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Published byBernard Henderson Modified about 1 year ago

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Mechanical System

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

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

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

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F = PA Tradeoffs?

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

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Compressor The compressor squeezes air into the tank

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Pressure Switch & Gauges

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Regulator Reduces Pressure “downstream”

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

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Flow Control Fitting Restricts airflow in one direction Controls speed.

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

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Cylinders Where the action is Double acting

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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

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Hose and Prestolock Fittings

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Mechanisms

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

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