Frame support structure and vehicle having the same

Abstract

The application provides a vehicle frame support structure and a vehicle with the same, and relates to the technical field of vehicles.The vehicle frame support structure comprises a cross beam body, at least part of the cross beam body is a hollow structure; a plurality of mounting supports are connected with the cross beam body, the mounting supports are used for being connected with at least one of a longitudinal beam, a leaf spring and a cab rear suspension, and the mounting supports are integrally formed with the cross beam body. According to the technical scheme of the application, the cross beam body is arranged as a hollow structure, the weight of the support structure can be greatly reduced, the light weight of the support structure is realized, a plurality of mounting supports are integrated on the cross beam body and connected with each component such as the longitudinal beam, the leaf spring, the cab rear suspension and the like, the plurality of components can be integrated, the assembly precision and efficiency can be improved in the assembly process of the components, the overall structural strength can be optimized, and the space layout of the vehicle chassis and the rear part of the cab is more reasonable and flexible.

Description

Technical Field

[0001] This invention relates to the field of vehicle technology, and more specifically, to a vehicle frame support structure and a vehicle having the same. Background Technology

[0002] As a crucial load-bearing component, vehicle brackets face the important task of ensuring structural strength and safety performance while reducing weight. Traditional vehicle bracket designs often present a trade-off between weight and structural strength. Ensuring strength typically requires increasing bracket thickness and material, which in turn increases weight. Lightweighting, however, is a key objective in current vehicle design.

[0003] Existing technologies typically employ a modular structure design where each component is designed and manufactured independently, and then assembled during vehicle assembly using welding or bolting. This involves using lightweight materials (such as aluminum alloys and high-strength steel) to reduce component weight, and adding additional reinforcing ribs or plates to improve the rigidity and strength of localized areas. However, these solutions suffer from drawbacks such as high weight, low assembly precision, low efficiency, high cost, and low space utilization.

[0004] There is currently no effective solution to the aforementioned technical problems. Summary of the Invention

[0005] The main objective of this invention is to provide a vehicle frame support structure and a vehicle having the same, so as to solve the problems of large weight and low integration of vehicle frames in the prior art.

[0006] To achieve the above objectives, according to one aspect of the present invention, a vehicle frame support structure is provided, comprising: a crossbeam body, at least a portion of which is a hollow structure; and multiple mounting brackets connected to the crossbeam body, wherein the mounting brackets are used for connection with at least one of a longitudinal beam, a leaf spring, and a rear suspension of the cab, and the mounting brackets are integrally formed with the crossbeam body.

[0007] Furthermore, the hollow structure includes a hollow space formed by the indentation from the bottom side to the top side of the main body of the beam, and the hollow space extends along the length direction of the main body of the beam.

[0008] Furthermore, the hollow structure also includes multiple hollow holes on the side wall of the hollow space, with the multiple hollow holes spaced apart along the length of the main beam.

[0009] Furthermore, a reinforcing section is provided between adjacent perforated holes. The reinforcing section is located within the perforated space and is connected to the side wall of the perforated space.

[0010] Furthermore, there are two mounting brackets, which are respectively connected to both ends of the main body of the crossbeam. The mounting brackets are all located on the side of the opening end of the hollow space. The mounting bracket includes a connecting section, a longitudinal beam mounting section, and a leaf spring mounting section arranged sequentially in the direction away from the main body of the crossbeam. The longitudinal beam mounting section has at least one mounting hole, through which the longitudinal beam mounting section is connected to the longitudinal beam. The leaf spring mounting section is located on the side of the longitudinal beam mounting section away from the main body of the crossbeam, and has a leaf spring through hole for fixing the leaf spring. When the longitudinal beam mounting section is connected to the longitudinal beam, the inner end face of the longitudinal beam mounting section is flush with the outer end face of the longitudinal beam.

[0011] Furthermore, the mounting bracket also includes a rear cab mounting section, which is connected to the longitudinal beam mounting section. The rear cab mounting section is located on the side of the longitudinal beam mounting section away from the other mounting bracket. The rear cab mounting section has at least one connecting hole for connecting the rear cab mount.

[0012] Furthermore, a clearance space is formed between the main body of the crossbeam and the two mounting brackets, which is used to avoid the longitudinal beam.

[0013] Furthermore, the frame support structure also includes an air compressor mounting section, which is located on the outer wall of the main body of the crossbeam. The air compressor mounting section is located on the side opposite to the opening end of the hollow space and is used to install and fix the air compressor.

[0014] Furthermore, the first end of the connecting section is connected to the longitudinal beam installation section, and the first end of the connecting section and the longitudinal beam installation section have an angle α. The second end of the connecting section is connected to the crossbeam body, and the second end of the connecting section and the crossbeam body have an angle β, where α+β=270°.

[0015] Furthermore, multiple limiting bosses are provided on the outer wall of the main body of the crossbeam. The multiple limiting bosses are arranged at intervals along the length direction of the main body of the crossbeam. Limiting holes are opened on the limiting bosses. The limiting holes are used to fix the pipeline harness. The central axis of the limiting hole is parallel to the central axis of the leaf spring through hole.

[0016] Furthermore, multiple weight-reducing holes are provided on both the longitudinal beam installation section and the connecting section.

[0017] Furthermore, the distance between the central axis of the leaf spring through hole and the first end of the connecting section is H1, the distance between the central axis of the leaf spring through hole and the main body of the crossbeam is H2, the length of the main body of the crossbeam is L1 along the length extension direction of the main body of the crossbeam, and the distance between the connecting sections of the two longitudinal beams is L2; ​​wherein, 700 / 940≤L1 / L2≤850 / 940, 350 / 450≤H1 / H2≤350 / 400.

[0018] According to another aspect of the present invention, a vehicle is provided having a frame support structure, wherein the frame support structure is the aforementioned frame support structure.

[0019] By applying the technical solution of this invention, the main body of the crossbeam is set as a hollow structure, which can greatly reduce the weight of the support structure and achieve lightweighting of the support structure. Multiple mounting brackets are integrated on the main body of the crossbeam and connected to various components such as longitudinal beams, leaf springs, and rear suspension of the cab, thereby integrating multiple components into one. During the assembly process of each component, the assembly accuracy and efficiency can be improved, and the overall structural strength can be optimized, making the spatial layout of the vehicle chassis and the rear of the cab more reasonable and flexible. Attached Figure Description

[0020] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0021] Figure 1 A schematic diagram of a first embodiment of the vehicle frame support assembly according to the present invention is shown;

[0022] Figure 2 A schematic diagram of a second embodiment of the vehicle frame support assembly according to the present invention is shown;

[0023] Figure 3 A structural schematic diagram of a third embodiment of the vehicle frame support assembly according to the present invention is shown;

[0024] Figure 4 A structural schematic diagram of a fourth embodiment of the vehicle frame support assembly according to the present invention is shown;

[0025] Figure 5 A structural schematic diagram of a fifth embodiment of the vehicle frame support assembly according to the present invention is shown.

[0026] The above figures include the following reference numerals:

[0027] 10. Main body of the crossbeam;

[0028] 101. Hollowed-out holes;

[0029] 11. Air compressor installation section;

[0030] 20. Install the bracket;

[0031] 200. Clearance space;

[0032] 21. Longitudinal beam installation section;

[0033] 211. Mounting holes;

[0034] 22. Leaf spring mounting section;

[0035] 221. Leaf spring through hole;

[0036] 23. Rear suspension mounting section of the cab;

[0037] 231. Connecting hole;

[0038] 24. Connecting section;

[0039] 30. Strengthened Section;

[0040] 40. Weight reduction hole;

[0041] 50. Reinforcing components;

[0042] 60. Limiting boss;

[0043] 61. Limiting hole. Detailed Implementation

[0044] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0045] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0046] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0047] Exemplary embodiments according to this application will now be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein. It should be understood that these embodiments are provided so that the disclosure of this application is thorough and complete, and that the concept of these exemplary embodiments is fully conveyed to those skilled in the art. In the drawings, for clarity, the thickness of layers and regions may be exaggerated, and the same reference numerals are used to denote the same devices, and therefore their description will be omitted.

[0048] Combination Figures 1 to 5 As shown, according to a specific embodiment of this application, a vehicle frame support structure is provided.

[0049] Specifically, such as Figure 1 As shown, the frame support structure includes a crossbeam body 10 and a mounting bracket 20. At least part of the crossbeam body 10 is a hollow structure. There are multiple mounting brackets 20. The mounting brackets 20 are connected to the crossbeam body 10. The mounting brackets 20 are used to connect with at least one of the longitudinal beam, leaf spring, and rear suspension of the cab. The mounting brackets 20 are integrally formed with the crossbeam body 10.

[0050] By applying the technical solution of this embodiment, the main body 10 of the crossbeam is set as a hollow structure, which can greatly reduce the weight of the support structure and achieve lightweighting of the support structure. Multiple mounting brackets 20 are integrated on the main body 10 of the crossbeam, which are connected to the longitudinal beam, leaf spring, rear suspension of the cab and other components respectively. This can realize the integration of multiple components into one, improve the assembly accuracy and efficiency during the assembly of each component, and optimize the overall structural strength, making the spatial layout of the vehicle chassis and the rear of the cab more reasonable and flexible.

[0051] Specifically, such as Figure 2 As shown, the hollow structure includes a hollow space 100 formed by a recess from the bottom side of the crossbeam body 10 to the top side of the crossbeam body 10, and the hollow space 100 extends along the length direction of the crossbeam body 10. The formation of the hollow space 100 reduces the material used in the crossbeam body 10, thereby reducing the weight of the parts and helping to improve fuel economy.

[0052] It should be noted that the top side of the crossbeam body 10 needs to bear the load above it. The crossbeam body 10 can be set on the lower side of the cab, cargo box, etc. The bottom side of the crossbeam body 10 is in direct contact with the lower structure of the vehicle or connected by a connector. The bottom side of the crossbeam body 10 is recessed towards the top side to form a hollow space 100. The longitudinally extending hollow space 100 can achieve weight reduction while ensuring the support of the crossbeam body 10 for the top side components.

[0053] In this embodiment, the hollow structure can improve airflow around the main body 10 of the crossbeam, reduce air resistance, and further improve fuel efficiency and driving stability. Since the bracket structure is connected to multiple components, the hollow structure can provide better airflow and help dissipate heat on some components that require heat dissipation.

[0054] Furthermore, such as Figure 1 , Figure 2 As shown, the hollow structure also includes multiple hollow holes 101 formed on the side wall of the hollow space 100, with the multiple hollow holes 101 spaced apart along the length of the main beam 10. While maintaining the structural integrity and strength of the main beam 10, the hollow holes 101 can remove more unnecessary materials, achieving further weight reduction. At the same time, the shape and structure of the hollow holes 101 can be set as needed to have a reinforcing effect, improving the overall torsional resistance.

[0055] Specifically, such as Figure 2 As shown, a reinforcing section 30 is provided between adjacent hollow holes 101. The reinforcing section 30 is located within the hollow space 100 and is connected to the side wall of the hollow space 100. By connecting to the side wall of the hollow space 100, the reinforcing section 30 significantly improves the local stiffness of the main beam 10, helping to improve the bending and torsional resistance of the main beam 10, enhancing its ability to resist external loads, reducing deformation, and extending its service life. By providing the reinforcing section 30 between adjacent hollow holes 101, the hollow structure of the main beam 10 not only achieves the goal of lightweight design but also ensures the reliability and durability of the structure.

[0056] In one embodiment of this application, the reinforcing segment 30 extends along the inner wall of the hollow space 100 to the bottom side of the hollow space 100 and forms a recessed notch in the direction of the opening of the hollow space 100 to reinforce the entire hollow space 100.

[0057] Furthermore, such as Figures 1-3As shown, there are two mounting brackets 20, which are respectively connected to both ends of the crossbeam body 10. Each mounting bracket 20 is located on the side of the opening end of the hollow space 100. Each mounting bracket 20 includes a connecting section 24, a longitudinal beam mounting section 21, and a leaf spring mounting section 22 arranged sequentially along the direction away from the crossbeam body 10. The longitudinal beam mounting section 21 has at least one mounting hole 211, through which it connects to the longitudinal beam. The leaf spring mounting section 22 is located on the side of the longitudinal beam mounting section 21 away from the crossbeam body 10, and has a leaf spring through hole 221 for fixing the leaf spring. When the longitudinal beam mounting section 21 is connected to the longitudinal beam, its inner end face is flush with the outer end face of the longitudinal beam. The two mounting brackets 20 connected to both ends of the crossbeam body 10 effectively distribute the load and improve the stability of the structure. Meanwhile, the mounting bracket 20 is positioned on the side of the opening of the hollow space 100, which not only utilizes existing space but also avoids interference with other vehicle components, optimizing the vehicle's internal layout. The connecting section 24, as a transition section, ensures a smooth transition and secure connection between the mounting bracket 20 and the crossbeam body 10. It helps to distribute stress and reduce stress concentration that may occur due to direct connection. At least one mounting hole 211 on the longitudinal beam mounting section 21 is used for fixed connection with the vehicle's longitudinal beam. Ensuring that the inner end face of the longitudinal beam mounting section 21 is flush with the outer end face of the longitudinal beam not only helps to guarantee connection accuracy but also reduces air resistance and improves the vehicle's aerodynamic performance. The leaf spring mounting section 22 is located on the side of the longitudinal beam mounting section 21 away from the crossbeam body 10 and is used to fix the vehicle's leaf spring system. The design of the leaf spring through hole 221 ensures that the leaf spring can pass through stably and be fixed in the appropriate position, providing the necessary suspension and shock absorption functions for the vehicle. This design integrates different functional components (such as longitudinal beam connections and leaf spring fixation) into a single mounting bracket 20, reducing the number of parts, simplifying the vehicle assembly process, improving assembly efficiency, and also reducing manufacturing costs.

[0058] It should be noted that the inner end face of the longitudinal beam mounting section 21 is the end face closest to the main body 10 of the crossbeam, and the outer end face of the longitudinal beam is the end face closest to the mounting bracket 20. When the longitudinal beam mounting section 21 is connected to the longitudinal beam, the inner end face of the longitudinal beam mounting section 21 is flush with the outer end face of the longitudinal beam, which helps to maintain the continuity and integrity of the vehicle body lines and improve the vehicle's aesthetics. In addition, this design can also avoid leaving obvious assembly marks on the side of the vehicle, maintaining design consistency and a high-end feel. Moreover, in the event of a collision, the flush connection surface can reduce potential damage points, which helps to improve the vehicle's passive safety.

[0059] Specifically, the mounting bracket 20 also includes a rear cab suspension mounting section 23, which is connected to the longitudinal beam mounting section 21. The rear cab suspension mounting section 23 is located on the side of the longitudinal beam mounting section 21 away from the other mounting bracket 20. At least one connecting hole 231 is provided on the rear cab suspension mounting section 23 for connecting to the rear cab suspension. Integrating the rear cab suspension mounting section 23 onto the mounting bracket 20 reduces the number of parts on the vehicle's underside, simplifies the assembly process, improves production efficiency, and also reduces vehicle manufacturing costs. This achieves the goals of lightweighting and structural optimization, while also ensuring the vehicle's stability, safety, and comfort during operation.

[0060] Furthermore, such as Figure 3 As shown, a clearance space 200 is formed between the crossbeam body 10 and the two mounting brackets 20, which is used to avoid interference with the longitudinal beam. The clearance space 200 ensures that the longitudinal beam will not interfere with the crossbeam body 10 or the mounting brackets 20 during installation. During vehicle assembly, the longitudinal beam needs to be precisely installed along the length of the vehicle to bear the main load and transmit power. The existence of the clearance space 200 ensures smooth assembly of the longitudinal beam, avoids complex adjustments during installation, and improves assembly efficiency. The clearance space 200 also facilitates vehicle maintenance and repair. The clearance space 200 provides sufficient space for the inspection and repair of the longitudinal beam and other important components, reducing the disassembly and reassembly of parts during maintenance, and lowering maintenance costs and time.

[0061] Furthermore, such as Figure 1 As shown, the frame support structure also includes an air compressor mounting section 11, which is disposed on the outer wall of the crossbeam body 10. The air compressor mounting section 11 is located on the side opposite to the opening end of the hollow space 100 and is used to install and fix the air compressor. Due to the vibration and heat generated by the air compressor during operation, placing the air compressor mounting section 11 on the outer wall of the crossbeam body 10, and on the side opposite to the opening end of the hollow space 100, i.e., the top side of the crossbeam body 10, avoids affecting other sensitive components inside the vehicle. At the same time, the outer wall of the crossbeam body 10 provides sufficient installation space and support, which not only solves the air compressor installation problem, but also further optimizes the vehicle's structural design, achieving a dual improvement in vehicle performance and manufacturing cost.

[0062] Furthermore, such as Figure 3As shown, the first end of the connecting segment 24 is connected to the longitudinal beam mounting segment 21, and the first end of the connecting segment 24 and the longitudinal beam mounting segment 21 form an angle α. The second end of the connecting segment 24 is connected to the crossbeam body 10, and the second end of the connecting segment 24 and the crossbeam body 10 form an angle β, where α + β = 270°. This arrangement can effectively distribute and transfer loads according to the different dimensions of the crossbeam body 10, the longitudinal beam mounting segment 21, and the connecting segment 24, so that the connecting segment 24 forms a more stable triangular structure between the longitudinal beam and the crossbeam body 10, improving the structural rigidity and load-bearing capacity of the entire frame support, effectively reducing structural deformation and stress concentration, thereby enhancing the stability and safety of the vehicle. At the same time, it also optimizes the spatial layout of the vehicle bottom. The connecting segment 24 is arranged in a way that can effectively avoid interference with other vehicle components, such as avoiding interference with key components such as drive shafts, braking systems, or wiring harnesses, providing convenience for the integration of multiple vehicle systems.

[0063] Furthermore, such as Figure 4 , Figure 5 As shown, multiple limiting bosses 60 are provided on the outer wall of the crossbeam body 10. These bosses are spaced apart along the length of the crossbeam body 10, and each boss has a limiting hole 61 for fixing the wiring harness. The central axis of the limiting hole 61 is parallel to the central axis of the leaf spring through hole 221. The limiting bosses 60 not only provide a stable fixing point for the wiring harness, preventing loosening or damage during vehicle operation, but also offer some protection against direct external impacts or wear. The spaced arrangement of the limiting bosses 60 along the length of the crossbeam body 10 ensures more uniform fixing of the wiring harness, improving its stability. Furthermore, the spaced arrangement accommodates the natural bending and spatial layout of the wiring harness, preventing excessive stretching or compression and extending its service life. The central axis of the limiting hole 61 is set parallel to the central axis of the leaf spring through hole 221. This design ensures that the fixing direction of the wiring harness is consistent with the vehicle's direction of travel, which helps to reduce wind resistance and vibration experienced by the wiring harness during vehicle travel. It also facilitates the coordinated layout of the wiring harness with other vehicle components (such as leaf springs) and avoids unnecessary interference between components.

[0064] Furthermore, multiple weight-reduction holes 40 are provided on both the longitudinal beam mounting section 21 and the connecting section 24. By providing weight-reduction holes 40 on the longitudinal beam mounting section 21 and the connecting section 24, the total weight of the mounting bracket 20 can be significantly reduced. By providing weight-reduction holes in non-load-bearing critical areas, materials can be used effectively, avoiding unnecessary weight.

[0065] In one exemplary embodiment of this application, such as Figure 1 , Figure 2 As shown, the mounting bracket 20 is provided with multiple reinforcing members 50, wherein at least one end of the reinforcing member 50 is connected to the longitudinal beam mounting section 21, and the other end is connected to the leaf spring mounting section 22. The reinforcement member 50 can significantly improve the mechanical properties of the mounting bracket 20 by forming additional support between the longitudinal beam mounting section 21 and the leaf spring mounting section 22, distributing and transferring loads, reducing structural deformation, and enhancing the resistance to bending and torsion.

[0066] Furthermore, such as Figure 3 As shown, the distance between the central axis of the leaf spring through hole 221 and the first end of the connecting section 24 is H1, the distance between the central axis of the leaf spring through hole 221 and the crossbeam body 10 is H2, the length of the crossbeam body 10 along its length extension direction is L1, and the distance between the two longitudinal beam mounting sections 21 is L2; ​​where 700 / 940≤L1 / L2≤850 / 940, 350 / 450≤H1 / H2≤350 / 400. The dimensions of H1, H2, L1, and L2 and their proportional relationships jointly affect the mechanical properties and structural design of the mounting bracket 20. Correctly designing these dimensions can ensure that the bracket maintains sufficient strength and stiffness when bearing the weight of the vehicle and various forces during driving. At the same time, a reasonable size ratio also helps to reduce the weight of the bracket, achieve lightweight design, thereby improving the fuel economy and power performance of the vehicle, and helping to improve the accuracy and efficiency of assembly.

[0067] In this embodiment, the ratio range of 350 / 450≤H1 / H2≤350 / 400 ensures a reasonable vertical layout between the leaf spring through-hole 221, the crossbeam body 10, and the connecting section 24. This optimizes the leaf spring's installation position, ensuring its stability and responsiveness during vehicle movement. It also effectively distributes loads, reduces structural stress concentration, and improves the overall structural rigidity and strength. The condition 700 / 940≤L1 / L2≤850 / 940 aims to optimize the spatial layout of the bracket on the vehicle's floor, considering the vehicle's dynamic performance, space utilization efficiency, and structural stability. A longer crossbeam body L1 and an appropriate L1 / L2 ratio help improve the frame's lateral rigidity, reducing vehicle roll during cornering or encountering uneven surfaces, thereby enhancing driving stability and passenger comfort. This layout also facilitates the rational allocation of wiring harnesses and other bottom components, avoiding space congestion and simplifying maintenance and repair.

[0068] According to another specific embodiment of this application, a vehicle is also provided, which has a frame support structure, the frame support structure being the same as that described in the above embodiments. Applying the optimized frame support structure to the vehicle improves fuel economy and power performance, reduces manufacturing and operating costs, while ensuring the vehicle's structural strength and stability. The implementation effect is a comprehensive improvement in vehicle performance, including optimization of fuel economy, power performance, manufacturing and operating costs, and improved structural strength and stability.

[0069] This application also provides a preferred embodiment of a frame support structure, which achieves lightweighting by setting weight-reducing holes in key parts such as the longitudinal beam mounting section 21 and the crossbeam body 10, and by adopting an overall hollow structure design.

[0070] Specifically, the chassis support structure includes a longitudinal beam mounting section 21, a crossbeam body 10, a cab rear suspension mounting section 23, a leaf spring mounting section 22, a connecting section 24, a reinforcing member 50, weight reduction holes 40, and a reinforcing section 30. The overall structure is designed as a hollow structure, and the integrated design achieves structural lightweighting, reducing weight by more than 20kg and improving the overall vehicle performance. The longitudinal beam mounting section 21 has four longitudinal beam mounting holes and weight reduction holes 40, and has a hollow structure. When connected to the web surface of the longitudinal beam, it is set on the same plane. The leaf spring mounting section 22 extends upward and connects to the longitudinal beam mounting section 21 through the integrated front suspension rear bracket. It has an overall cylindrical structure and is used to fix the leaf spring. The cab rear suspension mounting section 23 has an extended flat plate structure. The cab rear suspension mounting section 23 has four mounting holes for fixed connection with the cab rear suspension. The crossbeam body 10 has an overall groove-shaped hollow structure and is connected to the longitudinal beam mounting section 21 through the connecting section 24, which can increase the frame connection rigidity. The air compressor mounting section 11 has a quadrilateral structure, extends downward and connects to the crossbeam body 10, and is used to fix the air compressor.

[0071] The wiring harness is fixed to the side of the crossbeam body 10 via a limiting boss 60. The connecting section 24 is used to connect the crossbeam body 10 and the longitudinal beam mounting section 21. The connecting section 24 is also provided with a weight reduction hole 40. The connecting section 24, through the setting of angles α and β, can achieve a reasonable gap between the integrated bracket and the upper wing surface of the longitudinal beam and the powertrain water pipe, so as to avoid interference. The reinforcing member 50 and the reinforcing section 30 have a structural strengthening function and are respectively set between the longitudinal beam mounting section 21 and the leaf spring mounting section 22, between the longitudinal beam mounting section 21 and the rear suspension mounting section 23 of the cab, and inside the crossbeam body 10. The weight reduction hole 40 can realize structural lightweighting and is set on the mounting bracket 20 and the crossbeam body 10.

[0072] The frame support structure, through integrated design, has fewer parts and fewer dimensional chains, improving assembly accuracy and efficiency while reducing manual labor load.

[0073] The values ​​of angles α and β are controlled by the dimensions of H1, H2, L1, and L2. Considering the layout and structural strength, the optimal range for L1 / L2 is 700 / 940 to 850 / 940, and the optimal range for H1 / H2 is 350 / 400 to 350 / 450.

[0074] More mounting positions can be integrated on the main body of the crossbeam 10, and corresponding components can be installed according to the actual situation.

[0075] As can be seen from the above description, the chassis support structure in this embodiment has the following beneficial effects: it reduces the vehicle's weight, improves fuel economy and power performance, and also reduces the overall vehicle manufacturing and operating costs; the chassis support structure integrates multiple functional components, reducing the number of parts and simplifying the dimensional chain, thereby improving assembly precision and efficiency; the integrated design reduces the handling and assembly steps of parts during assembly, reduces the workload of workers, and improves the efficiency of the assembly line; the slotted hollow structure design of the crossbeam body 10 and the reasonable layout of the connecting section 24 increase the rigidity of the chassis connection parts and improve the overall stability of the vehicle; the connecting section 24, through specific angles α and β, ensures a reasonable gap between the chassis support structure and the upper flange of the longitudinal beam and the powertrain water pipe, avoiding interference between components; the design of the chassis support structure makes reasonable use of the vehicle's internal space, and through a compact layout, improves space utilization, reduces the impact on other vehicle systems, and helps to achieve lightweight and miniaturized vehicle design.

[0076] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0077] In addition to the above, it should be noted that the terms "one embodiment," "another embodiment," and "embodiment" used in this specification refer to specific features, structures, or characteristics described in connection with that embodiment, which are included in at least one embodiment described in the general description of this application. The appearance of the same expression in multiple places in the specification does not necessarily refer to the same embodiment. Furthermore, when a specific feature, structure, or characteristic is described in connection with any embodiment, the intention is to suggest that implementing such a feature, structure, or characteristic in conjunction with other embodiments also falls within the scope of this invention.

[0078] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0079] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A vehicle frame support structure, characterized in that, include: The main body of the crossbeam (10), at least part of which is a hollow structure; Mounting bracket (20), there are multiple mounting brackets (20), the mounting bracket (20) is connected to the crossbeam body (10), the mounting bracket (20) is used to connect with at least one of the longitudinal beam, leaf spring, and cab rear suspension, and the mounting bracket (20) is integrally formed with the crossbeam body (10); The hollow structure includes a hollow space (100) formed by the bottom side of the main body of the crossbeam (10) recessed towards the top side of the main body of the crossbeam (10), and the hollow space (100) extends along the length direction of the main body of the crossbeam (10). There are two mounting brackets (20), each connected to both ends of the main beam (10). Each mounting bracket (20) is located on the side of the opening of the hollow space (100). Each mounting bracket (20) includes a connecting section (24), a longitudinal beam mounting section (21), and a leaf spring mounting section (22) arranged sequentially along a direction away from the main beam (10). At least one mounting hole (211) is provided on the longitudinal beam mounting section (21), and the longitudinal beam mounting section (21) is connected to the longitudinal beam through the mounting hole (211); The leaf spring mounting section (22) is located on the side of the longitudinal beam mounting section (21) away from the crossbeam body (10). The leaf spring mounting section (22) has a leaf spring through hole (221) for fixing the leaf spring. Wherein, when the longitudinal beam mounting section (21) is connected to the longitudinal beam, the inner end face of the longitudinal beam mounting section (21) is flush with the outer end face of the longitudinal beam; The first end of the connecting segment (24) is connected to the longitudinal beam installation segment (21), and the first end of the connecting segment (24) and the longitudinal beam installation segment (21) have an angle α. The second end of the connecting segment (24) is connected to the crossbeam body (10), and the second end of the connecting segment (24) and the crossbeam body (10) have an angle β, where α+β=270°. The distance between the central axis of the leaf spring through hole (221) and the first end of the connecting section (24) is H1, the distance between the central axis of the leaf spring through hole (221) and the crossbeam body (10) is H2, the length of the crossbeam body (10) is L1 along the length extension direction of the crossbeam body (10), and the distance between the two longitudinal beam mounting sections (21) is L2; Wherein, 700 / 940≤L1 / L2≤850 / 940, and / or, 350 / 450≤H1 / H2≤350 / 400.

2. The vehicle frame support structure according to claim 1, characterized in that, The hollow structure also includes a plurality of hollow holes (101) opened on the side wall of the hollow space (100), and the plurality of hollow holes (101) are spaced apart along the length direction of the main body of the crossbeam (10).

3. The vehicle frame support structure according to claim 2, characterized in that, A reinforcing section (30) is provided between adjacent hollow holes (101), the reinforcing section (30) is located in the hollow space (100), and the reinforcing section (30) is connected to the side wall of the hollow space (100).

4. The vehicle frame support structure according to claim 1, characterized in that, The mounting bracket (20) further includes a rear cab mounting section (23), which is connected to the longitudinal beam mounting section (21). The rear cab mounting section (23) is located on the side of the longitudinal beam mounting section (21) away from the other mounting bracket (20). At least one connecting hole (231) is provided on the rear cab mounting section (23), which is used to connect the rear cab mount.

5. The vehicle frame support structure according to any one of claims 1-4, characterized in that, A clearance space (200) is formed between the main body of the crossbeam (10) and the two mounting brackets (20), the clearance space (200) being used to avoid the longitudinal beam.

6. The vehicle frame support structure according to claim 1, characterized in that, The frame support structure also includes an air compressor mounting section (11), which is disposed on the outer wall of the crossbeam body (10). The air compressor mounting section (11) is located on the side opposite to the opening end of the hollow space (100), and is used to install and fix the air compressor.

7. The vehicle frame support structure according to claim 1, characterized in that, Multiple limiting bosses (60) are provided on the outer wall of the main body of the crossbeam (10). The multiple limiting bosses (60) are arranged at intervals along the length direction of the main body of the crossbeam (10). Limiting holes (61) are provided on the limiting bosses (60). The limiting holes (61) are used to fix the pipeline harness. The central axis of the limiting hole (61) is set parallel to the central axis of the leaf spring through hole (221).

8. The vehicle frame support structure according to claim 1, characterized in that, Multiple weight-reducing holes (40) are provided on both the longitudinal beam installation section (21) and the connecting section (24).

9. A vehicle, characterized in that, The vehicle has a frame support structure, which is the frame support structure according to any one of claims 1-8.

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