RU2794605C2 - Device for checking the cleanliness of the barrel channel - Google Patents

Abstract

FIELD: mechanical engineering; armoured weapons.

SUBSTANCE: device for checking the cleanliness of the gun barrel contains: a rotating conveyor (VT), a cassette lifting mechanism, a pallet removal mechanism, a rammer, an electromechanical gun stopper, a memory device, a junction box, a control panel, a loading panel, an indicator of the number of shots, an electrical installation kit, a laser distance sensor. The laser sensor is mounted on a folding bracket with a drive motor and an electrical installation kit. The bracket with the sensor and with the drive motor is installed on the body of the device, which, with the help of a locking pin, is installed in the lugs of the gun stopper.

EFFECT: prevention of damage to a tank gun during a shot if foreign objects are present in the barrel.

1 cl, 2 dwg

Description

The invention relates to mechanical engineering, namely to armored weapons.

In the process of combat use of T-72B3 tanks, there are cases of sticking the bore of the gun barrel into the ground, for example, when the tank moves over rough terrain and overcome obstacles. When sticking the gun, soil, snow, sand and other foreign objects get into the bore, when firing, in this case, the gun barrel swells or breaks, which leads to the disruption of the combat mission and to the loss of tank performance. The elimination of such a failure can only be carried out by replacing the gun, which has a significant cost, and the technological recovery process is characterized by increased complexity and laboriousness of the work performed and requires the involvement of highly qualified repairmen.

To prevent foreign objects from entering the bore after sticking the gun into the ground, the following methods can be used:

- mechanical overlap of the cut of the cannon barrel;

- the use of devices that signal to crew members about the presence of foreign objects in the bore.

Previously, attempts have already been made to protect the bore by mechanically closing the gun barrel. As an example of a decision, one can cite decision 38 of the Research Institute of Armored Armament and Equipment. The Institute has developed various muzzle devices, such as:

- safety device;

- safety device of inertial-mechanical action;

- a safety device of inertial-mechanical action with closing the muzzle of the barrel. Tests of these devices took place in 1957 at the Institute's test site.

The simplicity of the proposal had a number of disadvantages:

- delay in opening the damper when dirt and moisture enter the swivel joint;

- failure of inertial mechanisms, and as a result, a breakage of the barrel when firing a shot with closed shutters;

- high probability of mechanical damage to muzzle devices when stuck.

In this regard, the described technical solutions have not received distribution. In the future, in the production of guns, muzzle brakes were used, which reduced the likelihood of foreign objects entering the bore. The use of muzzle brakes is easy and reliable to use. However, their use is not able to completely eliminate the ingress of foreign objects into the bore and leads to an increase in the length of the gun barrel, and, consequently, increases the likelihood of sticking the gun into the ground. In this regard, it is most acceptable to use sensors that signal the crew about the presence of foreign objects in the bore. The signal from the sensor can be used to signal the crew members about the presence of foreign objects, or to send a command to the actuators to stop firing.

The closest technical solution chosen as a prototype is the automatic loader (A3) of the T-72B3 tank [Product 184 (184-1). Technical description. 184.IE-8. - 170 pp.], containing a rotating conveyor, a cassette lifting mechanism, a pallet removal mechanism, a rammer, an electromechanical gun stopper, a memory device, a junction box, a control panel, a loading panel, an indicator of the number of shots, an electrical installation kit.

The disadvantage of this autoloader is the lack of a device capable of preventing a shot in the presence of foreign objects (dirt, sand, snow, etc.) in the barrel, thereby eliminating the inflation or breakage of the gun barrel.

The technical problem solved by means of the developed design is to prevent damage to the tank gun during the shot in the event of foreign objects in the bore.

The technical result is achieved by the fact that the device for checking the cleanliness of the gun bore contains: a rotating conveyor (VT), a cassette lifting mechanism, a pallet removal mechanism, a rammer, an electromechanical gun stopper, a memory device, a junction box, a control panel, a loading panel, an indicator of the number of shots, electrical installation kit. This device is supplemented by a laser distance sensor, which is mounted on a folding bracket with a drive motor and an electrical installation kit. A bracket with a sensor and a drive motor is mounted on the body of the device, which, using a locking pin, is installed in the eyes of the stopper 6 of the gun, which is removed when preparing the tank for firing.

A comparative analysis with the prototype shows that the device for checking the cleanliness of the bore of the gun barrel differs from the prototype in its design and the presence of a laser distance sensor, which is mounted on a folding bracket with a drive motor and an electrical installation kit, which are mounted on the device body, using a locking pin, which is installed in the lugs gun stopper, removed when preparing the tank for firing.

Thus, the proposed device for checking the cleanliness of the bore of the gun barrel meets the criterion of "novelty".

Comparison of the claimed solution with other technical solutions in this field of technology did not allow us to identify solutions with similar features, which allows us to conclude that the "significant differences" criterion is met.

The solution to the problem of effective protection against the ingress of foreign objects into the cannon barrel when the tank performs fire missions is illustrated by drawings. In FIG. 1 shows a device for checking the cleanliness of the bore of the gun barrel mounted on the breech; in fig. 2 shows the electrical circuit for connecting the device for checking the cleanliness of the bore of the gun barrel in the electrical circuit of the automatic loader.

The device for checking the cleanliness of the bore of the gun barrel consists of a laser distance sensor (1), which is mounted on a folding bracket (2) with a drive motor (3) and an electrical installation kit. A bracket with a sensor and a drive motor is mounted on the body (4) of the device, which, with the help of a locking pin (5), is installed in the eyes of the stopper (6) of the gun, which is removed when preparing the tank for firing.

The device works as follows.

When you press the AZ ON button on the AZ control panel with loaded shots, the automatic loader cycle starts. At the same time, the rotating conveyor (VT) begins to rotate, simultaneously with the rotation of the VT, the gun is brought to the loading angle, when the gun approaches the loading angle, the M6 motor is turned on, turning on the motor is a signal to start the program for checking the cleanliness of the bore (distance sensor (1), which is lowered onto the loading line on a folding bracket (2) with a drive motor (3)), then the axes of the SP stopper and the stopper bushing coincide, the gun is stopped, and the SP-K3 switch is activated. It is from the SP-K3 switch that the signal is read, it is a command to check, at this moment the sensor readings (1) are read. In the absence of foreign objects in the bore, the loading cycle continues in the normal mode, in the presence of foreign objects, a signal is sent from the test device to a normally closed relay installed in the M4 electric motor circuit (which ensures the rammer circuit runs and the projectile is chambered). In case of detection of foreign objects, a signal should be sent to stop loading the gun and alert the crew.

When foreign objects are removed from the bore, the sensor (1) checks the required distance, after which the signal ceases to be received by the relay, which leads to the activation of the M4 electric motor and the normal operation of the automatic loader.

Claims (1)

A device for checking the cleanliness of the gun bore, consisting of a rotating conveyor, a cassette lifting mechanism, a pallet removal mechanism, a rammer, an electromechanical gun stopper, a memory device, a junction box, a control panel, a loading panel, an indicator of the number of shots, an electrical installation kit, characterized in that it is installed a laser distance sensor, which is mounted on a folding bracket with a drive motor and an electrical installation kit, which is mounted on the device body using a locking pin, which is installed in the lugs of the gun stopper, which is removed when preparing the tank for firing.

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