RU2175430C2 - Armored vehicle with reinforced anti-mine protection - Google Patents

Abstract

FIELD: armored and special engineering equipment designed to cross mine-planted terrain and routes for materiel and personnel. SUBSTANCE: armored vehicle has hull with bottom, lateral ribs welded to inner side of bottom, longitudinal and lateral ribs welded to outer side of bottom, external false bottom with grooves put on longitudinal and lateral ribs. Outer longitudinal and lateral ribs are interjoined in "comb" and are joined to external false bottom by means of protrusions arranged on faces of ribs and entering grooves of external false bottom. Bottom of hull and external false bottom are linked by braces of T-section passing through holes in external false bottom and bottom of hull. Vertical walls of braces have wedge-shaped grooves into which clamping wedges are put from inner side of bottom of hull. Internal false bottom is anchored on inner lateral ribs and filling agent combining properties of anti-radiative and anti-cumulative material is placed in air clearance between internal false bottom and bottom of hull. EFFECT: increased protection of crew against high-explosive and hollow-charge mines. 5 dwg

Description

 The invention relates to armored and special engineering equipment and can be used on tanks, minesweepers, armored mine clearing vehicles, engineering clearing vehicles and other armored vehicles designed to overcome mined terrain and mined vehicles and vehicles.

 The invention is known according to the patent of the Russian Federation N 2111441 "Transport vehicle for use in the emergency zone" (1), selected as a prototype. The transport machine comprises a housing with a bottom, a frame structure welded from the outside to the bottom in the form of longitudinal and transverse beams forming cells closed by sheets-screens. A composite gasket consisting of layers of energy-absorbing elements is embedded in the cavities of the cells.

 A mine clearance vehicle (BMR) is also known (2), the bottom design of which uses the main features of the invention according to RF patent N 2111441. In this case, instead of sheet screens, the cells on the BMR are closed with a false bottom, in which there are local through grooves located against longitudinal and transverse beams and through which the beams with a false are connected by welding. In addition, the bottom is reinforced with transverse ribs welded to it from the inside. Above the transverse ribs with a gap from them, a polyk is installed with aggregates of internal equipment located on it.

 The disadvantage of these designs of the bottom is that the connection of the longitudinal and transverse beams with each other and with sheets, screens or false bottom is made by welding and thus the mesh bottom is not equal in strength. In addition, the known bottom with composite energy-absorbing inserts located in the cells under the bottom of the body does not have the required stiffness and resistance to high-explosive and cumulative mines.

 As the tests (3) showed, in the case of a high-explosive mine explosion, a shock wave due to uneven construction of the bottom first destroys the welds, as the weakest element, and then deforms the outer false bottom and the bottom of the body in series. At the same time, due to the insufficient rigidity of the bottom, the dynamic deflection of the hull bottom exceeds the distance to the polik, which leads to the collision of the bottom of the hull with the polik and disruption of the crew and internal equipment located on the polik. During the explosion of a cumulative mine, the resulting cumulative stream passes through the external false bottom, the bottom of the hull, the air gap between the bottom of the hull and the policom, the policom and incapacitates the crew and internal equipment. The composite insert intended in the known invention for absorbing impact energy does not contribute to the rupture and erosion of the cumulative jet and thus does not significantly reduce the armor-piercing effect of the jet.

 The aim of the present invention is the creation of an armored vehicle with an equal strength multilayer bottom, ensuring the efficiency of the crew and internal equipment when undermining high-explosive and cumulative mines.

 This goal is achieved by the fact that the outer longitudinal and transverse ribs are connected to each other in the "comb", and with the outer false bottom - by means of protrusions at the ends of the ribs included in the grooves of the outer false bottom. In addition, the bottom of the casing and the external false bottom are interconnected by couplers of T-section passing through the holes of the external false bottom and the bottom of the case, while wedge-shaped grooves are made in the vertical walls of the screeds into which the wedges are installed on the inside of the bottom of the case and welded to the ribs welded to the ribs to the inner side of the bottom of the case, the armor plates of the internal false bottom are fixed. A filler is placed in the air gap between the inner false bottom and the bottom of the body, combining the properties of anti-radiation and anti-cumulative material. To increase the rigidity of the bottom above the torsion bar suspensions welded box-shaped transverse fencing. To exclude the collision of the internal false bottom with the polik with the equipment placed on it, the polik is installed at a distance exceeding the dynamic bottom.

Distinctive features are:
- the interconnection of the outer longitudinal and transverse ribs in the "comb";
- the connection of the outer longitudinal and transverse ribs with the outer false through the protrusions at the ends of the ribs included in the grooves of the false bottom;
- connection of the bottom of the body with the external false bottom using T-sections;
- the presence of tightening wedges, unloading welds;
- the presence of an internal false bottom made of armor plates and fixed to the transverse ribs;
- placement of a filler with anti-radiation and anti-cumulative properties in the gap between the internal false bottom and the bottom of the body.

 In the study of other technical solutions in the art, signs that distinguish the claimed device were not detected. This allows us to conclude that the claimed device has a novelty and should not be explicitly from the existing level of technology.

 The invention can be applied in the manufacture of armored vehicles and special engineering equipment designed to overcome the mined terrain and the mined tracks of vehicles and people.

 The proposed device is presented in the drawings, where in FIG. 1 shows a longitudinal section through an armored vehicle; in FIG. 2 shows its cross section (section. AA, FIG. 1); in FIG. 3 shows the connection of a screed of the T-section of the external raised bottom and the bottom of the body (remote element B, Fig. 2); in FIG. 4 shows the connection of the outer and longitudinal ribs with the outer false bottom (remote element B, Fig. 2); in FIG. 5 shows the connection of the longitudinal and transverse ribs to each other in a "comb" (section. G-D, Fig. 2).

 The armored vehicle comprises a housing 1, a bottom 2 of a housing 1, an external false bottom 3, an internal false bottom 4, inner transverse ribs 5, outer longitudinal ribs 6, outer transverse ribs 7, filler 8, tie rods 9 of T-section, protrusions 10 ribs 6.7, tightening wedges 11, polik 12, box-section fencing 13, torsion bars 14 of the chassis suspension, ribs 15, openings "a", "c" in the outer false bottom 3, openings "b" in the bottom 3, grooves "g" in the ties 9, grooves "d" in the ribs 6, 7.

 The armored vehicle operates as follows. When a cumulative mine is detonated under its bottom, the cumulative stream passing through the external false bottom 3, bottom 2, filler 8, internal false bottom 4, air gaps, loses its energy. Particles of filler 8 (located in the back layers of a multilayer barrier and made of anti-radiation material or polyurethane foam) are especially active on the jet, detached from the walls of the cavity and violating the continuity of the jet.

 When an explosive mine explodes, the energy of the shock wave is absorbed by the bottom due to its deformation. In this case, the wedge and lock joints of the ribs 6, 7 both with each other and with the external false bottom 3, the connection of the bottom 2 with the false 3 using ties 9, the wedges 11 unload the welds and the three-layer bottom works as a whole section of approximately equal resistance. The internal false bottom 4, mounted on the ribs 5, fences 13 box section, welded to the bottom 2, create additional structural rigidity of the entire bottom, which helps to reduce dynamic deflections from shock loads. The use of joints of the ribs 6,7 in each other in the "comb", installed in the grooves "d", and with a false bottom 3 by means of the protrusions 10 included in the grooves "in" the false bottom 3, the connections of the bottom 2 with the false bottom 3 using ties 9 of the T-section, installed in the holes "a", "b", tightening wedges 11, installed in the grooves "g", the internal false bottom 4, mounted on the ribs 5, provides a deformation of the bottom not exceeding the gaps between the internal false bottom 4 and the shelf 12, and thus increases security of the crew and equipment located on it from Darney impact of high-explosive mines.

Sources of information
1. RF patent 2111441 from 05.20.1998, F 41 H 5/00, 7/00.

 2. 05. S.070.00.000TO-01 - Technical description and instruction manual.

 3. Report of military unit 68054 for testing the BMR-3 product.

Claims (1)

 An armored vehicle with increased mine protection, comprising a body with a bottom, transverse ribs welded on the inside of the bottom, outer longitudinal and transverse ribs welded on the outer side of the bottom, an external false bottom with grooves mounted on the outer longitudinal and transverse ribs, and a filler different the fact that it is equipped with an internal false bottom made of armor plates and tie-rods of the T-section, wherein the outer longitudinal and transverse ribs are connected to each other in a “comb” and to the outer fa the bottom by means of protrusions made at the ends of the said ribs installed in the grooves of the external false bottom, in addition, the last and the bottom of the housing are interconnected by the said ties placed in the holes made in the external false bottom and the bottom of the housing, while in the vertical walls of the said ties are made wedge-shaped grooves, in which additionally introduced tightening wedges are installed on the inside of the bottom of the body, and the internal false bottom is fixed to the transverse ribs welded from the inside renney bottom side of the housing, wherein the filler is disposed in the air gap between the housing and the inner bottom falshdnischem.

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