Orange Harvester Red B Mockup Presentation October 20, 2005 1 - - PowerPoint PPT Presentation

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Orange Harvester Red B Mockup Presentation October 20, 2005 1 - - PowerPoint PPT Presentation

Mar 14, 2023 218 likes •471 views

Orange Harvester Red B Mockup Presentation October 20, 2005 1 U.S. Orange Market Fresh: 2.5 Million Tons (20%) Processed: 10 Million Tons (80%) 2 Baseline Harvesting o Hand picked o Carry bag o Fiberglass ladders o Dump into 1,000 pound box

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Orange Harvester

Red B Mockup Presentation October 20, 2005

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U.S. Orange Market

Fresh: 2.5 Million Tons (20%) Processed: 10 Million Tons (80%)

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Baseline Harvesting

  • Hand picked
  • Carry bag
  • Fiberglass ladders
  • Dump into 1,000

pound box

  • Fork lift and truck

collect box

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Grove Layout

Hedgerow 8’ 15’

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Product Proposition

To assist hand pickers & be faster, more efficient and safer

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Key Issues

  • 1. Platform and Chute Design
  • 2. System/Process Design
  • 3. Harvesting Rate

Improvements

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Technical Analysis

Customer Needs Product Attributes Engineering Specs Faster picker than humans alone Eliminate time wasting steps (moving ladders, emptying bag, etc) Develop chute: 3600+

  • ranges per hour per

person All oranges can be reached Allows workers to climb up into tree and lean out from platform 5 ft pivoting ladder Orange Quality Oranges must get to bin without damage Compliant chute used to deliver oranges to bin Cleanliness Can be sterilized Removable chute

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Platform Design

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Our Mockup

¡ Why did we build it?

l Spatial understanding of the product l Key issues: design and operation

¡ What did we learn?

l Scale and human interaction l Chute tests

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Mockup

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Chute Test

Canvas Foil Duct

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Canvas/Duct Chute

Foil: Broke apart Canvas: Not rigid Duct: Too fast Solution: Canvas in Duct

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System Process

¡ Connect platforms into a short train ¡ 1 Platform ~ 5 trees ¡ “Quick change” operated by pickers ¡ Reload with empty boxes

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Pivoting Stage Wheels Sliding Ramp Rollers Full Field Box on Cart

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Wheels Elevated Container Trap Doors on both sides Wheels Open Trap Door Empty Stationary Field Box

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Rate Improvement

CURRENT method PROPOSED method

Picking fruit from tree >2 fruit/sec Same Getting to Fruit Climbing ladder Stand on platform Transporting fruit Carry 45lb bag down ladder to stationary field box Fruit sent down chute into field box Overall Productivity ~810 lbs/hour Up to 900lbs/hr ~10% improvement

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Cost Estimation

¡ Decrease tree height 6 ft = 10%

speed improvement

¡ $900 savings/worker/year ¡ Cost/platform < $3500 (pay off

in 2 years)

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Next Steps

  • Test mechanism for quick change
  • Increased chute compliance
  • Pick materials
  • Wheel size and alignment
  • Linkage details
  • Testing
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Acknowledgments

Arizona State University Julian W. Sauls, Ph. D. Donald L. Peterson