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tbm host and a kind of tbm

A host and main beam technology, applied in mining equipment, tunnels, earth-moving drilling, etc., can solve problems such as inconvenience of use and affect construction efficiency, and achieve the effect of ensuring transportation capacity, compact structure, and ensuring construction efficiency.

Active Publication Date: 2022-03-22
CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the TBM in the above patent documents needs to switch the conveying mode, and the screw conveyor and the sealing partition need to be disassembled when switching, which is inconvenient to use and affects the construction efficiency

Method used

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  • tbm host and a kind of tbm
  • tbm host and a kind of tbm
  • tbm host and a kind of tbm

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] Such as figure 1 As shown, the TBM main engine is the main engine of the open TBM, including the main beam 11 and the cutterhead 12. The main beam 11 is provided with the main drive 13, the steel arch installer 21, the bolter 22, and the propulsion propulsion in sequence from front to back. System 31 and rear support 35 .

[0070] Each part that is provided with on the main beam 11 is prior art, and wherein, main drive 13 is used for driving cutter head 12 to rotate, comprises fixed part 14 and rotating part 15, and fixed part 14 is fixed on the main beam 11, and rotating part 15 provides The cutter head 12 is fixed by bolts. The radially outer side of the main drive 13 is provided with a shield 16 for protecting the main drive 13 and stabilizing the main drive 13 and reducing vibration during TBM excavation. The steel arch installer 21 and the bolter rig 22 are installed on the front portion of the main beam 11 and can move forward and backward along the main beam 11...

Embodiment 2

[0078] The difference between this embodiment and Embodiment 1 is that in Embodiment 1, the feeding port of the screw conveyor 51 faces forward, the slag outlet of the slag collecting hopper 41 faces rearward, and the screw conveyor 51 The outer shell 52 of the slag collection hopper 41 is docked forward, and in this embodiment, the screw conveyor 51 is located below the slag collection hopper 41, the feed inlet faces upward, and the slag outlet of the slag collection hopper 41 faces downward. It overlaps with the front end portion of the screw shaft 53 of the screw conveyor 51 .

Embodiment 3

[0080] The difference between this embodiment and Embodiment 1 is that in Embodiment 1, the main girder 11 of the TBM main engine is formed by the shell 52 of the screw conveyor 51 as a whole; while in this embodiment, the rear end of the screw conveyor 51 Located before supporting the propulsion system 31 , only the first half of the main beam 11 of the TBM main engine is formed by the shell 52 of the screw conveyor 51 , and the second half has the same structure as the main beam 11 in the prior art. At this time, the muck can continue to be transported by the belt conveyor. Of course, in other embodiments, the length of the screw conveyor 51 can also be adjusted, at least so that the discharge port is located behind the main drive.

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Abstract

The invention relates to the muck transportation of TBM, in particular to a TBM main engine and a TBM. The TBM main engine includes: main beam, the front end of the main beam is provided with a main drive; the main drive is used to drive the cutter head to rotate, including a fixed part and a rotating part, the fixed part is fixed on the main beam, and the rotating part is used for fixing the cutter head; The slag hopper is fixedly arranged relative to the main beam, and is used to receive the slag discharged from the cutter head; the slag conveying device is used to convey the slag discharged from the slag collecting hopper; the slag conveying device is a screw conveyor, and the screw conveyor The feed inlet of the conveyor is docked on the slag outlet of the slag collecting hopper; at least the front end of the main beam is formed by the shell of the screw conveyor. The above-mentioned scheme can be easily adapted to different ground conditions, and is conducive to ensuring construction efficiency.

Description

technical field [0001] The invention relates to the muck transportation of TBM, in particular to a TBM main engine and a TBM. Background technique [0002] TBM (Tunnel Boring Machine, Hard Rock Tunnel Boring Machine) is a special construction machine for tunnel boring. It has the functions of excavating and cutting soil, conveying sludge, tunnel support, etc. , hydropower and other tunnel projects. The open-type TBM main engine usually adopts the main engine belt conveyor for slag removal, and the excavation efficiency is high in stable surrounding rock formations. However, when excavating in weak and fractured formations, due to unstable surrounding rocks and frequent occurrence of mud and water inrush, etc., here Under certain circumstances, the amount of slag discharged by the belt conveyor may be uncontrollable, resulting in the crushing of the belt conveyor of the main engine, the debris flow-like slag pouring into the cutter head, and the debris flow-like slag may eve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D9/12E21D9/087
CPCE21D9/124E21D9/087
Inventor 张文艳尹威华贺飞宁向可杨耀宗席杰范书恒付晨光
Owner CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD