Patent ID: 11945302
Assignee: TSINGHUA UNIVERSITY
Field: Transport (Mechanical engineering)
Classification: CPC B  F  H | IPC B  F  H

Claim 4:
5. The low-floor electric axle assembly according to claim 4, wherein each of the hub motors comprises a hub motor stator, the hub motor rotor, a hub motor rotor output shaft, and a hub motor housing;
the hub motor rotor output shaft is fixedly connected to the hub motor rotor and extends out from end surfaces of two sides of the hub motor;
one end of the hub motor output shaft, which is proximate to an inner side of a corresponding wheel of the two wheels, is fixedly connected to a corresponding brake disc of the two brake discs; another end of the hub motor output shaft, which is proximate to an outer side of the corresponding wheel, penetrates the planetary gear reducer and is fixedly connected to the sun gear;
the hub motor housing is disposed in the corresponding half-cylinder structure of each of the two ends of the axle housing; an end of the hub motor housing, which is proximate to the outer side of the corresponding wheel, is provided with a sleeve arranged coaxially with the hub motor rotor output shaft; a bearing is arranged between the sleeve and the hub motor rotor output shaft to support the hub motor rotor output shaft; and
an outer side of the sleeve is fixedly connected to a gear ring of the planetary gear reducer, and the hub motor transmits the power to the hub through the planetary gear reducer.