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An anti derailment end beam for crane

An anti derailment end beam for crane
The crane running mechanism of bridge and gantry crane is two end beams walking on the track, at both ends of each end beam
 
Wheels for rolling fit with the track are rotationally installed. The circumferential tread of the wheel and the circumferential rim on both sides of the tread form a wheel groove structure for fitting with the track. The tread of the wheel is in rolling top press fit with the top bearing surface of the track, and the rim of the wheel plays a certain guiding role. According to relevant national standards, the minimum deviation of the height difference of the wheel force point is 2mm. In fact, there is also a horizontal deviation on the track that affects the wheel force, which makes the "three legs" phenomenon caused by the excessive deviation between the wheel and the track force point in use. If this phenomenon is more serious, the crane derailment accident caused by the wheel groove structure of the wheel falling off the track is easy to occur when the wheel is running. In the actual operation process, the wheel rim of the wheel will be worn to varying degrees after the wheel works for a long period of time, so the wheel rim can not play a good guiding role. If the driving motor on one end beam is suddenly burned out and the other end beam runs normally, the two end beams will no longer keep synchronized, and the crane is prone to derailment accidents caused by tilting and the wheel groove of the wheel is detached from the track.
 
The utility model discloses an anti derailment end beam for a crane, which comprises an end beam body, a wheel is rotatably installed on the end beam body, the wheel has a wheel groove structure for adapting to the track composed of a tread distributed along the circumference and a wheel edge on both sides of the tread, an anti derailment plate is fixed on the end face of at least one end of the end beam body, and the lower end of the anti derailment plate is lower than the wheel edge of the wheel, A U-shaped through groove extending upward from the bottom end of the anti derailment plate for the crane track is arranged at the position corresponding to the wheel on the anti derailment plate. The U-shaped through groove has a groove side wall for clamping on the track when the wheel groove structure of the wheel disengages from the track. When the horizontal deviation of the force point of the wheel is too large, or the wheel edge of the wheel cannot play a guiding role and the beams at both ends do not move synchronously, resulting in the wheel groove structure of the wheel falling off the track, the groove side wall of the U-shaped through groove will be stuck on the track and generate static friction with the track, so as to block the crane on the track to avoid the derailment accident of the crane.