CN105547678A - Silencer overpressure resistance test apparatus - Google Patents
Silencer overpressure resistance test apparatus Download PDFInfo
- Publication number
- CN105547678A CN105547678A CN201610010181.5A CN201610010181A CN105547678A CN 105547678 A CN105547678 A CN 105547678A CN 201610010181 A CN201610010181 A CN 201610010181A CN 105547678 A CN105547678 A CN 105547678A
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- CN
- China
- Prior art keywords
- solenoid valve
- water tank
- pressure
- sound suppressor
- gas
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
Abstract
The invention provides a silencer overpressure resistance test apparatus. The apparatus comprises a high-pressure air inlet device, a solenoid valve A, a water tank, a dSPACE controller, a stop valve A, a solenoid valve B, a pressure transducer, a pressure meter and a plug, wherein an air inlet pipe on the water tank is successively provided with the high-pressure air inlet device and the solenoid valve A, and an air outlet pipe of the water tank is provided with the solenoid valve B; a water outlet pipe of the water tank is successively provided with the stop valve A, the pressure transducer and the pressure meter; and the solenoid A and the solenoid B are connected with the dSPACE controller. The high-pressure air inlet device applies high-pressure gas to gas in the water tank, and the gas in the water tank pressurizes water in the water tank so as to pressurize a silencer with one end obstructed; and conduction or closure of the solenoid valve A and the solenoid valve B is controlled through the dSPACE so that the purpose of performing an overpressure resistance test on the silencer is realized. The structure of the apparatus provided by the invention is simple, the control method is effective, such parameters as pressurization time, pressure size and the like can be adjusted, the control precision is high, and the test repeatability can be guaranteed.
Description
Technical field
The invention belongs to sound suppressor field tests, especially relate to a kind of sound suppressor Withstand test device.
Background technology
Sound suppressor allows air-flow to pass through, but can stop or reduce a kind of device of sound transmission, the important measures eliminating air power noise, therefore, in existing motor vehicles, sound suppressor is absolutely necessary parts, and the quality of sound suppressor has to pass through the test of various withstand voltage and intensity.National standard QC/T631-2009 have defined the project of sound suppressor compressive resistance and interior pressure long duration test, and sound suppressor is not carried out to the device of withstand voltage test on the market, and traditional test method adopts solenoid valve, relay and hydraulic pump, install complicated, pressure is difficult to control, cannot the repeatability of warranty test.
Patent 201220343590.4 provides a kind of sound suppressor withstand voltage test checkout equipment, patent 201320136604.X provides a kind of automotive muffler withstand voltage properties testing table, although though these patents can realize the withstand voltage test of sound suppressor to a certain extent, but provide pressure owing to adopting water pump to sound suppressor, pressure can not accurately control, and device is comparatively complicated, need exploitation single-chip microcomputer to control, time cost is larger.
Summary of the invention
There is assembling complexity for sound suppressor Withstand test device in prior art, debug the deficiencies such as loaded down with trivial details, the test period long, test cannot repeat, the invention provides a kind of sound suppressor Withstand test device, the test of sound suppressor compressive resistance and interior pressure endurancing can be realized fast.
The present invention realizes above-mentioned technical purpose by following technological means.
A kind of sound suppressor Withstand test device, comprises high pressure admission equipment, solenoid valve A, water tank, dSPACE controller, stop valve A, solenoid valve B, pressure transducer, tensimeter and stopper; The admission line of water tank is provided with successively high pressure admission equipment and solenoid valve A, the outlet pipe of water tank is provided with solenoid valve B; The outlet conduit of described water tank is provided with stop valve A, pressure transducer and tensimeter successively; Described solenoid valve A is all connected dSPACE controller with solenoid valve B.
Further, described high pressure admission equipment comprises air compressor and gas-holder, and described air compressor and gas-holder are located on water tank air inlet pipeline successively.
Further, in described gas-holder, pressure is 300kPa-700kPa.
Further, air intake opening and the gas outlet of described water tank are positioned at top, and water delivering orifice is positioned at bottom.
Further, described solenoid valve A is 2/2-way normally open solenoid valve.
Further, described solenoid valve B is 2/2-way normally closed solenoid valve.
Further, the admission line between described water tank and gas-holder is provided with stop valve B.
Further, the outlet conduit after described tensimeter is provided with pressure control valve, and described pressure control valve is connected with dSPACE controller.
Further, described stopper is cork.
Beneficial effect of the present invention:
(1) a kind of sound suppressor Withstand test device of the present invention, by arranging the high pressure gas transmission equipment formed with air compressor and gas-holder, water tank, solenoid valve, the devices such as dSPACE controller, utilize gases at high pressure in gas-holder can gas boosting fast in feed-tank, gas in water tank just can water pressurization in feed-tank, thus pressurize to the sound suppressor of one end plug, by the conducting of dSPACE controller Controlling solenoid valve 4 and solenoid valve 8 or turn off and just can realize the test of sound suppressor compressive resistance and interior pressure endurancing fast, greatly shorten the test period.
(2) apparatus of the present invention are installed simple, and owing to being pressurized air, then indirect pressurized water, so pressure limit and pressing time etc., parameter was more prone to adjustment, control accuracy is high, and test is repeatable strong.
(3) the present invention is by arranging stop valve, to realize the easy to maintenance of test unit; By arranging pressure control valve and being connected with dSPACE controller, the top pressure that sound suppressor can bear can be limited.
Accompanying drawing explanation
The schematic diagram of Fig. 1 a kind of sound suppressor Withstand test device of the present invention.
Description of reference numerals is as follows:
1-air compressor, 2-gas-holder, 3-stop valve A, 4-solenoid valve A, 5-water tank, 6-dSPACE controller, 7-stop valve B, 8-solenoid valve B, 9-pressure transducer, 10-tensimeter, 11-pressure control valve, 12-sound suppressor, 13-cork.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, the present invention is further illustrated, but protection scope of the present invention is not limited to this.
As shown in Figure 1, a kind of sound suppressor Withstand test device, comprises air compressor 1, gas-holder 2, solenoid valve A4, water tank 5, dSPACE controller 6, stop valve A7, solenoid valve B8, pressure transducer 9, tensimeter 10 and stopper 13; The upper part of water tank 5 is provided with air intake opening and gas outlet, and lower part is provided with water delivering orifice; The admission line of water tank 5 is provided with successively air compressor 1, gas-holder 2, stop valve B3 and solenoid valve A4, the outlet pipe of water tank 5 is provided with solenoid valve B8; The outlet conduit of described water tank 5 is provided with successively stop valve A7, pressure transducer 9, tensimeter 10 and pressure control valve 11; Described solenoid valve A4, solenoid valve B8 are all connected with dSPACE controller 6 by circuit with pressure control valve 11, solenoid valve A4 is 2/2-way normally open solenoid valve, solenoid valve B8 is 2/2-way normally closed solenoid valve, just can be realized conducting and the shutoff of air inlet pipeline and gas exhaust piping by the switch of Controlling solenoid valve A4 and solenoid valve B8, reach the object of sound suppressor 12 being carried out to withstand voltage test.Air compressor 1 and gas-holder 2 are the devices of the work of cooperatively interacting, and can ensure that pressure in gas-holder 2 is between 300kPa to 700kPa, can gas boosting fast in feed-tank 5.When test unit needs repairing, stop valve A3 can be closed and keep in repair.By closing stop valve B7, with the stopper 13 of cork, one end of sound suppressor being blocked, just can realize the pressurize to sound suppressor.The pressure of water in pressure transducer 9 Real-Time Monitoring pipeline, and transmit signal to dSPACE controller 6.The pressure inside pipeline can be observed by tensimeter 10.Pressure control valve 11 can limit the top pressure of sound suppressor test.
Compressive resistance is tested
When carrying out compressive resistance test, dSPACE controller first keeps solenoid valve A4 path, solenoid valve B8 open circuit, open stop valve A3, stop valve B7, air compressor 1 pressurizes to gas-holder 2, gas-holder 2 feed-tank 5 pressurizes, the pressure of water in pressure transducer 9 Real-Time Monitoring outlet pipeline, and transmits signal to dSPACE controller 6; When pressure transducer 9 detects that hydraulic pressure is 300kPa, the open circuit of dSPACE controller 6 Controlling solenoid valve 4, closes stop valve 7, close air compressor 1, pressurize 30s, the pressure the most at last in water tank 5 is laid down by solenoid valve B8 path, observes sound suppressor 12 with or without distortion.
Interior pressure endurancing
When carrying out interior pressure endurancing, dSPACE controller first keeps solenoid valve A4 path, solenoid valve B8 open circuit, open stop valve A3, stop valve B7, air compressor 1 pressurizes to gas-holder 2, gas-holder 2 feed-tank 5 pressurizes, the pressure of water in pressure transducer 9 Real-Time Monitoring outlet pipeline, and transmits signal to dSPACE controller 6; When pressure transducer 9 detects that hydraulic pressure is 98kPa, dSPACE controller 6 Controlling solenoid valve A4 open circuit, solenoid valve B8 path; When pressure transducer 9 detects that hydraulic pressure reduces to 0kPa, dSPACE controller 6 Controlling solenoid valve A4 path, solenoid valve B8 open circuit, just can realize adding decompression to sound suppressor, then repeat above-mentioned steps, when test number (TN) reaches 20000 times, system quits work automatically, pressure in water tank 5 is laid down, observes sound suppressor 12 with or without breakage; Maximum pressure wherein in pressure control valve restriction sound suppressor is 98kPa.
Described embodiment is preferred embodiment of the present invention; but the present invention is not limited to above-mentioned embodiment; when not deviating from flesh and blood of the present invention, any apparent improvement that those skilled in the art can make, replacement or modification all belong to protection scope of the present invention.
Claims (9)
1. a sound suppressor Withstand test device, it is characterized in that, comprise high pressure admission equipment, solenoid valve A (4), water tank (5), dSPACE controller (6), stop valve A (7), solenoid valve B (8), pressure transducer (9), tensimeter (10) and stopper (13); The admission line of water tank (5) is provided with successively high pressure admission equipment and solenoid valve A (4); The outlet pipe of water tank (5) is provided with solenoid valve B (8); The outlet conduit of described water tank (5) is provided with successively stop valve A (7), pressure transducer (9) and tensimeter (10); Described solenoid valve A (4) is all connected dSPACE controller (6) with solenoid valve B (8).
2. a kind of sound suppressor Withstand test device according to claim 1, it is characterized in that, described high pressure admission equipment comprises air compressor (1) and gas-holder (2), and described air compressor (1) and gas-holder (2) are located on water tank (5) air inlet pipeline successively.
3. a kind of sound suppressor Withstand test device according to claim 2, is characterized in that, in described gas-holder (2), pressure is 300kPa-700kPa.
4. a kind of sound suppressor Withstand test device according to claim 1, is characterized in that, air intake opening and the gas outlet of described water tank (5) are positioned at top, and water delivering orifice is positioned at bottom.
5. a kind of sound suppressor Withstand test device according to claim 1, is characterized in that, described solenoid valve A (4) is 2/2-way normally open solenoid valve.
6. a kind of sound suppressor Withstand test device according to claim 1, is characterized in that, described solenoid valve B (8) is 2/2-way normally closed solenoid valve.
7. a kind of sound suppressor Withstand test device according to claim 1, is characterized in that, the admission line between described water tank (5) and gas-holder (2) is provided with stop valve B (3).
8. a kind of sound suppressor Withstand test device according to claim 1, it is characterized in that, outlet conduit after described tensimeter (10) is provided with pressure control valve (11), and described pressure control valve (11) is connected with dSPACE controller (6).
9. a kind of sound suppressor Withstand test device according to claim 1, is characterized in that, described stopper (13) is cork.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610010181.5A CN105547678A (en) | 2016-01-07 | 2016-01-07 | Silencer overpressure resistance test apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610010181.5A CN105547678A (en) | 2016-01-07 | 2016-01-07 | Silencer overpressure resistance test apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105547678A true CN105547678A (en) | 2016-05-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610010181.5A Pending CN105547678A (en) | 2016-01-07 | 2016-01-07 | Silencer overpressure resistance test apparatus |
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| Country | Link |
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| CN (1) | CN105547678A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106368940A (en) * | 2016-09-29 | 2017-02-01 | 北京宇航系统工程研究所 | Pressurization system for piston pump and implementation method of pressurization system |
| CN106872154A (en) * | 2017-01-20 | 2017-06-20 | 合肥通用机械研究院 | A kind of Low lift safety valve discharge capacity test system and method for testing |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007270712A (en) * | 2006-03-31 | 2007-10-18 | Toyota Motor Corp | Silencer |
| CN101368395A (en) * | 2008-05-07 | 2009-02-18 | 陈鸣 | Pressure accumulation water supply system |
| CN202869783U (en) * | 2012-07-06 | 2013-04-10 | 重庆车辆检测研究院有限公司 | Detection device for silencer pressure test |
| CN203310610U (en) * | 2013-03-22 | 2013-11-27 | 南京南汽冲压件有限公司 | Pressure-resistance performance testboard for automobile silencer |
| CN104833586A (en) * | 2015-05-08 | 2015-08-12 | 大连理工大学 | Novel pressure test system for braided hose |
-
2016
- 2016-01-07 CN CN201610010181.5A patent/CN105547678A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007270712A (en) * | 2006-03-31 | 2007-10-18 | Toyota Motor Corp | Silencer |
| CN101368395A (en) * | 2008-05-07 | 2009-02-18 | 陈鸣 | Pressure accumulation water supply system |
| CN202869783U (en) * | 2012-07-06 | 2013-04-10 | 重庆车辆检测研究院有限公司 | Detection device for silencer pressure test |
| CN203310610U (en) * | 2013-03-22 | 2013-11-27 | 南京南汽冲压件有限公司 | Pressure-resistance performance testboard for automobile silencer |
| CN104833586A (en) * | 2015-05-08 | 2015-08-12 | 大连理工大学 | Novel pressure test system for braided hose |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106368940A (en) * | 2016-09-29 | 2017-02-01 | 北京宇航系统工程研究所 | Pressurization system for piston pump and implementation method of pressurization system |
| CN106872154A (en) * | 2017-01-20 | 2017-06-20 | 合肥通用机械研究院 | A kind of Low lift safety valve discharge capacity test system and method for testing |
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Application publication date: 20160504 |
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