Symmetrical structure two-way driving vehicle frame

Abstract

The utility model relates to electric automobile technical field especially relates to a symmetrical structure two -way driving vehicle frame. Its technical scheme includes: left longitudinal beam, right longitudinal beam and the front crossbeam, second crossbeam, third crossbeam, fourth crossbeam and rear crossbeam connected between both, left longitudinal beam and right longitudinal beam are same parts, the front crossbeam, second crossbeam, third crossbeam, fourth crossbeam and rear crossbeam are symmetrically arranged along the front -back direction of frame, make the frame form biaxial symmetry structure, the frame is provided with the steering front axle pin, steering rear axle pin and centering oil cylinder pin biaxial symmetry, the frame is provided with the suspension front support, suspension middle support and suspension rear support biaxial symmetry, the platform support is provided on the frame, the platform support is symmetrically arranged on the frame before and after left and right. The utility model adopts general part to combine whole frame biaxial symmetry layout, and the performance of two -way driving vehicle is completely consistent with the most simple structure and the lowest cost.

Description

Technical Field

[0001] This utility model relates to the field of electric vehicle technology, and in particular to a symmetrical bidirectional driving vehicle frame. Background Technology

[0002] In the traditional vehicle manufacturing field, the chassis is usually an asymmetrical structure designed for a single direction of travel, and the steering mechanism, transmission device and corresponding mounting points are arranged according to this fixed direction of travel.

[0003] However, for special vehicles requiring bidirectional driving capabilities, traditional asymmetrical frames reveal significant limitations. To achieve bidirectional driving, two complete steering and transmission systems are typically installed at each end of the frame. If a traditional frame is used, the longitudinal beams, cross beams, and various mounting supports on the left and right sides of the frame are usually different parts. The left and right parts need to be distinguished during design, manufacturing, warehousing, and assembly, resulting in high management costs and a high risk of errors. A large number of asymmetrical parts require different molds and separate production lines, increasing manufacturing costs. Asymmetrical reinforcement or special designs to accommodate bidirectional functions often lead to complex frame structures and increased weight, rather than a simple design based on optimal functionality.

[0004] To address this issue, we propose a symmetrical bidirectional driving vehicle frame. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a symmetrical bidirectional driving vehicle frame.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a symmetrical bidirectional driving vehicle frame, including a left longitudinal beam, a right longitudinal beam, and a front crossbeam, a second crossbeam, a third crossbeam, a fourth crossbeam, and a rear crossbeam connecting the two. The left and right longitudinal beams are identical parts. The front crossbeam, the second crossbeam, the third crossbeam, the fourth crossbeam, and the rear crossbeam are symmetrically arranged along the front-rear direction of the frame, so that the frame forms a biaxially symmetrical structure. The frame is symmetrically provided with a front steering axle pin, a rear steering axle pin, and a centering cylinder pin on two axes. The vehicle frame is symmetrically provided with a front suspension support, a middle suspension support, and a rear suspension support along two axes. The vehicle frame is equipped with platform supports, which are arranged symmetrically in the front, back, left, and right directions on the vehicle frame.

[0007] Preferably, the right longitudinal beam is a mirror-symmetrical component formed by symmetrically connecting the left longitudinal beam to the left longitudinal beam by riveting after rotating the left longitudinal beam laterally about its length direction as an axis.

[0008] Preferably, all the individual components on the frame are in even numbers and are distributed in a biaxially symmetrical manner.

[0009] Preferably, all mounting holes and connecting holes on the frame for connecting various components are in even numbers and are distributed symmetrically along two axes.

[0010] Preferably, the dual-axis symmetric structure is specifically manifested as follows: in a Cartesian coordinate system established with the geometric center of the frame as the origin, the frame exhibits mirror symmetry on both the X-axis and Y-axis, making the structural forms of the left front part and the right rear part of the frame completely identical.

[0011] Preferably, the left and right longitudinal beams are parallel U-shaped longitudinal beams with equal cross-sections, and their U-shaped openings face the inside of the frame.

[0012] Preferably, the frame is used in a pure electric bidirectional driving vehicle and provides a mounting base for dual steering mechanisms and front-to-rear symmetrical transmission devices.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model achieves maximum component commonality by designing the frame as a dual-axis symmetrical structure mirrored on the X and Y axes, and ensuring that the left and right longitudinal beams are identical parts. This includes not only large structural longitudinal beams and some cross beams, but also all mounting points and functional components. The fact that all independent parts and all mounting holes and connection holes are even in number and distributed in a dual-axis symmetrical manner is a concrete manifestation of this effect, ensuring that the vehicle has identical mechanical characteristics and handling performance in both the front and rear driving directions. Because the left and right longitudinal beams are identical, only one type of longitudinal beam part needs to be manufactured and stored during production. When riveting the frame, one longitudinal beam only needs to be rotated 180 degrees laterally around its length axis to achieve a perfect symmetrical match with the other longitudinal beam for riveting. This fundamentally avoids the management chaos and assembly errors caused by distinguishing between left and right parts in traditional manufacturing. The reduction in the number of parts directly reduces mold development costs, production line complexity, and warehousing management costs. The unified part design facilitates mass production, thereby effectively controlling costs in raw material procurement, processing, and manufacturing. The parallel, uniform cross-section U-shaped longitudinal beams used are inherently simple and easy to manufacture. Combined with the symmetrical design concept of this invention, the overall frame structure becomes simpler and more regular, facilitating the adoption of standardized and automated manufacturing processes, further ensuring the stability and reliability of product quality. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the main structure of this utility model; Figure 3 This is a top view of the structure of this utility model; Figure 4 This is a side view of the structure of this utility model.

[0015] Figure label: 1. Left longitudinal beam; 2. Front crossbeam; 3. Second crossbeam; 4. Third crossbeam; 5. Fourth crossbeam; 6. Front steering axle pin; 7. Rear steering axle pin; 8. Centering cylinder pin; 9. Front suspension support; 10. Middle suspension support; 11. Rear suspension support; 12. Platform support; 13. Right longitudinal beam; 14. Rear crossbeam. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Example 1 like Figures 1-4 As shown, the present invention proposes a symmetrical bidirectional driving vehicle frame, including a left longitudinal beam 1, a right longitudinal beam 13, and a front crossbeam 2, a second crossbeam 3, a third crossbeam 4, a fourth crossbeam 5, and a rear crossbeam 14 connecting the two. Through its unique dual-axis symmetrical layout, the frame provides a perfectly symmetrical mounting base for the two identical steering mechanisms and transmission systems at the front and rear of the vehicle, thereby ensuring that the vehicle has completely consistent performance in both driving directions.

[0018] The core load-bearing structure of the frame consists of the left longitudinal beam 1 and the right longitudinal beam 13. In order to achieve symmetry and parts commonality, the left longitudinal beam 1 and the right longitudinal beam 13 use the same parts. During assembly, the left longitudinal beam 1 can be used as the right longitudinal beam 13 by rotating it 180 degrees laterally with its length direction as the axis. They are connected by riveting to form a mirror symmetry relationship. Both of these longitudinal beams preferably adopt the parallel equal cross-section U-shaped structure with mature manufacturing process. The U-shaped opening faces the inside of the frame stably and together define the width and basic outline of the frame.

[0019] Between the left longitudinal beam 1 and the right longitudinal beam 13, there are multiple crossbeams that serve to stabilize and reinforce the vehicle. These crossbeams are arranged strictly symmetrically along the front-rear direction of the frame, including the front crossbeam 2, which is the main connecting component at the front end, the rear crossbeam 14, which is the corresponding connecting component at the rear end, and the second crossbeam 3, the third crossbeam 4, and the fourth crossbeam 5 arranged in sequence. This set of front-rear symmetrical crossbeams, together with the left-right symmetrical longitudinal beams, constitutes the robust and regular biaxially symmetrical main frame of the vehicle.

[0020] To support bidirectional steering, the chassis is equipped with steering system mounting points, including a front steering pin 6 for mounting the forward steering mechanism and a rear steering pin 7 for mounting the rear steering mechanism. At the same time, the centering cylinder pin 8 for controlling steering centering is also arranged symmetrically on two axes. The symmetrical layout of these three sets of pins is the key to ensuring that the vehicle's front and rear steering performance is completely consistent.

[0021] The suspension system of the vehicle frame is connected to the frame through a series of symmetrically arranged supports, including the front suspension support 9, the middle suspension support 10, and the rear suspension support 11. They are mounted on the main body of the frame in pairs and on two axes symmetrically to provide stable and consistent support for the front and rear axle suspensions.

[0022] Finally, platform supports 12 are provided in the middle section of the left longitudinal beam 1 and the right longitudinal beam 13. The platform supports 12 provide a flat mounting surface and are symmetrically distributed in the front, back and left and right directions on the upper surface of the entire frame. They are used to support and fix the vehicle platform or battery pack and other equipment to ensure the balance of load distribution.

[0023] The above specific embodiments are merely several preferred embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

[0024] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A symmetrical bidirectional driving vehicle frame, comprising a left longitudinal beam (1), a right longitudinal beam (13), and a front crossbeam (2), a second crossbeam (3), a third crossbeam (4), a fourth crossbeam (5), and a rear crossbeam (14) connecting the two, characterized in that: The left longitudinal beam (1) and the right longitudinal beam (13) are the same parts. The front crossbeam (2), the second crossbeam (3), the third crossbeam (4), the fourth crossbeam (5) and the rear crossbeam (14) are arranged symmetrically along the front and rear direction of the frame, so that the frame forms a double-axis symmetrical structure. The frame is symmetrically provided with a front steering axle pin (6), a rear steering axle pin (7), and a centering cylinder pin (8). The frame is symmetrically provided with a front suspension support (9), a middle suspension support (10), and a rear suspension support (11) on two axes. The vehicle frame is provided with a platform support (12), which is arranged symmetrically in the front, back and left and right directions on the vehicle frame.

2. The symmetrical bidirectional driving vehicle frame according to claim 1, characterized in that: The right longitudinal beam (13) is a mirror-symmetrical component formed by riveting the left longitudinal beam (1) after rotating it 180 degrees laterally with its length direction as the axis.

3. The symmetrical bidirectional driving vehicle frame according to claim 1, characterized in that: All individual components on the frame are in even numbers and are distributed in a biaxially symmetrical manner.

4. The symmetrical bidirectional driving vehicle frame according to claim 1, characterized in that: All mounting holes and connection holes on the frame for connecting various components are in even numbers and are distributed symmetrically along two axes.

5. The symmetrical bidirectional driving vehicle frame according to claim 1, characterized in that: The dual-axis symmetry structure is specifically manifested in the following way: in a Cartesian coordinate system established with the geometric center of the frame as the origin, the frame exhibits mirror symmetry on both the X-axis and Y-axis, making the structural forms of the left front part and the right rear part of the frame completely identical.

6. The symmetrical bidirectional driving vehicle frame according to claim 1, characterized in that: The left longitudinal beam (1) and the right longitudinal beam (13) are parallel U-shaped longitudinal beams with equal cross-sections, and their U-shaped openings face the inside of the frame.

7. The symmetrical bidirectional driving vehicle frame according to claim 1, characterized in that: The chassis is used in pure electric bidirectional driving vehicles and provides a mounting base for dual steering mechanisms and symmetrical front and rear transmission devices.

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