Frame for special amphibious vehicle

Abstract

The utility model relates to amphibious vehicle technical field especially relates to a frame for special amphibious operation vehicle, include: crossbeam, it includes several, several crossbeam between parallelly arranged, longitudinal beam, it includes two, two longitudinal beam each other parallelly arranged and perpendicular to crossbeam, single longitudinal beam all with single crossbeam's middle part fixed connection, support vertical roof beam, it includes several, to respectively correspond to support several crossbeam, each support vertical roof beam all are fixed in each crossbeam below, wherein, each crossbeam below fixed with four support vertical roof beam, several walking platform, single walking platform is arranged in the longitudinal beam one side in the middle of adjacent two crossbeam. The utility model has realized the significant promotion of carrying capacity and anti -impact performance, and has balanced the amphibious vehicle to high -strength support and low self -weight buoyancy's contradictory demand fundamentally.

Description

Technical Field

[0001] This utility model relates to the field of amphibious vehicle technology, and in particular to a chassis for a special amphibious operation vehicle. Background Technology

[0002] In existing technologies, the layout of the frame support structure (such as the support beam) is unreasonable, which leads to local stress concentration and easy deformation, making it difficult to withstand alternating impact loads between water and land. Solid or non-lightweight material design results in an excessively heavy frame, which reduces buoyancy on water and increases energy consumption on land, making it difficult to meet the dual requirements of lightweight and high strength for amphibious scenarios.

[0003] Chinese Patent Publication No. CN108791499B discloses a multi-wheeled amphibious vehicle frame assembly, including an upper frame, middle frame, portal frame, upper crossbeam, hood frame, upper longitudinal beam, side vertical beam, upper support beam, lower support beam, wheel hub assembly 1, front U-shaped beam, lower longitudinal beam, rear U-shaped beam, side longitudinal beam, and rear vertical beam. These components are assembled into a cohesive frame unit under the control of tooling fixtures and through orderly welding. This frame assembly is scientifically designed, structurally sound, and possesses good collision resistance, significantly improving the vehicle's rollover resistance and avoiding or significantly reducing injuries to occupants in rollover accidents. It effectively meets the urgent need for developing multi-wheeled or tracked amphibious vehicles and boats. However, this multi-wheeled amphibious vehicle frame assembly suffers from problems such as uneven load distribution, insufficient torsional stiffness, and a contradiction between buoyancy and maneuverability caused by excessive structural weight under complex alternating water and land conditions. Utility Model Content

[0004] Therefore, this utility model provides a chassis for a special amphibious vehicle to overcome the problems of uneven load distribution, insufficient torsional stiffness, and excessive structural weight leading to contradictions in buoyancy and maneuverability in the prior art.

[0005] To achieve the above objectives, this utility model provides a chassis for a special amphibious operation vehicle, comprising:

[0006] A crossbeam, comprising several crossbeams arranged in parallel with each other;

[0007] The longitudinal beam includes two beams, which are arranged parallel to each other and perpendicular to the cross beam. Each longitudinal beam is fixedly connected to the middle of a single cross beam.

[0008] The support vertical beams include several, each corresponding to support several horizontal beams. Each support vertical beam is fixed below each horizontal beam, wherein four support vertical beams are fixed below each horizontal beam.

[0009] A plurality of walking platforms, wherein each walking platform is disposed on one side of the longitudinal beam in the middle of two adjacent crossbeams.

[0010] Furthermore, each of the crossbeams is divided into three segments by the two parallel longitudinal beams, including a left segment, a middle segment, and a right segment. A walking platform is provided between the left segments of two adjacent crossbeams, and a walking platform is provided between the right segments of two adjacent crossbeams. The middle segments of several crossbeams and the two longitudinal beams form the main load-bearing frame area.

[0011] The left and right sections of the two crossbeams located near both ends of the longitudinal beam are each equipped with a cover.

[0012] Furthermore, two supporting vertical beams are fixed below both ends of the left segment of each crossbeam, and two supporting vertical beams are fixed below both ends of the right segment of each crossbeam.

[0013] Furthermore, the main load-bearing frame area includes a front section, a middle section, and a rear section.

[0014] Furthermore, the front section is provided with a replacement tool head bracket for mounting a replacement tool head.

[0015] Furthermore, a guide rail for constraining the driver's seat trajectory is provided above each of the two longitudinal beams in the middle section.

[0016] Furthermore, the rear section is provided with a rear tool bracket for mounting the rear tool.

[0017] Furthermore, several of the supporting vertical beams are provided with mounting holes, and the corresponding several horizontal beams are also provided with mounting channels, through which screws pass and are threadedly connected to nuts.

[0018] Furthermore, a first buffer pad is provided between the mounting hole and the nut, and a second buffer pad is provided between the mounting channel and the screw.

[0019] Furthermore, both the crossbeam and the longitudinal beam are hollow structures, and both the crossbeam and the longitudinal beam are made of steel.

[0020] Compared with the prior art, the beneficial effect of this utility model is that it solves the problems of uneven load-bearing and insufficient torsional stiffness of existing amphibious vehicle frames by using two mutually perpendicular longitudinal beams and several transverse beams in a grid-like support layout, thereby improving the overall load-bearing capacity and impact resistance of the frame, and is especially suitable for high-strength load requirements under complex working conditions of alternating water and land.

[0021] Furthermore, each crossbeam is divided into three segments by the two parallel longitudinal beams, including a left segment, a middle segment, and a right segment. A walking platform is provided between the left segments of two adjacent crossbeams, and a walking platform is provided between the right segments of two adjacent crossbeams. The middle segments of the crossbeams and the longitudinal beams form the main load-bearing frame area. The left and right segments of the two crossbeams located near the ends of the longitudinal beams are each provided with a cover, which solves the problems of mixed functions and low space utilization in traditional frames, realizes force concentration and functional zoning optimization, and improves the installation accuracy and operational stability of core components: replacement tool heads, guide rails, and rear tools.

[0022] Furthermore, by setting four symmetrically distributed support vertical beams under each crossbeam, the problem of local stress concentration and deformation caused by insufficient support points in traditional frames is solved, the load is evenly distributed, and the overall torsional stiffness and load-bearing stability of the frame are improved, making it particularly suitable for the complex stress scenarios of alternating water and land impacts in amphibious operations.

[0023] Furthermore, by setting replacement tool head brackets, guide rails for installing the driver's seat, and rear tool brackets in the front, middle, and rear sections of the main load-bearing frame area, the problems of inconvenient tool replacement and poor modular expandability of amphibious vehicles are solved. This achieves the integration of functions such as quick replacement of tool heads, flexible adjustment of the driver's seat position, and flexible replacement of rear tools, significantly improving the efficiency of multi-scenario operations.

[0024] Furthermore, the installation structure using a screw-nut connection and a buffer pad solves the problem of traditional rigid connections being susceptible to vibration damage, reduces the risk of fatigue failure of the connecting parts, and improves the durability of the frame in bumpy environments by buffering and absorbing vibration.

[0025] Furthermore, by using hollow steel pipes for the several crossbeams and two longitudinal beams, the problem of excessive weight and insufficient buoyancy of traditional solid frame structures is solved, achieving a balance between lightweight design and amphibious mobility, reducing energy consumption on land and improving stability on water.

[0026] Furthermore, by installing a guide rail above each of the two longitudinal beams in the central section for mounting the driver's seat, the problem of poor stability, easy sinking, and high drag on the water surface caused by changes in the overall center of gravity of traditional amphibious vehicles when different types of replacement tool heads or different rear-mounted tools are installed is solved. By setting the guide rail, the driver's seat mounted on it can be moved back and forth, realizing the adjustment of the center of gravity of the amphibious vehicle by changing the position of the driver's seat, improving the stability of the amphibious vehicle when traveling on the water surface, preventing the amphibious vehicle from sinking, and reducing the drag on the amphibious vehicle. Attached Figure Description

[0027] Figure 1 This is a front view of the frame structure of a special amphibious vehicle according to an embodiment of the present invention;

[0028] Figure 2 This is a top view of the frame structure of a special amphibious vehicle according to an embodiment of the present invention;

[0029] Figure 3 For along Figure 2 Cross-sectional view of line AA in the middle;

[0030] Figure 4 for Figure 3 A magnified view of part B in the image;

[0031] Figure 5 for Figure 3 A magnified view of part C;

[0032] In the diagram, 1-crossbeam, 2-longitudinal beam, 3-supporting vertical beam, 4-traveling platform, 5-replacement tool head bracket, 6-guide rail, 7-rear tool bracket, 8-mounting hole, 9-mounting channel, 10-screw, 11-nut, 12-first buffer pad, 13-second buffer pad, 14-track, 15-replacement tool head, 16-cover, 101-left section, 102-middle section, 103-right section. Detailed Implementation

[0033] To make the objectives and advantages of this utility model clearer, the utility model will be further described below with reference to the embodiments; it should be understood that the specific embodiments described herein are only for explaining this utility model and are not intended to limit this utility model.

[0034] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0035] It should be noted that in the description of this utility model, the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.

[0036] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0037] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 as well as Figure 5 As shown, these are respectively the front view, top view, and side view of the frame of the special amphibious vehicle according to an embodiment of this utility model. Figure 2 A cross-sectional view of line AA in the middle. Figure 3 A magnified view of part B and for Figure 3 A magnified view of part C;

[0038] This utility model embodiment is used for the frame of a special amphibious operation vehicle, comprising:

[0039] A crossbeam 1, comprising several crossbeams 1 arranged in parallel with each other;

[0040] The longitudinal beam 2 includes two beams, which are arranged parallel to each other and perpendicular to the crossbeam 1. Each longitudinal beam 2 is fixedly connected to the middle of a single crossbeam 1.

[0041] The supporting vertical beams 3 include several of them, which are used to support several horizontal beams 1 respectively. Each of the supporting vertical beams 3 is fixed below each of the horizontal beams 1, wherein four of the supporting vertical beams 3 are fixed below each of the horizontal beams 1.

[0042] A plurality of walking platforms 4, wherein each walking platform 4 is disposed on one side of the longitudinal beam 2 in the middle of two adjacent crossbeams 1.

[0043] In implementation, the grid-supported layout of two perpendicular longitudinal beams 2 and several transverse beams 1 solved the problems of uneven load distribution and insufficient torsional stiffness of the existing amphibious vehicle frame, and improved the overall load-bearing capacity and impact resistance of the frame, especially adapting to the high-strength load requirements under complex working conditions of alternating water and land.

[0044] Specifically, each of the crossbeams 1 is divided into three segments by the two parallel longitudinal beams 2, including a left segment 101, a middle segment 102, and a right segment 103. A traveling platform 4 is provided between the left segments 101 of two adjacent crossbeams 1, and a traveling platform 4 is provided between the right segments 103 of two adjacent crossbeams 1. The middle segments 102 of several crossbeams 1 and the two longitudinal beams 2 form the main load-bearing frame area. The left segments 101 and right segments 103 of the two crossbeams 1 located near the ends of the longitudinal beams 2 are each provided with a cover 16, which is positioned above the track 14. This design solves the problems of mixed functions and low space utilization in traditional frames, achieves concentrated force and optimized functional zoning, and improves the installation accuracy and operational stability of core components: the replacement tool head 15, the guide rail 6, and the rear tool.

[0045] Specifically, two supporting vertical beams 3 are fixed below both ends of the left segment 101 of each crossbeam 1, and two supporting vertical beams 3 are fixed below both ends of the right segment 103 of each crossbeam 1.

[0046] In practice, by setting four symmetrically distributed support beams 3 under each crossbeam 1, the problem of local stress concentration and deformation caused by insufficient support points in traditional frames is solved, the load is evenly distributed, and the overall torsional stiffness and load-bearing stability of the frame are improved, making it particularly suitable for the complex stress scenarios of alternating water and land impacts in amphibious operations.

[0047] Specifically, the main load-bearing frame area includes a front section, a middle section, and a rear section.

[0048] Specifically, the front section is provided with a replacement tool head bracket 5 for mounting the replacement tool head 15.

[0049] Specifically, a guide rail 6 for constraining the driver's seat trajectory is provided above each of the two longitudinal beams 2 in the middle section.

[0050] In implementation, the guide rail 6 can be either a sliding friction guide rail 6 or a rolling friction guide rail 6, with the preferred embodiment being a rolling friction guide rail 6. Those skilled in the art can make adaptive adjustments or replacements to the type of guide rail 6 according to the actual application scenario or implementation environment.

[0051] In implementation, by setting a guide rail 6 above each of the two longitudinal beams 2 in the middle section to constrain the trajectory of the driver's seat, the problem of poor stability, easy sinking, and high travel resistance of the amphibious vehicle when it is driven on the water surface is solved by replacing different types of replacement tool heads 15 or installing different rear tools. By setting the guide rail 6, the driver's seat installed on it can move back and forth, realizing the adjustment of the center of gravity of the amphibious vehicle by changing the position of the driver's seat, improving the stability of the amphibious vehicle when it is driven on the water surface, avoiding sinking of the amphibious vehicle, and reducing the travel resistance of the amphibious vehicle.

[0052] Specifically, the rear section is provided with a rear tool bracket 7 for mounting rear tools.

[0053] In practice, by setting up replacement tool head brackets 5, guide rails 6 for installing the driver's seat, and rear tool brackets 7 in the front, middle, and rear sections of the main load-bearing frame area, the problems of inconvenient tool replacement and poor modular expandability of amphibious vehicles are solved. This achieves the integration of functions such as quick replacement of tool head 15, flexible adjustment of the driver's seat position, and flexible replacement of rear tools, significantly improving the efficiency of multi-scenario operations.

[0054] Specifically, several of the supporting vertical beams 3 are provided with mounting holes 8, and the corresponding several horizontal beams 1 are also provided with mounting channels 9. The screws 10 pass through the mounting channels 9 and the mounting holes 8 respectively and are threadedly connected to the nuts 11.

[0055] In implementation, the connection method between the supporting vertical beam 3 and the horizontal beam 1 can be welding or threaded connection, with threaded connection being the preferred embodiment. Those skilled in the art can make adaptive adjustments or replacements to the connection method between the supporting vertical beam 3 and the horizontal beam 1 according to the actual application scenario or implementation environment.

[0056] Specifically, a first buffer pad 12 is provided between the mounting hole 8 and the nut 11, and a second buffer pad 13 is provided between the mounting channel 9 and the screw 10.

[0057] In implementation, the installation structure of screw 10-nut 11 connected with buffer pads solves the problem of traditional rigid connections being susceptible to vibration damage, reduces the risk of fatigue failure of the connecting parts, and improves the durability of the frame in bumpy environments by buffering and absorbing vibration.

[0058] In implementation, both the crossbeam 1 and the longitudinal beam 2 are hollow structures, and both are made of steel. This solves the problems of excessive weight and insufficient buoyancy of traditional solid frame structures, achieving a balance between lightweight design and amphibious mobility, reducing energy consumption on land and improving stability on water.

[0059] The technical solution of this utility model has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A chassis for a special amphibious operation vehicle, characterized in that, include: A crossbeam, comprising several crossbeams arranged in parallel with each other; The longitudinal beam includes two beams, which are arranged parallel to each other and perpendicular to the cross beam. Each longitudinal beam is fixedly connected to the middle of a single cross beam. The support vertical beams include several, each corresponding to support several horizontal beams. Each support vertical beam is fixed below each horizontal beam, wherein four support vertical beams are fixed below each horizontal beam. A plurality of walking platforms, wherein each walking platform is disposed on one side of the longitudinal beam in the middle of two adjacent crossbeams.

2. The chassis for a special amphibious operation vehicle according to claim 1, characterized in that, Each of the crossbeams is divided into three segments by the two parallel longitudinal beams, including a left segment, a middle segment and a right segment. A walking platform is provided between the left segments of two adjacent crossbeams, and a walking platform is provided between the right segments of two adjacent crossbeams. The middle segments of several crossbeams and the two longitudinal beams form the main load-bearing frame area. The left and right sections of the two crossbeams located near both ends of the longitudinal beam are each equipped with a cover.

3. The chassis for a special amphibious operation vehicle according to claim 2, characterized in that, Two supporting vertical beams are fixed below both ends of the left segment of each crossbeam, and two supporting vertical beams are fixed below both ends of the right segment of each crossbeam.

4. The chassis for a special amphibious operation vehicle according to claim 3, characterized in that, The main load-bearing frame area includes a front section, a middle section, and a rear section.

5. The chassis for a special amphibious operation vehicle according to claim 4, characterized in that, The front section is provided with a replacement tool head bracket for mounting replacement tool heads.

6. The chassis for a special amphibious operation vehicle according to claim 5, characterized in that, Above each of the two longitudinal beams in the middle section, a guide rail is provided to constrain the trajectory of the driver's seat.

7. The chassis for a special amphibious operation vehicle according to claim 6, characterized in that, The rear section is provided with a rear tool bracket for mounting rear tools.

8. The chassis for a special amphibious operation vehicle according to claim 7, characterized in that, Several of the supporting vertical beams are provided with mounting holes, and the corresponding several horizontal beams are also provided with mounting channels. A screw passes through the mounting channel and the mounting hole respectively and is threadedly connected to a nut.

9. The chassis for a special amphibious operation vehicle according to claim 8, characterized in that, A first buffer pad is provided between the mounting hole and the nut, and a second buffer pad is provided between the mounting channel and the screw.

10. The chassis for a special amphibious operation vehicle according to claim 9, characterized in that, Both the crossbeam and the longitudinal beam are hollow structures, and both are made of steel.

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