公开(公告)号：US6024687A

公开(公告)日：2000-02-15

申请号：US74478

申请日：1998-05-06

Applicant: David Wai-Wing Cheng

Inventor： David Wai-Wing Cheng

IPC: B04B9/12 ,  B04B5/02 ,  B04B7/06 ,  B04B9/08 ,  F16D43/18 ,  B04B9/00

CPC classification number: F16D43/18 ,  B04B9/08 ,  B04B2009/085

Abstract: A centrifuge rotor locking apparatus includes a C-shaped annular member for a snap-fit engagement about a drive hub. The member comprises first and second contacting segments and a third non-contacting segment. Centrifugation causes the contacting segments to flex outwardly and come into contact with the interior wall of the drive hole of a mounted rotor. The unbalanced mass distribution of the annular member causes the member to tend to slide off the drive hub. This further separates the contacting segments, thus increasing the locking effect of the annular member/drive hub assembly to the rotor as the member is wedged in place between rotor and drive hub.

Abstract translation: 离心机转子锁定装置包括用于与驱动毂相配合的C形环形构件。 该构件包括第一和第二接触段和第三非接触段。 离心导致接触段向外弯曲并与安装的转子的驱动孔的内壁接触。 环形构件的不平衡质量分布导致构件倾向于从驱动毂滑出。 这进一步分离接触段，从而当构件楔入转子和驱动轮毂之间的适当位置时，增加环形构件/驱动轮毂组件对转子的锁定效果。

公开(公告)号：US5752910A

公开(公告)日：1998-05-19

申请号：US545280

申请日：1992-12-07

Applicant: David Wai-Wing Cheng

Inventor： David Wai-Wing Cheng

IPC: B04B9/10 ,  B04B13/00 ,  G01P3/489

CPC classification number: B04B13/003 ,  Y10S388/924

Abstract: A centrifuge rotor overspeed protection system which can operate with rotors of at least two speed ranges. A set of coding elements are provided on the rotors coded to represent the actual maximum safe speed rating of the rotor. An additional set of coding elements coded to correspond to the maximum speed in the lower speed range are also provided such that the rotor can be operated at the maximum speed possible in a prior art centrifuge designed for operation in the lower speed range. The detection circuit for the coding elements automatically adjusts the detection threshold depending on the average values of the sensor output peaks corresponding to the codes.

Abstract translation: 离心机转子超速保护系统，可与至少两个转速范围的转子一起使用。 在转子上提供一组编码元件，以代表转子的实际最大安全速度额定值。 还提供了编码为对应于较低速度范围内的最大速度的附加编码元件组，使得可以在设计用于在较低速度范围内操作的现有技术的离心机中以最大速度操作转子。 用于编码元件的检测电路根据与代码对应的传感器输出峰值的平均值来自动调整检测阈值。