Measurement System for High Precision Planetary Servo Gearhead

FAN Shuqian; ZHANG Lili; WANG Lei; SHI Mingquan

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Measurement System for High Precision Planetary Servo Gearhead

FAN Shuqian,ZHANG Lili,WANG Lei,SHI Mingquan * #

School of Mechatronic Engineering,University of Electronic Science and Technology of China

*Correspondence author

#Submitted by

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Funding: Research Fund for the Doctoral Program of Higher Education of China（No.Grant No. 20070614022; 200806141063）

Opened online:23 March 2011

Accepted by: none

Citation: FAN Shuqian,ZHANG Lili,WANG Lei.Measurement System for High Precision Planetary Servo Gearhead[OL]. [23 March 2011] http://en.paper.edu.cn/en_releasepaper/content/4416715

Current methodologies for measuring mechanical properties of high precision planetary servo gearhead typically rely on various specified systems. We have developed a multifunctional measurement system that employs a torque sensor and a laser displacement transducer to simultaneously measure torque applied on servo gearhead and its corresponding torsional deformation. This technique relies on the accurate measurement of the relative displacement between input clamping system and output shaft of servo gearhead with a lever-type enlarging mechanism, rather than traditional optical dividing head and optical multisurface prism. Using interchangeable fixture system, we demonstrate the ability of this technique to measure static characteristics such as backlash, torsional stiffness and emergency stop torque etc. for almost all series and specifications of high precision planetary servo gearhead. With the results of steel tabular specimen torsion test with the system, the measurement repeated precision and reliability are verified.

Keywords:servo gearhead; measurement;hysteresis plot;emergency stop torque

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