An anti-twist device for a crane wire rope

Abstract

The utility model relates to an anti-rotation device for a crane steel wire rope, which relates to a steel wire rope for a hoisting mechanism of a crane with a large lift. The invention solves the problem that the torsional stress generated by the steel wire rope of the hoisting mechanism of the existing crane cannot be released due to the direction of rotation and winding, and the service life of the steel wire rope is affected. One ends of the two anti-twist devices are respectively hinged to both ends of the balance arm of the pulley device on the hoisting mechanism of the crane, and the other ends of the two anti-twist devices are respectively hinged to a wedge-shaped joint, and the wedge-shaped joint is fixedly connected to the wire rope; The two anti-rotation devices are composed of trunnions, shells, thrust bearings, nuts, radial bearings, inner and outer bushings, and seats; the seats are hinged at the ends of the balance arms, so that The ear hole of the trunnion is hinged with the ear hole of the wedge joint, and the shaft body of the trunnion is installed in the housing through the thrust bearing, nut, radial bearing, inner and outer bushings. The invention is suitable for application in the hoisting mechanism of a crane with a large lift.

Description

technical field [0001] The invention belongs to hoisting and transporting machinery, in particular to a steel wire rope for a hoisting mechanism of a large-lift crane. Background technique [0002] At present, the upper pulley device of the commonly used crane hoisting mechanism is as follows: figure 1 As shown, the two ends of the balance arm 1 are hinged with the wedge joint 2, and the wedge joint 2 and the wire rope 4 are fixedly connected by the wire rope clip 5 (the wire rope cannot rotate). Since the steel wire rope 4 cannot rotate relative to the balance arm 1, the torsional stress produced by the steel wire rope due to the direction of rotation and winding cannot be released. For cranes with low head, this torsional force will not have a great impact on the wire rope, but the situation is different for cranes with high head. Due to the high head and the long wire rope, the torsional stress caused by the rotation of the wire rope itself and the winding stress of the...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the above shortcomings of the prior art, provide an anti-twist device for the steel wire rope of the crane, and solve the problem that the torsional stress generated by the steel wire rope of the existing crane hoisting mechanism cannot be released due to the rotation direction and winding, which affects the service life of the steel wire rope question

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