Maintenance equipment for lifting machinery

Abstract

The invention relates to the field of hoisting machines, in particular to a maintenance device for a hoisting machine. The maintenance device for the hoisting machine comprises a limiting guide mechanism, a first transfer mechanism and a second transfer mechanism; the limiting guide mechanism comprises a first limiting guide rod and a second limiting guide rod, one end of the first limiting guiderod is fixed to a supporting arm, one end of the second limiting guide rod is hinged to a lifting arm, and the other end of the first limiting guide rod is hinged to the other end of the second limiting guide rod; the first transfer mechanism comprises a first rack, a first gear engaged with the first rack, and a first bevel gear coaxially connected with the first gear; and the second transfer mechanism comprises a second rack, a second gear engaged with the second rack, and a second bevel gear coaxially connected with the second gear. By adoption of the technical scheme, the hoisting machinecan be maintained conveniently while cargos are prevented from falling off.

Description

Technical field [0001] The present invention relates to the field of hoisting machinery, and in particular to a maintenance device for hoisting machinery. Background technique [0002] Hoisting machinery is lifted or lifted and moved heavy objects through lifting hooks or other retrieval devices. The working process of hoisting machinery generally includes the steps of lifting, running, lowering and returning to the original position. The lifting mechanism lifts the heavy object from the object retrieval location through the object retrieval device, moves the heavy object through the operation, rotation or luffing mechanism, and returns to the original position after placing the heavy object at the designated location. [0003] Hoisting machinery is generally divided into: bridge cranes, gantry cranes, tower cranes, mobile cranes, portal cranes, lifts, cable cranes, mast cranes and mechanical parking equipment. The portal crane includes a support arm, a lifting arm and a steel ro...

AI Technical Summary

Problems solved by technology

However, the lifting arm is easy to wear the pin shaft during the long-term rotation process. If the pin shaft breaks suddenly during the process of lifting the goods, the goods will fall from the air to the ground, which will damage the goods in light cases and cause casualties in severe cases; When using a gantry crane, it is necessary to manually remove the broken pin, then manually align the pin hole, and finally manually install the new pin, which is time-consuming and laborious, and increases the safety hazards in the maintenance process

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