LOU Zhi-feng, WANG Li-ding, WANG Xiao-dong, MA Yong . Analysis of slippage between discs and rail in involute measuring instrument with double-discs[J]. Editorial Office of Optics and Precision Engineering, 2011,19(10): 2450-2456
LOU Zhi-feng, WANG Li-ding, WANG Xiao-dong, MA Yong . Analysis of slippage between discs and rail in involute measuring instrument with double-discs[J]. Editorial Office of Optics and Precision Engineering, 2011,19(10): 2450-2456 DOI: 10.3788/OPE.20111910.2450.
Analysis of slippage between discs and rail in involute measuring instrument with double-discs
The slippage between discs and rail is one of important factors for the measurement accuracy of an involute. However
control of frictions effectively can modify the slippage of discs.In the paper
frictions between discs and rail are analyzed respectively when a cord and a belt are used to drive the discs to roll. According to the analysis and experiment
it shows that if measuring forces are 0.7 N and 0.2 N and the base discs is drived by the cord and belt
frictions are 0.02 N and 0.07 N respectively
for the base disc clockwise rolled; where the effect of the slippages of based discs on the involute measurement can be ignored. Moreover
the slippage can also be reduced by increasing the weight of base disc groups
and measurement difference of involute is 0.06 m when the rolling directions of the base discs are different.
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references
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