CN202041118U - Air floatation piston type launching device - Google Patents

Air floatation piston type launching device Download PDF

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Publication number
CN202041118U
CN202041118U CN 201120131530 CN201120131530U CN202041118U CN 202041118 U CN202041118 U CN 202041118U CN 201120131530 CN201120131530 CN 201120131530 CN 201120131530 U CN201120131530 U CN 201120131530U CN 202041118 U CN202041118 U CN 202041118U
Authority
CN
China
Prior art keywords
air
piston
cylinder
pressure
storage chamber
Prior art date
Application number
CN 201120131530
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Chinese (zh)
Inventor
郭伟国
Original Assignee
西北工业大学
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Application filed by 西北工业大学 filed Critical 西北工业大学
Priority to CN 201120131530 priority Critical patent/CN202041118U/en
Application granted granted Critical
Publication of CN202041118U publication Critical patent/CN202041118U/en

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Abstract

The utility model discloses an air floatation piston type launching device, which is used for solving the technical problem that a traditional launching device has a complex structure. The air floatation piston type launching device comprises a cannon pipe (6), a piston (10), an air storage chamber connecting pipe (17) and an air cylinder (22). The air floatation piston type launching device is characterized by also comprising an air source valve (19), an air inlet/outlet switch valve (20), an air inlet/outlet pipe (21) and an O-shaped ring (26). Due to an air floatation piston structure in which the piston is floated by air and work is performed through pressure difference between the two sides of the air floatation piston, the structure of the launching device is simpler. The air floatation piston moves at a high speed, is flexibly operated and is high in reliability, so the problem of piston movement resistance is solved. The air floatation piston moves quickly when the launching device launches and the primary opening amount when high-pressure air enters the cannon pipe is large, so a constant pressure and constant acceleration process when the high-pressure air enters the cannon pipe to propel a bomb body or a bird bullet is ensured.

Description

Air floating piston formula emitter

Technical field

The utility model relates to a kind of emitter, particularly a kind of air floating piston formula emitter.

Background technology

With reference to Fig. 2, document 1 " the one-level light-gas gun that is used for the material impacts experiment; blast and impact [J]; 13 (1) (1993) 90-96 " discloses a kind of one-level light-gas gun device of launching bullet, and this device comprises air chamber 1, rear film 2, pilot valve 3, front diaphragm 4, bullet 5, gun tube 6, fragmentation chamber 7.Rear film 2 and front diaphragm 4 are installed with fragmentation chamber 7 inner wall sealings.During emission bullet 5, earlier air chamber 1 is injected preset pressure p, at this moment open pilot valve 3, pressure reduces rapidly between rear film 2 and the front diaphragm 4, this moment, rear film 2 pressure at both sides differences increased thereupon, rear film 2 breaks when increasing to certain numerical value, and air chamber 1 mesohigh gas is the instantaneous front diaphragm 4 of breaking up directly, promotes bullet 5 and moves along gun tube 6.

With reference to Fig. 3, document 2 " the impact type guiding valve is opened fire with artillery the research and the design of mechanism; machine-building [J]; 44 (500) (2006) 26-28 " discloses a kind of air bubble of launching the bird bullet and has opened fire with artillery mechanism, and this mechanism comprises that gun tube 6, gas shutoff head 8, piston rod 9, piston 10, little air inlet duct 11, air inlet connect mouth 12, venting connects mouth 13, air chamber 14, high pressure chest 15, air cavity 16, air storage chamber tube connector 17, spring 18 and cylinder 22.The assembly relation requirement, gas shutoff head 8 seals with gun tube 6 terminations, high pressure chest 15 is with air cavity 16 sealings and gas is not ganged up, piston 10 is communicated with high pressure chest 15 gas circuits by little air inlet duct 11 with cylinder 22 inner wall sealings, air chamber 14.During work, the first step, connect mouth 12 to air chamber 14 inflations by air inlet, air chamber 14 internal pressures raise rapidly, and in the process that air chamber 14 pressure raise, the pressure of high pressure chest 15 also slowly rises, because of little air inlet duct 11 pores of high pressure chest 15 very little, and there is spring 18 to withstand,, is set at 1.3MPa so in gas replenishment process, reach at last and maintain high pressure chest 15 force value; Second step.Be inflated to setting to the air cavity 16 that is connected with air storage chamber tube connector 17; The 3rd step, opening venting and connecing mouth 13, make the unexpected vanishing of air chamber 14 air pressure.This moment is because air chamber 14 air pressure are zero, and the air pressure of high pressure chest 15 still is 1.3MPa, and at this moment piston 10 connects the motion of mouth 13 directions to venting fast, and the gas in the air accumulator enters gun tube 6 fast by air storage chamber tube connector 17, finishes air bubble and opens fire with artillery process.

In fact, realize body or bird bullet are accelerated to default speed along gun tube 6, mainly be requirement open fire with artillery mechanism moment valve opening want big, and speed wants fast.Document 2 described methods are simple, but very high to the requirement of rear film 2 and front diaphragm 4, will know diaphragm fragmentation under many high pressures in advance, and diaphragm is made and installed pretty troublesome; Document 3 operation principles are reasonable, but owing to require high pressure chest 15 with air cavity 16 sealings and gas is not ganged up, piston 10 and cylinder 22 inner wall sealings, this is actual cause piston 10 at the volley resistance increase, if when the pressure that fruit is tested was low, air chamber 14 pressure were just low, piston 10 resistances of motion are bigger, for fear of this situation, naturally just need another high-pressure air source to connect mouth 12 by air inlet and add more high pressure for high pressure chest 15 to air chamber 14, document 3 described structures are complicated simultaneously, require the machining accuracy height.

Summary of the invention

In order to overcome the baroque deficiency of existing emitter, the utility model provides a kind of air floating piston formula emitter, by the design of air floating piston, uses the gas floating piston, utilize the pressure differential work of air floating piston both sides, can make the emitter structure simpler.The air floating piston high-speed motion, flexible operation, the reliability height can be avoided piston resistance of motion problem.And the air floating piston motion is fast during emission, and the initial openings amount that gases at high pressure enter gun tube is big, can guarantee that gases at high pressure enter gun tube promotion body or bird egg is a constant pressure and constant accelerator.

The technical scheme that its technical problem that solves the utility model adopts is: a kind of emitter, and gun tube 6, piston 10, air storage chamber tube connector 17 and cylinder 22 are characterized in also comprising source of the gas valve 19, advance/air escape cock valve 20, advance/bleeder pipe 21 and O type circle 26; Described cylinder 22 shapes are the outer squares of interior circle, and cylinder inner wall grinds smooth; Cylinder 22 right parts and gun tube 6 are connected by flange, and cylinder 22 is provided with air storage chamber tube connector 17 near a side of right-hand members, and air storage chamber tube connector 17 is communicated with air cavity 16; Gun tube 6 internal diameters and air storage chamber tube connector 17 internal diameters etc. are big; Cylinder 22 is built-in with a piston 10, described piston 10 is air floating piston, hollow, variable cross-section type, piston 10 is smooth smooth near the end face of gun tube 6, contact with O type circle 26 sealings on being embedded in cylinder 22, piston 10 is reserved with the gap with cylinder 22 inwalls, and the minimum sectional area of this gap is less than advancing/the interior sectional area of bleeder pipe 21, and is bigger near the gap of air cavity 16 1 ends; Piston 10 is along the internal diameter of air chamber 14 move distances greater than gun tube 6; The areas of section of gun tube 6 interior areas of section, air storage chamber tube connector 17 interior areas of section and air cavity 16 etc. are big; Advance/bleeder pipe 21 is connected with cylinder 22, and is connected with air chamber 14, advance/be provided with/air escape cock valve 20 between bleeder pipe 21 and the source of the gas valve 19; Advance/when air escape cock valve 20 is communicated with air chamber 14 with outside atmosphere, close and being connected of source of the gas valve 19.

The beneficial effects of the utility model are: owing to adopt the air floating piston structure, use the gas floating piston, utilize the pressure differential work of air floating piston both sides, make that the emitter structure is simpler.The air floating piston high-speed motion, flexible operation, the reliability height has been avoided piston resistance of motion problem.And the air floating piston motion is fast during emission, and the initial openings amount that gases at high pressure enter gun tube is big, has guaranteed that gases at high pressure enter gun tube promotion body or bird egg is a constant pressure and constant accelerator.

Below in conjunction with drawings and Examples the utility model is elaborated.

Description of drawings

Fig. 1 is the structure chart of the utility model air floating piston formula emitter.

Fig. 2 is the structure chart of document 1 rupture of membranes formula emitter.

Fig. 3 is the structure chart that document 2 impact type guiding valves are opened fire with artillery mechanism arrangement.

Among the figure, the 1-air chamber; The 2-rear film; The 3-pilot valve; The 4-front diaphragm; The 5-bullet; The 6-gun tube; 7-fragmentation chamber; 8-gas shutoff head; The 9-piston rod; The 10-piston; The little air inlet of 11-duct; The 12-air inlet connects mouth; The 13-venting connects mouth; The 14-air chamber; The 15-high pressure chest; The 16-air cavity; 17-air storage chamber tube connector; The 18-spring; 19-source of the gas valve; 20-advances/the air escape cock valve; 21-advances/bleeder pipe; The 22-cylinder; The 23-Pressure gauge; The 24-rubber blanket; 26-O type circle.

The specific embodiment

With reference to Fig. 1, the utility model air floating piston formula emitter comprises bullet 5, gun tube 6, air storage chamber tube connector 17, source of the gas valve 19, advances/air escape cock valve 20, advances/bleeder pipe 21, cylinder 22, Pressure gauge 23, rubber blanket 24 and O type circle 26.Cylinder 22 inside are cylindrical shape, and cylinder inner wall grinds smooth, and install for square being convenient to cylinder 22 outsides, and cylinder 22 integral body are made by high strength steel.Cylinder 22 right parts and gun tube 6 are connected by flange, and cylinder 22 is provided with air storage chamber tube connector 17 near a side of right-hand members, and air storage chamber tube connector 17 is communicated with air cavity 16.Gun tube 6 internal diameters and air storage chamber tube connector 17 internal diameters etc. are big, cylinder 22 is built-in with a piston 10, described piston 10 is air floating piston, hollow, variable cross-section type, piston 10 is smooth smooth near the end face of gun tubes 6, contact with O type circle 26 sealings on being embedded in cylinder 22, and piston 10 and cylinder 22 inwalls are reserved with the gap, the minimum sectional area of this gap is less than advancing/the interior sectional area of bleeder pipe 21, and is bigger near the gap of air cavity 16 1 ends; Piston 10 left parts are pasted with rubber blanket 24, and whole piston 10 is made by aluminium alloy.Piston 10 is along the internal diameter of air chamber 14 move distances greater than gun tube 6; The areas of section of gun tube 6 interior areas of section, air storage chamber tube connector 17 interior areas of section and air cavity 16 etc. are big.Advance/bleeder pipe 21 is connected with cylinder 22, and is connected with air chamber 14, advance/be provided with/air escape cock valve 20 between bleeder pipe 21 and the source of the gas valve 19.Advance/when air escape cock valve 20 is communicated with air chamber 14 with outside atmosphere, close and being connected of source of the gas valve 19.

During work: at first open source of the gas valve 19, to advance/air escape cock valve 20 is switched to air chamber 14, gases at high pressure by advance/air escape cock valve 20 enters in the air chamber 14, enter in the process at gas, owing to advance/the interior sectional area of bleeder pipe 21 is greater than the sectional area of piston 10 with cylinder 22 inwall preset clearances, can cause gases at high pressure to promote piston 10 like this and move right, piston 10 be moved right with O type circle 26 contact sealing, gases at high pressure enter into air cavity 16 by air storage chamber tube connector 17 like this.When Pressure gauge 23 points out that the pressure of air cavity 16 reaches the predetermined value of establishing, close source of the gas valve 19.When needing emission bullet 5, to advance/20 groups on air escape cock valve puts with outside atmosphere and is connected, at this moment owing to advance/the interior sectional area of bleeder pipe 21 is greater than the sectional area of piston 10 with cylinder 22 inwall preset clearances, piston rapid emptying of 10 left side air chambers, 14 air pressure and reduction, gas pressure in the air cavity 16 is on piston 10, piston 10 left and right sides action of pressure, and the gas of air cavity 16 is along piston 10 gap flow at high speed, play pneumatically supported effect, make piston 10 move right the left end of air chamber 14 rapidly, and rubber blanket 24 bufferings since piston 10 at a high speed to impact that left movement brought.The air storage chamber Pneumatic pipe cleaner was crossed air storage chamber tube connector 17 air cavity 16 of flowing through and was entered and promote bullet 5 in the gun tube 6 and launch along gun tube this moment.

Claims (4)

1. an air floating piston formula emitter comprises gun tube (6), piston (10), air storage chamber tube connector (17) and cylinder (22), it is characterized in that also comprising source of the gas valve (19), advances/air escape cock valve (20), advances/bleeder pipe (21) and O type circle (26); Described cylinder (22) shape is the outer square of interior circle, and cylinder inner wall grinds smooth; Cylinder (22) right part is connected by flange with gun tube (6), and cylinder (22) is provided with air storage chamber tube connector (17) near a side of right-hand member, and air storage chamber tube connector (17) is communicated with air cavity (16); Gun tube (6) internal diameter and air storage chamber tube connector (17) internal diameter etc. are big; Cylinder (22) is built-in with a piston (10), described piston (10) is an air floating piston, hollow, variable cross-section type, piston (10) is smooth smooth near the end face of gun tube (6), contact with O type circle (26) sealing on being embedded in cylinder (22), piston (10) and cylinder (22) inwall are reserved with the gap, and the minimum sectional area of this gap is less than advancing/the interior sectional area of bleeder pipe (21), and is bigger near the gap of air cavity (16) one ends; Piston (10) is along the internal diameter of air chamber (14) move distance greater than gun tube (6); The areas of section of the interior area of section of gun tube (6), the interior area of section of air storage chamber tube connector (17) and air cavity (16) etc. are big; Enter/bleeder pipe (21) and be connected, and be connected, advance/bleeder pipe between (21) and the source of the gas valve (19) to be provided with/air escape cock valve (20) with air chamber (14) with cylinder (22); Advance/air escape cock valve (20) is with air chamber (14) when being communicated with outside atmosphere, closes and being connected of source of the gas valve (19).
2. air floating piston formula emitter according to claim 1 is characterized in that: described cylinder (22) material therefor is a high strength steel.
3. air floating piston formula emitter according to claim 1 is characterized in that: described piston (10) left part is pasted with rubber blanket (24).
4. according to claim 1 or 3 described air floating piston formula emitters, it is characterized in that: described piston (10) material therefor is an aluminium alloy.
CN 201120131530 2011-04-28 2011-04-28 Air floatation piston type launching device CN202041118U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201120131530 CN202041118U (en) 2011-04-28 2011-04-28 Air floatation piston type launching device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201120131530 CN202041118U (en) 2011-04-28 2011-04-28 Air floatation piston type launching device

Publications (1)

Publication Number Publication Date
CN202041118U true CN202041118U (en) 2011-11-16

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Family Applications (1)

Application Number Title Priority Date Filing Date
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CN (1) CN202041118U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102252562A (en) * 2011-04-28 2011-11-23 西北工业大学 Air-float piston type launcher
CN106840586A (en) * 2016-12-30 2017-06-13 中国航天空气动力技术研究院 A kind of piston emitter
CN108469451A (en) * 2018-03-22 2018-08-31 中国工程物理研究院化工材料研究所 A kind of explosive material is hit and disintegrating slag retracting device
CN109059643A (en) * 2018-07-27 2018-12-21 西北工业大学 A kind of air bubble negative pressure trigger mechanism

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102252562A (en) * 2011-04-28 2011-11-23 西北工业大学 Air-float piston type launcher
CN102252562B (en) * 2011-04-28 2013-08-14 西北工业大学 Air-float piston type launcher
CN106840586A (en) * 2016-12-30 2017-06-13 中国航天空气动力技术研究院 A kind of piston emitter
CN106840586B (en) * 2016-12-30 2019-04-09 中国航天空气动力技术研究院 A kind of piston emitter
CN108469451A (en) * 2018-03-22 2018-08-31 中国工程物理研究院化工材料研究所 A kind of explosive material is hit and disintegrating slag retracting device
CN108469451B (en) * 2018-03-22 2020-11-03 中国工程物理研究院化工材料研究所 Explosive material striking and disintegrating slag recovery unit
CN109059643A (en) * 2018-07-27 2018-12-21 西北工业大学 A kind of air bubble negative pressure trigger mechanism
CN109059643B (en) * 2018-07-27 2020-06-16 西北工业大学 Negative pressure launching mechanism of air cannon

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AV01 Patent right actively abandoned

Granted publication date: 20111116

Effective date of abandoning: 20130814

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