RU2783327C1 - Automatic gun power magazine - Google Patents

Abstract

FIELD: weaponry.

SUBSTANCE: automatic gun power magazine is made in the form of parallel sections, front and rear, to accommodate shots. Each section of the magazine is equipped with a lifting device, consisting of a pallet with nuts fixed on it, kinematically connected with threaded rollers, pivotally mounted in the sections of the magazine and equipped with sprockets connected by a chain. Each nut is made in the form of a cage enclosing the threaded shaft, while the cross section of each cage forms an equilateral polygon, and a hole is made in each face of this polygon, each of which contains a roller, so that one of its ends is placed in the form of a spherical head. into a helical groove made around the circumference of the threaded shaft, and the other end in the form of a cylinder interacts with the holder.

EFFECT: increasing the reliability of the gun power system, increasing the capacity of the magazine with minimal dimensions, reducing the weight of the system.

4 cl, 6 dwg

Description

The invention relates to military equipment and can be implemented in the designs of combat vehicles equipped with automatic guns with selective ammunition.

Known power system guns with two-tape power infantry fighting vehicle BMP-2 (Infantry fighting vehicle BMP-2. Technical description and operating instructions. Part 1. Moscow. Military publishing house, 1987). The gun supply system is designed to accommodate and supply cartridge belts to the gun receiving windows and includes a magazine, a left and right sleeve, a pull-up mechanism, a screw sleeve, a neck and a flexible element. The store is attached to the floor of the fighting compartment, is a welded structure and consists of left and right compartments with covers. In the right compartment there are cartridge belts loaded with cartridges with armor-piercing tracer (BT) shells, in the left compartment filled with cartridges with high-explosive fragmentation incendiary (OFZ) and fragmentation tracer (OT) shells.

The left compartment is divided into two parts by a partition. The compartments are provided with output vertical channels.

The left sleeve and the right sleeve are designed to accommodate and supply the tape from the magazine compartments to the pull-up mechanism. The sleeve is fixed along the perimeter of the floor.

The screw sleeve and the neck serve to accommodate, rotate and supply cartridge belts from the pull-up mechanism to the flexible element.

Screw sleeves and neck are welded structures, divided into two channels for the passage of two cartridge belts.

The flexible element ensures the supply of cartridge belts from the fixed neck to the receiving windows of the gun at all pumping angles. The flexible element is made in the form of a package of plates pumped relative to a pipe fixed on the holder of the weapon block. The tail part of the plate rests on a rod hinged on the gun casing and on the neck. When pumping the gun, the rod rotates the plates of the flexible element like a fan. The windows in the plates form two channels for guiding the cartridge belts.

The disadvantage of the power supply system is the large length of the paths for supplying the cartridge belt to the weapon and unreliable operation due to the possibility of the projectile nose falling into the gaps between the plates of the flexible element when the gun is raised and lowered, resulting in damage to the cartridge and jamming of the cartridge belt.

Partially, this drawback has been eliminated in the power supply system of the automatic gun (Patent RU No. 2543438 dated January 28, 2015, IPC F41A 9/57).

The feed system consists of a 3-section magazine with output channels and sleeves for guiding the cartridge belt, a flexible element and a neck divided into two channels for supplying two cartridge belts. The magazine sections are installed parallel to each other, the first and second magazine sections are connected by a flexible element made in the form of upper and lower flexible sleeves, one ends of which are fastened to the receiving windows of the gun, and the other - to vertically mounted necks. The necks are connected by means of flat curved guides to the outlet channels of the first and second magazine sections, respectively. The second and third sections of the store are installed next to each other and are interconnected from above using a curved guide.

The disadvantages of this power supply system are large dimensions and weight due to the use of a link for supplying ammunition to an automatic gun.

A known power supply system for an automatic gun (Patent RU No. 2707476 dated 11/26/2019, IPC F41A 9/38), taken as a prototype. The power supply system contains a magazine with parallel mounted sections for placing shots, each section of which is equipped with a lifting device consisting of a pallet with nuts fixed on it, kinematically connected with threaded rollers pivotally mounted in the magazine sections and equipped with sprockets connected by a chain.

The disadvantage of the power system is unreliable operation.

The objective of the proposed invention is to increase the reliability of the gun power system, increase the capacity of the store with minimal dimensions and reduce the weight of the system.

The automatic cannon power magazine consists of parallel mounted sections, front and rear, for placing shots, each section of the magazine is equipped with a lifting device consisting of a pallet with nuts fixed on it, kinematically connected to threaded rollers pivotally mounted in the magazine sections and equipped with sprockets connected chain. What is new is that each nut is made in the form of a cage enclosing the threaded shaft, while the cross section of each cage forms an equilateral polygon, and a hole is made in each face of this polygon, in each of which a roller is placed, so that one of its ends - in the form of a spherical head is placed in a helical groove made around the circumference of the threaded shaft, and the other end in the form of a cylinder interacts with the holder. A double-leaf cover is installed above each section of the magazine, the inner surface of the cover is equidistant from the surface of the bottom of the cartridge case of shots located in the upper row of the magazine. Sprockets mounted on threaded studs at the front of the section have more teeth than sprockets mounted at the rear of the section.

The proposed technical solution is illustrated by graphic materials, where figure 1 shows a side view of the power system, figure 2 is a top view, figure 3 shows a kinematic pair of screw-cage, figure 4 is a longitudinal section of the kinematic pair of screw-cage , figure 5 shows a double-leaf cover, figure 6 shows the connection of the pallet with the cage, figure 7 shows the fastening of the pallet with the cage in section.

The automatic cannon magazine consists of a front section 1 and a rear section 2. The sections are filled with 3 shots, which are stacked in rows. To ensure dense filling of the magazine, the upper row of shots is located horizontally, and the lower row is at an angle to the horizon. The lower row of shots is laid on the pallet 4. The pallets 4 are connected with the octagonal clips 5, which are installed coaxially with the threaded rollers 6. The clips 5 are fastened to the pallets 4 with the help of pins 22 and crackers 23. Holes are made in the edges of the clips 5 in which the rollers 7 are installed. The rollers 7 rotate freely in the holes of the cages 5 and are equipped with spherical heads 8. The axis of each roller 7 is perpendicular to the axis of the roller 6 and coincides with the center line of the helical groove 9. The spherical heads 8 of the rollers 7 are in contact with the side surface of the helical grooves 9. On the threaded rollers 6 sprockets are fixed 10 and 11. Sprockets 10 are located at the front of the section, and sprockets 11 at the rear. The number of teeth of sprockets 10 is one more than the number of teeth of sprockets 11. Sprockets 10 and 11 in each section are connected by a chain 12. Each section of the store has its own drive 13 and tensioner 14, which interacts with the chain 12. Double-leaf covers 15 are installed above each section of the store The flaps are spring-loaded relative to each other. The profile of the covers in cross section coincides with the diameter of the bottom of the cartridge case of the upper row of shots.

A feed drive 16 is fixed on the rear section 2, kinematically connected to the feed shaft 17. The feed shaft 17 is connected with the sprockets 19 of the front section 1 by means of a chain 18. A rammer 20 of the front section and a rammer 21 of the rear section are fixed on the chain 18.

Shop automatic gun works as follows. In the initial position, the sections are filled with shots. The rammer 20 is placed behind the upper row of shots of the front section 1, and the rammer 21 behind the upper row of shots of the rear section 2. When the feed drive 16 is turned on, the upper row of shots of both sections moves forward, while the covers 15 act as guides. The upper row of shots of the front section enters the automatic gun, and the upper row of the rear section moves to the place of the upper row of the front section. To fill the top row of the rear section, the drive 13 of this section is turned on. The rollers 6 begin to rotate, the spherical heads 8 of the rollers 7 move along the helical grooves 9 and lift the clips 5 with the pallet 4. The shots in the rear section rise one step until they stop at the cover 14, after which the drive 13 is turned off. To ensure tight stacking of shots in magazine sections, each row is stacked close to each other. The shots are conical, so the axis of the shot in the bottom row is tilted with respect to the horizon. When lifting, the front part of the pallet moves more slowly than the rear due to the different number of teeth of sprockets 10 and 11. Due to this, the axis of the shots in the upper row takes a horizontal position. Similarly, there is a rise of shots in the front section.

Thus, the proposed technical solution made it possible to increase the capacity of the magazine of the automatic gun power supply system, to reduce its dimensions and weight.

Claims (4)

1. Automatic gun power magazine, made in the form of parallel sections, front and rear, for placing shots, each section of the magazine is equipped with a lifting device consisting of a pallet with nuts fixed on it, kinematically connected with threaded rollers pivotally mounted in the magazine sections and equipped with sprockets connected by a chain, characterized in that each nut is made in the form of a cage enclosing a threaded shaft, while the cross section of each cage forms an equilateral polygon, and a hole is made in each face of this polygon, in each of which a roller is placed, thus, that one of its ends - in the form of a spherical head - is placed in a helical groove made around the circumference of the threaded shaft, and the other end in the form of a cylinder interacts with the holder. 2. Automatic gun power store, made according to claim 1, characterized in that a double-leaf cover is installed above each section of the store. 3. Automatic gun power magazine, made according to claim 2, characterized in that the inner surface of the cover is equidistant from the bottom surface of the cartridge case of shots located in the upper row of the magazine. 4. Shop power automatic gun, made according to paragraphs. 1-3, characterized in that the sprockets mounted on the threaded rollers in the front of the section have a greater number of teeth than the sprockets mounted in the back of the section.

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