Horizontal damping device

Abstract

In order to reduce vehicle body vibration caused when moving wheels meet obstacles and improve riding comfort, the following technology is adopted: a wheel shaft does certain arc motion around a frame fixing shaft, when a vehicle advances and meets the obstacles, the wheels move backwards (relative to the vehicle body), the impact force of the obstacles during advancing is reduced, meanwhile, the wheels are lifted upwards, and the wheels are driven to move forwards. And the vertically upward shaking force of the obstacle to the wheels is reduced. Therefore, the obstacle crossing capability of the vehicle is improved. A horizontally-installed spring is adopted to control the wheel shaft to do certain arc motion around the frame fixing shaft, and the spring generates component force in the horizontal direction so as to balance backward resistance borne by the wheels. The invention has the following beneficial effects: when the vehicle encounters an obstacle at first, the wheels move backwards and upwards under the action of impact force, so that the vibration of the obstacle to the vehicle body is reduced in a large-radian manner. Namely, vibration force in the vertical direction caused by obstacles on the vehicle body and the human body is reduced. And meanwhile, the impact force on the wheels is reduced, and the whole structure of the vehicle is protected to a certain degree.

Description

Technical Field

[0001] The present invention is a mechanical motion damping method. Background Art

[0002] The existing shock absorption of motorcycles, electric vehicles and cars all use the wheel axle to connect vertically with the body through springs. When the moving wheel is vibrated by an obstacle, the vibration force is transmitted to the body through the compression spring. Because the forces at both ends of the spring are always equal, the spring buffering plays a certain vertical shock absorption role. Summary of the invention

[0003] In order to reduce the vibration of the vehicle body caused by the moving wheel encountering an obstacle and improve the riding comfort, the present invention adopts the following technology: the wheel axle is moved in a certain arc around the fixed axis of the frame. When the vehicle moves forward and encounters an obstacle, the wheel will move backward (relative to the vehicle body) to reduce the impact force of the obstacle when moving forward. At the same time, the wheel is lifted upward to reduce the vertical upward vibration force of the obstacle on the wheel. Thereby improving the vehicle's ability to cross obstacles. The control of the wheel axle to move in a certain arc around the fixed axis of the frame is achieved by a horizontally installed spring, which will generate a horizontal component force to balance the backward resistance of the wheel.

[0004] The beneficial effect of the present invention is that when a vehicle first encounters an obstacle, the wheels will move backward and upward under the impact force, thereby reducing the vibration of the obstacle to the vehicle body in a large arc. That is, the vertical vibration force caused by the obstacle to the vehicle body and human body is reduced. At the same time, the impact force on the wheel itself is also reduced, and the overall structure of the vehicle is protected to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0005] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0006] Figure 1 This is a schematic diagram of the present invention. In the figure, ① is the fixed axis of the frame, ② is the wheel axis, ③ is the rotating connector, ④ is the bearing, ⑤ is the original vehicle spring, ⑥ is part of the frame, and ⑦ is the horizontal spring. This figure shows the state of the vehicle running normally on flat ground, and the wheel axis forms an angle of 30 degrees with the frame axis in the vertical direction (as shown in the figure). It can also be other angles greater than zero degrees. Figure 2 When the wheel encounters an obstacle and generates great resistance, the wheel will swing to its maximum state. The wheel axle rotates around the frame axis to become horizontal, indicating that the wheel is crossing the obstacle. After the wheel crosses the obstacle, the horizontal spring pulls the wheel back to Figure 1 state.

[0007] The reason why the wheel swings around the fixed axis when encountering an obstacle is that no matter whether the wheel is running smoothly or encountering an obstacle, the wheel axle will generate a torque on the fixed axis ( Figure 1When the wheel encounters an obstacle, it will be subjected to horizontal and vertical impact forces. The horizontal impact force is opposite to the forward direction of the vehicle, pushing the rear wheel backwards and stretching the horizontal spring to generate a clockwise torque on the fixed axis. The vertical impact force will also generate a counterclockwise torque N at the fixed axis (such as Figure 1 As shown in the figure, the torque N will also stretch the horizontal spring. The impact force will push the rear wheel backwards, and the rear wheel will swing backwards and upwards, which will allow the vehicle body and the human body to cross the obstacle with little impact force. This will improve comfort. The spring can also be a compression spring, which should be set above the wheel axle. Regardless of which spring or other method is used, the torque generated by the reaction force will balance the torque generated by the resistance in the direction of the wheel axle movement. If Figure 1 If all the structures in the system are rotated 90 degrees, they will act as shock absorbers in the horizontal direction. DETAILED DESCRIPTION

[0008] Due to the wide use of this device, the current specific implementation is a two-wheeled battery vehicle. The horizontal shock absorbing device is installed at the rear wheel of the battery vehicle. The wheel axle of the device is 40mm away from the fixed center, that is, the wheel axle can move in a circle with a radius of 40mm around the fixed axis. The horizontal spring is 3.5*20*180, and the vertical pressure of the rear wheel on the ground is 74kg when a person rides. When crossing a 40mm high speed bump during riding, the vibration arc and impact force on the person are extremely small. The design effect has been achieved by using this device.

Claims

1. The horizontal shock absorbing device is a shock absorbing device that reduces vertical vibration. Its technical features are: The wheel axle is made to move in a certain arc around the fixed axis of the frame. When the vehicle moves forward and encounters an obstacle, the wheel will move backward (relative to the body) to reduce the impact force (i.e., buffering) generated by the obstacle when moving forward. At the same time, the wheel is lifted upward to reduce the vertical upward vibration force of the obstacle on the wheel. Thereby improving the vehicle's ability to cross obstacles. The control of the wheel axle to make a certain arc movement around the fixed axis of the frame is achieved by using a horizontally installed spring. The spring will generate a horizontal component force to balance the backward resistance of the wheel. That is, the torque of the spring force (or the force generated by other means) acting on the fixed axis is opposite to the torque generated by the wheel axle on the fixed axis.

2. According to claim 1, the wheel axle moves in a certain range of arc around the fixed axis of the frame. That is, the wheel moves in a certain range of arc around the fixed axis of the frame, and the wheel moves up and down along with the raised obstacle.

3. Use the spring to generate a horizontal force component to control or balance the resistance of the tire to obstacles. The spring should be rigidly connected to the fixed point of the frame and the fixed axis.

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