Bearing type vehicle body and vehicle

Abstract

The invention discloses a bearing type vehicle body and a vehicle, and relates to the field of automobile spare parts, the bearing type vehicle body comprises a longitudinal beam, a first supporting structure and an air spring mounting structure, the longitudinal beam defines a mounting space extending in the length direction of the longitudinal beam, the first supporting structure is arranged in the installation space and fixedly connected with the longitudinal beam, the air spring installation structure is arranged below the longitudinal beam and fixedly connected with the longitudinal beam, and the air spring installation structure is used for installing an air spring of a vehicle. According to the bearing type vehicle body, the structural strength of the longitudinal beam can be improved through the first supporting structure, so that the safety and stability when the air spring and the longitudinal beam are assembled in a matched mode are improved, and the bearing type vehicle body meets the installation strength requirement of the air spring.

Description

Technical Field

[0001] This invention relates to the field of automotive parts, and more particularly to a monocoque chassis and a vehicle having the monocoque chassis. Background Technology

[0002] In related technologies, when air springs are installed on a vehicle, the vehicle body needs to provide a strong mounting structure for support. When air springs are installed on a non-load-bearing vehicle body, they can be mounted on the frame, resulting in higher rigidity. However, when air springs are installed on a load-bearing vehicle body, meeting the installation strength requirements for the air springs remains a challenging problem for load-bearing body designers. Summary of the Invention

[0003] This invention aims to at least solve one of the technical problems existing in the prior art. Therefore, one object of this invention is to provide a monocoque chassis that meets the installation strength requirements of air springs.

[0004] The present invention further proposes a vehicle using the above-described monocoque body.

[0005] According to a first aspect of the present invention, a load-bearing vehicle body includes: a longitudinal beam, a first support structure, and an air spring mounting structure, wherein the longitudinal beam defines an installation space extending along the length direction of the longitudinal beam, the first support structure is disposed within the installation space and fixedly connected to the longitudinal beam, and the air spring mounting structure is disposed below the longitudinal beam and fixedly connected to the longitudinal beam, the air spring mounting structure being used to install air springs of the vehicle.

[0006] According to the embodiments of this application, the first support structure of the load-bearing body can improve the structural strength of the longitudinal beam, thereby improving the safety and stability when the air spring is assembled with the longitudinal beam, so that the load-bearing body meets the installation strength requirements of the air spring.

[0007] According to some embodiments of the present invention, the air spring mounting structure corresponds to the first support structure along the height direction of the load-bearing vehicle body.

[0008] According to some embodiments of the present invention, the load-bearing vehicle body further includes: a first reinforcing member, the first reinforcing member being located outside the longitudinal beam and fixed to the side wall of the longitudinal beam, and the first reinforcing member being fixedly connected to the air spring mounting structure.

[0009] According to some embodiments of the present invention, the first support structure is fixedly connected to at least one of the top wall, side wall and bottom wall of the longitudinal beam.

[0010] According to some embodiments of the present invention, the first support structure includes: a first support body and a second support body fixedly connected, the first support body being located above the second support body, the first support body being fixedly connected to the top wall and the side wall, and the second support body being fixedly connected to the bottom wall.

[0011] According to some embodiments of the present invention, the load-bearing vehicle body further includes: a second support structure, the second support structure being disposed within the installation space, and the second support structure being fixedly connected to at least one of the top wall, side wall and bottom wall of the longitudinal beam, the second support structure being located in front of the first support structure along the length direction of the longitudinal beam, and a portion of the first support structure being disposed between the second support structure and the bottom wall of the longitudinal beam.

[0012] According to some embodiments of the present invention, the load-bearing vehicle body further includes: a third support structure, the third support structure being disposed within the installation space, and the third support structure being fixedly connected to at least one of the top wall, side wall and bottom wall of the longitudinal beam, and the third support structure being located behind the first support structure along the length direction of the longitudinal beam.

[0013] According to some embodiments of the present invention, the longitudinal beam has two sidewalls, a first space is formed between the first support structure and one of the sidewalls, and a second space is formed between the first support structure and the other sidewall, the first space and the second space being arranged along the width direction of the longitudinal beam.

[0014] According to some embodiments of the present invention, the longitudinal beam includes a first beam and a second beam. Along the width direction of the longitudinal beam, the first beam is located on one side of the second beam. The first beam and the second beam are fixedly connected to define the installation space. A portion of the structure of the second beam forms the bottom wall of the longitudinal beam. A portion of the first support structure is sandwiched between the first beam and the bottom wall.

[0015] The vehicle according to a second aspect of the present invention includes the monocoque body described in the above embodiments.

[0016] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0018] Figure 1 This is a side view of a monocoque vehicle body according to an embodiment of this application;

[0019] Figure 2 This is another schematic diagram of the monocoque vehicle body according to an embodiment of this application;

[0020] Figure 3 This is a side view of the monocoque vehicle body according to an embodiment of this application;

[0021] Figure 4 This is an assembly diagram of the second beam, the first supporting structure, the air spring mounting structure, the first reinforcing member, and the second supporting structure according to an embodiment of this application.

[0022] Figure 5 This is a schematic diagram of the first support structure according to an embodiment of this application;

[0023] Figure 6 This is a schematic diagram of the assembly of the air spring mounting structure and the first reinforcing member according to an embodiment of this application.

[0024] Figure label:

[0025] Monocoque chassis 1,

[0026] Longitudinal beam 10, installation space 11, second space 111, first beam 12, second beam 13, upper plate of second beam 131, lower plate of second beam 132, top wall 14, side wall 15, bottom wall 16.

[0027] First support structure 20, first support body 21, first support plate 211, first sub-plate 2111, second sub-plate 2112, third sub-plate 2113, first connecting plate 212, second connecting plate 213.

[0028] Second support body 22, second support plate 221, third connecting plate 222

[0029] Air spring mounting structure 30, first flange 31, first clearance part 32.

[0030] First reinforcing member 40, first plate 41, second plate 42.

[0031] Second support structure 50, second flange 51. Detailed Implementation

[0032] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0033] The following is for reference. Figures 1-6 A monocoque body 1 is described according to an embodiment of the present invention.

[0034] According to the first aspect of the present invention, the body 1 of the load-bearing vehicle is as follows: Figures 1-6 As shown, the monocoque body 1 may include: a longitudinal beam 10, a first support structure 20 and an air spring mounting structure 30. The longitudinal beam 10 defines an installation space 11 extending along the length direction of the longitudinal beam 10. The first support structure 20 is disposed in the installation space 11 and fixedly connected to the longitudinal beam 10. The air spring mounting structure 30 is disposed below the longitudinal beam 10 and fixedly connected to the longitudinal beam 10. The air spring mounting structure 30 is used to install the air spring of the vehicle.

[0035] It should be noted that in related technologies, when air springs are installed on a vehicle, the vehicle body needs to provide a strong mounting structure for support. When air springs are installed on a non-load-bearing vehicle body, they can be mounted on the frame, resulting in higher rigidity. However, when air springs are installed on a load-bearing vehicle body, meeting the installation strength requirements for the air springs remains a challenging problem for load-bearing body designers.

[0036] Based on this, this application proposes a load-bearing vehicle body 1, wherein the longitudinal beam 10 defines an installation space 11 extending along the length direction of the longitudinal beam 10, and when the longitudinal beam 10 is as follows... Figure 1 When setting the direction, the length direction of the longitudinal beam 10 is... Figure 1 In the X direction. Along the length direction of the longitudinal beam 10, both ends of the longitudinal beam 10 can be open. Along the width direction of the longitudinal beam 10, one side of the longitudinal beam 10 can be partially open, when the longitudinal beam 10 is as follows. Figure 2 When setting the direction, the width direction of the longitudinal beam 10 is... Figure 2 The first support structure 20 is located within the installation space 11 and is fixedly connected to the longitudinal beam 10. The first support structure 20 can also be welded to the longitudinal beam 10. The first support structure 20 can support the longitudinal beam 10 along its height, thereby increasing the structural strength of the longitudinal beam 10. When the longitudinal beam 10... Figure 1 When setting the direction, the height direction of the longitudinal beam 10 is... Figure 1 The Z-direction in the middle.

[0037] Along the height direction of the longitudinal beam 10, the air spring mounting structure 30 is located below the longitudinal beam 10. The air spring mounting structure 30 can be welded to the longitudinal beam 10, and the air spring can be connected to the longitudinal beam 10 through the air spring mounting structure 30, thereby achieving the effect of connecting the air spring to the monocoque body 1. When the air spring is applied to a vehicle using the monocoque body 1, the air spring can be fixed to the vehicle's suspension system, and the air spring can abut against the air spring mounting structure 30. When the air spring is inflated, it can support the monocoque body 1. In this embodiment, the air spring mounting structure 30 can be constructed as a plate with a circular cross-section. The air spring mounting structure 30 can have a first flange 31. When the air spring mounting structure 30 is installed on the longitudinal beam 10, an air spring mounting surface is formed on the side of the air spring mounting structure 30 facing away from the longitudinal beam 10. By providing the first flange 31, the surface precision of the air spring mounting surface can be improved during production, thereby ensuring a tighter contact between the air spring and the air spring mounting structure 30, reducing installation errors, improving overall installation accuracy, and reducing friction between the air spring and the air spring mounting structure 30, thus extending the service life of the air spring. The air spring mounting structure 30 can also have a first clearance portion 32, which can clearance portion 32 can avoid parts of the air spring structure, allowing the air spring to better cooperate and assemble with the air spring mounting structure 30.

[0038] In this embodiment, the first support structure 20 can improve the structural strength of the longitudinal beam 10, thereby improving the safety and stability when the air spring is assembled with the longitudinal beam 10, so that the load-bearing body 1 meets the installation strength requirements of the air spring.

[0039] In some embodiments of the present invention, such as Figure 4 As shown, along the height direction of the load-bearing body 1, the air spring mounting structure 30 corresponds to the first support structure 20.

[0040] Along the height direction of the longitudinal beam 10, the first support structure 20 supports the top wall 14 and bottom wall 16 of the longitudinal beam 10, thereby improving the structural strength of the longitudinal beam 10. The air spring mounting structure 30 is located below the longitudinal beam 10, along the height direction of the load-bearing vehicle body 1 (i.e., the height direction of the longitudinal beam 10). The air spring mounting structure 30 and the first support structure 20 are correspondingly arranged. The air spring mounting structure 30 and the first support structure 20 can be welded together. The air spring mounting structure 30, the bottom wall 16 of the longitudinal beam 10, and the first support structure 20 form a three-layer welded structure, which helps to improve the structural strength and stiffness at the connection between the air spring mounting structure 30 and the longitudinal beam 10, thereby improving the reliability and safety of the air spring mounting structure 30 installation to meet the installation strength requirements of the air spring. It also enables the transmission of force of the air spring along the height direction of the longitudinal beam 10. When the air spring is inflated, it supports the longitudinal beam 10, thus supporting the load-bearing vehicle body 1.

[0041] In some embodiments of the present invention, such as Figure 3 and Figure 6 As shown, the load-bearing body 1 may further include: a first reinforcing member 40, which is located outside the longitudinal beam 10 and fixed to the side wall 15 of the longitudinal beam 10, and the first reinforcing member 40 is fixedly connected to the air spring mounting structure 30.

[0042] The first reinforcing member 40 is disposed on the outside of the longitudinal beam 10. The first reinforcing member 40 can be constructed as an L-shaped structure or a similar L-shaped structure. The first reinforcing member 40 may include a first plate 41 and a second plate 42, which form an included angle, which can be a right angle or a similar right angle. The first plate 41 can be welded to the side wall 15 of the longitudinal beam 10, and the second plate 42 can be welded to the air spring mounting structure 30. The second plate 42 can be welded only to the air spring mounting structure 30. The second plate 42 can also be connected between the bottom wall 16 of the longitudinal beam 10 and the air spring mounting structure 30. In this embodiment, the second plate 42 is connected between the bottom wall 16 of the longitudinal beam 10 and the air spring mounting structure 30 as an example. The second plate 42 is also welded to the bottom wall 16 of the longitudinal beam 10. The first reinforcing member 40 can improve the connection strength between the air spring mounting structure 30 and the longitudinal beam 10, so that the air spring mounting structure 30 is more firmly fixed on the longitudinal beam 10, thereby improving the safety of the air spring during use.

[0043] As an example, the cross-sectional dimension of the second plate 42 can be smaller than the cross-sectional dimension of the air spring mounting structure 30, and the second plate 42 can abut against a portion of the air spring mounting structure 30.

[0044] As another example, the cross-sectional dimensions of the second plate 42 can be equal to the cross-sectional dimensions of the air spring mounting structure 30, and the second plate 42 can be sandwiched between the air spring mounting structure 30 and the bottom wall 16 of the longitudinal beam 10.

[0045] In some embodiments of the present invention, the first support structure 20 is fixedly connected to at least one of the top wall 14, side wall 15 and bottom wall 16 of the longitudinal beam 10.

[0046] The first support structure 20 can be connected to any one of the top wall 14, side wall 15, and bottom wall 16 of the longitudinal beam 10, or the first support structure 20 can be connected to any two of the top wall 14, side wall 15, and bottom wall 16 of the longitudinal beam 10, or the first support structure 20 can be connected to all of the top wall 14, side wall 15, and bottom wall 16 of the longitudinal beam 10. This embodiment of the application uses the example of the first support structure 20 being connected to all of the top wall 14, side wall 15, and bottom wall 16 of the longitudinal beam 10 for illustration. The first support structure 20 can also be welded to all of the top wall 14, side wall 15, and bottom wall 16 of the longitudinal beam 10. As an example, the first support structure 20 can form multiple flanges, which can be welded to the top wall 14, side wall 15 and bottom wall 16 of the longitudinal beam 10 respectively, thereby achieving a fixed connection between the first support structure 20 and the top wall 14, side wall 15 and bottom wall 16 of the longitudinal beam 10, ensuring the connection strength between the first support structure 20 and the longitudinal beam 10, which is beneficial to improving the ability of the first support structure 20 to support the longitudinal beam 10 and improving the stability of the first support structure 20 in supporting the longitudinal beam 10.

[0047] As an example, the first support structure 20 can be constructed as a single piece. When the first support structure 20 is installed on the longitudinal beam 10, flanges can be formed at both the upper and lower ends of the first support structure 20 along the height direction of the longitudinal beam 10. The first support structure 20 is welded to the top wall 14 and bottom wall 16 of the longitudinal beam 10 through multiple flanges. The first support structure 20 can also form flanges that can be connected to the side wall 15 of the longitudinal beam 10, thereby achieving multiple connections with the longitudinal beam 10.

[0048] As another example, the first support structure 20 can be constructed as a split component. The first support structure 20 can be composed of multiple first support substructures, which are connected along the height direction of the longitudinal beam 10, thereby achieving the effect of the first support structure 20 supporting the longitudinal beam 10 along the height direction of the longitudinal beam 10. Each of the multiple first support substructures can be provided with flanges, and the multiple first substructures are welded to the top wall 14, side wall 15, and bottom wall 16 of the longitudinal beam 10 through corresponding flanges, thereby achieving a fixed connection between the first support structure 20 and the longitudinal beam 10.

[0049] In some embodiments of the present invention, such as Figure 5As shown, the first support structure 20 may include: a first support body 21 and a second support body 22 fixedly connected. The first support body 21 is located above the second support body 22. The first support body 21 is fixedly connected to the top wall 14 and the side wall 15. The second support body 22 is fixedly connected to the bottom wall 16.

[0050] The first support body 21 and the second support body 22 can be welded together. Along the height direction of the longitudinal beam 10, the first support body 21 is located above the second support body 22, and the second support body 22 can support the first support body 21. The first support body 21 can be welded to the top wall 14 and the side wall 15 of the longitudinal beam 10, and the second support body 22 can be welded to the bottom wall 16 of the longitudinal beam 10. The first support body 21 and the second support body 22 together support the longitudinal beam 10.

[0051] As an example, the first support body 21 may include a first support plate 211, a first connecting plate 212, and a second connecting plate 213. The first support plate 211, the first connecting plate 212, and the second connecting plate 213 may be integrally formed. The first support plate 211 may be used to support the longitudinal beam 10. The first connecting plate 212 may be welded to the top wall 14 of the longitudinal beam 10, and the second connecting plate 213 may be welded to the side wall 15 of the longitudinal beam 10. There may be multiple first connecting plates 212 and multiple second connecting plates 213. This application uses two first connecting plates 212 and two second connecting plates 213 as an example for illustration. Along the height direction of the longitudinal beam 10, the two first connecting plates 212 may both be located on the top of the first support plate 211. Along the length direction of the longitudinal beam 10, the two first connecting plates 212 may be located on both sides of the first support plate 211. Along the height direction of the longitudinal beam 10, the two second connecting plates 213 can both be located in the middle of the first support plate 211. Along the length direction of the longitudinal beam 10, the two second connecting plates 213 can be located on both sides of the first support plate 211. The first support plate 211 can be fixedly connected to the top wall 14 of the longitudinal beam 10 through the two first connecting plates 212, and the first support plate 211 can be fixedly connected to the side wall 15 of the longitudinal beam 10 through the two second connecting plates 213. By setting the first connecting plates 212 and the second connecting plates 213, the connection strength between the first support body 21 and the top wall 14 and side wall 15 of the longitudinal beam 10 can be improved. It also makes it easier for the first support body 21 to be fixedly connected to the top wall 14 and side wall 15 of the longitudinal beam 10, which helps to simplify the installation difficulty of the first support body 21 and improve the installation efficiency of the first support body 21.

[0052] As an example, the first support plate 211 may include a first sub-plate 2111, a second sub-plate 2112, and a third sub-plate 2113, which may be integrally formed. Along the length of the longitudinal beam 10, the first sub-plate 2111 is located between the second sub-plate 2112 and the third sub-plate 2113. An included angle is formed between the first sub-plate 2111 and the second sub-plate 2112, which may be an obtuse angle. An included angle is also formed between the first sub-plate 2111 and the third sub-plate 2113, which may be an obtuse angle.

[0053] As an example, the second support body 22 may include a second support plate 221 and a third connecting plate 222. The third connecting plate 222 may extend along the height direction of the longitudinal beam 10. There may be multiple third connecting plates 222, and each of the multiple third connecting plates 222 may be welded to the first support plate 211, thereby improving the connection strength between the first support body 21 and the second support body 22. The second support plate 221 may form a three-layer welded structure with the bottom wall 16 of the longitudinal beam 10 and the air spring mounting structure 30, thereby improving the connection strength between the air spring mounting structure 30 and the longitudinal beam 10, and also realizing the effect of the air spring transmitting the supporting force upward.

[0054] In some embodiments of the present invention, the first support body 21 may include a first support plate 211, which may include a first sub-plate 2111, a second sub-plate 2112, and a third sub-plate 2113, all of which are integrally formed. The second support body 22 may include a second support plate 221 and a third connecting plate 222, which may include multiple third connecting plates 222, all of which may be welded to the first support plate 211. There may be two second support bodies 22, which may be located at both ends of the first support body 21 along the height direction of the longitudinal beam 10. The first support body 21 may be connected to both second support bodies 22, and the first support body 21 may be welded to the top wall 14 and bottom wall 16 of the longitudinal beam 10 via the two second support bodies 22.

[0055] In some embodiments of the present invention, such as Figure 1 As shown, the load-bearing body 1 may further include: a second support structure 50, which is disposed within the installation space 11 and is fixedly connected to at least one of the top wall 14, side wall 15 and bottom wall 16 of the longitudinal beam 10. Along the length direction of the longitudinal beam 10, the second support structure is located in front of the first support structure 20, and a portion of the first support structure 20 is disposed between the second support structure 50 and the bottom wall 16 of the longitudinal beam 10.

[0056] The second support structure 50 is disposed within the installation space 11 and can be used to support the longitudinal beam 10. The second support structure 50 can be fixedly connected to any one of the top wall 14, side wall 15, and bottom wall 16 of the longitudinal beam 10, or the second support structure 50 can be connected to any two of the top wall 14, side wall 15, and bottom wall 16 of the longitudinal beam 10, or the second support structure 50 can be connected to all of the top wall 14, side wall 15, and bottom wall 16 of the longitudinal beam 10. In this embodiment, the connection between the second support structure 50 and the top wall 14 and bottom wall 16 of the longitudinal beam 10 is used as an example for illustration. As an example, the second support structure 50 may include a second flange 51. The second flange 51 may be provided at both ends of the second support structure 50 along the height direction of the longitudinal beam 10. There may be two second flanges 51. The two second flanges 51 may be welded to the bottom wall 16 and the top wall 14 of the longitudinal beam 10, respectively. By providing the second flanges 51, the second support structure 50 can be easily fixedly connected to the longitudinal beam 10, so that the second support structure 50 can support the longitudinal beam 10, which is beneficial to improving the structural strength of the longitudinal beam 10. The second support structure 50 may also connect the top wall 14 and the bottom wall 16 of the longitudinal beam 10.

[0057] Along the length of the longitudinal beam 10, the second support structure 50 is located in front of the first support structure 20. When the longitudinal beam 10 is as follows... Figure 4 When setting the direction, the front side of the first support structure 20 is... Figure 4 The first support structure 20 is located on the left side. The second support structure 50 can support the longitudinal beam 10 at the front side of the first support structure 20, that is, the front side of the connection between the air spring mounting structure 30 and the longitudinal beam 10. Part of the second support body 22 can be located between the second support structure 50 and the bottom wall 16 of the longitudinal beam 10. In this embodiment, the second support structure 50 can be located at the bend of the longitudinal beam 10 on the front side of the first support structure 20. Part of the structure of the second support plate 221 can be located between the second support structure 50 and the bottom wall 16 of the longitudinal beam 10. The second support plate 221 can be welded to the second flange 51 of the second support structure 50 and the bottom wall 16 of the longitudinal beam 10, respectively, thereby achieving a fixed connection between the second support structure 50, the first support structure 20, and the bottom wall 16 of the longitudinal beam 10. The second support plate 221, the second flange 51, and the bottom wall 16 of the longitudinal beam 10 form a three-layer welded structure. The second support structure 50 can provide extended support for the connection between the air spring mounting structure 30 and the longitudinal beam 10, enabling the air spring to transmit force to the front side of the longitudinal beam 10, making the longitudinal beam 10 bear force evenly, which is beneficial to improving the service life of the longitudinal beam 10.

[0058] In some embodiments of the present invention, the load-bearing vehicle body 1 may further include: a third support structure, which is disposed in the installation space 11 and is fixedly connected to at least one of the top wall 14, side wall 15 and bottom wall 16 of the longitudinal beam 10. Along the length direction of the longitudinal beam 10, the third support structure is located behind the first support structure 20.

[0059] The third support structure is located within the installation space 11 and can be used to support the longitudinal beam 10. The third support structure can be fixedly connected to any one of the top wall 14, side wall 15, and bottom wall 16 of the longitudinal beam 10, or the third support structure can be connected to any two of the top wall 14, side wall 15, and bottom wall 16 of the longitudinal beam 10, or the third support structure can be connected to all of the top wall 14, side wall 15, and bottom wall 16 of the longitudinal beam 10. In this embodiment, the example of the third support structure being connected to all of the top wall 14, side wall 15, and bottom wall 16 of the longitudinal beam 10 will be used for illustration. As an example, the third support structure may include a third flange, which may be located at both ends of the third support structure along the height direction of the longitudinal beam 10. There may be two third flanges, which may be welded to the bottom wall 16 and the top wall 14 of the longitudinal beam 10, respectively. The third support structure can support the longitudinal beam 10 through the third flange, which helps to improve the structural strength of the longitudinal beam 10. The third support structure can also connect the top wall 14 and the bottom wall 16 of the longitudinal beam 10. The third support structure may also include a third connecting plate 222, which is integrally formed with the third support structure. The third connecting plate 222 may be located on the side of the third support structure near the first support structure 20 along the length direction of the longitudinal beam 10. The third connecting plate 222 may be welded to the side wall 15 of the longitudinal beam 10. The third support structure is fixedly connected to the side wall 15 of the longitudinal beam 10 through the third connecting plate 222, which helps to improve the connection strength between the third support structure and the longitudinal beam 10, thereby improving the ability of the third support structure to support the longitudinal beam 10.

[0060] Along the length of the longitudinal beam 10, the third support structure is located behind the first support structure 20. The third support structure is located on the side of the first support structure 20 away from the second support structure 50. The third support structure can support the longitudinal beam 10 at the rear of the first support structure 20, that is, the rear side of the connection between the air spring mounting structure 30 and the longitudinal beam 10. This achieves the effect of the second support structure 50, the first support structure 20 and the third support structure jointly supporting the longitudinal beam 10 along the length of the longitudinal beam 10, so that the longitudinal beam 10 is subjected to uniform force, which is conducive to improving the structural strength of the longitudinal beam 10 and enabling the load-bearing body 1 to meet the installation strength requirements of the air spring.

[0061] In some embodiments of the present invention, such as Figure 2As shown, the longitudinal beam 10 has two side walls 15. A first space is formed between the first support structure 20 and one side wall 15, and a second space 111 is formed between the first support structure 20 and the other side wall 15. The first space and the second space 111 are arranged along the width direction of the longitudinal beam 10.

[0062] Along the width direction of the longitudinal beam 10, the longitudinal beam 10 has two side walls 15. A first space is formed between the first supporting structure 20 and one side wall 15, and a second space 111 is formed between the first supporting structure 20 and the other side wall 15. One of the first space and the second space 111 can be constructed as a closed cavity, and the other as an open cavity along the length direction of the longitudinal beam 10. The first space and the second space 111 are arranged along the width direction of the longitudinal beam 10, and together they constitute the installation space 11. This embodiment of the application uses the example of the first space being a closed cavity and the second space 111 being an open cavity along the length direction of the longitudinal beam 10 for illustration. The first space can be jointly formed by the first supporting structure 20, one side wall 15 of the longitudinal beam 10, the top wall 14 of the longitudinal beam 10, and the bottom wall 16. The first space can be constructed as a cavity with a trapezoidal or similar cross-section. The second space 111 can be formed by the first support structure 20, the other side wall 15 of the longitudinal beam 10, the top wall 14 of the longitudinal beam 10, and the bottom wall 16. The first space is located above the air spring mounting structure 30. The first space can improve the structural strength at the junction of the longitudinal beam 10 and the air spring mounting structure 30, and improve the upward support capacity of the longitudinal beam 10 at this location. Furthermore, when the monocoque body 1 is subjected to a high-speed impact, the first space can absorb the impact energy. When the monocoque body 1 is subjected to a low-speed impact, the second space 111 can disperse and absorb the impact energy, reduce the deformation of the longitudinal beam 10, and extend the service life of the longitudinal beam 10.

[0063] In some embodiments of the present invention, such as Figure 2 As shown, the longitudinal beam 10 may include a first beam body 12 and a second beam body 13. Along the width direction of the longitudinal beam 10, the first beam body 12 is located on one side of the second beam body 13. The first beam body 12 and the second beam body 13 are fixedly connected to define the installation space 11. A part of the structure of the second beam body 13 forms the bottom wall 16 of the longitudinal beam 10. A part of the first support structure 20 is sandwiched between the first beam body 12 and the bottom wall 16.

[0064] Along the width direction of the longitudinal beam 10, the first beam 12 is located on one side of the second beam 13. The first beam 12 can be constructed as a plate, and the second beam 13 can be constructed as a plate with a Z-shaped cross-section. The first beam 12 can be welded to the second beam 13. The first beam 12 and the second beam 13 are fixedly connected to jointly define the installation space 11. The first support structure 20 and the second beam 13 jointly define the first space. In this embodiment, the first beam 12 can be one of the side walls 15 of the longitudinal beam 10, a portion of the structure of the second beam 13 forms the top wall 14 of the longitudinal beam 10, a portion of the structure of the second beam 13 forms the other side wall 15 of the longitudinal beam 10, and a portion of the structure of the second beam 13 forms the bottom wall 16 of the longitudinal beam 10. The first support structure 20 is connected to the bottom wall 16 of the longitudinal beam 10. Part of the first support structure 20 is also welded to the first beam 12. Part of the first support structure 20 is sandwiched between the first beam 12 and the bottom wall 16 of the longitudinal beam 10. The second support body 22, the first beam 12 and the bottom wall 16 of the longitudinal beam 10 form a three-layer welded structure, thereby improving the connection strength between the first beam 12 and the second beam 13.

[0065] In this embodiment, the second beam 13 may include an upper plate 131 and a lower plate 132. The upper plate 131 and the lower plate 132 are connected by welding. The second beam 13 is constructed as a split structure, which facilitates production and helps to improve production efficiency.

[0066] The vehicle according to a second aspect of the present invention includes the monocoque body 1 described in the above embodiments.

[0067] According to the vehicle of the present application embodiment, using the load-bearing body 1 in the above embodiment, the effect of using air springs on the vehicle can be achieved, the height of the vehicle body can be adjusted, vehicle vibration can be reduced, and the comfort of the vehicle can be improved.

[0068] The load-bearing body 1 and other components and operations of the vehicle according to embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0069] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0070] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A monocoque chassis, characterized in that, include: A longitudinal beam (10) defines an installation space (11) extending along the length direction of the longitudinal beam (10); A first support structure (20) is provided in the installation space (11) and is fixedly connected to the longitudinal beam (10); An air spring mounting structure (30) is provided below the longitudinal beam (10) and fixedly connected to the longitudinal beam (10). The air spring mounting structure (30) is used to install the air spring of the vehicle.

2. The load-bearing vehicle body according to claim 1, characterized in that, Along the height direction of the load-bearing vehicle body (1), the air spring mounting structure (30) corresponds to the first support structure (20).

3. The load-bearing vehicle body according to claim 1, characterized in that, Also includes: The first reinforcing member (40) is located outside the longitudinal beam (10) and fixed to the side wall (15) of the longitudinal beam (10), and the first reinforcing member (40) is fixedly connected to the air spring mounting structure (30).

4. The load-bearing vehicle body according to claim 1, characterized in that, The first support structure (20) is fixedly connected to at least one of the top wall (14), side wall (15) and bottom wall (16) of the longitudinal beam (10).

5. The monocoque chassis according to claim 4, characterized in that, The first support structure (20) includes a first support body (21) and a second support body (22) fixedly connected. The first support body (21) is located above the second support body (22). The first support body (21) is fixedly connected to the top wall (14) and the side wall (15). The second support body (22) is fixedly connected to the bottom wall (16).

6. The monocoque chassis according to claim 1, characterized in that, Also includes: The second support structure (50) is located within the installation space (11) and is fixedly connected to at least one of the top wall (14), side wall (15) and bottom wall (16) of the longitudinal beam (10). Along the length of the longitudinal beam (10), the second support structure is located in front of the first support structure (20), and a portion of the first support structure (20) is located between the second support structure (50) and the bottom wall (16) of the longitudinal beam (10).

7. The monocoque chassis according to claim 1, characterized in that, Also includes: The third support structure is located within the installation space (11) and is fixedly connected to at least one of the top wall (14), side wall (15) and bottom wall (16) of the longitudinal beam (10). Along the length direction of the longitudinal beam (10), the third support structure is located behind the first support structure (20).

8. The monocoque chassis according to any one of claims 1-7, characterized in that, The longitudinal beam (10) has two side walls (15), a first space is formed between the first support structure (20) and one of the side walls (15), and a second space (111) is formed between the first support structure (20) and the other side wall (15). The first space and the second space (111) are arranged along the width direction of the longitudinal beam (10).

9. The monocoque chassis according to any one of claims 1-7, characterized in that, The longitudinal beam (10) includes a first beam body (12) and a second beam body (13). Along the width direction of the longitudinal beam (10), the first beam body (12) is located on one side of the second beam body (13). The first beam body (12) and the second beam body (13) are fixedly connected to define the installation space (11). A portion of the structure of the second beam body (13) forms the bottom wall (16) of the longitudinal beam (10). A portion of the first support structure (20) is sandwiched between the first beam body (12) and the bottom wall (16).

10. A vehicle, characterized in that, Includes a monocoque chassis (1) according to any one of claims 1-9.

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