System for controlling plural magnetic bearing devices from a remote location
    21.
    发明授权
    System for controlling plural magnetic bearing devices from a remote location 失效
    用于从远程位置控制多个磁性轴承装置的系统

    公开(公告)号:US06320289B1

    公开(公告)日:2001-11-20

    申请号:US09208428

    申请日:1998-12-10

    IPC分类号: H02K709

    摘要: A magnetic bearing device comprises a machine main body having position sensors for detecting the position of a rotary body and magnetic bearings for magnetically contactlessly supporting the rotary body, a controller for controlling the magnetic bearings based on the signals from the position sensors, a data processing computer installed at a location away from the controller, and modems for connecting the controller to the computer by communication lines.

    摘要翻译: 一种磁性轴承装置,包括具有用于检测旋转体的位置的位置传感器和用于磁性无接触地支撑旋转体的磁性轴承的机器主体,用于基于来自位置传感器的信号来控制磁性轴承的控制器,数据处理 安装在远离控制器的位置的计算机,以及用于通过通信线路将控制器连接到计算机的调制解调器。

    Magnetic bearing apparatus
    23.
    发明授权
    Magnetic bearing apparatus 失效
    磁性轴承装置

    公开(公告)号:US5739609A

    公开(公告)日:1998-04-14

    申请号:US827605

    申请日:1997-04-09

    摘要: A magnetic bearing apparatus comprises a pair of radial magnetic bearings arranged on both sides in the axial direction of an axial magnetic bearing. A pair of first touchdown bearings are arranged at both ends of a spindle. Annular slide bearings are mounted as second touchdown bearings for receiving the spindle on inner peripheral parts of electromagnets in the axial magnetic bearing. The radial internal clearance between the slide bearing and the spindle is larger than the radial internal clearance between the first touchdown bearings and the spindle and is smaller than the radial internal clearance between the radial magnetic bearings and the spindle. Even if a central part of the spindle is deflected at the time of emergency stop, both the first touchdown bearings and the slide bearings receive the spindle, so that the load on the first touchdown bearings can be reduced.

    摘要翻译: 磁轴承装置包括一对径向磁轴承,其设置在轴向磁轴承的轴向两侧。 在主轴的两端设有一对第一触地轴承。 环形滑动轴承安装为第二接触轴承,用于在轴向磁轴承中的电磁体的内周部分上接收主轴。 滑动轴承和主轴之间的径向内部间隙大于第一触地轴承和主轴之间的径向内部游隙,并且小于径向磁轴承和主轴之间的径向内部游隙。 即使主轴的中心部分在紧急停止时偏转,第一触地轴承和滑动轴承都接收主轴,从而可以减少第一触地轴承上的负载。

    Controller of magnetic bearing
    24.
    发明授权
    Controller of magnetic bearing 有权
    磁轴承控制器

    公开(公告)号:US06472787B1

    公开(公告)日:2002-10-29

    申请号:US09786316

    申请日:2001-03-02

    IPC分类号: F16C3204

    摘要: In a control unit for magnetic bearing, a sampling frequency of a DSP 4 is varied according to a number of rotation of a rolling element 1. Thus, a frequency band to be damped by a notch filter 42 as a digital filter is varied in correspondence with a resonance frequency associated with a natural frequency and a rotational vibration frequency, thereby to damp a resonance signal contained in a control signal. The occurrence of resonance is thus prevented through digital control.

    摘要翻译: 在用于磁轴承的控制单元中,DSP4的采样频率根据滚动元件1的旋转次数而变化。因此,作为数字滤波器的由陷波滤波器42阻尼的频带相应地变化 具有与固有频率和旋转振动频率相关联的共振频率,从而衰减包含在控制信号中的谐振信号。 因此通过数字控制来防止共振的发生。

    Controllable magnetic bearing apparatus
    25.
    发明授权
    Controllable magnetic bearing apparatus 有权
    可控磁轴承装置

    公开(公告)号:US6147425A

    公开(公告)日:2000-11-14

    申请号:US413486

    申请日:1999-10-06

    IPC分类号: F16C32/04 F16C39/06 H02K7/09

    摘要: In the magnetic bearing apparatus, there is provided a current sensor for detecting a current flowing in a motor. When the current increases over a reference value, a DSP enhances a support stiffness of the magnetic bearing, thereby securing a stable rotation of the rotor.

    摘要翻译: 在磁轴承装置中,设置有用于检测在电动机中流动的电流的电流传感器。 当电流比参考值增加时,DSP增强了磁轴承的支撑刚度,从而确保了转子的稳定旋转。

    CONTROL MAGNETIC BEARING DEVICE
    26.
    发明申请
    CONTROL MAGNETIC BEARING DEVICE 有权
    控制磁力轴承装置

    公开(公告)号:US20060082342A1

    公开(公告)日:2006-04-20

    申请号:US11296232

    申请日:2005-12-08

    IPC分类号: H02P27/04

    摘要: A control magnetic bearing device comprises a plurality of control magnetic bearings for contactlessly supporting a rotor, an electric motor for rotating the rotor, a magnetic bearing drive circuit for driving the magnetic bearings, an inverter for driving the electric motor, a main control circuit for controlling the magnetic bearing drive circuit and the inverter, and a power source unit connected to an external power source for supplying electric power to the magnetic bearing drive circuit, the inverter and the main control unit. The main control unit has software-programmable digital processing means for controlling the inverter in accordance with an input voltage value from the power source unit.

    摘要翻译: 控制磁轴承装置包括多个用于非接触地支撑转子的控制磁轴承,用于旋转转子的电动机,用于驱动磁轴承的磁轴承驱动电路,用于驱动电动机的逆变器,用于驱动电动机的主控制电路 控制磁轴承驱动电路和逆变器,以及连接到外部电源的电源单元,用于向磁轴承驱动电路,逆变器和主控制单元提供电力。 主控制单元具有用于根据来自电源单元的输入电压值来控制逆变器的软件可编程数字处理装置。

    Machine tool
    27.
    发明授权
    Machine tool 失效
    机床

    公开(公告)号:US5562528A

    公开(公告)日:1996-10-08

    申请号:US321872

    申请日:1994-10-14

    摘要: A machine tool comprises a spindle device carrying a tool element attached to the forward end of a rotor spindle drivingly rotatable as supported by a control-type magnetic bearing device, a working force calculating unit for calculating a working force acting on the tool element upon the tool element coming into contact with a workpiece based on exciting current of a magnetic bearing of the bearing device, and a discriminating unit for discerning whether the contact of the tool element with the workpiece is normal or abnormal based on variations in the working force.

    摘要翻译: 一种机床包括主轴装置,该主轴装置承载安装在由控制型磁轴承装置支撑的驱动下可转动的转子轴的前端的工具元件;工作力计算单元,用于计算作用在工具元件上的作用力 基于轴承装置的磁轴承的励磁电流与工件接触的工具元件,以及用于根据工作力的变化来辨别工具元件与工件的接触是正常还是异常的鉴别单元。

    Control magnetic bearing device
    28.
    发明授权
    Control magnetic bearing device 有权
    控制磁轴承装置

    公开(公告)号:US07053582B2

    公开(公告)日:2006-05-30

    申请号:US11296232

    申请日:2005-12-08

    IPC分类号: G05D23/275 H02K5/24 H02K7/09

    摘要: A control magnetic bearing device comprises a plurality of control magnetic bearings for contactlessly supporting a rotor, an electric motor for rotating the rotor, a magnetic bearing drive circuit for driving the magnetic bearings, an inverter for driving the electric motor, a main control circuit for controlling the magnetic bearing drive circuit and the inverter, and a power source unit connected to an external power source for supplying electric power to the magnetic bearing drive circuit, the inverter and the main control unit. The main control unit has software-programmable digital processing means for controlling the inverter in accordance with an input voltage value from the power source unit.

    摘要翻译: 控制磁轴承装置包括多个用于非接触地支撑转子的控制磁轴承,用于旋转转子的电动机,用于驱动磁轴承的磁轴承驱动电路,用于驱动电动机的逆变器,用于驱动电动机的主控制电路 控制磁轴承驱动电路和逆变器,以及连接到外部电源的电源单元,用于向磁轴承驱动电路,逆变器和主控制单元提供电力。 主控制单元具有用于根据来自电源单元的输入电压值来控制逆变器的软件可编程数字处理装置。

    Control magnetic bearing device
    29.
    发明申请
    Control magnetic bearing device 审中-公开
    控制磁轴承装置

    公开(公告)号:US20050174087A1

    公开(公告)日:2005-08-11

    申请号:US10774424

    申请日:2004-02-10

    IPC分类号: H02P5/34

    摘要: A control magnetic bearing device comprises a plurality of control magnetic bearings for contactlessly supporting a rotor, an electric motor for rotating the rotor, a magnetic bearing drive circuit for driving the magnetic bearings, an inverter for driving the electric motor, a main control circuit for controlling the magnetic bearing drive circuit and the inverter, and a power source unit connected to an external power source for supplying electric power to the magnetic bearing drive circuit, the inverter and the main control unit. The main control unit has software-programmable digital processing means for controlling the inverter in accordance with an input voltage value from the power source unit.

    摘要翻译: 控制磁轴承装置包括多个用于非接触地支撑转子的控制磁轴承,用于旋转转子的电动机,用于驱动磁轴承的磁轴承驱动电路,用于驱动电动机的逆变器,用于驱动电动机的主控制电路 控制磁轴承驱动电路和逆变器,以及连接到外部电源的电源单元,用于向磁轴承驱动电路,逆变器和主控制单元提供电力。 主控制单元具有用于根据来自电源单元的输入电压值来控制逆变器的软件可编程数字处理装置。

    Magnetic bearing device and method of starting the device
    30.
    发明授权
    Magnetic bearing device and method of starting the device 失效
    磁轴承装置及启动装置的方法

    公开(公告)号:US06348749B1

    公开(公告)日:2002-02-19

    申请号:US08843280

    申请日:1997-04-14

    申请人: Hirochika Ueyama

    发明人: Hirochika Ueyama

    IPC分类号: H02K709

    摘要: A magnetic bearing device comprising a magnetic bearing main body having at least electromagnets for magnetically levitating a rotary body and position sensors for detecting the position of the rotary body, and a controller connected to the main body by a cable for controlling the electromagnets based on output signals of the position sensors. The magnetic bearing main body is provided with memory means having stored therein characteristics of the rotary body and the electromagnets.

    摘要翻译: 一种磁性轴承装置,包括:磁性轴承主体,其至少具有用于磁性浮动旋转体的电磁体和用于检测旋转体的位置的位置传感器;以及控制器,其通过用于基于输出控制电磁体的电缆连接到主体 位置传感器的信号。 磁性轴承主体设置有存储有旋转体和电磁体的特性的存储装置。