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Vehicle overpressure valve endurance test device

A technology of durability test and overpressure valve, which is applied in the direction of measuring device, mechanical valve test, vehicle test, etc. It can solve the problems of inability to meet high reliability and comprehensive test requirements, reduce on-site wiring settings, and improve work efficiency. , the effect of improving the efficiency of the test operation

Inactive Publication Date: 2019-07-19
DENKEI TECH RANDD SHANGHAI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing test equipment cannot meet the high reliability and comprehensive test requirements

Method used

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  • Vehicle overpressure valve endurance test device
  • Vehicle overpressure valve endurance test device

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Such as figure 1 As shown, the present embodiment provides a vehicle overpressure valve endurance test device, including a test box and a control unit, the control unit includes an air pump 7, a pressure sensing device 5, a programmable controller 6 and a relay 8, and the test box passes through a gas pipe 4 is connected with the air pump 7, the pressure sensing device 5 is arranged on the trachea 4, and the programmable controller 6 is respectively connected with the pressure sensing device 5 and the relay 8, and the relay 8 and the air pump 7; , by repeatedly adjusting the working state of the air pump 7 by controlling the switch of the relay 8, the on-off process of the overpressure valve sample 2 in the test chamber can be detected, and the durability test on the valve can be realized. The conditions for the endurance test are: the environmental condition in the test chamber is 85°C, and the temperature change rate is 1°C / min.

Embodiment 2

[0025] refer to figure 1 As shown, in the vehicle overpressure valve durability test device provided in this embodiment, the test box includes a test box body 1 and a simulated water tank bushing 3 for connecting the overpressure valve sample 2, and the simulated water tank bushing 3 is arranged in the test box Inside the body 1 and connected to the trachea 4 . All the other are with embodiment 1.

[0026] In some embodiments, the side wall of the test box 1 is provided with a vent port detachably connected with the simulated water tank sleeve 3 , and the vent port is connected with the air pipe 4 .

[0027] In some embodiments, the test box body 1 is provided with a glass observation window.

Embodiment 3

[0029] refer to figure 1 As shown, in the vehicle overpressure valve durability test device provided in this embodiment, the pressure sensing device 5 includes a pipe joint, a waterproof sealing box and a pressure sensor, the pressure sensor is detachably connected to the air pipe 4 through the pipe joint, and the pressure sensor is set In a waterproof sealed box. All the other are with embodiment 1.

[0030] In some embodiments, a wireless transmission chip is also provided in the waterproof sealed box, and the wireless transmission chip is connected to the pressure sensor and the programmable controller 6 respectively.

[0031] In some embodiments, a battery is also provided in the waterproof sealed box.

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Abstract

The invention relates to a vehicle overpressure valve endurance test device. The vehicle overpressure valve endurance test device includes a test chamber and a control unit; the control unit includesan air pump (7), a pressure sensing device (5), a programmable controller (6), and a relay (8); the test chamber is connected to the air pump (7) through a air pipe (4); the pressure sensing device (5) is disposed on the air pipe (4); the programmable controller (6) is connected to the pressure sensing device (5) and the relay (8) separately; and the relay (8) is connected to the air pump (7); theprogrammable controller (6) repeatedly adjusts the working state of the air pump (7) by controlling the switch of the relay (8) according to the pressure collected by the pressure sensing device (5),so as to realize the endurance test of an overpressure valve sample (2) in the test chamber. Compared with the prior art, the vehicle overpressure valve endurance test device has the advantages of being able to realize repeated changes of the on and off processes, and high test reliability.

Description

technical field [0001] The invention relates to a test device, in particular to a durability test device for a vehicle overpressure valve. Background technique [0002] The automobile cooling water tank, also known as the radiator, is an indispensable and important part in the cooling system of the automobile water-cooled engine. The heat absorbed by high-temperature parts is dissipated to the heat exchange device in the air. Therefore, the performance of the radiator in the cooling system directly affects the heat dissipation effect of the car engine, its power, economy and reliability, and even its normal operation and performance. The issue of safe driving. The overpressure valve of the cooling water tank is an important component of the water tank, and it needs to be strictly tested before leaving the factory to ensure the stability of the overall structure of the water tank. However, the existing test devices cannot meet the requirements of high reliability and compre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M13/003G01M17/007
CPCG01M13/00G01M17/007
Inventor 展玮鸿
Owner DENKEI TECH RANDD SHANGHAI CO LTD