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1. 发明授权

US4627288A Bearing unloading mechanism for disc clamping unit 失效
标题翻译：圆盘夹紧单元的轴承卸载机构
公开(公告)号：US4627288A
公开(公告)日：1986-12-09
申请号：US764413
申请日：1985-08-12
申请人： Nahum Guzik , John L. Guerini , Semyon Sherstinsky
发明人： Nahum Guzik , John L. Guerini , Semyon Sherstinsky
IPC分类号： G11B17/028
CPC分类号： G11B17/0287
摘要： A bearing unloading mechanism for a disc clamping unit utilized in rigid disc certifiers or testers comprises a hollow spindle (12) containing a pulling rod (20) which slides in the spindle. The upper end of the pulling rod carries a clamping element (26) for clamping a disc (D) to be tested or certified. There is a first compression spring (32) arranged between a flange (30) at the lower end of rod (20) and second compression springs (56) between stationary casing (18) and a moveable casing (48) which is attached to a pneumatic cylinder (40), solenoid, or any other linear actuator. When the actuator is energized, the moveable casing moves down, compressing the second springs until the moveable casing comes into contact with an abutment flange (58) of the spindle. At this point the device continues to move the rod connected to the clamp up to the unclamped position. Since the device is applying an equal downward force, as well as an upward force, there is no force applied to the internal components of the bearings.
摘要翻译：用于刚性盘认证机或测试机中的盘夹紧单元的轴承卸载机构包括一个中空轴（12），其包含在主轴中滑动的拉杆（20）。拉杆的上端承载用于夹紧待测试或认证的盘（D）的夹紧元件（26）。第一压缩弹簧（32）设置在杆（20）的下端处的凸缘（30）和固定壳体（18）与可移动壳体（48）之间的第二压缩弹簧（56）之间，第一压缩弹簧气动缸（40），螺线管或任何其他线性执行器。当致动器通电时，可移动壳体向下移动，压缩第二弹簧，直到可动壳体与主轴的邻接凸缘（58）接触。此时，设备继续将连接到夹具的杆移动到未夹紧位置。由于装置施加相等的向下的力以及向上的力，因此不会对轴承的内部部件施加力。

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