RU220451U1 - PROTECTIVE SCREEN OF THE UPPER HEMISPHERE OF TRACKED VEHICLES - Google Patents

Abstract

The utility model relates to a protective screen, in particular to a means of reducing the likelihood of damage to the upper hemisphere of tracked vehicles when exposed to precision weapons and conventional weapons using unmanned aerial vehicles when impacted from various heights. The utility model relates to the field of protection of tracked vehicles from anti-tank weapons of cumulative action, which affect the upper hemisphere of the vehicles, hitting the least protected area in a dive mode at an angle of 90 degrees, (anti-tank missile system (ATGM) "Javelin", hand grenades, UAVs kamikazes with anti-tank warheads such as “Switchblade 600”, “Warmate”, “CH-901”, etc., attacking from the upper hemisphere into a weakly protected area). The purpose of the utility model is to reduce the damaging effects on tracked vehicles and their crews. The technical objective of the utility model is to develop a protective screen for the upper hemisphere of tracked vehicles in order to increase the efficiency of protecting tracked vehicles from attacking ATGM ammunition and unmanned aerial vehicles that affect the upper hemisphere of tracked vehicles. This technical problem is solved due to the fact that the protective screen of the upper hemisphere of tracked vehicles is made in the form of a metal grid made of low-alloy steel with a grid pitch of 20 mm; brackets are welded to the metal grid, onto which dynamic protection containers with dynamic protection elements are bolted. The dynamic protection element consists of a layer of explosive located between two thin metal plates. A metal grill with an explosive reactive armor container is installed on top of the upper hemisphere on metal supports at a height that does not prevent the opening of the hatches of the tracked vehicle. Metal supports are bolted to standard bonks located on the machine body. The technical result is achieved by the fact that when an attacking ammunition impacts the protective screen of the upper hemisphere of tracked vehicles, as a result of the deformation reaction of the explosive, it is detonated to meet the attacking ammunition. Once in the first layer of explosive, detonation occurs with the dispersion of the cumulative jet. Next, the second layer of explosive detonates, throwing the armored plate towards the cumulative jet, absorbing energy. When a section of the protective screen of the upper hemisphere of tracked vehicles is repeatedly exposed, where the explosive reactive armor container has already been detonated, the attacking ammunition falls into the metal grate, the funnel of the attacking ammunition is deformed, which forms a cumulative jet, after which the attacking ammunition loses its purpose. The standard dynamic protection system of a tracked vehicle is not affected, the vehicle and crew are not affected.

Description

The utility model relates to a protective screen, in particular to a means of reducing the likelihood of damage to the upper hemisphere of tracked vehicles when exposed to precision weapons and conventional weapons using unmanned aerial vehicles when impacted from various heights.

A passive protection system for combat modules of tracked vehicles, consisting of main armor protection and dynamic protection, is designed to reduce the impact of attack ammunition on tracked vehicles. The armor protection of a tracked vehicle is capable of protecting the crew from the effects of armor-piercing and high-explosive fragmentation shells, which usually inflict damage from the side projections of tracked vehicles. Currently, a particular danger for tracked vehicles is represented by anti-tank weapons of cumulative action, which affect the upper hemisphere of the vehicle, hitting the least protected area in a dive mode at an angle of 90 degrees (anti-tank missile system (ATR) "Javelin", hand grenades, UAVs kamikazes with anti-tank warheads such as “Switchblade 600”, “Warmate”, “CH - 901”, etc., attacking from the upper hemisphere into the weakly protected area of the tracked vehicle). Dynamic protection is capable of providing a protective effect only against a single impact; after damage, the spent elements require replacement. During combat operations, this is impossible to do; up to 40 percent of the area of the upper hemisphere of a tracked vehicle remains unprotected from cumulative ammunition, not to mention the fact that container fastenings are also deformed, come off and require repairs by repair and restoration agencies. In modern conditions, unmanned aerial vehicles with portable ammunition make several launches (drops), at the first stage disabling elements of dynamic protection, and then hitting open areas of the upper hemisphere of a tracked vehicle.

There are known methods of protection against cumulative ammunition through the operation of an active protection complex, the operating system of which includes the detection of incoming ammunition by an electronic system and a response to detection by firing submunitions in the direction of the attacking ammunition.

The disadvantages of the active protection complex are:

limited quantity of imported submunitions;

inability to detect attacking ammunition if detection sensors fail;

inability to detect unmanned aerial vehicles;

If there is no power supply, the active protection complex is not active.

There are currently no other methods of mechanical protection of the upper hemisphere of tracked vehicles.

Elimination of this drawback can be achieved by placing an additional screen above the upper hemisphere with elements of dynamic protection and a grille.

The technical task of the utility model is to develop and place a protective screen for the upper hemisphere of tracked vehicles, in order to increase the effectiveness of protection against damage to the upper hemisphere of tracked vehicles by ammunition thrown from unmanned aerial vehicles, as well as by anti-tank cumulative ammunition operating at an angle of 90 degrees to the plane of tracked vehicles.

This technical problem was solved due to the fact that the protective screen of the upper hemisphere of tracked vehicles is made in the form of a metal grid made of low-alloy steel 09G2S with a grid pitch of 20 mm (half the diameter of the warhead of the main Javelin-type ATGMs), brackets are welded to the metal grid, on which dynamic protection containers with dynamic protection elements are bolted. The dynamic protection element consists of a layer of explosive located between two thin metal plates (Fig. 1). A metal grill with dynamic protection containers is installed on top of the upper hemisphere on metal supports at a height that does not prevent the opening of the hatches of tracked vehicles. Metal supports are bolted to standard bonks located on the machine body.

The technical result is achieved by the fact that when attacking ammunition impacts the protective screen of the upper hemisphere of tracked vehicles as a result of the deformation reaction of the explosive, it is detonated to meet the attacking ammunition. Once in the first layer of explosive, detonation occurs with the dispersion of the cumulative jet. Next, the second layer of explosive detonates, throwing the armored plate towards the cumulative jet, absorbing energy. When a section of the protective screen of the upper hemisphere of tracked vehicles is repeatedly exposed, where the explosive reactive armor container has already been detonated, the attacking ammunition falls into the metal grate, the funnel of the attacking ammunition is deformed, which forms a cumulative jet, after which the attacking ammunition loses its purpose. The standard dynamic protection system of tracked vehicles is not affected, the vehicles and crews are not affected.

The proposal is illustrated with figures.

In fig. 1 shows the design of the dynamic protection element and a diagram of the operating principle of the dynamic protection unit, where 1 - the cumulative jet passes into the block; 2 - the first layer of explosive detonates, dispersing the cumulative jet; 3 - the second layer of explosive detonates, throwing the armor plate towards the cumulative jet with energy absorption.

In fig. Figure 2 shows a diagram for calculating the number of required dynamic protection containers for the protective screen of the upper hemisphere of tracked vehicles for the BMP-3.

In fig. Figure 3 shows the calculation of the required number of dynamic protection containers, taking into account the width distance between the booms.

In fig. Figure 4 shows an option for installing a protective screen for the upper hemisphere of tracked vehicles on the BMP-3.

Claims (1)

Protective screen of the upper hemisphere of tracked vehicles, made in the form of a metal grid made of low-alloy steel 09G2S with a grid pitch of 20 mm with welded brackets to which dynamic protection containers with explosive elements are bolted.