RU2775499C2 - Attachment and separation unit of braking and stabilization system (bss) of warhead of unmanned aerial vehicle - Google Patents

Abstract

FIELD: rocket technology.

SUBSTANCE: invention relates to rocket technology, namely to a detachable braking and stabilization system of a warhead of an unmanned aerial vehicle. An attachment and separation unit of the braking and stabilization system of the warhead of the unmanned aerial vehicle contains a case, to which the braking and stabilization system is rigidly attached, as well as a pyrotechnic mechanism consisting of a powder charge and a squib. The case of the unit is attached to a case of the warhead due to an annular groove on the case of the warhead, in which two half-rings are installed, which have the possibility of reclining in the radial direction, and which are interconnected by explosive bolts. Half-rings are attached to the case by means of rods connected to pistons installed in a collector with the pyrotechnic mechanism and having the possibility of lifting rods with half-rings. The collector with the pyrotechnic mechanism is installed in the case of the attachment unit.

EFFECT: reduction in the impact of axial overloads on the warhead when the braking and stabilization system of the warhead of the unmanned aerial vehicle is separated.

1 cl, 3 dwg

Description

The invention relates to rocketry, and in particular to detachable warheads of unmanned aerial vehicles equipped with a braking and stabilization system (STS).

From the patent of the Russian Federation for the invention No. 2545477 "System of separation and stabilization for the combat compartment of the projectile", publ. 03/27/2015, bul. No. 9, IPC F42B 15/36, F42B 10/56, a separation and stabilization system for the combat compartment of the projectile is known, containing a shell with a bottom, in which the separation unit and a parachute stabilization system are located, which includes a container with a bottom and a lid and a parachute with swivel. In it, the container is equipped with a pulling link made in the form of a piston with a central gas conduit movably connected to the parachute compartment cover and providing gas-dynamic connection of the separation unit with the combat compartment actuator. At the bottom of the container there is a device for separating compartments of delayed action, gas-dynamically connected with the separation zone and the working cavity, made between the bottom of the container and the piston of the pulling link, and on the inner surface of the container there is a latch made in the form of a spacer spring ring, persistently interacting with the piston of the pulling link, at the same time, the lid, fastened to the swivel and the shell, is provided with a forcing unit connecting it with the parachute compartment container, and the pulling link is connected to the parachute dome by means of an exhaust tether.

The disadvantage of this device is the instability of the opening of the parachute system, and the impossibility of separating it from the head part prevents further movement of the head part, as well as the search for a target.

The closest in technical essence and the achieved result for the invention (prototype) is the RF patent for the invention No. 2231016 "Separable head", publ. 06/20/2004, bul. No. 17, IPC F42B 15/36, F42B 10/56. The design of the detachable warhead contains a parachute compartment in the form of a casing with a bottom, a compartment charge, an opening mechanism with a pusher and an opening charge, a safety-actuating mechanism, actuating bodies and forcing units. The opening mechanism is rigidly fixed in the bottom of the parachute compartment and is made in the form of a cylinder with a piston and annular stops. On the piston of the opening mechanism, an opening charge and a hollow pusher are mounted, fastened to the casing of the parachute compartment. In the cavity of the pusher there is a separation charge gas-dynamically connected with the separation cavity. Charges of separation and opening are gas-dynamically connected with a two-channel safety-actuating mechanism placed in the piston.

The use of such a design makes it possible to ensure the stability of the parachute stabilization system, but limits its use, since the parachute system does not separate from the head part, thereby preventing further movement of the head part. In addition, the disadvantage of this device is a large overload on the warhead at the time of operation of several compartment charges, which can lead to equipment failure, change settings.

The technical objective of the claimed invention is to reduce the impact of overloads on the warhead (warhead) at the time of separation of the braking and stabilization system (STS), which is achieved by attaching a pyrotechnic mechanism outside the warhead body. In this case, the semi-rings, due to which the body is secured, recline in the radial direction without affecting the warhead body.

The claimed invention "Assembly for attaching and separating the braking and stabilization system (STS) of the warhead of an unmanned aerial vehicle" is presented on:

- Fig. 1 - general view of the fastening of the braking and stabilization system;

- Fig. 2 - shows the device for fastening the half rings;

- Fig. 3 shows the pyrotechnic mechanism of the collector. The claimed "Assembly for attaching and separating the braking and stabilization system (STS) of the warhead of an unmanned aerial vehicle" consists of a body 1 (Fig. 1), to which the braking and stabilization system 2 (Fig. 1) is rigidly bolted, with rods 3 (Fig. 1) and half rings 4 (Fig. 1), through which the body is attached to the annular groove 5 (Fig. 2) on the body of warhead 6 (Fig. 1). To lift the half-rings 4 with rods 3 connected to the pistons 7 (Fig. 3), a collector 8 (Fig. 1) with a pyrotechnic mechanism consisting of a powder charge 9 (Fig. 1) and a squib 10 (Fig. 3) is installed in the housing 1 ).

The fastening of the STS 2, which is a container with a parachute, is carried out by means of a body, which is attached to the body of the warhead due to the presence of an annular groove on the body of the warhead 6, in which two half-rings 4 are installed, interconnected by two explosive bolts 11 (Fig. 2). The half rings are secured by four rods connected to the pistons, which are installed in the manifold with a pyrotechnic mechanism.

The claimed invention works as follows: when the sensors, which are located in the bow of the warhead, come into contact with the surface of the water, a signal is given to the explosive bolts 11 and the squib 10, the explosive bolts are torn and, under the action of powder gases from the powder charge 9, four pistons lift the rods 3 with half rings 4, which disengage from the groove of the product and in a short time (~ 0.05 s) release it from the body, which is rigidly connected to the braking and stabilization system. At the same time, axial overloads are reduced to the minimum, not leading to a failure of the electronic equipment of the aircraft.

The proposed technical solution made it possible to develop a rational design of the mount and separation of the STS, which ensures the separation of the parachute system during the splashdown of the warhead for its further correct operation under water.

The claimed invention can be created in mass production using modern materials and technologies.

Claims (1)

Mounting and separating the system of braking and stabilization of the warhead of an unmanned aerial vehicle, containing a body to which the braking and stabilization system is rigidly attached, a pyrotechnic mechanism consisting of a powder charge and a squib, characterized in that the body is attached to the body of the warhead by making an annular grooves on the body of the warhead, in which two half-rings are installed, which can be tilted in the radial direction and are interconnected by explosive bolts, and the half-rings are attached to the body by means of rods connected to pistons installed in the manifold with a pyrotechnic mechanism and having the ability to lift rods with half-rings , while the collector with a pyrotechnic mechanism is installed in the body of the mount.

Images