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Multistage-separation progressive shield cutter head

A shield cutter head, multi-stage separation technology, which is used in mining equipment, earthwork drilling, tunnels, etc. problem, to achieve the effect of easy control of earth pressure balance, small cutting amount and smooth flow

Inactive Publication Date: 2012-07-04
XIAN RUITE RAPID MFG ENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional panel-type and spoke-type cutterheads both adopt an integral structure. For tunnels with large radius, the radius of the cutterhead is large, the working environment of the cutterhead is poor, and the working efficiency and positioning accuracy of the shield machine are low; Each part bears a large load, and the working life of the parts is short

Method used

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  • Multistage-separation progressive shield cutter head
  • Multistage-separation progressive shield cutter head
  • Multistage-separation progressive shield cutter head

Examples

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Embodiment Construction

[0014] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0015] see figure 1 , figure 2 , the present invention comprises three stages of retractable stepped cutterheads, wherein the front end of the first stage cutterhead 47 is equipped with a drill bit 46 with a drill cutter 45, and the end face of the first stage cutterhead 47, that is, the face plate, adopts six spokes 14, and The six spokes 14 are respectively equipped with a first-level cutter hob 2 and a first-level scraper 3, and a first-level hob 10 and a first-level cutter 49 are installed on the outer edge of the first-level cutter 47, and the first-level cutter 47 passes through the bearing. And sealing device is installed on the primary rotary main shaft 44, and the primary power transmission device 42 that is fixedly connected with the primary cutter head is also installed on the primary rotary main shaft 44, the primary rotary main shaft 44 is conn...

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PUM

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Abstract

The invention discloses a multistage-separation progressive shield cutter head which comprises a plurality of flexible shield cutter heads. During the work, a central shield cutter head primary rotation shaft clutch is closed; a power main shaft drives a primary cutter head to rotate to cut rocks; and at the same time, a rear hydraulic device pushes a central cutter head to tunnel ahead. When a certain distance is tunneled, a primary clutch is separated; after partial components are reassembled, a secondary clutch is closed and a secondary cutter head starts to tunnel ahead; and repeatedly, the multistage cutter head progressive excavation is realized. Cutter heads of a shield tunneling machine of a multistage-separation progressive structure share the same power main shaft and are respectively provided with a central stirring device and an auger delivery chip removal device; and material bulks cut by the cutter heads are crushed and conveyed into a chip removal guiderail at the center of the shield machine.

Description

technical field [0001] The invention relates to a shield cutter head, in particular to a multi-stage separation progressive shield cutter head. Background technique [0002] Shield tunneling is a large-scale complete set of construction equipment specially used for excavating underground tunnels. It has the advantages of fast excavation, high quality, safety, economy, environmental protection and reduced labor intensity. It has been increasingly used in tunnel excavation. The wider the application. During the construction of shield tunneling, various strata will be encountered, ranging from silt, clay, sand to soft rock and hard rock. During the tunneling process, the cutter head, one of the key components of the shield machine, is subjected to complex forces and the working environment is harsh. The structure of the cutter head is related to the success or failure of the shield tunneling project, the excavation efficiency, the service life and the tool cost, so the design...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/08
Inventor 魏正英卢秉恒谭超王永信罗卫红
Owner XIAN RUITE RAPID MFG ENG
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