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Device for testing sealing performance, pressure resistance and opening pressure of automobile electromagnetic valve

A technology of opening pressure and testing equipment, which is applied in fluid tightness testing, measuring equipment, using stable tension/pressure to test material strength, etc., to achieve low cost, convenient operation, and improved performance

Pending Publication Date: 2020-04-28
NINGBO TUOPU INTELLIGENT BRAKE SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And now there is no special equipment that can detect the above items on the market, so it is necessary to develop a new test equipment to solve the above problems

Method used

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  • Device for testing sealing performance, pressure resistance and opening pressure of automobile electromagnetic valve
  • Device for testing sealing performance, pressure resistance and opening pressure of automobile electromagnetic valve
  • Device for testing sealing performance, pressure resistance and opening pressure of automobile electromagnetic valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] For a normally open valve, when using the present invention to detect the sealing performance of the solenoid valve, the solenoid valve 103 is first riveted into the test valve block 1, and then the liquid inlet and the liquid outlet of the test valve block 1 are respectively connected to Hydraulic testing machine 2 and brake caliper 3. The solenoid valve coil 101 is sleeved on the solenoid valve 103, and the two stages of the solenoid valve coil 101 are connected to the positive and negative electrodes of the power supply 7 respectively. Connect the pressure sensor module 4 to the control chip circuit module 5, and then connect it to the upper computer module 6. Use the brake caliper 3 to vent the bolt, start the hydraulic testing machine 1, pressurize it to 60 or 120 bar, then turn on the power supply 7, the solenoid valve coil 101 is powered on, the hydraulic circuit is closed, and the pressure source of the hydraulic testing machine 1 is cut off at this time , Throu...

Embodiment 2

[0028] For a normally closed valve, when using the present invention to detect the sealing performance of the solenoid valve, the solenoid valve 103 is first riveted into the test valve block 1, and then the liquid inlet and the liquid outlet of the test valve block 1 are respectively connected to Hydraulic testing machine 2 and brake caliper 3. The solenoid valve coil 101 is sleeved on the solenoid valve 103, and the two stages of the solenoid valve coil 101 are connected to the positive and negative electrodes of the power supply 7 respectively. Connect the pressure sensor module 4 to the control chip circuit module 5, and then connect it to the upper computer module 6. Use the brake caliper 3 to vent the bolt, turn on the power supply 7, the solenoid valve coil 101 is powered on, the hydraulic circuit is opened, the hydraulic press is started, pressurized to 60 or 120 bar, then the power is turned off, and the pressure source of the hydraulic testing machine 2 is cut off. T...

Embodiment 3

[0030] When using the present invention to test the pressure resistance of the solenoid valve, the solenoid valve 103 is first riveted into the test valve block 1, and then the liquid inlet and the liquid outlet of the test valve block 1 are respectively connected to the hydraulic tester using the high-pressure adapter 102 2 and brake calipers 3. The solenoid valve coil 101 is sleeved on the solenoid valve 103, and the two stages of the solenoid valve coil 101 are connected to the positive and negative electrodes of the power supply 7 respectively. Use the brake caliper 3 to exhaust the air, then turn on the power supply 7, and the solenoid valve coil 101 is powered on with 3.5A current. After opening the solenoid valve 103, it is adjusted to a 1A maintenance current. Start the test machine and adjust the pressure to 300bar±5bar (30MPa) ), after maintaining the pressure for 20s, release the pressure, and observe whether there is any deformation and leakage on the surface of the...

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Abstract

The invention relates to a device for testing the sealing performance, the pressure resistance and the opening pressure of an automobile electromagnetic valve. The device comprises a test valve blockand a control system. The test valve block comprises a main valve block body; at least one test flow channel is arranged in the main valve block body; two ends of the test flow channel are respectively communicated with a side opening on the side wall of the test valve block and a bottom opening at the bottom; an electromagnetic valve needing to be tested is inserted into each test flow channel, the outer side of each electromagnetic valve is sleeved with an electromagnetic valve coil, the electromagnetic valve coil is connected with a power supply; the side opening communicated with the testflow channel is connected with a hydraulic testing machine and the bottom opening is connected with brake calipers. The control system comprises a pressure sensor, a control chip circuit module and anupper computer module. According to the invention, the sealing performance, the pressure resistance and the opening pressure of the electromagnetic valve under the loading condition can be tested, sothat related parameters of the electromagnetic valve can be verified and timely improved in the early research and development design process of the electromagnetic valve and thus the response rapidity of the electromagnetic valve is improved.

Description

Technical field [0001] The invention relates to the technical field of electromagnetic valve application measurement, in particular to a test device for the sealing performance, pressure resistance and opening pressure of an automobile electromagnetic valve. Background technique [0002] Solenoid valves are composed of coils and spools. Through electromagnetically controlled industrial equipment, they can control the on and off of hydraulic circuits or gas circuits, and can adjust the direction, flow, speed and other parameters of the medium. It has a very wide range of applications. [0003] At present, solenoid valves are widely used in hydraulic control systems, especially in the hydraulic brake pipelines of automobiles. Different braking requirements of drivers can be achieved by controlling solenoid valves. What affects the reliability of the electro-hydraulic composite brake system under real load conditions is the sealing performance of the solenoid valve, the strength of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M13/00G01M3/28G01N3/12
CPCG01M13/00G01M3/2876G01N3/12
Inventor 蒋开洪王伟玮毛睿吴昊曲丹黄江敏彭小峰阴国法万理平李丰伸严力
Owner NINGBO TUOPU INTELLIGENT BRAKE SYST
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