Dynamic balance testing machine
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United States of America Patent
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-
N/A
Issued Date -
Jan 19, 2006
app pub date -
Jun 4, 2003
filing date -
Jun 13, 2002
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A dynamic balance testing machine is provided with mechanical arrangements for canceling out a free moment of an asymmetrical crank shaft and capable of accurately measuring a rotating unbalance of the asymmetrical crank shaft. A compensation rotational shaft 10 having a compensation weights 11 for canceling out a free moment of a crank shaft 5 as a test piece is provided on a vibration cradle 1. The compensation rotational shaft 10 is rotated by a synchronous motor 9 other than a synchronous motor 8 for rotating the crank shaft 5. The synchronous motor 9 is rotated based on a reference signal detected by an optical sensor 18 (13, 14) in such a manner that the synchronous motor 9 is synchronously rotated with the rotation of the crank shaft.
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Cited Art Landscape
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