RU2351885C1 - Armour-piercing shell - Google Patents

Abstract

FIELD: weapons and ammunition.

SUBSTANCE: proposed shell incorporates armour-piercing tip arranged inside ballistic cone before kinetic-effect explosive with a tapered front part. The said armour-piercing tip represents pipes interconnected by loose partitions.

EFFECT: increased effect of piercing inclined armoured sheets.

3 cl, 2 dwg

Description

The present invention relates to military equipment, in particular to devices for penetrating armor with shells with a sub-caliber armor-piercing core, and can be used in the construction of small-sized missile systems.

Known armor-piercing projectile, selected as a prototype, containing a durable body - the main warhead of the kinetic action with a conical front part, on which is mounted a solid armor-piercing tip of softer than the main warhead material, designed to protect the main warhead from destruction at the initial moment penetration, a ballistic tip is installed in front of the armor-piercing tip (armor-piercing shell, "Artillery and Missiles", military publishing house of the USSR Ministry of Defense, Mosk and - 1968, p.128). The effectiveness of the armor-piercing tip is determined by its thickness, which is limited by the external contours of the projectile, affecting its ballistics, and by the mass, which is also limited, since its increase affects the initial velocity of the projectile.

The disadvantage of this device is that for shells of large elongation with a warhead of kinetic action having a large lateral load (kg / mm ² ), such an armor-piercing tip is ineffective, as it will be pierced due to the small relative thickness. In addition, when the projectile approaches the armor at an angle, the armor-piercing tip acts as a lubricant and contributes to the sliding of the projectile on the surface of the armor and its rebound.

The objective of the present invention is the creation of effective armor-piercing shells of large elongation with the possibility of breaking through inclined armor.

The solution to this problem lies in the fact that in the known armor-piercing projectile containing a warhead of kinetic action with a conical front part, the armor-piercing tip and ballistic fairing, the armor-piercing tip is made in the form of tubes interconnected by weakened jumpers, and is located inside the ballistic fairing in front of the warhead , inside the armor-piercing tip there is a sleeve made of a material with a higher ductility than that of the material of the tip, mainly copper.

The technical result of the invention is that the impact load acting on the warhead of the projectile when meeting with the armor is reduced by squeezing the plastic sleeve out of a more durable tube and the penetration efficiency of inclined armor is increased by reducing the approach angle of the warhead caused by torque, appearing when breaking off as a result of ricochet along the weakened jumpers of the armor-piercing tip tube.

Figure 1, 2, 3 shows the design and principle of operation of the armor-piercing projectile at zero angle of the projectile approach to the armor, Figures 4, 5, 6 when the projectile approaches the armor at an angle, where:

1 - warhead kinetic action;

2 - tube armor-piercing tip;

3 - sleeve;

4 - tube armor-piercing tip;

5 - ballistic fairing;

6 - armor;

7 - weakened jumpers;

8 - lowering jumpers

The device and principle of operation of the armor-piercing projectile is as follows:

An armor-piercing projectile consists of a warhead of kinetic action [1], the front of which has a conical shape. From the front end side, the armor-piercing tip tubes [2, 4] are installed on the warhead, telescopically connected by jumpers [7], weakened by debases [8]. Inside the tip, in front of the warhead, a sleeve [3] of material with a higher ductility than that of the tube material is installed. The tip is placed inside the ballistic fairing [5] (figure 1).

With a frontal impact on the armor [6], the ballistic fairing opens and collapses as a result of forward displacement of the warhead along with the tip.

When the tip stops (figure 2), the plastic properties of the sleeve increase due to the transfer of part of its kinetic energy to internal thermal energy. Further movement of the warhead leads to extrusion of the plastic sleeve between the outer wall of the housing and the inner wall of the handpiece tube (Fig. 3). In this case, due to the extrusion of the material of the sleeve during the passage of the warhead of the projectile through the tip, the shock load on the body decreases when it meets the armor, and the extruded plastic material acts as a lubricant when the body passes through the tip tube.

When the projectile hits the armor at an angle α (Fig. 4), the front part of the ballistic fairing and the first tip tube under the action of the force Fp arising from the rebound are pulled upward, while the tip breaks in the zone of active deformation formed by weakened bridge wires (Fig. 4). 5). Further movement of the projectile will cause the front tube of the tip and ballistic fairing to become stuck in the outer layers of the armor, while it rotates relative to the point of stop in the armor under the action of the moment Мвр1. As a result of a turn, the front tube acts on the front of the next tube of the armor-piercing tip with a force Fп, causing the projectile to receive a torque Мвр2 relative to the center of mass and rotate it through the angle Δα. The rotation of the projectile will lead to a decrease in the approach angle of the warhead to the armor and, consequently, to a decrease in the thickness of the pierced armor by ΔB (Fig. 6). After hitting the remainder of the armor-piercing tip against the armor, a plastic tube is extruded, similar to that described in the case of frontal impact.

Thus, the invention provides:

- the performance of armor-piercing shells of large elongation by protecting the shell from destruction at the initial moment of penetration of the armor;

- penetration of inclined armor by reducing the angle of approach of the projectile to the armor caused by the torque that occurs when breaking off the armor-piercing tip.

Claims (3)

1. Armor-piercing projectile containing a warhead of kinetic action with a conical front part, armor-piercing tip and ballistic fairing, characterized in that the armor-piercing tip is made in the form of tubes with weakened jumpers and is located inside the ballistic fairing in front of the warhead. 2. The projectile according to claim 1, characterized in that a sleeve is installed inside the armor-piercing tip made of a material with a higher ductility than the material of the armor-piercing tip. 3. The projectile according to claim 2, characterized in that the sleeve is made of copper.

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