RU2362962C1 - "tverityanka" splinter-in-beam supercaliber grenade - Google Patents

Abstract

FIELD: weapons.

SUBSTANCE: invention relates to hand-grenade launcher splinter grenades. Proposed grenade comprises supercaliber front part with solid-propellant charge and igniter. Supercaliber firing part is arranged ahead of aforesaid front part accommodating explosive, trajectory fuse and hitting elements. Supercaliber firing part comprises rear section incorporating splinter casing with explosive charge and aforesaid trajectory fuse. It comprises also front part consisting of a set of hitting units, each including a casing with explosive charge. The charge front face accommodates a layer of hitting elements and fuse with retarder. Note here that separating pyrotechnical charge is arranged between aforesaid front and rear sections, connected with trajectory fuse.

EFFECT: higher hitting ability.

6 cl, 6 dwg

Description

The invention relates to ammunition, and more particularly to fragmentation grenades of hand-held anti-tank grenade launchers.

Known fragmentation grenade for grenade launcher used in the composition of the shot OG-7V. The grenade has an elongated body of predetermined crushing, an impact fuse and forms a circular fragmentation field. When a gap occurs on the surface of the earth, most of the fragments go into the ground and the upper hemisphere. The grenade is not capable of hitting targets in the trenches.

Currently, grenades with trajectory (air) rupture over the target, providing such an opportunity, are being intensively developed. An example is the NTE-309 grenade for 40 mm US grenade launchers Mk19, Mk47. At the same time, a small dispersion of the discontinuity points in range is required, which makes high demands on the accuracy of temporary fuses.

Known over-caliber grenade exploded when approaching a target at a certain distance from it and creating an axial field of fragments. The grenade consists of a caliber unit with a charge of solid fuel and a means of ignition, and a super-caliber warhead located in front of it with a charge of an explosive substance and a fuse. At the front end of the explosive charge there is a metal striking unit, and the fuse is equipped with a timing mechanism. If necessary, a gap can be realized over the target (see RU 2118788 C1, publ. 09/10/1998) - the closest analogue. The main organic disadvantage of grenades is the incomplete use of its metal mass in both main cases of its use. In the case of a grenade rupture at a pre-determined point in front of the target, the target is hit by the axial flow of the GGE, and the energetically rich circular field of the fragments of the shell makes no contribution to the defeat. In contrast, with a path gap above the target or a ground gap in the target area, the target is only hit by a circular field, and the axial flow is practically not used.

The objective of the invention is to remedy this drawback.

The technical solution consists in the fact that the fragmentation-fragmentation super-caliber grenade contains a caliber part with a solid fuel charge and an ignition means, in front of which there is a super-caliber warhead containing an explosive, a trajectory fuse and ready-to-use striking elements. The over-caliber warhead of a grenade consists of a rear section that is capable of separating, containing a fragmentation shell with a charge of explosive and said trajectory fuse, and a front section containing a set of throwing blocks, each of which contains a body with a charge of explosive, at the front end of which there is a layer the said finished damaging elements, and a fuse with a moderator, while between the front and rear sections there is a pyrotechnic separation charge connected to the path fuse.

In private versions, the trajectory fuse is made temporary, or non-contact, or command type. The pyrotechnic separation charge is connected to the trajectory fuse by an electric or pyrotechnic axial channel. The fragmentation case is made of steel 60C2, 80C2, 80G2S.

Finished damaging elements are made of steel or heavy alloys. Housings throwing blocks made of light alloy or composites.

The above-caliber diameter of the front section provides a large contact area between the explosive charge and the layer of hydroelectric charge of the propelling unit, which, according to the principle of active masses of KP Stanyukovich, leads to the maximum use of the explosive charge energy.

Figure 1 - General view of the grenade; figure 2 - the warhead of the grenade; figure 3 - throwing unit;

figure 4 - grenade with a twisting mechanism; figure 5 - action grenades; 6 is a diagram of a trajectory blasting system.

Nadkalibernaya grenade, shown in figure 1, is designed to shoot from a grenade launcher type RPG-7 and is made in dimensions thermobaric grenade TBG. The grenade consists of a caliber part 1 and a super-caliber warhead 2. The latter, in turn, consists of a rear section 3 and a front section 4, representing a set of throwing blocks. The caliber part of the grenade contains a jet engine 5 with a charge of solid fuel and a nozzle block 6, a rod 7 connected via a detachable connection 8 to the rear end of the jet engine, equipped in the middle with a drop-down stabilizer 9, and in the rear part with a turbine 10. Blow-out powder charge located along the entire length of the rod, not shown in figure 1.

The rear section 3 of the warhead (FIG. 2) contains a steel body 11 of a given crushing, a temporary trajectory bottom fuse 12 with a receiver 13, explosive charge 14, a pyrotechnic separation charge 15 connected by a channel 16 to the trajectory fuse.

The front section 4 of the warhead contains a set of throwing blocks 17 and the head cover 18.

The throwing unit (Fig. 3) contains a housing 19 made of light alloy or composites filled with a charge of explosive 20. A fuse 21 is installed in the bottom of the housing. At the front end of the explosive charge is a single-layer stacking 22 of the GGE. The fuse is equipped with an inertial sensor and moderator.

Figure 4 shows the execution of the grenade, providing a higher angular velocity of the throwing blocks due to the introduction of a screw pair: a guide pin is a through hole in the throwing block.

The action of the grenade is shown in figure 5. Before a shot, the range to the target and the flight range to the front section are determined, calculated using the calculator built-in the grenade launcher, the corresponding flight time and is carried out through the installer located on the barrel of the grenade launcher and the receiver of the grenade commands installing a temporary fuse.

The rotation of the grenade in flight is supported by giving the nozzles an angle of inclination relative to the axis of the grenade, one-sided bevels on the edges of the stabilizer blades and the turbine. This rotation is necessary both to increase the accuracy of shooting, and to ensure the gyroscopic stability of the flight of propelling units after separating them from the grenade.

An increase in the angular velocity of the grenade can be achieved both by modifying the above elements, mainly by increasing the angle of inclination of the nozzles and blades, and by other structural measures, in particular by introducing a screw pair in Fig. 4.

At the calculated point, a temporary type 12 fuse is triggered, its moderator starts and the pulse is transmitted through the pyrotechnic or electric channel 16 to the pyrotechnic separation charge, the actuation of which leads to the firing of the front section of the warhead, consisting of propelling units (Fig.5b). When firing blocks, the shock is perceived by the inertial sensors of their fuses, and moderators are launched. A stable flight of the blocks with their ends forward is provided by the gyroscopic moment. Blocks have a difference in external shape, which ensures their divergence along the direction of flight and in the transverse direction.

After practicing the deceleration time, which ensures that the throwing blocks are removed to a distance that is safe by the effect of their detonation on the main part of the grenade, they are detonated with the formation of the axial field of the GGE (Fig. In this case, the impact of fragments of the shells of the throwing blocks on the main part is insignificant due to the manufacture of cases from light materials.

The main part of the grenade, continuing to move toward the target, passes over it and at this moment is blown up from the moderator of the bottom fuse 12, hitting the target with fragments of the body 11 (Fig. 5g). Thus, almost the entire metal mass of the warhead is used to hit the target. To enhance the fragmentation effect of the case, it is advisable to manufacture it from high-fragmentation steels 60С2, 80С2, 80Г2С.

Along with the trajectory fuse of the temporary type, it is also possible to use non-contact and command types of fuses. In order to unify, it is advisable to carry a fragmentation-beam grenade in the dimensions and mass of the TBG-7 thermobaric grenade.

A block diagram of an automatic trajectory blasting system is shown in FIG. 6. The distance to the target is measured by a laser range finder 22, aimed at it using a helmet-mounted sight 23. The range value is contacted by a contactless method or via cable 24 to the ballistic computer 25. The calculated time setting is fed to the barrel automatic installer 27. Using the elevation sensor of the barrel of the grenade launcher 28 and the helmet-mounted sight sets the required elevation angle, after which a shot is fired.

Claims (6)

1. A fragmentation-beam over-caliber grenade containing a gauge part with a solid fuel charge and ignition means, in front of which there is a super-caliber warhead containing an explosive, a trajectory fuse and ready-to-use striking elements, characterized in that the over-caliber warhead of the grenade consists of separating the back section containing the fragmentation shell with the explosive charge and said trajectory fuse, and the front section containing the set of propelling shackles, each of which comprises a body with explosive charge at the front end of which is a layer of said finished submunitions, and fuse with the retarder, wherein the front and rear sections is situated a pyrotechnic charge separation, coupled to the fuse trajectory. 2. Grenade according to claim 1, characterized in that the trajectory fuse is made temporary, or non-contact, or command type. 3. Grenade according to claim 1, characterized in that the pyrotechnic separation charge is connected to the trajectory fuse by an electric or pyrotechnic axial channel. 4. The grenade according to claim 1, characterized in that the fragmentation case is made of steel 60C2, 80C2, 80G2S. 5. Grenade according to claim 1, characterized in that the finished striking elements are made of steel or heavy alloys. 6. Grenade according to claim 1, characterized in that the housing throwing blocks are made of light alloy or composites.

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