Non-conventional winding system for high-multiplying-power bridge crane

A technology of large magnification and bridge crane, applied in the direction of load hanging components, transportation and packaging, can solve problems such as poor economy and rationality, aggravate wire ropes, and difficult layout, improve safety and reliability, and improve wire rope life. , the effect of ensuring the safety of the organization

Pending Publication Date: 2018-07-24
KERUN ELECTRO MECHANICAL ENG
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  • Abstract
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Problems solved by technology

[0003] In 2016, the company adopted the 8-magnification pulley block hoisting mechanism when lifting the 200t bridge crane with a lifting height of 18m, and designed two schemes at the same time: in scheme one, the maximum deflection angle of the wire rope when it comes out of the drum reaches 3.83 0 , exceeding the 3.5 required in the standard specification 0 , this situation will aggravate the wear of the wire rope, and cause the side wall of the rope groove to be subjected to a large lateral force, which will damage the groove, easily cause the wire rope to fall out of the groove, and even cause accidents
In the second plan, the si

Method used

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  • Non-conventional winding system for high-multiplying-power bridge crane
  • Non-conventional winding system for high-multiplying-power bridge crane
  • Non-conventional winding system for high-multiplying-power bridge crane

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[0032] The present invention will be further described below with reference to the drawings and embodiments:

[0033] Such as Figure 2 ~ Figure 6 As shown, the unconventional winding system of the present invention will be introduced as a representative of a winding system with a 200t lifting mechanism and a 10-fold rate:

[0034] The unconventional winding system for large-rate bridge cranes of the present invention includes a top-down arrangement of a reel 1, a fixed pulley group 2, a balance pulley group 3, a movable pulley group 4, and a winding method that connects the above-mentioned components into one Wire rope 5; the rope end and the rope end of the wire rope 5 are respectively fixed on both sides of the reel 1, and the rope sections of the wire rope 5 are in turn around the warp pulley block 4 and the fixed pulley block 2 in a mutually staggered manner The rope out pulley combination, the rope take-up section of the wire rope 5 in a mutually staggered way around the war...

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Abstract

The invention discloses a non-conventional winding system for a high-multiplying-power bridge crane. The system comprises a winding barrel, a fixed pulley block, a balanced pulley block, a movable pulley block and a steel wire rope, which are arranged from top to bottom, wherein a rope unwinding end and a rope winding end of the steel wire rope are fixed at two sides of the winding barrel respectively; a rope unwinding section of the steel wire rope sequentially winds around rope unwinding pulley combinations in the movable pulley block and the fixed pulley block in a mutual staggering manner;a rope winding section of the steel wire rope sequentially winds around rope winding pulley combinations in the movable pulley block and the fixed pulley block in the mutual staggering manner; the steel wire rope is located at a transition section between the rope unwinding section and the rope winding section and winds around the balanced pulley block. According to the non-conventional winding system disclosed by the invention, hoisting tonnages are improved through the increasing of multiplying power of the pulley blocks; the maximum deflection angle of an unwinding barrel of the steel wirerope is reduced through improving a rope winding manner, a transverse force on a side wall of a winding barrel rope groove is reduced, the abrasion of the steel wire rope is reduced, the safety and reliability of hoisting are improved and the winding problem of the high-tonnage and high-multiplying-power bridge crane is solved; the non-conventional winding system has the characteristics of economical efficiency, practicability, novelty and the like.

Description

technical field [0001] The invention relates to an unconventional winding system for a large-magnification bridge machine. Background technique [0002] The commonly used winding system of the bridge type crane is a double pulley block with a double drum, and the pulleys in the pulley block are configured according to the required ratio and structural requirements. Taking the 200t bridge crane as an example, the pulley block multiplier widely used in the 200t bridge crane is 8. For the traditional conventional 8-magnification winding system, refer to the attached figure 1 Shown: Usually when the magnification is ≥ 6, in order not to make the smooth part in the middle of the reel 1' too long, the wire rope branch 5' on the reel 1' is generally led to the two movable pulleys 4' in the middle of the hook group; To avoid the collision of the steel wire rope branch 5' during the movement, the diameter of the two movable pulleys 4' in the middle is slightly larger than that of th...

Claims

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Application Information

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IPC IPC(8): B66C13/00
CPCB66C13/00
Inventor 石小飞胡水根张经勇王鹏阁赵小伟
Owner KERUN ELECTRO MECHANICAL ENG
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