Rotor structure for long-term effective operation

A rotor structure for long-term effective operation is disclosed. The rotor structure comprises: a rotor body and a plurality of rotor blades. The rotor blades are disposed around the outer side of the rotor body and vertically distributed to form a plurality of rotor blade layers. The rotor blade layers have at least one first rotor blade layer and a plurality of second rotor blade layers. The end of the first rotor blade layer is located at a first horizontal distance from the side wall of a containing space of a turbo molecular vacuum pump, and the end of the second rotor blade layers are located at a second horizontal distance from the side wall of the containing space. The first horizontal distance is substantially greater than the second horizontal distance such that the rotor blades are protected from contacting the deposits generated on the ladder section of the containing space during the rotation process under the condition of maintaining the pumping efficiency, thus effectively preventing the rotor