RU2523724C1 - Protection device of barrel bore of tank gun - Google Patents

Abstract

FIELD: weapons and ammunition.

SUBSTANCE: device comprises a remotely controlled plug mounted on the muzzle. The plug is made of one or more parts, each of which is pivotally mounted in the housing and in an open position is withdrawn from the zone of action of the powder gases during firing. To exclude triggering the shell fuse when firing in an emergency situation with a closed plug, in each part of the plug there is easily removable liner, on which sampling is made, closed by the sealing gasket of heat-resistant material.

EFFECT: increased combat effectiveness of the tank by preventing the complete failure of its ammunition due to the ingress of dust and dirt in the bore.

4 cl, 3 dwg

Description

The invention relates to the field of military equipment and can be used in cannon armament of tanks to protect the interior of the barrel from environmental influences.

Protecting the barrel bore from foreign objects is an urgent task, since dust, soil, etc., get into the barrel bore. leads to a sharp inhibition of the projectile during firing and, as a result, to deformation or rupture of the barrel, which leads to the decommissioning of the combat vehicle. Known for protecting the bore with a tarpaulin cover worn on the muzzle of a tank gun, included in the set of spare parts, tools and accessories for guns 2A20, 2A21, 2A46, 2A46M, 2A46M-1, 2A46M-4 and 2A46M-5 (see 125- mm tank guns 2A46M, 2A46M-1, 2A46M-4 and 2A46M-5. Technical description and instruction manual. 2A46M. TO, p. 175).

The disadvantages of the known device for protecting the muzzle of the barrel are:

- the lack of practical use of the protection of the barrel when firing, including in the process of movement. Dust and sand fall into the bore, which leads to rupture (swelling) of the barrel and the failure of the machine,

- the need to stop the machine to remove the cover before the shot and the crew to leave the fighting compartment, which can lead to its defeat in combat conditions.

There is also a device for protecting the barrel of a tank gun (see patent RU 2133430 C1, publ. 2003), consisting of a plug, drive, flag and clamp.

The disadvantages of this device are:

- the need for the first shot of armor-piercing - anti-caliber projectile,

- the lack of reliable information about cases of sticking a barrel into the ground with subsequent rupture of the cover and getting into the trunk of the ground, which can lead to a break in the barrel when firing or loss of combat readiness by the tank.

The prototype is a device for protecting the barrel of a tank gun (see patent RU 2227258 C1, publ. 04/20/2004), containing a clamp, a plug on the muzzle of the barrel, an electromagnet, two-arm levers, compression springs, metal bands, wiring with a button on the remote control of the gunner . The cap is made opening, and its lower edge is connected with the axis of the tie rod of the clamp, on both sides, on the threaded protrusions of which the bases of the left and right two-arm levers are fixed. The upper shoulders of the two-arm levers are pivotally connected to the middle part of the opening plug and are spring-tightened to the muzzle of the gun. The lower shoulders of the two-arm levers are rigidly interconnected and articulated with the core of the electromagnet, whose body is fixed with metal bands from below on the gun barrel. The contacts of the electric circuit of the windings of the coil of the electromagnet are connected with a button on the remote control at the gunner to open the barrel of the gun.

The disadvantages of the known device for protecting the channel of the barrel of a tank gun are:

- finding the elements of the device (plugs, springs, etc.) in the zone of influence of jets of hot gases during firing,

- no measures have been taken to neutralize the inertial loads on the device parts (electromagnet anchor, plug, etc.) when the implement is rolled back (overload during rollback is 600 g),

- the location of the drive (electromagnet) at the end of the pipe affects the balance of the gun relative to the axis of the pins,

- fastening the elements of the device on the pipe does not ensure its fixation in case of overloads that occur when the barrel rolls back,

- during the firing of a shot with the plug closed (they forgot to open, the drive did not work, etc.), the device breaks down, which can lead to the operation of a CS or OFS projectile and damage to the object.

The presence of these disadvantages makes this device difficult to implement in practice.

The task to which the claimed technical solution is directed is to increase the reliability and safety of the operation of cannon weapons.

The technical result is to increase the combat effectiveness of the tank by preventing complete failure of its weapons due to dust and dirt entering the barrel, as well as reducing human and financial resources associated with the replacement of damaged and the manufacture of new barrels.

The problem is solved, and the specified technical result is achieved by the fact that the device for protecting the channel of the barrel of the tank gun is made in the form of a remotely controlled plug installed on the muzzle. The plug can be made of one or more parts, when fired from a gun, it is in the open position and removed from the zone of action of powder gases. When shooting in an emergency with a closed plug, to exclude the fuse of a projectile, in each part of the plug there is an insert that can be easily removed when the projectile moves. On the insert, a sample was made for the passage of the projectile fuse, closed with a sealing gasket of heat-resistant material. Remote control of the plug with the control cable is made in the form of an electromechanical drive mounted on the tank tower, which consists of an electric motor with a gearbox connected with plugs, a slider, intermediate rollers, drive rollers, torsion springs and compression springs. The drive is controlled from the electrical circuits of the tank and the console located in the fighting compartment, on which a light indication of the position of the plugs “open” and “closed” is installed. To exclude the influence on the device of elastic deformations and thermal expansion of the barrel during firing, the device body is mounted on the muzzle of the barrel by means of elastic elements.

The proposed layout solution of the device provides reliable, without failures, protection of the bore due to remote control of the plug, placement of the device elements in the housing and withdrawal of the plug in the open position from the zone of influence of jets of hot gases when fired from a gun. Placing the electric drive on the tank turret does not affect the balance of the gun relative to the axis of the pins. The mounting of the device on the muzzle of the barrel with the help of elastic elements eliminates the impact on the parts of the device, elastic deformation and thermal expansion of the barrel that occur during firing from the gun, and also neutralize the inertial loads that occur during the recoil of the gun, ensuring reliable fixation of the device during overloads. In an emergency, when the plug is not opened, the ammunition is excluded, since when it passes through the protection device with a shell, the liners from the plug are easily torn off, opening the barrel for free passage of ammunition. The trunk channel is protected during firing from a place and during movement, without crew members leaving the vehicle. Excluded cases of hit in the bore of the trunk of the soil, dust, sand and loss of combat readiness of the tank.

The essence of the proposed technical solution is illustrated by drawings, which depict:

figure 1 is a top view of a device mounted on a gun with a plug of two parts, each of which is installed in the housing;

figure 2 is a view A of a plug made of two parts with inserts;

figure 3 is a section bB in figure 1, mounting the device on the gun.

The protection device for the channel of the barrel of the tank gun contains mounted on the muzzle of the barrel 1 (figure 1) remotely controlled plug 2 (figure 2). The plug 2 may be made of one or more parts. In the proposed layout solution, the plug 2 is made of two parts 3 and 4, each of which is pivotally mounted on the axis 5 in the eyes of the housing 6 (figure 1). On each part 3 and 4 (figure 2) with the help of brackets, an insert 7 is installed, on which a sample 8 is made, closed by a sealing gasket 9 made of heat-resistant material. Remote control of the plug 2 is made in the form of an electromechanical drive mounted on the tank turret containing an electric motor 10 (Fig. 1), a self-braking worm gearbox 11, connected to each part 3 and 4 (Fig. 2) of the plug 2 using a control cable 12 (Fig. 1), the slider 13, the intermediate rollers 14, the drive rollers 15, which are also the axes 5 (figure 1) for the plug 2, two torsion springs 16 (figure 2) and a compression spring 17 (figure 1). To mitigate the impact of the plug 2 in the open position on the housing 6, a buffer 18 is installed. The electromechanical drive is controlled from the tank’s electrical circuits (not shown) and the gunner’s control panel 19 located in the tank’s fighting compartment, on which the light indication “open” and “closed” is installed "The position of the plug 2. The mounting of the housing 6, in which the device parts are located on the muzzle of the barrel 1, is made using a split ring 20 (Fig. 3), elastic elements 21, a clamp 22 and mounting parts 23. Installation of devices and the tank does not require rework gun and the object and can be performed as a factory - the object, and at repair shops and places of operation.

The operation of the device is illustrated when the combat vehicle makes a march, firing and sticking the trunk into the ground.

The main position of the plug 2 is “closed”. In this position, she is in the march, the movement of the object in battle formation, parking and storage. In the closed position, both parts 3 and 4 of the plug 2 are held by a self-braking worm gear drive 11. On the remote control 19, the light indication of the closed position of the plug 2 is turned on.

When marching, the closed plug 2 protects the barrel 1 from dust and sand, and when the gun 1 is pushed into the ground - from the ingress of environmental products into the barrel.

Before firing a shot by a crew member from the control panel 19 or from the object’s control circuits (not shown), the drive motor 10 is turned on, a control cable 12 is pulled from the drive pulley, which is pulled by the compression spring 17. Torsion springs 16 translate plug 2 into the “open” position and from The object's control circuit is given permission to shoot. Softening the impact of the plug 2 on the housing 6 is carried out by the buffer 18. On the remote control 19, the light indication of the open position of parts 3 and 4 of the plug 2 is turned on.

After firing from the remote control 19, the drive motor 10 is turned on, and parts 3 and 4 of the plug 2 with the control cable 12 are transferred to the closed position.

In an emergency, when firing a cannon with a closed plug 2, the projectile passes through the fuse through samples 8 in the inserts 7 and the body breaks easily removable inserts 7 from both parts 3 and 4 of the plug 2, which further do not interfere with the passage of the projectile. After the crew member eliminates the problems in the protection device, the inserts 7 are replaced with new spare parts.

Thus, the use of the device reliably protects the channel of the barrel of the tank gun and eliminates the ingress of foreign objects (sand, soil, etc.), rupture or swelling of the barrel during firing. The need for human and financial resources associated with the replacement of damaged and the manufacture of new trunks is reduced. The combat effectiveness and the service life of the tank gun are significantly increased.

Claims (4)

     1. The device for protecting the channel of the barrel of a tank gun, containing a controlled plug installed on the muzzle, characterized in that the remotely controlled plug is made of one or more parts, each of which is pivotally mounted in the housing and in the open position is removed from the zone of action of the powder gases during firing . 2. The device according to claim 1, characterized in that in order to prevent the fuse of the projectile from firing during an emergency with a closed plug, an easily removable insert is installed in each part of the plug, on which a sample is made for the passage of the projectile fuse, closed with a sealant made of heat-resistant material. 3. The device according to claim 2, characterized in that the remote control of the plug with the control cable is made in the form of an electromechanical drive mounted on the tank tower. 4. The device according to claim 3, characterized in that in order to exclude the influence on the device of elastic deformations and thermal expansion of the barrel during firing, the body is mounted on the muzzle of the barrel by means of elastic elements.

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