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Shield tunneling machine cutter with cushion device

A buffer device and shield machine technology, which is applied in mining equipment, earthwork drilling, tunnels, etc., can solve the problems of affecting the flow of muck, large cutters, and increased costs, so as to reduce the probability of cutter chipping and structure Simple, easy-to-make effects

Pending Publication Date: 2019-11-08
XCMG KAIGONG HEAVY IND NANJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method will make the cutter big and heavy, and the cost will increase a lot, and the arrangement of this kind of cutter in the limited space of the central area of ​​the cutter head will reduce the opening of the central area, affect the flow of muck, and easily form mud cakes ( Mud cake is also a major problem affecting the cutting effect of the cutter head)

Method used

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  • Shield tunneling machine cutter with cushion device
  • Shield tunneling machine cutter with cushion device
  • Shield tunneling machine cutter with cushion device

Examples

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Embodiment Construction

[0022] A preferred embodiment of the present invention will be described in detail below in conjunction with the accompanying drawings. However, the scope of protection of the present invention is not limited to the following examples, that is, any simple equivalent changes and modifications made based on the patent scope of the present invention and the content of the description are still within the scope of the patent of the present invention.

[0023] refer to Figure 1-3 , is a shield machine cutter with a buffer device according to the present invention, including a cutter seat 3 fixed on the spoke 6 of the shield machine cutter head and a cutter 1 installed on the cutter seat, the The cutting knife is provided with a cutting edge 11, and the cutting knife is positioned at the side of the cutting edge that is close to the advancing direction of the cutting knife and is connected to the cutter seat by rotation. There is a gap between the other side of the cutter and the ...

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Abstract

The invention discloses a shield tunneling machine cutter with a cushion device. The shield tunneling machine cutter comprises a cutter seat fixed on a spoke of a shield tunneling machine cutter disc,and the cutter body installed on the cutter disc, the cutter is provided with a cutter blade, the side edge, close to the heading direction of the cutter, ofthe cutter blade of the cutter is rotatably connected with the cutter seat, the other side edge, the cutter blade away from the heading direction of the cutter, of the cutter and the cutter seat are provided with a gap, and a cushion device is arranged between the other side edge of the cutter and the cutter seat. According to the shield tunneling machine cutter, the cushion device is arranged in the cutter seat, after the blade of the cutter is impacted during working, the cutter can be driven to be rotated around a pin roll, a cushion spring in the cushion device is compressed, time of cutting a hard object by the blade is prolongedin the process, the cushion effect is exerted, the probability of tipping of the blade is reduced, the capability of impact resistance of the cutter is greatly promoted, and the problem that due to the damage of the cutter disc caused by the tipping of a cutter tool, excavation of a shield tunneling machine is affected is solved.

Description

technical field [0001] The invention belongs to the technical field of shield machine equipment for tunnel excavation, and in particular relates to a shield machine cutter with a buffer device. Background technique [0002] When excavating tunnels with the cutter head of the shield machine, it is often encountered that the geology is uneven or the soil layer contains hard cores such as stones. When the cutter excavates in this stratum, it will be impacted to varying degrees. The cutting and scraping principle is used to excavate the soil, and there is sliding friction between the blade and the soil, which requires the blade to be able to keep the blade sharp and have good wear resistance, so the blade of the cutter is usually made of hard alloy. The advantage of cemented carbide is that it has high hardness and good wear resistance. The disadvantage is that it is afraid of being impacted. After being impacted, it is prone to chipping or even breaking, making the tool lose th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/08
CPCE21D9/0875
Inventor 苏延奇徐昊朗丁少华
Owner XCMG KAIGONG HEAVY IND NANJING
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