JP2021071245A - warhead - Google Patents

Abstract

To allow a selection of a piece shape of a warhead after fracture of a bullet shell after manufacturing of the warhead.SOLUTION: A warhead (10) having a bullet shell (11), a main explosive charge (16) filled inside of the bullet shell (11) and a first detonation device (17) for detonating the main explosive charge (16) is provided with: a shaped charge line (12) having a metallic long storage body (13) with a V-shaped groove (13a) formed on the surface and an explosive charge (14) for the detonation line stored in the storage body (13), and arranged inside of the bullet shell (11) in the state in which the V-shaped groove (13a) faces an inside surface of the bullet shell (11); and a second detonation device (18) capable of detonating the explosive charge (14) for the detonation line of the shaped charge line (12) before the detonation of the main explosive charge (16) by the first detonation device (17).SELECTED DRAWING: Figure 1

Description

The present disclosure relates to a warhead with a shell and an explosive charge filled inside the shell.

Patent Document 1 discloses a warhead including a bullet shell and an explosive charge filled inside the bullet shell. In this warhead, a groove is formed in the shell so that the shell breaks in the groove due to the impact pressure of the detonation of the explosive charge.

Japanese Unexamined Patent Publication No. 2013-231589

By the way, there is a demand to select the shape of the fragment after the warhead is broken, such as immediately before the detonation of the warhead, after the warhead is manufactured, according to the target of the warhead. However, in Patent Document 1, since the shape of the fragments after breaking of the shell is determined according to the arrangement of the grooves of the shell, the shape of the fragments cannot be selected after the warhead is manufactured.

An object of the present disclosure is to make it possible to select the debris shape after breaking of the shell after the warhead is manufactured.

In the first aspect, the shell (11), the main explosive charge (16) filled inside the shell (11), and the first detonation means (17) for detonating the main explosive charge (16) are used. A long metal housing (13) having a V-groove (13a) formed on its surface, and an explosive wire explosive (14) housed in the housing (13). A shaped charge wire (12) arranged inside the shell (11) with the V-groove (13a) facing the inner surface of the shell (11), and a shaped charge wire (12). The explosive line explosive (14) of 12) is provided with a second detonation means (18) capable of detonating the main explosive (16) by the first detonation means (17) before detonation. It is characterized by.

In the first aspect, when the explosive wire explosive (14) is detonated by the second detonation means (18) before the main explosive (16) is detonated by the first detonation means (17), the shaped charge wire (12) is detonated. V-groove (13a) protrudes outward to form a notch (N) on the inner surface of the shell (11). Therefore, when the main explosive charge (16) is subsequently detonated by the first detonation means (17), stress is concentrated around the notch (N) of the shell (11), so that the shell (11) becomes the notch (N). Is easy to break with.

On the other hand, when the first detonation means (17) is detonated with the main explosive (16) while the second detonation means (18) is not detonated with the explosive line explosive (14), the shell (11) is used. Since the main explosive (16) is detonated in the state where the notch (N) as described above is not formed, the shape is different from the case where the main explosive (16) is detonated after the detonation of the explosive line explosive (14). The shell (11) can be broken into fragments.

In this way, before the detonation of the main explosive (16) by the first detonation means (17), the detonation of the explosive line explosive (14) by the second detonation means (18) may or may not be performed. Since the shape of the fragments after the shell (11) is broken is different, the explosive line explosive (14) by the second detonation means (18) is before the detonation of the main explosive (16) by the first detonation means (17). ) Can be detonated, or the shape of the fragment after the shell (11) is broken can be selected.

In the second aspect, in the first aspect, the shell (11) has a cylindrical main body (11a), and the shaped charge wire (12) is spirally wound. It is characterized in that it is arranged at the outer peripheral end portion of the main body portion (11a).

In the second aspect, since the shaped charge wire (12) extends in the circumferential direction of the main body (11a) inside the main body (11a) of the shell (11), it is used for the explosive wire by the second detonation means (18). By detonating the main explosive (16) with the first detonation means (17) in the state after the explosive (14) is detonated, the main body (11a) of the shell (11) can be broken at the intended position in the axial direction. ..

In the third aspect, in the first or second aspect, a plurality of the shaped charge wires (12) are provided, and the second detonation means (18) is provided for each of the shaped charge wires (12). It is characterized by that.

In the third aspect, of the plurality of second detonation means (18), whether all the second detonation means (18) are to be detonated or some of the second detonation means (18) are to be detonated. Allows you to select the shape and size of the debris after breaking of the shell (11).

A fourth aspect is that, in any one of the first to third aspects, a cushioning material (15) is interposed between the main explosive charge (16) and the shaped charge wire (12). It is a feature.

In the fourth aspect, since the cushioning material (15) is interposed between the main explosive (16) and the shaped charge wire (12), the explosive wire explosive (14) of the shaped charge wire (12) Explosion does not trigger the explosion of the main charge (16).

FIG. 1 is a schematic cross-sectional view of the warhead according to the first embodiment. FIG. 2 is an outline view of a missile equipped with a warhead according to the first embodiment. FIG. 3 is an enlargement of Part III of FIG. FIG. 4 is a perspective view of the shaped charge line. FIG. 5 is a flowchart illustrating the processing operation of the detonation controller. FIG. 6 is a view corresponding to FIG. 1 of the second embodiment. FIG. 7 is a view corresponding to FIG. 5 of the second embodiment.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. It should be noted that the embodiments and modifications described below are essentially preferred examples and are not intended to limit the scope of the present invention, its applications, or its uses.

<< Embodiment 1 >>
FIG. 1 shows a warhead (10) according to the first embodiment of the present invention. This warhead (10) is mounted on a missile (1) as shown in FIG. The missile (1) is equipped with a sensor (2) to identify the target. The sensor (2) is composed of, for example, an image sensor, an acoustic sensor, a vibration sensor, or the like, and outputs a signal necessary for detecting a target and identifying its type. Hereinafter, the rear of the missile (1) is referred to as "rear", and the front (direction of travel) of the missile (1) is referred to as "forward".

The warhead (10) has a substantially cylindrical shell (11). The bullet shell (11) is attached to the bottomed cylindrical main body (11a) that is released rearward and the main body (11a) so as to block the release side of the main body (11a), and is released forward. It has a substantially bottomed cylindrical mounting part (11b). A male screw portion (not shown) is provided on the outer peripheral surface of the release side end portion of the main body portion (11a), and a female screw portion (not shown) is provided on the inner peripheral surface of the release side end portion of the mounting portion (11b). ) Is provided. The main body portion (11a) and the mounting portion (11b) are integrally assembled by screwing and fastening the male screw portion of the main body portion (11a) to the female screw portion of the mounting portion (11b). The method of assembling the main body portion (11a) and the mounting portion (11b) is not limited to this.

As shown in FIGS. 3 and 4, a long shaped charge wire (12) is spirally wound a plurality of times around the inner outer peripheral end of the main body (11a) of the bullet shell (11). It is arranged in a state of being. The shaped charge wire (12) consists of a long metal housing (13) having a V-groove (13a) formed on its surface and an explosive wire explosive (14) housed in the housing (13). And have. As the metal constituting the housing (13), a pure metal such as aluminum or copper is adopted. Further, the radial width W of the shaped charge wire (12) is set shorter than the thickness T1 of the peripheral wall of the main body portion (11a) of the bullet shell (11), and is set to, for example, about 1/2 of the thickness T1. Will be done. The housing body (13) has its V-groove (13a) directed toward the inner surface of the main body portion (11a) over the entire circumference. The outer peripheral surface of the containment body (13), that is, the V-groove (13a) forming surface and the inner surface of the bullet shell (11) are in contact with each other or have a minute gap between them. The shaped charge line (12) is an LSC (Linear Sharped Charge).

Inside the shaped charge wire (12), a cylindrical sheet-shaped cushioning material (15) whose both ends are open and parallel to the inner peripheral surface of the main body (11a) is the shaft of the main body (11a). It is arranged in the entire direction. The cushioning material (15) is made of resin or rubber. The entire inside of the cushioning material (15) is filled with the main explosive charge (16). The thickness T2 of the cushioning material (15) is set shorter than the radial width W of the shaped charge wire (12).

Inside the mounting part (11b), there is a first detonator (17) as the first detonator to detonate the main explosive (16) and a second detonator as the second detonator to detonate the explosive wire explosive (14). 2 Detonator (18) is housed. The first detonator (17) and the second detonator (18) are each composed of an electric detonator or the like containing a detonator or the like. The second detonator (18) can detonate the explosive line explosive (14) before the main detonator (16) is detonated by the first detonator (17). The arrangement of the first detonator (17) and the second detonator (18) is not limited to the arrangement illustrated in FIG.

The first detonator (17) and the second detonator (18) are connected to the detonator controller (3) shown in FIG. The detonation controller (3) is built into the missile (1) and receives the output signal of the sensor (2).

To specifically explain the processing operation of the detonation controller (3) with reference to FIG. 5, in the first step S101, the detonation controller (3) estimates the vulnerability of the target based on the output signal of the sensor (2). Vulnerability is estimated based on, for example, the color, size, etc. of the target. In S102, the detonation controller (3) determines whether or not it is necessary to adjust the fragment size of the bullet shell (11) based on the vulnerability estimated in S101. If the target is more vulnerable than the prescribed criteria, it is determined that the shell (11) debris size needs to be adjusted, and if the target is not more vulnerable than the prescribed criteria, the shell (11) It is judged that the adjustment of the fragment size is not necessary. If it is not necessary to adjust the fragment size of the bullet shell (11), the process proceeds to S103, while if the fragment size of the bullet shell (11) needs to be adjusted, the process proceeds to S104.

In S103, the detonator controller (3) causes the first detonator (17) to detonate the main explosive charge (16). As a result, the shell (11) can be broken into pieces of random size by the detonation pressure of the main explosive charge (16) without adjusting the piece size.

In S104, the detonator controller (3) causes the second detonator (18) to detonate the explosive line explosive (14). As a result, the V-groove (13a) of the shaped charge wire (12) becomes a metal jet, protrudes to the outer peripheral side (direction indicated by the arrow X in FIG. 3), and spirally extends to the inner surface of the shell (11) in the circumferential direction. The notch (N) is formed so as to be recessed outward. In FIG. 3, the notch (N) is indicated by a chain double-dashed line. At this time, since the cushioning material (15) is interposed between the main explosive (16) and the shaped charge wire (12), the explosive wire explosive (14) of the shaped charge wire (12) explodes. Explosion of main explosive (16) is not triggered. After that, the detonation controller (3) advances the process to S103.

When the operation of S103 is executed after the operation of S104 is executed, the main explosive charge (16) is detonated with the notch (N) formed on the inner surface of the shell (11). At this time, since stress is concentrated around the notch (N), the shell (11) is likely to break with the notch (N) as a boundary. Therefore, the bullet shell (11) is broken to a size intended in the axial direction as compared with the case where the operation of S103 is performed without executing the operation of S104.

On the other hand, when the operation of S103 is executed without executing the operation of S104, the main explosive charge (16) is used in a state where the notch (N) as described above is not formed in the shell (11). Detonate. Therefore, the shell (11) breaks into pieces of random size as compared with the case where the operation of S103 is performed after the operation of S104.

In this way, before the detonator of the main explosive (16) by the first detonator (17), the explosive line explosive (14) was detonated by the second detonator (18) and the case where it was not detonated. Since the shape of the fragments after the shell (11) is broken is different, the explosive line explosive (14) by the second detonator (18) is before the detonation of the main detonator (16) by the first detonator (17). ) Can be detonated, or the shape of the fragment after the shell (11) is broken can be selected.

According to the first embodiment, since only one spiral shaped charge wire (12) is provided, the shaped charge wire (12) is provided inside the shell (11) as compared with the case where a plurality of annular shaped charge wires are provided. ) Can be easily installed and the number of parts can be reduced. Further, since it is not necessary to provide a plurality of second detonators for detonating each shaped charge wire, the structure of the warhead (10) can be simplified.

Further, since the shape of the broken pieces of the bullet shell (11) can be selected according to the vulnerability of the target, the shape of the broken pieces of the bullet shell (11) can be made into a shape suitable for the target.

<< Embodiment 2 >>
FIG. 6 shows a warhead (10) according to the second embodiment of the present invention. In the second embodiment, two shaped charge wires (12) are provided. Both shaped charge wires (12) are spirally arranged parallel to each other so as to be adjacent to each other in the axial direction over the entire length. In addition, a second detonator (18) is provided for each shaped charge wire (12).

Further, as shown in FIG. 7, when the detonation controller (3) determines in S102 that the debris size needs to be adjusted, the process proceeds to S201. Then, in S201, it is determined whether or not it is necessary to subdivide the fragments. If it is necessary to subdivide the debris, the process proceeds to S202, and if it is not necessary to subdivide the debris, the process proceeds to S203. Here, the determination as to whether or not the fragmentation of the fragments is necessary is performed based on the vulnerability of the target estimated in S101.

In S202, both second detonators (18) are detonated with explosive line explosives (14). As a result, the V-groove (13a) of both shaped charge wires (12) protrudes outward to form a notch (N) extending spirally in the circumferential direction on the inner surface of the shell (11). Then, the process proceeds to S103.

On the other hand, in S203, only one of the second detonators (18) of the two second detonators (18) is detonated with the explosive line explosive (14). As a result, the V-groove (13a) of one of the shaped charge wires (12) protrudes outward to form a notch (N) extending spirally in the circumferential direction on the inner surface of the shell (11). Then, the process proceeds to S103.

When both second detonators (18) were detonated in S202, the notch (N) was the shell (11) compared to the case where only one second detonator (18) was detonated in S203. Since it is formed more densely in the axial direction, the shell (11) can be broken more finely in the axial direction. In this way, depending on whether both second detonators (18) are detonated or only one of the second detonators (18) is detonated, the size of the debris after the shell (11) is broken. Can be selected.

Since other configurations and operations are the same as those in the first embodiment, the same configurations and operations are designated by the same reference numerals and detailed description thereof will be omitted.

In the first and second embodiments, the main body (11a) of the bullet shell (11) is released only to the rear, but the main body (11a) is released back and forth, and the main body (11a) is released. A liner that is ejected forward in response to the explosion of the main explosive charge (16) may be provided in the release portion on the front side of the.

Further, in the above-described first and second embodiments, the shaped charge wire (12) has a spiral shape, but other shapes such as an annular shape and a linear shape may be used.

Further, in the first and second embodiments, the determinations in S102 and S201 are performed based on the vulnerability of the target. However, it may be done based on other attributes of the target and the state of the shell (11), such as whether the shell (11) has been destroyed. Further, the missile (1) may be provided with a receiving means for receiving the user's command wirelessly, and the determination in S102 and S201 may be performed based on the command received by the receiving means.

Further, in the second embodiment, two shaped charge wires (12) are provided on the warhead (10), but a plurality of three or more molded explosive wires (12) are provided, and a second detonator (18) is provided for each shaped charge wire (12). You may.

As described above, the present invention is useful for warheads that include a bullet shell and an explosive charge that fills the shell.

10 warheads
11 shell
11a Main body 12 Shaped charge wire
13 Containment body
13a V groove
14 Explosives for explosives
15 Cushioning material
16 Main explosive
17 1st detonator (1st detonator)
18 2nd detonator (2nd detonator)

Claims (4)

A warhead equipped with a bullet shell (11), a main explosive charge (16) filled inside the bullet shell (11), and a first detonation means (17) for detonating the main explosive charge (16). ,
It has a long metal container (13) having a V-groove (13a) formed on its surface, and an explosive wire explosive charge (14) housed in the container (13). A shaped charge wire (12) disposed inside the shell (11) with the (13a) facing the inner surface of the shell (11).
With the second detonation means (18) capable of detonating the explosive wire explosive (14) of the shaped charge wire (12) before the detonation of the main explosive (16) by the first detonation means (17). A warhead characterized by being equipped with. In the warhead according to claim 1,
The bullet shell (11) has a cylindrical body portion (11a) and has a cylindrical body portion (11a).
The shaped charge wire (12) is a warhead characterized in that the molded explosive wire (12) is arranged at the outer peripheral end portion of the main body portion (11a) in a spirally wound state. In the warhead according to claim 1 or 2.
Multiple shaped charge wires (12) are provided,
The second detonation means (18) is a warhead characterized in that it is provided for each of the shaped charge wires (12). In the warhead according to any one of claims 1 to 3,
A warhead characterized in that a cushioning material (15) is interposed between the main explosive charge (16) and the shaped charge wire (12).

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