CN-121990199-A - Unmanned aerial vehicle lift cloud platform

CN121990199ACN 121990199 ACN121990199 ACN 121990199ACN-121990199-A

Abstract

The invention belongs to the technical field of unmanned aerial vehicles, and particularly relates to an unmanned aerial vehicle lifting tripod head, wherein when the height of a photoelectric pod needs to be regulated, a driving assembly drives a plurality of screw rods to synchronously rotate, nuts do linear motion along with the screw rods, a shock absorber fixing plate drives a whole shock absorption mechanism and the photoelectric pod to stably lift, a plurality of shock absorption elements arranged between the shock absorber fixing plate and a pod base can effectively buffer vibration from all directions, the star-shaped connecting plate and the lifting assembly work cooperatively, a transmission and supporting structure is optimized, the stability of a lifting process is ensured, the problem that the transmission structure of a traditional device is unreasonable is solved, the shock absorption elements are arranged below a bearing platform, the transmission path of vibration energy is optimized, the shock absorption effect is improved, and the hollow structure on an outer frame of the tripod head lightens the whole weight on the premise of ensuring the structural strength, so that the traditional tripod head is heavy, and the unification of light weight, high stability and excellent shock absorption performance is realized.

Inventors

GUAN RONGQIANG
ZHU JIHONG
YU JING
YUAN XIAMING
YANG BINJIE
LIU ZICHAO
Zong Kaining

Assignees

吉林工程技术师范学院

Dates

Publication Date: 20260508
Application Date: 20260309

Claims (10)

1. The unmanned aerial vehicle lifting cradle head is characterized by comprising a cradle head outer frame (100), a transmission lifting mechanism (200) and a damping mechanism (300); The transmission lifting mechanism (200) comprises a star-shaped connecting plate (7), a driving assembly and a plurality of lifting assemblies (400), wherein the lifting assemblies (400) are circumferentially arranged on the star-shaped connecting plate (7) at equal intervals, the star-shaped connecting plate (7) is fixedly connected with a tripod head outer frame (100), and the driving assembly is arranged on the star-shaped connecting plate (7) and is connected with the input ends of the lifting assemblies (400); The lifting assembly (400) comprises a screw rod (16) and nuts (17), wherein the screw rod (16) is in transmission connection with the driving assembly, the nuts (17) are in threaded fit with the screw rod (16), and a plurality of the nuts (17) are connected with a shock absorber fixing plate (21); the damping mechanism (300) comprises a pod base (23) and a plurality of damping elements (20), wherein the pod base (23) is arranged on the damper fixing plate (21), the pod base (23) is used for carrying an optoelectronic pod (24), and the plurality of damping elements (20) are arranged between the damper fixing plate (21) and the pod base (23); The cradle head outer frame (100) is provided with a hollowed-out structure for reducing weight.
2. The unmanned aerial vehicle lifting cradle head according to claim 1, wherein the driving assembly comprises a motor (13), the motor (13) is fixedly arranged on the star-shaped connecting plate (7), the output end of the motor (13) is coaxially fixedly connected with a driving wheel (8), the driving wheel (8) is connected with a plurality of driven wheels (9) through a belt (14) in a transmission manner, the driven wheels (9) are rotationally connected on the star-shaped connecting plate (7), the driven wheels (9) are circumferentially arranged at equal intervals, and the top ends of the screw rods (16) are in one-to-one correspondence with the driven wheels (9) and are coaxially fixedly connected.
3. The unmanned aerial vehicle lifting cloud platform of claim 1, wherein the lifting assembly (400) further comprises a guide rail (19), two bearing seats (25) are fixedly connected to one side of the guide rail (19), the two bearing seats (25) are respectively located at two ends of the guide rail (19), the screw rod (16) is rotationally connected with the two bearing seats (25) through two bearings (12), a sliding block (18) is slidably connected to the guide rail (19), and the sliding block (18) is fixedly connected with the nut (17) through a U-shaped block (15).
4. The unmanned aerial vehicle lifting tripod head of claim 1, wherein a plurality of shock absorption holes (26) are formed in the shock absorber fixing plate (21), the shock absorption holes (26) are circumferentially arranged at equal intervals, the top ends of shock absorption elements (20) are installed in the shock absorption holes (26), and the bottom ends of the shock absorption elements (20) are connected with the nacelle base (23).
5. The unmanned aerial vehicle lifting cradle head according to claim 2, wherein the star-shaped connecting plate (7) is provided with at least one adjusting clamping groove for installing a tensioning wheel shaft (11), the tensioning wheel shaft (11) is fixedly installed in the adjusting clamping groove through a locking nut, the tensioning wheel shaft (11) is coaxially and rotatably connected with a tensioning wheel (10), and the outer edge of the tensioning wheel (10) is abutted against the belt (14); The tensioning wheel shaft (11) is locked at different positions of the adjusting clamping groove through a locking nut so as to adjust the tensioning force of the tensioning wheel (10) on the belt (14).
6. The unmanned aerial vehicle lifting tripod head of claim 2, wherein the tripod head outer frame (100) comprises an outer frame (1), and the star-shaped connecting plate (7) is fixedly arranged in the outer frame (1).
7. The unmanned aerial vehicle lifting cradle head according to claim 6, wherein the outer frame (1) is further provided with a control module (4), a limit switch (6) and an electric regulator (3), the control module (4) is in signal connection with the electric regulator (3), the electric regulator (3) is electrically connected with the motor (13), and the limit switch (6) is configured to detect the position of the shock absorber fixing plate (21) and is in signal connection with the control module (4).
8. The unmanned aerial vehicle lifting cradle head of claim 7, wherein the external frame (1) is further provided with a laser radar (5) and an edge computing card (2), the laser radar (5) is arranged at the bottom of one side of the external frame (1), and the edge computing card (2) is in signal connection with the control module (4) and is used for processing data of the laser radar (5).
9. The unmanned aerial vehicle lifting tripod head of claim 7, wherein one side of the shock absorber fixing plate (21) is fixedly connected with a baffle (22), and the baffle (22) is arranged corresponding to the limit switch (6).
10. The unmanned aerial vehicle lifting tripod head of claim 1, wherein the shock absorbing element (20) is an elastic sphere.

Description

Unmanned aerial vehicle lift cloud platform Technical Field The invention belongs to the technical field of unmanned aerial vehicles, and particularly relates to an unmanned aerial vehicle lifting cradle head. Background In wide application scenes such as unmanned aerial vehicle is taken photo by plane, geological survey, electric power inspection and agricultural plant protection, the cloud platform is taken as the core component of carrying precision shooting and sensing equipment such as cameras, laser radars and the like, and the stability of the cloud platform directly determines the quality and the effectiveness of acquired data. However, during the flight process of the unmanned aerial vehicle, particularly when the unmanned aerial vehicle encounters complex airflow, performs maneuver or is in a high-speed cruising state, the engine running and aerodynamic effects of the unmanned aerial vehicle can cause continuous vibration of the engine body, and the vibration can be transmitted to the pan-tilt through the engine body structure, so that the shot images are blurred and dithered, and the data of the sensor are distorted, so that the operation effect is seriously influenced. In the prior art, although the unmanned aerial vehicle cradle head damping device has a certain damping effect, a plurality of defects to be solved still exist. Firstly, the transmission and the support structure of part of the device are unreasonable in design, and the transmission path of vibration energy cannot be effectively optimized, so that more vibration is still transmitted to shooting equipment, and the damping effect is poor. Secondly, many cradle head devices are heavy in whole because of pursuing structural strength, and the increase of endurance time and maneuvering performance generates remarkable negative additional load on the unmanned aerial vehicle, so that not only is the payload capacity of the cradle head devices sacrificed, but also the flight of the unmanned aerial vehicle is influenced. Therefore, an unmanned aerial vehicle lifting cradle head is provided. Disclosure of Invention The invention aims to provide an unmanned aerial vehicle lifting cradle head so as to solve the problems. In order to achieve the above object, the present invention provides the following solutions: an unmanned aerial vehicle lifting tripod head comprises a tripod head outer frame, a transmission lifting mechanism and a damping mechanism; The transmission lifting mechanism comprises a star-shaped connecting plate, a driving assembly and a plurality of lifting assemblies, wherein the lifting assemblies are circumferentially arranged on the star-shaped connecting plate at equal intervals; The lifting assembly comprises a screw rod and nuts, wherein the screw rod is in transmission connection with the driving assembly, the nuts are in threaded fit with the screw rod, and a plurality of nuts are connected with the shock absorber fixing plate; The damping mechanism comprises a pod base and a plurality of damping elements, wherein the pod base is arranged on the damper fixing plate and is used for carrying an optoelectronic pod; and the cradle head outer frame is provided with a hollow structure for reducing weight. In the unmanned aerial vehicle lifting cradle head, the driving assembly comprises a motor, the motor is fixedly arranged on the star-shaped connecting plate, the output end of the motor is coaxially and fixedly connected with a driving wheel, the driving wheel is connected with a plurality of driven wheels through belt transmission, the driven wheels are rotationally connected to the star-shaped connecting plate, the driven wheels are circumferentially and uniformly arranged at intervals, and the top ends of the screw rods are in one-to-one correspondence with the driven wheels and are coaxially and fixedly connected. In the unmanned aerial vehicle lifting cradle head, the lifting assembly further comprises a guide rail, two bearing seats are fixedly connected to one side of the guide rail, the two bearing seats are respectively positioned at two ends of the guide rail, the screw rod is rotationally connected with the two bearing seats through two bearings, a sliding block is connected onto the guide rail in a sliding mode, and the sliding block is fixedly connected with the nut through a U-shaped block. In the unmanned aerial vehicle lifting cradle head, a plurality of shock absorption holes are formed in the shock absorber fixing plate, the shock absorption holes are circumferentially arranged at equal intervals, the top ends of shock absorption elements are arranged in the shock absorption holes, and the bottom ends of the shock absorption elements are connected with the nacelle base. In the unmanned aerial vehicle lifting cradle head, at least one adjusting clamping groove for installing a tensioning wheel shaft is formed in the star-shaped connecting plate, the tensioning wheel shaft is fixedly installed in the adjust