JP2003009628A - Combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To smoothly carry out reaping and threshing operations even in the combine harvester combine harvester having a large-sized reaping part for reaping a large amount of grain culms as the combine harvester without causing disturbance of a takeover posture or falling off, etc., of the reaped grain culms when the reaped grain culms are taken over from the side of the reaping part to a grain culm feeding and transporting device. SOLUTION: The grain culm feeding and transporting device for a thresher 3 is composed of a feeding and transporting chain 80 on the front side for receiving the reaped grain culms from a plant foot transporting device 17 provided on the side of the reaping part 4 and a main feeding and transporting chain 32 for receiving the reaped grain culms from the feeding and transporting chain 80 on the front side and transporting the reaped grain culms to the rear of the machine body. The feeding and transporting chain 80 on the front side is arranged so that the starting end thereof faces the vicinity of the terminal end of the plant foot transporting device 17 and the terminal end thereof overlaps with the inside of the starting end of the main feeding and transporting device 32 when viewed from the side. A gear case 56 for driving the feeding and transporting device 80 on the front side is arranged on the inside of the feeding and transporting device 80 on the front side. Furthermore, the gear case 56 is supported through a supporting member 42 on one side of the machine body frame 1.

Description

【発明の詳細な説明】 【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８
０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、該ギヤケ−ス５６
を、支持部材４２を介して機体フレ−ム１側に支持させ
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８
０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、
ギヤケ−ス５６が支持部材４２を介して機体フレ−ム１
側に支持されているため、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８
０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８
０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、
ギヤケ−ス５６が支持部材４２を介して機体フレ−ム１
側に支持されているため、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１
２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１
３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１
３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１
７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２
７により案内されて後側穂先搬送装置１８の搬送ラグ２
３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３
２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。Description: TECHNICAL FIELD [0001] The present invention relates to a combine. 2. Description of the Related Art Conventionally, a single grain culm supply / conveying apparatus (one piece) has been conventionally used for combine harvesters, in which the stem side of a harvested grain culm is sandwiched and the ear tip side is inserted into a threshing apparatus and then fed back. Feed chain) is provided. [0003] The starting end of the grain culm feeding and transporting device is disposed so as to face the vicinity of the end of the stock feeder provided on the cutting section side. [0004] When the amount of harvested grain culm carried over by the grain stalk feeding and transporting device becomes large due to an increase in the size of the cutting section, such as for 5-row cutting and 6-row cutting, the grain culm feeding and transporting device There is a problem that the grain stalk takeover posture is disturbed at the start end of the stalk, or the grain stalk is easily dropped, so that the harvesting and threshing work cannot be performed smoothly. The present invention takes the following technical means in order to solve the above-mentioned problems.
That is, a cereal culm supply / conveyance device for the threshing device 3 includes a front supply / conveyance chain 80 for receiving the harvested grain culm from the stock-source conveyance device 17 provided on the cutting section 4 side, and a front supply / conveyance chain 80
And a main supply transport chain 32 for receiving the harvested culm from the main body and transporting it to the rear of the machine.
0 is arranged such that the start end faces the vicinity of the end of the stock transfer apparatus 17 so as to be superposed on the inside of the start end of the main supply transfer chain 32 in a side view, and the inside of the front supply transfer chain 80 In arranging the gear case 56 for driving the front-side supply / conveyance chain 80, the gear case 56
Are supported on the body frame 1 side via a supporting member 42. That is, by disposing the front supply / conveyance chain 80 inside the start end of the main supply / conveyance chain 32, the harvested grain culm is transferred by the transfer operation of the front supply / conveyance chain 80 on the side of the cutting section 4 on the stock side. When being taken over from the device 17 to the main supply / conveying chain 32, the takeover posture of the grain stalk is less likely to be disturbed, and the grain stalk is less likely to fall off. Further, by disposing the gear case 56 for driving the front supply / conveyance chain 80 inside the front supply / conveyance chain 80, the stock side of the cereal culm conveyed by the front supply / conveyance chain 80 is placed in the gear case. It is less likely to interfere with the seeds 56, and the transportation of the grain stalk is performed smoothly. If the gear case 56 for driving the front supply / conveying chain 80 is supported by the mowing part 4, it is disadvantageous in terms of supporting strength, and the gear case 56 is adjusted by adjusting the mowing height of the mowing part 4.ス 56 also moves up and down, and the front-side supply transfer chain 8
Although the posture of 0 is changed, the transfer of the harvested grain culm cannot be performed smoothly, but in the present invention,
The gear case 56 is connected to the body frame 1 via the support member 42.
Side, the support strength of the gear case 56 is increased, and the position of the gear case 56 does not change even if the cutting height of the cutting unit 4 is adjusted. Is maintained in an appropriate posture, and the transfer of the harvested culm is performed favorably. According to the present invention, the front supply and transfer chain 8 is provided.
0 is arranged inside the start end of the main supply / conveyance chain 32, so that the harvested grain culm can be moved from the rear supply line conveyer 17 of the cutting unit 4 to the main supply / conveyance chain by the transfer operation of the front supply / conveyance chain 80. At the time of being taken over to 32, the takeover posture of the grain stalk is less likely to be disturbed, and the grain stalk is less likely to fall off,
The harvesting and threshing operation can be performed smoothly even in a combine provided with a large-sized mowing portion having a large amount of mowing grain. Further, by disposing a gear case 56 for driving the front supply / conveyance chain 80 inside the front supply / conveyance chain 80, the stock side of the cereal stem conveyed by the front supply / conveyance chain 80 can be moved to the gearcase. It is difficult to interfere with the stalk 56, and the transport of the grain culm is performed smoothly, so that the harvesting and threshing work can be performed smoothly even in a combine provided with a large-sized reaping unit having a large amount of harvested grain culm. Further, if the gear case 56 for driving the front supply / conveying chain 80 is supported by the reaping unit 4 side, it is disadvantageous in terms of supporting strength, and the gear case 56 is adjusted by adjusting the cutting height of the reaping unit 4.ス 56 also moves up and down, and the front-side supply transfer chain 8
Although the posture of 0 is changed, the transfer of the harvested grain culm cannot be performed smoothly, but in the present invention,
The gear case 56 is connected to the body frame 1 via the support member 42.
Side, the support strength of the gear case 56 is increased, and the position of the gear case 56 does not change even if the cutting height of the cutting unit 4 is adjusted. Is maintained in a proper posture, the harvested grain culm can be taken over and transported in a favorable state, and the harvesting and threshing work by the combine can be performed smoothly. DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. 1 is a body frame of a combine, 2 is a traveling device provided below the body frame 1, and 3 is a body frame 1.
Threshing device 4 provided above the body frame 1, cutting portion provided in front of the body frame 1, 5 is the weeding body of the cutting portion 4, 6 is a raising device, 7 is a scraping device, 8 is a cutting blade, 9 is a front side Stock transfer device,
Reference numeral 10 denotes a front spike conveying device, 11 denotes a rear focusing device, and 12 denotes a reaping unit frame. The reaping unit 4 includes the reaping unit frame 1
2, the lower part of the support pipe 13 is fixed, and a fixed horizontal cylinder 14 is fixed to the base of the support pipe 13 so as to be rotatable on the upper part of a support base 15 provided on the body side. Horizontal tube 14 and support pipe 1
A transmission shaft for transmitting power to the reaper 4 is built in each of the sections 3. 16 is a cutting vertical cylinder, 17
Is a rear stock transfer device (stock transfer device) for transferring the grain culm cut by the cutting unit 4 toward the rear threshing device 3, and 18 is a rear spike transfer device. The rear stock transfer device 17 is composed of a transfer chain 19 and a clamping rod 20 provided in the vicinity of the transfer chain 19 so as to face each other. Although illustration is omitted, the transport chain 19 is
By being hung around a guide rail and a plurality of guide rollers rotating in the vertical axis provided on a frame on which the guide rail is mounted, the base of the frame is rotatably mounted on the side of the horizontal pipe 14 above the support pipe 13. Each of the above-mentioned front stock transfer devices 9
In addition, the starting end of the transport chain 19 facing the takeover point at the end of the front ear tip transport device 10 is moved up and down, so that the handling depth supplied to the threshing device 3 is adjustable. 21 is a handling depth adjusting device, and 22 is a culm length detection switch. The rear spike transfer device 18 includes a transfer lug 23
Is wound around a drive mechanism for rotating the vertical axis inside the case 24, and the base of the case 24 is
3 is rotatably attached to the upper side of the horizontal cylinder 14. Reference numeral 25 denotes a mounting arm, reference numeral 26 denotes a mounting member, and reference numeral 27 denotes a guide for the rear spike transfer device 18. Reference numeral 30 denotes a grain culm supply device for supplying grain culms to the threshing chamber 31 of the threshing device 3, and is constituted by a supply transport chain (main supply transport chain) 32 and a clamping rod 33. The clamping rod 33 is an upper cover 34 of the threshing device 3.
The upper cover 34 moves upward when the upper cover 34 is opened upward. The supply / conveying chain 32 is hung between a passive gear 36 provided at a start end of a guide rail 35 in the front-rear direction and a drive gear 37 provided at a terminal end, and a vertical shaft provided at a start end side of the guide rail 35. The lower part of the column 38 is rotatably attached to the support frame 39. That is, the grain culm supply device 30 is configured such that the terminal end portion rotates sideways around the vertical column 38. The lower part of the support frame 39 is fixed to the body frame 1, and the upper part is bent and fixed to the front plate of the threshing device 3. A side cover 40 is attached to the guide rail 35 side, and the side cover 40 and the guide rail 35 are configured to rotate integrally outward. Reference numeral 43 denotes an engine; 44, a transmission case for transmitting power to the traveling device 2 on which the support base 15 is mounted; 45, a hydraulic continuously variable main transmission provided on the transmission case 44; The rotation is transmitted to the reaper input pulley 46 via a transmission path from a hydraulic continuously variable main transmission 45 that is branched from the transmission path to the transmission case 44 of the traveling device 2. The traveling speed of the traveling device 2 and the working speed of the reaper 4 are both changed to optimal speeds. 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 section transmission device described below 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 section output pulley, 58 is A belt 59 is an output pulley for outputting to the threshing device 3. The reaping section transmission 52 comprises a belt 62, a driving split pulley 63 and a passive split pulley 64. The driving split pulley 63 and the passive split pulley 64 are adjusted in width by cam bodies 65 and 66, respectively. The cam bodies 65 and 66 are configured to operate in opposite directions, and the arm 67
Are provided, the arms 67 are connected by a rod 68, and the rod 68 is moved by a rod 70 moved by a motor 69. 71 is a top provided at the base of the rod 70, 72
Is a screw shaft which is rotated by the motor 69 into which the top 71 is screwed, and 73 is a detent guide for the top 71. The cutting unit transmission 52 independently changes the working speed of the cutting unit 4 with respect to the traveling speed of the traveling device 2, and increases the working speed of the cutting unit 4 when cutting the lodging grain culm. It should be noted that not only the working speed of the reaping unit 4 is independently changed by the reaping unit transmission device 52 but also the traveling speed of the traveling device 2 which is shifted by the auxiliary transmission device in the transmission case 44. It is also possible to adopt a configuration in which the working speeds of the two correspond. The passive split pulley 64 has its rotary shaft 74 attached to the bearing 51 via a one-way rotation transmission clutch (one-way clutch) 75. When the hydraulic continuously variable main transmission 45 transmits reverse rotation, The reverse rotation is not transmitted to the reaper 4. Thus, a handover transfer device 76 is provided between the end of the rear stock transfer device 17 and the rear spike transfer device 18 and the start end of the transfer chain 32 of the grain culm supply device 30. The transfer device 76 has an intermediate portion of the chain guide rail 77 attached to the support frame 39, and a pair of horizontal rotating passive gears 78, 78 at front and rear ends of the chain guide rail 77.
, And a take-over transport chain (front supply transport chain) 80 is wrapped around the passive gears 78, 78. Reference numeral 81 denotes a separately provided guide gear, which also serves as a tension gear. And
A fixed drive gear 83 meshes with a rotation shaft 82 protruding from the gear case 56 with the transfer conveyance chain 80. Accordingly, the transfer speed of the take-over transfer device 76 is also changed in proportion to the traveling speed of the traveling device 2 by the hydraulic stepless main transmission device 45, and synchronized with the working speed of the reaper 4 by the reaper transmission device 52. Will be shifted. In addition, the grain stalk supply device 30
Since the constant rotation of the engine 43 is constantly transmitted, the transport speed is constant. The starting end of the transfer chain 80 faces the lower end of the transfer chain 19 of the rear stock transfer device 17, and a guide guide 85 is provided above the transfer chain 80. Information guide 85
The start end of the transfer chain is located near the end of the rear stock transfer device 17 and the rear spike transfer device 18, and the end is desired above the start end of the transfer chain 80. Movably between the action position located above the start end of the sewage transfer chain 80 and the retreat position away from above the start end of the takeover transport chain 80, so that not only the culm can be guided but also maintenance can be easily performed. I have. The guide 85
Specifically, the guide member 85 is formed by a shaft member that is parallel to the conveying direction of the grain culm (front-back direction), and the starting end of the guide 85 is bent in a direction intersecting with the conveying direction of the grain culm to form a bent portion. The bent portion is rotatably and slidably mounted in the direction intersecting with the transport direction at the end of the mounting member 26 of the guide guide 27 of the rear spike transport device 18. The guide 85 is located above the start end of the transfer transport chain 80. It is urged by a spring so as to be located at. FIG. 12 shows a control for controlling the working speed of the cutting section 4, the transfer speed of the rear stock transfer device 17, the rear tip transfer device 18 and the transfer transfer device 76, and the running speed of the transfer device 2. A mechanism is shown, and a culm length detection switch 22 provided in the handling depth adjusting device 21 and the transmission case 44
, A position detection sensor (potentiometer) 88 of a main transmission operation lever 87 of the hydraulic continuously variable main transmission 45, and an on / off detection switch 90 of a reaping clutch operation lever 89. The motor 69 of the reaping section transmission 52 is controlled by the data. Further, the conveying speed A of the grain stalk supply device 30
The transfer speed B of the transfer transfer device 76 and the rear stock transfer device 1
7 and the transfer speed C of the rear ear tip transfer device 18 are A <
There may be a case where B <C. That is, the transfer speed B of the transfer transfer device 76 is set near the middle of the maximum transfer speed C of the rear stock transfer device 17 and the rear spike transfer device 18 and the transfer speed A (constant speed) of the grain culm supply device 30. The maximum speed is set. In the figure, 92 is a handling cylinder, 93 is a handling net, 94 is a straw conveying device, 95 is a straw 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. Next, the operation will be described. The embodiment of the present invention is configured as described above. 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. Device 45
The transmission speed is steplessly changed and transmitted to the transmission case 44 of the traveling device 2 to advance the machine body. On the other hand, the transmission is transmitted from the transmission case 44 to the reaping unit input pulley 46 to operate each unit of the reaping unit 4. Weeding is carried out by the weeding body 5, the weeded cereals are raised by the raising device 6, and the raised cereals are cut by the cutting blade 8 while the raised cereals are being scraped by the scraping device 7. The root side of the grain is conveyed to the take-over point by the front-side conveyer device 10 by the front-side conveyer device 9, and the root of the grain culm conveyed to the take-over point is the vertical rotation of the rear-side conveyer device 17 It is pinched and conveyed by a conveying chain 19 that rotates with a gear and a pinching rod 20, and the tip side is a guide 2.
7 and the transport lug 2 of the rear ear tip transport device 18
3 transported. At the end portions of the rear stock transfer device 17 and the rear tip transfer device 18, the passive gear 78 having a horizontal axis rotation is provided.
Transfer chain 80 of the transfer device 76 looped around
And a transfer guide 76 above the transfer transfer chain 80, a transfer transfer device 76 transfers to the supply transfer chain 32 of the grain culm supply device 30, supplies the supply to the threshing room 31 of the threshing device 3, and rotates the rotating cylinder. Threshing is performed by 92, threshing is selected and taken out of the machine, and the threshed straw is transported to a straw processing unit 95 by a straw transporting device 94 for processing. In the above case, the grain culm is in an upright state at the end portions of the rear stock transfer device 17 and the rear spike transfer device 18, but while being guided by the guide 27 and lying down, the takeover transfer chain 80 having a horizontal axis rotation. In the final posture of the grain culm in a state where the grain culm is lying down, there is no disturbance in the conveying posture of the grain culm.
Of the cereal culm is prevented and the handover is ensured. In addition, since the transfer device 76 is parallel to the supply transfer chain 32 of the grain culm supply device 30 and is located inside, the polymerization can be performed in a side view, and not only the transfer is ensured, but also particularly, Short culm can be transported reliably. In addition, the start end of the transfer conveyor chain 80 of the transfer conveyor system 76 faces below the end of the rear stock transfer system 17, and the supply transfer chain 3 of the grain culm supply system 30.
Since the starting end of No. 2 faces the lower part of the end of the transfer conveyance chain 80, the transfer in each transfer portion is performed favorably. The drive gear 83 of the transfer conveyor chain 80
Are provided on the rotating shaft 82 protruding from the gear case 56 provided on the side between the front and rear passive gears 78, so that the positional relationship between the drive gear 83 and the front and rear passive gears 78 can be accurately arranged. And make sure it works. Also,
The clutch 41 is attached to the input pulley 54 of the gear case 56.
When the mowing unit 4 is stopped, the transfer device 76 is also stopped, the start is synchronized, the transfer is good, and the conveying posture of the grain culm is also good. The gear case 56 is fixed to the threshing device 3 by the stay (support member) 42.
, And the positional relationship between the transfer device 76, the rear stock transfer device 17, and the rear spike transfer device 18 and the grain stalk supply device 30 can be fixed, and the operation is assured. When the traveling device 2 is stopped by the hydraulic stepless main transmission 45, the mowing unit 4 and the take-over transporting device 76 are stopped, so that the work is assured and the operability is improved. When the machine body is stopped by the auxiliary transmission device, the rotation is transmitted from the hydraulic stepless main transmission device 45 to the reaping unit 4 and the take-over conveyance device 76. Threshing device 3
Can be supplied. 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 reaper transmission 52 is connected to the rotating shaft mounted on the bearing 51 via the one-way rotation transmission clutch 75. The attachment 74 prevents the reverse rotation from being transmitted to the reaper 4, the transfer device 76 and the like. At this time, the rotating shaft 74
Is mounted on the one-way rotation transmission clutch 75 provided on the bearing 51, so that maintenance can be easily performed. In the case where the culm in the field is in a laid state, if the working speed of the cutting unit 4 is slower than the traveling speed, the culm may not be sufficiently pulled up.
When the rotation transmitted to the reaping unit 4 is increased by operating the reaping unit transmission 52, the work can be performed reliably. That is, normally, the hydraulic continuously variable main transmission 45
The speed of the traveling device 2 and the mowing part 4 is changed in proportion to
The work according to the state of the grain stem by independently changing the working speed of the mowing unit 4 and the transfer speed of the rear stock former transfer device 17, the rear ear tip transfer device 18 and the stock takeover transfer device 76 by the cutting unit transmission device 52. Speed can be selected. In this case, the transport speed A of the grain stalk supply device 30
And the transport speed B of the takeover transport device 76 and the transport speed C of the rear stock source transport device 17 and the rear ear tip transport device 18
When A <B <C is satisfied, the speed is reduced by the transfer from the rear stock transfer device 17 and the rear spike transfer device 18 to the transfer transfer device 76, and the grain transfer device 30 is transferred from the transfer transfer device 76.
The amount of the cereals increases as the culm is transported toward the cereal culm supply device 30 and becomes thicker as the culm is transported toward the cereal culm supply device 30, and the conveying speed gradually decreases, so that the conveying posture is improved. In other words, the operation of the mowing unit transmission 52 increases the rotation transmitted to the mowing unit 4 so that the work of the lodging culm is not only easy and reliable, but also the rear conveying device 17 is correspondingly operated. , 18 and the stock-taking-over transfer device 76 are changed so that the transfer can be surely performed. The culm feeding device 30 lifts the upper cover 34 of the threshing device and moves the clamping rod 33 upward to open the upper surface of the supply / conveying chain 32. After disconnecting the transmission and unlocking the lock device 97 for fixing the end of the guide rail 35 to the machine side, the end of the guide rail 35 is pivoted outward around the vertical column 38 to supply the grain stalk. The maintenance of the threshing room 31 of the device 30 and the threshing device 3 is performed.

【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 ８０ 引継搬送チェン（前側供給搬送チェン）[Brief description of the drawings] FIG. 1 is an explanatory diagram of the present invention. FIG. 2 is an explanatory view 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 diagram 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 operation state. [Explanation of symbols] 1 Aircraft frame 3 Threshing device 4 Harvester 17 Rear stock carrier (stock carrier) 32 Transport chain (main supply transport chain) 42 stay (supporting member) 56 Gear case 80 Transfer chain (front side supply chain)

Claims (1)

【特許請求の範囲】 【請求項１】 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、該ギヤ
ケ−ス５６を、支持部材４２を介して機体フレ−ム１側
に支持させたことを特徴とするコンバイン。Claims: 1. A grain feeding and conveying device for a threshing device 3, comprising: a front feeding and conveying chain 80 for receiving cut culms from a stock feeding device 17 provided on a cutting section 4; A main supply transport chain 32 that receives the harvested culm from the transport chain 80 and transports the harvested culm to the rear of the machine. The front supply transport chain 80 has its starting end near the end of the stock transfer device 17. The main supply / conveying chain 32 is disposed inside the starting end of the main supply / conveying chain 32 so as to be overlapped in a side view.
Wherein the gear case 56 is supported by the body frame 1 via the support member 42 when the gear case 56 for driving the vehicle is disposed.