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43 条记录 (耗时 0.018 秒)

    Spindle motor
    22.
    发明授权
    Spindle motor 失效
    主轴电机

    公开(公告)号：US06756715B2

    公开(公告)日：2004-06-29

    申请号：US10360000

    申请日：2003-02-06

    申请人： Jun Hirose ,  Katsutoshi Nii ,  Tadayoshi Yano ,  Toshikazu Takehana ,  Hidekazu Tokushima

    发明人： Jun Hirose ,  Katsutoshi Nii ,  Tadayoshi Yano ,  Toshikazu Takehana ,  Hidekazu Tokushima

    IPC分类号： H02K512

    CPC分类号： F16C17/028 ,  F16C17/107 ,  F16C17/26 ,  F16C2370/12 ,  G11B19/2009 ,  H02K5/1675

    摘要： A spindle motor comprises a housing 10 including a through hole with a pair of apertures, one of the apertures being closed by a thrust plate 70 and the other aperture being open; a bearing 60 accommodated in the housing 90; a rotating shaft 30 inserted into the bearing 60; a displacement restraining structure for restraining movement of the rotating shaft 30 toward the open aperture by engaging the rotation shaft 30 with the bearing 60; a rotating member secured to the rotating shaft; and a motor generating electromagnetic function for rotating the rotating member. The through hole of the housing 90 includes a large diameter portion 92A at the thrust plate 70 side and a small diameter portion 92B at the open aperture side, and a stepped portion 93 is formed at a transition portion between the large diameter portion 92A and the small diameter portion 92B. At least a portion of the bearing 60 is located at the large diameter portion 92A side of the housing 90, and engages with the stepped portion 93 of the housing 90.

    摘要翻译： 主轴电动机包括壳体10，壳体10包括具有一对孔的通孔，其中一个孔由止推板70封闭，另一个孔打开; 容纳在壳体90中的轴承60; 插入到轴承60中的旋转轴30; 用于通过使旋转轴30与轴承60接合来限制旋转轴30朝向开口的运动的位移限制结构; 固定在旋转轴上的旋转构件; 以及用于旋转旋转构件的产生电磁功能的电动机。 壳体90的通孔包括在推力板70侧的大直径部分92A和在开口侧的小直径部分92B，并且台阶部分93形成在大直径部分92A和 小径部92B。 轴承60的至少一部分位于壳体90的大直径部分92A侧，并与壳体90的阶梯部分93接合。

    Bearing apparatus
    25.
    再颁专利
    Bearing apparatus 失效
    轴承装置

    公开(公告)号：USRE35718E

    公开(公告)日：1998-01-27

    申请号：US528059

    申请日：1995-09-14

    申请人： Katsutoshi Nii ,  Kazuhiko Kawaike ,  Hiroo Hiroyama ,  Satoshi Uno

    发明人： Katsutoshi Nii ,  Kazuhiko Kawaike ,  Hiroo Hiroyama ,  Satoshi Uno

    IPC分类号： F16C33/10 ,  F16C33/82 ,  F16C32/06

    CPC分类号： F16C33/10 ,  F16C33/1035 ,  F16C33/746

    摘要： A bearing apparatus comprises a housing formed of a non-magnetizable material and having a bottom portion, a fluid lubricating type radial bearing device provided coaxial with the housing and having a magnetic fluid sealing section and a radial bearing section, a thrust bearing device provided at the bottom portion of the housing, and a rotating shaft of a permeable material rotatable supported by the radial bearing device and thr thrust bearing device to extend through the radial bearing device. The magnetic fluid sealing section is disposed on the opening side of the housing with a predetermined spacing away from the radial bearing section whereby a space is provided between the magnetic fluid sealing section and a liquid surface of fluid lubricant filled in the radial bearing section.

    摘要翻译： 轴承装置包括由不可磁化材料形成并具有底部的壳体，与壳体同轴设置并具有磁性流体密封部分和径向轴承部分的流体润滑型径向轴承装置，其中设置有推力轴承装置 壳体的底部以及由径向轴承装置和推力轴承装置可旋转地支撑的可渗透材料的旋转轴，以延伸穿过径向轴承装置。 磁性流体密封部分以距离径向轴承部分预定间隔的方式设置在壳体的开口侧上，从而在磁性流体密封部分和填充在径向支承部分中的流体润滑剂的液体表面之间设置空间。

    Assembly method of motor using magnetic lubrication fluid
    27.
    发明授权
    Assembly method of motor using magnetic lubrication fluid 失效
    使用磁性润滑液的电机组装方法

    公开(公告)号：US06574186B2

    公开(公告)日：2003-06-03

    申请号：US09725875

    申请日：2000-11-30

    申请人： Katsutoshi Nii ,  Toshikazu Takehana ,  Motohiro Miyasaka

    发明人： Katsutoshi Nii ,  Toshikazu Takehana ,  Motohiro Miyasaka

    IPC分类号： G11B0552

    CPC分类号： F16C33/107 ,  F16C17/026 ,  F16C17/045 ,  F16C2370/12 ,  G11B19/2009 ,  H02K15/14

    摘要： A conventional plain bearing, in which dynamic pressure is generated by means of lubricating oil, has been assembled in such a way that the whole bearing device is assembled and then the lubricating oil is poured in the interior. As a result, residual air bubbles are produced to cause lowering of the dynamic pressure. The present invention uses magnetic fluid as lubricating oil, and adopts, for enclosing the fluid, a method in which at the time of assembling a spindle motor, a permanent magnet is used, magnetic fluid of a specified amount is previously held in a bearing unit by the magnetic attraction force, and after the insertion of a shaft, the magnetic fluid is supplied into a narrow space of a bearing part by a capillary attraction.

    摘要翻译： 通过润滑油产生动态压力的常规滑动轴承已经被组装成使得整个轴承装置被组装，然后润滑油被倒入内部。 结果，产生残留的气泡，导致动压降低。 本发明使用磁性流体作为润滑油，并且采用包封流体的方法，其中在组装主轴电动机时使用永久磁铁时，预先将具有规定量的磁性流体保持在轴承单元中 通过磁吸引力，并且在插入轴之后，通过毛细吸引力将磁性流体供应到轴承部分的狭窄空间中。

    Disk apparatus and motor therefor
    28.
    发明授权
    Disk apparatus and motor therefor 失效
    磁盘设备和电机

    公开(公告)号：US06256288B1

    公开(公告)日：2001-07-03

    申请号：US09017225

    申请日：1998-02-02

    申请人： Yoshiaki Yamauchi ,  Takashi Kouno ,  Shinobu Yoshida ,  Katsutoshi Nii ,  Noriyuki Kumasaka ,  Ikuo Nishida ,  Kyuichiro Nagai

    发明人： Yoshiaki Yamauchi ,  Takashi Kouno ,  Shinobu Yoshida ,  Katsutoshi Nii ,  Noriyuki Kumasaka ,  Ikuo Nishida ,  Kyuichiro Nagai

    IPC分类号： G11B1900

    CPC分类号： G11B33/08 ,  G11B19/2009

    摘要： The present invention provides a disk apparatus and a motor therefor that require low power consumption and reduce errors during recording or reproduction by damping vibration, preventing the motor from falling toward a head. In a disk apparatus comprising a motor and a head, the motor has a rotating portion and a fixed portion, the rotating portion of the motor has a device for holding a disk, the fixed portion of the motor has a bearing section and a stator section mounted in the disk apparatus via damping members, and the damping members are provided in such a way that one side of these members which is closer to a line joining the motor with the head has a higher rigidity than the other side.

    摘要翻译： 本发明提供一种磁盘装置及其电动机，其需要低功率消耗，并且通过阻尼振动来减少记录或再现期间的误差，防止电机向头部落下。 在包括马达和头部的盘装置中，马达具有旋转部分和固定部分，马达的旋转部分具有用于保持盘的装置，马达的固定部分具有轴承部分和定子部分 通过阻尼构件安装在盘装置中，并且阻尼构件设置成使得这些构件的更靠近马达与头部的线的一侧具有比另一侧更高的刚性。

    Rotary body bearing apparatus, motor and polygon mirror motor
    29.
    发明授权
    Rotary body bearing apparatus, motor and polygon mirror motor 失效
    旋转轴承装置，电机和多面镜电机

    公开(公告)号：US5541462A

    公开(公告)日：1996-07-30

    申请号：US233757

    申请日：1994-04-26

    申请人： Katsutoshi Nii ,  Ichiro Hashimoto ,  Takeshi Nakajima ,  Sueo Akashi

    发明人： Katsutoshi Nii ,  Ichiro Hashimoto ,  Takeshi Nakajima ,  Sueo Akashi

    IPC分类号： F16C17/02 ,  F16C33/10 ,  F16C33/74 ,  F16J15/43 ,  H02K5/16 ,  H02K7/08 ,  F16C32/06 ,  H02K7/09

    CPC分类号： F16C33/1035 ,  F16C17/10 ,  F16C33/746 ,  H02K5/1675

    摘要： A rotary body bearing apparatus has a bearing supporting member, a radial bearing member, a bearing chamber formed in the bearing supporting member for holding the radial bearing member, a rotative shaft supported rotatively by the radial bearing member, and lubricating oil filling a bearing clearance between the rotative shaft and the radial bearing member. An air bubble restraint means restrains the occurrence of air bubbles generated in the lubricating oil by the rotation of the rotative shaft. Even when the rotative shaft rotates at the high speed of rotation, by the provision of the air bubble occurrence restraint means, the occurrence of air bubbles generated in the lubricating oil can be restrained, high accuracy rotation can be maintained and a rotation number fluctuation of the rotary body can be reduced.

    摘要翻译： 旋转体轴承装置具有轴承支撑构件，径向轴承构件，形成在用于保持径向轴承构件的轴承支撑构件中的轴承室，由径向轴承构件旋转地支撑的旋转轴和填充轴承间隙的润滑油 在旋转轴和径向轴承构件之间。 气泡限制装置通过旋转轴的旋转来限制在润滑油中产生的气泡的发生。 即使当旋转轴以高速旋转时，通过设置气泡发生抑制装置，可以抑制在润滑油中产生的气泡的发生，可以保持高精度的旋转和旋转数的波动 可以减小旋转体。

    Motor with a bearing lubricated by magnetic fluid
    30.
    发明授权
    Motor with a bearing lubricated by magnetic fluid 失效
    带有磁性液体润滑的轴承的电机

    公开(公告)号：US5469008A

    公开(公告)日：1995-11-21

    申请号：US165451

    申请日：1993-12-13

    申请人： Takeshi Nakajima ,  Ichiro Hashimoto ,  Tomoyuki Saitou ,  Fusanori Ohira ,  Sueo Akashi ,  Nobukatu Sone ,  Katsutoshi Nii

    发明人： Takeshi Nakajima ,  Ichiro Hashimoto ,  Tomoyuki Saitou ,  Fusanori Ohira ,  Sueo Akashi ,  Nobukatu Sone ,  Katsutoshi Nii

    IPC分类号： H02K5/10 ,  F16C33/10 ,  F16C39/06 ,  G02B26/12 ,  G06K7/10 ,  G11B7/135 ,  H02K5/124 ,  H02K5/167 ,  H02K7/09 ,  H02K7/14

    CPC分类号： H02K7/09 ,  F16C33/1035 ,  F16C39/063 ,  G02B26/121 ,  G06K7/10851 ,  G11B7/1362 ,  H02K5/124 ,  G06K2207/1016

    摘要： A motor has a stator with a base part and a hollow projection as well as a rotor with a shaft which extends into the hollow projection. A radial bearing is mounted between the shaft and the hollow projection. There may be a further radial bearing in the base part of the stator. The radial bearing, lubricated by magnetic fluid, is sealed between the shaft and the projection by a magnetic seal at the end of the hollow projection remote from the base part. The rotor has an annular part extending around the hollow projection, which supports permanent magnets forming an armature. Those permanent magnets interact with drive coils on the stator to cause rotation of the rotor about the axis of the shaft. There is also a magnetic thrust bearing between the annular part of the rotor and the projection of the stator. This magnetic thrust bearing is axially displaced relative to the magnetic seal towards the base part of the stator, to counteract the effect of the magnetic thrust bearing on the magnetic seal.

    摘要翻译： 电动机具有带有基部和中空突起的定子以及具有延伸到中空突起中的轴的转子。 径向轴承安装在轴和中空突起之间。 在定子的基部可以有另外的径向轴承。 由磁性流体润滑的径向轴承通过远离基部的中空突起的端部处的磁性密封件密封在轴和突起之间。 转子具有围绕中空突起延伸的环形部分，其支撑形成电枢的永磁体。 这些永磁体与定子上的驱动线圈相互作用，以使转子围绕轴的轴线旋转。 在转子的环形部分和定子的突起之间还有一个磁力推力轴承。 该磁性推力轴承相对于朝向定子的基部的磁性密封件轴向移位，以抵消磁性推力轴承对磁性密封件的影响。