Apparatus for high speed rotation of electrically operated devices

Patent · Tue Oct 26 00:00:00 EDT 1976

OSTI ID:862677

Williams, Keith E ^[1]; Rogus, Arnold J ^[1]

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1. Valencia, CA

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.

• Assignee: United States of America as represented by United States Energy (Washington, DC)
• Patent Number(s): US 3988049
• Application Number: 05/396,609
• OSTI ID: 862677
• Country of Publication: United States
• Language: English

Related Subjects

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/