Test bed for multi-stage servo valve

A servo valve and test bench technology, applied in mechanical valve testing, fluid pressure actuating system testing, fluid pressure actuating system components, etc. Detect problems such as multi-stage servo valve pilot stage spool valve, and achieve the effect of complete test parameters, high accuracy and stable operation.

Pending Publication Date: 2022-08-02
SHOUGANG JINGTANG IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The test bench for servo valve performance testing in the current technology only has a single shared pipeline, which cannot test the pilot stage slide valve of the multi-stage servo valve, resulting in inaccurate performance test results of the multi-stage servo valve

Method used

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  • Test bed for multi-stage servo valve

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Embodiment Construction

[0070] In order to better understand the above technical solutions, the technical solutions of the embodiments of the present application will be described in detail below with reference to the accompanying drawings and specific embodiments. The detailed description is not intended to limit the technical solutions of the present application, and the embodiments of the present application and the technical features in the embodiments may be combined with each other without conflict.

[0071] The embodiment of the present application proposes a test bench for a multi-stage servo valve, including: a workbench for setting the servo valve 38 to be tested; a test oil pressure oil supply device, which is set on the workbench and is used for testing the servo valve 38 to be tested 38 supplies test oil; pilot oil supply device, set on the workbench, is used to supply pilot oil to the servo valve 38 to be tested; oil tank 49, the test oil pressure oil supply device and the pilot oil supp...

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Abstract

The embodiment of the invention discloses a test bench for a multi-stage servo valve, and the test bench comprises a workbench which is used for arranging a to-be-tested servo valve; the test oil pressure oil supply device is arranged on the workbench and used for supplying test oil to the servo valve to be tested; the pilot oil supply device is arranged on the workbench and used for supplying pilot oil to the servo valve to be tested; the test oil pressure oil supply device and the pilot oil supply device are communicated with the oil tank; and the temperature control cleaning device is communicated with the oil tank. The test oil pressure oil supply device and the pilot oil supply device of the test bench are independently arranged, and the test oil pressure oil supply device and the pilot oil supply device can control respective hydraulic oil supply pressure and flow based on actual requirements, so that the test parameters of the test bench for the multi-stage servo valve are complete, and the test result is high in accuracy. The device can be used for detecting the no-load flow characteristics, the load flow characteristics and the internal leakage characteristics of three-stage and two-stage electro-hydraulic servo valves, and a practical and efficient tool is provided for detecting the static performance of the multi-stage electro-hydraulic servo valve.

Description

technical field [0001] The embodiments of the present application relate to the technical field of hydraulic detection, and in particular, to a test bench for a multi-stage servo valve. Background technique [0002] Multi-stage servo valve is a type of servo valve widely used in the hydraulic control of rolling mills. It is usually used for precise motion control of metallurgical equipment such as rolling mills, continuous casting machines, and coilers. , is the core component of the metallurgical hydraulic system. [0003] Metallurgical multi-stage servo valve is usually composed of nozzle baffle mechanism, pilot stage spool valve, power stage spool valve, control circuit and other parts. The gap between the nozzle baffles is usually within 10 μm, and the solid particles in the oil can easily cause the nozzle to block and cause failure. For the two-stage spool valve, the matching gap between the valve core and the valve sleeve is usually between 1-5μm, which is a precisio...

Claims

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Application Information

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IPC IPC(8): F15B19/00F15B1/02F15B21/041F15B21/0427G01M13/003
CPCF15B19/00F15B19/007F15B1/02F15B21/041F15B21/0427G01M13/003
Inventor 刘雨张扬郑文明刘森贺志红李鹏来马召郝彦光乔东博
Owner SHOUGANG JINGTANG IRON & STEEL CO LTD
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