Bearing structure and wind turbine generator

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

Patent

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Details

F03D 11/04 (2006.01) F03D 11/00 (2006.01) F16C 19/22 (2006.01)

Patent

CA 2672039

A bearing structure that reduces the relative sliding speed of a sealing ring (20) and a contact surface and suppresses relative deformation due to a temperature difference of inner and outer rings (11, 12) is provided. A rolling member (14) is disposed inside a space (16) formed between an outer ring (11) and an inner ring (12), the outer ring (11) or the inner ring (12) rotating relatively via the rolling element (14), wherein a sliding section of the surface of the rolling member (14) and the inner surface of the space (16) is lubricated with a lubricant supplied into the space (16), and a sealing ring (20) attached to a supporter (13) supporting the rolling element (14) seals an opening of the space (16) at an end section in the axial direction.

L'invention porte sur une structure de palier qui réduit la vitesse de coulissement relative entre une bague d'étanchéité (20) et des surfaces de contact, et réduit la déformation relative due à une différence entre les températures de bagues interne et externes (11, 12). Des éléments de roulement (14) sont disposés dans une partie d'espace (16) formée entre la bague interne (11) et les bagues externes (12) pour faire tourner de façon relative la bague interne (11) ou les bagues externes (12) par l'intermédiaire des éléments de roulement (14). Les parties de coulissement des surfaces des corps de roulement (14) et de la surface interne de la partie d'espace (16) sont refroidies par un lubrifiant délivré dans la partie d'espace (16). L'ouverture d'extrémité axiale de la partie d'espace (16) est recouverte par la bague d'étanchéité (20) fixée à l'organe de retenue (13) retenant les éléments de roulement (14).

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