Automobile self-adapting adjusting rubber spring seat

Abstract

The present application relates to the technical field of automobile shock absorption, in particular to a self-adaptive adjusting rubber spring seat for automobile, which can adjust the volume of the air cavity through the pressure regulating mechanism, realize the self-adaptive adjustment of the elastic strength of the rubber spring seat, make each rubber spring seat adapt to the shock absorption synchronously and evenly, limit the load of the rubber spring seat, better absorb and buffer the impact and vibration of the road, eliminate the vibration and noise of the rubber spring seat, and through the self-adaptive shock absorption adjustment of the rubber spring seat, the rubber spring seat can adjust the stiffness of the suspension system according to different road quality and driving demand, improve the suspension response and posture control of the vehicle, reduce the shaking and out-of-control risk of the vehicle on uneven road, and can adjust the shock absorption performance according to the real-time change of the road condition to provide the best shock absorption effect.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile shock absorption, in particular to a self-adaptive adjusting rubber spring seat for automobile. BACKGROUND

[0002] The rubber spring seat for automobile is a part installed on the suspension system of the automobile, which is located between the vehicle body and the suspension spring and plays a role in shock absorption and buffering. It is made of rubber material and has certain elasticity and softness, which can absorb the impact and vibration caused by uneven road and provide a more comfortable riding experience. The main function of the rubber spring seat is to reduce the vibration and impact force transmitted to the vehicle body by the suspension system, and to protect the vehicle body and passengers from the influence of uneven road. It can help stabilize the vehicle, improve the performance and durability of the suspension system. The elastic properties of the rubber material enable it to absorb and disperse the vibration and impact from the road, reducing the impact on the vehicle body and passengers, while protecting the components of the suspension system. The rubber spring seat plays an important role in automobile engineering, as it can improve the ride comfort of the vehicle, reduce wear and tear of the suspension system, and prolong the service life of the vehicle. Therefore, the selection and quality of the rubber spring seat are very important when designing and manufacturing the suspension system of the automobile.

[0003] However, the design and material selection of the rubber spring seat need to consider its maximum load that it can withstand. If the maximum load is exceeded, the rubber spring seat may deform or be damaged, resulting in poor shock absorption or failure. In addition, there are certain size and weight differences in the manufacturing process of the rubber spring seat, which may cause uneven installation of the rubber spring seat in different positions of the vehicle. Unevenness can lead to unstable performance of the vehicle suspension system, affecting driving comfort and handling. At the same time, although the rubber spring seat can reduce the transmission of road vibration, it may still produce noise and vibration in certain situations, especially at high speeds or on uneven roads. The rubber spring seat may not be able to completely eliminate the vibration and noise problem, and there are certain defects. Therefore, it is necessary to develop a self-adaptive adjusting rubber spring seat for automobile. SUMMARY

[0004] In view of the above-mentioned defects and problems, the present application provides a self-adaptive adjusting rubber spring seat for automobile, which can adjust the volume of the air cavity through the pressure regulating mechanism, realize the self-adaptive adjustment of the elastic strength of the rubber spring seat, make each rubber spring seat adapt to shock absorption synchronously and evenly, limit the load of the rubber spring seat, better absorb and buffer the impact and vibration of the road, eliminate the vibration and noise of the rubber spring seat, and through the self-adaptive shock absorption adjustment of the rubber spring seat, the rubber spring seat can adjust the stiffness of the suspension system according to different road quality and driving requirements, improve the suspension response and attitude control of the vehicle, reduce the risk of shaking and losing control of the vehicle on uneven roads, and can adjust the shock absorption performance according to the real-time changes of the road conditions to provide the best shock absorption effect.

[0005] The technical problem is solved by the following technical scheme: the automobile self-adaptive adjusting rubber spring seat comprises a rubber spring seat and a pressure adjusting mechanism, the rubber spring seat comprises a hydraulic cylinder, a free end of a cylinder rod of the hydraulic cylinder is fixed with an upper rubber seat, an outer side of the upper rubber seat is fixed with an upper connecting seat connected with a suspension, a bottom of the hydraulic cylinder is fixed with a lower rubber seat, an outer side of the lower rubber seat is fixed with a lower connecting seat connected with a bottom plate, and a spring is arranged between the upper rubber seat and the lower rubber seat; the pressure adjusting mechanism comprises a cylinder body, a free piston and a driving piston are arranged in the cylinder body, an upper side of the free piston is an oil chamber, an air cavity is formed between the free piston and the driving piston, an air pipe is installed on a side wall of the air cavity, an electromagnetic valve is arranged on the air pipe, and a controller changes the lifting degree of the driving piston by opening the electromagnetic valve and controlling a driving mechanism; oil chambers of hydraulic cylinders for shock absorption on two sides are communicated through a balance oil pipe, a stop valve is arranged on the balance oil pipe, and the balance oil pipe is communicated with the oil chamber; the controller judges road quality according to a road data module, and changes the volume of the air cavity through the pressure adjusting mechanism, so as to change the elastic strength of the linked rubber spring seat and adjust the shock absorption of the vehicle.

[0006] Further, an upper gasket is arranged between the free end of the cylinder rod and the upper rubber seat, the upper gasket is fixedly connected with the cylinder rod and the upper rubber seat respectively, a lower gasket is arranged between the hydraulic cylinder and the lower rubber seat, and the lower gasket is fixedly connected with the hydraulic cylinder and the lower rubber seat respectively.

[0007] Further, the driving mechanism comprises a gear box installed at the bottom of the cylinder body, a screw rod is arranged in the cylinder body, the screw rod is in transmission connection with the gear box, an output end of a driving motor drives the screw rod through the gear box, the lifting degree of the driving piston is controlled, and the volume of the air cavity is changed.

[0008] Further, a sensor group is arranged on the suspension, the sensor group comprises a displacement sensor and a vibration sensor, and the sensor group is in signal connection with the controller.

[0009] Further, the road data module is road quality big data information, and the controller judges the road quality according to the road quality big data information.

[0010] Further, the road data module is a real-time image camera, road quality information is collected and processed through the real-time image camera, and the information is transmitted to the controller, and the controller judges the road quality according to the information collected by the real-time image camera.

[0011] Further, the resistance adjusting assembly is further arranged to assist the rubber spring seat in shock absorption.

[0012] The beneficial effects of the present application are as follows: the structure of the present application is unique and ingenious, the bottom of the hydraulic cylinder and the top of the inner cylinder rod are respectively fixed with rubber seats, the bottom of the hydraulic cylinder and the top of the cylinder rod are respectively installed on the suspension system of the vehicle through connecting seats, springs are arranged between the upper and lower connecting seats, the cylinder rod can control the springs, damping oil is arranged in the oil cavity in the hydraulic cylinder, the damping oil can enter the oil chamber of the cylinder through the balance oil pipe, the balance oil pipe can connect the oil cavities of the hydraulic cylinders on both sides to balance the oil; the controller can judge the quality of the current road according to the road data module, and control the driving motor to control the lifting degree of the driving piston according to the obtained road information, change the volume of the air cavity, and adaptively change the elasticity of the rubber spring seat; when it is necessary to enhance the damping effect, the controller opens the electromagnetic valve, the external air enters the air cavity, the driving motor drives the screw through the gear box, the driving piston is lowered, the volume of the air cavity is increased, then the electromagnetic valve is closed to make the air cavity in a sealed state, and the stop valve is also opened to make the balance oil pipe connected, because the volume of the air cavity is increased, the buffering of the free piston is stronger, so that the rigidity of the rubber spring seat is reduced; when it is necessary to reduce the damping effect, the controller opens the electromagnetic valve, the driving motor drives the screw through the gear box, the driving piston is raised, the air in the air cavity is discharged, the volume of the air cavity is reduced, then the electromagnetic valve is closed to make the air cavity in a sealed state, and the stop valve is also opened to make the balance oil pipe connected, because the volume of the air cavity is reduced, the buffering of the free piston is weaker, so that the rigidity of the rubber spring seat is increased, the volume of the air cavity is adjusted through the pressure regulating mechanism, the adaptive adjustment of the elastic strength of the rubber spring seat is realized, and each rubber spring seat can also adapt to damping synchronously and uniformly under the action of the balance oil pipe, the load of the rubber spring seat is limited, and the vibration and noise of the rubber spring seat are eliminated. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is one of the structural schematic diagrams of the present application.

[0014] Figure 2 It is the second structural schematic diagram of the present application.

[0015] Figure 3 It is a structural schematic diagram of a single rubber spring seat.

[0016] Figure 4 It is a structural schematic diagram of the pressure regulating mechanism.

[0017] Figure 5 It is a control flowchart of the present application.

[0018] Figure 6 It is a structural schematic diagram of the resistance adjusting assembly.

[0019] In the diagram: 1-Rubber spring seat, 11-Hydraulic cylinder, oil chamber, 12-Cylinder rod, 13-Upper gasket, 14-Upper rubber seat, 15-Upper connecting seat, 16-Suspension, 17-Spring, 18-Lower gasket, 19-Lower rubber seat, 20-Lower connecting seat, 21-Base plate, 22-Balance oil pipe, 23-Stop valve, 3-Pressure regulating mechanism, 31-Cylinder body, 32-Free piston, 33-Drive piston, 34-Oil chamber, 35-Air chamber, 36-Air pipe, 37-Solenoid valve, 4-Drive mechanism, 41-Drive motor, 42-Gearbox, 43-Screw, 5-Inner cylinder, 6-Outer cylinder, 7-Cylinder cover, 8-Slot hole. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Example 1: The design and material selection of existing rubber spring seats need to consider the maximum load they can withstand. When the maximum load is exceeded, the rubber spring seat may deform or be damaged, resulting in poor shock absorption or failure. In addition, there are certain differences in size and weight during the manufacturing process of rubber spring seats, which may lead to imbalance of rubber spring seats installed in different positions on the vehicle. Imbalance will cause the performance of the vehicle suspension system to be unstable, affecting driving comfort and handling. At the same time, although rubber spring seats can reduce the transmission of road vibrations, they may still generate noise and vibration in some cases, especially at high speeds or on uneven roads. Rubber spring seats may not be able to completely eliminate vibration and noise problems, which has certain defects.

[0022] To address the aforementioned problems, this embodiment provides an adaptive adjustable rubber spring seat for automobiles, such as... Figures 1-4 As shown, the rubber spring seat 1 includes a hydraulic cylinder 11. An upper gasket 13 is fixed to the free end of the cylinder rod 12 of the hydraulic cylinder 11. An upper rubber seat 14 is fixedly connected above the upper gasket 13. An upper connecting seat 15 is fixed to the top of the upper rubber seat 14. The upper connecting seat 15 is connected to the vehicle's suspension 16 through a connector. In order to ensure the stability of the cylinder rod 12, the free end of the cylinder rod 12 passes through the upper gasket 13 and the upper rubber seat 14 and is fixedly connected to the upper connecting seat 15 by bolts.

[0023] A lower gasket 18 is fixed to the bottom of the hydraulic cylinder 11. A lower rubber seat 19 is fixedly connected to the lower gasket 18. A lower connecting seat 20 is fixed to the bottom of the lower rubber seat. The lower connecting seat 20 is fixedly connected to the base plate 21 through a connector. The base plate 21 is installed on the vehicle's suspension. A spring 17 is provided between the upper rubber seat 14 and the lower rubber seat 19. One end of the spring 17 is fixedly connected to the upper gasket 13, and the other end is fixedly connected to the lower gasket 18. When the cylinder rod 12 extends and retracts in the hydraulic cylinder 11, it will synchronously drive the spring 17, changing the elastic strength of the spring 17, thereby changing the elastic strength of the rubber spring seat 1.

[0024] The oil cavity in the hydraulic cylinder 11 is an oil container, filled with specific damping oil, and the oil cavities of the hydraulic cylinders 11 on both sides are connected through the balance oil pipe 22 to balance the oil, and a stop valve 23 is installed on the balance oil pipe.

[0025] The pressure regulating mechanism 3 includes a cylinder 31, a free piston 32 and a drive piston 33 are matched in the cylinder 31, the upper part of the free piston 32 is an oil chamber 34, the branch pipe of the balance oil pipe 22 is in sealed communication with the oil chamber 34, and the damping oil in the oil cavity of the hydraulic cylinder 11 can enter the oil chamber 34 through the balance oil pipe 22,

[0026] The space between the free piston 32 and the drive piston 33 constitutes an air cavity 35, a gas pipe 36 is installed on the side wall of the air cavity 35, and a solenoid valve 37 is installed on the gas pipe 36, which is controlled by a controller and is opened or closed by a control signal from the controller to make the air cavity 35 inhale or exhale, a gear box 42 is installed at the bottom of the cylinder 31, and a screw rod 43 is installed in the bottom of the cylinder 31, the drive piston 33 is matched and installed on the screw rod 43, the screw rod 43 is in transmission connection with the gear box 42, and a drive motor 41 is also installed on the gear box 42, after the solenoid valve 37 is opened, the output end of the drive motor 41 drives the screw rod 43 through the gear box 42, which can control the lifting degree of the drive piston 33, change the volume of the air cavity 35, and further change the elasticity of the rubber spring seat 1.

[0027] A sensor group is provided on the suspension, which includes a displacement sensor and a vibration sensor, and the sensor group is in signal connection with the controller to monitor the operation of the suspension, in the use process, the controller can judge the quality of the current road according to the road data module, the road data module is road quality big data information or a real-time image camera, the road quality information is collected and processed through the real-time image camera and transmitted to the controller, through the obtained road information, the controller can control the drive motor to control the lifting degree of the drive piston 33, change the volume of the air cavity 35, and change the elasticity of the rubber spring seat.

[0028] When the damping effect needs to be enhanced, the stop valve 23 is closed to cut off the balance oil pipe 22, the controller opens the solenoid valve 37 to make the external air enter the air cavity 35, at the same time, the drive motor 41 drives the screw rod 43 through the gear box 42 to make the drive piston 33 descend, increase the volume of the air cavity 35, then close the solenoid valve 37 to make the air cavity 35 in airtight state, and the stop valve 23 is also opened to make the balance oil pipe 22 connected, because the volume of the air cavity 35 is increased, the buffering performance of the free piston 32 is stronger, so as to reduce the stiffness of the rubber spring seat 1.

[0029] When it is necessary to reduce the damping effect, the stop valve 23 is closed to stop the balance oil pipe 22, the controller opens the electromagnetic valve 37, the driving motor 41 drives the screw rod 43 through the gear box 42 to drive the driving piston 33 to rise, the air in the air cavity 35 is discharged, the volume of the air cavity 35 is reduced, then the electromagnetic valve 37 is closed to make the air cavity 35 in a sealed state, and the stop valve 23 is also opened to make the balance oil pipe 22 communicate. Due to the reduction of the volume of the air cavity 35, the buffering performance of the free piston 32 can be weakened, so as to increase the rigidity of the rubber spring seat 1. The volume of the air cavity 35 is adjusted by the pressure regulating mechanism, the self-adaptive adjustment of the elastic strength of the rubber spring seat 1 is realized, and the rubber spring seat 1 can also be synchronously and evenly adapted to damping under the action of the balance oil pipe 22, the load of the rubber spring seat 1 is limited, and the vibration and noise of the rubber spring seat are eliminated.

[0030] By controlling the volume of the air cavity in the cylinder, the rubber spring seat can realize self-adaptive damping adjustment of the vehicle. For example, when the road quality is poor or there is bumping, the controller controls the pressure regulating mechanism to increase the volume of the air cavity, reduces the rigidity of the rubber spring seat, makes it softer, better absorbs and slows down the impact and vibration from the road, and provides better ride comfort and stability. When the road quality is good or higher suspension rigidity is required, the controller controls the pressure regulating mechanism to reduce the volume of the cavity, increases the rigidity and stability of the rubber spring seat, better controls the attitude and suspension response of the vehicle, adapts to the needs of high-speed driving or intense driving, and reduces the risk of shaking and losing control of the vehicle on uneven road. And through the road quality big data information or real-time image camera processing information to judge the road quality, the pressure regulating mechanism is controlled according to the judgment structure, so that the rubber spring seat can adaptively adjust the damping performance according to the real-time change of the road condition, provide the best damping effect, and realize the best adjustment of the suspension system.

[0031] Preferably, the oil cavity in the hydraulic cylinder is directly connected to the oil chamber in the cylinder through the balance oil pipe, and the flow resistance of the damping oil cannot be controlled. The damping oil will quickly enter the oil chamber, which may weaken the damping effect of the rubber spring seat. Therefore, a resistance adjusting assembly for assisting the damping of the rubber spring seat is provided, such as Figure 6As shown, the hydraulic cylinder 11 is a composite structure, including an inner cylinder 5 and an outer cylinder 6, the outer side of the inner cylinder 5 is sealed and sleeved with the outer cylinder 6, and a strip hole 8 is formed in the side of the inner cylinder 5, the strip hole 8 is communicated with the outer cylinder 6, the bottom of the outer cylinder 6 is connected with the balance oil pipe 22, the bottom of the cylinder rod 12 is fixed with a barrel cover 7, and the oil cavity of the inner cylinder 5 is divided into three sections of upper, middle and lower, the strip hole 8 is located in the middle section, when the barrel cover 7 of the cylinder rod 12 is located in the upper section a, the freedom of the rubber spring seat is in the maximum stage, the damping effect is better, the barrel cover 7 can float up and down in the upper section a, the damping oil in the oil cavity is extruded into the outer cylinder 6 through the strip hole 8, and then into the balance oil pipe 22 through the outer cylinder 6, when the damping oil enters the outer cylinder 6 through the strip hole 8, the damping oil flow rate resistance can be increased through the strip hole 8, and the damping effect is increased; when the barrel cover 7 of the cylinder rod 12 is located in the middle section b, the barrel cover 7 can float up and down in the middle section b, the barrel cover 7 will stagger with the strip hole 8, change the size of the strip hole 8, the freedom of the rubber spring seat is gradually reduced, and the damping effect is weakened; when the barrel cover 7 of the cylinder rod 12 is located in the lower section c, the barrel cover 7 will directly block the strip hole 8, the barrel cover 7 no longer floats in the lower section c, the rubber spring seat is in a state of no freedom, and the resistance adjustment of the rubber spring seat is realized.

[0032] The above only describes the preferred embodiments of the present application, and does not limit the present application, any modification, equivalent replacement and improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A self-adjusting rubber spring seat for automobiles, characterized in that, The system includes a rubber spring seat, a pressure regulating mechanism, and a resistance adjusting assembly. The rubber spring seat includes a hydraulic cylinder, which is a composite structure comprising an inner cylinder and an outer cylinder. The outer cylinder is sealed to the outside of the inner cylinder, and a slot is provided on the side of the inner cylinder, communicating with the outer cylinder. The bottom of the outer cylinder is connected to a balance oil pipe. A cylinder cover is fixed to the bottom of the cylinder rod, and the oil chamber of the inner cylinder is divided into three sections: upper, middle, and lower, with the slot located in the middle section. An upper rubber seat is fixed to the free end of the cylinder rod of the hydraulic cylinder. An upper connecting seat connected to the suspension is fixed to the outside of the upper rubber seat. A lower rubber seat is fixed to the bottom of the hydraulic cylinder, and a lower connecting seat connected to the base plate is fixed to the outside of the lower rubber seat. A spring is provided between the upper and lower rubber seats. The pressure regulating mechanism includes a cylinder containing a free piston and a driving piston. An oil chamber is located above the free piston, and an air cavity is formed between the free piston and the driving piston. An air pipe is installed on the side wall of the air cavity, and a solenoid valve is installed on the air pipe. The controller changes the lifting and lowering degree of the driving piston by opening the solenoid valve and controlling the driving mechanism. The oil chambers of the hydraulic cylinders used for shock absorption on both sides are connected through a balance oil pipe, and a shut-off valve is installed on the balance oil pipe, which is also connected to the oil chamber. The controller determines the road quality based on the road data module and changes the volume of the air cavity through the pressure regulating mechanism, thereby changing the elastic strength of the linked rubber spring seat and adjusting the vehicle's shock absorption.

2. The adaptive adjustable rubber spring seat for automobiles according to claim 1, characterized in that, An upper gasket is provided between the free end of the cylinder rod and the upper rubber seat. The upper gasket is fixedly connected to the cylinder rod and the upper rubber seat respectively. A lower gasket is provided between the hydraulic cylinder and the lower rubber seat. The lower gasket is fixedly connected to the hydraulic cylinder and the lower rubber seat respectively.

3. The adaptive adjustable rubber spring seat for automobiles according to claim 1, characterized in that, The drive mechanism includes a gearbox installed at the bottom of the cylinder and a screw installed inside the cylinder. The screw is connected to the gearbox for transmission. The output end of the drive motor drives the screw through the gearbox to control the degree of lifting and lowering of the drive piston and change the volume of the air chamber.

4. The adaptive adjustable rubber spring seat for automobiles according to claim 1, characterized in that, The sensor group is mounted on the suspension and includes displacement sensors and vibration sensors. The sensor group is connected to the controller signal.

5. The adaptive adjustable rubber spring seat for automobiles according to claim 1, characterized in that, The road data module contains big data information on road quality, and the controller uses this big data information to determine the quality of the road.

6. The adaptive adjustable rubber spring seat for automobiles according to claim 1, characterized in that, The road data module is a real-time image camera. It collects and processes road quality information through the real-time image camera and transmits it to the controller. The controller judges the road quality based on the information collected by the real-time image camera.

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