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Telescopic sealing device for shield tunneling machine soil warehouse and shell

A technology of sealing device and roadheader, which is applied in earth-moving drilling, mining equipment, tunnels, etc., can solve the problems of weak devices for sealing soil bins and shells, and achieve the effect of increasing construction space and convenient replacement.

Active Publication Date: 2018-08-07
SHANGHAI TUNNEL ENG CO LTD +1
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the defects of the prior art, to provide a telescopic closing device for the soil bin and the shell of the shield tunneling machine, and to solve the problem of closing the soil bin and the shell when the existing shield does not use a screw machine The problem of relatively weak devices

Method used

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  • Telescopic sealing device for shield tunneling machine soil warehouse and shell
  • Telescopic sealing device for shield tunneling machine soil warehouse and shell
  • Telescopic sealing device for shield tunneling machine soil warehouse and shell

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Embodiment Construction

[0027] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0028] refer to figure 1 , The present invention provides a telescopic closing device for the soil bin and the casing of the shield tunneling machine, which is used to close the soil bin and the casing, so as to achieve the purpose of ensuring the safety of personnel and equipment when necessary. It solves the problem that the closing device is relatively weak when the belt conveyor is used instead of the screw conveyor to unearth. The present invention adopts the form of synchronous expansion and contraction of multiple telescopic oil cylinders, so that when the telescopic oil cylinders are fully extended, the muck in the soil bin can enter the casing, and when the telescopic oil cylinders are fully retracted, the movement between the moving ring and the fixed ring can be achieved. The sealing ring closes the soil bin and the casing, and prev...

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Abstract

The invention relates to a telescopic sealing device for a shield tunneling machine soil warehouse and a shell. The telescopic sealing device comprises a fixed ring, a movable ring and a driving structure, the fixed ring is mounted on the shell, the other end of the fixed ring extends to the position of the soil warehouse, the movable ring is nested into the fixed ring and can move back and forthalong the fixed ring, a communication opening communicated with the soil warehouse is formed in the top of the portion, extending out of the fixed ring, of the movable ring, and the driving structureis connected with the movable ring in a driving manner and mounted on the shell and drives the movable ring to move along the fixed ring. Sealing and communication of the soil warehouse and the shellare realized by relative movement of the fixed ring and the movable ring, the telescopic sealing device can be completely mounted in the shell, the front construction space of a shield tunneling machine is increased, and convenience is provided for tool replacement.

Description

technical field [0001] The invention relates to the field of shield-tunnel construction, in particular to a telescopic closure device used for a shield tunneling machine earth bin and casing. 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 ground adaptability. Among them, the closing device of the soil bin and the casing is one of the essential components for shield tunneling to increase the safety of personnel and equipment. [0003] At present, the general shield is to achieve the purpose of sealing the soil bin and the shell through the screw gate, but for the hard rock shield that does not use the screw machine, the device for closing the soil bin and the shell is relatively weak. Contents of the invention [0004] The purpose of the present invention is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/08E21D9/06
Inventor 闵锐袁向华屠垒徐晓磊严仁亮
Owner SHANGHAI TUNNEL ENG CO LTD
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