A pipe jacking machine cutter head with two knives capable of scraping each other

Abstract

The invention relates to the technical field of pipe jacking machine cutterheads, in particular to a pipe jacking machine cutterhead with two knives that can scrape soil from each other, which includes: a cutter head, a partition, a rotary conveying device, a movable connecting rod, and a housing. The front of the cutter head includes: a left cutter and a right cutter. When the left cutter is in the initial (reset) state, its blade is at an angle of 45 degrees to the horizontal line; Horizontal lines form an angle of 0 degrees and 90 degrees respectively; the rotary conveying device includes: a through hole, a gear, and the through hole contacts the soil so that the cut soil is passed into the back from the through hole, and the gear is located at the front end of the rotary conveying device and contacts with the partition The movable connecting rod includes: a convex part, a movable part, a base, and a chute, and the convex part is on the surface of the base to prevent the movable connecting rod from rotating. Arranged at the rear, the front and rear arrangement of the two cutter heads can be changed through the adjustment of the movable link, and the front cutter can cut off the soil adhered to the rear cutter head, thereby reducing soil adhesion.

Description

technical field [0001] The invention relates to a cutter head of a pipe jacking machine, in particular to a cutter head of a pipe jacking machine with two knives capable of scraping soil from each other. Background technique [0002] At present, the cutter head of the pipe jacking machine is generally divided into roller cutter and cutter, which can be cut with the cutter head through the rotation of the turntable, and the cutter head can also be cut by self-rotation. shape, but they still have mud adhesion and clogging during the cutting process, which affects the cutting efficiency. [0003] (Patent Document) JP1994017918Y2 (authorization number) cutting tunnel and cutting tunnel construction method discloses a pipe jacking machine cutterhead for integral annular cutting soil cutting tunnel, however, there are following problems and shortcomings in this design: [0004] 1. The cutter head of the pipe jacking machine will adhere to the soil, which will affect the cutting e...

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Problems solved by technology

[0007] Therefore, the present invention is made in view of the above problems. The purpose of the present invention is to use the front and rear displacement of the blade to cut and scrape off the mud attached to the other blade to solve the problem that the blade attaches to the mud and reduces the cutting efficiency when cutting the cutter head.

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