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Variable Diameter Grille Device

A grid and variable technology, applied in mining equipment, tunnels, earthwork drilling and mining, etc., can solve problems such as unsatisfactory excavation construction, and achieve the effect of protecting mud discharge pipelines

Active Publication Date: 2022-06-28
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] The embodiments of the present invention are described below through specific specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0028] figure 1 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 according to the embodiment of the present invention, image 3 is a schematic structural diagram of the small particle size mode of the variable diameter grid devi...

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Abstract

The invention provides a variable-diameter grille device, comprising: a mounting frame installed at the mud discharge port of a shield air cushion bin and aligned with the mud discharge port; a fixed grille embedded in the mounting frame Among them: a movable grid, the installation frame is provided with a socket, the movable grid can be movably inserted in the socket, and the movable grid is set in the same direction as the fixed grid; and for The driving cylinder for pushing and pulling the movable grid is installed in the shield air cushion chamber. The invention solves the problem that the grid of the traditional mud-water-air balance shield tunneling machine cannot satisfy the tunneling construction under different working conditions.

Description

technical field [0001] The invention relates to the technical field of shield construction, in particular to a variable diameter grille device. Background technique [0002] In China, shield tunneling machines have been widely used in subways, large-diameter tunnels, underground pipelines and other constructions by virtue of their excellent ground subsidence control, high excavation efficiency and extensive bottom adaptability. The grille is an important part of the mud-water-gas balance shield boring machine. The grating can avoid the blockage of the sludge discharge pipe. [0003] At present, the grids of the general mud-water-gas balance shield tunneling machine are all fixed through the particle size, and the particle size cannot be adjusted, which cannot meet the tunneling construction under different working conditions. SUMMARY OF THE INVENTION [0004] In order to overcome the defects of the prior art, a variable diameter grille device is now provided to solve the...

Claims

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Application Information

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Patent Type & Authority Patents(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