In this paper, the operation and analysis of a novel, highly configurable, infinitely variable transmission of the ratcheting drive type is presented. This particular drive uses a cam and a number of cam followers rotatably mounted to a carrier plate to generate an oscillatory motion in an equal number of planet gears. A number of indexing clutches are then used to rectify this motion into a rotational output. A full description of the mechanism, including its components, operation, and kinematic equations, are presented. There are a number of inversions of this device, and their characteristics and limitations are discussed. In addition, a method is presented to select the most suitable inversion, gearing, and maximum follower velocity for a given set of requirements.
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e-mail: dlahr@vt.edu
e-mail: dhong@vt.edu
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August 2009
Research Papers
Operation and Kinematic Analysis of a Cam-Based Infinitely Variable Transmission
Derek Lahr,
Derek Lahr
Department of Mechanical Engineering,
e-mail: dlahr@vt.edu
Virginia Polytechnic Institute and State University
, Blacksburg, VA 24061
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Dennis Hong
Dennis Hong
Department of Mechanical Engineering,
e-mail: dhong@vt.edu
Virginia Polytechnic Institute and State University
, Blacksburg, VA 24061
Search for other works by this author on:
Derek Lahr
Department of Mechanical Engineering,
Virginia Polytechnic Institute and State University
, Blacksburg, VA 24061e-mail: dlahr@vt.edu
Dennis Hong
Department of Mechanical Engineering,
Virginia Polytechnic Institute and State University
, Blacksburg, VA 24061e-mail: dhong@vt.edu
J. Mech. Des. Aug 2009, 131(8): 081009 (7 pages)
Published Online: July 27, 2009
Article history
Received:
April 6, 2008
Revised:
May 12, 2009
Published:
July 27, 2009
Citation
Lahr, D., and Hong, D. (July 27, 2009). "Operation and Kinematic Analysis of a Cam-Based Infinitely Variable Transmission." ASME. J. Mech. Des. August 2009; 131(8): 081009. https://doi.org/10.1115/1.3179004
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