Sliding column type independent suspension assembly of new energy automobile

Abstract

The invention relates to the technical field of automobile suspensions, and discloses a sliding column type independent suspension assembly of a new energy automobile, which comprises a steering motor for driving a steering driven gear to rotate through a steering driving gear; the gear shaft penetrates through the middle part of the steering driven gear; the outer side of the shock absorber assembly is connected with a sliding column, and a gear is fixed outside the sliding column and used for transmitting power of a driven gear to drive the sliding column to rotate; the wheel hub is sleeved with the tire, a wheel hub motor is installed in the wheel hub, one face of a stator in the wheel hub motor is fixedly connected with a connecting arm, and the connecting arm is fixedly connected with the sliding column. A hub motor drives tires to rotate to achieve advancing of a vehicle body, a steering motor drives a sliding column to rotate through a gear set, and then the sliding column drives a connecting arm and the tires to complete steering. The tires drive the sliding columns to vertically move after being impacted by the road surface, the shock absorber assembly reduces the vibration amplitude to stabilize the vehicle body, components such as a differential mechanism, a half shaft, a steering gear and a tie rod are not needed, and therefore the suspension structure is simplified, and complexity is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile suspension, and in particular to a sliding-strut independent suspension assembly for a new energy automobile. Background Art

[0002] Existing automobile suspensions can be roughly divided into independent suspensions and non-independent suspensions. Since independent suspensions allow each wheel to bounce freely and independently, they have strong buffering and shock absorption capabilities, so most passenger cars use independent suspensions. However, independent suspensions also have complex structures and high costs. Moreover, there are contradictions in the design of traditional independent suspensions. Reducing the number of swing arms will lead to weakened control of the wheels and weakened buffering and shock absorption capabilities; increasing the number of swing arms will lead to increased mass, and there will be no significant improvement in various performance indicators. Not only that, the existing design has less integration of steering and drive, resulting in complex chassis design. With the rapid development of new energy vehicles, the design of independent suspensions has become an increasingly hot research topic, and the above-mentioned problems are also in urgent need of resolution. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a sliding-strut independent suspension assembly for new energy vehicles, which solves the problems in the prior art that the independent suspension has a complex structure, reducing the number of swing arms leads to weakened control, buffering and shock absorbing capabilities, increasing the number of swing arms does not significantly improve performance indicators, and the chassis design is complex.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: A new energy vehicle sliding column type independent suspension assembly, comprising:

[0005] A steering motor is connected to the vehicle body and drives the steering driven gear to rotate through the steering driving gear;

[0006] A gear shaft is installed on one side of the vehicle body, and the gear shaft passes through the middle of the steering driven gear;

[0007] The shock absorber assembly is installed in the vehicle body and connected to a sliding column on the outside. A gear is fixed to the outside of the sliding column to transmit the power of the driven gear to drive the sliding column to rotate;

[0008] The tire is sleeved outside the wheel hub, and a hub motor is installed inside the wheel hub. One side of the stator inside the hub motor is fixedly connected to a connecting arm, and the connecting arm is fixedly connected to a sliding column. One side of the hub motor is connected to a brake, which is used to transmit power to drive the hub motor and the tire to rotate along the sliding column as the main axis of rotation when the sliding column rotates, thereby realizing vehicle body steering.

[0009] Preferably, both ends of the gear shaft are connected to the vehicle body via bearings.

[0010] Preferably, a bearing is installed between the shock absorber assembly and the sliding column to support the sliding column to rotate along the axis of the shock absorber assembly.

[0011] Preferably, the rotor inside the hub motor is fixedly connected to the rim.

[0012] Preferably, the brake disc inside the brake is fixed to the wheel hub.

[0013] Preferably, the connecting arm is arranged in a T-shape, with one side connected to the outer wall of the sliding column and the other side connected to the hub motor, and a cable is passed through the interior of the connecting arm for supplying power to the hub motor.

[0014] The present invention provides a sliding column type independent suspension assembly for new energy vehicles, which has the following beneficial effects:

[0015] 1. The present invention can drive the tire to rotate through the wheel hub motor to make the vehicle body move forward, drive the steering motor to drive the sliding column to rotate through the steering driving gear and the steering driven gear, and use the sliding column to drive the connecting arm and the tire to rotate to achieve vehicle body steering. After the tire is impacted by the road surface, it will drive the sliding column to move in the vertical direction. At this time, the shock absorber assembly reduces the vibration amplitude to stabilize the vehicle body. Therefore, multiple independent components such as differentials, half shafts, steering gears and tie rods are not required, thereby simplifying the overall structure and structural complexity of the suspension.

[0016] 2. The present invention greatly improves the integration of the chassis by highly integrating the driving, steering, braking and suspension functions into one assembly. Due to the reduction in the number of components, the present invention not only reduces the weight of the suspension and chassis, but also significantly reduces the manufacturing cost and maintenance cost. At the same time, the simplified structural design reduces the occupied space, frees up more space for the passenger area in the car, and improves the comfort and practicality of the car. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0018] Figure 2 It is a front view of the present invention;

[0019] Figure 3 It is a left side view of the present invention;

[0020] Figure 4 A top view of the present invention;

[0021] Figure 5 It is a schematic diagram of the structure of the sliding column part of the present invention;

[0022] Figure 6 A top view of a tire of the present invention;

[0023] Figure 7 for Figure 6 AA section view in;

[0024] Figure 8 for Figure 6 BB section view in;

[0025] Fig. 9 It is a partial structural schematic diagram of a tire of the present invention.

[0026] Among them, 1. Steering motor; 2. Steering driving gear; 3. Steering driven gear; 4. Gear shaft; 5. Shock absorber assembly; 6. Sliding column; 7. Connecting arm; 8. Brake; 9. Hub motor; 10. Tire; 11. Car body. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the specification of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] In order to better understand the present invention, the above contents are described in detail below in conjunction with specific embodiments.

[0029] Please see attached Figure 1 -Attached Fig. 9 The embodiment of the present invention provides a new energy vehicle sliding column type independent suspension assembly, comprising:

[0030] A steering motor 1 is connected to the vehicle body 11 and drives the steering driven gear 3 to rotate through the steering driving gear 2;

[0031] A gear shaft 4 is mounted on one side of the vehicle body 11, and the gear shaft 4 passes through the middle of the steering driven gear 3;

[0032] The shock absorber assembly 5 is installed in the vehicle body 11 and connected to the outside of the sliding column 6. A gear is fixed to the outside of the sliding column 6 for transmitting the power of the driven gear to drive the sliding column 6 to rotate;

[0033] The tire 10 is sleeved outside the wheel hub, and a hub motor 9 is installed inside the wheel hub. One side of the stator inside the hub motor 9 is fixedly connected to the connecting arm 7, and the connecting arm 7 is fixedly connected to the sliding column 6. One side of the hub motor 9 is connected to the brake 8, which is used to transmit power to drive the hub motor 9 and the tire 10 to rotate along the sliding column 6 as the main axis of rotation when the sliding column 6 rotates, thereby realizing the steering of the vehicle body 11.

[0034] In the present invention, the steering motor 1 is fixed on the vehicle body 11, and the steering driven gear 3 meshed with it is driven to rotate through the steering active gear 2. The steering driven gear 3 is installed in a structure supported by the gear shaft 4 to ensure the stability of rotation and axial fixation. The shock absorber assembly 5 is movably connected to the inside of the vehicle body 11, and its outer side is connected to the sliding column 6. The sliding column 6 is provided with a gear on the outside, which meshes with the steering driven gear 3 and transmits power to the sliding column 6. The sliding column 6 drives the connecting arm 7 to rotate, thereby realizing the steering function of the wheel. The tire 10 is sleeved on the outside of the wheel hub, and the hub motor 9 inside the wheel hub drives the tire 10 to realize the forward or backward movement of the vehicle. One end of the connecting arm 7 is connected to the stator of the hub motor 9, and the other end realizes power transmission through the sliding column 6. At the same time, the hub motor 9 is also connected to the brake 8. When the sliding column 6 rotates, the power is transmitted to the hub motor 9 and the tire 10, realizing the steering while providing the necessary braking force to ensure the stability and safety of the vehicle.

[0035] The driving, steering, braking and suspension functions are highly integrated into one assembly, effectively reducing the use of multiple independent components such as differentials, half shafts, steering gears and tie rods in traditional suspension systems. The sliding column 6 replaces the traditional complex swing arm structure, which simplifies the overall structure of the suspension and reduces the difficulty of the manufacturing process. The reduction in the number of components not only reduces the overall weight of the suspension and chassis, but also significantly reduces the manufacturing cost and subsequent maintenance cost. At the same time, the simplified structural design reduces the occupancy of the chassis space, frees up more space in the car, and improves the ride comfort and practicality of the vehicle. In addition, the structural design also improves the convenience of assembly and maintenance.

[0036] Both ends of the gear shaft 4 are connected to the vehicle body 11 through bearings. A bearing is installed between the shock absorber assembly 5 and the sliding column 6 to support the sliding column 6 to rotate along the axis of the shock absorber assembly 5.

[0037] In the present invention, both ends of the gear shaft 4 are connected to the vehicle body 11 through bearings, and the bearings can reduce the friction of the gear shaft 4 during rotation, ensuring the smooth operation and long-term reliability of the gear shaft 4. At the same time, a bearing is installed between the shock absorber assembly 5 and the slide column 6 to support the slide column 6 to rotate freely in the shock absorber assembly 5, which not only improves the smoothness of the rotation of the slide column 6, but also improves the response speed and accuracy of the steering function of the whole vehicle, thereby enhancing the vehicle's handling performance and driving experience.

[0038] The rotor inside the wheel hub motor 9 is fixedly connected to the wheel rim. The brake disc inside the brake 8 is fixed to the wheel hub.

[0039] In the present invention, the rotor inside the wheel hub motor 9 is fixedly connected to the wheel rim, ensuring that the driving force output by the wheel hub motor 9 can be efficiently transmitted to the tire 10, realizing the forward or backward function of the vehicle. The brake disc inside the brake 8 is fixedly connected to the wheel hub, and generates a braking force through friction with the brake pad, which directly acts on the wheel to achieve deceleration or parking. Therefore, the driving and braking functions are integrated in the wheel hub, which not only simplifies the system structure, but also improves the efficiency of power and braking force transmission, and further improves the performance and compactness of the whole vehicle.

[0040] The connecting arm 7 is set to be T-shaped, and one side is connected to the outer wall of the sliding column 6, and the other side is connected to the hub motor 9. A cable is passed through the inside of the connecting arm 7 for supplying power to the hub motor 9.

[0041] In the present invention, the connecting arm 7 is designed as a T-shaped structure, one side of which is fixedly connected to the outer wall of the sliding column 6 for transmitting the rotational power of the sliding column 6, and the other side is connected to the wheel hub motor 9 to achieve the transmission of driving force and steering power. Cables are inserted into the connecting arm 7 to provide a stable power supply for the wheel hub motor 9. Not only does the connecting arm 7 play a core role in mechanical transmission, but the cables are also reasonably integrated into the connecting arm 7, avoiding the space occupation and wear problems that may be caused by the exposed cables, thereby improving the integration and reliability of the system, while ensuring the efficiency and stability of vehicle driving and control.

[0042] Working principle: When the vehicle needs to accelerate or move forward or backward, when the driver steps on the accelerator pedal, the controller will provide the required voltage and current to the wheel hub motor 9 through the cable in the connecting arm 7. At this time, the wheel hub motor 9 generates driving force to rotate the wheel hub and tire 10, so that the vehicle moves as a whole;

[0043] When the vehicle needs to brake: when the driver steps on the brake pedal, the motor in the brake 8 pushes the brake pad to clamp the brake disc, relying on friction to generate braking force to slow down the vehicle. At the same time, the controller controls the wheel hub motor 9 to recover kinetic energy, recovering part of the energy into the battery through the cable, and generating auxiliary braking force;

[0044] When the vehicle needs to turn: the steering motor 1 drives the steering active gear 2 to rotate, and then the steering active gear 2 drives the steering driven gear 3 to rotate, and then the gear on the outer wall of the sliding column 6 drives the sliding column 6 to rotate freely along the outer shell of the shock absorber assembly 5 as the rotation axis. At this time, the sliding column 6 drives the connecting arm 7 to drive the entire wheel hub motor 9 and the tire 10 to rotate, thereby realizing the steering function of the vehicle;

[0045] When the wheel is impacted by the road surface: the tire 10 bounces up and drives the wheel hub to move up and down, and the wheel hub drives the connecting arm 7 and the sliding column 6 to move up or down, and finally transmits the force to the shock absorber assembly 5. The shock absorber and spring assembly in the shock absorber assembly 5 are used to reduce the vibration amplitude and force, and play a role in buffering and shock reduction.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art 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 appended claims and their equivalents.

Claims

1. A sliding column type independent suspension assembly for a new energy vehicle, characterized in that: include: A steering motor (1) is connected to the vehicle body (11) and drives the steering driven gear (3) to rotate via the steering driving gear (2); A gear shaft (4) is mounted on one side of the vehicle body (11), and the gear shaft (4) passes through the middle of the steering driven gear (3); A shock absorber assembly (5) is installed in a vehicle body (11) and is connected to a sliding column (6) on the outside. A gear is fixed to the outside of the sliding column (6) for transmitting power from a driven gear (3) to drive the sliding column (6) to rotate; A tire (10) is sleeved outside a wheel hub, a wheel hub motor (9) is installed inside the wheel hub, one side of a stator inside the wheel hub motor (9) is fixedly connected to a connecting arm (7), the connecting arm (7) is fixedly connected to a sliding column (6), and one side of the wheel hub motor (9) is connected to a brake (8) for transmitting power to drive the wheel hub motor (9) and the tire (10) to rotate along the sliding column (6) as a main axis of rotation when the sliding column (6) rotates, thereby realizing the steering of the vehicle body (11).

2. The new energy vehicle sliding column type independent suspension assembly according to claim 1 is characterized in that: Both ends of the gear shaft (4) are connected to the vehicle body (11) via bearings.

3. The new energy vehicle sliding column type independent suspension assembly according to claim 1 is characterized in that: A bearing is installed between the shock absorber assembly (5) and the sliding column (6) for supporting the sliding column (6) to rotate along the axis of the shock absorber assembly (5).

4. The new energy vehicle sliding column type independent suspension assembly according to claim 1, characterized in that: The rotor inside the wheel hub motor (9) is fixedly connected to the wheel rim.

5. The new energy vehicle sliding column type independent suspension assembly according to claim 1, characterized in that: The brake disc inside the brake (8) is fixed to the wheel hub.

6. The new energy vehicle sliding column type independent suspension assembly according to claim 1, characterized in that: The connecting arm (7) is arranged in a T shape, with one side connected to the outer wall of the sliding column (6) and the other side connected to the wheel hub motor (9), and a cable is passed through the interior of the connecting arm (7) for supplying power to the wheel hub motor (9).

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