桥式起重机大车啃轨是普遍存在的问题,其原因比较复杂。本文对啃轨的原因从以下几方面进行了分析:导轨在水平方向和垂直方向的歪斜;结构及使用的原因;跨距误差过大;两轨道面对应点不在同一平面上;两主动轮直径大小不一样;轨道接头伸缩缝过大或过不以及高低不一致;大车行车机构安装不对称或两侧传动轴直径大小不等;操作使用不当以及经常 Bridge crane carts eating rail is a common problem, the reason is more complicated. This article analyzes the reasons for eating rail from the following aspects: the guide rail in the horizontal and vertical skew; structure and reasons for use; span error is too large; two track surface is not the same point on the same plane; two driving wheels The diameter of the different sizes; joints or excessive expansion joint joints are inconsistent with the level of inconsistency; trolley driving mechanism installed asymmetrically or on both sides of the shaft diameter; operating improper use and often