F - Mech Eng,Light,Heat,Weapons – 16 – H
Patent
F - Mech Eng,Light,Heat,Weapons
16
H
F16H 57/00 (2006.01) B64C 27/12 (2006.01) B64C 27/14 (2006.01) F16F 15/121 (2006.01) F16H 1/28 (2006.01) F16H 55/14 (2006.01)
Patent
CA 2253392
An isolated ring gear (60) for a planetary gear drive system (12), which isolated ring gear (60) is operative transferring torque loads and reducing the transmission of high frequency vibrations from the planetary pinions (36). The isolated ring gear (60) includes an inner ring segment (62), an outer ring segment (64) and a plurality of spring elements (66) disposed between and integrally formed with the inner and outer ring segments (62, 64). The inner ring segment (62) has a plurality of gear teeth (62T) for being disposed in intermeshing combination with the teeth (32bT) of the planetary pinions (36) and the outer ring segment (64) is rigidly affixed to the adjacent support structure. The spring elements (66) are operative to transfer torque loads from the inner ring segment (62) to the outer ring segment (64) and, furthermore, provide a torsionally soft load path for reducing the transmission of high frequency vibrations from the inner ring segment (62) to the adjacent support structure.
Couronne dentée isolée (60) pour un système d'entraînement à engrenage planétaire (12), servant à transférer les charges de couple et réduisant la transmission de vibrations à haute fréquence depuis les pignons planétaires (36). Cette couronne dentée isolée (60) comprend un segment de couronne interne (62), un segment de couronne externe (64) et un ensemble d'éléments ressorts (66) disposés entre les segments de couronne interne et externe (62, 64) et solidaires de ces derniers. Le segment de couronne interne (62) possède un ensemble de dents d'engrenage (62¿T?) destinés à s'engrener avec les dents (32b¿T?) des pignons planétaires (36), et le segment de couronne externe (64) est fixé rigidement à la structure de support adjacente. Les éléments ressorts (66) transfèrent les charges de couple depuis le segment de couronne interne (62) vers le segment de couronne externe (64) et constituent en outre un chemin de charge souple en torsion permettant de réduire la transmission de vibrations à haute fréquence depuis le segment de couronne interne (62) vers la structure de support adjacente.
Isabelle Charles J.
Kish Jules G.
Sammataro Stephen R.
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
Sikorsky Aircraft Corporation
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