Frame cross beam assembly, frame and vehicle

Abstract

The utility model relates to a vehicle frame cross beam assembly, a vehicle frame and a vehicle, the vehicle frame cross beam assembly comprises a cross beam body, the first side and the second side of the cross beam body are each provided with at least two longitudinal beam mounting connectors, and the first side and the second side are distributed on the two opposite sides of the cross beam body in the longitudinal direction; the linear cross beams extend in the transverse direction, the at least two longitudinal beam mounting connectors located on the first side of the cross beam body are connected through the linear cross beams, and the at least two longitudinal beam mounting connectors located on the second side of the cross beam body are connected through the linear cross beams. The two longitudinal beam mounting connectors which are transversely arranged are connected through the linear cross beam, the fatigue life of the frame cross beam assembly in the transverse load period loading process can be prolonged through the linear cross beam, meanwhile, the linear length of the cross beam between the longitudinal beam mounting connectors can be reduced, and therefore the weight can be reduced.

Description

Technical Field

[0001] The present application relates to the technical field of new energy chassis frames, and in particular to a frame crossbeam assembly, a frame and a vehicle. Background Art

[0002] At present, the crossbeam of fuel trucks is a key component in the chassis structure of the vehicle. Its main function is to support the car body and bear the weight of the cargo. The design of the crossbeam ensures sufficient strength and rigidity, while also taking into account the cost and manufacturing process.

[0003] In the related art, a crossbeam assembly includes a crossbeam main frame, which is arranged between two longitudinal beams and used to connect the two longitudinal beams. A connecting portion connecting the two longitudinal beams is arranged at the end of the crossbeam main frame. At the same time, two connecting portions distributed at intervals along the lateral direction are connected by a bow-shaped crossbeam; however, the bow-shaped crossbeam is used to connect the two connecting portions, and the bow-shaped crossbeam is prone to fatigue damage during the process of being subjected to cyclic loading of lateral loads, thereby reducing the fatigue life of the crossbeam assembly.

[0004] Therefore, it is necessary to design a new frame crossbeam assembly, frame and vehicle to overcome the above problems. Summary of the invention

[0005] The present application provides a frame crossbeam assembly, a frame and a vehicle, which can solve the technical problem in the related art that the bow-shaped crossbeam is prone to fatigue damage during the process of cyclic loading of a transverse load, thereby reducing the fatigue life of the crossbeam assembly.

[0006] In a first aspect, an embodiment of the present application provides a frame crossbeam assembly, comprising: a crossbeam body, wherein the first side and the second side of the crossbeam body each have at least two longitudinal beam mounting interfaces, wherein the first side and the second side are distributed on opposite sides of the longitudinal direction of the crossbeam body; at least two straight crossbeams, wherein the straight crossbeams extend in a transverse direction, and at least two of the longitudinal beam mounting interfaces located on the first side of the crossbeam body are connected by the straight crossbeam, and at least two of the longitudinal beam mounting interfaces located on the second side of the crossbeam body are connected by the straight crossbeam.

[0007] In combination with the first aspect, in one implementation, a shock absorber mounting interface is disposed on the linear crossbeam.

[0008] In combination with the first aspect, in one implementation, the crossbeam body is X-shaped, and the longitudinal beam mounting interfaces are provided at the four ends of the crossbeam body.

[0009] In combination with the first aspect, in one embodiment, a reinforcing rib is provided at the connection between the crossbeam body and the linear crossbeam, the reinforcing rib is provided on the outer side of the crossbeam body, and the linear crossbeam is connected to the inner side of the crossbeam body.

[0010] In combination with the first aspect, in one embodiment, the reinforcing rib includes a first reinforcing plate and a second reinforcing plate arranged crosswise, and the first reinforcing plate and the second reinforcing plate are both fixed to the crossbeam body.

[0011] In combination with the first aspect, in one embodiment, a third reinforcing plate is further provided on the outer side of the crossbeam body, and the extension directions of the third reinforcing plate, the first reinforcing plate and the second reinforcing plate are all different.

[0012] In combination with the first aspect, in one implementation, the crossbeam body is provided with a rear axle auxiliary spring limit block mounting interface on an adjacent side of the longitudinal beam mounting interface.

[0013] In combination with the first aspect, in one embodiment, a rear axle leaf spring suspension bracket mounting interface is further provided on the outer side of the cross beam body, and a third reinforcing plate is provided on the cross beam body at the rear axle leaf spring suspension bracket mounting interface.

[0014] In a second aspect, an embodiment of the present application provides a vehicle frame, which includes: two frame longitudinal beams, and the two frame longitudinal beams are connected by the above-mentioned frame cross beam assembly.

[0015] In a third aspect, an embodiment of the present application provides a vehicle comprising the above-mentioned frame.

[0016] The beneficial effects brought by the technical solution provided in the embodiments of the present application include:

[0017] By connecting two transversely arranged longitudinal beam mounting interfaces through a straight crossbeam, the straight crossbeam can increase the fatigue life of the frame crossbeam assembly during the transverse load cycle loading process, and at the same time can reduce the line length of the crossbeam between the longitudinal beam mounting interfaces, thereby reducing the weight. This solves the technical problem in the related art that the bow-shaped crossbeam is prone to fatigue damage during the transverse load cycle loading process, thereby reducing the fatigue life of the crossbeam assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1A schematic structural diagram of a frame crossbeam assembly provided in an embodiment of the present application;

[0020] Figure 2 A schematic diagram of the structure of the frame crossbeam provided in the embodiment of the present application, which is generally composed of two modules;

[0021] Figure 3 A schematic diagram of the structure of a vehicle frame provided in an embodiment of the present application.

[0022] In the figure:

[0023] 1. Frame longitudinal beam;

[0024] 2. Frame crossbeam assembly; 21. Crossbeam body; 211. Fixed arm; 2111. Tilt arm; 2112. Longitudinal arm; 212. Rear axle auxiliary spring limit block installation interface; 213. Rear axle leaf spring suspension bracket installation interface; 214. Stopper;

[0025] 22. Longitudinal beam installation interface; 23. Straight cross beam; 231. Shock absorber installation interface;

[0026] 24. reinforcing ribs; 241. first reinforcing plate; 242. second reinforcing plate; 25. third reinforcing plate. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0028] In the related art, in terms of material selection for the frame crossbeam, commonly used materials include high-strength steel or other alloy materials, which can ensure that the crossbeam will not break or deform excessively when subjected to heavy loads; and the cross-sectional shape of the crossbeam is usually I-shaped, box-shaped or groove-shaped, which helps to improve the bending and torsion resistance of the crossbeam. The length and width of the crossbeam are also determined according to the load requirements and vehicle size during design; there are two ways to connect the crossbeam to the vehicle chassis: welding and bolting. The welding connection is more secure and has a simple structure, but it is more difficult to repair once a problem occurs; the bolt connection is easy to disassemble and repair, but the reliability of the connection is relatively low; in order to improve the overall performance of the crossbeam, reinforcing ribs are often set on the crossbeam or certain areas are thickened to resist local stress concentration; since the crossbeam is often exposed to harsh external environments, it is necessary to carry out appropriate anti-corrosion treatment, such as spraying anti-rust paint, galvanizing, etc., to extend its service life; when designing the crossbeam, it is also necessary to consider the manufacturing cost, assembly efficiency, and possible future maintenance and replacement convenience. The quality of the crossbeam directly affects the load-bearing capacity and driving safety of the truck, so it is an important link that cannot be ignored in the design of the truck.

[0029] The main problems with the frame crossbeams of traditional fuel trucks are as follows: traditional fuel trucks are usually made of steel, which makes the vehicle heavier and affects the vehicle's fuel efficiency and handling performance; traditional frame designs may have insufficient torsional resistance in some areas, especially in the middle part of the frame, which may cause the frame to deform when subjected to torque, affecting the stability and safety of the vehicle; since the frame will be subjected to repeated loads and vibrations during long-term use, traditional frame designs may not be able to effectively disperse these loads, increasing the risk of fatigue damage and shortening the service life of the vehicle; although traditional fuel truck crossbeams have been widely used in history, due to their limitations in weight, torsional resistance, fatigue damage risk, etc., they can no longer meet the requirements of new energy pure electric commercial vehicles for high torsional stiffness, lightweight, and high reliability of the frame.

[0030] The embodiments of the present application provide a frame crossbeam assembly, a frame and a vehicle, which can solve the technical problem in the related art that the bow-shaped crossbeam is prone to fatigue damage during the process of cyclic loading of lateral loads, thereby reducing the fatigue life of the crossbeam assembly.

[0031] See also Figure 1As shown, a frame crossbeam assembly 2 provided in an embodiment of the present application may include: a crossbeam body 21, wherein the first side and the second side of the crossbeam body 21 each have at least two longitudinal beam mounting interfaces 22, wherein the first side and the second side are distributed on opposite sides of the longitudinal direction of the crossbeam body 21; at least two straight crossbeams 23, wherein the straight crossbeams 23 extend in the transverse direction, and at least two of the longitudinal beam mounting interfaces 22 located on the first side of the crossbeam body 21 are connected by the straight crossbeam 23, and at least two of the longitudinal beam mounting interfaces 22 located on the second side of the crossbeam body 21 are connected by the straight crossbeam 23.

[0032] The frame crossbeam assembly 2 in this embodiment is used to be installed between the left and right frame longitudinal beams 1 to connect the two frame longitudinal beams 1 in the transverse direction. The first side here can be the front side of the crossbeam body 21, and the second side corresponds to the rear side of the crossbeam body 21. The front side of the crossbeam body 21 can be provided with two longitudinal beam mounting interfaces 22, or multiple longitudinal beam mounting interfaces 22. This embodiment is described by taking the example that the front side of the crossbeam body 21 is provided with two longitudinal beam mounting interfaces 22, and the rear side is also provided with two longitudinal beam mounting interfaces 22. The two longitudinal beam mounting interfaces 22 on the front side of the crossbeam body 21 are transversely connected by a straight crossbeam 23, and the two longitudinal beam mounting interfaces 22 on the rear side of the crossbeam body 21 are transversely connected by a straight crossbeam 23; one of the longitudinal beam mounting interfaces 22 on the front side and one of the longitudinal beam mounting interfaces 22 on the rear side are used to be installed to the frame longitudinal beam 1 on the left side, and the other longitudinal beam mounting interface 22 on the front side and the other longitudinal beam mounting interface 22 on the rear side are used to be installed to the frame longitudinal beam 1 on the right side. The linear cross beam 23 in this embodiment extends in a straight line as a whole and is perpendicular to the frame longitudinal beam 1 .

[0033] In the related art, a bow-shaped crossbeam is used. When the bow-shaped crossbeam is subjected to lateral periodic loading, the left and right ends of the bow-shaped crossbeam are forced to squeeze in the direction of approaching each other, and the lateral load is not easy to be transmitted in the lateral direction through the bow-shaped crossbeam, resulting in the bow-shaped crossbeam being easily bent and broken from the arched position after being subjected to lateral periodic loading. In this embodiment, two longitudinal beam mounting interfaces 22 arranged in the lateral direction are connected by a straight crossbeam 23. When subjected to lateral load periodic loading, the lateral load acting on the ends of the straight crossbeam 23 can be transmitted in the lateral straight line through the straight crossbeam 23. The straight crossbeam 23 is not easy to be damaged during the lateral load periodic loading process, which can improve the fatigue life of the frame crossbeam assembly 2 during the lateral load periodic loading process. At the same time, when the distance between the two frame longitudinal beams 1 is equal, the linear length of the straight crossbeam 23 is shorter than that of the bow-shaped crossbeam, so the linear length of the crossbeam between the longitudinal beam mounting interfaces 22 can be reduced, thereby reducing the weight, solving the technical problem that the bow-shaped crossbeam is easily fatigued and damaged during the lateral load periodic loading process in the related art, which reduces the fatigue life of the crossbeam assembly.

[0034] Furthermore, in one embodiment, a shock absorber mounting interface 231 is arranged on the linear crossbeam 23. In this embodiment, two shock absorber mounting interfaces 231 are arranged on each linear crossbeam 23, and the two shock absorber mounting interfaces 231 are arranged at intervals, and one shock absorber mounting interface 231 is on the left, and the other shock absorber mounting interface 231 is on the right. In this embodiment, by arranging the shock absorber mounting interface 231 on the linear crossbeam 23, the shock absorber can be directly mounted to the shock absorber mounting interface 231, and there is no need to separately arrange a shock absorber mounting bracket. The frame crossbeam assembly 2 integrates the shock absorber mounting bracket, which can improve the integration of vehicle parts.

[0035] See also Figure 1 As shown, in one embodiment, the cross beam body 21 is in an X-shape, and the longitudinal beam mounting interfaces 22 are provided at the four ends of the cross beam body 21. Two fixed arms 211 are extended forward from the middle position of the cross beam body 21, and two fixed arms 211 are also extended backward. The two fixed arms 211 on the front side are in a V-shape, and the two fixed arms 211 on the rear side are also in a V-shape, so that the four fixed arms 211 are connected to form an X-shaped cross beam body 21. Each fixed arm 211 includes an inclined arm 2111 and a longitudinal arm 2112 connected to each other. The longitudinal arm 2112 extends in the longitudinal direction, and each longitudinal arm 2112 is parallel to each other. The inclined arm 2111 extends obliquely relative to the longitudinal arm 2112, and the two inclined arms 2111 on the front side extend obliquely in different directions to form a V-shape, and the same is true for the rear side. A longitudinal beam mounting interface 22 is provided on each longitudinal arm 2112. In this embodiment, the cross beam body 21 is configured to be X-shaped, and the four longitudinal beam mounting interfaces 22 are distributed at the four ends of the X-shape, so that the entire frame cross beam assembly 2 is hourglass-shaped. The X-shaped cross beam body 21 is more likely to produce elastic deformation when subjected to force. When the four longitudinal beam mounting interfaces 22 are subjected to force in the Z direction (i.e., the vertical direction), a certain elastic displacement can occur, thereby ensuring the flexibility requirements of the frame cross beam assembly 2. This elastic deformation feature is very important for absorbing impact force, reducing vibration, etc.

[0036] Of course, in other embodiments, the cross beam body 21 may also be in other shapes, not limited to the X-shape.

[0037] See also Figure 2As shown, in some optional embodiments, a reinforcing rib 24 is provided at the connection between the cross beam body 21 and the linear cross beam 23, and the reinforcing rib 24 is provided on the outside of the cross beam body 21, and the linear cross beam 23 is connected to the inside of the cross beam body 21. In this embodiment, the linear cross beam 23 is connected to the vertical arm in the transverse direction, and the cross section of the vertical arm is C-shaped, and the reinforcing rib 24 is provided in the cavity of the C-shaped vertical arm. Since the linear cross beam 23 will transmit the transverse load, and the strength of the C-shaped vertical arm is relatively weak, it is easy to deform when subjected to the transverse load. By adding the reinforcing rib 24 at the position corresponding to the linear cross beam 23 in the cavity of the C-shaped vertical arm, the strength of the vertical arm can be enhanced, and the probability of deformation of the vertical arm can be reduced. The reinforcing rib 24 helps to disperse the force and prevent the local stress concentration from causing the C-shaped vertical arm to crack and fail; the reinforcing rib 24 in this embodiment can not only be strengthened for the transverse stress, but also for the longitudinal stress.

[0038] Further, see Figure 2 As shown, in one embodiment, the reinforcing rib 24 may include a first reinforcing plate 241 and a second reinforcing plate 242 arranged crosswise, and the first reinforcing plate 241 and the second reinforcing plate 242 are both fixed to the crossbeam body 21. In this embodiment, the first reinforcing plate 241 and the second reinforcing plate 242 may be perpendicular to each other, and the first reinforcing plate 241 and the second reinforcing plate 242 are both perpendicular to the vertical arm; in this embodiment, the first reinforcing plate 241 and the second reinforcing plate 242 arranged crosswise are used to reinforce the vertical arm, which can enhance the anti-deformation ability of the ventral surface of the connection part between the vertical arm and the linear crossbeam 23, and avoid stress concentration caused by inconsistent force on the local ventral surface.

[0039] See also Figure 2 As shown, in one embodiment, a third reinforcing plate 25 is further provided on the outer side of the cross beam body 21, and the extension directions of the third reinforcing plate 25, the first reinforcing plate 241 and the second reinforcing plate 242 are all different. In this embodiment, the third reinforcing plate 25 is in a vertical state and is also perpendicular to the fixed arm 211. In this embodiment, the cross section of the entire fixed arm 211 is C-shaped. The first reinforcing plate 241 and the second reinforcing plate 242 are arranged at the connection between the fixed arm 211 and the linear cross beam 23. The third reinforcing plate 25 is arranged at other positions of the fixed arm 211 and is located in the cavity of the C-shaped fixed arm 211. The vertical third reinforcing plate 25 can be optimized for transverse stress, and the cross-arranged first reinforcing plate 241 and the second reinforcing plate 242 can be reinforced for longitudinal stress. This multi-angle and multi-directional reinforcing plate arrangement can enable the frame cross beam assembly 2 to maintain its stability under complex stress environments.

[0040] Further, see Figure 2As shown, in one embodiment, the cross beam body 21 is provided with a rear axle auxiliary spring stopper installation interface 212 on the adjacent side of the longitudinal beam installation interface 22. Wherein, each fixed arm 211 may be provided with a rear axle auxiliary spring stopper installation interface 212, so that the frame cross beam assembly 2 is integrated with the installation interface of the rear axle auxiliary spring stopper, and there is no need to separately provide the installation interface of the rear axle auxiliary spring stopper on the longitudinal beam.

[0041] See also Figure 2 As shown, in some optional embodiments, a rear axle leaf spring suspension bracket mounting interface 213 is further provided on the outer side of the cross beam body 21, and a third reinforcing plate 25 is provided on the cross beam body 21 at the rear axle leaf spring suspension bracket mounting interface 213. In this embodiment, the rear axle leaf spring suspension bracket mounting interface 213 can be used to install the rear axle leaf spring suspension bracket, so that the frame cross beam assembly 2 integrates the mounting interface of the rear axle leaf spring suspension bracket; at the same time, the third reinforcing plate 25 is added at the position of the rear axle leaf spring suspension bracket mounting interface 213 to enhance the structural strength of the location and resist deformation of the cross beam body 21 at the location.

[0042] In this embodiment, the frame crossbeam assembly 2 is preferably formed by integrated casting of aluminum alloy material; and the frame crossbeam assembly 2 can be designed in a segmented manner. In this embodiment, the entire frame crossbeam assembly 2 is divided into two modules that are centrally symmetrical. Each module has two fixed arms 211 and a linear crossbeam 23. One end of the two fixed arms 211 is connected to each other and is V-shaped, and the other end of the two fixed arms 211 is connected by a linear crossbeam 23. The structures of the two modules in the frame crossbeam assembly 2 are exactly the same, and a modular design can be adopted. The mold is universal, which can greatly reduce the manufacturing cost. In addition, a single module adopts an integrated casting molding process, and the lightweight effect is ideal; the frame crossbeam assembly 2 with a segmented design can optimize and improve the casting processability, storage and transportation, and assembly convenience, and can significantly improve the torsional strength of the vehicle. The holes and reinforcing ribs 24 distributed in the frame crossbeam assembly 2 can meet the requirements of different vehicle platforms for load, power battery installation, and suspension system installation. Each module of the frame crossbeam assembly 2 adopts a sand casting process, which is mature and controllable, with a high yield rate, and all machined areas of the frame crossbeam assembly 2 have no difficult operating points, and the processing accuracy is easy to ensure. The frame crossbeam assembly 2 in this embodiment can be hoisted online, which saves more assembly time compared to the original stamped sheet metal crossbeam installation method of a large number of "rivets + bolts"; the cast frame crossbeam assembly 2 has a high outer width accuracy and can well ensure the outer width of the frame (stamped crossbeams are difficult to ensure the outer width accuracy of the frame).

[0043] In this embodiment, the two modules of the entire frame crossbeam assembly 2 are connected by a "cross" stop 214, which not only meets the strength connection but also enhances the torque transmission capacity. Figure 1 and Figure 2As shown, a stop 214 is provided at the position where the two fixed arms 211 are cross-connected to each other, and each module of the entire frame crossbeam assembly 2 is provided with a stop 214. The stop 214 on the two modules complement each other. The two modules are connected to each other by the stop 214 and can be fixed by bolts.

[0044] The frame crossbeam assembly 2 in this embodiment can be applied to the design and manufacture of various light and heavy-duty pure electric trucks. Its modular design facilitates factory assembly and production, improves efficiency, and facilitates future vehicle maintenance. In addition, the use of aluminum alloy materials not only meets the needs of lightweight design, but also improves the environmental performance of the vehicle, which is in line with the future development trend of the automotive industry.

[0045] It should be noted that in actual production, the design and material selection of the frame crossbeam assembly 2 may vary depending on the specific vehicle model, configuration, cost, etc. Therefore, in actual application, adjustments need to be made according to specific circumstances.

[0046] In order to solve the stress concentration problem of the current stamped beam structure, improve the reliability of the beam structure, and achieve a certain lightweight effect, this application uses a topology optimization method to iteratively calculate a new and more reasonable frame beam assembly 2 based on the existing beam working condition boundary. The resulting frame beam assembly 2 can not only ensure the lightweight effect, but also solve the structural defects of the current stamped beam, which improves the economy and reliability of the whole vehicle to a certain extent and creates certain customer value.

[0047] The hourglass-shaped frame beam assembly 2 in the present application is obtained by topological calculation using software after applying composite working conditions such as bending, forward torsion, forward torsion + turning, turning, braking, front and rear torsion, lateral pushing, and shock absorber tension and compression to the frame based on the design boundary after optimization of the composite suspension frame assembly.

[0048] See also Figure 3 As shown, the embodiment of the present application further provides a vehicle frame, which may include: two frame longitudinal beams 1, and the two frame longitudinal beams 1 are connected by the above-mentioned frame cross beam assembly 2. The frame cross beam assembly 2 in this embodiment can adopt the frame cross beam assembly 2 provided in any of the above-mentioned embodiments, and realize the corresponding functions.

[0049] Furthermore, in one embodiment, the frame crossbeam assembly 2 may include: a crossbeam body 21, wherein the first side and the second side of the crossbeam body 21 each have at least two longitudinal beam mounting interfaces 22, wherein the first side and the second side are distributed on opposite sides of the longitudinal direction of the crossbeam body 21; at least two straight crossbeams 23, wherein the straight crossbeams 23 extend in the transverse direction, and at least two of the longitudinal beam mounting interfaces 22 located on the first side of the crossbeam body 21 are connected by the straight crossbeam 23, and at least two of the longitudinal beam mounting interfaces 22 located on the second side of the crossbeam body 21 are connected by the straight crossbeam 23.

[0050] Furthermore, in one embodiment, a shock absorber installation interface 231 is disposed on the linear crossbeam 23 .

[0051] Furthermore, in one embodiment, the cross beam body 21 is X-shaped, and the longitudinal beam mounting interfaces 22 are disposed at four ends of the cross beam body 21 .

[0052] Furthermore, in one embodiment, a reinforcing rib 24 is provided at the connection between the cross beam body 21 and the linear cross beam 23 . The reinforcing rib 24 is provided on the outer side of the cross beam body 21 , and the linear cross beam 23 is connected to the inner side of the cross beam body 21 .

[0053] Furthermore, in one embodiment, the reinforcing rib 24 includes a first reinforcing plate 241 and a second reinforcing plate 242 that are cross-arranged, and the first reinforcing plate 241 and the second reinforcing plate 242 are both fixed to the crossbeam body 21 .

[0054] Furthermore, in one embodiment, a third reinforcing plate 25 is further disposed on the outer side of the cross beam body 21 , and the extension directions of the third reinforcing plate 25 , the first reinforcing plate 241 and the second reinforcing plate 242 are all different.

[0055] Furthermore, in one embodiment, the cross beam body 21 is provided with a rear axle auxiliary spring limit block installation interface 212 on the adjacent side of the longitudinal beam installation interface 22 .

[0056] Furthermore, in one embodiment, a rear axle leaf spring suspension bracket mounting interface 213 is further provided on the outer side of the cross beam body 21 , and a third reinforcing plate 25 is provided on the cross beam body 21 at the rear axle leaf spring suspension bracket mounting interface 213 .

[0057] An embodiment of the present application also provides a vehicle, which includes the above-mentioned frame.

[0058] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0059] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0060] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A frame crossbeam assembly, characterized in that: It includes: A crossbeam body (21), wherein a first side and a second side of the crossbeam body (21) each have at least two longitudinal beam mounting interfaces (22), wherein the first side and the second side are distributed on opposite sides of the crossbeam body (21) in the longitudinal direction; At least two straight cross beams (23), the straight cross beams (23) extending in a transverse direction, and at least two longitudinal beam mounting interfaces (22) located on a first side of the cross beam body (21) are connected via the straight cross beam (23), and at least two longitudinal beam mounting interfaces (22) located on a second side of the cross beam body (21) are connected via the straight cross beam (23); A reinforcing rib (24) is provided at the connection between the crossbeam body (21) and the linear crossbeam (23); the reinforcing rib (24) is provided on the outside of the crossbeam body (21), and the linear crossbeam (23) is connected to the inside of the crossbeam body (21).

2. The frame cross member assembly according to claim 1, characterized in that: A shock absorber installation interface (231) is arranged on the straight crossbeam (23).

3. The frame cross member assembly according to claim 1, characterized in that: The crossbeam body (21) is X-shaped, and the longitudinal beam mounting interfaces (22) are arranged at the four ends of the crossbeam body (21).

4. The frame cross member assembly according to claim 1, characterized in that: The reinforcing rib (24) comprises a first reinforcing plate (241) and a second reinforcing plate (242) which are arranged crosswise, and the first reinforcing plate (241) and the second reinforcing plate (242) are both fixed to the crossbeam body (21).

5. The frame cross member assembly according to claim 4, characterized in that: A third reinforcing plate (25) is also provided on the outer side of the crossbeam body (21); the third reinforcing plate (25), the first reinforcing plate (241) and the second reinforcing plate (242) all have different extension directions.

6. The frame cross member assembly according to claim 1, characterized in that: The crossbeam body (21) is provided with a rear axle auxiliary spring limit block installation interface (212) on the adjacent side of the longitudinal beam installation interface (22).

7. The frame cross member assembly according to claim 1, characterized in that: A rear axle leaf spring suspension bracket mounting interface (213) is also provided on the outer side of the cross beam body (21), and a third reinforcing plate (25) is provided on the cross beam body (21) at the rear axle leaf spring suspension bracket mounting interface (213).

8. A vehicle frame, characterized in that: It includes: Two frame longitudinal beams (1), the two frame longitudinal beams (1) are connected via the frame cross beam assembly according to claim 1.

9. A vehicle, characterized in that: It comprises the frame as claimed in claim 8.

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