A harvesting apparatus for harvesting cereal grains, rice, grains or seeds, is operated as a front, side or rear attachment and has a crop stripper extending over a working width which is generating a rotor air stream, an inclined chute having a first edge facing the crop stripper and a second edge facing away from the crop stripper. The second edge is disposed to lie lower than the first edge facing the crop stripper and is attached between a threshing apparatus and a separation apparatus which extend over the predominant or the entire part of the working width. The harvesting apparatus has a cleaning air channel, wherein air from a fan and the crop stripper rotor air stream flow through the cleaning air channel for cleaning the crop. The cleaning air channel extends over the predominant part or the entirety of the working width.

A harvesting apparatus for harvesting cereal grains, rice, grains or seeds, is operated as a front, side or rear attachment and has a crop stripper extending over a working width which is generating a rotor air stream, an inclined chute having a first edge facing the crop stripper and a second edge facing away from the crop stripper. The second edge is disposed to lie lower than the first edge facing the crop stripper and is attached between a threshing apparatus and a separation apparatus which extend over the predominant or the entire part of the working width. The harvesting apparatus has a cleaning air channel, wherein air from a fan and the crop stripper rotor air stream flow through the cleaning air channel for cleaning the crop. The cleaning air channel extends over the predominant part or the entirety of the working width.

A combine includes a sorter 2B including a sieve case 23 drivable to swing; a first chaff sieve 27 held by the sieve case 23 and configured to receive a processing target falling through a receiver net 8 and sort the processing target; a second chaff sieve 28 held by the sieve case 23 in such a manner as to coincide with the first chaff sieve 27 in the front-back direction relative to the sorter 2B and configured to receive a processing target falling through the first chaff sieve 27 and sort the processing target; and a winnowing fan 29 configured to blow sorting air along the first and second chaff sieves 27 and 28.

A combine includes a sorter 2B including a sieve case 23 drivable to swing; a first chaff sieve 27 held by the sieve case 23 and configured to receive a processing target falling through a receiver net 8 and sort the processing target; a second chaff sieve 28 held by the sieve case 23 in such a manner as to coincide with the first chaff sieve 27 in the front-back direction relative to the sorter 2B and configured to receive a processing target falling through the first chaff sieve 27 and sort the processing target; and a winnowing fan 29 configured to blow sorting air along the first and second chaff sieves 27 and 28.

A combine harvester includes a housing having a rear hood and defining an interior, a blower for generating an air stream in a substantially rearward direction, and a cleaning system separating residue from a crop material such that the residue is transported via the air stream rearwardly to be discharged from the housing. A chopper rotor assembly is disposed within the interior below the rear hood and includes a chopper rotor having a plurality of blades for chopping the residue as it is received via the air stream. A chopper housing is disposed within the interior and includes a roof structure located above the chopper rotor such that a minimal gap is defined therebetween. The air stream flows out of the interior via a flow path defined through the chopper rotor without being substantially redirected from flowing in the rearward direction by the plurality of blades of the chopper rotor.

A combine harvester includes a housing having a rear hood and defining an interior, a blower for generating an air stream in a substantially rearward direction, and a cleaning system separating residue from a crop material such that the residue is transported via the air stream rearwardly to be discharged from the housing. A chopper rotor assembly is disposed within the interior below the rear hood and includes a chopper rotor having a plurality of blades for chopping the residue as it is received via the air stream. A chopper housing is disposed within the interior and includes a roof structure located above the chopper rotor such that a minimal gap is defined therebetween. The air stream flows out of the interior via a flow path defined through the chopper rotor without being substantially redirected from flowing in the rearward direction by the plurality of blades of the chopper rotor.

An agricultural grain cleaner includes an inlet chute having an inlet end and an outlet end positioned below the inlet end. A crop distribution member is positioned adjacent the outlet end of the inlet chute. The crop distribution member includes a distribution disc rotatable relative to the inlet chute about a vertical central axis to impart a horizontal trajectory, away from the central axis, to crop material supplied to the distribution disc from the inlet chute. A fan is operable to generate an air stream from below the crop distribution member, across the horizontal trajectory, to an air-chaff outlet. A grain collection chute has an inlet to receive grain that is cleaned of chaff by the air stream. A tailings collection chute is positioned adjacent to the grain collection chute on a radially inner side thereof.

An agricultural grain cleaner includes an inlet chute having an inlet end and an outlet end positioned below the inlet end. A crop distribution member is positioned adjacent the outlet end of the inlet chute. The crop distribution member includes a distribution disc rotatable relative to the inlet chute about a vertical central axis to impart a horizontal trajectory, away from the central axis, to crop material supplied to the distribution disc from the inlet chute. A fan is operable to generate an air stream from below the crop distribution member, across the horizontal trajectory, to an air-chaff outlet. A grain collection chute has an inlet to receive grain that is cleaned of chaff by the air stream. A tailings collection chute is positioned adjacent to the grain collection chute on a radially inner side thereof.

A combine harvester self-adaptive cleaning control apparatus, includes a return plate, a cleaning sieve, a cleaning centrifugal blower, an impurity collection and stirring auger, a grain collection and stirring auger, a cleaning grain loss monitoring sensor, a grain tank grain impurity rate automatic monitoring apparatus, and an on-line monitoring and control system. The on-line monitoring and control system is connected to the cleaning centrifugal blower, the cleaning grain loss monitoring sensor, the grain tank grain impurity rate automatic monitoring apparatus, and a power driving mechanism of a louver sieve having an adjustable opening. Also disclosed is a self-adaptive cleaning method of the cleaning apparatus which can automatically adjust various working parameters according to a working quality of a working process, control failure rate, and improve a down-time working time for the apparatus.

A combine harvester self-adaptive cleaning control apparatus, includes a return plate, a cleaning sieve, a cleaning centrifugal blower, an impurity collection and stirring auger, a grain collection and stirring auger, a cleaning grain loss monitoring sensor, a grain tank grain impurity rate automatic monitoring apparatus, and an on-line monitoring and control system. The on-line monitoring and control system is connected to the cleaning centrifugal blower, the cleaning grain loss monitoring sensor, the grain tank grain impurity rate automatic monitoring apparatus, and a power driving mechanism of a louver sieve having an adjustable opening. Also disclosed is a self-adaptive cleaning method of the cleaning apparatus which can automatically adjust various working parameters according to a working quality of a working process, control failure rate, and improve a down-time working time for the apparatus.