高速小型复合陶瓷球轴承的润滑特性研究  

Study on the Lubrication Characteristic of the High-Speed Small Composite Ceramic Ball Bearing

作　　者：付康[1] 向北平[1] 倪磊[1] 

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》2017年第1期34-37,42,共5页Machinery Design & Manufacture

基　　金：国家重大仪器设备专项(2013YQ1304290201)

摘　　要：为了寻求一种能够快速建立高速小型复合陶瓷球轴承弹流润滑数学模型的数值计算方法,基于Reynolds方程的情况下运用Fortran语言在Visual Studio中进行编译,通过给定初始压力分布,运用迭代法求得弹流润滑完全数值解,并获取最终的压力和膜厚值。结果表明:转速、载荷以及润滑油粘度会对轴承的接触区压力、膜厚产生影响,其中随着转速的增加,最小膜厚增加,最大压力减小;随着载荷的增加,最小膜厚减小,最大压力增大;而随着润滑油粘度的增加,膜厚增加,最大压力减小。通过与传统理论计算结果的对比,结果具有较好的一致性,研究结果对高速深沟陶瓷球轴承运用具有指导意义。In order to figure out a numerical calculation method that can build a mathematical model of the elastohydrodynamic lubrication of the high-speed small composite ceramic ball bearing. Based on the equation of Reynolds, using Fortran programming language in the Visual Studio environment, By means of pressure distribution given, the numerical solution of elastohydrodynamic lubrication is obtained by the method of iteration, the final pressure and film thickness values are got. It is shown that the rotational speed, load and viscosity of lubricant have an effect on the contact force of bearing and film thickness. Namely, the minimum film thickness increase and the maximum pressure decrease with the increase of the rotational speed. The minimum film thickness decrease and the maximum pressure increase with the increase of the load. The film thickness increase and the maximum pressure increase with the increase of the viscosity of the lubricant. By means of the comparison with the result of traditional theoretical calculation, the result of the study has a good agreement with it. Therefore, the result will provides some preference for the application of high-speed small composite ceramic ball bearing.

关 键 词：复合陶瓷球轴承 弹流润滑 数值计算 点接触 迭代法 动态分析 

分 类 号：TH16[机械工程—机械制造及自动化]