Gear box for wind turbine generator and supporting structure...

F - Mech Eng,Light,Heat,Weapons – 03 – D

Patent

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Details

F03D 11/00 (2006.01) F16H 57/021 (2012.01) F03D 11/02 (2006.01) F16C 35/067 (2006.01) F16C 35/077 (2006.01)

Patent

CA 2733912

It is an object to provide a gear box for a wind turbine generator and a rotation-shaft supporting structure which are capable of suppressing the occurrence of slips in a bearing with lower costs. A gear box (10) for a wind turbine generator which increases a speed of rotation of a wind turbine includes a gear (18) to which the rotation of the wind turbine is transmitted, and the gear (18) includes a rotation shaft (19) which is rotatably supported by a first bearing (20) and a second bearing (21). The first bearing (20) includes a pre-load applying member adapted to partially press the first bearing (20) from outside for increasing contact pressures between an outer ring (22) supported by a casing of the gear box (10), an inner ring (23) mounted on the rotation shaft (19), and rollers (24) provided between the outer ring (22) and the inner ring (23).

L'invention concerne un dispositif accélérateur pour générateur éolien, ayant un glissement réduit au niveau d'un palier réalisé à faible coût. L'invention concerne également un mécanisme de support pour arbre de rotation. Un dispositif accélérateur (10) pour générateur éolien, sert à augmenter la vitesse de rotation d'une roue, un arbre de rotation (19) d'un engrenage (18) auquel la rotation de la roue est transmise étant supporté par rotation au moyen d'un premier palier (20) et d'un deuxième palier (21), le premier palier (20) étant équipé d'un élément exerçant une précharge pour comprimer partiellement depuis l'extérieur le premier palier (20) pour augmenter la pression de contact entre une bague extérieure (22) supportée par un boîtier du dispositif accélérateur (10), une bague intérieure (23) montée sur l'arbre de rotation (19), et des roulements (24) montés entre la bague extérieure (22) et la bague intérieure (23).

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