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Title: Apparatus for high speed rotation of electrically operated devices

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.

Inventors:
 [1];  [1]
  1. Valencia, CA
Issue Date:
OSTI Identifier:
862677
Patent Number(s):
3988049
Application Number:
05/396,609
Assignee:
United States of America as represented by United States Energy (Washington, DC)
Patent Classifications (CPCs):
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01R - ELECTRICALLY-CONDUCTIVE CONNECTIONS
H - ELECTRICITY H02 - GENERATION H02K - DYNAMO-ELECTRIC MACHINES
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
apparatus; speed; rotation; electrically; operated; devices; centrifuges; employ; relatively; diameter; elongate; flexible; drive; shaft; sometimes; called; quill; slender; shafts; absorb; vibration; assembly; passes; speeds; resonance; permit; re-alignment; axis; rotor; driven; event; center; mass; displaced; nominal; testing; electrical; components; conductors; wires; passed; slip; located; remote; longitudinally; alongside; device; mounted; extending; supported; radially; outward; directed; centrifugal; forces; plurality; strong; self-lubricating; slightly; compressible; wafers; washers; co-axially; stacked; provided; offset; aligned; openings; support; protected; rupture; damage; restricting; constraining; essential; flexure; bending; aligned openings; centrifugal force; electrical conductors; drive shaft; longitudinally extending; electrical conductor; radially outward; shaft assembly; radially offset; electrical device; electrically operated; centrifugal forces; operated devices; longitudinally aligned; electrical devices; axially stacked; /439/310/324/

Citation Formats

Williams, Keith E, and Rogus, Arnold J. Apparatus for high speed rotation of electrically operated devices. United States: N. p., 1976. Web.
Williams, Keith E, & Rogus, Arnold J. Apparatus for high speed rotation of electrically operated devices. United States.
Williams, Keith E, and Rogus, Arnold J. Tue . "Apparatus for high speed rotation of electrically operated devices". United States. https://www.osti.gov/servlets/purl/862677.
@article{osti_862677,
title = {Apparatus for high speed rotation of electrically operated devices},
author = {Williams, Keith E and Rogus, Arnold J},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1976},
month = {10}
}

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