汽车发电机轴承密封结构的设计与试验  

Design and Test for Sealing Structure of Automobile Generator Bearings

作　　者：郑牧 牛建平 王建平 

机构地区：[1]浙江八环轴承有限公司,浙江台州318050

出　　处：《轴承》2016年第9期7-9,共3页Bearing

摘　　要：以汽车发电机轴承密封性能为研究对象,在原有发电机轴承密封结构的基础上,设计一种新型带补偿功能的接触式三唇密封结构。以6202-2RSTN1发电机轴承为例,对新型密封结构进行启动力矩、漏脂温升、静态高温浸水、旋转喷水、盐雾密封、高温高速和模拟工况试验。结果表明,新型密封结构提高了汽车发电机轴承的性能,可以满足汽车发电机对轴承的要求。The sealing performance for automobile generator bearings is taken as a research object,a new type three-lip contact sealing structure with compensatory function is designed based on original sealing structure of generator bearings. Taking 6202-2RSTN1 as example,the tests for new sealing structure are carried out on starting torque,grease leakage and temperature rise,water immersion under high temperature and static state,water spray in rotation,salt-mist sealing,high temperature and high speed,simulated operating condition. The results show that the new sealing structure improves performances of automobile generator bearings,and the requirements of automobile generator to bearings are met.

关 键 词：深沟球轴承 汽车发电机 密封结构 失效模式:试验 性能 

分 类 号：TH133.331[机械工程—机械制造及自动化] TH122