Chassis with damping function

Abstract

The chassis with the damping function comprises a chassis body, a movable arm, an axle and a damping device, and the damping device comprises a piston rod shell, a piston rod, a first spring, an upper spring cushion, a lower spring cushion, a support, a first bearing ring, a nut and a motor. Through the combination of the piston rod shell, the piston rod, the first spring, the upper spring pad, the lower spring pad, the support, the first bearing ring, the nut and the motor, when the road surface is uneven, the piston rod is extruded or stretched, the first spring deforms, damping force is generated, and impact and vibration from the road surface are absorbed and buffered. Meanwhile, the first spring generates elastic counterforce between the upper spring cushion and the lower spring cushion, and vibration of the automobile body is further reduced. Besides, a nut is in threaded connection with a shell of the piston rod, the nut is driven by a motor to rotate, the spring is extruded or stretched, the elastic force of the first spring is adjusted accordingly, and through cooperative work of the movable arm, the axle and the damping device, the effective supporting and damping effects on the vehicle body are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobiles, in particular to a chassis with a shock-absorbing function. Background Art

[0002] Cars were not like this when they were first invented, and the development of cars has also been a long process. After more than 100 years of continuous improvement and innovation, they have condensed the wisdom and ingenuity of mankind, and benefited from the support of various industries such as petroleum, steel, aluminum, chemicals, plastics, mechanical equipment, electricity, road networks, electronic technology and finance, which has driven their development and become a means of transportation with various forms and specifications, widely used in various fields of social and economic life. The chassis of an automobile consists of four parts: the transmission system, the running system, the steering system and the braking system. The function of the chassis is to support and install the automobile engine and its various components and assemblies to form the overall shape of the car, and to receive the power of the engine to make the car move and ensure normal driving. In the existing technology, the chassis is an important part of the car. It carries key components such as the engine and transmission system and supports the entire car body. However, the traditional chassis is easily affected by the impact and vibration of the road during driving, which affects the driving stability and comfort. Therefore, a chassis with a shock-absorbing function is needed to solve this problem, and the shock-absorbing device is used to reduce the impact of road impact and vibration on the car body, so as to improve the driving stability and comfort. Utility Model Content

[0003] In view of this, the utility model proposes a chassis with a shock absorbing function, which reduces the impact of road impact and vibration on the vehicle body through a shock absorbing device, thereby improving driving stability and comfort.

[0004] The technical solution of the utility model is achieved in this way:

[0005] A chassis with a shock-absorbing function comprises a chassis, a movable arm, an axle, and a shock-absorbing device, wherein the chassis is located above the axle, the movable arm is symmetrically arranged on both sides of the axle, and the end thereof away from the axle is connected to a wheel, the shock-absorbing device comprises a piston rod housing, a piston rod, a first spring, an upper spring pad, a lower spring pad, a bracket, a first bearing ring, a nut, and a motor, one end of the piston rod is passed through the piston rod housing, and the other end thereof is connected to the top of the lower spring pad, the first spring is sleeved on the piston rod housing, the top end of the first spring is connected to the bottom of the upper spring pad, and the bottom end thereof is connected to the top of the lower spring pad, the piston rod housing is provided with a thread, The piston rod housing is threaded with a nut, the first bearing ring is sleeved on the piston rod housing, the outer wall of the nut is connected to the inner ring of the first bearing ring, the bracket is sleeved on the piston rod housing and connected to the top of the upper spring pad, the outer ring of the first bearing ring is connected to the middle part of the bracket, a motor is provided on the top of the bracket, a rack is provided on the top of the nut, the rack is arranged in a ring shape, a gear is connected to the output shaft of the motor, the gear is meshed with the rack, connecting ends are provided on the top of the piston rod housing and the bottom of the lower spring pad, the connecting end at the top of the piston rod housing is connected to the axle, and the connecting end at the bottom of the lower spring pad is connected to the movable arm.

[0006] Preferably, connecting blocks are provided on both sides of the axle, and the movable arm is rotatably connected to the connecting blocks on both sides of the axle.

[0007] Preferably, a vibration sensor is provided inside the movable arm, and a controller is provided at the bottom of the undercarriage, and the controller is electrically connected to the motor and the vibration sensor.

[0008] Preferably, the movable arm is connected to the chassis via a second spring, the top of the second spring is connected to the bottom of the chassis, and the bottom of the second spring is connected to the top of the movable arm.

[0009] Preferably, the movable arm is made of aluminum alloy material, the middle part of which is hollow, a second bearing ring is provided at the connection between the movable arm and the axle, one end of the movable arm is connected to the outer ring of the second bearing ring, and the connecting block is connected to the inner ring of the bearing ring.

[0010] Preferably, the outer sleeve of the first spring is provided with a dust cover, the inner wall of the upper end of the dust cover is connected to the side wall of the upper spring pad, and the inner wall of the lower end of the dust cover is connected to the side wall of the lower spring pad.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] ① The utility model is designed with a shock absorbing device, which can absorb and buffer the impact and vibration from the road surface when the road surface is uneven through the combination of the piston rod housing, the piston rod, the first spring, the upper spring pad, the lower spring pad, the bracket, the first bearing ring, the nut, and the motor, thereby realizing the complex function of the shock absorbing device.

[0013] ② The utility model is designed with a movable arm, which is connected to the axle and the shock absorbing device. When the shock absorbing device is impacted and vibrated by the road surface, the movable arm can absorb and buffer the impact and vibration from the road surface, thereby reducing its impact on the vehicle body.

[0014] ③The utility model is designed with a vibration sensor and a controller. The vibration data is collected by the vibration sensor and sent to the controller, and the motor is adjusted by the controller to automatically adjust the elastic force of the first spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only preferred embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor.

[0016] Figure 1 This is a schematic diagram of the structure of a chassis with a shock-absorbing function according to the utility model;

[0017] Figure 2 It is a top view of a shock absorbing device in a chassis with a shock absorbing function according to the utility model;

[0018] Figure 3 It is a structural schematic diagram of a shock absorbing device in a chassis with a shock absorbing function according to the utility model;

[0019] Figure 4 for Figure 3 A magnified view of middle;

[0020] In the figure, 1 is a chassis, 2 is a movable arm, 3 is a vehicle axle, 4 is a wheel, 5 is a piston rod housing, 6 is a piston rod, 7 is a first spring, 8 is an upper spring pad, 9 is a lower spring pad, 10 is a bracket, 11 is a first bearing ring, 12 is a nut, 13 is a motor, 14 is a thread, 15 is a rack, 16 is a gear, 17 is a connecting block, 18 is a vibration sensor, 19 is a controller, 20 is a second spring, 21 is a second bearing ring, 22 is a dust cover, and 23 is a connecting end. DETAILED DESCRIPTION

[0021] In order to better understand the technical content of the present invention, a specific embodiment is provided below, and the present invention is further described in conjunction with the accompanying drawings.

[0022] See also Figures 1 to 4The utility model provides a chassis with shock absorption function, including a chassis 1, a movable arm 2, an axle 3, and a shock absorption device. The chassis 1 is located above the axle 3, and the movable arm 2 is symmetrically arranged on both sides of the axle 3. The end thereof away from the axle 3 is connected with a wheel 4. The shock absorption device includes a piston rod housing 5, a piston rod 6, a first spring 7, an upper spring pad 8, a lower spring pad 9, a bracket 10, a first bearing ring 11, a nut 12, and a motor 13. One end of the piston rod 6 is penetrated into the piston rod housing 5, and the other end thereof is connected to the top of the lower spring pad 9. The first spring 7 is sleeved on the piston rod housing 5, and the top of the first spring 7 is connected to the bottom of the upper spring pad 8, and the bottom end thereof is connected to the top of the lower spring pad 9. The piston rod housing 5 is provided with a thread 14. The plug rod housing 5 is threaded with a nut 12, the first bearing ring 11 is sleeved on the piston rod housing 5, the outer wall of the nut 12 is connected to the inner ring of the first bearing ring 11, the bracket 10 is sleeved on the piston rod housing 5 and connected to the top of the upper spring pad 8, the outer ring of the first bearing ring 11 is connected to the middle of the bracket 10, a motor 13 is provided on the top of the bracket 10, a rack 15 is provided on the top of the nut 12, the rack 15 is arranged in a ring shape, the output shaft of the motor 13 is connected to a gear 16, and the gear 16 is meshed with the rack 15, the top of the piston rod housing 5 and the bottom of the lower spring pad 9 are both provided with connecting ends 23, the connecting end 23 at the top of the piston rod housing 5 is connected to the axle 3, and the connecting end 23 at the bottom of the lower spring pad 9 is connected to the movable arm 2.

[0023] The utility model connects the movable arm 2 and the axle 3 to the shock absorbing device through the connecting end 23, and uses the shock absorbing device to convert the vibration of the chassis 1 into heat energy for consumption, thereby reducing the up and down swing of the vehicle body and providing a smoother driving experience. When the wheel 4 passes through an uneven road surface, the piston rod 6 is squeezed or stretched, and at the same time drives the first spring 7 to be squeezed or stretched, and the elastic force generated is used to absorb and buffer the impact and vibration from the road surface. At the same time, an upper spring pad 8 and a lower spring pad 9 are set on the first spring 7 to increase the contact area and protect the pressing surface. Since the piston rod housing 5 is provided with a thread 14, the nut 12 can rotate along the thread 14, thereby adjusting the elastic force of the first spring 7, and the outer wall of the nut 12 is connected to the inner ring of the first bearing ring 11, so that the nut 12 can rotate around the center of the first bearing ring 11. At the same time, the outer ring of the first bearing ring 11 is connected to the middle of the bracket 10, and the bracket 10 is sleeved on the piston rod housing 5 and connected to the top of the upper spring pad 8. Therefore, the movement of the bracket 10 drives the movement of the upper spring pad 8, and the movement of the upper spring pad 8 further adjusts the tension of the first spring 7, thereby adjusting the damping force of the shock absorber. When the motor 13 is working, the gear 16 rotates and drives the gear 16 to mesh with the rack 15 at the top of the nut 12. The rotation of the gear 16 drives the nut 12 to rotate along the thread 14, thereby adjusting the tension of the first spring 7. The damping force of the shock absorber can be adjusted in real time by the control of the motor 13.

[0024] Preferably, connecting blocks 17 are provided on both sides of the axle 3 , and the movable arm 2 is rotatably connected to the connecting blocks 17 on both sides of the axle 3 .

[0025] The chassis 1 can better adapt to different road conditions and driving requirements through the rotation connection between the connecting block 17 and the movable arm 2. During driving, when encountering bumps or turns, the movable arm 2 can swing appropriately under the guidance of the connecting block 17 to reduce the impact and vibration on the vehicle body.

[0026] Preferably, a vibration sensor 18 is provided inside the movable arm 2 , and a controller 19 is provided at the bottom of the undercarriage. The controller 19 is electrically connected to the motor 13 and the vibration sensor 18 .

[0027] By introducing a vibration sensor 18 and a controller 19, the vibration sensor 18 uses the Tyco TE-3255A sensor, and the controller 19 uses the Premax-VT6008 vibration controller. The vibration sensor 18 is used to monitor the road impact and vibration of the chassis 1 in real time. The vibration sensor 18 transmits the signal to the controller 19. After receiving the signal, the controller 19 controls the motor 13 to drive the gear 16 to rotate, thereby adjusting the position of the nut 12 and changing the tension of the first spring 7. The damping force of the shock absorber can be dynamically adjusted to adapt to different road conditions and driving requirements, thereby realizing intelligent control of the shock absorber.

[0028] Preferably, the movable arm 2 is connected to the chassis 1 via a second spring 20 , the top of the second spring 20 is connected to the bottom of the chassis 1 , and the bottom of the second spring 20 is connected to the top of the movable arm 2 .

[0029] By arranging the second spring 20 between the movable arm 2 and the chassis 1, the elasticity of the second spring 20 is utilized to provide additional support and stability for the movable arm 2. When the road surface is uneven, the second spring 20 will generate elastic force when being compressed or stretched, helping to absorb and buffer the impact and vibration from the road surface, which helps to reduce the vibration of the vehicle body and improve the driving stability.

[0030] Preferably, the movable arm 2 is made of aluminum alloy material, the middle part of which is hollow, and a second bearing ring 21 is provided at the connection between the movable arm 2 and the axle 3, one end of the movable arm 2 is connected to the outer ring of the second bearing ring 21, and the connecting block 17 is connected to the inner ring of the bearing ring.

[0031] By adopting aluminum alloy material and hollow setting, the movable arm 2 achieves the requirements of light weight and high strength, improving the overall performance of the chassis 1, and the design of the second bearing ring 21 further enhances the flexibility and stability of the movable arm 2, enabling it to better adapt to different road conditions and driving requirements.

[0032] Preferably, the first spring 7 is externally covered with a dust cover 22 , the inner wall of the upper end of the dust cover 22 is connected to the side wall of the upper spring pad 8 , and the inner wall of the lower end of the dust cover 22 is connected to the side wall of the lower spring pad 9 .

[0033] The first spring 7 has a dust cover 22 on the outside, and the upper inner wall of the dust cover 22 is connected to the side wall of the spring pad, and the lower inner wall is connected to the side wall of the lower spring pad. This design can protect the spring, prevent dust and debris from entering the inside of the spring, and ensure its normal use.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A chassis with shock absorption function, characterized in that: The invention comprises a chassis, a movable arm, an axle, and a shock absorbing device, wherein the chassis is located above the axle, the movable arm is symmetrically arranged on both sides of the axle, and the end thereof away from the axle is connected to a wheel, the shock absorbing device comprises a piston rod housing, a piston rod, a first spring, an upper spring pad, a lower spring pad, a bracket, a first bearing ring, a nut, and a motor, one end of the piston rod is penetrated into the piston rod housing, and the other end thereof is connected to the top of the lower spring pad, the first spring is sleeved on the piston rod housing, the top end of the first spring is connected to the bottom of the upper spring pad, and the bottom end thereof is connected to the top end of the lower spring pad, the piston rod housing is provided with a thread, and the piston rod outer The shell is threaded with a nut, the first bearing ring is sleeved on the piston rod shell, the outer wall of the nut is connected to the inner ring of the first bearing ring, the bracket is sleeved on the piston rod shell and connected to the top of the upper spring pad, the outer ring of the first bearing ring is connected to the middle part of the bracket, a motor is provided on the top of the bracket, a rack is provided on the top of the nut, the rack is arranged in a ring shape, a gear is connected to the output shaft of the motor, the gear is meshed with the rack, connecting ends are provided on the top of the piston rod shell and the bottom of the lower spring pad, the connecting end on the top of the piston rod shell is connected to the axle, and the connecting end at the bottom of the lower spring pad is connected to the movable arm.

2. A chassis with shock absorption function according to claim 1, characterized in that: Connecting blocks are arranged on both sides of the axle, and the movable arms are rotatably connected to the connecting blocks on both sides of the axle.

3. A chassis with shock absorption function according to claim 1, characterized in that: A vibration sensor is arranged inside the movable arm, and a controller is arranged at the bottom of the vehicle disc. The controller is electrically connected with the motor and the vibration sensor.

4. The chassis with shock absorption function according to claim 1, characterized in that: The movable arm is connected to the chassis via a second spring, the top of the second spring is connected to the bottom of the chassis, and the bottom of the second spring is connected to the top of the movable arm.

5. The chassis with shock absorption function according to claim 2, characterized in that: The movable arm is made of aluminum alloy material, and the middle part is hollow. A second bearing ring is provided at the connection between the movable arm and the axle. One end of the movable arm is connected to the outer ring of the second bearing ring, and the connecting block is connected to the inner ring of the bearing ring.

6. The chassis with shock absorption function according to claim 1, characterized in that: The first spring outer sleeve is provided with a dust cover, the inner wall of the upper end of the dust cover is connected to the side wall of the upper spring pad, and the inner wall of the lower end of the dust cover is connected to the side wall of the lower spring pad.

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