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mechanical mechanisms - Coggle Diagram
mechanical mechanisms
Gears
Compound gear train
Gear size determens speed
idler gear
Used to change direction of rotation
Used to fill in gaps between driver and driven gears
Worm and Worm wheels
High torque
Low speed
Ratchet and pawl
Only rotates one direction
Chain and Sprocket
rotates in the same direction
strong
Rack and pinion
rotation to linear motion
Bevel Gear
rotates through 45 degrees
Spur gear
Difference sizes
Motors
Inline
Ratio 120:1
Cheap
Rotates 360 degrees
Ideal for wheels
Servo
High torque
Rotates through 180
Gearbox
Set speed
Stepper
Expensive
Used in CNC
3v moter
Ideal for fans
Small
Pulleys
Stepped pulley
Change Speeds
Reverse Pulleys
Changes direction using the belt
Regular pulley system
Pulleys rotate in same direction
Idler pulley
allows for tension on pulley belt
Cams and followers
Many shapes
Shape determines movement of followers
Converts rotational motion to linear motion
Strat line movement
Follower shape determines the accuracy
Speakers
Buzzer
One sound
Piezo
Ideal for single tones
Micro speaker
Plays tunes
Linkage
Parallel linkage
Transfers motion from one point to another
