B - Operations – Transporting – 64 – C
Patent
B - Operations, Transporting
64
C
B64C 27/02 (2006.01) B64C 27/52 (2006.01)
Patent
CA 2592947
A torque coupling (13) for a rotor head (11) of a rotary-wing aircraft has upper and lower plates (29, 31) configured for rotation with a rotor mast (19). Drive links (33) pivotally connected to the upper and lower plates (29, 31) pivot about a pivot axis generally parallel to and radially offset from an axis of rotation of the plates. Each link (33) is engaged with adjacent drive links (33) to form a continuous ring of links, such that motion of one link (33) about its pivot axis causes motion in an opposite direction of each adjacent link (33) about its pivot axis. Drive elements (25) connect the drive links (33) to an assembly configured to receive rotor blades. The drive elements (25) may be components of a universal joint, a multiple trailing-link configuration, a pad-bearing configuration, or another type of articulating assembly.
L~invention concerne un dispositif de transmission de couple (13) pour une tête rotor (11) d~un aéronef à voilure tournante. Le dispositif de transmission de couple (13) comprend des plaques supérieure et inférieure (29, 31) configurées pour être entraînées en rotation avec un mât rotor (19). Des tringles de commande (33) couplées de façon pivotante aux plaques supérieure et inférieure (29, 31) pivotent autour d~un axe de pivotement généralement parallèle à un axe de rotation des plaques et décalé radialement de celui-ci. Chaque tringle (33) vient en prise avec des tringles de commande adjacentes (33) pour former une couronne de tringles continue, de telle sorte que le mouvement d~une tringle (33) autour de son axe de pivotement provoque le mouvement dans un sens opposé de chaque tringle adjacente (33) autour de son axe de pivotement. Des éléments de commande (25) couplent les tringles de commande (33) à un ensemble configuré pour recevoir des pales rotor. Les éléments de commande (25) peuvent être des composants d~un joint universel, d~une configuration de bras oscillants longitudinaux multiples, d~une configuration de paliers à patins ou d~un autre type d~ensemble d~articulation.
Rauber Richard
Stamps Frank
Bell Helicopter Textron Inc.
Macrae & Co.
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