Planetary gear reduction problem. The outer gear ring is fixed with 80 teeth, the planet tooth is 30 teeth, the center tooth is 20 teeth.1, can the meshing drive.2, the planet carrier input power, the sun tooth output power. What is the speed ratio?
The number of teeth of the star wheel and the transmission ratio never mind
Drive ratio = active speed / driven speed = number of driven teeth / active teeth number)
The ring is fixed, the frame is active, the sun wheel is driven, and the speed ratio of the same direction increase is 1/5 (the number of the teeth of the rack = the number of the sun gear teeth and the number of teeth inside the gear ring;
