Planetary gear unit
A planetary stage of a planetary gear unit with a gearbox housing includes a ring gear, at least one planet gear, and a sun gear, which are rotatably positioned. The ring gear is connected via a tappet to a sun gear shaft of an upstream planetary gear stage, and is rotatably mounted in the gearbox housing. The planetary gear unit exhibits increased robustness by connecting the ring gear on a side opposite the tappet to a ring gear support that is seated in the gearbox housing.
1. A planetary stage of a planetary gear unit having a gear mechanism housing, comprising:
an internal gear;
at least one planetary gear; and
a sun gear;
wherein the internal gear, the at least one planetary gear, and the sun gear are rotatably positioned;
wherein the internal gear is:
connected via a driver to a sun gear shaft of a further planetary gear stage which is connected upstream; and
mounted rotatably in the gear mechanism housing;
wherein, on a side opposite to the driver, the internal gear is connected to an internal gear support that is mounted rotatably in the gear mechanism housing;
wherein the internal gear support is mounted in the gear mechanism housing via a support-side tapered roller bearing;
wherein the driver is mounted in the gear mechanism housing via a driver-side tapered roller bearing; and
wherein the driver-side tapered roller bearing and the support-side tapered roller bearing are positioned in a tandem-shaped manner with respect to each other.
2. The planetary stage as claimed in claim 1 , wherein the driver is mounted in the gear mechanism housing via a driver-side tapered roller bearing.
3. The planetary stage as claimed in claim 1 , wherein a mounting of the internal gear is configured to be prestressed axially, and is further configured to be set with axial play.
4. The planetary stage as claimed in claim 1 , wherein a planet spider which receives the at least one planetary gear is mounted in the gear mechanism housing via a driver-side tapered roller bearing and a support-side tapered roller bearing.
5. The planetary stage as claimed in claim 4 , wherein the driver-side tapered roller bearing and the support-side tapered roller bearing are positioned in an x-shaped manner with respect to each other.
6. The planetary stage as claimed in claim 4 , wherein a mounting of the planet spider is configured to be prestressed axially, and is further configured to be set with axial play.
7. The planetary stage as claimed in claim 1 , wherein the planetary stage is a gear mechanism stage of a continuous-flow power plant gear mechanism that is an ocean current power plant gear mechanism or a wind power plant gear mechanism.
8. A wind power plant, comprising:
a wind power plant gear mechanism that includes a planetary stage having:
an internal gear;
at least one planetary gear; and
a sun gear;
wherein the internal gear, the at least one planetary gear, and the sun gear are rotatably positioned;
wherein the internal gear is:
connected via a driver to a sun gear shaft of a further planetary gear stage which is connected upstream; and
mounted rotatably in the gear mechanism housing;
wherein, on a side opposite to the driver, the internal gear is connected to an internal gear support that is mounted rotatably in a gear mechanism housing;
wherein the internal gear support is mounted in the gear mechanism housing via a support-side tapered roller bearing;
wherein the driver is mounted in the gear mechanism housing via a driver-side tapered roller bearing; and
wherein the driver-side tapered roller bearing and the support-side tapered roller bearing are positioned in a tandem-shaped manner with respect to each other.
9. A planetary stage of a planetary gear unit having a gear mechanism housing, comprising:
an internal gear;
at least one planetary gear; and
a sun gear;
wherein the internal gear, the at least one planetary gear, and the sun gear are rotatably positioned;
wherein the internal gear is:
connected via a driver to a sun gear shaft of a further planetary gear stage which is connected upstream; and
mounted rotatably in the gear mechanism housing;
wherein, on a side opposite to the driver, the internal gear is connected to an internal gear support that is mounted rotatably in the gear mechanism housing; and
wherein a mounting of the internal gear is configured to be prestressed axially, and is further configured to be set with axial play.
10. The planetary stage as claimed in claim 9 , wherein the driver is mounted in the gear mechanism housing via a driver-side tapered roller bearing.
11. The planetary stage as claimed in claim 9 , wherein a planet spider which receives the at least one planetary gear is mounted in the gear mechanism housing via a driver-side tapered roller bearing and a support-side tapered roller bearing.
12. The planetary stage as claimed in claim 11 , wherein the driver-side tapered roller bearing and the support-side tapered roller bearing are positioned in an x-shaped manner with respect to each other.
13. The planetary stage as claimed in claim 9 , wherein the planetary stage is a gear mechanism stage of a continuous-flow power plant gear mechanism that is an ocean current power plant gear mechanism or a wind power plant gear mechanism.