Shield cutter head with refrigeration function and shield tunneling machine

A shield cutter head and function technology, which is applied in soil protection, infrastructure engineering, mining equipment and other directions, can solve the problems of easy water penetration, difficult construction and high technical difficulty on the face of the tunnel and the top of the excavation space. The effect of reducing interaction time, easy to ensure strength, and strengthening weak points

Inactive Publication Date: 2017-03-22
CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the opening of the mud-water balance shield machine mainly adopts the direct opening method under normal pressure and the opening under pressure method. When the direct opening method under normal pressure is adopted, the tunnel face and the top of the excavation space are prone to permeation and carry a large amount of sediment Entering the mud tank, causing a major accident
Using the method of opening the warehouse under pressure, there are problems such as difficult construction, high technical difficulty, and high cost.

Method used

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  • Shield cutter head with refrigeration function and shield tunneling machine
  • Shield cutter head with refrigeration function and shield tunneling machine
  • Shield cutter head with refrigeration function and shield tunneling machine

Examples

Experimental program
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Effect test

Embodiment 1

[0021] Embodiment 1: see Figure 1 to Figure 4 , a shield cutterhead with freezing function, comprising a disk-shaped cutterhead body composed of a plurality of spoke beams and a freezing pipeline arranged on the cutterhead body, the spoke beams are composed of a main body equipped with several hobs The spoke beam and the sub-spoke beam equipped with several scrapers are composed of several main and sub-spoke beams which are radially distributed and arranged alternately around the center of the cutterhead body. On the main spoke beam, its outer end is connected with the outer end of the adjacent main spoke beam through a ring beam, and a scraper protection block is arranged on the front working surface of the auxiliary spoke beam. Between the circular ring beam and the main ring beam, there is a circular reinforcing rib for connecting the adjacent main and auxiliary spoke beams; the backs of the several main and auxiliary spoke beams are provided with cooling fluid arranged al...

Embodiment 2

[0025] Embodiment 2: not shown in the figure, a shield machine comprising the above-mentioned shield cutter head with freezing function, also includes main drive, front shield, middle shield, propulsion cylinder, hinged cylinder, shield tail, segment installation machine , rear supporting system and freezing station, the freezing station is placed in the supporting system behind the shield machine, the freezing station is composed of a refrigerator, a brine tank, a brine pump, a clean water pump and a cooling tower, and the inlet of the clean water pump is connected to a water source , its outlet communicates with the cooling tower through a pipeline, and a brine pump is provided in the brine tank, and the brine pump pumps the brine in the brine tank into the freezer for cooling, and the outlet of the freezer is connected to the freezing tube through a pipeline road connection. In this embodiment, the main drive, front shield, middle shield, propulsion cylinder, articulated cy...

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Abstract

The invention discloses a shield cutter head with a refrigeration function and a shield tunneling machine. The shield cutter head with the refrigeration function comprises a disc-shaped cutter head body composed of a plurality of spoke beams and a refrigeration pipeline arranged on the cutter head body. The spoke beams are composed of the multiple main spoke beams and the multiple secondary spoke beams which are distributed in a radial mode with the center of the cutter head body as the center and are arranged alternately. The inner ends of the secondary spoke beams are connected with the adjacent main spoke beams through a main ring beam, and the outer ends of the secondary spoke beams are connected with the outer ends of the adjacent main spoke beams through a ring beam. The back portions of the multiple main spoke beams and the secondary spoke beams are all provided with cooling liquid passages distributed in the length direction, and the cooling liquid passages formed in the back portions of the main spoke beams and the secondary spoke beams sequentially communicate according to the distribution mode of the main spoke beams and the secondary spoke beams to form the refrigeration pipeline. The shield tunneling machine comprises the above-mentioned cutter head. Construction is carried out through a freezing method in the space needing chamber opening under pressure. After the high-pressure area like a tunnel face is frozen, cutter replacement and repair work is carried out, and convenience is brought to construction.

Description

technical field [0001] The invention relates to a shield machine cutter head and a shield machine, in particular to a shield machine cutter head and a shield machine with a freezing function. Background technique [0002] In the field of underground engineering, the application of shield method construction is more and more extensive. Shield machines in underground engineering are bulky and heavy, and the underground working space is limited. The mud-water balance shield machine is a special construction machine for tunnel excavation. It has the functions of excavating and cutting soil, conveying sludge, assembling tunnel lining, etc. It has been widely used in tunnel projects such as subways, railways, highways, municipalities, and hydropower. . [0003] At present, the opening of the mud-water balance shield machine mainly adopts the direct opening method under normal pressure and the opening under pressure method. When the direct opening method under normal pressure is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/08E02D3/115
CPCE21D9/001
Inventor 于庆增欧阳凯张家年叶蕾
Owner CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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