Torque release device and steel wire rope connection structure for crane

Abstract

The invention discloses a torque release device and a steel wire rope connection structure for a crane, which relates to the technical field of engineering machinery and is used for solving the technical problems in the prior art that a lifting hook and a raising rope are twisted together because the torque on a steel wire rope cannot be released. The torque release device comprises a first connecting head, a second connecting head and a friction reducing structure, wherein an outer convex part shaped like a rotating body is fixed on the first connecting head; an inner concave part is arranged on the second connecting head; the outer convex part is embedded in the inner concave part; a first anti-loosening component is fixed on a position of the circumferential outer surface, depart from an opening of the inner concave part, of the outer convex part; a second anti-loosening component is fixed on a position of the circumferential inner surface, depart from the bottom surface of the inner concave part, of the inner concave part; the friction reducing structure is arranged between the first anti-loosening component and the second anti-loosening component. The steel wire rope connection structure comprises the torque release device provided by the invention, the steel wire rope, a lifting arm and the lifting hook. As the torque release device is used, the torque on the steel wire rope connected with the torque release device can be released effectively.

Description

technical field [0001] The invention relates to the technical field of construction machinery, in particular to a torque release device and a steel wire rope connection structure for a crane provided with the torque release device. Background technique [0002] The crawler crane is a crane with a lattice boom structure using a crawler chassis. The crawler crane usually uses a wire rope connection structure to connect the hook and the boom. Since the boom will lift the hook through the wire rope and then raise it, the wire rope is also called a lifting wire rope (abbreviated as lifting rope). [0003] At present, the hoisting wire rope is generally made by the winding method. In the prior art, when a crane is installed, the hoisting rope will be wound between multiple pulley blocks, and after the hoisting rope is wound between the pulley blocks, there will always be a torque opposite to the winding direction of the hoisting rope to a greater or lesser extent. [0004] When...

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to propose a torque release device and a steel wire rope connection structure for a crane with the torque release device, which solves the problem that the torque on the wire rope cannot be released in the prior art, causing the hook and the hoisting rope to easily spin around technical issues

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