Gear Trains:

In this unit, the analysis of gears is presented to you. Involutes profile is generally utilized for gears however they have problem of interference that can be avoided by utilizing any one of the various methods proposed in the last Unit. You will be explained gear trains here. A gear train is a combination of gears that is utilized for transmitting motion from one shaft to another shaft. It can include several types of gears based on the location of output and input shafts. There are several types of gear trains that are utilized in practice. A gear train may be designed to provide smaller gear ratio to bigger gear ratios based on the requirement.

Objectives

After learning this unit, you must be able to

• understand several types of gear trains,
• Estimate gear ratio for different kind of gear trains,
• Estimate torque in epicyclic gear trains, and
• Explained and described working of epicyclic gear box, cyclometer and differential gear.