If you’ve ever wondered how a combine harvester works, you’re not alone. There are several components to these massive machines, each one with a specific job. In general, combine harvesters cut crops and feed them into a threshing drum. This separates the grains from the stalks and sweeps the chaff to the back of the combine. Once full, the grain is transported to the trailer, while the chaff goes back into the field for animal bedding.
First, the threshing cylinder rubs the grain across its concave surface. Some of it falls through the straw deck, while others are directed to the cleaning shoe. The cleaning shoe blows a burst of air through the chaff to separate it from the grain. The grain then falls into a clean grain auger. It is then conveyed to the storage tank or elevator for further processing. The residue is discharged from the back of the combine.
Next, the combines blows air over the collection area to remove the lightweight items. The remaining material is largely grains, while the trailings are recycled back into the combine. In addition, grain elevators are used to lift the grain from the bottom of the combine into the grain tank. In addition to the elevator, the grain auger moves the grains into a grain cart that is pulled by a tractor. When the combine is finished, it is ready to be moved to another field.
The combine uses different kinds of heads to process crops. The grain platform, known as the header, has a reciprocating knife cutter bar. The blades are made of plastic or metal teeth. The cutting crop falls on the platform header and is sucked into the machine’s throat. Then, the crop goes through the threshing drum. The grain is separated from the stalks by a series of vertical teeth.
In addition to the header, the combine has two other components. A threshing head is used to separate grain from the stalks. Once the corn is cut, the threshing part separates the grain from the stalks. The remaining material is known as residue or chaff. The combine head also contains a cleaning mechanism. These steps are all done by machine to ensure that the crops are safe and healthy.
Before the use of a threshing auger, harvesting grapes required a whole family of workers. But, with the help of a combine, one man can do this job in seconds. Agriculture has come a long way from the early 1800s, when harvesting grapes required beating the stalks with a flail and cutting them with a scythe. Afterwards, the kernels were separated from the chaff with winnowing.
The first self-propelled combines were invented in 1935 by Hiram Moore, who had developed the machine. Early combines were horse-drawn or pulled behind a tractor. In the mid-20th century, these combines were self-propelled and were fitted with on-board electronics that measured the operation and yield. Today, there are more than two dozen models of combines on the market, and you can learn all about them in this article.
The first combines were plagued by problems like tipping over on steep hills. A fifteen-ton combine could easily topple over, leading to a potentially fatal fire. Additionally, picking up a fallen combine is difficult and dangerous. That’s why combines were developed with a tilting mechanism, or hillsides. It’s not hard to imagine the impact on everyday life without the combined effort of farmers and combine operators.
In 1925, Massey-Harris and International Harvester shipped pull-type combines to the Dominion Experimental Farm in Swift Current, Saskatchewan. Once tested there, these machines were sold to farmers in southwestern Saskatchewan. After the war, Massey-Harris and J.I. Case both marketed these combines. The company’s name stuck and became synonymous with quality combines. If you’ve ever wondered how a combine works, you’ll appreciate this article!