Pump shaft axial force adaptive adjusting suspended magnetic pump

Abstract

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 pump shaft by the inner magnetic steel component is reduced, magnetic pump running friction is reduced to make running of the magnetic pump be more stable, the efficiency of the pump is improved, and the service life of the pump is prolonged; and the pump shaft of the magnetic pump does not rotate, the problem of loosing of a locking nut on the pump shaft is solved, and incombination with a Morse taper fit design adopted between the impeller tail sleeve and a sliding bearing, assembly and replacement of the sliding bearing are made to be more quick and convenient.

Description

technical field [0001] The invention relates to a magnetic force pump, in particular to a suspension magnetic force pump with self-adaptive adjustment of the axial force of the pump shaft. Background technique [0002] The magnetic pump is a kind of fluid conveying machine, which is composed of an outer magnetic rotor, an inner magnetic rotor and a non-magnetic isolation sleeve. When the motor drives the outer magnetic rotor to rotate, the magnetic field can penetrate the air gap and non-magnetic materials, and drive the impeller to rotate. The connected internal magnetic rotors rotate synchronously to realize the non-contact synchronous transmission of power, and transform the dynamic sealing structure that is easy to leak into a static sealing structure with zero leakage. Since the pump shaft and the inner magnetic rotor are completely sealed by the pump body and the isolation sleeve, the problems of "running, leaking, dripping, and leaking" are completely solved, and flam...

AI Technical Summary

Problems solved by technology

[0004] (1) The assembly of sliding bearings in magnetic pumps is difficult, and usually requires heating and assembly, which requires high technical level of workers, which brings some inconvenience to the manufacture of magnetic pumps;

[0005] (2) Due to assembly errors and other reasons between the inner magnetic assembly and the outer magnetic assembly, the magnetic force acting on the axial direction of the pump shaft is unbalanced, so there is a large axial force on the pump shaft, and long-term work is easy to cause The pump shaft, bearings and static rings are worn and the axial rotation stability deteriorates, which reduces the service life of the magnetic pump and prevents the working efficiency of the magnetic pump from being further improved.

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