RU2252391C1 - Ammunition - Google Patents

Abstract

FIELD: fragmentation ammunition of various application.

SUBSTANCE: nowadays fragmentation ammunition is known that has an envelope with cuts for uniform crushing into fragments, or contains a great number of separate injurious components located in the ammunition body. The given ammunition is complicated in design, labor-consuming, features insufficient efficiency of action at the target. The ammunition has a body, blasting charge of explosive, the blasting charge is made is the form of a cylinder consisting of separate components in the form of segments, each charge segment has a thin-walled envelope, manufactured by way of rolling of a round billet filled by a powdered high-power explosive, located inside rings or spiral of elongated hollow charges, each ring is located at a strictly definite distance from one another calculated by formula: l₁=l/k, where l₁ - the distance between the hollow charge grooves, mm, and l is the width of the envelope component obtained at its rupture; the inside diameter of the rings coincides with the inside diameter of the charge; k - coefficient depending on the material properties and the shape of the hollow charge groove besides, the space between the circular elongated shaped charges is filled with ready-made injurious components.

EFFECT: enhanced efficiency of ammunition fragmentation action, simplified procedure of ammunition manufacture.

2 cl, 1 dwg, 1 tbl

Description

The invention relates to fragmentation ammunition for various purposes.

At present, fragmentation munitions are known which have a shell with a notch for uniform fragmentation into fragments or contain many individual striking elements located in the munition body.

As an analogue of the proposed technical solution, an ammunition was selected containing a body with an easily destructible lid and a combat substance, which consists of a set of segments, which are a combination of a cumulative charge and a damaging compound [1]. With this combination, the cumulative charge is designed to create a shock jet and transfer by it the most direct influence of thermal and kinetic energy to the striking compound.

This design of the munition is not fragmentation munition and has a low efficiency at the target.

As a prototype of the selected fragmentation ammunition, which contains a housing and explosive charge. Between the body and the charge placed striking elements of a cylindrical shape, the axes of which are parallel to the axis of the munition. The striking elements are made with a ratio of length to diameter equal to 1.25 ... 2.0 [2].

The disadvantage of this technical solution is the difficulty in manufacturing and low efficiency at the target, the use of explosives of small and medium power.

The technical result of the invention is to increase the efficiency of fragmentation of ammunition, simplifying the technology of its manufacture.

The technical result is achieved by the fact that the munition contains a shell, explosive explosive charge, explosive charge is made in the form of a cylinder consisting of separate elements in the form of segments, each charge segment having a thin-walled shell made by rolling a tube stock filled with powdered powerful explosive , placed inside rings or spirals, of elongated cumulative charges, each ring is located at a strictly defined distance from each other, calculated by the formula:

where l ₁ is the distance between the cumulative grooves, mm, and l is the width of the shell element obtained when it breaks; the inner diameter of the rings coincides with the outer diameter of the charge, k is a coefficient depending on the properties of the material and the shape of the cumulative groove, in addition, the space between the annular elongated cumulative charges is filled with ready-made damaging elements.

The drawing shows a fragmentation of ammunition, which contains a housing 5, in which the assembly charge is placed, in the form of four peripheral elements in the shells, in the form of segments (1) and two central elements in the form of segments (2) with shells loaded with powerful explosives and together forming a cylindrical body. On the surface of the charge there are annular elongated charges (UKZ) (3) with cumulative grooves facing the shell of the munition.

The use of ring UKZ allows eliminating shortcomings directly related to the technological features of the rolling process. When using transverse cumulative grooves on a charge composed of four peripheral segments, in the places of their longitudinal joints, an area is formed that does not allow the shell to be divided in the transverse direction. The use of ring UKZs placed in a certain way on the surface of a cylindrical charge eliminates this drawback and allows them to achieve higher quality and, as a consequence, the efficiency of shell separation.

The experimental data for determining the dependence of the distance between the annular elements (l ₁ ) and the width of the shell element (l) are presented in the table below.

Table l ₁ mm 10.99 12.09 13.19 14.29 15.38 16,48 17.58 18.68 19.78 20.88 21.98 l mm 10.00 11.00 12.00 13.00 14.00 15.00 16.00 17.00 18.00 19.00 20.00

Based on the data obtained, the analytical dependence

l ₁ = l / k,

where l ₁ is the distance between the ring elements of the UKZ;

l is the width of the shell element;

k is a coefficient depending on the properties of the material and the shape of the cumulative groove.

The use of ring UKZs will make it possible to increase the number of fragments with the required mass and size characteristics by 1.3 times in comparison with charges having cumulative grooves directly on the surface of the explosive charge.

The proposed design of the charge allows you to adjust the fragmentation field, the dispersion of the profile elements and, accordingly, the effectiveness of the action on the target. Moreover, to achieve it, shells made of plastic steels are used. This reduces the cost of using special steels for ammunition, additional processing of fragmentation shells for semi-finished PE, the use of ready-made striking elements.

Sources of information

1. RF patent No. 2203474 C2 application No. 98118593/02 from 12.10.1998, IPC ⁶ F 42 B 12/20, Ammunition. Publ. 06/27/2000, bull. Number 18.

2. RF patent No. 2160881 C2, application No. 4516909/02 dated 06.1989, publication date 12/20/2000 IPC ⁷ F 42 B 12/58.

Claims (2)

1. Ammunition containing a housing, explosive explosive charge, characterized in that the explosive charge is made in the form of a cylinder consisting of individual elements in the form of segments, each charge segment having a thin-walled shell, made by rolling a tube stock filled with a powerful powder explosive , and placed inside rings or spirals of elongated cumulative charges, each ring or coil of a spiral is located at a strictly defined distance from each other, calculated by the formula

where l ₁ - the distance between the cumulative grooves, mm; l is the width of the shell element obtained by breaking it; k is a coefficient depending on the properties of the material and the shape of the cumulative groove, the inner diameter of the rings coincides with the outer diameter of the charge. 2. The ammunition according to claim 1, characterized in that the space between the annular elements is filled with finished striking elements.