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东风_4型机车励磁电机振动大,是我段机车惯性故障之一。它不仅影响到机车使用的耐久性,而且给乘务人员带来麻烦。分析其振动大的原因,可归纳为两个方面:一是检修质量问题,二是设计制造问题。检修质量问题往往是励磁电机与起动变速箱连接不同心度过大,或者是励磁电机转子动平衡不良。这样,就引起振动,其振动频率随转速增加而增加,转速越高,振动愈严重。长期振动不仅使弹性柱销联轴节中橡胶圈老化裂变、柱销与孔磨损,而且影响支承轴承的寿命。处理上述振动是不难的,可按段修规定和检修工艺要求处理。
Dongfeng _4 locomotive excitation motor vibration is one of the I-section locomotive inertia failure. It not only affects the durability of locomotive use, but also to bring trouble to flight attendants. Analysis of the reasons for its vibration can be summarized in two aspects: First, the quality of maintenance problems, and second, design and manufacturing issues. Maintenance of quality problems are often excited motor starter gearbox connection is not the same heart rate is too large, or poor excitation motor rotor balancing. In this way, it causes vibration, its vibration frequency increases with the increase of speed, the higher the speed, the more serious vibration. Long-term vibration not only causes the rubber ring in the elastic pin joint to age and fissure, but also to wear the pin and the hole, and affects the bearing life. Handling the above vibration is not difficult, according to paragraph repair regulations and maintenance process requirements.