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Fishtail center cutter for shield machine

A fishtail knife and shield machine technology, which is applied in mining equipment, earthwork drilling, tunnels, etc., can solve the problem of not being able to arrange cutting knives, so as to increase soil fluidity, reduce construction time, and save construction costs. Effect

Inactive Publication Date: 2013-04-24
SHANDONG TECHGONG GEOTECHN ENG EQUIP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Solve the problem that the cutter cannot be arranged in the center of the cutter head in soft soil stratum, solve the cutting problem of the central part of the soil, improve the fluidity of the cutting soil, improve the overall tunneling effect of the shield, save construction costs, and improve construction efficiency

Method used

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  • Fishtail center cutter for shield machine

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Embodiment Construction

[0008] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0009] Such as figure 1 , 2 shown in . A central fishtail knife for a shield machine. The whole knife device is composed of a knife body (1), a knife (2), a knife (3), a knife (4) and a knife (5). Welding Welding Form The cutting tool (2), cutting tool (3), cutting tool (4) and cutting tool (5) are respectively fixed and welded according to the designed relevant positions, and assembled and welded into a whole cutting tool.

[0010] The working principle of the cutting tool is: when the shield machine is excavating in the soft soil layer, the cutting knife cannot be arranged in the center of the cutter head. Due to the problem that the cutter cannot be arranged in the center of the disk, by using the tapered characteristics of the cutter, the first cutter on both sides of the cutter body can improve the fluidity of the cutting soil and greatly impro...

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Abstract

The invention discloses a fishtail center cutter for a shield machine and belongs to the field of the shield machine of tunnel construction. The center cutter is characterized in that a cutter (2), a cutter (3), a cutter (4) and a cutter (5) are welded to a cutter body (1), the cutter (2), the cutter (3) and the cutter (4) are located on two sides of the cutter body, the cutter (5) is distributed on the upper portion of the cutter body (1), the cutter (2), the cutter (3) and the cutter (4) are reinforcing advanced cutters and the cutter (5) is a reinforcing cutting knife. When the shield machine runs in the soft land layer, the cutting knife cannot be arranged at the central position of a knife disk, the cutters are used for improving the chipping and stirring effect of the soil of the central position of the excavated surface, the problem that the cutter knife cannot be arranged at the central position of the knife disk of the soft land layer is solved, the chipping problem of the central position soil can be solved, the fluidity of chipped soil can be improved, and the whole tunneling effect of the shield machine can be improved greatly. The center cutter can save the construction cost, save the construction time and improve the construction efficiency and can be widely used in the shield machine industry.

Description

technical field [0001] The invention relates to shield machine parts for tunnel construction, in particular to reasonably arranging the knives of the shield machine in the overall layout of the cutter head, giving full play to the usability of the cutter, solving the problem that the cutter cannot be arranged in the center of the cutter head, and improving excavation The cutting and mixing effect of the soil in the center of the face ensures the smooth excavation of the shield machine. Background technique [0002] The shield machine is a special construction machine for tunneling. The front portion of existing shield machine mainly contains: the cutter head of the front, the front shield kerf ring of the cutter head rear portion and the soil bin etc. behind it again. Scrapers, hobs, leading knives and replaceable leading knives for hobs are installed on the cutter head, and the openings on the cutter head form the slag inlet. When working, the cutterhead rotates, and driv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/08
Inventor 刘玉海王良张学强刘继岩门光环李乾斌李文峰倪景文
Owner SHANDONG TECHGONG GEOTECHN ENG EQUIP CO LTD
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