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Unmanned aerial vehicle propeller fixing device convenient to assemble and disassemble

A technology that facilitates disassembly and assembly and fixing of the device, which is applied in the directions of unmanned aerial vehicles, rotorcraft, motor vehicles, etc. It can solve the problems of inconvenient disassembly and assembly of the propeller of the UAV, and achieve the effect of preventing corrosion and having a simple device structure.

Inactive Publication Date: 2018-04-10
ZHENGZHOU QISHUO ELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is: in order to solve the problem of inconvenient disassembly and assembly of the unmanned aerial vehicle propeller in the prior art, the present invention provides a convenient disassembly and assembly fixing device for the unmanned aerial vehicle propeller

Method used

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  • Unmanned aerial vehicle propeller fixing device convenient to assemble and disassemble
  • Unmanned aerial vehicle propeller fixing device convenient to assemble and disassemble
  • Unmanned aerial vehicle propeller fixing device convenient to assemble and disassemble

Examples

Experimental program
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Effect test

Embodiment 1

[0025] A screw fixing device for unmanned aerial vehicles that is convenient to disassemble and assemble, including the propeller and the rotating shaft 1 arranged on the unmanned aerial vehicle. The limit hole 4 is provided, the depth of the limit hole 4 is greater than the depth of the spiral chute 3, the propeller includes the shaft sleeve 5 and the paddles 14 symmetrically arranged on the circumference of both sides of the shaft sleeve 5, the center of the shaft sleeve 5 is the shaft hole, and the inner wall of the shaft hole 6 There are two symmetrical fixing holes 12 in the radial direction on the upper level, locking holes 7 are symmetrically arranged on both sides of the shaft hole 6 on the end surface of the shaft sleeve 5, and an annular fixing groove 15 is arranged on the wall of the fixing hole 12. There is a cylindrical fixed rod 10, the outer wall of the fixed rod 10 is provided with a worm gear 13, the outer wall of the fixed rod 10 and the inner circumference of...

Embodiment 2

[0030] This embodiment is improved on the basis of Embodiment 1:

[0031] The helix angle of the worm 8 is smaller than the equivalent friction angle between the meshing teeth of the worm 8 and the worm wheel 13 .

[0032] The advantages of the above improvements are: the helix angle of the worm is smaller than the equivalent friction angle between the worm and the meshing teeth of the worm gear, that is, the worm gear has a self-locking function, which prevents the propeller from shaking during the flight of the drone, so that the fixed rod is driven by the worm gear The worm screw makes the fixed rod withdraw from the limit hole, causing the propeller to fall off and causing losses and accidents.

Embodiment 3

[0034] This embodiment is improved on the basis of the above embodiments:

[0035] A rotating handle 18 is provided at the top of the worm 8 , and a protective cover 17 is provided on the end surface of the shaft sleeve 5 where the locking hole 7 is provided.

[0036] The advantages of the above improvements are that the protective cover can protect the fixing device on the shaft sleeve during the flight of the UAV, prevent foreign matter from entering the device and affect the normal function of the device, and also prevent the device from being corroded by water ingress in rainy days.

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Abstract

The invention discloses an unmanned aerial vehicle propeller fixing device convenient to assemble and disassemble, and relates to the technical field of propeller unmanned aerial vehicles. The problemthat in the prior art, an unmanned aerial vehicle propeller is not convenient to assemble or disassemble is solved. The device comprises a propeller and a rotating shaft, the propeller comprises a shaft sleeve, a fixing hole is formed in the shaft sleeve, a cylindrical fixing rod is arranged in the fixing hole, the fixing rod is sleeved with a worm wheel, a locking hole with a worm is arranged onthe shaft sleeve, the worm and the worm wheel are matched, a sliding groove is formed in the rotating shaft, a limiting hole is formed in the end of the sliding groove, the fixing rod slides in the sliding groove to the limiting hole to be fixed, and therefore the propeller is fixed; during disassembling, the worm is rotated to drive the worm wheel to rotate, the fixing rod is retracted into thefixing hole under the effect of a thread, and therefore the propeller and the rotating shaft are disengaged.

Description

technical field [0001] The present invention relates to the technical field of propeller unmanned aerial vehicle, and more specifically relates to a convenient disassembly and assembly of unmanned aerial vehicle propeller fixing device. Background technique [0002] Unmanned aircraft, referred to as "unmanned aerial vehicle", or "UAV" in English, is an unmanned aircraft that is controlled by radio remote control equipment and its own program control device, or is completely or intermittently operated autonomously by an on-board computer. [0003] Drones are often better suited for missions that are too "dumb, dirty or dangerous" than manned aircraft. According to the application field, UAV can be divided into military and civilian. In terms of military use, UAVs are divided into reconnaissance aircraft and target aircraft. In terms of civilian use, drones + industry applications are the real rigid needs of drones; currently, they are used in aerial photography, agriculture...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64C27/32
CPCB64C27/32B64U10/10
Inventor 高翔
Owner ZHENGZHOU QISHUO ELECTRONICS TECH CO LTD
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