Coconut Dehusking Machine 3w503r

COCONUT DEHUSKING MACHINE Group No :9

AFTHAB K MUHAMMED ARJUN C VIJAYAN BASIL VARGHESE BIJU V V

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

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

DESIGN

COMPONENTS  FRAME  BEARINGS & BEARING HOUSING

 GEARS  HOLLOW SHAFTS  BLADES  CHAIN & SPROCKETS  ELECTRIC MOTOR  OVER ARM & SPRING ARRANGEMENT

SPECIFICATIONS  ANGLE  HOLLOW SHAFT  BEARINGS  GEARS  SPROCKET  BLADES

: : : : : :

ISA 4545 40M 45BC02 SPUR TYPE 89MM RD, 108MM OD, 19MM PITCH 210MM OD & 83MM OD 1”, 3MM FLAT

: : :

SINGLE 1HP 1420RPM

MOTOR  PHASE  POWER  SPEED

WORKING PRINCIPLE

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

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

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

FINAL STATUS  TIME:  PULLEY

:

2 min

 CHAIN

:

1.5 min

 TWO STAGE

:

1 min

 OVER ARM

:

17 Sec

 DEHUSKED 8 COCONUTS TILL DATE

VIDEO

COST FACTOR  FINAL COST

:

Rs 5000/-

 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/-

MARKET PRICE

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

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

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

THANK YOU