Special lifting appliance for shield segment three-ring horizontal assembling

A shield segment and horizontal technology, which is applied in the field of special spreader for the three-ring horizontal assembly of the shield segment, can solve the problems of difficulty in ensuring the fine adjustment of the segment assembly position, damage to the edges and corners of the segment, and the existence of safety, so as to reduce the number of tubes The effect of eliminating chip breakage, improving construction efficiency, and ensuring assembly accuracy

Inactive Publication Date: 2016-09-07
NO 4 ENG CO LTD OF CCCC FIRST HARBOR ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The two hoisting methods are not easy to ensure the fine adjustment of the segment assembly position during the horizontal assembly process of the three rings of the segment, and it is easy to cause damage to the edges and corners of the segment, and there are potential safety hazards during the hoisting process

Method used

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  • Special lifting appliance for shield segment three-ring horizontal assembling
  • Special lifting appliance for shield segment three-ring horizontal assembling
  • Special lifting appliance for shield segment three-ring horizontal assembling

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Embodiment Construction

[0016] The present invention will be further described below in conjunction with embodiment:

[0017] Such as figure 1 , figure 2 , image 3 As shown, a special spreader for the three-ring horizontal assembly of shield segments, including a hanging plate 1 with a length of 2000mm and a width of 200mm made of 20mm steel plate. The joints of the edges are designed with rounded corners. Two lifting lugs 3 are respectively welded on the two long sides of the hanging plate 1. The lifting lugs 3 are made of 20mm thick steel plates. There is a round hole with a diameter of 30mm inside the lifting lugs 3. There are three hanging holes 2 near the rounded corners at both ends of the short side of the plate 1. The diameter of the hanging holes 2 is 30mm, and the distance between the two hanging holes 2 at both ends is 1742.856mm (the horizontal projection distance of the upper hand holes of the segment 8).

[0018] The use of the special hoisting tool for the three-ring horizontal as...

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Abstract

The invention discloses a special lifting appliance for shield segment three-ring horizontal assembling. The lifting appliance comprises a rectangular lifting plate, circular bead design is adopted at the joints of the upper long side and the short sides of two sides of the lifting plate, two lifting lugs are welded to each of the two long sides of the lifting plate, circular holes are formed in the lifting lugs, and three lifting holes are formed in the positions, close to circular beads, of each of the two ends of the short sides of the lifting plate. In the segment three-ring horizontal assembling process, the lifting appliance can finely adjust the positions of segments, guarantee the segment assembling precision, quickly finish assembling and improve the construction efficiency; and moreover, in the lifting process, four-point lifting is adopted, lifting is stable, the segment breakage phenomenon can be reduced, and construction safety is guaranteed.

Description

technical field [0001] The invention relates to the technical field of a shield segment hoisting tool, in particular to a hoisting tool specially used for three-ring horizontal assembly of a shield segment segment. Background technique [0002] With the development of urban rail transit projects, more and more cities across the country have begun to develop underground space and build subway tunnels. The shield construction of subway tunnels has been widely used because of its safety and speed, and the shield prefabricated segments have also waited. Unprecedented development, in the prefabrication production process of the shield segment, it needs to go through the process of demoulding, lifting, stacking and three-ring horizontal assembly test, and various spreaders are needed for auxiliary work in the process, but in the tube In the three-ring horizontal assembly test of the sheet, there are two kinds of hoists at present, one is the clamp type, and the other is to directl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C1/22
CPCB66C1/22
Inventor 李威
Owner NO 4 ENG CO LTD OF CCCC FIRST HARBOR ENG CO LTD
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