What is combine in agriculture

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The modern combine harvester, or simply combine, is a versatile machine designed to efficiently harvest a variety of grain crops. The name derives from its combining four separate harvesting operations—reaping, threshing, gathering, and winnowing—into a single process.

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Answer

What is a Combine which is used in agriculture?

combine, also called combine harvester, complex farm machine that both cuts and threshes grains and certain other crops. Combines are used in the harvesting and cleaning of cereals such as wheat, barley, corn (maize), oats, rice, rye, and sorghum, as well as a number of non-grain crops, including flax, rapeseed, soybeans, and sunflower seeds.

Who makes the best combine?

Who makes the most reliable combine?

  • John Deere.
  • Case International Harvester.
  • New Holland.
  • Massey Ferguson.

Who makes small combines?

  • Ransomes – initial imported Bolinder-Munktell trailed combines to UK in 1953
  • Rector (Argentina)
  • Rotania (Argentina)
  • RyCSA (Argentina)

What is a farm combine?

Unlike conventionally diesel-powered tractors, electric farm tractors are run by battery. These tractors offer a wide range of benefits over conventional tractors, such as better efficiency and enhanced productivity in the agricultural field.

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What is combine process?

Combining process is an operation focusing on a single feature i.e. to upgrade the fiber in textile manufacturing process. This is only done to upgrade the raw materials quality. The silver obtained from the card is processed to improve its quality through combining.


Why do farmers use combines?

The combine harvester saves the farmers time and labor. Before modern machinery, harvesting crops was a painstaking process. Gathering and removing mature plants from the field had to be done by hand. Farm workers used sharp-bladed, long-handled scythes and curved sickles to cut down cereal crops like wheat.


Why is a combine called a combine?

The name combine derives from combining three separate harvesting processes. Reaping, threshing, winnowing – combining all three operations into one led to the invention of the combine harvester, simply known as the combine.


What is meant by combined harvest?

Combine harvesting combines several operations into one: cutting the crop, feeding it into threshing mechanism, threshing, cleaning, and discharging rain into a bulk wagon or directly into a bags. Straw is usually discharged behind the combine in a windrow.


What is the use of combine?

Combines are used in the harvesting and cleaning of cereals such as wheat, barley, corn (maize), oats, rice, rye, and sorghum, as well as a number of non-grain crops, including flax, rapeseed, soybeans, and sunflower seeds.


Is a combine a type of tractor?

A combine, or combine harvester, is a specific type of tractor used for harvesting. This important machine performs 3 functions- reaping, threshing and cleaning which allows grain crops to be harvested more quickly and efficiently, and allows farmers to harvest more grain!


What is a combine class 8?

Answer: A combine is a huge machine used for harvesting and threshing crops.


How much is a combine?

Most new John Deere combines are priced from $380,000 to $480,000, said Michael Cessna, a sales representative for the Arends-Hogan-Walker (AHW) dealership east of Urbana. With add-on features, farmers might be looking at $500,000 for a combine, “but you could get up to $600,000 real easy,” Cessna said.


How wide is a combine?

Length: 26 feet. Width: 11 feet 8 inches. Height: 11 feet 8 inches. To haul your inoperable combine to its next workstation, call Tye at Tractor Transport directly.


What are the parts of combine harvester?

Made up of about 21 parts including the header, reel, cutter bar, sieves, rotating blades, grain tank, unloading pipe, augers, conveyors, belts, layers, wheels and much more, this agricultural implement can be used to harvest, winnow and thresh crops like rice, corn, wheat, sunflower, pulses, barley, flax and soybeans.


What is the difference between a harvester and a combine?

A combine harvester is similar to a forage harvester in that it efficiently harvests a variety of crops. However, the key difference here is that they aren’t being used to produce silage. Instead, combine harvester reap, thresh, gather, and winnow crops in one single process.


Is the combine harvester still used today?

In 1952 Claeys launched the first self-propelled combine harvester in Europe; in 1953, the European manufacturer Claas developed a self-propelled combine harvester named ‘Hercules’, it could harvest up to 5 tons of wheat a day. This newer kind of combine is still in use and is powered by diesel or gasoline engines.


How did the combine make harvesting more efficient?

The combine could travel faster than a header because the horses pulled instead of pushed (Keith). They walked in front of the thresher portion, the wheat was to the side of them (Doty). The combine could harvest 40 acres a day instead of a couple hundred a season that the thresher could produce (Schillinger).


How does a combine work for wheat?

After gathering crops, the combine cuts them at the base, feeds them into a threshing drum that shakes the grains away from their stalks and sweeps the unwanted material to the back of the machine.


How did combine harvesters change agriculture?

Prior to the arrival of this equipment, farmers would carry out harvesting manually . This was a cumbersome process and needed a lot of time and manpower. The labor needs would increase with the increase in the size of the farm. The combine harvester changed this all. Farmers could now finish harvesting much earlier using a fraction of the manpower they used before. They were also able to save time, improve the yield, and thus make more money.


What is combine harvester?

The combine harvester is a piece of farming equipment that has automated the process of harvesting. The use of combine harvester in harvesting has helped in automating three activities related to harvesting. Reaping, winnowing, and threshing are three harvesting related activities that were done manually. The combine harvester now makes it easy for a farmer to carry out these activities faster and more efficiently.


Why is a harvester important?

The harvester makes harvesting easy and saves time and effort. The equipment is helpful in increasing the yield of crops. Most importantly, it can help in improving the quality of the yield.


What is a tractor combine?

Tractor -drawn combines (also called pull-type combines ) became common after World War II as many farms began to use tractors. An example was the All-Crop Harvester series. These combines used a shaker to separate the grain from the chaff and straw-walkers (grates with small teeth on an eccentric shaft) to eject the straw while retaining the grain. Early tractor-drawn combines were usually powered by a separate gasoline engine, while later models were PTO -powered, via a shaft transferring tractor engine power to operate the combine. These machines either put the harvested crop into bags that were then loaded onto a wagon or truck, or had a small bin that stored the grain until it was transferred via a chute.


How does a combine work?

The cut crop is carried up the feeder throat (commonly called the “feederhouse”), by a chain and flight elevator, then fed into the threshing mechanism of the combine, consisting of a rotating threshing drum (commonly called the “cylinder”), to which grooved steel bars (rasp bars) are bolted. The rasp bars thresh or separate the grains and chaff from the straw through the action of the cylinder against the concave, a shaped “half drum”, also fitted with steel bars and a meshed grill, through which grain, chaff and smaller debris may fall, whereas the straw, being too long, is carried through onto the straw walkers. This action is also allowed because grain is heavier than straw, which causes it to fall rather than “float” across from the cylinder/concave to the walkers. The drum speed is variably adjustable on most machines, whilst the distance between the drum and concave is finely adjustable fore, aft and together, to achieve optimum separation and output. Manually engaged disawning plates are usually fitted to the concave. These provide extra friction to remove the awns from barley crops. After the primary separation at the cylinder, the clean grain falls through the concave and to the shoe, which contains the chaffer and sieves. The shoe is common to both conventional combines and rotary combines.


How many acres were harvested from the 1839 combine harvester?

In 1835, Moore built a full-scale version with a length of 5.2 m (17 ft) and a cut width of 4.57 m (15 ft); by 1839, over 20 ha (50 acres) of crops were harvested. This combine harvester was pulled by 20 horses fully handled by farmhands. By 1860, combine harvesters with a cutting, …


What is a combine harvester?

The modern combine harvester, or simply combine, is a versatile machine designed to efficiently harvest a variety of grain crops. The name derives from its combining four separate harvesting operations— reaping, threshing, gathering, and winnowing —into a single process. Among the crops harvested with a combine are wheat, rice, oats, rye, barley, corn ( maize ), sorghum, soybeans, flax ( linseed ), sunflowers and rapeseed. The separated straw, left lying on the field, comprises the stems and any remaining leaves of the crop with limited nutrients left in it: the straw is then either chopped, spread on the field and ploughed back in or baled for bedding and limited-feed for livestock. Combine harvesters are one of the most economically important labour-saving inventions, significantly reducing the fraction of the population engaged in agriculture.


When was the first self-propelled combine harvester invented?

In 1952 Claeys launched the first self-propelled combine harvester in Europe; in 1953, the European manufacturer Claas developed a self-propelled combine harvester named ‘ Hercules ‘, it could harvest up to 5 tons of wheat a day. This newer kind of combine is still in use and is powered by diesel or gasoline engines.


When did Sperry New Holland TR70 Twin Rotor combine come out?

Since the Sperry-New Holland TR70 Twin-Rotor Combine came out in 1975, most manufacturers have combines with rotors in place of conventional cylinders. However, makers have now returned to the market with conventional models alongside their rotary line-up. A rotor is a long, longitudinally mounted rotating cylinder with plates similar to rub bars (except for in the above-mentioned Gleaner rotaries).


How many horsepower does a Class 11 combine have?

The largest “class 11” combines today have nearly 800 engine horsepower (600 kW) and are fitted with headers up to 60 feet (18 m) wide.


What is a combine?

The combine, short for combine harvester, is an essential and complex machine designed for efficient harvesting of mass quantities of grain. Modern combines can cut a swath through a field more than 40 feet wide. The name comes from combining three essential harvest functions – reaping, threshing and winnowing.


When was the combine invented?

Hiram Moore patented the first U.S. combine in 1935. Early versions were horse-drawn, followed by models that were pulled behind a tractor. The mid-twentieth century saw the introduction of the self-propelled combine, and by the 1980s they began to come equipped with on-board electronics to measure operation and yield data.


What is the name of the grain that is harvested with a head?

The name comes from combining three essential harvest functions – reaping, threshing and winnowing. Corn, soybeans, wheat, oats, rye, barley, sorghum, flax, sunflowers and canola can all be harvested with a head designed for that particular grain. Hiram Moore patented the first U.S. combine in 1935. Early versions were horse-drawn, followed by …


What is a combine platform?

Combines come with essentially two types of grain platforms. The traditional platform features an auger with a steel floor. The draper platform uses a belt to feed the plant into the combine to separate the grain. A flex draper uses flex cutterbars that self-adjust as the head passes over uneven ground or small obstacles.


What are the challenges of harvesting downed corn?

Weather damage to crops can add to harvest challenges. There are tricks to harvesting downed corn, but first the farmer should determine if the crop is worth salvaging or if the loss is too great. The most important factor in any harvest is safety. Know the crop, know the equipment, and know the operator’s limits.


What causes corn to lose grain?

Worn corn heads are one of the leading causes of grain loss, as much as 60% according to a recent study by Iowa State University. Proper adjustment and maintenance can minimize that impact and improve corn harvesting. A sound pre-season inspection should include gathering chain tension, free-moving deck plates, a well-working drive system and an assessment of stalk roller condition. Stalks of today’s corn varieties are tougher than in the past and combines travel at faster speeds, causing more stress to combine header parts.


Is a combine a good buy?

Coming off a string of lean sales years, machinery dealers are ready to bargain, and combines can be one of the best buys around.


How does a combine work?

The Anatomy of a Combine 1 The header cuts off the plant close to the ground and moves the whole plant into the machine. Farmers switch out the header depending on if they are harvesting corn, soybeans or other crops. 2 The cut crops move toward the center via spinning augers and travel up a conveyor. 3 The threshing segment of the combine beats the cut crops to break and shake the grains away from their stalks. 4 The separated grains travel by conveyor into a grain tank. The unwanted stalks, husks, cobs and/or bits of leaves – known as chaff or residue – move along different conveyors, as more grain falls through into the tank. 5 When the grain tank is full, a tractor with a grain cart 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, or unloader, into the grain cart. 6 The residue exits the back of the machine to either be spread across a wide area or baled as straw to use for animal bedding. Most machines use a straw chopper to make it smaller and more manageable.


How do combine harvesters get their name?

Combine harvesters get their name from the way they automatically combine the processes of harvesting and separating of grain crops into one step, an otherwise laborious series of operations once done separately. It can harvest crops like corn, wheat, soybeans, rye, barley and oats.


What is residue in a combine?

The unwanted stalks, husks, cobs and/or bits of leaves – known as chaff or residue – move along different conveyors, as more grain falls through into the tank. When the grain tank is full, a tractor with a grain cart on the back pulls alongside the combine.


How is grain transported from a tank?

The grain is carried up from the tank by an elevator and shoots out of a side pipe, or unloader, into the grain cart. The residue exits the back of the machine to either be spread across a wide area or baled as straw to use for animal bedding. Most machines use a straw chopper to make it smaller and more manageable.


What is a multi crop harvester?

A multi-crop harvester allows harvesting of various grain crops. Different detachable heads are used in a combine machine for the various types of grain crops.


Is it possible to farm without machines?

If we picture modern agricultural without machines it will be very difficult as farm machines are an essential part of the agriculture nowadays. In overall machinery used in the agriculture a Combine is the second-largest and heaviest machine after a tractor. Different agriculture equipment are used at various steps from ploughing to harvesting simplify the farming processes. Harvesting is crucial, longest and complex task of all farming processes and needs to be done very carefully. Any kind of fault in the process can cause the loss of the grains.


What is a combine harvester?

A Combine Harvester also known as Combine or a Thresher ia a very effective Agricultural Machine that executes the tasks of harvesting, threshing and cleaning variety of crops. The history of harvesting combines goes back to 500 B.C. and that time wooden implements were used.


What is a pull type harvesting combine?

Pull Type harvesting combines are also known as Tractor Pull Combines or Tractor Combines. The machine is pulled by a farm tractor and at the same time, power needs for thrashing, cutting, separting and cleaning is taken from P.T.O shaft of the tractor. These combine harvesters are being used in various places depending on the needs.


Why is the bed grain separated from the chaff?

The bed grain is separated friom chaff due to vibrations and short straw is carried to the chaffer rack. When grains, chaff and short straw are being dropped from the chaffer rack, air is directed from the blower which blows the chaff and short straw away from combine.


What is the gap between a concave and a drum?

The gap between concave and drum can easily be increased or decreased. For concave there are 2 adjustments, one is instantaneous which brings the basket close to thrashing drum and other is fine adjustment. A debrading sheet is placed on the first 2 rows of concave. It is operated from outside.


What is a self propelled harvester combine?

Self propelled harvester combine is self contained unit with an engine over it. The engine power is divided into 2 parts i.e. for driving the machine and the other for harvesting related operations.


What is the machine used to harvest crops called?

This machine using which all the operations connected with harvesting of crops are done is called harvesting combine. The operations are listed below:


How does a standing crop work?

The standing crop is guided to the cutter mechanism by reel. The dividers are also supplied to divide the crop which comes to the machine and the remaining part standing in the field is slightly pushed apart so that is saved from the damage by machine.


What is inside a combine harvester?

There’s an awful lot going on inside a combine harvester— gears , blades, augers (screws that move cut crops), conveyors, belts, levers, and wheels —so I’ve vastly simplified everything to make it easier to follow. Roughly speaking, here’s how a combine harvester works:


How does a combine harvester work?

Roughly speaking, here’s how a combine harvester works: Cereal crops are gathered in by the header at the front, which has a pair of sharp pincers called crop dividers at either end. Generally speaking, the wider the header, the faster and more efficiently a harvester can cut a field.


What is a John Deere harvester?

Here’s a John Deere cotton harvester, which is like a cross between a combine harvester (at the front) and a hay bailer (at the back). Instead of spewing out grain and chaff, this machine squeezes and bundles the cotton into giant round bales (called “modules”) and wraps them in protective plastic. When a bale is ready, the machine’s hydraulic back lifts up to dump it onto the field behind.


How many pages are in the combine harvester?

The Combine Harvester by Jonathan Whitlam, Amberley Publishing, 2018. A comprehensive, 96-page history, from early tractor-pulled harvesters to the latest giant machines.


How did farmers harvest crops?

Before modern-day machines were developed, agricultural workers had to harvest crops by carrying out a series of laborious operations one after another. First they had to cut down the plants with a long-handled cutting tool such as a scythe. Next, they had to separate the edible grain from the inedible chaff by beating the cut stalks —an operation known as threshing. Finally, they had to clean any remaining debris away from the seeds to make them suitable for use in a mill. All this took a lot of time and a lot of people.


How are cut crops fed?

Behind the cutter bar, the cut crops are fed toward the center by spinning augers (screws) and travel up a conveyor to the processing mechanism inside the main part of the combine. A threshing drum beats the cut crops to break and shake the grains away from their stalks.


What is a good place to start when looking for a combine?

If you’re looking for a really detailed description of how a combine works, patents are a good place to begin. Here are a couple you might find useful:

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Overview

The modern combine harvester, or simply combine, is a versatile machine designed to efficiently harvest a variety of grain crops. The name derives from its combining four separate harvesting operations—reaping, threshing, gathering, and winnowing—into a single process. Among the crops harvested with a combine are wheat, rice, oats, rye, barley, corn (maize), sorghum, soybeans, flax (lin…


History

In 1826 in Scotland, the inventor Reverend Patrick Bell designed (but did not patent) a reaper machine, which used the scissors principle of plant cutting; a principle that is still used today. The Bell machine was pushed by horses. A few Bell machines were available in the United States. In 1835, in the United States, Hiram Moore built and patented the first combine harvester, which was capabl…


Combine header

Combines are equipped with removable header that are designed for particular crops. The standard header, sometimes called a grain platform, is equipped with a reciprocating knife cutter bar, and features a revolving reel with metal teeth to cause the cut crop to fall into the auger once it is cut. A variation of the platform, a “flex” platform, is similar but has a cutter bar that can flex over contours and ridges to cut soybeans that have pods close to the ground. A flex head can cu…


Conventional combine

The cut crop is carried up the feeder throat (commonly called the “feederhouse”), by a chain and flight elevator, then fed into the threshing mechanism of the combine, consisting of a rotating threshing drum (commonly called the “cylinder”), to which grooved steel bars (rasp bars) are bolted. The rasp bars thresh or separate the grains and chaff from the straw through the action of the cylinder against the concave, a shaped “half drum”, also fitted with steel bars and a meshed …


Hillside leveling

In the Palouse region of the Pacific Northwest of the United States the combine is retrofitted with a hydraulic hillside leveling system. This allows the combine to harvest the steep but fertile soil in the region. Hillsides can be as steep as a 50% slope. Gleaner, IH and Case IH, John Deere, and others all have made combines with this hillside leveling system, and local machine shops have fabricated the…


Sidehill leveling

Sidehill combines are very similar to hillside combines in that they level the combine to the ground so that the threshing can be efficiently conducted; however, they have some very distinct differences. Modern hillside combines level around 35% on average, while older machines were closer to 50%. Sidehill combines only level to 18%. They are sparsely used in the Palouse region. Rather, they are used on the gentle rolling slopes of the midwest. Sidehill combines are much m…


Maintaining threshing speed

Another technology that is sometimes used on combines is a continuously variable transmission. This allows the ground speed of the machine to be varied while maintaining a constant engine and threshing speed. It is desirable to keep the threshing speed constant since the machine will typically have been adjusted to operate best at a certain speed.


The threshing process

Despite great advances in mechanics and computer control, the basic operation of the combine harvester has remained unchanged almost since it was invented.
Power requirements over the years have increased due to larger capacities and some processes such as rotary threshing and straw chopping take considerab…

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