Adjustable hinging sealing device of rectangular shielding tube push bench

A hinged sealing and adjustable technology, applied in the direction of engine sealing, mechanical equipment, engine components, etc., can solve problems such as affecting jacking efficiency and harsh construction conditions of pipe jacking machines, so as to improve jacking efficiency and reduce maintenance costs. , the effect of many times of use

Inactive Publication Date: 2014-10-08
CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the sealing device at the joint of the front shield and the tail shield of most pipe jacking machines is composed of one or two static seals. The harsh construction conditions of the pipe jacking machine will seriously affect the jacking efficiency

Method used

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  • Adjustable hinging sealing device of rectangular shielding tube push bench

Examples

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Embodiment Construction

[0015] The examples of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0016] An adjustable hinge sealing device of a rectangular shield pipe jacking machine, the rectangular shield pipe jacking machine includes a cutter head device, a shield structure, a driving device, a screw conveyor and a rear supporting system, and the shield structure includes a front shield, The tail shield, the deviation correction oil cylinder, the adjustable hinge sealing device and the hole exit cylinder, the front shield and the tail shield are connected through the deviation correction oil cylinder.

[0017] Adjustable hinged seals for rectangular shield pipe jacking machines such as figure 1 As shown, it includes a hinged seal ring 1, on which a lip seal 2, a nylon retaining strip 3, a steamed bun seal 4, a compression ring 5 and an adjustment device are provided in sequence from front to back. Wherein, the hinged sealing ring 1 is arrang...

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PUM

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Abstract

The invention discloses an adjustable hinging sealing device of a rectangular shielding tube push bench. The adjustable hinging sealing device comprises a hinging sealing ring, wherein the hinging sealing ring is sequentially provided with a lip-shaped seal, a nylon baffle strip, a steamed bun shaped seal, a pressing ring and an adjusting device from front to back; the hinging sealing ring is arranged on a tail shield; the lip-shaped seal is positioned inside the lip hole in the front of the hinging sealing ring; the steamed bun shaped seal is positioned at the rear part of the hinging sealing ring; the nylon baffle strip and the pressing ring are respectively arranged on two sides of the steamed bun shaped seal; the adjusting device is fixed at the tail part of the hinging sealing ring. The adjustable hinging sealing device disclosed by the invention is more reliable in sealing performance when compared with two sets of static seals used in a conventional tube push bench, the service life of the hinging sealing is prolonged, and thus successful accomplishment of each push distance is facilitated, the overhaul times are reduced, the maintenance cost is lowered, and the push efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of tunnel excavation, in particular to an adjustable hinge sealing device applicable to a rectangular shield pipe jacking machine with a rectangular excavation section. Background technique [0002] With the sustained and steady growth of our country's economy and the further acceleration of the urbanization process, the demand for underground pipelines in our country is also increasing year by year. Coupled with the enhancement of people's awareness of environmental protection, pipe jacking technology will play an increasingly important position and role in the construction of underground pipelines in our country. The development of trenchless technology is bound to develop in the direction of scale, standardization and internationalization. [0003] With the support of my country's rapid economic growth, the development of pipe jacking technology has ushered in unprecedented opportunities, and pipe jackin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J15/447F16J15/16F16J15/18
Inventor 贾连辉范磊贺开伟王小涛
Owner CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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