RU191683U1 - Multifunctional double combat helicopter - Google Patents

Abstract

The utility model relates to aviation technology, namely to the design of a helicopter equipped with various types of weapons. The multifunctional double combat helicopter includes a fuselage consisting of a cockpit located in the bow, a central part with a technical compartment with equipment, a tail and keel beams, a stabilizer, power plant hoods, a main rotor with blades made of polymer composite materials, a four-bladed X-shaped steering propeller, twin-engine power plant with a dustproof device, screen-exhaust devices, helicopter equipment, helicopter operational controls, instrument s backup indication and a complex of avionics, fixed gear. The manhole cover in the technical compartment of the helicopter located on the port side is made with reinforced internal stiffnesses increased in height; the mechanism for opening and closing the manhole cover is a rotary handle made on both sides, kinematically connected with a three-bolt locking system, with one bolt located on the opposite side of the hinge plate hinge assemblies, the other two are located in the upper and lower parts of the manhole cover, each of the bolts enters the mating sockets located on the opening under the cover hatch, the cover is equipped with a key insert. The utility model is aimed at increasing the combat effectiveness of the helicopter and the safety of fulfilling its tasks, while ensuring ease of use in operation and protection against unauthorized access. 1 s.p. f-ly, 4 ill.

Description

The utility model relates to aeronautical engineering, 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.

A transport-combat helicopter of a similar purpose and the closest in design to the claimed one is known (see "Jane's" "ALL THE WORLD'S AIRCRAFT" 1999-2000, p. 408). The helicopter bearing 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 fact that guided missiles are launched from the helicopter wing consoles, there is a need to strengthen the sides on both sides of the helicopter, especially at the location of the manhole cover in the technical compartment, as a cutout in the side panel on the left side of the fuselage under the manhole cover leads to a local decrease in strength.

RF patent No. 2 202 498 (op. 04/20/2003) describes a hatch with a cover installed from inside the helicopter fuselage with emphasis on the inside of the right wing opening of the cargo compartment through a tubular seal. A circular diaphragm is fixed in the middle part of the lid, in the wall of which holes are made and locking pins are placed in them, and in the center of the diaphragm there is a rotation axis with handles mounted on the ends of the axis on both sides of the lid kinematically connected with the pins. Two fixed pins are installed at the base of the lid, fixing the lid when closing the hatch using the holes formed in the frame of the hatch.

However, the hatch described above performs other functional tasks, such as an additional exit for landing people, loading and unloading cargo in operation, and does not provide for the perception of loads when exposed to a shock wave when launching missiles from the wing consoles, and also does not provide sufficient fixation during deformation.

The task at hand is to increase the combat survivability of the helicopter, increase the operational reliability of the transport-combat helicopter, as well as increase its combat effectiveness and the safety of performing the tasks in operation.

To solve this problem, the claimed multifunctional double combat helicopter, consisting of a fuselage, which includes in its design crew cabs located in the bow, the central part with a technical compartment with equipment, tail and keel beams, a stabilizer, and power plant hoods. The helicopter also includes a rotor with blades made of polymer composite materials and a four-bladed X-shaped tail rotor, a twin-engine power unit with dust protection devices installed on each of the engines in the front part, and screen-exhaust devices in the rear of the engines. For piloting, general helicopter equipment, operational controls for the helicopter, backup indication devices and a set of on-board electronic equipment, as well as a fixed gear, are installed. The manhole cover in the technical compartment of the helicopter located on the port side is made with reinforced internal stiffnesses increased in height. An open-close mechanism for the hatch itself is installed on the manhole cover, which is a rotary handle made on both sides, which are kinematically connected with a three-beam locking system. The crossbars are located as follows: one crossbar extends on the opposite side of the hinge plate hinge assemblies, the other two exit at the upper and lower parts of the hatch. Each of the crossbars enters mating nests located on the left side of the fuselage. The manhole cover has a key insert for locking against unauthorized access, and in addition, a traction is installed on it to fix the cover in the open position.

Structurally, the manhole cover is a frame consisting of outer and inner skins connected with an internal power set of stiffness by means of a rivet connection, as well as Z-shaped collars covering the edges of the manhole cover along the contour. All stiffnesses are made of a certain height, taking into account the strength characteristics of the materials used to absorb operational loads. To facilitate weight in the hatch structure, material D16 is used. The lid is hung by means of hinges on the left side panel of the fuselage and is fixed in the closed position by means of a rotary handle, as well as a key insert that protects against unauthorized access to the technical compartment. The mechanism for opening and closing the hatch is a rotary handle made on both sides. Both handles are mounted on one axis and kinematically connected with a three-gang hatch opening / closing system. The crossbars coming out of the hatch cover enter the nests installed on the opening under the hatch in three directions: one crossbar enters the nest located on the opposite side of the hinge assemblies, the other two go into the nests located on the upper and lower parts of the opening under the hatch cover. To fix the hatch in the open position, a folding rod is provided, which is installed on the inside of the hatch. One end of the rod is fixed to the bracket in the upper part of the cover, and the other fastens the rod in the closed position in the middle part of the cover by means of a lyric. When opening the hatch cover, the free end of the rod is inserted into the socket on the opening under the hatch to prevent it from closing.

These solutions made it possible to increase the rigidity of the manhole cover and ensure its rigid fixation from the impact of the shock wave when launching missiles from the wing consoles, as well as to ensure ease of use in operation.

The essence of the utility model is illustrated by drawings:

in FIG. 1 - shows a multi-functional combat helicopter, general view;

in FIG. 2 - manhole cover in the technical compartment of the fuselage of the helicopter;

in FIG. 3 is a section AA of FIG. 2;

in FIG. 4a, 4b, 4c show views of each crossbar, respectively, with mating sockets in the opening for the manhole cover.

A multifunctional double combat helicopter contains a fuselage consisting of a crew cabin 1 located in the bow, central part 2 with a technical compartment with equipment, tail 3 and keel 4 beams, stabilizer 5, power plant hoods 6. The helicopter contains a main rotor 7 with blades from polymer composite materials and a four-blade X-shaped tail rotor 8, a twin-engine power plant 9 with a dustproof device 10, screen-exhaust devices 11, a fixed gear 12. The helicopter also contains schevertoletnoe equipment, operational controls helicopter backup devices and display complex avionics (not shown).

On the left side of the fuselage there is a hatch cover 13 in the technical compartment of the fuselage, made with reinforced internal stiffnesses increased in height 14. There is a hatch opening / closing mechanism 15 on the hatch cover, which consists of rotary handles 16, made on both sides, kinematically connected with a three-beam open-close system 17, with one crossbar 18 located on the opposite side of the hinge plate assemblies 19 of the hatch, the other two 20, 21 are located in the upper and lower parts of the hatch. Each of the bolts enters the mating slots 22 located on the opening under the hatch cover 23. A key insert 24 is installed on the lid for locking against unauthorized access, as well as a folding rod 25 for fixing the lid in the open position.

The manhole cover is a frame consisting of an outer 26 and an inner 27 sheathing connected with an internal power set of stiffness 14 by means of a rivet connection, as well as Z-shaped collars 28, covering along the contour of the edge of the manhole cover.

The manhole cover operates as follows.

To open the manhole cover, you must first open with a key the mechanism to lock the handles from the closed position and turn the knob down to pull the manhole cover towards you. In this case, the opening-closing mechanism will move the locking bolts inside the manhole cover and release them from engagement with the sockets installed on the opening under the manhole cover on the left side of the fuselage. Having opened the lid 90 degrees, it is necessary to release the end of the rod installed on the manhole cover from engagement with the lyric that fixes the rod and insert it into the socket on the fuselage aperture. In this case, the lid will be in the open position and will not be able to close spontaneously.

To close the manhole cover, you must repeat the above steps in reverse order, i.e. release the end of the locking rod from engagement with the socket on the fuselage aperture and fasten it to the lyre on the manhole cover. Slam the hatch cover with slight pressing to the opening on the fuselage and turn the open-close knob up, while the bolts will be blown out of the hatch cover and enter the mating slots on the opening under the hatch on the fuselage. Then you need to turn the key up. The manhole cover will be closed against unauthorized access.

By increasing the stiffness of the hatch cover of the technological compartment of the helicopter fuselage and its rigid fixation from the impact of the shock wave when launching missiles from the wing consoles, the combat effectiveness of the helicopter and the safety of fulfilling its tasks are increased, while providing ease of use and protection against unauthorized access.

Claims (2)

1. Multifunctional double combat helicopter, including the fuselage, consisting of a cockpit located in the bow, the central part with a technical compartment with equipment, tail and keel beams, a stabilizer, power plant hoods, a main rotor with blades made of polymer composite materials, a four-bladed X -shaped tail rotor, twin-engine power plant with a dustproof device, screen-exhaust devices, general helicopter equipment, helicopter operational controls, etc. backup indication indicators and on-board electronic equipment complex, fixed gear, characterized in that the hatch cover in the technical compartment of the helicopter, located on the port side, is made with reinforced internal stiffnesses increased in height, the hatch cover opening and closing mechanism is a rotary handle, made on both sides, kinematically connected with a three-beam locking system, with one crossbar located on the opposite side of the hinge plate hinge assemblies, the other two located ozheny the top and bottom of the hatch cover, each of the crossbars in response comes socket disposed on the doorway under the hatch cover, the cover is provided for locking the insert klyuchnoy from unauthorized access, moreover, it is equipped for fixing the rod cover in an open position. 2. The helicopter according to claim 1, characterized in that the manhole cover is a frame consisting of external and internal skins connected with an internal power set of stiffnesses through rivet joints, as well as Z-shaped collars that cover the edges of the manhole cover along the contour.

Images