Rotational decoupling for assembly and disassembly of a gearbox-integrated mounted generator rotor

Patent metadata

Field	Value
Publication number	US-12146468-B2
Application number	US-202217810350-A
Country	US
Kind code	B2
Filing date	Jul 1, 2022
Priority date	Jul 14, 2021
Publication date	Nov 19, 2024
Grant date	Nov 19, 2024

Abstract

An arrangement including a transmission and a generator is disclosed. The generator includes a generator rotor being non-rotatably connected to an output shaft of the transmission or configured to be connectable to the output shaft of the transmission. An assembly bearing that supports the generator rotor in the output shaft is also disclosed.

First claim

The invention claimed is:

1. A transmission comprising:
an output shaft with a shaft screw flange at an axial end;
a generator rotor with a rotor screw flange,
wherein the rotor screw flange and the shaft screw flange are configured to be joined by a screw connection to form a non-rotatable connection between the output shaft and the generator rotor, and

wherein the generator rotor extends radially inward from the rotor screw flange and extends axially into a radial interior of the output shaft.

2. The transmission according to claim 1 , wherein the generator rotor is releasably connected to the output shaft by the screw connection.

3. The transmission according to claim 1 , wherein the screw connection is a bolt that bolts the shaft screw flange to the rotor screw flange.

4. The transmission according to claim 1 , wherein the generator rotor is axially and displaceably supported in the output shaft.

5. The transmission according to claim 1 , further comprising an inner race and an outer race,
wherein the inner race is arranged radially inside the outer race,
wherein the outer race is joined to the output shaft, and
wherein the inner race is joined to the generator rotor.

6. The transmission according to claim 1 , wherein the output shaft or at least one bearing of the output shaft at least partly supports a weight of the generator rotor.

7. The transmission according to claim 1 , comprising a housing screw connection for the generator rotor, wherein the generator rotor is configured to be fastenable to a housing by the housing screw connection.

8. The transmission according to claim 1 , comprising an input shaft and a wind rotor that is non-rotatably connected to the input shaft.

9. The transmission according to claim 8 , comprising a wind rotor screw connection for the wind rotor, wherein the wind rotor is configured to be fastenable to a housing by the wind rotor screw connection.

10. A method for assembling an arrangement comprising a transmission, a generator with a generator rotor configured to be non-rotatably connectable to an output shaft of the transmission, wherein an assembly bearing supports the generator rotor at least partially inside of a radial interior of the output shaft, and a screw connection for the generator rotor, wherein the generator rotor is configured to be fastenable to a housing by the screw connection, the method comprising:
releasing the assembly bearing of the generator rotor;
rotating the generator rotor relative to the output shaft; and
non-rotatably connecting the generator rotor to the output shaft by a rotor screw flange, wherein the generator rotor extends radially inward from the rotor screw flange and extends axially into the radial interior of the output shaft.

11. The method according to claim 10 , comprising removing the assembly bearing.

12. A method for disassembling an arrangement comprising a transmission, a generator with a generator rotor configured to be non-rotatably connectable to an output shaft of the transmission, wherein an assembly bearing supports the generator rotor at least partially inside of a radial interior of the output shaft, and a screw connection for the generator rotor, wherein the generator rotor is configured to be fastenable to a housing by the screw connection, the method comprising:
releasing a non-rotatable connection of the generator rotor to the output shaft by a rotor screw flange, wherein the generator rotor extends radially inward from the rotor screw flange and extends axially into the radial interior of the output shaft;
rotating the generator rotor relative to the output shaft; and
fastening the generator rotor to the housing via the screw connection.

13. The method according to claim 12 , comprising installing the assembly bearing.

14. The method according to claim 12 , comprising axially displacing the generator rotor from within the radial interior of the output shaft.

15. The transmission according to claim 5 , wherein the inner race and the outer race are configured to be axially displaced relative to one another.

16. The transmission according to claim 5 , wherein the inner race and the generator rotor are joined by an alignment gearing.

17. The transmission according to claim 16 , wherein the generator rotor is configured to be axially displaced from within the radial interior of the output shaft to an outside of the radial interior of the output shaft when the screw connection is released.

18. The transmission according to claim 1 , wherein the generator rotor is configured to be axially fixed by the screw connection.

Assignees

• Zahnradfabrik Friedrichshafen

Inventors

• De Laet Wim
• Maes Andy
• Sperlich Ralf

Classifications

• H02K7/183

  wherein the turbine is a wind turbine (adaptation of a wind turbine to an electric generator F03D9/25) · CPC title

• H02K7/116

  with gears · CPC title

• H02K7/088

  radially supporting the rotor directly · CPC title

• F05D2230/70

  Disassembly methods · CPC title

• F03D80/70 Primary

  Bearing or lubricating arrangements · CPC title