RU2498202C1 - Fragmentation-beam barrel projectile "tverityanka-2" with ejected throwing unit - Google Patents

Abstract

FIELD: weapons and ammunition.

SUBSTANCE: fragmentation-beam barrel projectile includes a housing with an explosive charge, a head-bottom detonating fuse, a fragmentation unit of axial action and a separating powder charge. Head-bottom detonating fuse consists of a non-contact detonating fuse in its head part and an inertia detonating fuse in its bottom part. Projectile is made of two separated breaking sections with uniform blasting. The front separated section includes a head non-contact detonating fuse and a throwing charge of axial action. Rear section includes a housing with an explosive charge and a bottom inertia detonating fuse. Head-bottom detonating fuse is equipped with a programmed blasting system of both sections.

EFFECT: improving projectile action efficiency.

7 cl, 4 dwg

Description

The invention relates to ammunition, and more specifically to fragmentation-beam mines that create two fragmentation fields: an axial field (“bundle”) of ready-made striking elements (GGE) and a circular field of fragments of natural fragmentation of the hull.

As a prototype adopted 120 mm fragmentation-beam mine HEI-L company "Rheinmetall" [1]. The mine contains a body filled with a charge of explosive (BB), in the front end of which a tungsten fragmentation plate of a given crushing is installed. The mine is equipped with a holodonic fuse, the head of which contains a non-contact fuse of the "altimeter" type and a separation powder charge, and the bottom contains an inertial fuse. When approaching the surface of the earth at a given height (approximately 17 m), the fuse gives a command to shoot the head of the mine. In this case, the mine experiences a sharp braking push, as a result of which the inertial mechanism of the bottom part of the fuse is triggered and an air explosion of the mine occurs. At the same time, the bottom initiation and the presence of a significant cylindrical part of the hull provide a declination of the fragmentation field by the Taylor angle toward the earth, which increases the likelihood of ground targets hitting.

The main disadvantage of mines is that fragments of the hull are used to destroy ground targets only to a small extent. With a practically vertical fall of the mine, the fragments of the shell fly apart in directions parallel to the surface of the earth, and at a high height of the gap, only a small fraction of the fragments reaches ground targets.

The present invention seeks to remedy this drawback. The technical solution consists in the fact that the mine is made of two separable explosive sections with simultaneous blasting of them, while the front section contains a head non-contact fuse and an axial propelling charge, and the rear section contains a body with an explosive charge and a bottom inertial fuse. Between the sections is a pyrotechnic separation charge.

The invention is illustrated by drawings: figure 1 - diagram of a mine; figure 2 is a General view of the front section; figure 3 - embodiment of the throwing unit; 4 is a diagram of the action of a mine.

Mine (figure 1) consists of two sections: the front (detachable) section 1 and the rear (main) section 2. The front section consists of a casing 3, in front of which there is a head non-contact fuse 4 of the type "altimeter" with the receiver settings, and in the rear part is a throwing unit 5. Case 3 is made of light alloys or non-metallic composite materials. The throwing block consists of a housing 6 with a charge of explosive 7, a block of ready-made striking elements (fragmentation block) 8, and an initiation unit 9. At the rear, the throwing block is equipped with feathers 10. The internal profile of the pen is closely mated to the outer surface of the head of the main section (Fig. .2). Between sections is a pyrotechnic charge separation sections 11.

The initiation unit is connected by an electric wire 12 to the head fuse and contains an igniter for the separation charge, a moderator and a detonator detonating the propelling unit.

The block of finished striking elements is made of elements made of steel or heavy alloys, including in the form that ensures their tight packing. Figure 1 conditionally shows the performance of the GGE spherical shape. The back (main) section of the mine includes a housing 13, inside which a charge of explosive 14 is located. In the bottom of the hull there is a bottom fuse 15 with an inertial safety mechanism, adjustable by a moderator and a detonator. The head and bottom fuse are electrically connected (not shown in FIG. 1). The mine’s hull can be made of high-carbon silicon steels 60С2, 80С2, 80Г2С [2-4].

Thus, the frantic fuse contains a programmable system of time-divided detonation of both sections, configured to input settings through the fuse receiver of the fuse immediately before firing.

An embodiment of the mines with the location of the head fuse in the rear of the throwing unit (Figure 3) is provided. The antenna 16 of the non-contact fuse, combined with the receiver installations, is located in front of the throwing unit.

Mina can be used with the following types of actions:

A purely fragmentation effect on ground targets with two subspecies:

1. At the first stage, the target is hit from above by the axial flow of the GGE (“beam”), at the second, by the circular field of fragments of the body with a low air gap of the main section.

2. At the first stage, the target is hit from above by the axial flow of the GGE (“beam”), at the second stage, by the circular field of fragments of the body when the main section is detonated at the moment of meeting with the ground surface.

Combined action on targets partially located on the surface of the earth, partially in underground shelters.

3. The defeat of ground targets from above is carried out by the axial flow of GGE, the defeat of buried targets by the penetrating high-explosive action of the main section.

The mortar is equipped with a mine detonation control system, which includes a rangefinder, a ballistic computer and a fuse input device. According to the determined firing range, the final mine velocity V _c and the angle of incidence Ө _{s are} determined. Then, based on these data, as well as on the type of targets and shooting conditions, the calculator calculates the optimal combination of the heights of the blasting sections of the mines H ₂ and H ₃ .

Large heights Н ₂ , Н _{3 are} necessary when shooting at group and area targets, as well as with insufficient accuracy in determining the coordinates of the target.

When firing at point targets with high accuracy in determining their location, small heights H ₂ , H _{3 are used} .

The flight path S ₂ is determined by the ratio

The bottom fuse deceleration time t _{2 is} defined as

The length of the flight path S ₁ is determined from the condition that the sections diverge at a distance l. The time t ₁ required for this is defined as l / V _n (V _n is the velocity of the front section relative to the rear), whence

Time t ₁ it is advisable to set a fixed value. Section separation height H ₁ is defined as

H ₁ = H ₂ + S ₁ sinӨ _c .

The necessary time for deceleration of the bottom fuse is determined by the ratio

Thus, the values of H ₁ and t ₂ must be entered into the fuse before firing. The value of H _{1 is} provided by the lead fuse, and the value of t ₂ is provided by the bottom.

When the mines fall in the target area at an altitude of H ₁ , a non-contact fuse is triggered, the pyrotechnic charge of the ignition is ignited, and the front section of the mine is fired (Fig. 4a). The main section experiences a push back, perceived by the inertial mechanism of the bottom fuse, which removes the protection of undermining the main section. At the same time, the propellant block detonator starts.

The front section begins to move away from the rear section. Its correct orientation on the flight is ensured by the aerodynamic stabilization of the flight with feathers 10. After a period of time that ensures the removal of the front section from the rear by a distance l (l = 300 ... 400 mm), which ensures the safety of the rear section when undermining the missile unit, this undermining the height of H ₂ with the formation of the downward directed axial flow of the GGE ("beam") (figb). Allowed the loss of part of the GGE when they collide with the body and fuse of the front section.

The main section continues to move to the ground and after the moderator is blown up by a bottom fuse at a height of H ₃ (Fig.4c) (C - target). When the fuse is set to action according to subspecies 2 in the second stage, the main section of the mine reaches the surface of the earth and is undermined by the inertial shock mechanism of the bottom fuse.

When the fuse is set to action according to type 3 in the second stage, the main section flies to the surface of the earth, penetrates the soil to the desired depth and is detonated by a bottom inertial fuse, providing a high-explosive mine action (destruction of underground structures like D3OT, blockage of trenches, etc.).

The execution of the mines according to the variant of FIG. 3 provides an unhindered passage of the GGE block forward, a minimum loss of GGE and a more uniform distribution of the GGE in the flow section (“beam”).

The technical result of the invention is improving the effectiveness of mines.

Literature

1. Odintsov V.A. Fragmentation-beam shells // Defense technology. 2006. - No. 1-2. (fig. 2).

2. RU 2095740.

3. RU 2153024.

4. RU 2368691.

Claims (7)

1. A fragmentation-beam receiver mine with a firing throwing unit, comprising a body with a charge of explosive, a frantic fuse with a non-contact fuse in its head and an inertial fuse in its bottom, a fragmentation axial-action unit and a separation powder charge, characterized in that the mine made of two separable explosive sections with their simultaneous detonation, while the front detachable section contains a head non-contact fuse and an axial propelling charge, and the rear one The projection contains a housing with an explosive charge and an inertial bottom fuse, while the frantic fuse is equipped with a programmable blasting system for both sections. 2. Mine according to claim 1, characterized in that the propellant charge of the detachable front section consists of a housing with an explosive charge located on the front end of the housing of the ready-made striking elements block, and an initiation unit containing an igniter of the separation powder charge and a detonator for detonating the block itself. 3. Mine according to claim 1, characterized in that the bottom fuse contains a safety mechanism, an adjustable retarder and a detonator, while the bottom fuse is connected to the head fuse by electrical communication. 4. The mine according to claim 1, characterized in that the smoky fuse contains a programmable time-divided system of detonating both sections, configured to input settings through the head fuse command receiver immediately before firing. 5. Mine according to claim 1, characterized in that the front section housing is made of light alloys or non-metallic composite materials. 6. Mine according to claim 1, characterized in that the block of finished striking elements is made of elements made of steel or heavy alloys, including in the form that ensures their tight packing. 7. Mine according to claim 1, characterized in that the fragmentation case of the rear section is made of high carbon silicon steels 60C2, 80C2, 80G2S.

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