Apparatus for high speed rotation of electrically operated devic

Details Apparatus for high speed rotation of electrically operated devic Apparatus for high speed rotation of electrically operated devic

1973-09-12

1976-10-26

Custer, Jr., Granville Y.

Geometrical instruments

310 71, 339 8PB, 324158F, H01r 3934

Patent

active

039880494

ABSTRACT:
Most high speed centrifuges employ a relatively small diameter elongate flexible drive shaft, sometimes called a "quill" shaft. These relatively slender shafts are flexible to absorb vibration as the assembly passes through speeds of resonance and to permit re-alignment of the axis of rotation of the shaft and the rotor driven thereby in the event the center of mass of the rotor and shaft assembly is displaced from the nominal axis of the rotation. To use such an apparatus for testing electrical devices and components, electrical conductors for wires are passed from a slip ring assembly located at an end of the quill shaft remote from the rotor and longitudinally alongside the quill shaft to the electrical device mounted on the rotor. The longitudinally extending conductors are supported against the radially outward directed centrifugal forces by a plurality of strong, self-lubricating, slightly compressible wafers or washers co-axially stacked on the slender shaft and provided with radially offset longitudinally aligned openings to support the longitudinally extending conductors. The conductors are supported against the centrifugal forces and thus protected from rupture or other damage without restricting or constraining the essential flexure or bending of the drive shaft.

REFERENCES:
patent: 1394901 (1921-10-01), Hobart
patent: 3095252 (1963-06-01), Adkins
patent: 3185951 (1965-05-01), Le Beau

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