BEARING DEVICE HAVING A SHAFT WHICH IS MOUNTED MAGNETICALLY SUCH THAT IT CAN ROTATE ABOUT AN AXIS WITH RESPECT TO A STATOR, AND HAVING A DAMPING APPARATUS

摘要

The invention relates to a bearing device (100) having a magnetic bearing (210) for mounting a shaft (101) and a damping device (200). The damping device (200) comprises a first disc-shaped damper part (201) that is part of the shaft (101), and a yoke-shaped second damper part (202) that comprises side parts (211) guiding the magnetic flow and means (212) for producing a magnetic field. The side parts (211) guiding the magnetic flow are disposed at a distance from one another to form an annular-cylindrical intermediate chamber in the axial direction relative to the axis (A). The first damper part (201) protrudes into said intermediate chamber in a radial fashion relative to the axis (A). The second damper part (202) completely surrounds the disc-shaped first damper part (201). The side parts (211) guiding the magnetic flow are provided on their sides facing the first damping part (201) with dentoid extensions that are rotationally symmetrical relative to the axis (A) for producing a non-homogenous magnetic field in the annular-cylindrical intermediate chamber in the radial direction relative to the axis (A).