Vehicle air suspension damping device

Abstract

The invention discloses a vehicle air suspension damping device, and relates to the field of air suspensions.The vehicle air suspension damping device comprises an air spring body, an upper mounting assembly and a lower mounting assembly are connected to the air spring body, an air bag is fixedly connected to the inner side of the air spring body, a mounting support is connected to the upper portion of the air bag, and a motor support is fixedly connected to the inner side of the mounting support; a driving motor is fixedly connected to the upper portion of the motor support, a plurality of lower sliding grooves are fixedly connected to the mounting support, lower sliding blocks are slidably connected to the interiors of the lower sliding grooves, damping assemblies are fixedly connected to the lower sliding blocks, and the damping assemblies are matched with the tops of the inner sides of the air spring bodies. When the air spring is used, the damping spring can synchronously and coordinately move to different positions in the air spring body through driving of the driving motor, then the position of the damping spring can be adjusted in a targeted mode when the air spring faces different road conditions, and the optimal damping effect is achieved; and a more comfortable driving experience can be provided on a bumpy road surface.

Description

Technical Field

[0001] The invention relates to the field of air suspension, in particular to a vehicle air suspension shock absorbing device. Background Art

[0002] In the field of automobile shock absorption technology, there are many problems with the current automobile shock absorption system, which seriously affects the driving experience and vehicle performance. In particular, there are many difficulties in improving the air suspension.

[0003] Complex structure and high cost: Existing automobile shock absorption technology, especially the shock absorption system of some high-end models, adopts complex mechanical structure and electronic control system to achieve shock absorption function under various road conditions. These complex designs not only increase the number of parts and assembly difficulty, resulting in a significant increase in automobile manufacturing costs, but also make subsequent maintenance extremely inconvenient and the maintenance cost remains high.

[0004] The shock absorption effect is not ideal: It is difficult for traditional shock absorption systems to accurately adjust the position of the shock absorption spring according to different road conditions. On bumpy roads, such as rural dirt roads or dilapidated urban roads, the existing air springs do not completely lift and lower for shock absorption during the shock absorption process. Since the air springs use gas for shock absorption, they will produce relative offsets, so the shock absorption effect needs to be improved. This further causes the vehicle to vibrate significantly, and the driver and passengers will feel a strong sense of bumps, which greatly reduces the comfort. When the paint passes through construction sections and rural dirt roads, the shock absorption system cannot function well, causing the vehicle to vibrate greatly, which not only affects the riding experience of the occupants, but may also cause damage to the electronic equipment and precision instruments in the vehicle.

[0005] Therefore, those skilled in the art have proposed a vehicle air suspension shock absorbing device to solve the problems raised in the above background. Summary of the invention

[0006] The object of the present invention is to provide a vehicle air suspension shock absorbing device to solve the problems raised in the above background technology.

[0007] To achieve the above object, the present invention provides the following technical solutions: A vehicle air suspension shock absorbing device comprises an air spring body, an upper mounting assembly is connected to the top of the air spring body, a lower mounting assembly is connected to the bottom of the air spring body, an air bag is fixedly connected to the inside of the air spring body, a mounting bracket is connected above the air bag, a motor bracket is fixedly connected to the inside of the mounting bracket, a driving motor is fixedly connected to the top of the motor bracket, a plurality of lower sliding grooves are fixedly connected to the mounting bracket, lower sliding blocks are slidably connected inside the lower sliding grooves, shock absorbing assemblies are fixedly connected to the lower sliding blocks, the shock absorbing assemblies cooperate with the top of the inner side of the air spring body, and a synchronous driving assembly for synchronously driving the lower sliding block to move is also provided on the mounting bracket.

[0008] As a further solution of the present invention: the synchronous drive assembly includes a longitudinal rotating shaft, a driven bevel gear, a driving bevel gear and a driving plate, the driving bevel gear is fixedly connected to the driving motor rotor, the driven bevel gear is fixedly connected to the outside of the longitudinal rotating shaft, the driving bevel gear is meshed with the driven bevel gear, the driving plate is fixedly connected to the top of the longitudinal rotating shaft, and a plurality of arc-shaped driving grooves are provided on the driving plate, the number of the arc-shaped driving grooves is consistent with the number of the lower sliding grooves, and the arc-shaped driving grooves are used to drive the shock absorbing assembly to move closer to or away from the longitudinal rotating shaft.

[0009] As a further solution of the present invention: the shock absorbing assembly includes a longitudinal conduit fixedly connected to the lower sliding block, the top of the longitudinal conduit is fixedly connected to a lower end plate, the interior of the longitudinal conduit is fixedly connected to a shock absorbing vertical rod, a shock absorbing spring is sleeved on the outer side of the shock absorbing vertical rod, the bottom of the shock absorbing spring is fixedly connected to the lower end plate, the top of the shock absorbing vertical rod is fixedly connected to an upper end plate, the upper end of the shock absorbing spring is fixedly connected to the upper end plate, and the upper end plate cooperates with the top of the air spring body.

[0010] As a further solution of the present invention: a plurality of upper slide grooves are fixedly connected to the top of the air spring body, the number of the upper slide grooves is the same as the number of the lower slide grooves, and the upper end plates are all slidably connected to the upper slide grooves.

[0011] As a further solution of the present invention: the number of the lower sliding grooves, arc-shaped driving grooves and upper sliding grooves is 4-8, and they are distributed inside the air spring body in a rotationally symmetrical state.

[0012] As a further solution of the present invention: the driving motor is driven by a battery, the diameter of the active bevel gear is smaller than the diameter of the driven bevel gear, and the airbag is made of rubber.

[0013] As a further solution of the present invention: the upper mounting assembly, the lower mounting assembly and the air spring body are fixedly connected by bolts.

[0014] Compared with the prior art, the beneficial effects of the present invention are: the present invention has a simple structure and is easy to use. When in use, the shock-absorbing spring can be driven by the driving motor to move synchronously and coordinately to different positions in the air spring body. Then, when facing different road conditions, the position of the shock-absorbing spring can be adjusted in a targeted manner to obtain the best shock-absorbing effect. After being applied to automobiles, it can provide a more comfortable driving experience when facing bumpy roads. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of a vehicle air suspension shock absorbing device; Figure 2 It is a schematic diagram of the structure of a driving plate in a vehicle air suspension shock absorbing device; Figure 3 A schematic diagram of the distribution structure of a slide groove in a vehicle air suspension shock absorbing device; Figure 4 A schematic diagram of a longitudinal duct and a partial connection structure thereof in a vehicle air suspension shock absorbing device; In the figure: 1. air spring body; 2. upper mounting assembly; 3. lower mounting assembly; 4. airbag; 5. mounting bracket; 6. motor bracket; 7. driving motor; 8. lower slide groove; 9. lower slider; 10. shock absorbing assembly; 11. synchronous drive assembly; 12. longitudinal rotating shaft; 13. driven bevel gear; 14. driving bevel gear; 15. driving plate; 16. arc-shaped driving groove; 17. longitudinal guide tube; 18. lower end plate; 19. shock absorbing upright rod; 20. shock absorbing spring; 21. upper end plate; 22. upper slide groove. DETAILED DESCRIPTION

[0016] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0017] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0018] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0019] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0020] Example 1: Please refer to Figures 1 to 4A vehicle air suspension shock absorbing device comprises an air spring body 1, an upper mounting assembly 2 is connected to the top of the air spring body 1, a lower mounting assembly 3 is connected to the bottom of the air spring body 1, an air bag 4 is fixedly connected to the inside of the air spring body 1, a mounting bracket 5 is connected above the air bag 4, a motor bracket 6 is fixedly connected to the inside of the mounting bracket 5, a driving motor 7 is fixedly connected to the top of the motor bracket 6, a plurality of lower slide grooves 8 are fixedly connected to the mounting bracket 5, lower sliders 9 are slidably connected inside the lower slide grooves 8, shock absorbing assemblies 10 are fixedly connected to the lower sliders 9, the shock absorbing assemblies 10 cooperate with the top of the inner side of the air spring body 1, and a synchronous driving assembly 11 for synchronously driving the lower slider 9 to move is also provided on the mounting bracket 5.

[0021] When in use, the device is installed on the vehicle frame through the upper mounting component 2 and the lower mounting component 3. The supporting structures of the air spring body 1 during use are all existing. The vehicle needs to scan the ground through a laser radar or a camera during driving to obtain a ground image and make adjustments based on the image. The driving motor 7 is energized to rotate the active bevel gear 14, which drives the driven bevel gear 13 to rotate, and then drives the longitudinal rotating shaft 12 to rotate. The longitudinal rotating shaft 12 can drive the lower slider 9 to adjust its position through the arc-shaped driving groove 16 on the driving disk 15, and the shock-absorbing component 10 connected to the lower slider 9 can be adjusted to a suitable position, thereby achieving different shock-absorbing effects.

[0022] The synchronous drive assembly 11 includes a longitudinal rotating shaft 12, a driven bevel gear 13, a driving bevel gear 14 and a driving disk 15. The driving bevel gear 14 is fixedly connected to the rotor of the driving motor 7. The driven bevel gear 13 is fixedly connected to the outer side of the longitudinal rotating shaft 12. The driving bevel gear 14 is meshed with the driven bevel gear 13. The driving disk 15 is fixedly connected to the top of the longitudinal rotating shaft 12. A plurality of arcuate driving grooves 16 are provided on the driving disk 15. The number of the arcuate driving grooves 16 is consistent with the number of the lower sliding grooves 8. The arcuate driving grooves 16 are used to drive the shock absorbing assembly 10 to move closer to or away from the longitudinal rotating shaft 12.

[0023] The shock absorbing assembly 10 includes a longitudinal duct 17 fixedly connected to the lower slider 9, a lower end plate 18 is fixedly connected to the top of the longitudinal duct 17, a shock absorbing upright rod 19 is fixedly connected inside the longitudinal duct 17, a shock absorbing spring 20 is sleeved on the outer side of the shock absorbing upright rod 19, the bottom of the shock absorbing spring 20 is fixedly connected to the lower end plate 18, the top of the shock absorbing upright rod 19 is fixedly connected to the upper end plate 21, the upper end of the shock absorbing spring 20 is fixedly connected to the upper end plate 21, and the upper end plate 21 cooperates with the top inside the air spring body 1.

[0024] When encountering vibration, the shock absorbing assembly 10 starts to work. Before the shock absorbing assembly 10 works, it is moved to the shock absorbing position by the driving motor 7. After that, the vehicle is bumped, and the shock absorbing spring 20 is compressed to play a shock absorbing role. During the shock absorbing process, since the vibration is not vertical up and down, the tires of the independent suspension will produce a certain angle of deviation, and by adjusting the shock absorbing spring 20 to a suitable position, the vibration generated by this can be offset. When the vehicle is driving on a smooth road, the vibration mostly comes from the manhole covers and speed bumps on the road. At this time, the bumps are mostly vertical up and down. The shock absorbing spring 20 is located at various positions inside the airbag body 1 to achieve a shock absorbing effect.

[0025] Embodiment 2: This embodiment makes the following improvements on the basis of the previous embodiment: a plurality of upper slide grooves 22 are fixedly connected to the top of the air spring body 1 , the number of the upper slide grooves 22 is the same as the number of the lower slide grooves 8 , and the upper end plates 21 are all slidably connected in the upper slide grooves 22 .

[0026] The number of the lower sliding grooves 8 , the arc-shaped driving grooves 16 and the upper sliding grooves 22 is 4-8, and they are distributed inside the air spring body 1 in a rotationally symmetrical state.

[0027] The driving motor 7 is driven by a battery, the diameter of the driving bevel gear 14 is smaller than the diameter of the driven bevel gear 13, and the airbag 4 is made of rubber.

[0028] The upper mounting assembly 2, the lower mounting assembly 3 and the air spring body 1 are fixedly connected by bolts.

[0029] Working principle: When in use, the device is installed on the vehicle frame through the upper mounting assembly 2 and the lower mounting assembly 3. The supporting structures of the air spring body 1 during use are all existing. The vehicle needs to scan the ground through a laser radar or a camera during driving to obtain a ground image and adjust it according to the image. The driving motor 7 is energized to rotate the active bevel gear 14, and the active bevel gear 14 rotates to drive the driven bevel gear 13 to rotate, and then drives the longitudinal shaft 12 to rotate. The longitudinal shaft 12 can drive the lower slider 9 to adjust its position through the arc driving groove 16 on the driving disk 15, and the shock absorbing assembly 10 connected to the lower slider 9 can be adjusted to a suitable position, thereby achieving different shock absorbing effects. When encountering vibration, the shock absorbing assembly 10 starts to work. Before the shock absorbing assembly 10 works, it is moved to the shock absorbing position by the driving motor 7. After that, the vehicle is bumpy, and the shock absorbing spring 20 is compressed to play a shock absorbing role. During the shock absorbing process, since the vibration is not vertical up and down, the tires of the independent suspension will have a certain angle of deviation, and by adjusting the shock absorbing spring 20 to a suitable position, the vibration generated thereby can be offset. When the vehicle is traveling on a smooth road, vibrations mostly come from manhole covers and speed bumps on the road. At this time, the bumps are mostly vertical up and down. The shock-absorbing spring 20 is located at various positions inside the airbag body 1 to achieve a shock-absorbing effect.

[0030] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0031] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A vehicle air suspension damping device, comprising an air spring body (1), an upper mounting assembly (2) connected to the top of the air spring body (1), and a lower mounting assembly (3) connected to the bottom of the air spring body (1), characterized in that: An airbag (4) is fixedly connected to the inner side of the air spring body (1), a mounting bracket (5) is connected above the airbag (4), a motor bracket (6) is fixedly connected to the inner side of the mounting bracket (5), a driving motor (7) is fixedly connected above the motor bracket (6), a plurality of lower slide grooves (8) are fixedly connected to the mounting bracket (5), lower sliders (9) are slidably connected inside the lower slide grooves (8), a shock absorbing assembly (10) is fixedly connected to the lower sliders (9), the shock absorbing assembly (10) is matched with the inner top of the air spring body (1), and a synchronous driving assembly (11) for synchronously driving the lower slider (9) to move is also provided on the mounting bracket (5).

2. The vehicle air suspension shock absorbing device according to claim 1, characterized in that: The synchronous drive assembly (11) comprises a longitudinal rotating shaft (12), a driven bevel gear (13), a driving bevel gear (14) and a driving disk (15), wherein the driving bevel gear (14) is fixedly connected to the rotor of the driving motor (7), the driven bevel gear (13) is fixedly connected to the outside of the longitudinal rotating shaft (12), the driving bevel gear (14) meshes with the driven bevel gear (13), the driving disk (15) is fixedly connected to the top of the longitudinal rotating shaft (12), and a plurality of arc-shaped driving grooves (16) are formed on the driving disk (15), the number of the arc-shaped driving grooves (16) being the same as the number of the lower sliding grooves (8), and the arc-shaped driving grooves (16) are used to drive the shock absorbing assembly (10) to move closer to or away from the longitudinal rotating shaft (12).

3. The vehicle air suspension shock absorbing device according to claim 2, characterized in that: The shock absorbing assembly (10) comprises a longitudinal guide tube (17) fixedly connected to the lower slider (9); a lower end plate (18) is fixedly connected to the top of the longitudinal guide tube (17); a shock absorbing vertical rod (19) is fixedly connected inside the longitudinal guide tube (17); a shock absorbing spring (20) is sleeved on the outer side of the shock absorbing vertical rod (19); the bottom of the shock absorbing spring (20) is fixedly connected to the lower end plate (18); the top of the shock absorbing vertical rod (19) is fixedly connected to the upper end plate (21); the upper end of the shock absorbing spring (20) is fixedly connected to the upper end plate (21); and the upper end plate (21) matches the top of the air spring body (1).

4. The vehicle air suspension shock absorbing device according to claim 3, characterized in that: A plurality of upper slide grooves (22) are fixedly connected to the top of the air spring body (1), the number of the upper slide grooves (22) is the same as the number of the lower slide grooves (8), and the upper end plates (21) are all slidably connected to the upper slide grooves (22).

5. The vehicle air suspension shock absorbing device according to claim 1, characterized in that: The number of the lower sliding groove (8), the arc-shaped driving groove (16) and the upper sliding groove (22) is 4-8, and they are distributed inside the air spring body (1) in a rotationally symmetrical state.

6. The vehicle air suspension shock absorbing device according to claim 3, characterized in that: The driving motor (7) is driven by a battery, the diameter of the driving bevel gear (14) is smaller than the diameter of the driven bevel gear (13), and the airbag (4) is made of rubber.

7. The vehicle air suspension shock absorbing device according to claim 1, characterized in that: The upper mounting assembly (2), the lower mounting assembly (3) and the air spring body (1) are fixedly connected by bolts.

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