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Demolition method of attached tower crane in narrow terrain

An attached and terrain-based technology, applied to cranes and other directions, can solve problems such as limited operating space of cranes, high cost of dismantling methods, and difficulty in dismantling booms, achieving the effect of easy dismantling and low dismantling costs

Active Publication Date: 2019-04-16
中电建宁夏工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to the height of the construction tower crane and the weight of the boom, it is necessary to meet the tower-type working conditions of the crawler crane, and because the surrounding of the tower crane is narrow, the working space of the crane is limited, and the removal of the boom is also difficult, resulting in the cost of the above removal method is too high

Method used

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  • Demolition method of attached tower crane in narrow terrain
  • Demolition method of attached tower crane in narrow terrain
  • Demolition method of attached tower crane in narrow terrain

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Embodiment Construction

[0031] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0032] Such as Figure 1 to Figure 4 As shown, the removal method of the attached tower crane under narrow terrain includes the following steps:

[0033] a) Remove excess balance weight;

[0034] a1. A hoisting frame 3 is set on the counterweight frame 21, the hoisting frame 3 is positioned above the balance weight 22, and the first guide fixed tackle 31 is set on the hoisting frame 3; the first movable tackle is set directly above the counterweight 22 32;

[0035] a2, the hoisting machine 23 and the guiding fixed block of the tower cap 5, the first guiding fixed block 31 and the first moving block 32 are formed to remove the hoisting system of the balance weight 22;

[0036] a3. Hoist the balance weight 22 on the first moving block 32, start the hoist 23 to remove the positioning pin of the balance weight 22 and hoist it to the ground;

[0037] a4....

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Abstract

The invention provides a disassembling method of an adhesion type tower crane, being capable of reducing the disassembling cost of the adhesion type tower crane under a narrow terrain, and belonging to the technical field of building construction. The disassembling method of the adhesion type tower crane under the narrow terrain comprises the following steps: (a) disassembling a surplus balancingweight; (b) disassembling a hoisting jib; (c) balancing the tower crane; (d) disassembling a tower body; (e) disassembling a balance arm, a tower cap and a rotary mechanism. According to the disassembling method provided by the invention, no large-scale hoisting equipment is required during a tower crane disassembling process, so that the disassembling cost of the tower crane is lower.

Description

technical field [0001] The invention belongs to the technical field of building construction, and in particular relates to a dismantling method of an attached tower crane under narrow terrain. Background technique [0002] At present, in the construction of construction projects, the fixed-attached tower crane installed outside the building is a vertical transportation machine commonly used in construction projects. The dismantling method of the conventional tower crane is as follows: the lifting arm is hoisted and the balance weight is used to balance the tower crane. After the tower crane is balanced, the tower body is dismantled by the hydraulic oil cylinder lifting joint method of the jacking sleeve frame on the tower body, and finally the balance weight is removed by a crane. Lifting arm, tower cap, slewing mechanism, etc. With the process of urbanization, land resources are becoming more and more precious, and the construction site of the tower crane is becoming narro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66C23/16B66C23/62
CPCB66C23/16B66C23/62
Inventor 王朝晖高忠建罗政
Owner 中电建宁夏工程有限公司
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