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Threading method for main steel wire rope of track crane

A wire rope and crane technology, which is applied to clockwork mechanisms, hoisting devices, cranes, etc., can solve problems such as time-consuming, laborious, unsafe, and labor-intensive

Inactive Publication Date: 2008-08-13
SHOUGANG CORPORATION +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] For many years, this time-consuming and labor-intensive method has been used in the work of assembling cranes to thread and wind steel wire ropes, which is labor-intensive and unsafe

Method used

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  • Threading method for main steel wire rope of track crane

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Embodiment Construction

[0012] The following takes the 4100WS 300-ton crawler crane as an example to illustrate the threading method of the main steel wire rope. According to calculations, when all crawler cranes are assembled, the length of the steel wire rope that needs to be released from the drum and wound between the pulley blocks is the most during assembly. When the 4100WS main pole luffing rope needs to be threaded and wound nearly 200 meters. Therefore, choosing a 200-meter thin steel wire rope as the traction rope can meet the assembly requirements of most large crawler cranes at present.

[0013] As shown in Figure 1, using this method to assemble cranes, each crane needs to be equipped with a set of steel wire ropes with a diameter of 8mm to 10mm as the traction rope 1, and the end of the traction rope 1 is inserted into a rope sleeve. A connecting ring 2 is welded at the head of the luffing steel wire rope and the main steel wire rope 3, and the connecting ring 2 can be replaced by a nut...

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Abstract

The present invention provides a stringing method of main rope of crawler crane, and a method of the coarse-wire rope reeving between the up-down pulley block driven by seizing wire as a conveying rope by crane winch or exogenic winch as pulling winch when assembling large-scale crawling crane, replacing the artificial reeving hoisting cable mode by multiple assembling worker climbing hoister A type frame and big rod, the method achieves timesaving, labour saving, manpower saving effects, and reduces potential safety hazard.

Description

technical field [0001] The invention relates to a steel wire rope threading method used in the assembly of a large crawler crane, and is especially suitable for the threading method of the main steel wire rope of the crawler crane. Background technique [0002] The cranes of large crawler cranes frequently move around, and the threading and winding of steel wire ropes is always a time-consuming and laborious work every time the crane is assembled. In and out of the pulley block. [0003] The diameter of the luffing wire rope and the main hoisting wire rope used by large crawler cranes is generally 22mm to 28mm, and the weight of the wire rope is 10Kg / m. In addition, the wire rope often carries torsion, and the strength is very large. When threading the self-supporting rope around the mast, people need to climb to the top of the A-frame of the main engine more than 9 meters high to thread the wire rope. Therefore, one person should stand every two meters on the A-frames on ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66D1/36B66D1/34B66C23/36
Inventor 张绪王大强
Owner SHOUGANG CORPORATION
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