Patent ID: 11867272
Assignee: ZF FRIEDRICHSHAFEN AG
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F  B | IPC B  F

Claim 11:
12. An electric axle drive for a motor vehicle comprising:
at least one electric machine;
a transmission device comprising:
at least two cylindrical wheels configured to transmit a rotational speed and/or a torque of an electric motor, wherein at least one of the two cylindrical wheels is a gearwheel, comprising:
a toothed ring; and
a wheel hub, which has a structured annular or corrugated web between a shaft seat and the toothed ring,
wherein the structured annular or corrugated web has a structure with deviations from uniform mass distribution about an axis of rotation of the gearwheel, and
wherein the structured annular or corrugated web has an axial symmetry to avoid imbalance, wherein the structured annular or corrugated web has adjacent, differently structured sectors with different stiffness and mass distribution, which are present in pairs and can be brought into congruence after a rotation of 180° about the axis of rotation of the gearwheel;
a differential; and
an inverter.