Cutterhead based on spatio-temporal arrangement of oblique angle high-pressure water jet

Abstract

The invention discloses a cutter head based on the space-time arrangement of high-pressure water jets with oblique cutting angles. It includes No. 1 high-pressure water nozzle, mechanical hob, No. 2 high-pressure water nozzle and mechanical scraper; No. 1 high-pressure water nozzle and No. The high-pressure water nozzles at the first position are arranged in opposite directions; when the high-pressure water nozzles at the second position spray the rock mass, the incident angle is 45 degrees, and the incident point is the midpoint of the hypotenuse of the rock mass; the high-pressure water nozzles at the first position, the mechanical hob, and the second The high-pressure water nozzle and mechanical scraper cut grooves according to the water jet sprayed by the high-pressure water nozzle of the first position, the mechanical hob rolls down the trapezoidal rock mass, and the high-pressure water jet sprayed by the high-pressure water nozzle of the second position divides the trapezoidal rock convex block And the rock-breaking mode installation arrangement of mechanical scraper cutting and removing rock mass. The invention has the advantages of reducing the application ratio of mechanical energy, improving the crushing efficiency of rocks, effectively reducing the mechanical wear of cutters, and reducing the operating temperature of the working face.

Description

technical field [0001] The invention relates to the field of tunnels and underground engineering, in particular to the application of high-pressure water jet rock-breaking technology in the field of TBM tunnel construction, more specifically, it is a cutter head based on the space-time arrangement of high-pressure water jets at oblique cutting angles. Background technique [0002] Tunnel boring machine (TBM) has excellent features such as safety, environmental protection, and high efficiency, and is widely used in many tunnel construction projects such as hydraulic tunnels, mine roadways, traffic tunnels, and pipeline defense. However, since the development of TBM, it has changed from the traditional hand-held, mechanical, closed-chest and the current intelligent control integrated TBM equipment. The rock-breaking method of its mechanical hob rolling and crushing rock has not undergone fundamental changes. The original TBM mechanical cutter breaks the rock, and the rock ridg...

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