Flap openings in a grain harvesting threshing and separation unit
AssigneeCLAAS Selbstfahrende Erntemaschinen GmbH
InventorAndrie Diederich Visagie
Life of this patent
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Abstract
A rotary threshing and separation unit for grain harvesting comprising a rotor housing with a feeding zone, separation zone and discharge zone, sieve at least partially located within the separation zone, rotary driven separation rotor arranged in the rotor housing, fan or blower for generating a main air flow stream moving through at least the separation zone and discharge zone, an auxiliary flow stream, adjustable flaps and grain collecting element arranged below the sieve.
Claims20
A rotary threshing and separation unit for grain harvesting, comprising:
- a housing;
- means for receiving harvested crop and defining a feeding zone;
- a rotary driven threshing and separation rotor arranged in said housing and therewith defining a separation zone;
- a transport mechanism for transporting the harvested crop from the feeding zone to the separation zone;
- means operatively connected to the separation zone for exhausting chaff and defining a discharge zone;
- a sieve located at least partially within the separation zone;
- a grain collecting element arranged below the sieve;
- a fan for generating an air flow stream from at least the separation zone to the discharge zone;
- and
- at least one passage into the housing that communicates with a space between the sieve and grain collecting elements and wherein at least part of the air flow stream is generated from the passage and through the space between the sieve and grain collecting elements towards the fan.
A rotary threshing and separation unit for grain harvesting, comprising:
- a housing;
- means for receiving harvested crop and defining a feeding zone;
- a rotary driven, threshing and separation rotor arranged in said housing and therewith defining a separation zone;
- a transport mechanism for transporting the harvested crop from the feeding zone to the separation zone;
- means operatively connected to the separation zone for exhausting chaff and defining a discharge zone;
- a sieve located at least partially within the separation zone;
- a grain collecting element arranged below the sieve;
- a main fan for generating a main air flow stream from at least the separation zone to the discharge zone, wherein at least part of the air flow stream is generated between the sieve and grain collecting element towards the fan;
- an auxiliary fan for generating an auxiliary air flow stream between the sieve and grain collecting element;
- at least one opening in the housing that is operatively connected with the space between the sieve and grain collecting elements and wherein at least part of the air flow stream flows through the opening and through the space between the sieve and grain collecting elements towards the fan;
- and
- wherein the at least one opening is arranged so that the air flow stream flows in substantially a cross or counter flow direction to that of the grain falling between the sieve and grain collecting element.
Dependencies are inferred from the claim text.