JP2009039037A - Combine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a combine arranging a clean grain lifting cylinder and a tailings returning lifting cylinder at a side of a thresher and, nevertheless, enabling the improvement of the screening capacity of a shaking table sorter. <P>SOLUTION: The tailings return mechanism of the combine has a tailings return lifting cylinder 61 connected to a tailings conveyor 32 and a tailings return forward transfer cylinder 62 connected to the tailings return lifting cylinder 61, wherein a clean grain lifting cylinder 33 and the tailings return lifting cylinder 61 are overlapped in back view, the clean grain lifting cylinder 33 and the tailings return lifting cylinder 61 are extended upward at an outer side of a shaking table sorter 27, the tailings return forward transfer cylinder 62 is arranged in an offset state within the lateral width of the shaking table sorter 27 relative to the tailings return lifting cylinder 61, and the transfer starting end of the tailings return forward transfer cylinder 62 is connected to the transfer finish end of the tailings return lifting cylinder 61. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a combine that harvests uncut cereal grains in a field using a pre-harvest processing device and threshs the harvested cereal grains using a threshing device. After sorting, the first sort (grain) is taken out by the first conveyor through the swing sorter, and the second sort (mixture of grain and sawdust) is taken by the second conveyor through the swing sorter. It is related with the combine comprised so that it might be taken out by.

  Conventionally, a combine harvests a traveling machine body equipped with an engine, a traveling crawler as a left and right traveling unit that supports the traveling machine body, a driving unit having a steering handle and a driving seat, and an uncut grain culm in a field. A cutting part and a threshing part for threshing the harvested cereal cocoon are provided, and the uncooked cereal grains in the field are continuously cut and threshed, and the grains are collected (for example, patent document). 1).

In this case, the conventional combine is configured such that the second selected item taken out from the swing sorter by the second conveyor is returned to the swing sorter via the second reduction milling cylinder. Further, a configuration in which a second discharger is disposed on the feed end side of the second reduction milling cylinder, the second selection object is processed by the second discharger, and then the second selection object is returned to the swing selection board (for example, , See Patent Document 2).
Japanese Utility Model Publication No. 62-193827 Japanese Patent No. 2589965

  As shown in Patent Document 1 or Patent Document 2, the prior art has a first cereal cylinder that takes out the first selection from the first conveyor below the swinging sorter on the side of the threshing device. Has been. In addition, the second reduction milling cylinder connected to the feed terminal end side of the second conveyor arranged behind the first conveyor on the lower side of the rear part of the swing sorter is the side on which the first milling cylinder is arranged. It is arrange | positioned so that it may extend to the front upper direction from the back of the first threshing cylinder in the side of this threshing apparatus. With the second reduced milling cylinder, the second sorted product was returned to the upper surface side of the front part of the swing sorter. As a result, since the first and second reduced milling cylinders are arranged so as to cross at the side of the swing sorter, the size of the combine (threshing device) in the left-right width direction is limited. In this case, there is a problem that the width dimension in the left-right direction of the swing sorter is limited and reduced, and the sorting processing ability of the swing sorter cannot be improved.

  An object of the present invention is to provide a combine that can improve the sorting processing capacity of a rocking sorter while being able to place the first and second reduced milling cylinders on one side of the threshing device. To do.

  In order to achieve the above object, the combine according to the first aspect of the present invention sorts the pre-cutting device, the threshing device for threshing the cereals conveyed from the pre-cutting device, and the threshing material from the threshing device. A swing sorting mechanism, a first conveyor for picking up the first selection through the swing selection mechanism and a first cereal cylinder, a second conveyor for taking out the second selection through the swing selection mechanism, and In the combine comprising a second reduction mechanism, the second reduction mechanism includes a second reduction milling cylinder coupled to the second conveyor and a second reduction forward transfer cylinder coupled to the second reduction milling cylinder. And wraps the first cereal cylinder and the second reduced cereal cylinder in a rear view, and places the first cereal cylinder and the outer side on one side of the swing selection mechanism. Extend the second reduction milling cylinder upward, and swing with respect to the second reduction milling cylinder The second reduction forward transfer cylinder is offset and arranged within the left and right widths of another mechanism, and the feed start end side of the second reduction forward transfer cylinder is connected to the feed end side of the second reduction milling cylinder. Is.

  The invention according to claim 2 is the combine according to claim 1, wherein the threshing device has a structure including a handling cylinder and a processing cylinder for processing dust discharged from the handling cylinder, The processing cylinder is disposed between a handling cylinder and the second reduction front transfer cylinder.

  According to a third aspect of the present invention, there is provided the combine according to the second aspect, wherein the swing sorting mechanism has a swing sorter for sorting out the crushed material from the handling cylinder, The handling cylinder and the processing cylinder are arranged above the horizontal width of the dynamic sorting board, and the second reduction forward transfer cylinder is located above the upper surface of the swing sorting board and below the axial line of the processing cylinder. It is arranged.

  According to the invention according to claim 1, a pre-cutting processing device, a threshing device for threshing the cereal straw conveyed from the pre-cutting processing device, a rocking sorting mechanism for selecting a shed product from the threshing device, A first conveyor and a first cereal cylinder that take out the first selection through the swing sorting mechanism; and a second conveyor and second reduction mechanism that takes out the second selection through the swing selection mechanism. In the above combine, the second reduction mechanism has a second reduction milling cylinder coupled to the second conveyor and a second reduction forward transfer cylinder coupled to the second reduction milling cylinder. A blasting cylinder and the second reduced pulverizing cylinder are arranged by wrapping them in a rear view, and the first and second reduced pulverizing cylinders are arranged on the outer side of one side of the swing selection mechanism. And the second return within the lateral width of the swing sorting mechanism with respect to the second reduction milling cylinder Since the forward transfer cylinder is arranged with an offset and is configured to connect the feed start end side of the second reduction front transfer cylinder to the feed end side of the second reduction milling cylinder, one side of the threshing device The first and second reduced cereal cylinders can be arranged in a line at the front and rear. Since the width dimension in the left-right direction of the swing sorting mechanism is hardly restricted by the installation of the first and second reduced milling cylinders, the sorting processing capacity of the swing sorting board can be easily improved. .

  According to the invention which concerns on Claim 2, the said threshing apparatus is a structure which has a handling cylinder and the processing cylinder for processing the dust discharged | emitted from the said handling cylinder, Comprising: The said handling cylinder and the said 2nd reduction | restoration front Since the processing cylinder is arranged between the transfer cylinder and the space formed on the lower side of the process cylinder, the second reduction front transfer cylinder can be extended along the process cylinder. The second reduction front transfer cylinder can be compactly installed on one side of the threshing device. In addition, it is possible to easily secure an installation space for the swing sorting mechanism below the second reduction front transfer cylinder, and to place a second position from the second return front transfer cylinder toward the center in the left-right width direction of the swing selection mechanism. The sorted product can be easily reduced, and the sorting ability of the second sorted product can be improved.

  According to a third aspect of the present invention, the swing sorting mechanism has a swing sorter for sorting out the crushed material from the handling cylinder, and the width of the swing sorter in the left-right direction. Since the handling cylinder and the processing cylinder are arranged above the inside, and the second reduction front transfer cylinder is arranged above the upper surface of the swing sorter and below the axial line of the processing cylinder, Using the space formed on the lower side of the processing cylinder, the second reduction front transfer cylinder can be extended along the processing cylinder, and the second reduction front transfer cylinder can be compacted on one side of the threshing device. Can be installed. In addition, it is possible to easily secure the installation space for the swing sorter on the lower side of the second reduction front transfer cylinder, and to place the second from the second return front transfer cylinder toward the center in the left-right width direction of the swing sorter. The sorted product can be easily reduced, and the sorting ability of the second sorted product can be improved.

  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 right side view of the combine, FIG. 3 is a plan view of the combine, FIG. 4 is a left side sectional view of the combine threshing device, FIG. 5 is a front view of the threshing device, FIG. Is a rear view of the threshing device, FIG. 7 is a plan view of the threshing device, FIG. 8 is a left sectional view of the sorting mechanism of the threshing device, FIG. 9 is a left sectional view of the second reduction mechanism of the threshing device, and FIG. It is a back sectional view of a mechanism. The overall structure of the combine will be described with reference to FIGS. 1 to 3. In the following description, the left side in the forward direction of the traveling machine body 1 is simply referred to as the left side, and the right side in the forward direction is also simply referred to as the right side.

  As shown in FIGS. 1 to 3, the combine according to this embodiment includes a traveling machine body 1 supported by a pair of left and right traveling crawlers 2 (traveling portions). At the front of the traveling machine body 1, a cutting pre-treatment device 3 for 6-line harvesting that is harvested while harvesting cereal can be adjusted up and down around the cutting rotation fulcrum shaft 4a by a single-acting lifting hydraulic cylinder 4. It is installed. 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. The threshing device 5 is arranged on the left side in the forward direction of the traveling machine body 1 (see FIG. 3). Moreover, the grain tank 7 is arrange | positioned at the right side toward the advancing direction of the traveling body 1. Underneath the grain tank 7 (upper surface side of the traveling machine body 1), a cradle cradle 8 is provided, and the grains inside the cereal tank 7 are fed from the basin outlet 9 on the lower surface side of the grain tank 7 8 is configured to be discharged into a bag (not shown) on the top. An operation unit 10 is provided on the right side of the pre-cutting processing device 3 and on the front side of the grain tank 7.

  The driver 10 is provided with a step 11 on which the operator boardes and a driver seat 12. Left and right side clutch levers 14 and 15 for steering are disposed on a handle column 13 in front of the driver seat 12. A travel speed change lever 17 and a work clutch lever 18 for operating the threshing clutch and the mowing clutch are arranged on the lever column 16 on the left side of the driver seat 12. 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. 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, and the track roller 24 supports the grounding side of the traveling crawler 2.

  As shown in FIG. 1 to FIG. 3, below the cutting frame 221 connected to the cutting rotation fulcrum shaft 4a of the pre-cutting processing device 3, a clipper type cutting that cuts the stock of uncut grain culm in the field. A blade device 222 is provided. In front of the harvesting frame 221, a grain culling pulling device 223 for four ridges that raises an uncut grain culm 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 raising apparatus 223, a four-part weed body 225 for weeding the uncut grain meal in the field is projected. The driving crawler 2 is driven by the engine 20 to move in the field, while the pre-cutting processing device 3 is driven to continuously cut uncut cereals in the field.

  As shown in FIGS. 1, 2, and 4 to 7, the threshing device 5 includes a handling cylinder 26 for threshing threshing and an oscillating sorting mechanism that sorts cereals falling below the handling cylinder 26. As a swing sorter 27, a red pepper fan 28 for supplying sorting wind to the swing sorter 27, a processing drum 29 for reprocessing the threshing waste taken out from the rear part of the handling drum 26, and a swing sorter And a dust exhaust fan 30 for discharging the dust exhaust at the rear portion of 27 to the outside of the machine. A handling cylinder shaft 26a that rotates the handling cylinder 26 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 stocker side of the grain straw transported from the pre-harvest processing device 3 by the grain straw transporting device 224 is inherited by the feed chain 6 and is nipped and transported. Then, the tip side of the cereal basket is carried into the handling chamber 26 b of the threshing device 5 and threshed by the handling cylinder 26.

  As shown in FIG. 4, a waste chain 34 is disposed on the rear end side (feed end side) of the feed chain 6. The waste (the grain from which the grain has been threshed) inherited from the rear end side of the feed chain 6 to the waste chain 34 is discharged to the rear of the traveling machine body 1 in the long state, or the rear side of the threshing device 5 After being cut to an appropriate length by the waste cutter 35 provided at the front, the paper is discharged to the lower rear of the traveling machine body 1.

  As shown in FIG. 4, on the lower side of the rocking sorter 27, a first conveyor 31 and a first basket 31a for taking out the grain (first thing) sorted by the rocking sorter 27, branches A second conveyor 32 and a second basket 32a for taking out second items such as cereal grains are provided. The two conveyors 31 and 32 of the present embodiment are arranged in the order of the first conveyor 31 and the second conveyor 32 from the front 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. It is installed.

  As shown in FIGS. 4 and 5, the rocking sorter 27 is configured such that the cereal that has leaked from the receiving net 26 c stretched below the handling cylinder 26 is removed from the feed pan 271 and the chaff sheave of the rocking sorter 27. 272 is configured to perform peristaltic sorting (specific gravity sorting). The grain (first sorted matter) that has fallen from the grain sieve 273 of the swing sorter 27 is removed by the sorting wind from the Kara fan 28 and falls first onto the conveyor 31. A first cereal cylinder 33 extending in the vertical direction is connected to a terminal portion of the first conveyor 31 that protrudes outward from one side wall (in the embodiment, the right side wall) near the grain tank 7 in the threshing device 5. ing. The grain taken out from the first conveyor 31 is carried into the grain tank 7 by the first cereal conveyor 33 a provided in the first cereal cylinder 33 and collected in the grain tank 7.

    As shown in FIGS. 4 and 8, a stroller 274 is arranged on the downstream side (rear side) of the chaff sheave 272. The rocking sorter 27 is subjected to peristaltic sorting (specific gravity sorting) so that the second sorting product such as a grain with branch stems from the chaff sheave 272 or the Strollac 274 (resort reprocessing for resorting in which grain and sawdust are mixed) Is configured to fall onto the second conveyor 32 and the second basket 32a. The second selected item taken out by the second conveyor 32 is returned to the upper surface side of the feed pan 271 via the second reduction cylinder 61 (second reduction milling cylinder) described later and re-selected.

  Note that the relatively light waste on the upper surface side of the chaff sheave 272 and the stroller 274 is sucked into the suction port 30a on the front side of the dust exhaust fan 30 and discharged from the exhaust port 30b on the rear side of the dust exhaust fan 30 to the outside of the machine. Will be. Further, the relatively heavy sawdust that has moved from the downstream side (rear side) of the chaff sheave 272 to the upper surface side of the stroller 274 is discharged from the third port 36 on the rear end side of the swing sorter 27 to the outside. It will be.

  As shown in FIGS. 4 and 8, the swing sorter 27 is placed on a threshing machine housing 55 in which the threshing device 5 is formed via a swing drive shaft 56, a front guide rail 57 and a rear guide rail 58. Thus, it is arranged so as to be movable diagonally forward and downward and diagonally upward and backward. The swing sorter 27 is actuated by the power from the engine 20 via the swing drive shaft 56, and the swing sorter 27 reciprocates diagonally forward or diagonally backward. As a result, the crushed material leaked from the receiving net 37 stretched below the handling cylinder 26 is configured to be peristally sorted (specific gravity sorting) by the feed pan 271 and the chaff sheave 272.

  As shown in FIGS. 4 and 8, the tang fan case 28a of the tang fan 28 is supplied with the sorting air of the tang fan 28 toward the lower surface side of the grain sheave 273 and above the first conveyor 31 and the first fan 31a. A main sorting air passage 41 to be supplied and a pre-air passage 42 for supplying the sorting air of the tang fan 28 from the lower surface side of the feed pan 271 toward the lower surface side of the chaff sheave 272 are formed. The above-described main sorting air passage 41 is formed so that the sorting air from the Chinese fan 28 moves from the lower front side of the grain sieve 273 toward the upper rear side of the grain sheave 273.

  Further, the above-described main sorting air passage 41 is formed so that the sorting air from the Kara fan 28 moves from the front to the rear above the first conveyor 31 and the first basket 31a. That is, the grain and dust that fall from the grain sieve 273 to the first conveyor 31 and the first basket 31 a are selected by the sorting wind from the tang fan 28. As a result, it is configured such that only the grain after the dust is removed falls to the first conveyor 31 and the first basket 31a and is taken out to the grain tank 7 by the first conveyor 31.

  The pre-air passage 42 described above is formed such that the sorting air from the tang fan 28 moves from the front lower side to the rear upper side of the chaff sheave 272. That is, when the degranulated material that has fallen from the handling cylinder 26 to the upper surface of the feed pan 271 through the receiving net 26 c falls from the rear end side of the feed pan 271 to the front end side of the chaff sheave 272, Selected by wind. As a result, among the degranulated material that has moved from the feed pan 271 to the upper surface of the chaff sheave 272, the lower swarf (lightweight material) of the degranulated material close to the upper surface of the chaff sheave 272 is moved to the upper layer side by the sorting wind, The amount of sawdust falling from 272 is reduced. In addition, due to the specific gravity sorting action of the chaff sheave 272 and the wind selection of the sorting wind from the tang fan 28, the grain on the upper layer side (heavy article) of the shed product is moved to the lower layer side and leaked early from the chaff sheave 272. Will do. The specific gravity sorting action of the chaff sheave 272 is facilitated by the sorting wind from the tang fan 28, and the sorting processing capability (sorting accuracy) is improved.

  Note that the sorting air from the tang fan 28 supplied from the main sorting air passage 41 and the pre-air passage 42 is sucked into the dust exhaust suction port 30a of the dust exhaust fan 30 and discharged from the exhaust port 30b. Since the third port 36 moves to the rear of the threshing machine housing 55, the sawdust and dust in the threshing material from the handling cylinder 26 are discharged from the rear part of the threshing machine housing 55 toward the field. .

  As shown in FIGS. 4 to 7, the processing cylinder 29 described above has a processing cylinder chamber 29 b formed by a processing cylinder case 45 and a processing net 46 via a processing cylinder shaft 29 a that rotates the processing cylinder 29. Is placed inside. The processing cylinder shaft 29a extends in parallel with the above-described handling cylinder shaft 26a (in other words, the traveling direction of the traveling machine body 1). The front end side of the processing cylinder shaft 29a is extended to the front side of the threshing machine housing 55, and the power of the engine 20 is transmitted to the front end side of the processing cylinder shaft 26a and the front end side of the processing cylinder shaft 29a via the transmission belt 47. Thus, the handling cylinder 26 and the processing cylinder 29 are configured to always rotate in conjunction with each other.

  As shown in FIG. 6, a processing cylinder chamber 29 b is arranged on the right side of the threshing machine housing 55. The rear end side of the processing chamber 26b is communicated with the front end side of the processing cylinder chamber 29b via a dedusting dust outlet 47 formed on the right side of the rear end side of the processing chamber 26b (see FIG. 7). The degranulated dust (mixture of grain and sawdust) generated in the handling chamber 26b due to the degranulating action of the handling cylinder 26 is caused by the discharge action of the tooth handling on the rear end side of the handling cylinder 26, thereby causing the rear end of the handling chamber 26b. From the side, it is configured to move to the front end side of the processing cylinder chamber 29b through the dedusting dust outlet 47. The degranulated dust that has moved to the processing cylinder chamber 29b is configured to be processed (re-degranulated) by the processing cylinder 29.

  As a result, the grains in the degranulated dust are leaked from the processing net 46 and fall to the upper surface side of the lower chaff sheave 272 and are taken out by the first conveyor 31 or the second conveyor 32. . Further, dust such as sawdust in the shed dust is dropped from the dust outlet on the rear end side of the processing cylinder chamber 29b to the upper surface side of the lower Strollac 274 and then discharged to the outside from the third port 36. Will be.

  Next, the structure of the second reduction mechanism 60 according to the embodiment of the present invention will be described with reference to FIGS. As shown in FIGS. 9 and 10, the second reduction mechanism 60 includes a second reduction cylinder 61 connected to the feed end side of the second conveyor 32 and a second reduction front connected to the feed end side of the second reduction cylinder 61. It has the 2nd conveyance cylinder 62 as a transfer cylinder. A second reduction conveyor 63 is provided in the second reduction cylinder 61. A second conveying conveyor 64 is provided in the second conveying cylinder 62. Of the second conveyor 32, the feed end portion protruding outward from one side wall (right side wall in the embodiment) of the threshing device 5 near the grain tank 7 is on the feed start end side of the second reduction conveyor 63 extending in the vertical direction. (Lower end side) is connected in communication. The feed starting end side (rear end side) of the second transfer conveyor 64 extending in the front-rear direction is connected to the feed end portion (upper end side) of the second reduction conveyor 63.

  As shown in FIGS. 9 and 10, a lower transfer case 65 is disposed on the outer surface of one side wall (right side wall in the embodiment) near the grain tank 7 in the threshing machine housing 55. The lower end side of the second reduction cylinder 61 is connected to the upward opening side of the lower transfer case 65. A second reduction cylinder 61 is erected substantially vertically along the outer surface of the lower side wall 55a of one side wall (right side wall) of the threshing machine housing 55. The right side end side of the second conveyor shaft 32b of the second conveyor 32 and the lower end side of the second reduction conveyor shaft 63a of the second reduction conveyor 63 can rotate to the lower transfer case 65 via bearing bearings 65a and 65b, respectively. Is pivotally supported. The lower end side of the second reduction conveyor shaft 63a is connected to the right end side of the second conveyor shaft 32b via the bevel gear mechanism 66.

  As shown in FIGS. 9 and 10, an upper transfer case 67 is disposed on the upper end side of the second reduction cylinder 61. The rear end side of the second transfer cylinder 62 is connected to the side opening side of the upper transfer case 67. A second transport cylinder 62 is horizontally arranged along the outer surface of the upper side wall 55b in one side wall (right side wall) of the threshing machine housing 55. The second reducing cylinder 61 is extended upward from the second conveyor 32 behind the first cereal cylinder 33, and the middle of the second conveying cylinder 62 is crossed in the middle of the first cereal cylinder 33 in a side view. It is composed. That is, the second conveying cylinder 62 is extended in the front-rear direction in parallel with the axis of the handling cylinder 26 and the processing cylinder 29 (see FIG. 7). In other words, the first cereal cylinder 33 and the second reduction cylinder 61 are extended upward on the outer side of one side of the swing sorting board 27, and the left and right widths of the swing sorting board 27 with respect to the second reduction cylinder 61. The second transport cylinder 62 is arranged in an offset manner inside, and the feed start end side of the second transport cylinder 62 is connected to the feed end side of the second return cylinder 61.

  As shown in FIGS. 6, 7, and 10, the first cereal cylinder 33 and the second reduction cylinder are sandwiched between the second conveying cylinder 62 on the outer side of the one side wall (right side wall) of the threshing machine housing 55. 61 are arranged. The first cereal cylinder 33 and the second reduction cylinder 61 are arranged by being wrapped in the rear view. The first cereal cylinder 33 and the second reduction cylinder 61 are configured to be arranged in a line in the front-rear direction along the second conveyance cylinder 62. The lower side wall 55a of the threshing machine housing 55 is disposed closer to the grain tank 7 than the upper side wall 55b. A processing cylinder 29 is disposed between the handling cylinder 26 and the second conveyance cylinder 62. A handling cylinder 26 and a processing cylinder 29 are disposed above the width of the swing sorter 27 in the left-right direction. A second transfer cylinder 62 is disposed above the upper surface of the swing sorter 27 and below the axis of the processing cylinder 29.

  As shown in FIG. 6 and FIG. 10, the upper side wall 55 b is formed as a flocculation guide body disposed between the processing receiving net 46 and the upper surface of the swing sorter 27. Processed grain leaked from the processing receiving net 46 (processed product re-degranulated by the processing cylinder 29 out of the deagglomerated dust) is guided to drop toward the upper surface of the swing sorter 27 by the upper side wall 55b. Will be. The right frame plate 27a of the swing sorter 27 is opposed to the inner side surface of the lower side wall 55a. One end side of the synthetic resin elastic seal material 50 is fixed to the upper end side of the right frame plate 27a, and the other end side of the elastic seal material 50 is elastically pressed to the inner side surface of the lower side wall 55a. It is possible to prevent the unsorted material (granulated material) on the upper surface side of the swing sorting board 27 from entering the gap between the lower side wall 55a and the right frame plate 27a.

  As shown in FIGS. 9 and 10, a gear case 69 having a bevel gear mechanism 68 and a chain case 71 having a chain transmission mechanism 70 are arranged on the outer surface of the upper transfer case 67. The second conveying conveyor shaft 64a of the second conveying conveyor 64 is connected to the upper end side of the second reducing conveyor shaft 63a via a bevel gear mechanism 68 and a chain transmission mechanism 70. In other words, the second conveyor shaft 64a is connected to the second conveyor shaft 32b via the second reduction conveyor shaft 63a. As a result, the second reduction conveyor 63 and the second conveyance conveyor 64 operate in conjunction with the second conveyor 32.

  Therefore, the second selected item leaked from the chaff sheave 271 or the stroller 274 to the second conveyor 32 and the second basket 32a is inherited from the second conveyor 32 to the second reduction conveyor 63. In addition, the second selection material handed over to the second reduction conveyor 63 is passed from the second reduction conveyor 63 to the second conveyance conveyor 64 by the scraping blade 63b on the feed end side of the second reduction conveyor 63. Become.

  As shown in FIGS. 5, 7, and 9, a discharge case 80 for the second selected item is disposed on the front end side of the second conveyance cylinder 62 that extends forward from the first reduction cylinder 33. . The second selected item conveyed by the second conveying conveyor 64 is discharged from the discharge port 80 a of the discharge case 80 toward the upper surface side of the feed pan 271. A discharge case 80 is disposed on the upper right side of the upper surface of the feed pan 271, and a discharge port 80 a is opened from the right side of the upper surface of the feed pan 271 toward the left side. In other words, the degranulated material crushed at the lower side of the handling cylinder 26 rotating in the clockwise direction is scattered from the left side to the right side of the upper surface of the feed pan 271, whereas the two shed from the discharge port 80 a. The number sorting object is configured to scatter from the right side of the upper surface of the feed pan 271 toward the left side. The discharge port 80a is formed in the first half of a discharge case 80 provided with a discharge blade 88 described later.

  Therefore, the scattered direction of the crushed material from the handling cylinder 26 and the scattered direction of the second selected material from the discharge port 80a intersect each other in the vicinity of the center of the left and right width of the feed pan 271. That is, the degranulated product and the second selected product collide near the center of the left and right width of the feed pan 271, and the degranulated product accumulates on the right side of the feed pan 271 (on the lower rotation side of the handling cylinder 26). Can be prevented. As a result, the crushed material and the second selected material moving from the feed pan 271 to the chaff sheave 272 are diffused in the left-right width direction of the chaff sheave 272, and the sorting workability in the chaff sheave 272 can be improved.

  As shown in FIGS. 5, 7, and 9, the rear end side of the cylindrical discharge case 80 extending in the front-rear direction is detachably connected to the front end side of the second transport cylinder 62. That is, the cylinder flange 62a is fixed to the front end side of the second conveying cylinder 62 by welding, the case flange 80b is fixed to the rear end side of the discharge case 80 by welding, and the case flange 80b is connected to the bolt 81 and the cylinder flange 62a. The nut 82 is detachably fastened. A bearing body 83 is detachably fastened to the cylindrical flange 62a with a bolt 84, and the front end side of the second transport conveyor shaft 64a is rotatably supported by the bearing body 83.

  In the discharge case 80, a discharge shaft 85 extending in the front-rear direction is rotatably disposed. The rear end side of the discharge shaft 85 is detachably connected to the front end side of the second transport conveyor shaft 64a, and the second transport conveyor shaft 64a and the discharge shaft 85 are configured to rotate integrally. The front end side of the discharge shaft 85 is rotatably supported on the front wall of the discharge case 80. On the discharge shaft 85, a plurality of suction blades 86 for sucking the second selection in the second transport cylinder 62 from the front end side of the second transport cylinder 62 into the discharge case 80, and two in the discharge case 80 A plurality of second fork-shaped second processing teeth 87 for agitating the number selection object, and a plurality of discharge blades for scattering the second selection object in the discharge case 80 from the discharge port 80a toward the upper surface of the feed pan 271. 88.

  As shown in FIGS. 7 and 9, a boss body 89 is fitted on the discharge shaft 85. Suction blades 86 are arranged radially on the rear end side of the discharge shaft 85 through boss bodies 89. The second selected item conveyed to the front end side of the second conveyance cylinder 62 by the second conveyance conveyor 64 is sucked into the discharge case 80 by the suction blade 86. The second processing teeth 87 are arranged radially through the boss body 89 in the middle of the discharge shaft 85. A receiving tooth 90 is disposed inside the discharge case 80 so as to face the second processing tooth 87. The second selection object is processed by the second processing teeth 87 and the receiving teeth 90. Discharge blades 88 are arranged radially on the front end side of the discharge shaft 85 via boss bodies 89. The second sort in the discharge case 80 is discharged from the discharge port 80a by the discharge blade 88.

  According to the above configuration, when the uncut grain culm in the field is cut by the pre-cutting processing device 3 and the chopped cereal supplied from the pre-cutting processing device 3 is threshed by the threshing device 5, the threshing that has fallen from the threshing device 5 Objects are sorted by the swing sorter 27. The grain as the first selected item sorted by the swing sorter 27 is collected in the grain tank 7 by the first conveyor 31. In addition, when the mixture of grain and swarf as the second selected item sorted by the swing sorter 27 falls on the second selected item 32a, the second selected item is transferred from the second conveyor 32 to the second reducing conveyor. The second transfer conveyor 63 is transferred to the second transfer conveyor 64, and is transferred from the second transfer conveyor 64 into the discharge case 80.

  The second selected matter taken into the discharge case 80 from the front end side of the second conveying cylinder 62 by the suction vanes 86 is processed by the second processing teeth 87 and the receiving teeth 90 (the degreasing of stabbed grains and the debris generation). After the processing such as separation, the discharge blade 88 discharges it from the discharge port 80a to the upper surface of the feed pan 271 and selects it again by the rocking sorter 27. Therefore, the grain in the second selection is carried into the grain tank 7 from the first conveyor 31. In addition, the sawdust in the second selection is discharged from the dust exhaust fan 30 or the third port 36 to the outside of the machine through the upper surface of the chaff sheave 272.

  Moreover, although the 2nd conveyor 32, the 2nd return conveyor 63, and the 2nd conveyance conveyor 64 always rotate interlockingly, each rotation speed differs. The second reduction conveyor 63 rotates at a higher speed than the second conveyor 32, and the second conveyance conveyor 64 rotates at a higher speed than the second reduction conveyor 63. The conveyance amount per unit time of the second reduction conveyor 63 is larger than the conveyance amount per unit time of the second conveyor 32, and the unit of the second conveyance conveyor 64 is larger than the conveyance amount per unit time of the second reduction conveyor 63. The conveyance amount per time is increased, and the second selection object is prevented from being clogged during the conveyance of the second reduction conveyor 63 or the second conveyance conveyor 64.

  Next, the structure of the second reduction mechanism 60 according to the second embodiment of the present invention will be described with reference to FIG. As shown in FIG. 11, inside the discharge case 80-2 as a discharge body that discharges the second selection material conveyed by the second conveyance conveyor 64 toward the upper surface of the feed pan 271, via the discharge shaft 85, A plurality of suction blades 86 for taking in the second sorted product in the second transport cylinder 62 are arranged. The discharge port 80a is formed in the full width of the discharge case 80-2 in the front-rear direction (axial direction of the discharge shaft 85). In addition, the 2nd process tooth | gear 87, the discharge blade 88, and the receiving tooth 90 which are shown in FIG. 9 are abbreviate | omitted. In other words, the second selected item transferred to the front end side of the second transfer cylinder 62 by the second transfer conveyor 64 is taken into the discharge case 80-2 by the suction blade 86 and fed from the discharge port 80a by the suction blade 86. It is configured to be discharged toward the upper surface of the pan 271. As a result, the second sorted product returned to the feed pan 271 from the discharge case 80-2 is sorted again by the swing sorter 27.

  As is clear from the above description and FIGS. 1 and 7 to 10, the threshing device 5 for threshing the cereal meal, and the oscillating sorter 27 as an oscillating sorting mechanism for sorting the threshed matter from the threshing device 5, The first conveyor 31 and the first cereal cylinder 33 that take out the first selection through the swing sorter 27, and the second conveyor 32 and second reduction that takes out the second sort through the swing sorter 27 In the combine including the mechanism 60, the second reduction mechanism 60 includes a second reduction cylinder 61 as a second reduction milling cylinder connected to the second conveyor 32 and a second reduction cylinder connected to the second reduction cylinder 61. It has the 2nd conveyance cylinder 62 as a front transfer cylinder, arrange | positions the first cereal cylinder 33 and the 2nd reduction | restoration cylinder 61 so that it may wrap by a rear view, and the outer side of one side of the rocking | swiveling sorter 27 The first cereal cylinder 33 and the second reduction cylinder 61 are extended upwards, and are swung with respect to the second reduction cylinder 61 Since the second transport cylinder 62 is arranged offset in the left and right width of the sorting board 27 and the feed start end side of the second transport cylinder 62 is connected to the feed end side of the second return cylinder 61. In one side of the threshing device 5, the first whipping tube 33 and the second reduction tube 61 can be arranged in a line in the front-rear direction. By installing the first cereal cylinder 33 and the second reduction cylinder 61, the width dimension in the left-right direction of the rocking sorter 27 is hardly restricted, so that the sorting ability of the rocking sorter can be easily improved.

  Further, as compared with the conventional swing sorting structure, the width dimension in the left-right direction of the swing sorting board 27 can be easily expanded in the direction of the lower rotation side in which the degranulated material such as grain is offset from the handling cylinder 26. In other words, the degranulated material can be dropped from the handling cylinder 26 toward the center of the rocking sorter 27 in the left-right width direction. Moreover, the degranulated material that is offset from the handling cylinder 26 can be easily dispersed. It is possible to improve the sorting ability of the degranulated material that falls away from the handling cylinder 26.

  As is clear from the above description and FIGS. 5 to 8, the threshing device 5 has a structure including a handling cylinder 26 and a treatment cylinder 29 for processing dust discharged from the handling cylinder 26. 26 and the second transfer cylinder 62, the process cylinder 29 is disposed. Therefore, the second transfer cylinder 62 is provided along the process cylinder 29 using a space formed on the lower side of the process cylinder 29. The second conveying cylinder 62 can be compactly installed on one side of the threshing device 5. In addition, the installation space for the swing sorter 27 can be easily secured on the lower side of the second transport cylinder 62, and the second sorter can be easily placed from the second transport cylinder 62 toward the center in the left-right width direction of the swing sorter 27. And the sorting ability of the second sort can be improved.

  As is clear from the above description and FIGS. 5 to 8, the swing sorting mechanism has a swing sorter 27 for sorting out the crushed material from the handling cylinder 26. The handling cylinder 26 and the processing cylinder 29 are arranged above the width in the left-right direction, and the second conveyance cylinder 62 is arranged above the upper surface of the swing sorter 27 and below the axial line of the processing cylinder 29. From the space formed on the lower side of the processing cylinder 29, the second conveying cylinder 62 can be extended along the processing cylinder 29, and the second conveying cylinder 62 can be made compact on one side of the threshing device 5. Can be installed. In addition, the installation space for the swing sorter 27 can be easily secured on the lower side of the second transport cylinder 62, and the second sorter can be easily placed from the second transport cylinder 62 toward the center in the left-right width direction of the swing sorter 27. And the sorting ability of the second sort can be improved.

It is a left view of the combine for 4 thread cutting of 1st Embodiment of this invention. It is a right view of a combine. It is a top view of a combine. It is left side sectional drawing of the threshing apparatus of a combine. It is a front view of a threshing apparatus. It is a rear view of a threshing apparatus. It is a top view of a threshing apparatus. It is left side sectional drawing of the selection mechanism of a threshing apparatus. It is a left sectional view of the 2nd reduction mechanism which shows a 1st embodiment. It is a back sectional view of the 2nd reduction mechanism. It is left sectional drawing of the 2nd reduction | restoration mechanism which shows 2nd Embodiment.

Explanation of symbols

3 Pre-cutting device 5 Threshing device 27 Oscillating sorter (oscillating sorting mechanism)
29 Processing cylinder 31 First conveyor 32 Second conveyor 33 First cereal cylinder 60 Second reduction mechanism 61 Second reduction cylinder (second reduction cereal cylinder)
62 No. 2 transfer cylinder (No. 2 return front transfer cylinder)

Claims (3)

A pre-cutting processing device, a threshing device for threshing the cereal straw conveyed from the pre-cutting processing device, an oscillating sorting mechanism for sorting the threshing material from the threshing device, and the first through the oscillating sorting mechanism In the combine comprising the first conveyor and the first cereal cylinder for taking out the selection, and the second conveyor and the second reduction mechanism for taking out the second selection through the swing selection mechanism,
The second reduction mechanism has a second reduction milling cylinder coupled to the second conveyor and a second reduction forward transfer cylinder coupled to the second reduction milling cylinder, Wrapping and placing the No. 2 reduction milling cylinder in rear view,
The first cereal cylinder and the second reduced cereal cylinder are extended upward on the outer side of one side of the oscillating sorting mechanism, and left and right of the oscillating sorting mechanism with respect to the second reduced cereal cylinder. The second reduction forward transfer cylinder is offset and arranged in the width, and the feed start end side of the second reduction forward transfer cylinder is connected to the feed end side of the second reduction milling cylinder. Combine to do.   The threshing device has a structure including a handling cylinder and a processing cylinder for processing dust discharged from the handling cylinder, and the processing cylinder is disposed between the handling cylinder and the second reduction front transfer cylinder. The combine according to claim 1, wherein the combine is arranged.   The swing sorting mechanism has a swing sorter for sorting the spilled material from the handling cylinder, and the handle and the processing are disposed above a width in the left-right direction of the swing sorter. 3. The combine according to claim 2, wherein a cylinder is disposed, and the second reduction forward transfer cylinder is disposed above the upper surface of the swing sorter and below the axis of the processing cylinder.

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