Rubber pneumatic bag type mud pipeline clearing top-plug device for shield tunneling machine

Abstract

The invention provides a rubber pneumatic bag type mud pipeline clearing top-plug device for a shield tunneling machine, and belongs to the field of underground tunneling construction equipment. The rubber pneumatic bag type mud pipeline clearing top-plug device comprises a tube plug inner tube, a rubber pneumatic bag and two pneumatic bag clamping plates, wherein the tube plug inner tube is of ahollow cylinder structure; one end cover of the tube plug inner tube is equipped with a clamping plate supporting frame, and the end cover and the clamping plate supporting frame are arranged in a sealing mode; two pneumatic bag clamping plates are arranged on the middle part of the outer ring of the tube plug inner tube in a parallel mode; the pneumatic bag clamping plates and the outer ring of the tube plug inner tube are arranged in a sealing mode; the rubber pneumatic bag is fixedly arranged between the two pneumatic bag clamping plates and is away from one end of the tube plug inner tube;a rubber air cylinder and the pneumatic bag clamping plates are arranged in a sealing mode; a gas-filled tube is arranged inside the tube plug inner sleeve; one end of the gas filled tube passes through the tube plug inner sleeve and is arranged in the rubber pneumatic bag, and the other end of the gas filled tube passes through the clamping plate supporting frame and is connected with an external gas supply device; a control valve is arranged on the gas filled tube; and one end, away from the rubber pneumatic bag, of the gas filled tube is equipped with a cart rope. The rubber pneumatic bagtype mud pipeline clearing top-plug device solves the problem that deposits cannot be cleared, prevents the top plug from being blocked, and avoids a difficult pull-back phenomenon.

Description

technical field [0001] The invention belongs to the field of underground shield tunneling equipment, and relates to a rubber airbag type shield tunneling machine mud pipeline cleaning top plug device. Background technique [0002] The mud pipeline plays an important role in transporting mud in and out of the mud-water balance shield machine. It transports the diluted mud outside the tunnel to the excavation surface to mix the excavated soil and sand, and then transports the mixed mud Process outside the tunnel. With the forward excavation of the shield machine, the mud pipeline also needs to be continuously lengthened and extended. When extending the mud pipeline, it is necessary to intercept the mud pipeline at the front end through the valve. After the closure, some mud and sand will be deposited on the telescopic In the pipeline at the front end of the casing, in order to prevent the mud and sand from depositing and solidifying on the pipe wall, which will affect the mud...

AI Technical Summary

Problems solved by technology

[0004] The problem to be solved by the present invention is to provide a rubber airbag type shield machine mud pipeline cleaning jacking device, by adjusting the inflation pressure of the rubber airbag to control the contact tightness between the rubber airbag and the inner wall of the pipeline, which not only solves the problem of sediment The problem of cleaning up is not clean, and at the same time, it prevents the jamming of the top plug and the difficulty of pulling back

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