A dual-bearing stabilized gimbal for surveying drones

Abstract

This utility model relates to the field of surveying drone technology, specifically a dual-bearing stabilized gimbal. The solution includes a mounting mechanism with a high-definition camera mounted on its surface. The mounting mechanism includes a mounting plate with a folding plate mounted on its surface. A mounting frame is rotatably connected to the surface of the folding plate, and a gimbal base is rotatably connected to the inner side of the mounting frame. The gimbal base has a horizontally extending guide rail on its surface, and a clamping seat is slidably connected to the surface of the guide rail. A double-threaded screw is rotatably connected to the rear side of the gimbal base, and an internally threaded plate is threadedly connected to the surface of the double-threaded screw. The beneficial effect is that the mounting plate, folding plate, mounting frame, and gimbal base of the mounting mechanism form a multi-level linkage structure, achieving dual-axis stabilization of the high-definition camera. The horizontal guide rail of the gimbal base works in coordination with the double-threaded screw, and the clamping seat achieves horizontal sliding through the threaded transmission of the internally threaded plate, adapting to cameras of different sizes.

Description

Technical Field

[0001] This utility model relates to the field of surveying and mapping drone technology, specifically a dual-bearing stabilized gimbal for surveying and mapping drones. Background Technology

[0002] A pan-tilt head (PTZ) is a support device for mounting and fixing cameras. Generally, the horizontal rotation angle of a PTG is 0° to 350°, and the vertical rotation angle is +90°. In some high-speed camera systems, the horizontal rotation speed of the PTG can reach over 480° / s, and the vertical rotation speed can exceed 120° / s. PTGs are divided into two types: fixed and motorized.

[0003] The existing utility model patent CN215245586U, entitled "A Stabilized Two-Axis Gimbal for UAV Mapping," includes a top base; a connector is integrally fixed to the bottom of the top base; a mounting cylinder is integrally fixed to the bottom of the connector; a tilting shaft is integrally fixed inside the mounting cylinder; a support frame is integrally fixed to the front side of the tilting shaft; two sets of pitch axes are integrally fixed to the bottom of the support frame; a load is integrally fixed to the inner side of the pitch axes; and a camera is integrally fixed to the top of the load. This stabilized two-axis gimbal for UAV mapping can improve the overall stability of the device through a simple structural combination. However, it adopts a friction-type bearingless horizontal rotation structure, relying on shear force to transmit damping oil, resulting in poor rotational smoothness, easy leakage, and inconvenience for camera maintenance. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, this utility model proposes a dual-bearing stabilized gimbal for surveying drones to solve the problems mentioned in the background.

[0005] The technical solution adopted by this utility model to solve its technical problem is: A dual-bearing stabilized gimbal for a mapping drone includes a mounting mechanism. A high-definition camera is mounted on the surface of the mounting mechanism. The mounting mechanism includes a mounting plate, a folding plate mounted on the surface of the mounting plate, a mounting frame rotatably connected to the surface of the folding plate, a gimbal base rotatably connected to the inner side of the mounting frame, a horizontally extending guide rail on the surface of the gimbal base, a clamping seat slidably connected to the surface of the guide rail, and a double-threaded screw rotatably connected to the rear side of the gimbal base. An internal threaded plate is threadedly connected to the surface of the double-threaded screw, and the internal threaded plate is fixedly connected to the clamping seat.

[0006] Preferably, the surface of the folding plate is provided with an internal toothed ring, the surface of the mounting frame is fixedly connected with a horizontal plate, and the surface of the horizontal plate is rotatably connected with two first gears, both of which mesh with the inner ring of the internal toothed ring.

[0007] Preferably, a second gear is fixedly connected to both sides of the gimbal base, a damper is installed on the surface of the mounting frame, and a third gear is fixedly connected to the surface of the damper rotating rod, the third gear meshing with the second gear.

[0008] Preferably, the surface of the clamping base is provided with a slot adapted to a high-definition camera, and the surface of the slot is provided with a rubber pad.

[0009] Preferably, the surface of the gimbal base is provided with a guide groove, and the internal threaded plate is slidably connected to the surface of the guide groove.

[0010] Preferably, a fourth gear is fixedly connected to the surface of the double-threaded lead screw, and a fifth gear adapted to the fourth gear is rotatably connected to the surface of the gimbal base.

[0011] Preferably, the surface of the gimbal base is rotatably connected to an adjustment knob, and the adjustment knob is fixedly connected to the fifth gear.

[0012] Compared with existing technologies, the beneficial effects of this utility model of a dual-bearing stabilized gimbal for surveying UAVs are: First, the mounting plate, folding plate, mounting frame and gimbal base of the mounting mechanism form a multi-level linkage structure to achieve dual-axis stabilization of the high-definition camera.

[0013] Secondly, the horizontal guide rail of the gimbal base works in conjunction with the double threaded screw, and the clamping seat achieves horizontal sliding through the threaded transmission of the internal threaded plate, adapting to cameras of different sizes. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is an exploded view of the installation mechanism in the structure of this utility model; Figure 3 This is an exploded view of the installation mechanism in the structure of this utility model; Figure 4 This is a partial structural diagram of the installation mechanism in the present invention.

[0015] The components include: 1. Mounting mechanism; 101. Mounting plate; 102. Folding plate; 103. Internal gear ring; 104. Horizontal plate; 105. First gear; 106. Mounting frame; 107. Gimbal base; 108. Second gear; 109. Damper; 110. Third gear; 111. Guide rail; 112. Clamping seat; 113. Double threaded screw; 114. Internal threaded plate; 115. Fourth gear; 116. Adjustment knob; 117. Fifth gear; 118. Guide groove; 2. High-definition camera. Detailed Implementation

[0016] The specific embodiments of this utility model will now be described in further detail with reference to the accompanying drawings.

[0017] Please refer to the following specific implementation of a dual-bearing stabilized gimbal for a mapping UAV. Figure 1-4 The system includes: a mounting mechanism 1, a high-definition camera 2 mounted on the surface of the mounting mechanism 1, a mounting plate 101, a folding plate 102 mounted on the surface of the mounting plate 101, a mounting frame 106 rotatably connected to the surface of the folding plate 102, a gimbal base 107 rotatably connected to the inner side of the mounting frame 106, a horizontally extending guide rail 111 on the surface of the gimbal base 107, a clamping seat 112 slidably connected to the surface of the guide rail 111, a double-threaded screw 113 rotatably connected to the rear side of the gimbal base 107, and an internal thread plate 114 threadedly connected to the surface of the double-threaded screw 113, and the internal thread plate 114 is fixedly connected to the clamping seat 112.

[0018] Through the above technical solution, the shooting angle of the high-definition camera 2 can be adjusted by rotating the mounting frame 106 on the surface of the folding plate 102 and by rotating the gimbal base 107 on the surface of the mounting frame 106. Under the action of the mounting mechanism 1, the rotational resistance is evenly distributed, which is suitable for surveying operations in strong wind environments. The rotation of the double threaded screw 113 drives the internal threaded plate 114 to move, and the internal threaded plate 114 drives the clamping seat 112 to move on the surface of the guide rail 111, thereby clamping the high-definition camera 2 and facilitating the maintenance of the high-definition camera 2.

[0019] The surface of the folding plate 102 is provided with an internal gear ring 103, and the surface of the mounting frame 106 is fixedly connected with a horizontal plate 104. The surface of the horizontal plate 104 is rotatably connected with two first gears 105. Both first gears 105 mesh with the inner ring of the internal gear ring 103. The internal gear ring 103 and the two first gears 105 form a symmetrical meshing transmission. The pitch angle of the gimbal 107 is adjusted by the rigid connection between the gimbal base 107 and the horizontal plate 104. The meshing of the two first gears 105 disperses the transmission pressure and reduces the gear wear rate.

[0020] The gimbal base 107 has a second gear 108 fixedly connected to both sides of its surface. A damper 109 is installed on the surface of the mounting frame 106. A third gear 110 is fixedly connected to the surface of the rotating rod of the damper 109. The third gear 110 meshes with the second gear 108. The damper 109 forms a passive damping system through the meshing of the third gear 110 with the second gear 108. When the gimbal base 107 is subjected to external force vibration, the viscous resistance of the damper 109 suppresses the resonance of the gear transmission chain. The damper 109 can absorb high-frequency vibration energy and reduce the vibration transmission rate.

[0021] The surface of the clamp 112 is provided with a slot adapted to the HD camera 2. The surface of the slot is provided with a rubber pad. The slot is designed to fit various camera housings. The silicone material of the rubber pad provides cushioning and reduces the risk of damage to the HD camera 2 due to impact.

[0022] The surface of the gimbal base 107 is provided with a guide groove 118, and the internal thread plate 114 is slidably connected to the surface of the guide groove 118. The guide groove 118 and the internal thread plate 114 form a sliding assistance to constrain the axial displacement of the double thread screw 113. The design of the guide groove 118 prevents the internal thread plate 114 from derailing and improves the transmission stability.

[0023] A fourth gear 115 is fixedly connected to the surface of the double threaded screw 113, and a fifth gear 117 adapted to the fourth gear 115 is rotatably connected to the surface of the gimbal base 107. The fourth gear 115 and the fifth gear 117 form a speed reduction transmission chain, which converts the rotational motion of the manual adjustment knob 116 into the linear displacement of the double threaded screw 113.

[0024] An adjustment knob 116 is rotatably connected to the surface of the gimbal base 107, and the adjustment knob 116 is fixedly connected to the fifth gear 117. The adjustment knob 116 drives the double threaded screw 113 through the fifth gear 117 to realize the quick locking / releasing of the clamping seat 112.

[0025] Its working principle is as follows: The folding plate 102 and the mounting frame 106 of the mounting mechanism 1 constitute the first-stage pitch adjustment shaft. The meshing transmission of the internal gear ring 103 and the double first gear 105 provides pitch freedom. The damper 109 suppresses vibration through the third gear 110 and the second gear 108. The horizontal guide rail 111 of the gimbal base 107 and the double threaded screw 113 constitute the second-stage roll adjustment shaft. The sliding of the clamping seat 112 is precisely controlled by the internal threaded plate 114. The guide groove 118 constrains the displacement direction. Both shaft adjustments adopt gear reduction transmission. Manually rotating the adjustment knob 116 drives the fifth gear 117 to drive the double threaded screw 113, realizing stepless adjustment of the clamping force.

[0026] It should be noted that, although specific embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these specific embodiments without departing from the principles and spirit, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A surveying unmanned aerial vehicle dual bearing stabilizing holder, characterized in that, Include: The surface of the installation mechanism (1) is provided with a high-definition camera (2), the installation mechanism (1) includes a mounting plate (101), the surface of the mounting plate (101) is provided with a folding plate (102), the surface of the folding plate (102) is rotatably connected with a mounting frame (106), the inner side of the mounting frame (106) is rotatably connected with a holder (107), the surface of the holder (107) is provided with a horizontally extending guide rail (111), the surface of the guide rail (111) is slidably connected with a clamping seat (112), the rear side of the holder (107) is rotatably connected with a double-threaded screw rod (113), the surface of the double-threaded screw rod (113) is threadedly connected with an internally threaded plate (114), and the internally threaded plate (114) is fixedly connected with the clamping seat (112).

2. The dual bearing stabilized gimbal of claim 1, wherein: The surface of the folding plate (102) is provided with an internal gear ring (103), the surface of the mounting frame (106) is fixedly connected with a horizontal plate (104), the surface of the horizontal plate (104) is rotatably connected with two first gears (105), and the two first gears (105) are engaged with the inner ring of the internal gear ring (103).

3. The dual bearing stabilized gimbal of claim 1, wherein: The surface of the holder (107) is fixedly connected with a second gear (108), the surface of the mounting frame (106) is provided with a damper (109), the surface of the rotating rod of the damper (109) is fixedly connected with a third gear (110), and the third gear (110) is engaged with the second gear (108).

4. The dual bearing stabilized gimbal of claim 1, wherein: The surface of the clamping seat (112) is provided with a clamping groove matched with the high-definition camera (2), and the surface of the clamping groove is provided with a rubber pad.

5. The dual bearing stabilized gimbal of claim 1, wherein: The surface of the holder (107) is provided with a guide groove (118), and the internally threaded plate (114) is slidably connected to the surface of the guide groove (118).

6. The dual bearing stabilized gimbal of claim 1, wherein: The surface of the double-threaded screw rod (113) is fixedly connected with a fourth gear (115), and the surface of the holder (107) is rotatably connected with a fifth gear (117) matched with the fourth gear (115).

7. The dual bearing stabilized gimbal of claim 1, wherein: The surface of the holder (107) is rotatably connected with an adjusting knob (116), and the adjusting knob (116) is fixedly connected with the fifth gear (117).

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