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Device capable of regulating open ratio in shield driving machine

A technology of aperture ratio and shield machine, which is applied in mining equipment, earthwork drilling, tunnels, etc., can solve the problems affecting the structural strength and stiffness of the cutter head, the effect of adjusting the aperture ratio is not significant, and encroaching on the structural space of the cutter head. It achieves the effects of reasonable structure, wide geological adaptability, and wide adjustment range of opening ratio

Active Publication Date: 2007-07-11
CHINA RAILWAY TUNNEL GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the hydraulic cylinder and the valve that drive the valve in the device will occupy the structural space of the cutter head during installation, if there are many valves arranged, it will affect the strength and rigidity of the cutter head structure, if there are few valves arranged, the adjustment of the opening ratio The effect is not significant
At the same time, because the valve and the hydraulic cylinder are surrounded by muck, they are prone to jamming, so the reliability is poor

Method used

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  • Device capable of regulating open ratio in shield driving machine
  • Device capable of regulating open ratio in shield driving machine
  • Device capable of regulating open ratio in shield driving machine

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Experimental program
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Effect test

Embodiment

[0018] Embodiment: The device capable of adjusting the aperture ratio in this shield machine is located at the front end of the shield machine, including a cutterhead 1, a knife beam 8 located on the cutterhead 1, and a cutter 2 mounted on the cutter beam 8. There is a ballast discharge port 2a next to it; the cutter head 2 is fixedly connected with the cutter head support 3, and the cutter head support 3 is connected with the main bearing 12 and the central rotary joint 13, and the cutter head drive motor 17 is installed on it, and the rear part of the cutter head 1 is a shield The earth ballast chamber 4 of the structure machine has a valve 14 on its partition wall 15, and a rotating device 21 is housed on the valve 14. The earth ballast chamber 4 communicates with the screw conveyor 5, and a shield shell 7 is arranged outside the above-mentioned parts; There is a conical embedding hole 9, and a conical cylindrical embedding body 11 matching the size and shape of the embeddin...

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Abstract

The present invention relates to a device capable of regulating open rate in shield tunneling machine. It includes utter disk, shield shell, cutter beam positioned on the cutter disk, cutter mounted on the cutter beam, cutter disk support coupled with cutter disk and central rotation joint and cutter disk drive motor, early-pressure cell and spiral conveying machine communicated with said earth-pressure cell. Under the condition of ensuring construction quality said invention can raise construction efficiency.

Description

technical field [0001] The invention belongs to excavating equipment, in particular to equipment for excavating tunnels. Background technique [0002] The shield machines used in the domestic construction market, whether imported or domestic, cannot adjust the opening ratio. [0003] It is understood that the Canadian Lovat Company has designed a shield machine that can adjust the aperture ratio. It uses a valve-type aperture ratio adjustment device that moves parallel to the cutter head on the shield machine. Because the hydraulic cylinder and the valve that drive the valve in the device will occupy the structural space of the cutter head during installation, if there are many valves arranged, it will affect the strength and rigidity of the cutter head structure, if there are few valves arranged, the adjustment of the opening ratio The effect is not significant. Simultaneously because the valve and the hydraulic cylinder are surrounded by slag, it is easy to get stuck, so...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D9/093
Inventor 何於琏
Owner CHINA RAILWAY TUNNEL GROUP CO LTD
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