この発明における脱穀装置の実施の形態を、コンバインに搭載された脱穀装置を例示して説明する。
図１、図２、図３に示すように、コンバインの機体は、機台フレーム１の下側に走行装置２を設け、該機台フレーム１の左側に脱穀装置３を搭載し、機台フレーム１上における該脱穀装置３の側部に穀粒貯留装置４を搭載し、機台フレーム１上における該穀粒貯留装置４の前側にエンジン５を搭載すると共に該エンジン５を被覆するエンジンカバー６を設け、該エンジンカバー６の前側に操縦部７を設け、該操縦部７及び前記脱穀装置３の前側に刈取装置８を設けて構成する。
The embodiment of the threshing apparatus in this invention is demonstrated exemplifying the threshing apparatus mounted in the combine.
As shown in FIGS. 1, 2, and 3, the body of the combine is provided with a traveling device 2 on the lower side of the machine frame 1, and a threshing device 3 is mounted on the left side of the machine frame 1. The grain cover 4 is mounted on the side of the threshing device 3 on 1, the engine 5 is mounted on the front side of the grain storage 4 on the machine frame 1, and the engine cover 6 covers the engine 5. And a control unit 7 is provided on the front side of the engine cover 6, and a cutting device 8 is provided on the front side of the control unit 7 and the threshing device 3.
前記走行装置２は、エンジン５の駆動力を静油圧式無段変速装置を介して変速するミッションと、該ミッションから駆動される左右の駆動スプロケット９，９と、機台フレーム１側に連結された左右の転輪フレーム１０，１０と、該転輪フレーム１０，１０に軸支された転輪１１，１１群と、該駆動スプロケット９，９及び転輪１１，１１群にわたって巻き掛けたクローラ１２，１２とによって構成する。後述する操縦部７に設ける操向操作レバー１３の左右傾動操作によって、この傾動側の駆動スプロケット９が停止ないし差動機構を介して減速駆動されることによって、機体を左右に操向する構成である。
The traveling device 2 is connected to the mission for shifting the driving force of the engine 5 via a hydrostatic continuously variable transmission, the left and right drive sprockets 9 and 9 driven from the mission, and the machine frame 1 side. The left and right wheel frames 10, 10; the wheels 11, 11 supported on the wheel frames 10, 10; the crawler 12 wound around the drive sprocket 9, 9 and the wheels 11, 11; , 12. In this configuration, the tilting-side drive sprocket 9 is stopped or driven at a reduced speed via a differential mechanism by a left-right tilting operation of a steering operation lever 13 provided in the control unit 7 described later, thereby steering the aircraft from side to side. is there.
前記刈取装置８は、前低後高の傾斜姿勢とした主フレーム１４の後上端部を機台フレーム１側から立設した刈取懸架台（図示省略）上に左右回動軸によって軸支し、該主フレーム１４の下部後側を油圧シリンダ（図示省略）によって押し上げ可能に構成する。前記油圧シリンダは、前記操向操作レバー１３の前後傾動操作に連繋して伸縮する構成である。そして、前記主フレーム１４の前端部に左右方向姿勢の下部ギヤケース１５の左右中間部を固定し、該下部ギヤケース１５の前側に分草フレーム１６を固定する一方、該下部ギヤケース１５の左側端部から側部縦伝動軸（図示省略）を立ち上げる。前記分草フレーム１６は前後方向姿勢の７本の分草杆を有し、各分草杆の先端部に分草体１７を取り付ける。また、前記側部縦伝動軸の上端部に左右方向姿勢の上部横伝動軸の左端部を連動連結し、該上部横伝動軸から吊下げ状に設ける引起し伝動軸（図示省略）によって６基の引起装置１８を駆動するように構成する。また、前記分草フレーム１６の基部下側には刈刃１９を設け、該刈刃１９の上側から後方にわたって、下段の株元側搬送装置（図示省略）及び上段の穂先側搬送装置２０を設ける。前記分草体１７によって分草し、引起装置１８で引起し、刈刃１９で刈り取った穀稈を、該株元側搬送装置および穂先側搬送装置２０によって後方へ搬送して、脱穀装置３へ供給する構成である。
The mowing device 8 is pivotally supported by a left and right pivot on a mowing suspension base (not shown) having a rear upper end portion of the main frame 14 in a leaning posture of a front, a rear, and a height, which is erected from the machine frame 1 side. The lower rear side of the main frame 14 is configured to be pushed up by a hydraulic cylinder (not shown). The hydraulic cylinder is configured to expand and contract in conjunction with a forward / backward tilt operation of the steering operation lever 13. The left and right intermediate portions of the lower gear case 15 in the left-right direction are fixed to the front end portion of the main frame 14, and the weeding frame 16 is fixed to the front side of the lower gear case 15, while from the left end portion of the lower gear case 15 Start up the side vertical transmission shaft (not shown). The weed frame 16 has seven weed pods in the front-rear direction, and a weed body 17 is attached to the tip of each weed pod. Further, the upper end of the side vertical transmission shaft is linked to the left end of the upper horizontal transmission shaft in the left-right direction posture, and six bases are provided by a pulling transmission shaft (not shown) provided suspended from the upper horizontal transmission shaft. The pulling device 18 is configured to be driven. Further, a cutting blade 19 is provided below the base portion of the weeding frame 16, and a lower stocker side transport device (not shown) and an upper tip end side transport device 20 are provided from the upper side to the rear side of the cutting blade 19. . The cereals that have been weeded by the weeding body 17, raised by the pulling device 18, and cut by the cutting blade 19 are transported backward by the stock source side transport device and the tip side transport device 20 and supplied to the threshing device 3. It is the structure to do.
前記穀粒貯留装置４は、脱穀装置３によって脱穀された穀粒を一時的に貯留するもので、内側上部に穀粒投入口を形成した箱型のグレンタンク２１に対して、穀粒排出装置２２を備えて構成する。該穀粒排出装置２２は、前記グレンタンク２１の底部の谷部に前後方向に軸架して設けた底部搬送螺旋（図示省略）と、該底部搬送螺旋のグレンタンク外への突出端部から穀粒を引き継いで揚穀する揚穀螺旋を内装した縦軸回動自在の揚穀筒２３と、該揚穀筒２３の上端部に上下回動自在に連通する伸縮自在の排出筒２４とから構成する。２５は、前記排出筒２４の伸縮用駆動装置である。また、該排出筒２４を格納位置にて受け止め支持する受け台２６を脱穀装置３の上面に固定すると共に、該受け台２６を、前記グレンタンク２１の穀粒投入口へ接続して設ける一番揚穀筒２７に連結する。
The grain storage device 4 temporarily stores the grain threshed by the threshing device 3, and is a grain discharging device for the box-shaped glen tank 21 having a grain inlet at the inner upper part. 22 is configured. The grain discharging device 22 includes a bottom conveying spiral (not shown) provided in the trough at the bottom of the Glen tank 21 in the front-rear direction, and a protruding end portion of the bottom conveying spiral outside the Glen tank. From a vertical slewing barrel 23 having a cerealing spiral for taking over the grain and cerealing, and a telescopic discharge barrel 24 communicating with the upper end of the spilling barrel 23 so as to be vertically rotatable Constitute. Reference numeral 25 denotes an expansion / contraction drive device for the discharge cylinder 24. In addition, the cradle 26 that receives and supports the discharge cylinder 24 at the retracted position is fixed to the upper surface of the threshing device 3, and the cradle 26 is connected to the grain inlet of the grain tank 21. Connected to the whipping cylinder 27.
前記操縦部７は、前記エンジンカバー６の上面側に座席２８を取り付け、該座席２８の前方に立設したフロント操作ポスト２９の右側一側に前記操向操作レバー１３を立設すると共に該操向操作レバー１３の後側に手首載せ台３０を設け、前記座席２８の左側方に、主変速レバー、副変速レバー、刈取クラッチレバー、脱穀クラッチレバー、穀粒排出装置２２の穀粒排出クラッチレバー、旋回操作レバー及び伸縮操作スイッチ等を設けて構成する。
The steering unit 7 has a seat 28 attached to the upper surface side of the engine cover 6, and the steering operation lever 13 is erected on the right side of a front operation post 29 erected in front of the seat 28 and the operation unit 7 is operated. A wrist rest 30 is provided on the rear side of the direction control lever 13, and on the left side of the seat 28, a main transmission lever, an auxiliary transmission lever, a harvesting clutch lever, a threshing clutch lever, and a grain discharging clutch lever of the grain discharging device 22 A swiveling operation lever and an expansion / contraction operation switch are provided.
しかして、図４、図５、図６に示すように、前記脱穀装置３は、上部に設ける扱室３１、排塵処理室３２、二番処理室３３、排稈室３４と、下部に設ける選別室３５とから構成する。
Thus, as shown in FIGS. 4, 5, and 6, the threshing device 3 is provided in a lower portion, with a handling chamber 31, a dust disposal chamber 32, a second treatment chamber 33, and a waste chamber 34 provided in the upper portion. It comprises a sorting chamber 35.
前記扱室３１内には、線状の扱歯３６を植設した扱胴３７を軸架すると共に、該扱胴３７の下側外周に沿って扱網（濾過部材）３８を張設する。
また、前記排塵処理室３２は、その前端部を前記扱室３１の後端部側方に開口した連通口３９に連通させ、螺旋体を外周に巻き回した排塵処理胴４０を軸架すると共に、該排塵処理胴４０の下側から側部にわたる外周部に沿って網状または格子状の濾過部材４１を張設する。該濾過部材４１の後端部は、後述する揺動選別棚の後端部上側において開口する。
A handle cylinder 37 in which linear handle teeth 36 are implanted is pivoted in the handle chamber 31, and a handle net (filter member) 38 is stretched along the lower outer periphery of the handle cylinder 37.
Further, the dust disposal chamber 32 has a front end communicated with a communication port 39 opened to the side of the rear end of the handling chamber 31, and a dust disposal cylinder 40 in which a spiral body is wound around the outer periphery. At the same time, a net-like or lattice-like filter member 41 is stretched along the outer peripheral portion extending from the lower side to the side portion of the dust removal treatment cylinder 40. The rear end portion of the filter member 41 is opened above the rear end portion of the swing sorting shelf described later.
また、前記二番処理室３３内には、多数の処理歯４２を有する二番還元処理胴４３を前記排塵処理胴４０と同軸にて回転するように軸架すると共に、該二番還元処理胴４３の下側外周部に沿って盲板を設置する。更に、前記二番処理室３３における後端部上側に二番揚穀筒４５の二番還元口を連通させて設ける。前記処理歯４２は、所定の送り角を有しており、二番還元された二番還元物は、該二番還元処理胴４３の回転によって前方へ移送されながら処理され、該二番還元処理胴４３の前端部に設けた放出用の羽根によって、前記盲板の前端部に開口した還元口から揺動選別棚の前部へ放擲落下する構成である。
In the second treatment chamber 33, a second reduction treatment cylinder 43 having a large number of treatment teeth 42 is pivoted so as to rotate coaxially with the dust removal treatment cylinder 40, and the second reduction treatment is performed. A blind plate is installed along the lower outer periphery of the trunk 43. Further, the second reduction port of the second lifting cylinder 45 is provided in communication with the upper side of the rear end portion in the second processing chamber 33. The processing teeth 42 have a predetermined feed angle, and the second reduced product that has been second reduced is processed while being transferred forward by the rotation of the second reduction processing cylinder 43, and the second reduction processing. The discharge blade provided at the front end portion of the barrel 43 is configured to radiate and drop from the reducing port opened at the front end portion of the blind plate to the front portion of the swing sorting shelf.
しかして、前記扱胴３７と排塵処理胴４０との間の下方の三角形状の仮想空間部に、該排塵処理胴４０の濾過部材４１から漏下する被処理物を受け入れて後方へ移送する螺旋式移送装置４６を設ける。
Thus, the object to be processed that leaks from the filter member 41 of the dust removal treatment cylinder 40 is received and transferred to the lower triangular space between the handling cylinder 37 and the dust removal treatment cylinder 40. A helical transfer device 46 is provided.
該螺旋式移送装置４６は、前記排塵処理胴４０とこれに同軸で続く二番還元処理胴４３との長さに相当する長尺の連続螺旋に形成し、左右横側および下側に沿って受樋（受け部材）４６ｂを設ける。該受樋４６ｂのうち、右側の壁部は排塵処理胴４０の濾過部材４１側に向かって上がり傾斜させ、該受樋４６ｂの左側の壁部は扱胴３７の扱網３８側に向かって上がり傾斜させて設ける。尚、前記受樋４６ｂは、盲板または目抜き板のいずれに形成してもよい。目抜き板に形成すれば、被処理物を前方へ移送しながら処理して揺動選別棚上へ漏下させることができる。尚、前記扱胴３７下側外周の扱網（濾過部材）３８と排塵処理胴４０外周部の濾過部材４１とを結ぶ接線Ｓよりも、前記螺旋式移送装置４６の上部が上側に入り込むように設定するものである。また、前記螺旋式移送装置４６及び受樋４６ｂの後端部（移送始端部）は前記排塵処理室３２の後端部近傍に設定すると共に、該螺旋式移送装置４６及び受樋４６ｂの前端部は前記二番還元処理胴４３及び該二番還元処理胴４３の下側外周部の盲板の前端部近傍位置に設定する。そして、前記螺旋式移送装置４６の受樋４６ｂの前端部に開口部を設けて、螺旋式移送装置４６によって後方から前方へ移送されてきた被処理物が、該螺旋式移送装置４６の前端部に設けた放出用の羽根によって、該開口部から揺動選別棚の前端部に放擲落下するように構成する。
The helical transfer device 46 is formed in a long continuous spiral corresponding to the length of the dust removal treatment cylinder 40 and the second reduction treatment cylinder 43 that is coaxial with the dust removal treatment cylinder 40, and extends along the left and right lateral sides and the lower side. And a receiving member (receiving member) 46b. The right wall portion of the receiving rod 46 b is inclined upward toward the filtering member 41 side of the dust removal treatment cylinder 40, and the left wall portion of the receiving rod 46 b is directed toward the handling net 38 side of the handling drum 37. Provide a slope. The receiving rod 46b may be formed on either a blind plate or a hollow plate. If formed on the mesh plate, the object to be processed can be processed while being transferred forward and leaked onto the swing sorting shelf. It should be noted that the upper part of the spiral transfer device 46 enters above the tangent line S connecting the handling net (filter member) 38 on the lower outer periphery of the handling cylinder 37 and the filtration member 41 on the outer periphery of the dust removal treatment cylinder 40. Is set to Further, the rear end portion (transfer start end portion) of the spiral transfer device 46 and the receiving rod 46b is set near the rear end portion of the dust removal processing chamber 32, and the front end of the spiral transfer device 46 and the receiving rod 46b. The part is set at a position near the front end of the blind plate on the lower outer periphery of the second reduction treatment cylinder 43 and the second reduction treatment cylinder 43. An opening is provided in the front end portion of the receiving rod 46b of the spiral transfer device 46, and the workpiece transferred from the rear to the front by the spiral transfer device 46 is transferred to the front end portion of the spiral transfer device 46. The discharge blade provided on the slab is configured so as to radiate and fall from the opening to the front end of the swing sorting shelf.
尚、前記扱室３１の外側面に扱口４７を形成し、該扱口４７に沿ってフィードチェン４８を張設する。また、前記排稈室３４には、前記フィードチェン４８の後端部に連続する排藁搬送装置４９を設ける。該排藁搬送装置４９は、株元側搬送チェンとラグ式の穂先側搬送装置とから成る。また、該排藁搬送装置４９の下側には横断流ファン形態の排塵ファン５０を設ける。５１は、前記排藁搬送装置４９によって排出される排藁を細断して圃場に放出する排藁カッターである。
A handling port 47 is formed on the outer surface of the handling chamber 31, and a feed chain 48 is stretched along the handling port 47. The evacuation chamber 34 is provided with an evacuation transport device 49 continuous with the rear end of the feed chain 48. The waste transporting device 49 includes a stock-side transporting chain and a lag type tip-side transporting device. Further, a dust exhaust fan 50 in the form of a cross flow fan is provided below the waste transporting device 49. 51 is a waste cutter that shreds the waste discharged by the waste transporting device 49 and releases it to the field.
また、前記選別室３５には、移送棚とシーブ１１０と排藁ラック１１１を有する揺動選別棚５２を駆動揺動自在に設け、該揺動選別棚５２の下側には、前側から、唐箕５３と、一番螺旋５４と、二番螺旋５５とを配置する。１１２は第二唐箕である。前記一番螺旋５４の機体内側端部に前記一番揚穀筒２７の下端部を連通させ、前記二番螺旋５５の機体内側端部に前記二番揚穀筒４５の下端部を連通させた構成である。
Further, the sorting chamber 35 is provided with a swing sorting shelf 52 having a transfer shelf, a sheave 110 and a waste rack 111 so as to be able to be driven and swung. 53, the first spiral 54, and the second spiral 55 are arranged. 112 is a second Chinese potato. The lower end part of the first cereal cylinder 27 is communicated with the inner end part of the machine body of the first spiral 54, and the lower end part of the second cereal cylinder 45 is communicated with the inner end part of the machine body of the second spiral 55. It is a configuration.
次に、上記脱穀装置３の伝動について説明する。
まず、エンジン５の出力軸５６から静油圧式無段変速装置５７の入力軸５８へベルト伝動機構を設ける。該入力軸５８の外端部には冷却ファン５９を取り付ける。該入力軸５８によって油圧ポンプ６０を駆動し、該油圧ポンプ６０からの送油によって油圧モータ６１が駆動される構成であり、前記油圧ポンプ６０の斜盤角度を前記操縦部７に設ける主変速レバーの傾動操作によって変更することにより、該油圧ポンプ６０からの吐き出し油量が変更されて、油圧モータ６１の回転出力が変速される構成である。そして、この油圧モータ６１の出力軸６２から減速ギヤ機構６３を介してミッションケース６４の入力軸６５へ入力されるのであるが、この減速ギヤ機構６３の中間軸をフィードチェン出力軸６６とし、更にミッションケース６４の入力軸６５からワンウェイクラッチＫを介して刈取出力プーリ６７を駆動するように構成する。また、前記入力軸６５から副変速機構６８を介してセンターギヤ６９に入力し、該センターギヤ６９に対して係合離脱操作自在な左右のサイドクラッチギヤ７０，７０を介して左右の車軸７１，７１及び駆動スプロケット９，９が駆動される構成である。
Next, the transmission of the threshing device 3 will be described.
First, a belt transmission mechanism is provided from the output shaft 56 of the engine 5 to the input shaft 58 of the hydrostatic continuously variable transmission 57. A cooling fan 59 is attached to the outer end portion of the input shaft 58. A main speed change lever that is configured to drive a hydraulic pump 60 by the input shaft 58 and to drive a hydraulic motor 61 by oil feeding from the hydraulic pump 60, and to provide a swash plate angle of the hydraulic pump 60 in the control unit 7. By changing the tilting operation, the amount of oil discharged from the hydraulic pump 60 is changed, and the rotational output of the hydraulic motor 61 is shifted. The output shaft 62 of the hydraulic motor 61 is input to the input shaft 65 of the transmission case 64 via the reduction gear mechanism 63. The intermediate shaft of the reduction gear mechanism 63 is used as the feed chain output shaft 66, and further The cutting output pulley 67 is driven from the input shaft 65 of the transmission case 64 via the one-way clutch K. The left and right axles 71, 70 are input to the center gear 69 from the input shaft 65 via the auxiliary transmission mechanism 68, and left and right side clutch gears 70, 70 can be engaged and disengaged with respect to the center gear 69. 71 and the drive sprockets 9 and 9 are driven.
前記フィードチェン出力軸６６からベルトテンションクラッチ機構７２とワンウェイクラッチＫ２とカウンタ軸７３とベルト伝動機構とを介してギヤケース７４へ入力し、該ギヤケース７４から駆動されるスプロケット７５によって前記フィードチェン４８を駆動するように構成する。
The feed chain output shaft 66 is inputted to the gear case 74 through the belt tension clutch mechanism 72, the one-way clutch K2, the counter shaft 73, and the belt transmission mechanism, and the feed chain 48 is driven by the sprocket 75 driven from the gear case 74. To be configured.
また、前記エンジン５の出力軸５６から脱穀装置３の前壁に取り付けた処理胴伝動ケース７６の入力軸７７へベルト伝動機構を設け、該処理胴伝動ケース７６によって前記二番還元処理胴４３及び排塵処理胴４０を同軸で駆動するように構成すると共に、該処理胴伝動ケース７６によって前記螺旋式移送装置４６を駆動するように構成する。尚、前記螺旋式移送装置４６は排塵処理胴４０の後端部から連動して駆動するように構成してもよい。また、前記処理胴伝動ケース７６の出力軸７８から扱胴伝動ケース７９の入力軸８０へベルト伝動機構を設け、該扱胴伝動ケース７９を介して扱胴３７を駆動するように構成する。更に、前記扱胴３７の軸の後端部からベルト伝動機構を介して前記排藁搬送装置４９を駆動するように構成する。
Further, a belt transmission mechanism is provided from the output shaft 56 of the engine 5 to the input shaft 77 of the processing cylinder transmission case 76 attached to the front wall of the threshing device 3, and the second reduction processing cylinder 43 and the processing cylinder transmission case 76 are provided. The dust removal processing cylinder 40 is configured to be driven coaxially, and the spiral transfer device 46 is configured to be driven by the processing cylinder transmission case 76. The spiral transfer device 46 may be configured to be driven in conjunction with the rear end portion of the dust removal processing cylinder 40. Further, a belt transmission mechanism is provided from the output shaft 78 of the processing cylinder transmission case 76 to the input shaft 80 of the cylinder transmission case 79, and the cylinder 37 is driven via the cylinder transmission case 79. Further, the waste conveying device 49 is driven from a rear end portion of the shaft of the handling cylinder 37 via a belt transmission mechanism.
以上の構成により、走行装置２を前進駆動しながら、圃場に植立する穀稈を分草体１７によって分草し、引起装置１８によって引起し、刈刃１９によって刈り取り、株元側搬送装置および穂先側搬送装置２０によって後方へ搬送してフィードチェン４８へ引き継ぐ。そして、このフィードチェン４８によって穀稈の穂先側が扱口４７から扱室３１内に挿入された状態で後方へ搬送され、この際に穀稈の穂先部が扱胴３７の扱歯３６の作用を受けて脱粒される。一部の精粒は扱網３８から漏下して揺動選別棚５２の前部の移送棚に漏下するが、この扱網３８から漏下しなかった被処理物は、扱室３１後部の連通口３９から排塵処理胴４０の螺旋の作用によって排塵処理室３２の前端部に取り込まれ、該排塵処理室３２内の排塵処理胴４０によって再処理される。そして、排塵処理胴４０側の濾過部材４１から漏下する被処理物は螺旋式移送装置４６の受樋４６ｂに取り込まれて該螺旋式移送装置４６の螺旋の作用によって前方へ移送され、揺動選別棚５２前部の移送棚上へ還元して選別される。この際、前記螺旋式移送装置４６の上部を、前記扱胴３７側の濾過部材３８と排塵処理胴４０側の濾過部材４１とを結ぶ接線Ｓよりも上側に入り込ませて配置することによって、排塵処理胴４０及び該排塵処理胴４０側の濾過部材４１と螺旋式移送装置４６との上下方向の設置範囲が小さく抑えられる。また、揺動選別棚５２を経て回収されたに二番物は、二番還元処理胴４３によって再処理される。
With the above configuration, while the traveling device 2 is driven forward, the cereal grains to be planted in the field are weeded by the weeding body 17, raised by the pulling device 18, and cut by the cutting blade 19. The sheet is conveyed rearward by the side conveying device 20 and taken over by the feed chain 48. Then, the feed chain 48 conveys the grain tip side of the grain basket into the handling chamber 31 from the handling port 47 to the rear, and the tip part of the grain basket performs the action of the teeth 36 of the handling cylinder 37 at this time. Received and shedding. Some of the fine particles leak from the handling net 38 and to the transfer shelf in front of the swing sorting shelf 52, but the object to be treated that has not leaked from the handling net 38 is the rear part of the handling chamber 31. Is taken into the front end portion of the dust treatment chamber 32 by the spiral action of the dust treatment cylinder 40 and is reprocessed by the dust treatment cylinder 40 in the dust treatment chamber 32. Then, the object to be treated that leaks from the filter member 41 on the dust removal treatment cylinder 40 side is taken into the receiving rod 46b of the spiral transfer device 46, transferred forward by the spiral action of the spiral transfer device 46, and shaken. It is reduced and sorted onto the transfer shelf in front of the moving sorting shelf 52. At this time, by arranging the upper part of the spiral transfer device 46 so as to enter above the tangent S connecting the filtration member 38 on the handling cylinder 37 side and the filtration member 41 on the dust removal treatment cylinder 40 side, The vertical installation range of the dust removal cylinder 40 and the filtering member 41 on the dust collection cylinder 40 side and the spiral transfer device 46 can be kept small. In addition, the second item collected through the swing sorting shelf 52 is reprocessed by the second reduction processing cylinder 43.
これにより、排塵処理胴４０側から漏下する被処理物を螺旋式移送装置４６によって前方へ移送して揺動選別棚５２の前部へ還元して選別できるものでありながら、排塵処理胴４０側の濾過部材４１から漏下する被処理物を前方へ移送する螺旋式移送装置４６の上部を、前記扱胴３７側の濾過部材３８と排塵処理胴４０側の濾過部材４１とを結ぶ接線よりも上側に入り込ませて配置することによって、排塵処理胴４０及び該排塵処理胴４０側の濾過部材４１と螺旋式移送装置４６との上下方向の設置範囲を小さく抑えることができる。これによって、脱穀装置全体の高さが高くなって重心位置が高くなり、この脱穀装置を搭載するコンバインの姿勢が不安定となったり、螺旋式移送装置４６とこの下側の揺動選別棚５２との間隔が狭くなって揺動選別棚５２上の藁屑の流れを阻害し、詰まりを起こすような不具合を少なくして、脱穀作業を能率良く行なうことができる。そして、螺旋式移送装置４６の外周部に設ける受け部材４６ｂの前端部を揺動選別棚５２の前部上方において開口させることにより、排塵処理胴４０側の濾過部材４１から漏下した被処理物を二番還元処理胴４３側からの漏下物と共に揺動選別棚５２の前部へ還元して選別し、穀粒の回収効率を高めることができる。
Accordingly, the object to be processed leaking from the dust removal cylinder 40 side can be transferred forward by the spiral transfer device 46 and returned to the front portion of the swing sorting shelf 52 to be sorted. The upper part of the spiral transfer device 46 that forwards the workpiece leaking from the filtration member 41 on the cylinder 40 side is connected to the filtration member 38 on the handling cylinder 37 side and the filtration member 41 on the dust removal treatment cylinder 40 side. By disposing them so as to enter the upper side of the connecting tangent line, the vertical installation range of the dust removal treatment cylinder 40 and the filtering member 41 on the dust removal treatment cylinder 40 side and the spiral transfer device 46 can be kept small. . As a result, the height of the entire threshing device is increased, the position of the center of gravity is increased, the posture of the combine on which the threshing device is mounted becomes unstable, the spiral transfer device 46 and the lower swing sorting shelf 52. , The flow of swarf on the swing sorting shelf 52 is hindered, and problems such as clogging are reduced, and the threshing operation can be performed efficiently. Then, by opening the front end portion of the receiving member 46 b provided on the outer peripheral portion of the spiral transfer device 46 above the front portion of the swing sorting shelf 52, the object to be processed leaked from the filtering member 41 on the dust removal treatment cylinder 40 side. The product can be reduced and sorted together with the leakage from the second reduction processing cylinder 43 side to the front part of the swing sorting shelf 52, thereby improving the grain recovery efficiency.
尚、前記排塵処理胴４０の軸芯を、脱穀装置の機体奥側の側壁９１と略同じ位置とし、該排塵処理胴４０の機体奥側の半周部を、脱穀装置の機体奥側の側壁９１から外側（機体内側）へ突出させ、該排塵処理胴４０の突出部を包囲するように排塵処理室３２の壁Ｗを膨出させて形成してもよい。これにより、排塵処理胴４０の軸芯より内側の半周部が揺動選別棚５２の上側に臨む。この結果、上記穀粒の回収効率の向上に加え、脱穀装置の全体幅をコンパクトに構成することができる。
In addition, the axial center of the said dust removal processing cylinder 40 is made into the substantially same position as the side wall 91 of the machine body back side of a threshing apparatus, and the half circumference part of the machine body back side of this dust removal process cylinder 40 is made into the machine body back side of a threshing apparatus. The wall W of the dust removal processing chamber 32 may be formed to protrude from the side wall 91 to the outside (inside the machine body) and to surround the protruding portion of the dust removal treatment cylinder 40. As a result, the semicircular portion inside the dust core 40 faces the upper side of the swing sorting shelf 52. As a result, in addition to improving the grain recovery efficiency, the entire width of the threshing apparatus can be made compact.
また、上記排塵処理胴４０と同軸に設ける二番還元処理胴４３の機体奥側の半周部を、脱穀装置の機体奥側の側壁９１から外側（機体内側）へ突出させ、該二番還元処理胴４３の突出部を包囲するように二番処理室３３の壁を膨出させて形成してもよい。これにより、二番処理室３３の軸芯より内側の半周部が揺動選別棚５２の上側に臨む。この結果、上記穀粒の回収効率の向上に加え、脱穀装置の全体幅をコンパクトに構成することができる。
Moreover, the half circumference part of the machine body back side of the 2nd reduction | restoration process cylinder 43 provided coaxially with the said dust removal process cylinder 40 is protruded from the side wall 91 of the machine body back | inner side of a threshing apparatus outside (machine body inside), and this 2nd reduction | restoration is carried out. The wall of the second processing chamber 33 may be bulged so as to surround the protruding portion of the processing cylinder 43. As a result, the inner periphery of the second processing chamber 33 on the inner side faces the upper side of the swing sorting shelf 52. As a result, in addition to improving the grain recovery efficiency, the entire width of the threshing apparatus can be made compact.
また、前記螺旋式移送装置４６の受樋４６ｂは、扱網（濾過部材）３８の下側にも臨んでいるため、該扱網３８を通過した濾過物の一部も、排塵処理室３２からの漏下物と共にこの受樋４６ｂ内に取り込まれて螺旋式移送装置４６によって前方へ移送され、揺動選別棚５２前部に還元されて再選別される。尚、受樋４６ｂの上側に臨む扱網３８の目合いを、これ以外の部分の目合いよりも大きく設定してもよい。また、これとは逆に、受樋４６ｂの上側に臨む扱網３８の目合いを、これ以外の部分の目合いよりも小さく設定してもよい。これにより、上記穀粒回収効率の向上に加え、枝梗が除去でき、脱穀精度及び脱穀能力を向上させることができる。
Further, since the receiving rod 46b of the spiral transfer device 46 also faces the lower side of the handling net (filtering member) 38, part of the filtered material that has passed through the handling net 38 is also in the dust disposal chamber 32. It is taken into the receptacle 46b together with the leakage from the container, transferred forward by the spiral transfer device 46, returned to the front part of the swing sorting shelf 52 and re-sorted. In addition, you may set the mesh of the handling net | network 38 facing the upper side of the receiving rod 46b larger than the mesh of a part other than this. On the contrary, the mesh of the handling net 38 facing the upper side of the receiving rod 46b may be set smaller than the mesh of other portions. Thereby, in addition to the improvement of the grain recovery efficiency, branch stems can be removed, and the threshing accuracy and threshing ability can be improved.
また、図７、図８に示すように、前記二番還元処理胴４３の前端部位置及び盲板の還元口Ｔ位置よりも、螺旋式移送装置４６の前端部位置及び受樋４６ｂの開口部Ｃ位置を後方に設定し、該前後に位置のずれた還元口Ｔ及び開口部Ｃから被処理物を揺動選別棚５２の移送棚の中央側（左側）へ向けて放擲するように構成してもよい。これにより、二番処理室３３から放擲される被処理物と螺旋式移送装置４６から放擲される被処理物とが集中せずに移送棚上に円滑に拡散されるため、選別精度および選別能力を向上させることができる。
Further, as shown in FIGS. 7 and 8, the front end position of the spiral transfer device 46 and the opening of the receiving rod 46 b are located more than the front end position of the second reduction processing cylinder 43 and the reduction port T position of the blind plate. The C position is set to the rear, and the object to be processed is released from the reducing port T and the opening C, which are displaced in the front and rear directions, toward the center side (left side) of the transfer shelf of the swing sorting shelf 52. May be. As a result, the processing object released from the second processing chamber 33 and the processing object released from the spiral transfer device 46 are smoothly diffused on the transfer shelf without being concentrated. Sorting ability can be improved.
また、前記扱室３１の後側壁から排藁搬送装置４９の穂先側にわたって、該排藁搬送装置４９によって搬送中の排藁から落下する刺さり粒を落下案内して回収する回収板９２を設けてもよい。該回収板９２は、右端縁を前記受樋４６ｂの側壁に連続して設置し、自由端となる左端縁を上がり傾斜姿勢にして設ける。また、脱穀装置の背面視において、扱胴３７は反時計回りに回転し、排塵処理胴４０及び二番還元処理胴４３は時計周りに回転するように構成する。これにより、排藁搬送装置４９によって搬送中の排藁から刺さり粒が落下しても、これを直接揺動選別棚５２上に落下させることなく、螺旋式移送装置４６に取り込んで前方へ移送して揺動選別棚５２の前部に供給することができ、選別能力の向上および脱穀損失の低減を図ることができる。
Further, a recovery plate 92 is provided from the rear side wall of the handling chamber 31 to the tip side of the waste transporting device 49 to drop and guide the stab particles that fall from the waste being transported by the waste transporting device 49. Also good. The collection plate 92 is provided with a right end edge continuously provided on the side wall of the receiving rod 46b, and a left end edge which is a free end is provided in an upwardly inclined posture. Further, in the rear view of the threshing apparatus, the handling cylinder 37 rotates counterclockwise, and the dust removal processing cylinder 40 and the second reduction processing cylinder 43 rotate clockwise. As a result, even if stabbed grains fall from the waste being transported by the waste transporting device 49, they are taken directly into the spiral transfer device 46 and transported forward without dropping them onto the swing sorting shelf 52. Thus, it can be supplied to the front part of the swing sorting shelf 52, so that the sorting ability can be improved and the threshing loss can be reduced.
また、平面視において、前記回収板９２の縁部形状を、排藁搬送装置４９と略平行に設定してもよい。これにより、排藁搬送装置４９によって搬送中の排藁から落下する刺さり粒を、螺旋式移送装置４６へ効率良く回収することができる。
Further, the edge shape of the recovery plate 92 may be set substantially parallel to the waste transporting device 49 in plan view. Thereby, the stab particles that fall from the waste being transported by the waste transporting device 49 can be efficiently recovered to the spiral transfer device 46.
次に、図９、図１０、図１１に示すように、前記螺旋式移送装置４６に代えて、ベルト式移送装置（無端帯式移送装置）９３を設けてもよい。
即ち、前記扱胴３７と排塵処理胴４０との間の下方位置において、排塵処理室３２後端部の排塵口よりも前側の位置に大径の後部ローラ９４を横軸によって軸支すると共に、前記扱室３１の後端部の下側の位置に小径の前部ローラ９５を横軸によって軸支し、これら後部ローラ９４と前部ローラ９５とにわたって無端状の広幅の平ベルト９６を巻き掛けて設ける。
Next, as shown in FIGS. 9, 10, and 11, a belt type transfer device (endless belt type transfer device) 93 may be provided in place of the helical transfer device 46.
That is, a large-diameter rear roller 94 is pivotally supported by a horizontal axis at a position in front of the dust discharge port at the rear end of the dust treatment chamber 32 at a position between the handling drum 37 and the dust treatment drum 40. In addition, a small-diameter front roller 95 is pivotally supported by a horizontal axis at a position below the rear end of the handling chamber 31, and an endless wide flat belt 96 is stretched across the rear roller 94 and the front roller 95. Is provided.
これにより、排塵処理室３２の後端部の排塵口から落下する大きな藁屑が平ベルト９６上に落ちることなく、濾過部材４１を通過した細かい被処理物だけを平ベルト９６によって前方へ移送して揺動選別棚５２の中間部（グレンシーブ上）へ供給することができ、選別精度及び選別能力を向上させることができる。
As a result, large fine dust falling from the dust outlet at the rear end of the dust treatment chamber 32 does not fall on the flat belt 96, and only the fine object to be processed that has passed through the filter member 41 is moved forward by the flat belt 96. It can be transported and supplied to the intermediate part (on the grain sieve) of the swing sorting shelf 52, and the sorting accuracy and sorting ability can be improved.
また、前記前記後部ローラ９４を前部ローラ９５よりも高い位置に設置することにより、ベルト式移送装置９３を後上がり傾斜姿勢に設定する。これにより、該ベルト式移送装置９３による被処理物の前方への移送を促進し、被処理物を速やかに揺動選別棚５２の中間部へ供給でき、ベルト式移送装置９３上での被処理物の堆積を少なくして、選別精度及び選別能力を向上させることができる。
Further, by installing the rear roller 94 at a position higher than the front roller 95, the belt-type transfer device 93 is set in a rear-up and inclined posture. Thus, the forward transfer of the object to be processed by the belt type transfer device 93 can be promoted, and the object to be processed can be quickly supplied to the intermediate portion of the swing sorting shelf 52. The accumulation of objects can be reduced, and the sorting accuracy and sorting ability can be improved.
また、揺動選別棚５２後部のストローラック９７上側と排塵ファン５０との上下間隔部の空間を利用して大径の後部ローラ９４を配置し、該大径の後部ローラ９４へ駆動入力する構成とすることにより、ベルト式移送装置９３の駆動力を大きくすることができる。この場合、前記後部ローラ９４の駆動軸１００を、脱穀装置の奥側の側壁９９に取り付けた軸受１０１によって片持ち支持し、該駆動軸１００の突出端部に取り付けた入力プーリ１０２と、前記二番螺旋５５の軸の突出端部に取り付けた出力プーリ１０３との間に伝動ベルト１０４を巻き掛ける。尚、前部ローラ９５の従動軸１０５も、脱穀装置の奥側の側壁９９に取り付けた軸受（図示省略）によって片持支持する構成である。このように、ベルト式移送装置９３の伝動機構を脱穀装置の奥側外側面に配置することにより、該ベルト式移送装置９３への伝動機構を簡素に構成することができる。
Further, a large-diameter rear roller 94 is disposed using the space between the upper and lower parts of the stroller rack 97 at the rear of the swing sorting shelf 52 and the dust exhaust fan 50, and driving input is performed to the large-diameter rear roller 94. With the configuration, the driving force of the belt type transfer device 93 can be increased. In this case, the drive shaft 100 of the rear roller 94 is cantilevered by a bearing 101 attached to the side wall 99 on the back side of the threshing apparatus, and the input pulley 102 attached to the protruding end of the drive shaft 100, and the two A transmission belt 104 is wound around the output pulley 103 attached to the protruding end of the shaft of the spiral 55. The driven shaft 105 of the front roller 95 is also configured to be cantilevered by a bearing (not shown) attached to the side wall 99 on the back side of the threshing device. Thus, by arranging the transmission mechanism of the belt type transfer device 93 on the outer side outer surface of the threshing device, the transmission mechanism to the belt type transfer device 93 can be simply configured.
また、前記ベルト式移送装置９３は、排藁搬送装置４９の下側にも臨んでいるため、該排藁搬送装置４９によって搬送中の排藁から落下する刺さり粒をこのベルト式移送装置９３上に落下させて、揺動選別棚５２の中間部へ供給することができ、穀粒の回収損失を低減させて脱穀能力を向上させることができる。
Further, since the belt type transfer device 93 also faces the lower side of the waste transporting device 49, the bite particles falling from the waste being transported by the waste transporting device 49 are transferred onto the belt type transport device 93. And can be supplied to an intermediate part of the swing sorting shelf 52, and the grain recovery loss can be reduced to improve the threshing ability.
また、図１１に示すように、前記ベルト式移送装置９３の側部に沿って回収板９８の基部を固定し、該回収板９８の上端縁が排藁搬送装置４９の下側へ指向するような傾斜姿勢に設けてもよい。これにより、排藁搬送装置４９によって搬送中の排藁から落下する刺さり粒をこのベルト式移送装置９３上により正確に落下させて、揺動選別棚５２の中間部へ供給することができ、揺動選別棚５２におけるシーブ負荷を低減させ、穀粒の回収損失を低減させて脱穀能力を向上させることができる。
Further, as shown in FIG. 11, the base of the recovery plate 98 is fixed along the side portion of the belt type transfer device 93 so that the upper end edge of the recovery plate 98 is directed to the lower side of the waste transporting device 49. You may provide in an easy inclination posture. As a result, the stab particles that fall from the waste being conveyed by the waste transporting device 49 can be accurately dropped onto the belt-type transfer device 93 and supplied to the intermediate portion of the swing sorting shelf 52. The sheave load in the dynamic sorting shelf 52 can be reduced, the grain recovery loss can be reduced, and the threshing ability can be improved.
また、図１２、図１３に示すように、前記扱胴３７の後部を後方へ延長して四番処理胴１０６を形成してもよい。該四番処理胴１０６の周面には、前記扱歯３６よりも狭いピッチで処理歯１０７を植設し、該処理歯１０７を扱室３１から出た排藁の穂先側に作用させて、該穂先側に刺さり込んでいる穀粒を脱落させて前記ベルト式移送装置９３上に落下させるものである。これにより、排藁に刺さり込んだ穀粒を揺動選別棚５２上へ直接落下させることなく、ベルト式移送装置９３によって前方へ移送して揺動選別棚５２の中間部へ供給することができ、穀粒の回収損失を低減させて脱穀能力を向上させることができる。
Further, as shown in FIGS. 12 and 13, the fourth processing cylinder 106 may be formed by extending the rear portion of the handling cylinder 37 rearward. On the peripheral surface of the fourth processing barrel 106, the processing teeth 107 are implanted at a pitch narrower than that of the tooth handling 36, and the processing teeth 107 are allowed to act on the tip side of the waste discharged from the handling chamber 31, The grain stabbed on the tip side is dropped and dropped onto the belt type transfer device 93. Thereby, the grain stuck in the waste can be transferred forward by the belt type transfer device 93 and supplied to the intermediate portion of the swing sorting shelf 52 without dropping directly onto the swing sorting shelf 52. It is possible to improve the threshing ability by reducing the grain recovery loss.
また、図１４、図１５に示すように、前記回収板９８を設けずに、揺動選別棚５２上における前記四番処理胴１０６と一番螺旋５４との間に相当する位置に、前記扱室３１後端の排稈口１０８から排出される藁屑を一旦受けてから揺動選別棚５２上へ落とす受け装置１０９を取り付けてもよい。該受け装置１０９は、揺動選別棚５２の側壁部に連結する支持部１０９ａと、該支持部１０９ａの上部に支持されて後方の排塵ファン５０下側へ向けて延出する６本の藁屑ラック１０９ｂとから構成する。これにより、前記扱室３１の排稈口１０８から排出された藁屑の塊は、受け装置１０９の藁屑ラック１０９ｂによって篩い選別され、穀粒を含む細かな被選別物は藁屑ラック１０９ｂの隙間から揺動選別棚５２のシーブ１１０中間部上に落下して更に選別され、藁屑ラック１０９ｂの隙間から落下しない大きな藁屑は、該藁屑ラック１０９ｂ上を後方へ移送されて該藁屑ラック１０９ｂの後端部から揺動選別棚５２のシーブ１１０終端部上に落下して排藁ラック１１１に引き継がれて篩い選別される。しかして、四番処理胴１０６によって処理される排藁に刺さり込んだ穀粒は、単粒が主であり、二番処理を行なう必要がないため、上記のように構成することにより、四番処理胴１０６の作用を受けて落下した穀粒をそのまま一番螺旋５４に取り込んで回収してグレンタンク２１へ貯留することができ、二番処理を行なわないことによって、回収穀粒の損傷を防止することができ、品質の高い穀粒を収穫することができる。また、前記受け装置１０９は揺動選別棚５２と一体で揺動するため、該受け装置１０９の藁屑ラック１０９ｂが、四番処理胴１０６の作用を受ける排藁の穂先部のガイドとして作用し、四番処理胴１０６による刺さり粒の回収を促進させることができる。
As shown in FIGS. 14 and 15, the handling plate is not provided at the position corresponding to the position between the fourth processing cylinder 106 and the first spiral 54 on the swing sorting shelf 52 without providing the collection plate 98. A receiving device 109 that once receives the dust discharged from the discharge port 108 at the rear end of the chamber 31 and then drops it on the swing sorting shelf 52 may be attached. The receiving device 109 includes a support portion 109a connected to the side wall portion of the swing sorting shelf 52, and six ridges that are supported by the upper portion of the support portion 109a and extend toward the lower side of the rear dust exhaust fan 50. It consists of a waste rack 109b. As a result, the lump of swarf discharged from the discharge port 108 of the handling chamber 31 is screened and sorted by the swarf rack 109b of the receiving device 109, and fine objects to be sorted including grains are stored in the swarf rack 109b. Large waste that has fallen onto the intermediate portion of the sheave 110 of the swing sorting shelf 52 from the gap and further sorted, and does not fall from the gap in the waste rack 109b, is transferred rearward on the waste rack 109b and is transferred to the waste dust rack 109b. From the rear end portion of the rack 109b, it falls onto the end portion of the sheave 110 of the swing sorting shelf 52 and is taken over by the waste rack 111 to be screened. Therefore, the grain stuck in the waste treated by the fourth processing cylinder 106 is mainly a single grain and does not need to be subjected to the second processing. Grains that have fallen due to the action of the processing cylinder 106 can be directly collected in the spiral 54 and collected and stored in the glen tank 21, and damage to the recovered grains can be prevented by not performing the second treatment. Can harvest high quality kernels. Further, since the receiving device 109 swings integrally with the swing sorting shelf 52, the waste rack 109b of the receiving device 109 acts as a guide for the tip of the waste receiving the action of the fourth processing cylinder 106. The recovery of the stabbed grains by the fourth processing cylinder 106 can be promoted.
尚、図１６に示すように、前記扱網（濾過部材）３８を、上扱網３８ａと下扱網３８ｂとの二重構成としてもよい。前記上扱網３８ａと下扱網３８ｂとは、線状材を編んだ網に構成するか、若しくは鉄板に多数の漏下孔を穿設した目抜き板状に形成してもよい。鉄板に漏下孔を穿設した構成とすると、上扱網３８ａと下扱網３８ｂとを二重合わせにした場合に、両者間の隙間が小さくすることができる。そして、該上扱網３８ａ側を扱室３１側に固定的に取り付ける一方、前記下扱網３８ｂを上扱網３８ａの下面に沿わせて円弧方向に摺動調節可能に支持する。これにより、下扱網３８ｂを円弧方向に摺動させると、上扱網３８ａ側の漏下孔３８ａａと下扱網３８ｂ側の漏下孔３８ｂｂとが重合して、この重合度合いを変更することによって、扱網３８の漏下目合い（漏下孔の連通面積）が大小に調節される。そして、刈取脱穀作業を行なう圃場の条件や作物の条件（濡れた穀稈または乾いた穀稈など）や刈取作業車速に応じて、扱網３８の漏下目合いを変更することにより、扱室３１内で発生する藁屑や穀粒の漏下性を変更して、脱穀作業を円滑に行なうことができる。また、前記下扱網３８ｂを電動モータ（図示省略）によって円弧方向に摺動自在に構成し、コンバインの刈取作業車速を検出する車速センサを設けて、コントローラに対して、その入力側に前記車速センサを接続する一方、その出力側に前記電動モータを接続して構成してもよい。これにより、車速センサによって検出される車速が高速になるほど、電動モータへの出力によって下扱網３８ｂを円弧方向へ摺動させて扱網３８の漏下目合いが大きくなるように自動制御される。即ち、扱網３８の目合いが一定であると、車速が遅い場合には、扱網３８から穀粒の漏下が多いために穀粒が機外へ飛散して損失となり易い。これを解消するために、従来は、フィードチェン４８を車速に追従させて変速し、車速が遅い場合に穀稈の搬送速度を低下させ、穀稈の層によって扱網３８の目合いを塞ぎ、扱網３８の目合いからの穀粒の漏下を減少させ、損失を低減するように試みていた。しかしながら、このような従来技術では、圃場の条件や作物条件によって、充分に対応できず、収穫損失を防ぐことができなかった。しかるに、上述のように扱網３８の目合いを自動制御するように構成し、コンバインの車速が遅い場合には扱網３８の目合いを小さくし、車速が高速になると扱網３８の目合いを大きくすることによって、扱網３８からの穀粒の漏下量を調節して、収穫損失を少なくすることができる。
In addition, as shown in FIG. 16, it is good also considering the said handling net | network (filter member) 38 as the double structure of the upper handling net | network 38a and the lower handling net | network 38b. The upper handling net 38a and the lower handling net 38b may be configured as a net knitted with a linear material, or may be formed as a cut-out plate having a number of leakage holes formed in an iron plate. When the iron plate is provided with a leakage hole, when the upper handling net 38a and the lower handling net 38b are doubled, the gap between the two can be reduced. The upper handling net 38a side is fixedly attached to the handling chamber 31 side, while the lower handling net 38b is supported along the lower surface of the upper handling net 38a so as to be slidable in the arc direction. Thereby, when the lower handle net 38b is slid in the arc direction, the leak hole 38aa on the upper handle net 38a side and the leak hole 38bb on the lower handle net 38b side are overlapped to change the degree of polymerization. Thus, the leakage mesh (the communication area of the leakage holes) of the handling net 38 is adjusted to be large or small. Then, by changing the leakage level of the handling net 38 according to the field conditions, crop conditions (such as wet or dry grains), and the speed of the harvesting operation vehicle, the handling room is changed. The threshing work can be performed smoothly by changing the leakage of sawdust and grains generated in the inside 31. Further, the lower handling net 38b is configured to be slidable in an arc direction by an electric motor (not shown), a vehicle speed sensor for detecting the harvesting vehicle speed of the combine is provided, and the vehicle speed is input to the controller on the input side. While the sensor is connected, the electric motor may be connected to the output side. As a result, as the vehicle speed detected by the vehicle speed sensor becomes higher, the lower handling net 38b is slid in the arc direction by the output to the electric motor, so that the degree of leakage of the handling net 38 is automatically controlled. . That is, if the mesh of the handling net 38 is constant, when the vehicle speed is low, the grain is likely to be lost due to the scattering of the grain from the handling net 38 because the grain leaks frequently. In order to solve this problem, conventionally, the feed chain 48 is changed to follow the vehicle speed, and when the vehicle speed is slow, the conveying speed of the cereal is reduced, and the mesh of the handling net 38 is closed by the cereal layer. Attempts have been made to reduce grain loss by reducing grain leakage from the mesh of the handle net 38. However, such conventional techniques cannot sufficiently cope with the field conditions and crop conditions, and cannot prevent harvest loss. However, as described above, the scale of the handling net 38 is automatically controlled. When the vehicle speed of the combine is low, the scale of the handling net 38 is reduced, and when the vehicle speed is high, the scale of the handling net 38 is adjusted. By increasing the size, the amount of grain leakage from the handling net 38 can be adjusted to reduce the harvest loss.
また、上記上扱網３８ａ側を扱室３１側に固定的に取り付ける一方、下扱網３８ｂを上扱網３８ａの下面に沿わせて扱胴３７の軸芯方向に摺動調節可能に支持する構成としてもよい。これにより、下扱網３８ｂを扱胴３７の軸芯方向に摺動させると、上扱網３８ａ側の漏下孔３８ａａと下扱網３８ｂ側の漏下孔３８ｂｂとが重合して、この重合度合いを変更することによって、扱網３８の漏下目合い（漏下孔の連通面積）が大小に調節される。そして、刈取脱穀作業を行なう圃場の条件や作物の条件（濡れた穀稈または乾いた穀稈など）や刈取作業車速に応じて、扱網３８の漏下目合いを変更することにより、扱室３１内で発生する藁屑や穀粒の漏下性を変更して、脱穀作業を円滑に行なうことができる。また、前記下扱網３８ｂを電動モータ（図示省略）によって扱胴３７の軸芯方向に摺動自在に構成し、コンバインの刈取作業車速を検出する車速センサを設けて、コントローラに対して、その入力側に前記車速センサを接続する一方、その出力側に前記電動モータを接続して構成してもよい。これにより、車速センサによって検出される車速が高速になるほど、電動モータへの出力によって下扱網３８ｂを扱胴３７の軸芯方向へ摺動させて扱網３８の漏下目合いが大きくなるように自動制御される。即ち、扱網３８の目合いが一定であると、車速が遅い場合には、扱網３８から穀粒の漏下が多いために穀粒が機外へ飛散して損失となり易い。これを解消するために、従来は、フィードチェン４８を車速に追従させて変速し、車速が遅い場合に穀稈の搬送速度を低下させ、穀稈の層によって扱網３８の目合いを塞ぎ、扱網３８の目合いからの穀粒の漏下を減少させ、損失を低減するように試みていた。しかしながら、このような従来技術では、圃場の条件や作物条件によって、充分に対応できず、収穫損失を防ぐことができなかった。しかるに、上述のように扱網３８の目合いを自動制御するように構成し、コンバインの車速が遅い場合には扱網３８の目合いを小さくし、車速が高速になると扱網３８の目合いを大きくすることによって、扱網３８からの穀粒の漏下量を調節して、収穫損失を少なくすることができる。
The upper handling net 38a side is fixedly attached to the handling chamber 31 side, while the lower handling net 38b is supported along the lower surface of the upper handling net 38a so as to be slidable in the axial direction of the handling cylinder 37. It is good also as a structure. Thereby, when the lower handling net 38b is slid in the axial direction of the handling cylinder 37, the leakage hole 38aa on the upper handling net 38a side and the leakage hole 38bb on the lower handling net 38b side are polymerized, and this polymerization is performed. By changing the degree, the degree of leakage of the handling net 38 (the communication area of the leakage hole) is adjusted to be large or small. Then, by changing the leakage level of the handling net 38 according to the field conditions, crop conditions (such as wet or dry grains), and the speed of the harvesting operation vehicle, the handling room is changed. The threshing work can be performed smoothly by changing the leakage of sawdust and grains generated in the inside 31. Further, the lower handling net 38b is configured to be slidable in the axial direction of the handling cylinder 37 by an electric motor (not shown), and provided with a vehicle speed sensor for detecting the harvesting work vehicle speed of the combine. While the vehicle speed sensor is connected to the input side, the electric motor may be connected to the output side. As a result, the higher the vehicle speed detected by the vehicle speed sensor, the greater the degree of leakage of the handling net 38 by sliding the lower handling net 38b in the axial direction of the handling cylinder 37 by the output to the electric motor. Automatically controlled. That is, if the mesh of the handling net 38 is constant, when the vehicle speed is low, the grain is likely to be lost due to the scattering of the grain from the handling net 38 because the grain leaks frequently. In order to solve this problem, conventionally, the feed chain 48 is changed to follow the vehicle speed, and when the vehicle speed is slow, the conveying speed of the cereal is reduced, and the mesh of the handling net 38 is closed by the cereal layer. Attempts have been made to reduce grain loss by reducing grain leakage from the mesh of the handle net 38. However, such conventional techniques cannot sufficiently cope with the field conditions and crop conditions, and cannot prevent harvest loss. However, as described above, the scale of the handling net 38 is automatically controlled. When the vehicle speed of the combine is low, the scale of the handling net 38 is reduced, and when the vehicle speed is high, the scale of the handling net 38 is adjusted. By increasing the size, the amount of grain leakage from the handling net 38 can be adjusted to reduce the harvest loss.
また、上記上扱網３８ａ側を扱室３１側に固定的に取り付ける一方、下扱網３８ｂを上扱網３８ａの下面に沿わせて円弧方向と扱胴３７の軸芯方向との合成方向に摺動調節可能に支持する構成としてもよい。これにより、下扱網３８ｂを円弧方向と扱胴３７の軸芯方向との合成方向に摺動させると、上扱網３８ａ側の漏下孔３８ａａと下扱網３８ｂ側の漏下孔３８ｂｂとが重合して、この重合度合いを変更することによって、扱網３８の漏下目合い（漏下孔の連通面積）が大小に調節される。そして、刈取脱穀作業を行なう圃場の条件や作物の条件（濡れた穀稈または乾いた穀稈など）や刈取作業車速に応じて、扱網３８の漏下目合いを変更することにより、扱室３１内で発生する藁屑や穀粒の漏下性を変更して、脱穀作業を円滑に行なうことができる。また、前記下扱網３８ｂを電動モータ（図示省略）によって円弧方向及び扱胴３７の軸芯方向の合成方向に摺動自在に構成し、コンバインの刈取作業車速を検出する車速センサを設けて、コントローラに対して、その入力側に前記車速センサを接続する一方、その出力側に前記電動モータを接続して構成してもよい。これにより、車速センサによって検出される車速が高速になるほど、電動モータへの出力によって下扱網３８ｂを円弧方向及び扱胴３７の軸芯方向の合成方向へ摺動させて扱網３８の漏下目合いが大きくなるように自動制御される。即ち、扱網３８の目合いが一定であると、車速が遅い場合には、扱網３８から穀粒の漏下が多いために穀粒が機外へ飛散して損失となり易い。これを解消するために、従来は、フィードチェン４８を車速に追従させて変速し、車速が遅い場合に穀稈の搬送速度を低下させ、穀稈の層によって扱網３８の目合いを塞ぎ、扱網３８の目合いからの穀粒の漏下を減少させ、損失を低減するように試みていた。しかしながら、このような従来技術では、圃場の条件や作物条件によって、充分に対応できず、収穫損失を防ぐことができなかった。しかるに、上述のように扱網３８の目合いを自動制御するように構成し、コンバインの車速が遅い場合には扱網３８の目合いを小さくし、車速が高速になると扱網３８の目合いを大きくすることによって、扱網３８からの穀粒の漏下量を調節して、収穫損失を少なくすることができる。
Further, the upper handling net 38a side is fixedly attached to the handling chamber 31 side, while the lower handling net 38b is arranged along the lower surface of the upper handling net 38a in the direction of synthesis of the arc direction and the axial direction of the handling cylinder 37. It is good also as a structure supported so that sliding adjustment is possible. As a result, when the lower handle net 38b is slid in the combined direction of the arc direction and the axial center direction of the handle cylinder 37, the leak hole 38aa on the upper handle net 38a side and the leak hole 38bb on the lower handle net 38b side By polymerizing and changing the degree of polymerization, the leakage degree (communication area of the leakage hole) of the handling net 38 is adjusted to be large or small. Then, by changing the leakage level of the handling net 38 according to the field conditions, crop conditions (such as wet or dry grains), and the speed of the harvesting operation vehicle, the handling room is changed. The threshing work can be performed smoothly by changing the leakage of sawdust and grains generated in the inside 31. Further, the lower handling net 38b is configured to be slidable in an arc direction and a combined direction of the axial direction of the handling cylinder 37 by an electric motor (not shown), and a vehicle speed sensor for detecting a combine cutting work vehicle speed is provided. While connecting the said vehicle speed sensor to the input side with respect to a controller, you may comprise the said electric motor to the output side. Thus, as the vehicle speed detected by the vehicle speed sensor becomes higher, the lower net 38b slides in the arc direction and the combined direction of the axial direction of the handle cylinder 37 by the output to the electric motor, and the handle net 38 leaks. It is automatically controlled to increase the mesh. That is, if the mesh of the handling net 38 is constant, when the vehicle speed is low, the grain is likely to be lost due to the scattering of the grain from the handling net 38 because the grain leaks frequently. In order to solve this problem, conventionally, the feed chain 48 is changed to follow the vehicle speed, and when the vehicle speed is slow, the conveying speed of the cereal is reduced, and the mesh of the handling net 38 is closed by the cereal layer. Attempts have been made to reduce grain loss by reducing grain leakage from the mesh of the handle net 38. However, such conventional techniques cannot sufficiently cope with the field conditions and crop conditions, and cannot prevent harvest loss. However, as described above, the scale of the handling net 38 is automatically controlled. When the vehicle speed of the combine is low, the scale of the handling net 38 is reduced, and when the vehicle speed is high, the scale of the handling net 38 is adjusted. By increasing the size, the amount of grain leakage from the handling net 38 can be adjusted to reduce the harvest loss.
