RU2648651C1 - Front panel of bridge layer - Google Patents

Abstract

FIELD: construction.

SUBSTANCE: invention relates to the front panel of a bridge-laying machine. Panel is fixed on the front end of the bridge block and contains a screen-grid anti-cumulative screen. Screen is made in the form of a rolled netted web, its external end being fixed to the carrier bar, which is mounted on the bridge block by means of the rear pins and single eyelets, located in its rear pair eyelets, equipped with an executive device that is remotely controlled by a command from the control room; the said device provides self-opening the mesh web and loading rod, fixed on its inner end, under the force of gravity.

EFFECT: increased frontal protection of the mechanisms and body of a bridge layer.

1 cl, 12 dwg

Description

The invention relates to the field of ferry and bridge means, and in particular to mechanical means of protecting the frontal and aft parts of the bridge stacker body from the effects of cumulative ammunition.

Known folding screen protection of tanks / 1 /. The folding screen protection of the tanks is placed on the front of the hull in the form of a frontal screen, as well as on other parts (sides of the hull, sides of the tower) of the tank. The frontal screen consists of two lattice frames, elastically mounted on the body using brackets, levers and hinges with rubber bushings, which ensures the deflection of the frames when passing the machine through obstacles. The transfer to the working position and vice versa is carried out directly from the machine using hydraulic or pneumatic devices.

The disadvantages of the folding screen protection are: insufficient distance between the working plane of the frontal screen and the nose of the machine body, the complexity of the design and the need to equip the machine with additional hydraulic (pneumatic) devices, the need for additional armor protection of the hydraulic (pneumatic) devices on the armor, providing disclosure ( folding) protection screens, significant total weight and cost.

Known protection screen tank ZET-1/2 / which is a disclosed mesh frontal screen, consisting of a grid, bearing spokes with elastic elements and structurally made as an umbrella mounted on the gun barrel. In the working position of the screen, the supporting spokes with a mesh are deployed by elastic elements (in the form of an open umbrella) by 75-85 °. To balance the screen, additional counterweights are installed on the gun.

The disadvantages of protecting the shield tank ZET-1 are: design complexity, significant weight and cost, the inability to use frontal armored vehicles without a gun to protect the front, an increase in the length of the lower unshootable area (dead zone), the inability to fire in the rear sector of the vehicle, additional loading of the mechanism guidance and stabilization of the gun.

The closest analogue (prototype) of the anti-cumulative shield of a tank, infantry fighting vehicle / 3 / is known, which is a two-part, single-layer or multi-layer mesh-lattice anti-cumulative composite screen made of frames and horizontal beams, wire or rods. The first part of the screen is mounted on the tank body by means of brackets and protects the machine body and its chassis. The second part of the screen is mounted by means of a horizontal beam on the barrel of the gun and protects the front of the tower. The balancing of the second part of the screen, placed on the gun, is provided by the installation of an additional counterweight.

The disadvantages of the anti-cumulative screen of a tank, infantry fighting vehicle are: design complexity, significant weight and cost, the inability to use the frontal part of armored vehicles without a gun, the difficulty of accelerating the movement of the gun when aiming with the second part of the screen mounted on it, and the increase in the length of the lower unshootable section dead zone), the impossibility of firing in the aft sector of the machine, the additional loading of the guidance and stabilization mechanism of the gun, the lack of automatic eskogo deployment and remote deployment of the screen.

The problem to which the invention is directed is to: increase the frontal protection of the mechanisms and the bridge stacker from damage by cumulative ammunition at the most critical moment - its approach to the barrier and the initial period of installation of the bridge.

The solution to this problem is achieved by securing at the end of the bridge block the frontal screen of the bridge layers in the form of a mesh web wound into a roll, fixed on a support bar and self-expanding under the influence of the gravity of the canvas and the loading bar on command from the bridge control department.

The invention is illustrated by the accompanying drawings, in which: FIG. 1 - bridge stacker with a front screen placed in its original position, side view; FIG. 2 - bridge with a front screen placed in its original position, front view; FIG. 3 - the initial position of the front screen of the bridge, side view; FIG. 4 - the initial position of the front screen of the bridge, a scaled side view; FIG. 5 - working position of the front screen of the bridge, side view; FIG. 6 - working position of the front screen of the bridge, front view; FIG. 7 - a spreader with a frontal screen, in the working position, at the time of the destruction of the cumulative jet, side view; FIG. 8 - stages of installation of the bridge with the front screen of the bridge in the working position, on the barrier, side view: a - approach of the bridge to the barrier; b - installation of outriggers and opening of end sections; c - extension of the bridge to the barrier; g - the bearing of the bridge on the opposite bank of the barrier; d - the bearing of the bridge on the original shore of the barrier.

The front screen of the spreader includes the mirrored left and right elements of the controlled mounting 2 located in the front and rear ends of the bridge unit 1 and a self-expanding screen 3, FIG. 1-4.

Each controlled fastening element 2 includes front pair eyes 4 and rear pair eyes 5 fixed on the bridge block 1, as well as belts 6, equipped with single eyes 7 at their front ends. Moreover, the front single eyes 7 enter the front pair eyes 4, where they are fixed front pins 8 (Fig. 3, 4.)

On each front edge of the pair of eyes 4 is placed remotely controlled (for example, controlled using wires of an electric circuit equipped with a push-button switch, retractor relays from the driver’s control compartment), the actuator 9. The actuator 9 is connected to the front pin 8 in such a way that upon receipt signal (on command), has the ability to retract (shift) it horizontally (Fig. 3, 4).

The self-expanding screen 3 consists of a single eyelet 10 and combined with the rear ends of the belts 6, the supporting rod 11, the working surface 12 and the loading rod 13. The upper face of the working surface 12 is combined with the supporting rod 11, and its lower part, with the loading bar 13. The self-expanding screen 3 is attached to the bridge unit 1 by fixing the rear pins 14 of single eyes 10 in the rear pair of eyes 5. At the same time, the self-expanding screen 3 is supported by belts 6, the single eyes of which 7 fixed in twin eyes 4 pins 8 (Fig. 3, 4).

The above-described device of the frontal screen of the bridge layer provides, if necessary, its mirror installation on both sides of the bridge unit 1.

The front screen of the spreader is put into working position (swivels) as follows. Remote-controlled actuating devices 9 receive a signal (for example, when a driver’s push-button switch is applied, an electric current flows through an electric circuit to a retractor relay), the front pins 8 are pulled out (horizontally displaced) from the front pair of eyes 4. The single eyes of 7 belts 6 are unlocked and self-expanding screen 3 (working surface 12 with a loading bar 13), due to the action of gravity, lowers and unfolds, entrapping the eyes of 7 belts 6. After completed I disclosure of spontaneous buckling and excessive deviations of the working surface 12 holds prigruzochnaya rod 13, FIG. 5, 6, 8a.

When a cumulative grenade gets into the working surface 12 of the deployed frontal screen of the bridge-laying grenade, its premature detonation occurs, which contributes to a significant decrease in its combat effectiveness, FIG. 7.

Further, the installation of the bridge unit 1 is carried out together with a self-expanding screen 3 (the working surface 12 with the loading bar 13) located in the working position, FIG. 8b, c, d, d.

The dismantling of the self-expanding screen 3 (both from the source and from the opposite bank) is carried out by the calculation of the bridge-laying machine in the reverse order.

If necessary, the front screen 3 can be placed at the rear end of the bridge unit 1.

Information sources

1. Domestic armored vehicles 1945-1965. / M.V. Pavlov, I.V. Pavlov // Equipment and armament, No. 1, 2, 2009, p. 47-48.

2. The grid against the projectile / Anatoly Bakhmetov // Tankmaster, No. 2, 2000

3. RF patent №2125224, cl. F41H, publ. 1999 - a prototype.

Claims (1)

The front screen of the bridge stacker, mounted on the front end of the bridge block, comprising a mesh-lattice anti-cumulative screen, characterized in that the screen is made in the form of a mesh web wound into a roll, its external end mounted on a support rod, which is mounted on the bridge block by means of rear pins and single eyes located in its rear pair of eyes, equipped with a remote control unit, actuated by a command from the control unit, providing self-development Wrapping under the influence of gravity of the mesh web and the loading bar fixed on its inner end.

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