Mitsubishi Heavy Industries Limited

Kaoru Iwasaki

Hiroaki Takeuchi

Katsuhiko Shoda

Shiro Takada

Takafumi Yoshida

Yukio Akizuki

Keita Nakashima

Keiichirou Kawano

Yuji Matsunami

In an object to provide a gear box for a wind turbine generator and a wind turbine generator in which the life of the planet bearings are further enhanced, a gear box of the present invention includes a casing, a carrier, planet pins held to the carrier, planet bearings supported to the planet pins, respectively, a plurality of planet gears supported to the planet pin via the planet bearings, respectively, and a ring gear and a sun gear meshed with the planet gears. In the gear box, the carrier has an inclined surface facing the planet bearing as a part of an outer cylinder part provided on both ends of the planet pins in axial direction of the planet pin and surrounding the outer circumference of the both ends of the planet pins and the incline surface inclines such that the farther from an axial center of the planet pin, the longer a distance between the inclined surface and the planet bearing.

Gear box for wind turbine generator and wind turbine generator

A method of repairing a bearing of a wind turbine generator is provided which is able to more permanently repair a gap which occurred between a constituent member of the wind turbine generator and a bearing ring of the bearing. For example, in the case of repairing the gapbetween the main shaft outer cylinderof the wind turbine generatorand the outer ringA of the main bearing, the plateis inserted between the main shaft outer cylinderand the outer ringA, and also the plateis fixed to an inner circumferential surface of the main shaft outer cylinderby the adhesive agent. On the other hand, slip is permitted between the plateand the outer ringA of the main bearing

Method of repairing bearing of wind turbine generator

Growing community of inventors

Tokyo, Japan

Kaoru Iwasaki