All-cross-section cutting rectangular pipe-pushing machine cutting mechanism

A technology of cutting mechanism and pipe jacking machine, which is applied in the direction of drilling without stripping topsoil, etc., can solve the problems of low reliability, low ability to get out of trouble, and difficult construction, so as to reduce the incidence of accidents, improve the ability to get out of trouble, and reduce manufacturing. effect of risk

Inactive Publication Date: 2013-11-27
ZHENJIANG ANDA COAL MINE SPECIAL EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its disadvantages are: difficult process realization, low product reliability, insufficient soil mixing, and low transmission efficiency
Its defects are: complex structure, difficult sealing, low transmission efficiency
Its defects are: non-full section cutt

Method used

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  • All-cross-section cutting rectangular pipe-pushing machine cutting mechanism
  • All-cross-section cutting rectangular pipe-pushing machine cutting mechanism

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0022] As shown in the figure, the cutting mechanism of the full-face cutting rectangular pipe jacking machine includes a mounting seat 1. The front end of the mounting seat is equipped with four cutter heads 2 with cutting surfaces on the same plane; the centers of the rotating shafts 3 of the four cutter heads are respectively It is located on the four vertices of a square, and is driven by the same spindle 4 located in the center of the mounting seat to rotate synchronously and at a constant speed; the end profile of the cutter head 2 is a long shape with a dimension in the length direction greater than that in the width direction. The edges of the cutter head 2 are arranged There is a cutting edge 5; the length of each cutter head 2 is perpendicular to the length of the adjacent cutter head, and the maximum cutting radius of each cutter head 2 overlaps with the maximum cutting radius of the adjacent cutter head, There is no interference when the four cutter heads rotate sync...

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Abstract

The invention relates to an all-cross-section cutting rectangular pipe-pushing machine cutting mechanism used in rectangular pipe-pushing devices used in non-excavation engineering. The mechanism comprises an installing seat, four cutterheads with cutting surfaces located on the same plane are installed on the front end face of the installing seat, centers of rotating shafts of the four cutterheads are respectively located on four vertexes of a square and are driven by an identical spindle located at the center of the installing seat to synchronously rotate at a uniform speed, the end face contour of every cutterhead is a long shape with the dimension in the length direction larger than the dimension in the width direction, cutting blades are arranged on the edge of the cutterheads, the length direction of every cutterhead is perpendicular to the length direction of the cutterheads adjacent to the cutterhead, the maximum cutting radius of every cutterhead and the maximum cutting radius of the adjacent cutterhead have an overlapped part, and the four cutterheads do not interfere with each other when rotating synchronously at the uniform speed. Rectangular all-cross-section cutting can be achieved, the all-cross-section cutting rectangular pipe-pushing machine cutting mechanism is high in difficulty overcoming capability, simple in structure and high in reliability, the technical requirements for constructors are low, and soil mass is mixed fully.

Description

technical field [0001] The invention relates to underground engineering construction equipment, in particular to a cutting mechanism for a full-section cutting rectangular pipe jacking machine used in rectangular pipe jacking equipment used in trenchless engineering. Background technique [0002] Trenchless underground pipe jacking construction is a pipeline laying method that replaces manual excavation. It only needs to excavate working wells at the starting point and end point of pipeline laying, and use pipe jacking equipment to use hydraulic cylinders to directly excavate in the underground soil layer. Pipe connection. [0003] Rectangular pipe jacking is a kind of pipe jacking construction, which is mainly used in the non-excavation construction of subway pedestrian passages, high-voltage cables and other projects. It uses rectangular pipes for pipeline laying, which has the advantages of large effective cross-sectional area, wide adaptable size range, and high space u...

Claims

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Application Information

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IPC IPC(8): E21B7/26
Inventor 万湉杜邦和甘月萍罗卫健
Owner ZHENJIANG ANDA COAL MINE SPECIAL EQUIP
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