Shaft-sleeve-free full-suspension magnetic stirrer

Abstract

The invention relates to a shaft-sleeve-free full-suspension magnetic stirrer, which comprises a driving device, a speed reducer and an inner driving shaft, the outer portion of the inner driving shaft is sequentially sleeved with a rack and a sealing sleeve from bottom to top, and the sealing sleeve is connected with the rack through a welding chassis; a lower magnetic suspension sleeve, a driving magnetic cylinder and an upper magnetic suspension sleeve are sequentially arranged outside the sealing sleeve from bottom to top in a sleeving manner, stirring blades are arranged outside the uppermagnetic suspension sleeve, the driving magnetic cylinder and the lower magnetic suspension sleeve, and the upper ends of the stirring blades are fixed to a magnetic suspension positioning sleeve atthe top end of the inner driving shaft; lower magnetic rings with opposite polarities are respectively arranged on the inner walls of the lower inner magnetic suspension sleeve and the lower outer magnetic suspension sleeve; upper magnetic rings with opposite polarities are respectively arranged on the inner walls of the upper inner magnetic suspension sleeve and the upper outer magnetic suspension sleeve; and magnets are arranged on the inner walls of the inner driving magnetic cylinder and the outer driving magnetic cylinder. The problem that liquid medicine is polluted by abrasive dust generated by magnetic stirring of the shaft sleeve is solved, the structure is simple and durable, the service life of the stirrer is prolonged, and the liquid medicine stirring quality is improved.

Description

technical field [0001] The invention relates to the technical field of magnetic stirrers, in particular to a full suspension magnetic stirrer without a shaft sleeve. Background technique [0002] With the continuous improvement and deepening of the process in the biopharmaceutical industry and the control of production costs, the lower stirring device is used more and more widely in the tank. At present, the lower magnetic stirring has gradually replaced the mechanical stirring that has been used for many years and has become the mainstream configuration. , At present, most of the magnetic stirrers used are imported from abroad, and there are very few domestic manufacturers, and most of them use contact friction design, both axial friction and radial friction, regardless of whether they are foreign or domestic brands. During use, the male and female bearings of the lower magnetic stirring core components are damaged greatly, which greatly reduces the service life of the stir...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a full-suspension magnetic stirrer without a shaft sleeve, which solves the problem of grinding debris polluting the liquid medicine caused by the magnetic stirring of the shaft sleeve. quality

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