CN104534945B - A kind of synchronous multi-point spark center core igniter - Google Patents
A kind of synchronous multi-point spark center core igniter Download PDFInfo
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- CN104534945B CN104534945B CN201410772328.5A CN201410772328A CN104534945B CN 104534945 B CN104534945 B CN 104534945B CN 201410772328 A CN201410772328 A CN 201410772328A CN 104534945 B CN104534945 B CN 104534945B
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- center core
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- detonator
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Abstract
The invention discloses a kind of synchronous multi-point spark center core igniter, is the problem in order to solve prior art bottom priming defect.The present invention is by center core igniter, igniting primer adapter, some detonators, some igniter pads, form to naphthalene pencil, the fire in a stove before fuel is added and cartridge case.Case primer output is connected with detonator one end, and the detonator other end is connected with igniter pad, and igniter pad is uniformly distributed at igniting inner axial tube.Be built in center core igniter to naphthalene pencil as axial starting mix.The present invention achieves synchronous multi-point spark in center core igniter, the starting mix almost simultaneously ignited in igniting primer, makes each fire jetting hole of igniting primer reach the effect of flame simultaneously, improves the igniting simultaneity of gun propellant charge, thus improve igniting reappearance, obtain comparatively stable ballistic performance.In addition, compared with the center core igniter passing fire with bottom, this rapidly and the igniting of dispersion effectively can suppress the generation of breech pressure ripple, improve the security of artillery shooting.
Description
Technical field
The invention belongs to explosive wastewater technical field, be applicable to gun propellant powder charge ignition system.
Background technology
The performance of ignition system in gun propellant charge on weapons with pipes has vital impact.To the requirement of ignition system be: first will have and light the necessary energy of coyote hole powder charge; Next be to the igniting of powder charge should be even and dispersion igniting; 3rd is that this igniting should possess reappearance preferably.
At present, the ignition system that Gun Charge obtains practical application has two kinds: priming system igniting and center core igniter are lighted a fire.Priming system igniting is due in bottom priming, and can form an initial pressure gradient bottom coyote hole, the combustion gas of ignition charge, scorching hot solids and penetrated into Propellant Bed by the propellant combustion gas lighted, Propellant Bed is successively lighted.In flame propagation process, combustion gas generating rate continues to increase, and thus barometric gradient constantly increases, and defines pressure wave, causes weapon-shooting precise decreasing, and muzzle velocity is beated increase, and the accidents such as bore premature, thorax is swollen even occur.Center core igniter igniting is compared with bottom priming structure, and its sparking mode is by the line a bit developing into bidimensional of one dimension.Center core igniter pipe wall has the fire jetting hole of some, is equivalent to the multiple ignition point of axial distribution, due to increasing and orthoscopic distribution and substantially improve the drawback of bottom priming of relative ignition point, makes igniting more even.But center core igniter is Shortcomings also: (1) due to when center core igniter works first from bottom priming, flame forward direction ignites the ignition charge of igniting primer front end gradually afterwards, holes order is also from firing tip to the other end, therefore coyote hole base charge is first lighted, with priming system igniting, dangerous pressure ripple can be produced in thorax, be unfavorable for the security that cannon weapon uses.(2) flame propagation velocity of general point powder composition is rapid not, according to the literature, from the fire in a stove before fuel is added, flame needs 3-4ms to lighting basic point gunpowder comprehensively, cause igniting primer each fire jetting hole holes Time Inconsistency, namely there is certain holes time difference, each hole can not reach the effect of flame simultaneously.Therefore, conventional center igniting primer igniting uniformity is poor.
Summary of the invention
The technical problem to be solved in the present invention is, for the deficiencies in the prior art, provides a kind of synchronous multi-point spark center core igniter.This ignition system achieves at center core igniter inter-sync multi-point spark, improves base point and passes the defect that fire easily produces pressure wave.The each fire jetting hole of igniting primer reaches the effect of flame simultaneously, improves the igniting simultaneity of gun propellant charge, thus improves igniting reappearance, obtain comparatively stable ballistic performance.
For solving the problems of the technologies described above, synchronous multi-point spark center core igniter provided by the invention comprise center core igniter body, igniting primer adapter, some detonators, some igniter pads, to naphthalene pencil, the fire in a stove before fuel is added and cartridge case.Described center core igniter body is the steel igniting primer of bottom for female thread structure, the same with standard igniting primer, has equidistant cross arrangement small sircle hole at tube wall certain altitude.In pipe, filling runs quickly naphthalene pencil as starting mix.The cavity cylinder that described igniting primer adapter is steel, there is internal and external screw thread structure one end, external diameter comparatively small end and center core igniter bottom thread is connected.The larger one end of external diameter and cartridge case whorl of base are connected.Igniting primer adapter inside is cylindrical cavity, and open at one end, uncovered one end utilizes metal disk shutoff.Adapter shutoff one end and metal disk surface uniform open several small sircle holes, and small sircle hole diameter is suitable with detonator external diameter, and quantity is consistent with detonator.The Main Function of igniting primer adapter is connected center core igniter and cartridge case, and another effect utilizes adapter to keep out outside center core igniter by the energy that the fire in a stove before fuel is added exports, and is unlikely to the fire in a stove before fuel is added from starting mix in the ignitron of bottom.The effect of described some detonators is the energy excitation detonators utilizing the fire in a stove before fuel is added, and detonation wave imports center core igniter body predetermined position fast along detonator, the igniter pad of Detonation Wave detonator termination, and starting mix multiple spot in pipe is lighted a fire simultaneously.Described some detonators one are rectified fire in a stove before fuel is added cover plate, are positioned over bottom cartridge case and stay in room.The described some detonator other ends are through the small sircle hole of adapter both ends of the surface, one_to_one corresponding, the some detonator terminations through adapter enter in center core igniter, and make each detonator length appropriate, detonator termination can axially be uniformly distributed in center core igniter.Its quantity of described igniter pad is identical with the quantity of described detonator, and igniter pad is bonded on each termination of described detonator correspondingly.The described fire in a stove before fuel is added utilizes its helicitic texture to be connected in the cap chamber of described cartridge case.
According to the present invention, the mixture wrapping that is black by 2# granule and nitrocotton of described igniter pad forms.
Beneficial effect of the present invention is embodied in the following aspects:
(1) in the present invention, detonator is used to carry out synchronous multi-point spark to starting mix in center core igniter, because detonator has higher velocity of explosion, the starting mix almost simultaneously ignited in igniting primer, make each fire jetting hole of igniting primer reach the effect of flame simultaneously, improve the igniting simultaneity of gun propellant charge.Compared with the center core igniter passing fire with bottom, this rapidly and the igniting of dispersion effectively can suppress the generation of breech pressure ripple, improve the security of artillery shooting.
(2) the present invention achieves synchronous multi-point spark in center core igniter, shorten the time that starting mix in igniting primer burns comprehensively, and make each fire jetting hole of igniting primer reach the effect of flame simultaneously, compare the center core igniter that tradition bottom passes fire, improve the speed of ignition of igniting primer, be conducive to improving igniting reappearance, thus obtain comparatively stable ballistic performance.
Accompanying drawing explanation
Fig. 1 is structure of the present invention composition schematic diagram.
Fig. 2 is the structural representation of the adapter of igniting primer shown in Fig. 1.
Detailed description of the invention
Below in conjunction with accompanying drawing and preferred embodiment, the present invention is described in further detail.
As shown in Figure 1, the synchronous multi-point spark center core igniter that first preferred embodiment of the invention provides comprise center core igniter body 1, igniting primer adapter 2, detonator 3, igniter pad 4, to naphthalene pencil 5, the fire in a stove before fuel is added 6 and cartridge case 7.Center core igniter body 1 is steel igniting primer, long 360mm, internal diameter 18mm, external diameter 24mm.Body tube wall has equidistant cross arrangement small sircle hole.First hole height 160mm, aperture 3mm, pitch-row 40mm, 5 rounds amount to 20.Center core igniter body 1 top and the tube wall circular hole cell of thick 0.3mm seal.Need to be processed as female thread structure bottom center core igniter body 1, be connected with igniting primer adapter 2 external thread structure one end fits.Before center core igniter body 1 is connected with igniting primer adapter 2, first will be built in center core igniter body 1 to naphthalene pencil 5.To naphthalene pencil 5 ensure under the condition that do not bend as far as possible longer, to ensure that center core igniter body 1 manages interior uniform throughout powder charge.This preferred embodiment center core igniter body 1 manages interior actual powder charge 20 grams.Igniting primer adapter 2 is made up of adapter body 2-1 and 1 metal disk 2-2.Igniting primer adapter body 2-1 is steel and open at one end, two ends are all processed with externally threaded cavity cylinder.The long 32mm of igniting primer adapter body 2-1, one end external diameter 18mm, one end external diameter 22mm, internal diameter 20mm.The less one end of external diameter, except being processed with external thread structure, is also processed with female thread structure, is connected with center core igniter body 1 bottom thread.The less one end of external diameter utilizes side to have the metal disk 2-2 shutoff of helicitic texture.The thick 5mm of metal disk 2-2, external diameter 20mm, side is external thread structure, is connected with igniting primer adapter 2 two ends screw-internal thread fit.Metal disk 2-2 surface uniform opens 3 small sircle holes, small sircle hole diameter 3mm.The larger threaded one end structure of igniting primer adapter 2 external diameter is utilized to be connected with threaded engagement on cartridge case 7 base.Cartridge case 7 is 100mm cannon standard cylinder.The fire in a stove before fuel is added 6 is the dual-purpose fire in a stove before fuel is added for DJD-3 shocks by electricity, and is connected with threaded engagement under cartridge case 7 base.Detonator 3 selects the detonator (3) of diameter 3mm, and detonator 3 one is rectified the fire in a stove before fuel is added 6 cover plate, is positioned over bottom cartridge case 7 and stays in room.Detonator 3 other end is through the small sircle hole of adapter two end faces, one_to_one corresponding, enter in center core igniter body 1 manages through 3 detonator terminations of adapter, make each detonator moderate length, 3 terminations be able to axially be uniformly distributed in center core igniter body 1 manages.Igniter pad 4 utilizes barium sulfate paper mixture wrapping that is black for 60%2# granule and 40% nitrocotton to be formed.This preferred embodiment igniter pad weight used is 1.5 grams.Igniter pad 4 quantity is identical with the quantity of described detonator, is all 3, and igniter pad is bonded on each termination of described detonator correspondingly.Described threaded engagement junction all uses thread locking adhesive to seal, to reach the effect of excellent sealing powder gases.
Shown by high-speed camera test result, the fire transmission rate of detonator 3 is at about 2000m/s.After detonator 3 is excited by the fire in a stove before fuel is added 6, center core igniter body 1 is managed interior three igniter pads 4 and is almost lighted a fire simultaneously, and the theoretical igniting time difference is at 1 μ about s.
Claims (2)
1. a synchronous multi-point spark center core igniter, it is characterized in that comprising center core igniter body [1], igniting primer adapter [2], some detonators [3], several igniter pads [4], to naphthalene pencil [5], the fire in a stove before fuel is added [6] and cartridge case [7]
Described center core igniter body [1] is the steel igniting primer of bottom for female thread structure, and tube wall has equidistant cross arrangement small sircle hole, and in pipe, filling runs quickly naphthalene pencil [5] as starting mix;
Described igniting primer adapter [2] is steel cavity cylinder, open at one end, one end shutoff, and opening end and center core igniter bottom thread are connected, and shutoff end and cartridge case [7] whorl of base are connected; Opening end utilizes metal disk shutoff, and shutoff end and metal disk surface uniform have several small sircle holes, and small sircle hole diameter is suitable with detonator [3] external diameter, and quantity is consistent with detonator [3];
Described detonator [3] is rectified the fire in a stove before fuel is added [6] cover plate, being positioned over cartridge case [7] bottom stays in room, the other end enters center core igniter body [1] through the small sircle hole of igniting primer adapter [2] both ends of the surface, and detonator [3] termination can axially be uniformly distributed in center core igniter body [1];
Described igniter pad [4] is bonded on each termination of described detonator [3], and quantity is identical with the quantity of detonator [3];
The described fire in a stove before fuel is added [6] utilizes its helicitic texture to be connected in the cap chamber of described cartridge case [7].
2. synchronous multi-point spark center core igniter according to claim 1, is characterized in that: described igniter pad [4] mixture wrapping that is black by 2# granule and nitrocotton forms.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410772328.5A CN104534945B (en) | 2014-12-13 | 2014-12-13 | A kind of synchronous multi-point spark center core igniter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410772328.5A CN104534945B (en) | 2014-12-13 | 2014-12-13 | A kind of synchronous multi-point spark center core igniter |
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| Publication Number | Publication Date |
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| CN104534945A CN104534945A (en) | 2015-04-22 |
| CN104534945B true CN104534945B (en) | 2016-01-13 |
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| CN201410772328.5A Expired - Fee Related CN104534945B (en) | 2014-12-13 | 2014-12-13 | A kind of synchronous multi-point spark center core igniter |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109612343B (en) * | 2018-12-04 | 2021-06-11 | 南京理工大学 | Y-shaped point fire transmission tube for balance gun |
| CN109579627B (en) * | 2018-12-04 | 2021-08-03 | 南京理工大学 | Nested ignition tube for balance gun |
| CN113048847A (en) * | 2021-03-23 | 2021-06-29 | 哈尔滨工程大学 | Gradient type uniform detonation center booster based on multiple ignition positions |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3217976A1 (en) * | 1982-05-13 | 1983-11-17 | Bundesamt für Wehrtechnik u. Beschaffung, 5400 Koblenz | Propellant-charge igniter for propellant charges of extremely high charging density |
| US4669383A (en) * | 1984-05-07 | 1987-06-02 | Dynamit Nobel Aktiengesellschaft | Propellant charge igniter |
| FR2559255B1 (en) * | 1984-02-03 | 1987-07-24 | Brandt Armements | IGNITER AND IGNITION CARTRIDGE FOR PROPULSIVE CHARGE OF PROJECTILE |
| EP0237711A2 (en) * | 1986-01-18 | 1987-09-23 | Dynamit Nobel Aktiengesellschaft | Primer for a cartridge propellant charge |
| GB2310031A (en) * | 1996-02-09 | 1997-08-13 | Diehl Gmbh & Co | Igniter unit for a propellant charge |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2806789B1 (en) * | 2000-03-23 | 2002-06-07 | Giat Ind Sa | IGNITION TUBE FOR ARTILLERY AMMUNITION |
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- 2014-12-13 CN CN201410772328.5A patent/CN104534945B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3217976A1 (en) * | 1982-05-13 | 1983-11-17 | Bundesamt für Wehrtechnik u. Beschaffung, 5400 Koblenz | Propellant-charge igniter for propellant charges of extremely high charging density |
| FR2559255B1 (en) * | 1984-02-03 | 1987-07-24 | Brandt Armements | IGNITER AND IGNITION CARTRIDGE FOR PROPULSIVE CHARGE OF PROJECTILE |
| US4669383A (en) * | 1984-05-07 | 1987-06-02 | Dynamit Nobel Aktiengesellschaft | Propellant charge igniter |
| EP0237711A2 (en) * | 1986-01-18 | 1987-09-23 | Dynamit Nobel Aktiengesellschaft | Primer for a cartridge propellant charge |
| GB2310031A (en) * | 1996-02-09 | 1997-08-13 | Diehl Gmbh & Co | Igniter unit for a propellant charge |
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| CN104534945A (en) | 2015-04-22 |
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