JP2009034057A - Combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a combine harvester which removes dusts or waste straws in tailings return retreatment materials flowed down from a tailings return flow grain board by the wind-sorting of a tailings return sorting wind from a sorting fan, thereby improving tailings return retreatment material-sorting workability. <P>SOLUTION: This combine harvester in which a clean grain conveyer 231, a winnowing fan 228, a tailings conveyer 232, and a sorting fan 241 for supplying tailings return sorting wind are disposed below a shaking sorting board 227, and a chaff-discharging fan 230 for sucking chaffs from the upper side of the shaking sorting board 227 and then discharging the chaffs on the outside of the machine is disposed above the rear end side of the shaking sorting board 227, is characterized by forming the sorting wind blowout port 241b of the sorting fan 241 on the side opposite to the clean grain conveyer 231 through the tailing conveyer 232 and enabling to supply the tailings return sorting wind of the sorting fan 241 from the sorting wind blowout port 241b in a direction crossing the flow of the tailings return retreatment materials flowed down from the tailing conveyer 232. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a combine harvester that harvests unharmed cereals in a field by a reaping device, threshs the harvested cereal by a threshing device, and collects the threshed grains by the threshing device. The present invention relates to a combine that sorts a degranulated product with a rocking sorter, takes out the grain in the degranulated product into a grain tank, and discharges swarf in the degranulated product to the outside of the machine.

  Conventionally, a traveling machine body equipped with an engine, left and right traveling crawlers that support the traveling machine body, a driving unit having a steering handle and a driving seat, a harvesting device that harvests uncut grain culm in a field, and harvested grain And a threshing device for threshing the straw, and continuously harvesting and threshing the uncut cereal straw in the field to collect the grains (see, for example, Patent Document 1).

In this case, in the conventional combine, below the swing sorter, the first conveyor for taking out the first grain, the tang fan that supplies the first sorter to the first conveyor, and the second reduced reprocessed product A takeout second conveyor and a sorting fan for supplying the second sorting air to the second conveyor are arranged. Further, a dust exhaust fan that sucks dust from the upper surface side of the swing sorter and discharges it outside the apparatus is disposed above the rear end side of the swing sorter. The first sorting wind of the Kara fan and the second sorting wind of the sorting fan are supplied to the rocking sorter, and the crushed material sorted by the rocking sorter is wind-selected.
JP 2002-360048 A

  In the conventional technique, as shown in Patent Document 1, when a sorting fan is arranged on the front side of the second conveyor, the second technique is such that the second falling directly on the second conveyor from the Strollac provided on the rear end side of the swing sorter. The second sorting air from the sorting fan can be effectively supplied to the reduced reprocessed product. However, the second sorting wind is discharged from the lower end side of the inclined surface of the second flow cereal plate toward the upper end side along the inclined surface of the second flow cereal plate provided at the bottom of the swing sorting plate at the rear end side. Therefore, the second reduced reprocessed product that has flowed down from the second-flow grain board to the second conveyor is hardly selected by the second-selection wind. That is, the dust or sawdust in the second reduced reprocessed material flowing down from the second-flow grain board is taken out by the second conveyor with almost no removal. There is a problem that the sorting workability of the second reduction reprocessed product cannot be improved.

  The purpose of the present invention is to remove dust or swarf in the second reduced reprocessed product flowing down from the second flow cereal plate by wind selection of the second selected wind from the selection fan, The present invention provides a combine that can improve sorting workability.

  In order to achieve the above object, a combine of an invention according to claim 1 includes a traveling machine body equipped with an engine, left and right traveling crawlers supporting the traveling machine body, a driving unit having a steering handle and a driving seat, A reaping device for reaping uncut cereals, a threshing device for threshing the harvested cereals, and an oscillating sorter for sorting threshed matter from the threshing unit, below the oscillating sorter, A first conveyor for taking out the first grain, a tang fan that supplies the first sorting air above the first conveyor, a second conveyor for taking out the second reduced reprocessed material, and above the second conveyor A sorting fan that supplies the second sorting wind to the dust, and exhausts the dust from the upper surface side of the swing sorter above the rear end of the swing sorter and discharges it outside the machine. In a combine with a fan, the second conveyor A sorting air blowing port of the sorting fan is formed on the opposite side of the first conveyor across the first conveyor, and the sorting air blowing port extends from the sorting wind blowing port in a direction crossing the flow of the second reduction reprocessed product flowing down to the second conveyor. It is configured to be able to supply the second sorting air of the sorting fan.

  According to a second aspect of the present invention, in the combine according to the first aspect, a sorting air outlet for the sorting fan is formed on a lower side of a second-class cereal plate provided in the swing sorting board, and the second The second sorting air of the sorting fan can be supplied from the sorting wind outlet to the second reduced reprocessed product flowing down from the cereal board to the second conveyor.

  According to a third aspect of the present invention, in the combine according to the first aspect, a suction port for the dust exhaust fan is formed behind the second conveyor and above the sorting air blowing port of the sorting fan. When the second sorting wind of the sorting fan blown from the outlet passes above the second conveyor, the moving direction of the second sorting wind of the sorting fan changes from the forward direction to the upward direction, The second sorting air of the sorting fan is configured to be movable toward the suction port of the dust exhaust fan, changing from the upward direction to the backward direction.

  According to the first aspect of the present invention, a traveling machine body equipped with an engine, left and right traveling crawlers that support the traveling machine body, a driving unit having a steering handle and a driving seat, and an uncut cereal crop in the field are reclaimed. A reaping device; a threshing device for threshing the harvested cereal culm; and an oscillating sorter for sorting threshed matter from the threshing device, and the first part for taking out the grain below the oscillating sorter The first conveyor, the tang fan that supplies the first sorting air above the first conveyor, the second conveyor for taking out the second reduced reprocessed material, and the second sorting air above the second conveyor A combiner comprising: a dust collecting fan for sucking dust from the upper surface side of the swing sorting plate and discharging it to the outside above the rear end side of the swing sorting plate. And the second conveyor across the second conveyor The sorting air outlet of the sorting fan is formed on the side, and the second sorting air of the sorting fan is supplied from the sorting air outlet in a direction crossing the flow of the second reduced reprocessed material flowing down to the second conveyor. Since the second reprocessed material that has flowed down from the rear end side (second-flow cereal plate) of the swinging sorter falls onto the second conveyor, the sorting wind blows. By the second selection wind of the selection fan supplied from the outlet, dust or sawdust in the second reduction reprocessed product can be easily removed, and the second reduction reprocessing taken out by the second conveyor. This makes it possible to easily improve the sorting workability of objects.

  According to the invention which concerns on Claim 2, the selection wind blowing outlet of the said selection fan is formed in the downward side of the 2nd style cereal board provided in the said rocking | swiveling sorter board, The said 2nd conveyor from the said 2nd style cereal board The second reduction reprocessed product flowing down to the second conveyor is configured to be capable of supplying the second sorting air of the sorting fan from the sorting air outlet toward the upper side of the second conveyor. While being able to easily remove dust or swarf in the second reduced reprocessed material flowing down from the second flow cereal plate by wind selection of the second selection wind of the selection fan supplied from the wind outlet, By the second sorting wind of the sorting fan, dust or debris in the second reduced reprocessed material that falls directly onto the second conveyor from the Strollac provided at the rear end of the swing sorter can be easily removed. Second reduction reprocessing that can be taken out by the second conveyor Those that can be easily improved sorting workability things.

  According to the invention which concerns on Claim 3, the suction port of the said dust exhaust fan is formed in the back of the said 2nd conveyor and above the sorting air blowing port of the said sorting fan, The said sorting which was blown off from the said sorting wind blowing port When the second sorting air of the fan passes above the second conveyor, the moving direction of the second sorting air of the sorting fan changes from the forward direction to the upward direction, and then changes from the upward direction to the backward direction. Since the second sorting air of the sorting fan is movable toward the suction port of the dust exhaust fan, the second sorting of the sorting fan is performed when passing over the second conveyor. When the direction of the wind is changed, relatively heavy grains and the like in the second reduced reprocessed product conveyed by the second sorting wind of the sorting fan are centrifuged and dropped onto the second conveyor below. On the other hand, relatively light dust or soot in the second reduction reprocessed product conveyed by the second sorting air of the sorting fan is conveyed to the suction port of the dust exhaust fan without being centrifuged. That is, by the centrifugal action of the second sorting wind of the sorting fan that moves in a spiral manner until the second reduced reprocessed product falls on the second conveyor, It can be separated into heavy grains etc. and relatively light dust or sawdust etc. of the second reduced reprocessed product, and can be taken out separately. It can be improved easily.

  DESCRIPTION OF EMBODIMENTS Embodiments embodying the present invention will be described below with reference to the drawings. 1 is a left side view of the combine, FIG. 2 is a plan view of the combine, FIG. 3 is a cross-sectional view of the threshing apparatus, and FIG. 4 is an enlarged explanatory view of a selection unit of the threshing apparatus. The overall structure of the combine will be described with reference to FIGS. 1 and 2. In the following description, the left side in the traveling direction of the traveling machine body 1 is simply referred to as the left side, and the right side in the traveling direction is also simply referred to as the right side.

  As shown in FIGS. 1 and 2, the combine according to the present embodiment includes a traveling machine body 1 supported by a pair of left and right traveling crawlers 2. At the front part of the traveling machine body 1, a six-row mowing device 3 that takes in while harvesting cereals is mounted by a single-acting lifting hydraulic cylinder 4 so as to be movable up and down around the mowing rotation fulcrum shaft 4a. Yes. A threshing device 5 having a feed chain 6 and a grain tank 7 for storing grain after threshing are mounted on the traveling machine body 1 side by side. In this embodiment, the threshing device 5 is disposed on the left side in the traveling direction of the traveling machine body 1, and the grain tank 7 is disposed on the right side in the traveling direction of the traveling machine body 1. A swivelable discharge auger 8 is provided at the rear part of the traveling machine body 1, and the grains inside the grain tank 7 are discharged from the throat throw 9 of the discharge auger 8 to a truck bed or a container. ing. An operation cabin 10 is provided on the right side of the reaping device 3 and on the front side of the grain tank 7.

  A steering handle 11 and a driver seat 12 are arranged in the driver cabin 10. Although not shown, the driving cabin 10 includes a step in which an operator gets on, a handle column provided with a steering handle, a main transmission lever and a sub transmission lever provided on a lever column on the left side of the driving seat 12, and A threshing clutch lever and a mowing clutch lever are arranged. An engine 20 as a power source is disposed in the traveling machine body 1 below the driver seat 12.

  As shown in FIGS. 1 and 2, left and right track frames 21 are arranged on the lower surface side of the traveling machine body 1. The track frame 21 includes a drive sprocket 22 that transmits the power of the engine 20 to the traveling crawler 2, a tension roller 23 that maintains the tension of the traveling crawler 2, and a plurality of track rollers that hold the ground side of the traveling crawler 2 in a grounded state. 24 and an intermediate roller 25 that holds the non-grounded side of the traveling crawler 2 are provided. The driving sprocket 22 supports the front side of the traveling crawler 2, the tension roller 23 supports the rear side of the traveling crawler 2, the track roller 24 supports the grounding side of the traveling crawler 2, and the intermediate roller 25 supports the non-traveling crawler 2. The ground side will be supported.

  A clipper-type cutting blade device 222 that cuts the stock of uncut grain culm in the field is provided below the cutting frame 221 connected to the cutting rotation fulcrum shaft 4a of the cutting device 3. In front of the mowing frame 221, a stalk raising apparatus 223 for 6 stalks that raises uncut cereals in the field is arranged. Between the culm pulling device 223 and the front end (feed start side) of the feed chain 6, a culm conveying device 224 that conveys the chopped culm harvested by the cutting blade device 222 is arranged. In addition, in front of the lower part of the grain culling pulling device 223, a weeding body 225 for six strips for weeding the uncut grain culm in the field is projected. While the traveling crawler 2 is driven by the engine 20 to move within the field, the reaping device 3 is driven to continuously shave the uncut cereals on the field.

  As shown in FIG. 1 to FIG. 3, the threshing device 5 includes a handling cylinder 226 for threshing threshing, a rocking sorter 227 that sorts the shed matter falling below the handling cylinder 226, and a tang fan 228. The processing cylinder 229 for reprocessing the threshing waste taken out from the rear part of the handling cylinder 226 and the dust exhaust fan 230 for discharging the dust at the rear part of the swing sorter 227 are provided. In addition, the rotating shaft of the handling cylinder 226 extends along the conveying direction of the cereal by the feed chain 6 (in other words, the traveling direction of the traveling machine body 1). The stock source side of the corn straw conveyed from the reaping device 3 by the corn straw conveying device 224 is inherited by the feed chain 6 and is nipped and conveyed. Then, the tip side of this cereal is carried into the handling chamber 226 a of the threshing device 5 and threshed by the handling cylinder 226.

  On the lower side of the swing sorter 227, the first conveyor 231 and the first basket 231a for taking out the grain (the first thing) sorted by the swing sorter 227, and the second one such as a grain with a branch raft A second conveyor 232 and a second basket 232a for taking out objects are provided. The two conveyors 231 and 232 of this embodiment are arranged in the order from the front side in the traveling direction of the traveling machine body 1 to the upper surface side of the traveling machine body 1 above the rear part of the traveling crawler 2 in a side view in order of the first conveyor 231 and the second conveyor 232. It is installed.

  The swing sorter 227 moves to the threshing machine housing 35 forming the threshing device 5 via the swing drive shaft 36, the front guide rail 37, and the rear guide rail 38 from diagonally forward to backward diagonally upward. Arranged to be possible. The swing sorter 227 is actuated by the power from the engine 20 via the swing drive shaft 36, and the swing sorter 227 is reciprocated diagonally forward or diagonally backward. As a result, the crushed material leaked from the receiving net 237 stretched below the handling cylinder 226 is configured to be peristally sorted (specific gravity selected) by the feed pan 238 and the chaff sheave 239 (see FIG. 3). . Grains that have fallen from the grain sieve 240 of the swing sorter 227 are removed by the sorting air from the tang fan 228 and fall to the first conveyor 231 and the first basket 231a.

  A whipping cylinder 233 extending in the vertical direction is connected to a terminal portion of the first conveyor 231 that protrudes outward from one side wall (in the embodiment, the right side wall) near the grain tank 7 in the threshing device 5. . The grain taken out first from the conveyor 231 is carried into the grain tank 7 via the whipping cylinder 233 and collected in the grain tank 7. In addition, along the inclination of the rear surface of the grain tank 7, the raising cylinder 233 is erected on the rear side of the grain tank 7 in a backward inclined posture in which the upper end side of the whipping cylinder 233 is inclined backward.

  Further, the Strollac 243 is disposed on the downstream side (rear side) of the chaff sheave 239. The swing sorter 227 causes the second reduced re-processed product such as grain with branch stems to fall onto the second conveyor 232 and the second basket 232a from the chaff sheave 239 or the Strollac 243 by peristaltic sorting (specific gravity sorting). It is composed. In addition, the relatively light waste on the upper surface side of the chaff sheave 239 is sucked into the dust exhaust fan 230 and discharged out of the machine from the discharge side of the dust exhaust fan 230. Further, relatively heavy sawdust moved from the downstream side (rear side) of the chaff sheave 239 to the upper surface side of the stroller 243 is discharged out of the machine from the third port 244 on the rear side of the swing sorter 227. become.

  A second sorting fan 241 for wind-selecting the second reduction reprocessed product falling below the Strollac 243 is provided. The second reduced reprocessed product dropped from the Strollac 243 is the second reduced reprocessed product in which dust and swarf in the grain are removed by the sorting wind from the second sorting fan 241 to remove dust and swarf. Falls to the second conveyor 232. The terminal part which protruded outward from the one side wall near the grain tank 7 in the threshing device 5 in the second conveyor 232 crosses the whipping cylinder 233 and passes through a reduction cylinder 236 extending in the front-rear direction, to a feed pan 238. It is connected in communication with the upper surface side. From the feed end side of the reduction cylinder 236, the second reduction reprocessed product is returned to the upper surface side of the feed pan 238 via the second reduction processing cylinder 242 (see FIG. 3). ).

  On the other hand, a waste chain 234 is disposed on the rear end side (feed end side) of the feed chain 6. The slag passed from the rear end side of the feed chain 6 to the sewage chain 234 (the slag from which the grain has been threshed) is discharged to the rear of the traveling machine body 1 in a long state, or the rear side of the threshing device 5 After being cut to a suitable length by the waste cutter 235 provided on the rear, the machine is discharged to the lower rear side of the traveling machine body 1.

  Next, with reference to FIGS. 3 and 4, the air path structure of the selection air supplied from the tang fan 228 to the chaff sheave 239 will be described. The Kara fan case 40 of the Kara fan 228 includes a main sorting air passage 41 for supplying the sorting air of the Kara fan 228 to the grain sheave 240, the first conveyor 231 and the first car 231a, the rear end side of the feed pan 238, and the chaff sheave. Between the front end side of the chaff sheave 239 from the front end side of the chaff sheave 239 and the first pre-air passage 42 that supplies the sorting air of the tang fan 228 to the upper surface side of the chaff sheave 239 and the front end side of the chaff sheave 239 A second pre-air passage 43 for supplying the selection air of the tang fan 228 is formed on the lower surface side of the chaff sheave 239. The above-described main sorting air passage 41 is formed such that the sorting air from the Chinese fan 228 moves from the lower front side of the Glen sheave 240 toward the upper rear side of the Glen sheave 240 via the main wind direction body 44. Yes. Further, the above-described main selection air passage 41 is configured so that the selection air from the tang fan 228 moves through the main wind direction body 44 from the front to the rear above the first conveyor 231 and the first fan 231a. Is formed. That is, it is configured such that the grain and dust falling from the grain sheave 240 to the first conveyor 231 and the first basket 231 a are selected by the sorting wind from the tang fan 228.

  The first pre-air passage 42 described above is such that the sorting air from the tang fan 228 moves from the front to the rear above the chaff sheave 239 via the pre-winding body 45 provided on the swing sorting board 227. Is formed. That is, when the degranulated material that has dropped onto the upper surface of the feed pan 238 from the handling cylinder 226 via the receiving net 237 falls from the rear end side of the feed pan 238 to the front end side of the chaff sheave 239, It is configured to be selected by the wind.

  The second pre-air path 43 described above is formed such that the selected air from the tang fan 228 moves via the pre-wind direction body 45 from the front to the rear above the Glen pan 245. In other words, the sorting air from the tang fan 228 moves from the lower front side of the chaff sheave 239 toward the upper rear side of the chaff sheave 239. That is, the grains and dust falling from the chaff sheave 239 to the Glen pan 245 and the Glen sheave 240 are configured to be selected by the sorting air from the Kara fan 228.

  Note that the sorting air from the tang fan 228 supplied from the main sorting air passage 41, the first pre-air passage 42, and the second pre-air passage 43 is supplied to the dust fan case 230 a of the dust fan 230 described above. Since it is sucked into the formed dust exhaust suction port 230b and discharged from the exhaust port 230c, or moves from the third port 244 to the rear of the threshing machine housing 35, the dust and dust in the crushed material from the handling cylinder 226 are removed. Then, the threshing machine casing 35 is discharged toward the field.

  Next, the air channel structure of the second selection air supplied from the second selection fan 241 to the stroller 243 will be described with reference to FIG. Below the Strollac 243, a second-flow cereal plate 246 that forms a bottom portion on the rear end side of the swing sorter 227 is disposed. A second sorting fan 241 is disposed below the second-flow cereal plate 246 and behind the second conveyor 232. A sorting air outlet 241 b is formed in the sorting fan case 241 a of the second sorting fan 241. The sorting wind outlet 241b is connected to the upper surface side of the second basket 232a below the lower end of the second-flow grain board 246. A sorting air outlet 241 b is formed above the second conveyor 232 and behind the second conveyor 232.

  That is, the second sorting air of the second sorting fan 241 is supplied from the sorting wind outlet 241b from the rear to the front above the second conveyor 232. Therefore, from the rear of the second reduced reprocessed material flowing down from the second-flow grain plate 246 to the second conveyor 232, toward the upper side of the second conveyor 232, the second of the second sorting fan 241 from the sorting air outlet 241 b. The sorting wind will be supplied. As a result, the second sorting wind of the second sorting fan 241 supplied from the sorting wind outlet 241b until the second reduced reprocessed product flowing down from the second flow grain plate 246 falls on the second conveyor 232. As a result, the dust or soot in the second reduced reprocessed product is removed.

  In addition, a dust exhaust fan 230 that sucks dust from the upper surface side of the swing sorting plate 227 and discharges it outside the apparatus is disposed above the rear end side of the swing sorting plate 227. A dust exhaust suction port 230b of the dust exhaust fan 230 is formed behind the second conveyor 232 and above the sorting air outlet 241b of the sorting fan 241. When the second sorting wind of the second sorting fan 241 blown from the sorting wind outlet 241b passes above the second conveyor 232, the moving direction of the second sorting wind has changed from the forward direction to the upward direction. Thereafter, the second sorting wind of the second sorting fan 241 moves from the upward direction to the backward direction and moves toward the dust suction port 230b.

  Accordingly, when the second sorting wind of the second sorting fan 241 from the sorting wind outlet 241b passes above the second conveyor 232, the direction of the second sorting wind is changed, so that the second sorting fan 241 The relatively heavy grains and the like in the second reduced reprocessed product conveyed by the second sorting air are centrifuged and dropped onto the second conveyor 232 below. On the other hand, relatively light dust or soot in the second reduced reprocessed product conveyed by the second sorting air of the second sorting fan 241 is conveyed to the dust suction port 230b of the dust exhaust fan 230 without being centrifuged. Is done. That is, by the centrifugal separation action of the second sorting wind of the second sorting fan 241 that moves in a spiral manner until the second reduced reprocessed product falls on the second conveyor 232, It is configured such that it is separated into relatively heavy grains or the like and relatively light dust or swarf etc. of the second reduced reprocessed product and is taken out separately.

  It should be noted that the above-described sorting air volume (selected wind power) of the tang fan 228 and the dust exhaust suction air volume (dust exhaust suction wind power) of the dust exhaust fan 230 are substantially matched. Further, the selection air volume of the second selection fan 241 (selection wind power) is approximately 1/5 or less of the selection air volume of the red air fan 228 or the dust suction air volume of the dust exhaust fan 230. It is desirable to set the sorting air volume (screening wind force), the dust suction air volume of the dust exhaust fan 230 (dust exhaust suction wind power), and the sorting air volume (screening wind power) of the second sorting fan 241.

  With the above-described configuration, the crushed material on the chaff sheave 239 and the Strollac 243 is sorted by specific gravity by the rocking motion of the rocking sorter 227. Grains (fine grains) fall from the chaff sheave 239 to the conveyor 231 first, and the grains are collected in the grain tank 7. Further, the second reduced reprocessed product falls from the Strollac 243 onto the second conveyor 232. Of the second reduction reprocessed product dropped from the Strollac 243, the second reduction reprocessed product dropped from the rear end side of the Strollack 243 to the second lower flow cereal plate 246 is the lower end of the second flow cereal plate 246. During the fall from the side to the second fence 232a, the wind is selected by the second sorting wind from the sorting wind outlet 241b.

  Further, all the second reduced reprocessed items dropped from the Strollac 243 are directed toward the dust suction port 230b until the second reduced reprocessed items fall on the second conveyor 232 or the second basket 232a. The wind is selected by the centrifugal separation action of the moving second sorting wind. As a result, relatively heavy grains and the like in the second reduction reprocessed product fall to the second conveyor 232 below by the centrifugal separation action of the second sorting wind. On the other hand, relatively light dust or soot in the second reduced reprocessed product conveyed by the second sorting wind is conveyed to the dust suction port 230b of the dust exhaust fan 230 without being centrifuged, and the dust exhaust fan. 230 is discharged from the outlet 230c of the machine.

  As apparent from the above description and FIGS. 1, 3, and 4, the vehicle includes a traveling machine body 1 on which the engine 20 is mounted, left and right traveling crawlers 2 that support the traveling machine body 1, a steering handle 11, and a driver seat 12. A driving unit 10, a reaping device 3 for reaping uncut cereals in the field, a threshing device 5 for threshing the harvested cereals, and an oscillating sorter 227 for selecting a shed product from the threshing device 5. The first conveyor 231 for taking out the first grain below the swinging sorter 227, the tang fan 228 for supplying the first sorting air above the first conveyor 231, and for taking out the second reduced reprocessed product The second conveyor 232 and the sorting fan 241 for supplying the second sorting air above the second conveyor 232 are arranged, and the upper surface of the swing sorting board 227 is located above the rear end side of the swing sorting board 227. Dust that is sucked out from the side and discharged outside the machine In the combine including the fan 230, the second reduction reprocessing is performed in which the sorting air outlet 241 b of the sorting fan 241 is formed on the opposite side of the first conveyor 231 across the second conveyor 232 and flows down to the second conveyor 232. Since the second sorting air of the second sorting fan 241 can be supplied from the sorting wind outlet 241b in the direction intersecting with the flow of the object, the second style cereal plate on the rear end side of the swing sorter 227 Until the second reduction reprocessed product flowing down from the H.246 falls on the second conveyor 232, the second reduction by the second selection wind of the second selection fan 241 supplied from the selection air outlet 241b. Dust or soot in the reprocessed product can be easily removed, and the sorting workability of the second reduced reprocessed product taken out by the second conveyor 232 can be easily improved.

  As is clear from the above description and FIGS. 3 and 4, the sorting wind outlet 241 b of the sorting fan 241 is formed below the second-flow grain plate 246 provided on the swing sorting board 227, and the second-flow grain A configuration in which the second sorting air of the second sorting fan 241 can be supplied from the sorting air outlet 241b behind the second conveyor 232 to the second reduction reprocessed product flowing down from the plate 246 to the second conveyor 232 Therefore, the dust or scum in the second reduced reprocessed material flowing down from the second-class cereal plate 246 can be easily obtained by the second-classification wind selected by the second sorting fan 241 supplied from the sorting wind outlet 241b. In the second reduced reprocessed product that falls directly from the Strollack 243 provided on the rear end side of the swing sorter 227 to the second conveyor 232 by wind selection of the second selection wind. Dust or sawdust Simply be removed, it can be easily improved sorting workability double dip reducing re-treated product is taken out by the double-dip conveyor 232.

  As is clear from the above description and FIGS. 3 and 4, the dust suction inlet 230 b of the dust exhaust fan 230 is formed behind the second conveyor 232 and above the sorting air outlet 241 b of the second sorting fan 241. When the second sorting wind of the second sorting fan 241 blown from the sorting wind outlet 241b passes above the second conveyor 232, the moving direction of the second sorting wind changes from the forward direction to the upward direction. After that, since the second sorting wind of the second sorting fan 241 is configured to move from the upward direction to the backward direction and move toward the dust suction port 230b, it passes above the second conveyor 232. When the second sorting wind of the second sorting fan 241 changes direction, the relatively heavy grain in the second reduced reprocessed product conveyed by the second sorting wind of the second sorting fan 241 It is centrifuged to fall into the double-dip conveyor 232 below. On the other hand, relatively light dust or sawdust in the second reduction reprocessed product conveyed by the second sorting air of the second sorting fan 241 is conveyed to the dust suction port 230b without being centrifuged. That is, by the centrifugal separation action of the second sorting air of the second sorting fan 241 that moves in a spiral manner before the second reduced reprocessed product falls on the second conveyor 232, Of these, it is possible to separate relatively heavy grains, etc., and relatively light dust or swarf etc. of the second reduced reprocessed product, and take them out separately. Can easily improve the wind selection ability.

It is a side view of the combine for 6-saw cutting of 1st Embodiment of this invention. It is the same top view. It is sectional drawing of a threshing apparatus. It is expansion explanatory drawing of the selection part of a threshing apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 traveling machine body 2 traveling crawler 3 reaping device 5 threshing device 10 driving cabin (operating part)
DESCRIPTION OF SYMBOLS 11 Steering handle 12 Driver's seat 20 Engine 227 Oscillating sorter 228 Kara fan 230 Dust fan 230b Dust suction inlet 231 First conveyor 232 Second conveyor 241 Second sort fan 241b Sorted air outlet 246 Second style cereal board

Claims (3)

A traveling machine body equipped with an engine, left and right traveling crawlers supporting the traveling machine body, a driving unit having a steering handle and a driving seat, a reaping device for reaping uncut cereals in a field, and a harvested culm A threshing device for threshing, and a rocking sorter for sorting the threshing material from the threshing device, below the rocking sorter, the first conveyor for taking out the first grain, and the first conveyor A Kara fan that supplies the first sorting air upward, a second conveyor for taking out the second reduced reprocessed material, and a sorting fan that supplies the second sorting air above the second conveyor are arranged, and the shaking In the combine formed by arranging a dust exhaust fan that sucks dust from the upper surface side of the swing sorter and discharges it outside the machine above the rear end side of the dynamic sorter,
A sorting air blowing port of the sorting fan is formed on the side opposite to the first conveyor across the second conveyor, and the sorting wind blowing is performed in a direction crossing the flow of the second reduced reprocessed material flowing down to the second conveyor. The combine that is configured to be able to supply the second sorting air of the sorting fan from the outlet.   Forming a sorting air outlet of the sorting fan on the lower side of the second-flow cereal plate provided on the swinging sorting board, to the second reduction reprocessed product flowing down from the second-flow cereal plate to the second conveyor On the other hand, the combine according to claim 1, wherein a second selection air of the selection fan can be supplied from the selection air outlet.   A suction port of the dust exhaust fan is formed behind the second conveyor and above the sorting air outlet of the sorting fan, and the second sorting air of the sorting fan blown out from the sorting air outlet is the second When passing over the conveyor, the moving direction of the second sorting air of the sorting fan changes from the forward direction to the upward direction, then changes from the upward direction to the backward direction, and enters the suction port of the dust exhaust fan. The combine according to claim 1, wherein the second sorting wind of the sorting fan is movable.

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