Lifting steel wire rope anti-sagging device for flat-headed tower crane

Abstract

The invention relates to the technical field of flat-headed tower cranes, in particular to a lifting steel wire rope anti-sagging device for a flat-headed tower crane. The lifting steel wire rope anti-sagging device comprises a rope supporting device located on a suspension arm and a guiding device located on an amplitude-changing trolley. The rope supporting device is in a C shape, one end of therope supporting device is connected with a suspension arm lower chord through a shaft pin, and the other end of the rope supporting device is fixed to the lower portion of a lifting steel wire rope through a rope supporting mechanism. The position, at one end of the rope supporting device, of the inner side of the suspension arm is connected with a guiding pulley. The lifting steel wire rope anti-sagging device has the advantages that when the amplitude of the suspension arm of the crane is quite large, the multiple sets of the lifting steel wire rope anti-sagging devices are mounted on the suspension arm so that the sagging height of the lifting steel wire rope can be effectively decreased, and the device does not affect other structures and hoisting performance.

Description

technical field [0001] The invention relates to the technical field of flat-top tower cranes, in particular to a hoisting wire rope anti-sag device for flat-top tower cranes. Background technique [0002] As the working radius of the topless tower crane increases, the length of the boom 1 of the tower crane becomes longer and longer, which satisfies the needs in actual use to a certain extent. However, due to the lengthening of the boom 1 of the tower crane, when the luffing trolley is at the minimum amplitude or maximum amplitude position, the span of the hoisting wire rope 2 is very large, and the hoisting wire rope 2 sags seriously under the action of its own gravity, (such as figure 1 Shown) During the hoisting process, there is a danger of interference with the steel structure. Contents of the invention [0003] The object of the present invention is to provide a hoisting wire rope anti-sagging device for a flat-headed tower crane that does not sag and is safe to use...

AI Technical Summary

Problems solved by technology

However, due to the lengthening of the boom 1 of the tower crane, when the luffing trolley is at the position of the minimum amplitude or the maximum amplitude, the span of the hoisting wire rope 2 is very large, and the hoisting wire rope 2 sags seriously under the action of its own gravity, (such as figure 1 Shown) During the hoisting process, there is a risk of interference with the steel structure

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