METHOD OF DETECTING PRELOAD OF BALL SCREW
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United States of America Patent
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Issued Date -
Aug 14, 2014
app pub date -
Feb 8, 2013
filing date -
Feb 8, 2013
priority date (Note) -
Abandoned
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Abstract
A method of detecting a preload of a ball screw is to acquire an operational signal of the ball screw, to process the operational signal via a theoretical ball pass order and an order tracking analysis procedure to acquire an actual ball pass order, to compare and judge the relationship between the actual ball pass order and the theoretical ball pass order via a preload judgment procedure, and finally to observe the proportion of occurrence of side band of the actual ball pass order to determine the preload status of the ball screw.
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