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Retracting-in type gap-variable cutterhead of slurry shield tunneling machine and slurry shield tunneling machine

A technology of shield machine and cutterhead, which is applied in mining equipment, mining equipment, earthwork drilling, etc., can solve the problem of heat, wear and cutting efficiency and reliability of cutterheads and tools that affect the fluidity of muck, consume a lot of manpower and material resources, and construction. Time, operator danger and other issues, to achieve the effect of stable operation, good effect and large adjustment range

Pending Publication Date: 2021-09-28
CHINA RAILWAY 15TH CONSTR BUREAU GRP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The opening of the cutter head directly affects the fluidity of the muck, the heat generation, wear, cutting efficiency and reliability of the cutter head cutter. The surrounding rock conditions continue to excavate, but each time the cutter head is replaced, it will consume a lot of manpower, material resources and construction time, and the replacement of the cutter under pressure is dangerous to the operator

Method used

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  • Retracting-in type gap-variable cutterhead of slurry shield tunneling machine and slurry shield tunneling machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A mud water shield structure can be folded into a variable void, such as figure 1 As shown, including the blade body 1 and the spacer 12 disposed at the opening of the blade body 1, the spacer 12 is extended or subjected to the cutter disk body 1.

[0024] More specifically:

[0025] The cutter disk body 1 has a plurality of sector portions 11 along the circumferential distribution, and one side of each sector portion 11 is an opening side 111, and the spacer 12 is provided with a plurality of, which can be rotatably rotatably protruded from each sector portion 11. Or zap the sector portion 11. Preferably, the vertices of the plurality of sector portions 11 intersects the center of the cutter disk body 1, and the opening side 111 of each sector portion 11 is provided with a cavity for receiving the spacer 12, and the plurality of isolation sheets 12 are fanned, vertices intersect The center of the blade body 1 is rotated around the center of the blade body 1. The thickness ...

Embodiment 2

[0029] A mud water shield, including the cutter disc of Example 1. The cutter is set to the front of the shield machine.

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PUM

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Abstract

The invention relates to a retracting-in type gap-variable cutterhead of a slurry shield tunneling machine and the slurry shield tunneling machine. The cutterhead comprises a cutterhead body (1) and spacers (12) arranged at the opening edges of the cutterhead body (1), and the spacers (12) extend out of or retract into the cutterhead body (1) through rotation. Compared with the prior art, the cutterhead has the advantages that through the arrangement of the spacers and a central control system, the overall aperture ratio of the cutterhead of the shield tunneling machine can be rapidly, simply, conveniently and accurately changed, the overall replacement frequency of the cutterhead of the shield tunneling machine is effectively reduced, and the construction safety and efficiency are improved.

Description

Technical field [0001] The present invention belongs to geological engineering, geotechnical engineering, tunnel and underground construction projects, and the field of tunnel excavation involves a mud water shield protruding machine. Background technique [0002] Shield machine is a tunneling machine using a shield method. The construction method of the shield is the "shield" (referring to the support tubes) of the tunnel while the excavator is built. During the construction process, there is no large area of ​​demolition on the ground. Do not block traffic, no noise in construction, the ground does not settle, does not affect the normal life of the resident, so the shield machine has been widely used in subway, railways, roads, municipal, hydropower, etc. tunnel Engineering. [0003] The cutter is the core component of the shield, and the cutter disk opening rate (opening rate) generally refers to the ratio of the opening area of ​​the cutter disk and the total area of ​​the cu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/087E21D9/00E21F17/00
CPCE21D9/087E21D9/003E21F17/00
Inventor 刘中欣王东欣张庆军杨云牛得草王建秀李胡博强张玉龙焦磊李桂杰刘龙飞
Owner CHINA RAILWAY 15TH CONSTR BUREAU GRP