在统计上海铁路局机车整体辗钢车轮上线运用以来所发生故障现象的基础上,从理论上分析故障产生的原因及其危害性质,重点针对危害性缺陷——辋裂,指出当前探伤工艺难以发现的局限性。介绍上海铁路局当前采用的行之有效的检测方法,并提出了研制轮对在线自动化检测设备的设想。 Based on the statistical analysis of the faults that occurred since the on-line operation of the rolling wheel on the locomotive of Shanghai Railway Bureau, the causes and the harmfulness of the faults were theoretically analyzed. The critical defect, Limitations. This paper introduces the effective testing methods currently adopted by Shanghai Railway Administration and proposes the idea of ​​developing on-line automatic testing equipment for wheelsets.