Method for supporting a spinning rotor and bearing system, spinning rotor and support bearings
AssigneeRieter CZ s.r.o.
InventorsMathias Burchert, Milan Moravec, Markus Kuebler, Jiri Sloupensky, Siegfried Silber, Peter Dirnberger
Life of this patent
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Abstract
A bearing system and associated method of operation are provided to support a spinning rotor having a pot and a shaft of an open-end spinning device with two radial bearings and at least one axial support bearing, wherein at least one of the radial bearings is an active magnetic bearing. The axial support bearing is configured such that a magnetic bearing acts in opposition to one or both of an aerostatic air bearing or a mechanical starting element.
Claims8
A bearing system of a spinning rotor having a pot and a shaft of an open-end spinning device, comprising:
- radial bearings, wherein at least one of the radial bearings is an active magnetic bearing;
- an actively controlled axial support bearing comprising a magnetic bearing configured at an end of the shaft that, during normal spinning operations, acts in equilibrium opposition to an oppositely directed force from an actively controlled electrical coil;
- and
- wherein the electrical coil is configured to act on the shaft of the spinning rotor to controllably apply pulling or compressive forces on the spinning rotor.
A bearing system of a spinning rotor having a pot and a shaft of an open-end spinning device, comprising:
- radial bearings, wherein at least one of the radial bearings is an active magnetic bearing:
- an actively controlled axial support bearing comprising a magnetic bearing configured at an end of the shaft that, during normal spinning operations, acts in equilibrium opposition to an oppositely directed repulsive force from an actively controlled aerostatic bearing;
- and
- wherein the aerostatic bearing builds up an air cushion between the end of the shaft of the spinning rotor and the aerostatic bearing, and further comprising a mechanical starting element that is directed towards the end of the shaft of the spinning rotor, the aerostatic bearing comprising at least one opening through the mechanical starting element for directing air to build up the air cushion.
Dependencies are inferred from the claim text.