Planetary gear train for a wind turbine
The invention relates to a planetary gear train ( 1 ) for a wind turbine, comprising: a sun gear; an annular gear ( 13 ); a planet carrier ( 9 ) with multiple bearing seats ( 12 ); multiple planetary gear axles ( 8 ); multiple radial sliding bearings ( 23 ) for mounting the planet gear axles ( 8 ) in the planet carrier ( 9 ); multiple planet gears ( 5 ) which are each mounted in the planet carrier ( 9 ) by means of the planet gear axles ( 8 ). The planet carrier ( 9 ) has a parting plane ( 17 ) in the region of each of the bearing seats ( 12 ), wherein a first half shell ( 18 ) of one of the bearing seats ( 12 ) is formed by the planet carrier ( 9 ) and a second half shell ( 19 ) of one of the bearing seats ( 12 ) is formed in each case by a bearing cap ( 20 ).
1. A planetary gear train ( 1 ) for a wind turbine, comprising:
a sun gear ( 3 ),
an annular gear ( 13 ),
a planetary carrier ( 9 ) with a first bearing accommodating section ( 10 ) and a second bearing accommodating section ( 11 ),
a plurality of bearing seats ( 12 ),
a plurality of planetary gear axles ( 8 ),
a plurality of radial sliding bearings ( 23 ) for supporting the planetary gear axle ( 8 ) in the planetary carrier ( 9 ), wherein each of the planetary gear axles ( 8 ) are mounted respectively in one of the bearing seats ( 12 ) of the first bearing accommodating section ( 10 ) and in one of the bearing seats ( 12 ) of the second bearing accommodating section ( 11 ), and
a plurality of planetary gears ( 5 ), which are mounted respectively by the planetary gear axles ( 8 ) in the planetary carrier ( 9 ), wherein the planetary gears ( 5 ) are in engagement both with the sun gear ( 3 ) and also with the annular gear ( 13 ),
wherein the planetary carrier ( 9 ) has a parting plane ( 17 ) in the region of the bearing seats ( 12 ), wherein a first half shell ( 18 ) of one of the bearing seats ( 12 ) is formed by the planetary carrier ( 9 ) and a second half shell ( 19 ) of one of the bearing seats ( 12 ) is formed by a bearing cap ( 20 ) respectively and
wherein one of the radial sliding bearings ( 23 ) is designed as a bearing bush ( 24 ), wherein the bearing bush ( 24 ) is mounted securely in one of the bearing seats ( 12 ), and wherein an inner casing surface ( 26 ) of the bearing bush ( 24 ) is designed for receiving a relative movement between the bearing bush ( 24 ) and one of the planetary gear axles ( 8 ), the bearing bush ( 24 ) being mounted in the bearing seat ( 12 ) by a clamping, the clamping being produced by the bearing cap ( 20 ) which forms the bearing seat ( 12 ) together with the planetary carrier ( 9 ).
2. The planetary gear train as claimed in claim 1 , wherein one of the bearing caps ( 20 ) is designed such that it extends over one of the bearing seats ( 12 ) of the first bearing accommodating section ( 10 ) and the respectively associated bearing seat ( 12 ) of the second bearing accommodating section ( 11 ).
3. The planetary gear train as claimed in claim 1 , wherein one of the bearing caps ( 20 ) has a recess ( 22 ), through which one of the planetary gears ( 5 ) penetrates at least partly.
4. The planetary gear train as claimed in claim 1 , wherein one of the radial sliding bearings ( 23 ) is designed as a divided sliding bearing half shell ( 28 ).
5. The planetary gear train as claimed in claim 1 , wherein one of the planetary gear axles ( 8 ) is designed in one piece with one of the planetary gears ( 5 ).
6. The planetary gear train as claimed in claim 1 , wherein one of the bearing caps ( 20 ) is connected by a plurality of connecting elements ( 21 ) to a main body of the planetary carrier ( 9 ).
7. The planetary gear train as claimed in claim 1 , wherein an axial sliding bearing ( 29 ) is arranged respectively between the end faces ( 30 ) of one of the planetary gears ( 5 ) and the planetary carrier ( 9 ).
8. A wind turbine comprising a rotor and a generator, wherein between the rotor and the generator a planetary gear train ( 1 ) is arranged which is in operative connection with the rotor and the generator, wherein the planetary gear train ( 1 ) is designed as claimed in claim 1 .