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    • 2. 发明授权
    • Microactuator for fine positioning in a disc drive
    • 用于在光盘驱动器中精细定位的微型致动器
    • US06335850B1
    • 2002-01-01
    • US09497688
    • 2000-02-04
    • John Charles DunfieldGunter Karl Heine
    • John Charles DunfieldGunter Karl Heine
    • G11B556
    • G11B5/5552
    • An actuator arm assembly is provided in a disc drive. The disc drive includes a disc with a surface for storing information and a first actuator for moving the actuator arm assembly relative to the surface of the disc. The actuator arm assembly includes an actuator arm coupled to the first actuator, a load beam coupled to the actuator arm, a suspension coupled to the load beam and an air bearing coupled to the suspension. A transducer is mounted on the air bearing and positioned to access the surface of the disc. A second actuator is coupled to the air bearing and the load beam and is controllable to move the air bearing relative to the surface of the disc and relative to the load beam.
    • 驱动器臂组件设置在盘驱动器中。 盘驱动器包括具有用于存储信息的表面的盘和用于相对于盘的表面移动致动器臂组件的第一致动器。 致动器臂组件包括联接到第一致动器的致动器臂,耦合到致动器臂的负载梁,耦合到负载梁的悬架和联接到悬架的空气轴承。 传感器安装在空气轴承上并定位成进入盘的表面。 第二致动器联接到空气轴承和负载梁并且可控制以相对于盘的表面和相对于负载梁移动空气轴承。
    • 6. 发明授权
    • Discrete fluid dynamic bearings
    • 离散流体动力轴承
    • US06322252B1
    • 2001-11-27
    • US09292098
    • 1999-04-14
    • Alan Lyndon GrantzGunter Karl Heine
    • Alan Lyndon GrantzGunter Karl Heine
    • F16C3206
    • F16C33/107F16C17/105
    • A discrete fluid dynamic bearing comprising a fluid dynamic bearing including a bearing cone mounted on a sleeve and defining in cooperation with a bearing seat having a surface facing an outer surface of the bearing cone across a fluid bearing gap, a first seal establishing a pressure gradient from a distal end of the sleeve toward the gap of the fluid dynamic bearing and a second seal on an opposite side of the fluid dynamic bearing from the first seal for establishing a positive, higher pressure toward the fluid bearing gap, the press established by the first and second seals maintain the fluid in the gap during relative rotation of the surfaces of the fluid dynamic bearing.
    • 一种离散流体动力轴承,包括流体动力轴承,该流体动力轴承包括安装在套筒上并与轴承座配合定义的轴承座,所述轴承座具有面向轴承圆锥体的外表面的表面横跨流体轴承间隙;第一密封件,其建立压力梯度 从套筒的远端朝向流体动力轴承的间隙,并且在与第一密封件相对的流体动力轴承的相对侧上形成第二密封件,用于朝向流体轴承间隙建立正的更高的压力,由 第一和第二密封件在流体动力轴承的表面的相对旋转期间将流体保持在间隙中。
    • 7. 发明授权
    • Spindle motor with fluid dynamic bearing having a journal bearing in
combination with a conical bearing
    • 具有流体动力轴承的主轴电机具有与锥形轴承组合的轴颈轴承
    • US6137650A
    • 2000-10-24
    • US981338
    • 1997-12-19
    • Gunter Karl HeineMohamed Mizanur RahmanRaquib Uddin KhanHans Leuthold
    • Gunter Karl HeineMohamed Mizanur RahmanRaquib Uddin KhanHans Leuthold
    • G11B5/48F16C17/10F16C17/26F16C33/10F16C33/74G11B19/20H02K7/08G11B17/08
    • G11B19/2009F16C17/102F16C33/107F16C33/745G11B19/2018G11B19/2036F16C2370/12
    • A hydrodynamic fluid bearing useful in a bearing cartridge which cartridge may be incorporated into a spindle motor or the like, where the bearing includes a shaft, a conical bearing supported on the shaft, and journal bearings located at least on one side and typically both above and below the conical bearing. A sleeve is mounted for rotation relative to the shaft and defines, in cooperation with the shaft, the gaps necessary for both the conical hydrodynamic bearing and the axial, journal bearings. At an end of the shaft, capillary seals are defined between the sleeve and the shaft so that fluid does not escape from the hydrodynamic bearing. The shaft itself includes a central hole, with bores communicating with both the conical bearing and the journal bearings to maintain appropriate pressure balances.In a further desirable feature, in some embodiments the diameter of one end of the shaft can be made greater than the diameter of the other end of the shaft. This allows for making the gaps between the shaft and the surrounding sleeve or journal to be greater where the diameter of the fixed shaft is greater, reducing the need for tight tolerances within at least part of the hydrodynamic bearing. Preferably the top end of the shaft (i.e. the end of the shaft adjacent the wider end of the conical bearing) has the journal bearing with greater diameter.
    • PCT No.PCT / US97 / 23925 Sec。 371 1997年12月19日第 102(e)日期1997年12月19日PCT 1997年12月19日PCT公布。 第WO98 / 48419号公报 日期1998年10月29日一种用于轴承筒的流体动力学流体轴承,其中可以将筒体并入到主轴电机等中,其中轴承包括轴,支撑在轴上的锥形轴承和至少位于一个上的轴颈轴承 并且通常在锥形轴承的上方和下方。 安装套筒相对于轴线旋转,并与轴配合限定锥形流体动力轴承和轴向轴颈轴承所需的间隙。 在轴的端部,在套筒和轴之间限定毛细管密封,使得流体不会从流体动力轴承逸出。 轴本身包括中心孔,孔与锥形轴承和轴颈轴承连通,以保持适当的压力平衡。 在另一个期望的特征中,在一些实施例中,轴的一端的直径可以制成大于轴的另一端的直径。 这允许在固定轴的直径更大的情况下使得轴和周围的套筒或轴颈之间的间隙更大,减少了至少部分流体动力轴承内的严格公差的需要。 优选地,轴的顶端(即,与锥形轴承的较宽端相邻的轴的端部)具有较大直径的轴颈轴承。