RU2687334C1 - Assemblage method and kalashnikov double-barreled machine gun - Google Patents

Abstract

FIELD: weapons and ammunition.SUBSTANCE: invention relates to the small arms. Method of assembly, in which two standard Kalashnikov’s guns are connected in simple assembly operations in double-barreled machine gun. Kalashnikov’s double-barreled gun comprises two barrels, gas automatics, common cover of barrel receiver, rope mechanism of kinematics elements connection, two fire mode selectors.EFFECT: possibility of making two shots by pressing the trigger, higher accuracy of firing.11 cl, 20 dwg

Description

Technical field

The invention relates to automatic firearms.

The level of technology

Known double-barreled firearms "Double-barreled Kalashnikov assault rifle" patent RU 2619975 C2 dated May 22, 2017, authors I.M. Kotlyar, I.I. Kotlyar - a prototype.

Criticism of the prototype.

In the prototype, one pistol-type fire control handle is used, which requires reworking the attachment of the handle and both triggers.

It is inconvenient to use fan frontal fire when moving the barrels in one horizontal plane using one handle.

The prototype uses a single translator of fire modes, which also requires reworking the internal nodes of the automata.

The use of one translator of fire modes causes the use of identical firing modes from the left and right barrels (single or automatic), which excludes the implementation of the dosed firing of 2 cartridges with one press of the trigger.

The use of cylindrical support rollers does not allow to stabilize the U-shaped connecting element in the horizontal plane, as a result of which its vertical oscillations occur when firing and reloading, which leads to a displacement of the weapon and a decrease in the accuracy of firing.

DISCLOSURE OF INVENTION

A double-barreled Kalashnikov machine gun is assembled from two standard Kalashnikov assault rifles (hereinafter AK), while maintaining their tactical and technical characteristics, with the right positioning of the bolt handle and throwing the cartridge case to the right — the right barrel of the machine gun, and the left arm of the bolt handle and throwing the cartridge sleeve to the left (for example, AK-46) - the left barrel of the machine gun.

The right and left machines are located in the same horizontal plane at a short distance from each other and are rigidly fixed.

In the general receiver of the Kavlashnikov double-barreled machine gun there is a left bolt-frame FIG. 1 p. 1, metal gasket FIG. 1 p. 2, which is used for fastening the receiver boxes of the right and left barrels to each other, the right slide frame of FIG. 1 p. 3, reference coil assembly FIG. 1 p. 4, right barrel receiver FIG. 1 p. 5, left barrel receiver FIG. 1 p. 6, flexible U-shaped connecting element FIG. 1 p. 7, transmitting a pulse from one bolting frame to another in the process of firing or reloading.

The pistol-type fire control arms, the trigger mechanisms and the fire mode switches do not change and are located in the corresponding (left or right) AK. After assembly, the triggers are connected with a rigid jumper (“parallelized”).

The bolt carrier together with the bolt of the right AK is connected with the bolt and the bolt frame of the left AK by means of a U-shaped flexible element (for example, a spring), which rests on the guide coils, so that when the right AK bolt is in the rearmost position, the left AK bolt is in the extreme forward position of FIG. 1 (and vice versa).

Submission of cartridges in the machine is made of two horns, one for the left and one for the right AK.

As a sighting device can be used either standard sighting device, any optical device attached to the mount on the cover of a common receiver.

As a butt, a retractable butt stock, common to both AKs, is used, which is located on an axis passing in the middle between both trunks.

Technical result

Simplification of the design of the device, excluding modification of the internal parts of the weapon, ensuring dosed firing with two cartridges, in addition to the usual single and automatic firing modes, eliminating vibrations of the U-shaped connecting element in the vertical plane, which influenced the accuracy of the battle.

Simplification of the design is achieved by modifying only those parts of the automata that can be removed when performing incomplete disassembly, unlike the prototype, which required reworking of the trigger mechanisms, transferring one of the fire control knobs to the middle when the second was abandoned, combining translators of fire modes .

Dosed shooting with two cartridges, each time you press the trigger, becomes possible by installing different fire modes on the trunks (automatic on one, single on the other) with the help of independent translators of the fire mode.

The use of support coils with undercuts, representing a part of the circumference in lateral projection, allows the U-shaped connecting element to lie snugly into the coils, which reduces its vibration (movement in the vertical plane) during reloading, reducing the weapon shaking and improving the accuracy of fire.

Brief Description of the Drawings

FIG. 1 General receiver box with slide frames, support coil assembly and U-shaped connecting element. View from above.

FIG. 2 Gasket for connecting the receiver. Side view.

FIG. 3 Gasket for connecting the receiver. Back view

FIG. 4 Gasket for connecting the receiver. View from above.

FIG. 5 Trimming the regular covers of the right and left receiver boxes. View from above.

FIG. 6 Plate for connecting the covers of the right and left receiver boxes. View from above.

FIG. 7 Latch cover receiver. Side view.

FIG. 8 Latch cover the receiver. View from above.

FIG. 9 Frame reference support coils (blank)

FIG. 10 Racks support node coils (blank)

FIG. 11 support coil (blank)

FIG. 12 Support coil ready (cut)

FIG. 13 Knot support coils. Front view.

FIG. 14 Knot support coils. Side view.

Fig 15 Valve frame milled. View from above.

FIG. 16 Valve frame milled. Side view.

FIG. 17 butt slide frame. Side view.

FIG. 18 butt slide frame. Back view.

FIG. 19 Shoulder support. Back view.

FIG. 20 Shoulder support. Side view.

The implementation of the invention

The Kalashnikov double-barreled machine gun is made of two standard Kalashnikov assault rifles (hereinafter AK) with the right-hand gate valve and right-sided ejection (right barrel of the machine gun) and the left-hand gate and left-side ejection (left barrel of the machine gun), Two return springs with two guide rods, two butts and one regular bayonet of automata are not used.

ASSEMBLY METHOD

The method of assembling a Kalashnikov machine gun consists of the following steps:

1. Disconnect stores, remove the covers of receiver boxes, remove the return springs, bolts, disconnect the butts

2.1 We make the gasket. FIG. 1 p. 2 and side view of FIG. 2 from a steel strip with a thickness of at least 3 mm and a width of at least 25 mm, a length of at least 230 + 25 + 230 mm,

in which parallel grooves are milled along the entire length in the middle of FIG. 3 p. 10, 1-1.5 mm deep, for sliding the walls (runners) of the frame of the sliding butt.

At a given distance from the left end of the strip, a hole is made. FIG. 2 p. 8 for mounting the support coil assembly, a hole is made at a given distance from the right end of the strip. Fig. 2 p. 9 for the butt stop and the hole for fastening the latch of the stopper (not shown).

2.2 The gasket is bent over the stencil to get the letter “P” turned to the left at an angle of 90 degrees FIG. 2 so that the opening of FIG. 2 p. 8 appeared on the top of the gasket, and the hole of FIG. 2 p. 9 on the bottom.

3. On the right side wall of the receiver of the left barrel along the top edge, weld the upper part of the gasket, then the rest of the gasket are welded.

4. Install the left barrel receiver box with a welded gasket on a horizontal surface and, using a clamp, press the right trunk barrel box against the gasket.

5. In the channels of both barrels, with the muzzle of their parts, insert the rods of laser emitters of 7.62 mm caliber.

6. At a certain distance from the trunks, we establish a horizontal ruler and, moving the right trunk in the vertical plane, combine the laser marks horizontally.

7. In two-three places we seize the receiver’s clamped by clamp with a clamp, remove the clamp and finally boil the left wall of the receiver of the right-hand barrel by arc-welding to the gasket.

8. Prepare for mounting the trunk lid, for which we cut out the parts of the lid of the trunk boxes of the left FIG. 5 p. 11 and right trunk of FIG. 5 p. 12. in size, necessary for installation of the support coil assembly. FIG. 1 p. 4.

9. Insert the bolt frames with valves, return springs with guide rods and install the barrel covers on the appropriate trunks.

10. Cut out a steel sheet, for example, 1.5 mm thick, the plate of FIG. 6 (top view) stencilled, bent along the line of FIG. 6 p. 13 at an angle of 90 degrees up, and then along the line of FIG. 6 p. 14 down 90 degrees ¸ bend the plate along the line of FIG. 6 p. 15 at an angle that ensures contact with the back of the covers of the right and left barrels.

11. Lay the plate in FIG. 6 symmetrically on top of the barrel of the right and left barrels to form a common receiver and weld around the plate perimeter.

12. Press the latches of the receiver boxes, remove the common lid formed, remove the return springs with the guide rods, and the gate frames of both barrels.

13. Disconnecting the return springs with guide rods from the latch. FIG. 7 and on the cylindrical protrusion we make a horizontal cut. FIG. 7 p. 16. We take a tension spring with the required dimensions and parameters for elasticity of Fig. 8 p. 17, stretch several turns in the middle and insert the straightened part into the kerf of FIG. 7 p. 16.

Hooks at the ends of the spring are fixed in the holes on the rear wall of the receiver of the right trunk. Similarly, we remake the latch for the left trunk. These two latches serve to fix the common cover of the receiver.

14. We make the frame of the node supporting coils. FIG. 1 p. 4.

To do this, from a steel sheet with a thickness of 2 mm, we cut a blank of a U-shaped shape. FIG. 9 and drill holes p. 20 for the axes of the support coils. Bend along the line of FIG. 9 p. 18 at an angle of 90 degrees upward, then along the line of p. 19 we bend in the same direction 90 degrees.

15. From the same steel sheet, we make two racks for fastening and installing the frame of the support coil assembly. FIG. 10 p. 21 and p. 22

We bend both workpieces along line p. 23 at an angle of 90 degrees upwards, then along line p. 24 at an angle of 90 degrees upwards. The legs of the support coil assembly are shifted and spot welded to each other. Then we weld the frame of the support coils to them.

16. Turning two coils. FIG. 11 with groove p. 25 with a size of 0.6 of the spring diameter of the U-shaped element. Drill holes FIG. 11 p. 26 in the center for the axes of the coils, at the top and bottom of the hole increase in diameter to install washers or cotter pins. Then cut each coil. FIG. 12 p.27 for placement on the frame of the node supporting coils.

17. Top and bottom of each coil. FIG. 12 are installed in the frame of the support coil unit, connected by axles and secured with lock washers or cotter pins. The support coil assembly is assembled in FIG. 13 (front view), FIG. 14 (side view).

18. Change gate frames. On the bolt carrier of the right barrel, we mill the left half of the “pipe” in which the return spring was located, along vertical lines passing along the axes of FIG. 15 p. 28 and p. 29 to their intersection at a distance of about 45 mm from the right end of the slide frame and the depth of the "pipe" diameter. FIG. 15 is a top view of a modified slide frame; FIG. 16 is a side view. Hatching shows the remnants of the walls after milling. On the bolt carrier of the left barrel, respectively, we mill the right half of the "pipe". On each frame we drill a hole for a “secret” screw fixing the U-shaped connecting element.

19. As the spring of the U-shaped element, a steel round twisted tension spring is used, the length of which provides for the simultaneous arrangement of the gate frames at the end points, namely, the left one in the extreme forward position of FIG. 1 p. 1, and right in the extreme rear position of FIG. 1 p. 3 (and vice versa). The diameter of the spring corresponds to the diameter of the standard return spring of a Kalashnikov assault rifle.

20. Assemble the prepared nodes. Insert the bolts, respectively, the right and left barrels. We insert the ends of the spring of the U-shaped element into the holes for return springs. Fix the ends of the U-shaped connecting element in the gate frames with the help of “secret” screws. Support the oval part of the spring of the U-shaped element with the assembly of the supporting coils, inserting it into the gasket slot to connect the receiver boxes, fasten the latches of the receiver box of the left and right barrel with springs, close the common receiver box.

21. We manufacture a retractable butt stock consisting of a sliding frame of FIG. 17, shoulder rest of FIG. 19 and the butt pads inserted into the shoulder rest (not shown).

Channel of steel sheet 1.5 mm thick, bend so that the side walls (runners) looked outward. FIG. 17 side view. In the lower part, two holes are made for the latch securing the butt slide frame in the extended or retracted state. FIG. 17 p. 30 and the insert is welded. FIG. 17 p. 31 for attaching the backing pad shoulder.

The lower side walls of the channel of FIG. 18 p. 32 (runners) are ground and made shorter than the upper FIG. 18 p. 33 (which should not interfere with the mounting of the support coil assembly). In the insert of FIG. 17 p. 31 a hole is made. FIG. 18 p. 34 for a spring-loaded bolt that serves to attach the substrate of the shoulder rest.

Inside the sliding frame, several X-shaped inserts are welded to stiffen the structure.

The support for the shoulder rest is made of plastic or metal in the form of an ellipsoidal bowl with a hole in the middle of FIG. 19 p. 35 and a molded or extruded cross with FIG. 19 p. 36, which allows (when the spring-loaded stop is thrown off) to transfer it to a vertical or horizontal position and fix it.

The butt pad (not shown) is molded to the shape of the shoulder of the shooter, taking into account the ergonomic requirements of the plastic elastic material and is attached to the shoulder rest using latches.

The sliding frame of the butt is inserted into the gasket connecting the receiver, and is fixed by a latch (not shown) at the bottom of the gasket in the extended or retracted position.

The work of the Kalashnikov machine gun.

The initial state:

- translators of fire regimes of both barrels in the fuse position,

- the bolt carrier of the right in the extreme forward position, the bolt carrier of the left trunk in the extreme rearward position,

- horns with cartridges are not connected.

Shooting bursts in automatic mode

The translators of the fire regimes of both barrels are set to automatic.

Move the cocking handle of the right barrel back to the stop, the trigger mechanism of the right barrel is cocked.

Translators of fire regimes of both barrels translate into position

fuse.

We connect horns with cartridges for the left and right barrels.

The translators of the fire regime of the right and left barrels are translated into the position

automatic fire.

The left-hand plunger is moved back to the stop.

The trigger mechanism of the left barrel is cocked. The force transmitted through the U-shaped connection, moves the bolt carrier of the right barrel to its extreme front position, with the cartridge from the horn being sent to the right-barrel chamber.

The weapon is in combat condition.

When you click on any of the tightly connected (paralleled) triggers and hold it:

- a shot is made from the right barrel,

- send the cartridge to the left barrel chamber, automatic shot from the left barrel,

- Send the cartridge to the right barrel chamber, an automatic shot from the right barrel.

Stop pressing the trigger - the shooting bursts stops. On subsequent presses, the automatic queue shooting resumes. The duration of the queue depends on the duration of pressing the trigger. Shooting is conducted with doubled rate of fire in comparison with the Kalashnikov machine gun.

Shooting single shots

The translators of the fire regimes of both barrels are set to the single fire position.

Move the cocking handle of the right barrel back to the stop, the trigger mechanism of the right barrel is cocked.

The translator of the fire mode of the right and left barrels is translated into the position of the fuse.

We connect horns with cartridges of the left and right trunks.

Translators of the fire regime of the right and left barrels are translated into the position of a single fire.

The left-hand plunger is moved back to the stop.

The trigger mechanism of the left barrel is cocked. The force transmitted through the U-shaped connection, moves the bolt carrier of the right barrel to its extreme front position, with the cartridge from the horn being sent to the right-barrel chamber.

The weapon is in combat condition.

When you click on any of the tightly connected (paralleled) triggers and hold it:

- a shot is made from the right barrel,

- send the cartridge to the left barrel chamber,

When you press the trigger again:

- a shot is made from the left barrel,

- Send the cartridge to the right barrel.

The next time you press the trigger:

- a shot is made from the right barrel,

- Send the cartridge to the left barrel.

Thus, shooting is conducted by single shots alternately from the right and left barrels.

Dosed shooting with two bullets.

The left barrel fire mode translator is set to automatic mode, the right barrel fire mode translator is set to the single fire position.

Move the cocking handle of the right barrel back to the stop, the trigger mechanism of the right barrel is cocked.

The translator of the fire mode of the right and left barrels is translated into the position of the fuse.

We connect horns with cartridges of the left and right trunks.

The translator of the fire mode of the right barrel is translated into the single fire position, the left barrel into the automatic position.

The left-hand plunger is moved back to the stop.

The trigger mechanism of the left barrel is cocked. The force transmitted through the U-shaped connection, moves the bolt carrier of the right barrel to its extreme front position, with the cartridge from the horn being sent to the right-barrel chamber.

The weapon is in combat condition.

When you click on any of the rigidly connected (paralleled) triggers and hold it:

- a shot from the right barrel,

- send the cartridge in the left barrel,

- automatic shot from the left barrel,

- Send the cartridge to the right barrel.

Shooting stops as the right barrel is in single-fire mode. Produced two shots: (one from the right and left barrels.).

After the release of the trigger and the subsequent pressing, dosed shooting is again carried out two shots.

Transfer to the mode of aimed aiming shooting, after firing in bursts

The translator of the fire mode of the right barrel is set to single mode, while the left barrel remains in the automatic fire position.

1. If, after stopping the firing by bursts, the cartridge was sent to the right barrel, then after pressing the trigger and holding it, the following is performed:

- a shot from the right barrel,

- send the cartridge in the left barrel,

- automatic shot from the left barrel,

- send the cartridge to the right barrel,

Shooting stops because the right barrel is in the position of a single fire. In total, when you first press the trigger, two shots are fired: from the right, then from the left barrel.

Subsequent pressings on the trigger is dosed shooting shot from the right, shot from the left barrel, that is, just two shots, as described earlier.

2. If, after stopping the firing by bursts, the cartridge was sent to the left barrel, then after pressing the trigger and holding it, the following is performed:

- shot from the left barrel,

- send the cartridge to the right barrel,

The fire stops, as the right trunk in single-fire mode. Produced one shot. Pressing the trigger again produces:

- a shot from the right barrel,

- send the cartridge in the left barrel,

- automatic shot from the left barrel,

- Send the cartridge to the right barrel.

Shooting stops as the right barrel is in single-fire mode. Two shots were fired: from the right and left barrels.

After the release of the trigger and the subsequent pressing, dosed shooting is again carried out two shots.

When conducting aimed fire with a single or metered fire, the shoulder rest of the butt can be fixed vertically, and when running a fan fire with an emphasis on the trunks on the bipod or paravestite, it is translated into a horizontal position.

Claims (18)

1. The method of assembling a double-barreled Kalashnikov machine gun from two Kalashnikov assault rifles with right-hand and left-hand shutter handles, consisting of the following steps: - connection of the barrel boxes of both automata by welding with a connecting gasket after the barrels are installed parallel to each other in the same horizontal plane, - manufacture of a removable support coil assembly, - manufacture of connecting U-shaped element, - modification of the right and left stem gate groups, - modification of barrel covers and their latches, - manufacture retractable butt, - installation of all modified and manufactured elements in automatic machines and connecting gasket. 2. A method according to claim 1, characterized in that a U-shaped steel plate welded by spot welding to the right wall of the receiver of the left trunk and the left wall of the receiver of the right trunk is used as the connecting gasket. 3 The method according to claim 1, characterized in that modified gate frames of automata are used as gate groups. 4. The method according to p. 1, characterized in that the node supporting coils are made removable and installed on the connecting strip. 5. A double-barreled Kalashnikov machine gun, consisting of two Kalashnikov assault rifles without two regular butts, two recoil springs, two guide rods and one bayonet, a steel U-shaped plate for connecting barrel boxes, modified bolt frames, retractable butt. 6. Double-barreled machine gun according to claim. 5, characterized by the use of two standard fire control handles. 7. Double-barreled machine gun according to claim. 5, characterized by the use of two rigidly connected triggers. 8. Double-barreled machine gun according to claim. 5, characterized by the use of two independent switches fire mode. 9. The double-barreled machine gun according to claim 5, characterized by the use of two support coils, each of which has recesses, representing in the lateral projection a part of a circle, the diameter of which depends on the thickness of the U-shaped coupling element used. 10. Double-barreled machine gun according to claim 5, characterized in that each of the support coils consists of two parts, between which is mounted to the frame of the node supporting coils. 11. The double-barreled machine gun according to claim 5, characterized in that the shoulder rest of the retractable butt can be fixed vertically or horizontally, depending on the shooting mode.

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