RU206785U1 - SHRAPEL SHRAPNEL Grenade Launcher Shot - Google Patents

Abstract

The utility model refers to ammunition for under-barrel grenade launchers, which are mounted under the barrel of AKM, AK-74 Kalashnikov assault rifles, and is designed to defeat both openly located and sheltered manpower. In order to increase the effectiveness of grenade launcher weapons for hitting targets with high lethality such as a machine gunner, a grenade launcher or an anti-tank missile system calculation, when conducting hostilities in open areas or in urban conditions, a fragmentation-shrapnel grenade launcher is proposed. The fragmentation-shrapnel grenade launcher consists of a remote explosive device, which includes a head (threaded into the head of the body) and bottom (threaded into the bottom of the body) parts, a combustion chamber located in the tail of a grenade with an external profile under the barrel prechamber a grenade launcher containing a propellant charge with a primer-igniter and a warhead, in the body of which an explosive charge and a block of compact ready-made submunitions filled with brown coal wax are placed, to maintain the shape of the block in service, which, under the action of detonation products of the explosive charge, rush towards the target with additional speed. 1 ill.

Description

The utility model refers to ammunition for grenade launchers, which are mounted under the barrel of Kalashnikov assault rifles AKM, AK-74, etc., which are in service with the airborne troops, reconnaissance units and special forces. The shrapnel-fragmentation grenade launcher is designed to destroy both openly located and sheltered manpower.

Currently, for firing from 40-mm underbarrel grenade launchers, which are mounted under the barrel of Kalashnikov assault rifles AKM, AK-74 of the GP-30, GP-34 type, grenade launcher shots are widely used as the main one with fragmentation, high-explosive and incendiary grenades, as well as for special purposes with lighting, smoke and gas grenades.

When firing at targets such as a machine gunner, a grenade launcher or an anti-tank missile system (ATGM) calculation, it is necessary to have ammunition for an under-barrel grenade launcher, the detonation of which is carried out in front of the target at the so-called lead point, while a stream of ready-made damaging elements directed at the target is formed.

A shot with a fragmentation grenade has a high efficiency of action, since the presence of a shell leads to the formation of a significant number of fragments, but since the detonation of the fuse occurs upon contact with an obstacle, the main part of the fragments goes into the ground or up, not taking part in hitting the target [1 ].

To some extent, the noted drawbacks are eliminated in the design of an artillery cartridge for an automatic grenade launcher [2], containing a head fuse, the detonator of which communicates with the explosive filling the body, which carries the formed striking elements, the leading belt and the combustion chamber of the propellant propellant charge fixed to the body shank, from the end closed by a diaphragm carrying a coaxial primer-igniter, characterized in that the diaphragm is made in the form of a monolithic bottom connected to the combustion chamber, equipped with an extraction flange, and the striking elements having an aerodynamic shape are tightly packed in longitudinal rows around the central tube of the cassette, under a damping support for striking elements of which an explosive substance is placed for filling the case, and inside the central tube of the cassette there is mounted an expelling powder device of the head fuse, equipped with a fire-transfer throttle directed downward, and the damping support p adjoins the housing chamber.

The disadvantage of this design is the presence of an undercut profile at the end of each striking element, which provides a hinged abutment of the head part of the downstream element combined with it, does not provide a wide angle of dispersion of the striking elements. In addition, the presence of a filling made of gunpowder does not ensure crushing of the body of an artillery cartridge into fragments, which reduces the effectiveness of its action.

The task to be solved by the present utility model is to increase the efficiency of the fragmentation action of a grenade launcher shot to a 40-mm underbarrel grenade launcher.

The grenade launcher consists of a remote explosive device, which includes a head (threaded into the head of the body) and bottom (threaded into the bottom of the body) parts, a combustion chamber located in the tail of the grenade with an external profile under the prechamber of the barrel of the grenade launcher, containing a propellant charge with a primer-igniter, and a warhead, in the body of which a block of compact ready-made projectiles is placed, filled with brown coal wax, which retains the shape of the block in service circulation, an explosive charge. The command to detonate the explosive charge from the head of the remote explosive device to the bottom is transmitted through an electrical conductor that runs along the entire body of the grenade.

In this design, the presence of a bursting charge made of an explosive and a block of ready-made striking elements of a compact form in the amount of 30 pieces, weighing 0.78 g, 5 mm in diameter and 5 mm in height, leads to an increase in the effectiveness of the grenade both in open areas and and when conducting hostilities in urban areas to engage targets with high lethality, such as machine gunner, grenade launcher or ATGM crew.

The objective of this utility model is to improve the effectiveness of the grenade launcher. This is achieved due to the fact that in a fragmentation-shrapnel grenade launcher, consisting of a remote explosive device, including a head (threaded into the head of the body) and bottom (threaded into the bottom of the body) parts of the combustion chamber located in the tail section of a grenade with an external profile under the prechamber of the grenade launcher barrel, containing a propellant charge with a primer-igniter, and a warhead, in the body of which an explosive charge and a block of compact ready-made striking elements are placed, filled with brown coal wax to maintain the shape of the block in service, which are under by the action of the detonation products of the explosive charge, they rush towards the target with an additional velocity, and the body of the grenade is crushed into fragments, which are scattered in the radial direction. This technical solution is illustrated by graphic materials.

FIG. 1 shows a grenade launcher shot.

The grenade shot includes the following elements:

1 - warhead of a remote explosive device; 2 - conical fairing; 3 - gasket, 4 - block of ready-made striking elements; 5 - grenade body; 6-bursting charge; 7 - electrical conductor; 8 - bottom part of a remote explosive device, 9 - propellant charge, 10 - primer-igniter.

The grenade launcher operates as follows.

Before firing, the shooter sets the fuse response time by turning the head sleeve. The response time varies from 0.5 to 6 seconds.

When fired, the drummer of the grenade launcher pricks the primer-igniter 10. The beam of fire from the primer-igniter 10 ignites the propellant propellant 9, resulting in the formation of powder gases, from the action of which the grenade flies out of the bore of the grenade launcher at a speed of 70 m / s. When the detonation time of the fuse is reached, the detonation pulse from the head part of the remote explosive device 1 is transmitted through the electrical conductor 7 to the actuator of the bottom part of the remote explosive device 8, which initiates the explosive substance of the explosive charge 6. Under the action of the detonation products of the explosive charge, the block of ready-made projectiles is ejected forward at an average speed of 850-870 m / s, forming a cone with an angle of 25 ° at the apex, and the shell of the grenade body is crushed into fragments, which scatter in the radial direction at a speed of up to 817 m / s.

The proposed design of a grenade launcher shot increases the effectiveness of grenade launchers when firing at targets such as a machine gunner, a grenade launcher or a crew (ATGM), both in open areas and in urban areas, due to the directed action of ready-made striking elements 4 towards the target, and fragments formed from the body of the grenade 5, scattering radially, forming an additional wide front of defeat.

Sources of information

1. Means of destruction and ammunition: Textbook / A.V. Babkin, V.A. Veldanov, E.F. Dirty, etc .; Under total. ed. V.V. Selivanov. - M .: Publishing house of MSTU im. N.E. Bauman, 2008 .-- 984 p.

2. An artillery cartridge for a grenade launcher. - Patent of Russia No. RU 77037 U1, application No. 2008121012/22 dated May 28, 2008, IPC: 7 F42B 12/32.

Claims (1)

A fragmentation-shrapnel grenade launcher shot, consisting of a combustion chamber located in the tail of the grenade, with an external profile under the prechamber of the grenade launcher barrel, containing a propellant charge with a primer-igniter, and a warhead, characterized in that an explosive charge is placed in the body of the grenade and is filled with brown coal wax, retaining the shape of the block in service circulation, a block of compact ready-made striking elements, while the body of the grenade is designed to be crushed into fragments and scattered in the radial direction, the remote explosive device consists of a head and bottom parts.

Images