Construction machinery, hoisting device and its wire rope anti-detachment mechanism

Abstract

The invention provides an engineering machine, a hoisting device and a steel rope dropping-preventing mechanism thereof. The steel rope dropping-preventing mechanism comprises a rope presser arranged between side plates of the hoisting device, and a protecting device arranged on the side plates. The protecting device comprises a plurality of protecting blocks connected with the side plates. The protecting blocks are distributed along the circumference axial to each hoisting tube evenly, and the diameter of the circumference is larger than that of each hoisting tube flange. The protecting blocks extend to the middles of the hoisting tubes along hoisting tube shafts axially till positions at least flushing with the outer sides of the hoisting tube flanges. According to the steel rope dropping-preventing mechanism of the hoisting device, the steel rope of the hoisting device can be prevented from entering a clearance between each side plate and each hoisting tube flange when the steel rope is twisted to cause loss; furthermore, the top faces of the protecting blocks of the dropping-preventing mechanism are inclined faces inclined towards the middles of the hoisting tubes, when the steel rope jumps to the protecting blocks, the steel rope can return to operating areas of the hoisting tubes automatically.

Description

technical field [0001] The invention relates to the field of machinery, in particular to an engineering machine, a hoisting device and a wire rope anti-detachment mechanism thereof. Background technique [0002] At present, one or more hoisting devices are arranged on many construction machines. The hoisting device usually includes a reel and two side plates, and the reel is installed between the two side plates for retracting and unwinding the wire rope. Usually, there will be a certain gap between the flanges at both ends of the drum and the side plates, and the hoisting device often has the phenomenon of disordered ropes or ropes during the working process. In serious cases, the steel wire rope will jump out of the drum. Lanka is between the flange of the reel and the side, so that the hoisting device stops, or even destroys the hoisting device. In the prior art, a rope presser is usually used to prevent the wire rope from tangling or running away. Although the rope pre...

AI Technical Summary

Problems solved by technology

In the prior art, a rope presser is usually used to prevent the wire rope from tangling or running away. Although the rope presser reduces the probability of the wire rope being tangled or swaying, it does not fundamentally solve the problem of scrambling or running away. , especially for some hoisting devices with lighter counterweights, it is still easy to have messy ropes, which will easily cause the wire rope to escape into the gap between the drum flange and the side plate, causing losses

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