Axial bearing and pole disk for an axial bearing
AssigneeMaschinenfabrik Rieter AG
InventorGernot Schaeffler
Life of this patent
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Abstract
An axial bearing for a spinning rotor of an open-end spinning machine includes a static bearing component having axially polarized permanent magnet rings delimited on both sides by ferromagnetic pole disks arranged in a bearing housing, the static bearing component interacting with a dynamic bearing component formed by ferromagnetic webs arranged on a rotor shaft of the spinning rotor. Each pole disk includes a disk ring, a central opening, a vertical axis, and a horizontal axis. The disk ring includes an area of reduced ferromagnetic material on an inner circumference thereof at the vertical axis as compared to a remaining inner circumferential area of the disk ring.
Claims17
An axial bearing for a spinning rotor of an open-end spinning machine, wherein the spinning rotor is supported free of axial thrust in a bearing interstice of a support disk bearing arrangement, the axial bearing comprising:
- a static bearing component comprising at least two axially polarized permanent magnet rings delimited on both sides by ferromagnetic pole disks, the magnetic rings and pole disks arranged in a bearing housing such that, in an installed state, identical poles are positioned opposite each other;
- the static bearing component configured for interacting during operation with a dynamic bearing component formed by ferromagnetic webs arranged on a rotor shaft of the spinning rotor at a distance from the pole disks;
- each pole disk comprising a disk ring and a central opening, each pole disk further comprising a vertical axis and a horizontal axis;
- the disk ring comprising an area of reduced ferromagnetic material on an inner circumference thereof at the vertical axis as compared to a remaining inner circumferential area of the disk ring;
- and
- wherein the area of reduced ferromagnetic material is defined by one or both of a chamfer formed in the disk ring or a non-ferromagnetic material added onto the disk ring.
A pole disk for an axial bearing for a spinning rotor of an open-end spinning machine, the pole disk comprising:
- a disk ring having a central opening, a vertical axis, and a horizontal axis;
- and
- an area of reduced ferromagnetic material on an inner circumference thereof at the vertical axis as compared to a remaining inner circumferential area of the disk ring;
- and
- wherein the area of reduced ferromagnetic material is defined by one or both of a chamfer formed in the disk ring or a non-ferromagnetic material added onto the disk ring.
A bearing housing of an axial bearing for a spinning rotor of an open-end spinning machine, comprising:
- at least two axially polarized permanent magnet rings delimited on both sides by ferromagnetic pole disks such that identical poles are positioned opposite each other;
- a static bearing component configured for interacting during operation with a dynamic bearing component formed by ferromagnetic webs arranged on a rotor shaft of the spinning rotor at a distance from the pole disks;
- each pole disk comprising a disk ring and a central opening, each pole disk further comprising a vertical axis and a horizontal axis;
- the disk ring comprising an area of reduced ferromagnetic material on an inner circumference thereof at the vertical axis as compared to a remaining inner circumferential area of the disk ring;
- and
- wherein the area of reduced ferromagnetic material is defined by one or both of a chamfer formed in the disk ring or a non-ferromagnetic material added onto the disk ring.
Dependencies are inferred from the claim text.