JP3623746B2

JP3623746B2 - Combine

Info

Publication number: JP3623746B2
Application number: JP2001060092A
Authority: JP
Inventors: 茂實日高
Original assignee: Yanma Agricultural Equipment Co Ltd
Current assignee: Yanma Agricultural Equipment Co Ltd
Priority date: 2001-03-05
Filing date: 2001-03-05
Publication date: 2005-02-23
Anticipated expiration: 2016-03-12
Also published as: JP2001269041A

Description

【０００１】
【発明の属する技術分野】
本発明は連続的に穀稈を刈取って脱穀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、エンジンの動力を脱穀部に伝えるベルトをテンションローラによって緊張させ、前記テンションローラをベルトに接離させて脱穀部への動力伝達を入切していたから、前記テンションローラによって形成する脱穀クラッチの入切操作力を容易に軽減し得ないと共に、テンションローラの接離によってベルトの伝動トルクが不安定に変化し易い等の取扱い操作上及びで伝動効率上の問題がある。
【０００３】
【課題を解決するための手段】
然るに、本発明は、エンジンと、フィードチェン及び扱胴及び選別機構を設ける脱穀部と、刈取部と、無段変速機を設ける走行変速ケースを備え、油圧シリンダによってオンにする脱穀クラッチを介してエンジンの駆動伝動軸に脱穀部を駆動する出力軸を連結させ、前記駆動伝動軸と無段変速機の出力側を刈取部に連結させ、走行変速ケースの車速同調出力と脱穀部への出力軸出力によって刈取部を駆動するコンバインにおいて、前記エンジンの動力をカウンタケースに伝え、脱穀出力軸、選別出力軸、刈取出力軸をカウンタケースに設け、エンジンの駆動伝動軸を脱穀クラッチを介して選別出力軸に連結させ、選別出力軸に脱穀出力軸を連結させ、前記脱穀出力軸に設ける脱穀プーリを介して扱胴及び処理胴を駆動すると共に、刈取低速ギヤ及び刈取高速ギヤを係合軸支させた選別出力軸に脱穀出力軸を連結させ、油圧シリンダによってオンにする刈取低速クラッチ及び刈取高速クラッチを設け、選別出力軸の各ギヤを刈取出力軸に各クラッチを介して連結させる一方、走行変速ケースに車速同調出力軸を設け、走行クローラの前進走行速度に比例させて車速同調出力軸を回転させ、刈取出力軸による低速または高速の定速度或いは車速同調出力軸によって走行速度に比例した速度で刈取部及びフィードチェンを駆動するもので、伝動効率の向上または伝動力変化の低減などを容易に図り得るものである。
【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はコンバインの全体側面図、図２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）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機である脱穀部、（８）は刈刃（９）及び穀稈搬送機構（１０）などを備える刈取部、（１１）は刈取フレーム（１２）を介して刈取部（８）を昇降させる油圧シリンダ、（１３）は排藁チェン（１４）終端を臨ませる排藁処理部、（１５）は脱穀部（４）からの穀粒を揚穀筒（１６）を介して搬入する穀物タンク、（１７）は前記タンク（１５）の穀粒を機外に搬出する排出オーガ、（１８）は運転操作ハンドル（１９）及び運転席（２０）を備える運転キャビン、（２１）は運転キャビン（１８）下方に設けるエンジンであり、連続的に穀稈を刈取って脱穀するように構成している。
【０００５】
また、図３に示す如く、図中（２２）は機体の前後方向に軸架する軸流型の扱胴（６）を内設させる扱室、（２３）は前記扱室（２２）に穀稈を挿入する扱口、（２４）は前記扱室（２２）下方に張架させるクリンプ網、（２５）は前記クリンプ網（２４）下方に前端を臨ませて前後方向に揺動自在に支持する揺動選別盤、（２６）（２７）は前記クリンプ網（２４）の下方に上下２段に配設する選別盤（２５）の前後フィードパン、（２８）は前フィードパン（２６）の後端側に上下揺動自在に設ける選別篩い線、（２９）は後フィードパン（２７）後端後方に連設するチャフシーブ、（３０）はチャフシーブ（２９）下方に配設するグレンシーブ、（３１）は前後フィードパン（２６）（２７）の上下間に選別風を送給するプレファンである送塵ファン、（３２）はチャフシーブ（２９）とグレンシーブ（３０）間及びグレンシーブ（３０）下方に選別風を送給するメインの送風装置である唐箕、（３３）は揚穀筒（１６）に連通させて穀物タンク（１５）に穀粒を取出す１番コンベア、（３４）は２番物を２番還元装置である２番還元コンベア（３５）を介し前記選別盤（２５）の篩い線（２８）上方に還元する２番コンベア、（３６）は前記選別盤（２５）を前後及び上下動させる揺動駆動軸、（３７）は前記選別盤（２５）の後端上方に配設する吸排塵ファン、（３８）は該ファン（３７）上方を遮閉して排藁を搬出案内する四番樋であり、前記扱胴（６）及び処理胴（７）により脱穀された穀粒を揺動選別盤（２５）で選別し整粒のみを前記穀物タンク（１５）に取出し、前記選別盤（２５）後端の三番口（３９）から藁屑を機外に放出させると共に、排藁を排藁チェン（１４）を介し排藁処理部（１３）に送り込んで排藁カッタ（１３ａ）により切断して機外に排出させるように構成している。また、前記扱室（２２）後部の排塵口（４０）を介して扱胴（６）後部の脱粒物を処理胴（７）に送給し、扱胴（６）の脱粒物を処理胴（７）によって再処理して揺動選別盤（２５）上に落下させ、処理胴（７）からの穀粒を二番コンベア（３４）に収集し、かつ藁屑をファン（３７）または三番口（３９）から機外に排出させるように構成している。
【０００６】
さらに、図４、図５、図６に示す如く、前記エンジン（２１）の動力をカウンタケース（４１）に伝える自在継手付ドライブシャフト（４２）を設けると共に、脱穀出力軸（４３）、選別出力軸（４４）、刈取出力軸（４５）、走行出力軸（４６）をカウンタケース（４１）に設ける。前記脱穀出力軸（４３）に設ける脱穀プーリ（４７）を介して扱胴（６）及び処理胴（７）を駆動すると共に、送塵ファン（３１）、唐箕（３２）、１番コンベア（３３）、二番コンベア（３４）、揺動駆動軸（３６）、吸排塵ファン（３７）、排藁カッタ（１３ａ）を、選別出力軸（４４）の選別プーリ（４８）を介して駆動する。
【０００７】
また、前記ドライブシャフト（４２）を連結させるカウンタケース（４１）の入力軸（４９）上に作業油圧ポンプ（５０）を設け、入力軸（４９）を介してポンプ（５０）を駆動し、油タンクを兼用するカウンタケース（４１）内の作動油を前記油圧シリンダ（１１）などに送給して作動させると共に、前記走行出力軸（４６）及び作業軸（５１）にギヤ（５２）を介して入力軸（４９）を常時連結させ、刈取低速ギヤ（５３）及び刈取高速ギヤ（５４）を係合軸支させた選別出力軸（４４）に、油圧シリンダ（５５）によってオンにする脱穀クラッチ（５６）を介して作業軸（５１）を連結させ、選別出力軸（４４）にベベルギヤ（５７）を介して脱穀出力軸（４３）を連結させ、脱穀クラッチ（５６）を介して各プーリ（４７）（４８）を駆動し、脱穀部（４）各部に動力を伝えるように構成している。
【０００８】
また、油圧シリンタ（５８）（５９）によってオンにする刈取低速クラッチ（６０）及び刈取高速クラッチ（６１）を設け、選別出力軸（４４）の各ギヤ（５３）（５４）を刈取出力軸（４５）に各クラッチ（６０）（６１）を介して連結させると共に、刈取出力軸（４５）に一方向クラッチ（６２）を介して刈取プーリ（６３）を軸支させ、各ギヤ（５３）（５４）の低速及び高速出力によって刈取プーリ（６３）を回転させる一方、刈取出力軸（４５）の回転よりも高速回転で刈取プーリ（６３）が空転するように構成している。そして、刈取部（８）の各部を駆動する刈取入力１軸（６４）の入力プーリ（６５）に刈取プーリ（６３）をベルト連結させ、前記１軸（６４）を介してフィードチェン（５）を駆動すると共に、前記１軸（６４）に手動クラッチ（６６）を介して刈取２軸（６７）を連結させ、刈取部（８）各部に動力を伝えるように構成している。
【０００９】
さらに、前記走行出力軸（４６）に走行プーリ（６８）を軸支させると共に、左右一対の走行クローラ（２）（２９を駆動する走行変速ケース（６９）を設け、油圧ポンプ及び油圧モータを内蔵する油圧無段変速機（７０）を走行変速ケース（６９）に取付け、走行出力軸（４６）の走行プーリ（６８）に変速機（７０）の変速入力軸（７１）をベルト連結させ、エンジン（２１）動力によって変速入力軸（７１）を常時回転させるもので、変速機（７０）の変速出力により変速ケース内の変速ギヤを介して左右の走行クローラ（２）（２）を駆動する。また、変速入力軸（７１）上にチャージポンプ（７２）を取付けて入力軸（７１）によってポンプ（７２）を駆動し、油タンクを兼用するカウンタケース（４１）内の作動油をチャージポンプ（７２）によって変速機（７０）に補給するもので、チャージポンプ（７２）を常時駆動するから、前記作業油圧ポンプ（５０）の代わりにチャージポンプ（７２）を用いて作業油圧を供給できる。
【００１０】
また、前記走行変速ケース（６９）に車速同調出力軸（７３）を設け、走行クローラ（２）の前進走行速度に比例させて出力軸（７３）を増減速回転させると共に、出力軸（７３）に一方向クラッチ（７４）を介して軸支させる車速同調プーリ（７５）と、前記刈取入力１軸（６４）の入力プーリ（７６）を、刈取テンションクラッチ（７７）を介してベルト連結させる。そして、テンションクラッチ（７７）切のとき、刈取出力軸（４５）の低高速出力により１軸（６４）を駆動すると共に、テンションクラッチ（７７）入のとき、低速走行状態で車速同調出力軸（７３）回転数が刈取出力軸（４５）回転数よりも低いと、刈取出力軸（４５）によって１軸（６４）が駆動される一方、高速走行状態で車速同調出力軸（７３）回転数が刈取出力軸（４５）回転数よりも高いと、車速同調出力軸（７３）によって１軸（６４）が駆動され、走行速度に比例した速度で刈取部（８）及びフィードチェン（５）が駆動される。
【００１１】
また、図５において、図中（７８）は前記エンジン（２１）に冷却風を供給する空冷ファン、（７９）は運転キャビン（１８）の冷房用コンプレッサであり、前記変速入力軸（７１）に空冷ファン（７８）及びコンプレッサ（７９）を連結させて駆動する。また、図６において、図中（７０ａ）はチャージポンプ（７２）に接続させる給油管（７０ｂ）のストレーナ、（７０ｃ）はポンプ（７２）の戻り油管である。
【００１２】
上記のように、エンジン（２１）の動力をドライブシャフト（４２）によりカウンタケース（４１）に入力させると共に、脱穀部（４）、刈取部（８）、走行変速ケース（６９）にカウンタケース（４１）から動力を分配し、従来のベルト横引荷重によってエンジン（２１）が一方向に引張られる不具合をなくすことができ、エンジン（２１）の設置構造の簡略化並びに耐久性向上などを図ると共に、刈取部（８）駆動機能の向上並びに油圧配管の省略などを図るもので、カウンタケース（４１）から一定回転（低速、高速）用の動力を刈取出力軸（４５）を介して刈取部（８）に分配でき、作業者が任意に高速回転で刈取部（８）を駆動でき、作業の効率を向上させると共に、油圧タンクを兼ねるカウンタケース（４１）に作業油圧ポンプ（５０）を取付けるから、エンジン（２１）に油圧ポンプを設ける必要がなく、油圧ポンプ（５０）のタンク側配管を省ける。
【００１３】
さらに、エンジン（２１）の動力をカウンタケース（４１）に入力させ、脱穀部（４）、刈取部（８）、走行変速ケース（６９）にエンジン（２１）駆動力を分配すると共に、刈取低速及び高速クラッチ（６０）（６１）をカウンタケース（４１）に内設させ、従来のベルトテンションクラッチを不要にしてベルト調整など保守作業の簡略化を行えると共に、エンジン（２１）周辺構造の簡略化並びに防振防音などを図れる。また、脱穀クラッチ（５６）をカウンタケース（４１）に内設させ、脱穀クラッチ（５６）の動力伝達下手側に刈取低速及び高速クラッチ（６０）（６１）を配設させ、脱穀部（４）を駆動しているときにだけ刈取部（８）を駆動でき、脱穀部（４）を停止させた状態で刈取部（８）が駆動される不具合をなくすことができると共に、カウンタケース（４１）からの刈取り駆動力と、走行変速ケース（６９）からの車速同調刈取り駆動力を、刈取部（８）の刈取入力軸である刈取入力１軸（６４）に伝達させるように構成し、カウンタケース（４１）からの刈取り駆動力によって刈取部（８）の最低駆動速度を維持し乍ら、走行変速ケース（６９）からの車速同調刈取り駆動力によって車速に比例した速度で刈取部（８）を駆動させる。
【００１４】
上記から明らかなように、エンジンと、エンジン（２１）と、扱胴（６）及び選別機構である揺動選別盤（２５）を設ける脱穀部（４）と、刈取部（８）と、無段変速機（７０）を設ける走行変速ケース（６９）を備えるコンバインにおいて、油圧力で入切する脱穀クラッチ（５６）を介してエンジン（２１）の駆動伝動軸である入力軸（４９）に脱穀部（４）の駆動軸である選別出力軸（４４）を連結させ、前記入力軸（４９）を介して作業油圧ポンプ５０を駆動させ、前記入力軸（４９）に無段変速機（７０）の入力側を連結させ、走行変速ケース（６９）の車速同調出力と脱穀部（４）の選別出力軸（４４）出力によって刈取部（８）を駆動する。そして、前記脱穀クラッチ（５６）の入切操作力を従来のテンションローラクラッチ構造よりも軽減させ、しかも脱穀部（４）に動力を伝えるベルト張力を略一定に保って伝動効率の向上または伝動力変化の低減などを図ると共に、前記作業油圧ポンプ（５０）を本機側もに設置して組立分解作業性の向上などを図り、また最低刈取速度を確保し乍ら車速同調駆動する刈取部（８）への伝動構造の簡略化並びにメンテナンス作業性の向上などを図る。
【００１５】
また、前記走行変速ケース（６９）からの走行クローラ（２）駆動出力を停止あるいは逆転させ、機体を停止あるいは後進させている状態で、機体が前進していなくても、脱穀クラッチ（５６）が入で脱穀部（４）駆動状態のとき、刈取部（８）を駆動する前記クラッチ（６０）（６１）を入にすることにより、刈取部（８）をある一定速度以上で駆動させることができ、刈取部（８）側からフィードチェン（５）に穀稈を受け渡す穀稈バトンタッチ部で稈のこぼれや乱れを防ぐことができる。また、前記の作業において、脱穀クラッチ（５６）が入った状態であるから、フィードチェン（５）に残った穀稈を脱穀部（４）に送り込むことができ、例えば圃場枕地での方向転換などを必要とするときでも高能率で円滑な刈取り脱穀作業を実現できる。
【００１６】
さらに、図７、図８、図９に示す如く、筐体（８０）によって形成する四角形略密閉状態のエンジン室（８１）にエンジン（２１）を内設させ、筐体（８０）の左側面開口（８２）を介してドライブシャフト（８３）を取付けると共に、筐体（８０）外側前方にエンジン（２１）水冷用ラジエータ（８４）を右向きに設置させ、ラジエータ（８４）の背面機内側に前記空冷ファン（７８）を配設させる。また、前記筐体（８０）右側及びラジエータ（８４）正面側に風洞カバー（８５）を取付け、回転させて吸込み面の塵を除去させるロータリスクリーン（８６）を風洞カバー（８５）内部の冷却風路（８７）に設け、前記スクリーン（８６）、風路（８７）及びラジエータ（８４）を介して空冷ファン（７８）に外部空気を取込み、ラジエータ（８４）を冷却する。
【００１７】
また、前記筐体（８０）前面に導入口（８８）を形成し、前記空冷ファン（７８）の背面後半分からの排風を導入口（８８）からエンジン室（８１）に流入させる導入ガイド板（８９）を設け、ラジエータ（８４）を冷却したファン（７８）の冷却風の一部をエンジン室（８１）に導入させると共に、前記筐体（８０）後面に導出口（９０）を形成し、脱穀部（４）に設ける送塵ファン（３１）及び唐箕（３２）の外気取入口（９１）（９２）に導出ガイド板（９３）を介して導出口（９０）を連通させ、エンジン室（８１）内の暖気を導出口（９０）から各取入口（９１）（９２）を介して送塵ファン（３１）及び唐箕（３２）に供給させ、エンジン（２１）からの暖気を選別風として揺動選別盤（２５）及びコンベア（３３）（３４）などを乾燥させ乍ら選別作業を行わせるもので、揺動選別盤（２５）上の湿材を乾燥させて穀粒の収集効率を高めたり、塵を乾燥させて選別風による飛散排出を容易にして塵の堆積を防ぐものである。
【００１８】
上記のように、作業者が座乗する運転席（２０）の近くにエンジン（２１）を配設させるコンバインにおいて、エンジン（２１）を内設させる閉塞空間であるエンジン室（８１）に隣接させてラジエータ（８４）を配設させ、エンジン（２１）とラジエータ（８４）の間を筐体（８０）によって遮閉させ、エンジン（２１）設置場所を閉塞して低騒音化を容易に行うことができると共に、エンジン（２１）からラジエータ（８４）を分離させることによってラジエータ（８４）の冷却効率を容易に向上させることができる。また、エンジン（２１）を内設させる閉塞空間であるエンジン室（８１）にラジエータ（８４）の冷却風の一部を導入させ、脱穀選別風供給部である外気取入口（９１）（９２）に導出させ、ラジエータ（８４）の冷却風を利用してエンジン（２１）の冷却を行い、かつ脱穀選別風供給部（９１）（９２）に温風を送給でき、エンジン（２１）騒音低下並びにエンジン（２１）冷却並びにエンジン（２１）排熱利用を図ると共に、ラジエータ（８４）を冷却する空冷ファン（７８）にエンジン（２１）以外の常時回転軸である変速入力軸（７１）を連結させ、空冷ファン（７８）をエンジン（２１）出力軸に連結させる必要がない構造とし、空冷ファン（７８）及びエンジン（２１）の設置を互に制限されることなく行えるように構成している。
【００１９】
【発明の効果】
以上実施例から明らかなように本発明は、エンジン（２１）と、フィードチェン（５）及び扱胴（６）及び選別機構（２５）を設ける脱穀部（４）と、刈取部（８）と、無段変速機（７０）を設ける走行変速ケース（６９）を備え、油圧シリンダ（５５）によってオンにする脱穀クラッチ（５６）を介してエンジン（２１）の駆動伝動軸（４９）に脱穀部（４）を駆動する出力軸（４３）を連結させ、前記駆動伝動軸（４９）と無段変速機（７０）の出力側を刈取部（８）に連結させ、走行変速ケース（６９）の車速同調出力と脱穀部（４）への出力軸（４３）出力によって刈取部（８）を駆動するコンバインにおいて、前記エンジン（２１）の動力をカウンタケース（４１）に伝え、脱穀出力軸（４３）、選別出力軸（４４）、刈取出力軸（４５）をカウンタケース（４１）に設け、エンジン（２１）の駆動伝動軸（４９）を脱穀クラッチ（５６）を介して選別出力軸（４４）に連結させ、選別出力軸（４４）に脱穀出力軸（４３）を連結させ、前記脱穀出力軸（４３）に設ける脱穀プーリ（４７）を介して扱胴（６）及び処理胴（７）を駆動すると共に、刈取低速ギヤ（５３）及び刈取高速ギヤ（５４）を係合軸支させた選別出力軸（４４）に脱穀出力軸（４３）を連結させ、油圧シリンダ（５８）（５９）によってオンにする刈取低速クラッチ（６０）及び刈取高速クラッチ（６１）を設け、選別出力軸（４４）の各ギヤ（５３）（５４）を刈取出力軸（４５）に各クラッチ（６０）（６１）を介して連結させる一方、走行変速ケース（６９）に車速同調出力軸（７３）を設け、走行クローラ（２）の前進走行速度に比例させて車速同調出力軸（７３）を回転させ、刈取出力軸（４５）による低速または高速の定速度或いは車速同調出力軸（７３）によって走行速度に比例した速度で刈取部（８）及びフィードチェン（５）を駆動するもので、伝動効率の向上または伝動力変化の低減などを容易に図ることができるものである。
【図面の簡単な説明】
【図１】コンバインの全体側面図。
【図２】同平面図。
【図３】脱穀部の側面図。
【図４】コンバインの駆動説明図。
【図５】同拡大図。
【図６】カウンタケースの説明図。
【図７】エンジン部の側面図。
【図８】同平面図。
【図９】同正面図。
【符号の説明】
（４）脱穀部
（６）扱胴
（８）刈取部
（２１）エンジン
（２５）揺動選別盤（選別機構）
（４４）選別出力軸（駆動軸）
（４９）入力軸（駆動伝動軸）
（５０）作業油圧ポンプ
（５６）脱穀クラッチ
（６９）走行変速ケース
（７０）無段変速機[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a combine for continuously harvesting and threshing grains.
[0002]
[Problems to be solved by the invention]
Conventionally, a belt that transmits engine power to the threshing unit is tensioned by a tension roller, and the tension roller is brought into contact with and separated from the belt so that power transmission to the threshing unit is turned on and off. The cutting operation force cannot be easily reduced, and there is a problem in the transmission operation and in the transmission efficiency such that the transmission torque of the belt tends to be unstablely changed due to the contact and separation of the tension roller.
[0003]
[Means for Solving the Problems]
However, the present invention includes an engine, a threshing portion provided with a feed chain, a handling cylinder and a sorting mechanism, a cutting portion, and a traveling speed change case provided with a continuously variable transmission, via a threshing clutch which is turned on by a hydraulic cylinder. An output shaft for driving the threshing unit is connected to the drive transmission shaft of the engine, the output side of the drive transmission shaft and the continuously variable transmission is connected to the cutting unit, and the vehicle speed synchronization output of the traveling transmission case and the output shaft to the threshing unit In the combine that drives the cutting part by output, the power of the engine is transmitted to the counter case, the threshing output shaft, the sorting output shaft, and the cutting output shaft are provided in the counter case, and the engine drive transmission shaft is sorted and output through the threshing clutch. is connected to the shaft, by connecting the threshing output shaft sorting output shaft, it drives the threshing drum and processing cylinders through the threshing pulley provided on the threshing output shaft, reaper slow formate The threshing output shaft is connected to the sorting output shaft on which the cutting high-speed gear is supported, and a low-cutting clutch and a cutting high-speed clutch that are turned on by a hydraulic cylinder are provided. While connected via a clutch, a vehicle speed tuning output shaft is provided in the traveling speed change case, the vehicle speed tuning output shaft is rotated in proportion to the forward traveling speed of the traveling crawler, and the low speed or high speed constant speed or vehicle speed tuning is performed by the cutting output shaft. The cutting unit and the feed chain are driven by the output shaft at a speed proportional to the traveling speed, and the transmission efficiency can be improved or the change in the transmission power can be easily reduced.
[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 overall side view of a combine, FIG. 2 is a plan view thereof, in which (1) is a track frame for mounting a traveling crawler (2), and (3) is a machine installed on the track frame (1). A threshing unit, (4) is a threshing machine that stretches the feed chain (5) to the left and incorporates a handling cylinder (6) and a processing cylinder (7), (8) is a cutting blade (9) and A mowing unit provided with a grain culm transport mechanism (10), (11) is a hydraulic cylinder that raises and lowers the mowing unit (8) via the mowing frame (12), and (13) faces the end of the waste chain (14) A waste disposal section, (15) is a grain tank that carries the grain from the threshing section (4) through the milling cylinder (16), and (17) carries the grain from the tank (15) out of the machine. A discharge auger, (18) a driving cabin comprising a driving handle (19) and a driver seat (20); 21) is an engine provided with the operating cabin (18) downward, and configured to threshing continuously harvests culms.
[0005]
In addition, as shown in FIG. 3, (22) in the figure is a handling chamber in which an axial flow type handling cylinder (6) that is axially mounted in the front-rear direction of the airframe is installed, and (23) is a grain in the handling chamber (22). A handling port for inserting a scissors, (24) is a crimping net stretched below the handling chamber (22), and (25) is supported to be swingable in the front-rear direction with the front end facing the crimping net (24). The oscillating sorters that perform (26) and (27) are the front and rear feed pans of the sorter (25) arranged in two stages above and below the crimp net (24), and (28) is the front feed pan (26). A selection sieve line provided on the rear end side so as to be swingable up and down, (29) a rear feed pan (27) a chaff sheave provided continuously behind the rear end, and (30) a grain sheave disposed below the chaff sheave (29), (31 ) Is a pre-fan that feeds sorting air between the top and bottom of the front and rear feed pans (26, 27) The dust feed fan (32) is the main blower that feeds the sorting air between the chaff sheave (29) and the Glen sheave (30) and below the sheave (30), (33) is the milling cylinder (16) No. 1 conveyor that communicates to the grain tank (15) and (34) passes the second item through the No. 2 reduction conveyor (35), which is the No. 2 reduction device, and the sieving line of the sorting panel (25) (28) No. 2 conveyor that returns upward, (36) is a swing drive shaft that moves the sorting plate (25) back and forth and up and down, and (37) is arranged above the rear end of the sorting plate (25). A dust suction fan (38) is a fourth fan that shuts out the upper portion of the fan (37) and carries out the discharge of the waste, and removes the grains threshed by the handling cylinder (6) and the processing cylinder (7). Sorted with a rocking sorter (25) and only the sized particles are taken out to the grain tank (15). In addition to discharging the waste from the third port (39) at the rear end of the sorting board (25), the waste is sent to the waste processing section (13) via the waste chain (14) and discharged. It is configured to be cut out by the cutter (13a) and discharged out of the apparatus. Further, the degranulated material in the rear part of the handling cylinder (6) is fed to the processing cylinder (7) through the dust discharge port (40) in the rear part of the handling chamber (22), and the degranulated substance in the handling cylinder (6) is supplied to the processing cylinder. (7) is reprocessed and dropped onto the rocking sorter (25), the grains from the processing drum (7) are collected on the second conveyor (34), and the sawdust is collected in the fan (37) or three It is comprised so that it may discharge | emit to the exterior from a number port (39).
[0006]
Further, as shown in FIGS. 4, 5, and 6, a drive shaft (42) with a universal joint for transmitting the power of the engine (21) to the counter case (41) is provided, and a threshing output shaft (43) and a sorting output are provided. A counter case (41) is provided with a shaft (44), a cutting output shaft (45), and a travel output shaft (46). The handling cylinder (6) and the processing cylinder (7) are driven via a threshing pulley (47) provided on the threshing output shaft (43), and a dust feeding fan (31), a red pepper (32), a first conveyor (33 ), The second conveyor (34), the swing drive shaft (36), the suction / exhaust dust fan (37), and the waste cutter (13a) are driven via the sorting pulley (48) of the sorting output shaft (44).
[0007]
Further, a working hydraulic pump (50) is provided on the input shaft (49) of the counter case (41) to which the drive shaft (42) is connected, and the pump (50) is driven via the input shaft (49) to The hydraulic oil in the counter case (41), which also serves as a tank, is supplied to the hydraulic cylinder (11) for operation, and the travel output shaft (46) and the work shaft (51) are connected via a gear (52). The threshing clutch that is always turned on by the hydraulic cylinder (55) to the sorting output shaft (44) in which the input shaft (49) is always connected and the cutting low speed gear (53) and the cutting high speed gear (54) are supported by the engagement shaft. (56) is connected to the work shaft (51), the sorting output shaft (44) is connected to the threshing output shaft (43) via the bevel gear (57), and each pulley ( 47) (48) Driven, and configured to transmit power to the threshing section (4) each section.
[0008]
Further, there are provided a cutting low speed clutch (60) and a cutting high speed clutch (61) which are turned on by hydraulic cylinders (58) and (59), and the gears (53) and (54) of the sorting output shaft (44) are connected to the cutting output shaft ( 45) are connected to each other through the clutches (60) and (61), and the cutting output shaft (45) is pivotally supported by the cutting pulley (63) through the one-way clutch (62), and the gears (53) ( While the cutting pulley (63) is rotated by the low-speed and high-speed output of 54), the cutting pulley (63) is idled at a higher speed than the rotation of the cutting output shaft (45). Then, the cutting pulley (63) is belt-connected to the input pulley (65) of the cutting input single shaft (64) that drives each part of the cutting portion (8), and the feed chain (5) is connected via the single shaft (64). And the cutting shaft (67) is connected to the one shaft (64) via a manual clutch (66) to transmit power to each portion of the cutting portion (8).
[0009]
Further, a travel pulley (68) is pivotally supported on the travel output shaft (46), a pair of left and right travel crawlers (2) (a travel speed change case (69) for driving 29 is provided, and a hydraulic pump and a hydraulic motor are incorporated. A hydraulic continuously variable transmission (70) to be attached to a traveling transmission case (69), and a transmission input shaft (71) of the transmission (70) is belt-coupled to a traveling pulley (68) of a traveling output shaft (46). (21) The transmission input shaft (71) is always rotated by power, and the right and left traveling crawlers (2) and (2) are driven via the transmission gears in the transmission case by the transmission output of the transmission (70). Further, a charge pump (72) is mounted on the transmission input shaft (71), and the pump (72) is driven by the input shaft (71), so that the hydraulic oil in the counter case (41), which also serves as an oil tank, is charged. Since the charge pump (72) is always driven, the work hydraulic pressure can be supplied using the charge pump (72) instead of the work hydraulic pump (50). .
[0010]
In addition, a vehicle speed synchronization output shaft (73) is provided in the travel speed change case (69), and the output shaft (73) is rotated at an increased or reduced speed in proportion to the forward travel speed of the travel crawler (2), and the output shaft (73). A vehicle speed tuning pulley (75) pivotally supported by a one-way clutch (74) and an input pulley (76) of the cutting input one shaft (64) are belt-connected via a cutting tension clutch (77). When the tension clutch (77) is turned off, one shaft (64) is driven by the low-speed output of the cutting output shaft (45), and when the tension clutch (77) is turned on, the vehicle speed-tuned output shaft ( 73) If the rotational speed is lower than the cutting output shaft (45) rotational speed, the cutting output shaft (45) drives one shaft (64), while the vehicle speed tuning output shaft (73) rotational speed is high. When the rotational speed of the cutting output shaft (45) is higher than the rotational speed, one shaft (64) is driven by the vehicle speed tuning output shaft (73), and the cutting portion (8) and the feed chain (5) are driven at a speed proportional to the traveling speed. Is done.
[0011]
In FIG. 5, (78) is an air cooling fan for supplying cooling air to the engine (21), (79) is a cooling compressor for the operation cabin (18), and is connected to the transmission input shaft (71). The air cooling fan (78) and the compressor (79) are connected and driven. In FIG. 6, (70a) is a strainer of the oil supply pipe (70b) connected to the charge pump (72), and (70c) is a return oil pipe of the pump (72).
[0012]
As described above, the motive power of the engine (21) is input to the counter case (41) by the drive shaft (42), and the counter case (4), the reaping part (8), and the traveling transmission case (69) are counter case ( 41) power can be distributed to eliminate the problem that the engine (21) is pulled in one direction by a conventional belt lateral pulling load, simplifying the installation structure of the engine (21) and improving durability. In order to improve the driving function of the cutting part (8) and omit hydraulic piping, power for constant rotation (low speed, high speed) is supplied from the counter case (41) via the cutting output shaft (45). 8), the operator can arbitrarily drive the cutting part (8) at high speed rotation, improve the work efficiency and work hydraulic pump in the counter case (41) that also serves as a hydraulic tank Since attaching a 50), there is no need to provide a hydraulic pump to an engine (21), Habukeru tank side pipe of the hydraulic pump (50).
[0013]
Further, the power of the engine (21) is input to the counter case (41), and the driving force of the engine (21) is distributed to the threshing section (4), the cutting section (8), and the traveling transmission case (69), and the cutting speed is low. In addition, the high-speed clutches (60) and (61) are installed in the counter case (41), so that the conventional belt tension clutch is not required and maintenance work such as belt adjustment can be simplified, and the structure around the engine (21) is simplified. In addition, vibration and soundproofing can be achieved. Moreover, the threshing clutch (56) is installed in the counter case (41), and the chopping low speed and high speed clutches (60) (61) are arranged on the lower power transmission side of the threshing clutch (56), and the threshing part (4) The cutting unit (8) can be driven only when the chopping unit is driven, and the trouble that the cutting unit (8) is driven while the threshing unit (4) is stopped can be eliminated, and the counter case (41) The counter-case is configured to transmit the cutting driving force from the vehicle and the vehicle speed-synchronized cutting driving force from the traveling speed change case (69) to the cutting input 1 shaft (64) which is the cutting input shaft of the cutting portion (8). While the minimum driving speed of the cutting part (8) is maintained by the cutting driving force from (41), the cutting part (8) is moved at a speed proportional to the vehicle speed by the vehicle speed-synchronized cutting driving force from the traveling speed change case (69). Drive.
[0014]
As is clear from the above, the engine, the engine (21), the barrel (6), and the threshing part (4) provided with the swinging sorter (25) as the sorting mechanism, the reaping part (8), In a combine equipped with a traveling transmission case (69) provided with a step transmission (70), threshing is performed on an input shaft (49) which is a drive transmission shaft of the engine (21) via a threshing clutch (56) which is turned on and off by hydraulic pressure. The selection output shaft (44), which is the drive shaft of the section (4), is connected, the working hydraulic pump 50 is driven via the input shaft (49), and the continuously variable transmission (70) is connected to the input shaft (49). And the cutting part (8) is driven by the vehicle speed tuning output of the traveling speed change case (69) and the output of the sorting output shaft (44) of the threshing part (4). Then, the on / off operation force of the threshing clutch (56) is reduced as compared with the conventional tension roller clutch structure, and the belt tension for transmitting the power to the threshing portion (4) is kept substantially constant to improve the transmission efficiency or the transmission power. In addition to reducing the change, the working hydraulic pump (50) is also installed on the machine side to improve the assembling / disassembling workability. 8) Simplify the transmission structure and improve maintenance workability.
[0015]
In addition, the threshing clutch (56) can be operated even when the machine is not moving forward with the traveling crawler (2) drive output from the traveling transmission case (69) being stopped or reversely rotated to stop or reverse the machine. When the threshing part (4) is in the driven state, the reaping part (8) can be driven at a certain speed or higher by turning on the clutch (60) (61) that drives the reaping part (8). It is possible to prevent spillage and disturbance of the cocoon at the cereal baton touch part that delivers the cereal to the feed chain (5) from the cutting part (8) side. Moreover, in the said operation | work, since the threshing clutch (56) is in the state, the cereal residue which remained in the feed chain (5) can be sent into a threshing part (4), for example, the direction change in a field headland High efficiency and smooth mowing and threshing work can be realized even when necessary.
[0016]
Further, as shown in FIGS. 7, 8, and 9, the engine (21) is installed in the engine chamber (81) formed by the casing (80) in a substantially square sealed state, and the left side surface of the casing (80). The drive shaft (83) is mounted through the opening (82), and the engine (21) water cooling radiator (84) is installed to the right in front of the housing (80), and the radiator (84) is placed inside the rear unit of the radiator (84). An air cooling fan (78) is provided. Further, a wind tunnel cover (85) is attached to the right side of the casing (80) and the front side of the radiator (84), and a rotary screen (86) for removing dust on the suction surface by rotating is installed on the cooling air inside the wind tunnel cover (85). External air is taken into the air cooling fan (78) through the screen (86), the air path (87), and the radiator (84) to cool the radiator (84).
[0017]
Further, an introduction port (88) is formed on the front surface of the housing (80), and an introduction guide plate for allowing exhaust air from the rear half of the back of the air cooling fan (78) to flow into the engine chamber (81) from the introduction port (88). (89) is provided, a part of the cooling air of the fan (78) that has cooled the radiator (84) is introduced into the engine chamber (81), and a lead-out port (90) is formed on the rear surface of the casing (80). The exhaust port (90) is communicated with the dust feed fan (31) provided in the threshing part (4) and the outside air intake ports (91) and (92) of the tang (32) via the guide plate (93), and the engine room The warm air in (81) is supplied from the outlet (90) to the dust-feeding fan (31) and the tang (32) through the intake ports (91) and (92), and the warm air from the engine (21) is sorted into the selected wind. As a swing sorter (25) and conveyors (33) (34) This allows the sorting operation to be performed while drying the cake. The wet material on the rocking sorter (25) is dried to increase the collection efficiency of the grains, and the dust is dried to facilitate the scattering and discharging by the sorting wind. This prevents dust accumulation.
[0018]
As described above, in the combine in which the engine (21) is disposed near the driver's seat (20) on which an operator sits, the combiner is adjacent to the engine room (81) that is a closed space in which the engine (21) is installed. The radiator (84) is disposed, the engine (21) and the radiator (84) are shielded by the housing (80), the engine (21) installation place is closed, and noise reduction is easily performed. In addition, the cooling efficiency of the radiator (84) can be easily improved by separating the radiator (84) from the engine (21). Further, a part of the cooling air of the radiator (84) is introduced into the engine room (81) which is a closed space in which the engine (21) is installed, and the outside air intake (91) (92) which is a threshing selection air supply unit. The engine (21) is cooled using the cooling air of the radiator (84), and warm air can be supplied to the threshing and sorting air supply units (91) and (92). In addition, the engine (21) is cooled and the exhaust heat of the engine (21) is utilized, and a variable speed input shaft (71), which is a constant rotation shaft other than the engine (21), is connected to an air cooling fan (78) that cools the radiator (84). The air cooling fan (78) does not need to be connected to the output shaft of the engine (21), and the air cooling fan (78) and the engine (21) can be installed without being mutually limited. .
[0019]
【The invention's effect】
As apparent from the above embodiments, the present invention includes an engine (21), a threshing section (4) provided with a feed chain (5), a handling cylinder (6), and a sorting mechanism (25), a cutting section (8), A threshing portion is provided on the drive transmission shaft (49) of the engine (21) via a threshing clutch (56) which is provided with a traveling transmission case (69) provided with a continuously variable transmission (70) and is turned on by a hydraulic cylinder (55). The output shaft (43) for driving (4) is connected, the output side of the drive transmission shaft (49) and the continuously variable transmission (70) are connected to the cutting part (8), and the traveling transmission case (69) In the combine which drives the cutting part (8) by the vehicle speed tuning output and the output shaft (43) output to the threshing part (4), the power of the engine (21) is transmitted to the counter case (41), and the threshing output shaft (43 ), Sorting output shaft (44), cutting output shaft Provided 45) in the counter case (41), ligated into the sorted output shaft through the engine (21) of the drive transmission shaft (49) of the threshing clutch (56) (44), the threshing output to sorting the output shaft (44) The shaft (43) is connected and the handling cylinder (6) and the processing cylinder (7) are driven via the threshing pulley (47) provided on the threshing output shaft (43), and the cutting low speed gear (53) and the cutting high speed are driven. A reaping low speed clutch (60) and a reaping high speed clutch which are connected to a sorting output shaft (44) supported by an engagement shaft of a gear (54) and are turned on by a hydraulic cylinder (58) (59). (61) is provided, and the gears (53) (54) of the sorting output shaft (44) are connected to the cutting output shaft (45) via the clutches (60) (61), while the traveling transmission case (69) The vehicle speed tuning output shaft (73) is installed in The vehicle speed synchronization output shaft (73) is rotated in proportion to the forward travel speed of the travel crawler (2), and the travel speed is adjusted by the low speed or high speed constant speed by the cutting output shaft (45) or the vehicle speed synchronization output shaft (73). The mowing unit (8) and the feed chain (5) are driven at a proportional speed, and the transmission efficiency can be improved or the change in the transmission power can be easily reduced.
[Brief description of the drawings]
FIG. 1 is an overall side view of a combine.
FIG. 2 is a plan view of the same.
FIG. 3 is a side view of a threshing unit.
FIG. 4 is a drive explanatory diagram of a combine.
FIG. 5 is an enlarged view of the same.
FIG. 6 is an explanatory diagram of a counter case.
FIG. 7 is a side view of an engine unit.
FIG. 8 is a plan view of the same.
FIG. 9 is a front view of the same.
[Explanation of symbols]
(4) Threshing part (6) Handle (8) Cutting part (21) Engine (25) Swing sorter (sorting mechanism)
(44) Sorting output shaft (drive shaft)
(49) Input shaft (drive transmission shaft)
(50) Working hydraulic pump (56) Threshing clutch (69) Traveling transmission case (70) Continuously variable transmission

Claims

Driving shift provided with engine (21), threshing part (4) provided with feed chain (5), handling cylinder (6) and sorting mechanism (25), mowing part (8), and continuously variable transmission (70) An output shaft (43) that includes a case (69) and drives the threshing portion (4) to the drive transmission shaft (49) of the engine (21) via the threshing clutch (56) that is turned on by the hydraulic cylinder (55). The drive transmission shaft (49) and the output side of the continuously variable transmission (70) are connected to the cutting part (8), and the vehicle speed tuning output of the traveling transmission case (69) and the output to the threshing part (4) are connected. In the combine that drives the cutting unit (8) by the output of the shaft (43), the power of the engine (21) is transmitted to the counter case (41), and the threshing output shaft (43), the sorting output shaft (44), the cutting output shaft (45) is provided in the counter case (41) Engine (21) of the drive transmission shaft (49) sorting the output shaft through a threshing clutch (56) was coupled to (44), the threshing output shaft (43) is connected to the selection output shaft (44), the threshing output The handling cylinder (6) and the processing cylinder (7) are driven via the threshing pulley (47) provided on the shaft (43), and the cutting low speed gear (53) and the cutting high speed gear (54) are supported by the engagement shaft. The sorting output shaft (44) is connected to the threshing output shaft (43), and is provided with a cutting low speed clutch (60) and a cutting high speed clutch (61) that are turned on by the hydraulic cylinders (58) and (59). ) Are connected to the reaping output shaft (45) via the clutches (60) (61), while the traveling speed change case (69) is provided with a vehicle speed tuning output shaft (73), To the forward traveling speed of the traveling crawler (2) For example, the vehicle speed tuning output shaft (73) is rotated, and the cutting unit (8) and the feed are fed at a low speed or high speed constant speed by the cutting output shaft (45) or at a speed proportional to the traveling speed by the vehicle speed tuning output shaft (73). A combine characterized by driving the chain (5).