ET 494 Spring 2014 Advisor: Dr. Ma Instructor: Dr. Koutsougeras
Southeaster Louisiana University Mechanical Engineering
Undergraduate
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Design a conveyor belt system for the Sustainability
Center
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Dusty environment Exposure to heat from the boiler Back burn
Pellet overflow/underflow Danger of moving parts with high torque
Belt slip or misalignment CEMA, ANSI, OSHA, etc.
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Requirements: Required Power Pulley Speed Required torque
Standard Motor power Motor Rpm Gear Ratio
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Variables: Ratio: Number of teeth /Number of threads Speed
Reduction Torque Increase Worm Gear Diametric Pitch (in)8 Worm
MaterialSteel Worm Gear MaterialCast Iron Double thread Ratios10:1
to 30:1 Worm gear (steel - bronze) Pitch Diameter (in)6 Double
Threaded Gear ratio (min) 10:1 to 20:1 Quad Threaded Gear ratio
(min) 4:1 to 10:1
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Source: www.baldor.com Figure adapted from powerdrive.com
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Variables: Capacity Stroke Length
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COMSOL Eulers formula Pulley stress Pulley deflection Cc> Sr
(Short Column)
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COMSOL Beam deflection Eulers formula Pulley stress Pulley
deflection
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Electrical Efficiency Feedback systems Safety Motor control
Elevation control Monitor feed (input/output) Temperature
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"Cherry-picking Conveyor Components to Optimize Energy
Efficiency." - Facilities Green Zone. N.p., n.d. Web. 22 Oct.
2013.. "Newfield Slewing Ring Company." Slew Drive. N.p., n.d. Web.
22 Oct. 2013.. BACtalk Product Line. N.p., n.d. Web. 01 Dec. 2013.
Baldor Electric Company, a Leader in Energy Efficient Electric
Motors,linear Motors and Adjustable Speed Drives Industry. N.p.,
n.d. Web. 1 Dec. 2013.. *Belt Conveyors for Bulk Materials. 6th ed.
Naples, FL: CEMA, 2007. Print.* "Welcome to Boston Gear." Welcome
to Boston Gear. N.p., n.d. Web. 27 Nov. 2013..