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    DEVICE FOR CONTROLLING A SPINDLE OF A GRINDING MACHINE, ASSOCIATED METHOD AND ASSOCIATED GRINDING MACHINE
    2.
    发明公开
    DEVICE FOR CONTROLLING A SPINDLE OF A GRINDING MACHINE, ASSOCIATED METHOD AND ASSOCIATED GRINDING MACHINE 审中-公开

    公开(公告)号：US20240139908A1

    公开(公告)日：2024-05-02

    申请号：US18487463

    申请日：2023-10-16

    申请人： SKF Magnetic Mechatronics

    发明人： Francis BIENAIME ,  Yannick Paul ,  Sylvain Palmeri ,  Gerald AUBÉ

    IPC分类号： B24B51/00 ,  B24B41/04 ,  F16C32/04

    CPC分类号： B24B51/00 ,  B24B41/044 ,  F16C32/0451

    摘要： A device (21) for controlling a spindle of a grinding machine (1) is disclosed. The spindle includes a rotor (5) supported by two radial magnetic bearings, one axial bearing, and a grinding wheel (6). The device includes a storage means (22) for storing control coefficients of the magnetic bearings. The device includes a means for determining a type of the grinding wheel and a type of the rolling bearing ring. A selection means (23) selects control coefficients associated with the determined types of grinding wheel and of rolling bearing ring from among the control coefficients stored in the storage means. The device also includes a means (23) for controlling the radial and axial magnetic bearings. Said means controlling the radial and axial (12) magnetic bearings on the basis of the control coefficients of the determined types of grinding wheel and of rolling bearing ring.

    SYSTEM FOR CONTROLLING AT LEAST ONE ACTIVE MAGNETIC BEARING EQUIPPING A ROTATING MACHINE COMPRISING A ROTOR AND A STATOR, AND CORRESPONDING METHOD
    4.
    发明申请
    SYSTEM FOR CONTROLLING AT LEAST ONE ACTIVE MAGNETIC BEARING EQUIPPING A ROTATING MACHINE COMPRISING A ROTOR AND A STATOR, AND CORRESPONDING METHOD 有权

    公开(公告)号：US20210270317A1

    公开(公告)日：2021-09-02

    申请号：US17171215

    申请日：2021-02-09

    申请人： SKF Magnetic Mechatronics

    发明人： Francis Bienaime

    IPC分类号： F16C32/04 ,  H03H17/02

    摘要： System for controlling at least one active magnetic bearing equipping a rotating machine comprising a rotor and a stator, at least one means for measuring the radial positions of the rotor as a function of the signal from at least one position sensor, and at least two control loops of the active magnetic bearing as a function of the radial positions of the rotor, each control loop of the magnetic bearing being provided with at least one synchronous filter as a function of the rotation speed, and an extended Kalman filter for determining the rotation speed of the rotor with respect to the stator receiving as input, from position sensors, measurements of radial position of the rotor and as a function of measurements of radial position of the rotor performed over a predetermined time at zero rotor rotation speed.

    MAGNETIC BEARING ASSEMBLY
    7.
    发明申请
    MAGNETIC BEARING ASSEMBLY 审中-公开

    公开(公告)号：US20190186537A1

    公开(公告)日：2019-06-20

    申请号：US16214217

    申请日：2018-12-10

    申请人： SKF Magnetic Mechatronics

    发明人： Luc Baudelocque

    IPC分类号： F16C32/04

    CPC分类号： F16C32/048 ,  F16C32/0461

    摘要： A radial magnetic bearing assembly having an unsymmetrical stator. The assembly comprises fewer or smaller electromagnets, and thus capacity, in the two lower quadrants below the rotor in use, in comparison to the electromagnets, and thus capacity, in the two upper quadrants above the rotor in use. This creates space in the two lower quadrants that can advantageously be used to move for example instrumentation and cooling from other places of the assembly to make the bearing assembly compacter, and also to be able to put instrumentation and cooling where it is best needed, close to the rotor.