WO2016148369A1

WO2016148369A1 - Prefabricated warhead

Info

Publication number: WO2016148369A1
Application number: PCT/KR2015/011686
Authority: WO
Inventors: 김준규; 김형세
Original assignee: 주식회사 두레텍
Priority date: 2015-03-13
Filing date: 2015-11-03
Publication date: 2016-09-22
Also published as: KR101568319B1

Abstract

The present invention relates to a prefabricated warhead comprising: a front assembly (10) having a streamlined front end part (11), and a fitting part (12) integrally formed at the rear end of the front end part (11); and a rear fixing body (20) positioned at the rear of the front assembly (10) and having a fitting part accommodating groove (22), which is formed therein, and into which the fitting part (12) is inserted, and can manufacture the warheads at low cost and can also increase an accuracy rate and an effective range since the warhead is manufactured in a prefabricated form.

Description

Prefab warhead

The present invention relates to an assembled warhead, and more particularly, to an assembled warhead that is economical, easy to manufacture, and has improved accuracy by manufacturing the warhead in an assembly type in a warhead used for a steel wire gun.

Bullets and shells fired from projectiles, such as rifles or cannons, consist of gunpowder that generates firing energy by explosion and warheads that fly into target by firing energy. It is produced by forging or the like, and then produced by injecting a molten metal such as lead into the inside of the carbon shell by using a nozzle or the like.

As described above, in the case of manufacturing a warhead by injecting a molten metal into the inside of the tanzapi, a large cost is required to manufacture a nozzle for injecting molten metal and a control device for finely and precisely controlling the molten state. In addition, as the lead injected into the charcoal coagulates, the coagulation can not be coagulated so as to have a uniform density. As a result, the center of gravity of the warhead is disturbed to form an impact group. By injecting lead, etc., which has a higher specific gravity than blood, the center of gravity of the warhead is moved to the rear side, which causes a problem in that the precession of the warhead is increased, thereby decreasing the accuracy (hit ratio) of the warhead.

On the other hand, when manufacturing warheads of armor shells used to penetrate armor such as tanks or armored vehicles, copper tannery shells are coated on the outer circumferential surface of the shells made of a hard metal such as tungsten or tungsten alloy. In the direction, a space is formed between the tanshin and the tanzapi. When the warhead strikes the target, the tanzapi of the copper material is opened by the impact force, and the tanshin which is located inside the outside of the warhead penetrates the armor of the tank and the like. As such, when a space is formed between the bulletin and the bullet casing, the warhead receives a compressive force while passing through the barrel or the barrel, and the original shape of the bullet shell is not maintained as it is, but slightly deformed, thereby degrading accuracy. have.

In order to prevent the deformation of the tanzapi at the time of launch, the tanzapi is made of stainless steel, but in this case, the deformation of the tanzapi is reduced, but more energy is consumed to open the tanzapi. As the flight energy of the air is reduced, another problem occurs that eventually penetrates the armor of the armor to the armor.

Therefore, development of warheads that are simple to manufacture and have improved accuracy is required.

The present invention has been made to solve the problems of the conventional warhead as described above, it can be manufactured at a low cost, to increase the accuracy and to provide an assembled warhead that can extend the effective range. There is this.

An object of the present invention as described above is a front-end assembly having an assembled warhead, a streamlined front end, and a fitting formed integrally with the rear end of the front end; It is achieved by configuring a rear fixing body which is formed at the rear of the front assembly and has a fitting portion receiving groove into which the fitting portion is inserted.

And in the present invention, the connecting portion and the extension rod is formed in the rear of the fitting portion of the front assembly in turn, the connecting portion receiving groove and the extension rod receiving groove through which the connecting portion and the extension rod are inserted in the rear of the fitting portion receiving groove of the rear fixing body It is characterized by.

In addition, the present invention is an extension rod is formed in the rear of the fitting portion of the front assembly, the extension rod receiving groove is formed in the rear of the fitting portion receiving groove of the rear fixing body is formed, the outer circumferential surface of the extension rod and the extension rod receiving The inner circumferential surface of the groove is characterized in that the extension rod and the extension rod accommodating groove are screwed to each other by forming threads.

Furthermore, the present invention is that the fitting portion receiving groove for receiving the fitting portion and the fitting portion is each made of a tapered shape, an extension rod receiving groove is formed in the rear of the fitting portion receiving groove of the rear fixing body is inserted into the extension rod It is done.

In addition, the present invention is characterized in that the inner circumferential surface of the extension rod receiving groove is a plurality of engaging pieces protruding at a predetermined interval along the circumferential direction.

And the present invention is that the fitting portion has a tapered shape and the outer circumferential surface is chamfered to form a cross-section of the polygonal shape, the fitting portion receiving groove also has a tapered shape to accommodate the fitting portion while being chamfered to form a cross-section of the polygonal shape It is done.

In another aspect, the present invention is characterized in that the bubbling groove is formed in the tip center portion of the tip portion, the helical groove is formed on the outer peripheral surface of the tip portion.

According to the present invention, since the warhead can be manufactured by simply assembling the front assembly and the rear fixator, the manufacturability can be improved and the variety of the coal type can be improved.

In addition, since the present invention can freely select the type and specific gravity of the metal constituting the front assembly, it is possible to manufacture a warhead suitable for various types of projectiles according to the purpose of using the warhead, and to adjust the specific gravity of the front assembly, the yaw angle of the warhead Because of this, flight stability and accuracy are improved.

1 is a perspective view of the assembled warhead according to the invention,

Figure 2 (a, b, c) is a perspective view showing an example of the front assembly according to the present invention,

Figure 3 (a, b, c) is a cross-sectional view showing an example of the rear fixing body according to the present invention,

4 is a perspective view showing an example of a rear fastener according to the present invention;

Figure 5 (a, b, c) is an exploded perspective view showing an example in which the front assembly is assembled to the rear fixture according to the invention,

Figure 6 is a view showing the relationship of the force received when the prefab warhead according to the invention flying.

10: Front assembly 11: Tip portion

11A: Bubbling Groove 12: Fitting

13: connection 14: extension rod

20: rear fixing body 22: fitting receiving groove

23: connecting portion receiving groove 24: extension rod receiving groove

24A: Joining piece 25: Air guide groove

H: fastener

Hereinafter, with reference to the accompanying drawings showing a preferred embodiment will be described in more detail the configuration and operation of the present invention.

The present invention relates to an assembled warhead that is inserted into a projectile having a barrel or barrel and is fired. The warhead of the present invention is composed of a front assembly 10 and a rear fixation body 20 as shown in FIG.

The front assembly 10 is located at the front of the warhead, the rear end is assembled and fixed to the front of the rear fixture 20, which will be described later, wherein the front assembly 10 has a relatively specific gravity compared to the rear fixture 20 It is made of a high metal, wherein the front assembly 10 has three shapes as shown in Figure 2 (a), (b), (c), respectively.

And the rear side of the warhead metal rear fixing body 20 is assembled with the front fixing body 10, wherein the shape of the rear fixing body 20 is shown in Figures 3 (a), (b), (c), respectively As shown is formed in accordance with the shape of the front fixing body 10 is assembled in front of it.

The warhead of the present invention has a structure in which three pairs of the front fixing body 10 and the rear fixing body 20 having different shapes as described above are assembled with each other, wherein the shape of the rear fixing body 20 is the front assembly Since it is determined by the shape of the following, the three shapes of the front fixture 10 will be described as one embodiment each.

Embodiment 1 relates to the front assembly 10 of the structure in which the front assembly 10 has a multi-stage structure, as shown in Figure 2 (a), wherein the interior of the rear fixing body 20 (3) As shown in the figure, a multistage groove is formed so that the multi-stage front assembly 10 can be assembled in front of it.

The front assembly 10 of the first embodiment has a streamlined front end portion 11 formed at the front side, as shown in Figure 2 (a), the rear end of the front end portion 11 is fitted while integrally with the front end portion (11). The part 12, the connecting part 13, and the extension rod 14 are formed in this order. At this time, the fitting part 12, the connecting part 13, and the extension rod 14 are formed in multiple stages of the leading end part 11. The diameter gradually decreases.

In addition, a bubbling groove 11A having a predetermined depth is formed at the tip center portion of the streamlined tip portion 11, and the bubbling groove 11A is bubbling when the warhead rotates while encountering a dense medium such as the surface of the water. It is intended to reduce the resistance by inducing the occurrence to proceed along the helical thread.

At the rear of the tip portion 11, a fitting portion 12 smaller than the diameter of the rear end portion of the tip portion 11 is formed so that a stepped jaw is formed, and the stepped jaw is inserted into a groove formed in the rear fixing body 20 by the front assembly 10. It acts as a stopper when assembled. And the fitting portion 12 is made in a tapered shape with a smaller diameter toward the rear, the outer peripheral surface of the tapered fitting portion 12 is chamfered to have a constant width along the circumferential direction and as a result the fitting portion 12 Has a polygonal cross section.

A connecting portion 13 and an extension rod 14 are formed at the rear of the fitting portion 12 of the front assembly 10, wherein the extension rod 14 is formed to extend by a predetermined length along the centerline of the warhead. When the front assembly 10 is inserted along the centerline of the rear fixture 20, the extension rod 14 passes through the rear end of the rear fixture 20. And a fixing hole (H) is formed at the end of the extension rod (14), the fixing hole (H) is the end of the extension rod 14 in the state of assembling the front assembly (1) and the rear fixing body (20) When it is pressed by the press to the side and functions as a fixing means, so that the combination of the front assembly 10 and the rear fixing body 20 is made more firm.

At the rear of the front assembly 10 having the structure as described above, as shown in Figure 3 (a) is assembled a rear fixing body 20 having a cylindrical shape, in this case the front assembly inside the rear fixing body 20 Tapered shaped fitting portion 12, circular connecting portion 13 and extension rods 13 formed in the fitting portion receiving groove 22, the connecting portion receiving groove 23 and the extension so as to be assembled, respectively The rod accommodating groove 24 is formed through a plurality of stages, and the inner circumferential surface of the fitting accommodating groove 22 is also chamfered to accommodate the fitting portion 12 having a polygonal cross section and has a polygonal shape.

In addition, at the rear end of the rear fixture 20, when the warhead is flying, the air flow is uniformly guided toward the center of the anthracite to prevent the warpage of the warhead to ensure stable flight and to form a turbulence, thereby reducing the flight resistance The plurality of air guide grooves 25 are formed in the same shape.

And a projection (not shown) is installed in the approximately middle portion in the longitudinal direction of the rear fixing body 20, this projection is a steel wire formed inside the barrel, such as when the warhead passes through the barrel or barrel by the explosive force of the gunpowder. By contacting and deforming to fit, the warhead is given a rotational force.

When assembling the front assembly 10 having the structure as described above to the rear fixing body 20, as shown in Figure 5 (a), the fitting portion 12, the connecting portion 13 and the first formed in the front assembly 10 When the extension rod 14 is fitted into the fitting portion receiving groove 22, the connection portion receiving groove 23 and the extension rod receiving groove 24 formed inside the rear fixing body 20, respectively, the front assembly 10 is rearward. Rotating is prevented by a plurality of surfaces formed in the fitting portion 12 and the fitting receiving groove 22 while being coupled to the fixed body 20, and then formed at the end of the extension rod 14 by using a press or a tool. When hitting and pressing the fixing hole (H) is the side of the fixing hole (H) is opened while being in close contact with the rear end of the rear fixing body 20, the front assembly 10 and the rear fixing body 20 is firmly coupled.

Although the above-described tip 11 is formed on the basis of a streamlined shape, as shown in FIGS. 2 (b) and 2 (c), a helical groove is formed on the outer circumferential surface of the tip 11 formed of the streamlined shape. It may be.

Embodiment 2 relates to the front assembly 10 of the structure in which the front assembly 10 has a multi-stage configuration as in Example 1, as shown in Figure 2 (b), wherein the inside of the rear fixing body 20 As shown in Figure 3 (b) is a multi-stage groove is formed so that the multi-stage front assembly 10 can be assembled in front of it.

As shown in FIG. 2 (b), the front assembly 10 of the second embodiment has a streamlined front end portion 11 formed at the front side of the warhead, and is integrated with the front end portion 11 at the rear end of the front end portion 11. While forming the fitting portion 12 and the extension rod 14 are formed in sequence.

In addition, a helical groove is formed on the outer circumferential surface of the front end portion 11 having a streamline shape, and the helical groove is formed when the warhead leaving the projectile rotates in the air or underwater while rotating. By allowing air to flow along these grooves, it reduces flight resistance and makes it easier to dig into the interior of the target when the warhead reaches the target or underwater.

In addition, a bubbling groove 11A having a predetermined depth is formed at the tip center portion of the tip portion 11 as in Embodiment 1, wherein the bubbling groove 11A is formed in connection with a helical shape groove formed in the tip portion 11. The warhead's flight speed is increased while the warhead's target or underwater penetration effect is further enhanced.

In addition, the rear end portion 11 is formed with a fitting portion 12 and an extension rod 14 having a diameter smaller than the diameter of the rear end portion 11 in order to form a stepped step, the stepped front assembly 10 is the rear It functions as a stopper when inserted into a groove formed in the stagnation 20 and assembled. Further, a thread is formed on the outer circumferential surface of the rear side of the extension rod 14.

A rear fixing body 20 having a cylindrical shape is assembled at the rear of the front assembly 10 having the structure as described above, and the fitting portion 12 formed at the front assembly 10 is formed inside the rear fixing body 20. And the fitting portion receiving groove 22 and the extending rod receiving groove 24 are formed through the extension rod 14 so that the extension rod 14 can be assembled thereon, and the extension rod 14 on the inner circumferential surface of the rear side of the extension rod receiving groove 24. Thread is formed to be screwed with the thread formed on the outer peripheral surface of the).

In addition, a plurality of air induction grooves 25 are formed at the rear end of the rear fixing body 20 in the same shape as in the first embodiment, and protrusions (not shown) in the substantially middle portion of the rear fixing body 20 in the longitudinal direction. ) Is installed.

When assembling the front assembly 10 having the structure as described above to the rear fixing body 20 (b) as shown in Figure 5 (b) the fitting portion 12 and the extension rod 14 formed in the front assembly 10 Screw and extension rod receiving groove 24 formed on the outer circumferential surface of the extension rod 14 when inserted into the fitting portion receiving groove 22 and the extension rod receiving groove 24 formed in the rear fixing body 20, respectively, and rotated The front assembly 10 and the rear fixing body 20 are firmly assembled while the screws formed on each other are fastened to each other.

The direction of formation of the thread formed on the rear end of the extension rod 13 and the thread formed on the inner circumferential surface of the extension rod receiving groove 23 is formed in the same direction as the direction of formation of the steel wire formed on the inner circumferential surface of the barrel or barrel, and thus the warhead by the steel wire. Even if the rotation of the screw coupling between them is not released, but rather has an effect of locking (locking).

Embodiment 3 is a tapered-shaped fitting portion 12 at the rear end of the front end portion 11 of the second embodiment, as shown in Figure 2 (c) and the extension rod 14 made of a cylindrical shape in the fitting portion 12 The front assembly 10 of the structure is formed integrally extending, the interior of the rear fixing body 20 coupled to the front assembly 10, the front assembly 10 as shown in Figure 3 (c) Grooves are formed to be assembled at the front.

In addition, a helical groove is formed on the outer circumferential surface of the front end portion 11 formed in a streamline shape as shown in FIG.

In addition, as in the first and second embodiments, bubbling grooves 11A having a predetermined depth are formed at the tip central portion of the tip portion 11, and the bubbling grooves 11A are formed in connection with a helical groove formed in the tip portion 11. .

In addition, the fitting portion 12 is formed in a tapered shape whose diameter gradually decreases toward the rear side, and the cylindrical extension rod 14 is integrally formed with the fitting portion 12 at the rear of the tapered fitting portion 12. Is formed extending.

A rear fixing body 20 having a cylindrical shape is coupled to the rear of the front assembly 10, and in this case, the tapered fitting portion 12 and the extension rod formed in the front assembly 10 are inside the rear fixing body 20. Tapered fitting portion receiving grooves 22 and cylindrical extension rod receiving grooves 24 are formed so that the 14 can be inserted and assembled.

In addition, the inner peripheral surface of the extension rod receiving groove 24 has a plurality of engaging pieces 24A having a shape in which the thickness thereof becomes thicker toward the rear at a predetermined interval along the circumferential direction, preferably three engaging pieces 24A protrude. Is formed.

When assembling the front assembly 10 having the structure as described above to the rear fixing body 20, as shown in Fig. 5 (c), the fitting portion 12 and the extension rod 13 formed in the front assembly 10 first Press the fitting portion receiving groove 22 and the extension rod receiving groove 24 formed inside the rear fixing body 20 while the fitting portion 12 is seated in the fitting portion receiving groove 22 and naturally forward. The central axis of the assembly and the rear fixing body is coincident with the extension rod 13 while the outer circumferential surface of the extension rod 13 compresses the plurality of engaging pieces 24A protruding from the inner circumferential surface of the extension rod receiving groove 24. And extension rod receiving groove 24 is assembled, so that the coupling between the front assembly 10 and the rear fixing body 20 is firmly maintained.

6 is a view showing the relationship between the force received when the warhead is flying in the present invention because the front assembly is made of a metal having a higher specific gravity than the rear fixation body in the center of gravity (CG1) compared to the conventional warhead front of the warhead As it moves toward (CG2), the distance between the center of pressure (CP) and center of gravity (CG2) decreases, thereby reducing the size of the yaw angle (CA) that causes the precession and reducing the warpage of the warhead, while reducing the resistance. As a result, flight stability is improved, along with increased torque and thrust, resulting in higher breakout force and accuracy (accuracy).

As described above, the present invention can manufacture the warhead at a lower cost than the conventional one by manufacturing the warhead in an assembly type, and further improve the hit ratio and the effective range.

Claims

A front assembly (10) having a streamlined tip portion (11) and a fitting portion (12) integrally formed at the rear end of the tip portion (11);

Being located in the rear of the front assembly 10 is made of a rear fixing body 20 is formed with a fitting portion receiving groove 22 is inserted into the fitting portion 12 therein,

Bubbling groove (11A) is formed in the center portion of the tip end portion of the tip portion (11), Helical groove is formed on the outer peripheral surface of the tip portion (11).
The method according to claim 1,

A connecting portion 13 and an extension rod 14 are sequentially formed at the rear of the fitting portion 12 of the front assembly 10, and at the rear of the fitting portion receiving groove 22 of the rear fixing body 20. Assembled warhead, characterized in that the connecting portion receiving groove 23 and the extension rod receiving groove 24 through which the 13 and the extension rod 13 are inserted, respectively.
The method according to claim 1,

An extension rod 14 is formed at the rear of the fitting portion 12 of the front assembly 10, and the extension rod 14 is inserted at the rear of the fitting portion receiving groove 22 of the rear fixing body 20. An extension rod receiving groove 24 is formed, and threads are formed on the outer circumferential surface of the extension rod 14 and the inner circumferential surface of the extension rod accommodation groove 24, respectively, so that the extension rod 14 and the extension rod accommodation groove ( 24) prefab warhead, characterized in that the screwed.
The method according to claim 2,

The fitting portion receiving groove 22 for accommodating the fitting portion 12 and the fitting portion 12 is formed in a tapered shape, respectively, at the rear of the fitting portion receiving groove 22 of the rear fixing body 20. Assembly type warhead, characterized in that the extension rod receiving groove 24 is inserted into which the extension rod 14 is inserted.
The method according to claim 4,

Assembled warhead, characterized in that the inner circumferential surface of the extension rod receiving groove 24 is formed with a plurality of engaging pieces (A) protruding at a predetermined interval along the circumferential direction.
The method according to claim 1 or 2,

The fitting portion 12 has a tapered shape and an outer circumferential surface thereof is chamfered to form a cross section of a polygonal shape, and the fitting portion receiving groove 22 also has a tapered shape so as to accommodate the fitting portion 12. Prefabricated warhead characterized in that it is chamfered to form a cross section of.