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Radial type shield body torsionproof device

A articulated, anti-twist technology, applied in mining equipment, earthwork drilling, tunnels, etc., can solve problems such as deformation of the shield tail connection ring, shield tail 5 out of round, etc., to achieve the effect of ensuring smooth progress

Active Publication Date: 2014-03-12
CHINA RAILWAY CONSTR HEAVY IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This will easily cause the deformation of the shield tail connection ring 9, causing the shield tail 5 to lose its round shape

Method used

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  • Radial type shield body torsionproof device
  • Radial type shield body torsionproof device
  • Radial type shield body torsionproof device

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Embodiment Construction

[0023] The technical solution of the present invention will be described below in conjunction with the accompanying drawings.

[0024] Figure 4 Shown is an anti-twist device 50 according to the invention, which is intended to be installed between the center shield 1 and the shield tail 5 of the articulated shield body to prevent mutual rotation between the center shield 1 and the shield tail 5 .

[0025] As shown in the figure, the center shield 1 of the articulated shield body includes a center shield rear support ring plate 6 and a center shield support ring 10 . A central shield hinge seat 2 is arranged on the central shield rear supporting ring plate 6 . The shield tail 5 includes a shield tail connecting ring 9 and a shield tail hinge seat 4 installed on the shield tail connecting ring 9 . A hinged oil cylinder 3 is installed between the hinged seat 2 of the central shield and the hinged seat 4 of the shield tail, so that the central shield 1 and the shield tail 5 are ...

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Abstract

A radial type shield body torsionproof device is provided according to the invention, wherein the radial type shield body comprises a middle shield and a shield tail connected with each other through an articulated hydrocylinder. The middle shield comprises a middle shield support ring, a middle shield back support ring board and a middle shield articulated base arranged on the middle shield back support ring board. The shield tail comprises a shield tail connecting ring and a shield tail articulated base arranged on the shield tail connecting ring. The articulated hydrocylinder is connected between the middle shield articulated base and the shield tail articulated base. The torsionproof device comprises a torsionproof frame and a U-shaped baffle board, wherein the torsionproof frame is arranged on the middle shield support ring and the middle shield back support ring board and is arranged inside the articulated hydrocylinder radially with torsionproof ends, and the U-shaped baffle board is formed on the shield tail articulated base in a one-piece manner so that the torsionproof ends are contained in the inner cavity of the baffle board. Therefore, the torsionproof frame does not occupy the mounting position of the articulated hydrocylinder so that more articulated hydrocylinders can be arranged between the middle shield and the shield tail, and greater dragging force for the shield tail is provided to ensure successful shield construction.

Description

technical field [0001] The invention relates to a shield machine used for tunnel engineering construction, and more particularly relates to an articulated shield body anti-twisting device used for the shield machine. Background technique [0002] In recent years, shield construction has been widely used in the construction of underground tunnels due to its small impact on the ground and underground environment, fast excavation speed, and small surface settlement. There are often curved sections in the tunnel route design, which puts forward higher requirements on the performance of the shield machine. The articulated shield has high sensitivity and can adapt to a small tunnel turning radius, so it is more and more used in shield design. [0003] figure 1 A structure of a prior art articulated shield is shown. As shown in the figure, the middle shield hinge seat 2 is welded on the middle shield 1 , and the shield tail hinge seat 4 is welded on the shield tail 5 . The hing...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D9/06
Inventor 刘飞香程永亮郑大桥张社军张帅坤
Owner CHINA RAILWAY CONSTR HEAVY IND
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