Electric unmanned aerial vehicle undercarriage capable of rising and falling smoothly

Abstract

The invention discloses an electric unmanned aerial vehicle undercarriage capable of rising and falling smoothly. The electric unmanned aerial vehicle undercarriage capable of rising and falling smoothly comprises an undercarriage main body, an undercarriage bracket and a controller; the undercarriage main body comprises a supporting post, a telescopic mechanism, a tripod supporting frame and twoL-shaped side plates; the supporting post is fixedly arranged between the two side plates and is positioned on transverse plates of the side plates; the tripod supporting frame is in threaded connection with the undercarriage bracket; a stress piece A and a stress piece B are positioned in a limiting groove and are respectively and fixedly arranged on the upper wall and the low wall of the limiting groove; the telescopic mechanism comprises a double-acting cylinder, an upper cover and a lower cover; the upper cover is fixed to the top of the lower cover; the double-acting cylinder is arrangedfront and back and is fixedly mounted in the lower cover. The electric unmanned aerial vehicle undercarriage capable of rising and falling smoothly has the beneficial effects of compact structure, high bearing capacity, high impact resistance and high automation degree; the undercarriage rises and falls smoothly.

Description

technical field [0001] The invention relates to the technical field of unmanned aerial vehicle retractable and retractable landing gear, in particular to an electric retractable and stable landing gear of an unmanned aerial vehicle. Background technique [0002] The electric retractable undercarriage of existing unmanned aerial vehicle generally has two kinds of forms, and the one, screw type electric retractable undercarriage, the other is steering gear four-link type electric retractable undercarriage. The screw-type electric retractable landing gear uses a DC motor as the power to drive the screw forward and reverse, and drives the nut to slide. The force of the nut as one end of the lever drives the landing gear to be retracted and lowered. Because the force borne by the landing gear directly acts on the screw, the screw wire is easily damaged when subjected to impact, and the load capacity and impact resistance are weak. The four-link electric retractable landing gear ...

AI Technical Summary

Problems solved by technology

Since the force borne by the landing gear directly acts on the screw, the screw wire is easily damaged when subjected to impact, and the load capacity and impact resistance are weak

The four-link electric retractable landing gear of the steering gear uses the steering gear as the drive. The steering gear has to bear the impact, the cost of the steering gear is high, and the strength of the four-link mechanism support is higher, resulting in a larger weight. There are only two deadlock positions, and the load can only be carried at the lower deadlock point when lowering

In addition, since retractable landing gears are installed around the fuselage of the UAV, if one or more retractable landing gears are not in place synchronously, it will cause the UAV to fly tilted when flying, and the UAV will fly when it lands. The fuselage is tilted or even dumped

Images