The main purpose of this presentation is give knowledge and mechanism and also parts of combine harvester. When we are Agricultural engineers and then combine harvester is very important for us.

1. COMBINE
HARVESTER
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2. PRESSENTED TO : Sir IRSHAD ALI MARI
DEPARTMENT : FARM POWER MACHINERY
SUBJECT : LAND DEVELOPMENT MACHINERY (FPM-602)
PRESSENTED BY :
BILAL AHMED MIRANI : 2K15-AE(K)-12
CLASS: FINAL PROFESSIONAL B.E (2nd TERM)
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3. Table Of Content Page
1. Introduction 04-17
2. Material and Methods 18-42
3. Conclusion 43
4. References 44
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4. Introduction of Harvesting
 Harvesting is the process of gathering a ripe crop from the fields. Reaping is the
cutting of grain or pulse for harvest, typically using a scythe, sickle, or reaper.
 On smaller farms with minimal mechanization, harvesting is the most labour
intensive activity of the growing season.
 On large mechanized farms, harvesting utilizes the most expensive and
sophisticated farm machinery, such as the combine harvester.
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5. On Small Farms Equipment's for
Cutting
Manual Reaper
Sickle
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6. Threshing Methods on Small Farm
Labour Method Thresher Machine
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7. Process Of Harvesting
Harvesting is the process of collecting the mature rice crop from the field.
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• Cutting: cutting the panicles and straw.
• Hauling: moving the cut crop to the threshing location.
• Threshing: separating the paddy grain from the rest of the cut crop.
• Cleaning: removing immature, unfilled and non-grain materials.
• Field drying: (optional) leaving the cut crop in the field and exposing it to the sun for
drying.
• Stacking / Piling: (optional) temporarily storing the harvested crop in stacks or piles.

8. Process of Harvesting 8

9. Combine Harvester?
 Combine Harvester is a machine which harvests the grain crops by
comprising the three separate operation activities of harvesting.
Those are:
1. Reaping { Harvesting }
2. Threshing
3. Winnowing
these above 3 operations are combined to form a single process in the
combine harvester.
 Combine harvesters got their name from their combining of three separate
operations (reaping, threshing, and winnowing) into a single process.
Combine harvesters are one of the most economically important labour
saving inventions.
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10. COMBINE HARVESTER IS USED FOR WHICH
CROPS?
 This is used for the crops whose seeds or edible part is at the top of the
plant (grains) and the below part which is discarded or left in the field as it
is inedible (chaff).
 Crops like : Paddy, wheat, oats, barley, corn, rye, sorghum, linseed,
sunflower, canola and soybean.
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11. History
 Scottish inventor Patrick Bell invented the reaper in 1826. The combine was
invented in the United States by Hiram Moore in 1834. Early versions were
pulled by horse teams, mule teams, or ox. In 1835, Moore built a full-scale
version. By 1860, combine harvesters with a cutting width of several meters
were used on American farms. In 1882, Hugh Victor McKay, from Australia,
had a similar idea and developed the first commercial combine harvester
in 1885, called the Sunshine Harvester
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12. Combine Harvester Differentiate
According to:
1. Sources of Power:
a. Self-propelled type
b. PTO operated type/ mount type
2. Movement
a. Wheel Type
b. Crawler Type
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13. 13

14. PTO OPERATED TYPE/ MOUNT TYPE 14

15. Wheel Type 15

16. Crawler Type 16

17. Function of combine harvester:
 Feeding the standing crops to the cutter bar with the help of reel
 Cutting the crop(harvesting)
 Feeding the crop to threshing unit
 Threshing the crop
 Separating the husk from grains
 Cleaning the grains
 Conveying and storing the grains
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18. Requirement of a perfect Combine
Harvester
 There should be less broken of grains
 No grains losses on the ground at the cutter bar end
 No grain losses at the back end of the harvesting unit
 No unthrashed grain
 Proper threshing of grains without any injury
 It should give clean grains
 Machine should be capable of operation on crop even with higher moisture content
 Machine should be capable of working on various crops
 Ease of operation
 More output with safety measures
 Easy to maintain
 Less consumption of spares and fuels
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19. Objectives
 To study about the combine Harvester
 To investigate the all parts of Combine Harvester
 To describe functions of Combine Harvester
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20. Material and
Methods
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21. HOW DOES IT WORKS ? 21

22. STANDING CROP
 Crops are gathered in by the header at the front, which has a pair of sharp
pincers called crop dividers at either end.
 The wider the header, the faster and more efficiently a harvester can cut a
field.
 Different headers are used for cutting different crops
 The header is often hydraulically powered and can be raised, lowered, and
angled in different ways from the cab.
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23. REEL { PICKUP REEL }
 This is the first part to touch the standing grain, it holds the grain against
the knife.
 It is a slowly rotating wheel pushes the crops down toward the cutter.
 The reel has horizontal bars called bats and vertical teeth or tines to grip
the plant stalks.
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24. Reel or Pickup Reel 24

25. Cutter Bar
 Cutter bar runs the entire length of the header underneath the reel.
 Its teeth (sometimes called mowing fingers) open and close repeatedly to
cut off the crops at their base along a ground level.
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26. Cutter Bar 26

27. CONVEYER
 Behind the cutter bar, the cut crops are fed toward the center by spinning
augurs (screws) and travel up a conveyor to the processing mechanism
inside the main part of the combine.
 It simply does the lifting mechanism of the chaffed plant towards the
threshing unit.
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28. Conveyer 28

29. Threshing Unit
 A threshing drum beats the cut crops to break and shake the grains away
from their stalks.
 Threshing removes the grain or seed from the head or pod.
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30. Threshing Unit 30

31. Sieves
 The crop or threshed material is made to pass through the sieve or
separator chamber below to this seed collector or storage is present.
 The sieves plates keep on shaking so does a seeds to separate and fall
down through sieves.
 The grains fall through sieves into a collecting tank below.
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32. Sieves 32

33. Straw Walkers
 The straw(unwanted material) passes along conveyors called straw walkers
toward the back of the machine.
 In some machines the straw are passed through the chaffer machine to cut
the inedible part into smaller pieces.
 Then passed to the chaffer extension or straw spreader
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34. Straw Walkers 34

35. Unloader
 When the grain tank is full, a tractor with a trailer on the back pulls
alongside the combine.
 The grain is carried up from the tank by an elevator and shoots out of a
side pipe (sometimes called the unloader) into the trailer.
 The unloader pipe height can be adjusted.
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36. Unloader 36

37. Straw Spreader
 The unwanted straw chaff tumbles from the back of the machine. Some
combines have a rotating spreader mechanism that throws the straw over
a wide area.
 Sometimes the straw is baled up by a baling machine and used for animal
bedding.
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38. Spreader 38

39. BEFORE OPERATING COMBINE
HARVESTER
 Before operating the combine harvester in field we should check the
followings in the field:
 Field condition
 Crop condition
 Moisture content
 Height of cutting
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40. PADDY COMBINE HARVESTER 40

41. SUGARCANE COMBINE HARVESTER 41

42. SOYBEAN COMBINE HARVESTER 42

43. MAIZE COMBINE HARVESTER 43

44. MANUFACTURING COMPANIES OF
COMBINE
HARVESTERS
 TAFE
 MAHINDRA
 JOHN DEERE
 FORCE MOTORS
 RENAULT SONALIKA INTERNATIONAL
 SWARAJ
 EICHER MOTORS
 STANDARD
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45. Conclusion
 Combine harvester change the view of harvesting, In ancient time
harvesting method on a large farm consume time, increase cost on labour
and machines of harvesting and decrease the ratio of harvesting grains.
Because of combine harvester we not only save the grains but also save
time and labour and machine cost.
 It means that not only combine save our time but also gives as all benefits
of harvesting.
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46. REFRENCES
 www.knowledgebank.irri.org/ericeproduction/Powerpoints/Mod_2_Harvest
ing.ppt
 https://www.slideshare.net/ritheshrithu77/combined-harvester
 https://www.slideshare.net/agriyouthnepal/combine-harvester
 https://en.wikipedia.org/wiki/Harvest
 https://aghires.com/first-commercial-combine-harvester-developed-1885/
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