Shield electro-hydraulic control system comprehensive test platform

A technology of electro-hydraulic control system and hydraulic control system, which is applied in the field of test platform, can solve the problems of system installation and debugging technology not fully mastered, and there is no database of design experience database and construction experience database of shield electro-hydraulic control system, so as to shorten the research and development Periodic, full-featured, high-simulation effects

Active Publication Date: 2013-06-05
CHINA RAILWAY TUNNEL GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no guidance of adaptive design theory suitable for the national conditions and general standards for the design of the shield tunneling industry in China. At the same time, there is no design experience database and construction experience database of the shield electro-hydraulic control system, and the installation and commissioning technology of the system has not been fully mastered.

Method used

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  • Shield electro-hydraulic control system comprehensive test platform
  • Shield electro-hydraulic control system comprehensive test platform
  • Shield electro-hydraulic control system comprehensive test platform

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] The present invention will be further described below in conjunction with the accompanying drawings and embodiments. In this embodiment, a simulation test is carried out on the cutter head\segment assembly machine\screw conveyor load simulation and drive test unit of the shield electro-hydraulic comprehensive test platform.

[0042] When carrying out the cutter head drive simulation test, the electromagnets of the two-position three-way reversing valve 2 and the two-position three-way reversing valve 12 are energized, and the electromagnets of the two-position three-way reversing valve 4 are de-energized. The driving part is composed of a variable pump control motor system. By changing the displacement of the variable pump, the speed of the cutter head can be changed, and the speed regulation test of the cutter head is carried out. In the load simulation part on the right, the inertia load of the cutter head is simulated by the fixed inertia wheel 17 and the movable iner...

Embodiment 2

[0046] In this embodiment, a simulation test is carried out on the propulsion control system of the shield electro-hydraulic comprehensive test platform.

[0047] The propulsion hydraulic cylinder 27 and the loading hydraulic cylinder 23 of the simulated propulsion control system adopt a top-to-top configuration; there are two control modes for the output force and propulsion speed of the propulsion hydraulic cylinder: proportional pressure reducing valve control mode and proportional relief valve + proportional speed regulating valve control Mode, two different control modes can be switched through the two-position three-way reversing valve. It can complete the performance comparison test of two typical propulsion systems and the experimental research on the disturbance law of switching between two propulsion modes.

[0048] There are 4 groups of hydraulic cylinders in the whole system, and the pressure and flow of each group of hydraulic cylinders are independently controlle...

Embodiment 3

[0050] In this embodiment, a simulation test is carried out on the hydraulic cylinder motion control test system of the multi-degree-of-freedom segment assembly mechanism of the shield electro-hydraulic comprehensive test platform.

[0051] The multi-degree-of-freedom segment assembly mechanism hydraulic cylinder motion control test system is used to simulate the hydraulic cylinder motion control of the shield segment assembly machine. The system mainly consists of two vertical lifting hydraulic cylinders 32 and one horizontal moving hydraulic cylinder 31 and proportional directional valves controlling them. The flow and direction of the hydraulic cylinder can be controlled by the proportional directional valve, and the speed and direction of the hydraulic cylinder can be controlled. At the same time, each hydraulic cylinder is equipped with a displacement sensor 33, which can monitor the displacement of the hydraulic cylinder in real time and feed back the measured displacemen...

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Abstract

The invention relates to a shield electro-hydraulic control system comprehensive test platform which is mainly composed of a hydraulic control system, a data collecting and controlling system and control system software. The hydraulic control system main comprises a tool pan or pipe erector or screw conveyer loading simulation system, a tool pan or pipe erector or spiral conveyer driving and controlling system, a pushing loading simulation system, a pushing driving and controlling system and a multi-freedom degree duct piece assembling positioning control system. The data collecting and controlling system is mainly used for monitoring the shield electro-hydraulic control system, meanwhile collecting and recording operation data from various sensors and devices in the test platform in real time, and therefore ensuring smooth launch of various tests such as a tool pan driving simulation and pushing system motion test and a performance test of a pump, a motor and a valve in a hydraulic system unit.

Description

technical field [0001] The invention relates to a test platform, in particular to a comprehensive test platform for a shield electro-hydraulic control system. Background technique [0002] Shield tunneling is an important construction equipment for underground tunnel excavation. It is a comprehensive equipment that uses mechanical crushing of rocks, excavation and tunnel support to implement continuous operations. Shield tunneling is a highly intelligent tunnel construction major technical equipment integrating mechanical, electrical, hydraulic, gas, optical and computer technologies. Its biggest feature is that the entire tunneling process is completed under the cover of this steel structure called a shield, which can minimize collapse and surface deformation. Compared with traditional tunneling technology, shield construction has the advantages of safety, reliability, high degree of mechanization, good working environment, and fast construction progress. Especially in tun...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/418
CPCY02P90/02
Inventor 洪开荣陈馈李凤远孙善辉王助锋陈啟伟冯欢欢
Owner CHINA RAILWAY TUNNEL GROUP CO LTD
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