阅读说明：本技术 一种同轴并联装药潜入固发弹底分离减质增程炮弹 (Coaxial parallel-charge bottom-separation solid-propellant projectile reducing and range-extending projectile ) 是由 赵晓尧 马荣华 王守仁 杨朝霞 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装药潜入固发弹底分离减质增程炮弹,包括战斗部、固体发动机和弹底结构,所述战斗部包括战斗部壳体和炸药,所述固体发动机包括固体发动机壳体和发射药,所述固体发动机壳体一端设置在所述战斗部壳体内部,所述固体发动机壳体另一端突出于所述战斗部壳体延伸至所述弹底结构内,所述弹底结构一端与所述战斗部壳体触接,所述固体发动机壳体和所述战斗部壳体同轴设置,所述炸药装填在所述战斗部壳体内部,所述发射药装填在所述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-charge solid-propellant bullet bottom separation mass-reduction range-extending projectile, which comprises a warhead, a solid engine and a bullet 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 protrudes out of the warhead shell and extends into the bullet bottom structure, one end of the bullet bottom structure is in contact with the warhead shell, 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. 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 powder charge dives solid bullet bottom separation and subtracts matter increase journey shell which characterized in that: including warhead, solid engine and bullet end 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 salient in the warhead casing extends to in the bullet end structure, bullet end structure one end with warhead casing touches and connects, 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-charge bottom-separation reduced-mass extended-range projectile of 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-charge bottom-separation reduced-mass extended-range projectile of claim 2, wherein: the solid engine shell comprises a solid engine outer shell and a solid engine inner shell, one end of the solid engine inner shell is connected with one end of the solid engine outer shell through a second annular connecting portion, the solid engine inner shell is located in the solid engine outer shell and coaxially arranged, the projection of the solid engine inner shell in the axial direction is not overlapped with the fighting portion inner shell, the propellant powder is filled in a cavity between the solid engine inner shell and the solid engine outer shell, a mounting ring is arranged on the solid engine outer shell, and the mounting ring is connected with the first annular connecting portion.

4. The coaxial parallel-charge bottom-separation reduced-mass extended-range projectile of 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-charge bottom-separation reduced-mass extended-range projectile of claim 3, wherein: the solid engine comprises a solid engine inner shell, and is characterized in that a submerged nozzle is fixedly connected inside the solid engine inner shell, one end of the submerged nozzle is provided with a sealed igniter, the sealed igniter is used for igniting the propellant after the coaxial parallel-charge submerged solid-propellant bottom separation reduced range projectile leaves a bore, the other end of the submerged nozzle is communicated with an inner cavity of the solid engine, the submerged nozzle is used for ejecting combustion products of the propellant, the outer wall of the submerged nozzle is provided with a spacer ring, and an annular heat insulation space is formed between the submerged nozzle and the solid engine inner shell through the spacer ring.

6. The coaxial parallel-charge bottom-separation reduced-stroke projectile of claim 5, wherein: and the axis of the propellant is provided with a guide hole communicated with the submerged nozzle.

7. The coaxial parallel-charge bottom-separation reduced-mass extended-range projectile of any one of claims 1 to 6, wherein: the bullet bottom structure comprises a bullet bottom shell, wherein a bullet body belt, a bullet bottom belt and an air-closed ring are sequentially arranged on the bullet bottom shell, the bullet bottom belt is matched with the rifling of a gun, and the bullet bottom shell is connected with the smooth surface of the warhead shell in an interference fit manner or through a bearing, so that the bullet bottom shell can rotate relative to the warhead shell in the launching process.

8. The coaxial parallel-charge bottom-separation reduced-stroke projectile of claim 7, 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 trajectory, provides a loading mode of coaxially and parallelly connecting warhead charge and solid engine charge, and particularly relates to a coaxial parallel charge submerged solid-engine bottom separation mass-reducing range-extending projectile.

Background

The artillery projectile fixed-launching range-extending design generally adopts a structural design that a warhead is arranged in front of the artillery projectile and a solid engine is loaded with powder at the back of the artillery projectile fixed-launching range-extending design, 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.

In addition, the projectile bottom structure of the artillery projectile mainly bears high overload during launching and is used for protecting a projectile combat damage part from being damaged by high chamber pressure, so that the structure is thick and heavy. In addition, a copper sealing bullet belt is generally arranged on the bullet bottom, the mass of the bullet bottom consumes the total impact provided by the solid engine charge during the range extension, the negative mass of the bullet during the flight belongs to the negative mass of the bullet, and the design of the range extension of the bullet is not facilitated. I.e. the bottom of the projectile does not play any positive role in the flight of the projectile after it has left the bore, but rather the velocity of the projectile may be reduced to some extent by the presence of the bottom drag.

Disclosure of Invention

The invention aims to provide a coaxial parallel-charge bottom-separation mass-reduction and range-extension projectile capable of diving into a solid 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-charge solid-propellant-bullet bottom separation mass-reduction range-extending projectile which comprises a warhead, a solid engine and a bullet 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 protrudes out of the warhead shell and extends into the bullet bottom structure, one end of the bullet bottom structure is in contact with the warhead shell, 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.

Furthermore, 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.

Further, the solid engine housing comprises a solid engine outer shell and a solid engine inner shell, one end of the solid engine inner shell is connected with one end of the solid engine outer shell through a second annular connecting portion, the solid engine inner shell is located in the solid engine outer shell and coaxially arranged, the solid engine inner shell is not overlapped with the warhead inner shell in the axial direction, the propellant powder is filled in a cavity between the solid engine inner shell and the solid engine outer shell, and a mounting ring is arranged on the solid engine outer shell and connected with the first annular connecting portion.

Further, 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.

Furthermore, the inside fixedly connected with of solid engine inner shell sneaks into the spray tube, dive into spray tube one end and is equipped with sealed some firearms, sealed some firearms be used for coaxial parallel charge sneaks into solid and launch the bullet at the bottom of the separation and subtract matter and increase journey shell and ignite the propellant powder after leaving the bore, dive into the spray tube other end with the inner chamber intercommunication of solid engine, the dive into spray tube is used for spouting the combustion products of propellant powder, be equipped with the spacer ring on the dive into spray tube outer wall, the spacer ring makes dive into the spray tube with have the annular space that insulates against heat between the solid engine inner shell.

Furthermore, a guide hole communicated with the submerged nozzle is formed in the axis of the propellant powder.

Furthermore, the bullet bottom structure comprises a bullet bottom shell, wherein a bullet body belt, a bullet bottom belt and an air-closing ring are sequentially arranged on the bullet bottom shell, the bullet bottom belt is matched with the gun rifling, and the bullet bottom shell is in interference fit connection with the smooth surface of the warhead shell or is connected with the warhead shell through a bearing, so that the bullet bottom shell can rotate relative to the warhead shell in the launching process.

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 invention also enlarges the internal space of the solid engine by utilizing the internal space of the bullet bottom structure, thereby increasing the loading quantity. The gas generated by the burning of the propellant powder after the solid engine is ignited enables the projectile bottom structure to be separated from the warhead shell, the negative mass of the projectile in flight is reduced, the solid engine continues to push the rest of the payload to fly, the design method of the separated projectile bottom structure also effectively reduces the air resistance of the projectile in the air flight process, and the projectile flying weight and the air resistance are reduced, so that the propellant powder under the same charging condition enables the projectile to fly farther and have higher height.

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 the overall structure of a coaxial parallel-charge bottom-separated mass-reduced extended-range projectile with a submerged solid projectile according to the invention;

FIG. 2 is a schematic structural view of the coaxial parallel-charge submersible solid-propellant bottom separation mass-reduced range-extending projectile of the invention with the middle part omitted;

FIG. 3 is a schematic structural diagram of the separated bottom structure of the coaxial parallel-charge submerged solid-propellant projectile bottom separated mass-reduced extended-range projectile of the invention;

wherein: 1-fuze, 2-explosive, 3-warhead shell, 4-heat insulation material, 5-solid engine shell, 6-propellant powder, 7-submerged nozzle, 8-projectile band, 9-missile base band, 10-closed gas ring, 11-missile base shell and 12-sealed igniter.

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. 1-3: the embodiment provides a coaxial parallel-charge bottom-separation mass-reduction range-extending projectile with a submerged solid-propellant projectile, which comprises a fuse 1, a warhead, a solid engine and a projectile bottom structure, wherein the warhead comprises a warhead shell 3 and an explosive 2, and the explosive 2 is filled in the warhead shell 3. The fuze 1 is arranged at the front end of a warhead shell 3 and is used for detonating an explosive 2. The bullet end structure includes bullet end casing 11, and 11 intensity of bullet end casing is enough to bear the high pressure when the gun launches, and bullet end casing 11 is connected with 3 plain noodles interference fit of warhead portion casing (the magnitude of interference is less), also can connect through the bearing, makes bullet end casing 11 can be rotatory for warhead portion casing 3 in the bore, is equipped with projectile body bullet area 8 on the bullet end casing 11, with the identical bullet end bullet area 9 of bore line of cannon and closed gas ring 10. When the shell flies away from the bore, the bottom structure of the shell rotates at high speed under the action of the bottom shell belt 9 and seals high-pressure high-temperature gas, the pushed projectile is small in radial rotating force and can only rotate at low speed under the action of inertia, and the rotating speed of the projectile can be further reduced if the projectile is connected by adopting a bearing, so that the rotating speed of the projectile outlet is low, and the work of a guidance control system is facilitated.

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 protrudes out of the warhead shell 3 and extends into a bullet bottom structure, the length of the solid engine shell 5 inside the warhead shell 3 is obviously larger than that inside the bullet bottom structure, 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 is arranged in the inner shell of the warhead, the solid engine shell 5 comprises a solid engine shell and a solid engine inner shell, an even gap is formed between the inner shell of the warhead and the solid engine shell, the front end face can be a plane or a spherical surface, the gap is filled with a heat insulating material 4 or vacuumized, the solid engine shell is provided with a mounting ring, the mounting ring is connected with the first annular connecting part to seal the gap, and the connecting mode can be welding, interference fit (interference is large), threaded connection, bolt connection, flange connection and the like. The thermal insulation material 4 or the vacuuming treatment can play a role of thermal insulation and is used for ensuring that the explosive 2 at the warhead part is protected from being detonated due to overhigh temperature when the solid engine works. One end of the solid engine inner shell is connected with one end of the solid engine outer shell through a second annular connecting portion, and the solid engine inner shell is located in the solid engine outer shell and coaxially arranged. The solid engine inner casing does not overlap the warhead inner casing in the axial direction, and preferably the adjacent end faces are flush.

The solid engine inner shell is fixedly connected with a submerged nozzle 7, one end of the submerged nozzle 7 is provided with a sealed igniter 12, the sealed igniter 12 is used for keeping initial internal pressure and igniting propellant powder 6 after the coaxial parallel-charging submerged solid-propellant bottom separation distance-increasing projectile leaves a bore, the other end of the submerged nozzle 7 is communicated with an inner cavity of the solid engine, the propellant powder 6 is filled in a cavity between the solid engine inner shell and the solid engine outer shell, and a guide hole communicated with the submerged nozzle 7 is formed in the axis of the propellant powder 6. The submerged nozzle 7 is used for spraying combustion products of the propellant 6, the outer wall of the submerged nozzle 7 is provided with a spacer ring, the spacer ring enables an annular heat insulation space to be formed between the submerged nozzle 7 and an inner shell of the solid engine, and the connection mode can be welding, interference fit (large interference), threaded connection, bolt connection, flange connection and the like.

After the shell leaves the bore, the sealed igniter 12 ignites at the best moment, the propellant powder 6 is ignited, the combustion surface is a guide hole, the thickness of the propellant powder 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 due to uneven heating, the requirement on the heat-insulating material 4 is lowered, the propellant powder 6 is combusted to generate a large amount of gas and is sprayed out from the submerged spray pipe 7, the sealed igniter 12 is separated, the internal pressure of the projectile bottom structure is rapidly increased to push the projectile bottom shell 11 to be separated from the outer shell of the warhead, the flying weight of the projectile is reduced, the solid engine pushes the projectile to continuously advance and improve the projectile speed, and the range. 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.