JP3817596B2

JP3817596B2 - Combine

Info

Publication number: JP3817596B2
Application number: JP2002323470A
Authority: JP
Inventors: 俊郎和田; 和実藪
Original assignee: Yanmar Agricultural Equipment Co Ltd
Current assignee: Yanmar Co Ltd
Priority date: 2002-11-07
Filing date: 2002-11-07
Publication date: 2006-09-06
Anticipated expiration: 2021-09-06
Also published as: JP2003174819A

Description

【０００１】
【発明の属する技術分野】
本発明は例えば刈取部で刈取った穀稈を脱穀処理するコンバインに関する。
【０００２】
【発明が解決しようとする課題】
従来、特開昭６１−１２２１３号公報に示す如く、脱穀部の側方を開放させて扱室及び扱胴の保守点検や受網の交換などを行う場合、支点軸を中心に側部カバーを移動させて脱穀部側面を開放させる技術がある。前記従来技術は、側部カバーを取外す面倒な作業手間を省けるが、脱穀部側面外方側に側部カバーを水平に倒伏させて開放させるから、扱胴の保守点検または受網の交換などを側部カバー上方空間から行う必要があり、作業者が脱穀部内側に側部カバー越しに接近して作業を行う面倒があると共に、作業終了時に側部カバーを持上げて元の位置に戻す必要があり、またフィードチェンが自重降下するのを防ぐ固定手段が必要であり、取扱い操作の簡略化並びにメンテナンス等の作業性向上などを容易に図り得ない等の問題がある。そこで、側部カバーまたはフィードチェンを取外して受網を交換することも行えるが、受網の交換を容易に行い得ない問題がある。
【０００３】
【課題を解決するための手段】
そこで、本発明では、脱穀部一側で前後方向にフィードチェンを張設させるコンバインにおいて、フレームであるチェンレールにフィードチェンを張設すると共に、同チェンレールに上記脱穀部に内設させる扱胴側部を覆う側部カバーを取付け、前記チェンレールは、側部カバーの前後幅よりも長尺に形成すると共に、上記側部カバーから突出させる後側に縦軸である支点軸を設け、上記支点軸を中心として上記チェンレールを介してフィードチェンを側部カバーと共に外側方へ回動可能に構成したことを特徴とするコンバインを提供するものである。
【０００４】
【発明の実施の形態】
以下、本発明の実施例を図面に基づいて詳述する。図１はフィードチェン部の側面説明図、図２はコンバインの全体側面図、図３は同平面図であり、図中（１）は走行クローラ（２）を装設するトラックフレーム、（３）は前記トラックフレーム（１）上に架設する機台、（４）はフィードチェン（５）を左側に張架し扱胴（６）及び処理胴（７）を内蔵している脱穀部、（８）は刈刃及び穀稈搬送機構などを備える刈取部、（９）は排藁チェン（１０）終端を臨ませる排藁処理部、（１１）は運転席（１２）及び運転操作部（１３）を備える運転台、（１４）は機台（３）の右側後部に配備してエンジン（１５）を内設するエンジン部、（１６）は前記エンジン部（１４）前方に配設して脱穀部（４）からの穀粒を溜める穀粒タンク、（１７）は前記穀粒タンク（１６）内の穀粒を外側に取出す排出オーガであり、連続的に刈取り・脱穀作業を行うように構成している。
【０００５】
図４乃至図６に示す如く、前記脱穀部（４）の上側壁カバー（１８）を上方に開放自在に設けると共に、前記フィードチェン（５）を脱穀部（４）左側方に開放自在に設けるもので、前記カバー（１８）の支柱（１９）にフレーム（２０）を介して挾扼杆（２１）を連結支持させ、前記カバー（１８）の基端を脱穀本体側の固定ブラケット（２２）に支点軸（２３）を介して開閉自在に支持させている。なお、（２４）は挾扼杆（２１）の外側を覆う挾扼杆カバー、（２５）は前記カバー（１８）を閉封保持するロック部材である。
【０００６】
また、前部回転体である駆動スプロケット（２６）を下部チェンレール（２７）前端に備えると共に、下部及び上部チェンレール（２７）（２８）の後端に固設する巻付防止板である上部枢着板（２９）に後部回転体である従動スプロケット（３０）を備え、各スプロケット（２６）（３０）にフィードチェン（５）を張設させるもので、前記枢着板（２９）と、該枢着板（２９）下方に支柱（３１）を介して連結固定する下部枢着板（３２）とに、上下の水平回動支点軸（３３）（３４）をそれぞれ固設し、脱穀本体側の固定ブラケット（３５）（３６）に前記支点軸（３３）（３４）を介してフィードチェン（５）を側方に開放可能に支持するように構成している。
【０００７】
さらに、前記扱胴（６）下部のクリンプ網（３７）の外方側端部（３７ａ）に下端部を圧接させる扱胴側部カバー（３８）を、前記チェンレール（２７）（２８）に取付フレーム（３９）（４０）を介して一体連結すると共に、前記フィードチェン（５）のテンションローラ（４１）及びスプロケット（４２）をガイド板（４２ａ）などを介して前記チェンレール（２７）に取付け、前記フィードチェン（５）を側方開放時、側部カバー（３８）・テンションローラ（４１）・スプロケット（４２）も側方に一体的に回動させるように構成している。
【０００８】
そして、前記フィードチェン（５）を閉動作時、前記側部カバー（３８）の前側板（３８ａ）の係止ピン（４３）を脱穀前側板（４４）にロック板（４５）を介し係合保持させるもので、前側板（４４）に支軸（４６）・ストッパピン（４７）及びバネ（４８）を介してロック板（４５）が位置保持され、側部カバー（３８）が閉封されるとき、ロック板（４５）に固設するガイドレバー（４９）に前記ピン（４３）が当接し、バネ（４８）に抗してロック板（４５）を下方に押し下げ、ロック板（４５）のピン係合溝（５０）に前記ピン（４３）が係合し、側部カバー（３８）及びフィードチェン（５）を閉位置に固定保持するように構成している。
【０００９】
また、前記脱穀部（４）本体側に固設する駆動ケース（５１）に、前記フィードチェン（５）を駆動する駆動軸（５２）を備えるもので、該駆動軸（５２）を入力軸（５３）にギヤ（５４）を介し連結すると共に、前記駆動スプロケット（２６）のスプロケット軸（５５）にリミットクラッチ（５６）を介して継断自在に前記駆動軸（５２）を結合連結させ、リミットクラッチ（５６）のクラッチ爪による駆動伝達方式とすることにより、従来のピン結合方式に比べ、部品点数を削減させ耐久性向上を図るもので、脱穀用穀稈を搬送するフィードチェン（５）を脱穀部（４）側方に開放可能に設け、フィードチェン（５）を縦軸である水平回動支点軸（３３）（３４）回りに回転自在に脱穀部（４）の側部に設けると共に、本機側の駆動部である駆動軸（５２）に着脱自在に連結させる伝動接続部であるスプロケット軸（５５）を前記水平回動支点軸（３３）（３４）と離れた側に設けている。
【００１０】
さらに、前記フィードチェン（５）の後端側を支持する前記支点軸（３３）（３４）は、前記従動スプロケット（３０）のスプロケット軸（５７）より寸法（ｔ）後部位置で、フィードチェン（５）より脱穀本体側寄りに配設していて、フィードチェン（５）を開放時、該チェン（５）の最後端部である枢着板（２９）（３２）の脱穀本体側への入り込み代を最小限にし、機体左右全巾を一定寸法内に抑制しながら脱穀本体とフィードチェン（５）の干渉を防止するように構成するもので、脱穀用穀稈を搬送するフィードチェン（５）を脱穀部（４）側方に開放可能に設ける構造において、脱穀部（４）側方に開放するフィードチェン（５）の水平回動支点軸（３３）（３４）を、フィードチェン（５）の端部を支持する前記スプロケット（３０）のスプロケット軸（５７）よりもさらに端部外方位置でフィードチェン（５）よりも脱穀本体寄りに設けている。
【００１１】
上記のように、供給搬送チェンであるフィードチェン（５）と挾扼杆（２１）とによって、穀稈を挾持搬送しながら脱穀処理する脱穀部（４）を備えたコンバインにおいて、該脱穀部（４）の上部カバーである上側壁カバー（１８）と前記挾扼杆（２１）とを一体的に上方へ移動可能に構成するとともに、前記フィードチェン（５）を、脱穀部（４）に内設させる扱胴（６）側部を覆う側部カバー（３８）と共に、前記脱穀部（４）の側部から移動可能に構成し、側部カバー（３８）を取り外さなくても、フィードチェン（５）を脱穀部（４）の側部から移動させて脱穀部（４）の側面を開放させ、メンテナンス作業の効率を向上させると共に、フィードチェン（５）と挾扼杆（２１）とによって、穀稈を挾持搬送しながら脱穀処理する脱穀部（４）を備えたコンバインにおいて、該脱穀部（４）の上側壁カバー（１８）と前記挾扼杆（２１）とを一体的に上方へ移動可能に構成するとともに、前記フィードチェン（５）を、脱穀部（４）に内設させる扱胴（６）側部を覆う側部カバー（３８）と共に、縦軸である支点軸（３３）を中心として外側方へ回動可能に構成し、側部カバー（３８）を取り外さなくても、フィードチェン（５）を外側方へ回動させて脱穀部（４）の側面を開放させ、メンテナンス作業の効率を向上させる。
【００１２】
また、刈取部（８）及び脱穀部（４）を装設させて連続的に穀稈を刈取って脱穀すると共に、脱穀部（４）に内設させる扱胴（６）の一側方でフィードチェン（５）を張設させる側面を側部カバー（３８）によって開閉自在に閉塞させるコンバインにおいて、支点軸（３３）（３４）回りに前記側部カバー（３８）を横方向に回動自在に設け、扱胴（６）下側の受網であるクリンプ網（３７）の一側部でフィードチェン（５）を張設する側面と側部カバー（３８）の間に作業空間を形成可能に構成し、側部カバー（３８）を横方向に回動させて脱穀部（４）側面を開放させ、従来のように側部カバー（３８）を下げ上げ操作したり脱着する負担がなく、脱穀部（４）側面に対し側部カバー（３８）を離反または接合させる操作を従来よりも軽々と行うと共に、従来のように側部カバー（３８）越しにクリンプ網（３７）交換などを行う面倒がなく、脱穀部（４）側面部での作業者の行動が側部カバー（３８）によって規制される不具合をなくし、脱穀部（４）側面でのクリンプ網（３７）脱着などの作業を作業者によって容易に行い、取扱い操作の簡略化などを容易に図る。
【００１３】
また、前後方向に張設させるフィードチェン（５）を移動可能な支点軸（３３）を介して脱穀部（４）側面に取付け、脱穀部（４）側面にフィードチェン（５）側を係脱可能なフックであるロック板（４５）によって連結させ、ロック板（４５）に操作レバーであるガイドレバー（４９）を連結させ、フィードチェン（５）の支点軸（３３）回りの回動方向にガイドレバー（４９）を作動させて係脱させる前記ロック板（４５）とピン（４３）を脱穀部（４）側とフィードチェン（５）側に対向配設させ、脱穀部（４）の上側壁カバー（１８）と前記挾扼杆（２１）とを一体的に上方へ移動可能に構成するとともに、前記フィードチェン（５）を、該フィードチェン（５）を覆う側部カバー（３８）と共に、支点軸（３３）を中心として外側方へ回動可能に構成する。そして、フィードチェン（５）を水平方向に回動させて脱穀部（４）側面を大きく開放させるから、従来のようにフィードチェン（５）を下げ上げ操作して脱着する負担がなく、脱穀部（４）側面に対しフィードチェン（５）を離反または接合させる操作を従来よりも軽々と行うと共に、従来のようにフィードチェン（５）越しにクリンプ網（３７）交換などを行う面倒がなく、脱穀部（４）側面部での作業者の行動がフィードチェン（５）によって規制される不具合をなくし、また前記ロック板（４５）の係脱操作だけでフィードチェン（５）の回動操作を行い、フィードチェン（５）の脱穀部（４）側面との脱着並びに回動の各操作を作業者によって容易に行い、取扱い操作の簡略化などを容易に図り、さらにロック板（４５）とピン（４３）を脱穀部（４）側とフィードチェン（５）側に対向配設させるから、回動自在なフィードチェン（５）の係止固定構造をピン（４３）とロック板（４５）によって容易に構成し、支点軸（３３）（３４）とピン（４３）及びロック板（４５）によってフィードチェン（５）側を強固に支持し、フィードチェン（５）側の振動騒音発生並びに変形損傷などの低減並びに係合機能の向上などを図る。
【００１４】
また、脱穀部（４）一側で前後方向にフィードチェン（５）を張設させるコンバインにおいて、支点軸（３３）（３４）回りにフィードチェン（５）を移動自在に設けると共に、前記支点軸（３３）（３４）に連結させるフレームであるチェンレール（２７）にフィードチェン（５）の駆動スプロケット（２６）を軸支させ、また扱胴（６）一側方に設ける側部カバー（３８）をチェンレール（２７）を介して支点軸（３３）に取付け、該脱穀部（４）の上側壁カバー（１８）と前記挾扼杆（２１）とを一体的に上方へ移動可能に構成するとともに、前記フィードチェン（５）の後部を、脱穀部（４）後側に立設した支持部材である支柱（３１）に支点軸（３３）を介して外側方へ回動可能に支持する一方、前記フィードチェン（５）の前部を、脱穀部（４）側にロック装置であるガイドレバー（４９）を介して係合離脱可能に構成する。そして、従来のようにフィードチェン（５）及び側部カバー（３８）を脱着する負担がなく、脱穀部（４）側面に対しフィードチェン（５）及び側部カバー（３８）を離反または接合させる操作を従来よりも軽々と行うと共に、従来のようにフィードチェン（５）及び側部カバー（３８）越しにクリンプ網（３７）交換を行う面倒がなく、脱穀部（４）側面部での作業者の行動がフィードチェン（５）及び側部カバー（３８）によって規制される不具合をなくし、また支点軸（３３）（３４）に駆動スプロケット（２６）を設けるから、フィードチェン（５）と駆動スプロケット（２６）を脱着させることなくフィードチェン（５）の回動を行い、フィードチェン（５）を回動させて行う作業性の向上並びにフィードチェン（５）に対する駆動スプロケット（２６）取付け精度の維持などを容易に図ると共に、側部カバー（３８）の回動によってクリンプ網（３７）交換などの作業スペースを容易に確保させ、かつ支点軸（３３）（３４）及び駆動スプロケット（２６）を側部カバー（３８）の前後に配置させて伝動機構並びに支点軸（３３）（３４）などの取付け構造の簡略化及び支持強度向上などを図る。
【００１５】
また、脱穀部（４）外側面に固定させる軸受部材である固定ブラケット（３５）（３６）を機外側に突出させて水平回動支点軸（３３）（３４）を設け、水平回動支点軸（３３）（３４）を扱胴側部カバー（３８）側に固定させて前記固定ブラケット（３５）（３６）に対して上下方向に抜差し可能に連結させ、フィード遅延及び扱胴側部カバー（３８）の着脱操作性向上などを図り、さらに脱穀部（４）側面に前記固定ブラケット（３５）（３６）を水平に突設させて開放位置のフィードチェン（５）と脱穀部（４）側面との離間距離を確保し、かつ固定ブラケット（３５）（３６）の水平突設によって水平回動支点軸（３３）（３４）取付け位置が限定されることがない。
【００１６】
上記から明らかなように、脱穀部（４）一側で前後方向にフィードチェン（５）を張設させるコンバインにおいて、フレームであるチェンレール（２７）にフィードチェン（５）を張設すると共に、同チェンレール（２７）に上記脱穀部（４）に内設させる扱胴（６）側部を覆う側部カバー（３８）を取付け、前記チェンレール（２７）は、側部カバー（３８）の前後幅よりも長尺に形成すると共に、上記側部カバー（３８）から突出させる後側に縦軸である支点軸（３３）を設け、上記支点軸（３３）を中心として上記チェンレール（２７）を介してフィードチェン（５）を側部カバー（３８）と共に外側方へ回動可能に構成している。
そして、支点軸（３３）を中心としてフィードチェン（５）を側部カバー（３８）と共に外側方向に移動させて、脱穀部（４）側面と刈取部（８）の後部側面を大きく開放させることにより、従来のようにフィードチェン（５）及び側部カバー（３８）を脱着する負担がなく、脱穀部（４）側面に対しフィードチェン（５）及び側部カバー（３８）を離反または接合させる操作を従来よりも軽々と行うと共に、従来のようにフィードチェン（５）及び側部カバー（３８）越しに受網（３７）交換を行う面倒がなく、脱穀部（４）と刈取部（８）の側面部での作業者の行動がフィードチェン（５）及び側部カバー（３８）によって規制される不具合をなくすことができる。
この際、支点軸（３３）は、側部カバー（３８）の前後幅よりも長尺に形成すると共に、側部カバー（３８）から突出させるチェンレール（２７）の後側に設けているため、側部カバー（３８）などに規制されることがない。
【００１７】
本実施例は上記の如く構成するものにして、前記フィードチェン（５）を開放自在に支持する回動支点軸（３３）（３４）を、前記従動スプロケット（３０）のスプロケット軸（５７）より寸法（ｔ）後部位置で、フィードチェン（５）より脱穀本体側寄りに配設するものであるから、前記フィードチェン（５）を開放時に最後端となる枢着板（２９）（３２）後端の脱穀本体側への入り込み代が最小となり、フィードチェン（５）を脱穀本体外方に張出させることなく機体全巾を一定寸法内に抑制した状態で干渉など不都合のない安全な開放作業を行える。
【００１８】
また、前記フィードチェン（５）を回動開放時、前記駆動スプロケット（２６）にフィードチェン（５）が巻回された状態でチェンレール（２７）（２８）などと一体的に開放されるものであるから、フィードチェン（５）開放操作を容易に行えて作業能率に秀れ、しかもフィードチェン（５）開放時、前記扱胴側部カバー（３８）も同時に外方に引出され、脱穀部（４）側面が開放状態となり、扱室内の点検保守やクリンプ網（３７）の交換作業を至便に行えるものである。
【００１９】
【発明の効果】
本発明では、脱穀部（４）一側で前後方向にフィードチェン（５）を張設させるコンバインにおいて、フレームであるチェンレール（２７）にフィードチェン（５）を張設すると共に、同チェンレール（２７）に上記脱穀部（４）に内設させる扱胴（６）側部を覆う側部カバー（３８）を取付け、前記チェンレール（２７）は、側部カバー（３８）の前後幅よりも長尺に形成すると共に、上記側部カバー（３８）から突出させる後側に縦軸である支点軸（３３）を設け、上記支点軸（３３）を中心として上記チェンレール（２７）を介してフィードチェン（５）を側部カバー（３８）と共に外側方へ回動可能に構成している。
このようにして、支点軸（３３）を中心としてフィードチェン（５）を側部カバー（３８）と共に外側方向に移動させて、脱穀部（４）側面と刈取部（８）の後部側面を大きく開放させることができるため、従来のようにフィードチェン（５）及び側部カバー（３８）を脱着する負担がなく、脱穀部（４）側面に対しフィードチェン（５）及び側部カバー（３８）を離反または接合させる操作を従来よりも軽々と行うと共に、従来のようにフィードチェン（５）及び側部カバー（３８）越しに受網（３７）交換を行う面倒がなく、脱穀部（４）と刈取部（８）の側面部での作業者の行動がフィードチェン（５）及び側部カバー（３８）によって規制される不具合をなくすことができる。
この際、支点軸（３３）は、側部カバー（３８）の前後幅よりも長尺に形成すると共に、側部カバー（３８）から突出させるチェンレール（２７）の後側に設けているため、側部カバー（３８）などに規制されることがない。
【図面の簡単な説明】
【図１】フィードチェン部の側面説明図。
【図２】コンバインの全体側面図。
【図３】同平面図。
【図４】脱穀部の断面説明図。
【図５】フィードチェン部の平面説明図。
【図６】同部分説明図。
【符号の説明】
（４）脱穀部
（５）フィードチェン
（６）扱胴
（３８）側部カバー[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a combine for threshing cereals harvested by a harvesting unit, for example.
[0002]
[Problems to be solved by the invention]
Conventionally, as shown in Japanese Patent Application Laid-Open No. 61-12213, when the side of the threshing portion is opened to perform maintenance and inspection of the handling chamber and handling cylinder, replacement of the receiving net, etc., the side cover is centered around the fulcrum shaft. There is a technique to move and open the side of the threshing part. The prior art saves the troublesome work of removing the side cover, but since the side cover is horizontally laid down on the outer side of the threshing side to open it, maintenance inspection of the barrel or replacement of the receiving net, etc. It is necessary to carry out from the space above the side cover, and there is a need for the operator to work close to the side cover inside the threshing part, and to lift the side cover at the end of the work and return it to the original position In addition, a fixing means for preventing the feed chain from falling under its own weight is necessary, and there are problems such as simplification of handling operation and easy improvement of workability such as maintenance. Therefore, it is possible to replace the receiving network by removing the side cover or the feed chain, but there is a problem that the receiving network cannot be easily replaced.
[0003]
[Means for Solving the Problems]
Therefore, in the present invention, in the combine in which the feed chain is stretched in the front-rear direction on one side of the threshing section, the feed chain is stretched on the chain rail that is a frame, and the handling cylinder is installed in the threshing section on the chain rail. attaching the side cover covering the sides, said Chen rail, than the longitudinal width of the side cover so as to form a long, set the pivot axis is the longitudinal axis behind to project from the side cover, The present invention provides a combine characterized in that the feed chain is configured to be pivotable outward together with the side cover through the chain rail about the fulcrum shaft.
[0004]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is an explanatory side view of the feed chain section, FIG. 2 is an overall side view of the combine, and FIG. 3 is a plan view thereof. In the figure, (1) is a track frame on which a traveling crawler (2) is installed, (3) Is a machine base installed on the track frame (1), (4) is a threshing section in which a feed chain (5) is stretched on the left side and a handling cylinder (6) and a processing cylinder (7) are incorporated, (8 ) Is a cutting part provided with a cutting blade and a grain feeder, etc., (9) is a rejection processing part that faces the end of the rejection chain (10), and (11) is a driver's seat (12) and a driving operation part (13). (14) is an engine unit that is disposed in the right rear portion of the machine base (3) and has an engine (15), and (16) is disposed in front of the engine unit (14) and is a threshing unit. The grain tank for storing the grain from (4), (17) takes the grain in the grain tank (16) outside. It is to discharge auger, are configured to perform a continuously reaping-threshing work.
[0005]
As shown in FIGS. 4 to 6, the upper wall cover (18) of the threshing part (4) is provided so as to be freely opened upward, and the feed chain (5) is provided so as to be freely opened on the left side of the threshing part (4). The support (19) of the cover (18) is connected to and supported by the ridge (21) via the frame (20), and the base end of the cover (18) is fixed to the threshing main body side fixing bracket (22). Is supported through a fulcrum shaft (23) so as to be freely opened and closed. In addition, (24) is a cover for covering the outside of the cover (21), and (25) is a lock member for sealing and holding the cover (18).
[0006]
In addition, a drive sprocket (26) which is a front rotating body is provided at the front end of the lower chain rail (27), and an upper portion which is a winding prevention plate fixed to the rear ends of the lower and upper chain rails (27) and (28). The pivot plate (29) is provided with a driven sprocket (30) as a rear rotating body, and a feed chain (5) is stretched on each sprocket (26) (30). The pivot plate (29), The upper and lower horizontal pivot fulcrum shafts (33) and (34) are fixed to the lower pivot plate (32) connected and fixed to the lower portion of the pivot plate (29) via the support column (31), respectively. The feed chain (5) is supported on the side fixing brackets (35) and (36) through the fulcrum shafts (33) and (34) so as to be openable to the side.
[0007]
Furthermore, a handle cylinder side cover (38) is provided on the chain rails (27) and (28). The handle rail side cover (38) presses the lower end to the outer end (37a) of the crimp net (37) below the handle cylinder (6). The unit is integrally connected via mounting frames (39) and (40), and the tension roller (41) and sprocket (42) of the feed chain (5) are connected to the chain rail (27) via a guide plate (42a) and the like. When the feed chain (5) is opened sideways, the side cover (38), the tension roller (41), and the sprocket (42) are also integrally rotated to the side.
[0008]
When the feed chain (5) is closed, the locking pin (43) of the front plate (38a) of the side cover (38) is engaged with the front plate (44) through the lock plate (45). The lock plate (45) is held in position by the front plate (44) via the support shaft (46), stopper pin (47) and spring (48), and the side cover (38) is closed. The pin (43) abuts against a guide lever (49) fixed to the lock plate (45), and pushes down the lock plate (45) against the spring (48) to lock the lock plate (45). The pin (43) is engaged with the pin engaging groove (50) of the side, and the side cover (38) and the feed chain (5) are fixedly held in the closed position.
[0009]
The drive case (51) fixed to the threshing part (4) main body side is provided with a drive shaft (52) for driving the feed chain (5), and the drive shaft (52) is connected to the input shaft ( 53) is connected to the sprocket shaft (55) of the drive sprocket (26) via a gear (54), and the drive shaft (52) is connected and connected to the sprocket shaft (55) via a limit clutch (56). By adopting a drive transmission system using clutch claws of the clutch (56), the number of parts is reduced and durability is improved as compared with the conventional pin coupling system. A feed chain (5) for conveying threshing cereals is provided. The threshing part (4) is provided on the side of the threshing part (4) so as to be openable, and the feed chain (5) is provided on the side part of the threshing part (4) so as to be rotatable about the horizontal rotation fulcrum shafts (33) (34). In the drive part of this machine side That are provided sprocket axis is transmission connection portion for detachably connecting (55) to said the far side horizontal rotation fulcrum shaft (33) (34) to the drive shaft (52).
[0010]
Further, the fulcrum shaft (33) (34) supporting the rear end side of the feed chain (5) is located at a rear position of the dimension (t) from the sprocket shaft (57) of the driven sprocket (30). 5) It is arranged closer to the threshing body side than the threshing body side, and when the feed chain (5) is opened, the pivot plate (29) (32) which is the rearmost end of the chain (5) enters the threshing body side. The feed chain (5) is configured to prevent interference between the threshing body and the feed chain (5) while minimizing the allowance and suppressing the overall width of the machine body within a certain dimension. In the structure in which the threshing part (4) is provided open to the side, the horizontal rotation fulcrum shaft (33) (34) of the feed chain (5) that opens to the threshing part (4) side is used as the feed chain (5). The sprocket supporting the end of the It is provided on the threshing body nearer the feed chain (5) in addition the end portion outer side position than the sprocket axis (57) of 0).
[0011]
As mentioned above, in the combine provided with the threshing part (4) which carries out the threshing process while holding and transferring the cereal meal by the feed chain (5) and the straw (21) which are the supply and transport chains, the threshing part ( The upper side wall cover (18), which is the upper cover of 4), and the ridge (21) are configured to be integrally movable upward, and the feed chain (5) is placed in the threshing section (4). Together with the side cover (38) that covers the side of the handling cylinder (6) to be installed, it can be moved from the side of the threshing part (4), and the feed chain (38) can be removed without removing the side cover (38). 5) is moved from the side of the threshing section (4) to open the side surface of the threshing section (4), and the efficiency of the maintenance work is improved, and by the feed chain (5) and the basket (21), Threshing with threshing while holding cereals In the combine provided with (4), the upper wall cover (18) of the threshing part (4) and the basket (21) are configured so as to be integrally movable upward, and the feed chain (5) With the side cover (38) that covers the side of the handling cylinder (6) that is installed in the threshing part (4), the fulcrum shaft (33) that is the vertical axis is configured to be rotatable outward, Even without removing the side cover (38), the feed chain (5) is rotated outward to open the side surface of the threshing part (4), thereby improving the efficiency of the maintenance work.
[0012]
Moreover, while installing a reaping part (8) and a threshing part (4), and simultaneously reaping and threshing the cereal, at one side of the handling cylinder (6) installed in the threshing part (4) In the combine in which the side surface on which the feed chain (5) is stretched is opened and closed by the side cover (38), the side cover (38) can be rotated in the lateral direction around the fulcrum shaft (33) (34). A working space can be formed between the side cover (38) and the side surface where the feed chain (5) is stretched at one side of the crimping net (37), which is the lower receiving net of the handling cylinder (6). The side cover (38) is rotated laterally to open the threshing part (4) side surface, and there is no burden of lowering the side cover (38) as in the prior art, The operation of separating or joining the side cover (38) to the threshing part (4) side is lighter than before. And there is no hassle to replace the crimp net (37) over the side cover (38) as in the prior art, and the behavior of the worker on the threshing part (4) side part is made by the side cover (38). Eliminating the problems that are restricted, the operator can easily perform operations such as attaching and detaching the crimp net (37) on the side of the threshing portion (4), and simplify the handling operation.
[0013]
Further, the feed chain (5) stretched in the front-rear direction is attached to the side surface of the threshing part (4) via a movable fulcrum shaft (33), and the feed chain (5) side is engaged / disengaged from the side surface of the threshing part (4). It is connected by a lock plate (45), which is a possible hook, and a guide lever (49), which is an operation lever, is connected to the lock plate (45), in the direction of rotation around the fulcrum shaft (33) of the feed chain (5). The lock plate (45) and the pin (43) to be engaged and disengaged by operating the guide lever (49) are arranged opposite to the threshing part (4) side and the feed chain (5) side, and the top of the threshing part (4) The side wall cover (18) and the flange (21) are configured to be integrally movable upward, and the feed chain (5) is combined with a side cover (38) covering the feed chain (5). , Outside around the fulcrum shaft (33) Rotatably make up to. And since the feed chain (5) is rotated in the horizontal direction and the threshing part (4) side surface is greatly opened, there is no burden of lifting and lowering the feed chain (5) as in the prior art, and the threshing part (4) The operation of separating or joining the feed chain (5) to the side surface is performed lighter than before, and there is no hassle to replace the crimp net (37) through the feed chain (5) as in the past, The trouble that the behavior of the worker on the threshing part (4) side part is regulated by the feed chain (5) is eliminated, and the rotation operation of the feed chain (5) can be performed only by the engagement / disengagement of the lock plate (45). The operator can easily remove and rotate the feed chain (5) with the threshing part (4) side surface and rotate it easily by the operator, simplifying the handling operation, and the lock plate (45) and pin ( 3) is arranged to face the threshing section (4) and the feed chain (5), so that the lock feed structure of the rotatable feed chain (5) can be easily made by the pin (43) and the lock plate (45). The feed chain (5) side is firmly supported by the fulcrum shafts (33) and (34), the pin (43) and the lock plate (45), and vibration noise and deformation damage are caused on the feed chain (5) side. Reduction and improvement of the engagement function.
[0014]
Further, in the combine in which the feed chain (5) is stretched in the front-rear direction on one side of the threshing part (4), the feed chain (5) is provided movably around the fulcrum shafts (33) and (34), and the fulcrum shaft (33) A chain cover (27), which is a frame to be connected to (34), supports a drive sprocket (26) of the feed chain (5), and a side cover (38) provided on one side of the handling cylinder (6). ) Is attached to the fulcrum shaft (33) via the chain rail (27), and the upper wall cover (18) of the threshing part (4) and the ridge (21) are integrally movable upward. At the same time, the rear part of the feed chain (5) is supported by a support (31), which is a support member standing on the rear side of the threshing part (4), via the fulcrum shaft (33). Meanwhile, the front part of the feed chain (5) It is configured to be engaged disengaged via a locking device guide lever threshing section (4) side (49). And there is no burden of detaching the feed chain (5) and the side cover (38) as in the prior art, and the feed chain (5) and the side cover (38) are separated from or joined to the side surface of the threshing part (4). The operation is lighter than before, and there is no need to replace the crimp net (37) through the feed chain (5) and the side cover (38) as in the past, and the work on the threshing part (4) side part The operation of the person is restricted by the feed chain (5) and the side cover (38), and the drive sprocket (26) is provided on the fulcrum shafts (33) and (34). The feed chain (5) is rotated without detaching the sprocket (26), the workability is improved by rotating the feed chain (5), and the drive to the feed chain (5) is improved. The sprocket (26) mounting accuracy can be easily maintained, and the side cover (38) can be rotated to easily secure a work space for replacing the crimp net (37) and the fulcrum shaft (33) (34). In addition, the drive sprocket (26) is arranged before and after the side cover (38) to simplify the mounting structure such as the transmission mechanism and the fulcrum shafts (33) and (34) and to improve the support strength.
[0015]
Moreover, the horizontal rotation fulcrum shafts (33) and (34) are provided by causing the fixing brackets (35) and (36), which are bearing members to be fixed to the outer surface of the threshing portion (4), to protrude to the outside of the machine. (33) (34) is fixed to the barrel side cover (38) side and connected to the fixing bracket (35) (36) so that it can be inserted and removed in the vertical direction. 38), and the fixing brackets (35) and (36) are horizontally projected on the side surface of the threshing portion (4) to open the feed chain (5) and the side surface of the threshing portion (4). The horizontal rotation fulcrum shaft (33) (34) mounting position is not limited by the horizontal protrusion of the fixed brackets (35) (36).
[0016]
As apparent from the above, in the combine that stretches the feed chain (5) in the front-rear direction on one side of the threshing portion (4), the feed chain (5) is stretched on the chain rail (27) that is a frame, A side cover (38) that covers the side of the handling cylinder (6) to be installed in the threshing part (4) is attached to the chain rail (27), and the chain rail (27) is attached to the side cover (38). and forming an elongated than longitudinal width, only setting a vertical axis pivot axis (33) on the rear side to project from the side cover (38), the chain rail around the fulcrum shaft (33) ( 27), the feed chain (5) can be rotated outward together with the side cover (38).
Then, the feed chain (5) is moved outward along with the side cover (38) around the fulcrum shaft (33), so that the threshing part (4) side surface and the rear side surface of the cutting part (8) are largely opened. Thus, there is no burden of detaching the feed chain (5) and the side cover (38) as in the prior art, and the feed chain (5) and the side cover (38) are separated from or joined to the side surface of the threshing part (4). The operation is lighter than before, and there is no need to replace the receiving net (37) through the feed chain (5) and the side cover (38) as in the prior art, and the threshing part (4) and the cutting part (8 ) In which the behavior of the worker at the side surface is restricted by the feed chain (5) and the side cover (38) can be eliminated.
At this time, the fulcrum shaft (33) is formed longer than the front-rear width of the side cover (38) and is provided on the rear side of the chain rail (27) protruding from the side cover (38). The side cover (38) is not restricted.
[0017]
In the present embodiment, the rotation fulcrum shafts (33) and (34) that support the feed chain (5) so as to be freely opened are connected to the sprocket shaft (57) of the driven sprocket (30). Since the size (t) is located closer to the threshing main body than the feed chain (5) at the rear position, the rear side of the pivot plate (29) (32) which becomes the last end when the feed chain (5) is opened The opening allowance to the threshing body side of the end is minimized, and safe opening work without inconvenience such as interference in a state where the entire width of the machine body is suppressed within a certain dimension without protruding the feed chain (5) outside the threshing body. Can be done.
[0018]
Further, when the feed chain (5) is rotated and released, the feed chain (5) is wound around the drive sprocket (26) and is opened integrally with the chain rail (27) (28) or the like. Therefore, the opening operation of the feed chain (5) can be easily performed and the work efficiency is excellent, and when the feed chain (5) is opened, the handling cylinder side cover (38) is also pulled out to the outside at the same time. (4) The side surface is in an open state, and inspection and maintenance in the handling chamber and replacement work of the crimp net (37) can be performed conveniently.
[0019]
【The invention's effect】
In the present invention, in the combine in which the feed chain (5) is stretched in the front-rear direction on one side of the threshing portion (4), the feed chain (5) is stretched on the chain rail (27) as a frame, and the chain rail A side cover (38) that covers the side of the handling cylinder (6) to be installed in the threshing part (4) is attached to (27), and the chain rail (27) is wider than the front and rear width of the side cover (38). also with formed in a long, only set a vertical axis pivot axis (33) on the rear side to project from the side cover (38), said pivot shaft (33) above Chen rail (27) around the The feed chain (5) is configured to be rotatable outward together with the side cover (38).
In this way, the feed chain (5) is moved outward along with the side cover (38) around the fulcrum shaft (33), so that the threshing part (4) side surface and the rear side surface of the cutting part (8) are enlarged. Since it can be opened, there is no burden of detaching the feed chain (5) and the side cover (38) as in the prior art, and the feed chain (5) and the side cover (38) with respect to the side surface of the threshing part (4). The threshing part (4) is performed without the trouble of exchanging the receiving net (37) through the feed chain (5) and the side cover (38) as in the past. And the malfunction by which an operator's action in the side part of a cutting part (8) is controlled by a feed chain (5) and a side cover (38) can be eliminated.
At this time, the fulcrum shaft (33) is formed longer than the front-rear width of the side cover (38) and is provided on the rear side of the chain rail (27) protruding from the side cover (38). The side cover (38) is not restricted.
[Brief description of the drawings]
FIG. 1 is an explanatory side view of a feed chain unit.
FIG. 2 is an overall side view of the combine.
FIG. 3 is a plan view of the same.
FIG. 4 is a cross-sectional explanatory view of a threshing portion.
FIG. 5 is an explanatory plan view of a feed chain unit.
FIG. 6 is an explanatory view of the same part.
[Explanation of symbols]
(4) Threshing section (5) Feed chain (6) Handling cylinder (38) Side cover

Claims

In the combine for extending the feed chain (5) in the front-rear direction on one side of the threshing part (4),
A side cover (5) that stretches the feed chain (5) on the chain rail (27), which is a frame, and covers the side of the barrel (6) that is internally installed in the threshing part (4) on the chain rail (27) ( 38),
The chain rail (27) is formed longer than the front / rear width of the side cover (38) , and a fulcrum shaft (33) as a vertical axis is provided on the rear side protruding from the side cover (38). The
A combine characterized in that the feed chain (5) is configured to be rotatable outward together with the side cover (38) through the chain rail (27) around the fulcrum shaft (33).