Cross beam structure, frame assembly and vehicle

Abstract

The utility model discloses a cross beam structure, a frame assembly and a vehicle, the cross beam structure comprises a main beam body, the main beam body extends in the width direction of the vehicle, and a cavity is formed in the main beam body; the first reinforcing plate is arranged in the cavity, and the first reinforcing plate is fixed to the lower wall, in the height direction, of the cavity; the second reinforcing plate is arranged in the cavity, the lower side of the second reinforcing plate is fixed to the upper side of the first reinforcing plate, and the upper side of the second reinforcing plate is fixed to the upper wall of the cavity in the height direction. Wherein the first reinforcing plate is fixedly connected with the lower side of the main beam body, the structural strength and rigidity of the main beam body are improved, the second reinforcing plate is connected between the first reinforcing plate and the upper wall of the main beam body, and the structural strength of the main beam body is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a crossbeam structure, a frame assembly and a vehicle. Background Art

[0002] The rear cross beam of a traditional frame is generally a welded structure of upper and lower plates. The front side is connected to the rear coil spring support, the two sides are connected to the frame longitudinal beams, and the lower right side is connected to the tie rod support. It mainly bears the torsional effect of the frame, is less affected by the movement force of the surrounding suspension components, and has a simple structure.

[0003] In the related technologies, the rear crossbeam of the frame mainly bears the torsion of the frame and is less affected by the movement force of the surrounding suspension components. When the new layout power form is adopted and the force is too large, the current structure cannot meet the load influence brought by the surrounding parts, and it is easy to cause strength and durability problems such as cracking:

[0004] a. The new layout structure: The electric bridge is arranged at the front side of the crossbeam and connected to the frame crossbeam through the suspension. The two rear suspensions are closely arranged in the middle of the frame crossbeam without connection. The distance between the two suspensions is too small. When subjected to the output torque of the electric bridge, the suspensions on both sides will generate excessive loads on the sheet metal structure of the middle crossbeam, causing excessive stress.

[0005] b. The output torque of the electric bridge is too large compared to the traditional bridge, which causes the force transmitted to the crossbeam to increase linearly compared to traditional models. However, the frame is only welded by the traditional upper and lower plates, which cannot effectively disperse the stress. Utility Model Content

[0006] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a crossbeam structure, wherein a first reinforcing plate is fixedly connected to the lower side of the main beam body to improve the structural strength and rigidity of the main beam body, and a second reinforcing plate is connected between the first reinforcing plate and the upper wall of the main beam body to further improve the structural strength of the main beam body.

[0007] The utility model also provides a vehicle frame structure.

[0008] The utility model further provides a vehicle.

[0009] The crossbeam structure according to the first aspect of the utility model embodiment includes: a main beam body, which extends in the width direction of the vehicle and forms a cavity inside the main beam body; a first reinforcing plate, which is arranged in the cavity and fixed to the lower wall of the cavity in the height direction; and a second reinforcing plate, which is arranged in the cavity and has a lower side fixed to an upper side of the first reinforcing plate and an upper side fixed to an upper wall of the cavity in the height direction.

[0010] According to the crossbeam structure of the embodiment of the utility model, the first reinforcement plate is fixedly connected to the lower side of the main beam body to improve the structural strength and rigidity of the main beam body, and the second reinforcement plate is connected between the first reinforcement plate and the upper wall of the main beam body to further improve the structural strength of the main beam body.

[0011] According to some embodiments of the utility model, a plurality of first mounting holes and a plurality of second mounting holes are provided at intervals on the lower side of the main beam body, and a plurality of third mounting holes and a fourth mounting holes are provided at intervals on the first reinforcing plate, the plurality of first mounting holes and the plurality of third mounting holes correspond one-to-one, the plurality of second mounting holes and the plurality of fourth mounting holes correspond one-to-one, and the first mounting holes, the second mounting holes, the third mounting holes and the fourth mounting holes are used for installing suspension.

[0012] According to some embodiments of the present invention, the second reinforcing plate includes: a top plate and two connecting plates, the two connecting plates are arranged on both sides of the top plate in the width direction of the vehicle, and the projection of the top plate on the first reinforcing plate covers the plurality of third mounting holes and the plurality of fourth mounting holes.

[0013] According to some embodiments of the utility model, the second reinforcing plate also includes: two first flange plates, the first flange plate is arranged on the side of the connecting plate away from the top plate, the first flange plate and the first reinforcing plate are fixedly connected, and the angle between the connecting plate and the top plate is an obtuse angle.

[0014] According to some embodiments of the utility model, the main beam body includes: a first plate body and a second plate body, the first plate body is arranged below the second plate body and the first plate body and the second plate body are interlocked with each other, and the first plate body is provided with a first arch arched upward.

[0015] According to some embodiments of the present invention, a second arch that arches upward is provided on the first reinforcing plate, the first arch and the second arch have the same shape, and at least two weight-reducing holes are provided on the second arch.

[0016] According to some embodiments of the utility model, the first plate body is provided with a first inner wall and a second inner wall on both sides in the length direction of the vehicle, and the first reinforcing plate is provided with a first flange and a second flange on both sides in the length direction of the vehicle, the first flange is connected to the first inner wall, and the second flange is connected to the second inner wall.

[0017] According to some embodiments of the utility model, a plurality of first positioning holes are provided on the lower side of the main beam body, a plurality of second positioning holes are provided on the first reinforcing plate, the plurality of first positioning holes and the plurality of second positioning holes correspond one to one, and the first positioning holes and the second positioning holes are used for suspension positioning installation.

[0018] The vehicle frame assembly according to the embodiment of the second aspect of the utility model includes: the crossbeam structure.

[0019] The vehicle according to the second embodiment of the utility model includes: the frame assembly.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0022] Figure 1 It is a structural schematic diagram of a frame assembly according to an embodiment of the utility model;

[0023] Figure 2 is a rear view of a frame assembly according to an embodiment of the utility model;

[0024] Figure 3 It is a structural schematic diagram of the crossbeam structure according to an embodiment of the utility model;

[0025] Figure 4 The explosion of the beam structure according to the embodiment of the utility model Figure 1 ;

[0026] Figure 5 The explosion of the beam structure according to the embodiment of the utility model Figure 2 ;

[0027] Figure 6 It is a structural schematic diagram of the first plate body and the first reinforcing plate according to an embodiment of the utility model.

[0028] Reference numerals:

[0029] 100. Frame assembly;

[0030] 10. Beam structure; 11. Main beam body; 111. First mounting hole; 112. Second mounting hole; 113. First plate body; 114. Second plate body; 115. First arch; 12. First reinforcing plate; 121. Third mounting hole; 122. Fourth mounting hole; 123. Second arch; 124. First flange; 125. Second flange; 13. Second reinforcing plate; 131. Top plate; 132. Connecting plate; 133. First flange plate; 14. Cavity; 15. First inner wall; 16. Second inner wall;

[0031] 20. Longitudinal beam. DETAILED DESCRIPTION

[0032] The embodiments of the present utility model are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present utility model are described in detail below.

[0033] Reference below Figure 1-Figure 6 A cross beam structure 10 according to an embodiment of the present invention is described, a vehicle frame assembly 100 including the cross beam structure 10 is also proposed, and a vehicle including the vehicle frame assembly 100 is further proposed.

[0034] like Figure 3 and Figure 4 As shown, the cross beam structure 10 includes: a main beam body 11, a first reinforcement plate 12 and a second reinforcement plate 13. The main beam body 11 extends in the width direction of the vehicle, and a cavity 14 is formed inside the main beam body 11. In other words, the length direction of the vehicle is the front-to-back direction of the vehicle; the width direction of the vehicle is the left-to-right direction of the vehicle, and the main beam body 11 extends along the left-to-right direction of the vehicle. The two ends of the main beam body 11 in the width direction of the vehicle are respectively connected to the two frame longitudinal beams 20 on the corresponding sides, and the lower surface of the main beam body 11 provides a mounting point for the electric bridge suspension, that is, the lower side of the main beam body 11 is fixedly connected to the electric bridge suspension, connecting the electric bridge with the cross beam structure 10.

[0035] Combination Figure 3-Figure 5 As shown, the first reinforcing plate 12 is arranged in the cavity 14, and the first reinforcing plate 12 is fixed to the lower wall of the cavity 14 in the height direction. Specifically, the height direction of the vehicle is the up-down direction, and the lower wall of the cavity 14 in the height direction is the inner wall below the main beam 11. There are two bridge suspensions, and the two bridge suspensions are arranged at intervals along the width direction of the vehicle. The spacing between the two bridge suspensions is too small. When subjected to the output torque of the bridge, both bridge suspensions generate excessive loads on the middle part of the main beam 11, causing excessive stress. The first reinforcing plate 12 is arranged in the cavity 14, and the first reinforcing plate 12 is connected to the inner wall below the main beam 11. The projection of the first reinforcing plate 12 on the lower wall of the main beam 11 completely covers the two bridge suspensions. The first reinforcing plate 12 is fixedly connected to the lower side of the main beam 11, thereby improving the structural strength and rigidity of the lower side of the main beam 11, that is, improving the structural strength of the installation point of the bridge suspension, and avoiding the fracture phenomenon at the connection between the main beam 11 and the bridge suspension.

[0036] Further, the second reinforcing plate 13 is arranged in the cavity 14, the lower side of the second reinforcing plate 13 is fixed to the upper side of the first reinforcing plate 12, and the upper side is fixed to the upper wall of the cavity 14 in the height direction. Specifically, the main beam body 11 is also provided with a second reinforcing plate 13, the lower side of the second reinforcing plate 13 is connected to the first reinforcing plate 12, and the upper side of the second reinforcing plate 13 is in contact with the upper wall of the cavity 14 in the height direction, that is, the upper side of the second reinforcing plate 13 is in contact with the inner wall of the upper side of the main beam body 11, and the upper side of the second reinforcing plate 13 is fixedly connected to the upper wall of the cavity 14, the second reinforcing plate 13 is connected between the first reinforcing plate 12 and the upper wall of the cavity 14, and the second reinforcing plate 13 is located in the middle of the cavity 14 in the width direction, further improving the structural rigidity and strength of the middle part of the main beam body 11.

[0037] Therefore, the first reinforcing plate 12 is fixedly connected to the lower side of the main beam body 11, thereby improving the structural strength and rigidity of the main beam body 11. The second reinforcing plate 13 is connected between the first reinforcing plate 12 and the upper wall of the main beam body 11, thereby further improving the structural strength of the main beam body 11 and avoiding breakage at the position where the cross beam structure 10 is installed for the electric bridge suspension.

[0038] like Figure 4 As shown, the lower side of the main beam body 11 is provided with a plurality of first mounting holes 111 and a plurality of second mounting holes 112 spaced apart from each other, and the first reinforcing plate 12 is provided with a plurality of third mounting holes 121 and a fourth mounting hole 122 spaced apart from each other, and the plurality of first mounting holes 111 and the plurality of third mounting holes 121 correspond one to one, and the plurality of second mounting holes 112 and the plurality of fourth mounting holes 122 correspond one to one, and the first mounting holes 111, the second mounting holes 112, the third mounting holes 121 and the fourth mounting holes 122 are used to install the suspension. Specifically, the suspension is an electric bridge suspension, and there are two electric bridge suspensions. In the width direction of the vehicle, the plurality of first mounting holes 111 and the plurality of second mounting holes 112 are respectively provided on both sides of the center line of the lower side of the main beam body 11, and the plurality of third mounting holes 121 and the plurality of fourth mounting holes 122 are provided on both sides of the center line of the first reinforcing plate 12. The positions of the multiple first mounting holes 111 and the multiple third mounting holes 121 correspond one to one for mounting one of the bridge suspensions; the positions of the multiple second mounting holes 112 and the multiple fourth mounting holes 122 correspond one to one for mounting the other bridge suspension.

[0039] In some embodiments, the beam structure 10 also includes: a first fastener and a second fastener, wherein there may be multiple first fasteners, multiple first fasteners pass through one of the bridge suspensions, multiple first mounting holes 111 and third mounting holes 121 to be fixedly connected to the first reinforcing plate 12, so that one of the bridge suspensions is fixed on the beam structure 10; there may be multiple second fasteners, multiple second fasteners pass through another bridge suspension, multiple second mounting holes 112 and fourth mounting holes 122 to be fixedly connected to the first reinforcing plate 12, so that the other bridge suspension is fixed on the beam structure 10, thereby completing the installation of the bridge suspension and the beam structure 10.

[0040] like Figure 5 and Figure 6 As shown, the second reinforcing plate 13 includes: a top plate 131, two connecting plates 132, the two connecting plates 132 are arranged on both sides of the top plate 131 in the width direction of the vehicle, and the projection of the top plate 131 on the first reinforcing plate 12 covers a plurality of third mounting holes 121 and a plurality of fourth mounting holes 122. Specifically, in the width direction of the vehicle, the two connecting plates 132 are located on both sides of the top plate 131, the two sides of the top plate 131 are fixedly connected to the two connecting plates 132, the top plate 131 is connected to the upper wall of the cavity 14, the lower sides of the two connecting plates 132 are fixedly connected to the first reinforcing plate 12, the projection of the top plate 131 on the first reinforcing plate 12 covers a plurality of third mounting holes 121 and a plurality of fourth mounting holes 122, the third mounting holes 121 and the fourth mounting holes 122 are respectively used to install the bridge suspension, and the second reinforcing plate 13 can improve the structural rigidity and strength of the middle part of the main beam body 11.

[0041] Furthermore, the second reinforcing plate 13 also includes: two first flange plates 133, the first flange plates 133 are arranged on the side of the connecting plate 132 away from the top plate 131, and the first flange plates 133 are fixedly connected to the first reinforcing plate 12. Specifically, the first flange plates 133 are arranged on the side of the connecting plate 132 away from the top plate 131, that is, one of the connecting plates 132 is connected between one of the first flange plates 133 and one end of the top plate 131, and the other connecting plate 132 is connected between the other first flange plate 133 and the other end of the top plate 131, the first flange plate 133 is fixedly connected to the first reinforcing plate 12, and the second reinforcing plate 13 is fixedly connected to the first reinforcing plate 12 through the first flange plates 133, so that the second reinforcing plate 13 is connected between the inner wall of the upper side of the main beam body 11 and the first reinforcing plate 12.

[0042] In some embodiments, the angle between the connecting plate 132 and the top plate 131 is an obtuse angle. The angle formed between the connecting plate 132 and the top plate 131 is an obtuse angle, which transfers the stress on the second reinforcing plate 13 to both sides of the main beam body 11, avoiding the phenomenon of cross beam fracture caused by local stress concentration.

[0043] Reference Figure 2-Figure 6 As shown, the main beam body 11 includes: a first plate body 113 and a second plate body 114, the first plate body 113 is arranged below the second plate body 114, and the first plate body 113 and the second plate body 114 are buckled with each other. Specifically, the first plate body 113 is located below the second plate body 114, the second plate body 114 is buckled on the first plate body 113, and the second plate body 114 is fixedly connected to the first plate body 113 to form a cavity 14 between the first plate body 113 and the second plate body 114. The first reinforcing plate 12 is connected to the upper surface of the first plate body 113, and the first mounting hole 111 and the second mounting hole 112 are provided on the first plate body 113. The bridge suspension is fixedly connected to the lower surface of the first plate body 113; the second reinforcing plate 13 is connected between the inner wall of the second plate body 114 and the first reinforcing plate 12, and the second reinforcing plate 13 is fixedly connected to the second plate body 114. The second reinforcing plate 13 further connects the first plate body 113, the first reinforcing plate 12 and the second plate body 114, so as to improve the integrity of the beam structure 10.

[0044] like Figure 2 and Figure 6 As shown, the first plate 113 is provided with a first arch 115 that arches upward. The first plate 113 is provided with a first arch 115, and in the height direction, part of the bridge suspension overlaps with the first arch 115, and the first arch 115 arches upward. The first arch 115 is located in the middle of the main beam body 11 to avoid other components.

[0045] Furthermore, the first reinforcing plate 12 is provided with a second arch 123 that arches upward, the first arch 115 and the second arch 123 are of the same shape, and at least two weight-reducing holes are provided on the second arch 123. Specifically, the second arch 123 corresponds to the first arch 115, the second arch 123 arches upward, and the second arch 123 fits with the first arch 115, so that the first reinforcing plate 12 fits with the first plate body 113, thereby improving the connection strength between the first reinforcing plate 12 and the first plate body 113. The second arch 123 is provided with at least two weight-reducing holes, which reduces the weight while ensuring the structural strength of the first reinforcing plate 12, thereby ensuring the lightweight of the vehicle.

[0046] Combination Figure 4 and Figure 5As shown, the first plate body 113 is provided with a first inner wall 15 and a second inner wall 16 on both sides in the length direction of the vehicle, and the first reinforcing plate 12 is provided with a first flange 124 and a second flange 125 on both sides in the length direction of the vehicle, the first flange 124 is connected to the first inner wall 15, and the second flange 125 is connected to the second inner wall 16. Specifically, the first inner wall 15 and the second inner wall 16 are arranged at intervals on the first plate body 113 along the length direction of the vehicle, and the first flange 124 and the second flange 125 are arranged at intervals on the first reinforcing plate 12 along the length direction of the vehicle. The first flange 124 is fitted with and fixedly connected to the first inner wall 15, thereby increasing the contact area between the first reinforcing plate 12 and the first plate body 113; the second flange 125 is fitted with and fixedly connected to the second inner wall 16, thereby increasing the contact area between the first reinforcing plate 12 and the first plate body 113, thereby improving the connection strength between the first reinforcing plate 12 and the first plate body 113, that is, improving the connection strength between the first reinforcing plate 12 and the main beam body 11, thereby ensuring the overall modal performance of the crossbeam structure 10.

[0047] In some embodiments, a plurality of first positioning holes are provided on the lower side of the main beam body 11, and a plurality of second positioning holes are provided on the first reinforcing plate 12. The plurality of first positioning holes and the plurality of second positioning holes correspond to each other one by one, and the first positioning holes and the second positioning holes are used for positioning installation of the suspension. Specifically, a plurality of first positioning holes are provided on the lower side of the main beam body 11, and a plurality of second positioning holes are provided on the first reinforcing plate 12. The plurality of first positioning holes and the plurality of second positioning holes are used to provide positioning for the installation process of the electric bridge suspension, thereby improving the efficiency and accuracy of the installation of the electric bridge suspension.

[0048] The vehicle frame assembly 100 according to the second embodiment of the utility model comprises: a crossbeam structure 10 and a longitudinal beam 20. In the width direction, the two ends of the crossbeam structure 10 are fixedly connected to the two longitudinal beams 20 on the corresponding sides. A first reinforcing plate 12 and a second reinforcing plate 13 are arranged in the main beam body 11. The first reinforcing plate 12 is fixedly connected to the lower side of the main beam body 11 to improve the structural strength and rigidity of the main beam body 11. The second reinforcing plate 13 is connected between the first reinforcing plate 12 and the upper wall of the main beam body 11 to further improve the structural strength of the main beam body 11 and avoid fracture at the position where the crossbeam structure 10 is installed with the bridge suspension.

[0049] The vehicle according to the second embodiment of the utility model includes: a frame assembly 100 .

[0050] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0051] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0052] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A beam structure, characterized in that: include: A main beam body (11), the main beam body (11) extending in the width direction of the vehicle, and a cavity (14) formed inside the main beam body (11); A first reinforcing plate (12), the first reinforcing plate (12) being arranged in the cavity (14), the first reinforcing plate (12) being fixed to a lower wall of the cavity (14) in a height direction; A second reinforcing plate (13), the second reinforcing plate (13) is arranged in the cavity (14), the lower side of the second reinforcing plate (13) is fixed to the upper side of the first reinforcing plate (12) and the upper side is fixed to the upper wall of the cavity (14) in the height direction.

2. The crossbeam structure according to claim 1, characterized in that: The lower side of the main beam body (11) is provided with a plurality of first mounting holes (111) and a plurality of second mounting holes (112) spaced apart from each other, and the first reinforcing plate (12) is provided with a plurality of third mounting holes (121) and a fourth mounting hole (122) spaced apart from each other, the plurality of first mounting holes (111) and the plurality of third mounting holes (121) correspond one-to-one, the plurality of second mounting holes (112) and the plurality of fourth mounting holes (122) correspond one-to-one, and the first mounting holes (111), the second mounting holes (112), the third mounting holes (121) and the fourth mounting holes (122) are used for mounting suspension.

3. The crossbeam structure according to claim 2, characterized in that: The second reinforcing plate (13) comprises: a top plate (131) and two connecting plates (132), wherein the two connecting plates (132) are arranged on both sides of the top plate (131) in the width direction of the vehicle, and the projection of the top plate (131) on the first reinforcing plate (12) covers the plurality of third mounting holes (121) and the plurality of fourth mounting holes (122).

4. The crossbeam structure according to claim 3, characterized in that: The second reinforcing plate (13) further comprises: two first flange plates (133), wherein the first flange plates (133) are arranged on a side of the connecting plate (132) away from the top plate (131), the first flange plates (133) and the first reinforcing plate (12) are fixedly connected, and the angle between the connecting plate (132) and the top plate (131) is an obtuse angle.

5. The crossbeam structure according to claim 1, characterized in that: The main beam body (11) comprises: a first plate body (113) and a second plate body (114); the first plate body (113) is arranged below the second plate body (114) and the first plate body (113) and the second plate body (114) are interlocked; the first plate body (113) is provided with a first arch (115) arched upward.

6. The crossbeam structure according to claim 5, characterized in that: The first reinforcing plate (12) is provided with a second arch (123) arched upward, the first arch (115) and the second arch (123) are of the same shape, and the second arch (123) is provided with at least two weight-reducing holes.

7. The crossbeam structure according to claim 5, characterized in that: The first plate body (113) is provided with a first inner wall (15) and a second inner wall (16) on both sides in the length direction of the vehicle, and the first reinforcing plate (12) is provided with a first flange (124) and a second flange (125) on both sides in the length direction of the vehicle, the first flange (124) is connected to the first inner wall (15), and the second flange (125) is connected to the second inner wall (16).

8. The beam structure according to claim 1, characterized in that: A plurality of first positioning holes are arranged on the lower side of the main beam body (11), and a plurality of second positioning holes are arranged on the first reinforcing plate (12). The plurality of first positioning holes and the plurality of second positioning holes correspond one to one, and the first positioning holes and the second positioning holes are used for positioning and installing the suspension.

9. A vehicle frame assembly, characterized in that: include: The crossbeam structure (10) as claimed in any one of claims 1 to 8.

10. A vehicle, characterized in that: include: The vehicle frame assembly as claimed in claim 9.

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