磁力传动泵电机轴承温升异常原因分析及处理措施  

Reason Analyses and Solutions of Abnormally-Increased Bearing Temperature Rise of Magnetic Drive Pump Motor

作　　者：李耀武 扬托 赵雪岑 唐彬[1,2] 黎春梅 曹思民[1,2] 卢庆 张骐[1,2] 陈志辉 Li Yaowu;Yang Tuo;Zhao Xuecen;Tang Bin;Li Chunmei;Cao Simin;Lu Qing;Zhang Qi;Chen Zhihui(Key Laboratory of Design Technology of Reactor System,Chengdu 610213,China;Nuclear Power Institute of China,Chengdu 610213,China;Hangzhou Dalu Industry Co.,Ltd.,Hangzhou 311200,China)

机构地区：[1]核反应堆系统设计重点实验室,四川成都610213 [2]中国核动力研究设计院,四川成都610213 [3]杭州大路实业有限公司,浙江杭州311200

出　　处：《防爆电机》2024年第4期33-38,共6页Explosion-proof Electric Machine

摘　　要：磁力传动泵在运转试验阶段出现了电机轴承温度异常升高的现象,影响了机组稳定运行。通过对磁力传动泵电机散热设计、机组振动、轴承自身质量、电机轴与联轴器同轴度等方面的排查,确定了轴承温升的机理,开展了问题复现。通过加大轴承与轴承座之间的配合间隙,避免了二者之间在温差较大时出现过盈配合,有效消除了磁力泵电机轴承温度高问题。本次问题处理方法,对类似水冷电机的轴承座配合尺寸的设计,具有较高的借鉴意义。The bearing temperature of the motor occures abnormal increase during the continuous operation test of a magnetic drive pump,which affects stable operation of the pump unit.Through the investigations of the cooling design,unit vibration,bearing quality and coaxiality aligning the motor shaft with the coupling,this paper determines the temperature rise mechanism of the bearing,and carries out the recurrence of the temperature increase.Through increasing the tolerance clearance between the bearing and bearing seat,the interference fit between them can be avoided when the temperature difference between them was gradually risen,and the problem of high bearing temperature of magnetic drive pump motor was effectively eliminated.The above treatment has a high reference significance for the design of fit dimension between the bearing and bearing seat of similar water-cooled motor.

关 键 词：电机 滚动轴承 磁力泵 轴承温度高 配合间隙 

分 类 号：TM301.41[电气工程—电机]