Rotor shaft and rotor structure

The utility model discloses a rotor shaft and a rotor structure. The rotor shaft comprises a shaft body with a mounting cavity and a cooling mechanism mounted in the mounting cavity, the cooling mechanism comprises an oil inlet pipe and a sleeve arranged on the oil inlet pipe in a sleeving mode, and a closed cavity is formed between the sleeve and the oil inlet pipe. One end of the shaft body is provided with a shaft body input channel communicated with an oil inlet of the oil inlet pipe; a cooling runner is formed between the sleeve and the inner surface of the mounting cavity, and the cooling runner is communicated with an oil outlet of the oil inlet pipe; a discharge hole communicated with the cooling flow channel is formed in the cavity wall of the mounting cavity, and the distance between the discharge hole and the oil inlet is smaller than the distance between the discharge hole and the oil outlet in the axial direction of the shaft body. The oil inlet pipe and the cooling oil channel are separated thro