机车牵引电机轴承故障分析及检测方法研究

Fault Analysis and Detection Methord of Locomotive Traction Motor Bearing

轴承是机车牵引电机的重要部件,也是极易发生故障的部件之一。通过对电机轴承故障的分析,兼顾诊断参数敏感性与稳定性的特点,研究了结合振动加速度有效值和峭度系数的轴承故障振动综合检测法,同时辅以轴温检测的实时监测,可以有效地预防、监测机车牵引电机的轴承故障。提出了牵引电机轴承的日常保养与故障预防措施,在一定程度上减少牵引轴承的故障率,保障机车的行车安全。

The bearing is the key component of locomotive traction motor, and it is also one of the easily fault parts. According to the analysis of motor bearing failure,diagnostic characteristics of parameter sensitivity and stability. Study on the effective combination of vibration acceleration values and kurtosis coefficients of vibration comprehensive Testing method for bearing fault, meanwhile using real time monitoring of the journal temperature detection. So we can be effective in the prevention and monitoring of the bearing failure. Because of the traction motor bearings routine maintenance and fault prevention measures, we can reduce traction bearing failure rate and protect the locomotive driving safety.