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高速动车组检修工作频繁紧张,每列动车组(8节车厢)一级检修规定检修用时约1个小时,车下设备检修需要拆卸安装底板、裙板紧固螺栓,在有限的检修时间内如何快速处理螺栓断裂故障是各动车所经常头疼的问题,螺栓断裂故障处理成为影响动车所整个检修工作能否按照检修时间节点正常完成检修任务、保证列车行车安全的关键之一。通过对北京、上海、广州及武汉各地动车所发生的高速动车组紧固螺栓断裂情况进行分析,提出解决措施和改进建议。
Maintenance of high-speed EMUs frequent tension, each EMU (8 cars) a maintenance requirements of about 1 hour overhaul, under-car equipment maintenance needs to dismantle the installation of the floor, apron fastening bolts, within the limited time of the overhaul Rapid processing of bolt failure is a frequent headache for all motor vehicles. Failure of bolt failure has become one of the key factors that affect whether the entire maintenance of the motor vehicle can be normally completed and repaired in accordance with the time of maintenance. Based on the analysis of the fracture of fastening bolts of high speed EMUs occurring in the motorcars in Beijing, Shanghai, Guangzhou and Wuhan, the solutions and suggestions for improvement are put forward.