Patent · US Active

Wind turbine gear mechanism

US8968149B2 · kind B2 · utility

1Cited by

2References

7Claims

0Family size

Assignees

ZF FRIEDRICHSHAFEN AG · DE
Vestas Wind Systems A/S · DK

Inventors

Jochen Walliser · Ulm, DE
Alfred Kienzle · Frickingen, DE
Tino Kirschner · Friedrichshafen, DE
Knud Erik Petersen · Holstebro, DK

Key dates

Filing date	Mar 20, 2012
Grant date	Mar 3, 2015
Priority date	—
Expiry date	Mar 20, 2032

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T74/2186
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A wind turbine gear mechanism with a planetary gear stage arranged on the drive input side and with first and second spur gear stages arranged, in a gear mechanism housing, downstream of the planetary gear stage. The first spur gear stage rotationally and functionally connects a sun gear shaft of the planetary gear stage to an intermediate shaft, the second spur gear stage rotationally and functionally connects the intermediate shaft to a drive output shaft, and only one intermediate shaft is provided. In this case, the gear mechanism housing has a separation joint along which the gear mechanism housing can be divided into a main housing portion and a housing cover in such manner that a separation joint plane passes through the central axis of the intermediate shaft and the separation joint plane extends a distance away from the central axis of the sun gear shaft.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.