RU2235277C2 - Cumulative-fragmentation combat part - Google Patents

Abstract

FIELD: defense industry; production of ammunition.

SUBSTANCE: the invention is dealt with the field of military engineering and may be used at designing of cumulative - fragmentation combat parts. The cumulative-fragmentation combat part contains a hollow-charge combat part in a body, an inert insert built in the bottom of the body, a fragmentation combat part with an explosive charge in a body with a bottom installed behind the hollow-charge combat part, and an exploding device installed on an external surface of a bottom of the fragmentation combat part. In an inert insert there is a cavity, which contains a transmission charge. The explosive charge of the fragmentation combat part is made with an axial channel, inside which there is a detonation pulse translator connecting the transmission charge of the hollow-charge combat part with a firing circuit of the explosive device. On the peripheral surface of the hollow-charge combat part bottom on the side of an explosive charge there is a unit of detonation transmission from the charge of the hollow-charge combat part to the explosive charge of the fragmentation part made in the form of the ring-type recess overlapped(blocked) by a bellow and connected with the transmission charge through the coaxial channels located in the recess and equally spaced one from another and filled in with an explosive substance of the same composition as the transmission charge has. The technical result of the invention is an increase of efficiency of the cumulative - fragmentation combat part action at the expense of organization of separate initiation of the hollow-charge and fragmentation combat parts.

EFFECT: the invention allows to increase efficiency of the cumulative - fragmentation combat part action.

3 cl, 3 dwg

Description

The invention relates to the field of military equipment and can be used in the design of cumulative-fragmentation warheads.

Known large-caliber grenade with a bursting charge and fuse, containing a cumulative charge located in the head, the body is made with a preliminary notch to increase the effectiveness of the fragmentation warhead in the radial direction.

The shock fuse is made bottom and installed behind an inert liner of a cumulative charge (EPO (EP), application No. 0364670, MKI F 42 B 12/10, publ. 25.04.90).

The disadvantage of this design is the implementation of a fragmentation shirt on the body of the cumulative charge, which reduces the effectiveness of the cumulative jet on the armored barrier due to energy losses in the destruction of a thick-walled body with a notch. If the case is made thin-walled, the fragmentation effect of the grenade is not ensured. In addition, explosive compositions (AC) of increased power, used to obtain the maximum cumulative effect, have too high brisance, which leads to additional fragmentation of the fragments, that is, the size of the fragments is less than expected.

To some extent, these shortcomings were eliminated in the design of the guided missile (Russian patent No. 2046281 from 10.20.95, application 50316193/23 from 10.03.92), selected as a prototype, containing a cumulative warhead with an inert insert in the form of lens unit and located behind the cumulative warhead without a gap fragmentation warhead connected to an explosive device, while the lens node is placed in the fragmentation warhead at the end face adjacent to the cumulative warhead. The disadvantage of this design is the inability to provide sequential separate initiation of the cumulative and fragmentation warheads, and the placement of an explosive device on the outer surface of the fragmentation warhead leads to instability of the results and reduces the effectiveness of the cumulative-fragmentation warhead on the target due to the increased influence of random defects of the fragmentation charge on uniformity of the detonation front of the cumulative warhead due to the significant removal of explosive a device (slam-actuator) of the lens assembly (inert paste).

The objective of the present invention is to increase the effectiveness of the cumulative-fragmentation warhead due to the organization of the separate initiation of the cumulative and fragmentation warheads.

This is achieved due to the fact that in a cumulative-fragmentation warhead containing a cumulative warhead in the hull, an inert insert installed in the bottom of the hull, a fragmentation warhead with a bursting charge in the hull with a bottom mounted behind the cumulative warhead, and an explosive device, mounted on the outer surface of the bottom of the fragmentation warhead, a cavity is made in the inert insert in which the transfer charge is placed, the explosive charge of the fragmentation warhead is made with an axial channel inside which the tram is placed a detonation pulse generator connecting the transfer charge of the cumulative warhead to the firing circuit of the explosive device, and on the peripheral surface of the bottom of the shell of the cumulative warhead from the explosive charge side there is a knock transfer unit from the charge of the cumulative warhead to the explosive charge of the fragmentation unit, made in the form of an annular recess, blocked by a membrane and communicated with a transfer charge by coaxial channels placed in the recess with the same pitch relative to each other and filled GOVERNMENTAL explosive having the same composition as that of the transfer charge.

In a particular embodiment, due to the fact that the detonation pulse translator is made of a translating cord in the shell and amplifiers mounted on its ends, made in the form of cylindrical canisters, in which an initiating charge is installed on the side of the explosive device and the transfer charge of the cumulative warhead him without a gap blasting explosive charge placed inside the end of the translating cord, the end parts of the translator housing are installed in the axial holes of the bottoms cumulatively and fragmentation warhead.

In a particular embodiment, the channels in it, connecting the transfer charge with the annular recess of the bottom of the cumulative warhead, are made with broadening towards the annular recess.

The invention is illustrated by drawings.

Figure 1 shows a cumulative-fragmentation warhead, consisting of a cumulative warhead 1 in the housing 2 with a bottom 3, an inert insert 4 with a cavity in which a transfer charge 5, fragmentation warhead 6, an explosive device 7 mounted on the outer surface is placed the bottom 8 of the fragmentation warhead, a bursting charge 9 with an axial channel, inside which a detonation pulse translator 10 is installed, connecting the transfer charge of the cumulative warhead to the firing circuit of the explosive device 7.

Figure 2 shows a translator made up of a translating cord in the shell 12 and amplifiers 13 mounted on its ends, which are installed in the holes of the bottoms of the cumulative and fragmentation warhead 11 (see figure 1), in the cases of amplifiers (cases) an initiator is installed explosive charge 14, and behind it without a gap, the blasting explosive charge 15.

Figure 3 shows the bottom of the cumulative warhead 3 with an annular recess 16 made thereon, covered by a membrane 17 and connected to the transfer charge 5 by coaxial channels 18 with broadening towards the annular recess 19.

The proposed design works as follows. When the head contacts or signal from the non-contact target sensor is closed, an explosive device 7 is triggered, the detonation pulse is transmitted through the translator of the detonation pulse 10 to the transfer charge 5 of the cumulative warhead 1 through an amplifier installed in the firing circuit of the explosive device.

The detonation wave moves along the transfer charge 5 around the inert insert 4, bends around it, forming a converging front of the detonation wave, which, interacting with the funnel of the cumulative warhead, causes it to collapse with the formation of a cumulative jet.

Simultaneously with the movement along the transfer charge, the detonation wave moves along coaxial channels 18, filled with explosives of the same composition as the transfer charge, in the direction of the cavity of the annular recess 16 covered by the membrane 17. Placing the channels with the same pitch relative to each other in conjunction with the annular cavity , covered by a membrane, ensure the uniformity of the end shock-wave initiation of the explosive charge of the fragmentation warhead, while the detonation of the charge occurs through a small the second time interval necessary to increase the parameters of the incoming shock wave to detonation, after the collapse of the cumulative warhead.

The uniformity of the shock-wave initiation of the explosive charge of the fragmentation warhead and the separate initiation of the cumulative and fragmentation warheads increase their effectiveness on the target.

The implementation of the translator cumulative-fragmentation warhead 10 composite of the translating cord in the shell 12 and the amplifiers 13 mounted on its ends increases the reliability of initiation by placing sequentially initiating charge with a low excitation pressure 14 in the amplifiers' canisters, and then a high-pressure excitation 15, brisant with high pressure possible technological errors (misalignment, etc.) between the firing device channel of the explosive device and the translator.

The implementation of the channels connecting the transfer charge with the annular recess of the bottom of the cumulative warhead, with broadening towards the annular recess, increases the convergence of the detonation wave and enhances the uniformity of the impact on the membrane of the annular recess, which, in turn, ensures the uniformity of the shock-wave initiation of the explosive charge of the warhead. In addition, this design makes it possible to separately manufacture the cumulative and fragmentation warhead of the ammunition, to select the optimal explosive compositions for the parameters of the cumulative and fragmentation warheads, which reduces the cost of their manufacture.

Thus, the use of the proposed technical solution in the design of the cumulative-fragmentation warhead allows to increase the effectiveness of its action both on air and ground targets.

Sources of information

1. Large-caliber grenade. EPO application 0364670, publication 04.25.90, No. 17, MKI F 42 B 12/10, 5/02, F 42 C 15/26, 9/18 - analogue.

2. Patent of Russia 2046281 from 10.20.95. Application 5031693 from 03/10/92 - a prototype.

Claims (3)

1. Cumulative-fragmentation warhead containing a cumulative warhead in the housing, an inert insert installed in the bottom of the shell, fragmentation warhead with a bursting charge in the housing with the bottom mounted behind the cumulative warhead, and an explosive device mounted on the outer surface of the bottom of the fragmentation warhead, characterized in that in the inert insert there is a cavity in which the transfer charge is placed, the explosive charge of the fragmentation warhead is made with an axial channel, inside which the translator is placed a national impulse connecting the transfer charge of the cumulative warhead to the firing circuit of the explosive device, and on the peripheral surface of the bottom of the cumulative warhead from the side of the explosive charge there is a knock transfer unit from the charge of the cumulative warhead to the explosive charge of the fragmentation unit, made in the form of an annular recess covered by a membrane connected with the transfer charge by coaxial channels placed in the recess with the same pitch relative to each other and filled with explosive things stvom the same composition as that of the transfer charge. 2. The cumulative-fragmentation warhead according to claim 1, characterized in that the detonation pulse translator in it is made up of a translating cord in the shell and amplifiers mounted on its ends, made in the form of cylindrical canisters, in which from the side of the explosive device and transfer charge a cumulative warhead has an initiating charge installed, followed by a blasting explosive charge behind it with a translating cord end located inside the end, the end parts of the translator body are installed in axes x holes of the bottom of the cumulative and fragmentation warheads. 3. The cumulative-fragmentation warhead according to claim 1 or 2, characterized in that in it the channels connecting the transfer charge to the annular recess of the bottom of the cumulative warhead are made with broadening towards the annular recess.

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