CN206095830U - A quick closing device for air bubble - Google Patents
A quick closing device for air bubble Download PDFInfo
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- CN206095830U CN206095830U CN201621169842.0U CN201621169842U CN206095830U CN 206095830 U CN206095830 U CN 206095830U CN 201621169842 U CN201621169842 U CN 201621169842U CN 206095830 U CN206095830 U CN 206095830U
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- piston
- air chamber
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- closing device
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Abstract
The utility model discloses a quick closing device for air bubble, air bubble include high -pressure gas chamber and launching tube, and quick closing device includes the quick closedown air chamber, assists air chamber, " worker " type piston and membrane rupture device, and the quick closedown air chamber cuts off through high -pressure diaphragm between the air chamber with assisting, assist the air chamber and pass through the baffle with high -pressure gas chamber and cut off, and the both ends of " worker " type piston set up respectively in assistance air chamber and high -pressure gas chamber, the membrane rupture device setting in the assistance air chamber just with " worker " type piston fixed connection, the utility model relates to a quick closing device for air bubble triggers the high -pressure diaphragm between subsidiary air chamber and the quick closedown air chamber through membrane rupture device, makes the passageway quick closedown of piston between with high -pressure gas chamber and launching tube to shorten the shock wave malleation operational time of loading to the testpieces, and the parameter through the quick closing device of adjustment, can adjust the operational time of shock wave malleation, realize the same shock wave superpressure peak value loading condition under, the series of different malleation operational times is experimental.
Description
Technical field
The utility model is related to shock-wave analog load test technical field, more particularly to a kind of for the quick of air bubble
Shutoff device.
Background technology
It is such as anti-in national defence and field of industrial production, it is often necessary to carry out shock-wave analog load test to subjects
The impact test of quick-fried building and structure, shock wave load test of protector etc..General explosion wave loading method,
Including direct fieldization it is quick-fried and using blast wave analogue means load.
Blast wave analogue means is that a kind of test that blast wave load test can be carried out to engineering structure, weaponry is used
Device, its type of drive can be driven and drive of high-pressure gas using explosive.In view of the blast wave analogue means that explosive drives
Safe examination and approval procedures are complicated, higher to security of system design requirement, in civil structural shock resistance, Protective Research field, adopt
Drive of high-pressure gas realizes that shock wave loading is a kind of good test method.
Using the blast wave analogue means of drive of high-pressure gas mode, it realizes principle, structure and trigger mechanism and one-level
Air bubble is identical, and main air gun device is made up of transmitting tube, plenum chamber and relieving mechanism (trigger mechanism), both differences
It is：When for explode wave simulation when, do not load bullet between the plenum chamber and transmitting tube of blast wave analogue means.Experiment
When, first to plenum chamber insufflation gas, after gas room pressure reaches certain value, by relieving mechanism high-speed communication high pressure gas
Room and transmitting tube, gases at high pressure are loaded into by testpieces after transmitting tube in specified pilot region, are added on testpieces surface
The shock wave of certain peak overpressure and certain positive pressure time is carried, so as to complete blast wave load test.
But main air big gun structure yet suffers from the application a prominent question for the technology of the wave simulation that explodes：Base
In the blast wave analogue means of air bubble technology, the pressure of adjustment plenum chamber can be passed through, realize positive pressure of shock wave peak value P's
It is controllable；But, once shaping, the positive pressure time t of shock wave is uncontrollable in test, is illustrated in figure 1 and acts on for apparatus structure
Shock wave oscillogram on testpieces.
Based on the blast wave analogue means of main air big gun structure, reach to make to act on the positive pressure of shock wave on testpieces
Certain peak value P, needs the volume V according to plenum chamber0And the volume V of transmitting tube1, according to the equation of gas state high pressure is determined
The blowing pressure P of air chamber0, the equation of gas state is：
Wherein γ is gas adiabatic coefficent.When the timing of air bubble structure one, to reach peak overpressure P, height can be calculated
The pressure P of plenum chamber0。
After air bubble is manufactured and is assembled, volume V of plenum chamber0It is fixed, and the bore that high pressure gas indoor gas flow out
Fixed, this allows for certain pressure P0Gases at high pressure determine that i.e. shock wave positive pressure time t consolidates by time of transmitting tube
It is fixed.For common main air big gun, larger positive pressure of shock wave peak value P, the pressure P in plenum chamber are not obtained0It is larger, lead
The time for causing gas release in gases at high pressure is positive pressure time typically in second-time.And the positive pressure that conventional explosives are produced
Time, this was caused based on the blast wave analogue means of main air big gun structure typically in a few tens of milliseconds level, it is difficult to for simulating often
The shock wave that rule explosive charge is produced.
Utility model content
The purpose of this utility model is that and provide a kind of quick closedown for air bubble in order to solve the above problems
Device.
The utility model is achieved through the following technical solutions above-mentioned purpose：
A kind of rapid-closing device for air bubble, the air bubble includes plenum chamber and transmitting tube, described quick
Shutoff device, the plenum chamber and the transmitting tube serial communication, the rapid-closing device includes quick closedown air chamber, auxiliary
Air chamber, " work " type piston and membrane-repturing device, the quick closedown air chamber, the auxiliary air chamber and the plenum chamber are sequentially connected, institute
State and separated by high pressure diaphragm between quick closedown air chamber and the auxiliary air chamber, the auxiliary air chamber and the plenum chamber are by gear
Plate separates, and the baffle center is provided with through hole, and " work " the type piston passes through the through hole, and the two of " work " the type piston
End is separately positioned in the auxiliary air chamber and the plenum chamber, the membrane-repturing device be arranged in the auxiliary air chamber and with it is described
" work " type piston is fixedly connected；
" work " the type piston includes relief piston, piston rod and sealing piston, and the relief piston is arranged on described auxiliary
In air chamber, and the auxiliary air chamber is divided into into pressure regulating cavity and damping cavity, the membrane-repturing device is located in the pressure regulating cavity, and with it is described
Relief piston is fixedly connected, and the sealing piston is arranged in the plenum chamber, and coaxial with the air inlet of the transmitting tube
Arrange, the first end of the piston rod is fixedly connected with the relief piston, the second end of the piston rod passes through the through hole
It is fixedly connected with the sealing piston；
Specifically, the diameter of the relief piston is equal with the internal diameter of the auxiliary air chamber, and the relief piston is auxiliary with described
The madial wall sealing slidable connection of air chamber, the diameter of the piston rod is equal with the internal diameter of the through hole, the piston rod with
The madial wall sealing slidable connection of the through hole, in the air inlet with diameter greater than the transmitting tube of the sealing piston
Footpath.
Preferably, the tracheae being connected with the quick closedown air chamber, the pressure regulating cavity, the damping cavity and the high pressure chest
On be respectively arranged with quick closedown air valve, pressure regulation air valve, damping air valve and High-pressure air valve.
Further, the membrane-repturing device is connected with the relief piston by adjusting screw.
The beneficial effects of the utility model are：
A kind of rapid-closing device for air bubble of the utility model triggers auxiliary air chamber and quick closedown by membrane-repturing device
High pressure diaphragm between air chamber, makes piston by the passage quick closedown between plenum chamber and transmitting tube, is loaded into so as to shorten
Shock wave positive pressure time on testpieces, and by adjusting the parameter of rapid-closing device, shock wave malleation can be adjusted
Action time, under realizing uniform impingement ripple peak overpressure loading environment, the campaign of different positive pressure times.
Description of the drawings
Fig. 1 is that a kind of air bubble of rapid-closing device for air bubble described in the utility model acts on testpieces
Shock wave oscillogram；
Fig. 2 is a kind of structural representation of rapid-closing device for air bubble described in the utility model；
Fig. 3 is the structural representation of air bubble described in the utility model；
Specific embodiment
Below in conjunction with the accompanying drawings the utility model is described in further detail：
As shown in Figures 2 and 3, a kind of rapid-closing device for air bubble of the utility model, air bubble includes high pressure
Air chamber and transmitting tube, rapid-closing device, plenum chamber and transmitting tube serial communication, rapid-closing device includes quick closedown gas
Room, auxiliary air chamber, " work " type piston and membrane-repturing device, quick closedown air chamber, auxiliary air chamber and plenum chamber are sequentially connected, quick closedown gas
Separated by high pressure diaphragm between room and auxiliary air chamber, auxiliary air chamber and plenum chamber are separated by baffle plate, and baffle center is provided with logical
Hole, " work " type piston passes through through hole, and the two ends of " work " type piston to be separately positioned in auxiliary air chamber and plenum chamber, and membrane-repturing device sets
Put in auxiliary air chamber and be fixedly connected with " work " type piston；
" work " type piston includes relief piston, piston rod and sealing piston, and relief piston is arranged in auxiliary air chamber, and will be auxiliary
Air chamber is divided into pressure regulating cavity and damping cavity, and membrane-repturing device is located in pressure regulating cavity, and is fixedly connected with relief piston, and sealing piston is arranged
In plenum chamber, and it is coaxially disposed with the air inlet of transmitting tube, the first end of piston rod is fixedly connected with relief piston, piston
Second end of bar is fixedly connected through through hole with sealing piston；
The diameter of relief piston is equal with the internal diameter of auxiliary air chamber, and relief piston slidably connects with the madial wall sealing of auxiliary air chamber
Connect, the diameter of piston rod is equal with the internal diameter of through hole, piston rod seals slidable connection with the madial wall of through hole, sealing piston
With diameter greater than the internal diameter of the air inlet of transmitting tube, on the tracheae being connected with quick closedown air chamber, pressure regulating cavity, damping cavity and high pressure chest
Quick closedown air valve, pressure regulation air valve, damping air valve and High-pressure air valve are respectively arranged with, membrane-repturing device passes through adjustable spiral shell with relief piston
Bar connects.
A kind of operation principle of the rapid-closing device for air bubble of the utility model is as follows：
Step 1)：By pressure regulation air valve to insufflation gas in pressure regulating cavity so that pressure regulation cavity pressure P2More than gas in damping cavity
Pressure P1, and：
P2×S2>P1×S1
Now, relief piston is bullied and presses to front movement, until sealing piston compresses and block the air inlet of transmitting tube, is closed
Plenum chamber, S are closed2For relief piston and the contact area of pressure regulating cavity, S1For relief piston and the contact area of damping cavity；
Step 2)：By High-pressure air valve to insufflation gas in plenum chamber so that high pressure gas room pressure reaches test institute
Need pressure P0；
Step 3)：Gases at high pressure are filled with into quick closedown air chamber by quick closedown air valve so that quick closedown air chamber
Interior air pressure reaches P3, and P3Less than the burst pressure of high pressure diaphragm；
Step 4)：Pressure regulation intracavity gas are quickly discharged by pressure regulation air valve so that pressure regulating cavity inner high voltage gas is quickly arranged
Go out, pressure regulation cavity pressure P2P ' is dropped to rapidly2, then piston left and right sides pressure differential is anti-phase, and has
P′2×S2<P1×S1
Now piston is rearward moved rapidly, and sealing piston leaves the air inlet of transmitting tube, and high pressure gas indoor gas are at once
Into transmitting tube, it is loaded on the testpieces in front of transmitting tube by transmitting tube.
In actual tests, by the length for changing adjusting screw, can adjust after air bubble opens fire with artillery, sealing-plug 17 leaves
The air inlet of transmitting tube 14 clashes into the time t of high pressure diaphragm 3 to membrane-repturing device 61；
Change the pressure P of quick closedown air chamber 13, can adjust during quick closedown, air pressure P in damping cavity "2, from
And change the mobile speed in the right side of piston 16, and then adjustment membrane-repturing device 6 clashes into high pressure diaphragm 3 and compresses transmitting tube 14 to sealing-plug 17
The time t of interface2.Two times above determines the unlatching duration t of air bubbleon=t1+t2, and be loaded on testpieces 15
Shock wave positive pressure time t is proportional to the unlatching duration t of air bubbleon.Conventional air big gun is that do not have closing function.
By the air bubble in the utility model when blast wave simulated test is carried out, this patent with quick closedown work(
Can air bubble, it is possible to achieve air bubble open fire with artillery after quick closedown, shock wave positive pressure time is reduced, such that it is able to mould
Intend the shock wave that conventional explosives blast is produced.In addition, by adjusting above-mentioned two parameter, being capable of achieving air bubble open-interval can
Adjust, and then realize the adjustable of shock wave positive pressure time.Compared to conventional air big gun structure, this patent has quick closedown work(
The air bubble of energy, explode the shock-wave analog for producing more suitable for conventional explosives.
Main structure of the present utility model：
(1) air bubble with quick closedown function of this patent, with quick closedown air chamber 1, and quick closedown air chamber 1
Separated by high pressure diaphragm 3 between auxiliary air chamber discharge chamber 5, quick closedown air chamber 1 is imported and exported with gases at high pressure；
(2) air bubble with quick closedown function of this patent, the piston 16 of its triggering, by the spiral shell of adjustable-length
Bar is connected with membrane-repturing device 6；
(3) air bubble with quick closedown function of this patent, after satisfaction opens fire with artillery requirement, by the auxiliary gas of quick release
The inner high voltage gas of room discharge chamber 5, realizes the quick unlatching of the mechanism of piston 16；The membrane-repturing device 6 opened fire with artillery on rear piston 16 clashes into high pressure
Diaphragm 3, the gases at high pressure of quick closedown air chamber 1 cause the counter motion of piston 16, sealing-plug 17 quickly to block transmitting tube 14, realize
The quick closedown of air bubble；
(4) air bubble with quick closedown function of this patent, adopts adjusting screw 8 between piston 16 and membrane-repturing device 6
Connection, the length of adjusting screw 8 is variable so that the time for opening fire with artillery the shock high pressure diaphragm 3 of rear membrane-repturing device 6 is adjustable；
(5) air bubble with quick closedown function of this patent, the pressure adjustable in quick closedown air chamber 1 so that high
After pressuring film plate 3 ruptures, the heterodromous speed of the mechanism of piston 16 is adjustable；
(6) air bubble with quick closedown function of this patent, employs rapid-closing device so that air bubble is opened fire with artillery
Afterwards the sealing-plug 17 in the mechanism of piston 16 fast automatic can close transmitting tube 14, and the unlatching duration of air bubble can be by quick pass
Hold one's breath the pressure of room 1 and the length of adjusting screw 8 to adjust.
Preferred embodiment of the present utility model is these are only, it is all in this practicality not to limit the utility model
Any modification, equivalent and improvement made within new spirit and principle etc., should be included in guarantor of the present utility model
In the range of shield.
Claims (4)
1. a kind of rapid-closing device for air bubble, the air bubble includes plenum chamber and transmitting tube, it is characterised in that：
The rapid-closing device, the plenum chamber and the transmitting tube serial communication, the rapid-closing device includes quick pass
Hold one's breath room, auxiliary air chamber, " work " type piston and membrane-repturing device, the quick closedown air chamber, the auxiliary air chamber and the plenum chamber according to
Secondary connection, by high pressure diaphragm cut-off, the auxiliary air chamber and the high pressure between the quick closedown air chamber and the auxiliary air chamber
Air chamber is separated by baffle plate, and the baffle center is provided with through hole, and " work " the type piston passes through the through hole, and " work "
The two ends of type piston are separately positioned in the auxiliary air chamber and the plenum chamber, and the membrane-repturing device is arranged in the auxiliary air chamber
And be fixedly connected with " work " the type piston；
" work " the type piston includes relief piston, piston rod and sealing piston, and the relief piston is arranged on the auxiliary air chamber
Interior, and the auxiliary air chamber is divided into into pressure regulating cavity and damping cavity, the membrane-repturing device is located in the pressure regulating cavity, and with the pressure regulation
Piston is fixedly connected, and the sealing piston is arranged in the plenum chamber, and is coaxially disposed with the air inlet of the transmitting tube,
The first end of the piston rod is fixedly connected with the relief piston, the second end of the piston rod through the through hole with it is described
Sealing piston is fixedly connected.
2. a kind of rapid-closing device for air bubble according to claim 1, it is characterised in that：The relief piston
Diameter it is equal with the internal diameter of the auxiliary air chamber, the madial wall of the relief piston and the auxiliary air chamber seals slidable connection,
The diameter of the piston rod is equal with the internal diameter of the through hole, and the piston rod slidably connects with the madial wall sealing of the through hole
Connect, the internal diameter of the air inlet with diameter greater than the transmitting tube of the sealing piston.
3. a kind of rapid-closing device for air bubble according to claim 2, it is characterised in that：With the quick pass
Hold one's breath room, the pressure regulating cavity, the damping cavity and the high pressure chest connection tracheae on be respectively arranged with quick closedown air valve, adjust
Pressure valve, damping air valve and High-pressure air valve.
4. a kind of rapid-closing device for air bubble according to claim 2, it is characterised in that：The membrane-repturing device with
The relief piston is connected by adjusting screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621169842.0U CN206095830U (en) | 2016-10-26 | 2016-10-26 | A quick closing device for air bubble |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621169842.0U CN206095830U (en) | 2016-10-26 | 2016-10-26 | A quick closing device for air bubble |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206095830U true CN206095830U (en) | 2017-04-12 |
Family
ID=58486558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621169842.0U Expired - Fee Related CN206095830U (en) | 2016-10-26 | 2016-10-26 | A quick closing device for air bubble |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206095830U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106353206A (en) * | 2016-10-26 | 2017-01-25 | 中国工程物理研究院总体工程研究所 | Rapid closing device for air cannon |
| CN115479848A (en) * | 2022-08-25 | 2022-12-16 | 哈尔滨工程大学 | Test device for simulating loading impact uniform load |
| CN116165089A (en) * | 2023-04-26 | 2023-05-26 | 常州市格雷特化工工程有限公司 | Diaphragm impact test device for phosphorus pentafluoride gas generator |
-
2016
- 2016-10-26 CN CN201621169842.0U patent/CN206095830U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106353206A (en) * | 2016-10-26 | 2017-01-25 | 中国工程物理研究院总体工程研究所 | Rapid closing device for air cannon |
| CN106353206B (en) * | 2016-10-26 | 2023-08-18 | 中国工程物理研究院总体工程研究所 | Quick closing device for air cannon |
| CN115479848A (en) * | 2022-08-25 | 2022-12-16 | 哈尔滨工程大学 | Test device for simulating loading impact uniform load |
| CN116165089A (en) * | 2023-04-26 | 2023-05-26 | 常州市格雷特化工工程有限公司 | Diaphragm impact test device for phosphorus pentafluoride gas generator |
| CN116165089B (en) * | 2023-04-26 | 2023-07-25 | 常州市格雷特化工工程有限公司 | Diaphragm impact test device for phosphorus pentafluoride gas generator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170412 Termination date: 20191026 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |