Presentation on theme: " Air! A pneumatic assembly is one that converts energy stored in compressed air to mechanical energy. Electrical Energy Compressed air Mechanical force."— Presentation transcript:
Air! A pneumatic assembly is one that converts energy stored in compressed air to mechanical energy. Electrical Energy Compressed air Mechanical force Compressor Release of air
False! Tiny investment, major returns Requires only some heavy components Pneumatics are usually very light in comparison to motors! › No heavy motors › No gearboxes › No sprockets, etc.
FIRST made the rules much nicer this past year. Unlimited air storage Much lighter compressor
Putting into motion Motors rotate, cylinders extend and retract Good in different situations Motors Pneumatics
Pneumatics – good for fixed distances of travel Motors – good for infinite travel Examples: › Raising and lowering arm: fixed › Extending and retracting arm: fixed › Driving – infinite › Operating a belt – infinite › Spinning a wheel – infinite › Opening and closing a claw - fixed
Pneumatics are not heavy! If you need infinite motion, use motors. If you need a fixed distance of travel, use pneumatics. › Don’t try to use one for the other!
How to build them!
New (“Rookie”) Compressor Old Compressor
Simple Concept – stores air Unlimited quantity
FIRST requires that: › Max storage pressure: 120 psi › Max working pressure: 60 psi Regulator does that! In line between tanks and cylinders
What actually does the moving!
Bore Diameter: › The diameter of the bore (inside) of the cylinder. Increasing this increases force applied by the cylinder, but also increases air used. Stroke Length: › The distance the piston travels when extending or retracting. Increasing this increases air used.
The valve that controls air flow Electronically controlled 2 types › Single-solenoid › Double-solenoid