RU2775031C1 - Method for self-propelled artillery gun firing - Google Patents

Abstract

FIELD: military technology.

SUBSTANCE: method for self-propelled artillery gun firing, equipped with a rollback and reciprocating brake with a sensor of its position mounted on a combat vehicle, including a suspension with elastic devices connected to the support rollers, in which the valve interrupts the hydraulic channels of communication of the elastic devices with the support rollers for the time of rollback of the rolling parts of the gun for the required time, which is calculated by the onboard equipment when closing the firing circuit. The connection of the elastic devices with the support rollers is interrupted partially by the value calculated by the program.

EFFECT: reduction in overload on the crew, equipment and main components of the combat vehicle when firing.

1 cl, 1 dwg

Description

The invention relates to military equipment, in particular to combat vehicles (SAO, tanks, infantry fighting vehicles) equipped with artillery weapons.

A 203-mm self-propelled artillery mount (SAU) 2S7 "Pion" is known, equipped with a massive coulter, information about which is available on the Internet, for example, on the website: http://safe-rgs.ru/3592-pion-sau-2s7-kalibra -203-mm.html. In order to ensure dynamic stability and transfer the resistance force to recoil into the ground, the Pion self-propelled guns 2S7 lower the above coulter to the ground before firing.

The disadvantage of this technical solution is the reduction in the mobility of the ACS, due to the time spent on lowering the opener before firing and raising it after firing, increasing the total weight of the ACS due to the use of a massive opener. Also, the disadvantages include the impossibility of firing on the move, a decrease in the rate of fire and the formation of an absolutely inelastic impact, which leads to the occurrence of overloads on the crew, equipment and main components of the self-propelled guns during firing.

A known method of firing a combat vehicle (patent RU 2729864, published 09/12/2020), adopted as the closest analogue.

The advantages of such a technical solution over the 2S7 "Peony" are the absence of time spent on lowering and raising the coulter, the possibility of firing on the move, and an increase in the rate of fire due to this.

The disadvantage of this technical solution is that when the recoil parts of the tool are interrupted for a while, the connection of the elastic devices with the road wheels forms a single rigid structure - the entire supporting surface of the machine, which, when fired, leads to an absolutely hard impact, which causes significant overloads (of the order of 10 g [ Samusenko M.F. Fundamentals of designing artillery weapons for tanks and self-propelled artillery installations, Moscow, 1958 - 682 pp.]) on the crew of the vehicle, its equipment and main components. Also, the disadvantage is the lack of adaptability of the suspension: in most combat options (combined arms, dueling) when firing a combat vehicle, to ensure its maximum rate of fire, the maximum value of the suspension stiffness is required.

The objective of the claimed invention is to reduce overloads during firing on the crew, equipment and main components of the combat vehicle during firing, while maintaining the maximum rate of fire.

This problem is solved due to the fact that when the firing circuit is closed, the module for calculating the on-board equipment of the combat vehicle calculates according to the computer program, certificate No. RU 2020664039, publication dated 11/06/2020, the suspension stiffness value necessary to ensure the maximum rate of fire, after which it transmits the command when fired at a partial, calculated by the computer program, certificate No. RU 2021663037, publication dated 09/11/2021, overlapping of the hydraulic part of the spring with a hydraulic shock-resistant electromagnetic valve, for example, KPSR-B series 210. Thus, overloads can be reduced to the level , permissible in terms of impact on the crew, equipment, structure (up to 3.5g, depending on the level and duration of overlapping of the hydraulic part of the spring, which corresponds to the permissible [Undercarriage of tanks. (Equipment and Armament No. 7 for 2005 / Armor website, July 2006 ): website [Electronic resource] URL: http://armor.kiev.ua/Tank/design/suspension/1/]).

The technical result of the invention is to reduce overloads when fired on the crew, equipment and main components of the combat vehicle when fired.

Due to the partial overlap of the hydraulic part of the spring, part of the damping properties of the hydropneumatic spring is preserved, which ensures the exclusion of a hard impact, which, in turn, reduces the overloads on the crew, equipment and main components of the combat vehicle that occur during the shot, while maintaining the maximum rate of fire.

Figure 1 presents a block diagram showing the procedure for combat vehicles when implementing this method of reducing overloads when fired, while maintaining the maximum rate of fire.

1. The firing circuit is closed. 2. The sensor for closing the firing circuit is triggered, at the same time, the module for calculating the onboard equipment of the combat vehicle calculates the required value of the suspension stiffness and generates the amount of valve overlap. 3. The signal from the sensor is sent to a device that interrupts the hydraulic connection between the movements of the pistons associated with the track rollers and the movements of the pistons acting on the suspension elastic devices. 4. A shot is fired. 5. The movement of the recoil parts into the rollback begins, the recoil parts occupy the extreme position in the rollback. 6. The second sensor is activated, which monitors the moment when the sliding parts reach the extreme position in the rollback. 7. The signal from the second sensor is fed to the device that restores the hydraulic connection between the said pistons. 8. The system returns to its initial state until the next closing of the firing circuit.

In general, the tool and controlled hydropneumatic suspension of the undercarriage of the machine operates as follows.

When the firing circuit is closed, the onboard equipment calculation module generates for the current combat conditions (dueling, combined arms) the optimal value of the suspension stiffness in order to maintain the maximum rate of fire, while avoiding a hard impact. When a shot is fired, the hydraulic connection between the movements of the pistons associated with the road wheels and the movements of the pistons acting on the elastic suspension devices (compressed gas in a closed cavity of a controlled hydropneumatic suspension) is partially interrupted, as a result of which the hull and gun of the combat vehicle retain its position in space, which excludes the limiting effect of fluctuations on the speed of preparation and execution of the subsequent shot, while the negative impact of overloads on the crew, equipment and main components of the combat vehicle is partially leveled, and after the recoil stops, the hydraulic connection between the specified pistons is restored.

The technical result of the proposed method is to reduce the overload on the crew, equipment and main components of the combat vehicle when fired while maintaining the maximum rate of fire.

Claims (1)

A method of firing a self-propelled artillery gun equipped with a recoil and rolling brake of recoil parts with a sensor for their position, installed on a combat vehicle, including on-board equipment, a hydropneumatic suspension with elastic devices associated with the road wheels, and controlled valves that, when fired, interrupt the connection of the elastic devices with the support rollers during the rollback of the recoil parts of the gun for the required period of time, characterized in that the on-board equipment includes a calculation module, which, before closing the firing circuit, calculates, using computer programs, the optimal value of the suspension stiffness, the magnitude and duration of the overlap of the hydraulic channels in the elastic devices, and therefore the interruption of the connection of the elastic devices with the road wheels can occur in a dosed manner.

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