The invention discloses a propeller device of a helicopter, belongs to the technical field of helicopter instrument production, and aims to solve the technical problem of how to provide a propeller device without a hinge structure and a blade protection facility for the helicopter. According to the technical scheme, an installation frame is arranged on one side of a cross-shaped annular rail and can be horizontally installed on the two sides above a machine body, a motor (engine) is installed above the center of the cross-shaped annular rail, a transmission shaft downwards penetrates through a transmission shaft hole to the position below the rail, a rotary disc is installed at the lower end of the transmission shaft, a plurality of paddles and rollers are installed on the rotary disc, and the rollers make contact with the position below the annular rail; when the motor drives the blades to rotate, the idler wheels roll and rotate along the lower portion of the cross-shaped annular rail to generate lift force, and the lift force is transmitted to the helicopter body through the idler wheels, the annular rail and the installation frame to provide lift force for the helicopter. The propeller device is suitable for helicopters and vertical take-off and landing unmanned aerial vehicles.
一种直升机的螺旋桨装置,属于直升机器械生产技术领域,所要解决的技术问题:如何为直升机提供一种没有铰链结构的螺旋桨装置及桨叶防护设施。技术方案要点是:十字环形轨道一侧设置安装架,可水平安装在机身上方两侧,电机(发动机)安装在十字环形轨道中心上方,传动轴向下穿过传动轴孔至轨道下方,传动轴下端安装转盘,转盘上安装多个桨叶和滚轮,滚轮与环形轨道下方接触;电机带动桨叶旋转时,滚轮沿着十字环形轨道下方滚动、旋转,产生升力,升力通过滚轮、环形轨道、安装架传递给机身,为直升机提供升力。该螺旋桨装置适用于直升机和垂直起降无人机。
Propeller device of helicopter
一种直升机的螺旋桨装置
2025-01-14
Patent
Electronic Resource
Chinese