Mud cake formation prevention steel plate for shield cutter head and simulation experiment table for characteristic test of mud cake formation prevention steel plate

A technology of characteristic testing and simulation experiments, which is applied in mining equipment, tunnels, earthwork drilling and mining, etc., can solve problems affecting mud outflow and working status, and achieve the effects of reducing attachment, improving changing space, and ensuring costs

Pending Publication Date: 2022-07-22
CHINA RAILWAY TUNNEL GROUP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problem in the prior art that the mud cake on the shield cutter head affects the mud outflow, and then affects the overall working state

Method used

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  • Mud cake formation prevention steel plate for shield cutter head and simulation experiment table for characteristic test of mud cake formation prevention steel plate
  • Mud cake formation prevention steel plate for shield cutter head and simulation experiment table for characteristic test of mud cake formation prevention steel plate
  • Mud cake formation prevention steel plate for shield cutter head and simulation experiment table for characteristic test of mud cake formation prevention steel plate

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Experimental program
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Embodiment 1

[0045] A steel plate for shield cutter head, see Figure 1 to Figure 9 , is installed on the shield cutter head, and is specifically installed on the rake face 1 of the cutter head on the cutter head, which is consistent with the shape and size of the rake face of the cutter head on the cutter head, and is connected with the rake face via bolts. Connection, the steel plate is made of molybdenum vanadium alloy, one of Q235 / Q245, and the upper surface finish is less than 0.1.

[0046] It also relates to a simulation test bench for testing the properties of steel plates, including a test bench, the test bench includes a lower storage support area 2 and an upper equipment inclination angle area 3, the lower storage support area and the upper equipment inclination angle section are provided with hinges The hinged connection of the structural components 4 is connected, and the test board support table 21 driven by the bidirectional motor 22 is installed in the inclination area of ​​...

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Abstract

The invention relates to a testing device of shield construction equipment, in particular to an anti-mud cake steel plate for a shield cutterhead and a simulation experiment table for characteristic testing of the anti-mud cake steel plate. The problems that in the prior art, mud cakes formed on a shield cutter head affect outflow of mud, and then the overall working state is affected are solved. The steel plate is installed on a shield cutter head, is specifically clamped on the front cutter face of the cutter head on a cutter head, is consistent with the front cutter face of the cutter head on the cutter head in shape and position size and is connected with the front cutter face through a bolt, the steel plate is made of molybdenum-vanadium alloy or one of Q235 and Q245 in a modified mode, and the smoothness of the upper surface of the steel plate is smaller than 0.1. The invention has the advantages that a layer of toughened film beneficial to slurry sliding is added on the cutter head equivalently, and meanwhile, the toughened film is provided with a set of detection platform, so that the toughened film can be adjusted and replaced in real time under different working conditions.

Description

technical field [0001] The invention relates to a testing device for shield construction equipment, in particular to an anti-mud cake steel plate for shield cutter head and a simulation test bench for testing its characteristics. Background technique [0002] In the shield excavation operation, the strata at the top of the tunnel are mainly silty clay, silty sand, clay, breccia, and pebble soil. The strata that the tunnel passes through are: silty clay 16%, silty sand 11%, clay 8%, breccia 15%, pebble soil 5%, strongly weathered mudstone 25%, and moderately weathered mudstone 14% , moderately weathered gravel-bearing argillaceous sandstone accounts for 2%. There are also karsts in local locations. [0003] Clay and strong to moderately weathered mudstone contain a large amount of viscous minerals and have strong soil adhesion. The viscous particles have a certain water-absorbing expansion and adsorption capacity. The clay under the cutting tool is easily attached to the c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/08
CPCE21D9/08
Inventor 赵海雷李治国王利明王云峰王世强陈纯洁王发民韩伟锋杨振兴翟乾智秦银平吕乾乾杨新举张继超
Owner CHINA RAILWAY TUNNEL GROUP CO LTD
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