一、装滚动轴承的货车在列车中混编滚动轴承货车时,装滚动轴承的货车经常出现磨托事故。原因是:装滑动轴承轴箱的防尘板孔和车轴防尘板座之间有很大的间隙;轴箱导槽和侧架轴箱导框之间也有很大的间隙。制动时,同一转向架的两根轴在闸瓦的压力下向外移动,使固定轴距增大,从而也就使制动缸鞲鞴行程随之 First, the installation of rolling bearing trucks mixed in the train rolling bearing truck, mounted rolling bearing truck often appear grinding accident. The reason is that there is a large gap between the dustproof plate hole of the sliding bearing axle box and the axle dust plate holder; there is also a large gap between the guide groove of the axle box and the guide frame of the side frame. Braking, the two bogies of the same bogie moving outward under the pressure of the brake shoe, so that fixed wheelbase increases, which also makes the brake cylinder 鞲 鞴 stroke with it