JP3727858B2

JP3727858B2 - Combine

Info

Publication number: JP3727858B2
Application number: JP2001063261A
Authority: JP
Inventors: 晴三稲垣; 善和込山; 喜崇新保
Original assignee: Yanmar Agricultural Equipment Co Ltd
Current assignee: Yanmar Agricultural Equipment Co Ltd
Priority date: 2001-03-07
Filing date: 2001-03-07
Publication date: 2005-12-21
Anticipated expiration: 2017-04-28
Also published as: JP2001269038A

Description

【０００１】
【発明の属する技術分野】
本発明は穀稈を連続的に刈取って脱穀するコンバインに関する。
【０００２】
【発明が解決しようとする課題】
従来、例えば５条刈りまたは６条刈り用など刈取部の大型化によりフィードチェンに送給する穀稈量が多くなると、フィードチェン始端部で穀稈受継姿勢が乱れたり、穀稈が脱落し易くなる等の問題がある。
【０００３】
【課題を解決するための手段】
そこで、本発明では、刈取部に、刈取穀稈の株元側を受継ぎ搬送する縦搬送チェンと、刈取穀稈の穂先側を脱穀部に搬送する後上部搬送タインと、前記縦搬送チェンの送り終端部に設けてフィードチェンに適正姿勢で刈取穀稈を受継ぎ搬送する補助搬送前チェン及び補助搬送後チェンとを設け、前記補助搬送後チェンの内側にギヤボックスを設けると共に、同ギヤボックスは前記刈取部を支持する支持架台に固定し、前記ギヤボックスには片持状態に取付ける前記補助搬送後チェンへの回転軸を軸装したコンバインにおいて、前記補助搬送後チェンの上側搬送部に上方から棒状受継ガイドを接離自在に弾圧させて穀稈を挟持搬送すると共に、フィードチェンの上側の始端搬送面に上方から棒状ガイドを接離自在に弾圧させて穀稈を挟持搬送するようにし、かつ、棒状受継ガイドは、棒状ガイドよりも内方側で高い位置に設け、前記補助搬送前チェンの下面に棒状受ガイドの一端を固定させると共に、補助搬送後チェン前部を介してフィードチェン前部に棒状受ガイド他端側を延設させ、しかも、棒状受ガイドは、補助搬送前チェン及び前記各ガイドの下方側でこれらに対して斜交させて取付けたことを特徴とするコンバインを提供するものである。
【０００５】
【発明の実施の形態】
以下、本発明の実施例を図面に基づいて詳述する。図１はコンバインの全体側面図、図２は同平面図であり、図中（１）は走行クローラ（２）を装設するトラックフレーム、（３）は前記トラックフレーム（１）に架設する機台、（４）はフィードチェン（５）を左側に張架し扱胴（６）及び処理胴（７）を内蔵している脱穀機である脱穀部、（８）は刈刃（９）及び穀稈搬送機構（１０）などを備える刈取部、（１１）は刈取フレーム（１２）を介して刈取部（８）を昇降させる油圧刈取シリンダ、（１３）は排藁チェン（１４）終端を臨ませる排藁カッタ、（１５）は脱穀部（４）からの穀粒を揚穀筒（１６）を介して搬入する穀物タンク、（１７）は前記タンク（１５）の穀粒を機外に搬出する排出オーガ、（１８）は運転操作部（１９）及び運転席（２０）を備える運転キャビン、（２１）は運転キャビン（１８）下方に設けるエンジンであり、連続的に穀稈を刈取って脱穀するように構成している。
【０００６】
さらに、図３及び図４に示す如く、分草板（２２）…を介し取入れられる未刈り穀稈を起立させる引起タイン（２３）…を有する６条分の引起ケース（２４）…と、引起された穀稈の株元側を掻込む６条分のスターホイル（２５）…及び掻込ベルト（２６）…と、掻込んだ穀稈株元を切断する刈刃（９）と、右側２条分の刈取穀稈を左斜め後方に搬送する右下部搬送チェン（２７）及び右上部搬送タイン（２８）と、中央２条分の刈取穀稈を後方の右下部搬送チェン（２７）及び右上部搬送タイン（２８）の送り中間位置近傍に合流させる中央下部搬送チェン（２９）及び中央上部搬送タイン（３０）と、左側２条分の刈取穀稈を右下部搬送チェン（２７）及び右上部搬送体（２８）の送り終端位置近傍に合流させる左下部搬送チェン（３１）及び左上部搬送タイン（３２）と、前記右下部搬送チェン（２７）の送り終端に合流する６条分の刈取穀稈の株元側を受継ぎ搬送する縦搬送チェン（３３）と、前記右上部搬送タイン（２８）の送り終端に合流する６条分の刈取穀稈の穂先側を脱穀部（４）に搬送する後上部搬送タイン（３４）と、前記縦搬送チェン（３３）の送り終端部に設けてフィードチェン（５）に適正姿勢で刈取穀稈を受継ぎ搬送する補助搬送前チェン（３５）及び補助搬送後チェン（３６）を、６条刈り用の前記刈取部（８）に備え、６条分の刈取穀稈を縦搬送チェン（３３）に受継ぎ合流させてフィードチェン（５）に供給し脱穀処理するように構成している。
【０００７】
また、前記刈取フレーム（１２）に引起駆動パイプ（３７）を立設させ、該パイプ（３７）上端部に引起駆動ケース（３８）を取付け、該ケース（３８）を介して２条１組として各引起ケース（２４）…に駆動力を伝えると共に、引起駆動ケース（３８）に引起搬送タイン（３９）を取付け、２条分１組の６条引起し穀稈穂先側を６条分３本の前記タイン（３９）によって後方の各タイン（２８）（３０）（３２）に受継がせるように構成している。
【０００８】
さらに、図５に示す如く、前記エンジン（２１）駆動力をカウンタケース（４０）の入力軸（４１）に伝え、カウンタケース（４０）を介して脱穀部（４）の扱胴（６）など各部に脱穀駆動力を伝えると共に、左右走行クローラ（２）（２）を駆動するミッションケース（４２）にカウンタケース（４０）から走行駆動力を伝える。また、前記カウンタケース（４０）からの定速駆動力とミッションケース（４２）からの車速同調駆動力を刈取１軸（４３）に伝え、該１軸（４３）に刈取２軸（４４）を介して刈取３軸（４５）を連結させ、該３軸（４５）に引起入力軸（４６）を介して引起軸（４７）を連結させる。
【０００９】
そして、前記刈取１軸（４３）を介して前記補助搬送後チェン（３６）を駆動すると共に、右２条分のスターホイル（２５）（２５）に掻込ベルト（２６）（２６）、右の搬送チェン（２７）及び搬送タイン（２８）、縦搬送チェン（３３）、後上部搬送タイン（３４）、補助搬送前チェン（３５）を、前記刈取２軸（４４）を介して駆動する。また、刈取３軸（４５）に左右刈刃入力軸（４８）（４８）を連結させ、左右に分割形成した左右刈刃（９）（９）を夫々駆動すると共に、中と左の４条分のスターホイル（２５）…及び掻込ベルト（２６）…、中と左の搬送チェン（２９）（３１）及び搬送タイン（３０）（３２）を、前記引起入力軸（４６）を介して駆動する。また、６条分の各引起タイン（２３）…と、３本の引起搬送タイン（３９）…を、前記引起軸（４７）を介して駆動するもので、前記カウンタケース（４０）の定速駆動力によって最低速度を維持し乍ら、ミッションケース（４２）の車速同調駆動力によって走行速度と同調する速度で刈取部（８）各部を駆動するように構成している。
【００１０】
さらに、図６に示す如く、前記引起駆動パイプ（３７）に引起変速ケース（４９）を取付け、引起入力軸（４６）上で高速ギヤ（５０）と低速ギヤ（５１）の間に標準ギヤ（５２）を配置させ、高速変速ギヤ（５３）及び低速変速ギヤ（５４）を各ギヤ（５０）（５１）に常時噛合させ、標準ギヤ（５２）に噛合させる切換ギヤ（５５）にドグクラッチ爪（５６）（５７）を設け、各爪（５６）（５７）を係合させるドグクラッチ爪（５８）（５９）を各ギヤ（５３）（５４）に設けると共に、引起軸（４７）に連結させる引起変速軸（６０）上に切換ギヤ（５５）を摺動自在に係合軸支させ、切換ギヤ（５５）を摺動させるシフトフォーク（６１）をシフト軸（６２）に設け、シフト軸（６２）に引起変速レバー（６３）を連結させるもので、高速及び標準及び低速の順に変速させるから、高速と標準の間を低速とした従来構造に比べて変速操作性を向上させると共に、高速ギヤ（５０）及び低速ギヤ（５１）の常時噛合によって半噛み等による強度不足をなくし、ギヤ（５０）（５１）破損を防止し、また爪（５６）（５７）（５８）（５９）の係合によって動力伝達させることによってケース（４９）をコンパクトに形成できるように構成している。
【００１１】
さらに、図７、図８に示す如く、前記引起ケース（２４）内部に駆動スプロケット（６４）などを介してタインチェン（６５）を張設させ、該チェン（６５）に複数の引起タイン（２３）…を等間隔に取付け、合成樹脂製の上中下の各タインガイド（６６）（６７）（６８）を引起ケース（２４）に固定させ、各タインガイド（６６）（６７）（６８）によって引起タイン（２３）を起立支持させると共に、穀稈引起力が最も大きい中タインガイド（６７）内側のケース（２４）に鉄板製補強板（６９）を固定させ、中タインガイド（６７）のタイン（２３）支持強度を補強板（６９）によって向上させ、中タインガイド（６７）の変形を防止し、また補強板（６９）によるケース（２４）強度向上によってケース（２４）の口開き変形を防止し、また中タインガイド（６７）の成形樹脂肉厚を薄くして加工精度向上及び製造コスト低減などを行えるように構成している。
【００１２】
さらに、図９に示す如く、右下部搬送チェン（２７）中間に中下部搬送チェン（２９）終端を連結させ、右下部搬送チェン（２７）終端に左下部搬送チェン（３１）終端を連結させ、右２条の穀稈に中２条の穀稈をチェン（２７）中間で合流させた後、右４条の穀稈に左２条の穀稈をチェン（２７）終端で合流させ、６条分の穀稈を脱穀部（４）に送給すると共に、チェン（２７）中間に一端側を弾圧させる２条合流バネ（７０）他端を本機側にボルト（７１）止め固定させ、またチェン（２９）（３１）終端に一端側を弾圧させる２条合流バネ（７２）（７３）他端を本機側にボルト（７４）（７５）止め固定させ、またチェン（２７）終端に一端側を弾圧させる４条合流バネ（７６）他端を本機側にボルト（７７）止め固定させる。また、２条合流バネ（７０）（７２）（７３）中間を２回巻きにして巻回形成し、４条合流バネ（７６）中間を１回巻きにして巻回形成し、同一金属線材料によって各バネ（７０）（７２）（７３）（７６）を形成し、２条合流バネ（７０）（７２）（７３）力よりも４条合流バネ（７６）力を大きく形成すると共に、チェン（２９）終端のバネ製巻付防止ガイド（７８）先端を各バネ（７０）（７６）間のチェン（２７）に弾圧させ、チェン（３１）終端のバネ製巻付防止ガイド（７９）先端をバネ（７６）後方のチェン（２７）軌跡内に延設させる。
【００１３】
上記のように、刈取り穀稈を搬送する複数の搬送チェン（２７）（２９）（３１）をハの字形に合流連結させるコンバインにおいて、前記チェン（２７）送り終端側の合流バネ（７６）力を最も大きくし、前記チェン（２７）送り始端側の合流バネ（７０）力を小さく形成し、搬送する穀稈条数が少ない場所で合流バネ（７０）力を下げ、穀稈条数が多い場所で合流バネ（７６）力を上げ、搬送チェン（２７）（２９）（３１）及び合流バネ（７０）（７６）の穀稈挾持力を適正維持し、合流部での穀稈の停滞を防いでスムーズに後方に受継ぎ搬送させると共に、一端を本機に固定させかつ他端を搬送チェン（２７）（２９）（３１）に弾圧させる合流バネ（７０）（７２）（７３）（７６）中間を巻回形成し、搬送チェン（２７）（２９）（３１）の２条挾持部の合流バネ（７０）（７２）（７３）の巻数を、４条挾持部の合流バネ（７６）の巻数よりも多く形成し、合流バネ（７０）（７２）（７３）（７６）の巻数で搬送チェン（２７）（２９）（３１）との挾持力を設定し、合流バネ（７０）（７２）（７３）（７６）を形成する金属線材料を同一にして異なるバネ力に形成でき、合流バネ（７０）（７２）（７３）（７６）力の設定並びに加工の簡略化などを行えるように構成している。
【００１４】
さらに、図１０、図１１、図１２に示す如く、前記刈取２軸（４４）を内挿させる刈取フレーム（１２）に筒体（８０）を立設固定させ、刈取２軸（４４）に連結させる上部駆動軸（８１）を筒体（８０）に内挿させ、後上部搬送タイン（３４）ケースに前記筒体（８０）及び駆動軸（８１）中間部を貫通させ、タイン（３４）上方に筒体（８０）及び駆動軸（８１）を延設させ、右上部搬送タイン（２８）のケース（８２）を筒体（８０）上端にブラケット（８３）（８４）を介して着脱自在にボルト（８５）（８５）止め固定させると共に、前記ケース（８２）のボス（８２ａ）に上駆動軸（８６）を軸支させ、該軸（８６）にスプロケット（８７）を介して右上部搬送タイン（２８）のタインチェン（８８）を張設させ、前記各軸（８１）（８６）を上下に分離自在にスプライン（８９）嵌合連結させ、また筒体（８０）上端をボス（８２ａ）下端に着脱自在に嵌入させ、後上部搬送タイン（３４）送り始端部上側に右上部搬送タイン（２８）送り終端部を重合せるように配設させるもので、前記各ブラケット（８３）（８４）の分解によってタイン（２８）をケース（８２）に組込んだ状態で取外せるように構成している。
【００１５】
上記のように、前後に分割形成する前後搬送部材である右上部搬送タイン（２８）と後上部搬送タイン（３４）によって刈取り穀稈を脱穀部（４）に送給するコンバインにおいて、右上部搬送タイン（２８）送り終端を後上部搬送タイン（３４）送り始端上側に重合せて設け、右上部搬送タイン（２８）の駆動軸（８１）中間を後上部搬送タイン（３４）に貫通させ、前記各搬送タイン（２８）（３４）の受継部を上下に重合せかつ右上部搬送タイン（２８）の送り終端に駆動軸（８１）を設ける構造で前記受継部長さを必要以上に長く確保でき、各搬送タイン（２８）（３４）の取扱い作業性向上並びに穀稈受継ぎ機能の向上などを図ると共に、右上部搬送タイン（２８）と後上部搬送タイン（３４）の間で右上部搬送タイン（２８）の駆動軸（８１）（８６）を上下に分割形成し、前記駆動軸（８１）（８６）を上下に分離させることにより、右上部搬送タイン（２８）を分解することなく取外すことができ、下方側の後上部搬送タイン（３４）の保守または修理などの作業性向上を図れるように構成している。
【００１６】
さらに、図１３に示す如く、後上部搬送タイン（３４）のケース（９０）に合成樹脂製タインガイド（９１）（９１）を鉄板製補強板（９２）（９２）によって固定させ、前記タイン（３４）を各タインガイド（９１）（９１）によって両持ち支持し、タイン（３４）が倒れたり脱落するのを防ぐと共に、タイン（３４）にピン孔（９３）を貫通させ、ピン孔（９３）にピン（９４）を打込んでタインチェン（９５）に連結させ、タイン（３４）を取付けるピン（９４）が抜け落ちるのを防ぐように構成している。
【００１７】
さらに、図１４、図１５に示す如く、前記刈取１軸（４３）を内挿させる昇降支点パイプ（９６）左端にギヤケース（９７）を介して補助搬送後チェン（３６）を取付け、補助搬送前チェン（３５）とフィードチェン（５）の間で前後方向に後チェン（３６）を延設させ、フィードチェン（５）に略平行に後チェン（３６）を張設させ、前チェン（３５）搬送中間に後チェン（３６）始端を配置させ、後チェン（３６）搬送中間にフィードチェン（５）始端を配置させると共に、前記引起駆動パイプ（３７）に挾扼フレーム（９８）前端部を固定させ、後チェン（３６）上側搬送部に上方から当接させる棒状受継ガイド（９９）前端を前記フレーム（９８）後端の軸受（１００）に回転自在に軸支させ、前記ガイド（９９）後端側を上下に回動自在に取付け、前記フレーム（９８）にボルト（１０１）を介して一端を連結させる挾扼バネ（１０２）他端を前記ガイド（９９）に連結させ、挾扼バネ（１０２）力を調節自在に形成し、また前記ガイド（９９）後端側を後チェン（３６）に弾圧させて穀稈を挾持搬送する一方、前記ガイド（９９）を上方に持上げることによって挾扼バネ（１０２）が支点越え作用し、ガイド（９９）を上方に展開支持して後チェン（３６）の藁屑除去などを行うように構成している。
【００１８】
また、板バネ製株ガイド（１０３）及び棒状ガイド（１０４）の各前端を前記フレーム（９８）に取付け、各ガイド（１０３）（１０４）後端側をフィードチェン（５）上側の始端搬送面に上方から接離自在に弾圧させ、フィードチェン（５）と各ガイド（１０３）（１０４）間に穀稈を挾持して搬送させるもので、前記受継ガイド（９９）と株ガイド（１０３）の各後端を略同一長さ位置とし、各ガイド（９９）（１０３）後端よりも後方に前記ガイド（１０４）後端を延設させると共に、棒状受ガイド（１０５）の一端を補助搬送前チェン（３５）の下面に固定させ、後チェン（３６）前部を介してフィードチェン（５）前部に受ガイド（１０５）他端側を延設させ、前チェン（３５）及び各ガイド（９９）（１０３）（１０４）の下方側でこれらに対して斜交させて受ガイド（１０５）を取付け、前チェン（３５）から後チェン（３６）を介してフィードチェン（５）に搬送される穀稈株元の下方側折曲りを受ガイド（１０５）によって規制するように構成している。
【００１９】
上記のように、刈取部（８）の終端搬送部材である補助搬送前チェン（３５）からフィードチェン（５）に穀稈を受渡す受継搬送部材である補助搬送後チェン（３６）を設け、刈取部（８）からフィードチェン（５）に送給させる穀稈の受継性能を向上させ、穀稈量が多くなる大型構造でもフィードチェン（５）始端部で穀稈が脱落したり稈姿勢が乱れるのを防ぐと共に、前記の前チェン（３５）下面に稈ガイド部材である受ガイド（１０５）の一端側を固定させ、後チェン（３６）の始端側を介してフィードチェン（５）始端側に前記受ガイド（１０５）の他端側を延設させ、前チェン（３５）からフィードチェン（５）に至る搬送空間を徐々に拡大させて穀稈をスムーズに搬送移動させ、後チェン（３６）とフィードチェン（５）によって同一穀稈を引き合って稈姿勢が乱れるのを防止するように構成している。
【００２０】
また、後チェン（３６）を刈取部（８）の昇降支点である昇降支点パイプ（９６）に設け、後チェン（３６）とフィードチェン（５）の相対位置を常に略一定に保って穀稈の搬送を安定して行わせると共に、後チェン（３６）の挾扼ガイド部材である受継ガイド（９９）を刈取部（８）側から延設させ、刈取部（８）が上昇しても前チェン（３５）と後チェン（３６）間の穀稈搬送をスムーズに行わせると共に、後チェン（３６）に受継ガイド（９９）を挾扼バネ（１０２）を介して接離自在に取付け、挾扼バネ（１０２）力の変更により受継ガイド（９９）の挾扼力を変更させると共に、挾扼バネ（１０２）の支点越え位置に受継ガイド（９９）を後退させて掃除等の簡略化を行えるように構成している。
【００２１】
上記から明らかなように、脱穀部（４）に対する穀稈供給搬送装置を、刈取部（８）側に設けた穀稈搬送機構（１０）から刈取穀稈を受取る前側供給搬送チェンである補助搬送後チェン（３６）と、該補助搬送後チェン（３６）から前記刈取穀稈を受け取って機体後方に搬送する主供給搬送チェンであるフィードチェン（５）とに形成し、前記補助搬送後チェン（３６）は、その始端部を前記穀稈搬送機構（１０）の株元側搬送装置である補助搬送前チェン（３５）の終端部近傍に臨ませ、かつ、前記フィードチェン（５）の始端側部に臨んで重合するように構成するコンバインにおいて、前記補助搬送後チェン（３６）の内側にギヤボックスであるギヤケース（９７）を設け、前記ギヤケース（９７）は前記刈取部（８）を支持する支持架台である昇降支点パイプ（９６）に固定させる。そして、フィードチェン（５）前側での稈こぼれまたは搬送乱れを低減させ、しかも藁屑の巻付き防止またはメンテナンス作業の簡略化などを行い、機体のコンパクト化または取扱い操作性の向上などを図り、しかも前記昇降支点パイプ（９６）に設けることにより刈取部（８）に対するギヤケース（９７）の位置決めが容易かつ正確になり、補助搬送後チェン（３６）の取付け精度を向上させ、また昇降支点パイプ（９６）自体が堅牢構造であるから、充分な支持強度を確保し、ギヤケース（９７）または補助搬送後チェン（３６）の着脱またはメンテナンス等を容易にする。
【００２２】
また、前記ギヤケース（９７）には片持状態に取付ける前記補助搬送後チェン（３６）への回転軸を軸装させ、ギヤケース（９７）を補助搬送後チェン（３６）に対して内側に簡単にオフセットさせ、機体のコンパクト化または搬送穀稈の干渉防止または藁屑の巻き付き防止またはメンテナンスの簡略化などを、コストを上昇させずに実施し、脱穀部（４）の扱口下方にギヤケース（９７）を位置させて空間の有効利用により機体全体をコンパクトに構成する。
【００２３】
また、補助搬送後チェン（３６）の受継ガイド（９９）を、フィードチェン（５）の短い側と長い側の２本の株ガイド（１０３）及び棒状ガイド（１０４）よりも内方側で高い位置に設け、フィードチェン（５）の短い側の株ガイド（１０３）を他のガイド（９９）（１０４）よりも外方側で低い位置に設け、フィードチェン（５）の長い側の棒状ガイド（１０４）を他の２本のガイド（９９）（１０３）の間に設け、補助搬送前チェン（３５）からの穀稈をスムーズに受継ぎ得るように前記チェン（５）（３６）及びガイド（９９）（１０３）（１０４）を配置させ、前チェン（３５）からの穀稈を上下方向に殆んど折曲させることなく後チェン（３６）及びフィードチェン（５）に移行させ、稈こぼれまたは搬送姿勢乱れ等を低減させると共に、受継ガイド（９９）及び株ガイド（１０３）及び棒状ガイド（１０４）の下方側で交叉させる方向に受ガイド（１０５）を設け、前記搬送後チェン（３６）及びフィードチェン（５）の前側を結ぶ直線と略平行に受ガイド（１０５）を延設させて穀稈の下側を支持させ、各チェン（５）（３６）前側で穀稈が下方に折曲するのを阻止し、稈こぼれまたは乱れを低減させてスムーズに受継がせ、受継ぎ部での稈詰り等を防止する。
【００２４】
さらに、図１６、図１７に示す如く、前記刈取２軸（４４）を内挿させる刈取フレーム（１２）に減速ギヤケース（１０６）を固定させ、電動扱深モータ（１０７）をケース（１０６）に取付け、該ケース（１０６）の出力軸（１０８）に扱深アーム（１０９）を固定させ、該アーム（１０９）にロッド（１１０）を介して縦搬送チェン（３３）を連結させ、前記モータ（１０７）によってアーム（１０９）を揺動させ、前記チェン（３３）送り始端側入力部を支点にしてチェン（３３）送り終端側を補助搬送前チェン（３５）に対して接離させ、フィードチェン（５）が挾持搬送する穀稈の扱深さを調節するように構成している。また、前記アーム（１０９）のボス（１１１）を出力軸（１０８）のスリ割り面（１１２）にボルト（１１３）止め固定させると共に、前記チェン（３３）の扱深さ調節位置を検出するポテンショメータ形扱深位置センサ（１１４）を前記ケース（１０６）にブラケット（１１５）を介して固定させ、前記ボス（１１１）に固定させるセンサアーム（１１６）を前記センサ（１１４）の回転アーム（１１７）に当接させ、前記扱深アーム（１０９）と連動して回転アーム（１１７）を揺動させるもので、前記ボルト（１１３）の固定によってセンサ（１１４）の誤検出を防ぐと共に、センサ（１１４）の出力を非直線形に形成し、短稈側及び長稈側の前記チェン（３３）調節移動量を標準稈長部位に比べて大きくし、長稈側扱深調節による穀稈脱落防止などを行えるように構成している。
【００２５】
さらに、図１８、図１９に示す如く、前記刈取部（８）左側面を閉塞するサイドカバー（１１８）を設け、サイドカバー（１１８）前端縁に支点パイプ（１１９）を固定させると共に、前記刈取フレーム（１２）に固定させるカバーフレーム（１２０）にブラケット（１２２）を介して支点ピン（１２１）下端側を固定させ、支点ピン（１２１）上端側を支点パイプ（１１９）に下方から挿入させ、支点パイプ（１１９）と支点ピン（１２１）を緩く嵌合させ、カバー（１１８）前端縁と略同一方向に傾斜させた支点ピン（１２１）回りに回動自在にカバー（１１８）を取付ける。また、前記カバーフレーム（１２０）にストッパピン（１２３）下端を立設固定させ、ストッパピン（１２３）上端側を乗り越えて移動する係合ピン（１２４）を支点パイプ（１１９）に固定させると共に、刈取フレーム（１２）に固定させる筒体（１２５）にフックアーム（１２６）一端側を回転自在に取付け、フックアーム（１２６）他端側を係脱自在に係止させるフック板（１２７）をカバー（１１８）に固定させ、支点ピン（１２１）回りにカバー（１１８）を機外側方向に回転させて刈取部（８）左側を開放したとき、ストッパピン（１２３）上端を乗り越えて係合ピン（１２４）が移動し、係合ピン（１２４）がストッパピン（１２４）に当接し、かつフック板（１２７）にフックアーム（１２６）が係止し、カバー（１１８）を開放位置に支持するもので、支点パイプ（１１９）と支点ピン（１２１）の緩やかな嵌合によりカバー（１１８）開閉時の上下移動を小さな操作力で行えると共に、カバー（１１８）開閉構造の簡略化並びに重量低減及び製造コスト低減などを図れるように構成している。
【００２６】
【発明の効果】
本発明では、補助搬送後チェンの上側搬送部に上方から棒状受継ガイドを接離自在に弾圧させて穀稈を挟持搬送すると共に、フィードチェンの上側の始端搬送面に上方から棒状ガイドを接離自在に弾圧させて穀稈を挟持搬送するようにし、かつ、棒状受継ガイドは、棒状ガイドよりも内方側で高い位置に設けているため、補助搬送前チェンからの穀稈を、上下方向に殆ど折曲させることなく補助搬送後チェン及びフィードチェンに移行させることができて、稈こぼれまたは搬送姿勢乱れ等を低減させることができる。
また、本発明では、補助搬送前チェンの下面に棒状受ガイドの一端を固定させると共に、補助搬送後チェン前部を介してフィードチェン前部に棒状受ガイド他端側を延設させ、しかも、棒状受ガイドは、補助搬送前チェン及び前記各ガイドの下方側でこれらに対して斜交させて取付けている。
このようにして、棒状受ガイドは、終端搬送部材及び前記各ガイドの下方側でこれらに対して斜交させて取付けているため、同棒状受ガイドによって、終端搬送部材から受継搬送部材を介してフィードチェンに搬送される穀稈株元の下方側折曲りを規制することができる。
しかも、受継搬送部材の始端側を介してフィードチェン始端側に前記棒状受ガイドの他端側を延設させているため、終端搬送部材からフィードチェンに至る搬送空間を徐々に拡大させて穀稈をスムーズに搬送移動させることができて、受継搬送部材とフィードチェンによって同一穀稈を引き合って稈姿勢が乱れるのを防止することができる。
【図面の簡単な説明】
【図１】コンバインの全体側面図。
【図２】コンバインの全体平面図。
【図３】刈取部の側面説明図。
【図４】刈取部の平面説明図。
【図５】刈取部駆動系統図。
【図６】引起し変速部の説明図。
【図７】引起ケース正面説明図。
【図８】同断面説明図。
【図９】下部搬送チェン部の平面図。
【図１０】上部搬送タイン部の駆動説明図。
【図１１】同拡大図。
【図１２】上部搬送タインの平面図。
【図１３】同合流部の説明図。
【図１４】補助搬送前後チェン部の側面図。
【図１５】同平面図。
【図１６】扱深モータ取付部の側面図。
【図１７】同正面図。
【図１８】サイドカバー取付部の側面図。
【図１９】同平面図。
【符号の説明】
（４）脱穀部
（５）フィードチェン（主供給搬送チェン）
（８）刈取部
（３５）補助搬送前チェン（株元側搬送装置）
（３６）補助搬送後チェン（前側供給搬送チェン）
（９６）昇降支点パイプ（支持架台）
（９７）ギヤケース（ギヤボックス）[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a combine that continuously harvests and thresh cereals.
[0002]
[Problems to be solved by the invention]
Conventionally, when the amount of cereals to be fed to the feed chain is increased due to an increase in the size of the cutting part, for example, for 5 or 6 reaping, the cereal inheritance posture is disturbed at the start end of the feed chain, or the cereal is easily dropped. There are problems such as.
[0003]
[Means for Solving the Problems]
Therefore, in the present invention, a vertical conveying chain that inherits and conveys the stock side of the harvested cereal cocoon, a rear upper conveyance tine that conveys the tip side of the harvested cereal cocoon to the threshing portion, and the vertical conveying chain. Provided at the feed end portion and provided with a chain before auxiliary conveyance and a chain after auxiliary conveyance for transferring and conveying the harvested cereal rice cake in an appropriate posture to the feed chain, and providing a gear box inside the chain after the auxiliary conveyance, and the gear box Is fixed to a support frame that supports the mowing unit, and is attached to the gear box in a cantilevered state. The rod-shaped inheritance guide is squeezed and conveyed from the upper side of the feed chain, and the rod guide is squeezed and conveyed from the upper side to the upper end conveying surface of the feed chain. And manner, and bar-shaped taking over guide provided at a position higher in the inner side of the bar-shaped guide, with fixing the one end of the bar-shaped receiving guide on the lower surface of the front auxiliary conveying chain, via the chain front post auxiliary conveyor The other end side of the bar-shaped receiving guide is extended at the front part of the feed chain, and the bar-shaped receiving guide is attached obliquely to the lower side of the chain before the auxiliary conveyance and each guide. Combines are provided.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is an overall side view of a combine, FIG. 2 is a plan view thereof, in which (1) is a track frame for mounting a traveling crawler (2), and (3) is a machine installed on the track frame (1). A threshing unit, (4) is a threshing machine that stretches the feed chain (5) to the left and incorporates a handling cylinder (6) and a processing cylinder (7), (8) is a cutting blade (9) and A reaping part equipped with a grain culm transport mechanism (10), (11) is a hydraulic reaping cylinder that raises and lowers the reaping part (8) via the reaping frame (12), and (13) is facing the end of the reject chain (14). (15) is a grain tank that carries the grain from the threshing section (4) through the milling cylinder (16), and (17) carries the grain from the tank (15) outside the machine. A discharge auger (18) is a driving cabin provided with a driving operation part (19) and a driver seat (20), ( 1) is an engine provided with the operating cabin (18) downward, and configured to threshing continuously harvests culms.
[0006]
Further, as shown in FIG. 3 and FIG. 4, a pulling case (24) for six strips having a pulling tine (23) for raising an uncut grain culm taken in through a weed board (22). 6 pieces of starfoil (25) ... and a take-up belt (26) ... for scraping the stocked side of the cereals produced, a cutting blade (9) for cutting the stocked cereal stocks, and the right side 2 Lower right transport chain (27) and upper right transport tine (28) for transporting the chopped cereals to the left diagonally backward, and right lower transport chain (27) and upper right for the middle two chopped cereals Central lower conveyance chain (29) and central upper conveyance tine (30) to be merged in the vicinity of the feed intermediate position of the partial conveyance tine (28), and the right lower conveyance chain (27) and the upper right portion Lower left transfer chain (31 to be merged in the vicinity of the feed end position of the transfer body (28) And the upper left conveying tine (32), the vertical conveying chain (33) for inheriting and conveying the stock side of the harvested cereals for six merging lines that join the feeding end of the lower right conveying chain (27), and the upper right Rear upper transport tine (34) for transporting the tip side of the harvested cereals for six lines that join the feed end of the section transport tine (28) to the threshing section (4), and the feed end of the vertical transport chain (33) The auxiliary chain before feeding (35) and the post-auxiliary chain (36) for transferring and harvesting the harvested cereal rice cake to the feed chain (5) in an appropriate posture are provided in the cutting part (8) for 6-row cutting. Provided, and the harvested cereals for 6 lines are joined to the vertical conveying chain (33) and supplied to the feed chain (5) for threshing treatment.
[0007]
Further, a pulling drive pipe (37) is erected on the mowing frame (12), and a pulling drive case (38) is attached to the upper end of the pipe (37), and two sets are formed through the case (38). The drive force is transmitted to each pulling case (24), and the pulling conveyance tine (39) is attached to the pulling drive case (38). These tines (39) are configured to be inherited by the rear tines (28), (30) and (32).
[0008]
Further, as shown in FIG. 5, the driving force of the engine (21) is transmitted to the input shaft (41) of the counter case (40), and the handling cylinder (6) of the threshing section (4) is transmitted through the counter case (40). The threshing driving force is transmitted to each part, and the traveling driving force is transmitted from the counter case (40) to the transmission case (42) that drives the left and right traveling crawlers (2) and (2). Further, the constant speed driving force from the counter case (40) and the vehicle speed synchronized driving force from the transmission case (42) are transmitted to the cutting 1 axis (43), and the cutting 2 axis (44) is connected to the 1 axis (43). The three cutting shafts (45) are connected to each other, and the pulling shaft (47) is connected to the three shafts (45) via the pulling input shaft (46).
[0009]
Then, the auxiliary post-carrying chain (36) is driven through the cutting one shaft (43), and the star belts (25) and (25) corresponding to the right two strips are driven into the drive belts (26) and (26). The transfer chain (27), the transfer tine (28), the vertical transfer chain (33), the rear upper transfer tine (34), and the auxiliary transfer front chain (35) are driven through the cutting two shafts (44). Further, the right and left cutting blade input shafts (48) and (48) are connected to the three cutting shafts (45) to drive the left and right cutting blades (9) and (9) divided into left and right, respectively, and the middle and left four strips are driven. The minute star wheel (25) ... and the take-in belt (26) ..., the middle and left conveying chains (29), (31) and the conveying tines (30), (32) are connected via the pulling input shaft (46). To drive. Further, each pulling tine (23) for the six strips and three pulling conveyance tines (39) are driven via the pulling shaft (47), and the constant speed of the counter case (40) is increased. While the minimum speed is maintained by the driving force, each part of the cutting unit (8) is driven at a speed synchronized with the traveling speed by the vehicle speed synchronized driving force of the mission case (42).
[0010]
Further, as shown in FIG. 6, a pulling speed change case (49) is attached to the pulling drive pipe (37), and a standard gear (50) is connected between the high speed gear (50) and the low speed gear (51) on the pulling input shaft (46). 52), the high-speed transmission gear (53) and the low-speed transmission gear (54) are always meshed with the respective gears (50) (51), and the dog clutch claw (55) is engaged with the switching gear (55) meshed with the standard gear (52). 56) (57) is provided, and dog clutch claws (58) (59) for engaging the respective claws (56) (57) are provided on the respective gears (53) (54) and are connected to the pulling shaft (47). A shift fork (61) for sliding the switching gear (55) on the transmission shaft (60) is provided on the shift shaft (62). ) To connect the elevating speed change lever (63) Since the speed is changed in the order of high speed and standard and low speed, the speed change operability is improved as compared with the conventional structure in which the speed between the high speed and the standard speed is low, and the high speed gear (50) and the low speed gear (51) are half-engaged. The case (49) is made compact by eliminating insufficient strength due to biting, preventing damage to the gears (50) (51), and transmitting power by engaging the claws (56) (57) (58) (59). It is configured so that it can be formed.
[0011]
Further, as shown in FIGS. 7 and 8, a tine chain (65) is stretched inside the pulling case (24) via a drive sprocket (64) and the like, and a plurality of pulling tines (23) are provided on the chain (65). Are attached at equal intervals, and the upper, middle, and lower tine guides (66), (67), and (68) made of synthetic resin are fixed to the pulling case (24), and the tine guides (66), (67), and (68) are The erecting tine (23) is supported upright, and the steel plate reinforcing plate (69) is fixed to the case (24) inside the middle tine guide (67) having the largest culm pulling force, and the tine of the middle tine guide (67) is fixed. (23) The support strength is improved by the reinforcing plate (69) to prevent the deformation of the middle tine guide (67), and the case (24) is improved in strength by the reinforcing plate (69), so that the opening of the case (24) is deformed. Prevention And, also constitute a molding resin thickness of the middle tine guide (67) thinned in to allow the processability accuracy and manufacturing cost.
[0012]
Further, as shown in FIG. 9, the middle lower transport chain (29) end is connected to the middle of the lower right transport chain (27), and the left lower transport chain (31) end is connected to the right lower transport chain (27) end. After the middle 2 cereals are joined to the right 2 cereals in the middle of the chain (27), the left 2 cereals are joined to the right 4 cereals at the end of the chain (27). And the other end of the chain (27) is pressed against one end of the chain (27), and the other end is fixed to the machine with a bolt (71). The other end of the chain (29) (31) is fixed to the end of the chain (27), and the other end of the double spring (72) (73) is fixed to the machine side with bolts (74) (75). The other end of the four-joint spring (76) that presses the side is fixed to the machine with a bolt (77). Further, the two-wire joining springs (70), (72), and (73) are formed by winding the middle two times, and the four-way joining spring (76) is wound and formed by one winding. The springs (70), (72), (73), and (76) are formed by the above, and the four-joint spring (76) force is formed larger than the two-joint springs (70), (72), and (73) force. (29) The distal end of the spring winding prevention guide (78) is elastically pressed against the chain (27) between the springs (70) and (76), and the distal end of the chain (31) spring winding prevention guide (79). Is extended in the locus of the chain (27) behind the spring (76).
[0013]
As described above, in the combine that joins and connects the plurality of transport chains (27), (29), and (31) that transport the harvested cereal rice cake in the C shape, the combined spring (76) force on the chain (27) feed end side Is increased, the combined spring (70) force on the chain (27) feed start end side is formed small, and the combined spring (70) force is lowered in a place where the number of corn ridges to be conveyed is small, and the number of corn ridges is large. The merging spring (76) force is raised at the place, the grain holding force of the conveying chains (27) (29) (31) and the merging springs (70) (76) is properly maintained, and the stagnation of the cereals at the merging portion is prevented. The joint springs (70), (72), (73), (76) that prevent and smoothly carry back and convey, and fix one end to the machine and elastically press the other end to the transfer chains (27), (29), and (31). ) Form the middle winding and transfer chain (27) (29) 31) The number of turns of the joining springs (70), (72), and (73) of the two-line holding part is larger than the number of turns of the joining spring (76) of the four-way holding part, and the joining springs (70), (72) ( 73) and (76) are set with the number of turns of the conveying chain (27) (29) (31), and the metal wire material forming the merging springs (70) (72) (73) (76) is made the same. The springs can be formed with different spring forces, and can be configured to set the merging springs (70), (72), (73), and (76), simplify the processing, and the like.
[0014]
Further, as shown in FIGS. 10, 11 and 12, the cylinder (80) is vertically fixed to the cutting frame (12) for inserting the cutting two shafts (44) and connected to the cutting two shafts (44). The upper drive shaft (81) to be inserted is inserted into the cylinder (80), the intermediate portion of the cylinder (80) and the drive shaft (81) is passed through the rear upper transfer tine (34) case, and the upper part of the tine (34) The cylinder (80) and the drive shaft (81) are extended to the top, and the case (82) of the upper right transport tine (28) is detachably attached to the upper end of the cylinder (80) via brackets (83) (84). The upper drive shaft (86) is pivotally supported by the boss (82a) of the case (82), and the upper right shaft is conveyed to the shaft (86) via the sprocket (87). The tine chain (88) of the tine (28) is stretched and the shafts (8 ) (86) is separably connected to the spline (89) so as to be separated vertically, and the upper end of the cylinder (80) is detachably fitted to the lower end of the boss (82a), and the upper rear conveying tine (34) is fed to the upper side of the feed start end. The upper right transport tine (28) is disposed so as to overlap the feed end, and the tine (28) is assembled in the case (82) by disassembling the brackets (83) (84). It is configured to be removable.
[0015]
In the combine that feeds the harvested cereal to the threshing section (4) by the upper right transport tine (28) and the rear upper transport tine (34), which are front and rear transport members divided into front and rear as described above, the upper right transport The tine (28) feed end is overlapped with the upper upper transport tine (34) feed upper end, and the drive shaft (81) middle of the upper right transport tine (28) is passed through the rear upper transport tine (34), In the structure in which the transfer portions of each transfer tine (28) (34) are superposed vertically and the drive shaft (81) is provided at the feed end of the upper right transfer tine (28), the transfer portion length can be secured longer than necessary, The handling operability of each conveyance tine (28) (34) is improved and the cereal transfer function is improved, and the upper right conveyance tine (between the upper right conveyance tine (28) and the rear upper conveyance tine (34)). 28) By dividing the shafts (81) and (86) into upper and lower parts and separating the drive shafts (81) and (86) into upper and lower parts, the upper right transport tine (28) can be removed without disassembling the lower side. It is configured to improve workability such as maintenance or repair of the rear upper transfer tine (34).
[0016]
Further, as shown in FIG. 13, synthetic resin tine guides (91) (91) are fixed to the case (90) of the rear upper transport tine (34) by the steel plate reinforcing plates (92) (92), and the tine ( 34) is supported by both tine guides (91) and (91) to prevent the tine (34) from falling over or falling off, and the pin hole (93) is passed through the tine (34), thereby the pin hole (93 ) Is inserted into the tine chain (95) to prevent the pin (94) for attaching the tine (34) from falling off.
[0017]
Further, as shown in FIGS. 14 and 15, a chain (36) after auxiliary conveyance is attached via a gear case (97) to the left end of the lifting fulcrum pipe (96) for inserting the cutting shaft (43), before auxiliary conveyance. A rear chain (36) is extended in the front-rear direction between the chain (35) and the feed chain (5), and the rear chain (36) is stretched substantially parallel to the feed chain (5). The start end of the rear chain (36) is arranged in the middle of the conveyance, the start end of the feed chain (5) is arranged in the middle of the rear chain (36), and the front end of the eaves frame (98) is fixed to the pulling drive pipe (37). The front end of the rod-shaped transfer guide (99) that is brought into contact with the upper conveying portion of the rear chain (36) from above is rotatably supported by the bearing (100) at the rear end of the frame (98), and the rear of the guide (99). Turn the end side up and down The spring (102) is connected to the frame (98) via a bolt (101) and the other end is connected to the guide (99) so that the force of the spring (102) can be adjusted. In addition, the rear end side of the guide (99) is pressed against the rear chain (36) to hold and convey the cereal, while the guide (99) is lifted upward to support the heel spring (102). The guide (99) is unfolded and supported upward, and the rear chain (36) is debris removed.
[0018]
Further, the front ends of the leaf spring stock guide (103) and the rod-shaped guide (104) are attached to the frame (98), and the rear end side of each guide (103) (104) is the starting end conveying surface above the feed chain (5). To the top and bottom of the feed chain (5) and the guides (103) (104). The rear ends of the guides (104) are extended to the rear of the rear ends of the guides (99) and (103), and one end of the rod-shaped receiving guide (105) is connected to the rear end of the guide (99) before the auxiliary conveyance. The lower end of the chain (35) is fixed, and the other end side of the receiving guide (105) is extended to the front part of the feed chain (5) through the front part of the rear chain (36), and the front chain (35) and each guide ( 99) Below (103) (104) Attach the receiving guide (105) at an angle to the above, and fold down the lower side of the cereal stock that is conveyed from the front chain (35) to the feed chain (5) via the rear chain (36). It is configured to be regulated by the receiving guide (105).
[0019]
As described above, the auxiliary post-carrying chain (36) that is a transfer carrying member that delivers the cereals from the pre-auxiliary chain (35) that is the terminal conveying member of the cutting unit (8) to the feed chain (5), Improves the inheritance performance of the cereals to be fed from the cutting part (8) to the feed chain (5), and even in a large structure where the amount of cereals increases, the cereals fall off at the starting end of the feed chain (5) In addition to preventing disturbance, one end side of the receiving guide (105), which is a saddle guide member, is fixed to the lower surface of the front chain (35), and the feed chain (5) starting end side via the starting end side of the rear chain (36) The other end side of the receiving guide (105) is extended to gradually expand the conveyance space from the front chain (35) to the feed chain (5) to smoothly convey and move the cereal, and the rear chain (36 ) And feed chain (5) And attracted to the same culms are configured to prevent 稈姿 vigor disturbed.
[0020]
Further, the rear chain (36) is provided on the lifting fulcrum pipe (96) which is the lifting fulcrum of the cutting part (8), and the relative position between the rear chain (36) and the feed chain (5) is always kept substantially constant. The transfer guide (99), which is a rod guide member of the rear chain (36), is extended from the cutting part (8) side so that the rear chain (36) is moved forward. The rice cake is smoothly transferred between the chain (35) and the rear chain (36), and the inheritance guide (99) is attached to the rear chain (36) via the hook spring (102) so as to be freely connected and separated. Changing the repellent spring (102) force changes the repulsive force of the inheritance guide (99), and retracts the inheritance guide (99) to a position beyond the fulcrum of the resilient spring (102) to simplify cleaning and the like. It is configured as follows.
[0021]
As is apparent from the above, the auxiliary transport that is the front supply transport chain that receives the harvested cereal from the cereal transport mechanism (10) provided on the reaping part (8) side with respect to the threshing supply and transport device for the threshing part (4) A rear chain (36) and a feed chain (5), which is a main supply transport chain that receives the harvested cereal meal from the post-auxiliary post-chain (36) and transports it to the rear of the machine body. 36) has its starting end faced in the vicinity of the terminal end of the auxiliary transfer front chain (35) which is the stock source side transfer device of the cereal haul transfer mechanism (10), and the start end side of the feed chain (5) In the combine that is configured to be superposed on the part, a gear case (97) that is a gear box is provided inside the chain (36) after the auxiliary conveyance, and the gear case (97) supports the cutting part (8). Support rack In it is fixed to the lifting pivot pipe (96). And reducing spillage or turbulence on the front side of the feed chain (5), preventing swarf wrapping or simplifying maintenance work, etc., aiming to make the machine compact or improve handling operability, Moreover, by providing the lift fulcrum pipe (96), the gear case (97) can be easily and accurately positioned with respect to the cutting part (8), the mounting accuracy of the chain (36) after auxiliary conveyance is improved, and the lift fulcrum pipe ( 96) Since the structure itself is robust, sufficient support strength is secured, and attachment / detachment or maintenance of the gear case (97) or the chain (36) after auxiliary conveyance is facilitated.
[0022]
Further, the gear case (97) is provided with a rotating shaft to the post-auxiliary post-transfer chain (36) attached in a cantilever state, and the gear case (97) can be easily set inward with respect to the post-auxiliary post-transfer chain (36). Offsetting is performed to reduce the size of the fuselage, prevent interference with the transporting culm, prevent winding of swarf, or simplify maintenance without increasing the cost. The gear case (97 ) And make the entire aircraft compact by using space effectively.
[0023]
In addition, the transfer guide (99) of the chain (36) after the auxiliary conveyance is higher on the inner side than the two stock guides (103) and the rod-shaped guide (104) on the short side and the long side of the feed chain (5). The stock guide (103) on the short side of the feed chain (5) is provided at a lower position on the outer side than the other guides (99) (104), and the rod-shaped guide on the long side of the feed chain (5) (104) is provided between the other two guides (99) and (103), and the chain (5) (36) and the guides can be smoothly passed over the cereals from the chain (35) before auxiliary conveyance. (99) (103) (104) are arranged, and the cereals from the front chain (35) are transferred to the rear chain (36) and the feed chain (5) without being bent in the vertical direction. Reduce spillage or transport posture disorder In both cases, a receiving guide (105) is provided in a direction crossing the lower side of the transfer guide (99), the stock guide (103) and the rod-shaped guide (104), and the front side of the post-conveying chain (36) and the feed chain (5). The receiving guide (105) is extended substantially parallel to the straight line connecting the two to support the lower side of the cereal, and the cereal is prevented from bending downward at the front side of each chain (5) (36). Reduces spillage or turbulence and allows smooth inheritance to prevent clogging at the joint.
[0024]
Further, as shown in FIGS. 16 and 17, a reduction gear case (106) is fixed to a cutting frame (12) into which the two cutting shafts (44) are inserted, and the electric handling motor (107) is fixed to the case (106). Attach and fix the handling arm (109) to the output shaft (108) of the case (106), and connect the vertical conveying chain (33) to the arm (109) via the rod (110). 107), the arm (109) is swung, and the chain (33) feed end side is brought into contact with and separated from the chain (35) before the auxiliary conveyance with the input portion on the start side of the chain (33) as a fulcrum. (5) is configured to adjust the handling depth of the cereal straw that is held and conveyed. A potentiometer for fixing the boss (111) of the arm (109) to the slit surface (112) of the output shaft (108) with a bolt (113) and detecting the adjustment depth of the chain (33). A sensor arm (116) that fixes the shape handling position sensor (114) to the case (106) via a bracket (115) and is fixed to the boss (111) is a rotating arm (117) of the sensor (114). And the rotating arm (117) is swung in conjunction with the handling depth arm (109). By fixing the bolt (113), erroneous detection of the sensor (114) is prevented and the sensor (114 ) In a non-linear form, and the adjustment movement amount of the chain (33) on the short heel side and the long heel side is larger than that of the standard cocoon length part, and the grain is adjusted by adjusting the long heel side handling depth. It is configured so as to enable and dropout prevention.
[0025]
Further, as shown in FIGS. 18 and 19, a side cover (118) for closing the left side of the cutting part (8) is provided, and a fulcrum pipe (119) is fixed to the front edge of the side cover (118), and the cutting The lower end side of the fulcrum pin (121) is fixed to the cover frame (120) to be fixed to the frame (12) via the bracket (122), and the upper end side of the fulcrum pin (121) is inserted into the fulcrum pipe (119) from below, The fulcrum pipe (119) and the fulcrum pin (121) are loosely fitted, and the cover (118) is attached so as to be rotatable around the fulcrum pin (121) inclined in substantially the same direction as the front edge of the cover (118). In addition, the lower end of the stopper pin (123) is fixed upright on the cover frame (120), the engaging pin (124) that moves over the upper end side of the stopper pin (123) is fixed to the fulcrum pipe (119), and One end of the hook arm (126) is rotatably attached to the cylinder (125) to be fixed to the cutting frame (12), and the hook plate (127) for engaging and disengaging the other end of the hook arm (126) is covered. (118), when the cover (118) is rotated around the fulcrum pin (121) toward the outside of the machine to open the left side of the cutting part (8), the upper end of the stopper pin (123) is overcome and the engagement pin ( 124) moves, the engaging pin (124) abuts on the stopper pin (124), and the hook arm (126) engages with the hook plate (127), and the cover (118) Supporting in the open position, the fulcrum pipe (119) and the fulcrum pin (121) can be loosely fitted to move the cover (118) up and down with a small operating force, and the cover (118) opening / closing structure is simplified. And a reduction in weight and manufacturing cost.
[0026]
【The invention's effect】
In the present invention, after the auxiliary conveyance, the rod-shaped inheritance guide is pressed and released from the upper side to the upper conveyance portion of the chain so as to be held and separated, and the cereals are clamped and conveyed, and the bar-shaped guide is contacted and separated from the upper side on the upper end conveyance surface of the feed chain. The rod-shaped inheritance guide is clamped and conveyed freely, and the rod-shaped inheritance guide is provided at a higher position on the inner side than the rod-shaped guide. It is possible to shift to a post-auxiliary chain and a feed chain with almost no bending, and it is possible to reduce spillage or conveyance posture disorder.
Further, in the present invention, one end of the rod-shaped receiving guide is fixed to the lower surface of the chain before auxiliary conveyance, and the other end side of the rod-shaped receiving guide is extended to the front of the feed chain via the front portion of the chain after auxiliary conveyance, The rod-shaped receiving guide is attached obliquely to the chain before the auxiliary conveyance and below each guide.
In this way, the rod-shaped receiving guide is attached obliquely to the terminal conveying member and the lower side of each of the guides, so that the rod-shaped receiving guide passes from the terminal conveying member through the inherited conveying member. It is possible to regulate the downward bending of the cereal stock that is conveyed to the feed chain.
Moreover, since the other end side of the rod-shaped receiving guide is extended to the feed chain starting end side through the starting end side of the transfer conveying member, the conveying space from the terminal conveying member to the feed chain is gradually expanded to increase the grain Can be transported smoothly, and it is possible to prevent the wrinkle posture from being disturbed by attracting the same culm by the inherited transport member and the feed chain.
[Brief description of the drawings]
FIG. 1 is an overall side view of a combine.
FIG. 2 is an overall plan view of the combine.
FIG. 3 is an explanatory side view of a cutting part.
FIG. 4 is an explanatory plan view of a cutting part.
FIG. 5 is a diagram of a cutting unit drive system.
FIG. 6 is an explanatory diagram of a pulling speed change unit.
FIG. 7 is a front explanatory view of a pulling case.
FIG. 8 is an explanatory view of the same cross section.
FIG. 9 is a plan view of a lower conveyance chain unit.
FIG. 10 is a diagram illustrating driving of the upper transport tine unit.
FIG. 11 is an enlarged view of the same.
FIG. 12 is a plan view of an upper transport tine.
FIG. 13 is an explanatory diagram of the joint portion.
FIG. 14 is a side view of an auxiliary conveyance front and rear chain unit.
FIG. 15 is a plan view of the same.
FIG. 16 is a side view of the handling depth motor mounting portion.
FIG. 17 is a front view of the same.
FIG. 18 is a side view of a side cover attaching portion.
FIG. 19 is a plan view of the same.
[Explanation of symbols]
(4) Threshing section (5) Feed chain (main supply transport chain)
(8) Cutting part (35) Chain before auxiliary transport (stock-side transport device)
(36) Chain after auxiliary transfer (front supply transfer chain)
(96) Lifting fulcrum pipe (support frame)
(97) Gear case (gear box)

Claims

A vertical transfer chain (33) for transferring and conveying the stock side of the harvested cereal to the harvesting part (8), and a rear upper transfer tine (34) for transferring the tip side of the harvested cereal to the threshing part (4) The auxiliary transfer chain (35) and the auxiliary transfer post chain (36) are provided at the feed end of the vertical transfer chain (33) to transfer the harvested cereal rice cake in an appropriate posture to the feed chain (5). ,
A gear box (97) is provided inside the chain (36) after the auxiliary conveyance, and the gear box (97) is fixed to a support frame (96) that supports the cutting part (8), and the gear box (97 ) In a combine mounted with a rotating shaft to the post-auxiliary post-transfer chain (36) attached in a cantilever state,
After the auxiliary conveyance, the rod-shaped inheritance guide (99) is pressed from the upper side to the upper conveyance part of the chain (36) so as to be able to come into contact with and separated from the upper side, and the cereals are nipped and conveyed, and the upper end conveying surface on the upper side of the feed chain (5) The rod-shaped guide (104) is squeezed and removably pressed so as to sandwich and convey the cereal, and the rod-shaped transfer guide (99) is provided at a higher position on the inner side than the rod-shaped guide (104) ,
One end of a rod-shaped receiving guide (105) is fixed to the lower surface of the chain (35) before the auxiliary conveyance, and a rod-shaped receiving guide (105) at the front of the feed chain (5) via the front portion of the chain (36) after the auxiliary conveyance. Extend the other side,
Moreover, the combine is characterized in that the rod-shaped receiving guide (105) is attached obliquely to the lower side of the pre-auxiliary transfer chain (35) and the guides (99) (104) .