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91 条记录 (耗时 0.039 秒)

    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.

    Method of protecting lamination stacks of a component of an electric machine and component obtained by the method
    7.
    发明授权
    Method of protecting lamination stacks of a component of an electric machine and component obtained by the method 有权

    公开(公告)号：US10680484B2

    公开(公告)日：2020-06-09

    申请号：US15005273

    申请日：2016-01-25

    申请人： Yvon Baucé ,  Eduardo Carrasco ,  Erwan Salahun

    发明人： Yvon Baucé ,  Eduardo Carrasco ,  Erwan Salahun

    IPC分类号： H02K5/12 ,  H02K7/09 ,  H02K15/02 ,  H02K15/12 ,  H01F3/02 ,  C23C16/04 ,  H01F41/02

    摘要： A method of protecting ferromagnetic lamination stacks of a component of an electric machine, comprises the following steps: creating a component module by arranging a laminations stack of ferromagnetic sheets into a housing, (b) protecting locations of the component module where coating is unwanted, (c) inserting the component module into a hermetic chamber receiving an ionized gas, (d) polarizing the component module to submit a fixed electric potential to the component module, (e) depositing a thin layer of protective coating on the laminations stack of ferromagnetic sheets through a method of Plasma Enhanced Chemical Vapor Deposition (PECVD) at a temperature lower than 150° C., (f) monitoring the deposition homogeneity and deposition thickness of the thin layer of protective coating until desired thickness, and (g) rectifying the surface of the thin layer of protective coating to have a uniform protective layer.