Hazards Caused By Gantry Crane Overload Operation

The damage caused by the overload operation of the gantry crane: the excessive gravitation caused by the overload operation of the gantry crane can cause the wire rope to be broken, the transmission components to be damaged, and the motor to be burnt. Due to insufficient braking force, the brake cannot hold the brake and a major accident occurs. The overload operation is very harmful to the gantry crane structure. The typical example is that the main beam is bent downward, and the upper cover and the web are cracked and desoldered, which brings serious accidents to the safe operation of the gantry crane.

Due to the downward deflection of the main beam, the trolley track will deform along with the main beam. When driving from the middle to the ends, the trolley not only overcomes the normal running resistance, but also overcomes the additional resistance caused by the climbing. In severe cases, the motor of the trolley operating mechanism was burned. In addition, the car will also appear "slip" phenomenon, rolling on its own, seriously affecting lifting operations. For the double-beam gantry crane, it will also cause the "three legs" of the trolley to run. Due to the horizontal side bend, the phenomenon of "railing" will occur during small operation.

Overloading is more harmful to the boom type gantry crane, which often causes a major accident in which the boom and the tower body are broken. Because the overload damages the stability of the gantry crane, it will also cause a malignant accident of the whole machine overturning.