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Wing folding mechanism, wing device and unmanned aerial vehicle

A wing folding mechanism and wing folding technology, applied in the field of drones, can solve the problems of inability to complete refolding, unstable unfolding process, poor reliability, etc., and achieve small space and air resistance, smooth process, and comprehensive functions Effect

Inactive Publication Date: 2021-02-12
AEROSPACE CH UAV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this kind of mechanism is light in weight, its reliability is poor, and it is prone to jamming, unstable unfolding process, etc., and it cannot complete the refolding action after unfolding, and its function is relatively single.

Method used

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  • Wing folding mechanism, wing device and unmanned aerial vehicle
  • Wing folding mechanism, wing device and unmanned aerial vehicle
  • Wing folding mechanism, wing device and unmanned aerial vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] figure 1 A schematic diagram showing the wing folding mechanism of this embodiment; figure 2 A schematic diagram showing wing expansion of the present embodiment; image 3 A schematic diagram of the wing of this embodiment when it is folded at a certain angle is shown.

[0063] Such as Figure 1 ~ Figure 3 As shown, the UAV wing device includes a transmission rod 1, a pair of wing folding mechanisms, a right front wing 7, a left front wing 9, a right rear wing 8, and a left rear wing 10;

[0064] Each wing folding mechanism includes a fixed shaft 11 and a transmission assembly, the fixed shaft 11 is rotatably provided with a first gear 4 and a second gear 6, and the first gear 4 and the second gear 6 are connected by transmission gear 5 , the two fixed axes 11 are parallel to each other;

[0065] Wherein, the top end of the fixed shaft 11 of the wing folding mechanism at the front is provided with a support device 12, the support device 12 includes a support portio...

Embodiment 2

[0072] Figure 4 A schematic structural diagram of the drone of this embodiment is shown.

[0073] Such as Figure 4 Shown, the two ends of the lengthwise direction of UAV body 13 are sharp ends, and UAV body 13 is provided with the UAV wing device in embodiment 1, and the fixed axis of UAV wing device and fuselage frame The plates are fixedly connected, and the transmission rod is arranged inside the drone body along the length direction of the drone body 13. The drone body is provided with a driving motor, and the driving motor is connected to the transmission rod to drive the transmission rod to rotate forward or reverse.

[0074] When the UAV of this scheme is mounted on the parent aircraft, the wings can be folded close to the fuselage, and the space occupied and air resistance are small, so that the number of mounted sub-machines can be increased; during cruising flight, the wings can be expanded into 90°, improve the lift-to-drag ratio and reduce fuel consumption; whe...

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Abstract

The invention discloses a wing folding mechanism, a wing device and an unmanned aerial vehicle. The wing folding mechanism comprises a fixed shaft, a first gear and a second gear are rotatably arranged on the fixed shaft, the first gear and the second gear are respectively used for connecting wings, and the first gear and the second gear are in transmission connection through a transmission gear;the wing folding mechanism further comprises a transmission assembly which is used for driving the first gear to rotate; when the transmission assembly drives the first gear to rotate, the first geardrives the second gear to rotate in the opposite direction through the transmission gear, and then the wings are driven to be folded or unfolded. According to the invention, the wings can be repeatedly unfolded and folded, and the unfolding and folding processes are smooth, more stable and more reliable.

Description

technical field [0001] The invention belongs to the technical field of unmanned aerial vehicles, and more specifically relates to a wing folding mechanism, a wing device and an unmanned aerial vehicle. Background technique [0002] Some small UAVs are launched after being mounted on the mother plane, and the wings are folded close to the fuselage before launch. After launch, the front and rear wings are unfolded by the folding mechanism to complete the flight mission. The front and rear wings are close to the fuselage, which can minimize the space occupied and air resistance when mounting, so as to increase the number of mounted sub-machines as much as possible. [0003] Traditional folding mechanisms generally use torsion springs to complete the expansion of the wings. Wings are folded in advance during installation, the torsion spring is compressed to make it tight, and then the wings are locked with a locking mechanism. After the UAV is launched in the air, the locking ...

Claims

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Application Information

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IPC IPC(8): B64C3/56
CPCB64C3/56
Inventor 陈亮薛子涵胡德英刘鑫王若钦
Owner AEROSPACE CH UAV CO LTD
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