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1问题的提出轴箱拉杆是东风4型机车走行部中的重要部件，它对轮轴起轴向及径向定位作用。但是，拉杆内部的胶圈由于老化或其他原因，容易失效，造成轮轴偏移，轮线磨耗加剧，危及行车安全。我段配属东风。型机车87台，但无架修能力。由于许多架修段也没有专门拆装胶圈及芯轴的
1 issue put forward axle box rod is the driving part of the Dongfeng 4 locomotive an important part of the axial and radial on the hub from the role of positioning. However, the rubber ring inside the rod due to aging or other reasons, easy to failure, resulting in axle deviation, wheel wear increased, endangering traffic safety. I paragraph is assigned Dongfeng. 87 locomotives, but no shelves capacity. Because many repair sections are not specialized disassembly apron and mandrel