Gearbox for a wind turbine, a method of converting wind energy and use of a gearbox

US8137234B2 · kind B2 · utility

Assignee

• Vestas Wind Systems A/S · DK

Inventors

• Anton Bech · Ciudad Real, ES
• Jens Demtröder · Rønde, DK

Key dates

• Filing date: Apr 23, 2010
• Grant date: Mar 20, 2012
• Expiry date: Apr 23, 2030

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E10/72
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A gearbox for a wind turbine. The gearbox includes at least one first epicyclical gear stage, at least one second gear stage, and a torque transferring shaft including a shaft part and a connection part, wherein the torque transferring shaft is adapted for connecting a first gear of the first epicyclical gear stage with a second gear of the second gear stage and wherein the torque transferring shaft is connected to the second gear stage via the connection part to form a torque-transferring connection area between the connection part and the second gear stage and wherein the outer diameter of the shaft part of the torque transferring shaft is smaller than an inner diameter of the connection area between said torque transferring shaft and said second gear stage.