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Mechanism (Simple mechanisms (incline plane, screw, wheel & axle,…
Mechanism
Simple mechanisms
incline plane
screw
wheel & axle
wedge
lever
pulley
Example
peg and slot
rotary motion to oscillating motion
Crank and Slider
rotary motion to reciprocating
parallel motion linkage
linear motion to linear motion
Reverse motion linkage
linear to linear opposite directions through rotary
bell crank
changes motion through 90
Motions
Linear
Recipricating
Rotary
Oscillating
Levers
1st Class
Sea Saw
2nd Class
Wheel barrow
3rd Class
Tweezers
Gears
Types of Gear
Worm and Wheel
Input can only be the worm
Rack and pinion
Gear train
RPM - Speed per minute/ circumference in m
Or teeth ratio
gear ration - biggest one = 1
Moment = Force x Perpendicular Distance
