Mechanical System. Agenda Mechanical Systems – Contest Outcomes Basic Pneumatics The Kit of Parts.

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Presentation transcript:

Mechanical System

Agenda Mechanical Systems – Contest Outcomes Basic Pneumatics The Kit of Parts

About the contest Emphasis on – Design Techniques (Discussed tomorrow) – Pneumatics Basics Components Symbols

About Pneumatics One type of Fluid Power Main difference between pneumatics and Hydraulics: Compressibility

F = PA Tradeoffs?

Components Compressor Pressure Switch Pressure Gauge Regulator Tank Flow Control Directional Control Valves (solenoid valves) Cylinders Hose and Fittings

Compressor The compressor squeezes air into the tank

Pressure Switch & Gauges

Regulator Reduces Pressure “downstream”

Tank Accumulator, receiver Size determines how much energy is available. – Keep this in mind when testing on the testbed

Flow Control Fitting Restricts airflow in one direction Controls speed.

Directional Control Valves Solenoid Valves, 4 or 5-Way Valves, Spool Valves

Cylinders Where the action is Double acting

Force Available At 60 psi… – 5/16 bore Extend: 4.6 lbs Retract: 3.8 lbs – ¾ inch bore Extend: 26 lbs Retract: 24 lbs – 1.5 inch bore Extend: 106 lbs Retract 97 lbs

Hose and Prestolock Fittings

Mechanisms

About Parts Available Sources: – Kit of Parts – Metal Choices – Material Requisition Form