Unified Approach to Cycloid Drive Profile, Stress, and Efficiency Optimization

Cycloid drives are compact, efficient speed reducers. In this paper, a unified set of equations is presented to optimize their design. The conceptual framework and profile design are described. Sources and effects of tolerance are then introduced, including profile reduction, backlash and torque ripple, and maximum gear-ratio. Equations for stress, efficiency, and moment of inertia are provided.

[1]  Linda C. Schmidt,et al.  A New Cycloid Drive With High-Load Capacity and High Efficiency , 2004 .

[2]  A. Harnoy,et al.  Bearing Design in Machinery: Engineering Tribology and Lubrication , 2002 .

[3]  Alin Albu-Schaffer,et al.  Soft robotics , 2008, IEEE Robotics Autom. Mag..

[4]  Bingkui Chen,et al.  Gear geometry of cycloid drives , 2008 .

[5]  Alin Albu-Schäffer,et al.  Soft robotics , 2008, IEEE Robotics & Automation Magazine.

[6]  Jaydev P. Desai,et al.  Estimation and modeling of the harmonic drive transmission in the Mitsubishi PA-10 robot arm , 2003, Proceedings 2003 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS 2003) (Cat. No.03CH37453).

[7]  Daniel C. H. Yang,et al.  Design and application guidelines for cycloid drives with machining tolerances , 1990 .

[8]  Chiu-Fan Hsieh,et al.  Geometric Design Using Hypotrochoid and Nonundercutting Conditions for an Internal Cycloidal Gear , 2007 .

[9]  Richard P. Paul,et al.  A torque sensing technique for robots with harmonic drives , 1993, IEEE Trans. Robotics Autom..

[10]  Wei Zhang,et al.  Simple explicit formulae for calculating limit dimensions to avoid undercutting in the rotor of a Cycloid rotor pump , 2006 .

[11]  Carlo Gorla,et al.  Theoretical and Experimental Analysis of a Cycloidal Speed Reducer , 2008 .

[12]  Paolo Pennacchi,et al.  Non Undercutting Conditions in Internal Gears , 2000 .

[13]  Joong-Ho Shin,et al.  On the lobe profile design in a cycloid reducer using instant velocity center , 2006 .

[14]  Joseph Edward Shigley,et al.  Mechanical engineering design , 1972 .