浅谈电刷-导电环摩擦副使用寿命的影响因素  

Discussion on Factors Influencing Service Life of Friction Pairs Composed of Electric Brush and Conductive Ring

作　　者：常健[1] 赵克俊[1] 郑传荣[1] 刘文科[1] 

机构地区：[1]中国电子科技集团公司第三十八研究所,合肥230088

出　　处：《火控雷达技术》2014年第1期101-104,共4页Fire Control Radar Technology

摘　　要：主要从电刷-导电环材料配对和工作环境两方面探讨了电刷-导电环电接触滑动摩擦副使用寿命的影响因素,认为其使用寿命是多种因素综合作用的结果,包括电刷-导电环配对材料的选择,周围气体环境和湿度环境,电接触摩擦副的压力以及相对滑动速度,电刷的加工方法和烧结密度及其中石墨的含量、晶粒大小和晶粒取向等。对于获得高可靠长寿命的滑环具有一定的指导意义。The factors which influence lifetime of electrical contact sliding friction - pair composed of electric brush and conductive ring is discussed in aspects of materials matching and work environment. It is believed that conductive ring＇ s life is affected by multiple factors, such as matching materials selection of electric brush and conductive ring, surrounding atmosphere and moisture level, pressure and sliding speed of friction -pair, manufacturing tech- nique and sintered density of brush, content of graphite, graphite particle size and orientation. This paper would provide some guidance for obtaining slip -rings with high reliability and long lifespan.

关 键 词：电接触滑动摩擦副 使用寿命 材料配对 工作环境 

分 类 号：TN74[电子电信—电路与系统]