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高速角接触球轴承稳态温度场的数值模拟及实验研究
引用本文:李振峰,沈锦龙,季佳伟,刘小君.高速角接触球轴承稳态温度场的数值模拟及实验研究[J].润滑与密封,2021,46(1):45-50.
作者姓名:李振峰  沈锦龙  季佳伟  刘小君
作者单位:合肥工业大学机械工程学院
基金项目:安徽省科技攻关计划项目(1501021026)
摘    要:工程应用中,高速滚动轴承由于发热引起的失效严重影响设备的正常工作,因此研究轴承的温度场至关重要。以高速机床主轴上常用的B7010C/P4Y轴承为研究对象,用整体法分析轴承的生热量,使用热网络法建立轴承稳态温度计算模型,求解不同转速、载荷和润滑油温度下的轴承温度。结果表明:各节点温度与载荷和转速成正比,钢球节点处温度最高,内滚道节点、内圈节点、外滚道节点、外圈节点温度依次降低;各节点的稳态温度随润滑油温度的降低呈线性减小,表明冷却润滑油对于控制轴承温度有重要作用。利用航空发动机主轴轴承试验机对轴承外圈温度进行试验研究,验证了热网络法求解轴承温度的可行性。

关 键 词:高速角接触球轴承  稳态温度  热网络法  轴承温度试验

Numerical Simulation and Experimental Study on Steady-State Temperature Field of High Speed Angular Contact Ball Bearings
LI Zhenfeng,SHEN Jinlong,JI Jiawei,LIU Xiaojun.Numerical Simulation and Experimental Study on Steady-State Temperature Field of High Speed Angular Contact Ball Bearings[J].Lubrication Engineering,2021,46(1):45-50.
Authors:LI Zhenfeng  SHEN Jinlong  JI Jiawei  LIU Xiaojun
Affiliation:(School of Mechanical Engineering,Hefei University of Technology,Hefei Anhui 230009,China)
Abstract:In engineering practice,the failure of high-speed rolling bearings due to heat generation seriously affects the normal operation of the equipment.Therefore,it is important to study the temperature field of the bearing.By taking the B7010C/P4Y bearing commonly used on the spindle of high speed machine tools as the research object,the heat generation of bearing was analyzed,the steady-state temperature calculation model of bearing was established by using the thermal network method,and the bearing temperature was solved under the conditions of different speed,load and lubricating oil temperature.The results show that the temperature of each node is increased with the increase of the rotational speed.The highest temperature is on the steel ball node,and the temperature of the inner raceway node,the inner ring node,the outer raceway node and the outer ring node is decreased in turn.The steady state temperature of each node is decreased linearly with the decrease of lubricating oil temperature,which indicates that cooling lubricating oil plays an important role in controlling bearing temperature.The outer ring temperature of the bearing was tested by the aero engine main shaft bearing test machine,and the feasibility of solving the bearing temperature by the thermal network method was verified.
Keywords:high speed angular contact ball bearing  steady-state temperature  thermal network method  bearing temperature test
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