Theoretical investigations of the load distribution of small sized crown gear sets different material pairings

Markus Baar, Peter Oster, Thomas Tobie, Karsten Stahl

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

An analytical approach for the calculation of the load distribution on the flank of crown gears, based on the theory according Placzek [5], is proposed. The teeth of the face gear and the pinion are divided into equidistant slices perpendicular to the normal plane, where the local forces, resulting from the acting torque, are calculated under consideration of the local deformation behavior of the gear system. By considering the geometrical conditions like radii of curvature, etc., the local Hertzian stresses can be determined. Based on these considerations, the impact of the stiffness, the helix angel and the offset on the local force or load distribution is illustrated. Experimental tests were made to determine the load carrying capacity of small sized crown gear set. By vary the input torque, the size, the material pairing and the lubrication conditions, wear could be determined as main failure of the test gear sets. This basically effects on bad lubrication conditions of the standardly used grease. Due to the emergency running characteristics of plastic, the material pairing POM/steel shows better wear behavior than the material pairing steel/steel. This assumption can be verified by the test rig results.

Original languageEnglish
Title of host publicationVDI Berichte
PublisherVDI Verlag GMBH
Pages82-98
Number of pages17
Edition2294
ISBN (Print)9783180922911, 9783180922928, 9783180922935, 9783180922942, 9783180922959, 9783180922966, 9783180922973, 9783180922980, 9783180922997, 9783180923000, 9783180923017, 9783180923024, 9783180923031, 9783180923048, 9783180923055, 9783180923062, 9783180923079, 9783180923086, 9783180923093, 9783180923109, 9783180923116, 9783180923123, 9783180923130, 9783180923147, 9783180923154, 9783180923161, 9783180923192
StatePublished - 2017
Externally publishedYes
EventInternational Conference on Gear Production, 2017 and International Conference on High Performance Plastic Gears, 2017 - Munich, Germany
Duration: 13 Sep 201715 Sep 2017

Publication series

NameVDI Berichte
Number2294
Volume2017
ISSN (Print)0083-5560

Conference

ConferenceInternational Conference on Gear Production, 2017 and International Conference on High Performance Plastic Gears, 2017
Country/TerritoryGermany
CityMunich
Period13/09/1715/09/17

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