RU2200290C2 - Ammunition feed system of automatic gun - Google Patents

Abstract

FIELD: military equipment, gun mounts with belt ammunition feed. SUBSTANCE: ammunition feed system of automatic gun has ammunition magazine comprising several compartments with covers formed by vertical partitions. Compartments come in the form of boxes positioned in housing. Rollers rolling over guides of housing are installed outside of upper part of boxes. Bosses in the form of rollers are mounted with uniform spacing in intervals between rollers. Manual drive of boxes coming in the form of handle with reduction gear, output vertical cardan roller kinematically coupled to two cardan rollers located in horizontal plane around edges of housing is put on housing. Sprockets interacting with rollers and bosses of boxes are put on ends of rollers and are coupled kinematically to them. Spring-loaded jaw clutches engaged by levers hinged in housing are installed in central part of rollers. U-shaped covers have form of bell-cranks contacting vertical wall of box with one arm and ammunition with another arm directed towards feed of ammunition belt. U-shaped arm of cover is smoothly bent upwards to form throat for appearance of ammunition belt from box. Each box is connected to adjacent box by means of springy clamp. EFFECT: raised functional reliability of ammunition feed system of automatic gun with large ammunition equipment. 3 dwg

Description

 The invention relates to military equipment and can be used in rifle-gun installations with tape ammunition.

 A known power system for automatic weapons [1] in the form of an annular box bounded by two cylindrical walls. The box is divided into radial compartments by partitions, leaving free space on top.

 A well-known store for automatic small arms [2], which has a device for receiving cartridges. The store contains an endless chain with sockets for cartridges. The chain during movement provides the supply of cartridges to the outlet. The store contains a housing with a guide for the chain and cartridges. An outlet is made in the upper wall of the housing so that the cartridges can be moved up to receive them with a weapon receiving device. An additional cartridge magazine allows you to store an additional number of cartridges outside the guide.

 The outlet end of the additional magazine is located near the additional hole in the upper wall. A movable shutter is located under the output end of the additional magazine, which prevents additional cartridges from entering the free sockets of the circuit. When manually changing the direction of movement of the chain, the flapper is displaced, which allows the additional cartridge to fall into the socket of the chain under the action of gravity when there is no cartridge in this socket and when the empty socket is under the additional hole.

 The disadvantage of these systems can be attributed to their large dimensions. This complicates the use of structures in a limited volume of military vehicles, requiring increased ammunition in combination with the small dimensions of the fighting compartment.

 Known cartridge magazine [3], which contains several compartments formed by vertical partitions. The compartments housed cartridges fastened with tape. Each compartment has a lid that is pivotally mounted in a vertical partition to open or close the compartment. The open position of the lid corresponds to the placement of cartridges inside the compartment, the closed position corresponds to the release of the compartment from the cartridges. The compartment lid protrudes from the partition in the radial direction, forming a continuous surface with it. In the open position, covers with corresponding partitions form common vertical walls. In the closed position, the covers are perpendicular to the partitions.

 The disadvantage of the store is the low reliability of its operation during installation movement. If the compartment is not fully used up, the cartridge belt, under the action of inertia forces, can move into it from the neighboring compartment and become confused, which leads to a delay in firing of the automatic gun.

 The objective of the invention is to increase the reliability of the power system of an automatic gun with a large ammunition load.

 The problem is solved in that in the power supply system of an automatic gun containing a cartridge magazine consisting of several compartments with covers formed by vertical partitions, compartments are made in the form of boxes placed in the housing. In the upper part of the boxes, rollers are rolled outside, rolling along the guides of the housing. In the intervals between the rollers, the bosses are installed with equal pitch in the form of rollers. A manual gearbox is installed on the body, made in the form of a handle with a reducer, an output vertical cardan shaft, kinematically connected with two cardan rollers located in a horizontal plane around the perimeter of the body. At the ends of the rollers, the kinematically associated sprockets are articulated to interact with the rollers and bosses of the boxes. In the middle part of the rollers, spring-loaded cam couplings are installed, which are switched off by levers pivotally fixed in the housing. The covers are made U-shaped in the form of two-shouldered levers, one shoulder in contact with the vertical wall of the box, and the other directed towards the feed belt, with cartridges, while the U-shaped shoulder of the lid is smoothly curved upward, forming the neck for the cartridge tape to exit the box, and each box is connected to an adjacent box using a spring clip.

 The proposed technical solution is illustrated by the attached graphic materials, in which Fig. 1 shows a general view of the power supply system of an automatic gun, a side view, in Fig. 2 is a top view of the box, in Fig. 3 is a diagram of the laying of the cartridge belt in the box.

 The power system of the automatic gun consists of boxes 1, placed in the housing 2 (figure 1). In the upper part of the boxes 1, rollers 3 are installed, rolling along the guides of the housing 2. In the intervals between the rollers 3, bosses 4 are mounted rigidly fastened to the walls of the boxes 1. A manual gearbox is installed on the housing 2, which consists of a handle 5, a gearbox 6, an output vertical cardan roller 7. The roller 7 is kinematically connected with two cardan rollers 8 located in a horizontal plane. At the ends of the cardan rollers 8, sprockets 9 are pivotally fixed kinematically connected to them. Asterisks 9 interact with rollers 3 and bosses 4 boxes. In the middle part of the cardan rollers 8, spring-loaded cam clutches 10 are installed, which are turned off by levers 11 pivotally mounted in the housing 2.

 In the upper part of the boxes 1, U-shaped covers 12 are installed (FIGS. 2, 3), on which the cartridge strip 13 is fixed. Each box is connected to the neighboring one using a spring clip 14.

 The power system of the automatic gun works as follows. Boxes 1 are equipped with cartridges 13 outside the housing 2. Using a crane, the box is fed into the housing 2 and installed by rollers 3 on the guides of the housing. One box is installed on the left side, and the other on the right, while the rollers 3 start up under the sprockets 9. By rotating the handle 5, the boxes are moved apart in different directions in the direction indicated by the arrows.

 The next two boxes are fed to the vacated space. Between themselves, the boxes are fastened with spring brackets 14, and the cartridge belts are coupled using a special mechanism. When firing an automatic gun as the ammunition is used up from one box, the cartridge strip starts to be selected from the adjacent box, while the U-shaped cover 12 prevents the tape from entering the empty box. In addition, the U-shaped cover 12 acts as a retainer for the cartridge strip, preventing the inertial movement of the tape during installation movement. When the entire ammunition is used up, the boxes are removed from the hull in the reverse order. To prevent breakage of the teeth of the kinematic pairs of the manual gearboxes, levers 11 are provided in its design to turn off the cam clutches 10.

 Thus, the proposed technical solution has improved the reliability of the power system of an automatic gun with a large ammunition load.

Sources of information
1. Application 2049199 dated 04/30/71, France - an analogue.

 2. Patent 4681019 from 07.21.87, the United States - an analogue.

 3. Patent 4393746 from 07.19.83, the United States - a prototype.

Claims (1)

 The power supply system of an automatic gun, comprising a cartridge magazine consisting of several compartments with covers formed by vertical partitions, characterized in that the compartments are made in the form of boxes placed in the case, in the upper part of the boxes rollers are rolled outside, rolling along the guides of the case, in between with the help of rollers, bosses are installed with equal pitch in the form of rollers, a manual gearbox is installed on the body, made in the form of a handle with a gearbox, an output vertical cardan shaft, nematically connected to two cardan rollers located in a horizontal plane around the perimeter of the housing, kinematically connected sprockets are attached to the ends of the rollers, interacting with the rollers and bosses of the boxes, in the middle of the rollers are spring-loaded cam couplings, which are turned off by levers pivotally mounted in the housing, and the covers are made U-shaped in the form of two-shouldered levers, one shoulder in contact with the vertical wall of the box, and the other directed towards the tape feed, with Atronach, wherein the U-shaped arm cover smoothly curved up to form a neck to exit the tape cartridge out of the box and each box is connected with an adjacent via spring bracket.

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