Anti-falling mechanism in case of breakage of crane hook steel wire rope

Abstract

The invention relates to an anti-falling mechanism in case of breakage of a crane hook steel wire rope. The anti-falling mechanism comprises steel wire rope clamping plates which are separately connected to moving jaws and occlusion teeth matched with the moving jaws through hinge pins, and the lower parts of the moving jaws are provided with locking holes, and connected to electric linear actuators connected to controllers through signal lines; the controllers are connected to the steel wire rope clamping plates by bolts, and the output ends of the controllers are separately connected to an alarm and an electromagnetic lock matched with the moving jaws through the signal lines; the alarm and the electromagnetic lock are both arranged on the outer side walls of the steel wire rope clampingplates, and the input ends of the controllers are connected to speed measuring devices through the signal lines; the speed measuring devices are arranged on the upper ends of the steel wire rope clamping plates; and the occlusion teeth are provided with connecting holes. The anti-falling mechanism has the advantages of rational structure, easy use, high safety and low operation cost.

Description

technical field [0001] The invention belongs to the technical field of moving pulley devices of hoisting machinery, and in particular relates to a wire rope breakage prevention mechanism for crane hooks and wire ropes. Background technique [0002] The pick-up device of the hoisting machinery is generally composed of pulleys or pulley blocks and hooks, cages, electromagnetic suckers, vacuum suckers, grabs and other pick-up mechanisms. The lifting wire rope is connected to the lifting drive mechanism of the hoisting machinery through the pulley device. Make the pick-up device lift or lower the heavy objects. When the hoisting wire rope on one side accidentally loosens or breaks during the lifting of the heavy objects, the wire rope on this side cannot bear the load. Therefore, the heavy objects follow the pulley hook together Falling at the speed of free fall causes accidents such as casualties and equipment damage. This kind of falling accident caused by the breaking of the ...

AI Technical Summary

Problems solved by technology

[0002] The pick-up device of the hoisting machinery is generally composed of pulleys or pulley blocks and hooks, cages, electromagnetic suckers, vacuum suckers, grabs and other pick-up mechanisms. The lifting wire rope is connected to the lifting drive mechanism of the hoisting machinery through the pulley device. Make the pick-up device lift or lower the heavy objects. When the hoisting wire rope on one side accidentally loosens or breaks during the lifting of the heavy objects, the wire rope on this side cannot bear the load. Therefore, the heavy objects follow the pulley hook together Falling at the speed of free fall causes accidents such as casualties and equipment damage. This kind of falling accident caused by the breaking of the hoisting wire rope is not uncommon, and it is the most common accident in lifting machinery. For this, a reasonable structure and convenient use are provided. , high safety performance, low operating cost crane hook wire rope broken rope anti-fall mechanism is of great significance

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