阅读说明：本技术 一种同轴并联高装填密度底排减阻増程炮弹 (Coaxial parallel high-loading-density bottom-row anti-drag range-increasing shell ) 是由 赵晓尧 王守仁 杨朝霞 马荣华 陈志刚 潘玉田 于 2020-07-13 设计创作，主要内容包括：本发明公开了一种同轴并联高装填密度底排减阻増程炮弹,包括战斗部、固体发动机和弹底结构,战斗部包括战斗部壳体和炸药,固体发动机包括固体发动机壳体和发射药,固体发动机壳体一端设置在战斗部壳体内部,固体发动机壳体另一端与战斗部壳体固定连接,弹底结构一端与战斗部壳体固定连接,弹底结构内设有底排装药,弹底结构上设有用于排出所述底排装药和发射药燃烧产物的通孔,固体发动机壳体和战斗部壳体同轴设置,炸药装填在战斗部壳体内部,发射药装填在固体发动机壳体内部。本发明的技术方案兼顾了炮弹威力和射程的需求,具有结构简单、便于生产、安全可靠,使用要求低等优点。(The invention discloses a coaxial parallel high-loading-density bottom-discharge anti-drag range-extending projectile, which comprises a warhead, a solid engine and a projectile bottom structure, wherein the warhead comprises a warhead shell and explosive, the solid engine comprises a solid engine shell and propellant powder, one end of the solid engine shell is arranged in the warhead shell, the other end of the solid engine shell is fixedly connected with the warhead shell, one end of the projectile bottom structure is fixedly connected with the warhead shell, bottom-discharge explosive is arranged in the projectile bottom structure, a through hole for discharging the bottom-discharge explosive and a propellant powder combustion product is arranged on the projectile bottom structure, the solid engine shell and the warhead shell are coaxially arranged, the explosive is loaded in the warhead shell, and the propellant powder is loaded in the solid engine shell. The technical scheme of the invention gives consideration to the requirements of the shell power and the firing range, and has the advantages of simple structure, convenience in production, safety, reliability, low use requirement and the like.)

1. The utility model provides a coaxial parallelly connected high packing density end row drag reduction range increase shell which characterized in that: including warhead, solid engine and bullet bottom structure, warhead includes warhead casing and explosive, the solid engine includes solid engine casing and propellant powder, solid engine casing one end sets up inside the warhead casing, the solid engine casing other end with warhead casing fixed connection, bullet bottom structure one end with warhead casing fixed connection, be equipped with end discharge powder in the bullet bottom structure, the structural through-hole of offering of bullet bottom discharge powder with propellant powder combustion products, the solid engine casing with the coaxial setting of warhead casing, the explosive is loaded inside the warhead casing, the propellant powder is loaded inside the solid engine casing.

2. The coaxial parallel high-loading-density bottom-row resistance-reducing range-increasing projectile as recited in claim 1, wherein: the warhead shell comprises a warhead outer shell and a warhead inner shell, one end of the warhead inner shell is connected with one end of the warhead outer shell through a first annular connecting part, the warhead inner shell is positioned in the warhead outer shell and coaxially arranged, and the explosive is filled in a cavity between the warhead inner shell and the warhead outer shell; the solid engine is disposed inside the warhead inner shell.

3. The coaxial parallel high-loading-density bottom-row resistance-reducing range-increasing projectile as recited in claim 2, wherein: the solid engine shell comprises a solid engine shell and a second annular connecting part, one end of the solid engine shell is connected with the first annular connecting part through the second annular connecting part, and the propellant powder is filled in a cavity formed by the solid engine shell and the second annular connecting part.

4. The coaxial parallel high-loading-density bottom-row resistance-reducing range-increasing projectile as recited in claim 3, wherein: there is a uniform gap between the warhead inner shell and the solid engine outer shell, the gap being vacuum insulated or filled with an insulating material.

5. The coaxial parallel high-loading-density bottom-row resistance-reducing range-increasing projectile as recited in claim 3, wherein: the second annular connecting portion is fixedly connected with a spray pipe, one end of the spray pipe is provided with a sealing igniter and extends to the through hole, the sealing igniter is used for igniting the propellant powder, the other end of the spray pipe is communicated with an inner cavity of the solid engine, and the spray pipe is used for spraying combustion products of the propellant powder.

6. The coaxial parallel high-loading-density bottom-row resistance-reducing range-increasing projectile as recited in claim 5, wherein: the axis of the propellant powder is provided with a guide hole communicated with the spray pipe.

7. The coaxial parallel high-loading-density bottom-row resistance-reducing range-increasing projectile as recited in claim 5, wherein: and a gap is reserved between the bottom discharge charge and the spray pipe, and the gap is used as a chamber pressure ignition channel and an exhaust channel when the bottom discharge charge is combusted.

8. The coaxial parallel high-loading-density bottom row drag-reducing range-increasing projectile as recited in any one of claims 1-7, wherein: the bullet bottom structure comprises a bullet bottom shell, the through hole is formed in the bottom of the bullet bottom shell, and a bullet body belt, a bullet bottom belt matched with the gun rifling and a closed air ring are sequentially arranged on the bullet bottom shell.

9. The coaxial parallel high-loading-density bottom-row resistance-reducing range-increasing projectile as recited in claim 8, wherein: the detonator is arranged at the front end of the warhead shell and is used for detonating the explosive.

Technical Field

The invention relates to the technical field of middle trajectories, provides a loading mode of coaxially and parallelly connecting warhead powder charge and solid engine powder charge, and particularly relates to a coaxially and parallelly connected high-loading-density bottom-row anti-drag range-increasing projectile.

Background

The artillery projectile solid-launching range-extending design generally adopts a structural design that a warhead is arranged in front of a solid engine and charges powder behind the solid engine, and can meet the requirements of damage power and range under the condition of low range-extending requirement. However, in recent years, the remote striking capability of artillery projectiles is improved in all countries, and in order to guarantee fire suppression, the requirement for range is continuously increased on the basis of manufactured ammunition, so that the difficulty of range extension design is increased under the condition of considering strength.

Disclosure of Invention

The invention aims to provide a coaxial parallel high-loading-density bottom-row anti-drag range-increasing projectile, and aims to achieve the aims of giving consideration to the damage effect and increasing the height and the range of the projectile.

In order to achieve the purpose, the invention provides the following scheme:

the invention provides a coaxial parallel high-loading-density bottom-row anti-drag range-extending cannonball, which comprises a warhead, a solid engine and a cannonball bottom structure, the warhead comprises a warhead shell and explosive, the solid engine comprises a solid engine shell and propellant powder, one end of the solid engine shell is arranged in the warhead shell, the other end of the solid engine shell is fixedly connected with the warhead shell, one end of the bullet bottom structure is fixedly connected with the warhead shell, bottom discharge powder is arranged in the bullet bottom structure, the bullet bottom structure is provided with a through hole for discharging the bottom discharge charge and the propellant powder combustion products, the solid engine shell and the warhead shell are coaxially arranged, the explosive is filled in the warhead shell, and the propellant powder is filled in the solid engine shell.

Further, the warhead housing comprises a warhead outer shell and a warhead inner shell, one end of the warhead inner shell is connected with one end of the warhead outer shell through a first annular connecting part, the warhead inner shell is positioned in the warhead outer shell and coaxially arranged, and the explosive is filled in a cavity between the warhead inner shell and the warhead outer shell; the solid engine is disposed inside the warhead inner shell.

Further, the solid engine shell comprises a solid engine shell and a second annular connecting part, one end of the solid engine shell is connected with the first annular connecting part through the second annular connecting part, and the propellant powder is filled in a cavity formed by the solid engine shell and the second annular connecting part.

Further, there is a uniform gap between the warhead inner shell and the solid engine outer shell, which gap is vacuum insulated or filled with an insulating material.

Furthermore, the second annular connecting part is fixedly connected with a spray pipe, one end of the spray pipe is provided with a sealing igniter and extends to the through hole, the sealing igniter is used for igniting the propellant powder, the other end of the spray pipe is communicated with the inner cavity of the solid engine, and the spray pipe is used for spraying combustion products of the propellant powder.

Furthermore, a guide hole communicated with the spray pipe is arranged on the axis of the propellant powder.

Further, a gap is reserved between the bottom discharge charge and the spray pipe, and the gap is used as a chamber pressure ignition channel and an exhaust channel when the bottom discharge charge is combusted.

Furthermore, the bullet bottom structure comprises a bullet bottom shell, the through hole is formed in the bottom of the bullet bottom shell, and a bullet body belt, a bullet bottom belt matched with the gun rifling and a closed air ring are sequentially arranged on the bullet bottom shell.

Further, the detonator also comprises a detonator, wherein the detonator is arranged at the front end of the warhead shell and is used for detonating the explosive.

Compared with the prior art, the invention has the following technical effects:

the invention provides a loading mode of coaxially and parallelly connecting warhead powder charge and solid engine powder charge, through coaxially and parallelly connecting explosive and propellant powder, the effective powder charge space of a projectile is reasonably utilized, the aim of high-loading-density powder charge is achieved, the quality of a warhead shell and the quality of a solid engine shell are utilized as effective quality and a killing fragment, the quality is reasonably utilized, the damage effect is improved, and the pneumatic appearance of the projectile is very friendly. The bottom discharge charge is arranged in the bullet bottom structure, the bottom discharge charge is ignited by the pressure of the chamber, and gas generated by combustion of the bottom discharge charge after the bullet is discharged from a muzzle can fill air at the tail part, so that the bottom resistance effect of the bullet is reduced, and the air resistance is reduced. After the propellant powder of the solid engine is ignited, the projectile is continuously pushed to fly, and the range is extended.

The technical scheme of the invention gives consideration to the requirements of the shell power and the firing range, and has the advantages of simple structure, convenience in production, safety, reliability, low use requirement and the like.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic diagram of an overall structure of a coaxial parallel high-loading-density bottom-row anti-drag range-increasing projectile according to the present invention;

FIG. 2 is a schematic structural view of a coaxial parallel high-loading-density bottom-row anti-drag range-increasing projectile of the present invention with the middle portion omitted;

wherein: 1-fuze, 2-explosive, 3-warhead shell, 4-heat insulation material, 5-solid engine shell, 6-propellant powder, 7-spray pipe, 8-projectile body and belt, 9-projectile bottom and belt, 10-closed air ring, 11-projectile bottom shell, 12-sealed igniter and 13-bottom discharge powder.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1-2: the embodiment provides a coaxial parallelly connected high packing density end row drag reduction increases journey shell, including fuse 1, warhead, solid engine and bullet end structure, warhead includes warhead casing 3 and explosive 2, and explosive 2 loads inside warhead casing 3. The fuze 1 is arranged at the front end of a warhead shell 3 and is used for detonating an explosive 2. One end of the bullet bottom structure is fixedly connected with the warhead shell 3, and bottom discharge powder is arranged in the bullet bottom structure. The bullet end structure includes shell 11 at the bottom of the bullet, and 11 intensity at the bottom of the bullet is enough to bear the high pressure when the artillery is launched, and shell 11 and warhead portion casing 3 fixed connection at the bottom of the bullet, 11 bottom center departments at the bottom of the shell are equipped with the through-hole that is used for discharging the combustion products of end discharge powder charge 13 and propellant powder 6 at the bottom of the bullet, and the shell is taken 8 after to in proper order at the bottom of the bullet in the past on the shell 11 at the bottom of the bullet, and bullet is taken 9 at the bottom of the bullet that agrees with the gun rifling. When the cannonball flies away from the bore, the bullet bottom structure rotates at high speed under the action of the bullet bottom belt 9 and seals high-pressure high-temperature fuel gas, and the bullet body belt 8 is sleeved outside the bullet bottom shell 11 as a bullet belt with the rotation reducing function, so that the rotating speed of a cannon opening of the cannonball is reduced.

The solid engine comprises a solid engine shell 5 and propellant powder 6, one end of the solid engine shell 5 is arranged inside a warhead shell 3, the other end of the solid engine shell 5 is fixedly connected with the warhead shell 3, the solid engine shell 5 and the warhead shell 3 are coaxially arranged, and the propellant powder 6 is filled inside the solid engine shell 5, so that the explosive 2 and the propellant powder 6 are coaxially arranged in parallel.

Specifically, the warhead housing 3 includes a warhead outer shell and a warhead inner shell, one end of the warhead inner shell is connected with one end of the warhead outer shell through a first annular connecting portion, the warhead inner shell is located in the warhead outer shell and coaxially arranged, and the explosive 2 is filled in a cavity between the warhead inner shell and the warhead outer shell.

The solid engine sets up inside the warhead inner shell, and solid engine housing 5 includes solid engine shell and second annular connecting portion, has even clearance between warhead inner shell and the solid engine shell, and the terminal surface can be plane or sphere before the two, and the clearance packing has heat-insulating material 4, and the one end of solid engine shell is connected with first annular connecting portion through second annular connecting portion, seals this clearance, and the connected mode can be for welding, interference fit (the magnitude of interference is great), threaded connection, bolted connection, flange joint etc.. The thermal insulation material 4 or the vacuuming treatment can play a role of thermal insulation and is used for protecting the explosive 2 at the warhead part from sympathetic explosion due to overhigh temperature when the solid engine works.

The second annular connecting part is fixedly connected with a spray pipe 7, one end of the spray pipe 7 is provided with a sealed igniter 12 and extends to the through hole of the bullet bottom shell, the sealed igniter 12 is used for keeping initial internal pressure and igniting propellant 6 at a proper time, the other end of the spray pipe 7 is communicated with the inner cavity of the solid engine, the propellant 6 is filled in a cavity formed by the inner shell of the solid engine and the second annular connecting part, and the axis of the propellant 6 is provided with a guide hole communicated with the spray pipe 7. The lance 7 is used to eject the combustion products of the propellant charge 6.

The bottom discharge charge 13 is arranged in an annular cavity between the bottom discharge shell 11 and the spray pipe 7, a gap is left between the bottom discharge charge 13 and the spray pipe 7, and the gap is used as a chamber pressure ignition channel and an exhaust channel when the bottom discharge charge is combusted.

When the shell leaves the bore, high-temperature and high-pressure gas in the bore ignites the bottom explosive charge 13 through a gap between the bottom explosive charge 13 and the spray pipe 7, and the bottom explosive charge 13 burns to generate gas to fill air at the bottom of the bullet, so that the bottom resistance effect of the bullet is reduced, the air resistance is reduced, and the firing range is improved. The sealed igniter 12 is ignited at the best moment after the bottom discharge charge is finished, the propellant powder 6 is ignited, the combustion surface is a guide hole, the thickness of the fuel from the combustion surface to the outer shell of the solid engine is consistent, the outer shell of the solid engine and the inner shell of the warhead are effectively protected from being overhigh in local temperature caused by uneven heating, the requirement on the heat-insulating material 4 is reduced, the propellant powder 6 is combusted to generate a large amount of gas, the gas is sprayed out from the spray pipe 7, the sealed igniter 12 is separated, the solid engine pushes the projectile to continuously advance and improve the speed of the projectile, and the range can be further improved. After the projectile flies to the destination, the fuze 1 detonates the explosive 2 inside the warhead and generates shell fragments to damage the target.

It is to be understood that the terms "front," "back," "left," "right," "upper," "lower," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings and are used for convenience in describing the invention and for simplicity in description, and are not intended to indicate or imply that the referenced devices or components must be in a particular orientation, constructed and operated in a particular orientation, and are therefore not to be considered limiting of the scope of the invention.

The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.