Flexible rear axle mechanism

Abstract

The utility model discloses a flexible rear axle mechanism, which relates to the technical field of vehicle rear axles, and is characterized in that when a vehicle is on a flat road, the distance between two cross beams is enabled to be maximum, and then a limiting block is driven by a driving piece to slide, so that the limiting block moves towards one side close to a middle piece; the first limiting end face is attached to the second limiting end face, the first cross beam is limited to rotate relative to the middle piece, the two cross beams are kept in the maximum distance state, the distance between the two cross beams is not changed, and the vehicle enters a stable mode; on a bumpy or easily-slippery road surface, the driving piece drives the limiting block to slide, so that the first limiting end face is separated from the second limiting end face; the first cross beam can rotate relative to the middle part, and when the tires mounted on the mounting plate are bumpy or slip, the two cross beams swing relatively, so that the bumpy degree of a vehicle is reduced, the slip condition of the vehicle is reduced, and the driving safety is improved.

Description

Technical Field

[0001] This utility model relates to the field of vehicle rear axle technology, specifically a flexible rear axle mechanism. Background Technology

[0002] The rear axle of a vehicle is located at the rear of the vehicle and serves as a bracket for mounting the two rear wheels.

[0003] In existing technologies, some rear axles use two crossbeams that are rotated and mounted on the middle component, with the two rear wheels placed at both ends of the two crossbeams. This allows the two crossbeams to make adaptive adjustments (changing the distance between the two crossbeams) when the electric vehicle slips, thereby reducing the occurrence of slippage (anti-skid mode) and improving driving safety.

[0004] While the aforementioned rear axle structure can reduce vehicle slippage by adjusting the crossbeam spacing, the vehicle is not stable enough when riding on a flat road surface because the crossbeam spacing is movable, which affects the riding experience.

[0005] In view of this, there is an urgent need for a flexible rear axle mechanism to solve the above problems. Utility Model Content

[0006] To address the problems existing in the prior art, this utility model solves the problem using the following technical structure.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A flexible rear axle mechanism includes: a middle component, two crossbeams, two mounting plates, a frame, and an adjustment mechanism. The two crossbeams are rotatably mounted on the top and bottom ends of the middle component, respectively, and are arranged in parallel. The two mounting plates are respectively mounted on both sides of the middle component, and are rotatably connected to the same side of the two crossbeams. The frame is mounted on one side of the middle component.

[0009] The two crossbeams are the first crossbeam and the second crossbeam, respectively;

[0010] The adjustment mechanism includes a limiting block and a driving component. The limiting block is disposed on the vehicle frame and has a first limiting end face. The first crossbeam has a second limiting end face. The direction facing the first limiting end face is opposite to the direction facing the second limiting end face. The driving component is used to drive the limiting block to slide on the vehicle frame, so that the first limiting end face is in contact with the second limiting end face or the first limiting end face is away from the second limiting end face.

[0011] When the first limiting end face is in contact with the second limiting end face, the two crossbeams are at their maximum spacing.

[0012] Both the first limiting end face and the second limiting end face are planar.

[0013] The second limiting end face is disposed on the side of the first crossbeam near the second crossbeam.

[0014] The frame is provided with a slide rail, the extension direction of which is perpendicular to the intermediate component, and the limiting block is slidably disposed on the slide rail.

[0015] A limit plate is provided on the side of the slide rail near the middle component.

[0016] The driving component includes a screw and a motor. The screw is threadedly connected to a limiting block, and the motor is mounted on the frame to drive the screw to rotate.

[0017] The driving component includes a cylinder, which is mounted on the vehicle frame, and the output end of the cylinder is connected to a limit block.

[0018] The driving component includes a spring, a dragging component, and a limiting component. The spring is mounted on the frame and is used to apply a force to the limiting block to move towards the middle component. The dragging component is connected to the limiting block, and the limiting component is used to restrict the position of the dragging component.

[0019] The dragging component can be a pull rod or a pull rope.

[0020] One side of the intermediate component is provided with a frame mounting slot.

[0021] The above-described structure of this utility model can achieve the following beneficial effects:

[0022] When the vehicle is on a smooth road, the two crossbeams are at their maximum distance. The driving component then drives the limiting block to slide, moving it closer to the center member. This causes the first limiting end face to align with the second limiting end face. The center member and mounting plate restrict the maximum distance between the two crossbeams. The limiting block, in contact with the first crossbeam, restricts its rotation relative to the center member, maintaining the two crossbeams at their maximum distance. The distance between the two crossbeams remains unchanged, putting the vehicle in a smooth mode. When on bumpy or slippery surfaces, the driving component drives the limiting block to slide, moving it away from the center member. The first limiting end face disengages from the second limiting end face, allowing the first crossbeam to rotate relative to the center member. When the tires mounted on the mounting plate encounter bumps or slippage, the two crossbeams swing relative to each other, reducing vehicle bumps and slippage, thus improving driving safety. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this embodiment;

[0024] Figure 2This is a schematic diagram of the structure of some parts in this embodiment;

[0025] Figure 3 This is a schematic diagram of the frame and adjustment mechanism in this embodiment.

[0026] In the diagram: 1. Intermediate component; 11. Frame mounting slot; 2. Crossbeam; 21. Second limiting end face; 3. Mounting plate; 4. Frame; 5. Limiting block; 51. First limiting end face; 6. Slide rail; 61. Limiting plate; 7. Screw; 8. Motor. Detailed Implementation

[0027] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention 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 invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0028] It should be noted that the terms "comprising" and "having" and any variations thereof in the specification, claims and accompanying drawings of this utility model are intended to cover non-exclusive inclusion. For example, a process, method, apparatus, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such processes, methods, products or devices.

[0029] The following is in conjunction with the appendix Figures 1-3 This application will be described in further detail.

[0030] like Figures 1-3 As shown, a flexible rear axle mechanism includes: a middle component 1, two crossbeams 2, two mounting plates 3, a frame 4, and an adjustment mechanism. The two crossbeams 2 are rotatably mounted on the top and bottom ends of the middle component 1, and the two crossbeams 2 are arranged in parallel. The two mounting plates 3 are respectively mounted on both sides of the middle component 1, and the mounting plates 3 are rotatably connected to the same side of the two crossbeams 2. The frame 4 is mounted on one side of the middle component 1.

[0031] The two crossbeams 2 are the first crossbeam and the second crossbeam, respectively;

[0032] The adjustment mechanism includes a limiting block 5 and a driving component. The limiting block 5 is disposed on the frame 4. A first limiting end face 51 is disposed on the limiting block 5, and a second limiting end face 21 is disposed on the first crossbeam. The direction facing the first limiting end face 51 is opposite to the direction facing the second limiting end face 21. The driving component is used to drive the limiting block 5 to slide on the frame 4, so that the first limiting end face 51 is in contact with the second limiting end face 21 or the first limiting end face 51 is away from the second limiting end face 21.

[0033] When the first limiting end face 51 and the second limiting end face 21 are in contact, the two crossbeams 2 are at their maximum distance.

[0034] Based on the above structure, when the vehicle is on a flat road, the two crossbeams 2 are at their maximum distance. Then, the limiting block 5 is driven to slide by the driving component, causing the limiting block 5 to move closer to the middle component 1. This causes the first limiting end face 51 to fit against the second limiting end face 21. The middle component 1 and the mounting plate 3 limit the maximum distance between the two crossbeams 2, while the limiting block 5 fits against the first crossbeam, limiting the rotation of the first crossbeam relative to the middle component 1. This maintains the two crossbeams 2 at their maximum distance, and the distance between the two crossbeams 2 remains unchanged. (It will not rotate relative to the intermediate part 1), so that the vehicle enters a smooth mode; when it is on a bumpy or slippery road surface, the limit block 5 is driven to slide by the drive component, so that the limit block 5 moves away from the intermediate part 1, and the first limit end face 51 disengages from the second limit end face 21; so that the first crossbeam can rotate relative to the intermediate part 1. When the tire mounted on the mounting plate 3 encounters bumps or slippage, the two crossbeams 2 swing relative to each other (tire tilt), reducing the degree of vehicle bumps and reducing the occurrence of vehicle slippage (anti-skid mode), and improving driving safety.

[0035] like Figure 2 and 3 As shown, both the first limiting end face 51 and the second limiting end face 21 are planar, which improves the ease of processing and facilitates the movement of the limiting block 5 to the position directly opposite the second limiting end face 21. The first limiting end face 51 can be tilted, with the tilt direction being an upward tilt from the side closer to the intermediate part 1 to the side farther away from the intermediate part 1, so that the limiting block 5 can smoothly fit against the second limiting end face 21. Furthermore, the second limiting end face 21 is located on the side of the first crossbeam close to the second crossbeam, so that the horizontal plane where the limiting block 5 is located is between the two crossbeams, which helps to reduce the volume of the device and improve the compactness of the device components.

[0036] like Figure 1 and Figure 2As shown, in order to guide and limit the movement of the limiting block 5, a slide rail 6 is provided on the frame 4. The extension direction of the slide rail 6 is perpendicular to the intermediate part 1, and the limiting block 5 is slidably disposed on the slide rail 6. Furthermore, a limiting plate 61 is provided on the side of the slide rail 6 near the intermediate part 1 to limit the stroke of the limiting block 5.

[0037] like Figures 1-3 As shown, the driving component includes a screw 7 and a motor 8. The screw 7 is threadedly connected to the limiting block 5. The motor 8 is mounted on the frame 4 and is used to drive the screw 7 to rotate. Thus, by driving the screw 7 to rotate, the limiting block 5, which is threadedly connected to the screw 7, moves linearly along the axial direction of the screw 7, thereby driving the limiting block 5 to move. Alternatively, the driving component can be a cylinder (not shown in the attached figure). The cylinder is mounted on the frame 4, and its output end is connected to the limiting block 5, driving the limiting block 5 to reciprocate. The driving component can also consist of a spring (not shown in the attached figure), a dragging component (not shown in the attached figure), and a limiting component (not shown in the attached figure). The spring is mounted on the frame 4 and is used to apply pressure to the limiting block 5 towards the middle component 1. The force of motion connects the dragging component to the limiting block 5. The limiting component is used to restrict the position of the dragging component. That is, under normal circumstances, the limiting block 5 is subjected to the elastic force of the spring, and the first limiting end face 51 is kept in contact with the second limiting end face 21. When it is necessary to switch modes, by applying a force to the dragging component, the force of the spring is overcome, and the limiting block 5 is moved away from the intermediate part 1, so that the first limiting end face 51 is disengaged from the second limiting end face 21. This allows the two crossbeams 2 to rotate relative to the intermediate part 1. The limiting component is used to restrict the position of the dragging component, so that the limiting block 5 can be kept away from the intermediate part 1. The dragging component can be a pull rod or a pull rope, and the limiting component can be a clamp or a buckle assembly to restrict the pull rod or pull rope.

[0038] Further optimizations include, for example Figure 3 As shown, in order to facilitate the installation of the frame 4, a frame mounting groove 11 is provided on one side of the intermediate part 1.

[0039] In summary, when the vehicle is on a smooth road, the two crossbeams 2 are at their maximum distance. Then, the limiting block 5 is driven to slide by the drive component, causing the limiting block 5 to move closer to the middle component 1. This allows the first limiting end face 51 to fit against the second limiting end face 21. The middle component 1 and the mounting plate 3 limit the maximum distance between the two crossbeams 2. The limiting block 5, fitted against the first crossbeam, restricts the rotation of the first crossbeam relative to the middle component 1, maintaining the two crossbeams 2 at their maximum distance. The distance between the two crossbeams 2 remains unchanged, allowing the vehicle to enter a smooth mode. When on a bumpy or slippery road surface, the limiting block 5 is driven to slide by the drive component, causing the limiting block 5 to move away from the middle component 1. The first limiting end face 51 disengages from the second limiting end face 21, allowing the first crossbeam to rotate relative to the middle component 1. When the tires mounted on the mounting plate 3 encounter bumps or slippage, the two crossbeams 2 swing relative to each other, reducing the degree of vehicle bumps and the occurrence of vehicle slippage, thus improving driving safety.

[0040] The above are merely preferred embodiments of this application, and the present invention is not limited to the above embodiments. It is understood that other improvements and variations that can be directly derived or conceived by those skilled in the art without departing from the spirit and concept of the present invention should be considered to be included within the protection scope of the present invention.

Claims

1. A flexible rear axle mechanism, characterized in that, include: The intermediate component (1), two crossbeams (2), two mounting plates (3), a frame (4), and an adjustment mechanism are provided. The two crossbeams (2) are rotatably disposed at the top and bottom of the intermediate component (1) respectively. The two crossbeams (2) are arranged in parallel. The two mounting plates (3) are respectively disposed on both sides of the intermediate component (1). The mounting plates (3) are rotatably connected to the same side of the two crossbeams (2). The frame (4) is disposed on one side of the intermediate component (1). The two crossbeams (2) are the first crossbeam and the second crossbeam, respectively; The adjustment mechanism includes a limiting block (5) and a driving member. The limiting block (5) is disposed on the frame (4). A first limiting end face (51) is disposed on the limiting block (5), and a second limiting end face (21) is disposed on the first crossbeam. The direction facing the first limiting end face (51) is opposite to the direction facing the second limiting end face (21). The driving member is used to drive the limiting block (5) to slide on the frame (4) so ​​that the first limiting end face (51) is in contact with the second limiting end face (21) or the first limiting end face (51) is away from the second limiting end face (21). When the first limiting end face (51) and the second limiting end face (21) are in contact, the two beams (2) are at their maximum distance.

2. The flexible rear axle mechanism according to claim 1, characterized in that: Both the first limiting end face (51) and the second limiting end face (21) are planar.

3. The flexible rear axle mechanism according to claim 1, characterized in that: The second limiting end face (21) is disposed on the side of the first crossbeam near the second crossbeam.

4. The flexible rear axle mechanism according to claim 1, characterized in that: The frame (4) is provided with a slide rail (6), the extension direction of the slide rail (6) is perpendicular to the intermediate part (1), and the limiting block (5) is slidably disposed on the slide rail (6).

5. A flexible rear axle mechanism according to claim 4, characterized in that: A limit plate (61) is provided on the side of the slide rail (6) near the middle part (1).

6. A flexible rear axle mechanism according to claim 4 or 5, characterized in that: The driving component includes a screw (7) and a motor (8). The screw (7) is threadedly connected to the limiting block (5). The motor (8) is mounted on the frame (4) and is used to drive the screw (7) to rotate.

7. A flexible rear axle mechanism according to any one of claims 1-4, characterized in that: The driving component includes a cylinder, which is mounted on the frame (4), and the output end of the cylinder is connected to a limiting block (5).

8. A flexible rear axle mechanism according to any one of claims 1-4, characterized in that: The drive component includes a spring, a drag member, and a limiting member. The spring is mounted on the frame (4) and is used to apply a force to the limiting block (5) to move towards the middle member (1). The drag member is connected to the limiting block (5), and the limiting member is used to limit the position of the drag member.

9. A flexible rear axle mechanism according to claim 8, characterized in that: The dragging component can be a pull rod or a pull rope.

10. A flexible rear axle mechanism according to claim 1, characterized in that: The intermediate component (1) has a frame mounting groove (11) on one side.

Images