ROTOR BEARING FOR A WIND TURBINE

摘要

The invention relates to a rotor bearing for a wind turbine (1) which substantially consists of a nacelle (3) that is rotatably received on a tower (2), said nacelle comprising a generator (4) for generating power, a wind-driven rotor (5) having a rotor hub (7) that carries at least two rotor blades (6) and a large rolling bearing (8)carrying the rotor (5). Said large rolling bearing comprises a first bearing ring (9) which is non-rotatably fastened on the nacelle (3) and arranged coaxially to the rotor hub (7) and a second bearing ring (10) which is rotatably held on the first bearing ring (9) and fastened to the rotor hub (7) and a plurality of rolling elements (11) that roll off between the bearing rings (9, 10). The large rolling bearing is connected to a planetary gear (12) which is connected to the generator (4) and which consists of a ring gear (13) with a peripheral internal gear (14), a plurality of planet gears received on planet carriers (15) and a central sun gear. The invention is characterized int that the radially inner of the two bearing rings (9 or 10) of the large rolling bearing (8) at the same time is the ring gear (13) of the plant gear (12) connected to the generator (4), its interior (16) being configured with the peripheral internal gear (14) of the ring gear (13).