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Gas tight test board of hydraulic valve

A technology for air tightness testing and hydraulic valves, which is applied in fluid tightness testing, liquid tightness measurement using liquid/vacuum degree, machine/structural component testing, etc. It can solve the problems of low detection efficiency, air pressure and air leakage Insufficient inspection accuracy and other issues, to achieve high explosion-proof safety performance, compact structure, and high work efficiency

Inactive Publication Date: 2016-03-02
SHENZHEN ZHAOKE INTELLIGENT CONTROL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, in the prior art, the air pressure and air leakage detected by the air tightness detection equipment at the seal of the hydraulic valve core line are not accurate enough, and the detection efficiency is low

Method used

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  • Gas tight test board of hydraulic valve
  • Gas tight test board of hydraulic valve
  • Gas tight test board of hydraulic valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1 of the present invention: as Figures 1 to 3 As shown, a hydraulic valve airtight test bench includes a first station A, characterized in that the first station A includes a test unit A1 and an installation unit A2, and the test unit A1 includes a valve block component 1, Sealing tooling 2, pneumatic two-position four-way reversing valve 4, first pneumatic pressure reducing valve 6 and gas glass rotameter 7; said installation unit A2 includes cylinder 3 and pneumatic three-position five-way reversing valve 5; said The valve block part 1 includes a valve body installation part 101, a tooling installation part 102, a cylinder installation part 103 and a gas discharge port 104; the cylinder 3 includes a cylinder barrel 301 and a piston rod 302; the sealing tooling 2 includes a tooling exhaust part 203 , the tooling fixing part 202, the tooling air intake part 201 and the tooling internal through hole 204.

[0023] The cylinder barrel 301 of the cylinder 3 is ...

Embodiment 2

[0026] Embodiment 2 of the present invention: as Figure 4 As shown, a hydraulic valve airtight test bench includes a first station A, characterized in that the first station A includes a test unit A1 and an installation unit A2, and the test unit A1 includes a valve block component 1, Sealing tooling 2, pneumatic two-position four-way reversing valve 4, first pneumatic pressure reducing valve 6 and gas glass rotameter 7; said installation unit A2 includes cylinder 3 and pneumatic three-position five-way reversing valve 5; said The valve block part 1 includes a valve body installation part 101, a tooling installation part 102, a cylinder installation part 103 and a gas discharge port 104; the cylinder 3 includes a cylinder barrel 301 and a piston rod 302; the sealing tooling 2 includes a tooling exhaust part 203 , the tooling fixing part 202, the tooling air intake part 201 and the tooling internal through hole 204.

[0027] The cylinder barrel 301 of the cylinder 3 is fixedl...

Embodiment 3

[0031] Embodiment 3 of the present invention: as Figure 5 As shown, a hydraulic valve airtight test bench includes a first station A, characterized in that the first station A includes a test unit A1 and an installation unit A2, and the test unit A1 includes a valve block component 1, Sealing tooling 2, pneumatic two-position four-way reversing valve 4, first pneumatic pressure reducing valve 6 and gas glass rotameter 7; said installation unit A2 includes cylinder 3 and pneumatic three-position five-way reversing valve 5; said The valve block part 1 includes a valve body installation part 101, a tooling installation part 102, a cylinder installation part 103 and a gas discharge port 104; the cylinder 3 includes a cylinder barrel 301 and a piston rod 302; the sealing tooling 2 includes a tooling exhaust part 203 , the tooling fixing part 202, the tooling air intake part 201 and the tooling internal through hole 204.

[0032] The cylinder barrel 301 of the cylinder 3 is fixedl...

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Abstract

The present invention discloses a gas tight test board of a hydraulic valve, belonging to the field of the hydraulic element testing technology. The gas tight test board of the hydraulic valve comprises a first station, the first station includes a testing unit and an installation unit, and the testing unit includes a valve block part sealing tool, a pneumatic two-position and four-way reversing valve, a first pneumatic pressure reducing valve and a gas glass rotameter; the installation unit includes a cylinder and a pneumatic three-position and five-way reversing valve; the valve block part includes a valve body installation part, a tool installation part, a cylinder installation part and a gas outlet; the cylinder includes a cylinder barrel and a piston rod; and the sealing tool includes a tool venting part, a tool fixing part, a tool intake part and the interior through hole of the tool. According to the invention, the gas tight test board of hydraulic valve is able to accurately detect gas pressure and the quantity of gas leakage, and is also able to rapidly change a measured valve body, therefore the work efficiency of the detection is improved.

Description

technical field [0001] The invention relates to a hydraulic valve airtight test bench, which belongs to the technical field of hydraulic component testing. Background technique [0002] The sealing performance of the hydraulic valve spool wire seal is very critical to the performance of the hydraulic valve, and air tightness testing is an effective detection method for detecting the sealing performance of the spool wire seal. The air tightness test needs to ventilate at the oil inlet side of the valve seat, and at the same time detect the air leakage at the oil outlet side of the hydraulic valve. The two indicators of the vented pressure and air leakage must meet the relevant regulations at the same time. At present, in the prior art, the air pressure and air leakage detected by the air tightness detection equipment at the seal of the hydraulic spool line are not accurate enough, and the detection efficiency is low. Contents of the invention [0003] The purpose of the pr...

Claims

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Application Information

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IPC IPC(8): G01M3/28
CPCG01M3/2876
Inventor 王彪牛涛许开国肖立吴军委周勇曙涂波林宁唐安
Owner SHENZHEN ZHAOKE INTELLIGENT CONTROL TECH CO LTD
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