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CN-224228675-U - Cutter head flushing device of shield machine and shield machine

CN224228675UCN 224228675 UCN224228675 UCN 224228675UCN-224228675-U

Abstract

The utility model relates to the field of shield machines, in particular to a shield machine cutterhead flushing device and a shield machine, wherein the flushing device comprises a mounting frame, a flushing pipeline and a nozzle, wherein the mounting frame is fixed on a bulkhead of a person cabin, which is close to a mud water cabin, the flushing pipeline is arranged on the mounting frame and extends from the person cabin to the mud water cabin, the nozzle is arranged at the tail end of the flushing pipeline, the nozzle extends into a foam pipeline and faces the cutterhead, and the foam pipeline is provided with a plurality of open holes. The utility model provides a shield tunneling machine cutterhead flushing device, which is characterized in that a mounting frame is additionally arranged in a cabin, so that flushing pipelines can be conveniently and directly led into a slurry cabin from the cabin, the cutterhead is flushed by utilizing the original foam pipeline openings of the slurry cabin, mud cakes of the shield tunneling machine cutterhead can be effectively flushed on the basis of not changing the original structure of the shield tunneling machine as much as possible, and the construction safety and progress are improved.

Inventors

  • HE SHUAI
  • LIANG QIAOFENG
  • LIN SHIHAO
  • WANG CONG
  • Tian Dengxiong
  • Liao Huaqiang
  • CHEN JUNSONG
  • ZHANG HAIBO
  • GUO DONGSHENG
  • WU JIANG
  • LONG JIAN

Assignees

  • 中铁二局集团有限公司

Dates

Publication Date
20260512
Application Date
20250704

Claims (10)

  1. 1. The utility model provides a shield constructs quick-witted blade disc washing device which characterized in that includes: the mounting frame (5) is fixed on the bulkhead of the personnel cabin (3) close to the mud water cabin (2); a flushing pipeline (6) which is arranged on the mounting frame (5) and extends from the cabin (3) to the mud water cabin (2); The nozzle (7) is arranged at the tail end of the flushing pipeline (6), the nozzle (7) stretches into the foam pipeline (4) and faces the cutter head (1), and the foam pipeline (4) is provided with a plurality of open holes (41).
  2. 2. A shield machine cutterhead flushing device according to claim 1, characterized in that the shape of the nozzle (7) is trumpet-shaped.
  3. 3. The shield tunneling machine cutterhead flushing device according to claim 1, wherein the flushing pressure of the flushing pipeline (6) is greater than or equal to 6bar.
  4. 4. The shield tunneling machine cutterhead flushing device according to claim 1, wherein the foam pipe (4) is provided with a plurality of the open pores (41).
  5. 5. The shield tunneling machine cutterhead flushing device according to claim 4, wherein each of the openings (41) is arranged towards the cutterhead (1).
  6. 6. The shield tunneling machine cutterhead flushing device according to claim 1, wherein the mounting frame (5) is detachably and fixedly connected to the bulkhead of the cabin (3).
  7. 7. The shield tunneling machine cutterhead flushing device according to claim 6, wherein the mounting frame (5) is bolted to the bulkhead of the nacelle (3).
  8. 8. The shield tunneling machine cutterhead flushing device according to any one of claims 1-7, wherein the flushing pipeline (6) is connected with a water tank.
  9. 9. A shield tunneling machine comprising a cutterhead (1), a slurry tank (2) and a personnel cabin (3), characterized by further comprising a shield tunneling machine cutterhead flushing device according to any one of claims 1-8.
  10. 10. Shield machine according to claim 9, characterized in that the mud hold (2) is provided with a foam pipe (4), the foam pipe (4) is provided with a number of openings (41), and the nozzle (7) extends into the foam pipe (4) and towards the cutterhead (1).

Description

Cutter head flushing device of shield machine and shield machine Technical Field The utility model relates to the field of shield machines, in particular to a shield machine cutterhead flushing device and a shield machine. Background The shield tunneling machine cutterhead is easy to produce mud cakes during operation, and the main reason for producing mud cakes is that fine particles of high-viscosity stratum (such as clay and powdery clay) are accumulated on the surface of the cutterhead in the tunneling process, and in addition, the cutterhead has low opening rate, low propelling speed or improper use of additives, so that the slag cannot be discharged in time, and water is extruded to form hard agglomerates. The damage caused by mud cakes comprises the steps of reducing the tunneling efficiency, increasing the cutter abrasion, increasing the equipment load, blocking a slag discharging system, even causing the earth surface sedimentation or tunnel axis deviation, and seriously affecting the construction safety and progress. Disclosure of utility model The utility model aims to overcome the defects in the prior art, and provides a shield machine cutterhead flushing device and a shield machine, which can effectively flush mud cakes of the shield machine cutterhead on the basis of not changing the original structure of the shield machine as much as possible, and improve construction safety and progress. In a first aspect, the present utility model provides a shield tunneling machine cutterhead flushing device, comprising: The installation frame is fixed on the bulkhead of the person cabin, which is close to the mud water cabin; The flushing pipeline is arranged on the mounting frame and extends from the cabin to the muddy water cabin; the nozzle is arranged at the tail end of the flushing pipeline, the nozzle stretches into the foam pipeline and faces the cutterhead, and the foam pipeline is provided with a plurality of open holes. Preferably, the nozzle is horn-shaped. Preferably, the flushing pressure of the flushing line is greater than or equal to 6bar. Preferably, the foam duct is provided with a plurality of said open cells. Preferably, each of the openings is disposed toward the cutterhead. Preferably, the mounting frame is detachably and fixedly connected to the bulkhead of the cabin. Preferably, the mounting frame is bolted to the bulkhead of the cabin. Preferably, the flushing line is connected to a water tank. In a second aspect, the utility model provides a shield machine, which comprises a cutter head, a mud water cabin, a human cabin and any one of the cutter head flushing devices of the shield machine. Preferably, the mud water cabin is provided with a foam pipe, the foam pipe is provided with a plurality of open pores, and the nozzle extends into the foam pipe and faces the cutterhead. Compared with the prior art, the utility model has the beneficial effects that: 1. The utility model provides a shield tunneling machine cutterhead flushing device, which is characterized in that a mounting frame is additionally arranged in a cabin, so that flushing pipelines can be conveniently and directly led into a slurry cabin from the cabin, the cutterhead is flushed by utilizing the original foam pipeline openings of the slurry cabin, mud cakes of the shield tunneling machine cutterhead can be effectively flushed on the basis of not changing the original structure of the shield tunneling machine as much as possible, and the construction safety and progress are improved. 2. The utility model provides a shield machine, which can effectively wash out mud cakes of a cutterhead after the cutterhead washing device of the shield machine is additionally arranged, so that the construction safety and the construction progress are improved. Drawings Fig. 1 is an installation schematic diagram of a shield tunneling machine cutterhead flushing device. Fig. 2 is a sectional view of a cutter head flushing device of a shield tunneling machine. The marks in the figure: The device comprises a cutter head 1, a mud water tank 2, a human cabin 3, a foam pipeline 4, a 41-opening hole, a 5-mounting frame, a 6-flushing pipeline and a 7-nozzle. Detailed Description The present utility model will be described in further detail with reference to specific examples. It should not be construed that the scope of the above subject matter of the present utility model is limited to the following embodiments, and all techniques realized based on the present utility model are within the scope of the present utility model. Unless specifically stated otherwise, in the description of specific embodiments of the present utility model, terms of expression of orientation or positional relationship indicated by "upper", "lower", "left", "right", "center", "inner", "outer", etc., are all expressions based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the inventive produ