JP5109947B2 - Threshing device - Google Patents

Threshing device Download PDF

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JP5109947B2
JP5109947B2 JP2008304502A JP2008304502A JP5109947B2 JP 5109947 B2 JP5109947 B2 JP 5109947B2 JP 2008304502 A JP2008304502 A JP 2008304502A JP 2008304502 A JP2008304502 A JP 2008304502A JP 5109947 B2 JP5109947 B2 JP 5109947B2
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dust
chamber
discharged
guide plate
sorting shelf
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JP2010124783A (en
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賢一朗 竹内
正美 大崎
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Iseki and Co Ltd
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Iseki and Co Ltd
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Description

本発明は、脱穀装置に関するものである。   The present invention relates to a threshing apparatus.

従来より、走行装置を備えた車体の前側に刈取装置を設け、車体の上側に脱穀装置を設け、該脱穀装置の右側に穀粒貯留装置を設け、脱穀装置の上部に扱胴を備えた扱室を設け、該扱室の左側にフィードチェンを設け、扱室の右側には排塵処理室を設け、該排塵処理室内に脱穀装置の背面視で反時計方向に回転する排塵処理胴を設け、扱室の後端部と排塵処理室の前端部とを連通口で連通させ、扱室及び排塵処理室の下方に揺動選別棚を設け、該揺動選別棚の前部下方に唐箕を設け、該唐箕の後側に1番移送螺旋を設け、該1番移送螺旋の後側に2番移送螺旋を設け、揺動選別棚の後部上方に排塵ファンを設けたコンバインが知られている。   Conventionally, a mowing device is provided on the front side of a vehicle body provided with a traveling device, a threshing device is provided on the upper side of the vehicle body, a grain storage device is provided on the right side of the threshing device, and a handling cylinder provided with a handling cylinder on the upper part of the threshing device. A dust chamber that rotates counterclockwise as viewed from the rear of the threshing device in the dust removal chamber. The rear end of the handling chamber and the front end of the dust removal treatment chamber communicate with each other through a communication port, and a swing sorting shelf is provided below the handling chamber and the dust removal treatment chamber. A combine provided with a red pepper on the side, a first transfer spiral on the rear side of the hot pepper, a second transfer spiral on the rear side of the first transfer spiral, and a dust exhaust fan above the rear of the swing sorting shelf It has been known.

このようなコンバインとして、下記特許文献1には、排塵処理室の後端部の底部を下方へ向けて開口させ、排塵処理室内の排塵物の全てを脱穀装置内部の揺動選別棚上に排出する構成が開示されている。
特許第2794800号公報
As such a combine, in Patent Document 1 below, the bottom of the rear end portion of the dust disposal chamber is opened downward, and all of the dust collected in the dust disposal chamber is swung in the threshing device. An arrangement for discharging is disclosed above.
Japanese Patent No. 2794800

上記特許文献1に開示された構成では、排塵処理室の後端部から、穀粒を含んだ細かな藁屑と共に、塊状になった大きな藁屑も一緒に揺動選別棚上に排出される。このため、揺動選別棚上の選別物量が増大し、充分な選別ができないまま、藁屑と共に穀粒が脱穀装置の外部に排出されてしまい、収穫損失を来たす問題があった。   In the configuration disclosed in the above-mentioned Patent Document 1, from the rear end of the dust removal processing chamber, together with fine swarf containing grains, large swarf that has been lumped together is also discharged onto the swing sorting shelf. The For this reason, there is a problem in that the amount of the sorted matter on the swing sorting shelf increases and the grain is discharged to the outside of the threshing device together with the sawdust without sufficient sorting, resulting in a harvest loss.

また、この問題を解決するために、排塵処理室から排出される排塵物を直接機外へ排出する構成を採った場合には、この排塵物が隣接する未刈地側の穀稈に降りかかり、この未刈地側の穀稈列の刈取作業時に、排塵物ごと穀稈を刈り取ってしまい、脱穀負荷の増大や選別不良などの障害が発生する原因となる。   In addition, in order to solve this problem, when adopting a configuration in which the dust discharged from the dust processing chamber is directly discharged to the outside of the machine, the grain mash on the uncut land side where the dust is adjacent At the time of the harvesting operation of the culm row on the uncut ground side, the culm is harvested together with the dust, which causes an increase in threshing load and failure such as poor sorting.

また、排塵処理室から排出されて圃場面に堆積した排塵物の層が左右方向で均一にならず、次期の耕耘作業において藁屑の鋤き込み量が均一にならず、移植された苗の生育状態が揃いにくくなる問題がある。   In addition, the layer of the dust discharged from the dust disposal chamber and deposited on the field scene was not uniform in the left-right direction, and the amount of sawdust in the next cultivation work was not uniform and transplanted There is a problem that the growth state of the seedlings is difficult to align.

本発明は、上述した課題を解決するために、次の如き技術手段を講じた。
すなわち、請求項1記載の発明は、走行装置(2)を備えた車体(1)の前側に刈取装置(3)を設け、車体(1)の上側に脱穀装置(4)を設け、該脱穀装置(4)の右側に穀粒貯留装置(G)を設け、前記脱穀装置(4)の上部に扱胴(7)を備えた扱室(8)を設け、該扱室(8)の左側にフィードチェン(11)を設け、扱室(8)の右側には排塵処理室(18)を設け、該排塵処理室(18)内に脱穀装置(4)の背面視で反時計方向に回転する排塵処理胴(17)を設け、前記扱室(8)の後端部と排塵処理室(18)の前端部とを連通口(R)で連通させ、前記扱室(8)及び排塵処理室(18)の下方に揺動選別棚(40)を設け、該揺動選別棚(40)の前部下方に唐箕(41)を設け、該唐箕(41)の後側に1番移送螺旋(42)を設け、該1番移送螺旋(42)の後側に2番移送螺旋(43)を設け、揺動選別棚(40)の後部上方に排塵ファン(30)を設け、前記排塵処理室(18)の後端左側部に排塵物を揺動選別棚(40)の後部上方へ排出する第1排塵口(21)を設け、該第1排塵口(21)に、第1排塵口(21)から排出される排塵物を右側後方へ流下案内して圃場面へ落下させる第1傾斜面(29a)を備えた第1排出案内板(29)を設け、前記排塵処理室(18)の後端右側部に排塵物を脱穀装置(4)の後方へ排出する第2排塵口(23)を設け、該第2排塵口(23)に、第2排塵口(23)から排出される排塵物を右側後方へ流下案内して圃場面へ落下させる第2傾斜面(24a)と、第2排塵口(23)から排出される排塵物を脱穀装置(4)の直後方へ流下案内して圃場面へ落下させる第3傾斜面(24b)とを備える第2排出案内板(24)を設けたことを特徴とするコンバインとする。
The present invention has taken the following technical means in order to solve the above-described problems.
That is, the invention according to claim 1 is provided with a reaping device (3) on the front side of the vehicle body (1) provided with the traveling device (2), and a threshing device (4) on the upper side of the vehicle body (1). A grain storage device (G) is provided on the right side of the device (4), a handling chamber (8) having a handling cylinder (7) is provided on the upper part of the threshing device (4), and a left side of the handling chamber (8). Is provided with a feed chain (11), a dust removal chamber (18) is provided on the right side of the handling chamber (8), and the dust removal chamber (18) is counterclockwise as viewed from the rear of the threshing device (4). And a rear end portion of the handling chamber (8) and a front end portion of the dust disposal chamber (18) are communicated with each other through a communication port (R). ) And a dust sorting chamber (18), a swing sorting shelf (40) is provided, and a Kara (41) is provided below the front of the swing sorting shelf (40), and the rear side of the Kara (41). No. 1 transfer A swirl (42), a second transfer helix (43) is provided on the rear side of the first transfer helix (42), a dust exhaust fan (30) is provided above the swing sorting shelf (40), A first dust exhaust port (21) for discharging the dust to the rear upper part of the swing sorting shelf (40) is provided on the left side of the rear end of the dust exhaust processing chamber (18), and the first dust exhaust port (21). Provided with a first discharge guide plate (29) provided with a first inclined surface (29a) for guiding the dust discharged from the first dust outlet (21) to flow downward to the right and dropping it onto the field scene. In addition, a second dust exhaust port (23) for exhausting dust to the rear of the threshing device (4) is provided on the right side of the rear end of the dust exhaust processing chamber (18), and the second dust exhaust port (23) is provided. , The second inclined surface (24a) for guiding the dust discharged from the second dust outlet (23) to flow downward to the right and dropping it onto the field scene, and the second dust outlet (23). Excretion And combine, characterized in that a third inclined surface for dropping into the field surface flows down guided towards immediately following things the threshing device (4) (24b) and a second discharge guide plate provided with (24).

この構成により、扱室(8)内から連通口(R)を経て排塵処理室(18)内へ引き継がれ、この排塵処理室(18)内で処理された処理物のうち、藁屑等の細かい排塵物は、排塵処理胴(17)の回転によって、排塵処理室(18)の後端左側部に設けた第1排塵口(21)から揺動選別棚(40)の後部上方へ投げ出される。そして、この排塵物は、第1排出案内板(29)の第1傾斜面(29a)上を流下し、既刈地側の圃場面へ落下する。   With this configuration, among the processed materials that are handed over from the inside of the handling chamber (8) through the communication port (R) to the dust disposal chamber (18) and processed in the dust disposal chamber (18), The fine dust discharged from the first dust outlet (21) provided on the left side of the rear end of the dust processing chamber (18) is rotated by the rotation of the dust processing cylinder (17). It is thrown out to the rear upper part. And this dust waste material flows down on the 1st inclined surface (29a) of a 1st discharge | release guide plate (29), and falls to the farm scene on the already-cut ground side.

また、塊状になった大きな藁屑等の排塵物は、排塵処理胴(17)に付き回りして、排塵処理室(18)の後端右側部に設けた第2排塵口(23)から脱穀装置(4)の後方へ排出される。そして、この排塵物は、第2排出案内板(24)の第2傾斜面(24a)上および第3傾斜面(24b)上を流下し、脱穀装置(4)の直後方および既刈地側の圃場面へ落下する。   In addition, a large dusty waste such as swarf is attached to the dust removal cylinder (17), and a second dust discharge port provided on the right side of the rear end of the dust treatment chamber (18) ( 23) to the rear of the threshing device (4). And this dust waste material flows down on the 2nd inclined surface (24a) and the 3rd inclined surface (24b) of a 2nd discharge | release guide plate (24), the right side of a threshing apparatus (4), and a cutting ground Fall to the side farm scene.

請求項2記載の発明は、前記脱穀装置(4)の背面視において前記第1排出案内板(29)と第2排出案内板(24)との間に間隙部(K)を形成し、該間隙部(K)に、前記第1排塵口(23)から排出される排塵物を揺動選別棚(40)上へ流下する排塵物と該揺動選別棚(40)上へ流下せずに第2排出案内板(24)上へ引継がれる排塵物とに分離する複数のガイド杆(28)を配置したことを特徴とする請求項1記載のコンバインとする。   The invention according to claim 2 forms a gap (K) between the first discharge guide plate (29) and the second discharge guide plate (24) in the rear view of the threshing device (4), In the gap (K), the dust discharged from the first dust outlet (23) flows down onto the swing sorting shelf (40) and flows down onto the swing sorting shelf (40). The combine according to claim 1, wherein a plurality of guide rods (28) that are separated from the dust discharged to the second discharge guide plate (24) without being disposed are arranged.

この構成により、第1排塵口(23)から排出される排塵物が複数のガイド杆(28)上で選別され、主に穀粒が揺動選別棚(40)上へ流下して回収される。また、ガイド杆(28)上から落下しない藁屑等の排塵物は、該ガイド杆(28)上から第2排出案内板(24)へ引き継がれ、該第2排出案内板(24)の第3傾斜面(24b)上または第2傾斜面(24a)上を流下し、圃場面へ落下する。   With this configuration, the dust discharged from the first dust outlet (23) is sorted on the plurality of guide rods (28), and the grains mainly flow down to the swing sorting shelf (40) and collected. Is done. Further, dust and other dusts that do not fall from the guide rod (28) are taken over from the guide rod (28) to the second discharge guide plate (24), and the second discharge guide plate (24) It flows down on the third inclined surface (24b) or the second inclined surface (24a), and falls to the field scene.

請求項1記載の発明によると、排塵処理室(18)の後端左側部に設けた第1排塵口(21)から排出される排塵物と、排塵処理室(18)の後端右側部に設けた第2排塵口(23)から排出される排塵物とを、脱穀装置(4)の直後方および既刈地側の圃場面へ落下させることができる。これによって、揺動選別棚(40)上の藁屑が減少し、該揺動選別棚(40)での揺動選別を効率よく行なえ、選別物中の穀粒が藁屑と共に機外に排出される収穫損失を低減でき、脱穀選別作業の精度と能率を向上させることができる。   According to the first aspect of the present invention, the dust discharged from the first dust outlet (21) provided on the left side of the rear end of the dust disposal chamber (18), and the rear of the dust disposal chamber (18). Dust discharged from the second dust discharge port (23) provided on the right end of the end can be dropped to the field scene immediately after the threshing device (4) and on the already-cut ground side. As a result, the swarf on the swaying sorting shelf (40) is reduced, and the swaying sorting on the swaying sorting shelf (40) can be efficiently performed, and the grains in the selected matter are discharged together with the swarf to the outside of the machine. Harvesting loss can be reduced, and the accuracy and efficiency of the threshing sorting operation can be improved.

また、排塵処理室(18)からの排塵物を直後方または既刈地側の圃場面へ落下させるため、未刈地側の穀稈に排塵物がかかりにくく、隣接する穀稈列の刈取作業時に、排出された藁屑の脱穀装置(4)への再供給を抑えて、脱穀負荷の増加や選別不良の発生を少なくし、コンバインによる刈取脱穀作業の能率を向上させることができる。また、排塵処理室(18)からの排塵物が直後方から既刈地側の圃場面にわたって拡散された状態で堆積するため、次期の耕耘作業において藁屑の鋤き込み量を均一化でき、移植された苗の生育状態を揃いやすくすることができる。   In addition, in order to drop the dust from the dust disposal chamber (18) to the field immediately after or to the farmed scene on the already-cut ground, it is difficult for the dust to be applied to the grain on the uncut-ground side, and adjacent grain rows The re-feeding of the discharged swarf to the threshing device (4) can be suppressed at the time of cutting, reducing the increase in threshing load and the occurrence of poor sorting, and improving the efficiency of the cutting and threshing work by the combine. . In addition, since dust collected from the dust disposal chamber (18) accumulates in the state of being diffused from the right side to the field on the already-harvested land, the amount of sawdust introduced in the next cultivation work is made uniform. It is possible to easily align the growth state of the transplanted seedlings.

請求項2記載の発明によると、上記請求項1記載の発明の効果に加え、排塵処理室(18)の後端部から排出される排塵物中に混在した穀粒を揺動選別棚(40)上へ流下させて回収することができ、収穫損失を更に低減することができる。   According to the invention described in claim 2, in addition to the effect of the invention described in claim 1, the grains mixed in the dust discharged from the rear end of the dust processing chamber (18) are subjected to the swing sorting shelf. (40) It can be recovered by flowing down, and the harvest loss can be further reduced.

以下、本発明の実施例を図面に基づいて具体的に説明する。
まず、図1、図2、図3に基づき、コンバインの機体の構成について述べる。
クロ−ラを有する走行装置2を備えた車体1の前側に、昇降可能な刈取装置3を設け、この車体1の上側に脱穀装置4を搭載し、この脱穀装置4の右側にホッパ式の穀粒貯留装置Gを設け、脱穀装置4の後側には排藁カッターCを設ける。
Embodiments of the present invention will be specifically described below with reference to the drawings.
First, the structure of the combine body will be described with reference to FIGS.
A mowing device 3 that can be moved up and down is provided on the front side of a vehicle body 1 having a traveling device 2 having a crawler, and a threshing device 4 is mounted on the upper side of the vehicle body 1. A grain storage device G is provided, and a waste cutter C is provided on the rear side of the threshing device 4.

前記刈取装置3には、穀稈を分草する分草体3aと、分草された穀稈を引き起こす引起装置3bと、引き起こされた穀稈を掻き込む掻込装置(図示省略)と、掻き込まれた穀稈を刈り取る刈刃装置3cと、刈り取られた穀稈を後上方へ搬送する搬送装置3dを備える。これらの装置を前下がり傾斜した支持フレーム3eに一体に支持し、この支持フレーム3eの後上端部に設けた横軸を中心に、上下回動する構成とする。   The reaping device 3 includes a weed body 3a for weeding the cereal, a pulling device 3b for causing the weed cereal, a scraping device (not shown) for scraping the induced culm, and a scraping A cutting blade device 3c that cuts away the harvested corn straw and a transport device 3d that conveys the harvested corn straw rearward and upward are provided. These devices are integrally supported by a support frame 3e that is inclined forwardly and is configured to rotate up and down around a horizontal axis provided at a rear upper end portion of the support frame 3e.

また、該刈取装置3の後側には、操縦席5と主変速レバーLと副変速レバーMとスロットルレバーNと操向レバーOを備えた操縦部Pを設ける。前記操縦席5の下側には、エンジンEを搭載する。このエンジンEの燃焼用の外気は、機体上方へ突出した上流側のエアクリーナE1から下流側のエアクリーナE2を経て吸気される構成とする。   Further, on the rear side of the reaping device 3, a control section P including a cockpit 5, a main transmission lever L, an auxiliary transmission lever M, a throttle lever N, and a steering lever O is provided. An engine E is mounted below the cockpit 5. The outside air for combustion of the engine E is sucked from the upstream air cleaner E1 protruding upward from the fuselage through the downstream air cleaner E2.

前記穀粒貯留装置Gは、3連の穀粒排出シュータG1を備えたホッパーであり、車体1上における穀粒貯留装置Gの下方には、籾袋を載せるキャリアG2を設ける。このキャリアG2の後部には燃料タンクG3を搭載し、キャリアG2の外側には、機体前後方向の軸芯を中心として開閉自在の補助キャリアG4を設ける。また、穀粒貯留装置Gを支持する支持フレームG5に、背凭れG6を上下回動自在に取り付ける。この背凭れG6は、補助キャリアG4上に搭乗した補助作業者の体を支えるためのものである。   The grain storage device G is a hopper provided with a triple grain discharge shooter G1, and below the grain storage device G on the vehicle body 1 is provided a carrier G2 on which a straw bag is placed. A fuel tank G3 is mounted on the rear portion of the carrier G2, and an auxiliary carrier G4 that can be opened and closed about an axis in the longitudinal direction of the machine body is provided outside the carrier G2. Further, a backrest G6 is attached to a support frame G5 that supports the grain storage device G so as to be rotatable up and down. This backrest G6 is for supporting the body of the auxiliary worker who has boarded on the auxiliary carrier G4.

つぎに、図4、図5に基づき、脱穀装置4の構成について説明する。
扱胴7を、脱穀装置4上部の扱室8の内部に回転自在に支持し、この扱胴7の下半周部に沿って受網9を張設する。10は扱室8の上方部を覆う扱胴カバ−であり、扱胴7の軸芯方向に平行な軸芯回りに揺動開閉可能に取り付ける。
Next, the configuration of the threshing apparatus 4 will be described based on FIGS. 4 and 5.
The handling cylinder 7 is rotatably supported inside a handling chamber 8 above the threshing device 4, and a receiving net 9 is stretched along the lower half of the handling cylinder 7. A handle cylinder cover 10 covers an upper portion of the handling chamber 8 and is attached so as to be able to swing open and close around an axis parallel to the axis direction of the handle cylinder 7.

扱室8の扱口側には穀稈を挟持搬送するフィ−ドチェン11とこの上側に対設する挟持レ−ル11aを設ける。この挟持レ−ル11aは扱胴カバ−10側に装着し、この扱胴カバ−10と共に揺動して開閉する構成とする。扱室8の終端側には多量の藁屑や未処理物を含む排塵処理物を下方に落下させる排塵落下口12を設ける。   A feed chain 11 for sandwiching and conveying the cereal and a sandwiching rail 11a facing the upper side are provided on the handling port side of the handling chamber 8. The sandwiching rail 11a is mounted on the side of the barrel cover 10 and swings with the barrel cover 10 to open and close. A dust discharge port 12 is provided on the terminal side of the handling chamber 8 for dropping a waste treatment product including a large amount of sawdust and untreated material downward.

前記フィ−ドチェン11の設置側とは反対の扱室8の一側に2番処理室15を設け、この2番処理室15内に、2番処理胴14を、背面視で反時計方向に回転自在に支持する。
また、2番処理室15の後方に排塵処理室18を設け、この排塵処理室18内に、前記2番処理胴14と同一軸芯で同方向に回転する排塵処理胴17を回転自在に支持する。この排塵処理胴17の外周には、連続した螺旋体と、この螺旋体の外周縁部に取り付けた処理歯とからなる螺旋処理歯16を取り付ける。そして、排塵処理胴17の左側半周を取り囲むように、格子状の排塵受網27を設ける。
A second processing chamber 15 is provided on one side of the handling chamber 8 opposite to the side where the feed chain 11 is installed, and the second processing cylinder 14 is placed in the second processing chamber 15 in a counterclockwise direction when viewed from the back. Support for rotation.
In addition, a dust treatment chamber 18 is provided behind the second treatment chamber 15, and a dust treatment cylinder 17 that rotates in the same direction with the same axis as the second treatment cylinder 14 is rotated in the dust treatment chamber 18. Support freely. On the outer periphery of the dust removal processing cylinder 17, a spiral processing tooth 16 including a continuous spiral body and a processing tooth attached to the outer peripheral edge of the spiral body is attached. A grid-like dust receiving net 27 is provided so as to surround the left half of the dust processing cylinder 17.

前記排塵落下口12と前後方向で略同位置となる扱室8の後端部の横側部と、排塵処理室18の前端部の横側部とを、連通口Rで連通させる。この連通口Rには、排塵処理胴17の始端部に固着された螺旋形状の取込羽根19を臨ませ、この取込羽根19によって、扱室8側から排塵処理室18内への排塵物の取込みが円滑に行なわれる構成とする。   The lateral side portion of the rear end portion of the handling chamber 8 that is substantially in the same position in the front-rear direction as the dust discharge port 12 and the lateral side portion of the front end portion of the dust removal treatment chamber 18 are communicated with each other through the communication port R. At this communication port R, a spiral intake blade 19 fixed to the start end of the dust removal treatment cylinder 17 is faced, and the intake blade 19 allows the treatment chamber 8 to enter the dust treatment chamber 18. A configuration is adopted in which dust is taken in smoothly.

扱室8および排塵処理室17の下方には、揺動選別棚40を設ける。
この揺動選別棚40は、扱室8からの脱穀処理後の処理物と、排塵処理室17からの排塵処理物を受け入れて揺動移送しながら篩い選別するものであり、選別方向上手側から移送棚44、チャフシーブ45、ストローラック46の順に配置し、チャフシーブ45の下方にグレンシーブ47を設けて構成する。唐箕41及び排塵フアン30による選別風と揺動との共同作用によって、扱室8及び排塵処理室17から漏下してきた処理物を受け入れて揺動移送しながら篩い選別する構成である。
A swing sorting shelf 40 is provided below the handling chamber 8 and the dust disposal chamber 17.
The swing sorting shelf 40 receives the processed product after the threshing process from the handling chamber 8 and the dust processed product from the dust processing chamber 17 and screens them while swinging and transferring them. A transfer shelf 44, a chaff sheave 45, and a stroll rack 46 are arranged in this order from the side, and a glenshave 47 is provided below the chaff sheave 45. By the combined action of the sorting wind and the rocking by the tang 41 and the dust collecting fan 30, the processed material leaked from the handling chamber 8 and the dust collecting processing chamber 17 is received and screened while being rocked and transferred.

そして、揺動選別棚40の下方には、選別方向の上手側から順に、唐箕41と、1番移送螺旋42と、2番移送螺旋43を設け、揺動選別棚40の後部上方に、横断流ファン型の排塵ファン30を設ける。1番移送螺旋42で回収された穀物は1番揚穀装置42aを介して穀粒貯留装置G内に収容する。また、2番移送螺旋43で回収された2番物は、2番揚穀装置43aを介して2番処理室15の後端部へ還元する。2番処理室15内では、2番物が2番処理胴14によって処理されながら前方へ搬送され、2番処理室15の前端部に設けた落下口15aから揺動選別棚40の移送棚44上に落下して選別される。   In the lower part of the swing sorting shelf 40, a red pepper 41, a first transfer spiral 42, and a second transfer spiral 43 are provided in order from the upper side in the sorting direction. A flow fan type dust exhaust fan 30 is provided. Grains collected by the first transfer spiral 42 are accommodated in the grain storage device G through the first cerealing device 42a. Moreover, the 2nd thing collect | recovered with the 2nd transfer spiral 43 returns to the rear-end part of the 2nd process chamber 15 via the 2nd cerealing apparatus 43a. In the second processing chamber 15, the second item is conveyed forward while being processed by the second processing cylinder 14, and the transfer shelf 44 of the swing sorting shelf 40 from the drop port 15 a provided at the front end of the second processing chamber 15. It falls down and is sorted.

図1〜図3に示すように、唐箕41の左右に設けた外気吸入口72の外側に、この外気吸入口72から吸い込まれる外気の量を調節する遮蔽板73を、回動軸74で脱穀装置4の機枠側に回動自在に取り付ける。この遮蔽板73が外気吸入口72に重なると、外気吸入口72から吸い込まれる外気の量が減少し、唐箕41から吹き出される選別風の風量が減少する構成とする。この遮蔽板73における回動軸74の反対側には、ワイヤー75の一端を取り付け、このワイヤー75の他端を、刈取装置3の支持フレーム3eと一体で上下回動するアーム76の端部に取り付ける。この構成により、圃場の一辺を刈り終えてコンバインを旋回させる際に、刈取装置3を上昇させると、唐箕41から吹き出す選別風の風量が低下し、揺動選別棚40上の藁屑が、穀粒と共に脱穀装置4の外部へ飛散するのを防止できる。   As shown in FIGS. 1 to 3, on the outside of the outside air inlet 72 provided on the left and right sides of the red pepper 41, a shielding plate 73 for adjusting the amount of outside air sucked from the outside air inlet 72 is threshed by a rotating shaft 74. It is attached to the machine frame side of the device 4 so as to be freely rotatable. When the shielding plate 73 overlaps the outside air inlet 72, the amount of outside air sucked from the outside air inlet 72 is reduced, and the amount of the selection air blown from the tang 41 is reduced. One end of a wire 75 is attached to the opposite side of the rotating shaft 74 in the shielding plate 73, and the other end of the wire 75 is attached to the end of an arm 76 that rotates up and down integrally with the support frame 3 e of the cutting device 3. Install. With this configuration, when the harvesting device 3 is raised when the side of the field is cut and the combine is turned, the amount of the sorting wind blown from the tang 41 decreases, and the waste on the swing sorting shelf 40 It can prevent scattering to the exterior of the threshing apparatus 4 with a grain.

図4〜図7に示すように、排塵処理室17の後端左側部には、排塵処理室17の後端部まで送られてきた排塵物を、後述する揺動選別棚40の後部上方へ排出する第1排塵口21を開口させる。この第1排塵口21は、前記排塵受網27の後端の後側を開放して形成する。   As shown in FIGS. 4 to 7, on the left side of the rear end of the dust disposal chamber 17, the dust that has been sent to the rear end of the dust disposal chamber 17 is placed on a swing sorting shelf 40 described later. The first dust outlet 21 for discharging the rear upper part is opened. The first dust outlet 21 is formed by opening the rear side of the rear end of the dust receiving net 27.

また、排塵処理胴17の終端には排出羽根20を設ける。この実施例では、排出羽根20は1枚であるが、排塵処理胴17の外周上に複数枚設けてもよい。これにより、排塵処理胴17の背面視で反時計方向の回転によって、第1排塵口21まで送られてきた排塵物のうち、穀粒を含んだ藁屑等の細かい排塵物を、排出羽根20で揺動選別棚40の後端部上方へ投擲する構成とする。   In addition, a discharge blade 20 is provided at the end of the dust removal treatment cylinder 17. In this embodiment, one discharge blade 20 is provided, but a plurality of discharge blades 20 may be provided on the outer periphery of the dust removal processing cylinder 17. As a result, fine dust such as swarf containing grains among the dust that has been sent to the first dust outlet 21 by rotating counterclockwise in the rear view of the dust disposal cylinder 17. In this case, the discharge blade 20 is used for throwing the upper part of the swing sorting shelf 40 upward.

また、前記第1排塵口21には、この第1排塵口21から排出される排塵物を右側後方へ流下案内して圃場面へ落下させる第1傾斜面29aを備えた第1排出案内板29を設ける。該第1排出案内板29は、揺動選別棚40の終端側上方に配置した排塵ファン30の側板31に基部を固定し、第1排塵口21側に向けて突設させて設ける。   Further, the first dust outlet 21 is provided with a first discharge surface provided with a first inclined surface 29a that guides the dust discharged from the first dust outlet 21 downward to the right and drops it to the field scene. A guide plate 29 is provided. The first discharge guide plate 29 is provided with a base fixed to a side plate 31 of a dust exhaust fan 30 disposed above the terminal end side of the swing sorting shelf 40 and projecting toward the first dust discharge port 21 side.

この第1排出案内板29の第1傾斜面29aは、後下がり方向および右下がり方向に三次元的に傾斜する。これによって、第1排塵口21から排出されて排出羽根20で投擲された排塵物の大半を、揺動選別棚40上へ落下させることなく、直接機外へ排出する。   The first inclined surface 29a of the first discharge guide plate 29 is three-dimensionally inclined in the rearward and downward direction. As a result, most of the dust discharged from the first dust outlet 21 and thrown by the discharge vanes 20 is directly discharged outside the apparatus without dropping onto the swing sorting shelf 40.

一方、排塵処理室18の後端右側の外側壁(右側板)22部には、排塵処理室18の終端まで送られてきた藁や塊状になった大きな藁屑などを脱穀装置4の後方へ排出する第2排塵口23を設ける。   On the other hand, on the outer wall (right side plate) 22 on the right side of the rear end of the dust removal processing chamber 18, the threshing apparatus 4 is configured to remove the straw that has been sent to the end of the dust removal treatment chamber 18 or the large swarf that has been formed into a lump. A second dust exhaust port 23 for discharging backward is provided.

この第2排塵口23には、第2排出案内板24を設ける。この第2排出案内板24には、第2傾斜面24aと第3傾斜面24bとを形成する。
図7に示すように、第2傾斜面24aは、板材を段階的に折り曲げて形成した第2排出案内板24の一部であり、この第2傾斜面24aの縦面部は、後部ほど右側に偏倚した案内面に形成する。また、第2傾斜面24aの底面部は、後述する第3傾斜面24bと連続性を持たせるために、屈折させ、段階的に傾斜姿勢を変更させる。
The second dust discharge port 23 is provided with a second discharge guide plate 24. The second discharge guide plate 24 is formed with a second inclined surface 24a and a third inclined surface 24b.
As shown in FIG. 7, the second inclined surface 24a is a part of the second discharge guide plate 24 formed by bending the plate material stepwise, and the vertical surface portion of the second inclined surface 24a is located on the right side as the rear portion. Formed on a biased guide surface. Further, the bottom surface portion of the second inclined surface 24a is refracted to change the inclined posture in a stepwise manner in order to have continuity with a third inclined surface 24b described later.

第3傾斜面24bは、後下がり方向にのみ傾斜し、左右方向へは傾斜させない。
これによって、排塵処理胴17の回転に付き回りして第2排塵口23から排出された排塵物の略全量を、揺動選別棚40上へ落下させることなく、直接、既刈地側の圃場面へ落下させる。即ち、排出案内板24の第2傾斜面24aによって、排塵物を右側後方へ流下案内して圃場面へ落下させる。また、排出案内板24の第3傾斜面24bによって、排塵物を排塵処理胴17の軸芯方向後方側、即ち脱穀装置4の直後方へ流下案内して圃場面へ落下させる。
The third inclined surface 24b is inclined only in the rearward downward direction and is not inclined in the left-right direction.
As a result, almost the entire amount of the dust discharged around the rotation of the dust processing cylinder 17 and discharged from the second dust outlet 23 is directly dropped on the already cut ground without dropping onto the swing sorting shelf 40. Drop to the side farm scene. That is, the second inclined surface 24a of the discharge guide plate 24 guides the discharged dust to the right rear and drops it to the farm scene. Further, the third inclined surface 24b of the discharge guide plate 24 guides the discharged dust to the rear side in the axial direction of the dust processing cylinder 17, that is, immediately after the threshing device 4 and drops it to the field scene.

また、排出案内板24の第2傾斜面24aの始端位置を、前後方向において排塵受網27の終端位置と略同じ位置に設定する。これによって、排塵処理胴17の螺旋処理歯16と排塵受網27とでこなされた後の排塵物を、排出案内板24の第2傾斜面24aによって、より右側に拡散して排出することができる。   In addition, the start end position of the second inclined surface 24 a of the discharge guide plate 24 is set to a position substantially the same as the end position of the dust collection screen 27 in the front-rear direction. As a result, the dust discharged after the spiral processing teeth 16 of the dust processing cylinder 17 and the dust receiving net 27 are diffused to the right by the second inclined surface 24a of the discharge guide plate 24 and discharged. can do.

図8に示すように、前記排塵処理室18内には、外側壁22の上部の一部を上方に向けて膨出形成し、所定量の処理物が入り込む程度の膨出空間Sを形成する。そして、この膨出空間S内に数個の切刃26を設けて藁や塊状になった藁屑などを切断して分離するように構成している。これにより、切刃26を排塵処理物に作用させ、確実に切断分離することができる。   As shown in FIG. 8, a part of the upper portion of the outer wall 22 bulges upward in the dust removal treatment chamber 18 to form a bulge space S enough to allow a predetermined amount of processed material to enter. To do. And several cutting blades 26 are provided in this bulging space S, and it is comprised so that a slag and the lump etc. which became the lump shape may be cut and separated. Thereby, the cutting blade 26 can be made to act on a dust removal processed material, and it can cut | disconnect reliably.

図4〜図7に示すように、排塵受網27の後端部には、2本の丸棒状のガイド杆28を、排塵受網27の周方向に位相を変え、脱穀装置4の背面視において第1排出案内板29と第2排出案内板24との間の間隙部Kに、所定の間隔をおいて配置する。   As shown in FIGS. 4 to 7, two round bar-shaped guide rods 28 are disposed at the rear end portion of the dust receiving net 27, changing the phase in the circumferential direction of the dust receiving net 27, and In the rear view, the gaps K between the first discharge guide plate 29 and the second discharge guide plate 24 are arranged at a predetermined interval.

この2本のガイド杆28は、排塵処理胴17の回転方向に向かうように排塵処理胴17の軸芯に対して斜めに配置する。即ち、この2本のガイド杆28は、後下がり傾斜すると共に、後部側ほど右側(既刈地側)に偏倚した姿勢とする。尚、前記第1排出案内板29の内側端縁は、このガイド杆28に沿うように設ける。また、この2本のガイド杆28のうち、下側に位置するガイド杆28の自由端部は、第3傾斜面24bの上方に配置する。   The two guide rods 28 are disposed obliquely with respect to the axial center of the dust removal processing cylinder 17 so as to be directed in the rotation direction of the dust collection processing cylinder 17. That is, the two guide rods 28 are inclined so as to be rearwardly lowered and biased toward the right side (the already cut ground side) toward the rear side. The inner edge of the first discharge guide plate 29 is provided along the guide rod 28. Of the two guide rods 28, the free end portion of the guide rod 28 positioned on the lower side is disposed above the third inclined surface 24b.

これにより、第1排塵口21から排出される排塵物を、この2本のガイド杆28の間の間隔部によって選別し、穀粒を含んだ細かい排塵物を揺動選別棚40のストローラック46上に漏下させ、藁屑等の大きな排塵物の漏下を規制して右側の第2排出案内板24上に引継ぎ案内して圃場面へ流下案内する。   As a result, the dust discharged from the first dust outlet 21 is sorted out by the interval between the two guide rods 28, and the fine dust containing the grains is separated from the swing sorting shelf 40. It is allowed to flow down on the stroller 46, restricts the leakage of large dusts such as sawdust, and takes over the right second discharge guide plate 24 to guide it down to the field scene.

また、図7に示すように、前記第2排塵口23側の第2排出案内板24の下端部と揺動選別棚40の側面シール32とを略同一の高さに設定する。これによって、藁屑の選別室内への浸入を防止でき、揺動選別棚40の側面と脱穀装置4の壁面との間のシール性能を維持しながら、第2排出案内板24の第3傾斜面24bを急傾斜姿勢にすることができ、排塵物の流下案内を円滑に行える
以上のように構成された刈取脱穀装置についてその作用を説明する。
Further, as shown in FIG. 7, the lower end portion of the second discharge guide plate 24 on the second dust outlet 23 side and the side seal 32 of the swing sorting shelf 40 are set at substantially the same height. As a result, intrusion of sawdust into the sorting chamber can be prevented, and the third inclined surface of the second discharge guide plate 24 is maintained while maintaining the sealing performance between the side surface of the swing sorting shelf 40 and the wall surface of the threshing device 4. The operation of the threshing apparatus for cutting and threshing configured as described above will be described.

まず、圃場の穀稈は、機体の前部の刈取装置3によって刈取られ、後上方に搬送されてフィ−ドチェン11に受け継がれ、脱穀装置4に供給される。この穀稈は、株元をフィ−ドチェン11に挾持されて搬送されながら、穂先部分が扱室8内に供給され、回転している扱胴7によって脱穀作用を受ける。このようにして処理された脱穀処理物は、回転している扱胴7によって持ち回りされて、更に、脱粒処理作用を受け、受網9の目合いから揺動選別棚40上に漏下し、揺動選別作用を受ける。   First, the grain culm is harvested by the harvesting device 3 at the front part of the machine body, conveyed rearward and upward, inherited by the feed chain 11, and supplied to the threshing device 4. As for this cereal, while the stock is held by the feed chain 11 and conveyed, the tip portion is supplied into the handling chamber 8 and is subjected to the threshing action by the rotating handling cylinder 7. The threshing processed material processed in this way is carried around by the rotating handling cylinder 7 and is further subjected to a threshing processing action, leaking from the mesh of the receiving net 9 onto the swing sorting shelf 40, Subject to rocking selection.

この際、扱室8の前端側で脱穀処理された処理物は、移送棚44上に落下して後方へ揺動移送され、チャフシ−ブ45を構成している複数枚のシ−ブ板の相互間にある選別間隔から漏下しない処理物は、チャフシ−ブ45上に達する。また、扱室8の後端部に至った排塵処理物は、排塵落下口12から下方のチャフシーブ45上に落下するものと、連通口Rを経て排塵処理室18内へ送られて排塵処理胴17により処理されるものとに分かれる。そして、チャフシーブ45上に落下した排塵処理物は、チャフシ−ブ45の選別間隔を漏下しながら風選作用を受ける。   At this time, the processed product that has been threshed on the front end side of the handling chamber 8 falls on the transfer shelf 44 and is oscillated and transferred rearward, so that a plurality of sheave plates constituting the chaff sheave 45 are formed. Processed material that does not leak from the sorting interval between them reaches the chaff sheave 45. In addition, the dust disposal product that has reached the rear end of the handling chamber 8 is sent into the dust disposal chamber 18 via the communication port R and the one that falls on the lower chaff sheave 45 from the dust ejection port 12. It is divided into those to be processed by the dust removal processing cylinder 17. The dust-removed processed material that has fallen on the chaff sheave 45 is subjected to a wind-selective action while leaking the separation interval of the chaff sheave 45.

チャフシ−ブ45から漏下するものはグレンシーブ47上に落下し、このグレンシーブ47で篩い選別されながら風選作用を受ける。このとき、唐箕41は、起風した選別風を選別室内に吹き込み、この選別風は排塵ファン30によって脱穀装置4の外部へ吸い出される。   What leaks from the chaff sheave 45 falls onto the grain sieve 47 and is subjected to a wind-selective action while being screened and sorted by the grain sieve 47. At this time, the tangled rice 41 blows up the raised sorting wind into the sorting chamber, and the sorted wind is sucked out of the threshing device 4 by the dust exhaust fan 30.

このようにして、処理物は、揺動選別作用と選別風による風選作用との共同作用を受けながら選別されて、1番物(精粒)、2番物、排塵物とに選別分離され、1番物はグレンシ−ブ47で篩い選別された後、1番移送螺旋42の受樋内に落下して収集され、1番揚穀装置42aによって揚穀されて穀粒貯留装置G内に投入される。2番物は2番移送螺旋43から2番揚穀装置43aによって揚穀されて2番処理室15内に還元され再処理される。そして、細かい排塵物は排塵ファン30によって吸塵され、脱穀装置4の外部に排出され、ストロ−ラック46上から漏下しない大きな排塵物は、揺動選別棚40の後端部から脱穀装置4の外部へ排出される。   In this way, the processed material is sorted while receiving the cooperative action of the oscillating sorting action and the wind sorting action by the sorting wind, and sorted into the first (fine grain), the second, and the dust. The first product is sieved and sorted by the grain 47, and then dropped and collected in the receptacle of the first transfer spiral 42, and is cerealed by the first cerealing device 42a and stored in the grain storage device G. It is thrown into. The second product is cerealed from the second transfer spiral 43 by the second cerealing device 43a, and is reduced into the second processing chamber 15 and reprocessed. Fine dust is sucked by the dust fan 30 and discharged to the outside of the threshing device 4, and large dust that does not leak from the straw rack 46 is threshed from the rear end of the swing sorting shelf 40. It is discharged to the outside of the device 4.

一方、扱室8の後端から連通口Rを経て排塵処理室18内に取り込まれた排塵処理物は、後方に移送されながら排塵処理胴17の外周の螺旋処理歯16によってこなされ、排塵受網27の濾過穴より漏下し、チャフシーブ45上に還元される。また、排塵処理室18内では、螺旋処理歯16と切刃26とによって排塵処理室18内を持ち回りされ、後方へ送られながら処理される。排塵処理室18の終端では、比較的細かい排塵物は、排塵処理胴17終端の排出羽根20によって、第1排塵口21から揺動選別棚40の後部上方へ投げ出される。そして、この排塵物は、第1排出案内板29の第1傾斜面29a上を流下し、既刈地側の圃場面へ落下する。   On the other hand, the dust disposal product taken into the dust disposal chamber 18 from the rear end of the handling chamber 8 through the communication port R is processed by the spiral processing teeth 16 on the outer periphery of the dust disposal cylinder 17 while being transferred rearward. Then, it leaks from the filtration hole of the dust collection screen 27 and is reduced onto the chaff sheave 45. Further, in the dust removal processing chamber 18, the spiral processing teeth 16 and the cutting blade 26 are carried around the dust removal processing chamber 18 and processed while being sent backward. At the end of the dust collection chamber 18, relatively fine dust is thrown out from the first dust outlet 21 to the rear upper part of the swing sorting shelf 40 by the discharge blade 20 at the end of the dust collection cylinder 17. And this dust waste material flows down on the 1st inclined surface 29a of the 1st discharge | release guide plate 29, and falls to the farm scene of the already-harvested land side.

この際、第1排塵口23から排出される排塵物は、2本のガイド杆28上で選別され、主に穀粒が揺動選別棚40上へ漏下して回収される。また、ガイド杆28上から落下しない藁屑等の排塵物は、このガイド杆28上から第2排出案内板24へ引き継がれ、この第2排出案内板24の第3傾斜面24b上または第2傾斜面24a上を流下し、圃場面へ落下する。   At this time, the dust discharged from the first dust outlet 23 is sorted on the two guide rods 28, and the grains are mainly collected by leaking onto the swing sorting shelf 40. In addition, dust and other dust that does not fall from the guide rod 28 is taken over from the guide rod 28 to the second discharge guide plate 24, and the second discharge guide plate 24 has the third inclined surface 24 b or the second discharge surface. 2 Flow down on the inclined surface 24a and fall to the farm scene.

また、塊状になった大きな藁屑等の排塵物は、排塵処理胴17に付き回りして、排塵処理室18の後端右側部に設けた第2排塵口23から脱穀装置4の後方へ排出される。そして、この排塵物は、第2排出案内板24の第2傾斜面24a上および第3傾斜面24b上を流下し、脱穀装置4の既刈地側および直後方の圃場面へ落下する。   In addition, lump dust such as large swarf scraped around the dust removal treatment cylinder 17 threshing device 4 from the second dust discharge port 23 provided on the right side of the rear end of the dust removal treatment chamber 18. It is discharged to the rear. And this dust waste material flows down on the 2nd inclined surface 24a and the 3rd inclined surface 24b of the 2nd discharge | release guide plate 24, and falls in the farming scene of the threshing device 4 in the cutting area side and immediately after.

これによって、揺動選別棚40上の藁屑が減少し、該揺動選別棚40での揺動選別を効率よく行なえ、選別物中の穀粒が藁屑と共に機外に排出される収穫損失を低減でき、脱穀選別作業の精度と能率を向上させることができる。   As a result, the swarf on the swaying sorting shelf 40 is reduced, the swaying sorting on the swaying sorting shelf 40 can be efficiently performed, and the grain loss in the sorted matter is discharged together with the swarf to the outside of the machine. And the accuracy and efficiency of the threshing sorting operation can be improved.

また、排塵処理室18からの排塵物を直後方または既刈地側の圃場面へ落下させるため、未刈地側の穀稈に排塵物がかかりにくく、隣接する穀稈列の刈取作業時に、排出された藁屑の脱穀装置4への再供給を抑えて、脱穀負荷の増加や選別不良の発生を少なくし、コンバインによる刈取脱穀作業の能率を向上させることができる。また、排塵処理室18からの排塵物が直後方から既刈地側の圃場面にわたって拡散された状態で堆積するため、次期の耕耘作業において藁屑の鋤き込み量を均一化でき、移植された苗の生育状態を揃いやすくすることができる。   Further, since the dust discharged from the dust processing chamber 18 is dropped to the farm scene on the right side or on the already-cut ground side, it is difficult for the dust waste to be applied to the cereal side of the uncut area, and the adjacent culm row is harvested. It is possible to suppress the resupply of discharged swarf to the threshing device 4 at the time of operation, to reduce the increase in the threshing load and the occurrence of poor sorting, and to improve the efficiency of the harvesting and threshing work by the combine. In addition, since dust collected from the dust disposal chamber 18 is accumulated in a state of being diffused over the field on the already-cut area from the right side, the amount of sawdust can be made uniform in the next cultivation work, It is possible to facilitate the growth of transplanted seedlings.

しかも、排塵処理室18の後端部から排出される排塵物中に混在した穀粒を揺動選別棚40上へ流下させて回収することができ、収穫損失を更に低減することができる。
また、図4、図6に示すように、揺動選別棚40の後端部には、後下がり傾斜した第3排出案内板61を取り付ける。この第3排出案内板61は、揺動選別棚40の全幅と略同じ左右幅を有し、揺動選別棚40と一体で揺動して、揺動選別棚40の後端部から排出される排塵物を、圃場面へ流下案内するものである。
In addition, the grains mixed in the dust discharged from the rear end of the dust processing chamber 18 can be collected by flowing down onto the swing sorting shelf 40, and the harvest loss can be further reduced. .
Further, as shown in FIGS. 4 and 6, a third discharge guide plate 61 inclined downward is attached to the rear end portion of the swing sorting shelf 40. The third discharge guide plate 61 has substantially the same lateral width as the entire width of the swing sorting shelf 40, swings integrally with the swing sorting shelf 40, and is discharged from the rear end of the swing sorting shelf 40. This guides the discharged dust flowing down to the farm scene.

この第3排出案内板61の傾斜面上には、流下案内板62を起立させて取り付ける。この流下案内板62は、背面視で後部ほど右側に偏倚するように、扱胴7の軸芯方向に対して斜めに配置する。   On the inclined surface of the third discharge guide plate 61, a flow guide plate 62 is installed upright. The flow-down guide plate 62 is disposed obliquely with respect to the axial direction of the handling cylinder 7 so that the rear part is biased to the right side in rear view.

また、図6、図7に示すように、排塵ファン30の排塵風吹き出し口の下側に、排塵風案内板63を後下がり傾斜姿勢にして設け、この排塵風案内板63の傾斜面上に、風向案内板64を、背面視で後部ほど右側に偏倚するように、排塵風の吹き出し方向に対して斜めに配置する。そして、風向案内板64の後側下方に流下案内板62を配置し、この風向案内板64の延長線上に流下案内板62が配置される構成とする。これによって、風向案内板64で案内された排塵風が流下案内板62に当たり、揺動選別棚40の後端から排出される排塵物と、第1排塵口21から第1排出案内板29の第1傾斜面29a上を経て排出される排塵物と、排塵ファン30によって吸い出された排塵物とを、第3排出案内板61上で合流させながら既刈地側の圃場面へ拡散して排出することができる。   Further, as shown in FIGS. 6 and 7, a dust exhaust guide plate 63 is provided on the lower side of the dust exhaust fan outlet of the dust exhaust fan 30 so as to be inclined downwardly. On the inclined surface, the wind direction guide plate 64 is disposed obliquely with respect to the direction of dust exhaust air blowing so as to be biased to the right side in the rear view. A flow guide plate 62 is disposed below the rear side of the wind direction guide plate 64, and the flow guide plate 62 is disposed on an extension line of the wind direction guide plate 64. As a result, the dust exhaust guided by the wind direction guide plate 64 strikes the flow down guide plate 62, the dust discharged from the rear end of the swing sorting shelf 40, and the first discharge guide plate from the first dust outlet 21. The field on the already-cut ground while the dust discharged through the first inclined surface 29 a of 29 and the dust discharged by the dust fan 30 are merged on the third discharge guide plate 61. It can be diffused to the surface and discharged.

また、前記流下案内板62は、第1排出案内板29に対して扱胴7寄りの側(背面視で左側)に配置する。これによって、第1排塵口21から第1排出案内板29の第1傾斜面29a上を経て排出される排塵物を、流下案内板62で既刈地側へ案内し、圃場面へ拡散して排出することができる。   Further, the flow guide plate 62 is disposed on the side closer to the handling cylinder 7 with respect to the first discharge guide plate 29 (left side in the rear view). As a result, the dust discharged from the first dust outlet 21 through the first inclined surface 29a of the first discharge guide plate 29 is guided to the cut area by the flow guide plate 62, and diffused to the field scene. Can be discharged.

また、揺動選別棚40のストローラック46の前端部には、唐箕41からの選別風を排塵ファン30の吸引口側へ向けて案内する風向板65を設ける。この風向板65の延長線上に、排塵ファン30の吸引口の下端が位置する構成とする。これによって、選別風の吹き上げを補助し、チャフシーブ45上での処理物の分散および漏下が促進され、穀粒が藁屑と共に排出される収穫損失を低減できる。また、この場合、1番移送螺旋42と2番移送螺旋43の間に第2唐箕66を設けると、ストローラック46の下側の選別風量を適正に維持でき、このストローラック46上での選別効率を高めることができる。   A wind direction plate 65 is provided at the front end portion of the stroller rack 46 of the swing sorting shelf 40 to guide the sorting wind from the tang 41 toward the suction port side of the dust exhaust fan 30. The lower end of the suction port of the dust exhaust fan 30 is positioned on the extended line of the wind direction plate 65. This assists in blowing up the sorting wind, promotes the dispersion and leakage of the processed material on the chaff sheave 45, and reduces the harvest loss in which the grains are discharged together with the sawdust. Further, in this case, if the second tang 66 is provided between the first transfer spiral 42 and the second transfer spiral 43, the sorting air volume below the Strollac 46 can be properly maintained, and the sorting on the Strollack 46 is performed. Efficiency can be increased.

次に、第1別実施例の脱穀装置について説明する。この第1別実施例では、上述の脱穀装置の構造に対して、選別室の構造だけを変形している。
即ち、図10に示すように、移送棚44の後端部に対してチャフシーブ45の前端部を所定高さだけ低く配置して第1段差部67を形成し、移送棚44の後端部から後方へ向けて棒状の篩い線68を設ける。チャフシーブ45は、高さの異なる前半のシーブ群と後半のシーブ群とに分割し、この前半のシーブ群に対して後半のシーブ群を所定高さだけ低く配置して第2段差部69を形成する。
Next, a threshing apparatus according to a first alternative embodiment will be described. In the first alternative embodiment, only the structure of the sorting chamber is modified with respect to the structure of the above-described threshing apparatus.
That is, as shown in FIG. 10, the first step portion 67 is formed by arranging the front end portion of the chaff sheave 45 lower than the rear end portion of the transfer shelf 44 by a predetermined height. A bar-shaped sieve wire 68 is provided toward the rear. The chaff sheave 45 is divided into a first sheave group and a second sheave group having different heights, and the second sheave group is arranged lower than the first sheave group by a predetermined height to form a second stepped portion 69. To do.

そして、唐箕41の選別風吹き出し口を、上段の吹出口41aと、中段の吹出口41bと、下段の吹出口41cとに3分割する。そして、上段の吹出口41aを、揺動選別棚40の第1段差部67に向かう風洞70の下端に開口した吹き込み口に向けて配置する。この風洞70は揺動選別棚40に一体に設け、下端の吹き込み口側が上端部後側に開口した吹き出し口側よりも大きな断面積を有している。揺動選別棚40が前後上下に揺動しても、上段の吹出口41aと風洞70の下端の吹き込み口とは、連通した状態を維持する。   Then, the sorting air outlet of the Kara 41 is divided into three parts: an upper outlet 41a, an intermediate outlet 41b, and a lower outlet 41c. Then, the upper air outlet 41 a is arranged toward the air inlet opened at the lower end of the wind tunnel 70 toward the first stepped portion 67 of the swing sorting shelf 40. This wind tunnel 70 is provided integrally with the swing sorting shelf 40, and has a lower cross-sectional area than the blow-out port side where the blow-in port side at the lower end opens to the rear side of the upper end portion. Even if the swing sorting shelf 40 swings back and forth and up and down, the upper air outlet 41a and the air inlet at the lower end of the wind tunnel 70 are kept in communication.

また、中段の吹出口41bは、この中段の吹出口41bから吹き出す選別風が、第2段差部69に向かうように、後上がり傾斜姿勢に設ける。下段の吹出口41cは、この下段の吹出口41cから吹き出す選別風が、1番移送螺旋42と2番移送螺旋43との間に配置した後上がり傾斜姿勢の1番流し板71に向かうように、緩い後上がり傾斜姿勢に設ける。   Further, the middle stage outlet 41 b is provided in a rearwardly inclined posture so that the sorting air blown from the middle stage outlet 41 b is directed to the second step portion 69. The lower air outlet 41c is arranged so that the sorting air blown out from the lower air outlet 41c is directed between the first flow plate 71 in the upwardly rising and inclined posture arranged between the first transfer spiral 42 and the second transfer spiral 43. Set up in a sloping posture after loose.

この構成により、第1段差部67と第2段差部69において、処理物がこれらの段差部から落下する際に選別風が夫々作用し、藁屑の選別効率が高まる。これによって、揺動選別棚40上からの穀粒の漏下率が向上し、結果として、穀粒が藁屑と共に排出される収穫損失を低減できる。   With this configuration, in the first stepped portion 67 and the second stepped portion 69, the sorting wind acts when the processed material falls from these stepped portions, and the sorting efficiency of the sawdust is increased. Thereby, the leakage rate of the grain from the rocking sorting shelf 40 is improved, and as a result, the harvest loss in which the grain is discharged together with the sawdust can be reduced.

更に、第2別実施例の脱穀装置について説明する。この第2別実施例では、上述の第1別実施例の脱穀装置の構造に対して、唐箕41の、第2唐箕66の配置と選別風路の構造だけを変形している。   Furthermore, the threshing apparatus of the second alternative embodiment will be described. In the second alternative embodiment, only the arrangement of the second hot pot 66 and the structure of the sorting air passage of the hot pot 41 are modified with respect to the structure of the threshing apparatus of the first different embodiment described above.

即ち、図11に示すように、唐箕41の前側に第2唐箕66を配置し、この第2唐箕66のケーシング77の下部を開口させる。また、このケーシング77の上部を開口して選別風吹出口79を形成する。そして、この選別風吹出口79を、揺動選別棚40側に固定した風洞80の下端の吹き込み口81の内部に挿し込んで連通させる。この挿し込み部分をゴム板などの弾性板で覆い、選別風の漏れを防止する構成とするとよい。この風洞80は、移送棚44の下面に沿って後方へ延長し、その後端の吹き出し口82を第1段差部67に臨ませて配置する。尚、吹き出し口82は、移送棚44の後端部よりも僅かに前側に配置し、穀粒が吹き出し口82の内部へ逆流するのを防止する。   That is, as shown in FIG. 11, the second tang 66 is disposed on the front side of the tang 41 and the lower portion of the casing 77 of the second tang 66 is opened. Further, the upper part of the casing 77 is opened to form a sorting air outlet 79. Then, the sorting air outlet 79 is inserted into and communicated with the inside of the air inlet 81 at the lower end of the wind tunnel 80 fixed to the swinging sorting shelf 40 side. The inserted portion may be covered with an elastic plate such as a rubber plate to prevent leakage of the sorting wind. The wind tunnel 80 extends rearward along the lower surface of the transfer shelf 44, and the rear end outlet 82 faces the first stepped portion 67. The outlet 82 is disposed slightly in front of the rear end of the transfer shelf 44 to prevent the grains from flowing back into the outlet 82.

この構成によっても、第1段差部67と第2段差部69において、処理物がこれらの段差部から落下する際に選別風が作用し、藁屑の選別効率が高まる。これによって、揺動選別棚40上からの穀粒の漏下率が向上し、結果として、穀粒が藁屑と共に排出される収穫損失を低減できる。   Also with this configuration, the sorting wind acts on the first stepped portion 67 and the second stepped portion 69 when the processed material falls from these stepped portions, and the sorting efficiency of the sawdust is increased. Thereby, the leakage rate of the grain from the rocking sorting shelf 40 is improved, and as a result, the harvest loss in which the grain is discharged together with the sawdust can be reduced.

また、唐箕41および第2唐箕66の下側に、後下がり傾斜姿勢の板体83を設ける。この板体83の後端は、唐箕41の下側ケーシング84に連続させる。唐箕41のケーシング41dの下端部と板体83の上面との間には、第1間隙部85を形成する。また、第2唐箕66下部の開口部と板体83の上面との間には、第2間隙部86を形成する。この構成により、揺動選別棚40前部の両側と脱穀装置4の側壁との間や、揺動選別棚40の前側から漏れ落ちる穀粒を、板体83の上面を滑らせ、第2間隙部86および第1間隙部85を通過させて唐箕41の下側ケーシング84へ導き、唐箕41の選別風によって後方の1番移送螺旋42まで移送して回収することができる。   Further, a plate body 83 in a rearwardly inclined posture is provided below the Chinese tang 41 and the second Chinese tang 66. The rear end of the plate 83 is continued to the lower casing 84 of the tang 41. A first gap portion 85 is formed between the lower end portion of the casing 41 d of the red pepper 41 and the upper surface of the plate body 83. A second gap 86 is formed between the opening at the bottom of the second tang 66 and the upper surface of the plate 83. With this configuration, the grain that leaks between both sides of the front part of the swing sorting shelf 40 and the side wall of the threshing device 4 or from the front side of the swing sorting shelf 40 is slid on the upper surface of the plate 83, and the second gap It can be passed through the portion 86 and the first gap portion 85 to be guided to the lower casing 84 of the Kara 41 and transferred to the rearmost transfer spiral 42 by the sorting air of the Kara 41 to be recovered.

コンバインの左側面図Combine left side view コンバインの右側面図Combine right side view コンバインの平面図Top view of the combine 脱穀装置を破断して示す側面図Side view showing broken threshing device 脱穀装置を破断して示す平面図Plan view showing the threshing device in a broken state 脱穀装置を破断して示すコンバインの背面図Rear view of combine showing broken threshing device 排塵口周辺の背面図Rear view around the dust outlet 処理胴および排塵処理室の説明用側面図Side view for explanation of processing cylinder and dust disposal chamber 排塵処理室の説明用側面図Side view for explaining the dust treatment chamber 第1別実施例の脱穀装置の説明用側面図Side view for explanation of threshing apparatus of first different embodiment 第2別実施例の脱穀装置の説明用側面図Side view for explanation of threshing apparatus according to second embodiment

符号の説明Explanation of symbols

1 車体
2 走行装置
3 刈取装置
4 脱穀装置
7 扱胴
8 扱室
11 フィードチェン
17 排塵処理胴
18 排塵処理室
21 第1排塵口
23 第2排塵口
24 第2排出案内板
24a 第2傾斜面
24b 第3傾斜面
28 ガイド杆
29 第1排出案内板
29a 第1傾斜面
30 排塵ファン
40 揺動選別棚
41 唐箕
42 1番移送螺旋
43 2番移送螺旋
G 穀粒貯留装置
R 連通口
DESCRIPTION OF SYMBOLS 1 Car body 2 Traveling device 3 Harvesting device 4 Threshing device 7 Handling cylinder 8 Handling chamber 11 Feed chain 17 Dust removal processing cylinder 18 Dust processing chamber 21 First dust outlet 23 Second dust outlet 24 Second discharge guide plate 24a First 2 inclined surface 24b 3rd inclined surface 28 guide rod 29 1st discharge guide plate 29a 1st inclined surface 30 dust exhaust fan 40 swing selection shelf 41 Karatsu 42 first transfer spiral 43 second transfer spiral G grain storage device R communication mouth

Claims (2)

走行装置(2)を備えた車体(1)の前側に刈取装置(3)を設け、車体(1)の上側に脱穀装置(4)を設け、該脱穀装置(4)の右側に穀粒貯留装置(G)を設け、前記脱穀装置(4)の上部に扱胴(7)を備えた扱室(8)を設け、該扱室(8)の左側にフィードチェン(11)を設け、扱室(8)の右側には排塵処理室(18)を設け、該排塵処理室(18)内に脱穀装置(4)の背面視で反時計方向に回転する排塵処理胴(17)を設け、前記扱室(8)の後端部と排塵処理室(18)の前端部とを連通口(R)で連通させ、前記扱室(8)及び排塵処理室(18)の下方に揺動選別棚(40)を設け、該揺動選別棚(40)の前部下方に唐箕(41)を設け、該唐箕(41)の後側に1番移送螺旋(42)を設け、該1番移送螺旋(42)の後側に2番移送螺旋(43)を設け、揺動選別棚(40)の後部上方に排塵ファン(30)を設け、前記排塵処理室(18)の後端左側部に排塵物を揺動選別棚(40)の後部上方へ排出する第1排塵口(21)を設け、該第1排塵口(21)に、第1排塵口(21)から排出される排塵物を右側後方へ流下案内して圃場面へ落下させる第1傾斜面(29a)を備えた第1排出案内板(29)を設け、前記排塵処理室(18)の後端右側部に排塵物を脱穀装置(4)の後方へ排出する第2排塵口(23)を設け、該第2排塵口(23)に、第2排塵口(23)から排出される排塵物を右側後方へ流下案内して圃場面へ落下させる第2傾斜面(24a)と、第2排塵口(23)から排出される排塵物を脱穀装置(4)の直後方へ流下案内して圃場面へ落下させる第3傾斜面(24b)とを備える第2排出案内板(24)を設けたことを特徴とするコンバイン。   A reaping device (3) is provided on the front side of the vehicle body (1) provided with the traveling device (2), a threshing device (4) is provided on the upper side of the vehicle body (1), and a grain is stored on the right side of the threshing device (4). A device (G) is provided, a handling chamber (8) provided with a handling cylinder (7) is provided at the top of the threshing device (4), and a feed chain (11) is provided on the left side of the handling chamber (8). A dust removal treatment chamber (18) is provided on the right side of the chamber (8), and the dust removal treatment cylinder (17) rotates counterclockwise in the dust removal treatment chamber (18) as viewed from the rear of the threshing device (4). And the rear end of the handling chamber (8) and the front end of the dust disposal chamber (18) are communicated with each other through a communication port (R), and the handling chamber (8) and the dust disposal chamber (18) are connected to each other. A swing sorting shelf (40) is provided below, a Kara (41) is provided below the front of the swing sorting shelf (40), and a No. 1 transfer spiral (42) is provided on the rear side of the Kara (41). , The first transfer screw (42) A second transfer spiral (43) is provided on the rear side, a dust exhaust fan (30) is provided above the rear part of the swing sorting shelf (40), and the left side of the rear end of the dust processing chamber (18). Is provided with a first dust outlet (21) for discharging the dust to the rear upper part of the swing sorting shelf (40), and the first dust outlet (21) is discharged from the first dust outlet (21). Provided with a first discharge guide plate (29) having a first inclined surface (29a) for guiding the discharged waste material to flow backward to the right and dropping it to the farm scene, and the rear end of the dust disposal chamber (18) A second dust discharge port (23) that discharges dust to the rear of the threshing device (4) is provided on the right side, and the second dust discharge port (23) is discharged from the second dust discharge port (23). The second inclined surface (24a) that guides the discharged dust flowing down to the right rear and dropping it onto the farm scene, and the dust discharged from the second dust discharge port (23) immediately after the threshing device (4) Flow Combine, characterized in that the second discharge guide plate and a third inclined surface for dropping into the field plane to guide (24b) and (24) provided. 前記脱穀装置(4)の背面視において前記第1排出案内板(29)と第2排出案内板(24)との間に間隙部(K)を形成し、該間隙部(K)に、前記第1排塵口(23)から排出される排塵物を揺動選別棚(40)上へ流下する排塵物と該揺動選別棚(40)上へ流下せずに第2排出案内板(24)上へ引継がれる排塵物とに分離する複数のガイド杆(28)を配置したことを特徴とする請求項1記載のコンバイン。   In the rear view of the threshing device (4), a gap (K) is formed between the first discharge guide plate (29) and the second discharge guide plate (24), and the gap (K) The dust discharged from the first dust outlet (23) flows down onto the swing sorting shelf (40) and the second discharge guide plate without flowing down onto the swing sorting shelf (40). (24) The combine according to claim 1, characterized in that a plurality of guide rods (28) that separates into dust particles that are handed over are arranged.
JP2008304502A 2008-11-28 2008-11-28 Threshing device Active JP5109947B2 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8824144B2 (en) 2006-03-13 2014-09-02 Kabushiki Kaisha Toyota Jidoshokki Base for power module

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11155348A (en) * 1997-12-01 1999-06-15 Iseki & Co Ltd Threshing apparatus
JP3789229B2 (en) * 1998-05-20 2006-06-21 ヤンマー農機株式会社 Combine
JP4084612B2 (en) * 2002-07-09 2008-04-30 ヤンマー農機株式会社 Combine
JP4780322B2 (en) * 2006-08-31 2011-09-28 井関農機株式会社 Combine
JP2008161173A (en) * 2007-01-05 2008-07-17 Iseki & Co Ltd Thresher

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8824144B2 (en) 2006-03-13 2014-09-02 Kabushiki Kaisha Toyota Jidoshokki Base for power module

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