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TBM cutter head and TBM

A technology for roadheaders and cutterheads, which is applied in mining equipment, earth-moving drilling, tunnels, etc., can solve problems such as difficulty and self-importance of abrasives.

Active Publication Date: 2021-08-20
CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the self-weight of the abrasive is relatively large, and it is difficult to stably transport the abrasive to the nozzle during the rock breaking process

Method used

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  • TBM cutter head and TBM
  • TBM cutter head and TBM
  • TBM cutter head and TBM

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The present invention provides a TBM cutter head, such as Figure 1-Figure 6 and Figure 8 As shown, the TBM cutterhead includes: cutterhead disc body 11, nozzle 12, water supply mechanism 40, annular abrasive pipe 20, and abrasive material supply device 30, nozzle 12, water supply mechanism 40 and annular abrasive pipe 20 are all installed on the knife Disc body 11; a plurality of annular abrasive tubes 20 are arranged inside and outside, for the abrasive device 30 to communicate with each annular abrasive tube 20, for supplying abrasives for each annular abrasive tube 20; the water supply mechanism 40 communicates with the nozzle 12 , used to supply high-pressure water to the nozzle 12; the nozzle 12 is arranged between the annular abrasive pipes 20, the nozzle 12 communicates with the annular abrasive pipe 20 on the outside through the outer abrasive passage 22, and the nozzle 12 communicates with the inner abrasive passage 21 and the inner ring Abrasive tube 20 com...

Embodiment 2

[0055] The present invention provides a TBM roadheader, comprising: a body of the roadheader and the above-mentioned TBM cutterhead, wherein the TBM cutterhead is installed on the body of the roadheader.

[0056] The TBM tunnel boring machine uses an abrasive jet to cut deep grooves into the rock surface. After the rock is cut into deep grooves, the rock is peeled off under the action of the hob on the TBM cutterhead. The deep groove can greatly reduce the difficulty of rock breaking by the hob and play an auxiliary role in rock breaking. Moreover, during the rotation of the TBM cutter head, no matter where the nozzle 12 is at any position relative to the center of the cutter head, it can always be guaranteed that there is at least one annular abrasive tube 20 higher than / not lower than the nozzle 12, thereby ensuring at least one annular abrasive tube 20. The abrasive in the abrasive pipe 20 can flow smoothly to the nozzles 12, ensuring that the abrasive is continuously supp...

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Abstract

The invention provides a TBM (Tunnel Boring Machine) cutter head and a TBM. The TBM cutterhead comprises a cutter head body, a nozzle mounted on the cutter head body, a water supply mechanism mounted on the cutter head body, a plurality of annular material grinding pipes which are sleeved inside and outside and are mounted on the cutter head body, and a material grinding supply device which communicates with each annular grinding material pipe and is used for supplying grinding materials to each annular grinding material pipe, wherein the water supply mechanism communicates with a nozzle and is used for supplying high-pressure water to the nozzle; and the nozzle is arranged between the annular material grinding pipes, and communicates with the annular material grinding pipes on the outer side of the nozzle through outer material grinding channels, and the nozzle communicates with the annular material grinding pipes on the inner side of the nozzle through inner material grinding channels. According to the invention, the technical problem that an abrasive is difficult to be stably conveyed to the nozzle in the rock breaking process is solved.

Description

technical field [0001] The invention relates to the technical field of tunneling equipment, in particular to a TBM cutterhead and a TBM roadheader. Background technique [0002] Most of the high-pressure water-assisted rock-breaking systems carried by TBM (Tunnel Boring Machine) are pure water jets, which require high jet pressure, poor system stability, and relatively low rock-breaking efficiency. Adding abrasives to the jet and using the abrasive jet to break rock can improve the rock-breaking efficiency of TBM. However, the weight of the abrasive is relatively large, and it is difficult to stably transport the abrasive to the nozzle during the rock breaking process. Contents of the invention [0003] The purpose of the present invention is to provide a TBM cutter head and a TBM tunneling machine, so as to alleviate the technical problem that it is difficult to stably transport abrasives to nozzles during the rock breaking process. [0004] Above-mentioned purpose of t...

Claims

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Application Information

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IPC IPC(8): E21D9/08
CPCE21D9/08
Inventor 贺飞叶蕾齐志冲
Owner CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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