Quick-disassembling energy absorption undercarriage for multi-rotor unmanned aerial vehicle

A multi-rotor unmanned aerial vehicle and landing gear technology, applied in the field of aeronautical engineering, can solve the problems of poor buffering effect, small structural deformation, short buffering time, etc., to reduce impact force and impact energy, absorb large energy, and compress large amount of effect

CN106628125AInactive Publication Date: 2017-05-10中国航天电子技术研究院
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2017-05-10
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention mainly belongs to the field of aeronautical engineering, and particularly relates to a quick-disassembling energy absorption undercarriage for a multi-rotor unmanned aerial vehicle. The undercarriage comprises an undercarriage supporting rod, a fixing structure, a quick-disassembling structure and an energy absorption structure. An undercarriage body is fixed to an arm of the multi-rotor unmanned aerial vehicle. The fixing structure and one end of the undercarriage supporting rod are connected or disconnected through the quick-disassembling structure. The energy absorption structure is connected with the other end of the undercarriage supporting rod and comprises energy absorption springs, and conversion of kinetic energy to elastic potential energy can be achieved. The quick-disassembling energy absorption undercarriage is an important part of the multi-rotor unmanned aerial vehicle, is suitable for ground parking, taking-off and landing of the multi-rotor unmanned aerial vehicle and can bear the gravity of the multi-rotor unmanned aerial vehicle and consume and absorb impact and jolt energy during landing of the multi-rotor unmanned aerial vehicle.
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Description

technical field

[0001] The invention mainly belongs to the field of aeronautical engineering, and in particular relates to a quick-release energy-absorbing landing gear for a multi-rotor UAV. Background technique

[0002] With the continuous development of science and technology and the needs of national defense, the application of multi-rotor drones is becoming more and more extensive. Multi-rotor UAV is one of the current high-tech equipment, widely used in plant protection, line inspection, security, target reconnaissance and other fields. At present, the landing gear of multi-rotor drones in my country includes arched landing gear, straight rod landing gear, retractable landing gear and so on. The arched landing gear has the disadvantages of heavy weight, large volume, and poor portability, which seriously affect the flight time of the multi-rotor UAV and the convenience of packaging and transportation; although the straight-bar landing gear is small in size and light i...

Examples

Embodiment 1

[0038] The invention provides a landing gear for multi-rotor unmanned aerial vehicles which can be quickly assembled and disassembled and spring-buffered. Such as figure 1 As shown, the structure of the landing gear is divided into landing gear struts, fixed structures, quick-release structures and energy-absorbing structures according to their functions. The fixed structure consists of an upper fixed block and a lower fixed block. The upper fixed block is placed directly above the arm of the multi-rotor UAV, and the lower fixed block is placed directly below the arm. The upper fixed block and the lower fixed block are connected by screws. Be fastened between the upper fixed block and the lower fixed block. This fixing method is fixed by the static friction between the upper and lower fixing blocks and the machine arm, without drilling holes on the body of the multi-rotor UAV, and maintaining the overall mechanical properties of the body.

[0039] The quick-release structure...