Based on the research of the structure of arrester and bolts in axle shaft assembly, the author gives a floating structure, with which we can directly press the components on the dolly.

• 在研究半轴总成制动器及过渡接盘螺栓结构的基础上,提出了一种可以在线体小车上直接压装元件的浮动支承结构。