Damping lift suspension mechanism

Abstract

This utility model discloses a shock-absorbing and height-adjustable suspension mechanism, relating to the field of aviation ground equipment technology. It includes: a first rotating shaft, a swing arm, a second rotating shaft, a shock-absorbing mechanism, and a lifting mechanism. The top end of the swing arm is mounted on the vehicle chassis via the first rotating shaft, and the bottom end of the swing arm is used to mount the driving wheel. One end of the shock-absorbing mechanism is mounted on the vehicle chassis via the second rotating shaft, and the other end of the shock-absorbing mechanism is hinged to the bottom end of the swing arm to absorb the impact force generated by road bumps causing the swing arm to rotate. One end of the lifting mechanism is hinged to the vehicle chassis, and the other end is hinged to the shock-absorbing mechanism. The lifting mechanism is signal-connected to the vehicle's control system. The control system controls the lifting mechanism to rotate, which in turn rotates the swing arm to raise or lower the vehicle chassis. This shock-absorbing and height-adjustable suspension mechanism has a simple structure, effectively improves shock absorption, and effectively adapts to different road conditions.

Description

Technical Field

[0001] This utility model relates to the field of aviation ground equipment technology, and in particular to a shock-absorbing liftable suspension mechanism. Background Technology

[0002] In existing technologies, many suspension mechanisms often have certain limitations when facing different road conditions. For example, some suspension mechanisms cannot flexibly adjust the chassis height according to actual needs. When encountering rough roads, potholes, or needing to cross high obstacles, a low chassis is more susceptible to collision damage, and the vehicle's passability is also greatly limited.

[0003] Furthermore, some existing suspension systems lack sufficient shock absorption performance. When traversing bumpy roads, the vehicle body and loaded equipment experience significant impact forces. This not only affects ride comfort but can also lead to fatigue damage to the vehicle structure and loosening or even damage to the loaded equipment over the long term. Additionally, some suspension systems cannot ensure that all four wheels are in contact with the ground simultaneously on uneven surfaces. This can cause the vehicle to slip or swerve, potentially leading to deviation from its intended path and posing a significant safety hazard. Therefore, existing suspension systems struggle to simultaneously meet the demands for flexible height adjustment and efficient shock absorption. Utility Model Content

[0004] The purpose of this invention is to provide a shock-absorbing and height-adjustable suspension mechanism to solve the problems existing in the prior art. It has a simple structure, effectively improves the shock absorption effect, and effectively adapts to different road conditions.

[0005] To achieve the above objectives, this utility model provides the following solution:

[0006] This utility model provides a shock-absorbing and height-adjustable suspension mechanism, including: a first rotating shaft, a swing arm, a second rotating shaft, a shock-absorbing mechanism, and a lifting mechanism. The top end of the swing arm is mounted on the vehicle chassis via the first rotating shaft, and the swing arm can rotate around the axis of the first rotating shaft. The bottom end of the swing arm is used to mount a driving wheel. One end of the shock-absorbing mechanism is mounted on the vehicle chassis via the second rotating shaft, and the shock-absorbing mechanism can rotate around the axis of the second rotating shaft. The other end of the shock-absorbing mechanism is hinged to the bottom end of the swing arm to absorb the impact force generated by the rotation of the swing arm due to road bumps. One end of the lifting mechanism is hinged to the vehicle chassis, and the other end is hinged to the shock-absorbing mechanism. The lifting mechanism is signal-connected to the vehicle's control system. The control system controls the lifting mechanism to rotate, which in turn drives the shock-absorbing mechanism to rotate, thereby causing the swing arm to rotate, so that the vehicle chassis rises or falls.

[0007] Preferably, the shock absorption mechanism includes a shock absorption spring, a damper, and a connecting plate. One end of the damper is fixedly connected to the connecting plate, and the other end is hinged to the swing arm. The shock absorption spring is sleeved on the outside of the damper, and both ends of the shock absorption spring are fixedly connected to both ends of the damper. The end of the connecting plate away from the damper is mounted on the vehicle chassis via the second rotating shaft, and the middle part of the connecting plate is hinged to the lifting mechanism.

[0008] Preferably, the damper is a hydraulic damper.

[0009] Preferably, it also includes a flange seat, which is fixedly connected to the bottom end of the swing arm, and the flange seat is hinged to the end of the damper away from the connecting plate by bolts or pins.

[0010] Preferably, the lifting mechanism is a hydraulic cylinder, the output end of the hydraulic cylinder is hinged to the middle of the connecting plate, the fixed end of the hydraulic cylinder is hinged to the vehicle chassis, and the hydraulic cylinder is signal-connected to the vehicle's controller.

[0011] Preferably, the connecting plate is an arc-shaped strip, and its surface is arranged perpendicular to the second rotating shaft.

[0012] Preferably, the swing arm is a variable cross-section hollow beam structure.

[0013] This utility model also provides a chassis, including the shock-absorbing and height-adjustable suspension mechanism as described in any of the preceding claims.

[0014] The present invention achieves the following technical advantages over the prior art:

[0015] This invention provides a shock-absorbing, height-adjustable suspension mechanism and base. The swing arm can rotate flexibly relative to the vehicle chassis, allowing the driving wheels mounted at the bottom of the swing arm to adjust their posture according to road conditions, laying the foundation for subsequent shock absorption and chassis height adjustment functions. By rotating around a first pivot, the driving wheels can adapt to different road surface bumps and undulations, reducing the impact of vehicle swaying caused by uneven road surfaces on the vehicle body and passengers. This connection method of the shock-absorbing mechanism enables it to effectively perform its shock absorption function. When road bumps cause the swing arm to rotate and generate impact force, the shock-absorbing mechanism can rotate around a second pivot and, through a hinged connection with the bottom of the swing arm, absorb and buffer these impact forces using its own elastic deformation and rotation. This reduces vibrations directly transmitted to the vehicle chassis, improves overall vehicle comfort, protects the vehicle body structure and interior equipment, and extends their service life. The connection method and control logic of the height adjustment mechanism enable flexible adjustment of the chassis height. The vehicle control system can precisely control the height adjustment of the height adjustment mechanism according to actual road conditions and driving needs. By hinged connection with the shock absorber and vehicle chassis, the lifting mechanism drives the shock absorber to rotate, which in turn causes the swing arm to rotate, enabling the vehicle chassis to rise or fall smoothly. This improves the vehicle's passability under different road conditions. For example, the chassis can be raised when encountering potholes or water accumulation, and the chassis height can be lowered on flat roads or when it is necessary to lower the center of gravity, without affecting the normal operation of the shock absorber. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A schematic diagram of the shock-absorbing and liftable suspension mechanism provided by this utility model;

[0018] In the diagram: 1. Swing arm; 2. Shock-absorbing spring; 3. Connecting plate; 4. Flange seat; 5. Lifting mechanism. Detailed Implementation

[0019] The technical solutions of the present utility model 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 utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] The purpose of this invention is to provide a shock-absorbing and height-adjustable suspension mechanism to solve the problems existing in the prior art. It has a simple structure, effectively improves the shock absorption effect, and effectively adapts to different road conditions.

[0021] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] Example 1

[0023] This embodiment provides a shock-absorbing, height-adjustable suspension mechanism, such as... Figure 1 As shown, the system includes: a first rotating shaft, a swing arm 1, a second rotating shaft, a shock absorption mechanism, and a lifting mechanism 5. The top of the swing arm 1 is mounted on the vehicle chassis via the first rotating shaft, and the swing arm 1 can rotate around the axis of the first rotating shaft. The bottom of the swing arm 1 is used to mount the driving wheel. One end of the shock absorption mechanism is mounted on the vehicle chassis via the second rotating shaft, and the shock absorption mechanism can rotate around the axis of the second rotating shaft. The other end of the shock absorption mechanism is hinged to the bottom of the swing arm 1 to absorb the impact force generated by the rotation of the swing arm 1 caused by road bumps. One end of the lifting mechanism 5 is hinged to the vehicle chassis, and the other end is hinged to the shock absorption mechanism. The lifting mechanism 5 is connected to the vehicle's control system. The control system controls the lifting mechanism 5 to rotate, which can drive the shock absorption mechanism to rotate, thereby driving the swing arm 1 to rotate, so that the vehicle chassis rises or falls. The swing arm 1 can rotate flexibly relative to the vehicle chassis, so that the driving wheel mounted at the bottom of the swing arm 1 can make corresponding attitude adjustments according to road conditions, laying the foundation for subsequent shock absorption and chassis lifting functions. By rotating around the first pivot, the driving wheels can adapt to different road surface bumps and undulations, reducing the impact of vehicle swaying caused by uneven road surfaces on the vehicle body and passengers. This connection method of the shock absorption mechanism enables it to effectively perform its shock absorption function. When road bumps cause the swing arm 1 to rotate and generate impact force, the shock absorption mechanism can rotate around the second pivot and, through a hinged connection with the bottom end of the swing arm 1, use its own elastic deformation and rotation to absorb and buffer these impact forces. This reduces the vibration directly transmitted to the vehicle chassis, improves the overall vehicle comfort, protects the vehicle body structure and interior equipment, and extends their service life. The connection method and control logic of the lifting mechanism 5 enable flexible adjustment of the chassis height. The vehicle control system can precisely control the lifting of the lifting mechanism 5 according to actual road conditions and driving needs. By hinged connection with the shock absorption mechanism and vehicle chassis, the lifting mechanism 5 drives the shock absorption mechanism to rotate, which in turn causes the swing arm 1 to rotate, so that the vehicle chassis can be raised or lowered smoothly, improving the vehicle's passability under different road conditions. For example, the chassis can be raised when encountering potholes, water accumulation, or other road conditions, and the chassis height can be lowered when on flat roads or when it is necessary to lower the center of gravity, without affecting the normal operation of the shock absorption mechanism.

[0024] In a preferred embodiment, the shock absorption mechanism includes a shock absorber spring 2, a damper, and a connecting plate 3. One end of the damper is fixedly connected to the connecting plate 3, and the other end is hinged to the swing arm 1. The shock absorber spring 2 is sleeved on the outside of the damper, and both ends of the shock absorber spring 2 are fixedly connected to the two ends of the damper, respectively. The end of the connecting plate 3 away from the damper is mounted on the vehicle chassis via a second pivot, and the middle part of the connecting plate 3 is hinged to the lifting mechanism 5. This specific structural design of the shock absorption mechanism further enhances the shock absorption effect. The shock absorber spring 2 and the damper work together. The shock absorber spring 2 is mainly responsible for absorbing impact force and providing a buffering effect, while the damper controls the extension and retraction speed of the shock absorber spring 2 to prevent excessive rebound or excessive vibration amplitude. The combination of the two can quickly and effectively suppress the vibration generated by road bumps and improve the smoothness of vehicle driving. The connecting plate 3 not only serves as a connecting component but also ensures the stable transmission of force between various components during the shock absorption process, making the overall shock absorption mechanism work stably and reliably.

[0025] In a preferred embodiment, the damper is a hydraulic damper, which has excellent damping characteristics and whose damping force can be precisely adjusted according to actual conditions. Compared with ordinary dampers, hydraulic dampers can more accurately adjust the damping effect, providing appropriate damping force under both slight bumps and severe vibrations, effectively controlling the response speed and vibration attenuation of the damping system, and further improving ride comfort and vehicle stability.

[0026] In a preferred embodiment, the shock-absorbing adjustable suspension mechanism further includes a flange seat 4, which is fixedly connected to the bottom end of the swing arm 1. The flange seat 4 is hinged to the end of the damper away from the connecting plate 3 via bolts or pins. The flange seat 4 enhances the reliability and stability of the connection between the swing arm 1 and the damper. The hinged connection via bolts or pins ensures stable transmission of power and damping force between the swing arm 1 and the damper during vehicle operation. During damping, the movement of the swing arm 1 is accurately transmitted to the damper, and the feedback force of the damper is effectively applied to the swing arm 1, making the entire damping system operate more stably and efficiently.

[0027] In a preferred embodiment, the lifting mechanism 5 is a hydraulic cylinder. The output end of the hydraulic cylinder is hinged to the middle of the connecting plate 3, and the fixed end of the hydraulic cylinder is hinged to the vehicle chassis. The hydraulic cylinder is also signal-connected to the vehicle's controller. Using a hydraulic cylinder as the lifting mechanism 5 has advantages such as high output force, stable operation, and precise control. The output and fixed ends of the hydraulic cylinder are hinged to the connecting plate 3 and the vehicle chassis, respectively, enabling stable movement of the shock absorber and swing arm 1 under the precise control of the vehicle controller, thus achieving precise adjustment of the vehicle chassis height. The stability of the hydraulic cylinder ensures the smoothness of the chassis lifting process, avoiding chassis swaying or uneven lifting, and improving the vehicle's ability to cope with different road conditions.

[0028] In a preferred embodiment, the connecting plate is an arc-shaped strip, with its surface perpendicular to the second pivot axis. Using an arc-shaped strip as the connecting plate, and with its surface perpendicular to the second pivot axis, increases the structural stability of the connecting plate when rotating around the second pivot axis. The arc design better accommodates the swaying of the shock absorber mechanism and changes in the direction of force transmission during operation, effectively dispersing the force and reducing the risk of deformation or damage to the connecting plate due to excessive local stress. Simultaneously, this arrangement optimizes the connection between the shock absorber mechanism, the vehicle chassis, and the lifting mechanism, making the force transmission path of the entire suspension system smoother. This helps improve the stability and reliability of the shock absorber and chassis lifting actions, thereby enhancing the safety and comfort of the vehicle during driving.

[0029] In a preferred embodiment, the control arm is a variable cross-section hollow beam structure. This structure effectively reduces the weight of the control arm while still bearing the loads of the wheels and various forces generated during vehicle movement. The variable cross-section design adjusts the cross-sectional dimensions according to the stress levels at different parts of the control arm; areas with high stress have larger cross-sectional dimensions to increase strength, while areas with low stress have smaller cross-sectional dimensions to reduce weight. The hollow beam structure further reduces weight while maintaining strength, lowering the overall vehicle weight and contributing to improved acceleration, braking, and fuel economy. Furthermore, the hollow beam structure provides cushioning and shock absorption, helping the entire suspension system improve damping performance and ride smoothness.

[0030] Example 2

[0031] This embodiment also provides a chassis, including the shock-absorbing and height-adjustable suspension mechanism as described in Embodiment 1. This chassis, integrating the shock-absorbing and height-adjustable suspension mechanism, possesses better overall performance. During driving, it can effectively absorb the impact of road bumps through the shock absorption system, providing a comfortable environment for passengers, while the height-adjustable mechanism 5 can flexibly adjust the chassis height according to actual road conditions, improving vehicle passability and driving stability. This integrated design allows the chassis to perform optimally in different scenarios, enhancing the overall adaptability and practicality of the vehicle.

[0032] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A shock absorbing lift hanger mechanism, characterized by: include: A first rotating shaft is rotatably connected to the vehicle chassis; A swing arm (1) is rotatably connected to the first rotating shaft at its top end so that it can rotate around the axis of the first rotating shaft. The bottom end of the swing arm (1) is used to mount a driving wheel. The second rotating shaft is arranged parallel to the first rotating shaft and is rotatably connected to the vehicle chassis; The shock absorption mechanism has one end rotatably connected to the second rotating shaft so as to be able to rotate around the axis of the second rotating shaft, and the other end of the shock absorption mechanism is hinged to the bottom end of the swing arm (1) to absorb the impact force generated by the road bumps that cause the swing arm (1) to rotate. as well as The lifting mechanism (5) is hinged at one end to the vehicle chassis and at the other end to the shock absorber. The lifting mechanism (5) is connected to the vehicle's control system. The control system controls the lifting mechanism (5) to rotate the shock absorber, which in turn rotates the swing arm (1) to raise or lower the vehicle chassis.

2. The shock-absorbing and height-adjustable suspension mechanism according to claim 1, characterized in that: The shock absorption mechanism includes a shock absorption spring (2), a damper, and a connecting plate (3). One end of the damper is fixedly connected to the connecting plate (3), and the other end is hinged to the swing arm (1). The shock absorption spring (2) is sleeved on the outside of the damper, and the two ends of the shock absorption spring (2) are fixedly connected to the two ends of the damper respectively. The end of the connecting plate (3) away from the damper is mounted on the vehicle chassis through the second rotating shaft. The middle part of the connecting plate (3) is hinged to the lifting mechanism (5).

3. The shock-absorbing and height-adjustable suspension mechanism according to claim 2, characterized in that: The damper is a hydraulic damper.

4. The shock-absorbing and height-adjustable suspension mechanism according to claim 3, characterized in that: It also includes a flange seat (4), which is fixedly connected to the bottom end of the swing arm (1). The flange seat (4) is hinged to the end of the damper away from the connecting plate (3) by bolts or pins.

5. The shock-absorbing and height-adjustable suspension mechanism according to claim 4, characterized in that: The lifting mechanism (5) is a hydraulic cylinder. The output end of the hydraulic cylinder is hinged to the middle of the connecting plate (3), the fixed end of the hydraulic cylinder is hinged to the vehicle chassis, and the hydraulic cylinder is connected to the vehicle controller signal.

6. The shock-absorbing and height-adjustable suspension mechanism according to claim 5, characterized in that: The connecting plate (3) is an arc-shaped strip, and its surface is arranged perpendicular to the second rotating shaft.

7. The shock-absorbing and height-adjustable suspension mechanism according to claim 6, characterized in that: The swing arm (1) is a variable cross-section hollow beam structure.

8. A chassis, characterized in that: Includes the shock-absorbing liftable suspension mechanism as described in any one of claims 1 to 7.

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