Suspension magnetic pump with self-adaptive adjustment of axial force of pump shaft

The utility model discloses a suspension magnetic pump with self-adaptive adjustment of axial force of a pump shaft, and belongs to the field of magnetic pumps. The magnetic drive pump comprises a pump body, a pump shaft, a middle frame body, an impeller, an inner magnetic steel assembly, an outer magnetic steel assembly and an isolation sleeve, the inner magnetic steel assembly and a tail sleeveof the impeller are in meshed transmission through inner teeth and outer teeth, and the inner magnetic steel assembly is provided with an axial sliding gap on the tail sleeve of the impeller. The inner magnetic steel assembly can adaptively and axially move on the impeller tail sleeve, so that the inner magnetic steel assembly can be automatically adjusted to the middle position relative to the outer magnetic steel assembly, the axial acting force of the inner magnetic steel assembly on the pump shaft is reduced, the running friction of the magnetic pump is reduced, the running of the magneticpump is more stable, the