RU2763224C1 - Universal beam holder for the use of aviation bomb weapons - Google Patents

Abstract

FIELD: aircraft technology.SUBSTANCE: universal beam holder for the use of aviation bomb weapons consists of a movable part and a fixed part. The movable part is made in the form of a lock block (1). The lock block contains a housing with metal stops (10) and guide metal plates (11), a bomb lock (2), bomb grips (4, 5) with stops (6), bosses (9) with a cable passed through them (8). The fixed part contains a power housing in the form of a welded steel frame with eyelets and guide plates, support bevels made from the inside of the power housing, a pull-up unit connected by a cable through rollers with a lock block. The guide pads mounted on the power housing serve as a mate for the guide metal plates (11) of the lock block. The support bevels of the power housing are the mating part for the metal stops of the lock block.EFFECT: simplification of the installation of aerial bomb weapons and increased reliability of their attachment is achieved.1 cl, 4 dwg

Description

The present invention relates to the field of aviation weapons, in particular, to mechanisms for hanging bombs.

The design of low-observable supersonic aircraft carriers of aviation bomb weapons (ABSP) implies the creation of a bomb holder. The topic of using aerial bombs from an unmanned aerial vehicle (UAV) is also very promising, since this is the most common and cheap aircraft weapon in military units.

A significant difficulty in the design of a low visibility combat aircraft is the issue of the internal placement of aircraft weapons of destruction (ASP). This deployment scheme on promising carrier combat aircraft has significant advantages over the external one, which include:

- a significant reduction in radio visibility, i.e. EPR (effective scattering area);

- no influence of the load on the aerodynamic characteristics of the aircraft;

- compact layout and proximity to the center of gravity of the aircraft significantly reduce the load (mass, vibration, torque) on the elements of missile and bomb installations;

- there is no kinetic heating of ASP;

- comfortable conditions for the transportation of ASP and other goods.

The disadvantages include limitations in the modes of combat use and insufficient operational manufacturability (large labor costs in preparing for a sortie).

In this regard, the design of low-observable supersonic carrier aircraft ABSP implies the design of a bomb holder for use in aircraft compartments. Also, for reasons of versatility, the holder must provide conformal placement of the load.

When considering analogues, design and layout solutions for deploying ABSP in the combat compartments of an aircraft are of the greatest interest to the American F-22 and F-35 fifth-generation multi-role fighters, made using stealth technologies and in service with the United States and other countries.

The decisive role in the appearance of the internal holder is played by the space and dimensions of the weapons compartment. On the mentioned aircraft, the width of the compartment allows the technical staff to get close to the installation from one of the sides. That is, with the bomb already suspended, the operator has free access to the holder to manipulate the grips and check the locking kinematics. Also on these aircraft, the bomb is suspended, being already fixed under the beam holder. Lifting is provided by two removable manual belt winches.

The height of the fighting compartment on the F-35 allows the use of a rather large holder (about 40 cm) with a built-in lock BRU-67 / A ("Weapons file", July 2009, p.248 / https://peonet.eglin.af.mil /weapons/download/pdfs/2009/A_1_Weapons_file_cover.gif).

However, to install the holder, in particular, on the UAV, there is a serious limitation on the height of the holder from the bomb suspended on it to the power floor. Also, with a conformal placement, it is impossible to access the installation from the side and rear, and if placed in a compartment about 500 mm wide (bomb diameter from 300 mm), it is extremely difficult.

The inventive universal beam holder for the use of aviation bomb weapons is designed for suspension, transportation and dropping of loads from 50 to 500 kg, placed in the internal weapons compartments of the aircraft, or conformally, both with forced separation and without it.

The technical result achieved by the present invention is to simplify the installation of aviation bomb weapons and the reliability of their fastening.

The claimed technical result is achieved by a universal beam holder for the use of aviation bomb weapons, consisting of a movable part made in the form of a lock block containing a lock block body made in the form of two metal plates rigidly fastened together, metal stops made on the body of the lock block, guide metal plates fixed on the body of the lock block, a bomb lock rigidly connected to the body of the lock block, front and rear bomb grips with stops, bosses mounted on the body of the lock block with a cable passed through them, and a fixed part containing a power body made in the form of a welded steel frame with lugs, guide plates installed on the power housing, support bevels made on the inside of the power housing, and a pull-up unit installed on the power housing, connected by a cable through rollers with a locking block, while installed on the power housing All guide pads serve as a counterpart for the metal guide plates of the lock block, and the supporting bevels of the power body are a counterpart for the metal stops of the lock block.

In FIG. 1 shows a general view of a universal beam holder for the use of aviation bomb weapons

In FIG. 2 shows a general view of the lock block.

In FIG. 3 shows a longitudinal section of the fixed part

In FIG. 4 shows a general view of a universal beam holder for the use of airborne bomb weapons with a suspended load.

The lock block descends from the holder on a cable and consists of the body of the lock block 1, which is two duralumin plates fastened with bolts. In the body of the lock block, a bomb lock 2 is fastened with two bolts, the electrical contacts of which are brought out through the 2RMDT connector to the block 3. To absorb the moment loads acting on the load (for example, when flying with a roll), the front 4 and rear 5 bomb locks are inserted into the body of the lock block grips with stops 6 and fixed with stoppers 7. The lock block is lifted with the help of a cable 8 passed through the bosses 9. The lifting occurs until the metal stops 10 are in full contact with the reciprocal platforms on the power case. Due to the fact that the cable is not rigidly fixed and can move along the grooves of the bosses 9, when the block is lifted with a load, they are self-aligned when tensioned in a vertical plane under their own weight. This solution simplifies the hanging process. When lifting the block with the load, the metal guide plates 11 enter the H9/d9 power housing and act as guides. The guide metal plates 11 also transfer the moment loads from the stops 6 to the power body of the holder.

The fixed part of the universal beam holder for the use of aviation bomb weapons consists of a power body and a pull-up block installed on it.

The power case consists of a welded steel frame 12, on which are made:

- four eyes 13 on top as attachment points to the object;

- support pads (not shown) for a one-sided wedge 14;

- guide pads 15, serving as a counterpart for the guide metal plates 11 of the lock block;

supporting bevels 16, which are the counterpart for the metal stops 10 of the lock block.

The single-sided wedge 14 walks along the support platforms with the help of a rod 17 driven by a rocker arm 18 through the rotation of a screw shaft 19 with a two-start thread. The latter are in an aluminum case 20 (shown transparent for clarity) of the pull-up block. The rocker 18 moves along the guides 21 until it stops in the body.

The one-sided wedge 14 is an important structural element, since it fixes and holds the lock block with the load by the supports 22 on both sides on the fixed part of the universal beam holder. In FIG. 3 the wedge is shown in its most closed position. A spring 23 is installed on the rod 17. The spring is necessary in order to automatically eliminate the backlash of the joint when vibrations occur in flight, driving the single-sided wedge 14 into the slightest gap formed from vibrations (for a half-cycle of each vibration). To fix or remove the movable part of the universal beam holder for the use of aviation bomb weapons, it is necessary to rotate the shaft 19 to move the single-sided wedge 14 to the open position until the pin 24 enters it completely. This operation opens an opening between the support platforms (not shown) of the single-sided wedge 14, through which the support 22 of the lock block can move vertically when it is raised/lowered by a winch through the wheel system. The rotation of the shaft 19 is carried out through an angle gearbox or a cardan shaft (not shown in the figures), depending on which carrier the holder is installed on.

The ascent and descent of the movable part of the universal beam holder for the use of aviation bomb weapons is carried out by rotating the common shaft of two drums 25, in which one end of the single cable of the holder is fixed. It goes from one drum to another through the locking block on tapered rollers 26 and wheels 27 located on both sides. Also, a stacker 28 is installed on the pull-up block, which presses the cable against the grooves on the drums 25 with the help of a spring 29 and thereby ensures its uniform winding on both sides. The rotation of the shaft with drums 25 is carried out through a worm-type gearbox, the location of which depends on the layout of the carrier aircraft.

A contact device 30 with 10 contacts is installed inside the pull-up block, which closes all circuits from the bomb lock through block 3. Further, the wires from it are mounted in a common connector 31 of the SNTs23 type, designed to connect to the aircraft. Also, electrical circuits from microswitches 32 lead to the connector 31. Microswitches 32 are located on the support bevels 16 to signal contact with them of the counterpart of the lock block and in front of the single-beveled wedge 14 to register the fact of its closure. Microswitches 32 are three-terminal. In the normal position, each of the microswitches supplies current to its own red light on the aircraft panel. In the pressed position, a circuit with a green LED is closed, and the previous one opens. Extinguishing of all 4 red lamps and lighting of 4 green lamps indicates that the lock block is securely fixed on board (in the fixed part of the holder). The signal about the presence of cargo is given from the button of the bomb lock.

The design of the universal beam holder for the use of aviation bomb weapons allows, if necessary, to install the load on the object by one person from the technical staff.

Claims (1)

Universal beam holder for the use of aviation bomb weapons, consisting of a movable part made in the form of a lock block, containing a lock block body made in the form of two metal plates rigidly fastened together, metal stops made on the lock block body, fixed on the lock block body block guide metal plates, a bomb lock rigidly connected to the body of the lock block, front and rear bomb grips with stops mounted on the body of the lock block of the boss with a cable passed through them, and a fixed part containing the power case, made in the form of a welded steel frame with lugs mounted on the power housing guide pads, made on the inside of the power housing support bevels, and a pull-up block installed on the power housing, connected by a cable through rollers to the lock block, while the guide pads installed on the power housing serve as a counterpart yu for the guide metal plates of the lock block, and the supporting bevels of the power body are the counterpart for the metal stops of the lock block.

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