受力分析在机车牵引电机转轴探伤磁痕判别中的应用

Application of Mechanics Analysis in Differentiating the Magnetic Mark of Magnetic Particle Inspection of the Traction Motor Axle of the Locomotive

针对机车牵引电机转轴磁粉探伤中的磁痕显示现象,通过对转轴受力情况的比较分析来判别磁痕的危险性,结合补充检测、实际印证的结果,得出有该磁痕显示现象的电机转轴不必采用更先进的探伤技术重新检测,仍可继续使用的结论。

Draw to the magnetic mark of the magnetic particle inspection of the traction motor axle of the locomotive, the danger of the magnetic mark is analyzed by the comparative analysis of the strength situa- tion. On the basis of supplementary measuring and real confirmation, as a result, traction motor axle needn＇t measure again with advanced technology of magnetic particle test and can still continue being used .