JP2004016183A - Threshing device - Google Patents

Threshing device Download PDF

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Publication number
JP2004016183A
JP2004016183A JP2002179853A JP2002179853A JP2004016183A JP 2004016183 A JP2004016183 A JP 2004016183A JP 2002179853 A JP2002179853 A JP 2002179853A JP 2002179853 A JP2002179853 A JP 2002179853A JP 2004016183 A JP2004016183 A JP 2004016183A
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JP
Japan
Prior art keywords
straw rack
threshing
straw
shelf
sheave
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
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JP2002179853A
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Japanese (ja)
Inventor
Hisayuki Satoji
里路 久幸
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Iseki and Co Ltd
Iseki Agricultural Machinery Mfg Co Ltd
Original Assignee
Iseki and Co Ltd
Iseki Agricultural Machinery Mfg Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by Iseki and Co Ltd, Iseki Agricultural Machinery Mfg Co Ltd filed Critical Iseki and Co Ltd
Priority to JP2002179853A priority Critical patent/JP2004016183A/en
Publication of JP2004016183A publication Critical patent/JP2004016183A/en
Pending legal-status Critical Current

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Abstract

<P>PROBLEM TO BE SOLVED: To provide a threshing device improved in the treating efficiency of a material to be treated in the threshing device, especially in a secondary treating chamber part. <P>SOLUTION: This threshing device 15 is provided by arranging a threshing chamber 66 for separating cereal grains from cereal culms, a shaking shelf 51 for falling cereal grains while shaking the treated materials including threshed grains in the threshing chamber 66, a sieve 53 arranged on the shaking shelf 51, and a straw rack 62 arranged in the rear direction of the sieve 53 parallel to it, having a base part side rotation fulcrum at the final end part side of the shaking shelf 51 and capable of switching its posture from a state of positioning its beginning end part side in its lower direction and a state of positioning the part side in its upper position as capable of changing its posture within the device. When the amount of the treated material is small, by setting the state of positioning the beginning end part side of straw rack 62 in the upper direction against the sieve 53 so as not to convey the secondary material in the rear direction of the straw rack 62, and when the amount of the treated material is large, by setting the beginning end side of the straw rack 62 in the lower direction against the sieve 53 so as to convey the excess treated material to the rear side of the straw rack 62 to stabilize the recovery rate of the secondary material irrespective of the small or large amount of the material to be treated. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
本発明は、コンバインなどに搭載される脱穀装置に関する。
【0002】
【従来の技術】
クローラを走行手段とする農業用のコンバインの脱穀装置を例に、従来の技術を説明する。コンバインはクローラを構成する無限履帯の接地面積を広くし、水田など軟弱な圃場でも自由に走行して刈取作業などの農作業を可能としている。
【0003】
コンバインは動力源としてエンジンを搭載し、エンジンの発生する動力をコンバインの走行、刈取、脱穀などに使用するが、そのクローラは、エンジンの動力を走行トランスミッションにより変速して駆動する。該走行トランスミッションは、静油圧式無段変速装置、歯車列機械的変速手段、差動歯車装置、クラッチ手段、ブレーキ手段などにより構成され、直進走行させるときは、左右一対のクローラを等速で駆動し、コンバインを左右に旋回させるときは、左右のクローラに速度差を与えて駆動し、高速側のクローラを外側に、低速側、停止側または後退側のクローラを内側とする旋回が可能な構成としている。
【0004】
刈取装置で刈り取った穀稈は脱穀装置に送られ、脱穀された後、グレンタンクに一時的に貯留される。グレンタンクに貯留されている穀粒はオーガからトラックなどに排出される。
【0005】
従来の脱穀装置の側面断面図を図8に、平面断面図(図8のB−B線矢視図)を図9に、立面断面図(図8のC−C線矢視図)を図10に示す。従来は刈取装置で刈り取った穀稈は刈取装置に装着された穀稈搬送、調節装置で扱深さが調節され、脱穀装置15の主脱穀部である扱室66の入口66a(図10)から扱室66に挿入される。該扱室66内では穀稈は矢印A方向に移送されながら、扱室66に軸架された扱胴69の表面に多数設けられた矢印B方向に回転する扱歯69aと扱網74との相互作用により脱穀される。穀稈から分離された被処理物(穀粒や藁くず)は扱網74を矢印C1方向に通過して、揺動棚51で受け止められる。
【0006】
揺動棚51は上下前後方向に揺動するので、被処理物は矢印D方向に移動しながら、唐箕79からの送風を受けて風力選別され、比重の重い穀粒はシーブ53および選別網63を矢印E方向に通過し、一番棚板64で集積され、一番螺旋65から図示しない一番揚穀筒を経てグレンタンクへ搬送される。グレンタンクに貯留された穀粒は、オーガを経由してコンバインの外部へ搬送される。
【0007】
揺動棚51の上の被処理物のうち軽量のものは、揺動棚51の揺動作用と唐箕79のファン79aによる送風で吹き飛ばされてシーブ53の上を矢印D方向に移動し、ストローラック162の上で大きさの小さい二番穀粒は矢印G方向に落下して二番棚板85に集められ、二番螺旋86で二番揚穀筒87へ搬送される。
【0008】
二番穀粒は、正常な穀粒、枝梗粒、藁くずおよび藁くずの中に正常な穀粒が刺さっているササリ粒などの混合物であり、二番揚穀筒87の中を二番揚穀筒ラセン(図示せず)により矢印H方向に揚送されて、二番処理室入口から二番処理室67の上方へ放出される。該二番処理室67の下部に軸架する二番処理胴70は矢印J方向に回転する。二番穀粒は二番処理胴70に植設してある多数の処理歯70aに衝突しながら矢印I方向に進行する間に二番穀粒の分離と枝梗粒の枝梗の除去を行い、一部の被処理物は二番処理胴受網75から矢印C2方向に通過して揺動棚51に落下し、大部分の被処理物は二番処理室67の終端から二番処理胴送風羽根70bの送風に送られて矢印C3方向に揺動棚51に落下して扱室66からの被処理物と合流する。
【0009】
なお、扱室66の被処理物搬送方向終端部に到達した被処理物の中で、藁くずなど短尺のものは、排塵処理室入口68aから矢印A2方向に授入されて、排塵処理室68に入り、排塵処理室68では回転する排塵処理胴71の螺旋71aにより矢印K方向に搬送されながら、残っていた藁くずなどが解砕、処理される。排塵処理室68に入った少量の穀粒を含む藁くずを主体とする被処理物の中の漏下物は受け網76を矢印C4方向に通過して揺動棚51に送られる。
【0010】
【発明が解決しようとする課題】
従来の脱穀装置15内では、揺動棚51では二番物は一番物とともに一番棚板64で集積され、一番螺旋65から一番揚穀筒87を経てグレンタンク30(図1)へ搬送される。
しかし、上記構成では二番物の処理量が少ない場合に、揺動棚51の上方にあるシーブ53からストローラック162を経て脱穀装置15の外部に無駄に排出することがあり、逆に二番物の処理量が多すぎると、揺動棚51から二番処理棚86を経て、二番揚穀筒87から二番処理胴70へ二番物を搬送中に、この搬送経路内で詰まることがある。
本発明の課題は脱穀装置内、特に二番処理室部分での被処理物の処理効率を高くした脱穀装置を提供することである。
【0011】
【課題を解決するための手段】
本発明の上記課題は次の構成によって解決される。
請求項1記載の発明は、穀稈から穀粒を分離するための扱室66と、該扱室66での脱穀後の穀粒を含む被処理物を揺動させながら穀粒を落下させる揺動棚51と、該揺動棚51上に配置されたシーブ53と、該シーブ53の後方にシーブ53に並列配置され、揺動棚51の終端部側にある基部側回動支点を有し、シーブ53に対して、その始端部側を下方に位置する状態と上方に位置する状態に姿勢変更可能なストローラック62とを配置した脱穀装置である。
【0012】
請求項1記載の発明によれば、被処理物の量が少ないときは、シーブ53に対して、ストローラック62の始端部側を上方に位置する状態にして二番物をストローラック62の後方に搬送しないようにし、被処理物の量が多いときは、シーブ53に対して、ストローラック62の始端部側を下方に位置する状態にして、従来の構成通り被処理物をストローラック62の後方に搬送させ、該ストローラック62の揺動選別により穀粒を二番螺旋86で回収し、藁くずをストローラック62から機体外へ排出する。
【0013】
請求項2記載の発明は、被処理物の量を検出する被処理物量検出手段(センサ92、93、94、95)を設け、被処理物量が多い時はストローラック62の始端部側をシーブ53よりも下方に下げ、被処理物量が少ない時はストローラック62の始端部側をシーブ53よりも上方に上げるストローラック上下位置変更手段98とその制御手段97を設けた請求項1記載の脱穀装置である。
【0014】
請求項2記載の発明によれば、請求項1記載の発明の作用に加えて、脱穀装置15内の被処理物の量を被処理物量検出手段(センサ92、93、94、95)で検出した被処理物量に応じてストローラック上下位置変更手段98の設定値を自動的に変更することができる。
【0015】
請求項3記載の発明は、シーブ53とストローラック62との引継領域の下方には被処理物を脱穀処理する二番処理室67に搬送するための二番螺旋86を配置した請求項1記載の脱穀装置である。
【0016】
請求項3記載の発明は、請求項1記載の発明の作用に加えて、シーブ53とストローラック62との引継領域から落下する被処理物を速やかに二番処理室67に搬送することができる。
【0017】
【発明の効果】
請求項1記載の発明によれば、被処理物量が多い時と少ない時でストローラック62の始端部側をシーブ53よりも下方と上方にそれぞれ移動できるので、二番処理物の穀粒の回収効率が従来の装置に比べて高くなる。
請求項2記載の発明によれば、請求項1記載の発明の効果に加えて、脱穀装置15内の被処理物量に応じてストローラック上下位置変更手段98の設定値を自動的に変更でき、穀粒の回収効率が従来の装置に比べて高くなる。
請求項3記載の発明によれば、請求項1記載の発明の効果に加えて、シーブ53とストローラック62との引継領域の下方に二番螺旋86を配置すると、配置していない場合に比べて二番処理物の回収効率が良くなる。
【0018】
【発明の実施の形態】
本発明の実施の形態を図面と共に説明する。
図1は本発明の実施の形態の穀類の収穫作業を行うコンバインの左側面図を示し、図2はコンバインの正面立面図を示し、図3はコンバインの平面図(操縦席のカバーを外した状態)を示す。
【0019】
また、図4は脱穀装置部分の要部側面図であり、図5は図4のB−B線矢視の脱穀装置部分の平面図、図6は図4のC−C線矢視の脱穀装置部分の縦断面図、図7はストローラックの作動制御系の構成図である。
【0020】
図1ないし図3に示すコンバイン1の走行フレーム2の下部には、ゴムなどの可撓性材料を素材として無端帯状に成型した左右一対のクローラ4を持ち、乾田はもちろんのこと、湿田においてもクローラ4が若干沈下するだけで自由に走行できる構成の走行装置3を備え、走行フレーム2の前部には刈取装置6を搭載し、走行フレーム2の上部にはエンジン28(図5)ならびに脱穀装置15、操縦席20およびグレンタンク30を搭載する。
【0021】
刈取装置6は、図示しない刈取昇降シリンダの伸縮作用により刈取装置6全体を昇降して、圃場に植生する穀稈を所定の高さで刈取りができる構成としている。刈取装置6の前端下部に分草具7を、その背後に傾斜状にした穀稈引起し装置8を、その後方底部には刈刃(図示せず)を配置している。刈刃と脱穀装置15のフィードチェン14の始端部との間に、図示しない前部搬送装置、扱深さ調節装置、供給搬送装置などを、順次穀稈の受継搬送と扱深さ調節とができるように配置している。
【0022】
コンバイン1の刈取装置6の作動は次のように行われる。まず、エンジン28を始動して変速用、操向用などの操作レバーをコンバイン1が前進するように操作し、刈取・脱穀クラッチ(図示せず)を入り操作して機体の回転各部を伝動しながら、走行フレーム2を前進走行させると、刈取、脱穀作業が開始される。圃場に植立する穀稈は、刈取装置6の前端下部にある分草具7によって分草作用を受け、次いで穀稈引起し装置8の引起し作用によって倒伏状態にあれば直立状態に引起こされ、穀稈の株元が刈刃に達して刈取られ、前部搬送装置に掻込まれて後方に搬送され、扱深さ調節装置、供給搬送装置に受け継がれて順次連続状態で後部上方に搬送される。
【0023】
穀稈は供給搬送装置からフィードチェン14の始端部に受け継がれ、脱穀装置15に供給される。脱穀装置15は、上側に扱胴69を軸架した扱室66を配置し、扱室66の下側に選別部50を一体的に設け、供給された刈取穀稈を脱穀、選別する。
【0024】
脱穀装置15に供給された穀稈は、後で詳細に説明するが、主脱穀部である扱室66に挿入され、扱室66に軸架され、回転する扱胴69の多数の扱歯69aと、フィードチェン14による移送と、扱網74との相互作用により脱穀され、被処理物(穀粒や藁くず)は脱穀装置15内の選別部の揺動棚51で受け止められ、上下前後方向に揺動する揺動棚51上を移動しながら、唐箕79からの送風を受けて風力選別され、比重の重い穀粒はシーブ53および選別網63を通過し、一番螺旋65から搬送螺旋(図示せず)を内蔵している一番揚穀筒16(図1参照)を経てグレンタンク30へ搬送され、グレンタンク30に一時貯留される。図1に示すように一番揚穀筒16の長手方向の軸芯上にタンク本体31aの籾排出口(図示せず)と補助タンク31bの籾排出口(図示せず)を設けている。
【0025】
脱穀装置15の扱室66の終端に到達した脱穀された残りの穀稈で長尺のままのものは、図示しない排藁チェーンおよび排藁穂先チェーンに挟持されて搬送され、脱穀装置15の後部の藁用カッター5に投入された後、切断され、圃場に放出される。
【0026】
グレンタンク30内の底部に穀粒移送用のグレンタンク螺旋(図示せず)を設け、グレンタンク螺旋を駆動する螺旋駆動軸(図示せず)に縦オーガ18および横オーガ19からなる排出オーガを連接し、グレンタンク30内に貯留した穀粒を排出オーガ排出口からコンバイン1の外部に排出する。図示しないグレンタンク螺旋、縦オーガ螺旋および横オーガ螺旋はエンジン28の動力の伝動を受けて回転駆動され、それぞれのラセン羽根のスクリュウコンベヤ作用により貯留穀粒を搬送する。
【0027】
図4はコンバインの脱穀装置15の一部切り欠き側面断面図であり、図5は図4のB−B線矢視の脱穀装置15の平面断面図であり、図6は図4のC−C線矢視の脱穀装置15の立面断面図である。
【0028】
刈取装置6で刈り取った穀稈は刈取装置6に装着された穀稈搬送、調節装置で扱深さが調節され、脱穀装置15の主脱穀部である扱室66の入口66a(図6)から扱室66に挿入される。扱室66に軸架された扱胴69は、その表面に多数の扱歯69aが設けられており、図示しない駆動機構により、エンジン28からの動力が刈取・脱穀クラッチを経てプーリ128、129とベルト130に伝動され、図5ないし図6の矢印B方向に回転する。扱室66に挿入された穀粒の付いた穀稈は、レールガイド14cに沿って移動するフィードチェン14と、スプリング14bで付勢されたフィードチェン挟扼杆14aとの間に挟扼され、図5の矢印A2方向に移送されながら、矢印B方向に回転する扱胴69の扱歯69aと扱網74との相互作用により脱穀される。穀稈から分離された被処理物(穀粒や藁くず)は扱網74を矢印C1方向(図6)に通過して、揺動棚51で受け止められる。
【0029】
揺動棚51は図示しない揺動棚駆動機構の作動により上下前後方向に揺動するので、被処理物は矢印D方向(図4)に移動しながら、唐箕79からの送風を受けて風力選別され、比重の重い穀粒はシーブ53および選別網63を矢印E方向に通過し、一番棚板64で集積され、一番螺旋65から一番揚穀筒16を経てグレンタンク30へ搬送される。グレンタンク30に貯留された穀粒は、オーガ18、19を経由してコンバイン1の外部へ搬送される。
【0030】
揺動棚51の上の被処理物のうち軽量のものは、揺動棚51の揺動作用と唐箕79のファン79aによる送風に吹き飛ばされて、シーブ53の上を矢印D方向に移動し、ストローラック62の上で大きさの小さい二番穀粒は矢印G方向に落下して二番棚板85に集められ、二番螺旋86で二番揚穀筒87へ搬送される(図4)。
【0031】
正常な穀粒、枝梗粒、藁くずおよび藁くずの中に正常な穀粒が刺さっているササリ粒などの混合物である二番穀粒は、二番揚穀筒87の中を二番揚穀筒ラセン(図示せず)により矢印H方向(図4参照)に揚送されて、二番処理室入口から二番処理室67の上方へ放出される。二番処理室67の下部に軸架する二番処理胴70は図示しない駆動装置により図6の矢印J方向に回転する。二番穀粒は二番処理胴70に植設してある多数の処理歯70aに衝突しながら矢印I方向(図4)に進行する間に二番穀粒の分離と枝梗粒の枝梗の除去が行れて、被処理物の一部(三番物)は二番処理胴70の下方に設けられた受け網75を矢印C3方向に通り抜けて排塵処理室68に落下し、被処理物の大部分は二番処理胴70の端部から矢印C2方向へ排塵処理室68の排塵処理胴71上に落下する。排塵処理胴71の矢印N方向の回転で、被処理物は処理歯70aにより矢印P方向へ搬送される。その過程で扱網74の全体にわたりほぼ均一に落下して、穀粒は扱網74から矢印C1方向に通過して揺動棚51に落下し、大部分の被処理物は扱室66からの被処理物と合流する。なお、処理歯70aの代わりに螺旋を二番処理胴70に設けても良い。
【0032】
二番処理室67へ送られる前記大部分の被処理物は二番処理胴70により二番処理室67の前方に搬送され、単粒を含む枝梗粒及び穂切粒はほとんど単粒化処理され、排塵処理室68の排塵処理胴71の歯71aで矢印P方向へ搬送されながら、排塵処理胴71の回転軸の長手方向にまんべんなく扱網74上に落下して、受網74から揺動棚51に送られて効率的に穀粒を回収できる。
【0033】
また、扱室66の被処理物搬送方向終端部に到達した被処理物の中で、藁くずなど短尺のものは、排塵処理室入口68aから矢印A2(図5)方向に投入されて排塵処理室68に入り、排塵処理室68では回転する排塵処理胴71の螺旋71aにより矢印K方向(図5)に搬送されながら処理される。
【0034】
排塵処理室68に入った少量の穀粒を含む藁くずを主体とする被処理物の中の漏下物(穀粒)は受け網76(図6)から揺動棚51上に落下し、揺動棚51に設けられたストローラック62に誘導されて二番処理棚85から二番揚穀筒87を経由して二番処理室67に送られる。二番処理胴70では二番処理物は排塵処理胴71により矢印P方向に搬送されながらまんべんなく揺動棚51上に落下するので、揺動棚51の被処理物の選別性能が良い。
【0035】
排塵処理胴71の駆動は、エンジン28からプーリ101を介してプーリ101と同軸上に設けられたプーリ102、ベルト103、プーリ105、及び、排塵処理胴71の駆動軸を経由して図示しないプーリ、ベルトを経て、二番処理胴70に回転軸の設けられたプーリ(図示せず)が駆動する。従って、排塵処理胴71の駆動により二番処理胴70も同時に駆動される。さらに、排塵処理胴71用の駆動系が二番処理胴70にも伝達される。また、排塵処理胴71と二番処理胴70の回転方向が同じなので、二つの処理胴70、71の引継部で藁くずがせん断され、こなれるので性能が向上する。
【0036】
揺動棚51の排塵口前方上方に複数個の排塵ファン(横断流ファン)132、133を設け、その最前方の排塵ファン132に揺動棚の後方を取付部としたのこぎり状の歯を上表面を有するジャンプ台134の先端を臨ませる構成にしている。そのため、排塵処理胴71の後端部に送られて塊状になりやすい藁くずがジャンプ台134ののこぎり状の歯で後側に押されるようになり、そこに複数の排塵ファン132、133を設けているので、揺動棚51の広い領域にわたってジャンプ台134と排塵ファン132、133により藁くずを後方に吸引排塵させやすくなり、脱穀能力を向上させることができる。
【0037】
扱胴69から排出される籾(穀粒)と藁くずの混合物をストローラック62上で籾と藁くずに分離し、揺動棚51上に藁くずを排出させることなく、藁くずだけを排塵ファン132、133により即時吸引させ、外部に排出することができるため、揺動棚51の揺動選別負担が少なくなり、脱穀能力が従来より向上する。
【0038】
揺動棚51に取り付けたストローラック62は揺動棚51の後部にその回動基部が取り付けられ、ストローラック62の前方を自由端とする構成で、二番唐箕ファン109の選別風をストローラック62の先端に当て、籾と藁くずの風力選別能力を良くすることができる。
【0039】
本実施例では、ストローラック62の形状に特徴があり、揺動棚51の終端部側にその回動支点62aを備え、しかも、その設定位置を図4に示すように二段階に変更できる。図4のストローラック62の実線位置は被処理量が多いときに排塵処理物を速やかに機体の外部に排出する場合の設定位置であり、ストローラック62の点線位置は排塵処理物が少ないときに二番処理物を機体外部に排出しないようにする場合の設定位置である。こうして、ストローラック62の先端部を上下回動自在とし、シーブ53に対しストローラック62の先端部がシーブ53より下方に位置する状態と上方に位置する状態とにすることができる。
【0040】
被処理量が多いときに図4のストローラック62が点線位置にあると、二番処理物の搬送経路内に被処理物が大量に流れることになり、二番処理物の搬送経路内で詰まるおそれがあるので、ストローラック62を図4の実線位置に設定して被処理量を速やかに機体の外部に排出させる。
【0041】
こうして、ストローラック62へ受け渡されない被処理物は二番処理物として二番処理室67で再処理される。固定されたシーブ53に対してストローラック62が上下に移動することで二番処理物の環元量を変更でき、脱穀装置15内に供給される被処理物量が大きく変化しても、二番処理物の処理量を設定量に維持でき、安定した脱穀性能が得られる。
【0042】
ストローラック62の設定位置の変更は脱穀装置15内に供給される被処理物の量を監視しながら、オペレータが手動で行うことができるが、これを自動的に行うために、以下のようなセンサを設けて、図7に示すCPU97により自動的に設定位置を変更しても良い。
【0043】
まず、脱穀装置15の入口部で、挟扼杆14aとフィードチェン14との間に穀稈が供給され、その量の多少により作動量が異なる挟扼杆14aの作動量(わら量)を検出し、挟扼杆14aの支持部材91に設けられるわら量センサ92と、揺動棚51上に供給される穀粒量を検出し、揺動棚51に設けられる穀粒センサ93と、二番揚穀筒87を経由して二番処理室67に送られる二番物の量を検出し、二番揚穀筒87内に設けられる二番物の搬送量検出センサ94及び圃場のコーナ旋回検出センサ95の各検出値に基づき、CPU97がストローラック62の作動制御用モータ98の作動制御をする。該作動制御用モータ98の作動でアーム98aが作動し、該アーム98aとストローラック62の基部に接続しているインナー及びアウターワイヤ100を介してストローラック62が作動する構成である。
【0044】
従来の脱穀機のストローラック162は、図8に示すように揺動棚51の終端部とは反対側に回動支点162aが設けられており、ストローラック162の終端部が揺動棚51の終端部より前方で終わっているので、ストローラック162上に送られる藁くずは機外へスムーズに排出されにくく、そのため二番処理物の量が増加し、脱穀装置15内での処理量を低下させていた。
【0045】
しかし、図4に示すストローラック62の構成では、図4の点線位置への回動時には揺動棚51の終端部からさらに該棚51の外側まで延長した構造を有するストローラック62を配置しているので、藁くずがスムーズに機外へ排出され排塵能力が向上し、二番処理物の量の増加を防止できる。
【0046】
また、シーブ53の終端部とストローラック62の始端部の間から落下する被処理物が全量二番螺旋86上に落下するように配置することで、二番処理物の搬送効率が直接二番螺旋86上に落下し、二番物の回収効率が従来装置より良くなり、二番処理物の搬送路における詰まりが防止できる。
【0047】
なお、コンバインの圃場コーナでの旋回時には、ストローラック62の先端をシーブ53の上面より上げ、被処理物の全量を二番螺旋86のある二番棚板85に回収する構成であるので、唐箕79による選別風路をストローラック62が上方(図4の点線位置)に上り、シーブ53の終端部から機体外部に排出される被処理物の搬送をストローラック62で遮断して、唐箕79による選別風の抜けを悪くし、その結果選別風が弱くなり、藁くずの飛散量を低減できる。
【図面の簡単な説明】
【図1】本発明の実施の形態の穀類の収穫作業を行うコンバインの左側面を示す図である。
【図2】図1のコンバインの正面立面図である。
【図3】図1のコンバインの平面図である。
【図4】図1のコンバインの脱穀装置の側面断面図である。
【図5】図4のB−B線矢視のコンバインの脱穀装置の平面断面を示す図である。
【図6】図4のC−C線矢視のコンバインの脱穀装置の立面断面を示す図である。
【図7】ストローラックの作動制御系の構成図である。
【図8】従来技術のコンバインの脱穀装置の側面断面図である。
【図9】図8のB−B線矢視のコンバインの脱穀装置の平面断面を示す図である。
【図10】図8のC−C線矢視のコンバインの脱穀装置の立面断面を示す図である。
【符号の説明】
1 コンバイン         2 走行フレーム
3 走行装置          4 クローラ
5 藁用カッター        6 刈取装置
7 分草具           8 穀稈引起し装置
14 フィードチェン      14a フィードチェン挟扼杆
14b スプリング       14c レールガイド
15 脱穀装置         16 一番揚穀筒
18 縦オーガ         19 横オーガ
20 操縦席          28 エンジン
30 グレンタンク       31a タンク本体
31b 補助タンク       50 選別部
51 揺動棚          53 シーブ
62 ストローラック      62a 回動支点
63 選別網          64 一番棚板
65 一番螺旋         66 扱室
66a 入口          67 二番処理室
68 排塵処理室        68a 排塵処理室入口
69 扱胴           69a 扱歯
70 二番処理胴        70a 処理歯
70b 二番処理胴送風羽根   71 排塵処理胴
71a 螺旋          74 扱網
75 二番処理胴受網      76 受け網
79 唐箕           79a ファン
85 二番棚板         86 二番螺旋
87 二番揚穀筒        91 支持部材
92 わら量センサ       93 穀粒センサ
94 搬送量検出センサ     95 コーナ旋回検出センサ
97 制御手段(CPU)
98 ストローラック上下位置変更手段(作動制御用モータ)
98a アーム         100 インナー・アウターワイヤ
101、102、105、128、129 プーリ
103、130 ベルト     109 二番唐箕ファン
132、133 排塵ファン(横断流ファン)
134 ジャンプ台       162 ストローラック
162a 回動支点
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a threshing device mounted on a combine or the like.
[0002]
[Prior art]
A conventional technique will be described using an example of an agricultural combine threshing apparatus using a crawler as a traveling means. The combine increases the ground contact area of the infinite crawler track that makes up the crawler, and allows free travel in paddy fields and other soft fields to enable harvesting and other agricultural work.
[0003]
The combine is equipped with an engine as a power source, and the power generated by the engine is used for running, harvesting, threshing, etc. of the combine, and the crawler is driven by changing the power of the engine by a traveling transmission. The traveling transmission is composed of a hydrostatic continuously variable transmission, a gear train mechanical transmission, a differential gear, a clutch, and a brake. When traveling straight, the pair of left and right crawlers are driven at a constant speed. Then, when turning the combine right and left, the left and right crawlers are driven by giving a speed difference, and the high speed side crawler can be turned outside, and the low speed side, stop side or retreat side crawler can be turned inside. And
[0004]
The grain stalks cut by the cutting device are sent to a threshing device, threshed, and temporarily stored in a Glen tank. The grains stored in the Glen tank are discharged from the auger to trucks and the like.
[0005]
FIG. 8 is a side sectional view of a conventional threshing apparatus, FIG. 9 is a plan sectional view (view taken along line BB in FIG. 8), and FIG. 9 is an elevation sectional view (view taken along line CC in FIG. 8). As shown in FIG. Conventionally, the grain stalks harvested by the reaper are controlled by a grain stalk transporting and adjusting device mounted on the reaper, and the handling depth is adjusted by an inlet 66a (FIG. 10) of a handling chamber 66, which is a main threshing unit of the threshing device 15. It is inserted into the handling room 66. In the handling room 66, while the grain stalks are transported in the direction of arrow A, a plurality of teeth 69 a rotating in the direction of arrow B provided on the surface of a handling drum 69 mounted on the handling room 66 and a handling net 74 are formed. Threshed by interaction. An object to be processed (grain or straw waste) separated from the grain stem passes through the handling net 74 in the direction of arrow C <b> 1 and is received by the swinging shelf 51.
[0006]
Since the swinging shelf 51 swings up and down and back and forth, the processing object moves in the direction of arrow D and receives wind from Karino 79 to be sorted by wind, and the grains having a high specific gravity are separated by the sheave 53 and the sorting net 63. In the direction of arrow E, is accumulated on the first shelf board 64, and is conveyed from the first spiral 65 to the Glen tank via the first unshown grain cylinder. The grains stored in the Glen tank are transported to the outside of the combine via the auger.
[0007]
Among the objects to be processed on the swinging shelf 51, the light-weight objects are blown off by the fan 79a of the swinging shelf 51 and the fan 79a of the Karino 79, and move on the sheave 53 in the direction of arrow D, and The second kernel having a small size falls on the rack 162 in the direction of arrow G, is collected on the second shelf 85, and is conveyed to the second kernel 87 by the second spiral 86.
[0008]
The second grain is a mixture of normal grains, branch stalks, straw chips and sari grains in which normal grains are stabbed in straw chips. It is pumped up in the direction of arrow H by a hulling cylinder spiral (not shown), and is discharged from the second processing chamber inlet above the second processing chamber 67. The second processing cylinder 70 which is mounted on the lower part of the second processing chamber 67 rotates in the arrow J direction. The second kernel separates the second kernel and removes the branch stalk of the branch stalk while advancing in the direction of arrow I while colliding with the large number of processing teeth 70a planted in the second processing cylinder 70. A part of the object to be processed passes from the second processing cylinder receiving net 75 in the direction of arrow C2 and falls to the swinging shelf 51, and most of the object to be processed is moved from the end of the second processing chamber 67 to the second processing cylinder. The air is sent by the air blowing blade 70 b and falls on the swinging shelf 51 in the direction of arrow C <b> 3, and merges with the object to be processed from the handling chamber 66.
[0009]
Among the workpieces that have reached the end of the handling chamber 66 in the transport direction of the workpiece, short objects such as straw wastes are received in the direction of arrow A2 from the dust processing chamber inlet 68a, and the dust processing is performed. After entering the chamber 68, the remaining straw chips and the like are crushed and processed in the dust processing chamber 68 while being conveyed in the direction of the arrow K by the spiral 71a of the rotating dust processing cylinder 71. The leaked material in the processing object mainly composed of straw waste containing a small amount of grain that has entered the dust processing chamber 68 passes through the receiving net 76 in the direction of arrow C4 and is sent to the rocking shelf 51.
[0010]
[Problems to be solved by the invention]
In the conventional threshing device 15, in the swinging shelf 51, the second product is accumulated on the first shelf plate 64 together with the first product, and the Glen tank 30 (FIG. 1) from the first spiral 65 through the first fryer 87. Transported to
However, in the above configuration, when the throughput of the second product is small, the second product may be wastefully discharged from the sheave 53 above the swinging shelf 51 to the outside of the threshing device 15 via the straw rack 162. If the processing amount of the product is too large, the second product is transported from the swinging shelf 51 to the second processing cylinder 70 via the second processing shelf 86 and clogged in this transport path. There is.
An object of the present invention is to provide a threshing apparatus in which the processing efficiency of an object to be processed in a threshing apparatus, particularly in a second processing chamber, is increased.
[0011]
[Means for Solving the Problems]
The above object of the present invention is solved by the following constitution.
According to the first aspect of the present invention, there is provided a handling chamber 66 for separating grains from grain culms, and a swinging mechanism for dropping grains while swinging an object to be treated including grains after threshing in the handling chamber 66. A moving shelf 51, a sheave 53 disposed on the swing shelf 51, and a base-side rotation fulcrum disposed in parallel with the sheave 53 behind the sheave 53 and located at the end of the swing shelf 51. A threshing apparatus in which a straw rack 62 whose posture can be changed to a state in which a start end side thereof is located below and a state where it is located above the sheave 53 are arranged.
[0012]
According to the first aspect of the invention, when the amount of the object to be processed is small, the second object is placed behind the straw rack 62 with the start end side of the straw rack 62 positioned above the sheave 53. When the amount of the object to be processed is large, the starting end side of the straw rack 62 is positioned below the sheave 53, and the object to be processed is transferred to the straw rack 62 as in the conventional configuration. The straw is conveyed rearward, and the grains are collected by the second spiral 86 by swinging and sorting the straw rack 62, and the straw waste is discharged from the straw rack 62 to the outside of the machine.
[0013]
According to a second aspect of the present invention, a processing object amount detecting means (sensors 92, 93, 94, 95) for detecting the amount of the processing object is provided, and when the amount of the processing object is large, the starting end side of the straw rack 62 is sheave. 2. A threshing rack vertical position changing means 98 for raising the starting end of the straw rack 62 above the sheave 53 when the amount of material to be processed is lower than the sheave 53 and a control means 97 therefor. Device.
[0014]
According to the second aspect of the present invention, in addition to the operation of the first aspect, the amount of the processed object in the threshing device 15 is detected by the processed object amount detecting means (sensors 92, 93, 94, 95). The setting value of the straw rack vertical position changing means 98 can be automatically changed in accordance with the processed object amount.
[0015]
According to a third aspect of the present invention, a second spiral 86 is provided below the transfer area between the sheave 53 and the straw rack 62 for transporting the workpiece to the second processing chamber 67 for threshing. Threshing equipment.
[0016]
According to the third aspect of the present invention, in addition to the operation of the first aspect, the object to be processed falling from the transfer area between the sheave 53 and the straw rack 62 can be quickly conveyed to the second processing chamber 67. .
[0017]
【The invention's effect】
According to the first aspect of the present invention, the start end side of the straw rack 62 can be moved below and above the sheave 53 when the amount of material to be processed is large and small, respectively, so that the kernel of the second processed material is collected. Efficiency is higher compared to conventional devices.
According to the second aspect of the present invention, in addition to the effect of the first aspect, the setting value of the straw rack vertical position changing means 98 can be automatically changed according to the amount of material to be processed in the threshing device 15, Grain recovery efficiency is higher than with conventional equipment.
According to the third aspect of the invention, in addition to the effect of the first aspect, when the second spiral 86 is arranged below the takeover area between the sheave 53 and the straw rack 62, compared to the case where the second spiral 86 is not arranged. Thus, the recovery efficiency of the second processed material is improved.
[0018]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a left side view of a combine for harvesting cereals according to an embodiment of the present invention, FIG. 2 is a front elevation view of the combine, and FIG. 3 is a plan view of the combine (with a cockpit cover removed. State).
[0019]
4 is a side view of a main part of the threshing apparatus, FIG. 5 is a plan view of the threshing apparatus taken along line BB of FIG. 4, and FIG. 6 is threshing taken along line CC of FIG. FIG. 7 is a longitudinal sectional view of an apparatus portion, and FIG. 7 is a configuration diagram of an operation control system of the straw rack.
[0020]
At the lower part of the traveling frame 2 of the combine 1 shown in FIG. 1 to FIG. 3, a pair of left and right crawlers 4 formed into an endless band using a flexible material such as rubber as a raw material is used. The traveling device 3 has a configuration in which the crawler 4 can travel freely only by slightly sinking. The cutting device 6 is mounted on the front of the traveling frame 2, and the engine 28 (FIG. 5) and threshing are provided on the upper portion of the traveling frame 2. The device 15, the cockpit 20 and the Glen tank 30 are mounted.
[0021]
The mowing device 6 is configured so that the entire mowing device 6 can be moved up and down by the expansion and contraction action of a mowing lift cylinder (not shown), so that the culm vegetated in the field can be mowing at a predetermined height. A weeding tool 7 is arranged below the front end of the mowing device 6, a grain stem raising device 8 having an inclined shape behind it, and a mowing blade (not shown) is arranged at the rear bottom portion. Between the cutting blade and the starting end of the feed chain 14 of the threshing device 15, a not-shown front conveying device, a handling depth adjusting device, a feeding conveying device, etc. It is arranged to be able to.
[0022]
The operation of the harvester 6 of the combine 1 is performed as follows. First, the engine 28 is started, and the operating levers for shifting, steering and the like are operated so that the combine 1 moves forward, and the mowing / threshing clutch (not shown) is operated to transmit the rotating parts of the machine body. While the traveling frame 2 is traveling forward, the cutting and threshing operations are started. Grain culm to be planted in the field is subjected to weeding by the weeding tool 7 at the lower front end of the cutting device 6, and then raised by the culm raising device 8 to an upright state if it is in a lying state. The stem of the culm reaches the cutting blade and is harvested, scraped by the front conveyor, conveyed to the rear, transferred to the handling depth adjustment device, and supplied by the conveyor, and successively continuously and upwardly rearward. Conveyed.
[0023]
The cereal culm is inherited from the supply and transport device to the start end of the feed chain 14 and supplied to the threshing device 15. The threshing device 15 arranges a handling room 66 on which a handling drum 69 is mounted on an upper side, and a sorting unit 50 is integrally provided below the handling room 66 to thresh and sort the supplied harvested grain culm.
[0024]
The grain culm supplied to the threshing device 15 is inserted into a handling chamber 66, which is a main threshing unit, is axially suspended in the handling chamber 66, and has a large number of teeth 69a of a rotating handling drum 69, which will be described in detail later. The threshing is carried out by the transport by the feed chain 14 and the interaction with the handling net 74, and the object to be treated (grain or straw waste) is received by the swinging shelf 51 of the sorting unit in the threshing device 15, and is moved in the vertical and longitudinal directions. While moving on the rocking shelf 51 that is rocking, the wind from the Karo 79 is blown, and the wind is sorted. The grains having a high specific gravity pass through the sieve 53 and the sorting net 63, and are conveyed from the first spiral 65 to the transport spiral ( (Not shown) is transported to the Glen tank 30 through the first-most grain bin 16 (see FIG. 1), and is temporarily stored in the Glen tank 30. As shown in FIG. 1, a paddy discharge port (not shown) of the tank body 31 a and a paddy discharge port (not shown) of the auxiliary tank 31 b are provided on a longitudinal axis of the first graining cylinder 16.
[0025]
The remaining threshed grain culm, which has reached the end of the handling chamber 66 of the threshing device 15, remains long and is conveyed by being sandwiched by a not-shown straw chain and a straw tip chain, which are not shown. After being put into the straw cutter 5, it is cut and discharged to the field.
[0026]
A grain tank spiral (not shown) for grain transfer is provided at the bottom of the Glen tank 30, and a discharge auger comprising a vertical auger 18 and a horizontal auger 19 is provided on a spiral drive shaft (not shown) for driving the Glen tank spiral. The grains stored in the Glen tank 30 are discharged to the outside of the combine 1 from the discharge auger discharge port. A Glen tank spiral, a vertical auger spiral, and a horizontal auger spiral, not shown, are driven to rotate by receiving the power of the engine 28, and transport the stored grains by the screw conveyor action of the respective spiral blades.
[0027]
FIG. 4 is a partially cutaway side sectional view of the combine threshing device 15, FIG. 5 is a plan sectional view of the threshing device 15 taken along line BB of FIG. 4, and FIG. It is an elevation sectional view of the threshing device 15 seen from the arrow C line.
[0028]
Grain stalks harvested by the reaping device 6 are adjusted in handling depth by the cereal stalk transporting and adjusting device mounted on the reaping device 6, and from the entrance 66 a (FIG. 6) of the handling chamber 66, which is the main threshing unit of the threshing device 15. It is inserted into the handling room 66. The handling cylinder 69 mounted on the handling chamber 66 is provided with a large number of handling teeth 69a on its surface, and the power from the engine 28 is transmitted to the pulleys 128 and 129 via the cutting and threshing clutch by a drive mechanism (not shown). It is transmitted to the belt 130 and rotates in the direction of arrow B in FIGS. The grain stalk with the grain inserted into the handling room 66 is sandwiched between the feed chain 14 moving along the rail guide 14c and the feed chain sandwiching rod 14a urged by the spring 14b, While being transported in the direction of arrow A2 in FIG. An object to be processed (grain or straw waste) separated from the grain stem passes through the handling net 74 in the direction of the arrow C1 (FIG. 6) and is received by the swinging shelf 51.
[0029]
Since the swing shelf 51 swings up and down and back and forth by the operation of a swing shelf drive mechanism (not shown), the workpiece is moved in the direction of arrow D (FIG. 4), and receives wind from Karino 79 to select a wind force. Then, the kernel having a high specific gravity passes through the sieve 53 and the sorting net 63 in the direction of arrow E, is accumulated on the first shelf board 64, and is conveyed from the first spiral 65 to the Glen tank 30 through the first fried cylinder 16. You. The grains stored in the Glen tank 30 are transported to the outside of the combine 1 via the augers 18 and 19.
[0030]
Of the objects to be processed on the swinging shelf 51, the light ones are blown off by the fan 79a of the swinging shelf 51 and the fan 79a of the Karino 79, and move on the sheave 53 in the direction of arrow D, The second grain having a small size falls on the straw rack 62 in the direction of arrow G, is collected on the second shelf 85, and is conveyed to the second fried cylinder 87 by the second spiral 86 (FIG. 4). .
[0031]
The second kernel, which is a mixture of normal kernels, branch stalks, straw chips and scorpion kernels in which normal kernels are stuck in the straw chips, is second-lifted in the second-floor cylinder 87. It is pumped up in the direction of arrow H (see FIG. 4) by a grain spiral (not shown), and is discharged from the inlet of the second processing chamber to above the second processing chamber 67. The second processing cylinder 70, which is mounted on the lower part of the second processing chamber 67, is rotated in a direction indicated by an arrow J in FIG. While the second kernel advances in the direction of arrow I (FIG. 4) while colliding with a large number of processing teeth 70a planted in the second processing cylinder 70, the separation of the second kernel and branching of the branch branch Is removed, a part of the object to be processed (third object) passes through the receiving net 75 provided below the second processing cylinder 70 in the direction of arrow C3, and falls into the dust discharge processing chamber 68, where Most of the processed material falls from the end of the second processing cylinder 70 onto the dust processing cylinder 71 of the dust processing chamber 68 in the direction of arrow C2. The object to be processed is conveyed in the direction of arrow P by the processing teeth 70a by the rotation of the dust processing cylinder 71 in the direction of arrow N. In the process, the grains fall almost uniformly over the entire handling net 74, the grains pass through the handling net 74 in the direction of the arrow C <b> 1 and fall on the swinging shelf 51, and most of the objects to be processed are discharged from the handling chamber 66. Merge with the object. A spiral may be provided on the second processing cylinder 70 instead of the processing tooth 70a.
[0032]
Most of the object to be processed sent to the second processing chamber 67 is conveyed to the front of the second processing chamber 67 by the second processing cylinder 70, and the branch and spikelets including single grains are almost single-grained. Then, while being conveyed in the direction of arrow P by the teeth 71a of the dust treatment cylinder 71 of the dust treatment chamber 68, the dust drops uniformly fall on the handling net 74 in the longitudinal direction of the rotation axis of the dust treatment cylinder 71, and are received by the receiving net 74. Is sent to the swinging shelf 51 to efficiently collect the grains.
[0033]
Among the objects to be processed, which have reached the end of the handling chamber 66 in the direction of transport of the objects, short objects such as straw wastes are thrown in the direction of the arrow A2 (FIG. 5) from the dust processing chamber inlet 68a and discharged. The dust enters the dust processing chamber 68 and is processed while being conveyed in the direction of arrow K (FIG. 5) by the spiral 71a of the rotating dust processing cylinder 71 in the dust processing chamber 68.
[0034]
Leakage (grain) in the processing object mainly composed of straw waste containing a small amount of grain that has entered the dust treatment chamber 68 falls from the receiving net 76 (FIG. 6) onto the rocking shelf 51. Then, it is guided to the straw rack 62 provided on the swinging shelf 51 and sent from the second processing shelf 85 to the second processing chamber 67 via the second fryer 87. In the second processing cylinder 70, the second processed material falls evenly onto the swinging shelf 51 while being conveyed in the direction of the arrow P by the dust discharge processing cylinder 71, so that the sorting object of the swinging shelf 51 is good.
[0035]
The driving of the dust processing cylinder 71 is illustrated via a pulley 102, a belt 103, a pulley 105 provided coaxially with the pulley 101 from the engine 28 via the pulley 101, and a driving shaft of the dust processing cylinder 71. A pulley (not shown) provided with a rotation shaft on the second processing cylinder 70 is driven via a pulley and a belt which are not used. Accordingly, the second processing cylinder 70 is simultaneously driven by the driving of the dust processing cylinder 71. Further, the drive system for the dust processing cylinder 71 is also transmitted to the second processing cylinder 70. In addition, since the rotation direction of the dust processing cylinder 71 and the second processing cylinder 70 are the same, the straw waste is sheared at the transfer section of the two processing cylinders 70 and 71 to be separated, thereby improving the performance.
[0036]
A plurality of dust discharge fans (cross-flow fans) 132 and 133 are provided in front of the dust outlet of the swinging shelf 51, and a saw-tooth shape is attached to the foremost dust removal fan 132 with the rear of the swinging shelf as an attachment portion. The teeth are configured to face the tip of the jump stand 134 having the upper surface. Therefore, the straw chips which are sent to the rear end portion of the dust processing cylinder 71 and tend to be clumped are pushed rearward by the saw-shaped teeth of the jump table 134, and the plurality of dust fans 132, 133 are there. Is provided, it becomes easy to suck and discharge straw chips backward by the jump table 134 and the dust discharge fans 132 and 133 over a wide area of the swinging shelf 51, and the threshing ability can be improved.
[0037]
The mixture of rice (grain) and straw waste discharged from the handling cylinder 69 is separated into rice and straw waste on the straw rack 62, and only the straw waste is discharged onto the swinging shelf 51 without discharging the straw waste. Since the dust can be immediately sucked by the dust fans 132 and 133 and discharged to the outside, the swing sorting load on the swing shelf 51 is reduced, and the threshing ability is improved as compared with the related art.
[0038]
The straw rack 62 attached to the swing shelf 51 has a structure in which a rotating base is attached to the rear of the swing shelf 51 and the front end of the straw rack 62 is a free end. It is possible to improve the ability of sorting the paddy and straw waste by the wind at the tip of 62.
[0039]
The present embodiment is characterized by the shape of the straw rack 62. The swing rack 51 is provided with a rotation fulcrum 62a at the end of the swing rack 51, and the set position can be changed in two stages as shown in FIG. The solid line position of the straw rack 62 in FIG. 4 is a set position in a case where the dust-treated material is quickly discharged to the outside of the machine body when the amount to be treated is large, and the dotted line position of the straw rack 62 has little dust-treated material. This is a setting position for preventing the second processed material from being discharged to the outside of the machine. In this way, the tip of the straw rack 62 can be freely rotated up and down, so that the tip of the straw rack 62 can be positioned below and above the sheave 53 with respect to the sheave 53.
[0040]
If the straw rack 62 shown in FIG. 4 is at the position indicated by the dotted line when the amount to be processed is large, the object to be processed flows in a large amount in the transport path for the second object, and is clogged in the transport path for the second object. For this reason, the straw rack 62 is set at the position indicated by the solid line in FIG. 4 and the amount to be processed is quickly discharged to the outside of the machine.
[0041]
In this manner, the processing object not transferred to the straw rack 62 is reprocessed in the second processing chamber 67 as a second processing object. By moving the straw rack 62 up and down with respect to the fixed sheave 53, the amount of reduction of the second processed material can be changed. The processing amount of the processed material can be maintained at the set amount, and stable threshing performance is obtained.
[0042]
Changing the setting position of the straw rack 62 can be manually performed by an operator while monitoring the amount of the material to be processed supplied into the threshing apparatus 15, but in order to perform this automatically, the following operation is performed. A sensor may be provided, and the set position may be automatically changed by the CPU 97 shown in FIG.
[0043]
First, at the entrance of the threshing device 15, a cereal culm is supplied between the pinching rod 14a and the feed chain 14, and the operation amount (straw amount) of the pinching rod 14a whose operation amount varies depending on the amount is detected. A straw sensor 92 provided on the support member 91 of the clamping rod 14a; a grain sensor 93 provided on the swing shelf 51 for detecting the amount of grains supplied to the swing shelf 51; The amount of the second product sent to the second processing chamber 67 via the fryer 87 is detected, and the second product transport amount detection sensor 94 provided in the second fryer 87 and the corner turning of the field are detected. The CPU 97 controls the operation of the operation control motor 98 of the straw rack 62 based on each detection value of the sensor 95. The operation of the operation control motor 98 causes the arm 98a to operate, and the straw rack 62 operates via the inner and outer wires 100 connected to the arm 98a and the base of the straw rack 62.
[0044]
The straw rack 162 of the conventional threshing machine is provided with a rotation fulcrum 162a on the opposite side to the end of the swing shelf 51 as shown in FIG. Since the processing ends before the end portion, the straw waste sent on the straw rack 162 is not easily discharged to the outside of the machine, so that the amount of the second processed material increases and the throughput in the threshing device 15 decreases. I was
[0045]
However, in the configuration of the straw rack 62 shown in FIG. 4, the straw rack 62 having a structure extending from the end of the swinging shelf 51 to the outside of the shelf 51 is arranged when rotating to the position indicated by the dotted line in FIG. 4. As a result, the straw waste is smoothly discharged out of the machine, the dust discharging ability is improved, and an increase in the amount of the second processed material can be prevented.
[0046]
In addition, by arranging the object to be dropped from between the end of the sheave 53 and the start of the straw rack 62 such that the entire amount of the object to be dropped falls on the second spiral 86, the transfer efficiency of the second processed object is directly reduced to the second. It falls on the spiral 86, and the collection efficiency of the second processed material is better than that of the conventional device, and the clogging of the conveyance path for the second processed material can be prevented.
[0047]
When turning the combine at the field corner, the tip of the straw rack 62 is raised above the upper surface of the sheave 53, and the entire amount of the object to be processed is collected on the second shelf 85 having the second spiral 86. The straw rack 62 goes up (in a dotted line position in FIG. 4) through the sorting wind path by 79, and the transport of the workpiece discharged from the end of the sheave 53 to the outside of the machine is cut off by the straw rack 62. The separation wind is made poor, and as a result, the selection wind is weakened, and the scattering amount of straw waste can be reduced.
[Brief description of the drawings]
FIG. 1 is a diagram showing a left side surface of a combine for performing a cereal harvesting operation according to an embodiment of the present invention.
FIG. 2 is a front elevation view of the combine of FIG. 1;
FIG. 3 is a plan view of the combine shown in FIG. 1;
FIG. 4 is a side sectional view of the combine threshing apparatus of FIG. 1;
FIG. 5 is a plan view of the combine threshing apparatus taken along line BB of FIG. 4;
6 is a diagram showing an elevational cross section of the combine threshing apparatus taken along line CC of FIG. 4;
FIG. 7 is a configuration diagram of an operation control system of the straw rack.
FIG. 8 is a side sectional view of a conventional combine threshing apparatus.
9 is a plan view of the combine threshing apparatus taken along the line BB of FIG. 8;
FIG. 10 is a view showing an elevational cross section of the combine threshing device as viewed in the direction of arrows CC in FIG. 8;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Combine 2 Traveling frame 3 Traveling device 4 Crawler 5 Straw cutter 6 Harvesting device 7 Weeding device 8 Grain cultivation device 14 Feed chain 14a Feed chain pinching rod 14b Spring 14c Rail guide 15 Threshing device 16 First-most grain cylinder Reference Signs List 18 vertical auger 19 horizontal auger 20 cockpit 28 engine 30 Glen tank 31a tank body 31b auxiliary tank 50 sorting unit 51 rocking shelf 53 sheave 62 straw rack 62a rotation fulcrum 63 sorting net 64 first shelf board 65 most spiral 66 handling Chamber 66a Inlet 67 Second processing chamber 68 Dust processing chamber 68a Dust processing chamber inlet 69 Handling cylinder 69a Handling teeth 70 Second processing cylinder 70a Processing teeth 70b Second processing cylinder blower blade 71 exhaust Dust processing cylinder 71a Spiral 74 Handling net 75 Second processing cylinder receiving net 76 Receiving net 79 Karamin 79a Fan 85 Second shelf 86 Second spiral 87 Second lifting cylinder 91 Support member 92 Straw sensor 93 Grain sensor 94 Transport Amount detection sensor 95 Corner turning detection sensor 97 Control means (CPU)
98 Straw rack vertical position changing means (motor for operation control)
98a Arm 100 Inner / Outer wire 101, 102, 105, 128, 129 Pulley 103, 130 Belt 109 Second Karino fan 132, 133 Dust exhaust fan (cross-flow fan)
134 Jump stand 162 Straw rack 162a Rotating fulcrum

Claims (3)

穀稈から穀粒を分離するための扱室66と、該扱室66での脱穀後の穀粒を含む被処理物を揺動させながら穀粒を落下させる揺動棚51と、該揺動棚51上に配置されたシーブ53と、該シーブ53の後方にシーブ53に並列配置され、揺動棚51の終端部側にある基部側回動支点を有し、シーブ53に対して、その始端部側を下方に位置する状態と上方に位置する状態に姿勢変更可能なストローラック62とを配置したことを特徴とする脱穀装置。A handling chamber 66 for separating grains from the culm, a swinging shelf 51 for dropping grains while swinging an object to be processed including threshed grains in the handling chamber 66; A sheave 53 arranged on the shelf 51, and a base-side rotation fulcrum arranged in parallel with the sheave 53 behind the sheave 53 and located at the end of the swinging shelf 51; A threshing apparatus characterized in that a straw rack 62 whose posture can be changed between a state in which the start end side is located below and a state in which it is located above is arranged. 被処理物の量を検出する被処理物量検出手段(センサ92、93,94、95)を設け、被処理物量が多い時はストローラック62の始端部側をシーブ53よりも下方に下げ、被処理物量が少ない時はストローラック62の始端部側をシーブ53よりも上方に上げるストローラック上下位置変更手段98とその制御手段97を設けたことを特徴とする請求項1記載の脱穀装置。A processing object amount detecting means (sensors 92, 93, 94, 95) for detecting the amount of the processing object is provided. When the processing object amount is large, the starting end side of the straw rack 62 is lowered below the sheave 53, and 2. The threshing apparatus according to claim 1, further comprising a straw rack vertical position changing means 98 for raising the starting end side of the straw rack 62 above the sheave 53 when the amount of the processed material is small, and a control means 97 therefor. 前記シーブ53とストローラック62との引継領域の下方には被処理物を脱穀処理する二番処理室67に搬送するための二番螺旋86を配置したことを特徴とする請求項1記載の脱穀装置。The threshing machine according to claim 1, wherein a second spiral (86) is provided below a transfer area between the sheave (53) and the straw rack (62) to convey an object to a second processing chamber (67) for threshing. apparatus.
JP2002179853A 2002-06-20 2002-06-20 Threshing device Pending JP2004016183A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002179853A JP2004016183A (en) 2002-06-20 2002-06-20 Threshing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002179853A JP2004016183A (en) 2002-06-20 2002-06-20 Threshing device

Publications (1)

Publication Number Publication Date
JP2004016183A true JP2004016183A (en) 2004-01-22

Family

ID=31177154

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2002179853A Pending JP2004016183A (en) 2002-06-20 2002-06-20 Threshing device

Country Status (1)

Country Link
JP (1) JP2004016183A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113767752A (en) * 2021-10-09 2021-12-10 石河子大学 Corn kernel harvester for intercropping

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113767752A (en) * 2021-10-09 2021-12-10 石河子大学 Corn kernel harvester for intercropping
CN113767752B (en) * 2021-10-09 2024-04-12 石河子大学 Corn kernel harvester for intercropping

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