Arrangement method of hobs for directly cutting reinforcements in concrete in shield tunneling machine

A layout method and shield machine technology, applied in the field of shield machines, can solve the problems of short steel bars and long steel bars stuck to the cutterhead screw conveyor, etc., so as to avoid being stuck, good economic and social benefits, and ensure normal operation The effect of excavation
CN106401595AActive Publication Date: 2017-02-15CHINA RAILWAY TUNNEL GROUP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA RAILWAY TUNNEL GROUP CO LTD
Publication Date
2017-02-15

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Abstract

The invention discloses an arrangement method of hobs for directly cutting reinforcements in concrete in a shield tunneling machine. A cutter head of the shield tunneling machine is fixedly provided with multiple double-edge hobs and multiple single-edge hobs capable of freely rotating; edges of one part of the multiple double-edge hobs are positioned in a first plane; edges of the other part of the multiple double-edge hobs are positioned in a second plane and / or a third plane; the distance from the second plane to the surface of the cutter head is larger than the distance from the first plane to the surface of the cutter head; the distance from the third plane to the surface of the cutter head is larger than the distance from the second plane to the surface of the cutter head; edges of one part of the multiple single-edge hobs are positioned in the first plane; edges of the other part of the multiple single-edge hobs are positioned in the second plane and / or the third plane; all the edges of the double-edge hobs and the single-edge hobs are numbered in sequence; and when all the edges are arranged as a straight line, tips of the edges are arranged in a saw tooth form.
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Description

technical field

[0001] The invention belongs to the field of shield machines, and in particular relates to a method for arranging a hob in a shield machine for cutting steel bars in concrete. Background technique

[0002] The shield machine drives the cutter head to rotate through the motor, and at the same time uses the shield machine to push the cylinder to push the shield machine forward. With the advance of the push cylinder, the cutter head continues to rotate, and the cut muck fills the soil bin. At this time, the screw conveyor is started to discharge the cut slag to the belt conveyor. With the development of underground projects at home and abroad, the subway network is becoming more and more dense, the number of tunnels is increasing, and the use of shield machines is becoming more and more extensive. In the process of using shield machines, various underground obstacles have to be crossed. Such as underground pipelines, foundation piles, underground diaphragm wall...

Claims

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