Actuator device and vehicle

Abstract

The utility model relates to a kind of actuator and vehicle, comprising: motor, screw rod assembly, transmission assembly, actuation upper support, tilting support and actuation lower support, motor is connected with screw rod assembly by transmission assembly transmission, screw rod assembly includes screw rod and screw sleeve, screw sleeve is connected with screw rod threadedly, and can be moved along the axial movement of screw rod when screw rod rotates;Actuation upper support is movably connected between screw rod and tilting support, and can rotate around tilting support when screw rod rotates;Actuation lower support is movably connected with screw sleeve;Wherein, along the axial of screw rod: transmission assembly and actuation lower support one-one correspond to the both ends of screw rod;Motor is located at the side of transmission assembly close to actuation lower support;Tilting support is spaced apart from the screw rod, and is correspondingly arranged in the middle region of the screw rod.The actuator of the scheme can realize tilting function under the condition that axial space is small.

Description

Technical Field

[0001] This application belongs to the field of transmission technology, specifically relating to an actuation device and a vehicle. Background Technology

[0002] Currently, hydraulic actuators have long dominated the heavy-duty field due to their high power density and high torque output characteristics. However, because hydraulic actuators require additional complex piping systems such as hydraulic pump stations, reservoirs, and cooling units, their overall space occupancy is extremely high, making them difficult to integrate in space-constrained environments. Utility Model Content

[0003] The purpose of this invention is to provide an actuating device and a vehicle, which can achieve a tilting function with a small axial space.

[0004] The first aspect of this utility model discloses an actuation device, comprising: a motor, a lead screw assembly, a transmission assembly, an upper actuation support, a tilting support, and a lower actuation support. The motor and the lead screw assembly are connected via the transmission assembly. The lead screw assembly includes a screw rod and a threaded sleeve. The threaded sleeve is threadedly connected to the screw rod and can move along the axial direction of the screw rod when it rotates. The upper actuation support is movably connected between the screw rod and the tilting support and can rotate around the tilting support when the screw rod rotates. The lower actuation support is movably connected to the threaded sleeve. Along the axial direction of the screw rod: the transmission assembly and the lower actuation support are located at opposite ends of the screw rod; the motor is located on the side of the transmission assembly closer to the lower actuation support; the tilting support is spaced apart from the screw rod and is positioned corresponding to the middle region of the screw rod.

[0005] In one exemplary embodiment, the transmission assembly includes a driving gear and a driven gear that mesh with each other, the drive shaft of the motor is drivenly connected to the driving gear, and the screw is drivenly connected to the driven gear, thereby enabling the motor and the transmission assembly to be arranged in parallel, greatly reducing the axial dimension of the actuator.

[0006] In one exemplary embodiment, the transmission assembly further includes a planetary gear train, which is connected to the driven gear, and the screw is connected to the planetary gear train, thereby converting the high-speed and low-torque force output by the motor into low-speed and high-torque force.

[0007] In one exemplary embodiment, the actuating upper support includes an actuating upper bracket, a tilting member, and a first joint bearing. The actuating upper bracket is connected to the screw drive, the tilting member is rotatably connected to the tilting support, and the first joint bearing is connected between the actuating upper bracket and the tilting member, which can prevent the actuating upper bracket and the tilting member from jamming due to vehicle vibration.

[0008] In one exemplary embodiment, the tilting member is provided with a first mounting cavity, the first spherical bearing is located in the first mounting cavity, the outer ring of the first spherical bearing is connected to the cavity wall of the first mounting cavity, and the inner ring of the first spherical bearing is sleeved on the actuating upper support; the actuating upper support further includes a first locking nut, the first locking nut is sleeved on the actuating upper support, and can abut against the inner ring of the first spherical bearing when the actuating upper support moves outward from the first mounting cavity, so as to restrict the actuating upper support from disengaging from the first mounting cavity.

[0009] In one exemplary embodiment, the actuating upper support further includes a first deep groove ball bearing, the outer ring of which is fixedly connected to the actuating upper bracket; the lead screw assembly further includes an intermediate connector, which includes a first connecting post coaxially arranged with the screw and a second connecting post perpendicular to the first connecting post. The first connecting post is rigidly connected to the screw, and the second connecting post is connected to the inner ring of the first deep groove ball bearing and can rotate together with the inner ring of the first deep groove ball bearing relative to the outer ring of the first deep groove ball bearing, thereby avoiding the eccentric rotation of the screw and causing the input end of the planetary gear train to bear additional bending moment.

[0010] In one exemplary embodiment, the actuating lower support includes an actuating lower bracket, a second spherical bearing, and a fixed hinge support. The actuating lower bracket is movably connected to the threaded sleeve, and the second spherical bearing is connected between the actuating lower bracket and the fixed hinge support. When the fixed hinge support is fixed, it provides a reaction force support point, while the second spherical bearing allows the actuating lower bracket to counteract part of the bending moment generated during tilting.

[0011] In one exemplary embodiment, the fixed hinge support is provided with a second mounting cavity, the second spherical bearing is located in the second mounting cavity, the outer ring of the second spherical bearing is connected to the cavity wall of the second mounting cavity, and the inner ring of the second spherical bearing is sleeved on the actuating lower support; the actuating lower support further includes a second locking nut, the second locking nut is sleeved on the actuating lower support, and can abut against the inner ring of the second spherical bearing when the actuating lower support moves outward toward the second mounting cavity, so as to restrict the actuating lower support from disengaging from the second mounting cavity.

[0012] In one exemplary embodiment, the actuating lower support further includes a lower support needle roller bearing, which is located in the second mounting cavity and spaced apart from the second spherical bearing; the inner ring of the lower support needle roller bearing is sleeved on the actuating lower bracket, and the outer ring of the lower support needle roller bearing is fixedly connected to the cavity wall of the second mounting cavity, which can support the actuating lower support and facilitate the rotation of the actuating lower support.

[0013] The second aspect of this utility model discloses a vehicle including the aforementioned actuation device.

[0014] The present invention has the following beneficial effects: In this invention, the actuating device uses the lower actuating support as a rigid support point. A motor drives a lead screw assembly, converting the screw's rotation into the axial movement of the threaded sleeve. This, in turn, pushes the upper actuating support to rotate around the tilting support, thus achieving the tilting function of the actuating device. Furthermore, the transmission assembly and the lower actuating support are located at opposite ends of the screw's axial direction. The motor is located on the transmission assembly near the lower actuating support. The tilting support is spaced apart from the screw and positioned in the middle region of the screw, significantly reducing the axial dimension of the actuating device (i.e., the screw's axial direction). Therefore, this actuating device can achieve a tilting function with limited axial space.

[0015] It should be understood that the above general description and the following detailed description are merely exemplary and illustrative, and do not limit the application. Attached Figure Description

[0016] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort. The drawings herein are for illustrating the inventive concept of this application and are not entirely equivalent to the structure of the actual product protected by this application.

[0017] Figure 1 A three-dimensional structural schematic diagram of the actuation device in an embodiment of the present invention is shown.

[0018] Figure 2 A cross-sectional view of the actuation support of the actuation device in an embodiment of this utility model is shown.

[0019] Explanation of reference numerals in the attached figures: 1. Support plate; 2. Motor; 3. Drive gear; 4. Driven gear; 5. Planetary gear train; 6. Intermediate connecting piece; 7. Bolt; 8. First deep groove ball bearing; 9. Upper bracket end cover; 10. Actuating upper bracket; 11. Screw; 12. Threaded sleeve; 13. Second deep groove ball bearing; 14. Lower bracket end cover; 15. Actuating lower bracket; 16. Lower bearing seat end cover; 17. Fixed hinge support; 18. Upper bearing seat end cover; 19. Tilting upper part; 20. Tilting lower part; 21. Tilting needle roller bearing; 22. Tilting support; 23. Lower support needle roller bearing; 24. Second locking nut; 25. Second spherical bearing. Detailed Implementation

[0020] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided to make this application more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art.

[0021] Furthermore, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. Numerous specific details are provided in the following description to give a thorough understanding of embodiments of this application. However, those skilled in the art will recognize that the technical solutions of this application can be practiced without one or more of the specific details, or other methods, components, apparatuses, steps, etc., can be employed. In other instances, well-known methods, apparatuses, implementations, or operations are not shown or described in detail to avoid obscuring various aspects of this application.

[0022] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. It should be noted that the technical features involved in the various embodiments described below can be combined with each other as long as they do not conflict with each other. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present application, and should not be construed as limiting the present application.

[0023] Combination Figure 1 and Figure 2 As shown, this embodiment provides an actuation device that can achieve tilting function with a small axial space.

[0024] The actuation device includes a motor 2, a lead screw assembly, a transmission assembly, an upper actuation support, a tilting support 22, and a lower actuation support. The motor 2 and the lead screw assembly are connected via the transmission assembly. The lead screw assembly includes a screw 11 and a threaded sleeve 12. The threaded sleeve 12 is threadedly connected to the screw 11 and can move along the axial direction of the screw 11 when the screw 11 rotates. The upper actuation support is movably connected between the screw 11 and the tilting support 22 and can rotate around the tilting support 22 when the screw 11 rotates. The lower actuation support is movably connected to the threaded sleeve 12. Along the axial direction of the screw 11: the transmission assembly and the lower actuation support are located at opposite ends of the screw 11; the motor 2 is located on the side of the transmission assembly closer to the lower actuation support; the tilting support 22 is spaced apart from the screw 11 and is positioned in the middle area of ​​the screw 11.

[0025] It should be understood that "motor 2 is located on the side of the transmission assembly closer to the actuation support" means that the motor 2 is arranged on the side of the transmission assembly facing the actuation support. In other words, after the motor 2 is arranged in the actuation device, the maximum length of the whole consisting of motor 2, transmission assembly and screw 11 is only the maximum length of the whole consisting of transmission assembly and screw 11.

[0026] Furthermore, "the tilting support 22 is spaced apart from the screw 11 and is positioned in the middle area of ​​the screw 11" means that the tilting support 22 is arranged radially along the screw 11 and positioned axially along the screw 11 in the middle position. Similarly, after the tilting support 22 is arranged in the actuating device, the maximum length of the tilting support 22 and the screw 11 is the maximum length of the screw 11 itself.

[0027] In this invention, the actuating device uses the lower actuating support as a rigid support point, and then drives the lead screw assembly via the motor 2, converting the rotation of the screw 11 into the axial movement of the threaded sleeve 12, thereby pushing the upper actuating support to rotate around the tilting support 22, thus realizing the tilting function of the actuating device. Furthermore, the transmission assembly and the lower actuating support are located at opposite ends of the screw 11 along its axial direction, the motor 2 is located on the side of the transmission assembly closer to the lower actuating support, and the tilting support 22 is spaced apart from the screw 11 and positioned corresponding to the middle region of the screw 11, thereby significantly compressing the axial dimension of the actuating device (i.e., the axial direction of the screw 11). Therefore, this actuating device can achieve the tilting function with limited axial space.

[0028] In an exemplary embodiment of this application, the actuating device further includes a support plate 1, which is connected to the housing of the motor 2 and the transmission assembly, and is used to support the motor 2 and the transmission assembly.

[0029] In an exemplary embodiment of this application, the transmission assembly includes a driving gear 3 and a driven gear 4 that mesh with each other, the drive shaft of the motor 2 is connected to the driving gear 3, and the screw 11 is connected to the driven gear 4.

[0030] For example, the drive shaft of motor 2 is parallel to screw 11, and both are connected to the drive gear 3 and driven gear 4 from the same side along the axial direction of the transmission assembly.

[0031] It should be understood that by setting the driving gear 3 and the driven gear 4, the motor 2 and the lead screw assembly can be arranged in parallel, which greatly reduces the axial dimension of the actuator.

[0032] In an exemplary embodiment of this application, the transmission assembly further includes a planetary gear train 5, which is connected to the driven gear 4, and the screw 11 is connected to the planetary gear train 5.

[0033] It should be understood that the planetary gear train 5, the driving gear 3, and the driven gear 4 can together form a transmission component that serves as a speed reducer. After the motor 2 and the screw 11 are connected through the transmission component that serves as the speed reducer, the high speed and low torque output of the motor 2 can be converted into low speed and high torque.

[0034] For example, the transmission ratio between the driving gear 3 and the driven gear 4 can be approximately 1:3 to 1:5, and the reduction ratio of the planetary gear system 5 can be approximately 1:10 to 1:20.

[0035] It should be understood that a planetary gear train (5) refers to a gear system where the axis of rotation is not fixed and is mounted on a rotatable support. Besides rotating around its own axis like a fixed-axis gear, the planetary gear train (5) also allows its axis of rotation to rotate around the axes of other gears along with the planet carrier. The rotation around its own axis is called "rotation," and the rotation around the axes of other gears is called "revolution." In an exemplary embodiment of this application, the actuating upper support includes an actuating upper bracket 10, a tilting member, and a first joint bearing. The actuating upper bracket 10 is drivenly connected to the screw 11, the tilting member is rotatably connected to the tilting support 22, and the first joint bearing is connected between the actuating upper bracket 10 and the tilting member.

[0036] Spherical plain bearings are a type of spherical sliding bearing. Their sliding contact surfaces consist of an inner spherical surface and an outer spherical surface, allowing them to rotate and oscillate at any angle during movement. They are manufactured using various special processes such as surface phosphating, burring, padding, and spraying. Spherical plain bearings are characterized by high load capacity, impact resistance, corrosion resistance, wear resistance, self-aligning properties, and good lubrication.

[0037] It should be understood that when the first joint bearing is connected between the upper actuating bracket 10 and the tilting component, the upper actuating bracket 10 can have a rotational degree of freedom around its own axis. Furthermore, through the cooperation of the inner spherical ring and the outer ring of the first joint bearing, the upper actuating bracket 10 can produce slight displacements in the other two rotational directions, thereby reducing the compressive stress on the upper actuating bracket 10 to a certain extent and preventing the upper actuating bracket 10 and the tilting component from jamming due to vehicle vibration.

[0038] Furthermore, the tilting component includes an upper tilting component 19 and a lower tilting component 20. The lower tilting component 20 is connected between the upper tilting component 19 and the tilting support 22. The overall outline of the upper tilting component 19 and the lower tilting component 20 is approximately "L" shaped.

[0039] For example, the actuating device also includes a tilting needle roller bearing 21, the outer ring of which is fixedly connected to the tilting support 22, and the inner ring of which is fixedly connected to the tilting lower part 20.

[0040] It should be understood that a needle roller bearing (21) is a roller bearing with cylindrical rollers that are both thin and long relative to their diameter. These rollers are called needle rollers. Despite having a small cross-section, the bearing still has a high load-carrying capacity. Needle roller bearings are equipped with thin and long rollers (roller diameter D≤5mm, L / D≥2.5, where L is the roller length), so the radial structure is compact. When its inner diameter and load capacity are the same as other types of bearings, its outer diameter is the smallest, making it particularly suitable for support structures where radial installation dimensions are limited.

[0041] Furthermore, the tilting upper part 19 is provided with a first mounting cavity, a first spherical bearing is located in the first mounting cavity, the outer ring of the first spherical bearing is connected to the cavity wall of the first mounting cavity, and the inner ring of the first spherical bearing is sleeved on the actuating upper support 10; the actuating upper support also includes a first locking nut, which is sleeved on the actuating upper support 10 and can abut against the inner ring of the first spherical bearing when the actuating upper support 10 moves out of the first mounting cavity, so as to restrict the actuating upper support 10 from disengaging from the first mounting cavity.

[0042] Furthermore, the actuating upper support also includes an upper bearing housing end cover 18, which is connected to the tilting upper part 19 and is used to seal the first joint bearing in the first mounting cavity.

[0043] It should be understood that the upper bearing housing end cover 18 and the first locking nut are respectively located on both sides of the first spherical bearing along the axial direction of the first spherical bearing. Therefore, after the actuating upper bracket 10 passes through the upper bearing housing end cover 18 and is connected to the inner ring of the first spherical bearing with an interference fit, the actuating upper bracket 10 can be restricted from pulling the first spherical bearing out of the first mounting cavity by the upper bearing housing end cover 18. At the same time, after the first locking nut is locked on the actuating upper bracket 10, the actuating upper bracket 10 can also be restricted from disengaging from the inner ring of the first spherical bearing by the first locking nut.

[0044] In other words, the through hole of the upper bearing housing end cover 18 for the actuating upper bracket 10 to pass through is smaller than the diameter of the first spherical bearing, and the outer diameter of the first locking nut is larger than the inner ring diameter of the first spherical bearing.

[0045] In an exemplary embodiment of this application, the actuating upper support further includes a first deep groove ball bearing 8, the axial direction of which intersects (e.g., is perpendicular to) the axial direction of the screw 11, and the outer ring of the first deep groove ball bearing 8 is fixedly connected to the actuating upper bracket 10; the lead screw assembly further includes an intermediate connector 6, which includes a first connecting post coaxially arranged with the screw 11 and a second connecting post perpendicular to the first connecting post. The first connecting post is rigidly connected to the screw 11, and the second connecting post is connected to the inner ring of the first deep groove ball bearing 8 and can rotate relative to the outer ring of the first deep groove ball bearing 8 together with the inner ring of the first deep groove ball bearing 8.

[0046] One end of the first connecting post of the intermediate connector 6 can be inserted into both the sun gear and the driven gear 4 of the planetary gear train 5 and is fixedly connected to both the sun gear and the driven gear 4 of the planetary gear train 5; the other end of the first connecting post is rigidly connected to the screw 11.

[0047] Furthermore, there are two first deep groove ball bearings 8, which are arranged opposite to each other, and the outer rings of the two first deep groove ball bearings 8 are fixedly connected to the actuating upper bracket 10. The two ends of the second connecting column are respectively fixedly connected to the inner rings of the two first deep groove ball bearings 8.

[0048] It should be understood that, through the cooperation between the first deep groove ball bearing 8 and the intermediate connecting member 6, the rotational accuracy of the screw 11 can be ensured by the first deep groove ball bearing 8 when the screw 11 is rotated by the intermediate connecting member 6, so as to avoid the screw 11 rotating eccentrically and causing the input end of the planetary gear train 5 to bear additional bending moment.

[0049] Furthermore, the actuating upper support also includes an upper support end cover 9, which is detachably connected to the actuating upper support 10 by bolts 7, and a first deep groove ball bearing 8 is installed between the upper support end cover 9 and the actuating upper support 10.

[0050] It should be understood that the upper bracket end cap 9 is used to cover the first deep groove ball bearing 8.

[0051] In an exemplary embodiment of this application, the actuating lower support includes an actuating lower bracket 15, a second joint bearing 25, and a fixed hinge support 17. The actuating lower bracket 15 is movably connected to the threaded sleeve 12, and the second joint bearing 25 is connected between the actuating lower bracket 15 and the fixed hinge support 17.

[0052] Furthermore, the actuating lower support also includes a second deep groove ball bearing 13. The actuating lower bracket 15 is fixedly connected to the inner ring of the second deep groove ball bearing 13, and the threaded sleeve 12 is fixedly connected to the outer ring of the second deep groove ball bearing 13. The axial direction of the second deep groove ball bearing 13 intersects (e.g., is perpendicular to) the axial direction of the threaded sleeve 12. It should be understood that when the fixed hinge support 17 is fixed, the fixed hinge support 17 serves to provide a support point for the reaction force, while the second joint bearing 25 and the second deep groove ball bearing 13 enable the lower support 15 to offset part of the bending moment generated during the tilting action.

[0053] Furthermore, the actuating lower support also includes a lower support end cover 14, which is detachably connected to the actuating lower support 15 by bolts 7, and a second deep groove ball bearing 13 is installed between the lower support end cover 14 and the actuating lower support 15.

[0054] It should be understood that the lower support end cap 14 is used to cover the second deep groove ball bearing 13.

[0055] Furthermore, the fixed hinge support 17 is provided with a second mounting cavity, the second spherical bearing 25 is located in the second mounting cavity, the outer ring of the second spherical bearing 25 is connected to the cavity wall of the second mounting cavity, and the inner ring of the second spherical bearing 25 is sleeved on the actuating lower support 15; the actuating lower support also includes a second locking nut 24, the second locking nut 24 is sleeved on the actuating lower support 15, and can abut against the inner ring of the second spherical bearing 25 when the actuating lower support 15 moves out of the second mounting cavity, so as to restrict the actuating lower support 15 from disengaging from the second mounting cavity.

[0056] Furthermore, the actuating lower support also includes a lower support needle roller bearing 23, which is located in the second mounting cavity and spaced apart from the second spherical bearing 25; the inner ring of the lower support needle roller bearing 23 is sleeved on the actuating lower bracket 15, and the outer ring of the lower support needle roller bearing 23 is fixedly connected to the cavity wall of the second mounting cavity.

[0057] It should be understood that the lower support needle roller bearing 23 is designed to support the actuating lower support and facilitate its rotation.

[0058] Furthermore, the actuating lower support also includes a lower bearing housing end cover 16, which is connected to the fixed hinge support 17 and is used to seal the second spherical bearing 25 in the second mounting cavity.

[0059] It should be understood that the function and working principle of the second joint bearing 25 and the second locking nut 24 can be referred to the function and working principle of the first joint bearing and the first locking nut, and will not be repeated here.

[0060] It should be noted that the internal structure of the upper and lower actuation supports is the same, the main difference being that the lower actuation support has an independent fixed hinge support 17.

[0061] In this invention, the actuating device uses the lower actuating support as a rigid support point, and then drives the lead screw assembly through the motor 2 to convert the rotation of the screw 11 into the axial movement of the threaded sleeve 12, thereby pushing the upper actuating support to rotate around the tilting support 22 to achieve the tilting function of the actuating device. Furthermore, the transmission assembly and the lower actuating support are located at opposite ends of the screw 11 along its axial direction, the motor 2 is located on the transmission assembly near the lower actuating support, and the tilting support 22 is located on the upper actuating support adjacent to the lower actuating support, thus significantly compressing the axial dimension of the actuating device (i.e., the axial dimension of the screw 11).

[0062] Furthermore, the transmission assembly includes a driving gear 3, a driven gear 4, and a planetary gear train 5. It has a compact structure, a large transmission ratio, light weight, and high transmission efficiency, avoiding the poor stability of tilting action caused by the direct connection of the motor 2 to the lead screw assembly.

[0063] Furthermore, both the upper actuating support 10 and the lower actuating support 15 have a degree of rotational freedom around their own axis. The cooperation between the first joint bearing and the upper actuating support 10 and the second joint bearing 25 and the lower actuating support 15 allows the upper actuating support 10 and the lower actuating support 15 to produce slight displacements in the other two rotational directions, which reduces the compressive stress on the upper actuating support 10 and the lower actuating support 15 to a certain extent, while avoiding jamming of the upper actuating support 10 and the lower actuating support 15 due to vehicle vibration. In addition, both the screw 11 and the threaded sleeve 12 have two rotational degrees of freedom, which rotate around the axis of the first deep groove ball bearing 8 and the axis of the lower support needle roller bearing 23. The released degrees of freedom offset some of the bending moment generated during the tilting operation to a certain extent.

[0064] This embodiment also provides a vehicle including the aforementioned actuation device.

[0065] Among them, the actuation device can be applied to the roof, trunk opening and closing and / or suspension of the vehicle.

[0066] For other aspects of the vehicle's structure, please refer to existing technology; they will not be elaborated upon here.

[0067] In this application, unless otherwise expressly specified and limited, the terms "assembly," "connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0068] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. "A plurality of" means two or more, unless otherwise explicitly specified. The terms "some embodiments," "exemplarily," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application.

[0069] The illustrative expressions of the terms used above do not necessarily refer to the same embodiments or examples. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, those skilled in the art can combine and integrate the different embodiments or examples described herein, as well as the features of those different embodiments or examples, without contradiction.

[0070] Although embodiments of this application have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application. Therefore, any changes or modifications made in accordance with the claims and description of this application should fall within the scope of the patent coverage of this application.

Claims

1. An actuating device, characterized in that, include: The system includes a motor, a lead screw assembly, a transmission assembly, an upper actuating support, a tilting support, and a lower actuating support. The motor and the lead screw assembly are connected via the transmission assembly. The lead screw assembly includes a screw and a threaded sleeve. The threaded sleeve is threadedly connected to the screw and can move along the axial direction of the screw when the screw rotates. The upper actuating support is movably connected between the screw and the tilting support and can rotate around the tilting support when the screw rotates. The actuating lower support is movably connected to the threaded sleeve; wherein... Along the axial direction of the screw: the transmission assembly and the actuating lower support are located at opposite ends of the screw; the motor is located on the side of the transmission assembly closer to the actuating lower support; the tilting support is spaced apart from the screw and is positioned corresponding to the middle area of ​​the screw.

2. The actuating device according to claim 1, characterized in that, The transmission assembly includes a driving gear and a driven gear that mesh with each other. The drive shaft of the motor is connected to the driving gear, and the screw is connected to the driven gear.

3. The actuating device according to claim 2, characterized in that, The transmission assembly also includes a planetary gear train, which is connected to the driven gear, and the screw is connected to the planetary gear train.

4. The actuating device according to claim 1, characterized in that, The actuating upper support includes an actuating upper bracket, a tilting member, and a first joint bearing. The actuating upper bracket is connected to the screw drive, the tilting member is rotatably connected to the tilting support, and the first joint bearing is connected between the actuating upper bracket and the tilting member.

5. The actuating device according to claim 4, characterized in that, The tilting component is provided with a first mounting cavity, the first spherical bearing is located in the first mounting cavity, the outer ring of the first spherical bearing is connected to the cavity wall of the first mounting cavity, and the inner ring of the first spherical bearing is sleeved on the actuating upper bracket. The actuating upper support also includes a first locking nut, which is sleeved on the actuating upper bracket and can abut against the inner ring of the first spherical bearing when the actuating upper bracket moves outward toward the first mounting cavity.

6. The actuating device according to claim 4, characterized in that, The actuating upper support also includes a first deep groove ball bearing, the outer ring of which is fixedly connected to the actuating upper bracket; The lead screw assembly further includes an intermediate connector, which includes a first connecting post coaxially arranged with the screw and a second connecting post perpendicular to the first connecting post. The first connecting post is rigidly connected to the screw, and the second connecting post is connected to the inner ring of the first deep groove ball bearing and can rotate relative to the outer ring of the first deep groove ball bearing together with the inner ring of the first deep groove ball bearing. The axial direction of the first deep groove ball bearing intersects with the axial direction of the screw.

7. The actuating device according to claim 1, characterized in that, The actuating lower support includes an actuating lower bracket, a second deep groove ball bearing, a second spherical bearing, and a fixed hinge support. The actuating lower bracket is connected to the inner ring of the second deep groove ball bearing, the threaded sleeve is connected to the outer ring of the second deep groove ball bearing, and the second spherical bearing is connected between the actuating lower bracket and the fixed hinge support. The axial direction of the second deep groove ball bearing intersects with the axial direction of the threaded sleeve.

8. The actuating device according to claim 7, characterized in that, The fixed hinge support is provided with a second mounting cavity, the second joint bearing is located in the second mounting cavity, the outer ring of the second joint bearing is connected to the cavity wall of the second mounting cavity, and the inner ring of the second joint bearing is sleeved on the actuating lower bracket. The actuating lower support also includes a second locking nut, which is sleeved on the actuating lower bracket and can abut against the inner ring of the second spherical bearing when the actuating lower bracket moves outward toward the second mounting cavity.

9. The actuating device according to claim 8, characterized in that, The actuating lower support also includes a lower support needle roller bearing, which is located in the second mounting cavity and spaced apart from the second spherical bearing. The inner ring of the lower support needle roller bearing is sleeved on the actuating lower bracket, and the outer ring of the lower support needle roller bearing is fixedly connected to the cavity wall of the second mounting cavity.

10. A vehicle, characterized in that, Includes the actuating device as described in any one of claims 1-9.

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