-
公开(公告)号：US06249505B1
公开(公告)日：2001-06-19
申请号：US09686424
申请日：2000-10-11
申请人： Eiji Miyamoto , Harushige Osawa , Masanobu Chuta
发明人： Eiji Miyamoto , Harushige Osawa , Masanobu Chuta
IPC分类号： G11B1702
CPC分类号： F16F15/363 , G11B19/2009 , G11B19/2027
摘要： The present invention discloses a disk drive motor comprising a rotor having an annular space formed therein coaxially with the axis of rotation, and balancing member accommodated in the annular space and capable of changing its mass distribution circumferentially along the circle of the annular space. In case of any imbalanced rotation occurring during the rotation, the balancing member temporarily gather to a portion of the annular space where the mass imbalance is taking place. However, when the motor speed exceeds the value at which resonance takes place due to coincidence between the frequency of the vibration of the balancing member and the natural frequency of the motor, the balancing members move to a position symmetrical with the point of mass imbalance to eliminate the mass imbalance, thereby suppressing the run-out.
-
公开(公告)号：US5596235A
公开(公告)日：1997-01-21
申请号：US198116
申请日：1994-02-17
申请人： Asao Yazaki , Masanobu Chuta , Hiroshi Matsumoto , Junko Satake , Hiromi Iida , Koji Tomita
发明人： Asao Yazaki , Masanobu Chuta , Hiroshi Matsumoto , Junko Satake , Hiromi Iida , Koji Tomita
CPC分类号： H02K5/1737 , F16C33/765 , H02K5/124 , H02K21/22
摘要： A spindle motor comprises a stationary shaft, a rotor hub rotatably mounted by ball bearings to the stationary shaft, and annular sealing members disposed between the outer surface of the stationary shaft and the inner side of the rotor hub axially outwardly of the ball bearings. The sealing member is directly fitted onto the outer race of the corresponding ball bearing. The outer race of each ball bearing is high precision finished so that the sealing member is definitely coaxial with the stationary shaft regardless of the finishing accuracy on the inner side of the rotor hub. Accordingly, the radial distance between the inner side of the sealing member and the outer surface of the stationary shaft can be minimized with high precision offering an excellent labyrinth effect.
摘要翻译： 主轴电动机包括固定轴，通过球轴承可旋转地安装到固定轴的转子毂，以及设置在固定轴的外表面和转子毂的内侧之间的环形密封构件，其轴向向外滚动。 密封件直接安装在相应球轴承的外圈上。 每个滚珠轴承的外圈高精度精加工，使得密封构件绝对与固定轴同轴，而与转子毂的内侧上的精加工精度无关。 因此，密封构件的内侧和固定轴的外表面之间的径向距离可以以精度最小化，具有优异的迷宫效果。
-
公开(公告)号：US5821646A
公开(公告)日：1998-10-13
申请号：US674360
申请日：1996-07-01
申请人： Masanobu Chuta , Hiroshi Matsumoto , Junko Satake , Hiromi Iida , Koji Tomita
发明人： Masanobu Chuta , Hiroshi Matsumoto , Junko Satake , Hiromi Iida , Koji Tomita
CPC分类号： H02K5/1737 , F16C33/765 , H02K5/124 , H02K21/22
摘要： A spindle motor comprises a stationary shaft, a rotor hub rotatably mounted by ball bearings to the stationary shaft, and annular sealing members disposed between the outer surface of the stationary shaft and the inner side of the rotor hub axially outwardly of the ball bearings. The sealing member is directly fitted onto the outer race of the corresponding ball bearing. The outer race of each ball bearing is high precision finished so that the sealing member is definitely coaxial with the stationary shaft regardless of the finishing accuracy on the inner side of the rotor hub. Accordingly, the radial distance between the inner side of the sealing member and the outer surface of the stationary shaft can be minimized with high precision offering an excellent labyrinth effect.
摘要翻译： 主轴电动机包括固定轴，通过球轴承可旋转地安装到固定轴的转子毂，以及设置在固定轴的外表面和转子毂的内侧之间的环形密封构件，其轴向向外滚动。 密封件直接安装在相应球轴承的外圈上。 每个滚珠轴承的外圈高精度精加工，使得密封构件绝对与固定轴同轴，而与转子毂的内侧上的精加工精度无关。 因此，密封构件的内侧和固定轴的外表面之间的径向距离可以以精度最小化，具有优异的迷宫效果。
-
公开(公告)号：US5426548A
公开(公告)日：1995-06-20
申请号：US23369
申请日：1993-02-25
申请人： Yoshio Fujii , Masanobu Chuta , Kazuyuki Yasuda
发明人： Yoshio Fujii , Masanobu Chuta , Kazuyuki Yasuda
IPC分类号： G11B17/02 , G11B17/038 , G11B17/022
CPC分类号： G11B17/0287 , G11B17/02 , G11B17/038
摘要： A disk drive apparatus in which a hard disk is fitted on a disk-fitting outer peripheral portion of a rotor hub. A gap is defined on the outer periphery of the rotor hub such that the axial height of the gap decreases radially inward. An elastic ring member, which is appropriately tensed in the circumferential direction, fits in the gap so as to exert a contracting force which serves to clamp the hard disk between itself and a disk supporting surface. The hard disk can be securely and easily fixed to the rotor hub with uniform application of the clamping pressure over the entire circumference, even when the axial height of the whole disk drive apparatus is reduced.
摘要翻译： 一种盘式驱动装置，其中硬盘安装在转子轮毂的盘装外周部上。 间隙限定在转子毂的外周上，使得间隙的轴向高度径向向内减小。 在圆周方向适当地张紧的弹性环构件配合在间隙中，以产生用于将硬盘夹在其与盘支撑表面之间的收缩力。 即使当整个盘驱动装置的轴向高度减小时，硬盘也可以在整个圆周上均匀地施加夹紧压力而牢固且容易地固定到转子毂上。
-
公开(公告)号：US5138209A
公开(公告)日：1992-08-11
申请号：US651141
申请日：1991-02-06
CPC分类号： G11B25/043 , G11B19/2009 , H02K5/1737 , H02K5/225 , H02K2211/03
摘要： Disclosed is a spindle motor comprising: a housing, a hub member which is rotatable with respect to the housing and to which a recording member is attached, and a bearing arranged between the housing and the hub member and having an outer member which is rotatably attached thereto through the intermediation of a plurality of spherical members, the hub member being fixed to the above-mentioned outer member by press fitting or shrinkage fitting, and the inner periphery of the hub member being equipped with an annular recess in correspondence with a ball lodging grooved formed on the outer member.
摘要翻译： 公开了一种主轴电动机，包括：壳体，毂构件，其可相对于壳体旋转并且附接有记录构件;以及轴承，其布置在壳体和轮毂构件之间，并具有可旋转地附接的外部构件 通过多个球形构件的形成，轮毂构件通过压配合或收缩配合固定到上述外构件，并且轮毂构件的内周面配备有与球保持件对应的环形凹部 沟槽形成在外部构件上。
-
公开(公告)号：US06205110B1
公开(公告)日：2001-03-20
申请号：US09103727
申请日：1998-06-23
申请人： Eiji Miyamoto , Harushige Osawa , Masanobu Chuta
发明人： Eiji Miyamoto , Harushige Osawa , Masanobu Chuta
IPC分类号： G11B1920
CPC分类号： F16F15/363 , G11B19/2009 , G11B19/2027
摘要： The present invention discloses a disk drive motor comprising a rotor having an annular space formed therein coaxially with the axis of rotation, and balancing member accommodated in the annular space and capable of changing its mass distribution circumferentially along the circle of the annular space. In case of any imbalanced rotation occurring during the rotation, the balancing member temporarily gather to a portion of the annular space where the mass imbalance is taking place. However, when the motor speed exceeds the value at which resonance takes place due to coincidence between the frequency of the vibration of the balancing member and the natural frequency of the motor, the balancing members move to a position symmetrical with the point of mass imbalance to eliminate the mass imbalance, thereby suppressing the run-out.
摘要翻译： 本发明公开了一种磁盘驱动电动机，其包括转子，该转子具有与旋转轴线同轴形成的环形空间，以及容纳在环形空间中并且能够沿着环形空间的圆周沿周向改变其质量分布的平衡构件。 在旋转期间发生任何不平衡旋转的情况下，平衡构件临时收集到发生质量不平衡的环形空间的一部分。 然而，当电动机转速超过平衡构件的振动频率与电动机的固有频率之间的一致时发生共振的情况下，平衡构件移动到与质量不平衡对称的位置 消除质量不平衡，从而抑制耗尽。
-
公开(公告)号：US5689147A
公开(公告)日：1997-11-18
申请号：US383813
申请日：1995-02-06
申请人： Isao Kaneda , Masanobu Chuta , Tetsuya Tsuji
发明人： Isao Kaneda , Masanobu Chuta , Tetsuya Tsuji
摘要： A brushless motor comprising a stator core having a plurality of tooth portions disposed peripherally at intervals, coils wound in a required manner on a plurality of tooth portions, an annular rotor magnet disposed in opposition to the stator core and having N poles and S poles alternately disposed, and a position detecting sensor for detecting the rotating angular position of the rotor magnet. The stator core is formed by laminating an anisotropic steel sheet in which the easily magnetizable axis of the crystal is in a specific direction.
摘要翻译： 1.一种无刷电动机，其特征在于，具有定子铁心，该定子铁芯具有多个周向间隔地设置的齿部，以所需的方式卷绕在多个齿部上的环状转子磁体，与所述定子铁芯相对设置并且具有N极和S极的交替 以及用于检测转子磁体的旋转角位置的位置检测传感器。 定子芯通过层叠各向异性钢板而形成，其中易于磁化的晶体轴在特定方向上。
-
公开(公告)号：US5347189A
公开(公告)日：1994-09-13
申请号：US951661
申请日：1992-09-25
申请人： Masanobu Chuta , Tokumon Ogawa
发明人： Masanobu Chuta , Tokumon Ogawa
CPC分类号： H02K3/50 , F16C33/80 , H02K5/124 , H02K5/1737 , H02K5/225 , H02K21/22 , H02K2203/03 , H02K2211/03 , H02K29/06
摘要： A spindle motor comprises a stationary member, a hub for rotation relative to the stationary member, bearings provided between the stationary member and the hub, and a labyrinth seal provided outside one of the bearings. In particular, the labyrinth seal includes a plurality of labyrinth units. Each labyrinth unit is consisted mainly of a first member mounted to the stationary member and a second member mounted to the hub.
摘要翻译： 主轴电动机包括固定构件，相对于固定构件旋转的毂，设置在固定构件和轮毂之间的轴承，以及设置在其中一个轴承外的迷宫式密封件。 特别地，迷宫式密封件包括多个迷宫单元。 每个迷宫单元主要由安装到固定构件的第一构件和安装到毂的第二构件组成。
-
公开(公告)号：US5334895A
公开(公告)日：1994-08-02
申请号：US853121
申请日：1992-03-18
申请人： Yuji Morioka , Masanobu Chuta , Kuniyasu Iwazaki , Kihachiro Ohta
发明人： Yuji Morioka , Masanobu Chuta , Kuniyasu Iwazaki , Kihachiro Ohta
CPC分类号： F16J15/43 , F16C33/58 , G11B19/2009 , H02K1/187 , H02K11/01 , H02K5/124 , H02K5/1737 , H02K7/14 , F16C19/06
摘要： A spindle motor having a housing, a hub member rotatable relative to the housing, a bearing disposed between the housing and the hub member, a rotor magnet mounted on the hub member, and a stator disposed in a facing relationship with the rotor magnet. The hub member includes a supporting wall portion, which cooperates with the stator to constitute an air seal structure. A magnetic fluid seal is provided at a position outward of the bearing, and includes a conductive plate for grounding static electricity. The bearing is comprised of a radial ball bearing, which includes certain improvement.
摘要翻译： 一种主轴电动机，具有壳体，可相对于壳体旋转的毂构件，设置在壳体和轮毂构件之间的轴承，安装在轮毂构件上的转子磁体和以与转子磁体成对置关系的定子。 毂构件包括与定子协作以构成空气密封结构的支撑壁部分。 磁性流体密封件设置在轴承外侧的位置处，并且包括用于接地静电的导电板。 轴承由径向球轴承组成，其包括某些改进。
-
-
-
-
-
-
-
-
搜索结果
9 条记录 (耗时 0.012 秒)
