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A conveyor pulley is a mechanical device used to change the direction of the belt in a conveyor system, to drive the belt, and to tension the belt. Modern pulleys are made of rolled shells with flexible end disks and locking assemblies. Early pulley engineering was developed in Australia by Josef Sitzwohl in 1948 and later by Helmuth Lange and Walter Schmoltzi in Germany.
Components
Pulleys are made up of several components including the shell, end disk, hub, shaft and locking assembly. The end disk and hub may be one piece. The locking assembly may also be replaced with a hub and bushing on lower tension pulleys. The shell is also referred to as the rim in some parts of the world.
The pulley shaft is typically sized following CEMA B105.1 in the Americas or AS 1403 in Australia.
Design programs
- Conveyor Soft, pulley design program
- Helix delta-d Conveyor Pulley to AS1403 Software
- Pulley Maven, software for designing and analyzing conveyor pulleys
Manufacturers
Pulley manufacturers in East Germany (DDR) in 1962 included Zemag, Lauchhammer, and Köthen.
See also
References
- Sitzwohl, Josef Maria (August 1948). Welded Conveyor Pulleys - Analysis of Stresses in Pulley Shell (Thesis). St. Kilda, Melbourne, Victoria, Australia. ISBN 978-0-9884365-0-3.
- Lange, Helmut (1963). (Ph.D. thesis). Leibniz University Hannover.
{{cite thesis}}: Missing or empty|title=(help) - Schmoltzi, W. (1974). Designing Drums with Transverse Shafts for Belt Conveyors (Doctorate in Engineering thesis). Hannover, Germany: TU Hannover.
- Bahr, Johannes (1961–1962). "Neue Probleme der Bandtechnik". Freiberger Forschungs-Hefte. 207. Berlin: Akademie-Verlag: 55–72. ISSN 0071-9390. CODEN FFRAA.
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