JP2009296994A - Threshing section for combine - Google Patents

Threshing section for combine Download PDF

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JP2009296994A
JP2009296994A JP2008158136A JP2008158136A JP2009296994A JP 2009296994 A JP2009296994 A JP 2009296994A JP 2008158136 A JP2008158136 A JP 2008158136A JP 2008158136 A JP2008158136 A JP 2008158136A JP 2009296994 A JP2009296994 A JP 2009296994A
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threshing
handling
spiral
tooth
adjacent
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JP5336113B2 (en
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Makoto Odate
誠 尾立
Toshiyuki Shimaoka
俊行 島岡
Kanta Kusachi
寛太 草地
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Yanmar Co Ltd
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Yanmar Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a threshing section for combine which reduces grain loss during threshing work and improves with improved threshing performance. <P>SOLUTION: A threshing drum (31) of a threshing section (30) for a combine is provided with first threshing teeth (313) arranged along a first helix 301 which is coaxial with the threshing drum 31. The threshing drum is also provided with second threshing teeth arranged at positions which are adjacent in the front-rear direction to the first threshing teeth. The first threshing teeth and the second threshing teeth are arranged such that the first and second threshing teeth are displaced from each other in the front view. In a concave 32, sieving body-forming members (322A) of a sieving body (322) are rotatably supported on a frame body (321). Intervals between adjacent sieve body forming pieces in the curved direction of the sieve body is set in such a way that the adjacent sieve body forming pieces are not simultaneously opposed to the tip parts of each of the threshing teeth adjacent in the longitudinal direction of the threshing cylinder in the front view of the threshing cylinder. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、扱胴およびコンケーブを備える、コンバインの脱穀部に関する。   The present invention relates to a combine threshing unit including a handling cylinder and a concave.

従来、扱胴の下方にコンケーブを配設する、コンバインの脱穀部が知られている(例えば、特許文献1参照。)。このようなコンケーブは、扱胴周方向に沿う円弧状の枠体形成片(横桟)と、扱胴軸線方向に沿う篩い体形成片(縦桟)とを格子状に枠組みし、篩い体形成片をその軸線回りに遊転自在とするように構成されている。
特開平10−210851号公報
2. Description of the Related Art Conventionally, there is known a combine threshing section in which a concave is disposed below a handling cylinder (for example, see Patent Document 1). Such concaves form a sieving body by forming an arcuate frame-forming piece (horizontal beam) along the circumferential direction of the cylinder and a sieve-forming piece (vertical beam) along the axis direction of the cylinder in a grid pattern. The piece is configured to be freely rotatable around its axis.
Japanese Patent Laid-Open No. 10-210851

従来のようなコンバインの脱穀部において、扱胴は、複数の扱歯(独立扱歯)を、胴部の外周面に取り付けられ、所定の螺旋ピッチをもって設定された螺旋に沿って扱胴周方向に並べるとともに、扱胴の軸線と平行な直線に沿って扱胴軸線方向に並べて構成されている。   In a conventional threshing unit for a combine, a handling cylinder has a plurality of teeth (independent teeth) attached to the outer peripheral surface of the trunk, and a cylinder circumferential direction along a spiral set with a predetermined helical pitch. And arranged in the cylinder axis direction along a straight line parallel to the axis of the cylinder.

このことから、脱穀作業時に扱胴が回転されて、穀稈が扱胴にて搬送される際、前後方向に一列に配置された扱歯群が、穀稈をコンケーブの篩い体の篩い体形成片と同時に挟むこととなり、穀稈の流れに速度差が生じず、穀稈に刺さり込んだ穀粒を当該穀稈から分離しにくくなっていた。そのため、穀粒を穀稈から分離することができないまま当該穀稈を外部に排出して、穀粒損失を発生させる場合があった。   From this, when the barrel is rotated during the threshing operation and the cereals are transported by the barrel, the tooth handling groups arranged in a line in the front-rear direction form the sieving body of the concave sieve. It was sandwiched at the same time as the piece, and there was no speed difference in the flow of the cereals, making it difficult to separate the stabbed grains from the cereals. For this reason, there is a case where the grain loss is caused by discharging the grain meal to the outside without being able to separate the grain from the grain meal.

そこで本発明は、脱穀作業時の穀粒損失を低減させて、脱穀性能の向上を図ることができる、コンバインの脱穀部を提供することを目的とする。   Then, an object of this invention is to provide the threshing part of the combine which can aim at the improvement of the threshing performance by reducing the grain loss at the time of threshing work.

本発明の解決しようとする課題は以上の如くであり、次にこの課題を解決するための手段を説明する。   The problems to be solved by the present invention are as described above. Next, means for solving the problems will be described.

即ち、請求項1においては、前後方向の軸線回りに回転可能に配設される扱胴と、前記扱胴の下方に配設されるコンケーブとを備える、コンバインの脱穀部であって、前記扱胴は、前後方向に延伸される円筒形状の胴部と、前記胴部の外周面に取付けられ、扱胴径方向外側に突出される複数の扱歯とを備えて、前記扱歯を、当該扱胴と軸線が一致する第一螺旋に沿って配置するとともに、前記扱歯と、この扱歯に対して前記第一螺旋の略一周前または後に前後方向で隣り合う扱歯とを、当該扱胴の正面視で、扱胴周方向に互いにずらして配置し、コンケーブは、前記扱胴の胴部の外周面に沿って下方へ凸状に湾曲させた前後の枠体形成片と、この前後の枠体形成片の左右の各端部間に架設する左右の枠体形成片とを有する枠体と、前後方向に延伸する棒状の複数の篩い体形成片を有する篩い体とを備えて、前記各篩い体形成片を、前記前後の枠体形成片の間に湾曲方向に所定間隔ごとに架設するとともに、これらの前後の枠体形成片に当該篩い体形成片の軸線回りに回転自在に支持し、前記扱胴の正面視で、前記篩い体の湾曲方向で隣り合う篩い体形成片同士の間隔を、これらの互いに隣り合う篩い体形成片が前記扱胴の前後方向で隣り合うそれぞれの扱歯の先端部と同時に対向しないように設定するものである。   That is, in claim 1, a threshing unit for a combine, comprising: a handling cylinder disposed rotatably around an axis in the front-rear direction; and a concave disposed below the handling cylinder. The barrel includes a cylindrical barrel portion extending in the front-rear direction, and a plurality of teeth that are attached to the outer peripheral surface of the barrel portion and protrude outward in the barrel diameter direction. The teeth are arranged along the first spiral whose axis coincides with the handle cylinder, and the tooth handling and the tooth treatment adjacent to the tooth treatment in the front-rear direction substantially before or after the first spiral of the first spiral. The front and rear frame bodies are arranged to be shifted from each other in the circumferential direction of the barrel, and the concave is curved in a convex manner along the outer circumferential surface of the trunk portion of the barrel, A frame having left and right frame-forming pieces installed between left and right ends of the frame-forming piece, and in the front-rear direction A plurality of sieving body-forming pieces that extend in the form of rods, and each sieving body-forming piece is laid between the front and rear frame-forming pieces at predetermined intervals in the bending direction, and The front and rear frame-forming pieces are supported rotatably around the axis of the sieve-forming piece, and the spacing between the sieve-forming pieces adjacent to each other in the bending direction of the sieve body in the front view of the handling cylinder is determined as follows. It sets so that the mutually adjacent sieve body formation piece may not oppose simultaneously with the front-end | tip part of each tooth-handling adjacent in the front-back direction of the said handling cylinder.

請求項2においては、前記コンケーブは、前記扱胴の正面視で、前記篩い体の湾曲方向で隣り合う篩い体形成片同士の間隔を、前記扱胴の前後方向で隣り合う扱歯の先端部同士の間隔よりも扱胴周方向で大きく設定するものである。   In Claim 2, the said concave is the front-end | tip part of the tooth-handling which adjoins the space | interval of the sieve body formation pieces adjacent in the curve direction of the said sieve body in the front-back direction of the said handle cylinder in the front view of the said handle cylinder. It is set larger in the circumferential direction of the barrel than the interval between them.

請求項3においては、前記コンケーブは、前記扱胴の正面視で、前記篩い体の湾曲方向で隣り合う篩い体形成片同士の間隔を、前記扱胴の前後方向で隣り合う扱歯の先端部同士の間隔よりも扱胴周方向で小さく設定するものである。   In Claim 3, the said concave is the front-end | tip part of the tooth treatment tooth | gear adjacent in the front-back direction of the said treatment cylinder in the front view of the said treatment cylinder, and the space | interval of the sieve body formation pieces adjacent in the curve direction of the said sieve body. It is set to be smaller in the circumferential direction of the barrel than the interval between them.

請求項4においては、前記扱胴は、前記扱歯を、前記第一螺旋と、この第一螺旋と軸線が一致するとともに、巻き方向が同一であり、この第一螺旋よりも螺旋ピッチが大きい第二螺旋との交点に位置するように配置するとともに、前記扱歯と、この扱歯に対して前記第一螺旋の略一周前または後に前後方向で隣り合う扱歯とを、当該扱胴の正面視で、互いの一部のみが重複するように配置するものである。   According to a fourth aspect of the present invention, the handle cylinder has the tooth handling, the first spiral, the first spiral and the axis coincide with each other, the winding direction is the same, and the spiral pitch is larger than the first spiral. The tooth handling and the tooth handling adjacent to the tooth handling in the front-rear direction substantially before or after the first spiral with respect to the tooth handling, are arranged so as to be positioned at the intersection with the second spiral. It arrange | positions so that only a part of each other may overlap in a front view.

本発明の効果として、以下に示すような効果を奏する。   As effects of the present invention, the following effects can be obtained.

請求項1においては、脱穀作業時に、コンケーブで篩い体のある篩い体形成片がある扱歯の先端部と対向するとき、前後方向で隣り合う篩い体形成片は別の扱歯の先端部と対向しなくなり、これらの互いに隣り合う篩い体形成片が同時に扱歯と脱穀対象物である穀稈を挟まなくなる。そのため、搬送される穀稈の流れに速度差が生じて、穀稈に分離作用が働き、この穀稈に刺さり込んだ穀粒が分離することとなる。したがって、脱穀作業時の穀粒損失を低減させて、脱穀性能の向上を図ることができる。加えて、扱歯が前述のように穀稈に作用するため、扱胴への動力の低減を図ることもできる。   In claim 1, when sieving work, when a sieving body-forming piece having a sieving body with a concave is opposed to a tip part of a tooth-handling tooth, a sieving body-forming piece adjacent in the front-rear direction is separated from the tip part of another tooth-handing tooth. These sieving body-forming pieces that are adjacent to each other do not sandwich the tooth handling and the threshing target that is the threshing object at the same time. Therefore, a speed difference arises in the flow of the corn straw conveyed, a separation effect | action acts on a corn straw, and the grain stabbed in this corn straw will isolate | separate. Therefore, the grain loss at the time of threshing can be reduced and the threshing performance can be improved. In addition, since the tooth handling acts on the cereal as described above, the power to the handling drum can be reduced.

請求項2においては、脱穀作業時に、コンケーブで篩い体のある篩い体形成片がある扱歯の先端部と対向するとき、前後方向で隣り合う篩い体形成片は別の扱歯の先端部と対向しなくなり、これらの互いに隣り合う篩い体形成片が同時に扱歯と脱穀対象物である穀稈を挟まなくなる。そのため、搬送される穀稈の流れに速度差が生じて、穀稈に分離作用が働き、この穀稈に刺さり込んだ穀粒が分離することとなる。したがって、脱穀作業時の穀粒損失を低減させて、脱穀性能の向上を図ることができる。加えて、扱歯が前述のように穀稈に作用するため、扱胴への動力の低減を図ることもできる。   In claim 2, when the sieving operation is opposed to the tip portion of the tooth-treating tooth having a sieve body with a sieve in a threshing operation, the screen-forming piece adjacent in the front-rear direction is separated from the tip portion of another tooth-treating tooth. These sieving body-forming pieces that are adjacent to each other do not sandwich the tooth handling and the threshing target that is the threshing object at the same time. Therefore, a speed difference arises in the flow of the corn straw conveyed, a separation effect | action acts on a corn straw, and the grain stabbed in this corn straw will isolate | separate. Therefore, the grain loss at the time of threshing can be reduced and the threshing performance can be improved. In addition, since the tooth handling acts on the cereal as described above, the power to the handling drum can be reduced.

請求項3においては、脱穀作業時に、コンケーブで篩い体のある篩い体形成片がある扱歯の先端部と対向するとき、前後方向で隣り合う篩い体形成片は別の扱歯の先端部と対向しなくなり、これらの互いに隣り合う篩い体形成片が同時に扱歯と脱穀対象物である穀稈を挟まなくなる。そのため、搬送される穀稈の流れに速度差が生じて、穀稈に分離作用が働き、この穀稈に刺さり込んだ穀粒が分離することとなる。したがって、脱穀作業時の穀粒損失を低減させて、脱穀性能の向上を図ることができる。加えて、扱歯が前述のように穀稈に作用するため、扱胴への動力の低減を図ることもできる。   In claim 3, when the sieving operation is performed in a threshing operation, when the sieving body-forming piece having a sieving body is opposed to the tip part of the tooth-treating tooth, the sieving body-forming piece adjacent in the front-rear direction is separated from the tip part of another tooth-treating tooth. These sieving body-forming pieces that are adjacent to each other do not sandwich the tooth handling and the threshing target that is the threshing object at the same time. Therefore, a speed difference arises in the flow of the corn straw conveyed, a separation effect | action acts on a corn straw, and the grain stabbed in this corn straw will isolate | separate. Therefore, the grain loss at the time of threshing can be reduced and the threshing performance can be improved. In addition, since the tooth handling acts on the cereal as described above, the power to the handling drum can be reduced.

請求項4においては、脱穀作業時に、扱胴で前後方向に一列に配置される各扱歯が、搬送されてくる脱穀対象物である穀稈に対して、前から順番に時間差をおいて作用することとなる。そのため、穀稈が縄状に絡み合うことを抑制して、穀稈に刺さり込んだ穀粒を分離しやすくすることができる。したがって、円滑な脱穀作業が可能となり、脱穀性能の向上を図ることができる。   In claim 4, at the time of threshing work, each tooth arrangement arranged in a line in the front-rear direction on the handle cylinder acts on the cereal husk which is the threshing object to be conveyed with a time difference in order from the front. Will be. For this reason, it is possible to suppress the entanglement of the cereals in a rope shape, and to easily separate the cereals pierced by the cereals. Therefore, a smooth threshing operation is possible, and the threshing performance can be improved.

次に、発明の実施の形態を説明する。   Next, embodiments of the invention will be described.

まず、本発明の一実施形態に係る脱穀部30を備えるコンバイン1の全体構成について説明する。なお、コンバイン1は、脱穀部30に大豆や麦などの穀稈のすべてを投入して脱穀する全稈投入型コンバインである。   First, the whole structure of the combine 1 provided with the threshing part 30 which concerns on one Embodiment of this invention is demonstrated. The combine 1 is an all-pile-type combine that throws all cereal grains such as soybeans and wheat into the threshing unit 30 for threshing.

図1に示すように、コンバイン1には、機体フレーム2に対して、走行部10と、刈取部20と、脱穀部30と、選別部40と、穀粒貯溜部50と、排藁処理部60と、エンジン部70と、操縦部80とが備えられる。   As shown in FIG. 1, the combine 1 has a traveling unit 10, a cutting unit 20, a threshing unit 30, a sorting unit 40, a grain storage unit 50, and a waste processing unit with respect to the body frame 2. 60, the engine part 70, and the control part 80 are provided.

走行部10は、機体フレーム2の下部に設けられる。走行部10は、左右一対のクローラを有するクローラ式走行装置11などを有して、このクローラ式走行装置11により機体を前進または後進方向に走行させることができるように構成される。   The traveling unit 10 is provided in the lower part of the body frame 2. The traveling unit 10 includes a crawler type traveling device 11 having a pair of left and right crawlers, and is configured to be able to travel the body in the forward or backward direction by the crawler type traveling device 11.

刈取部20は、機体フレーム2の前端部に機体に対して昇降可能に設けられる。刈取部20は、分草具21や、掻込リール22や、切断装置23や、搬送装置24などを有して、分草具21により圃場の穀稈を分草し、掻込リール22により分草後の穀稈を掻き込み、切断装置23により掻込後の穀稈の株元を切断し、搬送装置24により切断後の穀稈を左右略中央に横送した後に脱穀部30側へ搬送することができるように構成される。   The cutting unit 20 is provided at the front end of the body frame 2 so as to be movable up and down with respect to the body. The cutting unit 20 includes a weeding tool 21, a take-up reel 22, a cutting device 23, a transporting device 24, and the like. After scraping the cereals after weeding, the cutting device 23 cuts the stock of the culm after squeezing, and the transporting device 24 cross-feeds the cereals after cutting to the center of the left and right, and then to the threshing unit 30 side. It is configured so that it can be transported.

脱穀部30は、機体フレーム2の左側部に設けられ、刈取部20の後方に配置される。脱穀部30は、図2、図3に示すように、扱胴31や、コンケーブ32などを有して、扱胴31およびコンケーブ32により刈取部20から搬送されてくる穀稈を後方へ送りながら脱穀し、その脱穀物を漏下させることができるように構成される。   The threshing unit 30 is provided on the left side of the machine body frame 2 and is arranged behind the reaping unit 20. As shown in FIGS. 2 and 3, the threshing unit 30 includes a handling drum 31 and a concave 32, and sends the cereals conveyed from the cutting unit 20 by the handling barrel 31 and the concave 32 to the rear. It is configured to thresh and allow the threshing to leak.

選別部40は、機体フレーム2の左側部に設けられ、脱穀部30の下方に配置される。選別部40は、図2に示すように、揺動選別装置41や、風選別装置42や、穀粒搬送装置43などを有して、揺動選別装置41により脱穀部30から落下する脱穀物を穀粒や藁屑などに揺動選別し、風選別装置42により揺動選別後のものを更に穀粒と藁屑などとに風選別し、穀粒搬送装置43により選別後の穀粒を穀粒貯溜部50側へ搬送することができるように構成される。   The sorting unit 40 is provided on the left side of the machine body frame 2 and is disposed below the threshing unit 30. As shown in FIG. 2, the sorting unit 40 includes a swing sorting device 41, a wind sorting device 42, a grain transport device 43, and the like, and the threshing falling from the threshing unit 30 by the swing sorting device 41. Swayed into grains and swarf, etc., wind-sorted by the wind sorter 42 and further sorted into cereals and swarf, etc., and grain-sorted by the grain transporter 43 It is comprised so that it can convey to the grain storage part 50 side.

この選別部40において、揺動選別装置41では、第一チャフシーブ411や、第二チャフシーブ412や、篩分部材413などが揺動選別装置本体414に備えられる。揺動選別装置本体414は、扱胴31の下方に配置され、その前部および後部に設けられる揺動機構415によって、第一チャフシーブ411や、第二チャフシーブ412や、篩分部材413などをともなって機体に対して揺動可能に設けられる。   In the sorting unit 40, the swing sorting device 41 includes a first chaff sheave 411, a second chaff sheave 412, a sieving member 413, and the like in the swing sorting device main body 414. The swing sorting device main body 414 is disposed below the handling cylinder 31, and includes a first chaff sheave 411, a second chaff sheave 412, a sieving member 413, and the like by a swing mechanism 415 provided at a front portion and a rear portion thereof. And can be swung with respect to the airframe.

第一チャフシーブ411および第二チャフシーブ412は、左右方向に等間隔ごとに横架された複数のチャフフィンを有してその角度を変更可能に構成され、それぞれ若干前低後高に傾斜した状態で前後に並置される。篩分部材413は、櫛状部材で構成され、第一チャフシーブ411の後端部に歯部を後方へ向けて設けられ、第二チャフシーブ412の前部の上方に位置するように配置される。   The first chaff sheave 411 and the second chaff sheave 412 have a plurality of chaff fins horizontally mounted at equal intervals in the left-right direction, and the angle thereof can be changed. Juxtaposed. The sieving member 413 is composed of a comb-like member, and is provided at the rear end portion of the first chaff sheave 411 with the tooth portion facing rearward, and is disposed above the front portion of the second chaff sheave 412.

そして、揺動選別装置41は、揺動選別装置本体414を揺動させることによって、同時に第一チャフシーブ411や、第二チャフシーブ412や、篩分部材413などを揺動させて、脱穀部30から落下する脱穀物から穀粒を粗選別し、その粗選別後のものを風選別装置42に漏下させることができるようになっている。このときの漏下量は、第一チャフシーブ411および第二チャフシーブ412でそれぞれ複数のチャフフィンの角度が変更されることにより調節される。   The swing sorting device 41 swings the swing sorting device main body 414 to simultaneously swing the first chaff sheave 411, the second chaff sheave 412, the sieving member 413, and the like from the threshing unit 30. The grain is roughly sorted from the falling cereal, and the coarsely sorted grain can be leaked to the wind sorting device 42. The amount of leakage at this time is adjusted by changing the angles of the plurality of chaff fins at the first chaff sheave 411 and the second chaff sheave 412 respectively.

風選別装置42では、唐箕ファン421や、一番コンベア422、二番コンベア423などが風選別装置本体424に備えられる。唐箕ファン421は、左右方向に横架された回転駆動軸を有して回転可能に構成され、風選別装置本体424の前端部に配置される。一番コンベア422および二番コンベア423は、左右方向に横架された回転駆動軸を有して回転可能に構成され、それぞれ唐箕ファン421の後方で風選別装置本体424の底部に前後に並置される。   In the wind sorting device 42, the tang fan 421, the first conveyor 422, the second conveyor 423, and the like are provided in the wind sorting device main body 424. The tang fan 421 has a rotational drive shaft horizontally mounted in the left-right direction, is configured to be rotatable, and is disposed at the front end portion of the wind sorting apparatus main body 424. The first conveyor 422 and the second conveyor 423 are configured to be rotatable with a rotation drive shaft horizontally mounted in the left-right direction, and are respectively juxtaposed on the bottom of the wind sorting apparatus main body 424 at the rear of the Kara fan 421. The

そして、風選別装置42は、唐箕ファン421を回転駆動させることによって、選別風を起して後方へ送り、揺動選別装置41から落下する穀粒や藁屑に当てて、これらを比重選別し、そのうちの比重の重いものが選別風の影響を受けずに一番コンベア422へ落下するのに対して、比重の軽いものを選別風にて後方へ運んで、二番コンベア423へ落下させることができるようになっている。   Then, the wind sorting device 42 drives the rotary fan 421 to rotate, thereby causing the sorting wind to be sent backwards and hitting the grains and sawdust falling from the swing sorting device 41 to sort these by specific gravity. Of these, the one with the higher specific gravity falls to the first conveyor 422 without being affected by the sorting wind, while the one with the lower specific gravity is carried backward by the sorting wind and dropped to the second conveyor 423. Can be done.

風選別装置42は、また、一番コンベア422を駆動させることによって、この一番コンベア422で落下してきたものを一番物として風選別装置42の右側へ送って穀粒搬送装置43へ渡すとともに、二番コンベア423を駆動させることによって、この二番コンベア423で選別風にて運ばれたあとに落下してきたものを二番物として風選別装置42の右側へ送って二番還元装置44へ渡すことができるようになっている。   The wind sorting device 42 also drives the first conveyor 422 to send the thing that has fallen on the first conveyor 422 to the right side of the wind sorting device 42 as the first thing and pass it to the grain conveying device 43. Then, by driving the second conveyor 423, what has fallen after being transported by the second conveyor 423 with the sorting air is sent to the right side of the wind sorting device 42 as the second thing and sent to the second reduction device 44. It can be passed.

二番還元装置44には、二番搬送装置441と、二番処理装置442とが備えられる。二番搬送装置441は、揺動選別装置41および風選別装置42の右側方で前後方向に延設され、前高後低に傾斜した状態で配置される。二番処理装置442は、揺動選別装置41の前端部の上方に位置するように配置され、二番コンベア423と二番搬送装置441を介して接続される。   The second reduction device 44 includes a second transport device 441 and a second processing device 442. The second conveying device 441 extends in the front-rear direction on the right side of the swing sorting device 41 and the wind sorting device 42, and is disposed in a state where the front and rear are inclined to the low. The second processing device 442 is disposed so as to be located above the front end portion of the swing sorting device 41, and is connected to the second conveyor 423 via the second transport device 441.

そして、二番還元装置44は、二番搬送装置441および二番処理装置442を駆動させることによって、二番搬送装置441で二番コンベア423から受けた二番物を二番処理装置442へ送り、二番処理装置442で二番搬送装置441から送られてくる二番物を、枝梗を除去するなどの処理を行ったあと、揺動選別装置41に落下させて戻すことができるようになっている。こうして、選別部40は、揺動選別装置41および風選別装置42を経た二番物を繰り返し選別することができるようになっている。   Then, the second reduction device 44 drives the second transport device 441 and the second processing device 442 to send the second thing received from the second conveyor 423 by the second transport device 441 to the second processing device 442. After the second processing unit 442 performs processing such as removing branch branches from the second transport unit 441, the second processing unit 442 can drop it back on the swing sorter 41 and return it. It has become. In this way, the sorting unit 40 can repeatedly sort the second product that has passed through the swing sorting device 41 and the wind sorting device 42.

穀粒貯溜部50は、機体フレーム2の右側前後中央部に設けられ、脱穀部30および選別部40の右側方に配置される。穀粒貯溜部50は、穀粒タンク51や、穀粒排出装置52などを有して、穀粒タンク51により選別部40から搬送されてくる穀粒を貯溜し、穀粒排出装置52により貯溜中の穀粒を任意の方向に搬送してから外部へ排出することができるように構成される。   The grain storage part 50 is provided in the right front and rear center part of the machine body frame 2, and is arranged on the right side of the threshing part 30 and the sorting part 40. The grain storage unit 50 includes a grain tank 51, a grain discharge device 52, and the like. The grain storage unit 50 stores the grain conveyed from the sorting unit 40 by the grain tank 51, and stores it by the grain discharge device 52. It is comprised so that the inside grain can be discharged | emitted after conveying in an arbitrary direction.

排藁処理部60は、機体フレーム2の左側後上方に設けられ、脱穀部30および選別部40の後方に配置される。排藁処理部60は、排藁排出装置などを有して、この排藁搬送装置により脱穀部30からの脱穀済みの穀稈を排藁として外部へ排出するとともに、選別部40からの藁屑や塵埃などを外部へ排出することができるように構成される。   The waste disposal unit 60 is provided on the left rear upper side of the machine body frame 2 and is disposed behind the threshing unit 30 and the sorting unit 40. The waste disposal unit 60 includes a waste discharge device and the like, and the waste transporter device discharges the threshed cereal from the threshing unit 30 to the outside as waste, and the waste from the sorting unit 40. And dust can be discharged to the outside.

エンジン部70は、機体フレーム2の右側後部に設けられ、穀粒貯溜部50の後方に配置される。エンジン部70は、エンジンなどを有して、このエンジンの動力を各部の装置に適宜の伝動機構を介して供給し、エンジンにより各部の装置を駆動させることができるように構成される。   The engine unit 70 is provided at the right rear portion of the machine body frame 2 and is disposed behind the grain storage unit 50. The engine unit 70 includes an engine and the like, and is configured such that the power of the engine is supplied to each unit device via an appropriate transmission mechanism so that the unit device can be driven by the engine.

操縦部80は、機体フレーム2の右側前部に設けられ、穀粒貯溜部50の前方に配置される。操縦部80は、ステアリングハンドル81および変速レバーを含む各種の操作具や、操縦席や、キャビン82などを有して、操作具により各部の装置などを操作し、操縦席に操縦者を着座させ、キャビン82により操作具や操縦席を覆うことができるように構成される。   The control unit 80 is provided at the front right side of the body frame 2 and is disposed in front of the grain storage unit 50. The control unit 80 has various operation tools including a steering handle 81 and a shift lever, a control seat, a cabin 82, and the like, and operates the devices of each part with the operation tools to seat the driver on the control seat. The cabin 82 is configured to cover the operation tool and the cockpit.

このようにして、コンバイン1は、操縦部80での操作具の操作に応じて、エンジン部70からエンジンの動力を各部の装置に供給して、走行部10で機体を走行させながら、刈取部20で圃場の穀稈を刈り取り、脱穀部30で刈取部20からの穀稈を脱穀し、選別部40で脱穀部30からの脱穀物を選別して、穀粒貯溜部50で選別部40からの穀粒を貯溜することができるように構成される。   In this way, the combine 1 supplies the power of the engine from the engine unit 70 to the devices of the respective parts in accordance with the operation of the operation tool at the control unit 80, while the traveling unit 10 travels the body, The cereals in the field are cut off at 20, the cereals from the reaping unit 20 are threshed at the threshing unit 30, the cereal from the threshing unit 30 is selected by the sorting unit 40, and the sorting unit 40 is sorted by the grain storage unit 50. It is configured to be able to store the kernels.

次に、脱穀部30の構成について説明する。   Next, the configuration of the threshing unit 30 will be described.

図2、図3、図4に示すように、脱穀部30には、前後方向に延びる空間からなる扱室33が形成される。そしてこの扱室33に扱胴31とコンケーブ32とが内装される。扱室33において、扱胴31はその軸線方向を前後方向として、扱室33の前側で前方に開口する穀稈投入口331と、扱室33の後側で後方に開口する穀稈排出口との間にわたって設けられる。   As shown in FIGS. 2, 3, and 4, the threshing unit 30 is formed with a handling chamber 33 including a space extending in the front-rear direction. A handling cylinder 31 and a concave 32 are installed in the handling chamber 33. In the handling chamber 33, the handling cylinder 31 has the axial direction as the front-rear direction, and a cereal input port 331 that opens forward on the front side of the handling chamber 33, and a cereal discharge port that opens rearward on the rear side of the handling chamber 33. Between.

扱胴31は、胴部311と、胴部311に取り付けられるインペラ312や複数の扱歯313などとを有して構成される。胴部311は、扱室33と同程度の前後長をもって円筒状に形成され、扱胴軸線方向に延伸される。ただし、胴部311の前端部だけは、他の部分と異なり面取りされた円筒状に形成される。   The handling drum 31 includes a trunk portion 311, an impeller 312 attached to the trunk portion 311, a plurality of teeth handling teeth 313, and the like. The trunk portion 311 is formed in a cylindrical shape having a longitudinal length similar to that of the handling chamber 33 and extends in the handling barrel axis direction. However, only the front end portion of the body portion 311 is formed in a chamfered cylindrical shape unlike the other portions.

胴部311は、その前端部が扱室33の穀稈投入口331に臨み、後端部が扱室33の穀稈排出口を臨むように配置される。そして、胴部311は扱室33に扱胴軸線方向に架設された支軸34に支持され、この支軸34がエンジンの動力を得て回転駆動される場合に、支軸34を回転中心としてこれと一体的に回転可能とされる。   The trunk portion 311 is arranged such that its front end faces the grain shed inlet 331 of the handling chamber 33 and its rear end faces the grain shed outlet of the handling chamber 33. The trunk portion 311 is supported by a support shaft 34 installed in the handling chamber 33 in the direction of the handle cylinder axis. When the support shaft 34 is rotationally driven by the power of the engine, the support shaft 34 is used as the center of rotation. It can be rotated integrally therewith.

インペラ312は、螺旋状に形成され、胴部311の前端部の外周面に設けられる。一方、複数の扱歯313は、インペラ312の後方で、胴部311の前端部よりも後部側の外周面に胴扱胴径方向外側に突出するように設けられる。以下、前端部よりも後側部分の外周面を、胴部311の外周面として説明する。   The impeller 312 is formed in a spiral shape and is provided on the outer peripheral surface of the front end portion of the body portion 311. On the other hand, the plurality of tooth handling teeth 313 are provided behind the impeller 312 so as to protrude outward in the body handling drum radial direction on the outer peripheral surface on the rear side of the front end portion of the body portion 311. Hereinafter, the outer peripheral surface of the rear part from the front end portion will be described as the outer peripheral surface of the body portion 311.

扱歯313の取付位置は、図2で鎖線により示される、胴部311の外周面に設定された二種類の螺旋、即ち第一螺旋301と第二螺旋302とにより決定される。第一螺旋301と第二螺旋302とは、各々の巻き方向と、胴部311の外周面上において一周分の扱胴軸線方向の長さである螺旋ピッチとを次のようなものとして設定される。   The attachment position of the tooth handling 313 is determined by two types of spirals set on the outer peripheral surface of the body portion 311, that is, a first spiral 301 and a second spiral 302, which are indicated by chain lines in FIG. 2. The first spiral 301 and the second spiral 302 are set as follows with respect to each winding direction and a spiral pitch that is a length in the handling cylinder axis direction for one round on the outer peripheral surface of the trunk portion 311. The

すなわち、第一螺旋301と第二螺旋302とは、いずれも扱胴31の軸線と一致する前後方向に延伸する軸線を有して、互いの巻き方向は同一となり、互いの螺旋ピッチは異なるように設定される。第一螺旋301は、その螺旋ピッチが第二螺旋302の螺旋ピッチよりも小さくなるように設定され、胴部311の外周面を複数回にわたって周回するものとされる。   That is, the first spiral 301 and the second spiral 302 both have an axial line extending in the front-rear direction that coincides with the axial line of the handling cylinder 31, the winding directions are the same, and the helical pitches are different from each other. Set to The first spiral 301 is set so that its spiral pitch is smaller than the spiral pitch of the second spiral 302, and goes around the outer peripheral surface of the body portion 311 a plurality of times.

第二螺旋302は、その螺旋ピッチが第一螺旋301の螺旋ピッチよりも大きくなるとともに、胴部311の前後長に対して非常に大きくなるように設定され、胴部311の外周面を周回することなく、胴部311の後端部に達するものとされる。加えて、第二螺旋302は、複数、本実施形態においては、八つ備えられて、第二螺旋302同士は一定の間隔をとって略平行で交わらず、第一螺旋301とだけ交わるものとされる。   The second spiral 302 is set so that the spiral pitch thereof is larger than the spiral pitch of the first spiral 301 and is very large with respect to the longitudinal length of the trunk portion 311, and goes around the outer peripheral surface of the trunk portion 311. Without reaching the rear end of the body 311. In addition, a plurality of the second spirals 302 are provided in the present embodiment, and the second spirals 302 intersect with each other only with the first spiral 301 and do not intersect with each other at a regular interval. Is done.

こうして、複数の扱歯313が、胴部311の外周面において、第一螺旋301に沿って等間隔ごとに配置されるとともに、第二螺旋302に沿って等間隔ごとに配置される。つまり、扱歯313が第一螺旋301と第二螺旋302との交点に位置するように配置される。この際に第一螺旋301の一周分に配置される扱歯313の数が、第二螺旋302の数とされる。   In this manner, the plurality of tooth handling teeth 313 are arranged at equal intervals along the first spiral 301 and at equal intervals along the second spiral 302 on the outer peripheral surface of the body portion 311. That is, the tooth handling 313 is disposed at the intersection of the first spiral 301 and the second spiral 302. At this time, the number of teeth 313 disposed in one round of the first spiral 301 is the number of second spirals 302.

その結果、複数の扱歯313のうち、第一螺旋301のある周目における所定番に配置される扱歯313と、第一螺旋301の前または次の周目における同一番に配置される扱歯313とは、同一の第二螺旋302上において、扱胴軸線方向となる前後方向で隣り合うように並べられる。同時に、図4、図5に示すように、これらの互いに前後方向で隣り合う扱歯313は、扱胴31の正面視で、扱胴周方向に若干ずれて、即ち扱胴周方向の位相を互いに異ならせて並べられる。   As a result, among the plurality of teeth 313, the teeth 313 arranged at a predetermined number on the circumference of the first spiral 301 and the handling teeth arranged on the same number before the first spiral 301 or on the next circumference. The teeth 313 are arranged on the same second helix 302 so as to be adjacent to each other in the front-rear direction, which is the handle cylinder axis direction. At the same time, as shown in FIGS. 4 and 5, these handle teeth 313 that are adjacent to each other in the front-rear direction are slightly shifted in the handle cylinder circumferential direction in front view of the handle cylinder 31, that is, the phase in the handle cylinder circumferential direction is shifted. They are arranged differently.

つまり、複数の第二螺旋302のうち、同一の第二螺旋302上において、前後方向で隣り合う扱歯313の関係では、第一螺旋301のある周目に配置される扱歯313に対して、第一螺旋301の略一周後に配置される扱歯313が、扱胴31の正面視で、扱胴周方向に一定の間隔のずれをもって扱胴回転方向上手側に並べられる。これにより、これらの互いに前後方向で隣り合う扱歯313は、扱胴31の正面視で、互いの一部のみが重複するように配置される。   That is, among the plurality of second spirals 302, on the same second spiral 302, the relationship between the tooth handling 313 adjacent in the front-rear direction is relative to the tooth handling 313 disposed on the circumference of the first spiral 301. The handle teeth 313 arranged approximately one round after the first spiral 301 are arranged on the upper side in the handle barrel rotation direction with a certain gap in the handle barrel circumferential direction in a front view of the handle barrel 31. Thereby, these tooth handling teeth 313 adjacent to each other in the front-rear direction are arranged so that only a part of each other overlaps in the front view of the handling drum 31.

加えて、これらの互いに前後方向で隣り合う扱歯313は、後方に向かって繰り返し配置され、一つの第二螺旋302に沿って前後方向で扱胴31の軸線と平行とならない直線状に一列をなすように並べられる。この前後方向における扱歯313群の一列は第二螺旋302の数に応じて扱胴周方向に一定の間隔ごとに複数列配される。このようにして、胴部311の外周面において、各扱歯313の取付位置が第一螺旋301と第二螺旋302とにより決定される。   In addition, the teeth 313 adjacent to each other in the front-rear direction are repeatedly arranged rearward, and are arranged in a straight line that is not parallel to the axis of the handle cylinder 31 in the front-rear direction along one second spiral 302. Arranged as if to make. One row of the tooth handling 313 group in the front-rear direction is arranged in a plurality of rows at regular intervals in the treatment barrel circumferential direction according to the number of the second spirals 302. In this way, on the outer peripheral surface of the body portion 311, the attachment position of each tooth handling 313 is determined by the first spiral 301 and the second spiral 302.

なお、前述の前後方向で隣り合う扱歯の先端部同士の間隔を、本実施形態においては、扱歯の取付位置を決定するための第一螺旋の螺旋ピッチと第二螺旋の螺旋ピッチとを一定とすることにより等しくしているが、双方または一方の螺旋ピッチを胴部の前後方向における任意範囲で他の範囲での螺旋ピッチよりも大きく、または小さくすることにより変更することもできる。   In addition, in the present embodiment, the interval between the front end portions of the tooth handling teeth adjacent in the front-rear direction described above is determined by the spiral pitch of the first spiral and the spiral pitch of the second spiral for determining the attachment position of the tooth handling. Although it is made equal by making it constant, it is also possible to change both or one of the helical pitches by making it larger or smaller than the helical pitch in the other range in an arbitrary range in the longitudinal direction of the body portion.

また、第一螺旋の巻き方向で隣り合う扱歯の先端部同士の間隔を、本実施形態においては、等しくしているが、第一螺旋の巻き方向で隣り合う扱歯の間に扱歯を追加で配置することにより短くすることや、第一螺旋の巻き方向に並べられる扱歯の一部を省くことにより長くすることもできる。   In addition, in the present embodiment, the intervals between the tip portions of the tooth handling teeth adjacent in the winding direction of the first spiral are equal to each other, but the tooth handling between the tooth handling teeth adjacent in the winding direction of the first spiral. It can be shortened by additionally arranging it, or can be lengthened by omitting a part of the tooth handling teeth arranged in the winding direction of the first spiral.

また、複数の扱歯を、本実施形態においては、第一螺旋かつ第二螺旋に沿った位置にだけ配置しているが、このような位置に加えて、第一螺旋と第二螺旋の双方または一方から外れた適宜の位置に配置することもできる。   Further, in the present embodiment, the plurality of tooth handling teeth are arranged only at positions along the first spiral and the second spiral. In addition to such positions, both the first spiral and the second spiral are arranged. Or it can also arrange | position in the appropriate position remove | deviated from one side.

図2、図3、図4に示すように、扱室33において、コンケーブ32は、その長手方向を前後方向、即ち扱胴軸線方向として、扱胴31の下方に配置され、扱胴31の下部を覆うように設けられる。コンケーブ32は、扱胴31の正面視で、円弧状に形成され、複数の分割コンケーブ320の集合体から構成される。   As shown in FIGS. 2, 3, and 4, in the handling chamber 33, the concave 32 is disposed below the handling cylinder 31 with the longitudinal direction thereof being the front-rear direction, that is, the handling cylinder axis direction, and the lower part of the handling cylinder 31. It is provided so as to cover. The concave 32 is formed in an arc shape when viewed from the front of the handling cylinder 31, and is composed of an assembly of a plurality of divided concaves 320.

コンケーブ32は、本実施形態においては、扱胴軸線方向および周方向でそれぞれ二分割されるように、四枚の分割コンケーブ320の集合体から構成される。ただし、コンケーブは複数の分割コンケーブの集合体と同様の構造をもつ単体で構成することも、異なる数の分割コンケーブの集合体から構成することも可能である。   In this embodiment, the concave 32 is composed of an assembly of four divided concaves 320 so as to be divided into two in the cylinder axis direction and in the circumferential direction. However, the concave can be constituted by a single unit having the same structure as the aggregate of a plurality of divided concaves, or can be constituted by an aggregate of different numbers of divided concaves.

分割コンケーブ320は、それぞれ同様の構造とされ、枠体321と篩い体322とを有して構成される。分割コンケーブ320は、扱胴軸線方向および周方向に二つずつ並設され、隣り合う分割コンケーブ320と枠体321同士が適宜の端面で接触して円弧をかたちづくるように、扱室33を形成する壁部に対して締結具などを介して取り付けられる。   Each of the divided concaves 320 has the same structure and includes a frame body 321 and a sieve body 322. The divided concaves 320 are arranged in parallel in the handling cylinder axis direction and in the circumferential direction, and the handling chamber 33 is formed so that the adjacent divided concaves 320 and the frame bodies 321 come into contact with each other at appropriate end faces to form an arc. It is attached to the wall via a fastener or the like.

図7、図8に示すように、枠体321には、前後の枠体形成片321F・321Bと、左右の枠体形成片321L・321Rとが備えられる。前後の枠体形成片321F・321Bは、それぞれ胴部311の外周面に沿って下方へ凸状に湾曲する部分円弧状の板状部材とされ、前後方向に所定間隔をとって設けられる。   As shown in FIGS. 7 and 8, the frame body 321 includes front and rear frame body forming pieces 321F and 321B and left and right frame body forming pieces 321L and 321R. The front and rear frame-forming pieces 321F and 321B are partially arcuate plate-like members that curve downwardly along the outer peripheral surface of the body portion 311 and are provided at predetermined intervals in the front-rear direction.

左右の枠体形成片321L・321Rは、それぞれ前後方向に延伸する直線状の板状部材とされ、前後の枠体形成片321F・321Bの互いの左右端部間に架設される。こうして、枠体321は前後の枠体形成片321F・321Bと左右の枠体形成片321L・321Rとで枠状に構成される。   The left and right frame forming pieces 321L and 321R are linear plate members extending in the front-rear direction, respectively, and are installed between the left and right end portions of the front and rear frame forming pieces 321F and 321B. Thus, the frame body 321 is configured in a frame shape by the front and rear frame body forming pieces 321F and 321B and the left and right frame body forming pieces 321L and 321R.

篩い体322には、複数の篩い体形成片322Aが備えられる。篩い体形成片322Aは前後方向に延伸する直線状の棒状部材、本実施形態においては、棒状部材のなかでも特に外周面を曲面とする円筒状部材とされる。複数の篩い体形成片322Aは、それぞれ左右の枠体形成片321L・321Rと平行に配置され、前後の枠体形成片321F・321Bの間にその湾曲方向に所定間隔ごとに架設される。   The sieve body 322 is provided with a plurality of sieve body forming pieces 322A. The sieving body forming piece 322A is a linear rod-shaped member extending in the front-rear direction, and in this embodiment, is a cylindrical member having a curved outer peripheral surface among the rod-shaped members. The plurality of sieve body forming pieces 322A are arranged in parallel to the left and right frame body forming pieces 321L and 321R, respectively, and are installed between the front and rear frame body forming pieces 321F and 321B at predetermined intervals in the bending direction.

ここで、篩い体形成片322Aは、図9に示すように、その内径が前後にわたって一定に、外径が前後の端部322Aaに限って小径になるように設定され、前後の端部付近が断面視凸状となるように構成される。一方、前後の枠体形成片321F・321Bは、篩い体形成片322Aの前後の端部322Aaと略同一の径をもった複数の貫通孔321Fa・321Baを湾曲方向に所定間隔ごと備えて構成される。   Here, as shown in FIG. 9, the sieving body forming piece 322A is set such that its inner diameter is constant over the front and rear, and the outer diameter is limited to the front and rear ends 322Aa, and the vicinity of the front and rear ends is It is comprised so that it may become convex in cross section. On the other hand, the front and rear frame-forming pieces 321F and 321B are configured with a plurality of through holes 321Fa and 321Ba having substantially the same diameter as the front and rear ends 322Aa of the sieve body-forming pieces 322A at predetermined intervals in the bending direction. The

そして、篩い体形成片322Aの前後の端部322Aaがそれぞれ前後の枠体形成片321F・321Bの対応する貫通孔321Fa・321Baに嵌入される。これにより、篩い体形成片322Aが前後の枠体形成片321F・321Bの間にわたって設けられ、前後の枠体形成片321F・321Bに抜止されつつ、当該篩い体形成片322Aの軸線周りに回転自在に支持される。以下、篩い体形成片322Aの端部322Aaを除く扱胴31と対向する部分の外周面を、篩い体形成片322Aの外周面として説明する。   Then, the front and rear end portions 322Aa of the sieve body forming piece 322A are fitted into the corresponding through holes 321Fa and 321Ba of the front and rear frame body forming pieces 321F and 321B, respectively. Accordingly, the sieve body forming piece 322A is provided between the front and rear frame body forming pieces 321F and 321B, and is freely rotated around the axis of the sieve body forming piece 322A while being retained by the front and rear frame body forming pieces 321F and 321B. Supported by Hereinafter, the outer peripheral surface of the portion facing the handling cylinder 31 excluding the end portion 322Aa of the sieve body forming piece 322A will be described as the outer peripheral surface of the sieve body forming piece 322A.

このような篩い体形成片322Aの支持構造において、篩い体形成片322Aは、図9に示すように、その扱胴31と対向する部分の外径が前後の端部322Aaの外径に比べて適宜に大きく設定されて、図5に示すように、扱胴側外周面から扱胴31の外周面までの距離が前後の枠体形成片321F・321Bの扱胴側端面から扱胴31の外周面までの距離と等しくなるように配置される。つまり、篩い体形成片322Aはその扱胴側外周面が前後の枠体形成片321F・321Bの扱胴側端面と略同一面に位置するように配置される。   In such a support structure for the sieve body forming piece 322A, as shown in FIG. 9, the sieve body forming piece 322A has an outer diameter of the portion facing the handling cylinder 31 as compared with the outer diameter of the front and rear end portions 322Aa. As shown in FIG. 5, the distance from the barrel side outer circumferential surface to the outer circumferential surface of the barrel 31 is set so that the distance between the front and rear end surfaces of the frame forming pieces 321F and 321B and the outer circumference of the barrel 31 is set appropriately. Arranged to be equal to the distance to the surface. That is, the sieve body-forming piece 322A is arranged such that the handling cylinder side outer peripheral surface thereof is positioned on the same surface as the handling cylinder side end faces of the front and rear frame body forming pieces 321F and 321B.

または、篩い体形成片322Aは、その扱胴31と対向する部分の外径が前後の端部322Aaの外径に比べて適宜に大きく設定されて、扱胴側外周面から扱胴31の外周面までの距離が前後の枠体形成片321F・321Bの扱胴側端面から扱胴31の外周面までの距離よりも短くなるように配置される。つまり、篩い体形成片322Aは扱胴側外周面が前後の枠体形成片321F・321Bの扱胴側端面よりも扱胴31に近接するように配置される。   Alternatively, the sieve body-forming piece 322A has an outer diameter of a portion facing the handling cylinder 31 appropriately set larger than an outer diameter of the front and rear end portions 322Aa, and the outer circumference of the handling cylinder 31 from the handling cylinder side outer circumferential surface. It arrange | positions so that the distance to a surface may become shorter than the distance from the treatment cylinder side end surface of the front and rear frame body formation pieces 321F and 321B to the outer peripheral surface of the treatment cylinder 31. That is, the sieve body forming piece 322A is arranged so that the outer surface of the handling cylinder side is closer to the handling cylinder 31 than the end surfaces of the front and rear frame body forming pieces 321F and 321B.

言い換えれば、篩い体形成片322Aは、その扱胴31と対向する部分の外径が前後の端部322Aaの外径に比べて適宜に大きく設定されて、図5に示すように、扱胴側外周面が前後の枠体形成片321F・321Bの扱胴側端面から扱胴31側へぎりぎり突出しないように、または前後の枠体形成片321F・321Bの扱胴側端面よりも扱胴31側へ突出するように配置される。   In other words, the sieving body forming piece 322A has an outer diameter of a portion facing the handling cylinder 31 appropriately set larger than an outer diameter of the front and rear end portions 322Aa, and as shown in FIG. The outer peripheral surface of the front and rear frame forming pieces 321F and 321B does not protrude from the end of the front side of the handling cylinder 31 to the side of the handling cylinder 31 or the side of the front and rear frame forming pieces 321F and 321B. It is arranged to protrude to

また、前述のような篩い体形成片322Aの支持構造において、複数の篩い体形成片322Aは、扱胴31の正面視で、ある篩い体形成片322Aと、この篩い体形成片322Aに対して前後の枠体形成片321F・321Bの湾曲方向で隣り合う篩い体形成片322Aとの間隔が、扱胴31のある扱歯313の先端部と、この扱歯313に対して前後方向で隣り合う扱歯313の先端部との間隔と、扱胴周方向で異なるように並べられる。   Further, in the support structure of the sieve body forming piece 322A as described above, the plurality of sieve body forming pieces 322A are compared to a certain sieve body forming piece 322A and the sieve body forming piece 322A in a front view of the handling cylinder 31. The distance between the front and rear framing body forming pieces 321F and 321B and the adjacent sieving body forming piece 322A is adjacent to the front end of the tooth handling 313 with the handle 31 and the tooth handling 313 in the front and rear direction. It arranges so that the space | interval with the front-end | tip part of the tooth-treating tooth | gear 313 may differ in the treatment-body circumferential direction.

すなわち、複数の篩い体形成片322Aは、扱胴31の正面視で、図5に示すように、ある篩い体形成片322Aと、この篩い体形成片322Aに対して前後の枠体形成片321F・321Bの湾曲方向で隣り合う篩い体形成片322Aとの間隔が、扱胴31のある扱歯313の先端部と、この扱歯313に対して前後方向で隣り合う扱歯313の先端部との間隔よりも扱胴周方向で大きくなるように並べられる。   That is, as shown in FIG. 5, the plurality of sieve body-forming pieces 322 </ b> A are, as shown in FIG. 5, a front sieve body forming piece 322 </ b> A and the front and rear frame body-forming pieces 321 </ b> F with respect to this sieve body-forming piece 322 </ b> A. The interval between the sieve body forming pieces 322 </ b> A adjacent in the curved direction of 321 </ b> B is the tip of the tooth handling 313 with the handle 31, and the tip of the tooth handling 313 adjacent to the tooth handling 313 in the front-rear direction. They are arranged so as to be larger in the circumferential direction of the barrel than the interval of.

または、複数の篩い体形成片322Aは、扱胴31の正面視で、図6に示すように、ある篩い体形成片322Aと、この篩い体形成片322Aに対して前後の枠体形成片321F・321Bの湾曲方向で隣り合う篩い体形成片322Aとの間隔が、扱胴31のある扱歯313の先端部と、この扱歯313に対して前後方向で隣り合う扱歯313の先端部との間隔よりも扱胴周方向で小さくなるように並べられる。   Alternatively, as shown in FIG. 6, the plurality of sieve body forming pieces 322 </ b> A are as shown in FIG. 6 in a front view of the handling cylinder 31, and the front and rear frame body forming pieces 321 </ b> F with respect to this sieve body forming piece 322 </ b> A. The interval between the sieve body forming pieces 322 </ b> A adjacent in the curved direction of 321 </ b> B is the tip of the tooth handling 313 with the handle 31, and the tip of the tooth handling 313 adjacent to the tooth handling 313 in the front-rear direction. They are arranged so as to be smaller in the circumferential direction of the barrel than the interval of.

そのため、ある篩い体形成片322Aが、ある扱歯313とともに、扱胴31の回転中心から扱胴径方向外側へ延伸される第一直線L1上に配置されるとき、ある篩い体形成片322Aに対して前後の枠体形成片321F・321Bの湾曲方向で隣り合う篩い体形成片322Aは、扱胴31の回転中心から第一直線L1に対して扱胴周方向に所定角度ずれて扱胴径方向外側へ延伸される第二直線L2または第三直線L3上に配置されるが、ある扱歯313に対して前後方向で隣り合う扱歯313と同一直線上に配置されないこととなる。   Therefore, when a certain sieve body forming piece 322A is arranged on the first straight line L1 extending from the rotation center of the handling cylinder 31 to the outside in the handling cylinder radial direction together with a certain handle 313, with respect to a certain sieve body forming piece 322A The sieving body forming pieces 322A adjacent to each other in the curving direction of the front and rear frame forming pieces 321F and 321B are shifted from the rotation center of the handling cylinder 31 by a predetermined angle in the handling cylinder circumferential direction with respect to the first straight line L1. Is disposed on the second straight line L2 or the third straight line L3 that is extended to the right, but is not disposed on the same straight line as the tooth handling 313 adjacent in the front-rear direction with respect to a certain tooth handling 313.

つまり、ある篩い体形成片322Aが、扱胴31のある扱歯313の先端部と対向するように配置されるとき、ある篩い体形成片322Aに対して前後の枠体形成片321F・321Bの湾曲方向で隣り合う篩い体形成片322Aは、ある扱歯313に対して前後方向で隣り合う扱歯313の先端部と対向しないように配置されることとなる。言い換えれば、互いに隣り合う篩い体形成片322Aは、扱胴31の前後方向で隣り合うそれぞれの扱歯313と同時に対向しないように配置されることとなる。   That is, when a certain sieve body forming piece 322A is arranged so as to face the tip of the tooth handling 313 with the handling cylinder 31, the front and rear frame body forming pieces 321F and 321B of the certain sieve body forming piece 322A are arranged. The sieving body forming pieces 322A adjacent in the bending direction are arranged so as not to face the distal end portion of the tooth handling 313 adjacent in the front-rear direction with respect to a certain tooth handling 313. In other words, the sieving body forming pieces 322A adjacent to each other are arranged so as not to face each other at the same time as the adjacent tooth handling teeth 313 in the front-rear direction of the handling cylinder 31.

なお、複数の篩い体形成片を、本実施形態においては、篩い体形成片同士の間隔が扱歯の先端部同士の間隔に対して一律に大きく、または小さくなって扱歯周方向で等間隔となるように並べているが、篩い体形成片同士の間隔が一部の篩い体形成片同士の間隔では大きく、残りの篩い体形成片同士の間隔では小さくなるように不等間隔に並べることも可能である。   In addition, in the present embodiment, the plurality of sieve body-forming pieces are equally spaced in the circumferential direction of the tooth-handling with the interval between the sieve-body-forming pieces being uniformly larger or smaller than the distance between the tip portions of the tooth-handling. However, it is also possible to arrange them at unequal intervals so that the intervals between the sieve-forming pieces are large at the intervals between some of the sieve-forming pieces and are small at the intervals between the remaining sieve-forming pieces. Is possible.

また、このような扱胴31およびコンケーブ32を設ける扱室33には、図2、図3、図4に示すように、複数の切刃35と、複数の送塵弁36とが設けられる。複数の切刃35は、扱胴31を構成する胴部311の上部の左側方に設けられ、胴部311の前端部から前後中央部に対する範囲にわたって扱胴軸線方向に所定間隔をとって並置される。この複数の切刃35が配置される前後方向での範囲は、具体的には、胴部311の外周面で最前位置に配置される扱歯313の近傍から選別部40における揺動選別装置41の第一チャフシーブ411の後端部近傍とされる。   Further, in the handling chamber 33 in which such a handling cylinder 31 and the concave 32 are provided, as shown in FIGS. 2, 3, and 4, a plurality of cutting blades 35 and a plurality of dust feeding valves 36 are provided. The plurality of cutting blades 35 are provided on the left side of the upper portion of the barrel portion 311 constituting the barrel 31, and are juxtaposed at a predetermined interval in the barrel axis direction over a range from the front end portion of the barrel portion 311 to the front and rear central portions. The The range in the front-rear direction in which the plurality of cutting blades 35 are arranged is specifically the swing sorting device 41 in the sorting unit 40 from the vicinity of the tooth handling 313 arranged at the foremost position on the outer peripheral surface of the body portion 311. The first chaff sheave 411 is near the rear end.

各々の切刃35は、扱胴31の正面視で、扱歯313と重複可能なように胴部311に向かって延出されて、扱胴31の回転により扱歯313が周回する経路の間に配置され、扱胴31およびコンケーブ32による脱穀が行われる際に、穀稈を切断して短くすることができるようになっている。こうして、脱穀部30での穀稈に対する脱穀性能の向上が図られ、選別部40での脱穀物に対する第一チャフシーブ411の選別性能の向上が図られる。   Each cutting edge 35 is extended toward the trunk portion 311 so as to be able to overlap with the tooth handling 313 in a front view of the handling barrel 31, and between the paths along which the tooth handling 313 circulates by the rotation of the handling barrel 31. When the threshing is performed by the handling cylinder 31 and the concave 32, the culm can be cut and shortened. Thus, the threshing performance of the threshing unit 30 with respect to the cereal is improved, and the selection performance of the first chaff sheave 411 with respect to the threshing of the selection unit 40 is improved.

一方、複数の送塵弁36は、扱胴31の胴部311の上方に左右方向に延出するように設けられ、胴部311の前端部から後部に対する範囲にわたって扱胴軸線方向に所定間隔をとって並置される。各送塵弁36は扱室33の天井面に回転可能に支持されて、その扱胴軸線方向に対する向きを変更可能とされるとともに、一端部で棒状部材37に連結されて他の送塵弁36と連動して回動可能とされる。   On the other hand, the plurality of dust feeding valves 36 are provided so as to extend in the left-right direction above the trunk portion 311 of the barrel 31, and have a predetermined interval in the barrel axis direction over a range from the front end portion of the barrel portion 311 to the rear portion. And juxtaposed. Each dust feed valve 36 is rotatably supported on the ceiling surface of the handling chamber 33 so that its direction with respect to the axis direction of the handling cylinder can be changed, and is connected to a rod-shaped member 37 at one end to be another dust feed valve. It can be rotated in conjunction with 36.

そして、複数の送塵弁36のうち、最前位置に配置される送塵弁36に、扱室33の外部に設けられた操作レバー38が接続されて、この操作レバー38の操作により複数の送塵弁36がその向きを一斉に変更されるようになっている。送塵弁36の向きは、操作レバー38がその近傍に設けられたレバーガイド39で所望の操作位置に固定されることによって、適切な向きに保持される。こうして、扱室33で穀稈の条件に応じてその滞留時間を調整することが可能とされ、脱穀部30での穀稈に対する脱穀性能の向上が図られる。   An operation lever 38 provided outside the handling chamber 33 is connected to the dust delivery valve 36 disposed at the foremost position among the plurality of dust delivery valves 36. The direction of the dust valve 36 is changed all at once. The direction of the dust feed valve 36 is maintained in an appropriate direction by fixing the operation lever 38 to a desired operation position by a lever guide 39 provided in the vicinity thereof. Thus, the residence time can be adjusted in the handling chamber 33 according to the condition of the cereal, and the threshing performance for the cereal in the threshing unit 30 can be improved.

以上のように、コンバイン1の脱穀部30は、前後方向の軸線回りに回転可能に配設される扱胴31と、扱胴31の下方に配設されるコンケーブ32とを備えるものであって、扱胴31は、前後方向に延伸される円筒形状の胴部311と、胴部311の外周面に取付けられ、扱胴径方向外側に突出される複数の扱歯313とを備えて、扱歯313を、当該扱胴31と軸線が一致する第一螺旋301に沿って配置するとともに、扱歯313と、この扱歯313に対して第一螺旋301の略一周前または後に前後方向で隣り合う扱歯313とを、当該扱胴31の正面視で、扱胴周方向に互いにずらして配置し、コンケーブ32は、扱胴31の胴部311の外周面に沿って下方へ凸状に湾曲させた前後の枠体形成片321F・321Bと、この前後の枠体形成片321F・321Bの左右の各端部間に架設する左右の枠体形成片321L・321Rとを有する枠体321と、扱胴軸線方向である前後方向に延伸する棒状の複数の篩い体形成片322Aを有する篩い体322とを備えて、各篩い体形成片322Aを、前後の枠体形成片321F・321Bの間に湾曲方向に所定間隔ごとに架設するとともに、これらの前後の枠体形成片321F・321Bに当該篩い体形成片322Aの軸線回りに回転自在に支持し、扱胴31の正面視で、篩い体322の湾曲方向で隣り合う篩い体形成片322A同士の間隔を、これらの互いに隣り合う篩い体形成片322Aが扱胴31の前後方向で隣り合うそれぞれの扱歯313の先端部と同時に対向しないように設定する構成とされる。   As described above, the threshing portion 30 of the combine 1 includes the handling cylinder 31 that is rotatably arranged around the longitudinal axis, and the concave 32 that is arranged below the handling cylinder 31. The barrel 31 includes a cylindrical barrel 311 extending in the front-rear direction and a plurality of teeth 313 attached to the outer peripheral surface of the barrel 311 and protruding outward in the barrel radial direction. The teeth 313 are arranged along the first spiral 301 whose axis coincides with the handle drum 31, and the teeth 313 are adjacent to the teeth 313 in the front-rear direction substantially before or after the first spiral 301. The matching teeth 313 are arranged so as to be shifted from each other in the circumferential direction of the barrel when viewed from the front of the barrel 31, and the concave 32 is convexly curved downward along the outer circumferential surface of the trunk portion 311 of the barrel 31. The front and rear frame forming pieces 321F and 321B and the front and rear A frame body 321 having left and right frame body forming pieces 321L and 321R installed between the left and right ends of the frame body forming pieces 321F and 321B, and a plurality of bar-shaped sieves extending in the front-rear direction which is the direction of the cylinder axis Each sieving body forming piece 322A is installed between the front and rear frame forming pieces 321F and 321B at a predetermined interval in the bending direction, and the front and rear frames are provided. The body forming pieces 321F and 321B are rotatably supported around the axis of the sieve body forming piece 322A, and the spacing between the sieve body forming pieces 322A adjacent to each other in the bending direction of the sieve body 322 in the front view of the handling cylinder 31 is These adjacent sieve body forming pieces 322 </ b> A are configured so as not to face each other at the same time as the front end portions of the respective tooth-treating teeth 313 adjacent in the front-rear direction of the treatment barrel 31.

これにより、脱穀作業時に、コンケーブ32で篩い体322のある篩い体形成片322Aが扱歯313と対向するとき、前後方向で隣り合う篩い体形成片322Aは別の扱歯313の先端部と対向しなくなり、これらの互いに隣り合う篩い体形成片322Aが同時に扱歯313と脱穀対象物である穀稈を挟まなくなる。そのため、搬送される穀稈の流れに速度差が生じて、穀稈に分離作用が働き、この穀稈に刺さり込んだ穀粒が分離することとなる。したがって、脱穀作業時の穀粒損失を低減させて、脱穀性能の向上を図ることができる。加えて、扱歯313が前述のように穀稈に作用するため、扱胴31への動力の低減を図ることもできる。   Accordingly, when the sieve body forming piece 322A having the sieve body 322 is opposed to the tooth handling 313 in the concave 32 during the threshing operation, the sieve body forming piece 322A adjacent in the front-rear direction is opposed to the tip portion of another tooth handling 313. These sieving body-forming pieces 322A that are adjacent to each other no longer sandwich the tooth handle 313 and the cereal cake that is the threshing object. Therefore, a speed difference arises in the flow of the corn straw conveyed, a separation effect | action acts on a corn straw, and the grain stabbed in this corn straw will isolate | separate. Therefore, the grain loss at the time of threshing can be reduced and the threshing performance can be improved. In addition, since the tooth handling 313 acts on the cereal as described above, the power to the barrel 31 can be reduced.

コンバイン1の脱穀部30は、また、コンケーブ32は、扱胴31の正面視で、篩い体322の湾曲方向で隣り合う篩い体形成片322A同士の間隔を、扱胴31の前後方向で隣り合う扱歯313の先端部同士の間隔よりも扱胴周方向で大きく設定する構成とされる。   The threshing portion 30 of the combine 1 and the concave 32 are adjacent to each other in the front-rear direction of the handling cylinder 31 in the front-to-rear direction of the handling cylinder 31 when the handling cylinder 31 is viewed from the front. It is set as the structure set larger than the space | interval of the front-end | tip parts of the tooth-treating teeth 313 in the treatment drum circumferential direction.

これにより、脱穀作業時に、コンケーブ32で篩い体322のある篩い体形成片322Aが扱歯313と対向するとき、前後方向で隣り合う篩い体形成片322Aは別の扱歯313の先端部と対向しなくなり、これらの互いに隣り合う篩い体形成片322Aが同時に扱歯313と脱穀対象物である穀稈を挟まなくなる。そのため、搬送される穀稈の流れに速度差が生じて、穀稈に分離作用が働き、この穀稈に刺さり込んだ穀粒が分離することとなる。したがって、脱穀作業時の穀粒損失を低減させて、脱穀性能の向上を図ることができる。加えて、扱歯313が前述のように穀稈に作用するため、扱胴31への動力の低減を図ることもできる。   Accordingly, when the sieve body forming piece 322A having the sieve body 322 is opposed to the tooth handling 313 in the concave 32 during the threshing operation, the sieve body forming piece 322A adjacent in the front-rear direction is opposed to the tip portion of another tooth handling 313. These sieving body-forming pieces 322A that are adjacent to each other no longer sandwich the tooth handle 313 and the cereal cake that is the threshing object. Therefore, a speed difference arises in the flow of the corn straw conveyed, a separation effect | action acts on a corn straw, and the grain stabbed in this corn straw will isolate | separate. Therefore, the grain loss at the time of threshing can be reduced and the threshing performance can be improved. In addition, since the tooth handling 313 acts on the cereal as described above, the power to the barrel 31 can be reduced.

コンバイン1の脱穀部30は、また、コンケーブ32は、扱胴31の正面視で、篩い体322の湾曲方向で隣り合う篩い体形成片322A同士の間隔を、扱胴31の前後方向で隣り合う扱歯313の先端部同士の間隔よりも扱胴周方向で小さく設定する構成ともされる。   The threshing portion 30 of the combine 1 and the concave 32 are adjacent to each other in the front-rear direction of the handling cylinder 31 in the front-to-rear direction of the handling cylinder 31 when the handling cylinder 31 is viewed from the front. It is also set as the structure set smaller than the space | interval of the front-end | tip parts of the tooth-treating teeth 313 in the treatment drum circumferential direction.

これにより、脱穀作業時に、コンケーブ32で篩い体322のある篩い体形成片322Aが扱歯313と対向するとき、前後方向で隣り合う篩い体形成片322Aは別の扱歯313の先端部と対向しなくなり、これらの互いに隣り合う篩い体形成片322Aが同時に扱歯313と脱穀対象物である穀稈を挟まなくなる。そのため、搬送される穀稈の流れに速度差が生じて、穀稈に分離作用が働き、この穀稈に刺さり込んだ穀粒が分離することとなる。したがって、脱穀作業時の穀粒損失を低減させて、脱穀性能の向上を図ることができる。加えて、扱歯313が前述のように穀稈に作用するため、扱胴31への動力の低減を図ることもできる。   Accordingly, when the sieve body forming piece 322A having the sieve body 322 is opposed to the tooth handling 313 in the concave 32 during the threshing operation, the sieve body forming piece 322A adjacent in the front-rear direction is opposed to the tip portion of another tooth handling 313. These sieving body-forming pieces 322A that are adjacent to each other no longer sandwich the tooth handle 313 and the cereal cake that is the threshing object. Therefore, a speed difference arises in the flow of the corn straw conveyed, a separation effect | action acts on a corn straw, and the grain stabbed in this corn straw will isolate | separate. Therefore, the grain loss at the time of threshing can be reduced and the threshing performance can be improved. In addition, since the tooth handling 313 acts on the cereal as described above, the power to the barrel 31 can be reduced.

コンバイン1の脱穀部30は、また、扱胴31は、扱歯313を、第一螺旋301と、この第一螺旋301と軸線が一致するとともに、巻き方向が同一であり、この第一螺旋301よりも螺旋ピッチが大きい第二螺旋302との交点に位置するように配置するとともに、扱歯313と、この扱歯に対して第一螺旋301の略一周前または後に前後方向で隣り合う扱歯313とを、当該扱胴31の正面視で、互いの一部のみが重複するように配置する構成とされる。   In the threshing unit 30 of the combine 1, the handling cylinder 31 has the tooth handling 313, the first spiral 301, the axis coincides with the first spiral 301, and the winding direction is the same. The tooth handling 313 and the tooth handling adjacent to the tooth handling 313 in the front-rear direction substantially before or after the first spiral 301 with respect to the tooth handling. 313 are arranged so that only a part of each other overlaps in front view of the handling cylinder 31.

これにより、脱穀作業時に、扱胴31で一つの第二螺旋302に沿って前後方向に一列に配置される各扱歯313が、搬送されてくる脱穀対象物である穀稈に対して、前から順番に時間差をおいて作用することとなる。そのため、穀稈が縄状に絡み合うことを抑制して、穀稈に刺さり込んだ穀粒を分離しやすくすることができる。したがって、円滑な脱穀作業が可能となり、脱穀性能の向上を図ることができる。   As a result, during the threshing operation, the tooth handling 313 arranged in a line in the front-rear direction along the second spiral 302 in the handling drum 31 is moved forward with respect to the cereal basket that is the threshing object to be conveyed. It works with a time difference in order. For this reason, it is possible to suppress the entanglement of the cereals in a rope shape, and to easily separate the cereals pierced by the cereals. Therefore, a smooth threshing operation is possible, and the threshing performance can be improved.

本発明の一実施形態に係る脱穀部を備えるコンバインの構成を示す側面図。The side view which shows the structure of a combine provided with the threshing part which concerns on one Embodiment of this invention. 脱穀部の構成を示す側面図。The side view which shows the structure of a threshing part. 脱穀部の構成を示す平面図。The top view which shows the structure of a threshing part. 脱穀部の構成を示す正面図。The front view which shows the structure of a threshing part. 篩い体形成片同士の間隔が扱歯同士の間隔よりも大きい場合における扱胴とコンケーブとの間の一部構成を示す拡大図。The enlarged view which shows the partial structure between a handling cylinder and a concave in case the space | interval of sieve body formation pieces is larger than the space | interval of tooth handling. 篩い体形成片同士の間隔が扱歯同士の間隔よりも小さい場合における扱胴とコンケーブとの間の一部構成を示す拡大図。The enlarged view which shows the partial structure between a handling cylinder and a concave in case the space | interval of sieve body formation pieces is smaller than the space | interval of tooth handling. コンケーブの構成を示す斜視図。The perspective view which shows the structure of a concave. コンケーブの構成を示す側面図。The side view which shows the structure of a concave. 篩い体形成片の支持部分の構成を示す断面図。Sectional drawing which shows the structure of the support part of a sieve body formation piece.

符号の説明Explanation of symbols

1 コンバイン
30 脱穀部
31 扱胴
32 コンケーブ
301 第一螺旋
302 第二螺旋
311 胴部
313 扱歯
321 枠体
321F 前枠体形成片
321B 後枠体形成片
321L 左枠体形成片
321R 右枠体形成片
322 篩い体
322A 篩い体形成片
DESCRIPTION OF SYMBOLS 1 Combine 30 Threshing part 31 Handle cylinder 32 Concave 301 1st spiral 302 Second spiral 311 trunk part 313 Teeth handle 321 Frame body 321F Front frame body formation piece 321B Rear frame body formation piece 321L Left frame body formation piece 321R Right frame body formation Piece 322 sieve body 322A sieve body forming piece

Claims (4)

前後方向の軸線回りに回転可能に配設される扱胴と、
前記扱胴の下方に配設されるコンケーブとを備える、コンバインの脱穀部であって、
前記扱胴は、
前後方向に延伸される円筒形状の胴部と、
前記胴部の外周面に取付けられ、扱胴径方向外側に突出される複数の扱歯とを備えて、
前記扱歯を、当該扱胴と軸線が一致する第一螺旋に沿って配置するとともに、
前記扱歯と、この扱歯に対して前記第一螺旋の略一周前または後に前後方向で隣り合う扱歯とを、当該扱胴の正面視で、扱胴周方向に互いにずらして配置し、
コンケーブは、
前記扱胴の胴部の外周面に沿って下方へ凸状に湾曲させた前後の枠体形成片と、この前後の枠体形成片の左右の各端部間に架設する左右の枠体形成片とを有する枠体と、
前後方向に延伸する棒状の複数の篩い体形成片を有する篩い体とを備えて、
前記各篩い体形成片を、前記前後の枠体形成片の間に湾曲方向に所定間隔ごとに架設するとともに、これらの前後の枠体形成片に当該篩い体形成片の軸線回りに回転自在に支持し、
前記扱胴の正面視で、前記篩い体の湾曲方向で隣り合う篩い体形成片同士の間隔を、これらの互いに隣り合う篩い体形成片が前記扱胴の前後方向で隣り合うそれぞれの扱歯の先端部と同時に対向しないように設定する、コンバインの脱穀部。
A handling cylinder arranged to be rotatable around an axis in the front-rear direction;
A threshing unit for a combine, comprising a concave disposed below the barrel,
The handling cylinder is
A cylindrical body extending in the front-rear direction;
A plurality of teeth that are attached to the outer peripheral surface of the body and project outward in the diameter direction of the body;
While arranging the tooth treatment along a first spiral whose axis coincides with the treatment drum,
The tooth treatment and the tooth treatment adjacent to the tooth treatment in the front-rear direction substantially before or after the first spiral with respect to the tooth treatment are arranged so as to be shifted from each other in the treatment drum circumferential direction in a front view of the treatment drum,
The concave is
Front and rear frame forming pieces that are curved downward and convexly along the outer peripheral surface of the barrel of the handling cylinder, and left and right frame forming between the left and right ends of the front and rear frame forming pieces A frame having a piece;
Including a sieve body having a plurality of rod-like sieve body-forming pieces extending in the front-rear direction,
The sieve body-forming pieces are installed between the front and rear frame body-forming pieces at a predetermined interval in a bending direction, and can be freely rotated around the axis of the sieve body-forming pieces on the front and rear frame body-forming pieces. Support,
In the front view of the handle cylinder, the interval between the sieve body forming pieces adjacent in the curving direction of the sieve body is set so that the adjacent sieve body forming pieces are adjacent to each other in the front-rear direction of the handle cylinder. A combine threshing unit that is set not to face the tip at the same time.
前記コンケーブは、前記扱胴の正面視で、前記篩い体の湾曲方向で隣り合う篩い体形成片同士の間隔を、前記扱胴の前後方向で隣り合う扱歯の先端部同士の間隔よりも扱胴周方向で大きく設定する、請求項1に記載のコンバインの脱穀部。   In the front view of the handle cylinder, the concave handles the intervals between the sieve body forming pieces adjacent in the curving direction of the sieve body, rather than the intervals between the front end portions of the handle teeth adjacent in the front-rear direction of the handle cylinder. The combine threshing portion according to claim 1, wherein the threshing portion is set to be large in a waist circumference direction. 前記コンケーブは、前記扱胴の正面視で、前記篩い体の湾曲方向で隣り合う篩い体形成片同士の間隔を、前記扱胴の前後方向で隣り合う扱歯の先端部同士の間隔よりも扱胴周方向で小さく設定する、請求項1に記載のコンバインの脱穀部。   In the front view of the handle cylinder, the concave handles the intervals between the sieve body forming pieces adjacent in the curving direction of the sieve body, rather than the intervals between the front end portions of the handle teeth adjacent in the front-rear direction of the handle cylinder. The combine threshing portion according to claim 1, wherein the threshing portion is set to be small in a waist circumference direction. 前記扱胴は、前記扱歯を、前記第一螺旋と、この第一螺旋と軸線が一致するとともに、巻き方向が同一であり、この第一螺旋よりも螺旋ピッチが大きい第二螺旋との交点に位置するように配置するとともに、前記扱歯と、この扱歯に対して前記第一螺旋の略一周前または後に前後方向で隣り合う扱歯とを、当該扱胴の正面視で、互いの一部のみが重複するように配置する、請求項1から請求項3のいずれか一項に記載のコンバインの脱穀部。   The treatment drum is a point of intersection of the tooth treatment, the first spiral, and a second spiral having the same spiral direction as that of the first spiral and having the same winding direction and a larger spiral pitch than the first spiral. The tooth handling and the tooth handling adjacent in the front-rear direction substantially before or after the first spiral with respect to the tooth handling in the front view of the handling cylinder, The threshing part of the combine according to any one of claims 1 to 3, wherein only a part of the threshing is arranged.
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JPS62164744U (en) * 1986-04-11 1987-10-20
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JPH1189405A (en) * 1997-09-24 1999-04-06 Yanmar Agricult Equip Co Ltd Thresher for combine harvester
JP2005253388A (en) * 2004-03-12 2005-09-22 Kubota Corp Threshing cylinder of threshing machine

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Publication number Priority date Publication date Assignee Title
US8437941B2 (en) 2009-05-08 2013-05-07 Gas Turbine Efficiency Sweden Ab Automated tuning of gas turbine combustion systems
US9267443B2 (en) 2009-05-08 2016-02-23 Gas Turbine Efficiency Sweden Ab Automated tuning of gas turbine combustion systems
US9328670B2 (en) 2009-05-08 2016-05-03 Gas Turbine Efficiency Sweden Ab Automated tuning of gas turbine combustion systems
US9354618B2 (en) 2009-05-08 2016-05-31 Gas Turbine Efficiency Sweden Ab Automated tuning of multiple fuel gas turbine combustion systems
US9671797B2 (en) 2009-05-08 2017-06-06 Gas Turbine Efficiency Sweden Ab Optimization of gas turbine combustion systems low load performance on simple cycle and heat recovery steam generator applications
US10260428B2 (en) 2009-05-08 2019-04-16 Gas Turbine Efficiency Sweden Ab Automated tuning of gas turbine combustion systems
US10509372B2 (en) 2009-05-08 2019-12-17 Gas Turbine Efficiency Sweden Ab Automated tuning of multiple fuel gas turbine combustion systems
US11028783B2 (en) 2009-05-08 2021-06-08 Gas Turbine Efficiency Sweden Ab Automated tuning of gas turbine combustion systems
US11199818B2 (en) 2009-05-08 2021-12-14 Gas Turbine Efficiency Sweden Ab Automated tuning of multiple fuel gas turbine combustion systems

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