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1. 发明授权

US08780479B1 Disk drive executing jerk seeks to rotate pivot ball bearings relative to races 有权
标题翻译：执行磁力驱动的磁盘驱动器旨在相对于种族旋转枢轴滚珠轴承
公开(公告)号：US08780479B1
公开(公告)日：2014-07-15
申请号：US13925820
申请日：2013-06-24
申请人： Western Digital Technologies, Inc.
发明人： Daniel L. Helmick , Shane Walker , Orhan Beker , Charles D. Richards
IPC分类号： G11B5/55
CPC分类号： G11B5/5547
摘要： A disk drive is disclosed comprising a disk comprising a plurality of tracks, a head attached to a distal end of an actuator arm, and a voice coil motor (VCM) operable to rotate the actuator arm about a pivot bearing including a race and a plurality of ball bearings. The VCM is controlled to execute a first jerk seek in a first radial direction so that the ball bearings slip within the race by a first rotation angle. The VCM is controlled to execute a second jerk seek in the first radial direction so that the ball bearings slip within the race by a second rotation angle, wherein the second rotation angle adds to the first rotation angle in order to rotate the ball bearings relative to the race at a reference angle of the pivot bearing.
摘要翻译：公开了一种磁盘驱动器，包括包括多个磁道的磁盘，附接到致动器臂的远端的磁头和可操作以使致动器臂围绕包括座圈和多个的枢轴轴承旋转的音圈电机（VCM）的球轴承。控制VCM以在第一径向方向上执行第一加加速度搜索，使得滚珠轴承在座圈内滑动第一旋转角度。 VCM被控制以在第一径向方向上执行第二加加速度搜索，使得滚珠轴承在座圈内滑动第二旋转角度，其中第二旋转角度增加到第一旋转角度以使球轴承相对于在轴承的参考角度的比赛。

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