Transmission device with at least one planetary gearset and a frictional shift element
AssigneeZF Friedrichshafen AG
InventorsJosef Haupt, Martin Brehmer
Life of this patent
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Abstract
A transmission device (1) having at least one planetary gearset (2) and at least one frictional shift element (3) by which a ring gear (4), of the planetary gearset (2), can be connected to a component (5) that is fixed to a transmission housing. The ring gear (4) of the planetary gearset (2) is at least partially radially arranged within an inner disk carrier (6) of the shift element (3). The ring gear (4) and the inner disk carrier (6) are supported on a main transmission shaft (7) by a common carrier element (8). The ring gear (4) and the inner disk carrier (6) are radially separated from one another at least over a certain area.
Claims15
A transmission device (1) comprising at least one planetary gearset (2) and at least one frictional shift element (3), by which a ring gear (4) of the planetary gearset (2) is connectable to a component (5) fixed to a transmission housing,
- the ring gear (4) of the planetary gearset (2) being arranged partially radially within an inner disk carrier (6) of the shift element (3) and the ring gear (4) and the inner disk carrier (6) being supported by a common carrier element (8) in an area of a main transmission shaft (7),
- the ring gear (4) and the inner disk carrier (6) being radially spaced from one another in a circumferential direction at least over a certain area,
- the ring gear (4) is rotationally fixed to the carrier element (8) by an axial crown gearing (13) and a circlip (31),
- a clearance fit is provided between the axial crown gearing (13) and axial gaps (15) of the carrier element (8) through which teeth (14) of the crown gearing (13) of the ring gear (4) pass through the carrier element (8), and
- a quotient of the number of teeth (21) of the inner disk carrier (6) and the number of teeth (14) of the axial crown gearing (13) of the ring gear (4) is a whole number.
A transmission device (1) comprising at least one planetary gearset (2) and at least one frictional shift element (3), by which a ring gear (4) of the planetary gearset (2) is connectable to a component (5) fixed to a transmission housing,
- the ring gear (4) of the planetary gearset (2) being arranged partially radially within an inner disk carrier (6) of the shift element (3) and the ring gear (4) and the inner disk carrier (6) being supported by a common carrier element (8) in an area of a main transmission shaft (7),
- the ring gear (4) and the inner disk carrier (6) being radially spaced from one another in a circumferential direction at least over a certain area, and
- the carrier element (8) is a casting and has a cast-in steel insert (23) in an axial contact area of a tooth array (22) of the ring gear (4).
A transmission device comprising at least one planetary gearset and at least one frictional shift element, the planetary gearset comprising a ring gear and the shift element comprising an inner disk carrier,
- the inner disk carrier being continually connected to a radially extending common carrier element such that the inner disk carrier and the carrier element are rotationally fixed with respect to each other,
- an axial end of the ring gear of the planetary gearset comprises a radially extending face that directly abuts and is continually connected to the radially extending carrier element such that the ring gear and the carrier element are rotationally fixed with respect to each other, and the ring gear is axially located at least partially radially within and radially spaced from the inner disk carrier of the shift element,
- the ring gear is connectable, via the shift element, to a transmission housing.
Dependencies are inferred from the claim text.