Aerial photography self-stabilization cradle head with multiple degrees of freedom for unmanned aerial vehicle

Abstract

The invention relates to an aerial photography self-stabilization cradle head with multiple degrees of freedom for an unmanned aerial vehicle. The aerial photography self-stabilization cradle head comprises a fixing framework. The fixing framework comprises a lower platform, a transmission shaft is mounted in the middle of the upper end surface of the lower platform via bearings, a transmission gear is mounted in the middle of the transmission shaft via keys and meshes with six transmission branch chains along the axial directions, and the upper ends of six driving shafts on the six transmission branch chains are connected with a support table by bearings; the middle of the support table is connected with the transmission shaft by bearings, and six support columns are uniformly welded on the lower end surface of the support table along the axial directions; the lower end surfaces of the six support columns are mounted on the lower platform; the upper end of the transmission shaft is connected with a transmission lead screw by couplings; a transmission slider is mounted in the middle of the transmission lead screw in a threaded connection manner. The aerial photography self-stabilization cradle head has the advantages that the aerial photography self-stabilization cradle head can have unmanned aerial vehicle stable lifting aerial photography functions, and is simple in structure, good in mechanical structural stability and lifting aerial photography performance and high in work efficiency, and the like.

Description

[0001] The present invention is a divisional application of a Chinese patent application filed on May 22, 2016 with the application number 2016103434622 and the title of the invention is a self-stabilizing platform for UAV high-altitude aerial photography. technical field [0002] The invention relates to the field of unmanned aerial vehicles, in particular to a self-stabilizing platform for aerial photography of a multi-degree-of-freedom unmanned aerial vehicle. Background technique [0003] The pan / tilt is a supporting device used to install and fix the camera equipment in the monitoring system. It does not directly receive the image, but the pan / tilt controls the rotation direction of the camera or other equipment. The UAV aerial photography platform belongs to the category of the platform, which is mainly used in practical aerial photography such as construction planning, engineering survey, disaster survey, emergency rescue and disaster relief, traffic condition monitori...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above problems, the present invention provides a multi-degree-of-freedom unmanned aerial vehicle self-stabilizing platform, which can solve the problem of poor stability of the mechanical structure of the existing unmanned aerial vehicle and hysteresis in the adjustment of the electronic detection system during the aerial photography process. The jitter caused by external weather factors leads to poor aerial photography effects, and the inability to rigidly adjust the lifting angle results in small aerial photography viewing angles and low work efficiency. This invention uses a 6-SPS parallel mechanism with good dynamic response, high rigidity, large carrying capacity, good stability and motion accuracy. It has the advantages of simple structure, good stability of its own mechanical structure, good performance of lifting aerial photography and high work efficiency.

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