Transverse rigid rotor blade helicopter

A technology for rotor blades and helicopters, which is applied to rotorcraft, motor vehicles, aircraft parts, etc., can solve the problems of helicopter flight accidents, complicated helicopter manipulation, and complicated flight control, and achieves good maneuverability, high flight aerodynamic efficiency, and rotors. Dynamically simple effects
CN102417034AInactive Publication Date: 2012-04-18NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Patent Information

Authority / Receiving Office
CN ยท China
Current Assignee / Owner
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
Publication Date
2012-04-18
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

The invention discloses a transverse rigid rotor blade helicopter, which comprises a fuselage, wings disposed at two sides of the fuselage, wing piers disposed on the wings, a main driving device disposed inside the fuselage, power transmission shafts disposed in the wings, rotor driving shafts disposed in the wing piers; propeller hubs, and blades; the invention is characterized in that: universal joints are disposed between the rotor driving shafts and the propeller hubs, and the blades are hinged to the propeller hubs in an axial direction. According to the invention, the position of the rotor rotating plane is not changed by complicated cyclic pitch control of routine rotor helicopters; the propeller hubs have simple structures; the rotor is simple in dynamics, and simple in operation, has high flying aerodynamic efficiency, good maneuverability, and low power dissipation.
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Description

technical field

[0001] The invention relates to a tandem helicopter, in particular to a tandem rigid rotor blade helicopter of a new configuration. Background technique

[0002] The rotor of the existing conventional rotor helicopter consists of a hub and several blades, the hub is fixedly installed on the rotor shaft, and the blades are installed on the on the hub. The axial hinge makes the blade generate the axial variable pitch motion, and the flapping hinge and the shimmy hinge make the blade generate the flapping motion and the shimmy motion. As the blade rotates, it interacts with the surrounding air, creating a pulling force perpendicular to the plane of rotation of the rotor. If the plane of rotation of the rotor is horizontal, the pulling force is vertically upward, and the helicopter flies vertically. If the rotor rotation plane is tilted, the pulling force is tilted, and the helicopter flies in the direction of the pulling force tilting. If you lean forward, y...

Claims

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