コンバインの排稈カッターでは、この排稈カッターの切断部に供給されて切断する切断わらを、コンバインの刈取走行跡地面に幅広く、均一層に拡散して排出させることが要求されるが、株元側の拡散排出わら層が盛り上がる傾向にあって、後続の刈取走行作業で通る刈取分草杆や、刈刃装置等に干渉し、引っ掛け易くなったり、刈取作用を乱すこととなり易い。
In a combine waste cutter, it is required that the cutting straw supplied and cut to the cutting part of this waste cutter is spread widely on the ground of the combine harvesting run and diffused into a uniform layer and discharged. There is a tendency that the diffusion and discharge straw layer on the side rises, and it tends to interfere with the cut grass weeds passing by the subsequent cutting and traveling work, the cutting blade device, etc., and it becomes easy to catch or disturb the cutting action.
この発明は、排稈カッターの拡散排出室内に拡散ラセンや、拡散羽根車等の伝動回転部材を設けることなく、主としてこの拡散排出室を構成するリヤカバーと、左右両側部のサイドカバーとによって、簡潔な形態、構成として、切断部から排出される切断排稈を、穂先側位置へ均一層に的確に拡散排出させるものである。
According to the present invention, a diffusion spiral and a transmission rotating member such as a diffusion impeller are not provided in the diffusion discharge chamber of the discharge cutter, and the rear cover that mainly constitutes the diffusion discharge chamber and the side covers on both right and left sides are simplified. As a new form and configuration, the cutting waste discharged from the cutting part is accurately diffused and discharged to the tip side position in a uniform layer.
請求項１に記載の発明は、回転外周縁に切刃縁１を形成の刃盤２を配置したカッター軸３と、この切刃縁１と対向接近して排稈掻込回転する掻込縁４を形成の掻込盤５を配置したローター軸６とを、カッタフレーム７の株元側、穂先側の左右両側のサイドフレーム８，９間に亘って平行に軸装して、脱穀排稈装置１０から供給される排稈を受けて掻込みしながら切断排出する切断部１１を構成し、このカッタフレーム７の下側には、後側のリヤカバー１２部と左右両側のサイドカバー１３，１４部として覆う拡散室１５を形成して、この拡散室１５の株元部寄前側部には排風ファン１６の吹出口１７を形成して、前記切断部１１から切断排出される切断わらを、コンバイン車体の刈取走行跡域に亘って拡散排出しながら排稈処理するコンバインにおける排稈カッターの拡散装置において、前記リヤカバー１２の株元側端部の株元側サイドカバー１３内側面に、下端部を内側へ屈曲して傾斜案内面１９を形成して、前記拡散排風ファン１６による吹出口１７からの排風によって、株元側切断わらを、この株元側サイドカバー１３の内側面に吹き出して拡散案内させることを特徴とするコンバインにおける排稈カッターの拡散装置の構成とする。
The invention according to claim 1 is a cutter shaft 3 in which a blade 2 having a cutting edge 1 formed on the outer periphery of the rotation is disposed, and a scraping edge that rotates oppositely and approaches the cutting edge 1 to be swept away. 4 and the rotor shaft 6 on which the scoring disk 5 is formed is mounted in parallel between the side frames 8 and 9 on both the right and left sides of the cutter frame 7 on the stock base side and the tip side, A cutting part 11 for cutting and discharging while scraping while receiving the waste supplied from the apparatus 10 is configured. Under the cutter frame 7, a rear cover 12 on the rear side and side covers 13 and 14 on both left and right sides are formed. Forming a diffusion chamber 15 covering as a part, forming a blowout port 17 of the exhaust fan 16 on the front side of the stock part of the diffusion chamber 15, cutting straw discharged from the cutting part 11, Combine that removes waste while spreading and discharging over the harvesting area of the combine car body In the diffusing apparatus for the squeezing cutter, the inclined guide surface 19 is formed by bending the lower end inwardly on the inner side of the storing side cover 13 at the storing side end of the rear cover 12, and the diffusing exhaust air The structure of the diffusing device of the waste cutter in the combine is characterized in that the stock-side cut straw is blown out and guided to the inner surface of the stock-side side cover 13 by the exhaust air from the air outlet 17 by the fan 16. And
コンバイン作業において、刈取装置部で刈取られた穀稈が脱穀装置に送込まれて脱穀されて、この脱穀済排稈が排稈装置１０で後方へ搬送されて、排稈カッターのカッタ軸３及びローター軸６間の切断部１１に供給されて、下側の拡散室１５内へ排出される。この拡散室１５には、株元側寄り位置の吹出口１７から排風ファン１６による排風作用が行われていて、この株元側のサイドカバー１３から、この後端部のリヤカバー１２に亘るカバー隅部に亘って、吹出風が案内されて、リヤカバー１２に吹き当たる風圧は、そのまま後方へ逃げることはなく、サイドカバー１３下端部の傾斜案内面１９側へ案内されて、強く吹き当てられ、切断わらはこの拡散室１５内側下方の刈取跡地面に向けて拡散排出される。従って、前記切断部１１から切断されて拡散室１５に排出される株元部側の切断わらは、前記吹出口１７からの排風力によって、前記株元側のサイドカバー１３の内側面や、リヤカバー１２の内側面に亘るカバー隅部に沿って排出案内されて、このサイドカバー１３の下端部に形成の傾斜案内面１９に衝突案内されて、単にこの傾斜案内面１９に沿って摺動して滑落案内されるだけではなく、この傾斜案内面１９上に反射浮揚される状態となり易く、この切断わら排出の浮揚状態において、送風力によって拡散室１５の内方へ勢よく吹き飛ばされる。このように、傾斜案内面１９によって跳ね飛ばされるようにして反射放出されて、この傾斜案内面１９の下端縁から穂先側へできるだけ遠く離間した刈取幅跡地面位置へ拡散排出させる。前記傾斜案内面１９の下端縁は、後側のリヤカバー１２の下端縁部内、乃至これより上側に位置して、後側面に覆われているため、傾斜案内面１９によって、内側へ跳ね飛ばされる切断わらの拡散状態に外風圧を働かせないようにして、わらの拡散放出を円滑に、的確に行わせる。前記のように、傾斜案内面１９は、垂直状のサイドカバー１３の内側面に対して、この内側面部から下方へ吹き飛ばされる株元部側の切断わらを受けて穂先部側内方へ反射放出するように拡散排出させるものであるから、拡散室１５内側への屈曲角をできるだけ小さくして緩やかな傾斜案内面１９に形成することが好適であり、略４５度に形成して、排稈カッターの配置構成や、刈取穀稈の性状条件の変化に、広範囲に適応し易く設定することができる。
In the combine operation, the cereals harvested by the reaping device are sent to the threshing device and threshed, and the threshed waste is conveyed rearward by the squeezing device 10, and the cutter shaft 3 of the scouring cutter and It is supplied to the cutting part 11 between the rotor shafts 6 and discharged into the lower diffusion chamber 15. The diffusion chamber 15 is exhausted by the exhaust fan 16 from the outlet 17 located closer to the stocker side, and extends from the side cover 13 on the stocker side to the rear cover 12 at the rear end. The blown wind is guided over the corners of the cover, and the wind pressure blown against the rear cover 12 does not escape to the rear as it is, but is guided to the inclined guide surface 19 side at the lower end of the side cover 13 and blown strongly. The cut straw is diffused and discharged toward the cut ground below the diffusion chamber 15. Accordingly, the cutting straw on the stock side which is cut from the cutting part 11 and discharged into the diffusion chamber 15 is caused by the exhaust wind force from the blowout port 17, and the inner surface of the side cover 13 on the stock side and the rear cover. 12 is guided to be discharged along the corners of the cover over the inner surface of 12, is guided to collide with the inclined guide surface 19 formed at the lower end of the side cover 13, and simply slides along the inclined guide surface 19. In addition to being guided by sliding down, it is likely to be reflected and floated on the inclined guide surface 19, and in this floating state of discharge of the cut straw, it is blown away inward of the diffusion chamber 15 by the blowing force. In this way, the light is reflected and emitted so as to be bounced off by the inclined guide surface 19 and diffused and discharged to the cutting width trace ground position as far away as possible from the lower end edge of the inclined guide surface 19 toward the tip side. Since the lower end edge of the inclined guide surface 19 is located inside or above the lower end edge of the rear cover 12 on the rear side and covered by the rear side surface, the inclined guide surface 19 is cut off by the inclined guide surface 19 to the inside. By preventing external wind pressure from acting on the diffusion state of the straw, the diffusion and release of the straw is performed smoothly and accurately. As described above, the inclined guide surface 19 receives the cutting straw on the stock portion side blown downward from the inner side surface portion to the inner side surface of the vertical side cover 13 and reflects and emits the inward direction toward the tip portion side. Therefore, it is preferable that the angle of bending toward the inside of the diffusion chamber 15 is made as small as possible to form the gently inclined guide surface 19, and it is formed at approximately 45 degrees, and the waste cutter It can be set to easily adapt to a wide range to the change in the arrangement configuration and the property condition of the harvested cereal meal.
又、前記株元側サイドカバー１３の内側面に、下端部を内側へ屈曲して傾斜案内面１９を形成し、この傾斜案内面１９の下端縁部には、これよりも内側へ緩傾斜の緩傾斜案内面２０を屈曲形成させる。
Further, an inclined guide surface 19 is formed on the inner side surface of the stock-side side cover 13 by bending the lower end portion inward, and the lower end edge portion of the inclined guide surface 19 is inclined more gently inward than this. the gentle slope guide surface 20 Ru is bent.
前記株元側サイドカバー１３の内側面は、前記傾斜案内面１９の下端縁部に、緩傾斜案内面２０を屈曲形成するもので、この傾斜案内面１９で反射拡散されたわらや、拡散室１５の内側部等から飛散されるわら等を、この傾斜案内面１９の先端部から内方へ拡散させたいときは、この緩傾斜案内面２０に受けられて、拡散室１５内方位置へ案内させて排出することができ、この傾斜案内面１９直下位置での盛り上がり層を軽減して、均一層分布のわら拡散を行わせる。
The inner side surface of the stock side cover 13 is formed by bending a gently inclined guide surface 20 at the lower end edge of the inclined guide surface 19, and the straw reflected and diffused by the inclined guide surface 19, When it is desired to diffuse straw or the like scattered from the inner side or the like inward from the tip of the inclined guide surface 19, it is received by the gently inclined guide surface 20 and guided to the inner position of the diffusion chamber 15. It is possible to discharge, and the rising layer at a position directly below the inclined guide surface 19 is reduced, and straw diffusion with a uniform layer distribution is performed.
更に、前記株元側サイドカバー１３の下端縁部で、緩傾斜案内面２０の前端縁部には、直下に開放する直下開口部２１を形成する。
Further, at the lower end edge of the stocker side cover 13, a front opening edge 21 is formed at the front end edge of the gently inclined guide surface 20 so as to open directly below.
前記のように株元側のサイドカバー１３内側面部近くに落下される株元部の切断わらは、吹出口１７から吹き出される排風によって、下方へ吹き飛ばされて、このサイドカバー１３の後部内側部に形成の傾斜案内面１９に吹き当てられて、この傾斜案内面１９に反射されて、拡散室１５の内側方位置へ拡散排出される。又、この傾斜案内面１９の下端から落下するわらは、緩傾斜案内面２０上面に沿って更に拡散室１５内側へ吹き流されて、この緩傾斜案内面２０の内端縁部から排出落下される。又、このような株元側のサイドカバー１３の内側面近くに排出された切断わらであっても、排風ファン１６の排風力による放出力が弱く、又、切断わら片が小さく、軽い等によって、吹出口１７近くに落下する切断わらは、この株元側のサイドカバー１３の内側面前部近くに落して、下端部の直下開口部２１から直接刈取幅跡地面に排出される。この場合、直下開口部２１から直接刈取跡地面に排出されるわらは、わら量が少ないため、刈取装置の刈取を邪魔することにはなり難く、又、この緩傾斜案内面２０下端縁よりも内方位置に形成される拡散わら層の株元側際縁を乱すことも少い。
The cutting straw of the stock base part that is dropped near the inner side surface part of the side cover 13 on the stock side as described above is blown downward by the exhaust air blown out from the air outlet 17, and the rear inner side of the side cover 13 It is blown against the inclined guide surface 19 formed on the part, reflected by the inclined guide surface 19, and diffused and discharged to the inner position of the diffusion chamber 15. The straw falling from the lower end of the inclined guide surface 19 is further blown into the diffusion chamber 15 along the upper surface of the gently inclined guide surface 20 and discharged and dropped from the inner edge of the gently inclined guide surface 20. The Further, even if the straw is discharged near the inner surface of the side cover 13 on the stock side, the discharge by the exhaust wind of the exhaust fan 16 is weak, and the cut straw piece is small and light. Thus, the cut straw falling near the blowout port 17 falls near the front side of the inner side surface of the side cover 13 on the stock market side, and is directly discharged from the opening portion 21 directly below the lower end portion to the cutting width trace ground. In this case, the straw discharged directly from the direct opening 21 to the cut ground is less likely to interfere with the cutting of the cutting device because the amount of straw is small, and more than the lower end edge of the gently inclined guide surface 20. It is less likely to disturb the marginal side edge of the diffusion straw layer formed at the inward position.
請求項１に記載の発明は、排稈カッターの切断部１１から下方の拡散室１５へ切断排出される株元部側の切断わらは、この拡散室１５の前側上部の吹出口１７から後側下部へ向けて吹き出す排風力によって、前記株元側のサイドカバー１３の内側面や、リヤカバー１２の内側面に亘るカバー隅部に沿って排出案内されて、このサイドカバー１３の下端部に形成の傾斜案内面１９に衝突案内させて、この傾斜案内面１９の内方へ勢よく跳ね飛ばすように反射放出させて、この傾斜案内面１９の下端縁から穂先側へできるだけ遠くへ離間した刈取幅跡地面位置へ拡散排出させることができる。このため、傾斜案内面１９によって拡散室１５内方位置へ広く拡散される切断わらは、この傾斜案内面１９下端縁直下位置での盛上り層を少くすることができ、刈取走行幅に亘る均一な切断わらの拡散を容易化することができる。又、この切断わらの拡散形態を、排稈カッターを構成する株元側のサイドカバー１３と、リヤカバー１２とによって主体を構成し、この株元側のサイドカバー１３の下端前部に内側へ向けて傾斜の傾斜案内面１９を屈曲形成して、吹出口１７から吹き出される排風力を利用して、切断わらを拡散排出させるものであるから、構成が簡単、容易であり、軽量化でき、これら拡散室１５を覆うリヤカバー１２や、サイドカバー１３，１４等を取外して、拡散室１５内部の掃除、点検等のメンテナンス性を高めることができる。又、前記傾斜案内面１９の屈曲角度をできるだけ小さく急角度（略４５度）に折曲形成することによって、この傾斜案内面１９に比重の大きい株元部の切断わらを衝突させて拡散室１５内側遠くの位置へ拡散させることができ、拡散を円滑に、的確に行わせて、均一拡散を安定させることができる。
According to the first aspect of the present invention, the cutting straw on the stock base portion side cut and discharged from the cutting portion 11 of the waste cutter to the lower diffusion chamber 15 is rearward from the blowout port 17 at the front upper portion of the diffusion chamber 15. The exhausted wind blown toward the lower part is guided to discharge along the inner side surface of the side cover 13 on the stock market side and the corner of the cover over the inner side surface of the rear cover 12, and is formed at the lower end portion of the side cover 13. The cutting width is separated as far as possible from the lower end edge of the inclined guide surface 19 to the tip side by causing the inclined guide surface 19 to be collided and reflected and emitted so as to jump inwardly of the inclined guide surface 19. It can be diffused and discharged to the surface position. For this reason, the cutting straw diffused widely to the inner position of the diffusion chamber 15 by the inclined guide surface 19 can reduce the rising layer at the position directly below the lower end edge of the inclined guide surface 19, and is uniform over the cutting travel width. The diffusion of the cutting straw can be facilitated. In addition, the diffusion form of the cutting straw is composed mainly of the stocker side cover 13 and the rear cover 12 constituting the waste cutter, and is directed inward to the front end of the lower end of the stocker side cover 13. Since the slanted guide surface 19 is bent and the exhausted wind blown from the air outlet 17 is used to diffuse and discharge the cut straw, the configuration is simple and easy, and the weight can be reduced. By removing the rear cover 12 and the side covers 13 and 14 that cover these diffusion chambers 15, it is possible to improve the maintainability such as cleaning and inspection inside the diffusion chamber 15. Further, the bending angle of the inclined guide surface 19 is formed to be as small and steep as possible (approximately 45 degrees), so that a cutting straw having a large specific gravity collides with the inclined guide surface 19 to cause the diffusion chamber 15 to collide. It is possible to diffuse to a position far away from the inside, so that the diffusion can be performed smoothly and accurately, and the uniform diffusion can be stabilized.
又、前記株元側のサイドカバー１３の下端部に形成の傾斜案内面１９の下端縁に、これよりも緩傾斜の緩傾斜案内面２０を屈曲形成することによって、前記上部の傾斜案内面で十分に反射拡散されなかった切断わらが流下してきても、この傾斜案内面２０上面を流下案内させて、前記傾斜案内面１９の先端縁位置よりも穂先側に遠い位置へ正確に案内して排出することができる。構成も、サイドカバー１３の下端部を単に内側へ屈曲するだけであるから簡潔化することができる。又、前記傾斜案内面１９は、この株元側のサイドカバー１３を内側へ略４５度の角度に屈曲させて形成するのに対して、この緩傾斜案内面２０は、前記傾斜案内面１９の下端縁部を更に内側へ屈曲させて形成するもので、例えば、水平面より略３０度に屈曲させて、傾斜案内面１９よりも緩傾斜の緩傾斜案内面２０を形成すると共に、この緩傾斜案内面２０の傾斜方向の長さを適宜に設定することによって、切断わらの拡散排出位置を所望位置に決めることができ、この緩傾斜案内面２０の傾斜角が緩傾斜であっても、前記吹出口１７から排風作用によって、緩傾斜案内面２０上面の切断わらを掃き飛ばすようにして排出させることができ、円滑な拡散排出を行わせる。
Further, by forming a gently inclined guide surface 20 having a gentler inclination than the inclined guide surface 19 formed on the lower end portion of the side cover 13 on the stocker side, Even if the cut straw that has not been sufficiently reflected and diffused flows down, the upper surface of the inclined guide surface 20 is guided to flow down and is accurately guided to a position farther from the tip edge side of the inclined guide surface 19 and discharged. can do. The configuration can also be simplified because the lower end portion of the side cover 13 is simply bent inward. The inclined guide surface 19 is formed by bending the side cover 13 on the stock market side inward at an angle of approximately 45 degrees, whereas the gently inclined guide surface 20 is formed of the inclined guide surface 19. The lower end edge is further bent inward. For example, the lower end edge is bent at approximately 30 degrees from the horizontal plane to form a gently inclined guide surface 20 that is gentler than the inclined guide surface 19, and this gently inclined guide. By appropriately setting the length of the surface 20 in the direction of inclination, the diffusion discharge position of the cut straw can be determined as a desired position. Even if the inclination angle of the gentle inclination guide surface 20 is gentle, the blowing By exhausting air from the outlet 17, it is possible to discharge it by sweeping away the cutting straw on the upper surface of the gently inclined guide surface 20, and to perform smooth diffusion discharge.
更に、前記傾斜案内面１９の下端縁部において、この後側部には緩傾斜案内面２０を形成すると共に、前側部には直下に開放する直下開口部２１を形成したもので、この前側上部に形成される吹出口１７から吹き出される排風力の当り難い拡散室１５の前部少量域の切断わらを、この株元側のサイドカバー１３、乃至傾斜案内面１９の下端縁から直下開口部２１を経て直接下方へ排出案内させることができ、特に緩傾斜案内面２０を形成して画一的に穂先側寄り位置に決めた拡散分布域を、株元側の盛り上がりを少くした状態で、株元側へも少量分散させて、刈取走行幅全長に亘って拡散排出することができる。従って、前記緩傾斜案内面２０を部分的に形成すると、この緩傾斜案内面２０が形成されない部分では、これよりも株元側の位置に直下開口部２１から切断わらを落下し、緩傾斜案内面２０を設けた部分では、拡散室１５内側へ飛散排出して、わらの飛散排出方向を刈取走行幅方向へ分散することができ、理想に近い拡散させることができ、サイドカバー１３の形状によって、簡単に安価に生産することができる。
Further, at the lower end edge of the inclined guide surface 19, a gently inclined guide surface 20 is formed on the rear side, and a direct opening 21 is formed on the front side. A cutting straw in the front small amount region of the diffusion chamber 15 that is difficult to hit the exhaust wind force blown out from the blowout port 17 formed on the bottom side of the stock cover side cover 13 or from the lower end edge of the inclined guide surface 19 is opened directly below. 21 can be guided to discharge directly downward, and in particular, the diffusion distribution area that is formed at a position closer to the tip side by forming a gently inclined guide surface 20 with a small rise on the stock side, A small amount can also be dispersed to the stock market side and diffused and discharged over the entire cutting width. Therefore, when the gently inclined guide surface 20 is partially formed, the portion where the gently inclined guide surface 20 is not formed drops the cutting straw from the direct opening portion 21 at a position closer to the stocker side, thereby gently guiding the gently inclined guide. In the portion where the surface 20 is provided, it can be scattered and discharged to the inside of the diffusion chamber 15, the direction of scattering and discharging the straw can be dispersed in the cutting width direction, can be diffused near ideal, and depending on the shape of the side cover 13 Can be produced easily and inexpensively.
図面に基づいて、コンバインの脱穀装置２４は、刈取装置の後側に配置されて、多条刈取形態に刈取搬送される穀稈の供給を受けて、後部へ搬送しながら脱穀処理する。脱穀装置２４は、脱穀室２５内に、前後方向に沿う扱胴軸２６周りに回転する扱胴２７を軸装し、この脱穀室２５の一側に沿って開口する扱口２８に沿って、フィードチエン２９と、これと対向してフィードチエン２９の回転を摺動案内する挟扼杆とを設けて、このフィードチエン２９の回転により、前端部に供給される刈取穀稈の株元部を挟持して、穂先部を脱穀室２５内へ供給して、前側の供給口３３から後側の排出口３０へ搬送しながら、扱胴２７による脱穀作用を行わせる。
Based on the drawings, the combine threshing device 24 is arranged on the rear side of the reaping device, receives the supply of the cereals that are harvested and conveyed in the multi-row reaping mode, and performs the threshing process while being conveyed to the rear. The threshing device 24 is equipped with a handling cylinder 27 that rotates around a handling cylinder shaft 26 along the front-rear direction in a threshing chamber 25, and along a handling port 28 that opens along one side of the threshing chamber 25. A feed chain 29 and a pinch that slides and guides the rotation of the feed chain 29 are provided so as to face the feed chain 29. By the rotation of the feed chain 29, the stock base part of the harvested cereal meal supplied to the front end portion While being sandwiched, the tip portion is supplied into the threshing chamber 25, and the threshing action by the handling cylinder 27 is performed while being conveyed from the front supply port 33 to the rear discharge port 30.
前記脱穀室２５の後側に排稈室３１、及び排稈装置１０を設け、この排稈室３１の後側端に排稈カッター３２を着脱自在に配置する。排稈室３１の株元部側下側には、シロッコファン形態の排風ファン１６を構成し、このファン１６を回転することにより、脱穀室２５、乃至後部排稈室３１の選別、排塵等を吸引して、この吸引風を後側の吹出口１７から、排稈カッター３２下部の拡散室１５内へ排風するように構成している。前記排稈装置１０は、株元側と穂先側との平行な二連のチェンを後方穂先より位置へ向けて斜め方向へ掛け渡して、下側に沿うガイドレール上面を摺動回転させることによって、前記排出口３０から排出される脱穀済排稈を受継挟持して、排稈室３１の上部を後方へ搬送する。この排稈装置１０による排稈作用は、排稈の稈身方向を横倒姿勢として、株元部をフィードチエン２９乃至排風ファン１６の側に向け、穂先部をこれらとは反対の側へ向けた状態、姿勢を維持して行われる。この排稈装置１０の終端部に切替ガイド３４を設け、この切替ガイド３４を下側に位置させて、排稈カッター３２の上側に位置させるときは、排稈装置１０による排稈作用は、排稈カッター３２の後側位置へ直接排送されるが、切替ガイド３４を上側へ回動して排稈通路を交差することによって、排稈が下側の排稈カッター３２の切断部１１側へ供給案内される。この切替ガイド３４によって排稈カッター３２の切断部１１へ落下供給される排稈は、稈身をこの切断部１１、乃至カッター軸３、ローター軸６等と平行状態にして供給されて、全長を略同時に短かく切断される。
A waste chamber 31 and a waste device 10 are provided on the rear side of the threshing chamber 25, and a waste cutter 32 is detachably disposed on the rear side end of the waste room 31. A sirocco fan-shaped exhaust fan 16 is formed on the lower side of the stock removal chamber 31 on the stock base side. By rotating the fan 16, the threshing chamber 25 or the rear waste chamber 31 is selected and dust is discharged. The suction air is exhausted from the rear outlet 17 into the diffusion chamber 15 below the exhaust cutter 32. The evacuation device 10 hangs a pair of parallel chains on the stock side and the tip side in an oblique direction from the rear tip toward the position, and slides and rotates the upper surface of the guide rail along the lower side. Then, the threshed waste discharged from the discharge port 30 is handed over and the upper portion of the waste chamber 31 is conveyed backward. The evacuation action of the evacuation device 10 is such that the slimming direction of the evacuation is in a sideways posture, the stock base portion is directed to the feed chain 29 or the exhaust fan 16 side, and the tip portion is directed to the opposite side. This is done while maintaining the orientation and posture. When the switching guide 34 is provided at the terminal portion of the rejecting device 10 and the switching guide 34 is positioned on the lower side and positioned on the upper side of the rejecting cutter 32, the rejecting action by the rejecting device 10 is reduced. The waste is directly discharged to the rear side position of the scissors cutter 32, but by turning the switching guide 34 upward and crossing the waste passage, the waste is moved to the cutting portion 11 side of the lower waste cutter 32. The supply is guided. The waste that is dropped and supplied to the cutting part 11 of the waste cutter 32 by the switching guide 34 is supplied with the slimming parallel to the cutting part 11 or the cutter shaft 3, the rotor shaft 6, etc. It is cut short at substantially the same time.
前記排稈カッター３２のカッター軸３やローター軸６、排稈装置１０、及び排風ファン１６等は、コンバイン本体側の連動部から伝動回転される。又、コンバインは、左右一対のクローラ４０、４１を有して、刈取走行することができるが、多条刈取形態の刈取装置を装着するコンバインでは、この株元側の側端部に配置される分草杆４２が、コンバイン作業の折返し復行程時において、これから刈取ろうとする刈取幅の穂先側横外側端の穀稈Ａの外側部と、往行程において切断排出されたわら層Ｂの株元側わら層Ｃ端部との間に位置して、分草推進するようになり、従って、この分草杆４２位置のわら層Ｃ端部が接近した位置にあると、分草杆４２によってわら層Ｃの一部を刈取穀稈Ａ側へ掻き取って、刈取穀稈Ａと共に刈取装置へ取込んで脱穀装置２４へ搬送することが起こり易いものであるが、この発明では、このわら層Ｃ端部の盛り上がりを低くするため、分草杆４２がこのわら層Ｃに接近して通っても掻き取りを少くすることができる。
The cutter shaft 3, the rotor shaft 6, the exhaust device 10, the exhaust fan 16, and the like of the exhaust cutter 32 are transmitted and rotated from an interlocking portion on the combine body side. In addition, the combine has a pair of left and right crawlers 40 and 41, and can be cut and traveled. However, in a combine equipped with a multi-row cutting type cutting device, the combine is disposed at the side end on the stock side. At the time of the return and return stroke of the combine work, the weed ridge 42 is the outer portion of the cereal A at the tip side lateral outer end of the cutting width to be cut from now on, and the stock side of the straw layer B cut and discharged in the forward stroke It is located between the end of the straw layer C and promotes weeding. Therefore, when the end of the straw layer C at the position of the weed ridge 42 is in the close position, the straw layer is pushed by the weed ridge 42. It is likely that a part of C is scraped to the side of the harvested grain culm A, taken into the harvesting device together with the harvested grain culm A, and conveyed to the threshing device 24. In the present invention, the end of the straw layer C In order to lower the climax of the club, the hay 42 is this straw Through close to the C can be less the scraping also.
ここにおいて、この発明は、回転外周縁に切刃縁１を形成の刃盤２を配置したカッター軸３と、この切刃縁１と対向接近して排稈掻込回転する掻込縁４を形成の掻込盤５を配置したローター軸６とを、カッタフレーム７の株元側、穂先側の左右両側のサイドフレーム８，９間に亘って平行に軸装して、脱穀排稈装置１０から供給される排稈を受けて掻込みしながら切断排出する切断部１１を構成し、このカッタフレーム７の下側には、後側のリヤカバー１２部と左右両側のサイドカバー１３，１４部として覆う拡散室１５を形成して、この拡散室１５の株元部寄前側部には排風ファン１６の吹出口１７を形成して、前記切断部１１から切断排出される切断わらを、コンバイン車体の刈取走行跡域に亘って拡散排出しながら排稈処理するコンバインにおける排稈カッターの拡散装置において、前記リヤカバー１２の株元側端部の株元側サイドカバー１３内側面に、下端部を内側へ屈曲して傾斜案内面１９を形成して、前記拡散排風ファン１６による吹出口１７からの排風によって、株元側切断わらを、この株元側サイドカバー１３の内側面に吹き出して拡散案内させることを特徴とするコンバインにおける排稈カッターの拡散装置の構成とする。
Here, the present invention includes a cutter shaft 3 in which a blade 2 having a cutting edge 1 formed on the outer periphery of the rotation is disposed, and a scraping edge 4 that is opposed to and approaches the cutting edge 1 and that is swallowed and rotated. The rotor shaft 6 on which the forming scoring disk 5 is arranged is mounted in parallel between the side frames 8 and 9 on both the left and right sides of the stock frame side and the tip side of the cutter frame 7, and the threshing / removing device 10 The cutting part 11 is configured to receive and discharge the waste supplied from the cutter and cut and discharge it. The lower part of the cutter frame 7 includes a rear cover 12 part on the rear side and side cover parts 13 and 14 on the left and right sides. A covering diffusion chamber 15 is formed, and a blower outlet 17 of the exhaust fan 16 is formed at the front side of the stock base portion of the diffusion chamber 15 so that the cutting straw cut and discharged from the cutting portion 11 is combined with the combine vehicle body. That removes waste while diffusing and discharging over the area of cutting and running In the diffusing apparatus of the waste cutter, the inclined guide surface 19 is formed on the inner surface of the stocker side cover 13 at the stocker side end of the rear cover 12 by bending the lower end portion inwardly. According to the present invention, there is provided a diffusion device for a waste cutter in a combine, characterized in that the stock-side cut straw is blown out and guided to the inner surface of the stock-side side cover 13 by exhausting air from the outlet 17 by the wind fan 16. The configuration.
コンバイン作業において、刈取装置部で刈取られた穀稈が脱穀装置に送込まれて脱穀されて、この脱穀済排稈が排稈装置１０で後方へ搬送されて、排稈カッターのカッタ軸３及びローター軸６間の切断部１１に供給されて、下側の拡散室１５内へ排出される。この拡散室１５には、株元側寄り位置の吹出口１７から排風ファン１６による排風作用が行われていて、この株元側のサイドカバー１３から、この後端部のリヤカバー１２に亘るカバー隅部に亘って、吹出風が案内されて、リヤカバー１２に吹き当たる風圧は、そのまま後方へ逃げることはなく、サイドカバー１３下端部の傾斜案内面１９側へ案内されて、強く吹き当てられ、切断わらはこの拡散室１５内側下方の刈取跡地面に向けて拡散排風される。従って、前記切断部１１から切断されて拡散室１５に排出される株元部側の切断わらは、前記吹出口１７からの排風力によって、前記株元側のサイドカバー１３の内側面や、リヤカバー１２の内側面に亘るカバー隅部に沿って排出案内されて、このサイドカバー１３の下端部に形成の傾斜案内面１９に衝突案内されて、単にこの傾斜案内面１９に沿って摺動して滑落案内されるだけではなく、この傾斜案内面１９上に反射浮揚される状態となり易く、この切断わら排出の浮揚状態において、送風力によって拡散室１５の内方へ勢よく吹き飛ばされる。このように、傾斜案内面１９によって跳ね飛ばされるようにして反射放出されて、この傾斜案内面１９の下端縁から穂先側へできるだけ遠く離間した刈取幅跡地面位置へ拡散排出させる。前記傾斜案内面１９の下端縁は、後側のリヤカバー１２の下端縁部内、乃至これより上側に位置して、後側面に覆われているため、傾斜案内面１９によって、内側へ跳ね飛ばされる切断わらの拡散状態に外風圧を働かせないようにして、わらの拡散放出を円滑に、的確に行わせる。前記のように、傾斜案内面１９は、垂直状のサイドカバー１３の内側面に対して、この内側面部から下方へ吹き飛ばされる株元部側の切断わらを受けて穂先部側内方へ反射放出するように拡散排出させるものであるから、拡散室１５内側への屈曲角をできるだけ小さくして緩やかな傾斜案内面１９に形成することが好適であり、略４５度に形成して、排稈カッターの配置構成や、刈取穀稈の性状条件の変化に、広範囲に適応し易く設定することができる。
In the combine operation, the cereals harvested by the reaping device are sent to the threshing device and threshed, and the threshed waste is conveyed rearward by the squeezing device 10, and the cutter shaft 3 of the scouring cutter and It is supplied to the cutting part 11 between the rotor shafts 6 and discharged into the lower diffusion chamber 15. The diffusion chamber 15 is exhausted by the exhaust fan 16 from the outlet 17 located closer to the stocker side, and extends from the side cover 13 on the stocker side to the rear cover 12 at the rear end. The blown wind is guided over the corners of the cover, and the wind pressure blown against the rear cover 12 does not escape to the rear as it is, but is guided to the inclined guide surface 19 side at the lower end of the side cover 13 and blown strongly. The cut straw is diffused and exhausted toward the cut ground below the diffusion chamber 15. Accordingly, the cutting straw on the stock side which is cut from the cutting part 11 and discharged into the diffusion chamber 15 is caused by the exhaust wind force from the blowout port 17, and the inner surface of the side cover 13 on the stock side and the rear cover. 12 is guided to be discharged along the corners of the cover over the inner surface of 12, is guided to collide with the inclined guide surface 19 formed at the lower end of the side cover 13, and simply slides along the inclined guide surface 19. In addition to being guided by sliding down, it is likely to be reflected and floated on the inclined guide surface 19, and in this floating state of discharge of the cut straw, it is blown away inward of the diffusion chamber 15 by the blowing force. In this way, the light is reflected and emitted so as to be bounced off by the inclined guide surface 19 and diffused and discharged to the cutting width trace ground position as far away as possible from the lower end edge of the inclined guide surface 19 toward the tip side. Since the lower end edge of the inclined guide surface 19 is located inside or above the lower end edge of the rear cover 12 on the rear side and covered by the rear side surface, the inclined guide surface 19 is cut off by the inclined guide surface 19 to the inside. By preventing external wind pressure from acting on the diffusion state of the straw, the diffusion and release of the straw is performed smoothly and accurately. As described above, the inclined guide surface 19 receives the cutting straw on the stock portion side blown downward from the inner side surface portion to the inner side surface of the vertical side cover 13 and reflects and emits the inward direction toward the tip portion side. Therefore, it is preferable that the angle of bending toward the inside of the diffusion chamber 15 is made as small as possible to form the gently inclined guide surface 19, and it is formed at approximately 45 degrees, and the waste cutter It can be set to easily adapt to a wide range to the change in the arrangement configuration and the property condition of the harvested cereal meal.
又、前記株元側サイドカバー１３の内側面に、下端部を内側へ屈曲して傾斜案内面１９を形成し、この傾斜案内面１９の下端縁部には、これよりも内側へ緩傾斜の緩傾斜案内面２０を屈曲形成する。
Further, an inclined guide surface 19 is formed on the inner side surface of the stock-side side cover 13 by bending the lower end portion inward, and the lower end edge portion of the inclined guide surface 19 is inclined more gently inward than this. The gently inclined guide surface 20 is bent.
前記株元側サイドカバー１３の内側面は、前記傾斜案内面１９の下端縁部に、緩傾斜案内面２０を屈曲形成するもので、この傾斜案内面１９で反射拡散されたわらや、拡散室１５の内側部等から飛散されるわら等を、この傾斜案内面１９の先端部から内方へ拡散させたいときは、この緩傾斜案内面２０に受けられて、拡散室１５内方位置へ案内させて排出することができ、この傾斜案内面１９直下位置での盛り上がり層を軽減して、均一層分布のわら拡散を行わせる。
The inner side surface of the stock side cover 13 is formed by bending a gently inclined guide surface 20 at the lower end edge of the inclined guide surface 19, and the straw reflected and diffused by the inclined guide surface 19, When it is desired to diffuse straw or the like scattered from the inner side or the like inward from the tip of the inclined guide surface 19, it is received by the gently inclined guide surface 20 and guided to the inner position of the diffusion chamber 15. It is possible to discharge, and the rising layer at a position directly below the inclined guide surface 19 is reduced, and straw diffusion with a uniform layer distribution is performed.
又、前記株元側サイドカバー１３の下端縁部で、緩傾斜案内面２０の前端縁部には、直下に開放する直下開口部２１を形成する。
Further, at the lower end edge of the stock-side side cover 13, a lower opening 21 is formed at the front end edge of the gently inclined guide surface 20 so as to open directly below.
前記のように株元側のサイドカバー１３内側面部近くに落下される株元部の切断わらは、吹出口１７から吹き出される排風によって、下方へ吹き飛ばされて、このサイドカバー１３の後部内側部に形成の傾斜案内面１９に吹き当てられて、この傾斜案内面１９に反射されて、拡散室１５の内側方位置へ拡散排出される。又、この傾斜案内面１９の下端から落下するわらは、緩傾斜案内面２０上面に沿って更に拡散室１５内側へ吹き流されて、この緩傾斜案内面２０の内端縁部から排出落下される。又、このような株元側のサイドカバー１３の内側面近くに排出された切断わらであっても、排風ファン１６の排風力による放出力が弱く、又、切断わら片が小さく、軽い等によって、吹出口１７近くに落下する切断わらは、この株元側のサイドカバー１３の内側面前部近くに落して、下端部の直下開口部２１から直接刈取幅跡地面に排出される。この場合、直下開口部２１から直接刈取跡地面に排出されるわらは、わら量が少ないため、刈取装置の刈取を邪魔することにはなり難く、又、この緩傾斜案内面２０下端縁よりも内方位置に形成される拡散わら層の株元側際縁を乱すことも少い。
The cutting straw of the stock base part that is dropped near the inner side surface part of the side cover 13 on the stock side as described above is blown downward by the exhaust air blown out from the air outlet 17, and the rear inner side of the side cover 13 It is blown against the inclined guide surface 19 formed on the part, reflected by the inclined guide surface 19, and diffused and discharged to the inner position of the diffusion chamber 15. The straw falling from the lower end of the inclined guide surface 19 is further blown into the diffusion chamber 15 along the upper surface of the gently inclined guide surface 20 and discharged and dropped from the inner edge of the gently inclined guide surface 20. The Further, even if the straw is discharged near the inner surface of the side cover 13 on the stock side, the discharge by the exhaust wind of the exhaust fan 16 is weak, and the cut straw piece is small and light. Thus, the cut straw falling near the blowout port 17 falls near the front side of the inner side surface of the side cover 13 on the stock market side, and is directly discharged from the opening portion 21 directly below the lower end portion to the cutting width trace ground. In this case, the straw discharged directly from the direct opening 21 to the cut ground is less likely to interfere with the cutting of the cutting device because the amount of straw is small, and more than the lower end edge of the gently inclined guide surface 20. It is less likely to disturb the marginal side edge of the diffusion straw layer formed at the inward position.
前記株元側のサイドカバー１３は、垂直面状に形成し、この下端部に形成する傾斜案内面１９の角度は略４５度に形成し、サイドカバー１３上面部との間に折曲げた屈曲部３５を形成する。又、この傾斜案内面１９の下端部の緩傾斜案内面２０との間にも内側に折曲げた屈曲部３６を形成する。このように、各傾斜案内面１９や、緩傾斜案内面２０等の間の屈曲部に角部を形成することによって、比較的薄い板金製、乃至合成樹脂製であっても、全体として剛性を高めて軽量で安定した拡散カバーの形態とすることができ、傾斜案内面１９や、緩傾斜案内面２０を平板面形態として、単にわらを滑落案内させるだけでなく、反発、反射させて、切断わらを傾斜案内面１９、緩傾斜案内面２０上に浮上させるようにして、吹出口１７からの排風を当てて穂先側寄拡散室１５へ落下案内することにより、わらの拡散効果を高めることができる。特に、わらの湿度が高いときは、わらが傾斜案内面１９や緩傾斜案内面２０に付着し難く、拡散排出が効果的に行われる。
The side cover 13 on the stock side is formed in a vertical plane shape, and the angle of the inclined guide surface 19 formed on the lower end portion thereof is approximately 45 degrees, and is bent between the upper surface portion of the side cover 13 A portion 35 is formed. Further, a bent portion 36 that is bent inward is formed between the lower end portion of the inclined guide surface 19 and the gently inclined guide surface 20. In this way, by forming the corners at the bent portions between the inclined guide surfaces 19 and the gently inclined guide surfaces 20, the overall rigidity can be obtained even if they are made of relatively thin sheet metal or synthetic resin. It can be made into a light, stable and stable diffusion cover, and the inclined guide surface 19 and the gently inclined guide surface 20 are formed into flat plate surfaces so that the straw is not only slid down and guided, but is repelled, reflected and cut. The straw is floated on the inclined guide surface 19 and the gently inclined guide surface 20, and the exhaust effect from the blower outlet 17 is applied to guide the fall to the tip side diffusion chamber 15, thereby enhancing the straw diffusion effect. Can do. In particular, when the humidity of the straw is high, the straw hardly adheres to the inclined guide surface 19 or the gently inclined guide surface 20, and the diffusion and discharge are performed effectively.
又、前記傾斜案内面１９の下端縁部に形成する直下開口部２１は、この傾斜案内面１９の下端縁の前後方向幅を、前側半分程に切り欠いだ形態（図５）とするもよく、緩傾斜案内面２０部を前後対角線方向に斜め方向に切り欠きした形態（図６）とするもよく、又、これら緩傾斜案内面２０から傾斜案内面１９の前下端面部に亘って深く傾斜する形態（図７）に形成することも可能である。いずれの形態においても、吹出口１７から排風されて吹き飛ばされる切断わらは、傾斜案内面１９の前半部面上に集中して吹出落下されるため、前記緩傾斜案内面２０部から拡散排出されるわら量は多く、これに対して、吹出口１９から後側へ吹き飛ばされる作用力が小さく、傾斜案内面１９の前端部側に排出される比較的比重の軽いわらは、少量として直下開口部２１から直下位置に排出されて、この株元側のわら層Ｃ端部の盛り上がりを低くすることができる。
Further, the directly lower opening 21 formed at the lower end edge of the inclined guide surface 19 may have a form in which the width in the front-rear direction of the lower end edge of the inclined guide surface 19 is cut out to the front half (FIG. 5). Further, the gently inclined guide surface 20 may be cut in a diagonal direction in the front-rear diagonal direction (FIG. 6), and the inclined surface from the gently inclined guide surface 20 to the front lower end surface of the inclined guide surface 19 may be deeply inclined. It is also possible to form in the form (FIG. 7). In any form, the cutting straw blown off and blown out from the outlet 17 is concentrated and blown down on the front half part surface of the inclined guide surface 19, so that it is diffused and discharged from the 20 part of the gently inclined guide surface. On the other hand, the amount of straw that is blown away from the outlet 19 to the rear side is small, and the straw having a relatively low specific gravity discharged to the front end side of the inclined guide surface 19 has a small amount as a direct opening. It is discharged | emitted from 21 to a directly lower position, and the rise of the straw layer C edge part by this stock side can be made low.
