A method for replacing movable pulley blocks and wire ropes in bridge cranes

The technology of bridge crane and movable pulley block is applied in the direction of heavy-duty pulley, transportation and packaging, portable lifting device, etc., which can solve the problems of reducing work intensity, high work intensity, low work efficiency, etc., so as to reduce work intensity and improve work efficiency. , the effect of short working time

Active Publication Date: 2017-03-01
SHANDONG IRON & STEEL CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to solve the technical problems of high work intensity, long replacement time and low work efficiency caused by the existing method for replacing the motor pulley blocks and wire ropes of bridge cranes; The method of replacing the pulley block and the steel wire rope can realize the simultaneous replacement of the movable pulley block and the steel wire rope, and the replacement operation time is short, which greatly reduces the work intensity, reduces the workload of the workers, and improves the work efficiency

Method used

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  • A method for replacing movable pulley blocks and wire ropes in bridge cranes
  • A method for replacing movable pulley blocks and wire ropes in bridge cranes

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Embodiment 1

[0044] Such as figure 2 As shown, in this embodiment, using the above-mentioned method for replacing the movable pulley block and the steel wire rope in the bridge crane, the replacement of the movable pulley block with four movable pulleys includes the following steps:

[0045] Step 101) Wear a nylon rope on the first movable pulley 401, the second movable pulley 402, the third movable pulley 403 and the fourth movable pulley 404 of the replaced new movable pulley 5, and place the new movable pulley 5 in the work area , lower the old moving pulley block 4 wound on the old wire rope 2 to the work area, and remove the limit switch (not shown) on the reel 1;

[0046] Step 102) the first fixed pulley 301 of the fixed pulley block 3, the second fixed pulley 302 and the third fixed pulley 303 are cut off with the old wire ropes intertwined with each movable pulley, and the first movable pulley 401 of the old pulley block 4 and the reel 1 are cut off. The pressing plate of the fir...

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Abstract

The present invention provides a movable pulley set and wire rope replacing method used for a bridge type crane, according to the method, a plurality of nylon cords are used, one nylon cord is connected between each fixed pulley and each movable pulley, under traction of the nylon cords, a new wire rope is intertwined with a new movable pulley set for completion of movable pulley set and wire rope simultaneous replacing operation of the bridge crane, compared with the movable pulley set and wire rope replacing method used for the bridge type crane in the prior art, the replacing operation time is short, the work intensity is greatly reduced, the workload of workers is reduced, and the working efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of bridge crane equipment installation, and in particular relates to a method for replacing a moving pulley block and a steel wire rope in a bridge crane. Background technique [0002] The state of use of the bridge crane motor pulley blocks and wire ropes in the prior art is as follows: figure 1 As shown, at first, the first rope end 201 of the steel wire rope 2 is fixed on the reel 1 through the pressing plate (not shown), a part of the steel wire rope 2 is wound on the reel 1, and then the second rope end 202 is passed through in turn. The first movable pulley 401 on the old movable pulley block 4, the first fixed pulley 301 on the fixed pulley block 3, the second movable pulley 402 on the old movable pulley block 4, the second fixed pulley 302 on the fixed pulley block 3, and the old movable pulley block 4 After the third movable pulley 403 of the old movable pulley 403, the third fixed pulley 303 on th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66C11/16B66D3/06
CPCB66C11/16B66D3/06
Inventor 王光成
Owner SHANDONG IRON & STEEL CO LTD
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