CN115307492A - High-speed rotation stable small-caliber broken nail killing grenade - Google Patents
High-speed rotation stable small-caliber broken nail killing grenade Download PDFInfo
- Publication number
- CN115307492A CN115307492A CN202210926390.XA CN202210926390A CN115307492A CN 115307492 A CN115307492 A CN 115307492A CN 202210926390 A CN202210926390 A CN 202210926390A CN 115307492 A CN115307492 A CN 115307492A
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- Prior art keywords
- projectile body
- grenade
- caliber
- killing
- small
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B12/00—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
- F42B12/02—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect
- F42B12/20—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect of high-explosive type
- F42B12/22—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect of high-explosive type with fragmentation-hull construction
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B12/00—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
- F42B12/02—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect
- F42B12/04—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect of armour-piercing type
- F42B12/08—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect of armour-piercing type with armour-piercing caps; with armoured cupola
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B12/00—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
- F42B12/02—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect
- F42B12/20—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect of high-explosive type
- F42B12/207—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect of high-explosive type characterised by the explosive material or the construction of the high explosive warhead, e.g. insensitive ammunition
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
Abstract
The invention relates to the technical field of ammunition, in particular to a small-caliber armor breaking and killing grenade which rotates stably at a high speed, and the small-caliber armor breaking and killing grenade is a fixed-setting ammunition consisting of a fuse, a warhead and a propellant charge; the warhead comprises a projectile body and a projectile body charge arranged in the projectile body; the fuze and the upper projectile body and the lower projectile body are assembled in a threaded mode, and the closed positions of the fuze and the upper projectile body and the closed positions of the fuze and the lower projectile body are matched in a conical surface mode; the diameter of the fuse is equal to that of the upper projectile body, and the head of the fuse is spherical; the lower projectile body is tightly combined with the rear tight opening of the propellant charge in an interference fit mode, a bottom recess is formed in the tail portion of the lower projectile body, and a plurality of air guide holes penetrating through the lower projectile body are evenly formed in the side wall of the bottom recess. The invention improves the flight stability and the striking precision of the grenade; simultaneously, the power of breaking the nails and the power of killing the nails are improved; and has strong anti-interference capability, self-destruction function and self-disabling function.
Description
Technical Field
The invention relates to the technical field of ammunition, in particular to a small-caliber broken nail killing grenade which can stably rotate at a high speed.
Background
At present, small-caliber grenades are mainly grenade launcher ammunitions at home and abroad, and the grenades killed by the broken armor are one single type of grenades, so that the grenades have double functions of breaking the armor and killing the armor. However, the existing grenade launcher ammunition, especially the broken nail killing grenade, has the following defects:
1. the long-distance striking precision is insufficient: the assembly precision of the fuze, the warhead and the warhead body is difficult to guarantee, so that the surface of the projectile has fluctuation, and the surface of the projectile generates gas turbulence in the high-speed rotating flying process, thereby influencing the flying stability and the hitting precision of the projectile;
2. the shot has insufficient anti-interference capability, large bottom resistance and poor ballistic performance;
3. the power of warhead damage and armor breaking is low, and especially the capacity of aftereffect damage is poor; 4. the fuse has no self-destruction and self-incapability (fire-proof) function.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides the small-caliber broken armor grenade which can stably rotate at high speed and kill the grenade.
The technical scheme adopted by the invention for solving the technical problems is as follows:
providing a small-caliber armor breaking and killing grenade which rotates stably at high speed, wherein the grenade is a fixed-setting ammunition consisting of a fuse, a warhead and a propellant charge; the warhead comprises a projectile body and a projectile body charge arranged in the projectile body; the projectile body consists of an upper projectile body and a lower projectile body, the fuze and the upper projectile body and the lower projectile body are assembled through threads, and the closed parts of the fuze and the upper projectile body and the lower projectile body are matched through conical surfaces; the diameter of the fuse is equal to that of the upper projectile body, and the head of the fuse is spherical; the lower projectile body is tightly combined with the propellant charge in an interference fit mode and then tightened, a bottom recess is formed in the tail portion of the lower projectile body, and a plurality of air guide holes penetrating through the lower projectile body are evenly distributed in the side wall of the bottom recess.
In a preferred embodiment of the high-speed rotation stable small-caliber broken nail grenade of the present invention, the belt is disposed on the lower projectile body.
In a preferred embodiment of the high-speed rotation stable small-caliber broken armor killing grenade provided by the invention, the charging cavity of the upper projectile body is a large-diameter cavity, a conical transition cavity and a small-diameter cavity from the head part to the tail part in sequence; the large-diameter cavity and the small-diameter cavity are pre-engraved with wire grooves interwoven into meshes, so that each mesh is in a shuttle shape.
In a preferred embodiment of the high-speed rotation stable small-caliber armor-breaking grenade provided by the invention, the projectile charge comprises a charge column, a booster tube, an inert partition plate and a shaped charge cover; the liner, the inert partition plate and the detonating tube are sequentially assembled in the inner cavity of the charge column from top to bottom; the shape of the explosive column is matched with that of the explosive cavity; the liner does not extend beyond the tapered transition cavity.
In a preferred embodiment of the high-speed rotation stable small-caliber broken nail killing grenade provided by the invention, the length of the grain in the large-diameter cavity is not less than 25mm.
In a preferred embodiment of the small-caliber broken nail killer grenade with high-speed and stable rotation provided by the invention, the inert partition plate is annular, and the inner diameter of the inert partition plate is smaller than that of the grain.
In a preferred embodiment of the small-caliber killing grenade with high-speed rotation stability provided by the invention, the booster comprises a booster and a pipe shell, and the booster is filled in the pipe shell.
In a preferred embodiment of the small-caliber broken nail grenade with stable high-speed rotation provided by the invention, the diameter of the booster is 10mm, and the thickness of the booster is 3mm.
In a preferred embodiment of the small-caliber broken armor grenade with high-speed and stable rotation provided by the invention, the fuze adopts a fuze with 2 sets of built-in ignition mechanisms and self-destruction and self-invalidation functions.
Compared with the prior art, the small-caliber broken nail killing grenade with stable high-speed rotation provided by the invention has the following beneficial effects:
1. the invention adopts conical surface positioning for the combination surfaces of the upper projectile body, the lower projectile body, the upper projectile body and the fuse, thereby ensuring the coaxiality and the connection strength of the projectile body and the fuse, the outer surface of the formed projectile is integrated, the outer surface of the projectile is basically the same cylindrical size surface, the projectile is of a full-centering structure, surface fluctuation does not exist, and the surface can not generate gas turbulence because of surface mutation, thereby eliminating the influence of the gas turbulence of the outer surface on the precision, equivalently lengthening the length of the cylindrical section of the projectile, and improving the guiding performance in a chamber;
2. the head of the projectile is spherical, although the projectile has higher aerodynamic resistance, disturbance interference in all directions is vertical to the spherical surface, and acting force passes through the center of the sphere on the axis, so that the projectile has the characteristic of strong anti-interference capability;
3. the lower projectile body is provided with the bottom recess, so that the strength of low-pressure eddy current at the bottom of the projectile is weakened, and a local vacuum area is filled with air, so that the pressure at the bottom of the projectile is improved, the resistance at the bottom is reduced, and the firing range is increased; furthermore, a plurality of air guide holes are formed in the side wall of the bottom recess, so that external air flow can enter the bottom recess, the air pressure at the bottom of the projectile is increased, the bottom resistance is further reduced, the trajectory is lower in stretching performance, and the trajectory performance is improved;
4. the projectile body adopts a pre-control fragment technology, so that the consistency of the shape and the quality of fragments is ensured when the projectile body is crushed, and the killing power is improved;
5. according to the explosive shell, the inert partition plate is arranged in the explosive charging structure of the shell and is placed between the detonation tube and the explosive column, so that the effect of changing the detonation direction of detonation waves is achieved, the crushing force on the liner is improved, and the power for breaking nails is improved;
6. according to the invention, the shaped charge cover of the bullet charge structure is arranged in the large-diameter cavity in the upper bullet body, so that the effective charge amount of the warhead is increased, compared with the traditional structure, the mutability of the shaped charge cover end structure of the explosive column is eliminated, and the influence on the detonation stability of the explosive is eliminated;
7. the booster adopted by the invention has the advantages that the booster layer is thin, the length-diameter ratio is small, the integral structure is short and thick, after detonation, the detonation direction of detonation waves is changed into radial wave transmission, the effect of changing the wave transmission direction of the detonation waves of explosives is achieved, the crushing force on the shaped charge liner is enhanced, and the power for breaking nails is improved;
8. the fuse adopted by the invention has the self-destruction function and the self-incapability (fire extinction) function.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:
figure 1 is an assembly structure view of a high-speed rotation stable small-caliber broken nail killing grenade provided by the invention;
FIG. 2 is a block diagram of the fuze and warhead assembled projectile provided in FIG. 1;
FIG. 3 is a cross-sectional view of the projectile provided in FIG. 1;
FIG. 4 is a schematic illustration of the structure of the elastomeric charge provided in FIG. 1;
fig. 5 is a schematic structural view of the booster provided in fig. 4.
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.
Example one
The embodiment provides a small-caliber broken nail killing grenade which rotates stably at a high speed, and the grenade is a fixed-setting ammunition which consists of a fuse 1, a warhead 2 and a propellant charge 3, as shown in attached figures 1 to 3. The warhead 2 of the embodiment comprises a projectile body 2.1 and a projectile body charge 2.2 arranged in the projectile body; as shown in fig. 3, the projectile body 2.1 is composed of an upper projectile body 2.1.1 and a lower projectile body 2.1.2, and specifically includes: the upper projectile body 2.1 and the lower projectile body 2.2 are assembled in a threaded mode, the closed positions of the upper projectile body and the lower projectile body are matched through conical surfaces 2.1.0, and the coaxiality and the connection strength of the projectile bodies can be guaranteed through the connection mode; similarly, as shown in fig. 2, the fuze 1 and the upper projectile body 2.1.1 of the present embodiment are assembled by using threads, and the closed part is matched by using a conical surface 2.1.0; and the diameter of the fuze 1 is equal to the diameter of the upper projectile body 2.1.1. The combined surface of the upper projectile body, the lower projectile body, the upper projectile body and the fuse is positioned by the conical surfaces, the coaxiality and the connection strength of the projectile body and the fuse are ensured, the outer surface of the formed projectile is integrated, the outer surface of the projectile is basically the same cylindrical size surface, the projectile is of a full-centering structure, surface fluctuation does not exist, and gas turbulence can not be generated on the surface due to surface mutation, so that the influence of the gas turbulence of the outer surface on the precision is eliminated, the length of the cylindrical section of the projectile is equivalently lengthened, and the guiding performance in a chamber is improved.
Preferably, the head of the fuze 1 of the present embodiment is spherical; although the pneumatic resistance is high, disturbance interference in all directions is perpendicular to the spherical surface, and acting force passes through the spherical center on the axis, so that the pneumatic resistance has the characteristic of high anti-interference capability.
Preferably, the lower projectile body 2.1.2 and the propellant charge 3 are tightly combined after interference fit, and the tail of the lower projectile body 2.1.2 is provided with the bottom recess 2.1.3, so that the strength of low-pressure eddy current at the projectile bottom is weakened, and a local vacuum area is filled with air, thereby improving the pressure at the bottom of the projectile, reducing the resistance at the bottom and further increasing the range; furthermore, in this embodiment, a plurality of air holes 2.1.4 penetrating through the lower projectile body 2.1.2 are uniformly distributed on the side wall of the bottom recess 2.1.3, so that external air flow can enter the bottom recess, the air pressure at the bottom of the projectile is increased, bottom resistance is further reduced, the lower extension performance of the trajectory is improved, and the trajectory performance is improved.
Preferably, as shown in fig. 3, the belt 2.1.5 of the present embodiment is provided on the lower projectile body 2.1.2, and the belt enables the projectile to be inserted into the rifling, so as to ensure the projectile to rotate stably.
Preferably, in this embodiment, in order to ensure the strength of the connection structure between the upper projectile body and the lower projectile body and the consistency of the outer wall, the charging cavity of the upper projectile body 2.1.1 is sequentially provided with a large-diameter cavity 2.1.1a, a conical transition cavity 2.1.1b and a small-diameter cavity 2.1.1c from the head to the tail, the large-diameter cavity 2.1.1a is in threaded connection with the fuse 1, and the small-diameter cavity 2.1.1c is in threaded connection with the lower projectile body 2.1.2; the large-diameter cavity and the small-diameter cavity are pre-engraved with wire grooves 2.1.10 which are interwoven into a net shape, so that each grid is in a shuttle shape, namely: the pre-control fragment technology is adopted in the projectile body, so that the consistency of the shape and the quality of fragments is ensured when the projectile body is crushed, and the killing power is improved.
Preferably, as shown in fig. 4, the projectile charge 2.2 of the present embodiment includes a charge column 2.2.1, a booster 2.2.2, an inert spacer 2.2.3 and a liner 2.2.4; the liner 2.2.4, the inert partition 2.2.3 and the booster tube 2.2.2 are sequentially assembled in the inner cavity of the charge column 2.2.1 from top to bottom; the shape of the explosive column 2.2.1 is matched with that of the explosive cavity; the liner 2.2.4 does not extend beyond the conical transition chamber 2.1.1b. The big diameter intracavity in the body of bullet was arranged in to the shaped charge cover of body charge structure of this embodiment, has increased the effective charge volume of warhead, compares in traditional structure, has eliminated the mutability of powder column shaped charge cover end structure, has eliminated the influence to explosive detonation stability. Preferably, the length of the explosive column in the large-diameter cavity is not less than 25mm, so that the effective explosive loading of the warhead is ensured.
Preferably, the inert partition 2.2.3 of this embodiment is annular, and its inner diameter D is smaller than the inner diameter D of the grain 2.2.1. In the embodiment, the inert partition plate is arranged in the projectile charging structure and is placed between the detonation tube and the explosive column, so that the effect of changing the detonation direction of the detonation wave is achieved, the crushing force on the liner is improved, and the power for breaking nails is improved.
Preferably, as shown in fig. 5, the booster 2.2.2 of the present embodiment includes a booster 2.2.2a and a case 2.2.2b, and the booster is filled in the case; specifically, the diameter of the booster of the embodiment is 10mm, and the thickness is 3mm; compared with the traditional booster tube with the thickness of 5mm, the booster explosive layer of the embodiment is thin, the length-diameter ratio is small, the whole structure is short and thick, after detonation, the detonation direction of detonation waves is changed into radial wave transmission, the effect of changing the wave transmission direction of the detonation waves of explosives is achieved, the crushing force on the explosive type cover is enhanced, and the power of cracking armor is improved.
Preferably, the fuze 1 of the embodiment adopts a built-in fuze with 2 sets of ignition mechanisms and self-destruction and self-failure functions, so that the grenade has the self-destruction and self-failure functions.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (9)
1. A high-speed stable small-caliber armor breaking and killing grenade rotates, wherein the grenade is a fixed-setting ammunition consisting of a fuse, a warhead and a propellant charge; the method is characterized in that: the warhead comprises a projectile body and a projectile body charge arranged in the projectile body;
the projectile body consists of an upper projectile body and a lower projectile body, the fuze and the upper projectile body and the lower projectile body are assembled through threads, and the closed parts of the fuze and the upper projectile body and the lower projectile body are matched through conical surfaces;
the diameter of the fuse is equal to that of the upper projectile body, and the head of the fuse is spherical;
the lower projectile body is tightly combined with the propellant charge in an interference fit mode and then tightened, a bottom recess is formed in the tail portion of the lower projectile body, and a plurality of air guide holes penetrating through the lower projectile body are evenly distributed in the side wall of the bottom recess.
2. The high-speed rotation stable small-caliber broken nail killing grenade according to claim 1, characterized in that: the elastic belt is arranged on the lower elastic body.
3. The high-speed rotation stable small-caliber broken nail killing grenade according to claim 1, characterized in that: the charging cavity of the upper projectile body is sequentially provided with a large-diameter cavity, a conical transition cavity and a small-diameter cavity from the head to the tail;
the large-diameter cavity and the small-diameter cavity are pre-engraved with wire grooves interwoven into meshes, so that each mesh is in a shuttle shape.
4. The high-speed rotation stable small-caliber broken nail killing grenade according to claim 3, characterized in that: the bomb charge comprises a charge column, a booster tube, an inert partition plate and a shaped charge cover; the liner, the inert partition plate and the detonating tube are sequentially assembled in the inner cavity of the charge column from top to bottom; the shape of the explosive column is matched with that of the explosive cavity; the liner does not extend beyond the tapered transition cavity.
5. The high-speed rotation stable small-caliber broken nail killing grenade according to claim 4, characterized in that: the length of the grain in the large-diameter cavity is not less than 25mm.
6. The high-speed rotation stable small-caliber broken nail grenade according to claim 4, characterized in that: the inert baffle is annular, and the inner diameter of the inert baffle is smaller than that of the explosive column.
7. The high-speed rotation stable small-caliber broken nail grenade according to claim 4, characterized in that: the booster comprises a booster and a pipe shell, wherein the booster is filled in the pipe shell.
8. The small-caliber broken nail grenade stable in high-speed rotation according to claim 7, characterized in that: the diameter of the booster is 10mm, and the thickness is 3mm.
9. The high speed rotation stable small caliber armour piercing grenade according to any of claims 1 to 8, characterized in that: the fuse adopts a fuse which is internally provided with 2 sets of ignition mechanisms and has self-destruction and self-failure functions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210926390.XA CN115307492A (en) | 2022-08-03 | 2022-08-03 | High-speed rotation stable small-caliber broken nail killing grenade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210926390.XA CN115307492A (en) | 2022-08-03 | 2022-08-03 | High-speed rotation stable small-caliber broken nail killing grenade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115307492A true CN115307492A (en) | 2022-11-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210926390.XA Pending CN115307492A (en) | 2022-08-03 | 2022-08-03 | High-speed rotation stable small-caliber broken nail killing grenade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115307492A (en) |
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2022
- 2022-08-03 CN CN202210926390.XA patent/CN115307492A/en active Pending
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