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Article
Strain-gauge, brushless torque meter
Iowa State University Patents
  • Wesley F. Buchele, Iowa State University
Document Type
Report
Publication Date
8-22-1973
Abstract

A torque meter comprising hollow-keyed, input and output female shafts adapted to receive the male shafts of the power source and machine respectively. Each shaft has a circular flange whose face is perpendicular to the center line of the shafts. Each flange has a plurality of equally spaced cylindrical recesses machined into the inside face thereto adapted to receive conical inserts therein. Balls are contained by the conical inserts and transmit the rotational movement from the input to the output shaft. A stationary housing extends around the input and output shaft and has a transducer shell secured thereto. When force is applied to the input shaft to cause movement, the balls encounter torsional resistance which causes the balls to roll up the ramps of the conical seat inserts to separate the two torque flanges. The force transmitted through the balls causes rotation to the output shaft and produces tension to the stationary transducer shell. The stationary transducer shell is instrumented with semi-conductor strain gauges.

Patent Number
3,881,347
Assignee
Iowa State University Research Foundation, Inc.
Application Number
390,602
Date Filed
8-22-1973
Language
en
Date Available
December 17, 2012
File Format
application/pdf
Citation Information
Wesley F. Buchele. "Strain-gauge, brushless torque meter" (1973)
Available at: http://works.bepress.com/wesley_buchele/21/