Nylon slider for jib crane

Abstract

The invention relates to a nylon slide block of an arm crane. The nylon slide block comprises a slide block body provided with a bolt aperture for passing through a socket head screw; the slide block body is fixed on an arm through the socket head screw; the installation position of the slide block body is near to a telescopic pulley; an arched slot is disposed at the bottom of the slide block body; and a telescopic steel rope passes through the arched slot. The material of the slide block body is high strength nylon. The nylon slide block of the arm crane has the following advantages that (1) the steel rope can be effectively prevented from taking off the pulley slot, thereby reducing rope broken failures; (2) the structure is compact without additional members, thereby saving space between the arms maximally; (3) the product employs nylon material which has extremely small abrasion to the steel rope, thereby being helpful for prolonging service life of the steel rope; and (4) the installation and replacement are convenient, without complex installation means.

Description

technical field [0001] The invention relates to a component used in a boom crane, in particular to a nylon slider for a boom crane. Background technique [0002] Between the arm and the arm of the box jib crane, nylon sliders are generally required to support the relative sliding of the jib. [0003] In the boom telescopic mechanism composed of wire rope row and pulley block, the tension force between the wire rope and the pulley is insufficient because the telescopic steel wire is stretched for a long time. During the telescopic movement of the boom, the steel wire rope will bounce. When the bounce is large, it is easy for the wire rope to come out of the pulley groove and cause the wire rope to break. [0004] The existing technology to prevent the wire rope from grooving generally adopts a metal structure (such as a protective cover or a stop bar on the pulley to prevent the wire rope from grooving), and the disadvantage is that the wire rope is easy to wear and the serv...

AI Technical Summary

Problems solved by technology

[0003] In the boom telescopic mechanism composed of wire rope rows and pulley blocks, the tension between the wire rope and the pulley is insufficient due to the long-term tension of the telescopic steel wire.

During the telescopic movement of the boom, the steel wire rope will bounce. When the bounce is large, it is easy for the wire rope to come out of the pulley groove and cause the wire rope to break

[0004] The existing technology to prevent the wire rope from grooving generally adopts a metal structure (such as a protective cover or a stop bar on the pulley to prevent the wire rope from grooving). The disadvantage is that the wire rope is easy to wear and the service life of the wire rope is reduced.

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