Hub motor with multiple setting modes of rim and braking device

The invention provides a hub motor with multiple setting modes of a rim and a braking device. A stator core coil of the hub motor is fixed on a motor shaft through a stator seat; a rotor core is fixed on the inner circumference of a motor shell; and the rim is arranged on the motor shell, a special-shaped end cover or an outside end cover, or a combined rim is adopted, one half rim is cast on the motor shell, and the other half rim is detachable. A brake disc or a brake drum is arranged or cast on the special-shaped end cover of the motor. The diameter of the inside end of the motor shaft is enlarged to form a protruding annular column, and through holes through which electric wires and cooling water pipes pass are formed on four sides in the annular column; and the outside end of the motor shaft is provided with a gap adjusting fastening bearing or a gap adjusting fastening nut for adjusting the gaps of electric driven wheels. When the hub motor is used as auxiliary power of a hybrid electric vehicle, a holl