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Spoke-type shield cutter disk

A technology of shield cutter head and cutter head, which is used in mining equipment, earth-moving drilling, tunnels, etc., can solve the problems of the shield machine being unable to advance normally, the shield cutter head being worn out, and the hob being unable to be installed, so as to improve the construction The ability to break ground, reduce construction resistance, and avoid the effect of construction progress

Active Publication Date: 2014-08-27
CHINA RAILWAY 15TH CONSTR BUREAU GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the hob cannot be installed, and the construction resistance is very large during construction in the composite stratum, and the safety of changing the tool in the middle is poor, and the soil needs to be reinforced, which is expensive
[0003] In addition, during the construction of the existing shield cutter head in the tunnel composite stratum, the side scraper often falls off abnormally, the stirring rod tilts or even falls, and the back of the shield cutter head wears seriously, which makes the shield machine unable to advance normally. Seriously affected the progress of the project

Method used

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  • Spoke-type shield cutter disk
  • Spoke-type shield cutter disk
  • Spoke-type shield cutter disk

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Embodiment Construction

[0022] refer to Figure 1 to Figure 3 , the present invention provides a spoke-type shield cutterhead, comprising a cutterhead body 1 and 16 cutterhead webs arranged on the periphery of the cutterhead body 1 and spaced apart from each other to form 16 first through slots 2, The cutterhead main body 1 and each cutterhead web are fixedly connected to form a disc-shaped cutterhead 4 , and a connecting rib 31 connecting each cutterhead web is provided through the first through groove 2 . The outer circular surface of the cutterhead 4 is provided with an annular plate 32 connecting each cutterhead web 3 , and a wear-resistant plate 33 is welded on the back of the cutterhead 4 on the annular plate 32 . The main body of the cutterhead 1 is square as a whole, and is provided with four cutter mounting ribs which intersect each other at the center of the cutter head main body 1 and form an angle of 45° with each other. The first installation rib and a second installation rib with sever...

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Abstract

The invention discloses a spoke-type shield cutter disk. The spoke-type shield cutter disk comprises a cutter disk body and a plurality of cutter disk spoke plates which are arranged on the periphery of the cutter disk body and are separated from one another so as to form a plurality of first through grooves. The cutter disk body is fixedly connected with all the cutter disk spoke plates to form the disk-shaped cutter disk. Four cutter installation ribs which intersect mutually at the central position of the cutter disk body and form 45-degree included angles are arranged on the cutter disk body, the cutter installation ribs comprise three first installation ribs provided with a plurality of hobs and one second installation rib provided with a plurality of cutters, second through grooves are formed in the positions, located on the two sides of the second installation rib, of the cutter disk body, the cutter disk spoke plates comprise the first spoke plates provided with a plurality of hobs and the second spoke plates provided with a plurality of cutters, and the first spoke plates and the second spoke plates are arranged alternately all around the cutter disk body. According to the spoke-type shield cutter disk, through the cutters and the hobs reasonably arranged on the cutter disk body and the cutter disk spoke plates, the construction ground breaking capacity is improved and construction resistance during construction in a tunnel compound stratum is reduced on the basis that smooth flow of soil and sand is guaranteed.

Description

technical field [0001] The invention is used in the field of tunnel construction, and in particular relates to a spoke type shield cutter head. Background technique [0002] With China's high-speed urbanization process, urban rail transit and related industries have developed rapidly in China, and shield construction has been widely used throughout the country. Due to China's vast land resources, there are great differences in geology and hydrology in various regions; in order to complete the national For shield construction projects in various places, shield designers have designed various forms of shield cutterheads. Existing shield cutterheads include spoke-type cutterheads and panel-type cutterheads. The panel-type cutterheads are safe and reliable when changing tools midway, but they are easy to stick and block when the excavated soil enters the soil bin. Easy to form mud cake. The spoke-type cutter head has only a few spokes, and there are stirring blades behind the ...

Claims

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Application Information

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IPC IPC(8): E21D9/08
Inventor 吕善乔水旺王红路彭元栋李文飞田燕武
Owner CHINA RAILWAY 15TH CONSTR BUREAU GRP
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