Zf Friedrichshafen Ag

Marc Seeberger

Matthias Reisch

Eckhardt Lübke

Martin Rattay

Christoph Erkens

Stefan Beck

Michael Wechs

Jürgen Wafzig

A gear transmission includes a first helical-cut gearwheel () and a second helical-cut gearwheel () engaged for transmitting torques in different directions. The first gearwheel () and the second gearwheel () each include corresponding ring-shaped thrust collars (), and corresponding thrust collars () each form a race () having an overlap region. A first race () and a second race () form an overlap region for traction torques, and a third race () and a fourth race () form an overlap region for overrun torques. Each overlap region includes a contact surface or a contact point (), and each contact point () is situated on a contact circle diameter (). The contact surfaces or contact points () for traction torques and the contact surfaces or contact points () for overrun torques are radially offset.

Gearwheel transmission

A toothing arrangement () includes at least one first helical-cut spur gear () and a second helical-cut spur gear (), which form a common meshing toothing, and as least one thrust collar () with two races () for axial load compensation on both sides in the region of the meshing toothing. The annular thrust collar () includes an internal gearing (), which, in the mounted state, is supported in a circumferential groove () interrupting the tooth system () of the first spur gear (). At least one rotation prevention means is associated with the thrust collar (). The rotation prevention means is movable from a radially inner region to a radially outer region of the first spur gear () into an interlock position. A transmission may include the toothing arrangement.

Toothing arrangement

A planetary transmission includes a plurality of planetary gear sets. Each of the plurality of planetary gear sets has a plurality of planetary gear set shafts. At least one additional rotatably mounted shaft is connectable to at least one of the plurality of planetary gear set shafts by at least one shift element in order to realize at least one ratio. The at least one additional rotatably mounted shaft is also connectable into power flow between an input shaft and an output shaft by the at least one shift element. The at least one additional rotatably mounted shaft is operatively connected directly to a component fixed to a housing, by which operative connection actuation energy for the at least one shift element is transferable from the component fixed to the housing into the at least one additional rotatably mounted shaft.

Planetary gearing device having a plurality of planetary gear set shafts and at least one further rotatably supported shaft

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Oberteuringen, Germany

Marc Seeberger