Heavy-load type electric vehicle frame

Abstract

The utility model provides a heavy-duty electric vehicle frame and relates to the technical field of vehicle frame structures, a vehicle body main body comprises two groups of side beam frames, a plurality of groups of side beam connecting frames, a connecting support plate and a vehicle head beam, the two groups of side beam frames are correspondingly arranged in parallel, and the side beam connecting frames are connected between the side beam frames. The connecting supporting plate and the side beam frame are connected between the side beam connecting frames in parallel; the two groups of headstock beams are welded at the front end of the side beam frame up and down; by designing a complex vehicle body main body structure comprising a side beam frame, a side beam connecting frame, a connecting supporting plate and a vehicle head beam and a pipe body welded in the side beam, the overall strength and stability of the vehicle frame are effectively improved, loads can be better dispersed, and the bearing capacity and protection performance of the vehicle frame are improved; the front wheel support is connected with the vehicle head beam in an inserted mode through the clamping groove and the passing groove and is fixed and welded through the bolts, and the connection strength and stability between the front wheel support and the vehicle body are remarkably enhanced through the composite connection mode.

Description

Technical Field

[0001] This utility model relates to the field of vehicle frame technology, and in particular to a heavy-duty electric vehicle frame. Background Technology

[0002] Current heavy-duty electric vehicle frames mainly consist of a main body support, a front wheel support, and a rear wheel support. Firstly, the main body not only carries the rider and cargo but also houses the battery and other electronic equipment. However, the current main body structure suffers from insufficient strength, making it difficult to effectively distribute and bear the load, resulting in poor overall protection. Secondly, while existing designs use welding to fix the front wheel support, because the front wheel support is nearly perpendicular to the main body, this welding connection, although structurally simple, has relatively poor stability. It cannot guarantee that the front wheel support will not bend or break in a collision during long-term use.

[0003] Therefore, improving the design of the frame, strengthening the structural strength of the main body, improving the overall safety and stability, and optimizing the connection between the front wheel bracket and the main body have become urgent problems to be solved. Thus, we propose a heavy-duty electric vehicle frame. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a vehicle body support structure that better distributes loads, enhances structural strength, and improves protective performance. Simultaneously, it is necessary to strengthen the connection strength and stability between the front wheel bracket and the vehicle body to ensure the safety and reliability of heavy-duty electric vehicles during use.

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

[0006] A heavy-duty electric vehicle frame includes a body body comprising a side beam frame, a side beam connecting frame, a connecting plate, and a front beam. The side beam frame has two sets of corresponding parallel arrangements. The side beam connecting frame has several sets of connections between the side beam frames. The connecting plate is connected parallel to the side beam frame between the side beam connecting frames. The front beam has two sets of welded vertically to the front end of the side beam frame.

[0007] The side beam frame consists of two side beams, upper and lower, and several connecting seats, with the several connecting seats located between the two side beams;

[0008] The side beam connecting frame consists of upper and lower connecting frames and a grid connecting brace, with the grid connecting brace located between the two connecting frames.

[0009] The lower front beam has a snap-fit ​​groove, and the upper front beam has a through groove. A front wheel bracket is inserted into the snap-fit ​​groove and the through groove. The front wheel bracket is bolted into the snap-fit ​​groove and the through groove and welded together.

[0010] Furthermore, a tube is welded inside the side beam, and the tube has two sets of snap-fit ​​connections welded inside the side beam.

[0011] Furthermore, the number of connecting seats is the same as that of the upper and lower connecting frames, and each group is adjacent to the other.

[0012] Furthermore, the grid connecting support is welded between the upper and lower connecting frames, and the connecting frame is welded between the lower side beam frames.

[0013] Furthermore, a lower bolt hole is provided at the bottom of the snap-fit ​​groove, and a side bolt hole is provided on the outside of the groove.

[0014] Furthermore, mounting holes are provided on the bottom and side of the front wheel bracket, corresponding to the lower bolt holes and side bolt holes.

[0015] Furthermore, there are three sets of corresponding snap-fit ​​slots and through slots. The front wheel brackets are joined together at the front end of the vehicle, and the bottom slits are sequentially connected to the through slots and snap-fit ​​slots.

[0016] Furthermore, the width of the connecting tray is the same as the spacing between adjacent side beams.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. By designing a complex main body structure including side beams, side beam connecting frames, connecting plates, and front beams, as well as welded tubes inside the side beams, the overall strength and stability of the frame are effectively improved, the load is better distributed, and the load-bearing capacity and protection performance of the frame are enhanced.

[0019] 2. The front wheel bracket is inserted into the front beam through a snap-fit ​​groove and a through groove, and is further fixed with bolts and welded. This composite connection method significantly enhances the connection strength and stability between the front wheel bracket and the vehicle body, effectively avoiding the bending or breakage problems that may occur in the front wheel bracket during long-term use, and improving the safety and reliability of the electric vehicle.

[0020] 3. The side beam connecting frame consists of upper and lower connecting frames and grille connecting supports. This design not only increases the longitudinal and lateral strength of the frame, but also provides better structural support, enabling the frame to remain stable when facing complex road conditions. Attached Figure Description

[0021] Figure 1 A schematic diagram of the overall structure of a heavy-duty electric vehicle frame provided by this utility model;

[0022] Figure 2 A schematic diagram showing the overall structure of a heavy-duty electric vehicle frame provided by this utility model;

[0023] Figure 3 A schematic diagram of the side beam structure of a heavy-duty electric vehicle frame provided by this utility model;

[0024] Figure 4 This utility model provides an anatomical diagram of the front wheel bracket mounting structure of a heavy-duty electric vehicle frame.

[0025] Legend: 1. Side beam frame; 11. Side beam; 111. Pipe body; 12. Connecting seat;

[0026] 2. Side beam connecting frame; 21. Connecting frame; 22. Grille connecting support;

[0027] 3. Connecting tray;

[0028] 4. Front beam; 41. Clip-on groove; 411. Lower bolt hole; 42. Through groove; 421. Side bolt hole;

[0029] 5. Front wheel bracket; 51. Mounting hole. Detailed Implementation

[0030] The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the embodiments of this utility model.

[0031] Example 1

[0032] like Figure 1-4 As shown in the figure, this embodiment details the specific structure of a heavy-duty electric vehicle frame: the main body of the frame is composed of side beams 1, side beam connecting frames 2, connecting plates 3, and front beams 4. There are two sets of side beams 1, which are arranged in parallel and opposite directions, providing the main support structure for the frame. There are several sets of side beam connecting frames 2, which are connected between the two sets of side beams 1, enhancing the lateral stability of the frame. The connecting plates 3 are parallel to the side beams 1 and are connected between the side beam connecting frames 2, further enhancing the overall strength of the frame. There are two sets of front beams 4, which are welded to the front end of the side beams 1 respectively, providing a foundation for the installation of the front wheel brackets 5.

[0033] The side beam frame 1 consists of two side beams 11 and several connecting seats 12. The connecting seats 12 are located between the two side beams 11 and provide connection points for the installation of other components. The side beam connecting frame 2 consists of two layers of connecting frames 21 and a grid connecting support 22. The grid connecting support 22 is located between the two layers of connecting frames 21, forming a sturdy frame structure, and is used for battery installation.

[0034] The lower front beam 4 has a snap-fit ​​groove 41, and the upper front beam 4 has a through groove 42. The front wheel bracket 5 is inserted into these grooves and is connected to the front beam 4 as a whole by bolts and welding, ensuring the stability and safety of the front wheel bracket 5.

[0035] Example 2

[0036] Based on Example 1, this example further refines the structural details of the frame:

[0037] The side beam 11 has two sets of tubes 111 welded inside it. These tubes 111 are snapped together and welded inside the side beam 11, which further enhances the strength and rigidity of the side beam 11. The number of connecting seats 12 is the same as that of the upper and lower connecting frames 21, and each set is adjacent to each other, ensuring uniform support of the frame.

[0038] The grille connecting support 22 is welded between the upper and lower connecting frames 21, and the connecting frame 21 is welded between the lower side beam frame 1. This design gives the frame good strength and stability in both the longitudinal and lateral directions.

[0039] A lower bolt hole 411 is provided at the bottom of the snap-fit ​​groove 41, and a side bolt hole 421 is provided on the outside of the groove 42. Mounting holes 51 are provided on the bottom and side of the front wheel bracket 5 corresponding to these bolt holes, so that the front wheel bracket 5 can be fixed to the front beam 4 by bolts and nuts, and the connection strength can be further enhanced by welding.

[0040] There are three sets of corresponding slots 41 and through slots 42. The front wheel bracket 5 is joined at the front end of the vehicle and has a slit at the bottom. All of them are connected in sequence in the through slots 42 to the slots 41. This design not only makes the installation of the front wheel bracket 5 more stable.

[0041] The width of the connecting plate 3 is the same as the spacing between the adjacent side beams 1. This design ensures that the connecting plate 3 can be tightly connected between the side beam connecting frames 2, guaranteeing its own width and further enhancing the overall strength of the frame.

[0042] Workflow: In the production of this heavy-duty electric vehicle frame, the front wheel bracket 5 is inserted into the snap-fit ​​groove 41 and through groove 42 of the head beam 4, and then fixed in place with bolts and nuts. Next, welding is performed to connect the front wheel bracket 5 and the head beam 4 into one unit. After these steps are completed, other components of the electric vehicle are installed (the rear wheel bracket is integrated at the rear end of the side beam 1 using the existing frame structure). In subsequent long-term use, due to the excellent strength and stability of this frame, the safety and comfort of the rider can be ensured.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A heavy-duty electric vehicle frame, characterized in that: The main body of the vehicle includes a side beam frame (1), a side beam connecting frame (2), a connecting plate (3), and a front beam (4). The side beam frame (1) has two sets of corresponding parallel arrangements. The side beam connecting frame (2) has several sets connected between the side beam frames (1). The connecting plate (3) is connected to the side beam frame (1) in parallel between the side beam connecting frame (2). The front beam (4) has two sets welded to the front end of the side beam frame (1). The side beam frame (1) consists of two side beams (11) and several connecting seats (12), with the several connecting seats (12) located between the two side beams (11); The side beam connecting frame (2) consists of two layers of connecting frames (21) and a grid connecting support (22), with the grid connecting support (22) located between the two layers of connecting frames (21); The lower front beam (4) has a snap-fit ​​groove (41), and the upper front beam (4) has a through groove (42). A front wheel bracket (5) is inserted into the snap-fit ​​groove (41) and the through groove (42). The front wheel bracket (5) is bolted into the snap-fit ​​groove (41) and the through groove (42) and welded together.

2. The heavy-duty electric vehicle frame according to claim 1, characterized in that: The side beam (11) is welded with a tube body (111), and the tube body (111) has two sets of snap-fit ​​connections and is welded inside the side beam (11).

3. The heavy-duty electric vehicle frame according to claim 1, characterized in that: The number of connecting seats (12) is the same as that of the upper and lower connecting frames (21), and each group is adjacent to the other.

4. The heavy-duty electric vehicle frame according to claim 1, characterized in that: The grid connecting support (22) is welded between the upper and lower connecting frames (21), and the connecting frame (21) is welded between the lower side beam frame (1).

5. The heavy-duty electric vehicle frame according to claim 1, characterized in that: The bottom of the snap-fit ​​groove (41) is provided with a lower bolt hole (411), and the outside of the through groove (42) is provided with a side bolt hole (421).

6. The heavy-duty electric vehicle frame according to claim 5, characterized in that: The front wheel bracket (5) has mounting holes (51) on its bottom and side corresponding to the lower bolt holes (411) and side bolt holes (421).

7. The heavy-duty electric vehicle frame according to claim 1, characterized in that: The number of the corresponding slots (41) and through slots (42) is three sets. The front wheel bracket (5) is joined at the front end of the vehicle, and the bottom slits are sequentially connected to the through slots (42) to the slots (41).

8. The heavy-duty electric vehicle frame according to claim 1, characterized in that: The width of the connecting plate (3) is the same as the spacing between the adjacent side beams (1).

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