Pump shaft axial force adaptive adjusting suspended magnetic pump

The invention discloses a pump shaft axial force adaptive adjusting suspended magnetic pump and belongs to the technical field of magnetic pumps. The pump shaft axial force adaptive adjusting suspended magnetic pump comprises a pump body, a pump shaft, a middle frame body, an impeller, an inner magnetic steel component, an outer magnetic steel component and a segregation sleeve, wherein inner andouter tooth engagement transmission is adopted between the inner magnetic steel component and an impeller tail sleeve, and the inner magnetic steel component is provided with an axial slip clearance on the impeller tail sleeve. According to the pump shaft axial force adaptive adjusting suspended magnetic pump, when the pump runs, the inner magnetic steel component can perform axial moving on the impeller tail sleeve adaptively to make the inner magnetic steel component be capable of being automatically adjusted to a middle position relative to the outer magnetic steel component, so that the axial acting force on the p