RU2426675C2 - System to accommodate cargoes and paradrop them from aircraft - Google Patents

Abstract

FIELD: transport.

SUBSTANCE: invention relates to aircraft equipment, particularly, to equipment intended for accommodating and paradropping cargoes from aircraft. Proposed system comprises monorail 3 mounted on freight compartment floor 1 and roller paths 2 to support platform 4 with cargos locked thereon. Lock is made up of cam 8 and rod 6 arranged in casing 5, both being provided with rectangular slot, and rocker 7. Cam, rod and rocker are coupled by rollers 11 fixed by lock washers 12. Carriage 16 is attached to lock casing 5 and provided with revolving rollers 18, 19. Tie rod 21 is arranged in guide slot between carriage bed and casing 5. End of tie rod 21 is coupled with link 25 where shackle 26 and yoke 27 enter. Pilot parachute strand us fastened to yoke 27 and main parachute strand is fastened to shackle 26.

EFFECT: reliable and safe system.

5 dwg

Description

The invention relates to aircraft, in particular to the equipment of aircraft intended for the placement and landing of cargo from an aircraft.

Most effectively, the invention can be used for parachuting airborne cargo on board ramp aircraft.

A device is known for dropping cargo from an aircraft (see AS No. 1466156, class B64D 1/08).

The device comprises a rail chain conveyor with load-carrying trolleys having a vertical tooth, a tray and load displacement limiters, and the device also has a copying device, the copier of which is mounted on the rail, and load-carrying trolleys are equipped with locks and are made in the form of rocking chairs located on both sides of the trolleys, the lower the shoulders of which are made in the form of load-gripping hooks, and the upper shoulders of the rocking chairs are equipped with a follower-probe made in the form of a roller interacting with a copier.

The device is also equipped with cargo parachutes located on the cargo, and pull ropes of cargo parachutes, their ends mounted on load-carrying trolleys.

Such a connection of the pull ropes of cargo parachutes with a movable structural member, such as load-carrying trolleys, does not preclude the unauthorized opening of the parachute in the event that the ropes engage in the structural elements of the aircraft when moving the cargo to the hatch area.

There is also a known system for the placement and landing of cargo from an aircraft, containing rails and roller tracks installed on the floor of the cargo compartment, on which platforms with cargo are located, locked with locks (see Aircraft AN-22 Technical Description. Book 3. Airborne transport and sanitary equipment. Armament, 1971, 2.1 p. 1, 2.3 p. 1).

Removing the platform from the cargo compartment is carried out by the method of disruption by exhaust parachutes. Extraction parachutes are suspended in special niches above the load-carrying device and, with the help of strands, are connected to platform fastening locks that fix the platforms in their initial positions in the cargo compartment with the help of pins that are inserted into special sockets in the monorail of roller equipment.

The opening of the platform locks and the subsequent removal of the platforms from the cargo compartment are carried out by exhaust parachutes, which, after dumping into the stream and filling, develop the necessary traction force.

This design does not exclude the possibility of improper operation of the lock and, as a consequence, premature re-unloading of the exhaust parachute to the main parachute cargo system, which significantly affects the safety of the cargo landing from the aircraft.

The objective of the invention is to increase the safety of landing of cargo from an aircraft by increasing the reliability of the castle and its ease of use.

The problem is achieved in that in a system for placing and landing cargo from an aircraft containing monorail and roller tracks mounted on the floor of the cargo compartment, on which a platform with cargo is located, locked by a lock, according to the invention, the lock is made in the form of a cam and a rod placed in the housing , in each of which a rectangular groove is made, and the rocker arms interconnected by rollers, fixed by lock washers, and a carriage with mounted on its Nina rotating rollers, in addition, in the guide groove of the carriage between the bed and the body is placed thrust the end of which is connected to the link, which includes earrings and fork, the fork is attached to the strand of the pilot chute, and is attached to a shackle strand of the main parachute.

The implementation of the lock in the form of a cam and a rod placed in the housing, each of which has a rectangular groove, and rockers connected to each other by rollers fixed by lock washers, supplying the lock housing with a carriage pivotally mounted on it with rotating rollers mounted on its frame makes it possible to provide reliable traction capture in the process of moving the platform along the cargo compartment until the cut-off of the load-carrying arm and the monorail, where the rollers lose contact with the monorail, and the lock is opened by turning and the carriage relative to the axis.

Placement in the guide groove between the carriage bed and the thrust housing, the end of which is connected to the link that includes the earrings and the plug, while the strand of the exhaust parachute is attached to the fork, and the strand of the main parachute is attached to the earring, which eliminates the possibility of the traction coming out of the lock and provides a re-release only on the edge of a cargo loader.

The invention is illustrated by drawings, where

figure 1 shows a side view of the proposed system;

figure 2 is a plan view;

figure 3 - node I of figure 1;

figure 4 - elements of the lock in the closed position;

figure 5 - elements of the lock in the open position, dotted lines show the position of the carriage and the link until the moment of departure from the monorail.

The system for placing and dumping cargo from an aircraft (see Figs. 1-4) comprises roller tracks 2 mounted on the floor 1 of the cargo compartment, between which a monorail 3 is placed, with which platform 4 is connected with the load. The platform 4 is equipped with a lock, which comprises a rod 6, a rocker 7 and a cam located in the housing 5. The rocker and the cam are mounted to rotate on the axles 9 mounted in the housing with screws 10. A rectangular groove is made in the rod 6, which includes the rocker head 7. In the cam 8, the same rectangular groove is made.

The cam, rocker and rod are connected by two rollers 11, fixed by lock washers 12.

A carriage 16 is pivotally attached to the body 5 by means of a bolt 13, a washer 14, and a nut 15, on the bed of which, by means of one of the bolts 13 and an axis 17, rotating rollers 18 and 19 are installed, which monitor the movement of the load during its movement along the monorail 3 and roller track 2 of the aircraft when ejected. Axis 17 is fixed with pins.

The carriage has the ability to move freely relative to the axis of the bolt 13. The locking pin 20 fixes the carriage from rotation during transportation of the cargo.

In the guide groove between the bed of the carriage and the housing 5 is installed with the possibility of moving in the longitudinal direction of the rod 21, to the end of which, using a bolt 22, the washer 23 and the nut 24, the link 25 is connected. The rod 21 has a profiled cavity, which includes the profiled part of the cam.

Link 25 has earrings 26 and forks 27 connected to the rod 21 with a bolt 22, a washer 23 and a nut 24. A strand of a parachute is attached to the fork 27, and a strand of the main parachute is attached to the earring 26. A calibrated pin 28 is screwed into the housing 5.

System operation

Before landing the cargo in the upper part of the cargo compartment in the niche of the pressure lock set exhaust parachutes.

Preliminarily remove the locking pin and move the rod 21 to the extreme position until the rod 6 is flush with the carriage 16, fix the rod 21 in this position, load the platform with cargo to the installation site of the monorail in the socket. After that, remove the pin from the socket and transfer the rod 21 to the position in which the rod 6 is recessed into the monorail socket and fixed with a tared pin.

A stud is calibrated into the upper opening of the body, calibrated for shear forces from the selected type of exhaust parachute. To the plug 27 attach the strand of the exhaust parachute.

Before dumping the cargo from the aircraft remove the locking pin 20. The load is prepared for discharge. When an electrical signal is applied to the lock securing the exhaust parachute, the exhaust parachute is discharged into the air stream outside the cargo compartment.

When creating a force designed to cut the calibrated stud, it is cut off and the rod 21 moves to the extreme position (towards the exit of the load), it acts on the rod 6. When the rod interacts with the cam 8 and the rocker 7, the rod 6 leaves the monorail nest 3 and there is a movement of the platform 4 with the load towards the exit (cargo hatch) from the cargo compartment.

During the movement of the carriage 16, the lock is in a pressed position due to the rollers 18 and 19, sliding along the monorail 3, thereby holding the rod 21 inside the system.

On the edge of the cargo hatch, the rollers 18, 19 of the carriage 16 come out of contact with the monorail 3 and the carriage rotates relative to the bolt 13. Thus, the thrust disengages from the body 5 and a re-release occurs, providing further removal of the main parachute.

Claims (1)

A system for placing and landing loads from an aircraft, comprising monorails and roller tracks mounted on the floor of the cargo compartment, on which a platform with cargo is located, locked by a lock, characterized in that the lock is made in the form of a cam and a rod placed in the housing, each of which a rectangular groove is made, and the rocker arms, which are connected by rollers, fixed by lock washers, and a carriage with rotating rollers mounted on its frame is pivotally attached to the housing, in addition, in the direction yayuschem groove between the carriage frame and the rod body is located, the end of which is connected to the link, which includes the earring and fork, the fork is affixed to an exhaust chute strand, and the strand is attached to a shackle the main parachute.

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