Snubber-bearing with combined elastomer laminates

Details Snubber-bearing with combined elastomer laminates Snubber-bearing with combined elastomer laminates

F - Mech Eng,Light,Heat,Weapons

16

F

F16F 15/12 (2006.01) B64C 27/35 (2006.01) B64C 27/51 (2006.01) F16F 3/093 (2006.01)

Patent

CA 2055202

A snubber set (30) for a helicopter rotor (10) is comprised of an inner race (44), an intermediate race (45), a preload plate (46), an inner portion (48) having alternating laminates of elastomer (52) and metal shims (54) which are spherically shaped, and an outer portion (50) having alternating laminates of elastomer (58) and metal shims (60) which are flat. The flat laminates (58) are comprised of a center portion (61) made from a high loss elastomer and a peripheral portion (62) made from a high shear strength elastomer.

Cette invention concerne un limiteur de débattement (30) pour rotor d'hélicoptère (10) composé d'une cage intérieure (44), d'une cage intermédiaire (45), d'une plaque de précontrainte (46), d'une partie intérieure (48), formée de stratifiés élastomères (52) et de cales d'épaisseur métalliques (54) alternés et de forme incurvée, et d'une partie extérieure (50) formée de stratifiés élastomères (58) et de cales d'épaisseur métalliques (60) qui sont plats. Les stratifiés plats (58) se composent d'une âme (61) en élastomère à amortissement élevé et d'une partie périphérique en élastomère à résistance élevée au cisaillement.

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