滚动轴承温度场研究的现状和展望  

Current Situation and Expectation of Research on Temperature Field for Rolling Bearing

作　　者：刘喆[1] 王燕霜[1] 

机构地区：[1]河南科技大学机电工程学院,河南洛阳471003

出　　处：《机械传动》2010年第3期88-91,共4页Journal of Mechanical Transmission

基　　金：国家"十一五"重大科技攻关项目(JPPT-115-189)

摘　　要：高速滚动轴承的温升及温度分布状态直接影响着主轴—轴承系统的工作性能和使用寿命。滚动轴承转速的不断提高,则会导致轴承摩擦生热急剧增加,如果热量得不到及时有效地散发,轴承内部的温度将会异常升高。温度过高则会导致轴承内部零件表面灼伤甚至相互胶合、咬死而早期报废,后果十分严重。因此,随着主轴—轴承系统转速的不断提高,滚动轴承内部的温升及温度分布已经成为需要考虑的重要指标。我们对高速滚动轴承的发热机理、传热过程及温度分布三个方面分别进行了深入地分析和探讨;详细阐述了国内外学者对轴承热分析研究的现状及存在的主要问题;并对未来滚动轴承温度场的研究进行了展望。Temperature rise and distribution status of high - speed rolling beatings are directly effect on the performance and life of the main shaft bearings＇ system. The increasing of rolling beating＇ s rotate speed may lead to rapid increasing of heat generation because of friction. If the heat cannot be radiated in good time and effectively, the temperature would rise exceptionally in the bearing. The exceedingly high temperature will lead the surface of intemal parts of bearings to be burned, even to be broken down as a result of agglutination or seizure with each other, and the consequences are greatly severe. Therefore, as the rotating speed of main shaft bearings being increased, the temperature rise and distribution status have already been the important targets which need to be considered in the rolling bearings. The beatings in depth from three aspects separately which are heat generation mechanisms, heat transference pro- cesses and temperature distributions are analyzed and investigated. Moreover, the current research work and existent problem on thermal analysis of bearings by the home and overseas scholars is details discribed. Meanwhile, the expectation for the future research to the temperature field of rolling bearings is given.

关 键 词：温度场 热分析 热网络法 有限元法 

分 类 号：TH133.33[机械工程—机械制造及自动化]