| 广州地铁5号线增购车辆制动夹钳螺栓断裂分析 |
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| 引用本文： | 漆瑾. 广州地铁5号线增购车辆制动夹钳螺栓断裂分析[J]. 城市轨道交通研究, 2017, 20(7). DOI: 10.16037/j.1007-869x.2017.07.030 |
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| 作者姓名： | 漆瑾 |
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| 作者单位： | 广州地铁集团有限公司运营事业总部新线建设与筹备中心,510380,广州 |
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| 摘 要： | 广州地铁5号线部分增购车辆的制动系统首次采用了适用于直线电机车辆的JCP型制动夹钳单元,但该制动夹钳单元在运用过程中出现了偏心轴螺栓断裂导致制动不缓解的故障。从制动夹钳偏心轴螺栓强度、材质等方面分析了故障发生的原因,提出了解决方案。5号线增购车辆制动夹钳优化后,整体运行情况良好,未出现制动夹钳偏心轴螺栓断裂的情况,验证了整改措施的有效性。
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| 关 键 词： | 地铁车辆 JCP型制动夹钳单元 偏心轴螺栓断裂 故障分析 |
Analysis of Brake Caliper Bolt Fracture of the Add-on Purchased Train for Guangzhou Metro Line 5 |
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| QI Jin. Analysis of Brake Caliper Bolt Fracture of the Add-on Purchased Train for Guangzhou Metro Line 5[J]. Urban Mass Transit, 2017, 20(7). DOI: 10.16037/j.1007-869x.2017.07.030 |
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| Authors: | QI Jin |
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| Abstract: | A part of the add-on purchased train for Guangzhou metro Line 5 adopt the JCP type brake caliper unit for the first time,which is mostly applied to linear motor vehicles.But in operation,breaking failures caused by the eccentric shaft bolt fracture occurred.In this paper,the main reasons for the breaking failure are analyzed from the strength and materials of brake caliper eccentric shaft bolt,corresponding solutions are proposed.After technical improvement of the brake caliper unit,its overall operation becomes smooth and failures are no long to be observed. |
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| Keywords: | metro train JCP type brake caliper unit eccentric shaft bolt fracture failure analysis |
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