基于喷油位置的某航发主轴轴承温度试验研究  

Experimental Study on Temperature of Aeroengine Mainshaft Bearings Based on Oil Injection Position

作　　者：庞晓旭[1] 闫众 朱运坛 何灵辉[3] PANG Xiaoxu;YAN Zhong;ZHU Yuntan;HE Linghui(School of Mechatronics Engineering,Henan University of Science and Technology,Luoyang 471003,China;AECC Harbin Bearing Co.,Ltd.,Harbin 150025,China;Luoyang Bearing Research Institute Co.,Ltd.,Luoyang 471039,China)

机构地区：[1]河南科技大学机电工程学院,河南洛阳471003 [2]中国航发哈尔滨轴承有限公司,哈尔滨150025 [3]洛阳轴承研究所有限公司,河南洛阳471039

出　　处：《轴承》2019年第8期26-29,共4页Bearing

基　　金：河南省高等学校重点科研项目计划(17B460006)

摘　　要：建立高温环境下航发双半内圈三点角接触球轴承的寿命模型,根据轴承生热量和润滑油带走的热量,得到不同喷射位置时轴承温升的计算方法,并进行了试验研究。结果表明:随着转速、径向载荷的增加,回油温度及进回油温差呈非线性增加;下喷回油温度略高于上喷回油温度,相对偏差为1.617%;轴承总生热量相同时,下喷时润滑油带走的热量更多,可以降低轴承温升,提高轴承运行的可靠性。The life model is established for three point angular contact ball bearings with two piece inner rings for aeroengine under high temperature. According to heat generated by the bearings and heat taken away by lubricating oil, the calculation method for temperature rise of the bearings is obtained for different oil injection positions, and the experimental research is carried out. The results show that the oil return temperature and the temperature difference between oil inlet and oil return increase nonlinearly with increase of rotational speed and radial load. The oil return temperature during low injection is slightly higher than that during upper injection, and the relative deviation is 1.617%. When the total heat generated by the bearings is same, the more heat is taken away by lubricating oil during low injection, reducing temperature rise and improving operating reliability of the bearings.

关 键 词：三点角接触球轴承 双半内圈 喷射位置 回油温度 进回油温差 

分 类 号：TH133.331[机械工程—机械制造及自动化] TH117.1