阅读说明：本技术 一种提高滑膛炮弹丸转速的结构 (Structure for improving revolving speed of smooth-bore gun projectile ) 是由 杜忠华 王德胜 徐立志 温瑞青 马超 刘轩 于 2021-08-09 设计创作，主要内容包括：本发明涉及一种提高滑膛炮弹丸转速的结构,包括有风帽,所述风帽螺纹安装在壳体的一端,所述壳体的另一端安装有尾翼,所述风帽包括有一体化设置的杆体和帽体,所述帽体包括有固定部和安装部,所述固定部为圆柱状,所述安装部连接在固定部的下端面上,所述安装部安装在壳体上,所述固定部的上端面为迎风面,所述杆体连接在迎风面上,所述固定部上设置有贯穿迎风面和固定部侧面的斜切孔,所述斜切空沿迎风面圆周依次设置,本发明通过对弹丸的风帽进行结构创新,利用与弹丸飞行方向相反的高速气流,有效提高了弹丸的转速。(The invention relates to a structure for improving the rotating speed of a projectile of a smoothbore gun, which comprises a hood, wherein the hood is installed at one end of a shell in a threaded manner, the other end of the shell is provided with a tail wing, the hood comprises a rod body and a cap body which are integrally arranged, the cap body comprises a fixing part and an installation part, the fixing part is cylindrical, the installation part is connected to the lower end face of the fixing part, the installation part is installed on the shell, the upper end face of the fixing part is a windward face, the rod body is connected to the windward face, the fixing part is provided with a bevel hole penetrating through the windward face and the side face of the fixing part, and the bevel holes are sequentially arranged along the circumference of the windward face.)

1. The utility model provides an improve structure of smooth bore big gun shot rotational speed, including the hood, the one end at casing (4) is installed to the hood screw thread, fin (5), its characterized in that are installed to the other end of casing (4): the hood is including the body of rod (1) and the cap body (2) that the integration set up, the cap body (2) is including fixed part (21) and installation department (22), fixed part (21) are cylindricly, install department (22) are connected on the lower terminal surface of fixed part (21), install department (22) are installed on casing (4), the up end of fixed part (21) is windward side (211), the body of rod (1) is connected on windward side (211), be provided with the chamfer hole that runs through windward side (211) and fixed part side (23) on fixed part (21), the chamfer is empty to set gradually along windward side (211) circumference.

2. The structure for increasing the revolving speed of a smooth-bore gun projectile according to claim 1, wherein: the aperture or the width of the oblique cutting hole is not less than 2mm, and the included angle formed between the oblique cutting hole and the axis of the projectile ranges from 0 degree to 90 degrees.

3. The structure for increasing the rotating speed of the smoothbore projectile of claim 2, wherein: the oblique cutting hole is arranged on the fixing part (21) along the clockwise direction.

4. The structure for increasing the rotating speed of a smoothbore gun projectile according to claim 3, wherein: the oblique cutting holes are uniformly arranged on the windward side (211) and the side surface (23) of the fixing part in even number.

5. The structure for increasing the rotating speed of the smoothbore projectile of claim 4, wherein: the oblique cutting hole is an oblique groove (3) penetrating through the windward side (211) and the side surface (23) of the fixing part.

6. The structure for increasing the rotating speed of a smoothbore gun projectile according to claim 5, wherein: the oblique holes are oblique holes (6) penetrating through the windward side (211) and the side surface (23) of the fixing part.

7. The structure for increasing the rotating speed of the smoothbore projectile of claim 6, wherein: the windward side (211) is provided with a first through hole, the side face (23) of the fixing portion is provided with a second through hole, and the first through hole and the second through hole are communicated to form an inclined hole (6).

8. The structure for increasing the rotating speed of a smoothbore gun projectile according to claim 7, wherein: be provided with the helicitic texture on installation department (22), installation department (22) threaded connection is on casing (4).

9. The structure for increasing the rotating speed of a smoothbore gun projectile of claim 8, wherein: the rod body (1) is located in the middle of the windward side (211).

Technical Field

The invention relates to the field of weapon science and technology, in particular to a structure for improving the rotating speed of a smooth-bore gun projectile.

Background

As for the flight stability mode of the ammunition of the smooth-bore gun, the flight stability of the ammunition is ensured by the stable mode of the tail wing or the stable mode of the tail wing plus rotation. The stable mode of the empennage and rotation is more widely applied, and the main characteristic is that the empennage is provided with the compound oblique section, and the bullet rotates by using the windward resistance when flying, thereby ensuring the flying stability of the bullet in the flying process and improving the shooting precision. With the fin stabilizing structure, the fin must be of a strength and limited ability to impart spin to the projectile.

Disclosure of Invention

In order to solve the problems in the prior art, the invention provides a structure for improving the rotating speed of a smooth-bore gun projectile, and the specific technical scheme is as follows:

the utility model provides an improve structure of smooth bore big gun shot rotational speed, including the hood, the one end at the casing is installed to the hood screw thread, the fin, its characterized in that are installed to the other end of casing: the hood is including the body of rod and the cap body that the integration set up, the cap body is including fixed part and installation department, the fixed part is cylindricly, the installation department is connected on the lower terminal surface of fixed part, the installation department is installed on the casing, the up end of fixed part is the windward side, the body of rod is connected on the windward side, be provided with the oblique cutting hole that runs through windward side and fixed part side on the fixed part, oblique cutting is empty to set gradually along the windward side circumference.

Furthermore, the aperture or the width of the oblique cutting hole is not less than 2mm, and the included angle formed between the oblique cutting hole and the axis of the shot ranges from 0 degree to 90 degrees.

Further, the chamfered hole is provided in a clockwise direction on the fixing portion.

Further, the oblique cutting holes are uniformly arranged on the windward side and the side face of the fixing part in an even number.

Furthermore, the oblique cutting hole is an oblique groove penetrating through the windward side and the side face of the fixing part.

Furthermore, the oblique holes are oblique holes penetrating through the windward side and the side face of the fixing portion.

Furthermore, a first through hole is formed in the windward side, a second through hole is formed in the side face of the fixing portion, and the first through hole and the second through hole are communicated to form an inclined hole.

Further, be provided with the helicitic texture on the installation department, installation department threaded connection is on the casing.

Further, the rod body is located at the middle position of the windward side.

The invention has the beneficial effects that:

according to the invention, the inclined hole or the inclined groove is processed on the windward side of the hood, so that the shot rotates by utilizing the tangential component force generated on the inclined hole or the inclined surface by windward resistance in the process of flying the shot, the rotating speed of the shot is improved, and the flying stability and the shooting precision of the shot are facilitated.

Drawings

FIG. 1 is a schematic structural diagram of a blast cap of a structure for increasing the rotating speed of a smooth bore gun projectile in the embodiment of the invention;

FIG. 2 is a diagram illustrating an inclined hole structure for increasing the rotational speed of a smooth bore shell in an embodiment of the present invention;

FIG. 3 is a force analysis diagram of a slanted hole in an embodiment of the present invention;

FIG. 4 is a force analysis diagram of the slanted slot in the embodiment of the present invention.

Wherein, 1, a rod body; 2. a cap body; 21. a fixed part; 211. the windward side; 22. an installation part; 23. a side surface of the fixing part; 3. a slanting groove; 4. a housing; 5. a tail wing; 6. and (5) obliquely arranging the holes.

The specific implementation mode is as follows:

for the purpose of promoting an understanding of the invention, reference will now be made in detail to the embodiments of the invention illustrated in the accompanying drawings.

It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention.

Example 1:

with reference to figures 2 and 3 of the drawings,

the utility model provides an improve structure of smooth-bore big gun shot rotational speed, including the hood, the one end at casing 4 is installed to the hood screw thread, fin 5 is installed to the other end of casing 4, the hood is including the body of rod 1 and the cap body 2 that the integration set up, cap body 2 is including fixed part 21 and installation department 22, fixed part 21 is cylindric, installation department 22 is connected on the lower terminal surface of fixed part 21, installation department 22 installs on casing 4, the up end of fixed part 21 is windward side 211, the body of rod 1 is connected on windward side 211, be provided with the oblique cut hole that runs through windward side 211 and fixed part side 23 on the fixed part 21, oblique cut is empty to set gradually along windward side 211 circumference.

The aperture or the width of the oblique cutting hole is not less than 2mm, and the included angle formed between the oblique cutting hole and the axis of the projectile ranges from 0 degree to 90 degrees; the oblique cutting holes are arranged on the fixing part 21 along the clockwise direction; the oblique holes are uniformly arranged on the windward side 211 and the fixing part side surface 23 in even number.

The oblique holes are oblique holes 6 penetrating through the windward side 211 and the side surface 23 of the fixing part; the windward side 211 is provided with a first through hole, the side surface 23 of the fixing part is provided with a second through hole, and the first through hole and the second through hole are communicated to form an inclined hole 6.

In the above structure: in order to improve the rotating speed of the shot after the shot goes out of the muzzle, the windward surface 211 of the hood is provided with uniformly distributed inclined holes 6, the aperture of each inclined hole 6 is not less than 2mm generally, the included angle formed between each inclined hole 6 and the axis of the shot is 0-90 degrees, preferably, even numbers of inclined holes are uniformly distributed on the circumference of the hood, the number and the inclined angle of the inclined holes 6 can be determined according to the practical application condition, the windward resistance F of the shot in flight is utilized to generate a tangential component force Ft on the inclined cut holes to push the shot to rotate, and the flying rotating speed of the shot is improved under the continuous action of the component force in the process of the shot in flight.

After the projectile exits from the muzzle, a tangential component force is generated to rotate the projectile when the projectile passes through the inclined hole 6 processed on the hood by utilizing high-speed airflow opposite to the flight direction of the projectile. Under the combined action of the structure that the oblique-cutting-plane structure of the tail wing 5 is matched with the sliding nylon bullet belt and the inclined hole 6 of the wind cap, the rotating speed of the bullet is improved, and the flying stability and the shooting precision of the bullet are ensured.

Be provided with helicitic texture on the installation department 22, installation department 22 threaded connection is on casing 4, and helicitic texture is convenient for installation department 22 threaded connection is on casing 4, realizes the fixed connection of hood and casing 4.

Example 2:

see fig. 1 and 4

The oblique cutting hole is an oblique groove 3 penetrating through the windward side 211 and the side surface 23 of the fixing part.

In the above structure: in order to improve the rotating speed of the shot after the shot goes out of the muzzle, the windward surface 211 of the hood is provided with uniformly distributed inclined grooves 3, the width of the inclined grooves 3 is not less than 2mm generally, the included angle formed between the inclined grooves 3 and the axis of the shot is 0-90 degrees, preferably, even numbers of the inclined grooves 3 are uniformly distributed on the circumference of the hood, the number and the inclined angle of the inclined grooves 3 can be determined according to the practical application condition, the windward resistance F of the shot in flight is utilized to generate a tangential component force Ft on an inclined cutting hole to push the shot to rotate, and the flying rotating speed of the shot is improved under the continuous action of the component force in the process of the shot in flight.

After the projectile exits from the muzzle, a tangential component force is generated to rotate the projectile when the projectile passes through the inclined groove 3 processed on the hood by utilizing high-speed airflow opposite to the flight direction of the projectile. Under the combined action of the structure of the tail fin 5 seat inclined plane structure matched with the sliding nylon bullet belt and the wind cap inclined groove 3, the rotating speed of the bullet is improved, and the flying stability and the shooting precision of the bullet are ensured.

The technical means disclosed by the scheme of the invention are not limited to the technical means disclosed by the technical means, and also comprise the technical scheme formed by equivalent replacement of the technical features. The present invention is not limited to the details given herein, but is within the ordinary knowledge of those skilled in the art.