Rotor structure and motor

The invention belongs to the technical field of motors, and discloses a rotor structure and a motor, the rotor structure comprises a rotor core, a permanent magnet, a first short shaft, a second short shaft and a sheath, the rotor core is formed by stacking a plurality of steel silicon wafers, one end of the rotor core is connected with the first short shaft, the other end of the rotor core is connected with the second short shaft, the rotor core is sleeved with the permanent magnet, and the sheath is sleeved with the permanent magnet. And the sheath is sleeved on the permanent magnet. According to the invention, the rotor core is used for replacing a medium-short shaft in the related technology, the rotor core is formed by laminating the high-permeability silicon steel sheets, on one hand, the medium-short shaft has high permeability, on the other hand, the rotor core adopts the silicon steel sheet lamination, and the magnetic resistance between the silicon steel sheets is greatly reduced compared with a sol