某型直流发电机密封轴承故障分析及结构改进设计

Failure analysis of a sealed bearing of direct-current generator and structure improvement design

近年来,某型直流发电机密封轴承在外场使用中多次发生故障,造成系统不发电。根据存在的问题,对轴承结构进行了改进。改进后的轴承经过多次考核,运转正常,未出现故障,满足了直流发电机的使用要求。

In the recent years, a sealed bearing of direct-current generator broken down many times during operation, and it caused the system power off. According to these failure, the bearing structure was improved. After many examination, the improved bearing is well running,and no failure to satisfy using requirement.