拖拉机离合器非标角接触球轴承的优化设计  

Optimal Design of Non-Standard Angular Contact Ball Bearings for Tractor Clutch

作　　者：王海威 刘菁 李明利 孙晶 贾松阳 WANG Haiwei;LIU Jing;LI Mingli;SUN Jing;JIA Songyang(Luoyang LYC Bearing Co., Ltd., Luoyang 471039,China;State Key Laboratory of Aviation Precision Bearings,Luoyang 471039, China)

机构地区：[1]洛阳LYC轴承有限公司,河南洛阳471039 [2]航空精密轴承国家重点实验室,河南洛阳471039

出　　处：《轴承》2021年第3期56-58,共3页Bearing

摘　　要：介绍了拖拉机离合器轴承的工作原理,分析了某拖拉机离合器轴承的失效原因。提出的改进措施为:高温回火,增加轴承外圈端面超精工序,将接触式橡胶密封改为非接触式金属防尘盖密封,将尼龙保持架改为冲压钢制碗形保持架,选择工作温度为-30~300℃的长城锂基润滑脂,填脂量为30%~50%。改进后离合器轴承的台架试验表明,主、副离合器轴承温度均有所降低,且未出现高温烧毁轴承和离合器的现象,满足使用要求。The working principles of tractor clutch bearings are introduced.The failure reason of a tractor clutch bearing is analyzed.The improvement measures are proposed,such as:high temperature tempering,superfinishing bearing outer ring end face,changing contact rubber seal to non-contact metal shield seal,nylon cage to stamped steel bowl-shaped cage,using Great Wall Lithium Grease with a working temperature of-30~300℃and the grease filling amount of 30%~50%.The bench test of improved clutch bearings shows that the temperature of primary and secondary clutch bearings is reduced,and there is no high-temperature failure for bearings and clutch,which meets requirements of use.

关 键 词：滚动轴承 拖拉机 离合器 角接触球轴承 高温回火 超精加工 非接触式密封 保持架 优化设计 

分 类 号：TH133.33[机械工程—机械制造及自动化] TH133.4