Integrated two-gear motor transmission for pure electric vehicle

The invention relates to an integrated two-gear motor transmission for a pure electric vehicle. The integrated two-gear motor transmission consists of a motor composed of a stator and a rotator; the output end of the rotator is connected with one end of a central gear shaft by a key; a stator corresponding to the output end of the is fixedly connected on a motor housing; an inner gear ring is arranged on the motor housing; a planetary gear is engaged with the central gear and the inner gear ring; a wheel shaft of the planetary gear is fixedly connected with one end of a first planetary carrier; the other end of the first planetary is connected to the radial direction of an output shaft by a first-gear clutch C1; an output shaft is arranged coaxial to the central gear shaft; and the radial direction of one side of the central gear shaft is connected to the radial direction of the output shaft of a second-gear clutch C2. With the adoption of the transmission, a motor can work at a high-efficiency area for a long time, and thus the vehicle driving range is increased; the motor and the transmission are integrated, thus the axial size of the power assembly is reduced, and the mechanical connection and the noise are reduced; the transmission is simple in distribution manner, compact in structure, small in volume and light in weight; and the vehicle light weight principle is met.