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针对武汉铁路局近年发生的多起DF7型机车高温偶合器泵轮轴断裂故障进行分析,查找断裂失效主要原因,为故障预防提供科学依据及指导性建议。
Aiming at the faults of pump shaft of DF7 locomotive high temperature coupling which occurred in Wuhan Railway Bureau in recent years, the main reason for failure is investigated to provide scientific basis and guidance for fault prevention.