Double-drum synchronous hoister

Abstract

The invention provides a double-drum synchronous hoister and belongs to the field of hoisting device for piling machinery. The hoister comprises a driving drum, a driven drum and a frame, wherein the driving drum and the driven drum are horizontally and parallelly arranged on the frame; the driving drum is connected with a power mechanism; the same end part of the driving drum and the driven drumare provided with a driving gear and a driven gear with the same number of teeth; the driving gear is meshed with the driven gear; the driving drum and the driven drum have the same diameter; and steel wire ropes have the same winding direction on the driving drum and the driven drum, the same rope winding starting position but different rope winding starting time, namely, winding of the driven drum is not started until the driving drum is fully wound. Compared with the prior art, the double-drum synchronous hoister realizes high-accuracy synchronous rope reeling and releasing on the double drums, can detect speeds and lengths of rope reeling and releasing at any time and meets the requirement on technical development of a piling device.

Description

(1) Technical field [0001] The invention relates to a hoisting device for pile machinery, in particular to a double-barrel synchronous hoist used for lifting and dragging pile machinery equipment. (2) Background technology [0002] At present, the hoists of piling machinery are widely used, and there are many types, but they are all motor-driven mechanical belt-type friction brake single-drum hoists, or double-drum single-action hoists, which cannot realize double-drum high-precision synchronous retraction and release of ropes. It can meet the technical development requirements of pile equipment. The existing hoist does not have a speed measuring device, so it is difficult to accurately measure the length of the hoist's retracting and unwinding rope, which cannot meet the requirements for the transformation of piling machinery to automatic control. The rope arrangement of the existing hoist is very irregular, and the phenomenon of disordered ropes and overlapping ropes ofte...

AI Technical Summary

Problems solved by technology

[0002] At present, the hoists of piling machinery are widely used, and there are many types, but they are all motor-driven mechanical belt-type friction brake single-drum hoists, or double-drum single-action hoists, which cannot realize double-drum high-precision synchronous retraction and release of ropes. Can meet the technical development requirements of pile equipment

The existing hoist does not have a speed measuring device, so it is difficult to accurately measure the length of the hoist’s retracting and unwinding rope, which cannot meet the requirements of the transformation of piling machinery to automatic control

The rope arrangement of the existing hoist is very irregular, and the phenomenon of disordered ropes and overlapping ropes often occurs, which affects the service life of the steel wire rope and the accuracy of the rope.

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