Unmanned aerial vehicle with retractable landing gears
A technology of unmanned aerial vehicles and landing gear, applied in the field of unmanned aerial vehicles, can solve the problems of unfavorable promotion and high cost
Active Publication Date: 2019-02-12
BEIJING ZHAOYANG SCI TECH CULTURE
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Problems solved by technology
The application of two servo motors and a hydraulic system is costly and not conducive to popularization of landing gear with freely retractable functions
Method used
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[0057] Such as figure 1 , 3As shown, it includes a UAV body 1, a landing mechanism 3, an adjustment mechanism 4, a front wheel 5, and a rear wheel 6, such as figure 1 , 2 As shown, wherein the UAV body 1 has a belly surface 2; as figure 1 As shown, one landing mechanism 3 is installed at the middle and front end of the belly surface 2 through a hinge; two landing mechanisms 3 are symmetrically installed at the middle and rear ends of the belly surface 2 through a hinge; the adjustment mechanism 4 is installed on the belly surface 2; the adjustment mechanism 4 is located in the middle of the triangular area formed by three landing gears 3; the two front wheels 5 are installed on the landing gear 3 located at the front end of the belly surface 2; the two rear wheels 6 are respectively Installed on the two landing gears 3 positioned at the middle and rear ends of the belly surface 2; The two landing gears 3 at the rear end position are connected.
[0058] The adjustment mech...
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The invention belongs to the technical field of landing gears, in particular to an unmanned aerial vehicle with the retractable landing gears. The unmanned aerial vehicle comprises an unmanned aerialvehicle body, landing mechanisms, an adjusting mechanism, a front wheel and rear wheels, wherein the adjusting mechanism is used for controlling one side of a parallelogram so that the three landing mechanisms can be put down or retracted; landing rods can be pulled up and retracted at a certain degree from a vertical state, in this way, the wind resistance is reduced during the flight process ofthe unmanned aerial vehicle. Compared with an unmanned aerial vehicle without the function of retracting the landing gears, the flight efficiency of the unmanned aerial vehicle with the retractable landing gears can be better. In addition, relative to an unmanned aerial vehicle with the function of retracting the landing gears, only one servo motor is required when the unmanned aerial vehicle retracts the landing gears so that the three landing gears can move simultaneously, the complex rate of controlling of two servo motor in a traditional unmanned aerial vehicle is reduced. A hydraulic system in traditional unmanned aerial vehicle is not used when the three landing gears are retracted, and the structure is greatly simplified, so that the manufacturing costs are further reduced.
Description
technical field [0001] The invention belongs to the technical field of landing gear, in particular to an unmanned aerial vehicle with retractable landing gear. Background technique [0002] At present, fixed-wing UAVs have been widely used in the commercial field, and compared with military fixed-wing UAVs, fixed-wing UAVs for commercial use are small in size and low in cost. However, in order to save costs for commercial fixed-wing UAVs, the landing gear of some commercial fixed-wing UAVs cannot be freely retractable. The landing gear that cannot be retracted freely can easily cause relatively large wind resistance during the flight of the fixed-wing UAV, which affects the flight of the fixed-wing UAV to a certain extent. For the landing gear with freely retractable function, the front landing gear and the rear landing gear are controlled by two servo motors, and some also need to use the hydraulic system to control the retraction and retraction of the landing gear. The a...
Claims
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IPC IPC(8): B64C25/12B64C25/24B64C25/34
CPCB64C25/12B64C25/24B64C25/34B64C2025/345
Inventor 不公告发明人
Owner BEIJING ZHAOYANG SCI TECH CULTURE