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Variable-diameter type grid device

A grid, variable technology, applied in the direction of pipes/pipe joints/fittings, mining equipment, earth-moving drilling, etc., can solve the problem of not being able to meet the excavation construction and other problems, and achieve the effect of protecting the mud discharge pipeline

Active Publication Date: 2020-08-04
SHANGHAI TUNNEL ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the defects existing in the existing technology, a variable-diameter grid device is now provided to solve the problem that the grid of the traditional mud-water-air balance shield tunneling machine cannot meet the needs of tunneling construction under different working conditions

Method used

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Embodiment Construction

[0027] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention.

[0028] figure 1 It is a schematic structural diagram of the large particle size mode of the variable diameter grid device according to the embodiment of the present invention, figure 2 It is a cross-sectional view of the large particle size mode of the variable diameter grid device of the embodiment of the present invention, image 3 It is a schematic structural diagram of the small particle size mode of the variable diameter grid d...

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PUM

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Abstract

The invention provides a variable-diameter type grid device. The variable-diameter type grid device comprises a mounting frame, a fixed grid, a movable grid and a drive oil cylinder, wherein the mounting frame is mounted in a mud discharge hole of a shield gas cushion bin, and is aligned to the mud discharge hole; the fixed grid is embedded into the mounting frame; a socket is formed in the mounting frame; the movable grid is movably inserted into the socket; the movable grid and the fixed grid are arranged in the same direction; and the drive oil cylinder is used for pushing the movable grid,and is mounted in the shield gas cushion bin. The variable-diameter type grid device solves the problem that a grid of a conventional mud water gas balance shield heading machine cannot meet the heading construction problem under different working conditions.

Description

technical field [0001] The invention relates to the technical field of shield tunneling, in particular to a variable-diameter grid device. Background technique [0002] In China, shield tunneling machines have been widely used in the construction of subways, large-diameter tunnels, and underground pipelines due to their excellent ground subsidence control, high excavation efficiency, and wide-ranging adaptability to the bottom layer. The grid is an important part of the mud-water-air balance shield tunneling machine. The grill prevents the mud pipe from clogging. [0003] At present, the grids of general mud-water-air balance shield tunneling machines are fixed in particle size, and the particle size cannot be adjusted, which cannot meet the tunneling construction under different working conditions. Contents of the invention [0004] In order to overcome the defects existing in the existing technology, a variable-diameter grid device is now provided to solve the problem ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/06F16L55/24
CPCE21D9/06F16L55/24
Inventor 吴文斐屠垒袁向华闵锐倪美娜张雅澜顾旭莹严仁亮王秋平凌文潘汪洋费俊杰沈嘉磊王鹭鹤
Owner SHANGHAI TUNNEL ENG CO LTD