Frame support structure and vehicle with same

Abstract

The invention provides a frame support structure and a vehicle with the same, and relates to the technical field of vehicles. The frame support structure comprises a cross beam body, and at least part of the cross beam body is of a hollow structure. The mounting brackets are connected with the cross beam main body, the mounting brackets are used for being connected with at least one of a longitudinal beam, a plate spring and a cab rear suspension, and the mounting brackets and the cross beam main body are integrally formed. According to the technical scheme, the cross beam body is arranged to be of the hollow structure, the weight of the support structure can be greatly reduced, the light weight of the support structure is achieved, the multiple installation supports are integrated on the cross beam body and connected with the longitudinal beam, the plate spring, the cab rear suspension and other components, and then the multiple components can be integrated into a whole; in the assembling process of all the components, the assembling precision and efficiency can be improved, meanwhile, the overall structural strength can be optimized, and the space layout of a vehicle chassis and the rear portion of a cab is more reasonable and flexible.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and in particular, to a frame support structure and a vehicle having the same. Background Art

[0002] As an important load-bearing component, the vehicle support is an important task in the design to reduce weight while ensuring the structural strength and safety performance of the vehicle. In the traditional vehicle support design, there is a contradiction between the weight and the structural strength of the support. To ensure the strength of the support, it is usually necessary to increase the thickness and material of the support, but this will increase the weight of the support, and lightweight is an important goal in the current vehicle design.

[0003] In the prior art, a split structure design is usually adopted, in which each component is independently designed and manufactured, and then combined by welding or bolt connection during the vehicle assembly process; materials such as lightweight materials (such as aluminum alloy, high-strength steel, etc.) are used to reduce the weight of the components; additional reinforcing ribs or reinforcing plates are added to improve the stiffness and strength of local areas to solve the design and assembly problems of components such as the cab rear mount, front spring rear mount, crossbeam support and crossbeam. However, the above technical solutions have problems such as large weight, low assembly accuracy, low efficiency, high cost and low space utilization rate.

[0004] In view of the above technical problems, no effective solution has been proposed yet. Summary of the Invention

[0005] The main object of the present invention is to provide a frame support structure and a vehicle having the same to solve the problems of large weight and low integration degree of the vehicle support in the prior art.

[0006] To achieve the above object, according to one aspect of the present invention, a frame support structure is provided, including: a crossbeam main body, at least part of the crossbeam main body being a hollow structure; a plurality of mounting brackets, the mounting brackets being connected to the crossbeam main body, the mounting brackets being used for connecting to at least one of a longitudinal beam, a leaf spring, and a cab rear mount, and the mounting brackets being integrally formed with the crossbeam main body.

[0007] Further, the hollow structure includes a hollow space formed by the bottom side of the crossbeam main body recessing towards the top side of the crossbeam main body, and the hollow space extends along the length direction of the crossbeam main body.

[0008] Further, the hollow structure further includes a plurality of hollow holes formed on the side wall of the hollow space, and the plurality of hollow holes are spaced along the length direction of the crossbeam main body.

[0009] Further, a reinforcing section is provided between adjacent hollow holes, the reinforcing section is located in the hollow space, and the reinforcing section is connected to the side wall of the hollow space.

[0010] Furthermore, there are two mounting brackets, which are respectively connected to both ends of the crossbeam main body. The mounting brackets are both arranged on the side where the opening end of the hollow space is located. The mounting bracket includes a connecting section, a longitudinal beam mounting section, and a leaf spring mounting section arranged in sequence along the direction away from the crossbeam main body. Among them, at least one mounting hole is provided on the longitudinal beam mounting section, and the longitudinal beam mounting section is connected to the longitudinal beam through the mounting hole; the leaf spring mounting section is arranged on the side of the longitudinal beam mounting section away from the crossbeam main body, and a leaf spring through-hole is provided in the leaf spring mounting section for fixing the leaf spring; among them, when the longitudinal beam mounting section is connected to the longitudinal beam, the inner end surface of the longitudinal beam mounting section is arranged flush with the outer end surface of the longitudinal beam.

[0011] Furthermore, the mounting bracket further includes a cab rear suspension mounting section, which is connected to the longitudinal beam mounting section, and the cab rear suspension mounting section is arranged on the side of the longitudinal beam mounting section away from the other mounting bracket. At least one connecting hole is provided on the cab rear suspension mounting section for connecting the cab rear suspension.

[0012] Furthermore, an avoidance space is formed between the crossbeam main body and the two mounting brackets for avoiding the longitudinal beam.

[0013] Furthermore, the frame bracket structure further includes an air compressor mounting section, which is arranged on the outer wall of the crossbeam main body and is located on the side opposite to the opening end of the hollow space for mounting and fixing the air compressor.

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

[0015] Furthermore, a plurality of limiting bosses are provided on the outer wall of the crossbeam main body. Along the length direction of the crossbeam main body, the plurality of limiting bosses are arranged at intervals, and limiting holes are provided on the limiting bosses for fixing the pipeline harness. Among them, the central axis of the limiting hole is arranged parallel to the central axis of the leaf spring through-hole.

[0016] Furthermore, a plurality of weight-reducing holes are provided on both the longitudinal beam mounting 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 crossbeam main body is H2. Along the length extension direction of the crossbeam main body, the length of the crossbeam main body is L1, and the distance between the two longitudinal beam connecting sections is L2; among them, 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, which has a frame support structure, and the frame support structure is the above-mentioned frame support structure.

[0019] Applying the technical solution of the present invention, the crossbeam main body is set as a hollow structure, which can greatly reduce the weight of the support structure and achieve the lightweight of the support structure. By integrating multiple mounting brackets on the crossbeam main body and connecting them to various components such as the longitudinal beam, leaf spring, and cab rear suspension respectively, multiple components can be integrated into one body. During the assembly process of each component, the assembly accuracy and efficiency can be improved, and at the same time, the overall structural strength can be optimized, making the spatial layout of the vehicle chassis and the rear part of the cab more reasonable and flexible. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings forming a part of this application are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

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

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

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

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

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

[0026] Among them, the above-mentioned drawings include the following reference numerals:

[0027] 10. Crossbeam main body;

[0028] 101. Hollow hole;

[0029] 11. Air compressor installation section;

[0030] 20. Mounting bracket;

[0031] 200. Avoidance space;

[0032] 21. Longitudinal beam installation section;

[0033] 211. Mounting hole;

[0034] 22. Leaf spring mounting section;

[0035] 221. Leaf spring through-hole;

[0036] 23. Cab rear suspension mounting section;

[0037] 231. Connecting hole;

[0038] 24. Connecting section;

[0039] 30. Reinforcing section;

[0040] 40. Weight-reducing hole;

[0041] 50. Reinforcing member;

[0042] 60. Limiting boss;

[0043] 61. Limiting hole. Detailed implementation manners

[0044] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0045] It should be noted that the terms used herein are only for describing specific implementation manners and are not intended to limit the exemplary implementation manners according to this application. As used herein, unless otherwise clearly specified in the context, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "include" and / or "comprise" 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 and claims of this application and the above-mentioned drawings are used to distinguish similar objects and do not necessarily need to describe a specific order or sequence. It should be understood that such terms can be interchanged under appropriate circumstances so that the implementation manners of this application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units does not necessarily have to be limited to those clearly listed steps or units, but may include other steps or units that are not clearly listed or are inherent to these processes, methods, products, or devices.

[0047] Now, exemplary embodiments according to the present application will be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many different forms and should not be construed as being limited only to the embodiments set forth herein. It should be understood that these embodiments are provided so that the disclosure of the present application is thorough and complete, and the concept of these exemplary embodiments is fully conveyed to those of ordinary skill 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 thus their descriptions will be omitted.

[0048] Combined with Figures 1 to 5 As shown, according to a specific embodiment of the present application, a frame bracket structure is provided.

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

[0050] Applying the technical solution of this embodiment, setting the crossbeam main body 10 as a hollow structure can greatly reduce the weight of the bracket structure and achieve the lightweight of the bracket structure. Integrating multiple mounting brackets 20 on the crossbeam main body 10 and connecting them to various components such as the longitudinal beam, leaf spring, and cab rear suspension respectively can integrate multiple components into one. During the assembly process of each component, the assembly accuracy and efficiency can be improved, and at the same time, the overall structural strength can be optimized, making the spatial layout of the vehicle chassis and the rear part of the cab more reasonable and flexible.

[0051] Specifically, as Figure 2 shown, the hollow structure includes a hollow space 100 formed by the bottom side of the crossbeam main body 10 recessing towards the top side of the crossbeam main body 10. The hollow space 100 extends along the length direction of the crossbeam main body 10. The formation of the hollow space 100 reduces the material usage of the crossbeam main body 10, thereby reducing the weight of the part and helping to improve fuel economy.

[0052] It should be noted that the top side of the crossbeam main body 10 needs to bear the load above it. The crossbeam main body 10 can be arranged under the cab, cargo box, etc. The bottom side of the crossbeam main body 10 is directly in contact with the lower structure of the vehicle or connected through a connecting piece. Forming the hollow space 100 by recessing the bottom side of the crossbeam main body 10 towards the top side, the longitudinally extending hollow space 100 can ensure the support of the crossbeam main body 10 for the top-side components while achieving lightweight.

[0053] In this embodiment, the hollow structure can improve the air flow around the beam main body 10, reduce air resistance, further improve fuel efficiency and driving stability. And since the bracket structure is connected to multiple components, on some components that require heat dissipation, the hollow structure can provide better air circulation to help with heat dissipation.

[0054] Furthermore, as Figure 1 , Figure 2 shown, the hollow structure further includes a plurality of hollow holes 101 formed in the side wall of the hollow space 100, and the plurality of hollow holes 101 are arranged at intervals along the length direction of the beam main body 10. While maintaining the structural integrity and strength of the beam main body 10, the arrangement of the hollow holes 101 can remove more unnecessary materials to achieve further weight reduction. At the same time, the shape and structure of the hollow holes 101 can be set as a structure with a strengthening effect according to needs to improve the overall torsional resistance performance.

[0055] Specifically, as Figure 2 shown, a strengthening section 30 is arranged between adjacent hollow holes 101. The strengthening section 30 is located in the hollow space 100 and is connected to the side wall of the hollow space 100. By connecting with the side wall of the hollow space 100, the strengthening section 30 can significantly improve the local stiffness of the beam main body 10, help improve the bending and torsional resistance performance of the beam main body 10, enhance the ability of the beam main body 10 to resist external loads, reduce deformation, and extend the service life. By arranging the strengthening section 30 between adjacent hollow holes 101, the hollow structure of the beam main body 10 not only achieves the goal of lightweight design but also ensures the reliability and durability of the structure.

[0056] In an embodiment of the present application, the strengthening section 30 extends along the inner side wall of the hollow space 100 to the bottom side of the hollow space 100 and forms a concave notch towards the opening direction of the hollow space 100 to strengthen the entire hollow space 100.

[0057] Furthermore, as Figures 1 - 3As shown, there are two mounting brackets 20, and the two mounting brackets 20 are respectively connected to both ends of the crossbeam main body 10. The mounting brackets 20 are both arranged on the side where the opening end of the hollow space 100 is located. The mounting bracket 20 includes a connecting section 24, a longitudinal beam mounting section 21, and a leaf spring mounting section 22 arranged in sequence along the direction away from the crossbeam main body 10. Among them, at least one mounting hole 211 is opened 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 arranged on the side of the longitudinal beam mounting section 21 away from the crossbeam main body 10, and the leaf spring mounting section 22 is provided with 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 arranged flush with the outer end face of the longitudinal beam. Arranging two mounting brackets 20 to be respectively connected to both ends of the crossbeam main body 10 can effectively disperse the load and improve the structural stability. At the same time, the mounting brackets 20 are arranged on the side where the opening end of the hollow space 100 is located, which can not only utilize the existing space but also avoid interference with other vehicle components, optimizing the internal layout of the vehicle. The connecting section 24, as a transition part, ensures a smooth transition and a firm connection between the mounting bracket 20 and the crossbeam main body 10. It helps to disperse stress and reduce stress concentration that may be generated due to direct connection; at least one mounting hole 211 opened on the longitudinal beam mounting section 21 is used for fixed connection with the longitudinal beam of the vehicle. Ensuring that the inner end face of the longitudinal beam mounting section 21 is arranged flush with the outer end face of the longitudinal beam not only helps to ensure the connection accuracy but also can reduce air resistance and improve the aerodynamic performance of the vehicle; the leaf spring mounting section 22 is arranged on the side of the longitudinal beam mounting section 21 away from the crossbeam main body 10 for fixing the leaf spring system of the vehicle. The design of the leaf spring through hole 221 ensures that the leaf spring can pass through stably and be fixed in place, providing the necessary suspension and shock absorption functions for the vehicle. Such an arrangement integrates different functional components (such as longitudinal beam connection and leaf spring fixing) into one mounting bracket 20, reducing the number of parts, simplifying the vehicle assembly process, improving the assembly efficiency, and at the same time reducing the manufacturing cost.

[0058] It should be noted that the inner end face of the longitudinal beam mounting section 21 is the end face on the side close to the crossbeam main body 10, and the outer end face of the longitudinal beam is the end face close to the mounting bracket 20. When the longitudinal beam mounting section 21 is connected to the longitudinal beam, the fact that the inner end face of the longitudinal beam mounting section 21 is flush with the outer end face of the longitudinal beam helps to maintain the continuity and integrity of the body lines and improve the aesthetics of the vehicle. In addition, this design can also avoid leaving obvious assembly marks on the side of the vehicle, maintaining the design consistency and high-end feeling. And when the vehicle collides, the flush connection surface can reduce potential damage points, helping to improve the passive safety of the vehicle.

[0059] Specifically, the mounting bracket 20 further includes a cab rear suspension mounting section 23. The cab rear suspension mounting section 23 is connected to the longitudinal beam mounting section 21, and the cab rear suspension mounting section 23 is disposed on a side of the longitudinal beam mounting section 21 away from the other mounting bracket 20. At least one connection hole 231 is formed in the cab rear suspension mounting section 23, and the connection hole 231 is used to connect the cab rear suspension. Integrating the cab rear suspension mounting section 23 on the mounting bracket 20 reduces the number of parts at the bottom of the vehicle, simplifies the assembly process, improves production efficiency, and also reduces the manufacturing cost of the vehicle; it achieves the goals of lightweight and structural optimization, and also ensures the stability, safety, and comfort of the vehicle during driving.

[0060] Further, as Figure 3 shown, an avoidance space 200 is formed between the crossbeam main body 10 and the two mounting brackets 20. The avoidance space 200 is used to avoid the longitudinal beam. The setting of the avoidance space 200 ensures that the longitudinal beam will not interfere with the crossbeam main body 10 or the mounting bracket 20 during the installation process. During vehicle assembly, the longitudinal beam needs to be accurately installed along the length direction of the vehicle to bear the main load of the vehicle and transmit power. The existence of the avoidance space 200 can ensure the smooth assembly of the longitudinal beam, avoid complex adjustments during the installation process, and improve the assembly efficiency. The setting of the avoidance space 200 also provides convenience for vehicle maintenance and repair. The avoidance space 200 can provide sufficient space for the inspection and repair of the longitudinal beam and other important components, reduce the part disassembly and reassembly work during maintenance, and reduce the maintenance cost and time.

[0061] Further, as Figure 1 shown, the frame bracket structure further includes an air compressor mounting section 11. The air compressor mounting section 11 is disposed on the outer wall of the crossbeam main body 10, and the air compressor mounting section 11 is located on a side opposite to the open end of the hollow space 100. The air compressor mounting section 11 is used to mount and fix the air compressor. Due to the vibration and heat generated by the air compressor during operation, setting the air compressor mounting section 11 on the outer wall of the crossbeam main body 10 and on a side opposite to the open end of the hollow space 100, that is, the top side of the crossbeam main body 10, can avoid affecting other sensitive components inside the vehicle. At the same time, using the outer wall of the crossbeam main body 10 provides sufficient installation space and support force, which not only solves the installation problem of the air compressor but also further optimizes the structural design of the vehicle, achieving a double improvement in vehicle performance and manufacturing cost.

[0062] Further, as Figure 3As shown, the first end of the connecting section 24 is connected to the longitudinal beam mounting section 21, and there is an included angle α between the first end of the connecting section 24 and the longitudinal beam mounting section 21. The second end of the connecting section 24 is connected to the cross beam main body 10, and there is an included angle β between the second end of the connecting section 24 and the cross beam main body 10, where α + β = 270°. Such a setting can effectively disperse and transfer loads according to the different dimensions of the cross beam main body 10, the longitudinal beam mounting section 21, and the connecting section 24, enabling the connecting section 24 to form a more stable triangular structure between the longitudinal beam and the cross beam main body 10, improving the structural rigidity and load capacity of the entire vehicle frame bracket, effectively reducing structural deformation and stress concentration, and thus enhancing the stability and safety of the vehicle. At the same time, the spatial layout at the bottom of the vehicle is optimized, and the connecting section 24 is arranged in a manner that can effectively avoid other components of the vehicle, such as avoiding interference with key components such as the drive shaft, braking system, or cable harness, facilitating the multi-system integration of the vehicle.

[0063] Furthermore, as Figure 4 , Figure 5 shown, a plurality of limiting bosses 60 are provided on the outer wall of the cross beam main body 10. Along the length direction of the cross beam main body 10, the plurality of limiting bosses 60 are arranged at intervals. A limiting hole 61 is opened on the limiting boss 60, and the limiting hole 61 is used to fix the cable harness. Among them, the central axis of the limiting hole 61 is arranged parallel to the central axis of the leaf spring through hole 221. The setting of the limiting boss 60 can not only provide a stable fixing point for the cable harness, avoiding loosening or damage of the cable harness during vehicle operation, but also, the design of the boss can play a certain protective role, preventing the cable harness from being directly impacted or worn externally. The limiting bosses 60 are arranged at intervals along the length direction of the cross beam main body 10. This distribution can ensure that the cable harness is more evenly fixed on the cross beam main body 10, improving the stability of the cable harness. At the same time, the interval setting also takes into account the natural bending and spatial layout of the cable harness, avoiding excessive stretching or extrusion of the cable harness and extending its service life. The central axis of the limiting hole 61 is arranged parallel to the central axis of the leaf spring through hole 221. This design ensures that the fixing direction of the cable harness is consistent with the vehicle traveling direction, which is beneficial to reducing the wind resistance and vibration of the cable harness during vehicle driving, and is also beneficial to the coordinated layout of the cable harness and other components of the vehicle (such as the leaf spring), avoiding unnecessary interference between components.

[0064] Furthermore, a plurality of weight reduction holes 40 are opened on both the longitudinal beam mounting section 21 and the connecting section 24. Opening the weight reduction holes 40 on the longitudinal beam mounting section 21 and the connecting section 24 can significantly reduce the total weight of the mounting bracket 20. By opening the weight reduction holes in the non-load-bearing key areas, the effective use of materials can be achieved, avoiding unnecessary weight.

[0065] In an exemplary embodiment of the present application, as Figure 1 ,Figure 2 As shown, a plurality of reinforcing members 50 are provided on the mounting bracket 20. Among them, one end of at least one 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 provision of the reinforcing member 50 can significantly improve the mechanical properties of the mounting bracket 20. By forming an additional support between the longitudinal beam mounting section 21 and the leaf spring mounting section 22, the load can be dispersed and transferred, structural deformation can be reduced, and the ability to resist bending and torsion can be enhanced.

[0066] Furthermore, as Figure 3 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, and the distance between the central axis of the leaf spring through-hole 221 and the cross-beam main body 10 is H2. Along the length extension direction of the cross-beam main body 10, the length of the cross-beam main body 10 is L1, and the distance between the two longitudinal beam mounting sections 21 is L2; wherein, 700 / 940 ≤ L1 / L2 ≤ 850 / 940, 350 / 450 ≤ H1 / H2 ≤ 350 / 400. The sizes and their proportional relationships of H1, H2, L1, and L2 jointly affect the mechanical properties and structural design of the mounting bracket 20. Correctly designing these sizes can ensure that the bracket maintains sufficient strength and stiffness when bearing the vehicle weight 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 contributing to improving the assembly accuracy and efficiency.

[0067] In this embodiment, the setting of the ratio range of 350 / 450 ≤ H1 / H2 ≤ 350 / 400 ensures a reasonable layout in the vertical direction between the leaf spring through-hole 221, the cross-beam main body 10, and the connecting section 24. It can optimize the mounting position of the leaf spring, ensure its stability and responsiveness during vehicle movement, and at the same time effectively disperse the load, reduce structural stress concentration, and enhance the stiffness and strength of the overall structure. The condition of 700 / 940 ≤ L1 / L2 ≤ 850 / 940 aims to optimize the spatial layout of the bracket on the vehicle floor, taking into account the dynamic performance, space utilization efficiency, and structural stability of the vehicle. The longer cross-beam main body L1 and the appropriate L1 / L2 ratio help to improve the lateral rigidity of the vehicle frame, reduce the roll of the vehicle when turning or encountering uneven roads, thereby enhancing driving stability and passenger comfort. At the same time, this layout is also beneficial to the reasonable distribution of pipeline bundles and other bottom components, avoiding space congestion and facilitating maintenance and repair.

[0068] According to another specific embodiment of the present application, a vehicle is further provided. The vehicle has a frame support structure, and the frame support structure is the frame support structure in the above embodiment. Applying the optimized frame support structure to the vehicle improves the fuel economy and power performance of the vehicle, reduces the manufacturing cost and operating cost, and at the same time ensures the structural strength and stability of the vehicle. The implementation effect is the comprehensive improvement of vehicle performance, including the optimization of fuel economy, power performance, manufacturing cost and operating cost, as well as the improvement of structural strength and stability.

[0069] The present application also provides a preferred embodiment of the frame support structure. By setting weight reduction holes at key parts such as the longitudinal beam installation section 21 and the cross beam main body 10, and adopting a hollow structure design as a whole, the lightweight of the structure is realized.

[0070] Specifically, the frame support structure includes a longitudinal beam installation section 21, a cross beam main body 10, a cab rear suspension installation section 23, a leaf spring installation section 22, a connection section 24, a reinforcing member 50, a weight reduction hole 40, and a reinforcing section 30. The whole is set as a hollow structure, and the lightweight of the structure is realized through integrated design, with a weight reduction of more than 20 kg and an improvement in the overall vehicle benefit. Four longitudinal beam installation holes and weight reduction holes 40 are provided on the longitudinal beam installation section 21, which is in a hollow structure and is arranged in the same plane when connected to the longitudinal beam web; the leaf spring installation section 22 is connected to the longitudinal beam installation section 21 by integrating the rear bracket of the front suspension and extending upward, and is in a cylindrical structure as a whole for fixing the leaf spring; the cab rear suspension installation section 23 is in an extended flat plate structure, and four installation holes are provided on the cab rear suspension installation section 23 for fixedly connecting with the cab rear suspension; the cross beam main body 10 is in a groove-shaped hollow structure as a whole and is connected to the longitudinal beam installation section 21 through the connection section 24, which can increase the connection stiffness of the frame; the air compressor installation section 11 is in a quadrilateral structure and extends downward to be connected to the cross beam main body 10 for fixing the air compressor.

[0071] The pipeline bundle is arranged on the side of the cross beam main body 10 through the limit boss 60 for fixing the pipeline bundle; the connection section 24 is used to connect the cross beam main body 10 and the longitudinal beam installation section 21, and weight reduction holes 40 are also provided on the connection section 24; through the settings of angles α and β, the connection section 24 can ensure a reasonable gap between the integrated bracket and the upper wing surface of the longitudinal beam and the water pipe of the power assembly, avoiding interference; the reinforcing member 50 and the reinforcing section 30 play a role in strengthening the structure and are respectively arranged between the longitudinal beam installation section 21 and the leaf spring installation section 22, between the longitudinal beam installation section 21 and the cab rear suspension installation section 23, and inside the cross beam main body 10; the weight reduction hole 40 can realize the lightweight of the structure and is provided on the mounting bracket 20 and the cross beam main body 10.

[0072] Through integrated design, the frame support structure has fewer parts, fewer dimensional chains, improved assembly accuracy, improved assembly efficiency, and reduced manual workload.

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

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

[0075] From the above description, it can be seen that the frame support structure in this embodiment has the following beneficial effects: it reduces the vehicle's own weight, improves fuel economy and power performance, and also reduces the manufacturing cost and operating cost of the whole vehicle; the frame support structure integrates multiple functional components, reduces the number of parts, simplifies the dimension chain, thereby improving the assembly accuracy and efficiency; the integrated design reduces the handling and assembly steps of components during the assembly process, reduces the operation load of workers, and improves the efficiency of the assembly line; the grooved hollow structure design of the crossbeam main body 10 and the reasonable layout of the connecting section 24 increase the stiffness of the frame connection part and improve the overall stability of the vehicle; the connecting section 24 is set at specific angles α and β to ensure a reasonable gap between the frame support structure and the upper wing surface of the longitudinal beam and the water pipe of the power assembly, avoiding interference between components; the design of the frame support structure makes reasonable use of the internal space of the vehicle. Through a compact layout, it improves the space utilization rate, reduces the impact on other vehicle systems, and helps to achieve the lightweight and miniaturized design of the vehicle.

[0076] For the sake of convenience in description, spatial relative terms such as "above...", "over...", "on the upper surface of...", "above" and the like can be used here to describe the spatial position relationship between a device or feature shown in the figure and other devices or features. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure is inverted, the device described as "above other devices or structures" or "over other devices or structures" will then be positioned "below other devices or structures" or "under other devices or structures". Thus, the exemplary term "above..." can include both the orientation of "above..." and "below...". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the corresponding explanations for the spatial relative descriptions used here will be made.

[0077] In addition to the above, it should be noted that the "one embodiment", "another embodiment", "embodiment", etc. mentioned in this specification refer to the specific features, structures or characteristics described in connection with that embodiment being included in at least one embodiment generally described in this application. The same expression appearing in multiple places in the specification does not necessarily refer to the same embodiment. Further, when describing a specific feature, structure or characteristic in connection with any one embodiment, it is intended that the implementation of such feature, structure or characteristic in connection with other embodiments also fall within the scope of the present invention.

[0078] In the above embodiments, the descriptions of each embodiment have their own emphases. For the parts not detailed in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

[0079] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A frame support structure, characterized in that: include: A crossbeam body (10), wherein at least a portion of the crossbeam body (10) is a hollow structure; A mounting bracket (20), wherein the mounting bracket (20) is multiple, the mounting bracket (20) is connected to the cross beam body (10), the mounting bracket (20) is used to be connected to at least one of a longitudinal beam, a leaf spring, and a cab rear suspension, and the mounting bracket (20) and the cross beam body (10) are integrally formed.

2. The frame support structure according to claim 1, characterized in that: The hollow structure comprises a hollow space (100) formed by the bottom side of the beam body (10) being recessed toward the top side of the beam body (10), and the hollow space (100) is extended along the length direction of the beam body (10).

3. The frame support structure according to claim 2, characterized in that: The hollow structure further comprises a plurality of hollow holes (101) formed on the side wall of the hollow space (100), wherein the plurality of hollow holes (101) are arranged at intervals along the length direction of the crossbeam body (10).

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

5. The frame support structure according to claim 2, characterized in that: There are two mounting brackets (20), the two mounting brackets (20) are respectively connected to the two ends of the cross beam body (10), and the mounting brackets (20) are both arranged on the side where the open end of the hollow space (100) is located, and the mounting bracket (20) comprises a connecting section (24), a longitudinal beam mounting section (21), and a leaf spring mounting section (22) which are arranged in sequence in a direction away from the cross beam body (10), wherein at least one mounting hole (211) is opened 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 arranged on a side of the longitudinal beam mounting section (21) away from the cross beam body (10), and the leaf spring mounting section (22) is provided with a leaf spring through hole (221), and the leaf spring through hole (221) is used to fix the leaf spring; When the longitudinal beam mounting section (21) is connected to the longitudinal beam, the inner end surface of the longitudinal beam mounting section (21) is arranged flush with the outer end surface of the longitudinal beam.

6. The frame support structure according to claim 5, characterized in that: The mounting bracket (20) further comprises a cab rear suspension mounting section (23), the cab rear suspension mounting section (23) being connected to the longitudinal beam mounting section (21), and the cab rear suspension mounting section (23) being arranged on a side of the longitudinal beam mounting section (21) away from another mounting bracket (20), and at least one connecting hole (231) being provided on the cab rear suspension mounting section (23), and the connecting hole (231) being used for connecting the cab rear suspension.

7. The frame support structure according to any one of claims 1 to 6, characterized in that: An escape space (200) is formed between the crossbeam body (10) and the two mounting brackets (20), and the escape space (200) is used to escape the longitudinal beam.

8. The frame support structure according to claim 2, characterized in that: The frame support structure also includes an air compressor mounting section (11), which is arranged on the outer wall of the crossbeam body (10), and the air compressor mounting section (11) is located on a side opposite to the open end of the hollow space (100), and the air compressor mounting section (11) is used to install and fix the air compressor.

9. The frame support structure according to claim 5, characterized in that: The first end of the connecting section (24) is connected to the longitudinal beam mounting section (21), and the first end of the connecting section (24) and the longitudinal beam mounting section (21) have an included angle α, the second end of the connecting section (24) is connected to the cross beam body (10), and the second end of the connecting section (24) and the cross beam body (10) have an included angle β, wherein α+β=270°.

10. The frame support structure according to claim 5, characterized in that: A plurality of limiting bosses (60) are arranged on the outer wall of the cross beam body (10), and the plurality of limiting bosses (60) are arranged at a distance along the length direction of the cross beam body (10). A limiting hole (61) is provided on the limiting boss (60), and the limiting hole (61) is used to fix the pipe harness. Wherein, the central axis of the limiting hole (61) is arranged parallel to the central axis of the leaf spring through hole (221).

11. The frame support structure according to claim 5, characterized in that: A plurality of weight-reducing holes (40) are provided on the longitudinal beam installation section (21) and the connection section (24).

12. The frame support structure according to claim 9, characterized in that: 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, along the length extension direction of the crossbeam body (10), the length of the crossbeam body (10) is L1, and the distance between the two longitudinal beam mounting sections (21) is L2; Among them, 700 / 940≤L1 / L2≤850 / 940, and / or, 350 / 450≤H1 / H2≤350 / 400.

13. A vehicle, characterized in that: The vehicle has a frame support structure, and the frame support structure is the frame support structure according to any one of claims 1 to 12.

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