Multi-mode synchronous advancement and assembly system of shield tunneling machine and control method of multi-mode synchronous advancement and assembly system

A multi-mode, shield machine technology, applied in fluid pressure actuated system components, mechanical equipment, earthwork drilling and mining, etc., can solve the problems of mutual constraints between the advancing process and the assembling process

Active Publication Date: 2020-05-05
CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the deficiencies in the above-mentioned background technology, the present invention proposes a shield machine multi-mode synchronous propulsion, assembly system and its control method, which solves the technical problem of the mutual restriction of the propulsion process and the assembly process in the construction process of the traditional shield machine

Method used

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  • Multi-mode synchronous advancement and assembly system of shield tunneling machine and control method of multi-mode synchronous advancement and assembly system
  • Multi-mode synchronous advancement and assembly system of shield tunneling machine and control method of multi-mode synchronous advancement and assembly system

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Experimental program
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Effect test

Embodiment 1

[0047] Embodiment 1, a shield machine multi-mode synchronous propulsion, assembly system, such as figure 2 As shown, it includes a propulsion pump source 1 and an assembly pump source 2 connected to the PLC control unit. The propulsion pump source 1 is used to provide power for shield machine propulsion, and the assembly pump source 2 is used to provide power for assembly.

[0048] like figure 1 As shown, the propulsion pump source 1 and the assembled pump source 2 are connected to the oil cylinder group through the hydraulic valve group, and the oil cylinder group is connected to the oil return circuit 31, and the propulsion pump source 1 and the assembled pump source 2 are connected to the oil cylinder group through the hydraulic valve block. Oil is supplied, and then the extension and retraction of the oil cylinder group are realized. When the oil cylinders of the oil cylinder group are extended and retracted, the corresponding hydraulic oil in the cylinder cavity is retur...

Embodiment 2

[0059] Embodiment 2, a shield machine multi-mode synchronous propulsion and assembly system, the large group of valve blocks 3 is connected with an external control oil source through the external control oil circuit 32, the external control oil circuit 32 includes the first shuttle valve 15, the first shuttle valve One oil inlet end of 15 is connected to the external control oil source, and the other oil inlet end is connected to the assembled mode rodless chamber oil return oil circuit between the rodless chamber of the cylinder group and the rodless chamber oil return valve 13, the first shuttle valve 15 The oil outlet end is connected with the rodless chamber oil return valve 13 through the second electromagnetic reversing valve 14, and the second electromagnetic reversing valve 14 is connected with the PLC control unit.

[0060] When advancing or assembling, the pressure in the rodless chamber of the cylinder group continues to increase, and it is necessary to ensure that ...

Embodiment 3

[0062] Embodiment 3, a shield machine multi-mode synchronous propulsion and assembly system, the external control oil circuit 32 includes a second shuttle valve 25, one oil inlet end of the second shuttle valve 25 is connected with the external control oil source, and the other oil inlet The end is connected on the rodless chamber oil inlet oil path of the assembly mode between the rodless chamber of the oil cylinder group and the second oil inlet valve 17 of the assembly mode, and the oil outlet end of the second shuttle valve 25 is connected with the assembly mode through the third electromagnetic reversing valve 18. The second oil inlet valve 17 is connected to each other, and the third electromagnetic reversing valve 18 is connected to the PLC control unit.

[0063] During assembly, the oil of the assembled pump source 1 needs to enter the rodless cavity of the cylinder group through the second oil inlet valve 17 in the assembled mode. In the pressure maintaining state, the...

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Abstract

The invention discloses a multi-mode synchronous advancement and assembly system of a shield tunneling machine and a control method of the multi-mode synchronous advancement and assembly system. The multi-mode synchronous advancement and assembly system includes an advancement pump source and an assembly pump source which are connected with a PLC control unit. The advancement pump source and the assembly pump source are both connected with an oil cylinder group through a hydraulic valve group, and the oil cylinder group is connected with an oil return channel. The hydraulic valve group includes at least one large-group valve block, and each large-group valve block includes a fixed group mode rodless cavity oil inlet channel, a fixed group mode rod cavity oil return channel, an analog fixedgroup mode rodless cavity oil inlet channel, an assembly mode rod cavity oil inlet channel, an assembly mode rodless cavity oil return channel and an assembly mode rodless cavity oil inlet channel ofthe oil cylinder group. The multi-mode synchronous advancement and assembly system has a fixed group mode, an analog fixed group mode and an arbitrary group mode. The multi-mode synchronous advancement and assembly system has a plurality of advancement modes including the fixed group mode, the analog fixed group mode, the arbitrary group mode and a weekend pressure maintaining mode, and can realize the functions of synchronous advancement and assembly of a shield.

Description

technical field [0001] The invention relates to the technical field of shield machine hydraulic control, in particular to a shield machine multi-mode synchronous propulsion and assembly system and a control method thereof. Background technique [0002] Since the 21st century, the urban process has become faster and faster, and there are more and more projects such as subway construction and tunnel construction. As the pioneer of tunnel construction, the shield machine has been paid more and more attention by the construction party, and the frequency of use is increasing. [0003] As the tunneling power system of the shield machine, the efficiency of the propulsion system determines the construction efficiency of the shield machine, and improving efficiency is to create economic benefits. In the traditional construction process of the shield machine, the propulsion system first excavates a ring distance, then assembles the segments, and continues to excavate after the assemb...

Claims

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Application Information

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IPC IPC(8): F15B11/17F15B11/22F15B13/06F15B21/02E21D9/06E21D9/093
CPCE21D9/0621E21D9/093F15B11/17F15B11/22F15B13/06F15B21/02F15B2211/20576F15B2211/782
Inventor 许顺海李光周小磊郑博李太运郭付军叶蕾马志勇詹晨菲朱雷罗恒星蔡留金
Owner CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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