JP2004166582A

JP2004166582A - Reaping part of combine harvester

Info

Publication number: JP2004166582A
Application number: JP2002335829A
Authority: JP
Inventors: Koji Okumoto; 康治奥本; Masayuki Anami; 雅之阿波; Kazuharu Kiyasu; 一春喜安; Takeshi Takekata; 毅武方; Hisayuki Satoji; 久幸里路; Manabu Saito; 学斎藤; Shizuo Niimi; 静雄新見; Takeshi Kato; 武史加藤
Original assignee: Iseki and Co Ltd; Iseki Agricultural Machinery Mfg Co Ltd
Current assignee: Iseki and Co Ltd; Iseki Agricultural Machinery Mfg Co Ltd
Priority date: 2002-11-19
Filing date: 2002-11-19
Publication date: 2004-06-17
Anticipated expiration: 2022-11-19
Also published as: JP4158497B2

Abstract

<P>PROBLEM TO BE SOLVED: To improve the certainty of transportation in a passage of a take-over and transporting apparatus between a transporting apparatus of a reaping part and a grain culm feeding and transporting apparatus for feeding grain culms to a threshing apparatus of a combine harvester and shorten the full length of the machine body. <P>SOLUTION: The reaping part 5 of the combine harvester is composed by installing a reaping blade 15 on the rear side of a plurality of grass dividers 10 and a raising up apparatus 11 and installing a root transporting apparatus 14 for transporting the grain culms from the left and right grass dividers 10, respectively on the rear side of the reaping blade 15. The starting end of a plant foot take-over and transporting apparatus 31 vertically moving the starting end, regulating the threshing depth and taking over the grain culms to the starting end of the grain culm feeding and transporting apparatus 30 faces to the terminal end of each root transporting apparatus 14. A lower transverse transmission case 18 of the reaping part 5 is mounted on the tip of a vertical supporting frame 6 freely rotatably mounted on the machine body side. The lower parts of lateral transmission cases 20 and the central transmission case 21 for transmitting rotation to the raising up apparatuses 11 are mounted on the left and right and intermediate positions of the lower transverse transmission case 18, respectively. The upper parts of the transmission cases 20 and 21 are connected to the upper parts of the case 61 of the raising up apparatuses 11. Upper and lower intermediate bent parts 60 are formed in the upper and lower intermediate parts of at least the lateral transmission cases 20 in the transmission cases 20 and 21 so as to be located on the front side of the upper and lower ends thereof. <P>COPYRIGHT: (C)2004,JPO

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。
本発明は、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たコンバインの刈取部としたものであり、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。
本発明は、前記刈取部５の後方一側には操縦部４を設け、前記側部伝動ケース２０のうち操縦部４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したコンバインの刈取部としたものであり、側部伝動ケース２０のうち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は操縦部４の前側に設けた機体カバー６２に合わせた位置に設けているので、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を位置させて、機体全長を短くし、また、刈取部５を上昇させたときは上下中間屈曲部６０が機体カバー６２を避けて上昇するので、平面視において操縦部４の前方に引起装置１１の引起ケース６１の非作用側を寄せることができ、刈取部５の刈幅を変更することなく機体の左右幅を短くする。
本発明は、前記刈取部５は、各根元搬送装置１４の上方の位置固定の穂先搬送装置を省略し、各根元搬送装置１４の複数の搬送通路の合流部に、始端部を上下させて扱深さ調節装置を兼用する株元引継搬送装置３１を設け、該株元引継搬送装置３１の始端部に縦軸回転の一対の穀稈掻込体５０の掻込爪５２と穀稈掻込体５１の掻込爪５３との噛合部５４を設けたコンバインの刈取部としたものであり、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、引き起こされた穀稈の中間部がスターホイル１３により後方に掻込まれ、略同時に刈刃１５により株元側が切断され、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、穂先側は穀稈掻込体５０と穀稈掻込体５１により搬送されて、株元引継搬送装置３１に株元側が扱深さを調節した挟持位置で引き継ぎ、各根元搬送装置１４の上方の位置固定の穂先搬送装置を省略し、穂先側は穂先引継搬送装置３２により引き継ぎ搬送され、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。
したがって、各根元搬送装置１４の上方の位置固定の穂先搬送装置を省略して軽量化を図りつつ、穀稈掻込体５０と穀稈掻込体５１により穂先搬送装置を兼用してコストを低くし、また、機体全長も短くする。
【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る。
請求項２の場合、前記効果に加えて、搬送通路を拡大し、穀稈の搬送姿勢を安定させられる。
請求項３の場合、前記効果に加えて、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の前方に刈取部５を位置させて、操縦部４の前方の穀稈の刈取も行える全面刈りを実現しつつ、機体全長をコンパクトにできる。
請求項４の場合、前記効果に加えて、根元搬送装置１４の上方の位置固定の穂先搬送装置を省略し、コストを低くし、軽量化でき、機体の全長も短くできる。
【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 applications]
The present invention provides a cutting section by providing a weeding body, a raising device, a cutting blade, and a root conveying device, and a cereal culm feeding and conveying device that supplies cereals to a threshing device at the end of each root conveying device. Facing the start end of the handover transfer device that takes over the culm, the reaping unit is attached to the tip of a vertical support frame that is rotatably mounted on the fuselage side, the lower horizontal transmission case of the reaping unit is attached, the left and right and middle positions of the lower horizontal transmission case The present invention relates to a reaping unit of a combine having a lower part of a side transmission case and a lower part of a center transmission case for transmitting rotation to a raising device.
[0002]
[Prior art]
Conventionally, a mowing part is configured by providing a weeding body, a raising device, a cutting blade, and a root conveying device, and a cereal culm is provided at a starting end of a cereal culm supply conveying device that supplies a cereal culm to a threshing device at an end of each root conveying device. Facing the start end of the takeover transfer device to be taken over, the cutting unit is attached to the lower lateral transmission case of the cutting unit at the tip of a vertical support frame rotatably mounted on the machine body side, and at the left, right, and intermediate positions of the lower horizontal transmission case. The lower part of the side transmission case and the center transmission case that transmits rotation to the raising device is attached, and the side transmission case and the center transmission case are upper and lower side transmission cases of the raising device inclined at a predetermined angle. A configuration in which the members are connected linearly in a side view is known (for example, see Patent Document 1).
.
[0003]
[Patent Document 1]
Japanese Patent Application Laid-Open No. 9-168325 (see FIG. 1)
[0004]
[Problems to be solved by the invention]
In the known device, the upper and lower lateral transmission cases of the raising device inclined at a predetermined angle are connected by a side transmission case having a linear shape in a side view. It is necessary to provide a space in which the starting end of the device moves up and down on the rear side of the raising device, and accordingly, there is a problem that the transport posture of the grain stalk transported between the raising device and the transport device may be disturbed. .
Also, there is a problem that the entire length of the machine body becomes longer by the space provided at the rear side of the raising device, where the starting end of the transfer device for adjusting the handling depth rises and falls.
The present application improves the certainty of conveyance in a takeover conveyance device passage between a conveyance device of a reaping unit and a grain culm supply conveyance device that supplies a grain culm to a threshing device, and furthermore, shortens the overall length of the machine. .
[0005]
[Object of the invention]
Ensuring the transportation, supply and transfer of grain culm and shortening the overall length of the machine.
[0006]
[Means for Solving the Problems]
According to the present invention, a cutting blade 15 is provided on the rear side of the plurality of weeds 10 and the raising device 11, and grain culms passing through the plurality of transport passages from the left and right weeds 10 are respectively conveyed to the rear side of the cutting blade 15. The cutting unit 5 is constituted by providing a root conveying device 14 to be used, and at the end of each of the root conveying devices 14, a handling depth adjusting device that adjusts a handling depth by raising and lowering a starting end thereof is used, and the threshing device 3 is provided. With the starting end of the stock transfer system 31 taking over the cereal stem facing the starting end of the cereal feeding and conveying device 30 for supplying the cereals, the lower lateral transmission case 18 of the cutting unit 5 is rotatable toward the machine body. And a lower portion of a side transmission case 20 and a lower portion of a central transmission case 21 for transmitting rotation to the raising device 11 are mounted at left, right, and intermediate positions of the lower horizontal transmission case 18, respectively. Side transmission case 20 and central transmission cable The upper part of the upper case 21 is connected to the upper part of the raising case 61 of the raising device 11, and at least the side transmission case 20 of the side transmission case 20 and the center transmission case 21 is located at the upper and lower middle part thereof at the front of the upper and lower ends. It is a harvester of a combine having an upper and lower middle bent portion 60 formed so as to be located at a position. When the traveling device 2 moves forward, the culm stalked by the weeds 10 is culled by the weeds 10. Raised by the raising device 11, raked backward by the star wheel 13, cut by the cutting blade 15, and the root of the cut cereal stem is transported by each root transport device 14 and transported by each root transport device 14. The culm is transferred to the stock-takeover transfer device 31 whose starting end moves up and down on the base of the stock to adjust the handling depth position, and is transferred and conveyed. Is conveyed by feed device 32, it conveyed culms are threshing been taken over by the culms supply transport device 30 for supplying culms threshing apparatus 3.
Then, the rotation is transmitted to the raising device 11 through the side transmission cases 20 that stand on the left and right sides of the lower horizontal transmission case 18, and the upper and lower intermediate portions of the side transmission cases 20 are formed in the upper and lower intermediate bent portions 60, Since the upper and lower intermediate bending portions 60 are formed in the shape of a "ku" with the upper and lower intermediate bending portions 60 located on the front side, the stock transfer device 31 and the tip transfer device 32 whose starting ends rise and fall operate. A space is formed behind the side transmission case 20, and the stock takeover transfer device 31 and the head transfer device 32 are located immediately behind the raising device 11, which not only improves the transfer but also shortens the overall length of the machine. I do.
According to the present invention, the left and right side transmission cases 20 are combined harvesters formed so as to approach each other as they reach above the upper and lower middle bent portions 60 when viewed from the front. In the cereal culm passage formed between the upper case 11 and the upper spike side, even if the left and right side transmission cases 20 are closer to each other as they are higher than the upper and lower middle portions, the raising device 11 is raised behind the raising case 61. It does not adversely affect the raising by the lugs 76, and the lower base side is formed in a substantially vertical shape by the approach of the upper portion of the side transmission case 20 to form a wide space so that the adjacent raising can be performed. The posture of the grain stalk passing through the grain stalk passage formed between the apparatus and the apparatus 11 can be improved by the raising lug 76 of the raising apparatus 11 moving upward from below.
In the present invention, a steering section 4 is provided on one rear side of the mowing section 5, and a vertical intermediate bending section 60 of the side transmission case 20 on the steering section 4 side of the side transmission case 20 is provided with the steering section 4. Is provided at a position corresponding to the body cover 62 provided on the front side of the side transmission case 20, and a side view in a front space from a line connecting a mounting position of a lower portion of the side transmission case 20 and a connection portion of the raising device 11 at an upper portion of the side transmission case 20. It is a combine harvester configured so that the fuselage cover 62 is located, and the upper and lower middle bending portion 60 of the side transmission case 20 on the right side in the traveling direction of the side transmission case 20 is located on the front side of the control unit 4. Since it is provided at a position corresponding to the provided body cover 62, a side view in a space in front of a line connecting a mounting position of a lower portion of the side transmission case 20 and a connection portion of the raising device 11 on an upper portion of the side transmission case 20. Position the fuselage cover 62 As a result, when the reaper 5 is raised, the upper and lower intermediate bent portions 60 are raised while avoiding the body cover 62, so that the raising device 11 is raised in front of the control unit 4 in a plan view. The non-operating side of the case 61 can be moved closer, and the lateral width of the machine body can be reduced without changing the cutting width of the cutting unit 5.
According to the present invention, the mowing unit 5 omits the position-fixed spike transporting device above each root transporting device 14 and handles the confluence of the plurality of transporting paths of each root transporting device 14 by raising and lowering the start end. A stock transfer device 31 serving also as a depth adjusting device is provided, and at the start end of the stock transfer device 31, a scraping claw 52 of a pair of cereal stem scraping members 50 rotating in the longitudinal axis and a grain stem scraping device. 51 is a harvesting part of a combine provided with a meshing part 54 with a raking claw 53 of 51. The weeds are planted by each weeding body 10, and the culm stalked by the weeding body 10 is raised by the raising device 11. The middle part of the raised cereal stem is scraped rearward by the star wheel 13, the root side is cut by the cutting blade 15 at substantially the same time, and the root of the cut cereal stem is conveyed by each root conveying device 14, The tip side is conveyed by a grain stalk scraping body 50 and a grain stalk scraping body 51, The stocker side takes over to the handover transport device 31 at the clamping position where the handling depth is adjusted, omits the position-fixed head carrier device above each root carrier device 14, and the head side is handed over by the head handover transport device 32, The transported grain culm is thawed by the grain culm supply and transport device 30 that supplies the grain culm to the threshing device 3.
Therefore, while reducing the weight by omitting the position-fixed tip-tip transporting device above each root transporting device 14, the cost is reduced by using the grain-tip scraping body 50 and the grain-culm scraping body 51 as the tip-tip transporting device. And also reduce the overall length of the aircraft.
[0007]
【The invention's effect】
In the case of the first aspect, the transporting posture is stable, spilling of the culm can be prevented, good takeover is achieved, and the overall length of the body can be shortened.
In the case of the second aspect, in addition to the above-described effects, the conveying passage is enlarged, and the conveying posture of the grain stalk can be stabilized.
In the case of the third aspect, in addition to the above effects, when the cutting unit 5 is rotated up and down, interference between the cutting unit 5 and the body cover 62 is prevented, and therefore, the cutting unit 5 is positioned in front of the control unit 4. As a result, the entire length of the aircraft can be reduced while realizing full-scale mowing in which the culm in front of the control section 4 can also be trimmed.
In the case of the fourth aspect, in addition to the above-mentioned effects, the front end conveying device fixed above the root conveying device 14 can be omitted, the cost can be reduced, the weight can be reduced, and the overall length of the body can be shortened.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of the present invention will be described with reference to the drawings. 1 is an airframe, 2 is a traveling device, 3 is a threshing device provided at a position above the traveling device 2, and 4 is a maneuver provided at one front position of the threshing device 3. Reference numeral 5 denotes a mowing unit provided at a position in front of the threshing device 3 and the control unit 4.
The mowing part 5 is provided at the front end of the vertical support frame 6 in the front-rear direction, and a base horizontal transmission case 7 is provided at the base of the vertical support frame 6, and the base horizontal transmission case 7 is rotatably mounted on the support base of the body frame 1. Attach. One end of a cutting vertical cylinder 9 is attached to an intermediate portion of the vertical support frame 6, the other end of the cutting vertical cylinder 9 is mounted on the machine body side, and the cutting vertical section 9 is moved up and down by the cutting vertical cylinder 9.
Reference numeral 10 denotes a weeding body provided in the cutting unit 5, 11 denotes a raising device behind each weeding body 10, 12 denotes a rag-type scraping device behind the raising device 11, and 13 denotes a lower part of the base of the rag-type scraping device 12. A star wheel provided at the position, 14 is a root conveying device provided above the left and right star wheels 13, and 15 is a cutting blade.
[0009]
Reference numeral 18 denotes a lower horizontal transmission case provided at the tip of the vertical support frame 6. The rotation of the engine transmitted to the cutting input pulley 19 is transmitted to each part of the cutting unit 5 by a transmission shaft in the vertical support frame 6. . Reference numeral 20 denotes a left and right side transmission case provided on the left and right sides of the lower horizontal transmission case 18, and 21 denotes a center transmission case. Each of the left and right side transmission cases 20 and the center transmission case 21 is provided above the raising device 11. The mounting and supporting member also serves as the rotation transmitting member.
The bases of the upper and lower intermediate transmission cases 22 are 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 ends of the upper and lower intermediate transmission cases 22. The rotation is transmitted to the root conveying device 14. 25 is a transmission shaft for transmitting rotation to the cutting blade 15.
[0010]
On the rear side of the transport passages of the left and right root transporters 14, a stock takeover transport device 31 and a head takeover transport device 32 for transferring the transported grain culm to a grain culm supply transport device 30 for supplying the threshing device 3 are provided. . The stock transfer device 31 has a transfer chain 33 and a transfer pinching rod 34. The transfer chain 33 is wound around a driving sprocket 35 and a driven sprocket 36, but the driving sprocket 35 and the driven sprocket 36 can be arranged as desired. Attach to the fuselage side by means of As an example, the drive sprocket 35 is fixed to a part of the base lateral transmission case 7 or a rotating shaft 38 of a transmission frame 37 provided in the base lateral transmission case 7, and the driven sprocket is attached to a frame 39 provided in the transmission frame 37. 36 is attached by a rotating shaft 40.
The take-over clamping rod 34 is elastically attached to a mount 42 provided at the tip of an inverted U-shaped support frame 41 having a base fixed to the fuselage side, and moves toward and away from the take-over transport chain 33. To make contact with the grain during transport.
[0011]
The starting end of the stock transfer device 31 is overlapped with the terminal portion of the root transfer device 14 in a side view to ensure the delivery of the cereal stems transferred by the root transfer device 14. In addition, the transmission frame 37 is rotatably attached to the base horizontal transmission case 7 so that the starting end of the stock takeover transfer device 31 is configured to be vertically adjustable and also serves as a handling depth adjustment device.
The tip takeover transport device 32 is provided above the stock source takeover transport device 31. The tip takeover transport device 32 is configured to hang a transport chain 48 with lugs 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 distal end side of the case frame 45 to transport the lugs. A transfer lug 49 is attached to the chain 48 at predetermined intervals so as to be able to undulate. In the embodiment, the case frame 45 is mounted on the transmission frame 37 side, and the start end of the tip takeover transfer device 32 moves up and down in conjunction with the vertical movement of the start end of the stock transfer device 31. Although not shown, the case frame 45 is provided with a standing guide that holds the take-over transport lug 49 in an upright state and a fall-down guide that falls down to store the take-over transport lug 49 at predetermined positions.
[0012]
Thus, the roots of the grain stalks that have been weeded by the plurality of weed bodies 10 arranged side by side and raised by the raising device 11 are cut off by the cutting blade 15 in a parallel state, and the plurality of weed bodies arranged side by side as it is The grain culm conveyed in the conveying path H continuing from 10 by the root conveying apparatus 14 and conveyed in the respective conveying paths H is merged and taken over by the stock takeover conveying apparatus 31 and the tip handover conveying apparatus 32.
A pair of grain stalk scraping bodies (star wheels) 50 and 51 are provided in the transfer conveyance path G where the culms joined through the respective conveyance paths H are conveyed. The grain stalk scraping bodies 50 and 51 are formed in a disk shape, and a plurality of scraping claws 52 and 53 are formed on the periphery at predetermined intervals, respectively. 52 and 53 are engaged with each other, and the raked nails 52 and 53 are engaged with each other to rake the grain stem.
The driving grain stem scraping body 50 is mounted on the upper end of the rotating shaft 40, the rotating shaft 40 is mounted on a supporting member 55, and the lower portion of the supporting member 55 is fixedly provided on a frame 39 on which the rotating shaft 40 is mounted. Then, the rotation of the take-over transport chain 33 is transmitted via the rotary shaft 40 and is driven to rotate.
[0013]
Further, the driven grain stalk scraping body 51 rotates by meshing with the driving grain stalk scraping body 50, and the driven grain stalk scraping body 51 meshing with the driving grain stalk scraping body 50 is attached to the tip of the mounting frame 58. The base of the mounting frame 58 is mounted on a mounting table 42 provided on the inverted U-shaped support frame 41.
The meshing portion 54 of the driven stalk scraping body 50 and the driven stalk claw 53 of the driven stalk squeezing body 51 and the driven stalk claw 53 is provided in the transfer conveyance path G where the respective conveyance paths H join. The convergence of the cereal stems transported from H is smooth.
In other words, the driven grain squeezed body 50 and the driven grain squeezed body 51 are respectively located on the left and right sides in the transport direction of the takeover transport path G where the plurality of transport paths H join, and the drive rake claw 52 and the driven scrape 52 are driven. The claws 53 rotate from the upper side to the lower side in the conveying direction to scrape the cereal stems, and the driven cereal stalk scraping body 50 and the driven cereal stalk scraping bodies 51 join from the transport passage H and are transported in the takeover transport passage G. In particular, the scraping action at the confluence of the transport passages H prevents problems such as pinching or biting of the grain stalks, and prevents the occurrence of clogging. Smooth and secure transport in G.
[0014]
In this case, the meshing portion 54 of the driving raking claw 52 and the driven raking claw 53 has not a single point in the transport direction but a predetermined length before and after, and similarly, the takeover transport path G also has a predetermined length in the transport direction. Since it has a length, neither the engagement portion 54 nor the confluence portion of the transport passage H indicates a single location, but has a predetermined length (width or range). By arranging the meshing portion 54, the merging of the cereal stems conveyed from the conveying passage H may be smoothly performed.
In other words, in the embodiment, the root transport devices 14 are provided on the left and right, and the locations where the root transport chains 58 of the root transport devices 14 approach each other are the start ends of the takeover transport passages G, and near the start ends of the takeover transport passages G. When the meshing portion 54 is located, the transported grain culm from the right and left transport paths H is smoothly scraped and transported by the driven grain stalk scraping body 50 and the driven grain stalk scraping body 51, which is preferable.
Note that the root transport device 14 in FIG. 1 is formed on the root transport lug 59a on the left side instead of the root transport chain 59 to suppress noise generation.
[0015]
Also, the leading end trajectory (on the upper side of the conveyance) of the driving rake claw 52 and the driven rake claw 53 of the driven cereal squeezed body 50 and the driven cereal squeezed body 51 is the starting end or the root of the transfer conveyance path G. When the root transport chains 59 (the root transport lugs 59a) of the transport device 14 are located on the upstream side in the transport direction from the places where they approach each other, the delivery of the grain culm transport by the root transport device 14 is further smoothly performed. This is preferable because the transport (delivery) posture is stable and good, and spilling of the culm can be prevented and suppressed. In other words, even if the meshing portion 54 is located in the transfer conveyance path G, the tip trajectory of the driving raking claw 52 and the driven raking claw 53 wraps with the end of each conveying path H, thereby improving the raking performance. Can be
In addition, when viewed from the front of the transfer conveyance path G, the meshing portion 54 of the driven grain stalk scraping body 50 and the driven grain stalk scraping body 51 is placed in the moving path through which the transfer rug 49 of the tip transfer mechanism 32 passes. When it is located, the transport posture is stable, and spilling of the culm can be prevented, which is preferable.
[0016]
That is, by positioning the meshing portion 54 of the driven grain stalk scraping body 50 and the driven grain stalk scraping body 51 below the moving path of the working area of the transfer lag 49, the root of the grain stalk during the tip transport is moved. The driven grain stalk scraping body 50 and the driven grain stalk scraping body 51 are securely sandwiched, and the conveyance guide (scraping) action is also improved.
In addition, when viewed from the front of the transfer conveyance path G, the movement trajectory of the tip of the transfer conveyance lug 49 of the tip transfer mechanism 32 with respect to the meshing portion 54 of the driven grain stalk scraping body 50 and the driven grain stalk scraping body 51 is When it is positioned so as to protrude toward the side opposite to the case frame 45, the conveyance path is widened, the conveyance posture is stable, the conveyance guide on the tip side is also good, and the culm spill can be prevented, which is preferable.
In addition, the pitch of the driven raking claw 52 of the driving grain culm scraping body 50 and the pitch of the driven raking claw 53 of the driven grain culling scraping body 51 are made smaller with respect to the pitch of the succeeding transport lug 49 of the head tip transporting device 32. I do. In this case, the same number of rotations is transmitted from the rotating shaft 40 to both the transfer conveying lug 49 and the drive raking claw 52, but the driven raking claw 52 of the driving grain rame raking body 50 and the follower of the driven grain ramus raking body 51 are driven. By reducing the pitch of the raking claws 53, the number of times of contact (raising) of the raking claws 52, 53 with the cereal culm becomes larger than that of the transfer lag 49, and the raking performance is improved, and This is preferable because the pinching force of the stalk is also improved, the transport posture is stabilized, and spilling of the culm can be prevented.
[0017]
Thus, the side transmission case 20 has the upper and lower middle bent portions 60 at the upper and lower middle portions. The lower part of the side transmission case 20 is attached to the lower horizontal transmission case 18 and is inclined so as to be located on the front side from the lower end of the side transmission case 20 to the upper and lower middle bent portion 60, and the upper side of the upper and lower middle bent portion 60. The side transmission case 20 is inclined so as to be located on the rear side along the rear of the raising case 61 of the raising device 11 so as to reach the upper portion, and the side transmission case 20 is bent into a “<” shape in a side view. Formed.
Therefore, the delivery of the grain culm transport by the root transport device 14 becomes smooth and reliable, the transport (delivery) posture becomes stable and good, and spilling of the culm can be prevented.
That is, the side transmission case 20 is formed to be bent in the shape of a “ku” when viewed from the side, so that the driving grain stalk scraping body 50 and the driven grain stalk scraping body 51 are terminated at the end of the transport passage of the root transport device 14. , Or located above the terminal end, so that conveyance can be improved.
[0018]
In particular, by forming the side transmission case 20 to be bent in the shape of the letter “C” in a side view, the root transfer device 14 between the raising device 11 and the stock transfer transfer device 31 and the head transfer transfer device 32 is formed. It is possible to omit the head transfer device at the top and to arrange the starting end of the stock transfer device 31 serving also as the handling depth adjusting device near the end of the root transfer device 14. This is preferable because it is possible to provide a space in which the start end of the takeover transport device 32 can approach the vicinity of the rear side of the raising device 11.
That is, in the configuration of the conventional mowing unit 5, the head transfer device is provided above the root transfer device 14 between the raising device 11 and the stock transfer transfer device 31 and the head transfer transfer device 32. Therefore, it is possible to omit the tip conveying device above the root conveying device 14 to reduce the weight, to shorten the overall length of the machine body, and to reduce the overall size.
The upper and lower middle bent portions 60 of the side transmission case 20 on the right side in the traveling direction of the side transmission case 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 located in a space in front of a line connecting a lower mounting position of the side transmission case 20 and a connection portion of the raising device 11 on the upper side of the side transmission case 20.
Therefore, when the cutting unit 5 is turned up and down, interference between the cutting unit 5 and the machine body cover 62 is prevented, so that the cutting unit 5 can be brought forward of the control unit 4, and the front of the control unit 4 can be moved forward. It is preferable that the width and the overall length of the machine can be made compact while realizing full-scale mowing that can cut the grain culm.
[0019]
Thus, the upper portions of the left and right side transmission cases 20 are connected to the upper portion of the raising device 11, but the lower portions of the left and right side transmission cases 20 are located outside the connection portion between the upper portion and the raising device 11, As viewed from the front, the side transmission case 20 above the upper and lower middle bent portion 60 is formed to be inclined inward toward the upper end.
Therefore, the lower part of the left and right side transmission cases 20 can be widened in the left-right space (space), and the conveyance path can be enlarged to facilitate the conveyance, and the upper part of the side transmission cases 20 is the upper rear part of the raising device 11. To transmit rotation.
Thus, the central transmission case 21 fixes the base of the lower transmission rod 63 to the lower horizontal transmission case 18 so as to be substantially parallel to the ground during a normal cutting operation, and the front end of the lower transmission rod 63 is It is fixed to a lower gear box 64 located on the lower rear side, and a lower portion of a vertical transmission rod 65 located substantially parallel to the rear side of the raising case 61 of the raising device 11 is attached to the lower gear box 64. The upper part is connected to the upper part of the raising case 61 of the raising device 11 so as to be able to transmit rotation.
[0020]
In this case, the weeding body 10 is attached to the tip of the weeding pipe 66, the base of the weeding pipe 66 is bent upward and fixed to the raising case 61, and the weeding body 10 is located between the weeding pipe 66 and the central transmission case 21. A guide 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 weeding pipe 66, and in particular, between the lower gear box 64 and the weeding pipe 66. To prevent clogging of the culm.
Therefore, the central transmission case 21 is configured such that the vertical transmission rod 65 is located on the rear side of the raising case 61 of the central raising device 11, and the lower transmission rod 63 is located on the lower rear side of the weeding body 10. In addition, the lower gear box 64 of the central transmission case 21 can be connected to the weeding pipe 66 via the guide body 67 while avoiding interference with the grain during transportation, and the weeding pipe 66 of the weeding body 10 and the raising device 11 can be connected. The raising case 61 and the vertical transmission rod 65 of the central transmission case 21 are configured as strength members that connect each other.
Therefore, the guide body 67 prevents the straw waste from being caught or wrapped while improving the strength of the central transmission case 21.
[0021]
Thus, a reinforcing upper frame 70 is provided above the upper part of the raising case 61 of the left and right and center raising devices 11. The upper frame 70 is formed in an inverted U shape, is positioned above the raising case 61 of the center raising device 11 at a predetermined interval, and connects the lower portions of the left and right frames 71 to the raising case of the left and right raising devices 11. The lower part of the intermediate frame 72 provided at the left and right intermediate part of the upper frame 70 is connected to the upper part of the raising case 61 of the center raising device 11.
Accordingly, the shape of the central transmission case 21 can be changed to a configuration in which the lower transmission rod 63 is located at the lower rear side of the weeding body 10 and lower than the lower gear box 64, and the transport 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 raising case 61 of each raising device 11 is connected, so that a long culm transport path can be secured.
Therefore, in combination 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 raising case 61 of each raising device 11 and enlarge the transport passage.
[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 connecting 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 so that they are mutually strength members.
In this case, the lower part of the connection frame 75 is fixed to the lower transmission rod 63 of the central transmission case 21. However, if the strength as a strength member is secured, and it is fixed as close to the lower gear box 64 as possible, In the same way, if the upper part of the connecting frame 75 is fixed to the lower position of the vertical transmission rod 65 as much as possible, the rigidity can be improved without narrowing the spike conveying space. It is.
FIG. 15 shows another embodiment, in which a connecting frame 75 is provided between an intermediate portion of the lower transmission rod 63 of the central transmission case 21 and an upper and lower intermediate portion of the vertical transmission rod 65, and the rigidity of the central transmission case 21 is improved. Is improved.
Therefore, even if the upper frame 70 is omitted, the vibration of the central transmission case 21 can be reduced, the transportation path for the stock root and the tip can be secured, and the adaptability to long culm can be improved, which is preferable.
[0023]
Also, by omitting the upper frame 70, the height of the mowing portion 5 is reduced when the raising case 61 of the raising device 11 is at the highest position and the mowing portion 5 is raised. Be reduced.
FIG. 17 shows an embodiment of the raising device 11, in which a guide 77 formed of an elastic member such as rubber is provided on the upper portion of the raising case 61 in the raising case 61 so as to overlap the tip trajectory of the raising lug 76. . The right and left sides of the guide 77 are formed at free ends 78 and 79 to form a "C" shape in front view, and a pressing member is provided on the back side of the rising free end 78 where the rising lug 76 contacts. 80 are provided. The holding member 80 prevents the tip from entering the gap between the guide 77 and the stay 81 for attaching the guide 77 to the raising case 61, and moves when the raising lug 76 hits the rising free end 78. Limiting the amount reduces vibration noise.
In this case, the holding member 80 may be formed by bending the stay 81 to close the gap between the stay 81 and the guide 77.
Further, a pressing member 81 is provided on the side of the descending free end 79 where the raising lug 76 hits and escapes. The presser member 81 restricts the noise generated by hitting the rubber 82 of the raising case 61 when the raising lug 76 hits and the lowering free end 79 escapes when descending in reverse, and prevents the lowering free end 79 from escaping. With, decrease.
[0024]
In this case, it is preferable that the pressing member 81 be formed by extending a rubber 82 provided on the descending side of the raising case 61 upward because manufacturing and assembling become easy.
Further, the raising case 61 of the raising device 11 has a front shape in which a central portion 83 in a plan view is located on the front side and is formed on an inclined surface 84 which is inclined so as to become rearward as it reaches the side. It is preferable because it can be prevented from being caught.
In this case, when the inclination angle of the inclined surface 84 is formed so as to be continuous with the inclined surface of the weed body 10 so as not to give resistance during the movement of the cereal stem, it is possible to further reduce the catch of the cereal stem, which is preferable. is there.
That is, by providing the weeding performance to the raising case 61 of the raising device 11, the culm can move continuously with the weeding body 10, and the weed raising performance is improved. The weight can be reduced by eliminating the need for the body 85.
In addition, although each of the above-described embodiments is illustrated or described individually or mixedly for easy understanding, these can be variously combined with each other. The present invention is not limited to this, and there is a case where a synergistic effect is produced.
[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 reaper.
FIG. 4 is a plan view of a portion of a takeover transport device.
FIG. 5 is a rear view of the same.
FIG. 6 is a schematic diagram of a reaper.
FIG. 7 is an explanatory diagram of a transport path of the reaper.
FIG. 8 is a side view of the reaper.
FIG. 9 is a front view of the reaper.
FIG. 10 is a side view showing the positional relationship between the reaper and the body cover.
FIG. 11 is a side view of a central transmission case of the reaper.
FIG. 12 is a side view in which a guide body is provided in a central transmission case.
FIG. 13 is a plan view of the same section.
FIG. 14 is a front view of another embodiment of the reaper.
FIG. 15 is a side view of another embodiment of the reaper.
FIG. 16 is a front view of the embodiment of FIG.
FIG. 17 is a partial longitudinal front view of the embodiment of the raising device.
FIG. 18 is a partially longitudinal side view of the embodiment of FIG. 17;
FIG. 19 is a partial cross-sectional plan view of the embodiment of FIG. 17;
FIG. 20 is an exemplary front view showing the problem of the embodiment in FIG. 17;
FIG. 21 is a partial longitudinal front view of the embodiment of the raising device.
FIG. 22 is a plan view of an embodiment of the raising device.
FIG. 23 is a side view of the embodiment of FIG. 22.
FIG. 24 is a front view of the embodiment of FIG. 22.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Body, 2 ... Traveling device, 3 ... Threshing device, 4 ... Steering part, 5 ... Cutting part, 7 ... Base horizontal transmission case, 8 ... Support base, 9 ... Cutting vertical cylinder, 10 ... Weeding body, 11 ... Raising Device, 12: lug type scraping device, 13: star wheel, 14: root conveying device, 15: cutting blade, 18: lower horizontal 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 stalk supply / transport device, 31: Stake-over transfer device, 32: Head-end transfer device, 33: Transfer device Chain, 34: take-over clamping rod, 35: driving sprocket, 36: driven sprocket, 37: transmission frame, 38: rotating shaft, 39: frame, 40: rotating shaft, 41: inverted U-shaped support frame, 42: mounting base , 46 ... drive sprocket, 4 ... follower sprocket, 48 ... transport chain with lug, 49 ... takeover transport lug, 50 ... grain stalk scraping body, 51 ... grain stalk scraping body, 52 ... scraping nail, 53 ... scraping nail, 54 ... meshing part, 55: Support member, 58: Root transport chain, 58a: Root transport lug, 60: Upper and lower middle bent portion, 61: Raised case, 62: Body cover, 63: Lower transmission rod, 64: Lower gear box, 65: Vertical transmission Rod, 66 ... weeding pipe, 67 ... guide body, 70 ... upper frame, 71 ... left and right side frame, 72 ... intermediate frame, 75 ... connecting frame, 76 ... raising lug, 77 ... guide, 78 ... ascending side free end 79, a free end, 80, a pressing member, 81, a pressing member, 82, a rubber, 83, a central portion, 84, an inclined surface.

Claims

A cutting blade 15 is provided on the rear side of the plurality of weeds 10 and the raising device 11, and a root conveying device that conveys grain stalks passing through the plurality of conveying passages from the left and right weeds 10 to the rear side of the cutting blade 15. 14 is provided to constitute the mowing unit 5, and at the end of each of the root conveying devices 14, a handling depth adjusting device that adjusts the handling depth by raising and lowering the starting end is also used. With the start end of the stock transfer system 31 taking over the cereal stem facing the start end of the grain culm supply / conveyance device 30 to be supplied, the lower horizontal transmission case 18 of the reaping unit 5 is rotatably mounted on the machine body side. The lower side transmission case 18 is attached to the front end of the support frame 6, and the lower part of the lower side transmission case 18 is attached to the lower part of the side transmission case 20 and the center transmission case 21 for transmitting the rotation to the raising device 11, respectively. Above 20 and central transmission case 21 Is connected to the upper part of the raising case 61 of the raising device 11, and at least the side transmission case 20 of the side transmission case 20 and the center transmission case 21 is located at the upper and lower middle part thereof, in front of the upper and lower ends. Reaping part of the combine which formed the upper and lower middle bent part 60 like this.

2. The combine harvester according to claim 1, wherein the left and right side transmission cases 20 are closer to each other as they reach above the upper and lower middle bent portions 60 when viewed from the front.

In claim 1 or claim 2, a steering section 4 is provided on one side behind the reaping section 5, and among the side transmission cases 20, an upper and lower intermediate bending section 60 of the side transmission case 20 on the steering section 4 side is provided. A line connecting the mounting position of the lower part of the side transmission case 20 and the connection portion of the raising device 11 on the upper part of the side transmission case 20, provided at a position corresponding to the body cover 62 provided on the front side of the control unit 4. A combine harvester configured so that the side view body cover 62 is located in the front space.

4. The reaper according to claim 1, 2 or 3, wherein the cutting section 5 omits a fixed tip-head transport device above each root transport device 14, and joins a plurality of transport paths of each root transport device 14. Is provided with a stock takeover transporting device 31 which also serves as a handling depth adjusting device by raising and lowering the start end thereof, and a vertical axis rotating pair of grain stalk scraping bodies 50 is scraped at the start end of the stock takeover transport device 31. A harvester of a combine provided with an engaging portion 54 between the claw 52 and the raking claw 53 of the grain stem raking body 51.