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Published byColeman Burchard Modified about 1 year ago

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Outline My vantage point as a syrupmaker Overall design requirements for mechanizing a mill Internet-based calculators to assist in meeting design requirements RPM and rpm calculator Torque and torque calculator Power and power calculator

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Cow Barn Mule Shelter Corn Storage Vehicle Shed Pack Houses Bee YardMuscadines Tobacco Barns, Goat Shelter, Mulberries, Pecans, Chickens Smoke House, Ice House, Out House, Well Shelter (Wash Pots &c.) Small Fruits Feed Mill Blacksmith Shop Sugar Mill Yard Goldens’ No. 2 (New Model) Rollers: 6 inches long Juice output: 45 gallons per hour Power: 1 horse, heavy

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The Journey from a “Trash” Mill... Goldens’ No. 2 (New Model) to a Finished Product. Kettle of Syrup

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Design Requirements 1.Establish Target Revolutions per Minute 2. Establish Target Torque 3. Establish Target Power

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Three Internet-based Calculators

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Revolutions Per Minute Too Fast: Juice does not drip from bagasse before ejection from mill Base plate designs insufficient for large volumes of juice Wear on mill Safety concerns Too Slow: Decreased capacity Just Right: Surface Roller Speed: 27 feet per minute

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Design Requirements For Goldens’ No. 2 (New Model) 1.Revolutions per Minute = Establish Target Torque 3. Establish Target Power Torque

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The Great American Cane Mill Goldens’ Foundry and Machine

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Force Measurements to Crush Cane Thirteen Oaks Farm and Cane Mill Hartford, Alabama

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Kinds of cane

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The measurements easily provide the force (which can be converted to torque) for this particular mill.

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The Problem: Generalize the Force Requirements from A Particular Mill to Torque Requirements for Any Mill.

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My Active Sugar-cane Buddies

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... and after too much Torque Talk and Mathematics:

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... a softer approach: Ends of rollers can not be used Effective Roller Length

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Small-diameter Roller Torque and Force at Roller Face Large-diameter Roller

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Design Requirements For Goldens’ No. 2 (New Model) 1.Revolutions per Minute = Minimum Torque = 1272 ft-lbs 3. Establish Target Power Power

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...many ways to achieve target rpm and torque:

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Electric Motor, Right-Angle Speed Reducer, & Chain Drive Chain guard removed for illustration

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Drive Train Design Use of Chain Drive: High mechanical efficiency (~95%) Inexpensive Low overhang load compared with belt drive Large sprocket on mill (6x): low overhang load and use of smaller speed reducer. Use of Right-angle Speed reducer: Low ratios have higher mechanical efficiency.

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Thank you for your attention.

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