RU-2861673-C1 - TOWING DEVICE

RU2861673C1RU 2861673 C1RU2861673 C1RU 2861673C1RU-2861673-C1

Abstract

FIELD: aviation technology; rocket technology. SUBSTANCE: invention relates to devices for deploying, holding, operating and jettisoning a towed target, designed to protect aircraft from enemy weapons. The towing device consists of a reel supported during rotation by plain bearings in the form of bushings pressed into two struts, friction members with weights, a cable-rope wound on a spool of the reel, and a sliding contact consisting of slip rings and spring contacts. The cable-rope is connected at one end to the towed target, and at the other end to the sliding contact. Friction members and weights are inserted in pairs into radially arranged holes in the side cheek of the reel spool. An axle is inserted into the axial hole of the spool, through which, according to a pulley scheme, the cable-rope is led into the mounting volume of the opposite cheek of the spool and terminated, soldered to slip rings installed in the grooves of the reel cheek. The spring contacts are soldered to wires going to the connector, and are installed in the grooves of a stationary contact. The reel is installed between the struts fixed on the body of the device for deploying, holding, operating and jettisoning the towed target, with the axle supported by the bushings, such that the spring contacts of the stationary contact mounted on the strut are in contact with the slip rings. EFFECT: creating a simple design of the towing device, ensuring stable unwinding of the cable-rope with the shortest target stabilisation time after its separation at a predetermined distance from the carrier. 2 cl, 4 dwg

Inventors

Burkutbaev Samat Sansyzbaevich
Gugnin Ilya Dmitrievich
Govyrin Timofej Aleksandrovich
Tomilov Andrej Vyacheslavovich
SOLOVEV ALEKSANDR GENNADEVICH

Dates

Publication Date: 20260507
Application Date: 20260218

Claims (2)

1. A towing device comprising a reel supported during rotation by plain bearings in the form of bushings that are pressed into two posts, clutches and a cable-rope that is wound onto the reel spool and connected at one end to the towed target, and at the other to a sliding contact consisting of slip rings and spring contacts, characterized in that in the side cheek of the spool, clutches and weights are inserted in pairs into radially located holes, an axle is inserted into the axial hole of the spool, through which, according to a block diagram, a cable-rope is led out into the installation volume of the opposite cheek of the spool and sealed with a soldering on slip rings installed in the grooves of the spool cheek, and spring contacts are soldered on wires going to the connector and installed in the grooves of the stationary contact, while the reel is installed between those fixed to the body of the device ejection, retention, operation and release of a towed target by stands with the axle supported on bushings in such a way that the spring contacts of the stationary contact installed on the stand come into contact with the slip rings.
2. A towing device according to paragraph 1, characterized in that the reel is secured from rotation by a wire threaded through holes in the axle.

Description

The invention relates to the field of aviation and rocket technology, namely to devices for ejecting, holding, operating and dropping a towed target, designed to protect aircraft (hereinafter referred to as the carrier) from destructive countermeasures. The "Device for Separating, Holding, and Releasing a Towed Target" (PM RU 105733 U1; publication date 20.06.2011; IPC F41J 9/10) is known. It is designed to release a target to a specified length of tether, hold the towed target on the tether, supply power and transmit information from the aircraft to the target during towing, and release the tether with the target after completing the flight program. The device comprises: a housing; a separation mechanism; a tether-cable burning mechanism, and a stationary, "inertialess" reel with a tether-cable wound in several layers; A rotating disk with a spool axis and a hole near the disk's edge through which the other end of a tether cable is passed and connected to the target. The tether cable is connected to the aircraft's on-board electrical system via a connector. A friction brake and its activation device are mounted inside the spool. A centrifugal mechanism is mounted on the disk to apply braking force during target release. The technical result consists in reducing the probability of a cable-tether break by stabilizing the speed of the cable-tether rewinding in the target separation (release) mode with a rewinding stop mechanism. A drawback of the known invention is the longitudinal twisting of the tether cable as it unwinds from the static reel. This negatively impacts the tether cable's durability and target stabilization after unwinding. This can lead to increased target recovery time when a stable target position is required. A second drawback is the complex design of the spool braking system and the reel stop mechanism. The closest in technical essence is the patent "Towed Decoy System (Towed bait device)" (FROM US 4852455; publication date 01.08.1989; IPC B64D 1/00, F41J 9/08). The towed bait device consists of: a container, a bait, a rotating reel, the power of which is supplied by means of spring electric sliding contacts on the board of the rotating part, pressed to the electric tracks of the board of the non-rotating part, friction bearings, a tow rope connected to the bait and wound on the rotating reel; a device for cutting the tow rope, located inside the container between the bait and the reel; Two pyrotechnic charges, housed inside a removable container, one of which, upon detonation, creates a force to push the bait out of the housing via a pallet, while the other, upon detonation, creates a force to cut the tow rope. The interior of the container is equipped with rollers that ensure the bait exits the container in the direction of the airflow or perpendicular to it. The technical result of the invention is aimed at ensuring minimum dimensions of the invention and, as a consequence, an increase in the number of devices placed on board the aircraft by placing a rotating reel, a device for cutting the towing cable and a pyrotechnic element that ejects the target in one place inside the container with the target. The disadvantage of the prototype lies in the structural and technological complexity of the coil design, caused by: - by making the rotating part of the sliding electrical contact in the form of a separate board; - the need to create and maintain a sealed gas supply channel from the pyrotechnic cartridge through the reel axle under the target-pushing tray. Seals that increase friction between the reel and stationary components, in turn, lead to another drawback: increased load on the cable during breakaway and, consequently, increased demands on its strength characteristics. The technical objective of the claimed invention is to create a simple design for a towing device that ensures stable winding of a tow rope with the shortest possible time for setting up and stabilizing the target after it has been separated at a specified distance from the carrier, and that allows for a reduction in the strength requirements for the tow rope. The solution to this problem is achieved by placing the reel on a freely rotating axle supported by plain bearings, which, despite their simplicity, allow the system to operate at high rotation speeds. The reel incorporates a radially mounted friction brake, preventing critical rotation speeds from being exceeded. The brake is reinforced with weights, which increase the efficiency of the friction clutches without increasing their number or size, and, consequently, without increasing the size of the friction mechanism. The device design is thus simplified by eliminating the working fluid feed channel from the reel. The reel's rotation speed is limited and stabilized by the braking force of the radially mounted friction clutches and weights, and spiral twisting of the cable is prevented by its detachment from the rotating reel. The essence of the claimed inventio