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铁路车辆轮对的组装方法过去一般是用压力机将车轴压入车轮内的“压装法”。只要有适当的压力机,轮对的组装是比较容易的,也能保证安全。但是,在装轮及退轮时会产生或大或小的拉伤缺陷,随着车轮更换频率的增加,车轴拉伤缺陷的发生频率也增加,最后不得不将拉伤的车轴换去。 1950年SKF公司发表了将高压油注入配合部分的“注油装轮法”和“注油退轮法”。日本为了使退轮作业简便起见,自1964年起对新干线及部分原有干线的轮对采用了这种注油退轮法。但是,拉伤缺陷并没有全部消除,为了解决这一问题,采用
The assembly method of railway vehicle wheelsets used to be generally a “press-fit method” in which a wheel is pressed into a wheel by a press machine. As long as there is a suitable press, the assembly of the wheelset is relatively easy and safe. However, loading and unloading wheel will produce large or small strain defects, as the wheel replacement frequency increases, the occurrence of axial strain increases the frequency of defects, and finally had to pull the injured axle exchange. In 1950, SKF published the “Oil Filling Wheel Method” and the “Oil Filling Wheel Method” that inject high pressure oil into the mating part. In order to facilitate the smoothing of the unloading operations, Japan adopted such oil filling and wheel-back method for the wheelsets of the Shinkansen and some of the existing trunk lines since 1964. However, the traumatic defects are not completely eliminated, in order to solve this problem, adopted