高速圆柱滚子轴承生热研究

通过对高速圆柱滚子轴承拟静力学和生热的分析,编制了高速圆柱滚子轴承生热分析程序,对圆柱滚子轴承内部各热源分别进行生热分析,得到滚子轴承各个单元间的局部生热和轴承总生热。以一个型号轴承为例,分析了转速、载荷等多种工况参数对轴承局部生热和总生热的影响,结果显示内圈转速、径向载荷以及润滑油的入口油温对轴承生热的影响较大。轴承的生热分析为轴承的三维温度场分析、润滑油参数的选择等奠定了良好的基础。

Study on Heat Generation of High-speed Cylindrical Roller Bearings

Based on the quasi-static method and the theory of heat generation,a code for evaluating heat generation of high-speed cylindrical roller bearings was developed.In the code,various heat sources in a bearing were involved.Heat generation among the bearing elements and the total of heat generation were obtained.As an example,heat generation of a roller bearing was gotten.The effects of operating parameters like the rotational speed and load on heat generation were analyzed.It is shown that the rotational speed of the inner ring,the radial load and the inlet temperature of the lubricant have a great influence on heat generation in the bearing.This research can contribute calculating the three-dimensional temperature field and choosing parameters of the lubricant.