Design of One Stage Planetary Gear Train With Improved Conditions of Load Distribution and Reduced Transmission Errors

[+] Author and Article Information
F. L. Litvin, D. Vecchiato, A. Demenego

Gear Research Center, University of Illinois at Chicago, Chicago, IL 60607

E. Karedes, B. Hansen

Sikorsky Aircraft Co., 6900 Main St., Stratford, CT 06615

R. Handschuh

NASA Glenn Research Center and Army Research Laboratory, 21000 Brookpark Rd., Cleveland, OH 44135

J. Mech. Des 124(4), 745-752 (Nov 26, 2002) (8 pages) doi:10.1115/1.1515797 History: Received March 01, 2001; Online November 26, 2002
Copyright © 2002 by ASME
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Illustration of generation of profile crowned planetary gear: (a) parabolic profile of applied rack-cutter; (b) schematic of generation
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Illustration of longitudinal crowning in planetary gear
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Illustration of double crowned spur gear
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Illustration of regulation of backlash: (a) backlash between gears 1, 3 and 2 before regulation; (b) elimination of backlash by axial displacement Δz(i)
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Functions of transmission errors of sub-trains (1,2(1),3) and (1,2(2),3)
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Illustration of relations between functions Δϕ3(1)1) and Δϕ3(k)1)
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Functions of transmission errors Δϕ3(i)1) caused by double-crowning and errors of location of planetary gears
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Illustration of functions of transmission errors for sub-drives and integrated function
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For derivation of phase angle Δ1(k)
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Schematic of planetary gear train
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Installation of planetary gear 2(1)
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Illustration of orientation of tooth (spaces) of axes of symmetry of gears 2,3(2),3 with respect the center distance O3O2(2)



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