Wind turbine gearbox and method of mounting a wind turbine gearbox
AssigneeSiemens Gamesa Renewable Energy Innovation & Technology S.L.
InventorsAlvaro Martinez Ciudad, Patrik Saenz De Ugarte Sevilla
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Abstract
A wind turbine gearbox for transmitting torque from a rotor to a generator is provided, including a gearbox axis and two planet stages, a first planet stage and a second planet stage, wherein the planet carrier of the second planet stage includes a main body part and a sun wheel shaft part connected to each other. The sun wheel shaft part is meshing with the planet wheels of the first planet stage. According to the invention, the main body part and the sun wheel shaft part of the planet carrier are joint by a rigid connection.
Claims14
A wind turbine gearbox for transmitting torque from a rotor to a generator comprising a gearbox axis and two planet stages, a first planet stage and a second planet stage, the second planet stage running at higher speed than the first planet stage, each planet stage comprising:
- a planet carrier;
- at least three planet wheels;
- and
- a hollow wheel and a sun wheel, wherein the planet wheels mesh with both the hollow wheel and the sun wheel;
- wherein the planet carrier of the second planet stage comprises a main body part and a sun wheel shaft part connected to each other;
- wherein the main body part is on a generator side of the planet carrier and the sun wheel shaft part is on a rotor side of the planet carrier;
- wherein the sun wheel shaft part is meshing with the planet wheels of the first planet stage;
- and
- wherein the main body part and the sun wheel shaft part of the planet carrier are joint by a rigid connection.
Dependencies are inferred from the claim text.