Patent ID: 11858342
Assignee: ZF FRIEDRICHSHAFEN AG
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 12:
13. An assembly with an electric-motor-driven rigid axle for vehicles, the rigid axle having
an axle body,
two wheel carriers, and at least one attachment point for fixing the axle body to a vehicle frame,
the axle body is of elongated form and at opposite longitudinal ends in each case one of the wheel carriers is provided, each of the wheel carriers is rotatable relative to the axle body about a wheel axis, and the at least one attachment point is designed to fix the axle body onto the vehicle frame in such a manner that, when viewed in a cross-section of the rigid axle, the axle body faces toward the vehicle frame at an upper end and an axis of the axle body forms a vertical axis that extends in a direction toward the upper end, which axis intersects with the wheel axis,
the rigid axle further comprising two electric motors arranged close to wheels and two offset transmissions, such that, in each case, one of the electric motors serves to drive one of the wheel carriers and, in each case, one of the offset transmissions is interconnected between one of the electric motors and the wheel carrier in driving association therewith, and by virtue of the offset transmission, the motor shaft of the respective electric motor and the wheel axis of the associated wheel carrier are arranged offset relative to one another, and when viewed in the cross-section of the rigid axle, the motor shaft of the respective electric motor and the wheel axis of the associated wheel carrier offset relative thereto form a point of intersection on an offset line, the offset transmissions are orientated in such a manner that, when viewed in the cross-section of the rigid axle, the offset line and the vertical axis are positioned at an angle to one another, a vertex of the angle is at the point of intersection of the wheel axis with the offset line , a size of the angle having a value between 1 degree and 90 degrees, and the assembly having
two wheel brakes, of which in each case one of the wheel brakes is associated with one of the wheel carriers of the rigid axle, the electric motors of the rigid axle are each associated with and accommodated in a housing component of the axle body of the rigid axle, and in each case adjacent to the housing component there is arranged an actuator housing of an actuator device of the wheel brake, and an outer circumference of the actuator housing is under a tangent of the housing component that extends perpendicularly to the vertical axis.