考虑结合面接触热阻的角接触球轴承温度场分析

摘要

在对滚动轴承摩擦学及传热学进行分析的基础上,计算了角接触球轴承的摩擦热,建立了考虑结合面接触热阻的角接触球轴承热传递模型.利用ANSYS获得了轴承的温度场,对比了在考虑接触热阻和不考虑接触热阻两种情况下角接触球轴承温度场的分布情况.结果表明:考虑接触面之间的接触热阻时,轴承的温度要略高于不考虑接触热阻时,且结合面的两表面之间存在温差.%Based on analysis of the tribology and heat transfer theory of rolling bearings,the friction heat of angular contact ball bearings is calculated,and the heat transfer model is developed considering thermal contact resistance of coupling surfaces.Owing to the ANSYS,the distribution of temperature field is compared with and without considering the thermal contact resistance.The results show that when the thermal contact resistance is considered,the temperature of bearings is slightly higher than that without thermal contact resistance.There is temperature difference between the two surfaces of contact surface.