Wind turbine drivetrain
AssigneeSiemens Gamesa Renewable Energy A/S
InventorAndreas Rogg
Life of this patent
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Abstract
A wind turbine drivetrain is provided, including a low-speed shaft; a high-speed assembly including a planetary gearbox and a generator; a coupling assembly including a first annular part connected to the low-speed shaft, a second annular part connected to a first stage of the planetary gearbox, and a cylindrical intermediate part extending between the annular parts, a drivetrain housing arranged to enclose the low-speed shaft and the coupling assembly; having an outer access opening formed in the drivetrain housing; and an inner access opening formed in the intermediate part of the coupling assembly and arranged to align with the outer access opening to facilitate access to the interior of the coupling assembly. Also, further described is a method of performing a maintenance procedure on such a wind turbine drivetrain.
Claims15
A wind turbine drivetrain comprising:
- a low-speed shaft;
- a high-speed assembly comprising a planetary gearbox and a generator;
- a coupling assembly comprising a first annular part connected to the low-speed shaft, a second annular part connected to a first stage of the planetary gearbox, and a cylindrical intermediate part extending between the annular parts;
- and
- a drivetrain housing arranged to enclose the low-speed shaft and the coupling assembly;
- wherein,
- an outer access opening is formed in the drivetrain housing;
- and
- an inner access opening is formed in the intermediate part of the coupling assembly and arranged to align with the outer access opening to facilitate access to the interior of the coupling assembly.
A method of performing a maintenance procedure, comprising:
- providing a wind turbine drivetrain having a low-speed shaft, a high-speed assembly comprising a planetary gearbox and a generator, a coupling assembly comprising a first annular part connected to the low-speed shaft, a second annular part connected to a first stage of the planetary gearbox, and a cylindrical intermediate part extending between the annular parts, and a drivetrain housing arranged to enclose the low-speed shaft and the coupling assembly, wherein an outer access opening is formed in the drivetrain housing and an inner access opening is formed in the intermediate part of the coupling assembly and arranged to align with the outer access opening to facilitate access to the interior of the coupling assembly;
- turning a drivetrain unit to align the inner access opening with the outer access opening;
- inserting a tool through the aligned openings into the interior of the coupling assembly;
- and
- manipulating a fastener using the tool.
Dependencies are inferred from the claim text.