JP4158497B2

JP4158497B2 - Combine harvester

Info

Publication number: JP4158497B2
Application number: JP2002335829A
Authority: JP
Inventors: 康治奥本; 雅之阿波; 一春喜安; 毅武方; 久幸里路; 学斎藤; 静雄新見; 武史加藤
Original assignee: Iseki and Co Ltd
Current assignee: Iseki and Co Ltd
Priority date: 2002-11-19
Filing date: 2002-11-19
Publication date: 2008-10-01
Anticipated expiration: 2022-11-19
Also published as: JP2004166582A

Description

【０００１】
【産業上の利用分野】
本発明は、分草体および引起装置および刈刃および根元搬送装置を設けて刈取部を構成し、各根元搬送装置の終端に脱穀装置に穀稈を供給する穀稈供給搬送装置の始端部に穀稈を引き継ぐ引継搬送装置の始端部を臨ませ、刈取部は機体側に回動自在に取付けた縦支持フレームの先端に刈取部の下部横伝動ケースを取付け、下部横伝動ケースの左右および中間位置には引起装置に回転を伝達する側部伝動ケースおよび中央伝動ケースの下部を取付けたコンバインの刈取部に係るものである。
【０００２】
【従来技術】
従来、分草体および引起装置および刈刃および根元搬送装置を設けて刈取部を構成し、各根元搬送装置の終端に脱穀装置に穀稈を供給する穀稈供給搬送装置の始端部に穀稈を引き継ぐ引継搬送装置の始端部を臨ませ、前記刈取部は機体側に回動自在に取付けた縦支持フレームの先端に刈取部の下部横伝動ケースを取付け、下部横伝動ケースの左右および中間位置には前記引起装置に回転を伝達する側部伝動ケースおよび中央伝動ケースの下部を取付け、前記側部伝動ケースおよび中央伝動ケースは所定の角度に傾斜している引起装置の上部と下部横伝動ケースとの間を側面視直線状に連結した構成は、公知である（例えば、特許文献１参照）。
。
【０００３】
【特許文献１】
特開平９−１６８３２５号公報（図１参照）
【０００４】
【発明が解決しようとする課題】
前記公知のものは、所定の角度に傾斜している引起装置の上部と下部横伝動ケースとの間を側面視直線形状の側部伝動ケースにより連結しているため、扱深さ調節用の搬送装置の始端部が上下する空間を引起装置の後側に設ける必要があり、その分、引起装置と搬送装置の間を搬送される穀稈の搬送姿勢に乱れが生じることがあるという課題がある。
また、引起装置の後側に扱深さ調節用の搬送装置の始端部が上下する空間を設けた分、機体の全長が長くなるという課題もある。
本願は、刈取部の搬送装置と脱穀装置に穀稈を供給する穀稈供給搬送装置との間の引継搬送装置通路において、搬送の確実性を向上させ、しかも、機体全長を短縮したものである。
【０００５】
【発明の目的】
穀稈の搬送・供給・引継の確実化、機体全長の短縮。
【０００６】
【課題を解決するための手段】
本発明は、複数の分草体１０および引起装置１１の後側に刈刃１５を設け、該刈刃１５の後側に左右の前記分草体１０からの複数の搬送通路を通る穀稈を夫々搬送する根元搬送装置１４を設けて刈取部５を構成し、前記各根元搬送装置１４の終端に、始端部を上下させて扱深さ調節する扱深さ調節装置を兼用し、且つ、脱穀装置３に穀稈を供給する穀稈供給搬送装置３０の始端部に穀稈を引き継ぐ株元引継搬送装置３１の始端部を臨ませ、前記刈取部５の下部横伝動ケース１８は機体側に回動自在に取付けた縦支持フレーム６の先端に取付け、下部横伝動ケース１８の左右および中間位置には前記引起装置１１に回転を伝達する側部伝動ケース２０および中央伝動ケース２１の下部を夫々取付け、前記側部伝動ケース２０および中央伝動ケース２１の上部は前記引起装置１１の引起ケース６１の上部に接続し、前記側部伝動ケース２０および中央伝動ケース２１の内の少なくとも側部伝動ケース２０は、その上下中間部に上端および下端より前側に位置するように上下中間屈曲部６０を形成し、前記左右の側部伝動ケース２０は夫々正面から見て上下中間屈曲部６０より上方に至たるに従い互いに接近するように形成し、前記中央伝動ケース２１の縦伝動杆６５は前記引起ケース６１の上部に回転伝達可能に連結する共に前記引起ケース６１の後側に側面視略平行状態に配置し、前記縦伝動杆６５の下部は前記引起ケース６１の下部より下方に位置する下部ギヤボックス６４に固定し、該下部ギヤボックス６４には基部を前記下部横伝動ケース１８に固定した通常の刈取作業中地面と略平行になる下部伝動杆６３の先端を固定し、前記下部ギヤボックス６４は前記分草体１０を先端に取付けた分草パイプ６６とガイド体６７により連結したコンバインの刈取部としたものであり、走行装置２により前進すると、各分草体１０により分草し、分草体１０により分草された穀稈は引起装置１１により引起され、スターホイル１３により後方に掻込まれ、刈刃１５により切断され、切断された穀稈の株元は各根元搬送装置１４により搬送され、各根元搬送装置１４により搬送された穀稈は、その株元側を始端部が上下して扱深さ位置を調節する株元引継搬送装置３１に挟持位置が変更されて引き渡されて搬送され、穂先側は穂先引継搬送装置３２により搬送され、搬送された穀稈は脱穀装置３に穀稈を供給する穀稈供給搬送装置３０に引継がれて脱穀される。
そして、下部横伝動ケース１８の左右両側に起立する側部伝動ケース２０を介して引起装置１１に回転を伝達し、側部伝動ケース２０の上下中間部分は上下中間屈曲部６０に形成され、側部伝動ケース２０は上下中間屈曲部６０を前側に位置させて「く」の字形状に形成しているので、始端部が上下する株元引継搬送装置３１および穂先引継搬送装置３２の上下作動する空間を側部伝動ケース２０の後方に形成し、株元引継搬送装置３１および穂先引継搬送装置３２を引起装置１１の後方すぐに位置させられ、引継を良好にするだけでなく、機体全長を短くする。
また、前記左右の側部伝動ケース２０は夫々正面から見て上下中間屈曲部６０より上方に至たるに従い互いに接近するように形成しているので、隣接する引起装置１１との間に形成した穀稈通路は、上側の穂先側は左右の側部伝動ケース２０が上下中間部より上方に至たるに従い互いに接近しいても引起ケース６１の後方で引起装置１１の引起ラグ７６による引起しに悪影響を与えず、また、下側の株元側は側部伝動ケース２０の上部が接近させた分略縦状に起立させることで間隔を広く形成して、隣接する引起装置１１との間に形成した穀稈通路を通過する穀稈の姿勢を良好にして下から上に移動する引起装置１１の引起ラグ７６により引起せる。
【０００７】
【発明の効果】
請求項１の場合、搬送姿勢が安定し、稈こぼれを防止できて、引継が良好にし、機体の全長を短くでき、搬送通路を拡大し、穀稈の搬送姿勢を安定させられる。
【０００８】
【発明の実施の形態】
本発明の実施例を図により説明すると、１は機体フレーム、２は走行装置、３は走行装置２の上方位置に設けた脱穀装置、４は該脱穀装置３の前側一側位置に設けた操縦部、５は前記脱穀装置３および前記操縦部４の前方位置に設けた刈取部である。
刈取部５は、前後方向の縦支持フレーム６の先端に設け、縦支持フレーム６の基部に基部横伝動ケース７を設け、基部横伝動ケース７は前記機体フレーム１の支持台に回動自在に取付ける。縦支持フレーム６の中間部には刈取上下シリンダ９の一端を取付け、刈取上下シリンダ９の他端を機体側に取付け、刈取上下シリンダ９により刈取部５を上下させる。
１０は前記刈取部５に設けた分草体、１１は各分草体１０の後方の引起装置、１２は引起装置１１の後方のラグ式掻込装置、１３はラグ式掻込装置１２の基部側下方位置に設けたスターホイル、１４は左右のスターホイル１３の上方に設けた根元搬送装置、１５は刈刃である。
【０００９】
また、１８は縦支持フレーム６の先端に設けた下部横伝動ケースであり、刈取入力プーリ１９に伝達されたエンジンの回転が縦支持フレーム６内の伝動軸により刈取部５の各部に伝達される。２０は下部横伝動ケース１８の左右側に設けた左右側部伝動ケース、２１は中央伝動ケースであり、前記左右の側部伝動ケース２０および中央伝動ケース２１の夫々は前記引起装置１１の上部に取付け、支持部材と回転伝達部材を兼用する。
前記左右の側部伝動ケース２０の上下中間部には上下中間伝動ケース２２の基部を取付け、上下中間伝動ケース２２の先端に伝動軸２３、２４を設け、伝動軸２３、２４によりスターホイル１３および根元搬送装置１４に回転を伝達している。２５は刈刃１５に回転を伝達する伝達軸である。
【００１０】
左右の根元搬送装置１４の搬送通路の後側には、搬送された穀稈を前記脱穀装置３に供給する穀稈供給搬送装置３０に引継ぐ株元引継搬送装置３１と穂先引継搬送装置３２を設ける。株元引継搬送装置３１は、引継搬送チエン３３と引継挾扼杆３４とを有し、引継搬送チエン３３は駆動スプロケット３５と従動スプロケット３６とに掛け回すが、駆動スプロケット３５と従動スプロケット３６は任意の手段により機体側に取付ける。一例を示すと、基部横伝動ケース７の一部または基部横伝動ケース７に設けた伝動フレーム３７の回転軸３８に前記駆動スプロケット３５を固定し、伝動フレーム３７に設けたフレーム３９に前記従動スプロケット３６を回転軸４０により取付ける。
前記引継挾扼杆３４は、機体側に基部を固定した逆Ｕ型支持フレーム４１の先端に設けた取付台４２に対し弾力的に出入自在に取付け、引継搬送チエン３３に対して遠近に移動して搬送中の穀稈に弾接する。
【００１１】
株元引継搬送装置３１の始端部は、根元搬送装置１４の終端部に側面視重合させ、根元搬送装置１４により搬送された穀稈の受渡しを確実にしている。また、伝動フレーム３７を基部横伝動ケース７に対して回転自在に取付けることにより、株元引継搬送装置３１の始端部を上下位置調節自在に構成し、扱深さ調節装置として兼用している。
前記株元引継搬送装置３１の上方位置には前記穂先引継搬送装置３２を設ける。穂先引継搬送装置３２は、機体側に取付けたケースフレーム４５に設けた駆動スプロケット４６と、ケースフレーム４５の先端側に設けた従動スプロケット４７とにラグ付き搬送チエン４８を掛け回わし、ラグ付き搬送チエン４８に引継搬送ラグ４９を所定間隔を置いて起伏自在に取付けて構成する。実施例では、ケースフレーム４５は伝動フレーム３７側に取付け、株元引継搬送装置３１の始端部の上下動に連動して穂先引継搬送装置３２の始端部が上下するように構成している。図示は省略するが、ケースフレーム４５には、引継搬送ラグ４９を起立状態に保持する起立ガイドと、引継搬送ラグ４９を格納させるために倒伏させる倒伏ガイドをそれぞれ所定位置に設けている。
【００１２】
しかして、左右に複数並設した分草体１０により分草されて引起装置１１により引起された穀稈は、並行状態のまま刈刃１５により根元が切断され、そのまま複数並設された各分草体１０から続く搬送通路Ｈを根元搬送装置１４により搬送され、この夫々の搬送通路Ｈを搬送された穀稈は合流して、株元引継搬送装置３１と穂先引継搬送装置３２に引継がれる。
この各搬送通路Ｈを通って合流した穀稈が搬送される引継搬送通路Ｇには、一対の穀稈掻込体（スターホイル）５０、５１を設ける。穀稈掻込体５０、５１は、円板形状に形成し、周縁に掻込爪５２、５３を所定間隔を置いて複数夫々形成し、夫々の穀稈掻込体５０、５１の掻込爪５２、５３は互いに噛み合わせ、掻込爪５２と掻込爪５３とが噛み合うことで穀稈を掻き込む。
駆動穀稈掻込体５０は前記回転軸４０の上端に取付け、回転軸４０は支持部材５５に軸装され、支持部材５５の下部は前記回転軸４０を軸装したフレーム３９に固定して設けられ、引継搬送チエン３３の回転が回転軸４０を介して伝達されて駆動回転する。
【００１３】
また、従動穀稈掻込体５１は駆動穀稈掻込体５０に噛み合うことで回転し、駆動穀稈掻込体５０に噛合う前記従動穀稈掻込体５１は、取付フレーム５８の先端に軸装し、取付フレーム５８の基部は前記逆Ｕ型支持フレーム４１に設けた取付台４２に取付けている。
この駆動穀稈掻込体５０と従動穀稈掻込体５１の駆動掻込爪５２と従動掻込爪５３の噛合部５４は各搬送通路Ｈが合流する引継搬送通路Ｇに設け、各搬送通路Ｈから搬送された穀稈の合流を円滑にしている。
即ち、駆動穀稈掻込体５０と従動穀稈掻込体５１は複数の搬送通路Ｈが合流する引継搬送通路Ｇの搬送方向の左右両側に夫々位置し、駆動掻込爪５２と従動掻込爪５３が搬送方向上手側から下手側に互いに回転して穀稈を掻き込み、駆動穀稈掻込体５０と従動穀稈掻込体５１は搬送通路Ｈからの合流と引継搬送通路Ｇの搬送の双方に作用し、特に搬送通路Ｈの合流部分での掻き込み作用により穀稈の挟み込みや噛込みなどの不具合を防止し、詰まり発生を防止でき、各搬送通路Ｈからの合流および引継搬送通路Ｇにおける搬送を円滑、確実にする。
【００１４】
この場合、駆動掻込爪５２と従動掻込爪５３の噛合部５４部分は搬送方向の一点ではなく前後に所定長さを有しており、同様に、引継搬送通路Ｇも搬送方向に所定の長さを有しているので、噛合部５４も搬送通路Ｈの合流部分の何れもただの一か所を指すものではなく、所定の長さ（幅あるいは範囲）を有し、この範囲内に噛合部５４を配置することで、搬送通路Ｈから搬送された穀稈の合流を円滑にするようにすればよい。
換言すると、実施例では、左右に根元搬送装置１４を設け、根元搬送装置１４の根元搬送チエン５８が互いに接近する場所が引継搬送通路Ｇの始端部となり、この引継搬送通路Ｇの始端部近傍に噛合部５４を位置させると、左右の搬送通路Ｈからの合流する搬送穀稈を駆動穀稈掻込体５０と従動穀稈掻込体５１により円滑に掻き込んで搬送して、好適である。
なお、図１の根元搬送装置１４は、その左側は根元搬送チエン５９に変えて根元搬送ラグ５９ａに形成し、騒音発生を抑制している。
【００１５】
また、駆動穀稈掻込体５０と従動穀稈掻込体５１の夫々の駆動掻込爪５２と従動掻込爪５３の先端軌跡（搬送上手側）は、引継搬送通路Ｇの始端部あるいは根元搬送装置１４の根元搬送チエン５９（根元搬送ラグ５９ａ）が互いに接近する場所よりも搬送方向上手側に位置するようにすると、一層、根元搬送装置１４による穀稈搬送の受渡が円滑確実になって、搬送（受け渡し）姿勢が安定して良好になり、稈こぼれも抑制防止でき、好適である。即ち、噛合部５４を引継搬送通路Ｇ内に位置させても、駆動掻込爪５２と従動掻込爪５３の先端軌跡が各搬送通路Ｈの終端とラップすることで、掻き込み性能を向上させられる。
また、引継搬送通路Ｇの正面から見たとき、穂先引継搬送装置３２の引継搬送ラグ４９が通過する移動路内に駆動穀稈掻込体５０と従動穀稈掻込体５１の噛合部５４を位置させると、搬送姿勢が安定し、稈こぼれを防止できて、好適である。
【００１６】
即ち、引継搬送ラグ４９の作用域の移動路の下方に駆動穀稈掻込体５０と従動穀稈掻込体５１の噛合部５４を位置させることで、穂先搬送中の穀稈の株元が駆動穀稈掻込体５０と従動穀稈掻込体５１により確実に挟持されて、搬送案内（掻込）作用も向上する。
また、引継搬送通路Ｇの正面から見たとき、駆動穀稈掻込体５０と従動穀稈掻込体５１の噛合部５４に対して穂先引継搬送装置３２の引継搬送ラグ４９先端の移動軌跡は、反ケースフレーム４５側に突き出すように位置させると、搬送通路が広くなって搬送姿勢が安定し、穂先側の搬送案内も良好になって、稈こぼれを防止できて、好適である。
また、穂先引継搬送装置３２の引継搬送ラグ４９のピッチに対して駆動穀稈掻込体５０の駆動掻込爪５２および従動穀稈掻込体５１の従動掻込爪５３のピッチを小に構成する。この場合、引継搬送ラグ４９も駆動掻込爪５２も回転軸４０から同じ回転数が伝達されるが、駆動穀稈掻込体５０の駆動掻込爪５２および従動穀稈掻込体５１の従動掻込爪５３のピッチを小にすることで、穀稈に対する各掻込爪５２、５３の接触（掻込）回数が、引継搬送ラグ４９より多くなって、掻込性能が向上し、穀稈の挟持力も向上し、搬送姿勢が安定し、稈こぼれを防止できて、好適である。
【００１７】
しかして、前記側部伝動ケース２０は、その上下中間部に上下中間屈曲部６０を形成する。側部伝動ケース２０の下部は下部横伝動ケース１８に取付け、側部伝動ケース２０の下端より上下中間屈曲部６０に至るに従い前側に位置するように傾斜させ、上下中間屈曲部６０より上方の側部伝動ケース２０は前記引起装置１１の引起ケース６１の後方に沿わせて上部に至るに従い後側に位置するように傾斜させ、側部伝動ケース２０は側面視「く」の字形状に屈曲させて形成する。そのため、根元搬送装置１４による穀稈搬送の受渡が円滑確実になって、搬送（受け渡し）姿勢が安定して良好になり、稈こぼれも抑制防止できる。
即ち、側部伝動ケース２０は側面視「く」の字形状に屈曲させて形成することにより、駆動穀稈掻込体５０と従動穀稈掻込体５１を根元搬送装置１４の搬送通路の終端に接近、または、終端上方に位置させることができ、搬送を良好にできる。
【００１８】
特に、側部伝動ケース２０は側面視「く」の字形状に屈曲させて形成することにより、引起装置１１と株元引継搬送装置３１および穂先引継搬送装置３２との間の根元搬送装置１４の上方にある穂先搬送装置を省略し、扱深さ調節装置を兼用する株元引継搬送装置３１の始端部を根元搬送装置１４の終端部近傍に配置でき、また、株元引継搬送装置３１および穂先引継搬送装置３２の始端部が引起装置１１の後側近傍に接近しうる空間を設けることができて、好適である。
即ち、従来の刈取部５の構成では、引起装置１１と株元引継搬送装置３１および穂先引継搬送装置３２との間の、根元搬送装置１４の上方に穂先搬送装置を設けていたが、本願では、根元搬送装置１４の上方の穂先搬送装置を省略できて軽量化が図れ、機体全長も短くして、全体の小型化も図れる。
また、前記側部伝動ケース２０のうちの進行方向の右側の側部伝動ケース２０の上下中間屈曲部６０は、前記操縦部４の前側に設けた機体カバー６２の側面形状に合わせた位置に設け、側部伝動ケース２０の下部の取付位置と側部伝動ケース２０の上部の引起装置１１の接続部分とを結ぶ線より前側空間に側面視機体カバー６２が位置するように構成する。
したがって、刈取部５を上下回動させたとき、刈取部５と機体カバー６２との干渉を防止し、そのため、操縦部４の前方にまで刈取部５を寄せることができ、操縦部４の前方の穀稈の刈取が行える全面刈りを実現しつつ、機体幅および全長をコンパクトにでき、好適である。
【００１９】
しかして、左右の側部伝動ケース２０の上部は前記引起装置１１の上部に接続するが、左右の側部伝動ケース２０の下部はその上部と引起装置１１との接続部分の外側に位置させ、正面視、上下中間屈曲部６０より上方の側部伝動ケース２０が上端に至るに従い内側に傾斜させて形成する。
そのため、左右の側部伝動ケース２０の下部は、左右間隔（空間）を広げられ、搬送通路を拡大して搬送を円滑にでき、また、側部伝動ケース２０の上部は引起装置１１の上側後部に接続して回転を伝達する。
しかして、中央伝動ケース２１は、下部伝動杆６３の基部を下部横伝動ケース１８に通常の刈取作業中に地面と略平行になるように固定し、下部伝動杆６３の前端は分草体１０の後側下部に位置する下部ギヤボックス６４に固定し、下部ギヤボックス６４には引起装置１１の引起ケース６１の後側に略平行に位置する縦伝動杆６５の下部を取付け、縦伝動杆６５の上部は引起装置１１の引起ケース６１の上部に回転伝達可能に連結して構成する。
【００２０】
この場合、分草体１０は分草パイプ６６の先端に取付け、分草パイプ６６の基部は上方に屈曲させて引起ケース６１に固定し、この分草パイプ６６と前記中央伝動ケース２１との間の隙間にはガイド体６７を設ける。ガイド体６７は縦板状に形成し、分草パイプ６６の屈曲部６８の直上方より下部ギヤボックス６４の上部に位置するように設けて、特に、下部ギヤボックス６４と分草パイプ６６の間に穀稈が詰まるのを防止する。
したがって、中央伝動ケース２１は中央の引起装置１１の引起ケース６１の後側に縦伝動杆６５を位置させ、しかも下部伝動杆６３は低く分草体１０の後側下部に位置させて構成することで、搬送中の穀稈との干渉を避けつつ、中央伝動ケース２１の下部ギヤボックス６４部分をガイド体６７を介して分草パイプ６６と連結でき、分草体１０の分草パイプ６６と引起装置１１の引起ケース６１と中央伝動ケース２１の縦伝動杆６５とを互いに連結する強度メンバーに構成する。
そのため、ガイド体６７は、中央伝動ケース２１の強度を向上させつつ、藁屑の引っ掛かりや巻き付きを防止する。
【００２１】
しかして、左右および中央の引起装置１１の引起ケース６１の上部上方には、補強アッパーフレーム７０を設ける。アッパーフレーム７０は、逆Ｕ型形状に形成し、中央の引起装置１１の引起ケース６１の上方に所定間隔を置いて位置させ、左右側フレーム７１の下部の夫々を左右の引起装置１１の引起ケース６１の上部に接続固定し、アッパーフレーム７０の左右中間部に設けた中間フレーム７２の下部は中央の引起装置１１の引起ケース６１の上部に接続する。
これにより、中央の中央伝動ケース２１の形状を、下部伝動杆６３が分草体１０の後側下部で、且つ、下部ギヤボックス６４より低く位置して、搬送通路を拡大した構成を採用した場合でも、中央伝動ケース２１の上部支持構成の強度を向上させられ、また、各引起装置１１の引起ケース６１の上部を連結するので、長稈の搬送通路を確保できる。
したがって、前記ガイド体６７を設けた構成と組合せると、一層、各引起装置１１の引起ケース６１の上部および下部の剛性を向上させつつ、搬送通路の拡大を達成できる。
【００２２】
しかして、図１５は、別の実施例を示し、中央伝動ケース２１の下部伝動杆６３と縦伝動杆６５との間に連結フレーム７５を設け、中央伝動ケース２１の剛性を向上させたものである。
連結フレーム７５は、軸棒体により形成し、下部伝動杆６３と縦伝動杆６５とにより三角形状に形成し、互いが互いの強度メンバーとなるように構成する。
この場合、連結フレーム７５の下部は中央伝動ケース２１の下部伝動杆６３に固定するが、強度メンバーとしての強度を確保したうえで、下部ギヤボックス６４に可及的に近づけて固定すると、下側の穀稈搬送空間を狭くしないですみ、同様に、連結フレーム７５の上部は縦伝動杆６５の可及的下方位置に固定すると、穂先の搬送空間を狭くさせずに剛性を向上させられて好適である。
しかして、図１５は、別の実施例を示し、中央伝動ケース２１の下部伝動杆６３中間部と縦伝動杆６５の上下中間部との間に連結フレーム７５を設け、中央伝動ケース２１の剛性を向上させたものである。
したがって、アッパーフレーム７０を省略しても中央伝動ケース２１の振動を軽減させられ、株元および穂先の搬送通路を確保し、長稈適応性も向上でき、好適である。
【００２３】
また、アッパーフレーム７０を省略することで、刈取部５の高さは引起装置１１の引起ケース６１が最高部位置になって、刈取部５を上昇させたとき、操縦部４への圧迫感を減少させられる。
しかして、図１７は、引起装置１１の実施例を示し、引起装置１１の引起ケース６１内の上部には引起ラグ７６の先端軌跡に重なるようにゴム等の弾性部材により形成したガイド７７を設ける。ガイド７７はその左右両側を自由端部７８、７９に形成して正面視「ハ」の字形状に形成し、上昇側の引起ラグ７６の当たる上昇側自由端部７８の裏側には、押え部材８０を設ける。押え部材８０はガイド７７と該ガイド７７を引起ケース６１に取付けるステー８１との間の隙間に穂先が入るのを防止し、また、上昇側自由端部７８に引起ラグ７６が当たったときの移動量を規制することで振動騒音を減少させる。
この場合、押え部材８０はステー８１を折り曲げて形成し、ステー８１とガイド７７との間の隙間を閉塞してもよい。
また、下降側自由端部７９の引起ラグ７６が当たって逃げる側には押え部材８１を設ける。押え部材８１は、反転して下降するとき引起ラグ７６が当たって下降側自由端部７９が逃げたとき引起ケース６１のラバー８２に当たって生じる騒音を、下降側自由端部７９の逃げを規制することで、減少させる。
【００２４】
この場合、押え部材８１は引起ケース６１の下降側に設けたラバー８２を上方に延設させて形成すると、製造、組立てが容易になって好適である。
また、引起装置１１の引起ケース６１は、その前面形状を、平面視中央部８３が前側に位置し、側方に至るに従い後側になるように傾斜した傾斜面８４に形成すると、穀稈の引っ掛かりを減少させられ、好適である。
この場合、傾斜面８４の傾斜角度は、分草体１０の傾斜面に連続させて穀稈の移動の際に抵抗を与えないように形成すると、一層、穀稈の引っ掛かりを減少させられ、好適である。
即ち、引起装置１１の引起ケース６１にも分草性能を持たせることで、分草体１０と共に連続して穀稈が移動するようになり、分草引起性能が向上し、図１における分草ガイド体８５を不要にして軽量化を図れる。
なお、前記した各実施例は、理解を容易にするために、個別または混在させて、図示あるいは説明しているが、これらは夫々種々組合せ可能であり、これらの表現によって、構成・作用等が限定されるものではなく、また、相乗効果を奏する場合も勿論存在する。
【図面の簡単な説明】
【図１】コンバインの側面図。
【図２】同平面図。
【図３】刈取部のフレームの斜視図。
【図４】引継搬送装置部分の平面図。
【図５】同の背面図。
【図６】刈取部の概略図。
【図７】刈取部の搬送路の説明図。
【図８】刈取部の側面図。
【図９】刈取部の正面図。
【図１０】刈取部と機体カバーの位置関係を示す側面図。
【図１１】刈取部の中央伝動ケースの側面図。
【図１２】中央伝動ケースにガイド体を設けた側面図。
【図１３】同一部横断平面図。
【図１４】刈取部の他の実施例の正面図。
【図１５】刈取部の他の実施例の側面図。
【図１６】図１５の実施例の正面図。
【図１７】引起装置の実施例の一部縦断正面図。
【図１８】図１７の実施例の一部縦断側面図。
【図１９】図１７の実施例の一部横断平面図。
【図２０】図１７の実施例の課題を示す正面図。
【図２１】引起装置の実施例の一部縦断正面図。
【図２２】引起装置の実施例の平面図。
【図２３】図２２の実施例の側面図。
【図２４】図２２の実施例の正面図。
【符号の説明】
１…機体、２…走行装置、３…脱穀装置、４…操縦部、５…刈取部、７…基部横伝動ケース、８…支持台、９…刈取上下シリンダ、１０…分草体、１１…引起装置、１２…ラグ式掻込装置、１３…スターホイル、１４…根元搬送装置、１５…刈刃、１８…下部横伝動ケース、１９…刈取入力プーリ、２０…側部伝動ケース、２１…中央伝動ケース、２２…中間伝動ケース、２３…伝動軸、２４…伝動軸、２５…伝達軸、３０…穀稈供給搬送装置、３１…株元引継搬送装置、３２…穂先引継搬送装置、３３…引継搬送チエン、３４…引継挾扼杆、３５…駆動スプロケット、３６…従動スプロケット、３７…伝動フレーム、３８…回転軸、３９…フレーム、４０…回転軸、４１…逆Ｕ型支持フレーム、４２…取付台、４６…駆動スプロケット、４７…従動スプロケット、４８…ラグ付き搬送チエン、４９…引継搬送ラグ、５０…穀稈掻込体、５１…穀稈掻込体、５２…掻込爪、５３…掻込爪、５４…噛合部、５５…支持部材、５８…根元搬送チエン、５８ａ…根元搬送ラグ、６０…上下中間屈曲部、６１…引起ケース、６２…機体カバー、６３…下部伝動杆、６４…下部ギヤボックス、６５…縦伝動杆、６６…分草パイプ、６７…ガイド体、７０…アッパーフレーム、７１…左右側フレーム、７２…中間フレーム、７５…連結フレーム、７６…引起ラグ、７７…ガイド、７８…上昇側自由端部、７９…自由端部、８０…押え部材、８１…押え部材、８２…ラバー、８３…中央部分、８４…傾斜面。[0001]
[Industrial application fields]
The present invention provides a weeding body, a pulling device, a cutting blade, and a root conveying device to constitute a cutting part, and a grain is fed to a starting end of a cereal supply and conveying device that supplies cereal to a threshing device at the end of each root conveying device. The lower end of the vertical transmission frame is attached to the tip of the vertical support frame that is pivotably attached to the machine body, and the left and right and intermediate positions of the lower horizontal transmission case This relates to the harvesting part of the combine to which the lower part of the side transmission case and the central transmission case for transmitting rotation to the pulling device is attached.
[0002]
[Prior art]
Conventionally, a weeding body, a pulling device, a cutting blade, and a root conveying device are provided to constitute a cutting unit, and cereals are fed to a starting end of a cereal supply and feeding device that supplies cereals to a threshing device at the end of each root conveying device. Face the starting end of the takeover transfer device, and the cutting part is attached to the tip of the vertical support frame that is pivotally attached to the machine side, and the lower horizontal transmission case of the cutting part is attached to the left and right and intermediate positions of the lower horizontal transmission case. Is attached with a lower part of a side transmission case and a central transmission case for transmitting rotation to the pulling device, and the side transmission case and the central transmission case are inclined at a predetermined angle and an upper part of the pulling device and a lower lateral transmission case A configuration in which the two are linearly connected in a side view is known (see, for example, Patent Document 1).
.
[0003]
[Patent Document 1]
Japanese Patent Laid-Open No. 9-168325 (see FIG. 1)
[0004]
[Problems to be solved by the invention]
In the known device, the upper part of the pulling device inclined at a predetermined angle and the lower lateral transmission case are connected by a side transmission case having a linear shape in side view. It is necessary to provide a space in which the starting end of the apparatus moves up and down on the rear side of the pulling apparatus, and accordingly, there is a problem that the conveying posture of the cereals conveyed between the pulling apparatus and the conveying apparatus may be disturbed. .
In addition, there is also a problem that the entire length of the machine body is increased by providing a space in which the starting end portion of the conveying device for adjusting the handling depth is provided on the rear side of the pulling device.
The present application improves the reliability of conveyance and shortens the overall length of the fuselage in the takeover conveyance device passage between the conveying device of the reaping unit and the cereal supply and conveyance device that supplies the cereal to the threshing device. .
[0005]
OBJECT OF THE INVENTION
Ensuring the transport, supply, and takeover of cereals and shortening the overall length of the aircraft.
[0006]
[Means for Solving the Problems]
In the present invention, a cutting blade 15 is provided on the rear side of the plurality of weed bodies 10 and the pulling device 11, and cereals passing through a plurality of conveying paths from the left and right weed bodies 10 are respectively transferred to the rear side of the cutting blade 15. The root conveying device 14 is provided to constitute the cutting unit 5, and at the end of each root conveying device 14, the handling depth adjusting device that adjusts the handling depth by raising and lowering the starting end portion is used, and the threshing device 3 The starting end of the stock take-over transfer device 31 that takes over the cereals faces the starting end of the cereal supply and transfer device 30 that supplies the cereal to the lower side transmission case 18 of the reaping portion 5 so that it can be rotated to the machine body side. At the left and right and intermediate positions of the lower lateral transmission case 18, the lower side of the side transmission case 20 that transmits rotation to the pulling device 11 and the lower part of the central transmission case 21 are respectively attached. Side transmission case 20 and central transmission case 21 the top of and connected to the top of the ink case 61 of the inking unit 11, at least the side transmission case 20 of the said side transmission case 20 and the central transmission case 21, the front side upper end and the lower end on the upper and lower intermediate portions And the left and right side transmission cases 20 are formed so as to approach each other as they reach the upper side of the upper and lower intermediate bent portions 60 when viewed from the front. The vertical transmission rod 65 of the case 21 is connected to the upper portion of the pulling case 61 so as to be able to transmit rotation, and is arranged in a substantially parallel state on the rear side of the pulling case 61, and the lower portion of the vertical transmission rod 65 is the pulling case. 61 is fixed to a lower gear box 64 positioned below the lower portion of 61, and the ground is fixed to the lower lateral transmission case 18 in the lower gear box 64. Fixing the distal end of the lower transmission rod 63 to be substantially parallel, the lower gear box 64 is for the reaper Combine linked by the partial Sotai 10 min grass pipe 66 and the guide member 67 attached to the tip, When the traveling device 2 moves forward, the weeds are sown by each weed body 10, and the cereals that have been weeded by the weed body 10 are pulled up by the pulling device 11, pushed back by the star wheel 13, and cut by the cutting blade 15. The roots of the cut cereals are transported by each root transport device 14, and the cereals transported by each root transport device 14 adjust the handling depth position with the start end moving up and down the stock side. The holding position is changed and transferred to the stock take-over transfer device 31, and the tip side is transferred by the tip take-up transfer device 32, and the transferred cereal supply feeds cereal to the threshing device 3 Device 3 Passed to 0 and threshed.
Then, the rotation is transmitted to the pulling device 11 via the side transmission cases 20 erected on both the left and right sides of the lower lateral transmission case 18, and the upper and lower intermediate portions of the side transmission case 20 are formed in the upper and lower intermediate bent portions 60. Since the upper transmission case 20 is formed in a “<” shape with the upper and lower intermediate bent portions 60 positioned on the front side, the stock takeover transfer device 31 and the tip takeover transfer device 32 that move up and down at the start end are operated up and down. A space is formed behind the side transmission case 20, and the stock takeover transfer device 31 and the tip takeover transfer device 32 are positioned immediately behind the pulling device 11, so that not only the takeover is good, but also the overall length of the aircraft is shortened. To do.
Further, the left and right side transmission cases 20 are formed so as to approach each other as they reach the upper side of the upper and lower intermediate bent portions 60 when viewed from the front, so that the grains formed between the adjacent pulling devices 11 Even if the left and right side transmission cases 20 are closer to each other as the left and right side transmission cases 20 are located above the upper and lower intermediate parts, the eaves passage has an adverse effect on the raising by the raising lug 76 of the raising device 11 behind the raising case 61. In addition, the lower stocker side is formed between the adjacent pulling devices 11 so as to have a wide interval by standing up in a substantially vertical shape as the upper part of the side transmission case 20 approaches. It can be raised by the pulling lug 76 of the pulling device 11 that moves from the bottom to the top with the posture of the wheat straw passing through the wheat straw passage being good.
[0007]
【The invention's effect】
In the case of claim 1, the conveying posture is stabilized, spillage can be prevented, the takeover is improved, the overall length of the machine body can be shortened , the conveying passage is enlarged, and the conveying posture of the cereal can be stabilized.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 denotes a body frame, 2 denotes a traveling device, 3 denotes a threshing device provided at an upper position of the traveling device 2, and 4 denotes a maneuver provided at one position on the front side of the threshing device 3. Reference numerals 5 and 5 denote a cutting unit provided at a position in front of the threshing device 3 and the control unit 4.
The cutting part 5 is provided at the front end of the longitudinal support frame 6 in the front-rear direction, a base lateral transmission case 7 is provided at the base of the vertical support frame 6, and the base lateral transmission case 7 is rotatable on the support base of the body frame 1. Install. One end of a cutting upper and lower cylinder 9 is attached to an intermediate portion of the vertical support frame 6, the other end of the cutting upper and lower cylinder 9 is attached to the machine body side, and the cutting portion 5 is moved up and down by the cutting upper and lower cylinder 9.
10 is a weeding body provided in the cutting unit 5, 11 is a pulling device at the rear of each weeding body 10, 12 is a lug-type scraping device at the back of the pulling device 11, and 13 is a base side lower side of the lug-type scraping device 12. A star wheel provided at a position, 14 a root conveying device provided above the left and right star wheels 13, and 15 a cutting blade.
[0009]
Reference numeral 18 denotes a lower lateral transmission case provided at the tip of the vertical support frame 6, and the rotation of the engine transmitted to the cutting input pulley 19 is transmitted to each part of the cutting unit 5 by the transmission shaft in the vertical support frame 6. . 20 is a left and right side transmission case provided on the left and right sides of the lower lateral transmission case 18, and 21 is a central transmission case. Each of the left and right side transmission cases 20 and the central transmission case 21 is provided above the pulling device 11. The mounting and supporting member is also used as the rotation transmitting member.
A base portion of an upper and lower intermediate transmission case 22 is attached to the upper and lower intermediate portions of the left and right side transmission cases 20, and transmission shafts 23 and 24 are provided at the distal ends of the upper and lower intermediate transmission cases 22. The rotation is transmitted to the root conveying device 14. A transmission shaft 25 transmits the rotation to the cutting blade 15.
[0010]
On the rear side of the conveying path of the left and right root conveying devices 14, a stock takeover conveying device 31 and a tip takeover conveying device 32 that take over the conveyed cereals to the cereal supply conveying device 30 that supplies the threshing device 3 are provided. . The stock takeover transport device 31 includes a takeover transport chain 33 and a takeover rod 34. The takeover transport chain 33 hangs around the drive sprocket 35 and the driven sprocket 36. The drive sprocket 35 and the driven sprocket 36 are optional. Attach it to the fuselage by the means described above. As an example, the drive sprocket 35 is fixed to a rotating shaft 38 of a part of the base lateral transmission case 7 or the transmission frame 37 provided on the base lateral transmission case 7, and the driven sprocket is attached to a frame 39 provided on the transmission frame 37. 36 is attached by a rotating shaft 40.
The takeover rod 34 is elastically attached to a mounting base 42 provided at the tip of an inverted U-shaped support frame 41 having a base portion fixed to the machine body, and moves in a distance with respect to the takeover conveyance chain 33. And elastically touch the cereals being transported.
[0011]
The starting end portion of the stock takeover conveying device 31 is side-view-polymerized at the end portion of the root conveying device 14 to ensure delivery of the cereals conveyed by the root conveying device 14. Further, the transmission frame 37 is rotatably attached to the base lateral transmission case 7 so that the starting end portion of the stock takeover transport device 31 can be adjusted up and down, and is also used as a handling depth adjustment device.
The tip take-up transfer device 32 is provided above the stock take-up transfer device 31. The tip take-up transport device 32 hangs a transport chain with lugs 48 around a drive sprocket 46 provided on a case frame 45 attached to the machine body side and a driven sprocket 47 provided on the front end side of the case frame 45, thereby transporting with lugs. A take-up conveyance lug 49 is attached to the chain 48 so as to be raised and lowered at a predetermined interval. In the embodiment, the case frame 45 is attached to the transmission frame 37 side, and is configured such that the start end portion of the tip take-up transfer device 32 moves up and down in conjunction with the vertical movement of the start end portion of the stock takeover transfer device 31. Although not shown, the case frame 45 is provided with a standing guide for holding the take-up transport lug 49 in an upright state and a fall-down guide for lying down to store the take-up transport lug 49 at predetermined positions.
[0012]
Thus, the cereals that have been weeded by the weed bodies 10 arranged side by side on the right and left and are raised by the pulling device 11 are cut at the roots by the cutting blades 15 in a parallel state, and a plurality of the weed bodies arranged in parallel as they are. The transport path H that continues from 10 is transported by the root transport device 14, and the cereals that have been transported through the transport paths H merge together and are taken over by the stock takeover transport device 31 and the tip takeover transport device 32.
A pair of corn straw scrapers (star wheels) 50 and 51 are provided in the takeover conveyance path G through which the corn mashes joined through the respective conveyance paths H are conveyed. The cereal scrapes 50 and 51 are formed in a disc shape, and a plurality of squeezing claws 52 and 53 are formed on the periphery at predetermined intervals, respectively. 52 and 53 mesh with each other, and the claw 52 and the claw 53 are engaged with each other to stir the cereal.
The drive grain scraper 50 is attached to the upper end of the rotary shaft 40, the rotary shaft 40 is mounted on a support member 55, and the lower portion of the support member 55 is fixed to a frame 39 on which the rotary shaft 40 is mounted. Then, the rotation of the take-up transport chain 33 is transmitted via the rotary shaft 40 and is driven to rotate.
[0013]
Further, the driven cereal scraper 51 is rotated by meshing with the drive cereal scraper 50, and the driven cereal scraper 51 engaged with the drive cereal scraper 50 is attached to the tip of the mounting frame 58. The base of the mounting frame 58 is mounted on a mounting base 42 provided on the inverted U-shaped support frame 41.
The drive claw 52 of the drive grain crusher 50 and the driven claw 52 of the driven grain crusher 51 and the meshing part 54 of the driven claw 53 are provided in the takeover conveyance path G where the conveyance paths H merge, The cereals conveyed from H are smoothly joined together.
In other words, the drive cereal scraper 50 and the driven cereal scraper 51 are respectively located on the left and right sides in the transport direction of the take-up transport path G where the plurality of transport paths H merge, The claws 53 rotate in the conveying direction from the upper side to the lower side to scrape the cereals, and the driving cereal scraper 50 and the driven cereal scraper 51 merge from the transport path H and transport in the takeover transport path G. In particular, the squeezing action at the merging portion of the transport passage H prevents problems such as pinching and biting of cereals, and prevents clogging. Smooth and reliable transport in G.
[0014]
In this case, the meshing portion 54 portion of the drive claw 52 and the driven claw 53 has a predetermined length in front and back instead of one point in the conveyance direction. Similarly, the takeover conveyance path G also has a predetermined length in the conveyance direction. Since it has a length, neither the meshing portion 54 nor the joining portion of the transport passage H points to a single place, and has a predetermined length (width or range), and is within this range. By arranging the meshing portion 54, the cereals conveyed from the conveyance path H may be smoothly merged.
In other words, in the embodiment, the root transport devices 14 are provided on the left and right, and the place where the root transport chains 58 of the root transport device 14 approach each other is the start end portion of the takeover transport passage G, and in the vicinity of the start end portion of the takeover transport passage G. When the meshing portion 54 is positioned, it is preferable that the transported culm from the left and right transport passages H is smoothly scraped and transported by the drive cereal scraper 50 and the driven cereal scraper 51.
Note that the root transport device 14 of FIG. 1 is formed on a root transport lug 59a on the left side instead of the root transport chain 59 to suppress noise generation.
[0015]
Further, the tip trajectories (on the conveyance upper side) of the drive claw claw 52 and the driven claw claw 53 of each of the drive cereal scraper 50 and the driven cereal scraper 51 are the start end or the root of the takeover conveyance path G. If the root transport chain 59 (the root transport lug 59a) of the transport device 14 is positioned on the upper side in the transport direction from the place where they approach each other, the delivery of the cereal transport by the root transport device 14 becomes smoother and more reliable. The transport (delivery) posture is stable and good, and spillage can be suppressed and prevented. In other words, even if the meshing portion 54 is positioned in the take-up conveyance path G, the tip trajectories of the driving claw 52 and the driven claw 53 are overlapped with the end of each conveyance path H, thereby improving the scraping performance. It is done.
In addition, when viewed from the front of the takeover conveyance path G, the meshing portion 54 of the drive cereal scraper 50 and the driven cereal scraper 51 is placed in the moving path through which the takeover transport lug 49 of the tip takeover transport device 32 passes. Positioning it is preferable because the conveying posture is stable and spillage can be prevented.
[0016]
That is, by positioning the meshing portion 54 of the drive cereal scraper 50 and the driven cereal scraper 51 below the moving path of the working area of the takeover transport lug 49, the stock source of the cereals being transported by the tip is transferred. It is pinched reliably by the drive corn straw scraping body 50 and the driven grain straw picking body 51, and the conveyance guide (scratching) action is also improved.
Further, when viewed from the front of the takeover conveyance passage G, the movement trajectory of the tip of the takeover conveyance lug 49 of the tip takeover conveyance device 32 with respect to the meshing portion 54 of the drive grain kneading body 50 and the driven grain kneading body 51 is If it is positioned so as to protrude toward the opposite side of the case frame 45, the conveyance path is widened, the conveyance posture is stabilized, the conveyance guide on the tip side is also improved, and spillage can be prevented.
In addition, the pitch of the drive claw 52 of the drive cereal scraper 50 and the driven claw 53 of the driven cereal scraper 51 is made small with respect to the pitch of the takeover conveyance lug 49 of the tip takeover conveyance device 32. To do. In this case, the same number of rotations is transmitted from the rotary shaft 40 to both the take-up conveying lug 49 and the drive claw 52, but the drive claw 52 of the drive cereal scraper 50 and the follower of the driven cereal scraper 51 are driven. By making the pitch of the picking claws 53 small, the number of times of contact (scratching) of each of the picking claws 52 and 53 with respect to the cereals becomes larger than that of the take-up conveyance lug 49, and the picking performance is improved. The holding force is improved, the conveying posture is stabilized, and spillage can be prevented, which is preferable.
[0017]
Thus, the side transmission case 20 is formed with the upper and lower intermediate bent portions 60 at the upper and lower intermediate portions thereof. The lower part of the side transmission case 20 is attached to the lower lateral transmission case 18 and is inclined so as to be positioned on the front side from the lower end of the side transmission case 20 to the upper and lower intermediate bent part 60, and above the upper and lower intermediate bent part 60. The side transmission case 20 is inclined so as to be positioned on the rear side along the rear of the pulling case 61 of the pulling device 11 and reaching the upper part, and the side transmission case 20 is bent into a “<” shape when viewed from the side. Form. Therefore, the delivery of the cereal conveyance by the root conveyance device 14 becomes smooth and reliable, the conveyance (delivery) posture becomes stable and good, and spillage can be suppressed and prevented.
That is, the side transmission case 20 is formed to be bent in a “<” shape when viewed from the side, so that the drive cereal scraper 50 and the driven cereal scraper 51 are connected to the end of the transport path of the root transport device 14. Can be positioned close to or above the terminal end, and the conveyance can be improved.
[0018]
In particular, the side transmission case 20 is formed by being bent into a “<” shape when viewed from the side, so that the root transfer device 14 between the pulling device 11, the stock takeover transfer device 31 and the tip transfer transfer device 32 is provided. The head transfer device 31 is omitted, and the starting end of the stock takeover transfer device 31 that also serves as a handling depth adjusting device can be disposed in the vicinity of the end of the root transfer device 14, and the stock takeover transfer device 31 and the tip A space where the start end portion of the takeover conveying device 32 can approach the vicinity of the rear side of the pulling device 11 can be provided, which is preferable.
That is, in the configuration of the conventional cutting unit 5, the tip transport device is provided above the root transport device 14 between the pulling device 11, the stock takeover transport device 31 and the tip takeover transport device 32. Further, the tip conveying device above the root conveying device 14 can be omitted, the weight can be reduced, the overall length of the machine body can be shortened, and the entire size can be reduced.
In addition, the upper and lower intermediate bent portions 60 of the side transmission case 20 on the right side in the traveling direction of the side transmission cases 20 are provided at positions corresponding to the side surface shape of the body cover 62 provided on the front side of the control unit 4. The side view body cover 62 is configured to be positioned in the front space from the line connecting the attachment position of the lower portion of the side transmission case 20 and the connecting portion of the pulling device 11 at the upper portion of the side transmission case 20.
Therefore, when the cutting unit 5 is rotated up and down, interference between the cutting unit 5 and the body cover 62 can be prevented, so that the cutting unit 5 can be brought to the front of the control unit 4 and the front of the control unit 4 The machine body width and the total length can be made compact while realizing full-cut mowing capable of harvesting cereal grains.
[0019]
Thus, the upper portions of the left and right side transmission cases 20 are connected to the upper portion of the pulling device 11, but the lower portions of the left and right side transmission cases 20 are positioned outside the connection portion between the upper portion and the pulling device 11, When viewed from the front, the side transmission case 20 above the upper and lower intermediate bent portion 60 is formed to be inclined inward as it reaches the upper end.
Therefore, the lower part of the left and right side transmission cases 20 can be widened in the left-right distance (space), the conveyance path can be enlarged to facilitate the conveyance, and the upper part of the side transmission case 20 is the upper rear part of the pulling device 11 Connect to to transmit rotation.
Thus, the central transmission case 21 fixes the base of the lower transmission rod 63 to the lower lateral transmission case 18 so as to be substantially parallel to the ground during normal cutting operations, and the front end of the lower transmission rod 63 is the herbaceous body 10. The lower gear box 64 is fixed to the lower gear box 64 at the lower part of the rear side, and the lower gear box 64 is attached with a lower part of the vertical transmission rod 65 positioned substantially parallel to the rear side of the pulling case 61 of the pulling device 11. The upper part is connected to the upper part of the pulling case 61 of the pulling device 11 so as to be able to transmit rotation.
[0020]
In this case, the weed body 10 is attached to the tip of the weed pipe 66, the base of the weed pipe 66 is bent upward and fixed to the pulling case 61, and between the weed pipe 66 and the central transmission case 21. A guide body 67 is provided in the gap. The guide body 67 is formed in a vertical plate shape and is provided so as to be positioned above the lower gear box 64 from directly above the bent portion 68 of the weed pipe 66, and in particular, between the lower gear box 64 and the weed pipe 66. Prevent clogging of cereals.
Therefore, the central transmission case 21 is configured such that the longitudinal transmission rod 65 is positioned on the rear side of the pulling case 61 of the central pulling device 11 and the lower transmission rod 63 is positioned lower and on the lower rear side of the herbaceous body 10. The lower gear box 64 portion of the central transmission case 21 can be connected to the weed pipe 66 through the guide body 67 while avoiding interference with the grain straws being conveyed, and the weed pipe 66 and the pulling device 11 of the weed body 10 can be connected. The pulling case 61 and the longitudinal transmission rod 65 of the central transmission case 21 are configured as strength members that are connected to each other.
Therefore, the guide body 67 prevents the waste from being caught or wound while improving the strength of the central transmission case 21.
[0021]
Accordingly, a reinforcing upper frame 70 is provided above the upper part of the pulling case 61 of the left and right pulling devices 11. The upper frame 70 is formed in an inverted U shape, is positioned above the pulling case 61 of the central pulling device 11 with a predetermined interval, and the lower portions of the left and right frames 71 are respectively pulled up by the pulling case of the left and right pulling devices 11. The lower part of the intermediate frame 72 which is connected and fixed to the upper part of the 61 and provided in the left and right intermediate part of the upper frame 70 is connected to the upper part of the pulling case 61 of the central pulling device 11.
Thereby, even when the shape of the central central transmission case 21 is adopted in which the lower transmission rod 63 is positioned at the lower rear side of the weed body 10 and lower than the lower gear box 64 and the conveyance path is enlarged. The strength of the upper support structure of the central transmission case 21 can be improved, and the upper part of the pulling case 61 of each pulling device 11 is connected, so that a long conveying path can be secured.
Therefore, when combined with the configuration in which the guide body 67 is provided, it is possible to further increase the rigidity of the upper and lower portions of the pulling case 61 of each pulling device 11 and enlarge the conveyance path.
[0022]
FIG. 15 shows another embodiment, in which a connecting frame 75 is provided between the lower transmission rod 63 and the vertical transmission rod 65 of the central transmission case 21 to improve the rigidity of the central transmission case 21. is there.
The connection frame 75 is formed by a shaft rod body, is formed in a triangular shape by the lower transmission rod 63 and the vertical transmission rod 65, and is configured such that they are mutually strength members.
In this case, the lower part of the connecting frame 75 is fixed to the lower transmission rod 63 of the central transmission case 21, but if the strength as a strength member is secured and fixed as close as possible to the lower gear box 64, the lower side Similarly, if the upper part of the connecting frame 75 is fixed to the lower position of the longitudinal transmission rod 65 as much as possible, the rigidity can be improved without narrowing the conveying space of the tip. It is.
FIG. 15 shows another embodiment, in which a connecting frame 75 is provided between the middle portion of the lower transmission rod 63 of the central transmission case 21 and the upper and lower middle portion of the vertical transmission rod 65, and the rigidity of the central transmission case 21 is increased. Is an improvement.
Therefore, even if the upper frame 70 is omitted, the vibration of the central transmission case 21 can be reduced, the conveyance path for the stock and the tip can be secured, and the adaptability to the long bush can be improved.
[0023]
Further, by omitting the upper frame 70, the height of the cutting unit 5 is such that when the pulling case 61 of the pulling device 11 is at the highest position and the cutting unit 5 is raised, the feeling of pressure on the control unit 4 is increased. Reduced.
FIG. 17 shows an embodiment of the pulling device 11, and a guide 77 formed of an elastic member such as rubber is provided on the upper portion of the pulling case 61 of the pulling device 11 so as to overlap the tip locus of the pulling lug 76. . The left and right sides of the guide 77 are formed at the free ends 78 and 79 so as to form a “C” shape when viewed from the front, and a pressing member is provided on the back side of the rising side free end 78 against which the rising lug 76 contacts. 80 is provided. The presser member 80 prevents the tip from entering the gap between the guide 77 and the stay 81 that attaches the guide 77 to the pulling case 61, and moves when the pulling lug 76 hits the free end 78 on the rising side. By controlling the amount, vibration noise is reduced.
In this case, the pressing member 80 may be formed by bending the stay 81 to close the gap between the stay 81 and the guide 77.
In addition, a pressing member 81 is provided on the side of the descending free end 79 where the pulling lug 76 hits and escapes. The holding member 81 regulates the escape of the descending free end 79 by the noise generated when it strikes the rubber 82 of the raising case 61 when the descending free end 79 escapes when the pulling lug 76 hits when it is lowered and lowered. And decrease.
[0024]
In this case, it is preferable that the pressing member 81 is formed by extending a rubber 82 provided on the lowering side of the pulling case 61 upward so as to facilitate manufacture and assembly.
Further, when the pulling case 61 of the pulling device 11 is formed on the inclined surface 84 that is inclined so that the central portion 83 in the plan view is located on the front side and becomes the rear side as it reaches the side, It is possible to reduce the catch and is preferable.
In this case, if the inclination angle of the inclined surface 84 is formed so as to be continuous with the inclined surface of the herbaceous body 10 so as not to give resistance during the movement of the cereal, the hook of the cereal can be further reduced. is there.
That is, by providing the raising case 61 of the pulling device 11 with the weeding performance, the cereals move continuously with the weeding body 10, the weeding raising performance is improved, and the weeding guide in FIG. It is possible to reduce the weight by eliminating the body 85.
Each of the above-described embodiments is illustrated or described individually or mixed for easy understanding, but these can be combined in various ways, and the expression, configuration, action, etc. It is not limited, and there are of course cases where a synergistic effect is obtained.
[Brief description of the drawings]
FIG. 1 is a side view of a combine.
FIG. 2 is a plan view of the same.
FIG. 3 is a perspective view of a frame of a cutting unit.
FIG. 4 is a plan view of a takeover conveyance device portion.
FIG. 5 is a rear view of the same.
FIG. 6 is a schematic view of a cutting part.
FIG. 7 is an explanatory diagram of a conveyance path of a cutting unit.
FIG. 8 is a side view of a cutting part.
FIG. 9 is a front view of a cutting part.
FIG. 10 is a side view showing the positional relationship between the cutting part and the body cover.
FIG. 11 is a side view of a central transmission case of a cutting part.
FIG. 12 is a side view in which a guide body is provided in the central transmission case.
FIG. 13 is a cross-sectional plan view of the same part.
FIG. 14 is a front view of another embodiment of the cutting unit.
FIG. 15 is a side view of another example of a cutting unit.
16 is a front view of the embodiment of FIG.
FIG. 17 is a partially longitudinal front view of an embodiment of the pulling device.
18 is a partially longitudinal side view of the embodiment of FIG.
FIG. 19 is a partially cross-sectional plan view of the embodiment of FIG.
FIG. 20 is a front view showing the problem of the embodiment of FIG. 17;
FIG. 21 is a partially longitudinal front view of an embodiment of the pulling device.
FIG. 22 is a plan view of an embodiment of the pulling device.
FIG. 23 is a side view of the embodiment of FIG.
24 is a front view of the embodiment of FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Airframe, 2 ... Traveling device, 3 ... Threshing device, 4 ... Steering part, 5 ... Cutting part, 7 ... Base side transmission case, 8 ... Support stand, 9 ... Cutting top and bottom cylinder, 10 ... Weeding body, 11 ... Pull Device: 12 ... Rug type scraping device, 13 ... Star wheel, 14 ... Root conveying device, 15 ... Cutting blade, 18 ... Lower lateral transmission case, 19 ... Cutting input pulley, 20 ... Side transmission case, 21 ... Central transmission Case: 22 ... Intermediate transmission case, 23 ... Transmission shaft, 24 ... Transmission shaft, 25 ... Transmission shaft, 30 ... Grain supply / conveyance device, 31 ... Stock takeover conveyance device, 32 ... Tip takeover conveyance device, 33 ... Takeover conveyance Chain 34 ... Takeover rod 35 ... Drive sprocket 36 ... Drive sprocket 37 ... Transmission frame 38 ... Rotating shaft 39 ... Frame 40 ... Rotating shaft 41 ... Reverse U-shaped support frame 42 ... Mounting base , 46 ... Drive sprocket, 4 ... driven sprocket, 48 ... transport chain with lug, 49 ... takeover transport lug, 50 ... cereal scraper, 52 ... squeeze nail, 53 ... squeeze claw, 54 ... meshing part, 55 ... Support member, 58 ... Root transport chain, 58a ... Root transport lug, 60 ... Upper and lower intermediate bent portions, 61 ... Lifting case, 62 ... Airframe cover, 63 ... Lower transmission rod, 64 ... Lower gear box, 65 ... Vertical transmission杆, 66 ... weed pipe, 67 ... guide body, 70 ... upper frame, 71 ... left and right side frame, 72 ... intermediate frame, 75 ... connecting frame, 76 ... pulling lug, 77 ... guide, 78 ... ascending side free end , 79 ... Free end, 80 ... Presser member, 81 ... Presser member, 82 ... Rubber, 83 ... Central portion, 84 ... Inclined surface.

Claims

A cutting blade (15) is provided on the rear side of the plurality of weed bodies (10) and the pulling device (11), and a plurality of conveying paths from the left and right weed bodies (10) are provided on the rear side of the cutting blade (15). A root conveying device (14) that conveys each passing cereal is provided to constitute a cutting part (5), and a treatment depth that adjusts the treatment depth by moving the start end up and down at the end of each root conveying device (14). The start-up part of the stock take-over transfer device (31) that takes over the cereal at the start end of the cereal supply and transfer device (30) that also serves as a thickness adjusting device and supplies the cereal to the threshing device (3) The lower horizontal transmission case (18) of the cutting part (5) is attached to the tip of a vertical support frame (6) that is rotatably attached to the machine body side, and is located at the left and right and intermediate positions of the lower horizontal transmission case (18). A side transmission case (20) and a central transmission case (21) for transmitting rotation to the pulling device (11) The upper part of the side transmission case (20) and the central transmission case (21) is connected to the upper part of the pulling case (61) of the pulling device (11), and the side transmission case (20). And at least the side transmission case (20) of the central transmission case (21) has upper and lower intermediate bent portions (60) at the upper and lower intermediate portions so as to be positioned in front of the upper and lower ends, and the left and right sides. The part transmission cases (20) are formed so as to approach each other as they reach the upper part of the upper and lower intermediate bent parts (60) when viewed from the front, and the longitudinal transmission rods (65) of the central transmission case (21) are raised. The upper part of the case (61) is connected to the upper part of the case (61) so as to be able to transmit rotation, and is arranged in a substantially parallel state on the rear side of the pulling case (61). Below the bottom The lower transmission box (63) is fixed to the lower gear box (64), and the lower gear box (64) has a base portion fixed to the lower lateral transmission case (18) and is substantially parallel to the ground during normal cutting operation. ), And the lower gear box (64) is a combine cutting unit in which the weed pipe (66) with the weed body (10) attached to the tip is connected by a guide body (67) .