Structure for balancing axial force of magnetic suspension compressor

The utility model discloses a structure for balancing axial force of a magnetic suspension compressor, which is characterized in that a first-stage impeller is arranged in a first-stage compressor, a second-stage impeller is arranged in a second-stage compressor, the diameter of the first-stage impeller is larger than that of the second-stage impeller, the first-stage impeller and the second-stage impeller are oppositely mounted on two sides of a rotor, and the overall axial force of the rotor of the compressor is balanced by adjusting the sizes of the first-stage impeller and the second-stage impeller. The back of the first-stage impeller and the back of the second-stage impeller are provided with bevel teeth, the contact positions of the first-stage shaft seal and the first-stage impeller and the contact positions of the second-stage shaft seal and the second-stage impeller are provided with straight teeth, a sealing structure formed by the bevel teeth and the straight teeth improves the gas production rate