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Design of an All-Revolute, Linkage-Type, Constant-Velocity Coupling
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English
Abstract
This paper describes a design methodology for a three degree-of-freedom, linkage-based constant-velocity coupling. This coupling resembles the Clemens coupling patented in 1872 and has evolved from the authors' previous research in parallel mechanisms. This coupling contains only revolute joints and is therefore likely to be more durable and less prone to manufacturing errors than conventional higher-pair couplings. The kinematic configuration, based on the symmetric double octahedral Variable Geometry Truss mechanism (figure 2), has many inherent traits that make it ideal for application to industrial uses. Its parallel design of simple links and revolute joints provide it with high strength, rigidity, and light-weight characteristics. It has a link-joint construction that allows its geometry to be varied for specific applications, such as producing high angular deflection between the input and output shafts. In fact this coupling has the unique capability of producing solid joint angles greater than 180 degrees. Further, the physical construction of the coupling greatly improves heat transfer, making it less susceptible to thermal failures that limit the speed and range of motion of some existing couplings.
Authors
Citation
Canfield, S., Salerno, R., and Reinholtz, C., "Design of an All-Revolute, Linkage-Type, Constant-Velocity Coupling," SAE Technical Paper 952133, 1995, https://doi.org/10.4271/952133.Also In
References
- Canfield, S. L. Salerno, R. J. Reinholtz, C. F. 1994 “Kinematic Design of a Large-Angular-Motion Constant-Velocity Coupling,” 23rd Biennial Mechanisms Conference Minneapolis, MN September 1994 167 174
- Canfield, S. L. Reinholtz, C. F. 1993 “Development of an All-Revolute-Jointed Constant-Velocity Coupling,” 3rd National Applied Mechanisms and Robotics Conference
- Clemens, Melville 1872 “Shaft-Coupling”
- Culver, I. H. 1969 “Constant Velocity Universal Joint”
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- Reddy, R. R. 1970 “Universal Joint”
- Salerno, R. J. Canfield, S. L. Ganino, A. J. Reinholtz, C. F. 1995 “A Parallel, Four Degree-of-Freedom Robotic Wrist,” 15th Design Automation Conference Boston, MA September 1995
- The Society of Automotive Engineers 1979 Universal Joint and Driveshaft Design Manual Advances in Engineering Series, No. 7 SAE Inc. Pennsylvania 99 101