Split shield tunneling machine hydraulic pushing control valve set convenient to assemble and control method thereof

A technology of propulsion control and shield machine, which is applied in earth-moving drilling, mechanical equipment, servo motor components, etc., can solve the problems of difficult installation and maintenance of hydraulic propulsion system, save installation space, facilitate fault maintenance, and reduce length.

Pending Publication Date: 2019-05-28
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 split-type shield machine hydraulic propulsion control valve group that is easy to assemble, which solves the technical problem of difficult installation and maintenance of the hydraulic propulsion system of the existing shield machine

Method used

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  • Split shield tunneling machine hydraulic pushing control valve set convenient to assemble and control method thereof
  • Split shield tunneling machine hydraulic pushing control valve set convenient to assemble and control method thereof
  • Split shield tunneling machine hydraulic pushing control valve set convenient to assemble and control method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment 1, the split-type shield machine hydraulic propulsion control valve group that is easy to assemble, such as figure 2 image 3 As shown, the valve block base 1 is included, and the valve block base 1 is provided with a general oil inlet oil passage 2 and a general oil discharge oil passage 5 . Such as figure 1 As shown, the total oil inlet passage 2 includes a first oil inlet passage 2-1 and a second oil inlet passage 2-2, and the first oil inlet passage 2-1 and the second oil inlet passage 2- 2 is connected with the first joint control block 3. The first control block 3 is the opening and closing assembly of the entire control valve group, which controls the opening and closing of the oil circuit of the entire valve block.

[0026] The first joint control block 3 includes a proportional pressure reducing valve 3-1 connected between the first oil inlet oil passage 2-1 and the second oil inlet oil passage 2-2, and the proportional pressure relief valve 3-1 ...

Embodiment 2

[0031] Embodiment 2, the split-type shield machine hydraulic propulsion control valve group that is easy to assemble, such as figure 1 As shown, the first-connected control block 3 includes the first-connected three-way electromagnetic directional valve 3-3 and the first-connected cartridge valve 3-4 connected to the control unit, the first-connected three-way electromagnetic directional valve 3-3 and the first-connected plug-in valve The oil inlet of the installation valve 3-4 is connected in parallel with the first oil inlet passage 2-1, and the first oil inlet passage 2-1 can synchronously feed the first three-way electromagnetic reversing valve 3-3 and the first cartridge valve 3-4 for oil supply. The oil outlet of the first three-way electromagnetic reversing valve 3-3 is connected to the control port of the first-connected cartridge valve 3-4, and the oil return port of the first three-way electromagnetic reversing valve 3-3 is connected to the main drain oil passage 5 ...

Embodiment 3

[0033] Embodiment 3, the split-type shield machine hydraulic propulsion control valve group that is easy to assemble, such as figure 1 As shown, the oil inlet of the control-linked cartridge valve 4-1, the oil inlet of the control-linked three-way electromagnetic reversing valve 4-2 and the oil outlet of the control-linked cartridge valve 4-1 are provided with The control-linked double-ball shuttle valve 4-5, the first oil inlet of the control-linked double-ball shuttle valve 4-5 is connected with the oil inlet of the control-linked cartridge valve 4-1, and the first oil inlet of the control-linked double-ball shuttle valve 4-5 The second oil inlet is connected to the oil outlet of the control unit cartridge valve 4-1, and the oil outlet of the control unit double ball shuttle valve 4-5 is connected to the oil inlet of the control unit three-way electromagnetic reversing valve 4-2 . The control-linked double-ball shuttle valve 4-5 is capable of high-pressure selection, and ca...

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Abstract

The invention discloses a split shield tunneling machine hydraulic pushing control valve set convenient to assemble and a control method thereof. The control valve set comprises a valve block base; atotal oil inlet way and a total oil discharge way are arranged on the valve block base; the total oil inlet way comprises a first oil inlet way and a second oil inlet way; a head connection control block is connected between the first oil inlet way and the second oil inlet way; and a control connection control block is arranged on the second oil inlet way. The head connection control block comprises a proportional pressure reducing valve connected between the first oil inlet way and the second oil inlet way; and the proportional pressure reducing valve can adjust the oil supply pressure to realize stepless pressure adjustment. The control connection control block comprises a control connection cartridge valve connected with the second oil inlet way and a control connection three-way electromagnetic reversing valve; the control connection three-way electromagnetic reversing valve can control connection or disconnection of the control connection cartridge valve; and the number of the control connection control block can be selected according to actual demands. The control valve set can reduce the length and save the mounting space, and is convenient to maintain faults and high in interchangeability.

Description

technical field [0001] The invention relates to the technical field of shield machine hydraulic control, in particular to a split type shield machine hydraulic propulsion control valve group and a control method thereof which are easy to assemble. Background technique [0002] The hydraulic propulsion system is an important part of the shield machine. It undertakes the jacking task of the entire shield machine. It is required to complete the turning, curve travel, attitude control, deviation correction and synchronous movement of the shield machine, so that the shield machine can move along the pre-set route forward. [0003] At present, the hydraulic propulsion valve group configured on the shield machine mostly adopts the form of superposition of each valve block, and the blocks are connected by bolts, and at the same time, the blocks are connected and sealed by O-rings. Due to factors such as out-of-tolerance processing of the sealing groove, or assembly reasons, the sea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B13/044F15B13/08F15B13/02E21D9/093
Inventor 朱雷李光张瑜峰陈建兴
Owner CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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