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64 条记录 (耗时 0.031 秒)

    Magnetic bearing system
    4.
    发明授权
    Magnetic bearing system 失效
    磁轴承系统

    公开(公告)号：US06259179B1

    公开(公告)日：2001-07-10

    申请号：US09440115

    申请日：1999-11-15

    申请人： Hiromasa Fukuyama ,  Takeshi Takizawa

    发明人： Hiromasa Fukuyama ,  Takeshi Takizawa

    IPC分类号： H02K709

    CPC分类号： F16C32/0451 ,  F16C32/0465 ,  F16C32/0489

    摘要： A magnetic bearing system includes a rotor shaft 1, stationary electromagnetic pole, a radial displacement sensor 5 for detecting the position of the rotor shaft 1 with respect to the electromagnetic polarity, and a control circuit 220 which supplies a control current in accordance with an output from the radial displacement sensor 5. A permanent magnet 20 is disposed in the magnetic bearing so as to constitute a portion of a magnetic member 10 which forms a magnetic circuit between the rotor shaft 1 and the electromagnetic pole. The position where a balance exists between an attraction force developed in the permanent magnet 20 and static force, which acts on the rotor shaft 1 when no load is imposed on the rotor shaft 1, is set as a target position for the rotor shaft 1.

    摘要翻译： 磁轴承系统包括转子轴1，固定电磁极，用于检测转子轴1相对于电磁极性的位置的径向位移传感器5以及根据输出提供控制电流的控制电路220 永磁体20设置在磁性轴承中，以构成在转子轴1和电磁极之间形成磁路的磁性部件10的一部分。 作为转子轴1的目标位置，在永磁体20中产生的吸引力与作用在转子轴1上的静力之间产生平衡的位置被设定为转子轴1的目标位置。

    Magnetic bearing
    5.
    发明授权
    Magnetic bearing 失效
    磁轴承

    公开(公告)号：US6121704A

    公开(公告)日：2000-09-19

    申请号：US124760

    申请日：1998-07-29

    申请人： Hiromasa Fukuyama ,  Takeshi Takizawa

    发明人： Hiromasa Fukuyama ,  Takeshi Takizawa

    IPC分类号： F16C32/04 ,  F16C39/06

    CPC分类号： F16C32/0465 ,  F16C32/0459 ,  F16C32/0489

    摘要： There is disclosed a magnetic bearing which is an improvement over conventional radial magnetic bearings, and has a very small bearing loss. At least three U-shaped laminates 10 of electromagnetic steel sheets are circumferentially arranged around a rotation shaft 1, and are fixedly mounted on a housing 100. Exciting coils 31 and 32 are wound on each electromagnetic steel sheet laminate 10, and permanent magnets 20 and 21 are provided in the laminate 10. Rotor cores 2, each comprising a laminate of I-shaped electromagnetic steel sheets stacked together in the circumferential direction, are mounted on the rotation shaft 1 in such a manner that each rotor core 2 is opposed to magnetic pole surfaces of the electromagnetic steel sheet laminates 10. In accordance with a signal from position sensors 5 which detect the radial position of the rotation shaft 1, control current is caused to flow through the exciting coils 31 and 32 to thereby control the position of the rotation shaft 1. Thus, merely by causing the control current to flow through the exciting coils 31 and 32 when this is required, the control of the rotation shaft 1 can be achieved, and with this method, the energy consumption can be much reduced.

    摘要翻译： 公开了一种磁性轴承，其是对常规径向磁轴承的改进，并且具有非常小的轴承损耗。 电磁钢板的至少三个U形层叠体10围绕旋转轴1周向地布置，并且固定地安装在壳体100上。激磁线圈31和32缠绕在每个电磁钢板层压体10上，并且永磁体20和 21设置在层叠体10中。转子芯2，其各自包括沿圆周方向堆叠在一起的I形电磁钢板的层叠体，以使每个转子芯2与磁性体相对的方式安装在旋转轴1上 电磁钢板层叠体10的极面。根据检测旋转轴1的径向位置的位置传感器5的信号，使控制电流流过励磁线圈31,32，由此控制 因此，仅当需要控制电流才能流过励磁线圈31和32时，旋转轴1 可以实现，并且通过该方法可以大大减少能量消耗。

    Magnetically controlled bearing unit
    7.
    发明授权
    Magnetically controlled bearing unit 失效
    磁控轴承单元

    公开(公告)号：US5142177A

    公开(公告)日：1992-08-25

    申请号：US339709

    申请日：1989-04-18

    申请人： Toshiro Higuchi ,  Takeshi Sawamoto ,  Hiromasa Fukuyama ,  Takeshi Takizawa

    发明人： Toshiro Higuchi ,  Takeshi Sawamoto ,  Hiromasa Fukuyama ,  Takeshi Takizawa

    IPC分类号： F16C25/08 ,  F16C35/077 ,  F16C39/06

    CPC分类号： F16C32/0444 ,  F16C27/00 ,  F16C32/0474

    摘要： A bearing unit comprising a rotating body, a rotating shaft and a bearing, wherein there is provided a construction with a plurality of electromagnetic poles is arranged, together with a plurality of sensors for detecting the run-out of the rotating shaft, and also comprises a control circuit for controlling the intensity of a magnetic force according to a detection output of these sensors, thereby controlling the bearing unit so that vibration and run-out of the rotating body due to inbalance thereof are effectively suppressed while making the unit to revolve around the principle axis of shape.

    摘要翻译： 一种包括旋转体，旋转轴和轴承的轴承单元，其中提供具有多个电磁极的结构以及用于检测旋转轴的跳动的多个传感器，并且还包括 根据这些传感器的检测输出来控制磁力强度的控制电路，由此控制轴承单元，从而在使单元旋转的同时有效地抑制由于其不平衡而导致的旋转体的振动和跳动 主轴形状。