摘要:
La présente invention concerne un dispositif de friction (11) pour maintenir dans une position déterminée un organe de commande (2,8) comportant : - une pièce de contact (16) mobile entre une position stable débrayée et une position stable embrayée et inversement, ladite position stable embrayée correspondant à une position dans laquelle la pièce de contact (16) est en appui sur l'organe de commande (2,8) de manière à établir une force de friction déterminée, - des moyens d'entraînement pour déplacer la pièce de contact (16) entre les deux positions stables,
caractérisé en ce qu'il comprend un moyen de commande à distance pour activer et désactiver les moyens d'entraînement.
摘要:
The present embodiments relate to a cyclic pitch angle adjustment apparatus 200 for a rotor 110 or propeller, to a rotor 110 with such a cyclic pitch angle adjustment apparatus 200, and to a rotorcraft 100 with such a rotor 110. The cyclic pitch angle adjustment apparatus 200 includes levers 230a, 230b that rotate rotor blades 212a, 212b around associated pitch axes 235a, 235b, rods 240a, 240b that mechanically link the levers 230a, 230b with a bearing 220 such that the rods 240a, 240b are movable relative to a central point 223, the bearing 220 being attached to a central rod 250 that is movable and adapted for adjusting the cyclic pitch angle of the rotor blades 112 from one pitch angle in one position to another pitch angle in another position 265.
摘要:
An aircraft rotor system includes a rotating pitch change shaft which rotates about an axis, a translating element disposed within the rotating pitch change shaft and movable along the axis and a pitch change bearing assembly which transfers movement of the translating element to the pitch change shaft. The pitch change bearing assembly includes a primary bearing and a secondary bearing coupled to the rotating pitch change shaft via the translating element when the primary bearing is in a first mode. A thrust shoulder is coupled to the translating element. The thrust shoulder is movable into engagement with the secondary bearing in response to failure of the primary bearing such that in a second mode, movement of the translating element is primarily transferred to the pitch change shaft via the secondary bearing.
摘要:
The invention is related to a multi-blade rotor (1) of a rotary wing aircraft, the multi-blade rotor (1) comprising at least one rotor blade (2) that defines a pitch axis (3) and that is provided with an associated pitch-control lever (5) that is operatively coupled to a pitch link rod (4), the pitch link rod (4) defining a longitudinal axis (4a), wherein the associated pitch-control lever (5) comprises an accommodation (5a) that is located on the longitudinal axis (4a) of the pitch link rod (4) at a predetermined distance (4c) from the pitch axis (3) of the at least one rotor blade (2), the pitch link rod (4) being operatively coupled to the associated pitch-control lever (5) at the accommodation (5a) of the associated pitch-control lever (5), wherein the predetermined distance (4c) is adjustable in order to enable adjustment of track and balance of the multi-blade rotor (1).
摘要:
The present invention discloses a multi-shaft power source unmanned flight equipment, and belongs to the technical field of unmanned aerial vehicles. The multi-shaft power source unmanned flight equipment comprises a frame (1), a plurality of rotor sets (2) and a power device (3). The plurality of rotor sets (2) are rotatably fixed on the frame (1), and the power device (3) is correspondingly movably connected with each rotor set (2) respectively. Power is provided for flight of the unmanned flight equipment by the power device (3) with oil drive characteristics, mechanical kinetic energy is generated by burning a combustion material pre-injected in the power device (3), and rotors (21) in each rotor set (2) correspondingly connected with the power device are driven to rotate, thereby replacing the traditional electric multi-rotor unmanned aerial vehicle structure adopting electric modes such as batteries, electronic speed controllers and the like to supply power and provide power for the rotation of the rotors (21); and the unmanned flight equipment has the characteristics of long duration and strong loading capacity.