CN107061050A - A kind of pulse rifle - Google Patents
A kind of pulse rifle Download PDFInfo
- Publication number
- CN107061050A CN107061050A CN201710261984.2A CN201710261984A CN107061050A CN 107061050 A CN107061050 A CN 107061050A CN 201710261984 A CN201710261984 A CN 201710261984A CN 107061050 A CN107061050 A CN 107061050A
- Authority
- CN
- China
- Prior art keywords
- housing
- pressure ring
- cavity
- pulse rifle
- medicine
- Prior art date
- 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.)
- Granted
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02K—JET-PROPULSION PLANTS
- F02K9/00—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof
- F02K9/96—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof characterised by specially adapted arrangements for testing or measuring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B3/00—Blasting cartridges, i.e. case and explosive
- F42B3/10—Initiators therefor
- F42B3/12—Bridge initiators
Abstract
The present invention relates to a kind of pulse rifle, it is specially adapted for the experimental rig of low thrust rail attitude control liquid-rocket combustion stability assessment.Solution traditional pulse rifle propagation of explosion link is more, time-consuming, baroque technical problem.The pulse rifle provided, including priming device and housing unit；Priming device includes initiator body, pressure ring and drug blocking；The output end of initiator body is boss, the centrally disposed stepped hole of boss；Above-mentioned pressure ring is fixedly mounted in the macropore cavity of the stepped hole；Above-mentioned drug blocking is arranged on the macropore exit of the stepped hole and is sealingly mounted on pressure ring；Filling originates filling output medicine in medicine, the cavity of above-mentioned pressure ring in the cavity of the aperture of above-mentioned stepped hole；Above-mentioned housing unit includes housing and explosion diaphragm；The union end that one end of housing cavity has been enlarged-diameter, the output end boss thread connection of above-mentioned union end and initiator body；Explosion diaphragm is sealingly disposed in the housing cavity other end.
Description
Technical field
The present invention relates to a kind of examination for being specially adapted for low thrust rail attitude control liquid-rocket combustion stability assessment
Experiment device, more particularly to a kind of pulse rifle.
Background technology
It is that missile armament and spacecraft do a variety of maneuvering flights in space and provide power that low thrust liquid-propellant rocket engine, which is,
Propulsion plant, it is mainly used in orbits controlling, gesture stability, the docking of spacecraft and intersection, landing etc..Its work characteristics is
Change thrust in the multiple starting impulse work of space environment, its thrust is smaller, and minimum pulse width is millisecond.Low thrust rail attitude control
Liquid Propellant Rocket Engine be widely used in grapefruit satellite tracks positioned, pose adjustment, small aircraft flight control and it is small
Repair and be accurately positioned in type guided missile end.
The periodic swinging burnt in rocket chamber, with the vibration of gaseous-pressure, temperature and speed, leads to
Often characterized with the periodic swinging of pressure.When there is combustion instability, gaseous-pressure vibration has obvious periodicity
And large magnitude.Combustion instability may aggravate engine luggine, increase engine heat load, so that engine components meet with
To destruction or ablation, flash disruption engine, delivery system especially bringing on a disaster property of manned space flight delivery system consequence is given.
In order to test the combustion instability of actual liquid rocket engine and detect that it resists combustion instability
Ability, it is necessary to carry out the combustion instability experiment of actual rocket engine.Conventional test method is in the actual work of engine
When making, external pulse disturbance, response of the measurement combustion chamber to this pulsation, so as to obtain artificially are added from combustion chamber ad-hoc location
Obtain engine combustion unstability information.
As the traditional pulse rifle of artificial exciting bank, mainly by the igniter with detonation function, housing, fire powder,
Explosion diaphragm is constituted, and is wherein had in igniter in priming and output medicine, housing and is set special medicine chamber to be used for loading fire powder,
Cavity is set respectively between fire powder and igniter, explosion diaphragm, it is ensured that the fire powder in output medicine and housing in igniter
Fully burning.
A kind of such as disclosed in the Chinese invention patent document of Publication No. CN106337759A combustion stability identification examination
The pulse rifle that similar structures are also reveal that with disturbance device is tested, it includes：Connection screw thread, six square nuts, ignition wire, main dress
Medicine, initiator, inner metal shell body, nonmetallic materials intermediate layer, intermediate layer of material, lagging casing body；Initiator includes input
And output end；Initiator and inner metal shell body are located in metal material intermediate layer, and main charge is filled in inner metal shell by filling
In vivo, main charge selects RDX RDX, and the pressure magnitude that explosive payload evokes as needed is determined, chooses 1g~3g.
The shortcoming of above-mentioned traditional pulse rifle is：There is twice propagation of explosion link, efficacy-enhancing ingredient combustion output medicine is originated using in igniter
High-temperature fuel gas is produced to be seated in the fire powder in housing medicine chamber so as to ignite to realize to engine impulse disturbance, propagation of explosion link
It is many, time-consuming；Special medicine chamber is set to be used for loading fire powder in housing, it is complicated.
The content of the invention
For above-mentioned technical problem, the present invention provides a kind of propagation of explosion link few, simple in construction pulse rifle.
The technical scheme is that：The pulse rifle provided, including priming device and housing unit；Priming device includes
Initiator body, pressure ring and drug blocking；The input of above-mentioned initiator body couples with driving source, the output end of initiator body
For boss, the centrally disposed stepped hole of boss；Above-mentioned pressure ring is fixedly mounted in the macropore cavity of above-mentioned stepped hole；Above-mentioned drug blocking
It is arranged on the macropore exit of the stepped hole and is sealingly mounted on pressure ring；Filling is begun in the cavity of the aperture of above-mentioned stepped hole
Filling output medicine in dispensing, the cavity of above-mentioned pressure ring；Above-mentioned housing unit includes housing and explosion diaphragm；One end of housing cavity
Union end for enlarged-diameter, the output end boss of above-mentioned union end and initiator body is detachably connected；Above-mentioned housing
The other end be the hollow cavity connected with the union end；Explosion diaphragm is sealingly disposed in the other end of housing.
After priming device is passed through specified trigger energy, the intrinsic igniter wire of initiator is generated heat rapidly, is originated so as to ignite
Medicine, the high-temperature high-pressure fuel gas for originating medicine generation ignite output medicine, and fully burning cuts through the output of explosion diaphragm to output medicine in the housing
Pulse.Ignition process only has one of propagation of explosion link, and from being energized to, output pulse time interval is short, and the working time is milli
Second level, and due to reducing propagation of explosion link, add functional reliability.
The need for meeting regulation excitation energy, the powder charge for being used to change output medicine using the pressure ring of different size is held
Chamber.Pressure ring internal diameter is that 5~φ of φ 7mm, external diameter are φ 8mm, are highly 3.6mm.Pressure ring also enhances the reliable compression of drug blocking,
Drug blocking is used for the sealing property for realizing priming device.
In order to ensure that the output medicine of different doses fully burns, it is ensured that the energy moment that the output medicine of different doses is produced releases
Put, the length for being used to adjust the hollow cavity of housing using the housing of different size.The hollow cavity length of shell one end is 40mm
~55mm, internal diameter is φ 4mm.
Output medicine is the ammonium nitrate of ring cyclonite three, also referred to as hexogen, RDX, has the advantages that energy height, density are big.
In order to obtain different excitation energies, the explosive payload scope of output medicine is 21mg~105mg.
In order to strengthen the sealing of priming device, drug blocking is closed up by crimping and sealed with pressure ring；In order to effective
Completely cut off external high temperature high-pressure gas, explosion diaphragm is closed up and housing seal by crimping.
The charging means of above-mentioned output medicine are that nature pine dress or certain pressure press-fit.When output medicine dose pine dress shape
, can be using the charging means press-fited when state volume is more than priming device output medicine medicine cavity volume.
In order that diaphragm can bear about 5~6MPa positive fracture pressure, while explosion diaphragm can be further ensured that
The smooth opening when pulse rifle works；Diaphragm is set to bear the pressure that the hot combustion gas of combustion chamber generation reversely applies from diaphragm,
It is further ensured that the safety of priming device in pulse rifle；Explosion diaphragm material uses copper film piece, aluminium film piece or stainless steel diaphragm simultaneously
And it is carved with a meter font indentation in explosion membrane surface.
Butt sealing can be ensured by improving sealing surface machining accuracy between priming device and housing unit, due to the present invention
Working time is Millisecond, even if revealing combustion gas from junction, leakage rate is also very limited.In order to further enhance pulse rifle
Sealing property, it is to avoid because gas leakage causes output energy reduction, gasket seal is provided between priming device and housing unit.This
Invention can be directly mounted on engine combustion chamber body portion inwall.
Advantages of the present invention：
1st, relative to the twice propagation of explosion link of traditional pulse rifle, i.e., using type of igniter pilot output medicine produce high-temperature fuel gas from
And ignite and be seated in the fire powder in housing medicine chamber to realize to engine impulse disturbance, the present invention only has one of propagation of explosion link,
I.e. by originating efficacy-enhancing ingredient combustion output medicine, the abundant burning in housing unit of output medicine cuts through explosion diaphragm and causes pulse to disturb
It is dynamic.Because pulse rifle propagation of explosion link is few, from being energized to, output pulse time interval is short, and the working time is Millisecond, increase
Functional reliability.
2nd, the powder charge of the powder charge cavity volume that the present invention is used to change output medicine using the pressure ring of different size, i.e. adjustment output medicine
Amount, the need for disclosure satisfy that regulation excitation energy.
3rd, the length that the present invention is used to adjust the hollow cavity of housing using the housing of different size, it is ensured that different doses
The energy abrupt release that output medicine fully burns with the output medicine generation of different doses.
4th, sealed is first with angle mould that crimping is oblique to internal pressure, then will be pressed oblique crimping with flat mouth mould
Flatten, complete crimping and close up.Drug blocking is closed up by crimping and sealed with pressure ring, strengthens the sealing of priming device；Rupture disk
Piece is closed up and housing seal by crimping, can effectively completely cut off external high temperature high-pressure gas.
5th, present invention output medicine dose can subtract small chemical cavity effective volume using the charging means press-fited.
6th, explosion diaphragm material is copper film piece, aluminium film piece or stainless steel diaphragm and is carved with a meter font in explosion membrane surface
Indentation, so that diaphragm can bear about 5~6MPa positive fracture pressure, while explosion diaphragm can be further ensured that in arteries and veins
Smooth opening when rushing rifle work；Diaphragm is born the pressure that the hot combustion gas of combustion chamber generation reversely applies from diaphragm, enter one
Step ensures the safety of priming device in pulse rifle.
7th, gasket seal is provided between priming device and housing unit, the sealing property of pulse rifle can be further enhanced,
Avoid because gas leakage causes output energy reduction.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
Each label is described as follows in figure：
1-priming device；11-initiator body；111-boss；12-pressure ring；13-drug blocking；
2-housing unit；21-housing；22-explosion diaphragm；
3-output medicine；4-originate medicine；5-gasket seal.
Embodiment
The present invention is further detailed explanation with embodiment below in conjunction with the accompanying drawings.
As shown in figure 1, pulse rifle is made up of priming device 1 and housing unit 2.Priming device 1 include initiator body 11,
Pressure ring 12 and drug blocking 13；The input of initiator body 11 couples with driving source, and the output end of initiator body 11 is boss
111, the centrally disposed stepped hole of boss 111；Above-mentioned pressure ring 12 is embedded in the macropore cavity of the stepped hole；In the cavity of pressure ring 12
Filling output medicine 3, output medicine 3 is the ammonium nitrate of ring cyclonite three, also referred to as hexogen, RDX, has the advantages that energy height, density are big,
The charging means of output medicine 3 are that nature pine dress or pressure press-fit；Above-mentioned drug blocking 13 is arranged on the big of the stepped hole
Simultaneously sealed is arranged on pressure ring 12 and the filling beginning in fluid sealant, the cavity of the aperture of stepped hole is applied at closing at hole exits
Dispensing 4.
Above-mentioned housing unit 2 includes housing 21 and explosion diaphragm 22；One end of the above-mentioned inner chamber of housing 21 is enlarged-diameter
Union end, the output end boss 111 of above-mentioned union end and initiator body 11 passes through thread connection；Above-mentioned housing 21 it is another
End is the hollow cavity connected with the union end；The explosion diaphragm 22 be arranged on the inner chamber other end of housing 21 and with housing 21
Sealed simultaneously applies fluid sealant at crimping closing in, and explosion diaphragm 22 is made of aluminum；It is carved with a meter font in the surface of explosion diaphragm 22
Indentation.
Gasket seal 5 is provided between the union end of the output end of initiator body 11 and the housing unit 2.Pulse rifle is set
The one end for putting explosion diaphragm is connected through a screw thread on engine combustion chamber body portion inwall.
The internal diameter of pressure ring 12 is that 5~φ of φ 7mm, external diameter are φ 8mm, is highly 3.6mm, the hollow cavity of the one end of housing 21
Length is that 40mm~55mm, hollow cavity internal diameter are φ 4mm.
The course of work of the present embodiment is as follows：Medicine is originated in energization driving source heating priming device, medicine burning production is originated
Raw high-temperature fuel gas ignites output medicine, and output medicine fully burns in housing unit and produces high-temperature high-pressure fuel gas, HTHP
Combustion gas enters engine chamber after explosion diaphragm is cut through, so as to cause pulse to disturb.
Inventor shows that the pulse rifle that the present invention is obtained can meet low thrust under different operating modes by lot of experiments research
The combustion chambers burn unstability of rail attitude control liquid-propellant rocket engine is assessed.
Table 1 to table 4 lists the pulse that pulse rifle is obtained under the hollow cavity length of various sizes of housing and pressure ring internal diameter
Rifle exports output pressure.
Table 1
Table 2
Table 3
Table 4
It is specifically that 280mL, specified chamber pressure are 0.8MPa to a kind of combustion chamber volume for the corresponding pulse rifle of table 4
1000N attitude control engines tested.
When the hollow cavity length of pulse gun housing body 21 uses 55mm；The internal diameter of pressure ring 12 uses φ 5mm, φ 5.5mm, φ
When 6mm, φ 6.5mm, φ 7mm (its corresponding output dose is respectively 21mg, 42mg, 63mg, 84mg, 105mg)；
Result of the test is as follows：
Experiment obtain engine cavity room impulse rifle output pressure be respectively 0.14MPa, 0.153MPa, 0.163MPa,
0.282MPa, 0.44MPa, specified chamber pressure accounting is respectively 17.5%, 19.1%, 20.4%, 35.3%, 55%, be disclosure satisfy that
It is actually needed.
Claims (10)
1. a kind of pulse rifle, it is characterised in that：Including priming device (1) and housing unit (2)；
The priming device (1) includes initiator body (11), pressure ring (12) and drug blocking (13)；The initiator body (11)
Input couple with driving source, the output end of initiator body (11) is boss (111), and the boss (111) is centrally disposed
Stepped hole；The pressure ring (12) is fixedly mounted in the macropore cavity of the stepped hole；The drug blocking (13) is arranged on described
The macropore exit of stepped hole is simultaneously sealingly mounted on pressure ring (12)；Filling originates medicine in the cavity of the aperture of the stepped hole
(4), filling output medicine (3) in the cavity of the pressure ring (12)；
The housing unit (2) includes housing (21) and explosion diaphragm (22)；One end of the housing (21) is enlarged-diameter
Union end, the union end and the output end boss (111) of the initiator body (11) are detachably connected；The housing
(21) the other end is the hollow cavity connected with the union end；The explosion diaphragm (22) is sealingly disposed in housing (21)
The other end.
2. a kind of pulse rifle according to claim 1, it is characterised in that：The internal diameter of the pressure ring (12) is 5~φ of φ
7mm, external diameter are φ 8mm, are highly 3.6mm.
3. a kind of pulse rifle according to claim 2, it is characterised in that：The hollow cavity length of described housing (21) one end
It is φ 4mm for 40mm~55mm, internal diameter.
4. a kind of pulse rifle according to claim 3, it is characterised in that：The output medicine (3) is the nitre of ring cyclonite three
Ammonium.
5. a kind of pulse rifle according to claim 4, it is characterised in that：It is described output medicine (3) explosive payload for 21mg~
105mg。
6. a kind of pulse rifle according to claim 5, it is characterised in that：The drug blocking (13) is closed up with pressing by crimping
Ring (12) is sealed, and explosion diaphragm (22) is closed up by crimping and sealed with housing (21).
7. a kind of pulse rifle according to any one of claim 1 to 6, it is characterised in that：The powder charge side of the output medicine (3)
Formula is that nature pine dress or pressure press-fit.
8. a kind of pulse rifle according to claim 7, it is characterised in that：The explosion diaphragm (22) is by copper, aluminium or stainless
Steel is made.
9. a kind of pulse rifle according to claim 8, it is characterised in that：It is carved with a meter word in the surface of the explosion diaphragm (22)
Type indentation.
10. a kind of pulse rifle according to claim 9, it is characterised in that：The output end of the initiator body (11) with
Gasket seal (5) is provided between the union end of the housing unit (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710261984.2A CN107061050B (en) | 2017-04-20 | 2017-04-20 | A kind of pulse rifle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710261984.2A CN107061050B (en) | 2017-04-20 | 2017-04-20 | A kind of pulse rifle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107061050A true CN107061050A (en) | 2017-08-18 |
| CN107061050B CN107061050B (en) | 2018-06-26 |
Family
ID=59600450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710261984.2A Active CN107061050B (en) | 2017-04-20 | 2017-04-20 | A kind of pulse rifle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107061050B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110821928A (en) * | 2019-10-18 | 2020-02-21 | 四川航天川南火工技术有限公司 | Light and thin piece assembling system for igniter powder surface |
| CN112282971A (en) * | 2020-10-29 | 2021-01-29 | 西安航天动力研究所 | Solid gas starter for gas self-pressurization |
| CN112855384A (en) * | 2019-11-27 | 2021-05-28 | 西安航天动力研究所 | Light, high-power and rich particle gunpowder ignition device |
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|---|---|---|---|---|
| RU2161770C1 (en) * | 1999-10-26 | 2001-01-10 | Государственное унитарное предприятие "Муромский приборостроительный завод" | Detonating device without primary explosive |
| KR20040049157A (en) * | 2002-12-05 | 2004-06-11 | 한국항공우주연구원 | Construction of pulse gun and reusable cavity for stability rating test of rocket engine |
| CN103075270A (en) * | 2013-01-15 | 2013-05-01 | 西北工业大学 | High-pressure-intensity external pulse excitation device for T-shaped burner |
| CN104481735A (en) * | 2014-09-19 | 2015-04-01 | 中国航天科工集团第六研究院二一○所 | Pulse trigger |
| CN106337759A (en) * | 2016-09-29 | 2017-01-18 | 北京航天动力研究所 | Disturbance device used for combustion stability qualification tests |
-
2017
- 2017-04-20 CN CN201710261984.2A patent/CN107061050B/en active Active
Patent Citations (5)
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| RU2161770C1 (en) * | 1999-10-26 | 2001-01-10 | Государственное унитарное предприятие "Муромский приборостроительный завод" | Detonating device without primary explosive |
| KR20040049157A (en) * | 2002-12-05 | 2004-06-11 | 한국항공우주연구원 | Construction of pulse gun and reusable cavity for stability rating test of rocket engine |
| CN103075270A (en) * | 2013-01-15 | 2013-05-01 | 西北工业大学 | High-pressure-intensity external pulse excitation device for T-shaped burner |
| CN104481735A (en) * | 2014-09-19 | 2015-04-01 | 中国航天科工集团第六研究院二一○所 | Pulse trigger |
| CN106337759A (en) * | 2016-09-29 | 2017-01-18 | 北京航天动力研究所 | Disturbance device used for combustion stability qualification tests |
Non-Patent Citations (1)
| Title |
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| 张中光，钟徐: ""神舟"号载人飞船轨控发动机的研制", 《上海航天》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110821928A (en) * | 2019-10-18 | 2020-02-21 | 四川航天川南火工技术有限公司 | Light and thin piece assembling system for igniter powder surface |
| CN110821928B (en) * | 2019-10-18 | 2022-04-19 | 四川航天川南火工技术有限公司 | Light and thin piece assembling system for igniter powder surface |
| CN112855384A (en) * | 2019-11-27 | 2021-05-28 | 西安航天动力研究所 | Light, high-power and rich particle gunpowder ignition device |
| CN112282971A (en) * | 2020-10-29 | 2021-01-29 | 西安航天动力研究所 | Solid gas starter for gas self-pressurization |
| CN112282971B (en) * | 2020-10-29 | 2021-08-10 | 西安航天动力研究所 | Solid gas starter for gas self-pressurization |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107061050B (en) | 2018-06-26 |
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