RU2309375C1 - Fragmentation-bundle projectile "vladimir" - Google Patents

Abstract

FIELD: roll-stabilized ammunition having simultaneously axial and round destruction fields.

SUBSTANCE: the projectile has a roll-stability device and is provided with a body with an explosive charge, base time fuse with a detonator located in the charge axis, nose cap with a nose contact assembly, a setting pickup having an electric coupling to the time fuse is positioned in its front section, and a fragmentation block made with a deflection from the axial symmetry relative to the projectile axis and having a contact surface with the explosive charge. The fragmentation block is positioned between the explosive charge and the nose cap, and the contact surface of the explosive charge with the fragmentation block is inclined to the projectile longitudinal axis, a blast-resistant insert is installed in the explosive charge for provision of a normal incidence of the detonation front onto the contact surface of the fragmentation block with the explosive charge.

EFFECT: enhanced injurious effect of the projectile.

4 cl, 5 dwg

Description

The invention relates to ammunition having both axial and circular fields of destruction, and more particularly to stabilized rolls of shells of tank guns.

In the patent of the Russian Federation No. 2018779 a fragmentation-beam projectile is proposed comprising a body, a head part with a fuse, an explosive charge (BB) placed in the body and an axisymmetric fragmentation block placed between the head part and the explosive charge. During explosive throwing of an axisymmetric block, the beam of ready-made striking elements (GGE) of the fragmentation block will have the shape of a cone, the axis of which is a continuation of the axis of the projectile. When shooting at short ranges, for example, from a tank gun, when the trajectory of the projectile is almost parallel to the surface of the earth, the finished striking elements of the upper part of the beam’s cross section fly above the target and are not used to destroy it. This is a major design flaw.

The closest solution is a fragmentation-beam projectile equipped with a roll stabilization device and containing a body with an explosive charge, a bottom temporary fuse with a detonator located on the charge axis, a head cap with a head contact assembly, in front of which there is an installation receiver connected by an electrical connection with a temporary fuse, and a fragmentation unit made with a deviation from axial symmetry relative to the axis of the projectile and having a contact surface with an explosive charge tva, while the roll stabilization device is configured to provide projectile flight, in which the normal to the contact surface of the explosive charge with the fragmentation block is directed downward towards the earth's surface (see RU 2237230 - prototype). A disadvantage of the known solution is the relatively large dispersion of the GGE and the low density of the damaging field of the GGE located along the axis on one of the sides of the shell of the projectile.

The present invention seeks to remedy this drawback.

The technical solution consists in the fact that the fragmentation-beam projectile is equipped with a roll stabilization device and contains a body with an explosive charge, a bottom temporary fuse with a detonator located along the charge axis, a head cap with a head contact assembly, in front of which there is a receiver of installations, connected by electrical communication with a temporary fuse, and a fragmentation unit made with deviation from axial symmetry relative to the axis of the projectile and having a contact surface with an explosive charge wherein the roll stabilization device is configured to provide projectile flight, in which the normal to the contact surface of the explosive charge with the fragmentation block is directed downward toward the earth's surface. The fragmentation block is placed between the explosive charge and the head cap, and the contact surface of the explosive charge with the fragmentation block is inclined to the longitudinal axis of the projectile, while an explosive insert is installed in the explosive charge with the possibility of a normal detonation front falling on the contact surface of the fragmentation block with the explosive charge substances.

In the projectile fragmentation unit is compactly located in its front part, and the non-conductive insert is located in the explosive in front of the detonator detonator. As a result of this solution, the detonation front envelopes the insert, which ensures its normal incidence on the contact surface of the explosive with a fragmentation block and an increase in the speed of throwing of damaging elements, for example, GGE.

Roll stabilization devices are known, described in the literature, and are widely used in guided missile designs. With regard to the artillery shell, the roll control is used in the construction of a 120 mm XM 943 STAFF tank bomber shell of the American company Alliance Technologies. The stabilization device includes sensors for the angular position of the projectile (gyroscope, optical sky-to-ground sensor, radar sensor, etc.) and actuators (aerodynamic telescopic planes).

The invention is illustrated using the drawings.

Figure 1 - projection of the projectile for a smooth-bore tank gun (normal diagram); figure 2, 3 - examples of the execution of the fragmentation block; figure 4 - configuration options fragmentation blocks; figure 5 - types of action of the projectile.

The projectile for a smoothbore tank gun (Fig. 1) with aerodynamic control along the roll is made according to the normal aerodynamic scheme (wings in front, rudders at the rear). The projectile contains a housing 1 and a head cap 2. In the rear of the housing there is a control compartment 3 (autopilot) with extendable rudders 4, a temporary fuse 5 with a detonator 6, a charge of explosive 7 in the front of the housing with an explosion-proof insert 8 forming a detonation front, and a fragmentation block 9 made of GGE. In this case, the fragmentation block is made in the form of a truncated round cylinder.

In the middle part of the body there are expanding wings 10. The wings are made, for example, in the form of elastic planes pressed against the body and unbent after the projectile leaves the barrel. Wings of this type are used, for example, in ATGM “Kornet-E”. In the head part of the cap 2 are the receiver of the installations 11 and the head contact assembly 12, which are connected by electrical connection with the temporary fuse 5 (not shown in FIG. 1). Wings and rudders are shown in the open position.

Figure 2, 3 shows examples of structural circuits for pairing a fragmentation unit with an explosive charge. In the circuit shown in figure 2, the explosive charge is in contact with the fragmentation unit through a diaphragm 13, supported by an annular ledge of the housing 14. Moreover, the part of the wall 15 adjacent to the high side has a reduced thickness. In the diagram of figure 3, the diaphragm is equipped with a system of ribs 16 and 17.

In the case of location in the body (Fig. 1, Fig. 4a, b, c), the fragmentation block represents a body bounded by a circular cylindrical surface and planes normal to a plane passing through the axis of the cylindrical surface. In the particular case, the block may occupy part of the volume of the head cap (Fig. 4d, d, e).

Finished damaging elements of the fragmentation block can be made of steel or heavy alloys based on tungsten. It is advisable to fabricate the GGE in a form that ensures their tight packing, for example, in the form of a cube or a hexagonal prism. 1 ... 4 conventionally shown GGE spherical shape.

Before firing through the command receiver in a contact or non-contact manner, the installation is set to the type of action, and when using a temporary fuse, also the flight time of the projectile before rupture (the installation time step and the standard deviation of the flight time of not more than 0.005 s.).

The projectile is multifunctional and, depending on the introduced installation, has the following types of actions (figure 5):

a - target hit on the surface of the earth by the axial flow of the GGE during the flight of the projectile approximately parallel to the surface of the earth and the projectile rupture at a predicted point;

b - damage to the air target by the axial flow of the GGE;

c - defeat of a ground target in a trench, embankment, on a reverse slope when a circular field of shell fragments breaks over a target;

g - target defeat on the surface of the earth during an impact gap by a circular field of fragments of the hull.

After the projectile leaves the bore, the wings and rudders open and the roll stabilized flight mode is set, while the normal to the explosive plane — the fragmentation block is located in a vertical plane passing through the projectile trajectory and is directed downward. This ensures that the flow of GGE or fragments of the hull is directed towards the target.

When the projectile approaches the detonation point, the bottom temporary fuse causes an explosive charge to be detonated. In the projectile according to the scheme of figure 1, the detonation front envelopes the insert, which ensures its normal incidence on the contact surface of the explosive - fragmentation block and an increase in the speed of throwing GGE.

One of the problems arising due to the axial asymmetry of the fragmentation block is associated with high pressure on the explosive contact surface — the block (especially in the lower part of this surface) that occurs at the time of the shot. This pressure can be reduced through the use of a diaphragm based on an annular ledge of the housing (figure 2). In this case, a decrease in the wall thickness adjacent to the high side of the block is a useful factor contributing to the stable formation of a directed GGE flow. The possible deflection of the walls to the outside under the influence of lateral pressure of the GGE at the time of the shot can be reduced using a system of ribs (figure 3).

Claims (4)

1. A fragmentation-beam projectile equipped with a roll stabilization device and comprising a body with an explosive charge, a bottom temporary fuse with a detonator located along the charge axis, a head cap with a head contact assembly, in front of which there is an installation receiver connected by electrical communication with temporary fuse, and fragmentation unit made with a deviation from axial symmetry relative to the axis of the projectile and having a contact surface with an explosive charge, while the stabilization device The roll is configured to ensure projectile flight, in which the normal to the contact surface of the explosive charge with the fragmentation block is directed downward toward the earth's surface, characterized in that the fragmentation block is placed between the explosive charge and the head cap, and the contact surface of the explosive charge with a fragmentation unit is inclined to the longitudinal axis of the projectile, while an explosive insert is installed in the explosive charge, with the possibility of ensuring normal ix detonation front to the contact surface fragmentation unit with an explosive charge. 2. The projectile according to claim 1, characterized in that the fragmentation unit is made in the form of a set of finished striking elements made of steel or heavy alloys based on tungsten. 3. The projectile according to claim 2, characterized in that the finished striking elements are made in a shape that ensures their tight packing, for example, in the form of a cube or a hexagonal prism. 4. The projectile according to claim 1, characterized in that part of the fragmentation unit is located in the internal volume of the head cap.

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