Silage Harvester(redirected from Forage harvester)
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a machine that combines the operations of cutting and chopping agricultural crops that are to be ensiled and loading the crops into transport vehicles. A silage harvester can also be used to prepare haylage, green topdress-ing, and grass meal.
The cutting mechanism of the silage harvester severs the stalks and a reel places them on a feed conveyor, which transports them to the upper and lower rollers of the feed apparatus. The rollers seize the stalks, compress them, and push them onto the shear plate of a chopping mechanism. A knife drum paired with the shear plate cuts off sections of the stalks, which fall onto a conveyor. The conveyor unloads the chopped material into transport vehicles.
|Table 1. Specifications for silage harvesters manufactured in the USSR|
|Swath width (m) .............||2.6||2.6||1.8|
|Cutting height (mm)...........||80–150||150–200||60–200|
|Length of cut section (mm) ......||20||20–30||10–60|
|Tractor models used ..........||MTZ-80|
The USSR produces trailer and self-propelled silage harvesters; the latter are used for work on very wet soils. The harvester is controlled by the tractor driver or the harvester operator (for self-propelled models). Silage harvesters used abroad operate in a similar manner.