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US 12,392,394 B2Granted
Planetary gearbox with thrust washer for two ring gears, axial ring gear support, thrust washer for a ring gear, and electric vehicle drive train with axially supported ring gears
AssigneeSchaeffler Technologies AG & Co. KG
InventorsJohann Averichev, Sarah Sponsel, Peter Welker
Life of this patent
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Abstract
A planetary gearbox having two ring gears arranged in different planes, of which a first ring gear and a second ring gear are designed to mesh during operation with at least one planet gear of a respective planet gear set, wherein a thrust washer is arranged axially between the two ring gears and a first contact area for making contact with the first ring gear is present on the first end face and a second contact area for making contact with the second ring gear is present on the second end face.
Claims19
A planetary gearbox, comprising:
- first and second ring gears which are arranged in different planes;
- a planet gear set, the first ring gear and the second ring gear are designed to mesh, during operation, with at least one planet gear of the planet gear set;
- a thrust washer arranged axially between the first and second ring gears, a first contact area on a first end face of the thrust washer is configured for making contact with the first ring gear and a second contact area on a second end face of the thrust washer is configured for making contact with the second ring gear;
- the first ring gear has a first outer diameter that is smaller than a second outer diameter of the second ring gear;
- and
- the thrust washer has a first bend and a second bend, such that the first contact area adjoins a radially inner edge on a first axial side of the thrust washer and the second contact area adjoins a radially outer edge on a second axial side of the thrust washer.
3 more elements
A planetary gearbox, comprising:
- first and second ring gears which are arranged axially offset in different planes;
- a planet gear set, the first ring gear and the second ring gear are designed to mesh, during operation, with at least one planet gear of the planet gear set;
- a thrust washer arranged axially between the first and second ring gears, a first contact area on a first end face of the thrust washer is configured for making contact with the first ring gear and a second contact area on a second end face of the thrust washer, opposite to the first end face, is configured for making contact with the second ring gear;
- the thrust washer has a first bend and a second, oppositely directed bend located between the first contact area and the second contact area, and the first contact area adjoins a radially inner edge of the thrust washer and the second contact area adjoins a radially outer edge of the thrust washer;
- and
- a sliding sleeve adapted for axially displacing the first ring gear.
3 more elements
A planetary gearbox, comprising:
- first and second ring gears which are arranged axially offset in different planes;
- a planet gear set, the first ring gear and the second ring gear are designed to mesh, during operation, with at least one planet gear of the planet gear set;
- a thrust washer arranged axially between the first and second ring gears, a first contact area on a first end face of the thrust washer is configured for making contact with the first ring gear and a second contact area on a second end face of the thrust washer, opposite to the first end face, is configured for making contact with the second ring gear;
- the thrust washer has a first bend and a second, oppositely directed bend located between the first contact area and the second contact area, and the first contact area adjoins a radially inner edge of the thrust washer and the second contact area adjoins a radially outer edge of the thrust washer;
- and
- wherein the thrust washer has an anti-rotation device on the outer edge, and the anti-rotation device engages in a housing.
3 more elements
Dependencies are inferred from the claim text.