BG3912U1 - Frontal impact fuse with reaction-inertion action and long-range arming - Google Patents

Abstract

The utility model relates to a frontal impact fuse with reaction-inertion action and long-range arming, which ensures immediate activation of the bursting charge of the ammunition, when the ammunition meets the barrier, as well as at the same time increases the safe distance in the initial section of the trajectory of the ammunition as it leaves the barrel of the gun or grenade launcher. It consists of a casing (1), in the front part of which is mounted a membrane (17), above which is fixedly attached a protective cover (18), as in the upper part of the casing (1) is formed a safety mechanism, containing an inertia striker (2) with a central opening, in which is arranged the reaction striker (3).

Description

Field of technology

The utility model refers to a frontal detonator with reaction-inertial action and long-range erection, which is used in military equipment, in particular for the assembly of smoothbore artillery and mortar shots in combat and training shootings. The frontal detonator is used to detonate fragmentation and high-explosive mines and projectiles that are part of the shots.

BACKGROUND OF THE INVENTION

An explosive device O-4M with a pneumatic mechanism for long-distance erection is known, which consists of a front sleeve in which an inertial safety mechanism is placed. Characteristic of this design is that the percussion of the inertial safety mechanism consists of a wire and an obturator, which is a piston of a pneumatic mechanism, and the front sleeve has the function of a cylinder of the pneumatic mechanism for erection of the detonator. A membrane and a pressure cap are mounted in the front part of said front sleeve, which provide sealing of the detonating device and at the same time create the necessary overpressure in the pneumatic mechanism. A detonator cup or a body with a detonator cup in which an explosive press is located is fixed in the rear part of the front sleeve.

The described construction of the detonator has shortcomings, which are expressed in technological and technical difficulties in the manufacture, assembly and adjustment of the detonator. Setting the time for long-distance erection requires careful selection of the clearance between the front sleeve and the cable obturator, which makes it necessary to manufacture these elements with a high class of accuracy, as well as their precise measurement and division into selective groups.

The front sleeve is made of high-strength steel alloy with a subsequent galvanic metal coating, in which it is impossible to increase the accuracy of the hole in which the shutter moves.

Another disadvantage of the famous fuse is the low height of safe fall - up to 2.5 tons.

Known mechanical fuse RU 2228513 C1, consisting of a housing in which are located a piercing mechanism consisting of a wire and a capsule-igniter, actuating the pyrotechnic stopper of the mechanism for long-distance erection and pyrotechnic pressing of the self-winding mechanism, as well as an impact inertia-reaction mechanism mounted in the front of the detonator, which generates the primary impulse for initiating a detonator capsule mounted in a movable gate barrier, whereby in an unrestrained position it is displaced relative to the central axis of the detonator.

The described design of the detonator ensures reliable operation of ammunition that has significant, high accelerations and the presence of rotational motion during firing, ie ammunition used for rifled rifle and gun systems.

Known mechanical artillery fuse RU 2397436 C1, consisting of a housing in which are located a reaction striker with a cord, an inertial striker with a capsule-igniter, the main

BG 3912 UI protective sleeve, main safety spring, upper restraining ball, main locking balls, enclosed in the housing by a membrane covered by a protective cover.

The described construction of the detonator has a small lower limit of long erection or absence of one, which determines the safety of the detonator, respectively of the ammunition when fired, and also has a low height of safe fall of about 1.5 tons.

Technical essence of the utility model

The task of the utility model is to create a frontal fuse is a reaction-inertial action and long-range erection, which is reliable and effective when firing ammunition with significantly low accelerations and no rotational movement during firing, to be characterized by increased safety distance in the initial section of the trajectory of the ammunition when it takes off from the barrel of the cannon or mortar, as well as to have a large safe height of falling ammunition.

The problem is solved with a frontal percussion fuse with reaction-inertial action, which consists of a housing in which is located a reaction-inertial mechanism mounted in the front of the fuse and including a reaction percussion and inertial percussion with an igniter capsule, a mechanism for long-distance cocking, safety springs, restraining ball, locking elements, diaphragm and safety cap.

According to the utility model, a membrane is mounted in the front part of the housing, above which a protective cover is fixedly fixed to the upper part of the housing, in which a protective mechanism containing an inertial striker is formed, with a central opening in which the reaction striker is located. the safety mechanism also contains an inertial stopper with a spring, placed in a longitudinal hole, formed in the inertial hammer and displaced parallel to its axis, and in the lower part of the housing a fixed detonator cup with a bursting press and a capsule detonator is fixed.

The reaction hammer is designed as a monolithic body, which is located in a hole in the housing, with a diameter Di, made with high accuracy, where the cylindrical part of the head of the reaction hammer is made with a diameter D with high accuracy, where: 0.007 mm <(Di -D) <0.025 mm and a length δ of 0.2.D to 0.35.D.

According to a preferred embodiment of the fuse, an inclined hole A is formed in the inertial striker, in which a ball locking the reaction striker is placed.

The spring of the inertial stopper is located in a longitudinal hole "B", made in the inertial hammer, where the hole "B" is displaced parallel to the axis "C" of the inertial hammer.

A capsule carrier is mounted in the inertial hammer, in which a highly sensitive prick-type capsule detonator is located.

Preferably, the body of the frontal fuse is made of high-strength aluminum alloy.

The frontal impact fuse, the object of the utility model, has a reliable construction and can be effectively used in the construction of fragmentation and high-explosive mines and projectiles, stabilized with operative stabilizers with low rotation speed during their flight and fired by smoothbore artillery. and mortar systems.

BG 3912 UI

The proposed front fuse allows easy provision of the set time for long-distance erection thanks to the provided high-precision diameter in the head of the reaction hammer, acting as a piston of a pneumatic mechanism and the diameter of the hull opening also with high precision, acting as a pneumatic cylinder. mechanism. The constructive design of the frontal impact binder ensures instantaneous activation of the explosive charge of the ammunition in case of an encounter with a barrier.

Explanation of the attached figures

Further in the description is presented an exemplary embodiment of the frontal detonator according to the utility model, which is illustrated by means of the drawings accompanying the description, where:

Figure 1 is a general view of the mechanisms of the fuse in official circulation first view;

Figure 1a - general view of the mechanisms of the detonator in official circulation second view;

Figure 1b is a cross-section along V-V of Figure 1;

Figure 1c is a top view M of Figure 1;

Figure 1d - axinometric view of a protective cover;

Figure 1 e - section K-K;

Figure 1 is a magnification P of Figure 1;

Figure 2 - General view of the mechanisms of the detonator when firing the first view;

Figure 2a - cross section along V-V;

Figure 26 - increase P from figure 2;

Figure 2c - General view of the mechanisms of the detonator when firing a second view;

Figure 3 - General view of the mechanisms of the detonator along the flight path of the ammunition first view;

Figure 3a is a cross-section along V-V of Figure 3;

Figure 36 is a general view of the fuse mechanisms along the flight path of the second view ammunition;

Figure 4 - General view of the mechanisms of the detonator when the ammunition meets the target.

Exemplary implementation of the utility model

The frontal impact fuse with reaction-inertial action and remote erection (Fig. 1) consists of a housing 1, in which are located a safety mechanism "I", containing an inertial striker 2, in which a reaction striker 3 is mounted, together with a cup 4 and spring of the striker 5 arranged so that the reaction striker 3 is locked by means of a fixing element 6, preferably a spherical element 6 (ball), placed in an inclined hole "A" formed in the inertial striker 2. The described mutual arrangement of the inertial striker 2 and the fixing ball 6 impedes the movement of the reaction striker 3.

The safety mechanism "I" comprises an inertia stopper 7 with a spring of the stopper 8 mounted in it, located in a longitudinal hole "B" made in the inertial hammer 2, where the hole "B" is displaced parallel to the axis "C" of the inertial hammer 2 , in which case the inertial stopper 7 does not

The BG 3912 UI allows the ball 6 locking the reaction striker 3 to fall when it is unlocked, ie when it is axially displaced.

In a longitudinally formed in the housing 1 hole "E" (Fig. 1e) is mounted a safety check 9, which passes through another longitudinally made hole "F" of the inertial striker 2, under the inertia stopper 7, thus limiting, impeding its axial movement.

Attached to the lower part of the housing 1 is a fixed (threaded) detonator cup 10 (Fig. 1a), in which are placed a rupture press 11 and a beam-type detonator capsule 12, closed with a lid 13, as the detonator cup 10 together with the lid 13 press a thrust washer 19 mounted in the housing 1.

A capsule carrier 14 is mounted in the inertial striker 2, in which a highly sensitive prick-type detonator capsule 15 is located. The capsule carrier 14 together with the spring 16 are pressed by the reaction striker 3 in the extreme left position in the holes "G" b). A membrane 17 is mounted in the front part of the housing 1, above which a fixed protective cover 18 is mounted, containing three openings “b” (Figs. 1c and 1d), located at 120 ° from each other, forming a concentrated shock -protective metal table.

Using the utility model

For the purpose of explaining the interaction of the elements of the frontal fuse, object of the utility model, further in the description we present a detailed description of the action of the frontal fuse in four different states.

In official circulation: The parts and assemblies are in a position to ensure the safety of the fuse, namely: the prick capsule detonator type 15 (Fig. 1), which is mounted in the capsule carrier 14 is displaced from the fuse axis and the C axis of the inertial drummer

With this displacement, it is not possible to initiate the beam-type detonator capsule 12 from the products of the explosion of the prick capsule-detonator type 15 in its accidental operation, and hence, accordingly, the absence of detonation of the rupture press 11.

The movement of the capsule carrier 14 in which the prick-type detonator capsule 15 is placed is prevented in official circulation by the reaction striker 3, which in turn is locked by the ball 6 placed in the inclined opening A and thus prevents the movement of the reaction striker j together with the cup 4, under the action of the spring of the striker 5 in the vertical direction along the axis C. The free movement of the ball 6 in the direction of unlocking and is limited by the inertia stopper 7, which is pressed into the base of the spring of the striker 5. spring of the stopper 8, as well as the axial movement of the inertial stopper 7 is prevented by the safety check 9, which passes under it.

When firing: Before firing, the protective check 9 (Fig. 1 and Fig. 1d) is removed, which ensures the free axial movement of the inertial stopper 7, and also the protective cover 18 is removed (Fig. 1). When firing, the ammunition, respectively the fuse, simultaneously experiences axial inertial forces, whereby the reaction striker 3 together with the cup 4 (Fig. 2) move down the axis C, overcoming the force of resistance of the spring of the striker 5, which unlocks the ball 6. In this position, the reaction striker 3 travels the distance „D (Fig. 1a) and stops its movement, remaining in this

BG 3912 UI position until the moment of inertia remains greater than or equal to the force of resistance of the striker spring 5.

At the same time, the inertial stopper 7 moves unimpeded down into the hole B, overcoming the force of resistance of the spring of the stopper 8 and after passing the distance "L (Fig. 1) releases the free movement of the ball 6, which moves through the hole A in opening B.

In this position, the movement of the capsule carrier 14 together with the prick-type detonator capsule 15 is prevented by the reaction striker 3, whereby the fuse remains safe even during the shot.

On the trajectory: After the ammunition comes out of the barrel of the weapon or shortly before the ammunition leaves the barrel of the weapon, the force of inertia of the reaction striker 3 together with the cup 4 is less than the resistance force of the striker spring 5, as a result the reaction striker 3 begins to move together with the cup 4 up the axis C, under the action of the force of the spring of the striker 5. The movement is slowed down due to the fact that in its upper part the reaction striker 3 is filled with an exact diameter, D at a distance , δ ”, which represents the piston of the pneumatic mechanism, and the opening Di of the housing 1 is its cylinder.

In this arrangement of the elements, an overpressure is formed in the space above the diameter D of the reaction drum 3, closed on the upper side of the membrane 17. The time of the delayed movement of the reaction drum 3 together with the cup 4 is determined mainly by their mass, the parameters of the spring of the drum 5 and by the mass second flow rate, which depends and is determined by the diameters D and D |

After moving the reaction striker 3 at a certain distance vertically along the axis C, it releases the fixation of the capsule carrier 14, which under the action of the mustache spring 16 moves to the extreme right position and places the prick capsule detonator 15 on the axis of the fuse or axis. C of the inertial striker 2, below the pointed end of the reaction striker 3. In this position the fuse is cocked. During the delayed erection of the detonator, the ammunition has traveled a certain distance from the muzzle of the barrel, which practically ensures the safety of the shooter.

When meeting the target: When the ammunition meets the target (Fig. 4) at meeting angles from 45 ° to 90 °, under the action of the reaction force of the barrier, the membrane 17 is deformed, as a result of which the reaction striker 3 together with the cup 4 moves, deforming the spring of the striker 5 and with its pointed end pierces at high speed the detonator capsule 15. At the same time under the action of high accelerations that occur when the speed of the ammunition drops sharply when meeting the target, the inertial striker 2 together with the capsule carrier 14 is moved (poured forward), which also deform the spring of the striker 5 and direct at high speed the capsule detonator 15 against the pointed end of the reaction striker 3. In this position the energy of the prick of the capsule detonator 15 increases sharply, accordingly, the sensitivity and speed of the detonator when meeting the target increases and as a result the fragmentation action of the ammunition increases.

When the detonator capsule 15 is activated, the detonation wave initiated by it destroys the cap 13 and the products of the explosion excite a detonation in the detonator capsule beam type 12, which initiates

The rupture press 11 and its explosive products together with the fragments of the detonator cup 10 initiate the main explosive charge of the ammunition.

Claims (7)

Claims 1. Reaction-inertial impact fuse, consisting of a housing in which a reaction-inertial mechanism is located, mounted in the front of the fuse and including a reaction striker with a cord and an inertial striker with a prick-type detonator capsule, a long-range mechanism cocking springs, safety springs, restraining ball, locking elements, membrane and protective cap, characterized in that a membrane (17) is mounted in the front part of the housing (1), above which a protective cover (18) is fixed, and so also in the upper part of the housing (1) is formed a safety mechanism (I), containing an inertial striker (2) with a central hole in which the reaction striker (3) is located, and the safety mechanism (I) also contains an inertial stop (7) with a spring of the stopper (8), placed in a longitudinal hole formed in the inertial hammer (2) and displaced parallel to its axis, and in the lower part of the housing (1) is fixed fixed detonator cup (10) with located in it explosive a press (11) and a detonator capsule (12) closed with a lid (13), the detonator cup (10) together with the lid (13) pressing a thrust washer (19) into the housing (1). Frontal impact fuse according to claim 1, characterized in that the protective cover (18) fixed in the front part of the housing (1) is made of three openings located in 120, forming a concentrated impact mass of metal along its axis. Front impact fuse according to claim 1, characterized in that the reaction hammer (3) is designed as a monolithic body placed in a hole in the housing (1), with a diameter Di, made with high accuracy, wherein the cylindrical part of the head of the reaction hammer (3) is made with a diameter D also with high accuracy, where: 0.007 mm <(Di-D) <0.025 mm and with a length δ from 0.2.D to 0.35.D. Frontal impact fuse according to claim 1, characterized in that an inclined hole A is formed in the inertial impactor (2), in which a locking ball (6) is placed. Front impact fuse according to claim 1, characterized in that the stop spring (8) and the inertia stop (7) are arranged in a longitudinal hole B made in the inertia hammer (2), wherein the hole B is offset from the axis C of the inertial striker (2). Frontal percussion fuse according to claim 1, characterized in that a capsule carrier (14) is mounted in the inertial impactor (2), in which a highly sensitive prick-type detonator capsule (15) is arranged. Frontal impact fuse according to claim 1, characterized in that the housing (1) is made of a high-strength aluminum alloy.