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Multi-mode steering system for rectangular tunnel boring machine, and control method

A technology of tunnel boring machine and mode control module, which is applied in fluid pressure actuation system components, mechanical equipment, fluid pressure actuation devices, etc., which can solve the problem that the shield body is easy to get out of trouble, and the posture of the shield body and the tail cannot be self-adapted and controlled. Problems such as single mode

Active Publication Date: 2021-05-07
CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the technical problems that the existing pipe jacking machine direction adjustment system has a single control mode, it is not easy to get out of trouble when the shield body is stuck, and the shield tail posture cannot be self-adapted, the present invention proposes a multi-mode direction adjustment system and control method for a rectangular tunnel boring machine. It can realize three modes of single group control, conventional control and combined strengthening, so that the roadheader can better adapt to the serpentine advancement, especially the adaptive adjustment of the shield tail attitude can better adapt to the curve excavation, and it is easier to block the shield body out of trouble

Method used

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  • Multi-mode steering system for rectangular tunnel boring machine, and control method
  • Multi-mode steering system for rectangular tunnel boring machine, and control method
  • Multi-mode steering system for rectangular tunnel boring machine, and control method

Examples

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Effect test

Embodiment 1

[0028] Example 1, such as figure 1 As shown, a multi-mode steering system for a rectangular tunnel boring machine includes a fuel tank 1 and a cylinder group. Control the movement of the shield body of the pipe jacking machine. The oil tank 1 is connected to the oil cylinder group through a mode control module, and the mode control module is used to control the flow of hydraulic oil in the oil tank 1 to the oil cylinders in the oil cylinder group. There are at least four sets of the mode control module corresponding to the oil cylinder groups, and the oil cylinder groups are evenly distributed around the circumference of the shield body, corresponding to the up, down, left, and right sides of the shield body, and each group has at least one oil cylinder, and the four directions of up, down, left, and right must be able to realize Turn to function. The oil tank 1 is connected to the mode control module through the oil inlet pipeline, and the oil inlet pipeline inputs hydrauli...

Embodiment 2

[0034] Example 2, such as figure 2 As shown, a control method for the multi-mode steering system of a rectangular tunnel boring machine:

[0035] The cylinder group includes the first cylinder group A, the second cylinder group B, the third cylinder group C and the fourth cylinder group D, the first cylinder group A, the second cylinder group B, the third cylinder group C and the fourth cylinder group Group D is respectively connected with a mode control module, that is, one mode control module controls one oil cylinder group.

[0036] Single-group control mode: the cylinders in one cylinder group are in a locked state, the two cylinder groups are in a floating state, and the cylinders in the other cylinder group are extended or retracted. The four cylinder groups can be combined arbitrarily, up, down, left, All four directions on the right can be adjusted to realize the fine adjustment of the attitude of the roadheader.

[0037] Conventional control mode: Two of the cylind...

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Abstract

The invention provides a multi-mode steering system for a rectangular tunnel boring machine, and a control method. The multi-mode steering system is used to solve the problems that an existing steering system of a pipe jacking machine is single in control mode, a shield body is hard to get out when stuck, and the posture of a shield tail cannot be self-adaptive. The multi-mode steering system comprises an oil tank and an oil cylinder unit, and the oil tank is connected with the oil cylinder unit through mode control modules; at least two groups of mode control modules correspond to the oil cylinder unit, and the oil tank is connected with the mode control modules through oil inlet pipelines; the mode control modules are connected with rod cavity pipelines and rodless cavity pipelines, and the rod cavity pipelines are connected with rod cavities of oil cylinders in the oil cylinder unit; the rodless cavity pipelines are connected with rodless cavities of the oil cylinders in the oil cylinder unit; and the mode control modules are connected with oil return pipelines. According to the multi-mode steering system, through different control modes of an electromagnetic reversing valve and an electromagnetic ball valve, the boring machine has multiple steering modes, and therefore the boring machine can better adapt to snakelike advancing; and the self-adaption of the posture of the shield tail better adapts to curve tunneling, and the boring machine is easy to get out when the shield body is jammed.

Description

technical field [0001] The invention relates to the technical field of underground engineering construction, in particular to a multi-mode steering system and control method for a rectangular tunnel boring machine. Background technique [0002] With the continuous progress of human civilization, the environmental pollution of urban ground transportation has attracted more and more attention. How to develop and utilize urban underground space more efficiently has become an issue of concern to the industry. In the construction of urban tunnels, the shield construction method has unique advantages. Affect urban ground transportation, normal life of urban residents, obtain good engineering quality and high construction speed, etc., and rapidly promote and develop. During the excavation process of the pipe jacking machine, there will be curve excavation and the phenomenon that the axis deviates from a certain angle. It is necessary to adjust the direction and correct the deviatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B11/16F15B21/041F15B21/08
CPCF15B11/16F15B21/041F15B21/087
Inventor 贾连辉许顺海陈海锋郭攀登李东辉于刘帅朱雷周小磊李太运罗恒星郑博蔡留金詹晨菲
Owner CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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