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Mine using great steel derrick lifting special tool

A technology of derrick and fixture, applied in cranes and other directions, can solve problems such as occupying space, and achieve the effects of reasonable layout, convenient lifting and simple structure

Active Publication Date: 2008-06-25
CHINA COAL NO 3 CONSTR GRP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Solve the problem that the four pulley blocks cannot be arranged in the air and occupy space with each other

Method used

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  • Mine using great steel derrick lifting special tool
  • Mine using great steel derrick lifting special tool
  • Mine using great steel derrick lifting special tool

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] 1. Implementation of the pole head fixture

[0029] In accompanying drawing 1, fixture (3) is processed earlier, and is transported to the construction site, and fixture (3) is connected to the head of the pole before the pole head is erected, and the pulley block to be used is hung on the fixture. The normal wire rope threading process can be carried out after the pole is erected. When the clamp is hung on the pole, it is ensured that the clamp (3) can rotate along with the lifting angle of the derrick during the erection process of the derrick.

[0030] 2. Folding implementation

[0031] According to the design requirements in attached drawing 2, during civil construction, the fixed hinge (1) pre-embedded plate is embedded in the foundation, and its anchoring force, elevation and other data must meet the requirements of the technical measures of the construction organization, and the movable hinge (1) 2) That is, the connecting bottom plate and the derrick are welde...

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Abstract

When erecting a steel structure headframe, by traditional operation method, when using a tackle, the tackle is fixed on a holding rod by a steel wire rope and easily rotates and wrings, and causes uneven stress of the rope; therefore, a headframe can not be accurately hoisted to a correct position, which thus brings about bigger security hidden trouble. A main inclined frame part is fixed by a leg-stumble ground anchor to overcome horizontal thrust of the main inclined frame; but larger emplacement deviation is caused on the main inclined frame; when hoisting by using a plurality of steady vehicles, discrepant stress of each vehicle can create lopsidedness of a single vehicle and cause safety accident. In order to remove the three technological obstacles, in operation process of 60 headframes in recent 20 years, three technologies of a special fixture for holding a rod head, a steel foldout and a balance rope threading method and equipments (1. the special fixture for holding a rob head; 2. the foldout; 3. the balance rope threading method) are progressively researched and developed. Hidden troubles in the process of erecting the headframe are thoroughly overcome.

Description

[0001] 1. Fields of technical application [0002] The patent of the invention relates to the invention and development of a large-scale steel derrick hoisting tool in the construction of coal mines and non-coal mines, which can safely, accurately and efficiently complete hoisting tasks. This technology is mainly applied to the hoisting of large mine derricks. For the hoisting of other large parts similar to the derrick, this technology can be referred to. 2. Background technology [0003] 1. According to the traditional method, the pole head and the pulley are connected by a wire rope sleeve. This connection method is likely to cause the wire rope sleeve to be twisted, rotated, and uneven in force, and then cause the block block to rotate in the air and affect the lifting. When using multiple blocks due to structural reasons, the steel wire rope sleeve cannot be put on the pin shaft of the holding pole, which can easily cause broken strands and broken wires. [0004] 2. Acc...

Claims

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Application Information

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IPC IPC(8): B66C23/62
Inventor 李惠民张炳辉张鲁鲁黄庆宏廖鸿志
Owner CHINA COAL NO 3 CONSTR GRP
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