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Outline

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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Outline

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  1. 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

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

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

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

  5. Three Internet-based Calculators

  6. 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

  7. Torque Design RequirementsFor Goldens’ No. 2 (New Model) • Revolutions per Minute = 8.6 2. Establish Target Torque 3. Establish Target Power

  8. Goldens’ Foundry and Machine The Great American Cane Mill http://www.syrupmakers.com

  9. Force Measurements to Crush Cane Thirteen Oaks Farm and Cane MillHartford, Alabama

  10. Kinds of cane

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

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

  13. My Active Sugar-cane Buddies

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

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

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

  17. Power Design RequirementsFor Goldens’ No. 2 (New Model) • Revolutions per Minute = 8.6 2. Minimum Torque = 1272 ft-lbs 3. Establish Target Power

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

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

  20. 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.

  21. Thank you for your attention. http:/www.southernmatters.com

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