An integral mine protection component and a heavy off-road vehicle

Abstract

The present invention relates to an integral mine protection component and a heavy off-road vehicle, including a welded assembly of a mine protection bottom plate, a front mounting bracket, a rear mounting bracket, and an energy-absorbing pin mounting bracket; wherein, the welded assembly of the mine protection bottom plate includes a bottom plate, a front vertical plate, a rear vertical plate, a front mounting cross beam, an intermediate vertical plate, and an outer frame; the integral mine protection component of the present invention is arranged at the bottom of the longitudinal beam of the vehicle frame under the cab and is not directly connected to the cab, which can effectively block the transmission path of the shock wave and better protect the cab and the occupants from damage; the middle bottom is obtuse in both the length and width directions, which can deflect the transmission direction of the shock wave and reduce the damage of the shock wave to the cab; it is connected to the vehicle frame through the front bracket and the rear bracket and can be quickly replaced, and the cab can continue to be used completely, achieving the effects of improving the maintainability of the vehicle and reducing costs.

Description

Technical Field

[0001] The present invention relates to the technical field of heavy vehicles, and in particular to an integrated mine protection component and a heavy off-road vehicle. Background Art

[0002] In recent years, vehicle safety has received increasing attention, particularly the safety of heavy-duty off-road vehicles (HEVs) after being struck by landmines. Because HEVs lack inherent mine protection, a common practice both domestically and internationally is to install mine-resistant armor plating directly on the cab floor, incorporating a V-shaped floor structure that deflects shock waves. However, this design has the disadvantage that, in the event of a mine explosion, the cab floor is directly impacted by the shockwave and fragments, inevitably damaging the cab structure and causing significant collateral damage to the occupants, resulting in significant loss of life and property. Furthermore, cab damage is difficult to repair and expensive to replace. Summary of the Invention

[0003] The purpose of the present invention is to address the deficiencies of the prior art and thereby provide an integrated mine protection assembly and a heavy-duty off-road vehicle, which solve the problems that when a mine explosion strikes, the bottom of the cab is directly impacted by the mine shock wave and fragments, which inevitably damages the cab structure and causes greater collateral damage to the occupants, resulting in significant loss of life and property. In addition, after the cab is damaged, it is difficult to repair and the replacement cost is high.

[0004] The present invention is achieved by adopting the following technical solutions:

[0005] An integrated mine protection assembly and heavy off-road vehicle, including a mine protection bottom plate welding assembly;

[0006] The mine protection base plate welding assembly includes:

[0007] The bottom plate includes a front portion, rear portions disposed on both sides of the rear end of the front portion, and an intermediate extension portion disposed at the rear end of the front portion and located between the two rear portions; the bottom of the front portion of the bottom plate is obtusely angled along both the length and width directions, and the left and right sides of the rear portion of the bottom plate are in an inverted U-structure;

[0008] A front vertical plate, fixedly arranged at the front opening of the bottom plate;

[0009] A rear vertical plate, fixedly arranged at the inner opening of the rear portion of the bottom plate;

[0010] A front mounting crossbeam is fixedly mounted on the bottom end of the front portion of the base plate;

[0011] The middle vertical plate is fixed on the upper surface of the middle extension portion of the bottom plate.

[0012] Further description of the present invention, the mine protection bottom plate welding assembly further includes an outer skeleton; the outer skeleton is integrally U-shaped, its front part is welded to the upper end of the front inclined plate of the bottom plate, its front parts on the left and right sides are welded to the upper ends of the front vertical plates, and its rear parts on the left and right are welded to the outer ends of the rear part of the bottom plate.

[0013] Further description of the present invention, the rear vertical plate includes a rear plate fixedly arranged at the opening on the inner side of the rear part of the bottom plate, and a vertical plate fixedly arranged between the rear plate and the middle extension part of the bottom plate along the opening on the inner side of the rear part of the bottom plate.

[0014] Further description of the present invention, the front mounting cross beam is of an inverted U-shaped structure, its bottom is fixedly arranged on the upper surface of the front part of the bottom plate, its front and rear sides are fixedly arranged on the front and rear sides of the front part of the bottom plate, and its left and right sides are fixedly arranged on the inner sides of the two front vertical plates; a plurality of screw holes are arranged on the upper surface of the front mounting cross beam.

[0015] Further description of the present invention, both sides of the middle extension part of the bottom plate are stepped, and energy absorption pin mounting plates and third reinforcing ribs are arranged on both sides; the middle vertical plate is arranged between the two energy absorption pin mounting plates.

[0016] Further description of the present invention, it further includes a front mounting bracket; the front mounting bracket includes a first bent plate and a plurality of first reinforcing ribs fixedly arranged on the first bent plate; the horizontal plane of the first bent plate is screwed to the screw holes on the upper surface of the front mounting cross beam.

[0017] Further description of the present invention, it further includes a rear mounting bracket; the rear mounting bracket includes a second bent plate and a plurality of second reinforcing ribs fixedly arranged on the second bent plate; one end of the rear mounting bracket is connected to the rear plate of the rear vertical plate.

[0018] Further description of the present invention, it further includes an energy absorption pin mounting bracket; the energy absorption pin mounting bracket includes at least two third bent plates, and the lower part of the energy absorption pin mounting bracket is connected to the energy absorption pin mounting plate through an energy absorption pin.

[0019] A heavy cross-country vehicle includes the integral mine protection component described above; the heavy cross-country vehicle further includes a cab and frame longitudinal beams; the mine protection bottom plate welding assembly is arranged at the bottom of the frame longitudinal beams under the cab, the vertical plane of the front mounting bracket is connected to the frame, the other end of the rear mounting bracket is connected to the frame, and the upper part of the energy absorption pin mounting bracket is connected to the frame.

[0020] Compared with the prior art, the present invention has the following beneficial technical effects:

[0021] 1. The integral mine protection component is arranged at the bottom of the frame longitudinal beams under the cab, covering the bottom of the cab completely, and can effectively prevent the shock wave from directly acting on the cab body.

[0022] 2. The integral mine protection component is arranged at the bottom of the longitudinal beam of the vehicle frame under the cab and is not directly connected to the cab, which can effectively block the transmission path of the shock wave and better protect the cab and the crew from damage.

[0023] 3. For the integral mine protection component, the bottom in the middle is obtuse in both the length and width directions, which can deflect the transmission direction of the shock wave and reduce the damage of the shock wave to the cab.

[0024] 4. For the integral mine protection component, the central extension section at the bottom has a relatively small stiffness. When the vehicle is attacked by a mine, a large deformation occurs here, causing the energy-absorbing pin shaft to break, maximizing the absorption of the explosion energy and reducing the damage of the explosion to the cab and the crew.

[0025] 5. The integral mine protection component is connected to the vehicle frame through the front mounting bracket and the rear mounting bracket. The installation and disassembly are simple. After the vehicle is attacked by a mine, the integral mine protection component can be quickly replaced, and the cab can still be used completely, achieving the effect of improving the maintainability of the vehicle and reducing the cost. Description of the Drawings

[0026] The present invention will be further described below with reference to the drawings:

[0027] Figure 1 It is a schematic structural diagram of the welded assembly of the mine protection bottom plate provided by the embodiment of the present invention;

[0028] Figure 2 It is a front view of the welded assembly of the mine protection bottom plate provided by the embodiment of the present invention;

[0029] Figure 3 It is a side view of the welded assembly of the mine protection bottom plate provided by the embodiment of the present invention;

[0030] Figure 4 It is a top view of the welded assembly of the mine protection bottom plate provided by the embodiment of the present invention;

[0031] Figure 5 It is a schematic structural diagram of the front mounting bracket provided by the embodiment of the present invention;

[0032] Figure 6 It is a schematic structural diagram of the rear mounting bracket provided by the embodiment of the present invention;

[0033] Figure 7 It is a schematic structural diagram of the energy-absorbing pin shaft mounting bracket provided by the embodiment of the present invention;

[0034] Figure 8 It is a schematic structural diagram of the integral mine protection component installed on a heavy off-road vehicle provided by the embodiment of the present invention.

[0035] Description of the Reference Numerals:

[0036] 1. Mine protection base plate welding assembly; 2. Energy absorbing pin; 3. Energy absorbing pin mounting bracket; 4. Front mounting bracket; 5. Rear mounting bracket; 6. First bent plate; 7. First stiffener; 8. Second bent plate; 9. Second stiffener; 10. Exoskeleton; 11. Front vertical plate; 12. Front mounting crossbeam; 13. Base plate; 14. Rear vertical plate; 15. Third stiffener; 16. Energy absorbing pin mounting plate; 17. Intermediate vertical plate; 18. Inner bent plate; 19. Outer bent plate; 141. Rear plate; 142. Vertical plate. DETAILED DESCRIPTION

[0037] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other. In the description of the present invention, it should also be noted that, unless otherwise clearly specified and limited, the terms "setting", "installation" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] Reference below Figure 1-8 The present invention provides an integrated mine protection assembly. The integrated mine protection assembly is a monolithic structure that can completely cover the bottom of the cab. The assembly includes a mine protection floor welding assembly 1, a front mounting bracket 4, a rear mounting bracket 5, and an energy-absorbing pin mounting bracket 3. The mine protection floor welding assembly 1 includes a floor 13, a front vertical plate 11, a rear vertical plate 14, a front mounting crossbeam 12, an intermediate vertical plate 17, and an exoskeleton 10.

[0039] exist Figure 1-4 In the illustrated embodiment, the bottom plate 13 includes a front portion, rear portions disposed on either side of the rear end of the front portion, and an intermediate extension disposed between the front and rear ends and located between the two rear portions. The bottom of the front portion of the bottom plate 13 forms an obtuse angle along both the length and width directions, and the left and right sides of the rear portion of the bottom plate 13 form an inverted U-structure.

[0040] It should be noted that, as shown above, the bottom plate 13 is an integrally stamped, partially welded structure with a rearward extension at the center bottom. The front portion of the bottom plate 13 is obtuse in both length and width directions. When a mine explodes, it can deflect the direction of the shock wave, protecting the cab and occupants. The rear left and right sides are inverted U-shaped structures, which overall play a role in deflecting the explosion shock wave.

[0041] exist Figure 1In the illustrated embodiment, the front vertical plate 11 is fixedly provided at the front opening of the bottom plate 13; further, the two front vertical plates 11 are respectively welded integrally with the openings on the left and right sides of the front part of the bottom plate 13;

[0042] In Figure 1 and Figure 3 In the illustrated embodiment, the rear vertical plate 14 is fixedly provided at the inner opening of the rear part of the bottom plate 13; further, the rear vertical plate 14 includes a rear plate 141 fixedly provided at the inner opening of the rear part of the bottom plate 13, and a vertical plate 142 fixedly provided between the rear plate 141 and the middle extension of the bottom plate 13 along the inner opening of the rear part of the bottom plate 13; still further, the rear plates 141 of the two rear vertical plates 14 are respectively welded to the long hypotenuses in an inverted U shape on both sides of the rear part of the bottom plate 13, the bottom ends of the vertical plates 142 are welded to the two side surfaces of the middle bottom extension section of the bottom plate 13, and the upper parts of the top ends of the vertical plates 142 are welded to the lower edges of the upper hypotenuses in an inverted U shape of the bottom plate 13;

[0043] In Figure 1 and Figure 4 In the illustrated embodiment, the front mounting cross beam 12 is fixedly provided at the bottom end of the front part of the bottom plate 13; further, the front mounting cross beam 12 has an inverted U-shaped structure, its bottom is fixedly provided on the upper surface of the front part of the bottom plate 13, its front and rear sides are fixedly provided on the front and rear sides of the front part of the bottom plate 13, and its left and right sides are fixedly provided inside the two front vertical plates 11; a plurality of screw holes are provided on the upper surface of the front mounting cross beam 12; still further, the cross section of the front mounting cross beam 12 is U-shaped, with the opening facing downwards, the ends of the two vertical sides are welded to the upper surface of the front part of the bottom plate 13, the left and right sides are welded to the two sides of the bottom plate 13, the left and right ends are welded to the front vertical plates 11, and a plurality of screw holes are opened on both sides of its upper surface, and connecting nuts are welded;

[0044] In Figure 1 and Figure 4 In the illustrated embodiment, the middle vertical plate 17 is fixedly provided on the upper surface of the middle extension of the bottom plate 13; further, both sides of the middle extension of the bottom plate 13 are stepped, and energy-absorbing pin mounting plates 16 and third reinforcing ribs 15 are provided on both sides thereof; the middle vertical plate 17 is arranged between the two energy-absorbing pin mounting plates 16; still further, the bottom of the middle vertical plate 17 is welded to the middle bottom extension section of the bottom plate 13, and both ends are welded to the energy-absorbing pin mounting plates 16; when a landmine explodes, it can undergo large deformation, causing the energy-absorbing pins to break, and can absorb energy to the maximum extent to protect the cab and the occupants;

[0045] In Figure 1 and Figure 4 In the illustrated embodiment, the outer frame 10 is integrally U-shaped, its front part is welded to the upper end of the front inclined plate of the bottom plate 13, its front parts on the left and right sides are welded to the upper ends of the front vertical plates 11, and its rear parts on the left and right are welded to the outer ends of the rear part of the bottom plate 13;

[0046] It should be noted that the outer frame 10 is generally U-shaped as a whole, and the cross-section of the frame is a circular hollow structure. Its front part is welded to the upper end of the inclined plate at the front of the bottom plate 13, the front parts on the left and right sides are welded to the upper ends of the front vertical plates 11, the rear parts on the left and right sides are welded to the outer ends of the inverted U-shaped parts on both sides of the bottom plate 13, and the rear parts on the left and right sides are welded to the rear ends of the inverted U-shaped parts on both sides of the rear part of the bottom plate 13, which plays a role in improving the stiffness of the overall integrated mine protection component;

[0047] In Figure 5 and Figure 8 In the embodiments shown, the front mounting bracket 4 includes a first bent plate 6 and a plurality of first reinforcing ribs 7 fixedly arranged on the first bent plate 6; the horizontal plane of the first bent plate 6 is screwed to the screw holes on the upper surface of the front mounting cross beam 12; further, the first bent plate 6 is an L-shaped structure, which includes a vertical plane and a horizontal plane, the first reinforcing ribs 7 are triangular reinforcing ribs, the first bent plate 6 is welded to the two first reinforcing ribs 7, and the horizontal plane of the front mounting bracket 4 is bolted to the front mounting cross beam 12 of the mine protection bottom plate welding assembly 1, and the vertical plane of the front mounting bracket 4 is bolted to the vehicle frame;

[0048] In Figure 6 and Figure 8 In the embodiments shown, the rear mounting bracket 5 includes a second bent plate 8 and a plurality of second reinforcing ribs 9 fixedly arranged on the second bent plate 8; one end of the rear mounting bracket 5 is connected to the rear plate 141 of the rear vertical plate 14; further, the second bent plate 8 is a V-shaped structure, including a first inclined plane and a second inclined plane, the second reinforcing ribs 9 are triangular reinforcing ribs, the second bent plate 8 and the second reinforcing ribs 9 are welded into one body, and the rear mounting bracket 5 is bolted to the vehicle frame and the rear plate 141 of the rear vertical plate 14 respectively;

[0049] In Figure 7 and Figure 8 In the embodiments shown, the energy-absorbing pin mounting bracket 3 includes at least two third bent plates, and the lower part of the energy-absorbing pin mounting bracket 3 is connected to the energy-absorbing pin mounting plate 16 through the energy-absorbing pin 2; further, the two third bent plates are both three-segment bent plates, which include an inner bent plate 18 and an outer bent plate 19, the upper part is bolted to the vehicle frame, and the lower part is connected to the energy-absorbing pin mounting plate 16 through the energy-absorbing pin 2;

[0050] A heavy off-road vehicle according to an embodiment of the present invention includes the above-mentioned integral mine protection assembly, and further includes a cab and frame side members; the welded assembly 1 of the mine protection bottom plate is arranged at the bottom of the frame side members under the cab, the vertical surface of the front mounting bracket 4 is connected to the frame by bolts, the other end of the rear mounting bracket 5 is connected to the frame by bolts, and the upper part of the energy-absorbing pin mounting bracket is connected to the frame by bolts; during its installation process, the vertical surface of the front mounting bracket 4 is respectively installed on the frame side members by bolts, and the vertical surface of the rear mounting bracket 5 is respectively installed on the frame side members by bolts; the welded assembly 1 of the mine protection bottom plate is respectively connected to the horizontal surface of the front mounting bracket 4 and the inclined surface of the rear mounting bracket 5 by bolts; the energy-absorbing pin mounting bracket 3 is respectively installed on the frame by bolts, and then the energy-absorbing pin mounting plate 16 in the welded assembly 1 of the mine protection bottom plate is connected to the energy-absorbing pin mounting bracket 3 by the energy-absorbing pin 2; the integral mine protection assembly is installed at the bottom of the frame under the cab and is not directly connected to the cab to block the transmission path of the shock wave, and finally forms an integral mine protection structure that can cover the bottom of the cab and is not directly connected to the cab, meeting the requirements of normal driving.

[0051] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, in any regard, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the same elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0052] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments or equivalently replace some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A heavy off-road vehicle, characterized in that, It includes an integral mine protection component, a cab, and frame side members; The integral mine protection component includes a welded assembly of a mine protection bottom plate (1); it also includes a front mounting bracket (4), a rear mounting bracket (5), and an energy-absorbing pin mounting bracket (3); The welded assembly of the mine protection bottom plate (1) is disposed at the bottom of the frame side members under the cab. The vertical surface of the front mounting bracket (4) is connected to the frame side members. The other end of the rear mounting bracket (5) is connected to the frame side members. The upper part of the energy-absorbing pin mounting bracket (3) is connected to the frame side members; The welded assembly of the mine protection bottom plate (1) includes: A bottom plate (13), including a front part, rear parts provided on both sides at the rear end of the front part, and an intermediate extension provided at the rear end of the front part and between the two rear parts; the bottom of the front part of the bottom plate (13) is obtuse in both the length and width directions, and the left and right sides of the rear part of the bottom plate (13) are in an inverted U structure; A front vertical plate (11), fixedly provided at the opening of the front part of the bottom plate (13); A rear vertical plate (14), fixedly provided at the inner opening of the rear part of the bottom plate (13); A front mounting cross beam (12), fixedly provided at the bottom end of the front part of the bottom plate (13); An intermediate vertical plate (17), fixedly provided on the upper surface of the intermediate extension of the bottom plate (13).

2. The heavy off-road vehicle according to claim 1, characterized in that: The welded assembly of the mine protection bottom plate (1) further includes an outer frame (10); the outer frame (10) is integrally U-shaped, its front part is welded to the upper end of the inclined plate of the front part of the bottom plate (13), its front parts on the left and right sides are welded to the upper ends of the front vertical plates (11), and its rear parts on the left and right are welded to the outer ends of the rear part of the bottom plate (13).

3. The heavy off-road vehicle according to claim 2, characterized in that: The rear vertical plate (14) includes a rear plate (141) fixedly provided at the inner opening of the rear part of the bottom plate (13), and a vertical plate (142) fixedly provided between the rear plate (141) and the intermediate extension of the bottom plate (13) along the inner opening of the rear part of the bottom plate (13).

4. The heavy off-road vehicle according to claim 3, characterized in that: The front mounting cross beam (12) is in an inverted U-shaped structure, its bottom is fixedly provided on the upper surface of the front part of the bottom plate (13), its front and rear sides are fixedly provided on the front and rear sides of the front part of the bottom plate (13), and its left and right sides are fixedly provided on the inner sides of the two front vertical plates (11); a plurality of screw holes are provided on the upper surface of the front mounting cross beam (12).

5. The heavy off-road vehicle according to claim 4, wherein Both sides of the intermediate extension of the bottom plate (13) are stepped, and energy-absorbing pin mounting plates (16) and third reinforcing ribs (15) are provided on both sides; the intermediate vertical plate (17) is provided between the two energy-absorbing pin mounting plates (16).

6. The heavy off-road vehicle according to claim 5, wherein The front mounting bracket (4) includes a first bent plate (6), and a plurality of first reinforcing ribs (7) fixedly provided on the first bent plate (6); the horizontal surface of the first bent plate (6) is screwed to the screw holes on the upper surface of the front mounting cross beam (12).

7. The heavy off-road vehicle according to claim 6, characterized in that, The rear mounting bracket (5) includes a second bent plate (8), and a plurality of second reinforcing ribs (9) fixedly provided on the second bent plate (8); one end of the rear mounting bracket (5) is connected to the rear plate (141) of the rear vertical plate (14).

8. The heavy off-road vehicle according to claim 7, characterized in that: The energy-absorbing pin mounting bracket (3) includes at least two third bent plates, and the lower part of the energy-absorbing pin mounting bracket (3) is connected to the energy-absorbing pin mounting plate (16) through an energy-absorbing pin (2).

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