摘要:
The invention relates to a device (40) for magnetically axially supporting a rotor, which rotor comprises an axial bearing plate (32) connected to the rotor, in an axial magnetic bearing (54) having at least two independently controllable bearing branches (3, 4, 41), which each comprise at least one coil (5, 42), wherein magnetic flux isolation of the bearing branches (3, 4, 41) is provided, which flux isolation consists in that at least two of the bearing branches (3, 4) are arranged one after the other in the circumferential direction and have a single common pole (9), which has a circularly closed circumference, the centre point of which is arranged on the axis of rotation (35) of the rotor, wherein the coils (5) surround pole segments (11) connected to the common pole (9) and the common pole (9) is arranged either radially inside or radially outside of the pole segments (11), and/or in that the axial bearing plate (32) is divided into at least two coaxial plate parts (46, 61), which are associated with different bearing branches (3, 4, or 41) and which are separated by a non-magnetic material, for example in the form of a spacer ring (60), wherein the bearing branches (3, 4, or 41) associated with the plate parts (46, 61) are arranged coaxially partially in each other or overlapping.
摘要:
A bearing and drive system (1) comprising at least one electric engine (2) together with a control (50), wherein the bearing force of the respective bearing degree of freedom of the engine (2) can be actively influenced, also comprising an actively influenceable bearing (6, 7), which operates in a contact-free manner, together with a control (55). The control (56) of the engine (2) has two operating modes, of which one operating mode minimizes the effects of force of the electric engine (2) on the bearing degrees of freedom concerned, and the other operating mode actively generates a bearing force of the electric engine (2) in order to support the bearing. A detection and switching unit (52', 52'') for switching between the two operating modes when at least one operating parameter exceeds or drops below a predetermined limit value is provided, and a regulating or control unit (35) for the engine (2') and the bearing (6, 7) is connected to said detection and switching unit.
摘要:
Disclosed is a flywheel (13) comprising a rotating element (13') which rotates in relation to an axis of rotation and includes a radially outer flywheel mass member (24) that adjoins an inner shaft connection part (26) and tapers in the radial direction such that hollow projecting end pieces (24') are formed. The external face of the outer flywheel mass member (24) has a radial indentation (25) that extends all around the flywheel mass member.