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Servo valve test system

A test system and servo valve technology, applied in fluid pressure actuation system testing, fluid pressure actuation devices, mechanical equipment, etc., can solve problems that are not easy to implement, improve system automation, simplify test steps, and respond quickly Effect

Active Publication Date: 2010-08-25
ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Online testing checks the working conditions of the servo valve without being separated from the original equipment. Although online testing is convenient, it is often limited by the application of the servo valve and is not easy to implement.

Method used

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Embodiment Construction

[0047] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0048] In Fig. 1, it is mainly composed of a hydraulic test system 32, an electrical control system 33 and a data acquisition and processing system 34, and the servo valve 9 to be tested is connected with the hydraulic test system 32; The valve group 6 is divided into a dynamic oil circuit and a static oil circuit, and a dynamic oil cylinder 2 for testing the servo valve 9 to be tested is also provided in the hydraulic test system 32 ; the data acquisition and processing system 34 is connected with the hydraulic test system 32 . The system can complete various detection tests in GB / T15623-1995 (Electro-hydraulic servo valve test method), such as zero offset and zero drift test, internal leakage test, no-load flow test, flow load pressure drop test, transient response test etc.

[0049] In Fig. 2, the hydraulic test system 32 includes the main oil circu...

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Abstract

The invention relates to a servo valve test system. By adopting a cartridge valve to automatically switch static and dynamic oil lines, the servo valve test system can realize the full automatic one-step test and intelligent analysis of the static properties and the dynamic properties of an electro-hydraulic servo valve, improves the test efficiency of the electro-hydraulic servo valve, and increases the accuracy of the test results. Strictly based on the test standard of the electro-hydraulic servo valve GB / T15623-1995, the whole test method completes all the detection tests of the servo valve, and automatically displays and outputs the test results. The servo valve test system mainly comprises a hydraulic test system, an electrical control system and a data acquisition and processing system, wherein a servo valve to be tested is connected with the hydraulic test system and the electrical control system; a main oil line of the hydraulic test system is automatically switched to the dynamic oil line and the static oil line by a cartridge valve assembly, and the hydraulic test system is also provided with a dynamic cylinder for detecting the servo valve to be tested; and the data acquisition and processing system is connected with the electrical control system and the hydraulic test system.

Description

[0001] technical field [0002] The invention relates to a servo valve testing system. Background technique [0003] Electro-hydraulic servo control systems are widely used in important fields such as power generation, metallurgy, and aerospace. Electro-hydraulic servo valves are the core components of electro-hydraulic servo control systems. They are both signal conversion components and power amplification components. The electro-hydraulic servo valve combines high-precision parts of machinery, electronics and hydraulic technology, and combines the characteristics of both electricity and hydraulics. It has the advantages of high control precision, fast response, flexible signal processing, large output power and compact structure. Its performance directly affects the control accuracy, stability and reliability of the electro-hydraulic control system. [0004] Due to the high precision of the electro-hydraulic servo valve and its key position in the electro-hydraulic serv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B19/00
Inventor 李福尚
Owner ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY
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