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蒸汽机车动轴瓦与轴颈的接合状态要求较高,一般对轴瓦进行机械加工后须再进行人工刮研以保证运用质量。实行动轴瓦加工后不刮研作业在国内还是一种先进的工艺方法,1965年以来,我厂对二十余台YH型机车的动轴瓦进行了不刮瓦试验,效果良好。解决了轴箱修理上长期未解决的质量与进度问题,推动了生产。现将我厂试验情况介绍如下。
Steam locomotive bearing bush and journal engagement requirements are higher, the general machining of the bearing bush to be carried out after manual scraping to ensure the quality of use. After the implementation of dynamic bearing processing does not scratch the homework in the country is still an advanced technology, since 1965, I plant more than 20 sets of YH locomotive bearing bush without scraping tile test, the effect is good. Solve the problem of long-term unresolved quality and progress of shaft box repair, and promote the production. Now I plant test conditions are as follows.