The invention relates to the technical field of unmanned aerial vehicles, in particular to a negative pressure and thrust dual-purpose propeller structure. Comprising a shaft core of the propeller, two large-radius blades and a plurality of first small-radius blades are distributed on the outer wall of the shaft core of the propeller used by the flying robot capable of being mounted on an adsorbable vertical wall surface, and the two large-radius blades are symmetrically arranged along the shaft core by 180 degrees. The design is optimized by adding a plurality of first small-radius blades, and compared with a traditional propeller, the design improves airflow distribution and eliminates the problem that the airflow speed near a shaft core is low in the negative pressure adsorption and flight state; the air draft effect is enhanced, and particularly, better air circulation is achieved in a semi-closed negative pressure cavity.
本发明涉及无人飞行器技术领域,具体是涉及一种负压、推力两用螺旋桨结构。包括螺旋桨的轴芯,用于安装在可吸附垂直壁面的飞行机器人使用的螺旋桨在轴芯外壁布设有两个大半径桨叶和数个第一小半径桨叶,其中,所述两个大半径桨叶沿轴芯呈180度对称设置。通过增加数个第一小半径桨叶来优化设计,相比传统螺旋桨,在负压吸附和飞行状态下,该设计改善气流分布,消除轴芯附近的气流速度低下问题;增强抽风效果,特别是在半密闭负压腔内,实现更好的空气循环。
Negative pressure and thrust dual-purpose propeller structure
一种负压、推力两用螺旋桨结构
2024-01-12
Patent
Electronic Resource
Chinese
Isolated propeller aeroacoustics at positive and negative thrust
Elsevier | 2024
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