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Face Gear Drive With Helical Involute Pinion: Geometry, Generation by a Shaper and a Worm, Avoidance of Singularities and Stress AnalysisA new type of face-gear drive with intersected axes of rotation formed by a helical involute pinion and conjugated face-gear has been investigated. Generation of face-gears by a shaper free of undercutting and pointing has been investigated. A new method of grinding or cutting of face-gears by a worm of special shape has been developed. A computerized design procedure has been developed to avoid undercutting and pointing by a shaper or by a generating worm. Also, a method to determine the limitations of the helix angle magnitude has been developed. The method provides a localization of the bearing contact to reduce the shift of bearing contact caused by misalignment. The analytical method provides a simulation of the meshing and contact of misaligned gear drives. An automatic mesh generation method has been developed and used to conduct a 3D contact stress analysis of several teeth. The theory developed is illustrated with several examples.
Document ID
20050080713
Document Type
Contractor Report (CR)
Authors
Litvin, Faydor L.
(Chicago Univ. Chicago, IL, United States)
Fuentes, Alfonso
(Polytechnic Univ. of Cartagena Spain)
Gonzalez-Perez, Ignacio
(Chicago Univ. Chicago, IL, United States)
Piscopo, Alessandro
(Chicago Univ. Chicago, IL, United States)
Ruzziconi, Paolo
(Chicago Univ. Chicago, IL, United States)
Date Acquired
September 7, 2013
Publication Date
February 1, 2005
Subject Category
Mechanical Engineering
Report/Patent Number
NASA/CR-2005-213443
ARL-CR-557
E-14979
Funding Number(s)
PROJECT: DA Proj. 1L1-62211-A-47-A
CONTRACT_GRANT: NAG3-2450
WBS: WBS-22-714-09-15
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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