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Arm folding device of multi-rotor unmanned aerial vehicle

A multi-rotor UAV and folding device technology, which is applied in the field of folding UAV arm locking device, can solve the problems of sliding parts that are prone to fatigue deformation, fatigue fracture, and arm positioning failure, so as to ensure installation and improve Long service life, fast installation effect

Active Publication Date: 2016-12-21
河北全疆科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the use of this structure, due to the frequent and large changes in the motor speed, the sliding parts are subjected to shear force at the joint between the fixed part of the carbon plate and the connecting part of the machine arm, and because the sliding parts are in the fixed part of the carbon plate and the connecting part of the machine arm The sudden change in the cross-section of the junction leads to local stress at the cross-section change, and the sliding part is easily deformed or broken by fatigue under the shear force, resulting in failure of the positioning of the arm

Method used

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  • Arm folding device of multi-rotor unmanned aerial vehicle
  • Arm folding device of multi-rotor unmanned aerial vehicle
  • Arm folding device of multi-rotor unmanned aerial vehicle

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Embodiment Construction

[0023] The present invention will be described below in conjunction with the accompanying drawings and embodiments.

[0024] see figure 1 and figure 2 , the arm folding device of the multi-rotor plant protection UAV provided by the present invention specifically includes the support R2 between the carbon plates and the support L3 between the carbon plates, which are fixed on the upper and lower carbon plates by bolts, and the arm connector 1 is connected to the carbon plate. The inter-panel support R2 and the carbon inter-panel support L3 are connected by hinge bolts 8, and then locked with nuts, the arm joint 1 can rotate around the hinge bolts 8 until the machine arm joint 1 and the carbon inter-panel support R2 Attach it to the support L3 between the carbon plates (when attaching, the machine arm forms an included angle of 3° upward relative to the horizontal direction, that is, an anhedral angle of 3°). Insert the carbon tube arm into the opening hole of the arm connect...

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PUM

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Abstract

The invention relates to an arm folding device of a multi-rotor unmanned aerial vehicle. The arm folding device comprises an arm connecting piece 1, two support components among carbon plates and a fastener 5. The lower end of the front of the arm connecting piece 1 is hinged to the lower portions of the two support components among the carbon plates, and an eccentric hole is formed in the front end of the fastener 5; a barrier 4 is fixed to the upper portions of the two support components among the carbon plates, a barrier groove 9 is formed in the middle of the barrier 4, a connecting plate 10 is fixed to the upper end of the front of the arm connecting piece 1, a connecting plate notch 11 is arranged on the connecting plate 10, a clamp pin 7 is allowed to penetrate the connecting plate notch 11, and a hinge pin 6 is matched with the eccentric circular hole of the fastener 5; the clamp pin 7 is a semi-threaded bolt, penetrates the connecting plate notch 11 on the arm connecting piece 1 to be connected with an internally threaded hole in the hinge pin 6 and is in a free state relative to the arm connecting piece 1. The arm folding device has the advantage that the local reliability of the arm folding device and the integral stability of the multi-rotor unmanned aerial vehicle can be enhanced.

Description

technical field [0001] The invention relates to a folding type UAV machine arm locking device, which belongs to the field of UAV structure design. Background technique [0002] In recent years, multi-rotor plant protection UAVs have been more and more used in the field of crop protection. Compared with multi-rotor aerial cameras, multi-rotor plant protection UAVs have a larger load, and the pulling force required for take-off will vary accordingly. increase, so a larger propeller is required to provide pulling force, and the resulting increase in the overall size of the drone will cause inconvenience to the transportation of the multi-rotor plant protection drone. Therefore, the folding mechanism design of the arm of the multi-rotor plant protection drone is especially important. [0003] The multi-rotor arm folding device usually consists of three parts: the carbon plate fixing part, the arm connecting part, and the arm positioning part. The fixed part of the carbon plate...

Claims

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Application Information

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IPC IPC(8): B64C1/30B64C1/06
CPCB64C1/063B64C1/30B64U10/10
Inventor 田志博卢月竹李希增边蕾冯丙佐李朝喆李韬甄鹏飞鲍奎宇
Owner 河北全疆科技有限公司
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