Planetary gear with improved planet gear carrier support
AssigneeFlender GmbH
InventorArno Klein-Hitpass
Life of this patent
Estimating the term…
Abstract
A planetary gear includes a housing, a first gear stage having a first planet gear carrier, a bearing disposed on a wall of the housing, and a first shaft connected to the first planet gear carrier for torque transmission and supported in the bearing. The planetary gear further includes a second gear stage having a second planet gear carrier connected to a sun gear shaft of the first gear stage for torque transmission. The second planet gear carrier is supported in at least one of two ways, a first way in which the second planet gear carrier is supported in an axially inner bearing arranged on the first planet gear carrier, a second way in which the second planet gear carrier is supported in an axially outer bearing arranged in the wall of the housing.
Claims13
A planetary gear, comprising:
- a housing;
- a first gear stage comprising a first planet gear carrier, a first bearing disposed on a wall of the housing, and a first shaft connected to the first planet gear carrier for torque transmission and supported in the first bearing;
- a second gear stage comprising a second planet gear carrier connected to a sun gear shaft of the first gear stage for torque transmission, said second planet gear carrier being supported in at least one of two ways, a first way in which the second planet gear carrier is supported in an axially inner second bearing arranged on the first planet gear carrier, a second way in which the second planet gear carrier is supported in an axially outer third bearing arranged in the wall of the housing;
- and
- a stub tooth section formed between the sun gear shaft and the second planet gear carrier.
A drive train for a wind energy installation, comprising
- a rotor shaft;
- a generator;
- and
- a planetary gear connecting the rotor shaft with the generator for transmission of torque, said planetary gear comprising a housing, a first gear stage comprising a first planet gear carrier, a first bearing disposed on a wall of the housing, and a first shaft connected to the first planet gear carrier for torque transmission and supported in the first bearing, a second gear stage comprising a second planet gear carrier connected to a sun gear shaft of the first gear stage for torque transmission, said second planet gear carrier being supported in at least one of two ways, a first way in which the second planet gear carrier is supported in an axially inner second bearing arranged on the first planet gear carrier, a second way in which the second planet gear carrier is supported in an axially outer third bearing arranged in the wail of the housing, and a stub tooth section formed between the sun gear shaft and the second planet gear carrier.
A wind energy installation, comprising
- a nacelle;
- a rotor fastened to the nacelle;
- and
- a drive train comprising a generator, a planetary gear, and a rotor shaft connecting the rotor to the planetary gear, said planetary gear connecting the rotor shaft with the generator for transmission of torque, said planetary gear comprising a housing, a first gear stage comprising a first planet gear carrier, a first bearing disposed on a wall of the housing, and a first shaft connected to the first planet gear carrier for torque transmission and supported in the first bearing, and a second gear stage comprising a second planet gear carrier connected to a sun gear shaft of the first gear stage for torque transmission, said second planet gear carrier being supported in at least one of two ways, a first way in which the second planet gear carrier is supported in an axially inner second bearing arranged on the first planet gear carrier, a second way in which the second planet gear carrier is supported in an axially outer third bearing arranged in the wall of the housing, and a stub tooth section formed between the sun gear shaft and the second planet gear carrier.
Dependencies are inferred from the claim text.