Loci in Epicyclic gearing A3

1,808 views · Published 5 July 2012 · 0:14 · Indexed 23 September 2026

Channel: thang010146 · 2012 · Science & Technology

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R: pitch diameter of the fixed sun gear
r: pitch diameter of the planetary gear
k = R/r = 3
Loci of various points on the planetary gear are shown.
The red is for a point on the pitch circle of the planetary gear.
It is a special hypocycloid: deltoid. The two other loci are hypotrochoid.
1 cycle of the mechanism corresponds 1 revolution of the input crank.

Inventor files of this video:
http://www.mediafire.com/file/4fw2fomau339k5s/LociEpicyclicGearingA3Inv.zip/file

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