Clutch type rope threading hoisting mechanism for crane

Abstract

The invention discloses a clutch type rope threading hoisting mechanism for a crane, relates to the technical field of clutch type hoisting mechanisms, and particularly relates to a hoisting mechanismwhich is applied to a large crane and is used for threading and tensioning a hoisting steel wire rope on an arm frame. The clutch type rope threading hoisting mechanism comprises a hydraulic motor, arack, a winding drum, a planetary gear train, a steel wire rope, a clutch, a rope pressing device and a guide device, wherein the rack is connected to the crane through a pin shaft; the winding drumis arranged inside the rack and can rotate inside the rack; the planetary gear train is arranged in the winding drum; the input end of the planetary gear train is connected with the hydraulic motor arranged on one side of the rack, and the output end of the planetary gear train is connected with the clutch arranged on the other side of the rack; the steel wire rope is wound on the outer wall of the winding drum; the guide device is arranged on the rack in the rope outlet direction of the steel wire rope; the rope pressing device is arranged on the rack on the side opposite to the rope outlet direction of the steel wire rope; and the hydraulic motor is connected with the winding drum through the planetary gear train and drives the winding drum to rotate, and after speed reduction and torqueincrease, the steel wire rope is finally output to the steel wire rope through the winding drum, so that winding and unwinding of the steel wire rope are realized.

Description

Technical field [0001] The invention relates to the technical field of clutch hoisting mechanisms, in particular to a hoisting mechanism applied to a large crane and used for threading and tensioning a hoisting wire rope on an arm frame. technical background [0002] With the development of large-scale engineering projects, more and more large-tonnage cranes are developed and used, and the diameter of their wire ropes also increases. The unit length weight of the wire ropes of large-tonnage cranes is much higher than that of small-tonnage cranes, which makes it more and more difficult to thread and tension the wire ropes. At present, most cranes rely on manpower to install and replace wire ropes, which is inefficient and unsafe. Although a few cranes are equipped with rope hoisting mechanisms, most of them are bulky and heavy, which is inconvenient for installation and debugging. Although the existing compact rope-threading winch is compact and lightweight, it has no guiding devi...

AI Technical Summary

Problems solved by technology

[0004] According to the above-mentioned technical problems such as large volume, heavy weight, inconvenient installation and debugging, low working efficiency of manual tow rope, easy to cause disordered rope and other technical problems, a clutch type rope-threading winch mechanism for cranes is provided

The present invention mainly utilizes the rope-threading hoisting mechanism designed with a guide device and a clutch, thereby solving the problems of low efficiency when threading and tensioning the steel wire rope and the problem of the rope being messed up when the mechanism retracts and unwinds the rope. At the same time, the internal structure of the rope-threading hoisting mechanism is newly designed so The mechanism is easier to produce and maintain

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