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Electro-hydraulic control reversing valve test system based on PLC module control

An electro-hydraulic control reversing valve and test system technology, applied in fluid pressure actuation system testing, fluid pressure actuation system components, fluid pressure actuation devices, etc. Test results and other issues to achieve the effect of improving efficiency and solving labor intensity problems

Inactive Publication Date: 2021-12-21
BEIJING LANGDE COAL MINE MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides an electro-hydraulic control reversing valve test system based on PLC module control, which solves the problem that it is difficult to carry out high-pressure, low-pressure, pressure-holding tests and Working pressure monitoring, and it is difficult to meet the problems of multiple test operations such as performance test, flow measurement, working pressure, opening pressure measurement and cycle life test, (the huge labor intensity of the life test of tens of thousands of manual operations is not good enough to guarantee the test effect also unrealistic)

Method used

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  • Electro-hydraulic control reversing valve test system based on PLC module control

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Experimental program
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Effect test

Embodiment 1

[0020] Embodiment 1: refer to Figure 1-2 , an electro-hydraulic control reversing valve test system based on PLC module control, including: a control box, an electromagnetic pilot reversing valve, a load cylinder, a hydraulic pump station, a hydraulic high-pressure rubber hose, and a power cord. The control box is electrically connected to the interface of the solenoid valve in the electro-hydraulic control reversing valve part through a cable, and the reversing valve interface in the electro-hydraulic control reversing valve part is connected to the load cylinder through a hydraulic high-pressure rubber hose. The main liquid inlet and main liquid return of the reversing valve are connected with the hydraulic pump station through high-pressure rubber hoses, and the solenoid valve is connected with the pilot valve and the reversing valve through bolts.

[0021] The control box includes a programmable PLC module, a switching power supply and an intermediate relay. The programma...

Embodiment 2

[0027] Embodiment 2: refer to Figure 1-2 , an electro-hydraulic control reversing valve test system based on PLC module control, including: a control box, an electromagnetic pilot reversing valve, a load cylinder, a hydraulic high-pressure hose of a hydraulic pump station, and a power cord. The control box is electrically connected to the interface of the solenoid valve in the electro-hydraulic control reversing valve part through a cable, and the reversing valve interface in the electro-hydraulic control reversing valve part is connected to the load cylinder through a hydraulic high-pressure rubber hose. The main liquid inlet and main liquid return of the reversing valve are connected with the hydraulic pump station through high-pressure rubber hoses, and the solenoid valve is connected with the pilot valve and the reversing valve through bolts.

[0028] The control box includes a programmable PLC module, a switching power supply and an intermediate relay. The programmable P...

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Abstract

The invention discloses an electro-hydraulic control reversing valve test system based on PLC module control. The system comprises a control box, an electromagnetic pilot reversing valve, a load oil cylinder, a hydraulic pump station, a hydraulic high-pressure rubber hose and a power line, the control box is electrically connected with an electromagnetic valve connector in an electro-hydraulic control reversing valve component through a cable, and a reversing valve connector in the electro-hydraulic control reversing valve component is connected with the load oil cylinder through the hydraulic high-pressure rubber hose. The whole system automatically and circularly operates according to the set frequency under the control of a program until the test is finished, power failure occurs or a valve stops running, and the test can be continued after intermediate sudden stop and recovery, the effect of simultaneous realization of high-pressure, low-pressure and pressure-maintaining tests and working pressure monitoring is achieved, the goal of meeting multiple test operations such as performance test, flow measurement, motion sensitivity under the working pressure, opening pressure measurement, cycle lifetime test and the like is achieved, and the detection and test efficiency is greatly improved.

Description

technical field [0001] The invention relates to the technical field of test systems, in particular to an electro-hydraulic control reversing valve test system based on PLC module control. Background technique [0002] The PLC control system is a new generation of industrial control devices formed by introducing microelectronics technology, computer technology, automatic control technology and communication technology on the basis of traditional sequence controllers. The purpose is to replace relays, execute logic, timing, Sequential control functions such as counting, establish a flexible remote control system, which has the characteristics of strong versatility, convenient use, wide adaptability, high reliability, strong anti-interference ability, and simple programming. The electro-hydraulic directional valve is a hydraulic directional valve combined with an electromagnetically operated pilot valve. Use the pressure oil in the control oil circuit to push the spool. The o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B19/00F15B21/08
CPCF15B19/00F15B21/08
Inventor 赵海英
Owner BEIJING LANGDE COAL MINE MACHINERY