Power Transmission Flashcards
(13 cards)
What is a simple gear train?
A system consisting of up to three gears used to transmit motion and force.
What are the main types of belt systems?
Toothed belts, round belts, and V-belts.
What is the function of a chain and sprocket system?
To transmit rotary motion and power over a distance using linked chains.
What is the role of an idler gear?
To change the direction of rotation without affecting the gear ratio.
How can gear systems change speed?
By varying the size (number of teeth) of the driving and driven gears.
How can gear systems change the direction of rotation?
Using idler gears or changing gear arrangement.
What is the formula to calculate gear ratio in a simple gear train?
Gear ratio = Number of teeth on driven gear ÷ Number of teeth on driver gear.
What happens to speed if the gear ratio is greater than 1?
The output speed decreases, but torque increases.
What happens to speed if the gear ratio is less than 1?
The output speed increases, but torque decreases.
Why are V-belts preferred over round belts in some applications?
Because they provide better grip and transmit more power without slipping.
How do toothed belts differ from round and V-belts?
Toothed belts have teeth that fit into matching grooves to prevent slipping.
Give an example application for chain and sprocket systems.
Bicycles and motorcycles for power transmission.
How do you calculate gear ratios in a system with three gears?
Calculate the ratio between the first and second gear, then multiply by the ratio between the second and third gear.
