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为解决广州地铁5号线直线电机车辆批量出现的安全鼻与车轴刮蹭问题,从车体结构及轮轨关系两方面进行了分析,对出现安全鼻与车轴刮蹭的车辆采取了调整安全鼻间隙到正常范围、确认连接部件状态正常、监测直线电机气隙范围、对刮轴部位重新涂漆跟踪处理、对轨道进行检测修复等应对措施,最终确定轮轨关系恶劣引起的走行部振动幅度大是导致刮蹭问题的主要原因,橡胶件的变形超差是次要原因。
In order to solve the problem of scraping the safety nose and axles of Guangzhou Metro Line 5 linear motor vehicles, the paper analyzes the relationship between the structure of the vehicle body and the wheel-rail, and adjusts the safety nose and axle scraping vehicles The gap to the normal range, to confirm the normal state of the connection components, monitoring the linear motor air gap range, scratch the shaft part of the paint again tracking treatment, the track detection and repair and other countermeasures, and ultimately determine the wheel-rail relationship caused by the adverse vibration of large Is the main reason leading to scratch problem, rubber deformation is the secondary cause of tolerance.