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公开(公告)号：US5278711A
公开(公告)日：1994-01-11
申请号：US963785
申请日：1992-10-20
IPC分类号： G11B21/21 , G11B5/60 , G11B15/62 , G11B17/32 , G11B23/50 , G11B25/04 , G11B33/12 , G11B33/14 , H02J13/00
CPC分类号： G11B5/6005 , G11B15/62 , G11B23/505 , G11B25/043 , G11B33/148 , H02J13/0055 , G11B33/1406
摘要： A rotating magnetic storage device is shown wherein the transducer and media are separated during operation by a thin film of low viscosity liquid lubricant that is recirculated from a reservoir within the head-media enclosure. Lubricant recirculation can be effected by capillary action using a wick, mechanical pumping and metering or distillation techniques. As compared to devices using air bearing separation, the transducer carrying slider has very small bearing surfaces which may be in the form of narrow rails or small depending foot elements. This enables fly heights of 2 microinches using a film of one micron thickness.
摘要翻译： 示出了旋转磁存储装置，其中换能器和介质在操作期间被从头部介质外壳中的储存器再循环的低粘度液体润滑剂的薄膜分离。 润滑剂再循环可以通过使用芯，机械泵送和计量或蒸馏技术的毛细管作用来实现。 与使用空气轴承分离的装置相比，传感器承载滑块具有非常小的轴承表面，其可以是窄轨道或小的依赖性脚部元件的形式。 这使得使用1微米厚度的膜可以实现2微英寸的飞行高度。
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公开(公告)号：US5574604A
公开(公告)日：1996-11-12
申请号：US416938
申请日：1995-04-04
申请人： Lowell J. Berg , Zine-Eddine Boutaghou , Thomas S. Larson , Dallas W. Meyer , Jay M. Mosbrucker , Jerry L. Neubauer , Hal H. Ottesen
发明人： Lowell J. Berg , Zine-Eddine Boutaghou , Thomas S. Larson , Dallas W. Meyer , Jay M. Mosbrucker , Jerry L. Neubauer , Hal H. Ottesen
CPC分类号： G11B5/54
摘要： A load/unload device to remove the slider from the proximity of the magnetic recording surface of a disk in a disk drive whenever the disk is to be stopped. The load/unload device is a ramp-like wedge which extends generally radially from the center of the magnetic disk and to the magnetic recording surface of the magnetic disk. When the slider is moved toward the center of the disk by an actuator mechanism, the end of the load arm supporting the slider, referred to as a tang, will engage the inclined plane of the wedge and lift the slider from the surface of the magnetic disk as the slider is translated closer to the center of the disk. Once the slider has been removed from close proximity of the disk, the tang may engage a trough-like surface on the structure supporting the wedge and will effectively detent the position of the slider through the forces exerted on the tang by the load beam of the actuator. Thus the disk will be protected from undesirable and damaging impacts of the slider against the magnetic recording surface of the disk thereby prolonging disk utility.
摘要翻译： 每当磁盘停止时，装载/卸载装置从磁盘驱动器中磁盘的磁记录表面的附近移除滑块。 装载/卸载装置是从磁盘的中心大致径向延伸到磁盘的磁记录表面的斜坡形楔形物。 当滑块通过致动器机构朝向盘的中心移动时，支撑滑块的负载臂的端部（被称为柄脚）将接合楔形物的倾斜平面并且从磁体的表面提起滑块 磁盘作为滑块更靠近磁盘的中心。 一旦滑块从盘的紧密附近被移除，则柄脚可以接合支撑楔的结构上的槽形表面，并且将有效地通过施加在柄脚上的作用力来使滑块的位置通过 执行器。 因此，该盘将被保护免受滑块抵靠磁盘的磁记录表面的不利影响，从而延长磁盘的使用效率。
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公开(公告)号：US5557183A
公开(公告)日：1996-09-17
申请号：US391313
申请日：1995-02-17
CPC分类号： G11B19/20 , G11B19/00 , G11B19/06 , G11B20/1816
摘要： Disclosed is a disk drive having a spindle motor, a disk that is rotated by the spindle motor, and a movable actuator arm that carries a read/write head. The head physically engages a parked, or home, position at the Inner Diameter (ID) of the disk when the spindle motor is not energized and the disk is stationary. The electrical energization that must be applied to the spindle motor in order to breakaway the head from the disk (i.e., the breakaway current), and the energization that is necessary to cause the motor to achieve a stable spinning state (i.e., the spin current) are monitored. Possible future failure of the disk drive is predicted as a function of any changes in these two electrical parameters, as these parameters may change over a period of time; i.e., may change over a number of disk drive stop/start events.
摘要翻译： 公开了一种具有主轴电动机，由主轴电动机旋转的盘和携带读/写头的可动致动器臂的盘驱动器。 当主轴电机没有通电并且磁盘静止时，磁头在盘的内径（ID）处物理地接合停放或原位置。 必须施加到主轴电机以将磁头与磁盘分离（即分离电流）的电能以及使电动机达到稳定的旋转状态所必需的通电（即，自旋电流 ）被监视。 由于这些参数可能会在一段时间内发生变化，因此可预测磁盘驱动器的未来故障可能是这两个电气参数中任何变化的函数。 即可以改变多个磁盘驱动器停止/启动事件。
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公开(公告)号：US5530602A
公开(公告)日：1996-06-25
申请号：US84673
申请日：1993-06-29
摘要： A starting sequence is provided for a rotating disk data storage device by providing a low level sensing current to the spindle motor which is able to initiate rotation of the disk spindle assembly when, absent stiction between head and confronting disk surface, it is only necessary to overcome disk assembly inertia and head drag. A sensing device is provided to sense a back electromotive force (EMF) in the spindle motor windings which indicates the start of disk rotation when any stiction condition has been terminated. A sequence of alternating current pulse bursts are applied to the actuator motor to impart a dithering action to the heads which induces axial vibration of the disks to break the stiction between the heads and confronting disk surfaces. The initial burst is of low amplitude pulses and each succeeding burst is of progressively greater amplitude and the pulses of each burst are of constant or progressively varying frequency to afford some consecutive pulses approaching the resonant frequency of the disk modes of vibration to enhance the stiction breaking force. The sensing of a back EMF (indicating disk rotation and the termination of any stuck head condition) is used to terminate the start sequence and switch the spindle and actuator motors to the normal operational control of the drive.
摘要翻译： 通过向主轴电机提供低电平感测电流，为旋转磁盘数据存储装置提供启动顺序，主轴电机能够在不存在磁头和面对磁盘表面之间的位置时启动磁盘主轴组件的旋转，因此只需要 克服磁盘组件惯性和磁头阻力。 提供感测装置以感测主轴电动机绕组中的反电动势（EMF），其指示当任何静止状态终止时盘旋转的开始。 将交替脉冲脉冲序列施加到致动器电动机，以向磁头施加抖动作用，这引起磁盘的轴向振动，以破坏磁头和面对磁盘表面之间的粘结。 初始脉冲串是低幅度脉冲，并且每个后续脉冲串具有逐渐更大的幅度，并且每个脉冲串的脉冲是恒定的或逐渐变化的频率，以提供接近磁盘振动模式的谐振频率的一些连续脉冲，以增强静音破坏 力。 使用反EMF（指示盘旋转和任何卡头状态的终止）的感测来终止启动顺序，并将主轴和执行器电机切换到驱动器的正常操作控制。
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