RU2242705C1 - Fuse for the main charge of tandem ammunition - Google Patents

Abstract

FIELD: military equipment, in particular, fuses of the tandem-type ammunition, in which the main charge is blasted with a little delay after operation of the precharge, if a piercing is formed in the obstacle sufficient for penetration of the main charge through the obstacle, otherwise, the main charge is blasted at its impact at the obstacle, which is more effective for behind-the-obstacle action.

SUBSTANCE: the fuse functions according to one of the circuits mentioned below. The fuse for the main charge of a tandem ammunition has safety-cocking circuits, firing circuit with a pricking detonating cap located in a spring-loaded slide, and a pricking mechanism of the detonating cap with a central firing pin and an inertia body. The operating circuit with a preset delay includes the central firing pin installed for retainment of the spring-loaded slide against cocking and axial motion in the inertia body, pyrotechnical pressing located under the central firing pin, latch installed on the inertia body for locking of the central firing pin by it, side pin and a side pricking detonating cap installed for return motion of the inertia body with the central pin locked in it, pyrotechnical pressing-retarder and a beam detonating cap installed for operating motion of the inertia body, and the circuit of impact operation includes a central pin locked in the inertia body.

EFFECT: enhanced efficiency of fuse action.

3 dwg

Description

The invention relates to military equipment, namely to munition fuses.

Known fuses for ammunition of a tandem type / 1-3 /, in which to increase the effectiveness of the fuse of the main warhead fires with a given deceleration after the front cumulative charge (precharge), designed for preliminary penetration of the side armor of lightly armored vehicles, brick, concrete and other obstacles . If the obstacle turns out to be more durable and the front cumulative charge does not penetrate it or only a small hole is formed in it, which is not sufficient for the main charge to penetrate unhindered, then the latter may collapse upon impact on the obstacle without any effect, or its operation with a long delay in this case will be ineffective.

The problem solved by the invention is to increase the efficiency of the tandem ammunition due to the selective action of the main charge fuse, depending on the results of work on the front of the cumulative charge. The solution to this problem is achieved by the presence in the fuse of the main charge of two operation circuits, one with a predetermined time delay, works when the main charge freely crosses the destroyed obstacle, and the second circuit - shock action, it works if the main charge meets an undamaged obstacle. The present invention, by the presence of a safety-cocking chain, as well as the execution of the fire chain and the shock response circuit, has the largest set of similar features with purely inertial shock fuses / 4, 5 /, the last of which we have chosen as a prototype.

The proposed fuse, as well as the prototype, contains safety cocking chains, a fire chain with a detonator type detonator capsule, which is located in a spring-loaded engine, and a detonator capsule pricking mechanism with a central sting and an inertial body. The proposed fuse is characterized in that it is made with the possibility of selective action either along the actuation circuit with a predetermined delay when the main charge unhindered crosses the obstacle destroyed by a precharge, or along the shock circuit when the main charge meets an undamaged obstacle.

The fuse also differs in that its actuation circuit with a predetermined delay includes a central sting installed to hold the spring-loaded engine from cocking and axial movement in the inertial body before cocking, a pyrotechnic press-in located under the central sting, a latch mounted on the inertial body with the possibility of locking it with a central sting, a side sting and a side capsule, mounted with the possibility of return movement of the inertial body with the center locked in it nym sting pyrotechnic retarder and pressing-beam cap mounted to the working movement of the inertial body.

The fuse is also distinguished by the fact that its shock response circuit includes a central sting locked in an inertial body.

Figure 1 shows an axial section of the fuse, figure 2 is a section along AA, and figure 3 is a section BB along the axis of the side sting.

The fuse contains (figure 1) the sleeve 1 and the inertial body 2, in which all the main parts and components of the fuse, including its safety-cocking circuit, are placed. The fuse chain of the fuse contains the main detonator 3 and the detonator capsule 4. The main element of the mechanism for activating the detonator capsule 4 is the central sting 5 mounted in the inertial body 2. The detonator capsule 4 is located in the engine 6 and is offset from the central axis in the service position, and spring 7 is intended for translating it into a combat position. The central sting 5 in its official position rests on the pyrotechnic press-fitting 8, which keeps it from axial movement in the inertial body 2. In the official position, the engine 6, along with the sting 5, it is restrained from being cocked by the pyrotechnic stop of the long cock, which includes the stop 9, the pyrotechnic press-in 10, the spring 11, the cap 12 and the sleeve 13. In the inertial body 2 there is an ignition mechanism. It is made in the form of an igniter capsule 14, a counter-safety spring 15 and a tip 16. The cocking circuit and the actuation circuit with a predetermined delay include a side sting 17 (Fig. 3), a side capsule 18, a pyrotechnic retarder 19 and a beam capsule 20 Both capsules with a pyrotechnic press-on retarder are placed in the sleeve 21. A latch 22 is installed on the inertial body 2, which is capable of locking the central sting 5 by performing the latter, for example, stepwise. The latch 22 is made in the form of a leaf spring mounted on an inertial body 2 using pins 23 (figure 2). The support ring 24 is used to mount the pyrotechnic distant cocking stopper in the sleeve 1. The housing sleeve 25 and the nut 26 are designed to secure all fuse assemblies.

The fuse works as follows. When firing from overloads acting on the fuse, the capsule igniter 14, overcoming the resistance of the spring 15, impinges on the tip 16. From the actuation of the capsule 14, the pyrotechnic press 8 in the inertial body 2 and the pyrotechnic press 10 of the long-range cocking unit are ignited. After the pyrotechnic press-fit 10 of the long-range cocking unit burns out, its stopper 9 is lowered, and the engine 6 with the detonator capsule 4 is held in the uninjured position by the central sting 5. On the flight of the munition, the pyrotechnic press-in 8, which previously prevented the inertial body 2 from moving toward the sleeve 1, is burned out. , and the inertial body is prevented from such movement only by the friction of the spring latch 22 on the side surface of the central sting 5. When the tandem ordnance is used at the target, t precharge operation. In the fuse of the main charge from the arising overloads, the inertial body 2 moves towards the sleeve 1. At the same time, the latch 22, moving to the smaller diameter of the central step tip 5, stops it in the inertial body 2, preventing its reverse movement. Next, the lateral sting 17 causes the capsule 18 to be ignited, which ignites the pyrotechnic press-on retarder 19 and at the same time carries out the return movement of the inertial body 2. In this case, the central sting 5, being locked by the latch 22 in the inertial body 2, is pulled out of engagement with the engine 6 and it is under the action spring 7 is transferred to the combat position. When the obstacle is completely destroyed by a precharge and the main charge crosses it unhindered, the action of the fuse occurs along the actuation circuit with a given delay. The pyrotechnic press-fitting 19, fading with a given delay, activates the radiation capsule 20, which pushes the inertial body 2 with the tip 5 in the working direction, which leads to the pricking of the tip and the detonator capsule 4. If the obstacle is not completely destroyed by a precharge and the main charge strikes into it, then the action of the fuse occurs along the chain of shock operation, while the inertial body 2 with the sting 5 locked in it moves towards the detonator capsule 4 and causes it to fire. The increased efficiency of the operation of the main charge on the obstacle, even without its complete destruction, is provided due to wave breakaways arising from the back of the obstacle.

Thus, due to the selective action of the main charge fuse, the overall effectiveness of the action of the tandem type of ammunition is increased. The use in the design of the fuse of tried and tested by long practice chains and mechanisms, components and assemblies ensures its high reliability.

Sources of information

1. US patent No. 5309843, cl. USA 102-476, MKI F 42 B 12/16, 1994

2. German patent No. 2900802, class. MKI F 42 B 12/10, 1990. Translation into Russian language ISM issue 81, MKI F42 No. 5, 1991, p. 9.

3. US Patent No. 5.198.615, cl. USA 102-476, 1993 Translation into Russian language ISM issue 81, MKI F 42 No. 1, 1995, p. 13.

4. Application of Germany No. DE 4335022 A1, cl. F 42 c 1/04, 1993 Transfer to Russian language ISM issue 81, MKI F 42 No. 12, 1996

5. RF patent No. 2125706 C1, F 42 C 1/06.

Claims (1)

The fuse for the main charge of the tandem ammunition containing safety cocking chains, a fire chain with a detonator type detonator capsule located in a spring-loaded engine, and a detonator capsule pricking mechanism with a central sting and an inertial body, characterized in that it is made with the possibility of selective action either along the actuation circuit with a predetermined delay when the main charge unhindered crosses the destroyed obstacle, or along the shock circuit when the main charge meets the undamaged obstacle In addition, its operation circuit with a predetermined delay includes a central sting installed to hold the spring-loaded engine from cocking and axial movement in the inertial body, a pyrotechnic press-in located under the central sting, a latch mounted on the inertial body with the possibility of locking it by the central a sting, a lateral sting and a lateral floor capsule installed with the possibility of return movement of the inertial body with a central sting locked in it, pyrotechnic for a retarder and a radiation capsule installed with the possibility of working movement of the inertial body, and the shock circuit includes a central sting locked in the inertial body.

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