RU194131U1 - Military transport helicopter - Google Patents

Abstract

The utility model relates to the field of helicopter engineering. The transport and combat helicopter contains a fuselage, a rotor with blades made of polymer composite materials, a four-blade X-shaped tail rotor, a twin-engine power unit with a dustproof device, a helicopter control system, a screen-exhaust device, a fixed gear, and a fixed movable cannon mount. The fixed movable cannon mount is equipped with a modified link, as well as the executive units of the LTC ejection system are installed on the fuselage. The modified tapping link ensures the safety of using a fixed movable cannon mount. The LTC ejection system provides combat survivability by eliminating MANPADS missiles from entering the helicopter. The utility model is aimed at improving the reliability of a military transport helicopter. 1 s.p. f-ly, 7 ill.

Description

The inventive utility model relates to aircraft, namely, to the design of a helicopter equipped with various types of weapons, a navigation complex, an aiming and computing complex and night vision equipment and designed for round-the-clock combat missions, transportation of various cargoes, transportation of troops and the wounded and their fire cover .

Known transport-combat helicopter of a similar purpose and the closest in design to the claimed (patent RU 2340511 VC 27/00, op. 10.12.2008). The helicopter support system includes a rotor with a sleeve with spherical metal-rubber bearings and with blades made of polymer composite materials and a four-blade X-shaped tail rotor. The power plant contains two gas turbine engines, dust protection devices and screen exhaust devices. The helicopter is made with fixed gear. The helicopter also contains a complex of navigation and electronic indications. To solve combat missions, the helicopter provides for the placement of a fixed movable cannon mount and sets of unguided and guided missile weapons with a round-the-clock surveillance and sighting system and an aiming and computing complex are installed.

Due to the complexity of the tasks of a transport-combat helicopter equipped with modern navigation and electronic indication systems, the difficulty of piloting a helicopter of round-the-clock use, especially for combat use, take-offs and landings at night and at low altitudes, ensuring helicopter safety in all flight modes becomes especially significant.

Features of the combat use of the helicopter are the tasks of firing from small arms and cannon weapons, as well as the ability to counter attacks from man-portable air defense systems in connection with their mass distribution among ground forces. When firing from small arms and cannon weapons, there is a need to collect or guaranteed removal from the elements of the fuselage of the helicopter in flight while hovering, low and high speeds of the elements of ammunition: spent parts of the cartridge belt and cartridges.

The objectives of the proposed technical solution are to increase the operational reliability of a transport-combat helicopter, improve combat survivability, as well as increase its combat effectiveness and flight safety.

The technical result is achieved due to the fact that in a transport and combat helicopter containing a fuselage, a main rotor with blades made of polymer composite materials, a four-bladed X-shaped tail rotor, a twin-engine power plant with a dustproof device, a helicopter control system including units and longitudinal, transverse wiring control and joint control of the main rotor pitch, engines and stabilizer, screen-exhaust device, fixed gear, fixed movable push manual installation, a complex of guided missile weapons with a round-the-clock surveillance and sighting system, sighting and computing complex, a complex of navigation and electronic indication, unguided missile weapons, the design of a fixed movable gun installation is equipped with a modified link, while elements of a false thermal targets ejection system are installed on the fuselage ( LTC).

The modified link is a welded construction of metal sheets in the form of a bell mounted on a standard link of the fixed removable movable cannon mount. For fastening the modified tapping link to the standard tapping link, additional fastening nodes are made to ensure reliable operation at high loads arising at high rates of fire. The fasteners are made, for example, in the form of a quick-detachable connection of two studs, which are fixed in the eyes of both branches of the taps with the help of springs ("sea bolts"). The necessary installation angles of the walls of the bell of the branch link are selected in such a way as to ensure a guaranteed removal of the spent links from the structural elements of the fuselage at all operating modes of the fixed movable cannon mount.

On the fastening elements on the fuselage are the executive units of the LTC ejection system. The fastening elements are metal brackets that provide the necessary strength when using the LTC, as well as the required installation angles to ensure a safe flight of the LTC relative to the trajectory of the rotor blades and helicopter fuselage elements. Additionally, compensating plates can be installed to select the required installation angle of actuating units without finalizing the manufactured brackets. The remaining blocks of the LTC ejection system are located inside the fuselage in the technical compartments.

The proposed technical solution can be implemented in the design of the MI-35M helicopter, which is an upgrade of the MI-24 helicopter.

The design of the transport-combat helicopter is illustrated by drawings, which depict:

FIG. 1 - transport and combat helicopter, side view;

FIG. 2 - the same, top view; FIG. 3 same front view;

FIG. 4 - installation of the modified link, side view;

FIG. 5 is a view along arrow A in FIG. 4;

FIG. 6 - installation of executive units of the LTC exhaust system, front view;

FIG. 7 is a view along arrow B in FIG. 6.

Transport and combat helicopter (Fig. 1, 2, 3) includes a fuselage 1, a rotor 2 with blades 3 made of polymer composite materials, a sleeve 4 equipped with elastomeric bearings, and a swash plate 5 and a four-blade X-shaped steering rotor 6. Powerplant contains two gas turbine engines 7 with dust protection devices 8 and screen-exhaust devices 9. The chassis 10 is made fixed. In the front part of the fuselage 1, a fixed movable cannon mount 11. is installed. On each wing console 12 are installed (Fig. 3) two beam holders 13 for hanging blocks for installing unguided rockets 14 and one launcher 15 on the right.

In order to ensure round-the-clock combat use, the helicopter is equipped with a complex of guided missile weapons, an aiming and computing complex, a complex of navigation and electronic indication, night-vision equipment (not shown in the drawing). The helicopter’s cabin is equipped with adaptation tools for lighting and lighting equipment for night vision goggles used by the crew.

The upgraded guided missile system was made with a round-the-clock surveillance and sighting system based on a gyrostabilized optoelectronic system installed (Fig. 3) in the bow of the fuselage 1, in which modules of thermal imaging, television and rangefinder channels, stabilization systems are placed in its movable gyrostabilized platform and control and direction finding channel guidance anti-tank guided missiles. The complex is designed to destroy stationary and moving ground targets, low-speed air targets, enemy manpower in simple and limited-difficult weather conditions.

In connection with the combat use of small arms and cannon weapons, as well as the need to counter attacks from man-portable air defense systems in the design of the helicopter, it is necessary to develop new technical solutions aimed at improving the reliability of the helicopter.

The modified link 16 (Fig. 4, 5) is a welded construction of metal sheets 17 in the form of a socket mounted on the standard link 18 of the fixed movable gun installation 11. To attach the modified link to the standard link, additional attachment points 19 are made to ensure reliable operation high loads arising at high rates of fire. The fasteners are made, for example, in the form of a quick-detachable connection of two studs 20, which are fixed in the eyes of both branches of the bends using springs 21 ("sea bolts").

To counter portable anti-aircraft missile systems (MANPADS), a transport and combat helicopter included an installation of an LTC ejection system. The LTC ejection system, consisting of actuating units 22 (Fig. 6, 7), control units and a fuse system (not shown) is located on a transport-combat helicopter as follows.

Executive blocks 22 are placed on the brackets 23 outside the fuselage in close proximity to the screen-exhaust devices 9. The brackets 23 are located at certain angles to the construction axes of the helicopter to ensure maximum efficiency and safety of the ejection system. Moreover, the location in close proximity to the screen-exhaust device 9 allows you to create a semblance of a thermal trace of a helicopter in the field of view of MANPADS for the subsequent removal of the guidance of the rocket to the helicopter.

The control blocks and the fuse block of the LTC exhaust system are located inside the fuselage in the technical compartments (not shown).

Additionally, compensating plates 24 can be installed to select the desired installation angle of the actuating units 22 without finalizing the manufactured brackets 23.

The operation of a transport-combat helicopter with a modified link and an ejection system for the LTC is as follows.

When firing from a fixed movable cannon mount, the cartridges located in the cartridge strip are fed directly to the mount from the cartridge box. After extraction of the cartridge from the link of the tape (direction to the gun for firing), the links of the cartridge tape, passing through the receiver of the gun installed in the fixed movable cannon mount 11, are disengaged by the standard tap 18 and come into contact with the walls of the socket of the modified tap 16, while the probabilistic cone the trajectories of their emission into the atmosphere are reduced to ensure the removal of waste links from the elements of the fuselage 1 of the helicopter, including arms suspensions 14, 15 on the beam holders 13.

The quick detachment of the modified tap, achieved using the fastening method, for example, of two studs 20, which are fixed in the eyes of both links by means of springs 21, allows you to perform all the necessary preflight operations with fixed movable cannon charging, for example, charging the gun, without increasing the execution time.

The executive units 22 of the LTC ejection system, located in the immediate vicinity of the screen-exhaust device 9, create a semblance of a helicopter’s thermal footprint in the field of view of MANPADS for the subsequent removal of missile guidance on the helicopter, thus providing the ability to counter portable anti-aircraft missile systems (MANPADS).

Brackets 23, installed at certain angles to the construction axes of the helicopter, provide maximum efficiency and safety of the exhaust system. In this case, additionally compensated plates 24 provide the required installation angle of actuating units 22 without finalizing the manufactured brackets 23.

The presence of a modified retraction link and an LTC ejection system increases the safety of use, combat survivability and combat effectiveness of a transport-combat helicopter, including during combat use.

Claims (2)

1. Transport and combat helicopter containing a fuselage, a rotor with blades made of polymer composite materials, a four-blade X-shaped tail rotor, a twin-engine power unit with a dustproof device, a helicopter control system, a fixed movable cannon installation, characterized in that the fixed movable cannon installation equipped with a modified link, representing a welded structure of metal sheets in the form of a bell mounted on a regular link, fixed by olnitelnyh attachment points providing quick- design, the installation angles of the walls of the socket zveneotvoda selected based on the conditions for ensuring remove exhaust units of elements of the fuselage structure. 2. Transport and combat helicopter according to claim 1, characterized in that the additional attachment points of the modified retractor design are made in the form of a quick-detachable connection of one or two studs that are fixed in the eyes of both retractors using springs.

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