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Exhaust butterfly valve detecting device and method

A detection device and a technology for exhaust butterfly valve, applied in the field of valve detection, can solve the problems of poor detection effect and unreasonable device design, and achieve the effects of easy observation and operation, reduced process layout, and small labor input

Inactive Publication Date: 2019-12-13
ZHEJIANG KELI VEHICLE CONTROL SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the shortcomings of poor detection effect and unreasonable device design in the prior art, the present invention provides a detection device and detection method for an exhaust butterfly valve

Method used

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  • Exhaust butterfly valve detecting device and method
  • Exhaust butterfly valve detecting device and method
  • Exhaust butterfly valve detecting device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The exhaust butterfly valve detection device, as shown in the figure, includes an installation and positioning mechanism 3, and the product to be tested is fixed by the installation and positioning mechanism 3. A test slot 30 is provided in the installation and positioning mechanism 3, and the product to be tested is matched with the notch of the test slot 30 And jointly form a sealed cavity 300, the air outlet of the product to be tested communicates with the sealed cavity 300, and also includes a first air channel 1 and a second air channel 2, the first air channel 1 communicates with the air inlet of the product to be detected and inwardly Gas delivery, the second air channel 2 communicates with the air inlet of the sealed cavity 300 and transmits gas inwardly, the sealed cavity 300 is provided with an air outlet, and also includes a pressure detector 4, the pressure detector 4 and the air outlet of the sealed cavity 300 Connect and detect the air pressure change of t...

Embodiment 2

[0036]Same as Embodiment 1, the difference is that it also includes a controller 6, the controller 6 is connected to the pressure detector 4 and performs identification and analysis on the pressure signal sent by the pressure detector 4, the first solenoid valve 11, the second solenoid valve 21 and the The third solenoid valves 3332 are all connected with the controller 6 and controlled by the controller 6 . The controller 6 is a PLC program controller and is connected to a converted 24V power supply. The controller 6 controls the opening and closing of the first solenoid valve 11, the second solenoid valve 21 and the third solenoid valve 3332, thereby controlling the air intake of the product to be detected, the air intake of the product to be detected, and the clamping device 33 purpose of work.

Embodiment 3

[0038] Same as Embodiment 2, the difference is that it also includes an alarm 7, which is connected to the controller 6, and the alarm 7 is controlled by the controller 6 to give a qualified or unqualified alarm.

[0039] The exhaust butterfly valve detection method includes the exhaust butterfly valve detection device, and the specific steps are as follows:

[0040] 1) Connect the air circuit: connect the air inlet above the product to be tested with the air outlet of the first electromagnetic valve 11, connect the air inlet of the two clamping cylinders 3331 with the air outlet of the third electromagnetic valve 3332 to ensure A plurality of clamping cylinders 333 can act synchronously, connect the air inlet of the sealed chamber 300 with the air outlet of the second electromagnetic valve 21, connect the air outlet of the sealed chamber 300 with the pressure detector 4, the first electromagnetic valve 11, the second The solenoid valve 21 and the third solenoid valve 3332 are...

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Abstract

The invention relates to the field of valve detection, and discloses an exhaust butterfly valve detecting device and method. The device comprises a mounting and positioning mechanism (3), a test groove (30) is formed in the mounting and positioning mechanism (3), an air outlet of a to-be-detected product is communicated with a sealing cavity (300), the device further comprises a first air channel(1) and a second air channel (2), the first air channel (1) is communicated with an air inlet of the to-be-detected product and delivers air inwards, the second air channel (2) is communicated with the sealing cavity (300) and delivers air inwards, and a pressure detector (4) which is connected with an air outlet of the sealing cavity (300) and detects air pressure change of the sealing cavity (300) is further included. Compressed air is used for detecting pressure multiplying of an exhaust butterfly valve, difference between pressure multiplying of the exhaust butterfly valve and actual working pressure multiplying of the exhaust butterfly valve is small, the detection precision is high, misjudgment of the qualified rate of products due to low detection precision is avoided, and a high-precision detection mechanism is provided with a display screen and an alarm.

Description

technical field [0001] The invention relates to the field of valve detection, in particular to an exhaust butterfly valve detection device and a detection method thereof. Background technique [0002] According to the relevant national automobile industry standards and specific requirements of customers, the exhaust butterfly valve assembly needs to be tested for double pressure after assembly; the general exhaust butterfly valve testing device uses compressed air for testing; the traditional exhaust butterfly valve testing device uses compressed air for testing There is a large gap between the detection double pressure and the actual working pressure double of the exhaust butterfly valve, and the detection accuracy is low. Therefore, a detection device for the exhaust butterfly valve with a small gap between the detection double pressure and the actual working pressure double of the exhaust butterfly valve and high detection accuracy is designed. And detection methods, succ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M3/28
CPCG01M3/2876
Inventor 冯华卫吴全旺戴剑波
Owner ZHEJIANG KELI VEHICLE CONTROL SYST
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