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RESEARCH PAPERS

Displacement Analysis of Spatial 7R Mechanisms Suitable for Constant-Velocity Transmission Between Parallel Shafts

[+] Author and Article Information
M. J. Gilmartin

Dept. of Mechanical Engineering, Liverpool Polytechnic, England

J. Duffy

Dept. of Mechanical Engineering, Rensselaer Polytechnic Institute, Troy, New York

J. Mech. Des 101(4), 604-613 (Oct 01, 1979) (10 pages) doi:10.1115/1.3454109 History: Received May 20, 1978; Online October 21, 2010

Abstract

Three types of spatial 7R mechanisms are identified as being suitable for transmitting motion with a constant velocity ratio between two parallel shafts. A displacement analysis of each type is made using a vector loop method in conjunction with the Unified Theory method. Numerical results are presented for an example of each type. It is also shown how the double Hooke joint coupling for parallel shafts is a special case of one of these three types.

Copyright © 1979 by ASME
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