Magnetic bearing system
    34.
    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

    IPC分类号: H02K709

    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
    35.
    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

    IPC分类号: F16C32/04 F16C39/06

    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。

    Coaxial cable stripper
    36.
    发明授权
    Coaxial cable stripper 失效
    同轴电缆剥线钳

    公开(公告)号:US4945636A

    公开(公告)日:1990-08-07

    申请号:US295915

    申请日:1989-01-11

    申请人: Takeshi Takizawa

    发明人: Takeshi Takizawa

    IPC分类号: H02G1/12

    CPC分类号: H02G1/1224

    摘要: A coaxial cable stripper for removing a part of the covering layers at the end of a coaxial cable including a plurality of rotatable circular blades for cutting into the covering layers of a coaxial cable, a cable-holder which holds the cable therein and a spring which presses the circular blades against the coaxial cable held in the cable-holder so that pressure cutting of the covering layer can be accomplished by rolling the circular blades around the circumference of the coaxial cable.

    摘要翻译: 一种同轴电缆剥离器,用于在同轴电缆的端部移除一部分覆盖层,该同轴电缆包括多个可旋转的圆形刀片,用于切割成同轴电缆的覆盖层,将电缆固定在其中的电缆保持器以及弹簧, 将圆形刀片压靠在保持在电缆保持器中的同轴电缆,以便通过围绕同轴电缆的圆周滚动圆形刀片来实现覆盖层的压力切割。

    Preload measuring device for double row rolling bearing unit
    37.
    发明授权
    Preload measuring device for double row rolling bearing unit 有权
    双列滚动轴承单元预载测量装置

    公开(公告)号:US08864382B2

    公开(公告)日:2014-10-21

    申请号:US12282340

    申请日:2007-03-09

    摘要: A preload measuring device for a double row rolling bearing unit includes an outer bearing ring member having double rows of outer ring raceways on an inner circumferential surface, an inner bearing ring member having double rows of inner ring raceways on an outer circumferential surface, rolling elements rollably arranged between the outer ring raceways and the inner ring raceways in each of the rows such that contact angles given to the respective rows are opposite to one another, axial displacement measuring means for obtaining an axial relative displacement between the outer bearing ring member and the inner bearing ring member, inclination angle measuring means for obtaining an inclination angle between center axes of the outer bearing ring member and the inner bearing ring member, and preload calculating means for obtaining a preload applied to the rolling elements based on the inclination angle and the axial relative displacement.

    摘要翻译: 一种用于双列滚动轴承单元的预载测量装置包括:在内周面上具有双排外圈滚道的外轴承圈构件,在外周面上具有双列内圈滚道的内轴承环构件,滚动体 可滚动地布置在每个排中的外圈滚道和内圈滚道之间,使得给予相应行的接触角彼此相反;轴向位移测量装置,用于获得外轴承环构件和 内轴承环构件,用于获得外轴承环构件的中心轴线与内轴承环构件之间的倾斜角度的倾斜角度测量装置,以及用于基于倾斜角度获得施加到滚动元件的预载荷的预压计算装置, 轴向相对位移。

    PRELOAD MEASURING DEVICE FOR DOUBLE ROW ROLLING BEARING UNIT
    38.
    发明申请
    PRELOAD MEASURING DEVICE FOR DOUBLE ROW ROLLING BEARING UNIT 有权
    用于双列滚动轴承单元的前端测量装置

    公开(公告)号:US20090052825A1

    公开(公告)日:2009-02-26

    申请号:US12282340

    申请日:2007-03-09

    IPC分类号: G01L5/00

    摘要: A preload measuring device for a double row rolling bearing unit includes an outer bearing ring member having double rows of outer ring raceways on an inner circumferential surface, an inner bearing ring member having double rows of inner ring raceways on an outer circumferential surface, rolling elements rollably arranged between the outer ring raceways and the inner ring raceways in each of the rows such that contact angles given to the respective rows are opposite to one another, axial displacement measuring means for obtaining an axial relative displacement between the outer bearing ring member and the inner bearing ring member, inclination angle measuring means for obtaining an inclination angle between center axes of the outer bearing ring member and the inner bearing ring member, and preload calculating means for obtaining a preload applied to the rolling elements based on the inclination angle and the axial relative displacement.

    摘要翻译: 一种用于双列滚动轴承单元的预载测量装置包括:在内周面上具有双排外圈滚道的外轴承圈构件,在外周面上具有双列内圈滚道的内轴承环构件,滚动体 可滚动地布置在每个排中的外圈滚道和内圈滚道之间,使得给予相应行的接触角彼此相反;轴向位移测量装置,用于获得外轴承环构件和 内轴承环构件,用于获得外轴承环构件的中心轴线与内轴承环构件之间的倾斜角度的倾斜角度测量装置,以及用于基于倾斜角度获得施加到滚动元件的预载荷的预压计算装置, 轴向相对位移。