A nacelle upper spar assembly structure

Abstract

The application belongs to the technical field of body-in-white, and provides an engine compartment upper side beam assembly structure, which comprises a front wheel cover upper reinforcing beam outer plate, a front wheel cover front connecting plate and a water tank vertical plate, wherein the front wheel cover upper reinforcing beam outer plate, the front wheel cover front connecting plate and the water tank vertical plate form a ring-shaped closed structure, and a plurality of support assemblies are mounted on the surface of the ring-shaped closed structure. The application provides a non-load-bearing automobile engine compartment upper side beam structure formed by an internal high-pressure forming process, so as to solve the problems of insufficient installation rigidity of a traditional automobile headlamp and stamping forming difficulty. Meanwhile, the engine compartment upper side beam structure can reduce the number of welds and welding cost, and effectively improve the structural strength, structural durability and collision safety performance of the front part of the vehicle body, so as to achieve the purposes of simple structure, light weight and low cost.

Description

Technical Field

[0001] This invention belongs to the field of body-in-white technology, and specifically relates to a structure for an upper side beam assembly in the engine compartment. Background Technology

[0002] With the rapid development of the global economy, the market demand for vehicles has expanded beyond simple transportation to include multi-functional scenarios such as travel, off-roading, and adventure. These activities involve increasingly complex road conditions, including uneven terrain, mud, snow-covered areas, deserts, and jungles. Therefore, higher performance requirements are placed on vehicles in terms of stability, comfort, safety, and durability.

[0003] Traditional vehicle models typically address headlight mounting point rigidity issues by using high-strength steel plates and increasing material thickness. However, for 25% offset collisions, a patching approach is used, adding components to reinforce localized rigidity. These solutions not only increase stamping difficulty and extend manufacturing cycles but also raise costs and reduce platform utilization. Summary of the Invention

[0004] To address the problems in the background art, the present invention proposes a cabin upper side beam assembly structure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A cabin upper side beam assembly structure includes an outer plate of a front wheel arch reinforcing beam, a front wheel arch connecting plate, and a water tank vertical plate;

[0007] One end of the outer plate of the reinforcing beam on the front wheel cover is fixedly connected to the front connecting plate of the front wheel cover.

[0008] The end of the front connecting plate of the front wheel cover away from the outer plate of the reinforcing beam on the front wheel cover is fixedly connected to the surface of the vertical plate of the water tank.

[0009] The end of the water tank vertical plate away from the front connecting plate of the front wheel cover is fixedly connected to the surface of the outer plate of the reinforcing beam on the front wheel cover.

[0010] The outer plate of the reinforcing beam on the front wheel cover, the front connecting plate of the front wheel cover, and the vertical plate of the water tank form a ring-shaped closed structure, and several kinds of bracket assemblies are installed on the surface of the ring-shaped closed structure.

[0011] Preferably, the outer plate of the reinforcing beam on the front wheel arch includes a straight outer plate and a curved outer plate that are fixedly connected;

[0012] The end face of the curved outer plate away from the straight outer plate is fixedly connected to the front connecting plate of the front wheel arch.

[0013] The outer curved surface of the curved outer plate is fixedly connected to the end of the water tank vertical plate away from the front wheel arch connecting plate.

[0014] Preferably, in the annular closed structure, the front fender front mounting bracket assembly is mounted on the outer curved surface of the curved outer plate.

[0015] Preferably, the front wheel arch connecting plate includes a straight connecting plate and a curved connecting plate that are fixedly connected;

[0016] The end of the curved connecting plate away from the straight connecting plate is fixedly connected to the end of the curved outer plate;

[0017] The end of the straight connecting plate away from the curved connecting plate is fixedly connected to the inner surface of the vertical plate of the water tank.

[0018] Preferably, in the annular closed structure;

[0019] The front wheel arch front connecting plate is sequentially provided with a headlight bracket support plate assembly, a water tank mounting bracket assembly, and a water tank pillar support plate assembly;

[0020] The headlight bracket support plate assembly and the water tank mounting bracket assembly are fixedly connected to the surface of the curved connecting plate.

[0021] The water tank column support plate assembly is fixedly connected to the end of the straight connecting plate at the fixed connection point with the water tank vertical plate.

[0022] Preferably, the water tank mounting bracket assembly includes a cover lock mounting bracket assembly and an upper section of the vertical plate assembly;

[0023] The cover lock mounting bracket assembly is fixedly connected to the upper section assembly of the vertical plate, forming a semi-enclosed structure;

[0024] The hairpin lock mounting bracket assembly and the upper section assembly of the vertical plate are both fixedly connected to the surface of the curved connecting plate, forming a fully enclosed structure.

[0025] Preferably, the vertical plate of the water tank is curved;

[0026] The inner curved surface of the curved water tank vertical plate is fixedly connected to the end of the straight connecting plate.

[0027] The end of the curved water tank vertical plate away from the straight connecting plate is fixedly connected to the outer curved surface of the curved outer plate.

[0028] Preferably, in the annular closed structure, the surface of the water tank vertical plate is sequentially equipped with a water tank vertical plate connecting plate assembly, a water tank crossbeam support bracket assembly, and a fender lower bracket assembly;

[0029] The water tank vertical plate connecting plate assembly is installed on the inner surface of the water tank vertical plate, and its side is connected to the inner surface of the front wheel cover front connecting plate;

[0030] The water tank crossbeam support bracket assembly is fixedly connected to the surface of the water tank vertical plate;

[0031] The fender lower bracket assembly is fixedly connected to the outer surface of the water tank vertical plate.

[0032] Preferably, the water tank vertical plate connecting plate assembly includes a front wheel cover front end plate assembly and a suspension mounting point sleeve;

[0033] The bottom of the front wheel arch front plate assembly is fixedly connected to the suspension mounting point sleeve;

[0034] The side of the front wheel arch front panel assembly is connected to the inner surface of the front wheel arch front connecting plate;

[0035] The suspension mounting point sleeve passes through the water tank vertical plate and is fixedly connected to the vehicle body suspension reinforcement plate, which abuts against the outer surface of the water tank vertical plate.

[0036] Preferably, the outer plate of the reinforcing beam on the front wheel arch, the front connecting plate of the front wheel arch, and the vertical plate of the water tank are all processed by internal high-pressure forming process.

[0037] The beneficial effects of this invention are:

[0038] 1. The upper side beam structure of the engine compartment of the present invention adopts the outer plate of the front wheel arch reinforcing beam, the front wheel arch connecting plate and the water tank vertical plate to improve the structural strength of the front of the non-load-bearing new energy off-road vehicle in frontal high-speed collision, 40% offset collision and 25% offset collision. Moreover, the internally high pressure formed upper side beam assembly of the engine compartment is equipped with two energy transfer paths, which decomposes the damage caused by energy concentration and ensures that the passenger compartment has enough space to ensure the safety of the driver, which is superior to the safety factor of the traditional upper side beam structure of the engine compartment.

[0039] 2. This invention solves the problem of poor matching between components of the hood system, fender system, and headlight system caused by insufficient rigidity of the front of the vehicle body, which affects the appearance. It improves the rigidity and modality of the front of the vehicle body, makes the front of the vehicle body stable, and makes the matching lines between components smooth and beautiful.

[0040] 3. This invention proposes a non-load-bearing automotive engine compartment upper beam structure using an internal high-pressure forming process to solve the problems of insufficient rigidity in traditional automotive headlight installation and difficulty in stamping.

[0041] 4. The cabin upper beam structure provided by the present invention can reduce the number of welds and the welding cost, and effectively improve the structural strength, structural durability and collision safety performance of the front of the vehicle body, thereby achieving the goals of simple structure, lightweight and low cost.

[0042] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures pointed out in the description and the drawings. Attached Figure Description

[0043] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0044] Figure 1 A schematic diagram of the structure of a cabin upper side beam assembly according to the present invention is shown;

[0045] Figure 2 An exploded view of a cabin upper side beam assembly structure according to the present invention is shown;

[0046] Figure 3 This invention shows an axial view of the collision path transmission of the upper side beam assembly in the cabin.

[0047] Figure 4 This shows an assembly axis view of the upper side beam assembly structure of the cabin according to the present invention;

[0048] Figure 5 A cross-sectional view of the outer plate of the reinforcing beam on the front wheel arch of the present invention is shown;

[0049] Figure 6 An axial view of the water tank vertical plate connecting plate assembly of the present invention is shown;

[0050] Figure 7 An axial view of the water tank vertical plate connecting plate assembly of the present invention is shown;

[0051] Figure 8 The diagram shows a cross-sectional view of the water tank vertical plate connecting plate assembly, the water tank vertical plate, and the vehicle body suspension reinforcement plate of the present invention.

[0052] Figure 9 An axial view of the fender lower support assembly of the present invention is shown.

[0053] In the diagram: 1. Outer plate of the upper reinforcing beam of the front wheel arch; 101. Straight outer plate; 102. Curved outer plate; 2. Front connecting plate of the front wheel arch; 201. Straight connecting plate; 202. Curved connecting plate; 3. Radiator vertical plate; 4. Front fender front mounting bracket assembly; 5. Headlight bracket support plate assembly; 6. Radiator mounting bracket assembly; 601. Hood lock mounting bracket assembly; 602. Upper section of vertical plate assembly; 7. Radiator vertical plate connecting plate assembly; 701. Front end plate assembly of the front wheel arch; 702. Suspension mounting point sleeve; 8. Radiator pillar support plate assembly; 9. Body suspension reinforcing plate; 10. Radiator crossbeam support bracket assembly; 11. Lower fender bracket assembly; 1101. Upper fender bracket assembly; 1102. Lower fender bracket. Detailed Implementation

[0054] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0055] like Figure 1 As shown, a cabin upper beam assembly structure includes a front wheel arch reinforcing beam outer plate 1, a front wheel arch connecting plate 2, and a water tank vertical plate 3. One end of the front wheel arch reinforcing beam outer plate 1 is welded to the front wheel arch connecting plate 2, the end of the front wheel arch connecting plate 2 away from the front wheel arch reinforcing beam outer plate 1 is welded to the surface of the water tank vertical plate 3, and the end of the water tank vertical plate 3 away from the front wheel arch connecting plate 2 is welded to the surface of the front wheel arch reinforcing beam outer plate 1. The front wheel arch reinforcing beam outer plate 1, the front wheel arch connecting plate 2, and the water tank vertical plate 3 form a ring-shaped closed structure. Several bracket assemblies are installed on the surface of this ring-shaped closed structure for supporting and connecting other components.

[0056] It should be noted that the outer plate 1 of the front wheel arch reinforcement beam, the front wheel arch connecting plate 2, and the water tank vertical plate 3 are all made using an internal high-pressure forming process. The three are combined and connected by CO2 welding to form the upper side beam assembly of the engine compartment, forming the overall structure of the front of the vehicle body, which becomes the main path for the transmission of collision energy.

[0057] like Figure 2 As shown, the outer plate 1 of the front wheel arch reinforcement beam includes a straight outer plate 101 and a curved outer plate 102 that are fixedly connected (or integrally formed) in sequence. Figure 2 and Figure 4It can be seen that the end face of the curved outer plate 102 away from the straight outer plate 101 is welded to the front connecting plate 2 of the front wheel arch, and its side is welded to the vehicle body. Moreover, the outer curved surface of the curved outer plate 102 is welded to the end of the water tank vertical plate 3 away from the front connecting plate 2 of the front wheel arch.

[0058] In addition, the front wheel arch connecting plate 2 includes a straight connecting plate 201 and a curved connecting plate 202 that are fixedly connected (or integrally formed) in sequence. The end of the curved connecting plate 202 away from the straight connecting plate 201 is welded to the end of the curved outer plate 102; the end of the straight connecting plate 201 away from the curved connecting plate 202 is welded to the inner surface of the water tank vertical plate 3.

[0059] Meanwhile, the vertical plate 3 of the water tank is curved. The inner curved surface of the curved vertical plate 3 is welded to the end of the straight connecting plate 201, and the end of the curved vertical plate 3 away from the straight connecting plate 201 is welded to the outer curved surface of the curved outer plate 102.

[0060] It should be noted that, in combination Figure 3 It can be seen that when subjected to an external impact, the impact energy can be decomposed into two paths through the upper beam assembly, and finally return to the outer plate 1 of the front wheel arch reinforcement beam and the vehicle body (see details). Figure 4 The connection point ensures that the impact energy decays continuously during the transmission process, thus solving the problem of maintaining a safe space in the engine compartment during a collision, reducing engine displacement, and ensuring the driver's personal safety.

[0061] like Figure 5 As shown, this is the cross-section of the outer plate 1 of the reinforcing beam on the front wheel arch, and the thickness of this cross-section can be selected as 1.4mm (also applicable to the front connecting plate 2 of the front wheel arch and the water tank vertical plate 3). In general, this process can manufacture tubular components with different cross-sectional shapes in the axial direction, forming a closed cross-section and reducing the number of welds, thus achieving lightweight design. Generally, structural components can be reduced in weight by 20% to 30%, and shaft parts by 30% to 50%, which is significant for improving fuel economy and reducing emissions in automobiles. Furthermore, the internal high-pressure forming process reduces subsequent machining and welding work, avoids welding deformation of parts, and improves the integrity and precision of the parts. At the same time, the fatigue strength of the parts is also improved due to the reduction in weld points. In addition, the internal high-pressure forming process allows for flexible design of the cross-sectional shape of parts to meet different mechanical performance requirements. This is significant for improving the rigidity and strength of the automobile body-in-white. Finally, the internal high-pressure forming process reduces the number of parts and molds, lowering production costs. Simultaneously, the shorter process route and higher material utilization further reduce production costs.

[0062] Furthermore, in the annular closed structure, the bracket assembly includes a front fender front mounting bracket assembly 4, a front headlight bracket support plate assembly 5, a water tank mounting bracket assembly 6, a water tank vertical plate connecting plate assembly 7, a water tank pillar support plate assembly 8, a water tank crossbeam support bracket assembly 10, and a fender lower bracket assembly 11.

[0063] The front fender mounting bracket assembly 4 is installed on the outer curved surface of the curved outer panel 102 to support and fix the front fender. This design not only improves the rigidity of the vehicle body, but also ensures the stability and reliability of the front fender after installation.

[0064] In addition, the headlight bracket support plate assembly 5 and the water tank mounting bracket assembly 6 are welded to the surface of the curved connecting plate 202 to support and fix components such as the water tank. At the same time, the water tank column support plate assembly 8 is welded to the end of the straight connecting plate 201 at the connection with the water tank vertical plate 3 to further enhance the support strength of this area.

[0065] like Figure 6 As shown, as a preferred embodiment, the water tank mounting bracket assembly 6 includes a cap lock mounting bracket assembly 601 and an upper vertical plate assembly 602. The cap lock mounting bracket assembly 601 and the upper vertical plate assembly 602 are welded together to form a semi-enclosed structure; both the cap lock mounting bracket assembly 601 and the upper vertical plate assembly 602 are welded together (via...). Figure 6 At point A, a fully enclosed structure is formed on the surface of the bending connecting plate 202, forming a closed "box" structure. This solves the installation rigidity requirements of the front bumper crossbeam mounting plate assembly and the front module assembly, as well as the force required to support the hood lock during closing.

[0066] Furthermore, the water tank vertical plate connecting plate assembly 7, the water tank crossbeam support bracket assembly 10, and the fender lower bracket assembly 11 are sequentially installed on the surface of the water tank vertical plate 3. The water tank vertical plate connecting plate assembly 7 is installed on the inner surface of the water tank vertical plate 3, and its side is connected to the inner surface of the front wheel arch connecting plate 2. At the same time, the body suspension reinforcement plate 9 is welded to the surface of the water tank vertical plate 3, and the fender lower bracket assembly 11 is welded to the outer surface of the water tank vertical plate 3.

[0067] It should be noted that the lower fender bracket assembly 11 is formed by welding the upper fender bracket assembly 1101 and the lower fender bracket 1102 together (see...). Figure 9 The fender and headlight assembly are then connected using CO2 welding. This structure not only meets the installation rigidity requirements of the fender and headlights, but also allows for adjustment of the fenders and headlights in the X, Y, and Z directions, making it more convenient for exterior matching adjustments.

[0068] like Figure 7As shown, as a preferred embodiment, the water tank vertical plate connecting plate assembly 7 includes a front wheel arch front end plate assembly 701 and a suspension mounting point sleeve 702. The bottom of the front wheel arch front end plate assembly 701 and the suspension mounting point sleeve 702 are connected by CO2 welding. Figure 7 (Position B), the side of the front wheel arch front panel assembly 701 is connected to the inner surface of the front wheel arch front connecting plate 2. Simultaneously, in conjunction with... Figure 8 It is known that the suspension mounting point sleeve 702 passes through the water tank vertical plate 3 and is welded with the body suspension reinforcement plate 9. The body suspension reinforcement plate 9 abuts against the outer surface of the water tank vertical plate 3 to further enhance the support strength of this area. Figure 7 In the structure, the tube blank cavity of the water tank vertical plate connecting plate assembly 7 is used to increase the cross-sectional space. The resulting overall structure improves the local stiffness and meets the requirements of suspension installation for stiffness and durability.

[0069] It should be noted that the installation position of the front fender mounting bracket assembly 4 must ensure a uniform gap between the fender and the vehicle body, while also ensuring that the fender can effectively absorb energy during an impact, protecting the passenger compartment. The radiator mounting bracket assembly 6 is responsible for installing and securing the radiator, typically located in the front of the engine compartment, adjacent to the front grille. Its installation position must ensure unobstructed cooling channels between the radiator and the engine, while also ensuring the radiator is not easily damaged in a collision, guaranteeing the normal operation of the cooling system. The radiator vertical plate connecting plate assembly 7 connects the radiator to the surrounding frame or bracket, enhancing the radiator's stability. Its installation position needs precise control to ensure the radiator is securely and reliably fixed, while avoiding interference with other components. The radiator crossbeam support bracket assembly 10 is typically installed on the crossbeam in the engine compartment to support the weight of the radiator and its related components. Its installation position must ensure a secure connection between the bracket and the crossbeam, while also ensuring that the bracket does not interfere with or obstruct surrounding components. The lower fender bracket assembly 11 is mounted on the side beam or longitudinal beam in the lower part of the cabin to support and fix the lower part of the fender. Its installation position needs to ensure that the clearance between the fender and components such as wheels and suspension is reasonable to avoid abnormal noise or friction during driving.

[0070] A reasonable layout among the aforementioned bracket assemblies has the following important significance:

[0071] First, ensure the accurate relative positions of all components within the engine compartment to avoid mutual interference or collisions and ensure the vehicle's driving safety.

[0072] Second, optimize the heat dissipation channels to ensure that the heat from components such as the engine and water tank can be dissipated in a timely manner, avoiding performance degradation or malfunctions caused by localized overheating.

[0073] Third, it facilitates maintenance and repair. A reasonable layout allows maintenance personnel to easily access relevant areas when replacing or repairing parts, thus improving work efficiency.

[0074] Fourth, improve the overall rigidity and stability of the vehicle. Through reasonable bracket layout and connection, the overall strength of the engine compartment structure can be enhanced, thereby improving the vehicle's handling performance and driving stability.

[0075] It should be noted that the engine compartment upper beam assembly structure of the present invention has advantages such as structural stability, light weight, and low cost, and can effectively improve the rigidity and torsional strength of the vehicle body. Simultaneously, this structure also has excellent collision energy absorption performance, effectively protecting the safety of occupants during a collision. In specific implementation scenarios, this engine compartment upper beam assembly structure can be widely used in various types of automobiles, especially in models requiring high strength and torsional strength. For example, in SUVs and MPVs, this engine compartment upper beam assembly structure can effectively improve the rigidity and stability of the vehicle body, ensuring the safety and comfort of the vehicle during driving. Furthermore, this engine compartment upper beam assembly structure can be customized and optimized according to the specific needs of different vehicle models to meet the requirements of different vehicle body structures and performance.

[0076] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A nacelle overwing beam assembly structure, characterized by, The front wheel cover upper reinforcing beam outer plate (1), the front wheel cover front connecting plate (2) and the water tank vertical plate (3) form a ring-shaped closed structure, and a plurality of support assemblies are mounted on the surface of the ring-shaped closed structure. The front wheel cover upper reinforcing beam outer plate (1) comprises a straight outer plate (101) and a curved outer plate (102) fixedly connected in sequence. The end face of the curved outer plate (102) away from the straight outer plate (101) is fixedly connected with the front wheel cover front connecting plate (2). The outer curved surface of the curved outer plate (102) is fixedly connected with the end portion of the water tank vertical plate (3) away from the front wheel cover front connecting plate (2). In the ring-shaped closed structure, the outer curved surface of the curved outer plate (102) is provided with a front fender front mounting support assembly (4). The front wheel cover front connecting plate (2) comprises a straight connecting plate (201) and a curved connecting plate (202) fixedly connected in sequence. The end portion of the curved connecting plate (202) away from the straight connecting plate (201) is fixedly connected with the end portion of the curved outer plate (102). The end portion of the straight connecting plate (201) away from the curved connecting plate (202) is fixedly connected with the inner side surface of the water tank vertical plate (3).

2. A cabin upper spar assembly structure as defined in claim 1, wherein, In the ring-shaped closed structure, 3. The cabin upper spar assembly structure of Claim 1, wherein, The front wheel cover front connecting plate (2) is sequentially provided with a headlamp support support plate assembly (5), a water tank mounting support assembly (6) and a water tank stand column support plate assembly (8); The headlamp support support plate assembly (5) and the water tank mounting support assembly (6) are fixedly connected on the surface of the curved connecting plate (202); The water tank stand column support plate assembly (8) is fixedly connected at the fixed connection between the end portion of the straight connecting plate (201) and the water tank vertical plate (3).

4. The cabin upper spar assembly structure of Claim 3, wherein, The water tank mounting support assembly (6) comprises a cover lock mounting support assembly (601) and a vertical plate upper section assembly (602); The cover lock mounting support assembly (601) and the vertical plate upper section assembly (602) are fixedly connected to form a semi-closed structure; The cover lock mounting support assembly (601) and the vertical plate upper section assembly (602) are both fixedly connected on the surface of the curved connecting plate (202) to form a fully closed structure. The water tank vertical plate (3) is of a curved type; 5. A cabin upper spar assembly structure as defined in claim 4, wherein, The inner curved surface of the water tank vertical plate (3) of the curved type is fixedly connected with the end portion of the straight connecting plate (201); The end portion of the water tank vertical plate (3) of the curved type away from the straight connecting plate (201) is fixedly connected with the outer curved surface of the curved outer plate (102). In the ring-shaped closed structure, the surface of the water tank vertical plate (3) is sequentially provided with a water tank vertical plate connecting plate assembly (7), a water tank cross beam support support assembly (10) and a fender lower support assembly (11); 6. A cabin upper spar assembly structure as defined in claim 3 wherein, ​ ​ ​ 7. A cabin upper spar assembly structure as defined in claim 6, wherein, ​ The water tank vertical plate connecting plate assembly (7) is installed on the inner surface of the water tank vertical plate (3), and the side edge is connected with the inner surface of the front wheel cover front connecting plate (2); The water tank cross beam support bracket assembly (10) is fixedly connected with the surface of the water tank vertical plate (3); The fender lower support assembly (11) is fixedly connected with the outer surface of the water tank vertical plate (3).

8. The cabin upper spar assembly structure of Claim 7, wherein, The water tank vertical plate connecting plate assembly (7) comprises a front wheel cover front end plate assembly (701) and a suspension mounting point sleeve (702); The bottom of the front wheel cover front end plate assembly (701) is fixedly connected with the suspension mounting point sleeve (702); The side edge of the front wheel cover front end plate assembly (701) is connected with the inner surface of the front wheel cover front connecting plate (2); The suspension mounting point sleeve (702) is fixedly connected with a vehicle body suspension reinforcement plate (9) penetrating through the water tank vertical plate (3), and the vehicle body suspension reinforcement plate (9) abuts against the outer surface of the water tank vertical plate (3).

9. A cabin roof beam assembly structure according to any one of claims 1 to 8, wherein The front wheel cover upper reinforcement beam outer plate (1), the front wheel cover front connecting plate (2) and the water tank vertical plate (3) are all processed by an inner high-pressure forming process.

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