Bearing assembly for an open-end spinning machine
AssigneeW. Schlafhorst AG & Co.
InventorNorbert Coenen
Life of this patent
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Abstract
A bearing for the shaft of a spinning rotor of an open-end spinning machine, wherein the shaft is magnetically supported axially and radially without contact by two axially spaced-apart magnet pairs on the shaft and stator housing in dispositions rotationally symmetrical to the axis of the rotor. The magnet pairs have nonidentical magnet poles facing one another and an electromagnetic center position regulator is provided to maintain an axial center position.
Claims15
A bearing for a shaft of a spinning rotor of an open-end spinning machine, comprising;
- (a) two axially spaced-apart pairs of magnets, one magnet of each pair of magnets disposed on the shaft and the other magnet of each pair of magnets disposed on a stator housing of the open-end spinning machine, each magnet of each pair of magnets being disposed in respective dispositions rotationally symmetrical to the axis of the rotor shaft, said pair of magnets magnetically supporting the rotor shaft both axially and radially without contact therewith, the magnets of each pair of magnets having nonidentical magnet poles facing one another,
- (b) an electromagnetic center position regulator for maintaining an axial center position of the rotor shaft during operation of the open-end spinning
- (c) an axial interception bearing disposed at an end of the rotor shaft for engagement therewith in the event of an energy failure of the open-end spinning machine.
A bearing for a shaft of a spinning rotor of an open-end spinning machine, comprising:
- (a) two axially spaced-apart pairs of magnets, one magnet of each pair of magnets disposed on the shaft and the other magnet of each pair of magnets disposed on a stator housing of the open-end spinning machine, each magnet of each pair of magnets being disposed in respective dispositions rotationally symmetrical to the axis of the rotor shaft, said pair of magnets magnetically supporting the rotor shaft both axially and radially without contact therewith, the magnets of each pair of magnets having nonidentical magnet poles facing one another, and
- (b) an electromagnetic center position regulator for maintaining an axial center position of the rotor shaft during operation of the open-end spinning machine, including an electric circuit for controlling delivery of electrical energy to at least one coil disposed adjacent a said magnet in the event of an energy failure of the open-end spinning machine to induce a preferential axial movement of the spinning rotor.
A method for supporting a shaft of a spinning rotor of an open-end spinning machine, comprising the steps of:
- (a) supporting the rotor shaft both axially and radially with two axially spaced-apart pairs of magnets, one magnet of each pair of magnets disposed on the shaft and the other magnet of each pair of magnets disposed on a stator housing of the open-end spinning machine, each magnet of each pair of magnets being disposed in respective dispositions rotationally symmetrical to the axis of the rotor shaft;
- (b) maintaining with an electromagnetic center position regulator an axial center position of the rotor shaft during operation of the open-end spinning machine;
- and
- (c) urging the rotor shaft into engagement with an axial interception bearing disposed at an end of the rotor shaft during an energy failure of the open-end spinning machine.
Dependencies are inferred from the claim text.