The invention provides an electric wheel with a large-gear-ratio planetary
reducer and a vehicle. The electric wheel comprises a hub motor, a hub
brake, the one-stage large-gear-ratio planetary
reducer, a hub
assembly and a rim. A gear shaft of a sun gear of the one-stage planetary
reducer is connected with a rotor shaft of the hub motor through a jack shaft, and a gear ring is connected with a
motor shaft body end cover
flange through a gear ring fixing frame. A planetary carrier is connected with the rim, and
motor power is transmitted to the rim through
speed reduction and torsion increasing of the one-stage planetary reducer, and finally acts on a tire. Oppositely-arranged hub bearings are mounted on the left side of the motor end cover
flange, and external components of the hub
assembly are supported by the bearings so as to achieve bearing of the wheel. According to the electric wheel, through
connection design of the planetary reducer and the hub
assembly, large-transmission-ratio
speed reduction and torsion increasing of the
motor power are achieved, the ground load of the tire, the
motor power and mechanical braking force are reasonably transmitted in a hub, interface matching and torque and rotating speed characteristic matching among the high-speed hub motor, the low-speed rim and the hub
brake are achieved, and the electric wheel is low in weight, high in integration level, compact in structure, efficient in transmission, and particularly suitable for being applied to the large-torque and heavy-load heavy vehicle adopting the electric wheel for driving.