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Magnetic couplings, especially separation tanks for magnetically coupled pumps

A magnetic coupling pump and separation tank technology, applied in the direction of permanent magnet clutch/brake, electric brake/clutch, pumping device for elastic fluid, etc., can solve the problem of separation tank damage and avoid stress peak , to avoid the effect of stress transition

Inactive Publication Date: 2015-12-23
RUHRPUMPEN GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, extreme care must be taken during installation, i.e. when screwing the separator pot on the pump assembly, since the ceramic of the separator pot is very sensitive to unfavorable stress transitions or stress peaks, i.e. for example to uneven tightening of threaded fasteners, the separator pot will also be destroyed

Method used

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  • Magnetic couplings, especially separation tanks for magnetically coupled pumps
  • Magnetic couplings, especially separation tanks for magnetically coupled pumps
  • Magnetic couplings, especially separation tanks for magnetically coupled pumps

Examples

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Embodiment Construction

[0033] The same parts are always shown with the same reference numerals in the different illustrations, so these parts are generally only described once.

[0034] figure 1 A separation tank 1 such as a magnetic coupling is shown, eg a separation tank 1 of a magnetically coupled pump. Such a magnetically coupled pump has, for example, an inner rotor and an outer rotor, each having a magnet. The split pot 1 has a flange 2 and a bottom 3 lying opposite it. A substantially cylindrical wall 4 extends between the base 3 and the flange 2 . The wall 4 is arranged between the magnets of the inner rotor and the outer rotor, forming an air gap therein. With magnetically coupled pumps, the pump power is transmitted from the drive shaft via the rotor with magnets (outer rotor) contact-free and essentially slip-free to the pump-side magnetic carrier (inner rotor). The inner rotor drives the pump shaft, which is seated in a slide bearing lubricated by the conveying medium, that is to say...

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PUM

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Abstract

The invention relates to a magnetic coupling, in particular to a magnetic coupling pump, which has an inner rotor and an outer rotor with a separating tank (1) arranged therebetween, said separating tank having a flange (2). Said flange (2) can be fixed to the coupler assembly (6), preferably to the housing cover (6) by means of a counter-flange (7). The separation tank (1) is made of ceramics, wherein the coupler assembly (6) and the butt flange (7) can also be made of metal materials. Detrimental stress transitions or stress peaks and thermal expansion of the material can cause damage to the split pot, especially the flange of the split pot, or cause relaxation leading to leakage. According to the invention it is therefore proposed to provide spherical protrusions ( 13 ) on the flange ( 2 ), said spherical protrusions engaging in corresponding spherical recesses ( 14 ). The invention also proposes that a compensating element (17) is arranged between the flange (2) and the counter-flange (7). The compensating element (17) can be provided at one end face (18, 19) thereof with a spherical recess (14) corresponding to the spherical protrusion (13).

Description

technical field [0001] The invention relates to a magnetic coupler, especially a magnetic coupling pump. The magnetic coupling pump has an inner rotor and an outer rotor with magnets respectively, and a separation tank with a flange is arranged between the inner rotor and the outer rotor. , the flange is preferably fixed to the coupler assembly, preferably to the housing cover, by means of a counter-flange. Background technique [0002] Magnetically coupled pumps are known, for example as described in DE 10 2009 022 916 A1. In this case, the power of the pump is transmitted from the drive shaft via the rotor with magnets (outer rotor) to the pump-side magnetic carrier (inner rotor) in a contactless and substantially slip-free manner. The inner rotor drives the pump shaft, which is seated in a slide bearing lubricated by the conveying medium, that is to say in a hydrodynamic slide bearing. The separating pot with its cylindrical wall is arranged between the outer rotor and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K5/128H02K49/10F04D13/02F16L23/032F16L23/16
CPCF04D29/628H02K49/106F04D13/025Y10T403/21F16B2200/506H02K49/10
Inventor G·施奈特M·维斯比D·凯普
Owner RUHRPUMPEN GMBH