RU2338143C2 - Feeding system of automatic grenade launcher - Google Patents

Abstract

FIELD: weapons.

SUBSTANCE: invention concerns military techniques in particular to the feeding system of gun-cannon armor installations. The feeding system of an automatic grenade launcher is established outside of an armoured unit tower and contains a container with a pipe and pivotally conjoined mouth of a grenade launcher casing connected using a pass thru. The system is supplied with a grenade supply sleeve, established between the pipe and the container, thus one end of the sleeve is fixed on the pipe with a turn of its target window against the pass thru of a mouth at an angle equal to half of a difference of angles of an eminence and decrease of a grenade launcher, and other end covers the container mouth. The container is established on an inclined surface of a tower stern with possibility of its fast replacement, and the pipe is executed with fastening possibility on a tower and with provision of axle coaxiality of twisting of a cartridge tape and own axis in its internal diameter. The rollers with possibility of rotation and interaction with a cartridge tape are established on the casing mouth and grenade supply sleeve.

EFFECT: use of the feeding system for small-sized towers without reduction of ammunition load.

2 cl, 3 dwg

Description

The invention relates to military equipment and can find application in rifle-gun installations of infantry fighting vehicles, armored personnel carriers, as well as in stationary armored vehicles.

A known power system for an automatic grenade launcher according to patent RU No. 2035024 dated 05/10/95 IPC ⁶ F41A 23/24, selected by the authors as an analogue. In this power system, the grenade launcher is mounted through a swivel mount on a carriage equipped with a flange, by means of which it is mounted on the roof of the armored turret. The grenade launcher is powered from the cartridge magazine located inside the fighting compartment, through an opening in the tower roof, hollow carriages and a rotary support.

The disadvantages of this power system is the following.

1. The small capacity of the store, as it is located inside the fighting compartment, where there is little free space.

2. Low reliability of the grenade launcher due to dust, since there is no casing protecting the grenade launcher from dust and dirt.

A known power system for an automatic grenade launcher installed outside the tower, according to patent RU No. 2258189 from 01/08/04, IPC ⁷ F41A 23/24, which, according to the authors, is the closest technical solution to the claimed system and is selected as a prototype.

This power system for an automatic grenade launcher installed outside the tower consists of the neck of a grenade launcher casing pivotally connected to a pipe of a grenade launcher store.

The feed to the grenade launcher is through the pipe store grenade launcher and the neck of the casing.

The disadvantages of this power system is the following.

1. Low reliability, since the store is located on the roof of the tower, which increases the dimensions of the tank, and therefore the likelihood of its destruction by fragments and bullets.

2. The inability to use this power system for small-sized towers, since the grenade launcher’s store on the roof of small-sized towers is of very low capacity, and to increase its capacity it is necessary to increase its height, which further reduces the reliability of operation.

The objective of the invention is to increase the reliability of the power system of an automatic grenade launcher and the possibility of using it on small-sized towers without reducing ammunition.

The problem is solved in that in the power system of an automatic grenade launcher installed outside the turret of an armored object containing a magazine with a pipe and a neck of a grenade launcher housing hinged with a receiving window, an additional grenade feed sleeve is installed, installed between the pipe and the magazine, and fixed to the pipe in such a way that its exit window is deployed relative to the neck opening window by an angle equal to half the difference between the elevation and lowering angle of the grenade launcher, and the other end covers the neck of the grenade launcher store and, while the store is installed at the rear of the tower with the possibility of quick replacement, the pipe is made with the possibility of fixing on the tower and providing it with an inner diameter of coaxiality of the axis of twisting of the cartridge belt and its own axis, and rollers are mounted on the neck of the casing and the sleeve for supplying grenades and interaction with the cartridge belt, a spare magazine can be installed in the body of the armored object.

The introduction of a grenade supply sleeve and fixing the pipe to the tower allows the magazine to be installed on the inclined surface of the tower aft, which improves the reliability of the grenade launcher power system, since the store is located behind the tower profile and is protected from bullets and fragments. This also makes it possible to make the magazine quick-detachable, since the magazine is connected to the power supply system only through the neck, which is covered by the grenade feed sleeve, with a clearance sufficient for their joining (approximately 5 mm).

The rotation of the exit window of the supply hose relative to the inlet opening of the neck by an angle equal to half the difference in elevation and lowering of the grenade launcher provides the minimum dimensions of the grenade launcher power system.

An easily removable magazine must be made to fill it with tape with grenades, since in the combat position it is placed under the grenade launcher, which makes it extremely difficult to fill it with tape.

Grasping of the neck of the grenade launcher store’s sleeve by the grenade feed sleeve helps protect the store from rain and dirt, which also increases the reliability of the grenade launcher’s power supply system.

The introduction into the neck of the casing and the feed sleeve of the grenade rollers reduces the pulling force of the cartridge belt at the kinks, since the rolling friction force is less than the sliding friction force, which increases the reliability of the grenade launcher power system.

The ability to install a grenade launcher in the body of an armored object allows you to increase ammunition.

All of the above technical solutions make it possible to use the proposed power system for an automatic grenade launcher for small-sized towers without reducing ammunition and increasing the reliability of its operation.

The present invention is illustrated in graphic materials, where in Fig.1 shows a side view of the power system of the grenade launcher, in Fig.2 is a top view, in Fig.3 is a rear view.

The power system of the automatic grenade launcher 1, mounted outside the tower 2, consists of the neck 4 of the casing of the grenade launcher 3, pivotally connected to the pipe 5, mounted on the tower 2. In the pipe 5, the tape is turned. The minimum pipe length is determined by the formula:

;

;

where α _in - the maximum elevation angle of the grenade launcher,

α _n - the maximum angle of decline of the grenade launcher,

β is the angle of rotation between two adjacent links of the tape,

t is the pitch of the tape.

The inner diameter of the pipe 5 should ensure the coaxiality of the axis of twist of the cartridge strip and its own longitudinal axis. A grenade supply hose 6 is attached to the pipe 5, covering the neck 7 of the grenade launcher magazine 8.

While the output window of the supply sleeve 6 is deployed relative to the receiving window of the neck 4 of the casing 3 at an angle

.

.

Turning the exit window of the supply sleeve 6 relative to the receiving window of the neck 4 by an angle γ allows you to divide the twist angle of the cartridge strip evenly when lifting the grenade launcher to the maximum angle and decreasing to the minimum angle, i.e. in the extreme positions of the grenade launcher, the twist angle of the tape will be the same and equal to half the total angle of rotation of the grenade launcher vertically, i.e.

, при этом условии можно получить минимальную длину трубы 5, равную

, under this condition, you can get the minimum pipe length 5 equal to

.

.

This ensures the minimum dimensions of the power system of the grenade launcher. On the neck 4 and the supply sleeve of grenades 6 installed rollers 12 on the axes 13.

Shop 8 is installed on the tower 2 with the possibility of quick replacement with a spare store 9, installed in the body of the armored object 10.

The installation of the pipe 5 on the tower 2 and the introduction of the sleeve 6 allows you to place the grenade launcher store 8 on the inclined sheet 11 of the tower aft, which makes it possible to use this solution for small-sized towers and improves the reliability of the power supply system of the grenade launcher 1, since the magazine 8 is protected from bullets and fragments of armor towers.

Grasping sleeve 6 of the neck 7 of the store 8 allows you to protect the store and sleeve from dust, dirt and rain, which increases the reliability of the power system of the grenade launcher.

The implementation of the pipe 5 of length L and the rotation of the output window of the grenade supply sleeve relative to the receiving window of the neck 4 of the casing 3 by angle y allows you to get the minimum dimensions of the power supply system of the grenade launcher.

Installation on the neck 4 and the feed sleeve of the grenades 6 rollers 12 on the axes 13 with the possibility of rotation allows to reduce the pulling force of the cartridge belt at the bends, which increases the reliability of the work.

Placing in the body of the armored object 10 of the spare store 9 allows not to reduce the ammunition.

Thus, the proposed technical solution made it possible to use the power system of an automatic grenade launcher for small-sized towers without reducing the ammunition load and to increase the reliability of its operation in conditions of shelling, rain and mud.

Claims (2)

1. The power supply system of an automatic grenade launcher installed outside the turret of an armored object, containing a magazine with a pipe and a neck of a grenade launcher housing pivotally connected to it with a receiving window, characterized in that it is equipped with a grenade supply sleeve installed between the pipe and the magazine, one end of which is fixed to the pipe with the rotation of its output window relative to the receiving window of the neck by an angle equal to half the difference in elevation and lowering grenade launcher, and the other end covers the neck of the store, while the store mounted on the inclined surface of the stern of the tower with the possibility of quick replacement, the pipe is made with the possibility of fixing on the tower and ensuring its inner diameter is coaxial axis of twisting of the cartridge belt and its own axis, and on the neck of the casing and sleeve supply grenades mounted rollers with the possibility of rotation and interaction with cartridge tape. 2. The power system according to claim 1, characterized in that it contains a spare store installed inside the armored object.

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