CN113607003B

CN113607003B - Structure for improving opening reliability of tail wing of smoothbore gun

Info

Publication number: CN113607003B
Application number: CN202110905948.1A
Authority: CN
Inventors: 杜忠华; 王德胜; 徐立志; 温瑞青; 马超; 刘轩
Original assignee: Nanjing University Of Science & Technology Office Of Science And Technology Research Co ltd
Current assignee: Nanjing University Of Science & Technology Office Of Science And Technology Research Co ltd
Priority date: 2021-08-09
Filing date: 2021-08-09
Publication date: 2023-03-28
Anticipated expiration: 2041-08-09
Also published as: CN113607003A

Abstract

The invention relates to a structure for improving the opening reliability of a tail wing of a smoothbore gun, which comprises the tail wing, wherein the tail wing is arranged on a projectile and comprises a tail wing rod, a tail wing piece and a tail wing seat, the tail wing seat is arranged at the other end of the tail wing rod and is uniformly arranged along the circumferential direction of the tail wing rod, the tail wing piece is rotatably arranged in the tail wing seat, the side surface of the tail wing seat is also provided with a beveled surface, when gunpowder gas pushes the projectile to move forwards, the gas thrust acts on the beveled surface uniformly distributed on the tail wing seat to generate a tangential component force Ft to promote the projectile to rotate, the tail wing piece is unfolded under the action of the tangential component force, an annular groove is arranged on the projectile along the circumferential direction of the projectile, and a projectile belt is arranged in the annular groove.

Description

Structure for improving opening reliability of tail wing of smoothbore gun

Technical Field

The invention relates to the field of weapon science and technology, in particular to a structure for improving the opening reliability of a tail wing of a smooth bore gun.

Background

For the flight stability of the smoothbore gun projectile, one of the conditions is that the projectile is endowed with a certain rotating speed, and for the ultra-caliber opening type empennage projectile, the empennage is opened by utilizing the centrifugal force of the rotation of the projectile (as shown in figure 1). Therefore, in order to open the flight by means of a simply constructed centrifugal force of rotation, it is necessary to ensure that the projectile rotates within the chamber.

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 in the initial launching stage, and the specific technical scheme is as follows:

the utility model provides an improve structure that smooth bore big gun fin opened reliability which characterized in that: including the fin, the fin is installed on the shot, the fin is including tail wing pole, tail vane and tail wing seat, the one end of tail wing pole is connected on the shot, tail wing seat is installed at the other end of tail wing pole and is evenly set up along tail wing pole circumferencial direction, tail vane rotates and sets up in tail wing seat, tail wing seat side still is provided with the scarf, and when gunpowder gas promoted the shot and move forward, gas thrust effect produced a tangential component Ft on the scarf of equipartition on tail wing seat, impels the shot to take place rotatoryly, tail vane expandes under the centrifugal force effect of the rotatory production of shot, be provided with the annular groove along its circumferencial direction on the shot, be provided with the band in the annular groove, the band slides the setting in the annular groove.

Further, the chamfer is located on the left or right side of the tail wing seat.

Further, the angle of the chamfer on the tail wing seat is opposite to the rotating direction of the projectile.

Further, still including the tail wing axle, the tail wing seat is including the fixed block, the fixed block is provided with two, the tail wing piece is located between the fixed block, the relative through-hole that is provided with on the fixed block, the tail wing axle passes through-hole and tail wing piece.

Furthermore, a containing groove is formed in the tail wing rod, and when the tail wings are contained, the tail wing plates are contained in the containing groove.

Furthermore, be provided with arc portion on the fin, the shape and the holding tank looks adaptation of arc portion set up.

Further, the elastic belt is a sliding nylon elastic belt.

The invention has the beneficial effects that:

according to the invention, the structure of the inclined plane is added on the tail wing seat, and the sliding nylon bullet belt is matched, so that the bullet can be driven to rotate when moving in the bore, the assembly is simple, the rotating speed of the bullet is increased, and the flying stability and the shooting precision of the bullet are facilitated.

Drawings

FIG. 1 is a perspective view of a structure for improving the opening reliability of a tail wing of a smooth bore gun in an embodiment of the invention;

fig. 2 is a force analysis diagram of the shot in the bore in the embodiment of the invention.

Wherein, 1, pill; 2. a tail fin; 21. a tail wing rod; 22. a tail fin panel; 23. a tail wing seat; 231. a fixed block; 24. a tail shaft; 3. sliding the nylon elastic band; 4. a chamfer plane; 5. a receiving groove.

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.

Examples

With reference to figures 1 to 2 of the drawings,

a structure for improving the opening reliability of a tail wing of a smoothbore gun comprises a tail wing 2, wherein the tail wing 2 is installed on a shot 1, the tail wing 2 comprises a tail wing rod 21, tail wing pieces 22 and a tail wing seat 23, one end of the tail wing rod 21 is connected to the shot 1, the tail wing seat 23 is installed at the other end of the tail wing rod 21 and evenly arranged along the circumferential direction of the tail wing rod 21, the tail wing pieces 22 are rotatably arranged in the tail wing seat 23, oblique planes 4 are further arranged on the side surfaces of the tail wing seat 23, when gunpowder pushes the shot 1 to move forwards, the thrust of the fuel gas acts on the oblique planes 4 evenly distributed on the tail wing seat 23 to generate a tangential component force Ft to promote the shot 1 to rotate, the tail wing pieces 22 are unfolded under the action of centrifugal force generated by the rotation of the shot 1, an annular groove is formed in the shot 1 along the circumferential direction of the shot 1, a shot belt is arranged in the annular groove, and the annular groove is arranged in a sliding mode; the chamfer 4 is positioned on the left side or the right side of the tail wing seat 23; the angle of the chamfer 4 on the tail wing seat 23 is opposite to the rotating direction of the projectile 1.

The principle of the invention is as follows:

in order to provide the rotating speed of the projectile 1 in the bore, the direction of the inclined plane 4 required to be arranged at the position is judged according to the rotating direction of the projectile 1, the angle of the inclined plane 4 of the tail wing seat 23 is opposite to the rotating direction of the projectile 1 because the projectile 1 is subjected to gunpowder gas thrust F from back to front when moving in the bore, when the gunpowder gas pushes the projectile 1 to move forwards, the gas thrust acts on the inclined plane 4 uniformly distributed on the tail wing seat 23 to generate a tangential component force Ft, as shown in figure 2, the component force promotes the projectile 1 to rotate, and the friction force between the sliding nylon projectile band 3 and the projectile body is greatly reduced by matching with the sliding nylon projectile band 3, so that the projectile 1 can rotate under the action of a small tangential force.

The tail wing seats 23 are uniformly distributed on the tail wing rods, each tail wing seat 23 is provided with a tail wing piece 22, the inclined plane 4 is determined to be arranged on the left side or the right side of the tail wing piece 22 according to the rotation direction of the projectile 1, the angle of the inclined plane 4 can be determined according to requirements, the sliding nylon projectile belt 3 is extruded into a barrel, the self-lubricating property is utilized to enable the projectile 1 to rotate in a bore easily when the sliding nylon projectile belt 3 is closed, therefore, the inclined planes 4 of the tail wing seats 23 and the sliding nylon projectile belt 3 are matched for use, the projectile 1 rotates in the bore, a certain rotation speed is given to the projectile 1, meanwhile, the tail wing pieces 22 opened by centrifugal force are mounted on the tail wing rods 21 connected to the rear of the projectile 1, and the flight stability and the shooting precision of the projectile 1 are guaranteed.

The invention has simple structure, can endow the projectile 1 with enough rotating speed, and the smooth bore gun can endow the projectile 1 with certain rotating speed through the inclined plane 4 at the initial starting stage of the projectile 1, so that the tail wing pieces 22 can be rapidly and reliably opened after the projectile exits from the muzzle.

Further, the tail wing shaft 24 is further included, the tail wing seat 23 comprises fixing blocks 231, the two fixing blocks 231 are arranged, the tail wing pieces 22 are located between the fixing blocks 231, through holes are oppositely formed in the fixing blocks 231, and the tail wing shaft 24 penetrates through the through holes to be arranged with the tail wing pieces 22.

In the above structure: the tail wing seat 23 is a groove formed by two fixing blocks 231, one end of the tail wing piece 22 is positioned in the groove and fixed through the tail wing shaft 24, and the tail wing piece 22 can rotate in the groove, so that the tail wing piece can be opened reliably after being subjected to centrifugal force with proper size.

Further, the tail wing rod is provided with a receiving groove 5, and when the tail wing 2 is received, the tail wing panel 22 is received in the receiving groove 5; the tail wing pieces 22 are provided with arc-shaped portions, and the shape of the arc-shaped portions is matched with the accommodating grooves 5.

In the above structure: the storage groove 5 is used for storing the tail tab 22 in the storage state, and the arc-shaped portion of the tail tab 22 is stored in the storage groove 5 when the tail tab is stored.

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 above embodiments, but is within the common general knowledge of those skilled in the art.

Claims

1. A structure for improving the opening reliability of a tail wing of a slide bore gun comprises the tail wing (2), wherein the tail wing (2) is installed on a projectile (1), the tail wing (2) comprises a tail wing rod (21), tail wing pieces (22) and a tail wing seat (23), one end of the tail wing rod (21) is connected to the projectile (1), the tail wing seat (23) is installed at the other end of the tail wing rod (21) and is uniformly arranged along the circumferential direction of the tail wing rod (21), the tail wing pieces (22) are rotatably arranged in the tail wing seat (23), oblique planes (4) are further arranged on the side surface of the tail wing seat (23), when gunpowder gas pushes the projectile (1) to move forwards, gas thrust acts on the oblique planes (4) uniformly arranged on the tail wing seat (23), a tangential component force Ft is generated to promote the projectile (1) to rotate, the tail wing pieces (22) are unfolded under the action of centrifugal force generated by the rotation of the projectile (1), an annular groove is formed in the projectile (1) along the circumferential direction, and an annular groove is arranged in the projectile, and the annular groove belt slides in the projectile;

the oblique cutting plane (4) is positioned on the left side or the right side of the tail wing seat (23);

the angle of the inclined cutting plane (4) on the tail wing seat (23) is opposite to the rotating direction of the projectile (1);

the tail wing seat comprises a tail wing shaft (24), the tail wing seat (23) comprises fixing blocks (231), the fixing blocks (231) are provided with two pieces, the tail wing pieces (22) are positioned between the fixing blocks (231), through holes are oppositely formed in the fixing blocks (231), and the tail wing shaft (24) penetrates through the through holes and the tail wing pieces (22);

the tail wing rod (21) is provided with a containing groove (5), and when the tail wing (2) is contained, the tail wing panel (22) is contained in the containing groove (5);

the tail wing pieces (22) are provided with arc-shaped parts, and the shapes of the arc-shaped parts are matched with the accommodating grooves (5);

the elastic belt is a sliding nylon elastic belt (3).