Multi-axle special vehicle capable of floor support of the frame

Abstract

The present application relates to a kind of vehicle devices, in particular to a kind of multi-axle special vehicle that can realize frame ground support, including frame, at least two groups of suspension system elastic element group, at least two groups of lower swing arm assembly, at least one group of ground support assembly, each group of the suspension system elastic element group includes first elastic element, second elastic element, the first elastic element one end is hinged to the top edge of the first longitudinal beam, the second elastic element one end is hinged to the top edge of the second longitudinal beam, the lower swing arm assembly includes first lower swing arm, second lower swing arm, swing arm mounting bracket, the ground support assembly is used to support on ground, the first elastic element, the second elastic element shorten when leading the first lower swing arm, the second lower swing arm rotates upwards around respective hinged point, so that the frame moves downward in vertical direction.The present application does not need to install additional structure to lift vehicle, reduce the system complexity and cost of multi-axle vehicle.

Description

Technical Field

[0001] This invention relates to a vehicle device, and more particularly to a multi-axle special vehicle capable of ground-supporting the vehicle frame. Background Technology

[0002] Multi-axle special vehicles serve as the carrying platform for the superstructure system, not only playing a transportation role but also providing mechanical support for the superstructure platform when needed.

[0003] Traditional multi-axle special vehicles, in order to improve stability and provide mechanical support for their superstructure systems, require the vehicle to be extended first. This involves using hydraulic outrigger cylinders installed at the front and rear of the vehicle frame to raise the entire vehicle to a certain height. This vehicle system not only adds an extra hydraulic system structure, requiring a specially designed mounting structure for the hydraulic outrigger cylinders on the frame, resulting in a complex overall system structure and inconvenient maintenance, but also necessitates increased frame rigidity to support the superstructure. Achieving this high rigidity requires strengthening certain parts of the frame structure, significantly increasing the weight of the multi-axle special vehicle and compromising safety and economy. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a multi-axle special vehicle that can achieve ground support of the vehicle frame without the need to install an additional structure to lift the vehicle, thereby reducing the system complexity of multi-axle vehicles, reducing the overall vehicle weight and cost.

[0005] To address the aforementioned technical problems, this application provides the following technical solution:

[0006] This invention enables multi-axle special vehicles with ground-supported chassis, including a chassis, at least two sets of suspension system elastic element groups, at least two sets of lower control arm assemblies, and at least one set of ground-support assemblies. The chassis includes a first longitudinal beam and a second longitudinal beam, which are arranged opposite to and parallel to each other, and are interconnected. Each set of suspension system elastic element groups includes a first elastic element and a second elastic element. One end of the first elastic element is hinged to the top edge of the first longitudinal beam, and the first elastic element is located outside the first longitudinal beam. One end of the second elastic element is hinged to the top edge of the second longitudinal beam, and the second elastic element is located outside the second longitudinal beam. The lower control arm assembly includes a first lower control arm, a second lower control arm, and a control arm mounting bracket. The control arm mounting bracket is disposed between the first and second longitudinal beams, and both ends of the control arm mounting bracket are connected to the first and second longitudinal beams, respectively. One end of the swing arm is hinged to the bottom of the swing arm mounting bracket near the first longitudinal beam, and one end of the second lower swing arm is hinged to the bottom of the mounting bracket near the second longitudinal beam. The other end of the first elastic element is hinged to the middle of the first lower swing arm, and the other end of the second elastic element is hinged to the middle of the second lower swing arm. The ground support assembly is used to support the vehicle on the ground. The suspension system elastic element group, the lower swing arm assembly, and the ground support assembly are all arranged sequentially along the length of the vehicle frame. When the first elastic element and the second elastic element shorten, they drive the first lower swing arm and the second lower swing arm to rotate upward around their respective hinge points, causing the vehicle frame to move downward in the vertical direction until the ground support assembly supports the ground. When the first elastic element and the second elastic element extend, they drive the first lower swing arm and the second lower swing arm to rotate downward around their respective hinge points, causing the vehicle frame to move upward in the vertical direction. The ground support assembly is a certain distance from the ground.

[0007] Furthermore, the suspension system elastic element group also includes a first mounting lug and a second mounting lug. The first mounting lug is connected to the outer side of the top of the first longitudinal beam, and the second mounting lug is connected to the outer side of the top of the second longitudinal beam. The first elastic element is hinged to the first mounting lug, and the second elastic element is hinged to the second mounting lug.

[0008] Furthermore, it also includes at least two sets of upper control arm assemblies, each including a first upper control arm and a second upper control arm. One end of the first upper control arm is hinged to the top of the mounting bracket near the first longitudinal beam, and one end of the second upper control arm is hinged to the top of the mounting bracket near the second longitudinal beam. The outer surfaces of both the first and second upper control arms are used to hinge to the steering knuckle.

[0009] Furthermore, the ground support assembly includes a first ground support, a second ground support, and a third ground support with identical structures. The first ground support, the second ground support, and the third ground support are spaced apart along the length of the vehicle frame. The first ground support includes a first support, a second support, and a support beam. The bottom surfaces of the first support and the second support are flat. The first support is connected to the outer side of the bottom of the first longitudinal beam, the second support is connected to the outer side of the bottom of the second longitudinal beam, and the support beam is connected between the first longitudinal beam and the second longitudinal beam.

[0010] Furthermore, the first support and the first longitudinal beam, as well as the second support and the second longitudinal beam, are connected by bolts and nuts.

[0011] Furthermore, the first support has the same structure as the second support, wherein the first support includes a base plate, a vertical plate, and a plurality of stiffening plates, the vertical plate is connected to the base plate, the vertical plate and the base plate form an L-shape, and the stiffening plates are connected between the vertical plate and the base plate.

[0012] Furthermore, the base plate, the upright plate, and the stiffening plate are all high-strength steel plates. The upright plate is welded to the base plate, and the stiffening plate is welded to the upright plate and to the base plate.

[0013] Furthermore, the supporting beam is welded from high-strength steel plates.

[0014] Furthermore, it also includes a fourth ground support, the position of which corresponds to the position of the vehicle superstructure system. The fourth ground support is a steel plate welded between the first longitudinal beam and the second longitudinal beam, and the bottom of the fourth ground support is flush with the first longitudinal beam and the second longitudinal beam.

[0015] Furthermore, the distance between the fourth landing support and the third landing support is L1, the distance between the third landing support and the second landing support is L2, and the distance between the second landing support and the first landing support is L3, where L2 < L3.

[0016] Compared with the prior art, the present invention enables multi-axle special vehicles with ground-supported chassis to have at least the following beneficial effects:

[0017] This invention enables multi-axle special vehicles with ground-supported chassis. The vehicle comprises a chassis, a suspension system elastic element assembly, a lower control arm assembly, and a ground support assembly. When the first and second elastic elements of the suspension system elastic element assembly shorten, they drive the first and second lower control arms of the lower control arm assembly to rotate upwards around their respective hinge points, causing the chassis to move downwards vertically until the ground support assembly supports the ground. When the first and second elastic elements extend, they drive the first and second lower control arms to rotate downwards around their respective hinge points, causing the chassis to move upwards vertically. The ground support assembly is a certain distance from the ground. This eliminates the need for additional hydraulic systems or other structures to lift the vehicle, reducing the system complexity of multi-axle vehicles, lowering overall vehicle weight, reducing design, production, and maintenance costs, and improving the safety and stability of traditional multi-axle vehicles when providing mechanical support for the superstructure.

[0018] The following description, in conjunction with the accompanying drawings, further illustrates the invention of a multi-axle special vehicle capable of achieving ground-based frame support. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of a multi-axle special vehicle that enables the chassis to be supported on the ground according to the present invention;

[0020] Figure 2 This is a side view structural diagram of a multi-axle special vehicle that can achieve ground support for the vehicle frame in the transportation state according to the present invention;

[0021] Figure 3 This is a side view of a multi-axle special vehicle that provides mechanical support to the superstructure system, as described in this invention, which enables the chassis to be supported on the ground.

[0022] Figure 4 This is a top view schematic diagram of the multi-axle special vehicle that enables the chassis to be supported on the ground according to the present invention;

[0023] Figure 5 This is a schematic diagram of the structure of the first support in a multi-axle special vehicle that can achieve ground support of the vehicle frame according to the present invention;

[0024] Figure 6 This is a schematic diagram showing the spacing between the various ground supports of a multi-axle special vehicle that can achieve ground support of the vehicle frame according to the present invention;

[0025] Figure 7 This is a schematic diagram of the support beam structure of a multi-axle special vehicle that enables the chassis to be supported on the ground, according to the present invention. Detailed Implementation

[0026] like Figure 1 , Figure 2 , Figure 3As shown, the present invention enables multi-axle special vehicles with ground-supported chassis, including a chassis 01, two or more sets of suspension system elastic element groups 02, two or more sets of lower control arm assemblies 03, and one or more sets of ground support assemblies 04. The chassis 01 includes a first longitudinal beam 11 and a second longitudinal beam 12, both of which are plate-like. The first longitudinal beam 11 and the second longitudinal beam 12 are arranged opposite to each other and are parallel to each other. The first longitudinal beam 11 and the second longitudinal beam 12 are interconnected. Each set of suspension system elastic element groups... The lower control arm assembly 02 includes a first elastic element 21 and a second elastic element 22. One end of the first elastic element 21 is hinged to the top edge of the first longitudinal beam 11, and the first elastic element 21 is located outside the first longitudinal beam 11. One end of the second elastic element 22 is hinged to the top edge of the second longitudinal beam 12, and the second elastic element 22 is located outside the second longitudinal beam 12. The lower control arm assembly 03 includes a first lower control arm 31, a second lower control arm 32, and a control arm mounting bracket 33. The control arm mounting bracket 33 is disposed between the first longitudinal beam 11 and the second longitudinal beam 12, and both ends of the control arm mounting bracket 33 are connected to the second longitudinal beam 12. The first lower control arm 31 is connected to the first longitudinal beam 11 and the second longitudinal beam 12 respectively. One end of the first lower control arm 31 is hinged to the bottom of the control arm mounting bracket 33 near the first longitudinal beam 11. One end of the second lower control arm 32 is hinged to the bottom of the mounting bracket 33 near the second longitudinal beam 12. The other end of the first elastic element 21 is hinged to the middle of the first lower control arm 31, and the other end of the second elastic element 22 is hinged to the middle of the second lower control arm 32. The ground support assembly 04 is used to support the suspension system on the ground. The suspension system consists of elastic element group 02, lower control arm assembly 03, and ground support assembly. All components 04 are sequentially arranged along the length of the frame 01. When the first elastic element 21 and the second elastic element 22 shorten, they drive the first lower swing arm 31 and the second lower swing arm 32 to rotate upward around their respective hinge points, causing the frame 01 to move downward in the vertical direction until the ground support assembly 04 supports the ground. When the first elastic element 21 and the second elastic element 22 extend, they drive the first lower swing arm 31 and the second lower swing arm 32 to rotate downward around their respective hinge points, causing the frame 01 to move upward in the vertical direction, and the ground support assembly 04 is a certain distance from the ground. This invention can realize the ground support of multi-axle special vehicles. When in transport mode, such as... Figure 2 As shown, the suspension system's elastic element group 02 is in a balanced position. At this time, the height H of the bottom surface of the frame 01 from the ground meets the vehicle's minimum ground clearance requirement. When a special vehicle provides mechanical support for the superstructure system, such as... Figure 3As shown, the suspension system elastic element group 02 contracts, the lengths of the first elastic element 21 and the second elastic element 22 shorten, the first lower control arm 31 and the second lower control arm 32 rotate upward around their respective hinge points, and the frame 01 moves downward until the ground support assembly 04 supports the ground, providing mechanical support for the superstructure system; when the mechanical support for the superstructure system ends and the special vehicle needs to be switched to the transport state, the first elastic element 21 and the second elastic element 22 extend to the equilibrium state, the first lower control arm 31 and the second lower control arm 32 rotate downward around their respective hinge points, and the height of the frame 01 rises to the transport state. This invention enables multi-axle special vehicles with ground-supported chassis. Comprising a chassis 01, a suspension system elastic element assembly 02, a lower control arm assembly 03, and a ground support assembly 04, the first elastic element 21 and the second elastic element 22 of the suspension system elastic element assembly 02 shorten, causing the first lower control arm 31 and the second lower control arm 32 of the lower control arm assembly 03 to rotate upwards around their respective hinge points. This causes the chassis 01 to move downwards in the vertical direction until the ground support assembly 04 supports the ground. Conversely, when the first elastic element 21 and the second elastic element 22 extend, they cause the first lower control arm 31 and the second lower control arm 32 to rotate downwards around their respective hinge points, causing the chassis 01 to move upwards in the vertical direction. The ground support assembly 04 is a certain distance from the ground. This eliminates the need for additional hydraulic systems or other structures to lift the vehicle, reducing the system complexity of multi-axle vehicles, lowering the overall vehicle weight, reducing design, production, and maintenance costs, and improving the safety and stability of traditional multi-axle vehicles when providing mechanical support for the superstructure system.

[0027] Optionally, the suspension system elastic element group 02 further includes a first mounting lug 23 and a second mounting lug 24. The first mounting lug 23 is connected to the outer top of the first longitudinal beam 11, and the second mounting lug 24 is connected to the outer top of the second longitudinal beam 12. The first elastic element 21 is hinged to the first mounting lug 23, and the second elastic element 22 is hinged to the second mounting lug 24. Specifically, the first mounting lug 23 and the second mounting lug 24 are respectively connected to the first longitudinal beam 11 and the second longitudinal beam 12 by multiple bolts.

[0028] Optionally, it also includes two or more sets of upper control arm assemblies 05. The upper control arm assembly 05 includes a first upper control arm 51 and a second upper control arm 52. One end of the first upper control arm 51 is hinged to the top of the mounting bracket 33 near the first longitudinal beam 11. One end of the second upper control arm 52 is hinged to the top of the mounting bracket 33 near the second longitudinal beam 12. The outer parts of the first upper control arm 51 and the second upper control arm 52 are used to hinge to the steering knuckle. When the frame 01 moves downward or downward in the vertical direction, the first upper control arm 51 and the second upper control arm 52 rotate downward or upward.

[0029] Optionally, such as Figure 1 , Figure 4As shown, the ground support assembly 04 includes a first ground support 41, a second ground support 42, and a third ground support 43 with identical structures. The first ground support 41, the second ground support 42, and the third ground support 43 are spaced apart along the length of the frame 01. The first ground support 41 includes a first support 411, a second support 412, and a support beam 413. The bottom surfaces of the first support 411 and the second support 412 are both flat, machined to form contact surfaces with the ground. The first support 411 is connected to the outer bottom of the first longitudinal beam 11, and the second support 412 is connected to the outer bottom of the second longitudinal beam 12. The support beam 413 connects the first longitudinal beam 11 and the second longitudinal beam 12. Specifically, the first support 411 and the second support 412 are connected to the first longitudinal beam 11 and the second longitudinal beam 12 using high-strength bolts and nuts. Since the bottom surfaces of the first support 411 and the second support 412 are both flat, the horizontality of the contact plane with the ground is ensured, thereby ensuring that the frame is in a horizontal state when it is landed, and improving the safety of the vehicle when providing mechanical support for the superstructure system.

[0030] Optionally, such as Figure 5 As shown, the first support 411 and the second support 412 have the same structure. The first support 411 includes a base plate 4111, a vertical plate 4112, and multiple stiffening plates 4113. The vertical plate 4112 is connected to the base plate 4111, and the vertical plate 4112 and the base plate 4111 form an L-shape. The stiffening plates 4113 are connected between the vertical plate 4112 and the base plate 4111. Specifically, in this embodiment, three stiffening plates 4113 are provided. The stiffening plates 4113 are triangular plates. The base plate 4111, the vertical plate 4112, and the stiffening plates 4113 are all high-strength steel plates, and the base plate 4111, the vertical plate 4112, and the stiffening plates 4113 are welded together. The first support 411 includes a base plate 4111, a vertical plate 4112, and multiple stiffening plates 4113. The stiffening plates 4113 are connected between the vertical plate 4112 and the base plate 4111 to ensure that the first support 411 has sufficient supporting strength.

[0031] Optionally, such as Figure 7 As shown, the support beam 413 is welded from high-strength steel plates and includes a cover plate, upright plate, bottom plate, and pad plate. The pad plate provides support when the frame is on the ground.

[0032] Optionally, such as Figure 4As shown, it also includes a fourth ground support 44. The position of the fourth ground support 44 corresponds to the position of the vehicle's superstructure system. The fourth ground support 44 is a steel plate welded between the first longitudinal beam 11 and the second longitudinal beam 12. The bottom of the fourth ground support 44 is flush with the first longitudinal beam 11 and the second longitudinal beam 12, and the outer side of the bottom of the fourth ground support 44 is a machined flat surface. The position of the fourth support 44 is the point where the vehicle experiences the greatest stress. The fourth ground support 44 is a steel plate welded between the first longitudinal beam 11 and the second longitudinal beam 12. The bottom of the fourth ground support 44 is flush with the first longitudinal beam 11 and the second longitudinal beam 12. When the vehicle provides mechanical support for the superstructure system, the fourth ground support 44 contacts the ground, increasing the contact area between the vehicle and the ground and reducing the structural stress in that area. The outer side of the bottom of the fourth ground support 44 is a machined flat surface to ensure the levelness of the contact surface with the ground, thereby ensuring that the frame is in a horizontal state when landed, improving the stability and structural safety of the vehicle during use.

[0033] Optionally, such as Figure 6 As shown, the distance between the fourth ground support 44 and the third ground support 43 is L1, the distance between the third ground support 43 and the second ground support 42 is L2, and the distance between the second ground support 42 and the first ground support 41 is L3, where L2 < L3. The position of the fourth support 44 is the point where the vehicle experiences the greatest force, and the smaller value of L2 is taken to improve the load-bearing capacity of the frame.

[0034] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A multi-axle special vehicle capable of achieving ground-based frame support, characterized in that, The system includes a frame (01), at least two sets of suspension system elastic element groups (02), at least two sets of lower control arm assemblies (03), and at least one set of ground support assembly (04). The frame (01) includes a first longitudinal beam (11) and a second longitudinal beam (12), which are arranged opposite to each other and parallel to each other. The first longitudinal beam (11) and the second longitudinal beam (12) are connected to each other. Each set of suspension system elastic element groups (02) includes a first elastic element (21) and a second elastic element (22), with one end of the first elastic element (21) hinged to the first elastic element (22). The top edge of a longitudinal beam (11), the first elastic element (21) is located outside the first longitudinal beam (11), one end of the second elastic element (22) is hinged to the top edge of the second longitudinal beam (12), the second elastic element (22) is located outside the second longitudinal beam (12), the lower swing arm assembly (03) includes a first lower swing arm (31), a second lower swing arm (32), and a swing arm mounting bracket (33), the swing arm mounting bracket (33) is disposed between the first longitudinal beam (11) and the second longitudinal beam (12), the two ends of the swing arm mounting bracket (33) are respectively connected to the first longitudinal beam (11) and the second longitudinal beam (12), the... One end of the first lower control arm (31) is hinged to the bottom of the control arm mounting bracket (33) near the first longitudinal beam (11), and one end of the second lower control arm (32) is hinged to the bottom of the control arm mounting bracket (33) near the second longitudinal beam (12). The other end of the first elastic element (21) is hinged to the middle of the first lower control arm (31), and the other end of the second elastic element (22) is hinged to the middle of the second lower control arm (32). The ground support assembly (04) is used to support the ground. The suspension system elastic element group (02), the lower control arm assembly (03), and the ground support assembly (04) are all along the... The frame (01) is arranged sequentially along its length. When the first elastic element (21) and the second elastic element (22) shorten, they drive the first lower swing arm (31) and the second lower swing arm (32) to rotate upward around their respective hinge points, causing the frame (01) to move downward in the vertical direction until the ground support assembly (04) supports the ground. When the first elastic element (21) and the second elastic element (22) extend, they drive the first lower swing arm (31) and the second lower swing arm (32) to rotate downward around their respective hinge points, causing the frame (01) to move upward in the vertical direction. The ground support assembly (04) is a certain distance from the ground.

2. The multi-axle special vehicle capable of achieving ground-based frame support according to claim 1, characterized in that, The suspension system elastic element group (02) further includes a first mounting lug (23) and a second mounting lug (24). The first mounting lug (23) is connected to the outer top of the first longitudinal beam (11), and the second mounting lug (24) is connected to the outer top of the second longitudinal beam (12). The first elastic element (21) is hinged to the first mounting lug (23), and the second elastic element (22) is hinged to the second mounting lug (24).

3. The multi-axle special vehicle capable of achieving ground-based frame support according to claim 2, characterized in that, It also includes at least two sets of upper control arm assemblies (05), the upper control arm assembly (05) including a first upper control arm (51) and a second upper control arm (52), one end of the first upper control arm (51) is hinged to the top of the control arm mounting bracket (33) near the first longitudinal beam (11), and one end of the second upper control arm (52) is hinged to the top of the control arm mounting bracket (33) near the second longitudinal beam (12). The outer sides of the first upper control arm (51) and the outer sides of the second upper control arm (52) are both used to hinge to the steering knuckle.

4. The multi-axle special vehicle capable of achieving ground-based frame support according to claim 3, characterized in that, The ground support assembly (04) includes a first ground support (41), a second ground support (42), and a third ground support (43) with the same structure. The first ground support (41), the second ground support (42), and the third ground support (43) are spaced apart along the length of the frame (01). The first ground support (41) includes a first support (411), a second support (412), and a support beam (413). The bottom surfaces of the first support (411) and the second support (412) are flat. The first support (411) is connected to the outer bottom of the first longitudinal beam (11), the second support (412) is connected to the outer bottom of the second longitudinal beam (12), and the support beam (413) is connected between the first longitudinal beam (11) and the second longitudinal beam (12).

5. The multi-axle special vehicle capable of achieving ground-based frame support according to claim 4, characterized in that, The first support (411) and the first longitudinal beam (11) are connected by bolts and nuts, and the second support (412) and the second longitudinal beam (12) are connected by bolts and nuts.

6. The multi-axle special vehicle capable of achieving ground-based frame support according to claim 5, characterized in that, The first support (411) has the same structure as the second support (412). The first support (411) includes a base plate (4111), a vertical plate (4112), and a plurality of stiffening plates (4113). The vertical plate (4112) is connected to the base plate (4111). The vertical plate (4112) and the base plate (4111) form an L-shape. The stiffening plates (4113) are connected between the vertical plate (4112) and the base plate (4111).

7. The multi-axle special vehicle capable of achieving ground-based frame support according to claim 6, characterized in that, The base plate (4111), the upright plate (4112), and the stiffening plate (4113) are all high-strength steel plates. The upright plate (4112) is welded to the base plate (4111), and the stiffening plate (4113) is welded to the upright plate (4112) and to the base plate (4111).

8. The multi-axle special vehicle capable of achieving ground-based frame support according to claim 7, characterized in that, The supporting beam (413) is welded from high-strength steel plates.

9. The multi-axle special vehicle capable of achieving ground-based frame support according to claim 8, characterized in that, It also includes a fourth ground support (44), the position of which corresponds to the position of the vehicle superstructure system. The fourth ground support (44) is a steel plate welded between the first longitudinal beam (11) and the second longitudinal beam (12). The bottom of the fourth ground support (44) is flush with the first longitudinal beam (11) and the second longitudinal beam (12).

10. The multi-axle special vehicle capable of achieving ground-based frame support according to claim 9, characterized in that, The distance between the fourth ground support (44) and the third ground support (43) is L1, the distance between the third ground support (43) and the second ground support (42) is L2, and the distance between the second ground support (42) and the first ground support (41) is L3, where L2 < L3.

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