Hazard analysis of rail gnawing of bridge crane

Rail gnawing of bridge crane refers to the phenomenon of contact friction between the wheel flange of crane and trolley and the rail side during the operation of bridge crane. The gnawing rail is seriously worn. This paper analyzes the harm of rail gnawing to bridge crane.

1.  Rail gnawing will occur when the crane is working, which will cause greater noise and vibration.
2.  Rail grinding increases the running resistance of the vehicle due to friction, resulting in overload operation of the running motor and driving mechanism for a long time, which may burn the motor or twist the transmission shaft.
3.  Rail grinding causes forced contact between wheel and rail, which intensifies the mutual wear of wheel and rail. In severe cases, it will lead to metal peeling and warping deformation of wheel flange and rail side, accelerate wheel rail damage and reduce service life.
4.  The beam structure is damaged. Crane rail gnawing will produce horizontal lateral force during operation, which will make the plant structure bear additional lateral load and be damaged to varying degrees.
5.  The crane may suddenly derail during operation, resulting in serious equipment and casualties.

Crane users should pay attention to the maintenance of the crane during use. In case of rail gnawing, it shall be repaired in time to avoid more losses.

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