A gear system for a wind turbine

F - Mech Eng,Light,Heat,Weapons – 16 – H

Patent

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F16H 1/36 (2006.01) F03D 11/02 (2006.01)

Patent

CA 2650842

A gear system (1) comprising a main bearing (3), a main gear (5) and two or more pinion shafts (6). The main bearing (3) directly supports a torque inputting means (2) and defines a rotational axis (4). The pinion shafts (6) are each arranged to mesh with the main gear (5) at an exterior surface (7) of the main gear (5) in such a manner that torque transmitted from the main gear (5) is split into a number of parallel torque paths corresponding to the number of pinion shafts (6). At least the main gear (5), and at least part of its meshes to the pinion shafts (6) are arranged within a perimeter defined by the main bearing (3). The gear system (1) is compact due to the arrangement of the main gear (5) and meshes to the pinion shafts (6). At the same time it is easy and cost effective to manufacture because the pinion shafts (6) mesh to the main gear (5) via the external surface (7).

Un système d'engrenage (1) comprenant un palier principal (3), un palier principal (5) et deux ou plusieurs arbres à pignon (6). Le palier principal (3) supporte directement un système d'entrée de couple (2) et définit un axe de rotation (4). Les arbres à pignon (6) sont chacun disposés de façon à se mêler à l'engrenage principal (5) sur une surface extérieure (7) de l'engrenage principal (5), de telle sorte que le couple transmis de l'engrenage principal (5) soit séparé en un certain nombre de voies de couple parallèles correspondant au nombre d'arbres à pignon (6). Au moins l'engrenage principal (5) et au moins une partie de ses engrènements aux arbres à pignon (6) sont disposés dans un périmètre défini par le palier principal (3). Le système d'engrenage (1) est compact du fait de la disposition de l'engrenage principal (5) et des engrènements aux arbres à pignon (6). Simultanément, il est facile et rentable à fabriquer car les arbres à pignon (6) s'engrènent à l'engrenage principal (5) par le biais de la surface extérieure (7).

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