【０００１】
【発明の属する技術分野】
本発明は、コンバインに関するものである。
【０００２】
【従来の技術】
従来より、コンバインには、刈取穀稈の株元側を挾持して穂先側を脱穀装置に挿入した状態で後送する単一の穀稈供給搬送装置（１本のフィ−ドチェン）が設けられている。
【０００３】
そして、この穀稈供給搬送装置の始端部は、刈取部側に設けた株元搬送装置の終端部近傍に臨んで配置されている。
【０００４】
【発明が解決しようとする課題】
５条刈用、６条刈用など、刈取部の大型化により穀稈供給搬送装置に引き継がれる刈取穀稈量が多くなると、穀稈供給搬送装置の始端部で穀稈引継姿勢が乱れたり、穀稈が脱落し易くなって、刈取脱穀作業を円滑に行うことができなくなる問題がある。
【０００５】
【課題を解決するための手段】
本発明は、上述の如き課題を解決するために次のような技術的手段を講じる。
即ち、脱穀装置３に対する穀稈供給搬送装置を、刈取部４側に設けた株元搬送装置１７から刈取穀稈を受け取る前側供給搬送チェン８０と、該前側供給搬送チェン８０から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３２とから構成し、前記前側供給搬送チェン８０は、その始端部を前記株元搬送装置１７の終端部近傍に臨ませて前記主供給搬送チェン３２の始端部内側に側面視において重合するように配置し、該前側供給搬送チェン８０の内側に該前側供給搬送チェン８０を駆動するギヤケ−ス５６を配置するにあたり、前記脱穀装置３の前側には該脱穀装置３へ動力伝達する軸を内装すると共に脱穀装置３に固定した伝動ケース設け、該伝動ケースの供給搬送チェン３２側には脱穀装置へ出力する出力プーリ５９を設け、前記ギヤケ−ス５６と伝動ケースとの間を支持部材４２で連結したことを特徴とするコンバインとしたものである。
【０００６】
即ち、前側供給搬送チェン８０を主供給搬送チェン３２の始端部内側に配置することにより、該前側供給搬送チェン８０の引継搬送作用によって、刈取穀稈が刈取部４側の株元搬送装置１７から主供給搬送チェン３２へ引き継がれる際に、穀稈の引継姿勢が乱れにくく、また、穀稈が脱落しにくくなる。
【０００７】
また、前側供給搬送チェン８０の内側に該前側供給搬送チェン８０を駆動するギヤケ−ス５６を配置することにより、前側供給搬送チェン８０によって搬送される穀稈の株元側が該ギヤケ−ス５６に干渉しにくくなり、穀稈の搬送が円滑に行われる。
【０００８】
また、仮に前側供給搬送チェン８０を駆動するギヤケ−ス５６を刈取部４側に支持させると、支持強度の点で不利である上に、刈取部４の刈高さ調節によって該ギヤケ−ス５６も昇降し、前側供給搬送チェン８０の姿勢が変化して刈取穀稈の引き継ぎ搬送を円滑に行うことができなくなるのであるが、本発明においては、脱穀装置３の前側には脱穀装置３へ動力伝達する軸を内装すると共に脱穀装置３に固定した伝動ケース設け、この伝動ケースの供給搬送チェン３２側には脱穀装置へ出力する出力プーリ５９を設け、ギヤケ−ス５６と伝動ケースとの間を支持部材４２で連結しているため、該ギヤケ−ス５６の支持強度が高まる上に、刈取部４を刈高さ調節してもギヤケ−ス５６の位置は変化せず、前側供給搬送チェン８０の姿勢が適正姿勢に保持されて刈取穀稈の引き継ぎ搬送が良好に行われる。
【０００９】
【発明の効果】
本発明によると、前側供給搬送チェン８０を主供給搬送チェン３２の始端部内側に配置することにより、該前側供給搬送チェン８０の引継搬送作用によって、刈取穀稈が刈取部４側の後側株元搬送装置１７から主供給搬送チェン３２へ引き継がれる際に、穀稈の引継姿勢が乱れにくく、また、穀稈が脱落しにくくなり、刈取穀稈量の多い大型の刈取部を備えたコンバインにおいても刈取脱穀作業を円滑に行うことができる。
【００１０】
また、前側供給搬送チェン８０の内側に該前側供給搬送チェン８０を駆動するギヤケ−ス５６を配置することにより、前側供給搬送チェン８０によって搬送される穀稈の株元側が該ギヤケ−ス５６に干渉しにくくなり、穀稈の搬送が円滑に行われて、刈取穀稈量の多い大型の刈取部を備えたコンバインにおいても刈取脱穀作業を円滑に行うことができる。
【００１１】
また、仮に前側供給搬送チェン８０を駆動するギヤケ−ス５６を刈取部４側に支持させると、支持強度の点で不利である上に、刈取部４の刈高さ調節によって該ギヤケ−ス５６も昇降し、前側供給搬送チェン８０の姿勢が変化して刈取穀稈の引き継ぎ搬送を円滑に行うことができなくなるのであるが、本発明においては、脱穀装置３の前側には脱穀装置３へ動力伝達する軸を内装すると共に脱穀装置３に固定した伝動ケース設け、この伝動ケースの供給搬送チェン３２側には脱穀装置へ出力する出力プーリ５９を設け、ギヤケ−ス５６と伝動ケースとの間を支持部材４２で連結しているため、該ギヤケ−ス５６の支持強度が高まる上に、刈取部４を刈高さ調節してもギヤケ−ス５６の位置は変化せず、前側供給搬送チェン８０の姿勢を適正姿勢に保持して刈取穀稈の引き継ぎ搬送状態を良好なものとし、コンバインによる刈取脱穀作業を円滑に行うことができる。
【００１２】
【発明の実施の形態】
本発明の実施の形態を図により説明すると、１はコンバインの機体フレーム、２は機体フレーム１の下方に設けた走行装置、３は機体フレーム１の上方に設けた脱穀装置、４は機体フレーム１の前方に設けた刈取部、５は前記刈取部４の分草体、６は引起装置、７は掻込装置、８は刈刃、９は前側株元搬送装置、１０は前側穂先搬送装置、１１は後側集束装置、１２は刈取部フレームである。刈取部４は、刈取部フレーム１２に支持パイプ１３の下部を固定し、支持パイプ１３の基部に固定の横筒１４を機体側に設けた支持台１５の上部に回動自在に取付ける。横筒１４および支持パイプ１３内のそれぞれには前記刈取部４に動力を伝達する伝動軸等を内蔵させている。１６は刈取上下シリンダ、１７は刈取部４で刈取った穀稈を後方の脱穀装置３に向かって搬送する後側株元搬送装置（株元搬送装置）、１８は後側穂先搬送装置であり、これらは、公知の構成で、前記後側株元搬送装置１７は搬送チエン１９と該搬送チエン１９の近傍に対向させて設けた挾扼杆２０とにより構成される。図示は省略するが、前記搬送チエン１９は、案内レールと該案内レールを取付けたフレームに設けた縦軸回転の複数の案内ローラに掛け回され、前記フレームの基部を前記支持パイプ１３の上部の横筒１４側に回動自在に取付けることにより前記各前側株元搬送装置９および前側穂先搬送装置１０の終端の引継点に臨む搬送チエン１９の始端部が上下するようにし、もって前記脱穀装置３に供給する扱深さを調節自在に構成されている。２１は扱深さ調節装置、２２は稈長検出スイッチである。
【００１３】
前記後側穂先搬送装置１８は搬送ラグ２３を起伏自在に取付けたチエンをケース２４内の縦軸回転の駆動機構に巻回し、ケース２４の基部を支持パイプ１３の上部の横筒１４側に回動自在に取付ける。２５は取付アーム、２６は取付部材、２７は前記後側穂先搬送装置１８の案内ガイドである。３０は前記脱穀装置３の脱穀室３１に穀稈を供給する穀稈供給装置であり、供給搬送チエン（主供給搬送チェン）３２と挾扼杆３３により構成される。挾扼杆３３は脱穀装置３の上部カバー３４の側縁に取付けられ、上部カバー３４を上方に開放させるとこれに伴なって上動するようにしている。前記供給搬送チエン３２は前後方向の案内レール３５の始端部に設けた受動歯車３６と終端部に設けた駆動歯車３７との間に掛け回され、前記案内レール３５の始端部側に設けた縦柱３８の下部を支持フレーム３９に回動自在に取付けている。即ち、穀稈供給装置３０は、前記縦柱３８を中心に終端部が側方に回動するように構成する。支持フレーム３９は下部を前記機体フレーム１に固定し、上側は屈曲させて脱穀装置３の前板に固定する。４０は側部カバーであり、側部カバー４０は前記案内レール３５側に取付けられ、側部カバー４０と案内レール３５は一体的に外側回動するように構成している。
【００１４】
４３はエンジン、４４は前記支持台１５を取付けた前記走行装置２に動力を伝達するミッションケース、４５はミッションケース４４に設けた油圧式無段主変速装置、４６は前記横筒１４に設けた刈取部入力プーリであり、刈取部入力プーリ４６には走行装置２のミッションケース４４へ至る伝動経路とは分岐した油圧式無段主変速装置４５からの伝動経路により回転が伝達され、走行装置２の走行速度と刈取部４の作業速度とを共に最適な速度に変速している。４７はエンジン４３のエンジン出力プーリ、４８は油圧式無段主変速装置４５に設けたエンジン出力受動プーリ、４９はベルト、５０は油圧式無段主変速装置４５とミッションケース４４の間に設けたギヤボックス、５１は軸受、５２はギヤボックス５０と軸受５１の間に設けた後述する刈取部変速装置、５３、５４はプーリ、５５はベルト、５６はギヤケース、５７は刈取部出力プーリ、５８はベルト、５９は前記脱穀装置３へ出力する出力プーリである。
【００１５】
前記刈取部変速装置５２は、ベルト６２と駆動割プーリ６３と受動割プーリ６４とにより構成され、駆動割プーリ６３および受動割プーリ６４はそれぞれカム体６５、６６により幅を広狭に調節して有効直径を変更して無段変速するが、カム体６５、６６は互いに反対に作用するように構成し、それぞれにはアーム６７を設け、各アーム６７をロッド６８により連結し、ロッド６８をモータ６９により移動するロッド７０により移動させる。７１はロッド７０の基部に設けたコマ、７２はコマ７１を螺合させた前記モータ６９により回転するネジ軸、７３は前記コマ７１の回り止めガイドである。
【００１６】
刈取部変速装置５２は走行装置２の走行速度に対して刈取部４の作業速度を独自に変速させ、倒伏穀稈の刈取作業のときは刈取部４の作業速度を早くさせる。なお、刈取部変速装置刈取部変速装置５２により刈取部４の作業速度を独自に変更するだけでなく、前記ミッションケース４４内の副変速装置により変速される走行装置２の走行速度に刈取部４の作業速度を対応させる構成とすることも可能である。そして、前記受動割プーリ６４は、その回転軸７４を一方向回転伝達クラッチ（ワンウェイクラッチ）７５を介して軸受５１に取付け、前記油圧式無段主変速装置４５が逆回転を伝達するとき、この逆回転を刈取部４に伝達しないように構成している。
【００１７】
しかして、後側株元搬送装置１７および後側穂先搬送装置１８の終端部と前記穀稈供給装置３０の搬送チエン３２の始端部の間には引継搬送装置７６を設ける。引継搬送装置７６は前記支持フレーム３９にチエン案内レール７７の中間部を取付け、チエン案内レール７７の前後両端に一対の横軸回転の受動歯車７８、７８を取付け、該受動歯車７８、７８に引継搬送チエン（前側供給搬送チェン）８０を掛け回す。８１は別途設けた案内歯車であり、テンション歯車を兼用する。そして、引継搬送チエン８０には前記ギヤケース５６より突出す回転軸８２に固定の駆動歯車８３を噛合わせる。したがって、引継搬送装置７６の搬送速度も油圧式無段主変速装置４５により走行装置２の走行速度と比例して変速され、また、前記刈取部変速装置５２により刈取部４の作業速度に同調して変速される。なお、穀稈供給装置３０は、エンジン４３の一定回転が常時伝達されているので、搬送速度は一定である。しかして、前記引継搬送チエン８０の始端部は、後側株元搬送装置１７の搬送チエン１９の終端部下方に臨ませ、引継搬送チエン８０の上方位置には案内ガイド８５を設ける。案内ガイド８５は、その始端部は後側株元搬送装置１７および後側穂先搬送装置１８の終端部近傍に臨ませ、終端部は引継搬送チエン８０の始端部の上方に望ませ、かつ、引継搬送チエン８０の始端部上方に位置する作用位置と、引継搬送チエン８０の始端部上方より離れた退避位置との間移動自在に構成し、穀稈を案内するだけでなく、メンテナンスも容易に行えるようにしている。案内ガイド８５は、具体的には、穀稈の搬送方向と平行（前後方向）の軸部材により形成し、案内ガイド８５の始端部は穀稈の搬送方向と交差する方向に屈曲させて屈曲部に形成し、該屈曲部を前記後側穂先搬送装置１８の案内ガイド２７の取付部材２６の終端部に回転自在かつ搬送方向と交差する方向に摺動自在に取付け、案内ガイド８５は引継搬送チエン８０の始端部上方に位置するようにバネにより付勢している。
【００１８】
図１２は、前記刈取部４の作業速度と、後側株元搬送装置１７と後側穂先搬送装置１８および引継搬送装置７６の搬送速度と、走行装置２の走行速度を制御する制御機構を示し、前記扱深さ調節装置２１に設けた稈長検出スイッチ２２と、前記ミッションケース４４に設けた車速センサ８６と、前記油圧式無段主変速装置４５の主変速操作レバー８７の位置検知センサ（ポテンショメータ）８８と、刈取クラッチ操作レバー８９の入切検知スイッチ９０のそれぞれによりあつめられたデータにより前記刈取部変速装置５２のモータ６９を制御している。
【００１９】
また、穀稈供給装置３０の搬送速度Ａと、引継搬送装置７６の搬送速度Ｂと、後側株元搬送装置１７および後側穂先搬送装置１８の搬送速度Ｃとは、Ａ＜Ｂ＜Ｃの関係にすることもある。即ち、後側株元搬送装置１７および後側穂先搬送装置１８の搬送速度Ｃの最高速度と穀稈供給装置３０の搬送速度Ａ（一定速度）との中間付近に引継搬送装置７６の搬送速度Ｂの最高速度を設定している。図中、９２は扱胴、９３は扱網、９４は排藁搬送装置、９５は脱穀装置３の後部に設けた結束装置またはカッタを有する排藁処理部、９６はグレンタンク、９７はロック装置である。
【００２０】
次に作用を述べる。本発明の実施の形態は以上の構成であり、エンジン４３を始動させると、この回転が油圧式無段主変速装置４５に伝達され、運転席の操作レバー８７の操作により油圧式無段主変速装置４５が回転数を無段階に変速して走行装置２のミッションケース４４に伝達して機体を前進させ、他方、ミッションケース４４から刈取部入力プーリ４６に伝達されて刈取部４の各部を作動させ、分草体５により分草し、分草された穀稈を引起装置６により引起し、引起した穀稈を掻込装置７により掻込みながら根元側を刈刃８により切断し、刈取られた穀稈の根元側は前側株元搬送装置９により穂先側は前側穂先搬送装置１０により引継点まで搬送され、引継点まで搬送された穀稈の株元は後側株元搬送装置１７の縦軸回転の歯車と回転する搬送チエン１９と挾扼杆２０により挾持搬送され、穂先側は案内ガイド２７により案内されて後側穂先搬送装置１８の搬送ラグ２３により搬送される。
【００２１】
そして、後側株元搬送装置１７および後側穂先搬送装置１８の終端部で、横軸回転の受動歯車７８に掛け回された引継搬送装置７６の引継搬送チエン８０と該引継搬送チエン８０の上方の案内ガイド８５の間に引継ぎ、引継搬送装置７６は穀稈供給装置３０の供給搬送チエン３２に引継いて脱穀装置３の脱穀室３１に供給し、回転する扱胴９２により脱穀し、脱穀物を選別して機外に取出し、脱穀済の排藁は排藁搬送装置９４により排藁処理部９５に搬送して処理する。前記の場合、穀稈は後側株元搬送装置１７および後側穂先搬送装置１８の終端部では起立状態であるが、案内ガイド２７により案内されて横倒しにされながら横軸回転の引継搬送チエン８０に引継ぐので、穀稈の搬送姿勢の乱れがなく、そのまま、穀稈を横倒し状態の最終姿勢で穀稈供給装置３０の供給搬送チエン３２に引継ぐので、穀稈の落下を防止して引継を確実にする。また、引継搬送装置７６が穀稈供給装置３０の供給搬送チエン３２と平行であって、かつ内側に位置しているから、側面視重合させることができて、引継が確実となるだけでなく、特に短穀稈の搬送が確実となる。また、引継搬送装置７６の引継搬送チエン８０の始端部は、後側株元搬送装置１７の終端部下方に臨ませ、また、穀稈供給装置３０の供給搬送チエン３２の始端部は引継搬送チエン８０の終端部下方に臨ませているから、各引継部における引継は良好に行われる。
【００２２】
前記引継搬送チエン８０の駆動歯車８３は、前後の受動歯車７８の間の側部に設けたギヤケース５６より突出する回転軸８２に設けているから、駆動歯車８３と前後の受動歯車７８とのそれぞれの位置関係を正確に配置することができ、確実に作動させる。また、ギヤケース５６の入力プーリ５４の部分にクラッチ４１を設けているので、刈取部４を停止させると引継搬送装置７６も停止し、またスタートの同調もなされて引継が良好となり、穀稈の搬送姿勢も良好となる。また、ギヤケース５６はステー（支持部材）４２により脱穀装置３の前板に固定しているから、引継搬送装置７６と後側株元搬送装置１７および後側穂先搬送装置１８と穀稈供給装置３０との位置関係も固定でき、作動が確実となる。
【００２３】
そして、油圧式無段主変速装置４５により走行装置２を停止させると刈取部４および引継搬送装置７６は停止するので、作業が確実となり操作性が向上し、また、ミッションケース４４内の副変速装置により機体を停止させたときは、油圧式無段主変速装置４５から刈取部４および引継搬送装置７６に回転を伝達しているので、刈取部４等により搬送途中の穀稈を脱穀装置３に供給できる。しかして、油圧式無段主変速装置４５は逆回転をミッションケース４４に伝達するが、刈取部変速装置５２の受動割プーリ６４は一方向回転伝達クラッチ７５を介して軸受５１に取付けた回転軸７４取付けているので、刈取部４および引継搬送装置７６等に逆回転が伝達されるのを防止している。このとき、回転軸７４は軸受５１に設けた一方向回転伝達クラッチ７５に取付けているので、メンテナンスを容易に行なえる。
【００２４】
しかして、圃場の穀稈が倒伏状態の場合は、走行速度に対して刈取部４の作業速度が遅いと、充分に倒伏穀稈を引上げることができないことがあるが、刈取部変速装置５２を作動させることにより刈取部４へ伝達する回転を上昇させると、確実に作業が行なえる。
【００２５】
即ち、通常は、油圧式無段主変速装置４５により走行装置２と刈取部４は比例して変速されるが、刈取部変速装置５２により独自に刈取部４の作業速度と後側株元搬送装置１７、後側穂先搬送装置１８および株引継搬送装置７６の搬送速度を変更して穀稈の状態に応じた作業速度を選択できる。
【００２６】
この場合、穀稈供給装置３０の搬送速度Ａと、引継搬送装置７６の搬送速度Ｂと、後側株元搬送装置１７および後側穂先搬送装置１８の搬送速度Ｃとは、Ａ＜Ｂ＜Ｃの関係にすると、後側株元搬送装置１７および後側穂先搬送装置１８から引継搬送装置７６への引継ぎで減速され、引継搬送装置７６から穀稈供給装置３０への引継ぎで減速され、穀稈供給装置３０に向けて搬送されるに従い穀稈の量が多くなって厚くなり、搬送速度も次第に遅くなるので搬送姿勢が良好となる。
【００２７】
即ち、刈取部変速装置５２を作動させることにより刈取部４へ伝達する回転を上昇させて倒伏穀稈の作業が確実容易となるばかりでなく、これに対応して後側搬送装置１７、１８および株元引継搬送装置７６の搬送速度を変更して確実に搬送できるという効果を奏する。
【００２８】
しかして、前記穀稈供給装置３０は、脱穀装置の上部カバー３４を持ち上げて挾扼杆３３を上動させて供給搬送チエン３２の上面を開放し、次に、駆動歯車３７への伝動の接続を外し、案内レール３５の終端と機体側とを固定するロック装置９７のロックを解除してから、縦柱３８中心に案内レール３５の終端部を外側回動させて、穀稈供給装置３０および脱穀装置３の脱穀室３１のメンテナンスを行なう。
【図面の簡単な説明】
【図１】本発明の説明図。
【図２】公知例の説明図。
【図３】側面図。
【図４】平面図。
【図５】側面図。
【図６】変速装置の側面図。
【図７】側面図。
【図８】部分斜視図。
【図９】斜視図。
【図１０】伝動機構の概略図。
【図１１】平面図。
【図１２】制御機構図。
【図１３】他の実施例の説明図。
【図１４】同作用状態説明図。
【符号の説明】
１ 機体フレ−ム
３ 脱穀装置
４ 刈取部
１７ 後側株元搬送装置（株元搬送装置）
３２ 搬送チェン（主供給搬送チェン）
４２ ステ−（支持部材）
５６ ギヤケ−ス
５９ 出力プーリ
８０ 引継搬送チェン（前側供給搬送チェン）[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a combine.
[0002]
[Prior art]
Conventionally, a combine is provided with a single corn straw supply and transport device (one feed chain) that holds the cutting stock side of the harvested cereal and feeds it with the tip side inserted into the threshing device. ing.
[0003]
And the starting end part of this cereal supply and conveyance apparatus is arrange | positioned facing the terminal part vicinity of the stock former conveyance apparatus provided in the cutting part side.
[0004]
[Problems to be solved by the invention]
When the amount of harvested cereals to be transferred to the cereal supply / conveyance device increases due to the enlargement of the harvesting part, such as for 5-row reaping, for 6-row reaping, the cereal takeover posture is disturbed at the starting end of the cereal supply / conveyance device, There is a problem that the cereals easily fall off and the mowing and threshing work cannot be performed smoothly.
[0005]
[Means for Solving the Problems]
The present invention takes the following technical means to solve the above-described problems.
That is, the cereal supply transport device for the threshing device 3 is received by the front supply transport chain 80 that receives the harvested cereal mash from the stock source transport device 17 provided on the cutting unit 4 side, and the cereal supply is received from the front supply transport chain 80. The front supply transport chain 80 is configured to be transported to the rear of the machine body, and the front supply transport chain 80 has its start end facing the vicinity of the terminal end of the stock transport apparatus 17 and the start end of the main supply transport chain 32. When the gear case 56 that drives the front supply / transport chain 80 is disposed inside the front supply / transport chain 80, the threshing device 3 is disposed on the front side of the threshing device 3. A transmission case is provided that has a shaft that transmits power to the device 3 and is fixed to the threshing device 3, and an output pulley 59 that outputs to the threshing device is provided on the supply conveyance chain 32 side of the transmission case. Serial Giyake - is obtained by the combined, characterized in that the connection between the scan 56 and the transmission case by the support member 42.
[0006]
That is, by arranging the front supply conveyance chain 80 inside the start end portion of the main supply conveyance chain 32, the harvested cereal meal is separated from the stock transportation device 17 on the cutting portion 4 side by the takeover conveyance action of the front supply conveyance chain 80. When handed over to the main supply transport chain 32, the takeover posture of the cereal is less likely to be disturbed, and the cereal is less likely to fall off.
[0007]
Further, by arranging the gear case 56 for driving the front supply / transport chain 80 on the inner side of the front supply / transport chain 80, the stock side of the cereals conveyed by the front supply / transport chain 80 is connected to the gear case 56. It becomes difficult to interfere, and the cereals are transported smoothly.
[0008]
Further, if the gear case 56 that drives the front supply / conveying chain 80 is supported on the cutting part 4 side, it is disadvantageous in terms of support strength, and the gear case 56 is adjusted by adjusting the cutting height of the cutting part 4. However, in the present invention, the power to the threshing device 3 is provided on the front side of the threshing device 3 in the present invention. A transmission case is provided that has a shaft for transmission and is fixed to the threshing device 3, and an output pulley 59 that outputs to the threshing device is provided on the supply conveyance chain 32 side of the transmission case, and between the gear case 56 and the transmission case. Since the gear member 56 is connected by the support member 42, the support strength of the gear case 56 is increased, and the position of the gear case 56 does not change even when the cutting height of the cutting unit 4 is adjusted. The right attitude It is held by the reaper takeover conveying of culms to be satisfactorily performed.
[0009]
【The invention's effect】
According to the present invention, the front supply conveyance chain 80 is arranged inside the start end portion of the main supply conveyance chain 32, so that the harvested cereal rice bran is separated from the rear portion of the cutting part 4 side by the takeover conveyance action of the front supply conveyance chain 80. In a combine equipped with a large reaping section with a large amount of chopped cereal, the cereal taking over posture is less likely to be disturbed when it is handed over from the original transport device 17 to the main supply transport chain 32. Also, mowing and threshing can be performed smoothly.
[0010]
Further, by arranging the gear case 56 for driving the front supply / transport chain 80 on the inner side of the front supply / transport chain 80, the stock side of the cereals conveyed by the front supply / transport chain 80 is connected to the gear case 56. It becomes difficult to interfere with each other, the grain mash is transported smoothly, and the harvesting and threshing work can be performed smoothly even in a combine equipped with a large reaping section with a large amount of chopped corn.
[0011]
Further, if the gear case 56 that drives the front supply / conveying chain 80 is supported on the cutting part 4 side, it is disadvantageous in terms of support strength, and the gear case 56 is adjusted by adjusting the cutting height of the cutting part 4. However, in the present invention, the power to the threshing device 3 is provided on the front side of the threshing device 3 in the present invention. A transmission case is provided that has a shaft for transmission and is fixed to the threshing device 3, and an output pulley 59 that outputs to the threshing device is provided on the supply conveyance chain 32 side of the transmission case, and between the gear case 56 and the transmission case. Since the gear member 56 is connected by the support member 42, the support strength of the gear case 56 is increased, and the position of the gear case 56 does not change even when the cutting height of the cutting unit 4 is adjusted. Appropriate posture The takeover conveying state of holding to reaper culms and favorable, it is possible to smoothly perform the threshing work reaper by combine on.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 represents a combiner body frame, 2 a traveling device provided below the body frame 1, 3 a threshing device provided above the body frame 1, and 4 an aircraft frame 1. , 5 is the weeding body of the cutting unit 4, 6 is a pulling device, 7 is a scraping device, 8 is a cutting blade, 9 is a front side stock transport device, 10 is a front side tip transport device, 11 Is a rear focusing device, and 12 is a cutting part frame. The mowing unit 4 fixes the lower part of the support pipe 13 to the mowing part frame 12, and a horizontal cylinder 14 fixed to the base part of the support pipe 13 is rotatably attached to an upper part of a support base 15 provided on the machine body side. Each of the horizontal cylinder 14 and the support pipe 13 incorporates a transmission shaft or the like for transmitting power to the mowing unit 4. 16 is a cutting upper and lower cylinder, 17 is a rear stock transport device (stock transport device) that transports the cereals harvested by the cutting unit 4 toward the rear threshing device 3, and 18 is a rear head transport device. These are known configurations, and the rear stock transporting device 17 includes a transport chain 19 and a gutter 20 provided in the vicinity of the transport chain 19 so as to face each other. Although not shown in the drawings, the transport chain 19 is hung around a guide rail and a plurality of guide rollers rotating on a vertical axis provided on the frame to which the guide rail is attached, and the base of the frame is placed on the upper portion of the support pipe 13. By attaching it to the horizontal cylinder 14 so as to be rotatable, the threshing device 3 is arranged so that the starting end of the transfer chain 19 facing the takeover point at the end of each of the front side stock transfer device 9 and the front tip transfer device 10 moves up and down. It is configured so that the handling depth supplied to the can be adjusted. 21 is a handle depth adjusting device, and 22 is a saddle length detection switch.
[0013]
The rear-side tip transport device 18 winds a chain with a transport lug 23 attached thereto so as to be able to move up and down, and rotates the base of the case 24 toward the horizontal cylinder 14 on the upper side of the support pipe 13. Mount freely. Reference numeral 25 denotes an attachment arm, 26 denotes an attachment member, and 27 denotes a guide guide for the rear tip conveying device 18. 30 is a cereal supply device for supplying cereal to the threshing chamber 31 of the threshing device 3, and includes a supply conveyance chain (main supply conveyance chain) 32 and a ridge 33. The eaves 33 are attached to the side edge of the upper cover 34 of the threshing device 3, and when the upper cover 34 is opened upward, it moves upward. The supply and transport chain 32 is hung between a passive gear 36 provided at the start end portion of the guide rail 35 in the front-rear direction and a drive gear 37 provided at the end portion, and is provided vertically on the start end side of the guide rail 35. A lower portion of the column 38 is rotatably attached to the support frame 39. That is, the cereal supply device 30 is configured such that the end portion rotates laterally around the vertical column 38. The lower part of the support frame 39 is fixed to the body frame 1, and the upper side is bent and fixed to the front plate of the threshing device 3. Reference numeral 40 denotes a side cover, and the side cover 40 is attached to the guide rail 35 side, and the side cover 40 and the guide rail 35 are configured to integrally rotate outward.
[0014]
43 is an engine, 44 is a transmission case that transmits power to the traveling device 2 to which the support base 15 is attached, 45 is a hydraulic continuously variable main transmission provided in the transmission case 44, and 46 is provided in the horizontal cylinder 14. This is a cutting part input pulley, and the rotation is transmitted to the cutting part input pulley 46 through a transmission path from the hydraulic continuously variable main transmission 45 that is branched from the transmission path to the transmission case 44 of the traveling apparatus 2. Both the traveling speed and the working speed of the cutting unit 4 are shifted to an optimum speed. 47 is an engine output pulley of the engine 43, 48 is an engine output passive pulley provided in the hydraulic continuously variable main transmission 45, 49 is a belt, 50 is provided between the hydraulic continuously variable main transmission 45 and the transmission case 44. A gear box, 51 is a bearing, 52 is a reaping part transmission described later provided between the gear box 50 and the bearing 51, 53 and 54 are pulleys, 55 is a belt, 56 is a gear case, 57 is a reaping part output pulley, and 58 is A belt 59 is an output pulley that outputs to the threshing device 3.
[0015]
The cutting part speed change device 52 includes a belt 62, a drive split pulley 63, and a passive split pulley 64. The drive split pulley 63 and the passive split pulley 64 are effective by adjusting the widths thereof by cam bodies 65 and 66, respectively. The cam bodies 65 and 66 are configured to act oppositely to each other, and each arm 67 is connected to each other by a rod 68, and the rod 68 is connected to a motor 69. It is moved by the rod 70 that moves. 71 is a frame provided at the base of the rod 70, 72 is a screw shaft that is rotated by the motor 69 with which the frame 71 is screwed, and 73 is a detent guide for the frame 71.
[0016]
The reaping part transmission 52 independently shifts the working speed of the reaping part 4 with respect to the traveling speed of the traveling device 2 and increases the working speed of the reaping part 4 during the harvesting of the fallen cereal. In addition, not only the working speed of the cutting unit 4 is independently changed by the cutting unit transmission unit 52 but also the cutting unit 4 is changed to the traveling speed of the traveling unit 2 that is shifted by the auxiliary transmission unit in the transmission case 44. It is also possible to adopt a configuration in which these work speeds are made to correspond. The passive split pulley 64 is attached to the bearing 51 through a one-way rotation transmission clutch (one-way clutch) 75, and when the hydraulic continuously variable main transmission 45 transmits reverse rotation, The reverse rotation is not transmitted to the cutting unit 4.
[0017]
Thus, a takeover conveying device 76 is provided between the terminal end of the rear stock transporting device 17 and the rear tip conveying device 18 and the starting end of the conveying chain 32 of the cereal supply device 30. The take-up and transfer device 76 has an intermediate portion of the chain guide rail 77 attached to the support frame 39, and a pair of laterally rotating passive gears 78 and 78 attached to the front and rear ends of the chain guide rail 77. The transfer chain (front supply transfer chain) 80 is wound around. 81 is a guide gear provided separately, which also serves as a tension gear. The take-up conveyance chain 80 is engaged with a fixed drive gear 83 on a rotary shaft 82 protruding from the gear case 56. Therefore, the transfer speed of the take-up transfer device 76 is also changed in proportion to the drive speed of the travel device 2 by the hydraulic continuously variable main transmission 45, and synchronized with the work speed of the cut portion 4 by the reaping portion transmission 52. To change the speed. In addition, since the constant rotation of the engine 43 is always transmitted, the conveyance speed is constant in the grain supply device 30. Thus, the start end of the takeover transport chain 80 faces the lower end of the transport chain 19 of the rear stock transporter 17, and a guide guide 85 is provided above the takeover transport chain 80. The guide guide 85 has its start end facing the vicinity of the end of the rear stock transport device 17 and the rear tip transport device 18, and the end is desired above the start end of the takeover transport chain 80 and is taken over. It is configured to be movable between an action position located above the start end of the transport chain 80 and a retreat position away from above the start end of the take-up transport chain 80, and not only guides the cereal but also facilitates maintenance. I am doing so. Specifically, the guide guide 85 is formed by a shaft member that is parallel (front-rear direction) to the conveying direction of the grain straw, and the start end portion of the guide guide 85 is bent in a direction intersecting with the grain conveying direction. The bent portion is attached to the terminal portion of the attachment member 26 of the guide guide 27 of the rear tip conveying device 18 so as to be rotatable and slidable in a direction crossing the conveying direction. It is biased by a spring so as to be positioned above the starting end portion of 80.
[0018]
FIG. 12 shows a control mechanism for controlling the working speed of the cutting unit 4, the transport speed of the rear stock transport apparatus 17, the rear tip transport apparatus 18 and the takeover transport apparatus 76, and the travel speed of the travel apparatus 2. , A saddle length detection switch 22 provided in the handling depth adjusting device 21, a vehicle speed sensor 86 provided in the transmission case 44, and a position detection sensor (potentiometer) of the main transmission operating lever 87 of the hydraulic continuously variable main transmission 45. ) 88 and the data collected by the on / off detection switch 90 of the cutting clutch operating lever 89 are used to control the motor 69 of the cutting unit transmission 52.
[0019]
Moreover, the conveyance speed A of the grain supply apparatus 30, the conveyance speed B of the takeover conveyance apparatus 76, and the conveyance speed C of the rear side stock conveyance apparatus 17 and the rear side tip conveyance apparatus 18 satisfy A <B <C. Sometimes it is a relationship. That is, the transfer speed B of the take-up transfer apparatus 76 is in the vicinity of the middle between the maximum speed of the transfer speed C of the rear side stock transfer apparatus 17 and the rear side tip transfer apparatus 18 and the transfer speed A (constant speed) of the cereal supply apparatus 30. The maximum speed is set. In the figure, 92 is a handling cylinder, 93 is a handling net, 94 is a waste transporting device, 95 is a waste disposal processing unit having a binding device or a cutter provided at the rear of the threshing device 3, 96 is a Glen tank, and 97 is a locking device. It is.
[0020]
Next, the operation will be described. The embodiment of the present invention has the above-described configuration. When the engine 43 is started, this rotation is transmitted to the hydraulic continuously variable main transmission 45, and the hydraulic continuously variable main transmission is operated by operating the operation lever 87 in the driver's seat. The device 45 changes the rotation speed steplessly and transmits it to the transmission case 44 of the traveling device 2 to advance the machine body. On the other hand, it is transmitted from the transmission case 44 to the cutting portion input pulley 46 to operate each portion of the cutting portion 4. The cereals were weeded by the weeding body 5, the cereals that were weeded were raised by the pulling device 6, and the root side was cut by the cutting blade 8 while being scraped by the scraping device 7, and was cut. The root side of the cereal is transported to the takeover point by the front side stock transport device 10 by the front side stock transport device 9, and the stock of the cereal that has been transported to the takeover point is the vertical axis of the rear side stock transport device 17. Rotating gear and rotating conveyor chain 1 And the 挾扼 rod 20 is clamped transported, the tip side is conveyed by the conveying lugs 23 of the guide has been rear tip conveying device 18 by guides 27.
[0021]
Then, at the terminal ends of the rear stock transport device 17 and the rear tip transport device 18, the takeover transport chain 80 of the takeover transport device 76 wound around the passive gear 78 rotating on the horizontal axis and above the takeover transport chain 80. Is taken over between the guide guides 85, the take-up conveying device 76 takes over the supply conveying chain 32 of the cereal supply device 30 and supplies it to the threshing chamber 31 of the threshing device 3, threshing by the rotating barrel 92, Sorted and taken out of the machine, the threshed waste is transported to the waste processing unit 95 by the waste transporting device 94 and processed. In this case, the cereal is in a standing state at the terminal ends of the rear stock transporting device 17 and the rear tip transporting device 18, but it is guided by the guide guide 27 and turned sideways while being turned sideways. Therefore, there is no disturbance in the posture of the cereal conveyance, and the cereal is laid sideways and taken over to the supply conveyance chain 32 of the cereal supply device 30 in the final posture. To. In addition, since the take-up conveyance device 76 is parallel to the supply conveyance chain 32 of the cereal supply device 30 and is located on the inner side, the side view polymerization can be performed, and not only the takeover is ensured, The transport of short grain rice cake is ensured. In addition, the start end of the takeover conveyance chain 80 of the takeover conveyance device 76 faces the lower end of the rear stock transporter 17 and the start end of the supply conveyance chain 32 of the cereal supply device 30 is the takeover conveyance chain. Since it faces under the terminal part of 80, the takeover in each takeover part is performed satisfactorily.
[0022]
Since the drive gear 83 of the take-up conveyance chain 80 is provided on the rotary shaft 82 protruding from the gear case 56 provided on the side portion between the front and rear passive gears 78, the drive gear 83 and the front and rear passive gears 78 respectively. It is possible to accurately arrange the positional relationship of and to operate reliably. Further, since the clutch 41 is provided at the input pulley 54 portion of the gear case 56, when the cutting unit 4 is stopped, the take-up conveying device 76 is also stopped, and the start-up is synchronized so that the take-over is good, and the corn straw carrying posture Will also be good. Further, since the gear case 56 is fixed to the front plate of the threshing device 3 by the stay (supporting member) 42, the takeover conveyance device 76, the rear stock transport device 17, the rear tip transport device 18, and the cereal supply device 30. Can be fixed, and the operation is reliable.
[0023]
Then, when the traveling device 2 is stopped by the hydraulic continuously variable main transmission 45, the cutting unit 4 and the take-over transport device 76 are stopped, so that the work is ensured and the operability is improved, and the sub-shift in the transmission case 44 is improved. When the machine is stopped by the device, the rotation is transmitted from the hydraulic continuously variable main transmission 45 to the harvesting unit 4 and the take-up conveying device 76, so that the threshing device 3 removes cereal grains that are being conveyed by the harvesting unit 4 or the like. Can supply. Thus, the hydraulic continuously variable main transmission 45 transmits the reverse rotation to the transmission case 44, but the passive split pulley 64 of the cutting part transmission 52 is a rotary shaft attached to the bearing 51 via the one-way rotation transmission clutch 75. Since 74 is attached, it is possible to prevent reverse rotation from being transmitted to the cutting unit 4 and the takeover conveyance device 76. At this time, since the rotating shaft 74 is attached to the one-way rotation transmission clutch 75 provided in the bearing 51, maintenance can be easily performed.
[0024]
Therefore, when the grain culm in the field is in the lying state, if the working speed of the cutting unit 4 is slow relative to the traveling speed, the lying grain culm may not be able to be pulled up sufficiently, but the cutting unit transmission 52 When the rotation transmitted to the mowing unit 4 is raised by operating the, the work can be performed reliably.
[0025]
That is, normally, the traveling device 2 and the cutting unit 4 are shifted in proportion by the hydraulic continuously variable main transmission 45, but the operating speed of the cutting unit 4 and the rear stock transport are independently set by the cutting unit transmission 52. The working speed according to the state of the cereal can be selected by changing the conveying speed of the apparatus 17, the rear tip conveying apparatus 18 and the stock transfer conveying apparatus 76.
[0026]
In this case, the transport speed A of the grain supply device 30, the transport speed B of the takeover transport device 76, and the transport speed C of the rear side stock transport device 17 and the rear tip transport device 18 are A <B <C. In this relationship, the speed is reduced by taking over from the rear stock transporter 17 and the rear tip transporter 18 to the takeover transport device 76, decelerated by the takeover from the takeover transport device 76 to the cereal supply device 30, and As the amount of the cereal increases as it is conveyed toward the supply device 30 and becomes thicker, and the conveyance speed gradually decreases, the conveyance posture is improved.
[0027]
That is, by operating the cutting part transmission device 52, the rotation transmitted to the cutting part 4 is raised so that the work of the overlaid cereals is made easy, and correspondingly, the rear conveying devices 17, 18 and There exists an effect that it can convey reliably by changing the conveyance speed of the stock takeover conveyance apparatus 76.
[0028]
Thus, the cereal supply device 30 lifts the upper cover 34 of the threshing device to move the heel 33 upward to open the upper surface of the supply conveyance chain 32, and then connect the transmission to the drive gear 37. And unlocking the lock device 97 that fixes the end of the guide rail 35 and the machine body side, and then rotating the end of the guide rail 35 outward about the vertical column 38 to Maintenance of the threshing chamber 31 of the threshing device 3 is performed.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram of the present invention.
FIG. 2 is an explanatory diagram of a known example.
FIG. 3 is a side view.
FIG. 4 is a plan view.
FIG. 5 is a side view.
FIG. 6 is a side view of the transmission.
FIG. 7 is a side view.
FIG. 8 is a partial perspective view.
FIG. 9 is a perspective view.
FIG. 10 is a schematic view of a transmission mechanism.
FIG. 11 is a plan view.
FIG. 12 is a control mechanism diagram.
FIG. 13 is an explanatory diagram of another embodiment.
FIG. 14 is an explanatory diagram of the same action state.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Airframe frame 3 Threshing device 4 Mowing part 17 Rear side stock transporter (stock transport device)
32 Conveyor chain (main supply transport chain)
42 Stage (supporting member)
56 Gear case
59 output pulley 80 takeover transport chain (front supply transport chain)
