a multi-line pulley

Abstract

The invention belongs to the technical field of pulleys, and in particular relates to a multi-wire pulley, which includes a pulley mechanism for a steel rope to bypass, a fixed pulley mechanism, a pulley cantilever for installing a traction rope, a pin shaft connecting the pulley mechanism and the pulley cantilever, Under the situation of cantilever equal requirement, the arm distance of the pulley cantilever in the shackle pulley designed by the present invention is shorter than the pulley cantilever on the traditional shackle pulley; The increase of the gap between the surface and the surface is small, and the probability of the steel rope being stuck in the gap is relatively small, and the service life is long; the pulley cantilever in the present invention is composed of two first cantilevers and two second cantilevers. When two traction ropes are required to be pulled from different directions, the two first cantilevers and two second cantilevers will be deployed to both sides respectively to form two pulley cantilever traction points in different directions, and the pulleys at each direction traction point The cantilevers are double-sided structures with high strength.

Description

[0001] Those of skill [0002] Technical Field The present invention belongs to the pulley, more particularly to a multi-line pulley. Background technique [0003] Currently off-road off-road vehicles are often used in the process of the winch, pulley shackles rescue equipment, during use, the winch and the pulley shackle combination, the winch can be divided into first-, second- and third-line use and the like. [0004] Button for unloading the pulley rope is wound is mounted and the traction sheave rope pulley connected to form a cantilever by a pin, the relative rotation of the two pulleys can open the boom; wrapped around the rope on the pulley, even if there is no opening or wire rope ring can be wound on the pulleys; however, there are three problems in the conventional coin discharge pulley: [0005] 1, unloading pulleys cantilever snap pulled after a long, may be deformed, so that the gap between the surface and the surface of the cantilever with the pulley sheave increases...

AI Technical Summary

Problems solved by technology

[0005] 1. The shackle-type pulley cantilever will be deformed after a long time of pulling, so that the surface-to-surface fit gap between the pulley cantilever and the pulley will become larger, which may cause the steel rope to be stuck between the pulley cantilever and the pulley. within the fitting gap;

[0006] 2. The pulley cantilever on the traditional shackle pulley is composed of two separate cantilevers. When traction in one direction is required, the two cantilevers are combined to form a complete pulley cantilever. When two traction ropes are required to pull from different directions , expand the two cantilevers, and one cantilever completes the traction in one direction, so that the cantilever is too thin, which may cause the deformation and damage of the cantilever of the shackle pulley, which will affect the traction;

[0007] 3. The pulley on the traditional shackle pulley can only go around one strand of steel wire rope. When the winch and the pulley are required to form a pulley block to achieve labor-saving purposes, a multi-wire shackle pulley is required. Generally, one or two wire pulleys are used. When the line pulley is used, its force is not on the center surface of the pulley, so it is generally necessary to carry two sets of pulleys, which increases the cost of use and the burden of carrying

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