JP4104118B2 - Combine pre-processing unit structure - Google Patents

Combine pre-processing unit structure Download PDF

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Publication number
JP4104118B2
JP4104118B2 JP2002262861A JP2002262861A JP4104118B2 JP 4104118 B2 JP4104118 B2 JP 4104118B2 JP 2002262861 A JP2002262861 A JP 2002262861A JP 2002262861 A JP2002262861 A JP 2002262861A JP 4104118 B2 JP4104118 B2 JP 4104118B2
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JP2004097079A (en
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卓二 瀬川
伸六 中島
修 木目
健 王
章一 仲谷
宙 相田
幹夫 岡田
定夫 朝倉
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Kubota Corp
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Kubota Corp
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Description

【0001】
【発明の属する技術分野】
本発明は、植立茎稈の株元を切断する下段刈取装置、及び、この下段刈取装置より上方箇所を切断する上段刈取装置を備え、前記上段刈取装置の後側近くに、上段刈取装置で切断された茎稈着粒部を上段刈取装置から受け継いで脱穀装置に移送する機体横向きのスクリュコンベヤを設け、前記下段刈取装置で切断された茎稈株元部を下段刈取装置から圃場に放出するように構成してあるコンバインの前処理部構造に関する。
【0002】
【従来の技術】
植立茎稈を株元のみで刈取り、刈取り茎稈の株元端から先端までの全体を脱穀装置に供給すると、刈取り茎稈の着粒部以外の稈身のために脱穀処理物の量が多くなる。植立茎稈の着粒部のみを刈取ると、刈り取り後の圃場には、長い茎稈が植立状態で残ることになる。このため、上記コンバインは、植立茎稈を上下2段の刈取装置で刈取り、上段刈取装置で切断された茎稈着粒部と、下段刈取装置で切断された茎稈株元部のうちの茎稈着粒部のみを脱穀装置に供給し、脱穀装置での処理物量が刈取り茎稈のボリュームの割には少なくなるようにしながら、かつ、圃場には短い切り株だけが残るようにしながら作業できるようになったものである。
この種のコンバインにおいて、下段刈取装置が上段刈取装置に先行して植立茎稈を切断するように構成すると、上段刈取装置は下段刈取装置による刈取り後の茎稈を切断することになることから、上段刈取装置の上方や下方に搬送部が位置する搬送装置を設け、この搬送装置によって茎稈を位置ずれしないように支持させながら上段刈取装置による切断を行なわせる必要が生じる。すると、前記搬送装置のために構造が複雑になるとか、上段刈取装置で切断された茎稈着粒部のボリュームが、搬送装置が作用していた稈身部分のために大きくなり、その分、脱穀装置での処理物量が多くなるなどの問題が発生する。ところが、上段刈取装置が下段刈取装置に先行して植立茎稈を切断するように構成すると、前記搬送装置を不要にし、構造の簡略化であるとか脱穀処理物の少量化を図りながら植立茎稈の2段刈りを行なわせられる。このように上段刈取装置が下段刈取装置に先行する状態で2段刈りすることが可能になった刈取り部構造を備えたコンバインとして、従来、たとえば特許文献1に示されるものがあった。
【0003】
【特許文献1】
特開昭47−29120号公報 ( 第2頁、第1図 )
【0004】
【発明が解決しようとする課題】
上段刈取装置が下段刈取装置に先行して茎稈を切断するように構成して前記搬送装置を不要にすると、茎稈の着粒部が引起装置の引起し爪に絡みつくなどした場合、着粒部が上段刈取装置で刈り取られても引起し爪から外れないでそれに付いて引起し装置の上端側に持ち上げられしまうことがある。すると、引起し爪が引起装置の引起し作用終端位置に至って茎稈に対する引起し作用が解除された際、茎稈着粒部が引起し爪から外れて落下するが、落下箇所によっては、圃場であるとか前処理部の装置間に落ちて回収できないとか、回収しにくくなる。
【0005】
本発明の目的は、上段刈取装置が着粒部を刈り取る際のための上記搬送装置を不要にしながら、しかも、着粒部の上記回収トラブルを発生しにくくしながら2段刈りできるコンバインの刈取り部構造を提供する。
【0006】
【課題を解決するための手段】
請求項1による発明の構成、作用、効果はつぎのとおりである。
【0007】
〔構成〕
植立茎稈の株元を切断する下段刈取装置、及び、この下段刈取装置より上方箇所を切断する上段刈取装置を備え、前記上段刈取装置の後側近くに、上段刈取装置で切断された茎稈着粒部を上段刈取装置から受け継いで脱穀装置に移送する機体横向きのスクリュコンベヤを設け、前記下段刈取装置で切断された茎稈株元部を下段刈取装置から圃場に放出するように構成してあるコンバインの前処理部構造において、前記上段刈取装置を、引起装置による引起し状態にある植立茎稈に対して切断作用するように、かつ、前記下段刈取装置に先行して植立茎稈に対して切断作用するように配置し、前記引起装置の引起し作用終端位置を、前記スクリュコンベヤの上方に配置し、
前記引起装置の上端側を支持する支持フレームに、機体横向きのメインフレーム、及び、このメインフレームから機体前方向きに、前記スクリュコンベヤの上方を通って延出しているとともに延出端側が引起装置の機体上方向き面側に連結している機体前後向きフレームを備え、
前記メインフレームが前記スクリュコンベヤよりも機体後方側に位置し、
前記機体前後向きフレームが前記引起装置の機体上方向き面に沿っている
【0008】
〔作用〕
上段刈取装置を、下段刈取装置に先行して植立茎稈に対して切断作用するように下段刈取装置より機体前方側に配置してあるものだから、上段刈取装置は、植立状態にある茎稈に作用して茎稈着粒部を切断する。これにより、下段刈取装置が上段刈取装置に先行して切断作用する場合の如く上段刈取装置が作用する際の茎稈を支持させる搬送装置を設けなくとも、上段刈取装置に対して位置ずれしにくい状態にある茎稈に上段刈取装置を作用させ、予定箇所より先端側に位置ずれして着粒部に入り込んだ箇所で切断されるなどの切断ミスが発生しにくい状態で茎稈着粒部を切断させることができる。
【0009】
上記した如く上段刈取装置によって切断された茎稈着粒部が引起し爪に付いて持ち上げられ、引起し爪が引起装置の引起し作用終端位置に至るに伴って引起し爪から外れて落下する事態が発生しても、引起装置の引起し作用終端位置をスクリュコンベヤの上方に配置してあるものだから、引起し爪から外れた茎稈着粒部は、スクリュコンベヤ上に落下してこのスクリュコベヤによって回収されやすくなる。
【0010】
〔効果〕
従って、上段刈取装置が着粒部を切断する際に茎稈を支持させるための搬送装置を不要にしてその分構造簡単に得るとか、上記した如く脱穀装置に供給される着粒部のボリュームを極力小にし、脱穀装置での処理物量や処理負荷を少なくするとか軽減して精度面や能率面で有利に脱穀処理できる。その割には、上段刈取装置で刈り取られた茎稈着粒部が引起し爪に付いて持ち上がる事態が発生しても、スクリュコンベヤによって回収され、特別な回収手間を掛けなくとも穀粒損失を回避できる。
【0011】
【0012】
【0013】
〔作用〕
引起装置の上端側に連結している前後向きフレームがスクリュコンベヤの上方を前後方向に通っており、引起装置の横側の茎稈移動経路が引起装置の上方に延長した部位を障害物がない開放状態にしながら、引起装置の上端側を支持フレームよって支持させられるものである。これにより、引起し爪に付いて持ち上げられた茎稈着粒部が引起し作用終端位置に到達して引起し作用を解除するべく動く引起し爪によって振り回され、引起装置の上端からさらに上方まで振り上げられてから落下することになっても、支持フレームに引っ掛かりにくくてスクリュコンベヤに落下しやすくなる。
【0014】
〔効果〕
従って、引起し爪に付いて持ち上げられた茎稈着粒部が引起装置の上端部付近で振り上げられることがあっても、スクリュコンベヤに落下して精度よく回収できる。
【0015】
【発明の実施の形態】
図1に示すように、クローラ式走行装置1によって自走し、かつ、運転キャビン2が装備された搭乗型の運転部、運転部の下方に位置するエンジン(図示せず)が備えられた原動部(図示せず)を有した自走機体の機体フレーム3の前端側に、前処理部10のフィーダ11の基端側を機体横向きの軸芯まわりで回動自在に連結するとともに、自走機体の前記エンジンから前処理部10に動力伝達するように構成し、前記機体フレーム3に脱穀装置30及び穀粒タンク5を搭載して、コンバインを構成してある。
【0016】
このコンバインは、稲、麦、蕎麦などを収穫するものであり、前記フィーダ11の先端側にシリンダロッドが連結しているリフトシリンダ6を操作することにより、このリフトシリンダ6がフィーダ11を上下に揺動操作して前処理部10を先端側が圃場面近くに下降した作業位置と、先端側が圃場面から浮上した上昇非作業位置とに昇降操作する。前処理部10を下降作業位置にして機体走行させることにより、この前処理部10が圃場に植立している稲・麦などの茎稈を刈取り、脱穀装置30が前処理部10からの刈取り茎稈を脱穀処理し、穀粒タンク5が脱穀粒を貯留していくものであり、詳しくは、次の如く構成してある。
【0017】
図1、図5に示すように、前処理部10は、これの最前端部で機体横方向に並んでいる複数個の分草具12、この分草具12の後側で機体横方向に並んでいる複数の引起装置13、この引起装置13の下端側の後方に機体上下方向に間隔を隔てて位置している下段刈取装置14と上段刈取装置15、この上段刈取装置15の後側近くに位置しているスクリュコンベヤとしてのオーガ16、このオーガ16の搬送終端部の後側近くに搬送始端部が位置しているフィーダコンベヤ17などを備えて構成してある。
【0018】
図5などに示すように、前記フィーダ11、このフィーダ11の先端部に一端側が連結している機体横向きの搬送ガイド20、この搬送ガイド20の左右側板20aに左右の連結部21aで連結している下段刈取りフレーム21、この下段刈取りフレーム21の前記左右の連結部21aや機体横向きのフレーム本体21bから機体前方向きに延出しているとともに機体横方向に間隔を隔てて並んでいる複数本の分草杆22などによって前処理部フレームを構成し、前記分草杆22それぞれの先端部に前記分草具12を固定してある。
【0019】
図3、図5などに示すように、前記搬送ガイド20は、屈曲板で成るガイド本体と、このガイド本体の機体横方向での両端部に連結している前記側板20aとにより、機体上方向きに開口したオーガ収容凹部を備えた樋状に構成してある。
【0020】
図2などに示すように、前記複数の引起装置13のそれぞれは、引起しケース13aの内部に無端引起しチェーン13bを駆動回動自在に設け、この無端引起しチェーン13bの複数箇所に起伏揺動自在に備えてある引起し爪13cの先端側が引起しケース13aからこれの横側に突出して引起しケース13aに沿って上昇移動して茎稈に対して梳き上げ作用する引起装置で成り、上端側ほど機体後方側に位置する後倒れの傾斜姿勢にした状態で図2、図5などに示す取り付け構造によって前処理部フレームに支持させてある。
すなわち、前記分草杆22の前端部に固定してある支持体23に引起しケース13aの下端側を支持させ、前記搬送ガイド20の上端部20bに左右一対の連結杆24aで連結している支持フレーム24の機体横方向に並んでいる複数本の機体前後向きフレーム24bの一つの前端側に引起ケース13aの上端側を支持させてある。
【0021】
図3、図5などに示すように、前記上段刈取装置15は、バリカン型の刈取装置で成り、前記搬送ガイド20の上向き開口20cの前側近くにその上向き開口20cに沿って位置する配置状態にして、前記搬送ガイド20の前側端部に連結している上段刈取りフレーム25に支持させてあり、前記下段刈取装置14は、バリカン型の刈取装置で成り、前記下段刈取りフレーム21の前記フレーム本体21bに支持させてある。上段刈取装置15と下段刈取装置14とは、上段刈取装置15が下段刈取装置14より高レベルに位置し、かつ、上段刈取装置15の刃先側が下段刈取装置14の刃先より機体前方側に位置した位置関係にしてある。
これにより、上段刈取装置15は、各引起装置13が引起し処理している状態にある植立茎稈に対して下段刈取装置14より先行して、かつ、下段刈取装置14より上方箇所で切断作用して、各引起装置13からの植立茎稈の茎稈着粒部を切断し、切断した茎稈着粒部を搬送ガイド20の前記上向き開口20cに落下させる。下段刈取装置14は、上段刈取装置15によって茎稈着粒部が切断されて引起装置13が引起し作用しなくなった状態にある複数条の植立茎稈の株元に切断作用して、着粒部が無くなった状態にある植立茎稈からこれの茎稈株元部を切断し、この茎稈株元部を下段刈取りフレーム21の前記フレーム本体21bと前記搬送ガイド20との間から圃場面上に放出する。
【0022】
図4などに示すように、前記上段刈取装置15を支持している前記上段刈取りフレーム25に、上段刈取装置15の後側及び下方で機体前方に向かっている茎稈受け面26aを有した支持部26を備えてある。図3に示すように、この支持部26は、下段刈取装置14が切断作用する植立茎稈の先端側を茎稈受け面26aによって機体後方側から受け止め支持するように構成してある。
【0023】
図5などに示すように、前記スクリュコンベヤ16は、前記搬送ガイド20の内部に駆動回動自在に設けてあり、上段刈取装置15の前記フィーダ11に対して機体横側に位置すれしている部分から搬送ガイド20に落下した茎稈着粒部を搬送ガイド20に沿わせて機体横方向にフィーダ11の前側に搬送して、上段刈取装置15のフィーダ11の直前方に位置する部分から搬送ガイド20に落下した茎稈着粒部と合流させ、合流した茎稈着粒部を、スクリュコンベア16の端部に一体回動自在に設けてある送り爪16aによって後方に掻き送り、フィーダ11の先端側の前記搬送ガイド20の内部に連通している入り口に送り込む。
【0024】
前記フィーダコンベヤ17は、フィーダ11の内部に駆動回動自在に位置する複数本の無端回動チェーンにわたって搬送体を取り付けて成るチェーンコンベヤによって構成してあり、前記スクリュコンベヤ16からの茎稈着粒部をフィーダ11の底板の内面に沿わせて後方に揚送し、フィーダ11の基端側の排出口から脱穀装置30の機体内に送り込む。
【0025】
これにより、前処理部10は、刈取り対象とする複数条の植立茎稈を分草具12によって分草するとともに分草杆22どうしの間の引起し経路に案内し、各引起し経路に導入された植立茎稈を、その引起し経路に対応している引起装置13の上昇移動する引起し爪13cによって引起し処理しながら上段刈取装置15に供給して着粒部を刈取り、その茎稈着粒部が刈り取られた植立茎稈を下段刈取装置14に供給して着粒部が無くなっている茎稈株元部を刈取る。上段刈取装置15で刈り取られた茎稈着粒部は、上段刈取装置15の後側近くに配置のスクリュコンベヤ16によって上段刈取装置15から直接に受け継ぎ、このスクリュコンベヤ16とフィーダコンベヤ17とによって脱穀装置30に供給していき、下段刈取装置15で刈り取られた茎稈株元部は、下段刈取りフレーム21と搬送ガイド20との間から圃場面上に放出していく。上段刈取装置15からの植立茎稈の茎稈株元部を下段刈取装置14によって刈り取る際、その植立茎稈の先端側を前記支持部26の茎稈受け面26aによって機体後方側から受け止め支持させて、下段刈取装置14の切断作用に起因する植立茎稈の姿勢乱れを発生しにくくしながら刈り取る。
【0026】
図1に示すように、脱穀装置30は、前処理部10の前記フィーダコンベヤ17から機体内に送り込まれた茎稈着粒部を、機体前後向きの軸芯まわり回動する扱胴31の前端部に備えてある掻き込みスクリュー32によって扱胴31の後端側に導入し、扱胴31に備えてある脱穀スクリュー33と、扱胴31の下方に位置する受網34とによって機体後方側に搬送しながら脱穀処理し、脱穀処理物を、受網34の下方の選別部に落下させ、揺動選別装置35による揺動と、唐箕36からの選別風とによって脱穀粒と塵埃とに選別し、脱穀粒を機体外に搬出して穀粒タンク5に供給し、塵埃を選別風とともに機体外に排出する。
【0027】
図4、図5に示すように、前記複数個の引起装置13それぞれの引起し作用終端位置E、すなわち、前記引起し爪13cが引起装置13の上端側で引起しケース13aの内部に引退して茎稈に対する引起し作用を解除する位置を、前記スクリュコンベヤ16の上方に配置してある。
【0028】
図5などに示すように、前記複数個の引起装置13それぞれの上端側を支持している前記支持フレーム24は、前記搬送ガイド20の前記スクリュコンベヤ16の機体後方側に位置している前記上端部20bに下端側が連結している前記左右一対の連結杆24a、この左右一対の連結杆24aの上端側どうしにわたって連結している機体横向きの引起し伝動ケースで成るメインフレーム24c、このメインフレーム24cの長手方向での複数箇所から機体前方向きに、前記スクリュコンベヤ16の上方を通って延出して延出端側が引起しケース13aの上端側に連結している引起し伝動ケースで成る前記前後向きフレーム24bのそれぞれによって構成してある。
【0029】
これにより、上段刈取装置15によって刈り取られた茎稈着粒部が、引起し爪13cから外れないで引起し爪13cに付いて持ち上げられることがあると、引起し爪13cが引起し作用終端位置Eまで上昇して引起しケース13aの内部に引退した際、引起し爪13cから外れて落下することになる。この場合、引起装置13の引起し作用終端位置Eとスクリュコンベヤ16とが前記位置関係にあるために、引起し爪13cから外れた茎稈着粒部は、スクリュコンベヤ16の上に落下してこのスクリュコンベヤ16によって回収されやすくなっている。また、引起し爪13cに付いて持ち上げられた茎稈着粒部が引起しケース内に引退する引起し爪13cによって振り回されて引起しケース13aの上端13eからさらに上方まで振り上げられて落下することになっても、引起装置13の上端側に連結している前後向きフレーム24bはスクリュコンベヤ16の上方を前後方向に通っているものであって引起しケース13aの横側の茎稈移動経路を上方に延長した部位を開放していることにより、茎稈着粒部は、支持フレーム24に引っ掛かりにくくてスクリュコンベヤ16に落下しやすくなっている。
【0030】
図2、図6などに示すように、前記下段刈取装置14の可動刃の一端側に先端側が連結している刈り刃駆動アーム40の機体上下向きの回転筒軸41を、前記下段刈取りフレーム21の前記連結部21aの横外側に固定の支軸41aに回動自在に支持させ、前記回転筒軸41の上端側に一体回動自在に連結している連動アーム42を、前記搬送ガイド20の側板20aの外面側に回動自在に支持されている駆動回転体43の偏芯出力部43aに対して連動杆44によって連動させることにより、下段刈取装置14の駆動を可能にしてある。前記上段刈取装置15の可動刃の一端側に先端側が連結している刈り刃駆動アーム45を駆動揺動自在に有した刈り刃駆動機構46を前記側板20aの外面側に支持させるとともに、この刈り刃駆動機構46の入力プーリ47を、伝動ベルト48によって前記駆動回転体43に連動させることにより、上段刈取装置15の駆動を可能にしてある。
【図面の簡単な説明】
【図1】 コンバイン全体の側面図
【図2】 前処理部の前部の側面図
【図3】 刈取装置による茎稈刈取りの説明図
【図4】 引起装置の作用終端位置とオーガの位置関係を示す側面図
【図5】 前処理フレーム及び引起装置支持フレームの斜視図
【図6】 刈取装置駆動構造の斜視図
【符号の説明】
13 引起装置
14 下段刈取装置 15 上段刈取装置
16 スクリュコンベヤ
24 支持フレーム
24b 支持フレームの前後向きフレーム
24c 支持フレームのメインフレーム
30 脱穀装置
E 引起装置の引起し作用終端位置
[0001]
BACKGROUND OF THE INVENTION
The present invention includes a lower-stage cutting device for cutting a planted stem culm, and an upper-stage cutting device for cutting an upper portion of the lower-stage cutting device, and an upper-stage cutting device near the rear side of the upper-stage cutting device. A machine-side transverse screw conveyor is provided to transfer the cut stalk-and-grass granulation part from the upper-stage reaping device to the threshing device, and the stem-and-plant base cut by the lower-stage reaping device is discharged from the lower reaping device to the field. It is related with the structure of the pre-processing part of the combine comprised as follows.
[0002]
[Prior art]
If the planted stalks are cut only by the plant root and the entire length from the plant root to the tip of the planted stalks is supplied to the threshing device, the amount of the threshing product is reduced due to slimming other than the granulated part of the cutting stalks. Become more. If only the granulated part of the planted stem is cut, a long stem will remain in the planted state in the field after cutting. For this reason, the above combine harvests the planted stalks with the upper and lower reaping devices, and the stem stalk grain cut by the upper reaping device and the shoots and stems cut by the lower reaper It is possible to work while supplying only the stalk and grain setting part to the threshing device so that the amount of processed matter in the threshing device is less than the volume of the cutting stalk and only the short stump remains in the field. It is like that.
In this type of combine, if the lower reaping device is configured to cut the planted stalk prior to the upper reaping device, the upper reaping device will cut the stalk after cutting by the lower reaping device. In addition, it is necessary to provide a transport device in which the transport unit is positioned above and below the upper reaping device, and to perform cutting by the upper reaper while supporting the stems so as not to be displaced by the transport device. Then, the structure of the transport device becomes complicated, or the volume of the stem and stem granulated portion cut by the upper reaping device is increased due to the slimming part on which the transport device was working, Problems such as an increase in the amount of processed material in the threshing device occur. However, if the upper reaping device is configured to cut the planted stalk prior to the lower reaping device, the conveying device is unnecessary, and the planting is performed while simplifying the structure or reducing the amount of threshing products. Two-stage cutting of the stems is performed. Conventionally, for example, Japanese Patent Application Laid-Open No. H10-133707 discloses a combine having a harvesting portion structure that enables two-stage trimming in a state where the upper-stage harvesting device precedes the lower-stage trimming device.
[0003]
[Patent Document 1]
JP 47-29120 (Page 2, Fig. 1)
[0004]
[Problems to be solved by the invention]
If the upper reaping device is configured to cut the pedicles prior to the lower reaping device so that the conveying device is not required, the granulation part of the pedicles may become entangled with the raising claws of the pulling device. Even if the part is cut by the upper cutting device, it is raised and does not come off the claw, and it may be raised and lifted to the upper end side of the device. Then, when the pulling nail reaches the pulling action end position of the pulling device and the pulling action on the stem is released, the stem stem granule part is pulled up and falls off the nail. Or it falls between the devices of the pre-processing unit and cannot be recovered or is difficult to recover.
[0005]
An object of the present invention is to provide a harvesting unit for a combine that can perform two-stage trimming while eliminating the need for the transporting device for the upper-stage harvesting device to trim the granulated part, and making the recovery trouble of the granulated part less likely to occur. Provide structure.
[0006]
[Means for Solving the Problems]
The configuration, operation, and effect of the invention according to claim 1 are as follows.
[0007]
〔Constitution〕
A stalk cut by the upper reaping device near the rear side of the upper reaping device, comprising a lower reaping device for cutting the planting stem culm, and an upper reaping device for cutting an upper portion from the lower reaping device. The machine is equipped with a sideways screw conveyor that inherits the grain setting part from the upper reaping device and transfers it to the threshing device, and is configured to discharge the stem and stalk base cut by the lower reaping device from the lower reaping device to the field. In the pre-processing section structure of the existing combine, the upper reaping device is cut and acted on the cultivated stalk that is raised by the pulling device, and the pedestal stem is preceded by the lower reaping device. It is arranged so as to cut against the ridge, and the pulling action end position of the pulling device is arranged above the screw conveyor,
A support frame that supports the upper end side of the pulling device, a main frame that faces the fuselage, and extends from the main frame toward the front of the fuselage through the top of the screw conveyor, and the extending end side of the pulling device is Airframe front and rear frame that is connected to the aircraft upward facing side,
The main frame is located on the rear side of the machine from the screw conveyor,
The front-rear frame of the airframe is along the upward-facing surface of the airframe of the pulling device .
[0008]
[Action]
Since the upper reaping device is arranged on the front side of the machine from the lower reaping device so as to cut the planted stalk prior to the lower reaping device, the upper reaping device is in the planted state. Acts on the cocoon and cuts the stem and bud granule. Accordingly, the lower reaping device is less likely to be displaced with respect to the upper reaping device without providing a transport device that supports the stems when the upper reaping device acts as in the case where the lower reaping device performs the cutting action prior to the upper reaping device. The upper reaping device is applied to the pedicles that are in the state, and the pedicled grain part is placed in a state where cutting mistakes such as cutting at the place where it has shifted to the tip side from the planned part and entered the granulated part are unlikely to occur. Can be cut.
[0009]
As described above, the stem stem granule section cut by the upper reaping device is raised and attached to the nail, and the raised nail is raised and detached from the nail as it reaches the end position of the raising device. Even if a situation arises, the pulling action end position of the pulling device is located above the screw conveyor. It becomes easy to collect by.
[0010]
〔effect〕
Therefore, when the upper reaping device cuts the granulation part, it eliminates the need for a conveying device for supporting the stems and reduces the structure, or the volume of the granulation part supplied to the threshing device as described above. The threshing process can be advantageously performed in terms of accuracy and efficiency by reducing or reducing the amount of processing and processing load in the threshing device as much as possible. In spite of this, even if a situation occurs where the stem-and-grass part cut by the upper-stage harvesting device is raised and attached to the claw, it is recovered by the screw conveyor, and the grain loss can be reduced without any special recovery effort. Can be avoided.
[0011]
[0012]
[0013]
[Action]
The front-rear frame connected to the upper end side of the pulling device passes through the screw conveyor in the front-rear direction, and there is no obstacle in the part where the trawl movement path on the side of the pulling device extends above the pulling device. The upper end side of the pulling device can be supported by the support frame while being in the open state. As a result, the stem-and-grab granule lifted by the raising claw is raised and swung by the raising claw that reaches the action end position and moves to release the action, from the upper end of the raising device further upward Even if it falls after being swung up, it is difficult to get caught on the support frame, and it is easy to fall onto the screw conveyor.
[0014]
〔effect〕
Therefore, even if the stem-and-grass granulated part lifted by the pulling claw is swung up near the upper end of the pulling device, it can be dropped on the screw conveyor and accurately collected.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
As shown in FIG. 1, the driving | running | working driving | running | working part which self-propelled by the crawler type traveling apparatus 1, and was equipped with the driving | running cabin 2 and the engine (not shown) located under the driving | running | working part were equipped. The base end side of the feeder 11 of the pre-processing unit 10 is connected to the front end side of the body frame 3 of the self-propelled machine body having a section (not shown) so as to be rotatable around the lateral axis of the machine body. Power is transmitted from the engine of the machine body to the preprocessing unit 10, and the combiner is constructed by mounting the threshing device 30 and the grain tank 5 on the machine body frame 3.
[0016]
This combine harvests rice, wheat, buckwheat and the like. By operating a lift cylinder 6 having a cylinder rod connected to the tip of the feeder 11, the lift cylinder 6 moves the feeder 11 up and down. The pre-processing unit 10 is moved up and down to the working position where the tip side is lowered near the farm scene and the ascending non-work position where the tip side is lifted from the farm scene. By moving the pretreatment unit 10 in the descending work position, the pretreatment unit 10 cuts off stems such as rice and wheat planted in the field, and the threshing device 30 cuts off the pretreatment unit 10. The stalks are threshed and the grain tank 5 stores the threshed grains. The details are as follows.
[0017]
As shown in FIGS. 1 and 5, the pre-processing unit 10 includes a plurality of weeding tools 12 arranged in the lateral direction of the fuselage at the foremost end of the preprocessing unit 10, and in the lateral direction of the fuselage on the rear side of the weeding tool 12. A plurality of pulling devices 13 arranged in a row, a lower reaping device 14 and an upper reaping device 15 that are positioned behind the lower end side of the motive device 13 in the vertical direction of the body, and near the rear side of the upper reaping device 15 The auger 16 serving as a screw conveyor located at the front of the auger 16 and a feeder conveyor 17 having a conveying start end located near the rear side of the conveying end of the auger 16 are provided.
[0018]
As shown in FIG. 5 and the like, the feeder 11, a transport guide 20 on one side of the machine body connected to the tip of the feeder 11, and the left and right side plates 20 a of the transport guide 20 are connected to the left and right connecting portions 21 a. A lower cutting frame 21 that extends from the left and right connecting portions 21a of the lower cutting frame 21 and the frame body 21b that faces the machine body in the forward direction of the machine body, and a plurality of pieces that are arranged at intervals in the machine body lateral direction. A pre-processing part frame is constituted by a grass basket 22 or the like, and the weeding tool 12 is fixed to the tip part of each of the grass cutters 22.
[0019]
As shown in FIG. 3, FIG. 5, etc., the conveyance guide 20 has a guide main body formed of a bent plate and the side plate 20a connected to both ends of the guide main body in the horizontal direction of the machine body. It is comprised in the shape of a bowl provided with the auger accommodation recessed part opened in.
[0020]
As shown in FIG. 2 and the like, each of the plurality of pulling devices 13 is provided with an endlessly raised chain 13b in a pulling case 13a so that the chain 13b can be driven and rotated. The pulling claw 13c that is movably provided has a leading end side that is raised and protrudes laterally from the case 13a, is raised along the case 13a, and moves up along the case 13a to act on the pedicles. The upper end side is supported on the pre-processing unit frame by the mounting structure shown in FIGS. 2 and 5 in a state of being tilted rearward and positioned on the rear side of the machine body.
That is, the support body 23 fixed to the front end portion of the weed ridge 22 is raised to support the lower end side of the case 13a, and is connected to the upper end portion 20b of the transport guide 20 by a pair of left and right connecting rods 24a. The upper end side of the elevating case 13a is supported on one front end side of a plurality of front and rear frames 24b arranged in the transverse direction of the support frame 24.
[0021]
As shown in FIGS. 3 and 5, the upper reaping device 15 is a clipper type reaping device, and is placed in a state of being positioned along the upward opening 20 c near the front opening 20 c of the conveyance guide 20. The lower-stage cutting device 14 is a clipper-type cutting device and is supported by the upper-stage cutting frame 25 connected to the front end portion of the transport guide 20. The frame body 21b of the lower-stage cutting frame 21 Is supported. The upper reaping device 15 and the lower reaping device 14 are such that the upper reaping device 15 is located at a higher level than the lower reaping device 14, and the cutting edge side of the upper reaping device 15 is positioned ahead of the machine body from the cutting edge of the lower reaping device 14. It is in a positional relationship.
As a result, the upper reaping device 15 is cut at a location preceding the lower reaping device 14 and above the lower reaping device 14 with respect to the planted stems in the state in which each pulling device 13 is raised and processed. It acts to cut the stem stem granule portion of the planted stem stem from each pulling device 13 and drop the cut stem stem granule portion into the upward opening 20 c of the conveyance guide 20. The lower cutting device 14 cuts the stems of the plurality of planted stems in a state where the stem cutting grains are cut by the upper cutting device 15 and the pulling device 13 does not act. A stalk base is cut from the planted stalk in a state where the grain part is lost, and the stalk base is cut between the frame body 21b of the lower cutting frame 21 and the transport guide 20 in the field. Release on the surface.
[0022]
As shown in FIG. 4 and the like, the upper chopping frame 25 supporting the upper reaping device 15 has a pedicle receiving surface 26a facing the front of the machine body at the rear side and the lower side of the upper reaping device 15. A portion 26 is provided. As shown in FIG. 3, the support portion 26 is configured to receive and support the distal end side of the planted stalk that is cut by the lower-stage cutting device 14 from the rear side of the machine body with the stalk receiving surface 26 a.
[0023]
As shown in FIG. 5 and the like, the screw conveyor 16 is provided inside the transport guide 20 so as to be freely rotatable. The screw conveyor 16 is positioned on the lateral side of the machine body with respect to the feeder 11 of the upper cutting device 15. The stalk-and-granule granule that has fallen onto the conveyance guide 20 from the portion is conveyed along the conveyance guide 20 to the front side of the feeder 11 in the lateral direction of the machine body, and conveyed from the portion located immediately before the feeder 11 of the upper reaping device 15. The stalk-and-grass granulated part that has fallen on the guide 20 is merged, and the merged stalk-and-grass granulated part is scraped backward by a feed claw 16a provided at the end of the screw conveyor 16 so as to be integrally rotatable. It feeds into the entrance communicating with the inside of the conveyance guide 20 on the front end side.
[0024]
The feeder conveyor 17 is constituted by a chain conveyor formed by attaching a conveying body over a plurality of endless rotating chains that are rotatably driven inside the feeder 11. The part is fed backward along the inner surface of the bottom plate of the feeder 11 and fed into the body of the threshing device 30 from the outlet on the proximal end side of the feeder 11.
[0025]
As a result, the pretreatment unit 10 divides the plurality of planted stalks to be cut by the weeding tool 12 and guides them to the raising paths between the weeding pods 22, so that each raising path The introduced planted stalk is fed to the upper reaping device 15 while being lifted and processed by the raising claw 13c of the raising device 13 corresponding to the raising path, and the granulated portion is cut. The planted stem culm from which the stem bud grain has been cut is supplied to the lower-stage reaping device 14 to cut off the stem culm stock from which the granule has been removed. The stem-and-grass granulated portion cut by the upper cutting device 15 is directly inherited from the upper cutting device 15 by the screw conveyor 16 disposed near the rear side of the upper cutting device 15, and threshing is performed by the screw conveyor 16 and the feeder conveyor 17. The stem and stem base that has been supplied to the device 30 and cut by the lower cutting device 15 is discharged onto the field scene from between the lower cutting frame 21 and the conveyance guide 20. When the stalk base of the planted stalk from the upper cutting device 15 is cut by the lower cutting device 14, the tip side of the planted stalk is received from the rear side of the body by the stalk receiving surface 26a of the support portion 26. It is supported, and it cuts, making it difficult to generate | occur | produce the posture disorder of the planted stem stem resulting from the cutting action of the lower stage cutting device 14.
[0026]
As shown in FIG. 1, the threshing device 30 includes a front end of a handling cylinder 31 that rotates a stem-and-grass granule fed from the feeder conveyor 17 of the pretreatment unit 10 around the axis center in the longitudinal direction of the machine. It is introduced into the rear end side of the handling cylinder 31 by a scraping screw 32 provided in the section, and is arranged on the rear side of the machine body by a threshing screw 33 provided in the handling cylinder 31 and a receiving net 34 positioned below the handling cylinder 31. The threshing process is carried out while being transported, and the threshing product is dropped on a sorting unit below the receiving net 34 and sorted into threshing grains and dust by swinging by the swing sorting device 35 and the sorting wind from the Kara 36. Then, the threshing grains are carried out of the machine body and supplied to the grain tank 5, and the dust is discharged out of the machine body together with the sorting wind.
[0027]
As shown in FIGS. 4 and 5, the pulling action end position E of each of the plurality of pulling devices 13, that is, the pulling claw 13c is pulled up at the upper end side of the pulling device 13 and retracted into the case 13a. The position where the action of raising the stem is released is arranged above the screw conveyor 16.
[0028]
As shown in FIG. 5 and the like, the support frame 24 supporting the upper ends of each of the plurality of pulling devices 13 is positioned on the rear side of the machine body of the screw conveyor 16 of the transport guide 20. A pair of left and right connecting rods 24a whose lower ends are connected to the portion 20b, a main frame 24c comprising a laterally raised transmission case connected across the upper ends of the pair of left and right connecting rods 24a, and the main frame 24c. The front-rear direction comprising a transmission case that extends from the plurality of locations in the longitudinal direction of the machine to the front of the machine body and extends above the screw conveyor 16 and has an extended end side that is connected to the upper end side of the case 13a. Each of the frames 24b is configured.
[0029]
As a result, if the stem and stem granule cut by the upper cutting device 15 is raised and attached to the claw 13c without being detached from the claw 13c, the raised claw 13c is raised and the action end position is raised. When it rises up to E and pulls up and retreats inside the case 13a, it pulls up and falls off the claw 13c. In this case, since the pulling action end position E of the pulling device 13 and the screw conveyor 16 are in the above-mentioned positional relationship, the stem and stem granule that has been lifted and detached from the claw 13c falls on the screw conveyor 16. The screw conveyor 16 facilitates recovery. Further, the stem stem granule portion that is lifted by the raised claw 13c is raised and swung around by the raised claw 13c that retreats into the case, and is raised up from the upper end 13e of the case 13a and dropped. However, the front-rear frame 24b connected to the upper end side of the pulling device 13 passes through the top of the screw conveyor 16 in the front-rear direction, and pulls up the lateral movement path of the case 13a. By opening the portion extended upward, the stem and stem granule is not easily caught by the support frame 24 and is easy to fall onto the screw conveyor 16.
[0030]
As shown in FIGS. 2, 6, and the like, the rotary cylinder shaft 41 of the cutting blade driving arm 40 that is connected to one end side of the movable blade of the lower cutting device 14 at the tip end side is mounted on the lower cutting frame 21. An interlocking arm 42 that is rotatably supported on a support shaft 41 a fixed to the lateral outer side of the connecting portion 21 a and is connected to the upper end side of the rotating cylinder shaft 41 so as to be integrally rotatable is provided on the transport guide 20. The lower reaping device 14 can be driven by interlocking with the eccentric output portion 43a of the drive rotating body 43 rotatably supported on the outer surface side of the side plate 20a by the interlocking rod 44. A cutting blade driving mechanism 46 having a cutting blade driving arm 45 connected to one end side of the movable blade of the upper-stage cutting device 15 and capable of driving and swinging is supported on the outer surface side of the side plate 20a. By driving the input pulley 47 of the blade driving mechanism 46 in conjunction with the drive rotating body 43 by means of a transmission belt 48, the upper reaping device 15 can be driven.
[Brief description of the drawings]
[Fig. 1] Side view of the entire combine [Fig. 2] Side view of the front part of the pre-processing unit [Fig. 3] Explanatory drawing of shoot cutting by the reaping device [Fig. 4] Positional relation between the working end position of the pulling device and the auger FIG. 5 is a perspective view of a pretreatment frame and a pulling device support frame. FIG. 6 is a perspective view of a reaping device driving structure.
REFERENCE SIGNS LIST 13 Pulling device 14 Lower cutting device 15 Upper cutting device 16 Screw conveyor 24 Support frame 24b Support frame front and rear frame 24c Support frame main frame 30 Threshing device E Pulling action end position of pulling device

Claims (1)

植立茎稈の株元を切断する下段刈取装置、及び、この下段刈取装置より上方箇所を切断する上段刈取装置を備え、前記上段刈取装置の後側近くに、上段刈取装置で切断された茎稈着粒部を上段刈取装置から受け継いで脱穀装置に移送する機体横向きのスクリュコンベヤを設け、前記下段刈取装置で切断された茎稈株元部を下段刈取装置から圃場に放出するように構成してあるコンバインの前処理部構造であって、
前記上段刈取装置を、引起装置による引起し状態にある植立茎稈に対して切断作用するように、かつ、前記下段刈取装置に先行して植立茎稈に対して切断作用するように配置し、
前記引起装置の引起し作用終端位置を、前記スクリュコンベヤの上方に配置し、
前記引起装置の上端側を支持する支持フレームに、機体横向きのメインフレーム、及び、このメインフレームから機体前方向きに、前記スクリュコンベヤの上方を通って延出しているとともに延出端側が引起装置の機体上方向き面側に連結している機体前後向きフレームを備え、
前記メインフレームが前記スクリュコンベヤよりも機体後方側に位置し、
前記機体前後向きフレームが前記引起装置の機体上方向き面に沿っているコンバインの前処理部構造。
A lower-stage cutting device that cuts the root of the planted stem culm, and an upper-stage cutting device that cuts a portion above the lower-stage cutting device, and a stem cut by the upper-stage cutting device near the rear side of the upper-stage cutting device The machine is equipped with a sideways screw conveyor that inherits the grain setting part from the upper reaping device and transfers it to the threshing device, and is configured to discharge the stem and culm root cut by the lower reaping device to the field from the lower reaping device A pre-processing unit structure of a combine
The upper reaping device is arranged so as to cut the planted stalk that is raised by the pulling device and to act on the planted stalk prior to the lower reaping device. And
The pulling action end position of the pulling device is disposed above the screw conveyor,
A support frame that supports the upper end side of the pulling device, a main frame that faces the fuselage, and extends from the main frame toward the front of the fuselage through the top of the screw conveyor, and the extension end side of the pulling device Airframe front and rear frame that is connected to the aircraft upper surface side,
The main frame is located on the rear side of the machine body from the screw conveyor,
A pre-processing unit structure for a combine in which the frame in the longitudinal direction of the fuselage is along the upward direction of the fuselage .
JP2002262861A 2002-09-09 2002-09-09 Combine pre-processing unit structure Expired - Fee Related JP4104118B2 (en)

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JP4104118B2 true JP4104118B2 (en) 2008-06-18

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JP6174413B2 (en) * 2013-08-06 2017-08-02 ヤンマー株式会社 Harvesting machine

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