Saturday, October 26, 2019

Epicyclic Gear train


 Epicyclic  Gear train  :-    

In case of  Epicyclic  Gear train, the axis of shafts on which gears are mounted may have a relative motion between them, unlike other gear trains.

This gives advantage that, very high or low velocity ratio can be obtained compared to simple and compound gear trains; in the small space.
  
In above sketch, if gears A and B are rotating and arm RS is fixed, then it behaves like simple gear train.

 However, when Arm C rotates and gear A is fixed, then train becomes epicyclic. It is also known as planetary gear train.

Diagram:-




Applications-

Differential gears of the automobiles,

back gear of lathe,

hoists, pulley blocks

No comments:

Post a Comment