Cleaning system for a combine harvester including electromagnetically driven sieves

A cleaning system for a combine harvester includes a sieve for capturing grain, and a magnetic propulsion system configured to move the sieve in a reciprocating motion with respect to a stationary housing of the combine harvester. The magnetic propulsion system includes a magnet that moves as the si...

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Bibliographic Details
Main Authors Hillen, Curtis Frederick, Turner, Daniel Thomas
Format Patent
LanguageEnglish
Published 03.11.2020
Subjects
AGRICULTURE
ANIMAL HUSBANDRY
DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
FISHING
FORESTRY
HAY OR STRAW PRESSES
HUMAN NECESSITIES
HUNTING
PROCESSING OF HARVESTED PRODUCE
TRAPPING
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Summary:A cleaning system for a combine harvester includes a sieve for capturing grain, and a magnetic propulsion system configured to move the sieve in a reciprocating motion with respect to a stationary housing of the combine harvester. The magnetic propulsion system includes a magnet that moves as the sieve moves and a plurality of electromagnets arranged along a path of movement of the magnet during a throw stroke and a return stroke of the sieve. During the throw stroke, the plurality of electromagnets may be one of attracted to and repulsed by the magnet. During the return stroke, the plurality of electromagnets may be another of attracted to and repulsed by the magnet. The magnet may move along an arc, and the plurality of magnet may be arranged along an arc adjacent to the magnet.
Bibliography:Application Number: US201815985945