Combine harvester grain cleaners
AssigneeCNH Industrial America LLC
InventorRaf De Smet
Life of this patent
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Abstract
A combine harvester grain cleaner. The grain cleaner includes an upper, relatively moveable framework supporting one or more grain sieves, one or more sources of drive for causing reciprocating movement of the one or more grain sieves, a lower, relatively fixed framework supporting one or more grain or tailings sheets, and a vibrator connected to the one or more grain and tailings sheets for causing a vibratory motion thereof and for, through the vibratory motion, causing movement of grain thereon in a predetermined direction. The vibratory motion has a higher frequency than a frequency of the reciprocation of the one or more grain sieves.
Claims17
A grain cleaner for a combine harvester, the grain cleaner comprising:
- an upper, relatively moveable framework supporting one or more grain sieves;
- one or more sources of drive for causing reciprocating movement of the one or more grain sieves;
- a lower, relatively fixed framework supporting one or more grain or tailings sheets and the lower, relatively fixed framework defines upstanding, mutually spaced lower framework walls, and the one or more grain or tailings sheets interconnects the lower framework walls;
- and
- a vibrator connected to the one or more grain and tailings sheets for causing a vibratory motion thereof and for, through the vibratory motion, causing movement of grain thereon in a predetermined direction, the vibratory motion having a higher frequency than a frequency of the reciprocation of the one or more grain sieves.
A harvester comprising:
- a threshing section;
- a main frame;
- and
- a grain cleaner comprising:
- an upper, relatively moveable framework supporting one or more grain sieves;
- one or more sources of drive for causing reciprocating movement of the one or more grain sieves;
- a lower, relatively fixed framework supporting one or more grain or tailings sheets, the lower, relatively fixed framework attached to the main frame, and the lower, relatively fixed framework defines upstanding, mutually spaced lower framework walls, and the one or more grain or tailings sheets interconnects the lower framework walls;
- and
- a vibrator connected to the one or more grain and tailings sheets for causing a vibratory motion thereof and for, through the vibratory motion, causing movement of grain thereon in a predetermined direction, the vibratory motion having a higher frequency than a frequency of the reciprocation of the one or more grain sieves.
Dependencies are inferred from the claim text.