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Project-Coconut Dehusking Machine ppt

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Project-Coconut Dehusking Machine ppt

  1. 1. COCONUT DEHUSKING MACHINE Group No :9 AFTHAB K MUHAMMED ARJUN C VIJAYAN BASIL VARGHESE BIJU V V
  2. 2. INTRODUCTION GENERALLY, COCONUTS ARE DEHUSKED MANUALLY USING EITHER A MACHETE OR A SPIKE [1] ATTEMPTS AT MECHANISATION HAS SO FAR EITHER BEEN NOT FULLY SUCCESSFUL OR ENDED UP TOO COSTLY DISADVANTAGES OF PRESENT TECHNIQUES: TIME CONSUMING HUMAN EFFORT REQUIRED LACK OF MAN POWER AVAILABILITY COCONUT DEHUSKING MACHINE USES ELECTRIC POWERED ROTARY BLADE MECHANISM TO TEAR OFF THE HUSK FROM COCONUT
  3. 3. AIM OF PROJECT WITH COCONUT DEHUSKING MACHINE WE AIM TO PROVIDE : LOW COST COCONUT DEHUSKING REDUCTION OF HUMAN EFFORT REDUCTION OF MANPOWER REQUIREMENT IMPROVEMENT ON NUMBER OF NUTS PROCESSED PER HOUR
  4. 4. DESIGN
  5. 5. COMPONENTS FRAME BEARINGS & BEARING HOUSING GEARS HOLLOW SHAFTS BLADES CHAIN & SPROCKETS ELECTRIC MOTOR OVER ARM & SPRING ARRANGEMENT
  6. 6. SPECIFICATIONS ANGLE : ISA 4545 HOLLOW SHAFT : 40M BEARINGS : 45BC02 GEARS : SPUR TYPE 89MM RD, 108MM OD, 19MM PITCH SPROCKET : 210MM OD & 83MM OD BLADES : 1”, 3MM FLAT MOTOR PHASE : SINGLE POWER : 1HP SPEED : 1420RPM
  7. 7. WORKING PRINCIPLE
  8. 8. FABRICATION a) FABRICATION OF FRAME [2]  CUTTING [5]  GRINDING & [6]  WELDING OF ANGLE SECTION b) FABRICATION OF BEARING HOUSING  BENDING &  WELDING OF FLAT c) GEAR SPLIT INTO TWO BY OXY ACETYLENE TORCH d) TURNING OF SHAFTS INTO REQUIRED OD [3] e) CONNECTING SHAFT TO BEARING HOUSING SPOTTING BEARING HOUSING f) FABRICATION OF BLADES [4]  CUTTING &  WELDING OF FLATS ONTO SHAFTS
  9. 9. FABRICATION CONTD. g) FIXING OF GEARS FABRICATION OF SLEEVE SPOTTING OF GEARS ONTO SHAFT h) SPOTTING OF SPROCKET ONTO SHAFT i) FIXING OF MOTOR DRILLING OF BOLT HOLES ON FLATS SPOTTING OF FLATS BOLTING MOTOR ONTO FLAT j) SPOTTING OF SPROCKET ON MOTOR SHAFT k) CONNECTING CHAIN TO THE SPROCKETS l) FABRICATION OF OVER ARM & CONTAINMENT BOX m) WELDING OF GI SHEETS TO FRAME
  10. 10. MODIFICATIONS COCONUT GETTING JAMMED BLADE CONFIGURATIONS CHANGED BLADE HEIGHT REDUCED AND RECUT SPEED OF ROTATION HIGH PULLEY CHANGED TO CHAIN AND SPROCKET INTERMEDIATE SHAFT UNDER FABRICATION
  11. 11. FINAL STATUS  TIME:  PULLEY : 2 min  CHAIN : 1.5 min  TWO STAGE : 1 min  OVER ARM : 17 Sec  DEHUSKED 8 COCONUTS TILL DATE VIDEO
  12. 12. COST FACTOR FINAL COST : Rs 5000/- MARKET PRICE COST OF PNEUMATIC SYSTEM : Rs 20000/- COST OF HYDRAULIC SYSTEM : Rs 30000/- COST OF ELECTRIC SYSTEM : Rs 40000/- MACHINE DEVELOPED BY KERALA GOVT INITIATIVE : Rs 75000/-
  13. 13. FUTURE SCOPE & MODIFICATIONS REDUCING SPEED OF MOTOR : 8 POLE MOTOR POWER OF MOTOR MUST BE INCREASED : 2 Hp DISTANCE BETWEEN SHAFTS MUST BE INCREASED LENGTH OF SHAFTS MUST BE INCREASED HOPPER ARRANGEMENT CAN BE PROVIDED
  14. 14. ADVANTAGES ON MODIFICATION FAST OPERATION LESS MANPOWER REQUIREMENT LABOUR REQUIREMENT MINIMUM CAN BE CLUBBED ALONG WITH HUSK SHREDDING UNITS FOR MASS PRODUCTION NUTS PER HOUR HIGH COMPARED TO PNEUMATIC AND HYDRAULIC SYSTEMS COST LESS COMPARED TO PNEUMATIC AND HYDRAULIC SYSTEMS
  15. 15. CONCLUSION THROUGH THIS PROJECT WE WILL BE ABLE TO OFFER LOW COST DEHUSKING SOLUTION MAXIMUM SCRAP UTILISATION 120 TO 200 NUTS PER HOUR  ON APPLYING MODIFICATION WE CAN  MAXIMIZE DEHUSKING EFFICIENCY  REDUCE SPEED OF ROTATION  IMPROVE TORQUE
  16. 16. THANK YOU

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