全陶瓷球轴承腔体内部温度场及润滑油的分布状态;在轴承寿命试验机上进行相同条件下全陶瓷球轴承的动态特性试验,研究在油润滑工况下全陶瓷球轴承的温升特性。结果表明:随着轴承转速的提高,全陶瓷球轴承腔体内温度呈增大趋势,腔体内润滑油体积分数呈减小趋势;更换不同黏度润滑油发现随着润滑油黏度的增大,全陶瓷球轴承腔体内温度场呈现先减小后增大的趋势,存在最优黏度值使全陶瓷球轴承腔体温度达到最小值,轴承服役性能表现最佳。研究成果为实际生产中全陶瓷球轴承最优润滑油的选择提供了技术参考。In order to reveal the distribution and change of internal temperature field of full ceramic ball bearing under the condition of oil lubrication,improve the operation performance and service life of full ceramic ball bearing,taking 7007C silicon nitriding full ceramic angular contact ball bearing as an example,the internal temperature field and lubricating oil distribution of full ceramic ball bearing under different working conditions and viscosity conditions were simulated and analyzed by using simulation software.The dynamic characteristics tests of the full ceramic ball bearing were carried out on the bearing life testing machine under the same conditions to study the temperature rise characteristics of the full ceramic ball bearing under the condition of oil lubrication.The results show that with the increase of the speed of the bearing,the temperature of the cavity increases and the volume fraction of lubricating oil decreases.By changing the lubricating oil with different viscosities,it is found that the optimal viscosity value makes the temperature of the full ceramic ball bearing chamber reach the minimum value,and the bearing has the best service performance.The research results provide a technical reference for the selection of optimal lubricating oil for full ceramic ball bearings in practical production.

关 键 词：全陶瓷球轴承 油润滑 温度场分布 黏度 摩擦生热 

分 类 号：TH117.2[机械工程—机械设计及理论]