真空环境下高速小型陶瓷球轴承润滑特性分析  

Analysis of Lubrication Characteristics of High Speed and Small Ceramic Ball Bearing in Vacuum Environment

作　　者：付康[1] 向北平[1] 周建[1] 倪磊[1] FU Kang,XIANG Bei-ping,ZHOU Jian,NI Lei(Key Laboratory of Manufacturing Process Testing Technology Ministry of Education, Southwest University of Science and Technology,Sichuan Mianyang 621010, Chin)

机构地区：[1]西南科技大学制造过程测试技术教育部重点实验室,四川绵阳621010

出　　处：《机械设计与制造》2018年第8期59-62,共4页Machinery Design & Manufacture

基　　金：国家重大仪器设备专项(2013YQ1304290201)

摘　　要：为了能为分子泵中高速运转状态下深沟陶瓷球轴承选用更合适的润滑油,采用软件仿真与试验相结合的办法对轴承在多种黏度的润滑油对轴承接触区润滑状态的影响进行深入探讨。应用复合迭代法并通过Fortran语言进行编程在VISUL STUDIO中对轴承运动进行模拟,求得的弹流润滑仿真结果,通过与理论计算得对比具有一致性,大大提升了计算速度;并通过在在一定的时间内进行各种润滑油润滑条件下轴承的运转测试,对轴承接触区的摩擦系数和磨斑深度进行测量。研究结果表明:润滑油黏度越大,轴承接触区最大压力小,最小油膜厚度越大,摩擦系数和磨斑深度越小,润滑效果也最好。In order to molecular pump in the high speed condition deep groove ceramic ball bearings to choose more appropriate lubricating oil,by adopting the combination of software simulation and test method for bearings in a variety of viscosity of lubricant to the bearing contact area,the influence of lubrication condition for further discussion. Application of compound iteration method and through the Fortran programming language in the VISUL STUDIO,to simulate the movement of elastohydrodynamic lubrication,the simulation results,compared with the theoretical calculation to have consistency,greatly improve the calculation speed;And through all kinds of lubricating oil in to a certain period of time,under the condition of lubrication bearing running test,friction coefficient of the bearing contact area and grinding depth measurement.The research results show that the lubricating oil viscosity,the greater the bearing small contact area,maximum pressure,the minimum oil film thickness,the greater the friction coefficient and grinding depth,the smaller the lubrication effect is best.

关 键 词：陶瓷球轴承 分子泵 弹流润滑 试验机 

分 类 号：TH16[机械工程—机械制造及自动化]