CN108645296A - A kind of jet flow forming device of strong Magnetic driving - Google Patents
A kind of jet flow forming device of strong Magnetic driving Download PDFInfo
- Publication number
- CN108645296A CN108645296A CN201810574687.8A CN201810574687A CN108645296A CN 108645296 A CN108645296 A CN 108645296A CN 201810574687 A CN201810574687 A CN 201810574687A CN 108645296 A CN108645296 A CN 108645296A
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- flow forming
- strong magnetic
- jet flow
- cavity liner
- forming device
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
- F42D1/08—Tamping methods; Methods for loading boreholes with explosives; Apparatus therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D5/00—Safety arrangements
- F42D5/04—Rendering explosive charges harmless, e.g. destroying ammunition; Rendering detonation of explosive charges harmless
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- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
The invention discloses a kind of jet flow forming devices of strong Magnetic driving, including Types of Medicine closure assembly, bearing, output end.The heavy current of megampere grade is generated using high energy-storage capacitor group as the original upload energy, easily controllable strong magnetic load mode is innovatively used to make current flow through metal liner surface and generate toroidal magnetic field, metal liner is by towards the Ampere force axially converged, and then crush to cavity liner, form metal jet.The electric current for flowing through cavity liner is bigger, and the collapse velocity of cavity liner is bigger, and velocity of jet head is higher, and Penetration is stronger.The present invention can not only enrich new concept, the jet flow forming means of new principle, but also breach the single-mode of the explosive driving molding jet stream used in decades, the method for extending driving jet flow forming.Present invention can apply to form high-speed jet, promoted in holes power.
Description
Technical field
The invention belongs to fluidic device, especially a kind of jet flow forming device of strong Magnetic driving.
Background technology
Since the Penetration of Shaped Charge Jet body that beehive-shaped charge explosion generates has very strong penetration penetration capacity, receive
The most attention of the countries in the world military.It after World War II, is continued to bring out as novel protective is armoring, traditional is gathered
Energy powder charge proposes great challenge, how to improve the penetration penetration capacity of Shaped charge warhead, becomes domestic and foreign scholars' research
One of hot spot.With the development of fortification protection and armor technology, weapon systems and the beehive-shaped charge such as anti-armoring and hard-to-hit target
Technology also develops constantly.Beehive-shaped charge can be divided into three kinds of typical powder charges, cone-shaped hood powder charge, sub- half ball cover powder charge and K dresses
Medicine.The velocity of jet head that cone-shaped hood powder charge is formed is high（About 7 ~ 10km/s）, Penetration is larger, but stability is poor,
Open pore size on target plate is smaller.The molding penetration weight of sub- half ball cover powder charge is big, speed is relatively low（About 7 ~ 10km/s）, open
Hole aperture is larger.K powder charges not only ensure aperture the advantages of having gathered both the above powder charge in terms of penetration, but it is unlikely wear it is deep too small.
Research about shaped charge material also has very much, other than conventionally used red copper material, molybdenum, tantalum, tungsten and
Depleted Uranium Alloys are also selected into wherein.TOM-2B, TOM-NG guided missile in the U.S. are to use tantalum and Depleted Uranium Alloys as cavity liner material
Material.Research about Shaped Charge Initiation Manners starts from the nineties, and detonation mode mainly has single-point, multiple spot, face, ring and combination
Detonation, point initiation have direct initiation, converse detonating and side detonation etc..
China has systematically analyzed broken first technology since last century the seventies, to detonation mode, partition board,
The links such as powder column, shaped charge material and structure are all studied in detail, but compared with military advanced country, there are still
The problems such as Penetration Depth is low, opening diameter is small and aftereffect is insufficient.Traditional beehive-shaped charge molding jet stream is because of its own structure spy
Point causes explosive energy utilization rate low, and in the case where not changing explosive payload, the Penetration of jet stream is difficult to further increase.With
The progress of science and technology, electromagnetism loading technique is increasingly used in weapon system.Countries in the world also make full use of electromagnetism to add
The advantage of load technology has developed the first-class new-type weapon and equipment of a variety of electromagnetic pulse bombs, magnetic artillery, electromagnetic installing.
Invention content
The purpose of the present invention is to provide a kind of jet flow forming devices of strong Magnetic driving, solve traditional beehive-shaped charge and are formed
Jet energy it is insufficient, Penetration Ability is inadequate, and effluxvelocity is not easy to control, the low problem of capacity usage ratio.
Realize that the technical solution of the object of the invention is：A kind of jet flow forming device of strong Magnetic driving, including cavity liner
Device, bearing and output end；Types of Medicine closure assembly includes cylinder, gradually expanded form cavity liner, annulus and circular cone；Cylindrical member at one end center
Equipped with blind screw hole, for being connect with outer conductor, other end center is fixed with circular cone, the small end face of gradually expanded form cavity liner diameter
It just entangles circular cone and is connected with the end face of cylinder, annulus is connected with the big one end of gradually expanded form cavity liner diameter, and annulus is used for
It is interference fitted with output end；Bearing is arranged in the bottom of cylinder.
The bearing shape is the cuboid with arc gap, and arc gap is used for and cylinder engagement, and material uses
Insulating materials.
The output end is disk, and one end center is set there are one circular first groove, and the first groove center is provided with one
A circular hole, the first recess edge are seamlessly transitted to bore edges by inclined-plane, and the first groove is equipped with a circle the in inclined-plane junction
Two grooves, for being interference fitted with annulus, several symmetrical threaded holes of output end circumferential arrangement make electricity for connecting outer conductor
Stream output.
Compared with prior art, the present invention its remarkable advantage is：
（1）Conventional explosives metal-loaded cavity liner is the metal liner that directly acted on and crushed by detonation product pressure, in turn
Form metal jet；And electromagnetic drive jet flow forming process is Lorentz force is directly applied to metal liner surface, and to medicine
Type cover crushes, and forms jet stream.When explosive loads cavity liner, there are a projectiles with cavity liner normal direction for collapse velocity
Angle, this vibrating deflection exist always, can not avoid.And when electromagnetism load, collapse velocity is not deposited perpendicular to cavity liner normal direction
In vibrating deflection.Velocity of jet head and tail speed can be increased substantially in this way.
（2）Speed difference is smaller end to end for the jet stream that strong magnetic loading technique is formed, and still has stronger penetration energy under high burst hight
Power.And explosive loads the jet stream to be formed that speed difference is very big end to end, fracture is easy to happen in motion process, and very quick to the height of burst
Sense.
（3）Strong magnetic loading technique is easily controllable, and collapse velocity can be directly controlled by size of current, further accurate control
Jet stream processed speed, draw ratio etc. end to end.
（4）Since Cone Angle of Liner and diameter directly determine that the length of busbar, the busbar of traditional cavity liner can not possibly be done
It is very long, and strong magnetic loading technique in theory can be by the cone angle design of cavity liner to very small, and such cavity liner busbar is long
Degree will become very long, once bus length increases, in the case where energy is enough, the length of jet stream will greatly increase,
Penetration Ability can also be doubled and redoubled.
（5）It is easily worked, electromagnetism loading technique is not high to the processing technology of cavity liner and required precision, and conventional explosives add
It is very strict to the processing technology requirement of cavity liner to carry the jet stream formed.
Description of the drawings
Fig. 1 is the overall structure diagram of the present invention.Wherein（a）For front view,（b）For side view.
Fig. 2 is the cavity liner apparatus structure schematic diagram of the present invention.
Fig. 3 be strong Magnetic driving metal jet forming principle and procedure chart, wherein（a）For front view,（b）For side view.
Specific implementation mode
Present invention is further described in detail below in conjunction with the accompanying drawings.
The present invention is that a kind of jet flow forming device of strong Magnetic driving utilizes height using easily controllable magnetic coupling method
Energy pulse capacitor group generates the heavy current of megampere grade, and heavy current flows through the metal liner surface of the present invention and generates circumferential direction
Magnetic field, metal liner are crushed by towards the Ampere force axially converged, and then to cavity liner, form metal jet.It is theoretical
On say, the electric current for flowing through cavity liner is bigger, and the collapse velocity of cavity liner is bigger, and velocity of jet head is higher, and Penetration is got over
By force.And the very little that the cone angle of cavity liner can design not only can increase the bus length of cavity liner, can also increase
The effective length of jet stream, further increases Penetration.For the electromagnetism load mode, there is presently no as associated class in China
Report.Its strong Magnetic driving metal jet forming principle and the visible Fig. 3 of process.
In conjunction with figure and Fig. 2, a kind of jet flow forming device of strong Magnetic driving of the present invention, including Types of Medicine closure assembly 1, branch
Seat 2 and output end 3.Types of Medicine closure assembly 1 includes cylinder 1-1, gradually expanded form cavity liner 1-2, annulus 1-3 and circular cone 1-4.Cylinder
The one end 1-1 center is equipped with blind screw hole, for being threadedly coupled with outer conductor, facilitates electric current to input, other end center is solid
Surely there is circular cone 1-4, can be along pinnacle outer wall continuously to center convergence when for ensureing that Types of Medicine closure assembly 1 crushes, and pinnacle
Can ensure Types of Medicine closure assembly 1 when to center convergence electric current always continually by Types of Medicine closure assembly 1.Gradually expanded form cavity liner 1-
The small end face of 2 diameters entangles circular cone 1-4 and is connected with the end face of cylinder 1-1, in the small end face of gradually expanded form cavity liner 1-2 diameters
Diameter is identical as the base diameter of circular cone 1-4, and the small end face diameter of gradually expanded form cavity liner 1-2 diameters is less than the diameter of cylinder 1-1.
Annulus 1-3 is connected with the big one end of gradually expanded form cavity liner 1-2 diameters, and the second groove interference that annulus 1-3 is used for output end 3 is matched
It closes.Types of Medicine closure assembly 1 is using electric conductivity and ductility good metal material, such as red copper, aluminium, gold, silver etc..The mother of circular cone 1-4
The angle of line and the inner surface busbar of gradually expanded form cavity liner 1-2 is less than or equal to 90 °.Bearing 2 is arranged in the bottom of cylinder 1-1,
Its effect is the balance that Types of Medicine closure assembly 1 is isolated with ground, and ensures whole device.The material of bearing 2 is nylon, plastics
Or the insulating materials such as epoxy resin, shape are the rectangular shape with arc gap, arc gap is used for and cylinder 1-1
Cooperation.Output end 3 is disk, and one end center is set there are one circular first groove, and the first groove center is opened there are one circular hole,
First recess edge is seamlessly transitted to bore edges by inclined-plane, and the first groove is equipped with second groove of circle in inclined-plane junction,
For being interference fitted with annulus 1-3.The inclined-plane of above-mentioned first groove and the angle of the inner surface busbar of gradually expanded form cavity liner 1-2 are small
In equal to 90 °.Output end 3 circumferential arrangement, four symmetrical threaded holes, 90 ° of each threaded hole interval for connecting outer conductor, makes electricity
Stream output.External impressed current is inputted by the cylinder 1-1 of Types of Medicine closure assembly 1, after flowing through cavity liner 1-2, heavy current and heavy current
The high-intensity magnetic field of generation couples, and generates Ampere force and crushes cavity liner 1-2, cavity liner 1-2 starts to center convergence, during convergence
Electric current constantly flows into output end 3 by cavity liner 1-2, is flowed out using the conducting wire being connect with output end 3.
The present invention can be used in civil blast, and soil borings-are used to dig pit pile anchoring in pedostratigraphy（Bar）In construction, add
The progress of bridge line is buried soon, and open hearth taps a blast furnace（Steel）Mouth perforation, Discard old bomb destruction and oil well perforation etc..
Claims (8)
1. a kind of jet flow forming device of strong Magnetic driving, it is characterised in that：Including Types of Medicine closure assembly（1）, bearing（2）And output end
（3）；Types of Medicine closure assembly（1）Including cylinder（1-1）, gradually expanded form cavity liner（1-2）, annulus（1-3）And circular cone（1-4）；Cylinder
Body（1-1）One end center is equipped with blind screw hole, and for being connect with outer conductor, other end center is fixed with circular cone（1-4）, flaring
Shape cavity liner（1-2）Just entangle circular cone in the small end face of diameter（1-4）And and cylinder（1-1）End face be connected, annulus（1-3）
With gradually expanded form cavity liner（1-2）The big one end of diameter is connected, annulus（1-3）For with output end（3）Interference fit；Bearing（2）
It is arranged in cylinder（1-1）Bottom.
2. the jet flow forming device of strong Magnetic driving according to claim 1, it is characterised in that：The bearing（2）Shape is
Cuboid with arc gap, arc gap is used for and cylinder（1-1）Cooperation, material use insulating materials.
3. the jet flow forming device of strong Magnetic driving according to claim 2, it is characterised in that：Above-mentioned insulating materials selects Buddhist nun
Dragon, plastics or epoxy resin.
4. the jet flow forming device of strong Magnetic driving according to claim 1, it is characterised in that：The output end（3）For circle
Disk, one end center are set there are one circular first groove, and the first groove center is opened there are one circular hole, and the first recess edge is to circle
Bore edges are seamlessly transitted by inclined-plane, and the first groove is equipped with second groove of circle in inclined-plane junction, is used for and annulus（1-3）It crosses
It is full of cooperation, output end（3）Several symmetrical threaded holes of circumferential arrangement make electric current export for connecting outer conductor.
5. the jet flow forming device of strong Magnetic driving according to claim 4, it is characterised in that：The inclined-plane of above-mentioned first groove
With gradually expanded form cavity liner（1-2）Inner surface busbar angle be less than or equal to 90 °.
6. the jet flow forming device of strong Magnetic driving according to claim 1, it is characterised in that：The cavity liner（1）Using
Electric conductivity and the good metal material of ductility.
7. the jet flow forming device of strong Magnetic driving according to claim 6, it is characterised in that：The electric conductivity and ductility
Good metal material selects red copper, aluminium, gold or silver.
8. the jet flow forming device of strong Magnetic driving according to claim 1, it is characterised in that：The gradually expanded form cavity liner
（1-2）The small end face diameter of diameter is less than cylinder（1-1）Diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810574687.8A CN108645296B (en) | 2018-06-06 | 2018-06-06 | A kind of jet flow forming device of strong Magnetic driving |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810574687.8A CN108645296B (en) | 2018-06-06 | 2018-06-06 | A kind of jet flow forming device of strong Magnetic driving |
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| Publication Number | Publication Date |
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| CN108645296A true CN108645296A (en) | 2018-10-12 |
| CN108645296B CN108645296B (en) | 2019-11-15 |
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| CN201810574687.8A Active CN108645296B (en) | 2018-06-06 | 2018-06-06 | A kind of jet flow forming device of strong Magnetic driving |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110440653A (en) * | 2019-08-05 | 2019-11-12 | 中国人民解放军陆军工程大学 | Combined underground unexplosive explosive destroying device |
| CN111397446A (en) * | 2020-03-18 | 2020-07-10 | 南京理工大学 | Electromagnetic loading system for forming metal jet |
| CN112129176A (en) * | 2020-09-04 | 2020-12-25 | 南京理工大学 | Electromagnetism-enhanced armor-breaking bomb device |
| CN113006747A (en) * | 2021-02-24 | 2021-06-22 | 中国矿业大学 | Novel device and method for forming energy-gathered jet flow by electromagnetic drive copper-based alloy cover |
| CN114838628A (en) * | 2022-05-05 | 2022-08-02 | 中国工程物理研究院流体物理研究所 | Energy gathering device for forming shaped projectile |
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| CN103913382A (en) * | 2014-04-21 | 2014-07-09 | 西北工业大学 | Experimental device of split hopkinson pressure bar based on electromagnetic force load |
| CN106053963A (en) * | 2016-05-23 | 2016-10-26 | 北京理工大学 | Shaped charge jet electromagnetic radiation characteristic test target bench |
| CN107192615A (en) * | 2017-07-12 | 2017-09-22 | 河北工业大学 | Metal electromagnetism loading system based on Lorentz force |
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| GB2288005B (en) * | 1994-03-29 | 1998-07-29 | Schlumberger Ltd | A perforating gun having a plurality of charges |
| CN103913382A (en) * | 2014-04-21 | 2014-07-09 | 西北工业大学 | Experimental device of split hopkinson pressure bar based on electromagnetic force load |
| CN106053963A (en) * | 2016-05-23 | 2016-10-26 | 北京理工大学 | Shaped charge jet electromagnetic radiation characteristic test target bench |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110440653A (en) * | 2019-08-05 | 2019-11-12 | 中国人民解放军陆军工程大学 | Combined underground unexplosive explosive destroying device |
| CN110440653B (en) * | 2019-08-05 | 2024-02-23 | 中国人民解放军陆军工程大学 | Combined underground non-explosive destroying device |
| CN111397446A (en) * | 2020-03-18 | 2020-07-10 | 南京理工大学 | Electromagnetic loading system for forming metal jet |
| WO2021184687A1 (en) * | 2020-03-18 | 2021-09-23 | 南京理工大学 | Electromagnetic loading system for forming metal jet |
| GB2606071A (en) * | 2020-03-18 | 2022-10-26 | Univ Nanjing Sci & Tech | Electromagnetic loading system for forming metal jet |
| GB2606071B (en) * | 2020-03-18 | 2023-12-20 | Univ Nanjing Sci & Tech | Electromagnetic loading system for forming metal jet |
| CN112129176A (en) * | 2020-09-04 | 2020-12-25 | 南京理工大学 | Electromagnetism-enhanced armor-breaking bomb device |
| CN112129176B (en) * | 2020-09-04 | 2022-03-18 | 南京理工大学 | Electromagnetism-enhanced armor-breaking bomb device |
| CN113006747A (en) * | 2021-02-24 | 2021-06-22 | 中国矿业大学 | Novel device and method for forming energy-gathered jet flow by electromagnetic drive copper-based alloy cover |
| CN114838628A (en) * | 2022-05-05 | 2022-08-02 | 中国工程物理研究院流体物理研究所 | Energy gathering device for forming shaped projectile |
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| CN108645296B (en) | 2019-11-15 |
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