Please enable JavaScript.
Coggle requires JavaScript to display documents.
Mechanical Mechanisms - Coggle Diagram
Mechanical Mechanisms
Gears
Chain and sprocket
Rotates in same direction strong
Ratchet and Pawl
only rotates one direction
Rack and Pinion
rotation to linear motion
Compound Gear Train
Gear size determine speed
Used to change direction of rotation
Bevel gear
Rotation through 45 degrees
Idler Gear
Used to fill gaps between driver and driver gear
Spur gear
Difference sizes
Worm and Worm Wheel
High tourque
Very slow
Motors
Gearbox
Set speed
Expensive
3v Motor
small
Ideal for fan
Servo
high troque
Rotates through 180
Stepper
used in CNC
Inline
ideal for wheels
Rotates 360
cheap
ratio 120:1
Cams and followers
coverts rotational motion to linear motion
straight line movement
Many shapes
Shape determines movement of follower
follower shape determines accuracy
Pulleys
Stepped pully
Changed Speeds
Regular pully system
Pulleys rotate in same direction
Reverse pully
Change direction using belt
idler pulley
allows for tension on pulley belt
Speakers
Piezo
ideal for single tones
Micro Speaker
Plays tunes
Buzzer
One Sound
Linkage
Parrallell linkage
Transfers motion from one point to another