JP3939125B2

JP3939125B2 - Conveyor for roll baler

Info

Publication number: JP3939125B2
Application number: JP2001325931A
Authority: JP
Inventors: 勉植田; 公憲橋本
Original assignee: 株式会社タカキタ
Priority date: 2001-10-24
Filing date: 2001-10-24
Publication date: 2007-07-04
Anticipated expiration: 2021-10-24
Also published as: JP2003125643A

Description

【０００１】
【発明が属する技術分野】
本発明は、機体の前面側に設けたピックアップ装置によりピックアップした牧草等の収穫物を、ピックアップ装置と機体の後部側に設けた圧縮室との間に設ける搬送装置により圧縮室に送り込んでロールベールに成形するロールベーラにおいて、ピックアップ装置と圧縮室との間に設けられる搬送装置についての改良に関する。
【０００２】
【従来の技術】
ロールベーラにおいて、それの機体の前面側に設けたピックアップ装置によりピックアップした牧草・稲藁等の収穫物を、機体に装架してある圧縮室内に送り込み、その圧縮室内においてロールベールに圧縮・成形させるために、ピックアップ装置と圧縮室の入口部との間に設ける搬送装置には、特開平９−２７５７５５号公報により開示されている手段がある。
【０００３】
この搬送手段は、図１に示しているように、機体ａの前面側に設けるピックアップ装置１の後端側と機体ａに装架してある圧縮室２の入口部２０との間に、ピックアップ装置１の後端部から圧縮室２の入口部２０との間に渡るように配設する搬送通路底板３０と、それの上方に配位して機体ａに軸支する搬送ロータ３１と、その搬送ロータ３１の周面の下面側と前記搬送通路底板３０の上面側との間に形成される搬送通路ｗに向けて搬送通路底板３０の下面側から突出するように設ける切断ナイフ３２と、搬送ロータ３１の周面に放射方向に突出するように設ける複数の搬送ブレード３３と、搬送ロータ３１の上方に配位して機体ａに固定支架して下縁を搬送ロータ３１の周面に臨ませるスクレーパ３４等よりなる搬送装置３を装設し、それの搬送ロータ３１を図において矢印に示しているように時計回りに回動するように駆動することで、ピックアップ装置１により掻き上げてきた収穫物を、回転する搬送ロータ３１の周面と搬送通路底板３０の上面とで圧縮しながら搬送ブレード３３…で圧縮室２の入口部２０に向けて送り出していくようにするが、このとき、搬送通路底板３０は、それの前端側であるピックアップ装置１に隣接する側を、上下方向に移動可能とし、かつ、上端側を機体ａに係止した引張バネ４０の下端側に吊り下げ支持せしめておいて、搬送通路ｗに大量の収穫物が送り込まれて抵抗が増大してきたときには搬送通路底板３０の前端側が自動的に下方に動いて搬送通路ｗを広げ、それにより大量の収穫物が通過して抵抗が減少すると引張バネ４０により自動的に復帰するようにしている手段である。
【０００４】
即ち、搬送通路底板３０は、ピックアップ装置１と隣接する前端側の端部を、それの左右の両側に設けた一対のピン４１・４１と、それらピン４１に下端側が連繋して上端側が機体に設けた係止ピン４２に連繋する引張バネ４０と、前述の搬送通路底板３０の両側に設けた一対のピン４１に対し上下方向に移動可能に係合する垂直方向の長穴を具備して機体ａに固定支持せしめる長穴ガイドとにより、引張バネ４０のバネ負荷に抗して自在に昇降するよう吊り下げ支持せしめておく。
【０００５】
そして、この搬送通路底板３０のピックアップ装置１側となる前端側の端部には、前述の一対のピン４１を越して、ピックアップ装置１側に突出する鼻部３００を設け、その鼻部３００の上方および下方には、その鼻部３００が搬送通路底板３０の前端側の端部の上下の動きにより上下に動いたときに、所定位置においてその鼻部３００に当接して、それの動きを規制するストッパ４３・４４を設けて、これにより、搬送通路底板３０の前端側の端部の上下方向の移動範囲を規制し、さらに、鼻部３００が下方のストッパ４４に当接するまで下降してきた状態時に、作動領域に入るセンサ４５を配設しておいて、これを検出させるようにする。
【０００６】
また、搬送通路底板３０のピックアップ装置１と反対側となる後端側の端部には、それの両側に一対のアクチュエータ５の各下端側を連結し、そのアクチュエータ５の各上端側を圧縮室２の機壁に連結して、そのアクチュエータ５を作動させることで、搬送通路底板３０が、前述のピン４１を回動軸としてそのピン４１中心に下方に回動させて、後部側を圧縮室２内に対し開放させるようにする。
【０００７】
これにより、搬送通路ｗに送り込まれた収穫物の量が多いことで抵抗が大きくなると、搬送通路底板３０の前端部側が自動的に下方に動いて搬送通路ｗを広げ、その下方の動きが限界範囲となったときに、センサ４５の検出作動によりロールベーラを牽引するトラクタの運転者に知らせる信号を発し、運転者がアクチュエータ５を作動させて搬送通路底板３０を開放回動させるようにしているものである。
【０００８】
【発明が解決しようとする課題】
上述のロールベーラにおける搬送手段は、搬送通路底板３０のピックアップ装置１側が、引張バネ４０により吊り下げ支持されて、上下可動となっていることから、その搬送通路底板３０のピックアップ装置１側が下方に動くと、搬送通路ｗの搬送ロータ３１と搬送通路底板３０との間隔が広くなって、ピックアップ装置１側から搬送通路ｗに送給される収穫物の量が少し多い場合に通り易くするが、搬送ロータ３１・ピックアップ装置１等を駆動する駆動系にトルクリミッタを設けると、大量の収穫物が供給された場合には、搬送通路ｗの間隔が広くなった分だけ多くの収穫物が詰まった後に、駆動系に設けるトルクリミッタが作動することになって、アクチュエータ５の作動により搬送通路底板３０の後部側を下方に開いて収穫物の圧縮状態を解除し収穫物を圧縮室２へ送り込む作動が困難になる問題が出てくる。
【０００９】
このため、このときの収穫物の圧縮状態の解除には、搬送通路底板３０の圧縮室２側を下方に開放回動させる際に、搬送通路ｗに設けられる切断ナイフ３２まで、下方に逃がす必要を生ぜしめる場合があり、通常は要しない作業操作まで行わなければならない問題がある。
【００１０】
また、搬送通路底板３０の前部側であるピックアップ装置１側が下方に動くと、搬送ロータ３１と搬送通路底板３０の前部との間隔が広くなり、その結果、搬送通路ｗを前方から、後方に流れる収穫物の通路断面積が後方において小さくなることで、搬送する収穫物を圧縮することになって、通常作業状態における駆動動力を増加させるようになる問題がある。
【００１１】
本発明は、従前手段に生じている上述の問題を解消せしめるためになされたものであって、通常の収穫物の量では、搬送通路に詰まりを生ぜしめることなく継続的な運転が得られるようになり、異常な量の収穫物が供給されて詰まりが生じた場合には、収穫物の圧縮が解除され易い状態でトルクリミッタが作動し、その後の通常状態への復帰が、切断ナイフまで逃がす操作作業を要することなく容易に行えるようにする新たな搬送手段を提供することを目的とする。
【００１２】
【課題を解決するための手段】
そして、本発明においては、上述の目的を達成するための手段として、請求項１に記載した、機体ａの前面側の下部に装架したピックアップ装置１の後端側と機体ａに装架した圧縮室２の入口部２０との間に渡るよう設ける搬送通路底板３０と、それの上面側に対向させて機体ａに軸支する搬送ロータ３１と、その搬送ロータ３１の周面の下面側と前記搬送通路底板３０の上面側との間に形成される搬送通路ｗ内に配設する切断ナイフ３２と、からなり、搬送ロータ３１の駆動により、ピックアップ装置１で拾い上げた収穫物を圧縮室２に送り込むロールベーラの搬送装置３において、搬送通路底板３０は、それの上面と搬送ロータ３１の下周面との間に形成される搬送通路ｗが、通常の量の収穫物の移送時に詰まりを生ぜしめない間隔となるように設定配設して、その搬送通路底板３０の前端側を、機体ａに、連結軸により後端側がその連結軸中心に昇降回動するよう連結支架せしめ、その搬送通路底板３０の後端側を、人為操作により作動し、かつ、上端側が機体ａに支架されて下端側の作動ロッド５０が昇降作動するアクチュエータ５の前記作動ロッド５０の下端部に、そのアクチュエータ５の人為操作による作動により前記連結軸中心に昇降回動するよう連結し、この搬送通路底板３０に前記切断ナイフ３２をその搬送通路底板３０と一緒に昇降回動するよう組み付け支持せしめ、前記搬送ロータ３１の駆動系にはトルクリミッタｈを組み込んで構成したことを特徴とするロールベーラにおける搬送装置を提起するものである。
【００１３】
【発明の実施の形態】
次に、本発明手段の実施の形態を図面に従い説明する。
図２は、本発明による搬送手段を実施せるロールベーラＡの全体の一部破断した側面図である。ロールベーラＡは、この例においては、それの機体ａの前面側に設けた連結桿ｂを、図において後半側だけを示しているトラクタＴの機体の後面側に設けた牽引ヒッチｃに連結して、トラクタＴの走行により牽引させて走行するようにした被牽引型に構成してあるが、機体ａにエンジンを搭載して、それの動力により自走して走行する自走型に構成するなど、それの形態は問わないものである。
【００１４】
図において、１はロールベーラＡの機体ａの前面側の下部に配位して機体ａに装架したピックアップ装置、３はピックアップ装置１で拾い上げた収穫物を後送する搬送装置、２はその搬送装置３で後送する収穫物を入口部２０から受け入れてロールベールに成形するよう機体ａの後部側に装架した圧縮室である。
【００１５】
ピックアップ装置１は、回転軸１０中心に回転するピックアップドラム１１と、それの周面から突出する歯杆１２…が嵌入するスリットを設けて弧状に彎曲する帯板状に設けた周壁１３とで構成される通常のもので、それのピックアップドラム１１は、左右に一対に対向させた側板状のフレームｆ間に渡架軸支され、そのフレームｆが機体ａに設けた回動アーム１４の下端に、長穴を介して連繋してその回動アーム１４の回動により昇降する吊杆１５に吊り下げ支持されていて、その吊杆１５の昇降作動により図４・図５・図６・図７に示しているようにフレームｆが揺動支点ｆ’中心に回動することで、対地高さの調節が行われるようにしてある。
【００１６】
そして、このピックアップ装置１は、それの作用巾（ピックアップ巾）が、搬送装置３の作用巾よりも広く設定してあり、そのため、このピックアップ装置１の後端側の上方には、ピックアップ巾の左右の両側部位に、拾い上げてきた収穫物をピックアップ巾の中央部位に向けて送り出すスクリューオーガーｇが、前述の左右のフレームｆからそれぞれ突出するように設けてある（図１０）。
【００１７】
搬送装置３は、図８にあるように、ピックアップ装置１のピックアップドラム１１を囲う周壁１３の後端部と圧縮室２の入口部２０との間に渡架するように設ける棚板状の搬送通路底板３０と、それの上面側に対向させて機体ａに軸支する搬送ロータ３１と、それの周面に設けた搬送ブレード３３…と、搬送通路底板３０の下面側から、前記搬送ロータ３１の下周面と前述搬送通路底板３０との上面との間に形成される搬送通路ｗ内に突出するように設ける切断ナイフ３２とで、ピックアップ装置１により拾い上げてきた収穫物を、搬送ロータ３１の回転作動により搬送通路底板３０の上面に沿い圧縮室２に向け掻き送るように構成することについては、従前手段のものと同様に構成してよいが、搬送通路ｗの底板となる搬送通路底板３０は、それのピックアップ装置１側の端部を、図１０にあるように、機体ａと別に形成して、機体ａの左右の内壁面に一体に連結させて設ける取付鈑ｊに、連結軸Ｐ１により連結して機体ａに対し固定支持させておく。
【００１８】
この連結軸Ｐ１による機体ａに対する連結支持は、ピックアップ装置１のピックアップドラム１１を囲う彎曲した周壁１３の上面側の後端部から、圧縮室２の入口部２０の下唇部となる位置に軸支せる移送ロール２１の前面との間に渡るよう配設する前記搬送通路底板３０の下面側に、補強リブ状に下方に向け垂下する支持鈑３５を一体に連結させて取り付けて、この支持鈑３５の前端部を、連結軸Ｐ１を介し、前述の機体ａに一体に設ける取付鈑ｊに軸支することで行ってよく、このようにすることが、搬送通路底板３０の搬送面に与える影響を少なくすることからむしろ望ましい。
【００１９】
そして、この搬送通路底板３０は、それの後端側となる圧縮室２の入口部２０側の端部を、上端側が機体ａに一体に設けた取付鈑ｊに連結支持されたアクチュエータ５の伸縮作動する作動ロッド５０の突出端部に連結して、そのアクチュエータ５の伸縮作動により搬送通路底板３０の後端側が、前述の前端側に設けた連結軸Ｐ１中心に上下方向に回動して、搬送通路ｗの後端側の開放が行われるようにする。
【００２０】
この搬送通路底板３０の後端側とアクチュエータ５との連結も、前述の搬送通路底板３０の下面側に一体的に連続させた補強リブ状の支持鈑３５の後端部に、左右方向に沿う連結軸Ｐ２を左右に貫通するように装着して、それの左右の軸端部に、圧縮室２の入口部２０の左右の両側部位にそれぞれ配位して上端側を機体ａに一体に設けた取付鈑ｊに連結支持せしめたアクチュエータ５の伸縮する作動ロッド５０の下方に突出する突出端部を、それぞれ連結することで行っている。
【００２１】
また、搬送通路底板３０の下面側から刃部３２ａが搬送通路ｗに向けて突出するように装設する切断ナイフ３２は、それの刃身部３２ｂを係止ピン３２０と係合カム３２１とにより、前述の搬送通路底板３０の下面側に補強板状に設ける支持鈑３５に組み付け支持せしめてあって、アクチュエータ５の作動で搬送通路底板３０を連結軸Ｐ１中心に回動させたときに、搬送通路底板３０と一緒に昇降するようにしてある。
【００２２】
搬送通路底板３０とアクチュエータ５との連繋は、図８にあるように、アクチュエータ５の作動ロッド５０が引き込まれて、搬送通路底板３０の後端側が最も上昇位置にある状態においては、その搬送通路底板３０に組み付けておく切断ナイフ３２の刃部３２ａが、搬送通路底板３０の上面と搬送ロータ３１の下周面との間に形成される搬送通路ｗの途中を閉ざす位置を占め、作動ロッド５０が押し出されて搬送通路底板３０の後端側が最も下降した状態位置にある状態においては、図９にあるように、搬送通路底板３０と共に下降する切断ナイフ３２が、搬送通路ｗから下方に退避してその切断ナイフ３２の刃部３２ａの刃縁と搬送ロータ３１の下周面との間に搬送通路ｗを形成する位置を占める状態となるように設定してある。
【００２３】
また、搬送通路底板３０の下面側に設ける補強リブ状の支持鈑３５は、それの後端側３５０が図８にあるように、アクチュエータ５の作動により搬送通路底板３０を上限位置に上昇させたときに、移送ロール２１の下周面側を下方から囲い込むようになる形状に形成してある。
【００２４】
アクチュエータ５は、この実施例においては、トラクタＴの運転席に装備せるコントロールボックスの操作により電磁切替弁を作動させて油圧回路を切り替えることによって伸縮作動する油圧シリンダであり、オペレータにより人為的に操作するものである。
【００２５】
そしてこれにより、搬送通路ｗに生じた詰まりを対処すべくアクチュエータ５を作動させて、搬送通路底板３０の後端側を下降回動させたときに、搬送通路底板３０に組み付けた切断ナイフ３２が後方下方に傾斜しながら一緒に下降することで、この切断ナイフ３２の刃部３２ａが搬送通路ｗから下方に退避して搬送通路ｗを開放するとともに、その刃部３２ａの上縁が開放した搬送通路ｗの底面を形成するようにしてある。
【００２６】
搬送装置３の搬送ロータ３１およびピックアップ装置１に回転動力を伝導する伝導機構は図２および図３に示している。
【００２７】
同図２および図３において、ｄは入力軸となるドライブシャフトである。この例におけるロールベーラＡは、トラクタＴに牽引連結して走行させる被牽引型に作られていることから、そのドライブシャフトｄは、トラクタＴの機体後面に設けた動力取出軸ＰＴＯと、ロールベーラＡの機体ａの前端側に設けたミッション部ｅとの間に渡架するように設けたユニバーサルジョイント軸になっている。
【００２８】
そして、このドライブシャフトｄによりトラクタＴ側から導かれる回転動力は、ドライブシャフトｄとミッション部ｅとの間に組み込んだトルクリミッタｈを経てミッション部ｅに入力され、そこから、そのミッション部ｅに設けた伝導輪６０および駆動チエン６１を経て中間伝導輪６２に伝導され、その中間伝導輪６２から搬送ロータ３１の回転軸３１０に設けた伝導輪６３に伝導チエン６４を介し伝導し、これにより搬送ロータ３１を駆動し、また、この搬送ロータ３１の回転軸３１０から、オーガーｇの回転軸およびピックアップ装置１の回転軸１０に、ピックアップ装置１のフレームｆに設けておく伝導機構（図示省略）を介して伝導し、スクリューオーガーｇおよびピックアップ装置１を駆動するようにしている。
【００２９】
また、前述のミッション部ｅには、それの機体ａの左右の反対側に、図３にあるように前述の伝導輪６０と対称するように伝導輪７０が軸支され、それから、駆動チエン７１を介して、圧縮室２の入口部２０の上唇部となる位置に軸支した圧縮ドラム８０、および圧縮室２の周壁を形成するように張架したタイトチエン８１の駆動輪８２とに回転動力を伝導するようにしてあり、さらに、伝導機構（図示省略）を介して移送ロール２１に伝導するようにしてある。
【００３０】
このように構成した本発明によるロールベーラにおける搬送手段は、ピックアップ装置１の後端側と圧縮室２の入口部２０との間に渡架するように装設する搬送通路底板３０が、それの上面と、それの上面側に対向させて軸支する搬送ロータ３１の下周面との間に形成される搬送通路ｗを、それの断面積が通常の量の収穫物を搬送するときに詰まりを生ぜしめない広さに設定して、前端側を連結軸Ｐ１により機体ａに固定連結し、後端側を人為的に操作することで下降作動するアクチュエータ５に連結軸Ｐ２により連結しているのだから、ピックアップ装置１により拾い上げてくる収穫物が通常の量のときには、詰まりを生ぜしめることなく収穫物を継続して圧縮室２に送り込めるようになる。
【００３１】
また、許容量を越える量の収穫物が搬送通路ｗに、拾い上げられてきたときは、それにより生ずる詰まりにより、動力伝達部に設けておくトルクリミッタｈが作動して一時的に回動動力を停止させ、過負荷動力の伝達による機械装置の破損を防止すると共に、トルクリミッタｈの作動に生ずる滑り、または断続音、または、トルクリミッタｈに組み込んでおくセンサにより作動制御されるブザー等の警報器などからオペレータにこの状態を知らせるようになる。このとき、オペレータは、アクチュエータ５を作動させて搬送通路底板３０の後端側を下降させればよい。
【００３２】
搬送通路ｗに生じる詰まりは、搬送通路底板３０の前端側が連結軸Ｐ１により機体ａに固定支持され、後端側が連結軸Ｐ２を介しアクチュエータ５に支持されて、機体ａに固定された状態となっている搬送通路底板３０の上面と搬送ロータ３１の下周面との間の搬送通路ｗに生じる詰まりであるから、アクチュエータ５により後端側の下降作動に支障を与えることがなく、アクチュエータ５による搬送通路底板３０の後端側の下降作動は楽に行われる。
【００３３】
また、このときの搬送通路底板３０の後端側のアクチュエータ５による下降回動は、機体ａに該搬送通路底板３０の前端側を固定支架した連結軸Ｐ１中心に行われ、この搬送通路底板３０に組み付けた切断ナイフ３２を一緒に後方下方に向け傾斜回動させて、搬送通路ｗから下方に退避させながら刃部３２ａの刃縁が開放した搬送通路ｗの底面を形成するようになって、搬送ロータ３１の駆動の負荷を軽減する状態となることから、トルクリミッタｈを介して駆動回転する搬送ロータ３１の回転の復活により、詰まった収穫物が、開放した搬送通路ｗ内を、回転する搬送ロータ３１の搬送ブレード３３により移送ロール２１に向け掻き送られていき、この移送ロール２１により圧縮室２内に送り込まれるので、詰まりの解消が簡単に行えるようになる。
【００３４】
しかも、搬送通路底板３０の下面側から搬送通路ｗに突出するように設ける切断ナイフ３２が、搬送通路底板３０の下面側に一体の補強リブ状に設ける支持鈑３５に刃身部３２ｂを組み付けていることから、搬送通路底板３０の後端側を下降させたときに、この切断ナイフ３２も一緒に搬送通路ｗを開く側に自動的に移動するので、切断ナイフ３２を動かす操作も要さずに、収穫物の詰まりを解消するのが楽に行えるようになる。
【００３５】
【発明の効果】
以上説明したように、本発明によるロールベーラにおける搬送装置は、切断ナイフ３２を組み付け支持せしめた搬送通路底板３０の前端側を連結軸Ｐ１により機体ａに固定支持しておいて、後端側を、人為操作により作動するアクチュエータ５に連結支持して、そのアクチュエータ５の作動により下降させて搬送通路ｗを後方に開放するようにしているのだから、ピックアップ装置１により搬送通路ｗに掻き上げられてくる収穫物の量が通常の量であるときは、詰まりを生ぜしめることなく継続して圧縮室２内に送り込んでいけ、収穫物の量が許容量を越えて大量に掻き上げられて詰まりが生じたときは、それにより搬送ロータ３１の駆動系に設けたトルクリミッタｈが作動したところで、アクチュエータ５を作動させて搬送通路底板３０の後端側を下降させれば、詰まった収穫物が、抵抗の軽減により回転力が復活してくる搬送ロータ３１の作動で圧縮室２内に送り込まれて、詰まりを解消せしめるようになり、詰まりが解消したところで、アクチュエータ５の作動により搬送通路底板３０を上昇位置に復元させればよいので、作業中に生ずる収穫物の詰まりに対する処理が簡単に行えようになる。
【図面の簡単な説明】
【図１】従前のロールベーラにおける搬送装置の側面配置図である。
【図２】本発明手段による搬送装置を実施せるロールベーラの連結したトラクタの一部を省略した側断面図である。
【図３】同上ロールベーラの反対側の側面視における側断面図である。
【図４】同上ロールベーラのピックアップ装置を下降させた状態の側面図である。
【図５】同上ロールベーラのピックアップ装置を上昇させた状態の側面図である。
【図６】同上ロールベーラの搬送装置の縦断側面図である。
【図７】同上ロールベーラの搬送装置のピックアップ装置のフレームを吊り上げた状態時の縦断側面図である。
【図８】同上ロールベーラの搬送装置の搬送通路底板の後端側を上昇させた状態時の縦断側面図である。
【図９】同上ロールベーラの搬送装置の搬送通路底板の後端側を下降させた状態時の縦断側面図である。
【図１０】同上ロールベーラの搬送装置の一部破断した平面図である。
【図１１】同上ロールベーラの搬送装置の図１０におけるＡ−Ａ線断面図である。
【図１２】同上ロールベーラの搬送装置の図１０におけるＢ−Ｂ線断面図である。
【図１３】同上ロールベーラの搬送装置の図１０におけるＣ方向視の側面図である。
【図１４】同上ロールベーラの搬送装置のカバーを装着した状態の、図１０におけるＣ方向視の側面図である。
【符号の説明】
Ａ…ロールベーラ、Ｔ…トラクタ、Ｐ１・Ｐ２…連結軸、ＰＴＯ…動力取出軸、ａ…機体、ｂ…連結桿、ｃ…牽引ヒッチ、ｄ…ドライブシャフト、ｅ…ミッション部、ｆ…フレーム、ｆ’…揺動支点、ｇ…スクリューオーガー、ｈ…トルクリミッタ、ｊ…取付鈑、ｗ…搬送通路、ｙ…開放口、１…ピックアップ装置、１０…回転軸、１１…ピックアップドラム、１２…歯杆、１３…周壁、１４…回動アーム、１５…吊杆、２…圧縮室、２０…入口部、２１…移送ロール、３…搬送装置、３０…搬送通路底板、３００…鼻部、３１…搬送ロータ、３１０…回転軸、３２…切断ナイフ、３２ａ…刃部、３２ｂ…刃身部、３２０…係止ピン、３２１…係合カム、３３…搬送ブレード、３４…スクレーパ、３５…支持鈑、３５０…後端側、４０…引張バネ、４１…ピン、４２…係止ピン、４３・４４…ストッパ、４５…センサ、５…アクチュエータ、５０…作動ロッド、６０…伝導輪、６１…駆動チエン、６２…中間伝導輪、６３…伝導輪、６４…伝導チエン、７０…伝導輪、７１…駆動チエン、８０…圧縮ドラム、８１…タイトチエン、８２…駆動輪、８３…受動輪。[0001]
[Technical field to which the invention belongs]
The present invention provides a roll bale by feeding a harvested material such as grass picked up by a pickup device provided on the front side of the machine body into a compression chamber by a conveying device provided between the pickup device and a compression chamber provided on the rear side of the machine body. The present invention relates to an improvement in a transport device provided between a pickup device and a compression chamber in a roll baler that is formed into a compact.
[0002]
[Prior art]
In the roll baler, the harvested material such as grass and rice straw picked up by the pick-up device provided on the front side of the machine is sent into the compression chamber mounted on the machine, and the roll bale is compressed and molded in the compression chamber. For this purpose, a transport device provided between the pickup device and the inlet of the compression chamber includes means disclosed in Japanese Patent Laid-Open No. 9-275755.
[0003]
As shown in FIG. 1, the conveying means includes a pickup between a rear end side of the pickup device 1 provided on the front side of the body a and an inlet portion 20 of the compression chamber 2 mounted on the body a. A transport passage bottom plate 30 disposed between the rear end portion of the apparatus 1 and the inlet portion 20 of the compression chamber 2, a transport rotor 31 that is disposed above and is pivotally supported on the machine body a, A cutting knife 32 provided so as to protrude from the lower surface side of the conveyance path bottom plate 30 toward the conveyance path w formed between the lower surface side of the peripheral surface of the conveyance rotor 31 and the upper surface side of the conveyance path bottom plate 30; A plurality of conveyance blades 33 provided on the circumferential surface of the rotor 31 so as to protrude in the radial direction, and are positioned above the conveyance rotor 31 and fixedly supported on the machine body a so that the lower edge faces the circumferential surface of the conveyance rotor 31. A conveying device 3 comprising a scraper 34 and the like is installed, By driving the transport rotor 31 so as to rotate clockwise as indicated by an arrow in the figure, the harvested material picked up by the pickup device 1 can be removed from the peripheral surface of the rotating transport rotor 31 and the transport passage bottom plate. While being compressed with the upper surface of 30, the conveying blade 33... Is sent out toward the inlet portion 20 of the compression chamber 2. At this time, the conveying passage bottom plate 30 is attached to the pickup device 1 on the front end side thereof. Adjacent sides are movable in the vertical direction, and the upper end side is suspended and supported by the lower end side of the tension spring 40 locked to the machine body a, and a large amount of harvest is fed into the conveyance path w. When the resistance increases, the front end side of the conveyance path bottom plate 30 automatically moves downward to widen the conveyance path w, and when a large amount of harvest passes and the resistance decreases, the tension spring 40 automatically Is a means you have to return to.
[0004]
That is, the conveyance path bottom plate 30 has a front end side adjacent to the pickup device 1 as a pair of pins 41 and 41 provided on both the left and right sides thereof, and the lower end side of the pins 41 is connected to the upper end side of the body. The fuselage is provided with a tension spring 40 linked to the provided locking pin 42 and a vertical elongated hole that is movably engaged with the pair of pins 41 provided on both sides of the conveyance passage bottom plate 30 so as to be movable in the vertical direction. A long hole guide fixedly supported by a is suspended and supported so as to freely move up and down against the spring load of the tension spring 40.
[0005]
A nose portion 300 that protrudes toward the pickup device 1 is provided at the front end of the transport passage bottom plate 30 on the pickup device 1 side, and protrudes toward the pickup device 1 side. Above and below, when the nose portion 300 moves up and down due to up and down movement of the end portion on the front end side of the conveyance path bottom plate 30, the nose portion 300 comes into contact with the nose portion 300 at a predetermined position and restricts its movement Stoppers 43 and 44 are provided, thereby restricting the vertical movement range of the front end portion of the conveyance path bottom plate 30 and further moving down until the nose portion 300 comes into contact with the lower stopper 44. Occasionally, a sensor 45 entering the operating area is provided to detect this.
[0006]
Further, the lower end side of the pair of actuators 5 is connected to both ends of the end portion of the conveyance path bottom plate 30 on the opposite side to the pickup device 1, and the upper end sides of the actuators 5 are connected to the compression chambers. When the actuator 5 is operated by being connected to the machine wall 2, the transport passage bottom plate 30 is rotated downward about the pin 41 with the pin 41 as a rotation axis, and the rear side is compressed. 2. Open to the inside.
[0007]
As a result, when the resistance increases due to a large amount of the harvested product fed into the conveyance path w, the front end side of the conveyance path bottom plate 30 automatically moves downward to widen the conveyance path w, and the downward movement is limited. When the range is reached, a signal informing the driver of the tractor that pulls the roll baler is detected by the detection operation of the sensor 45, and the driver operates the actuator 5 to open and rotate the conveyance path bottom plate 30. It is.
[0008]
[Problems to be solved by the invention]
The transport means in the above-described roll baler is such that the pickup device 1 side of the transport passage bottom plate 30 is suspended and supported by a tension spring 40 and is movable up and down, so that the pickup device 1 side of the transport passage bottom plate 30 moves downward. And the gap between the conveyance rotor 31 and the conveyance path bottom plate 30 in the conveyance path w is widened, so that it is easy to pass when the amount of the harvest fed from the pickup device 1 side to the conveyance path w is slightly large. When a torque limiter is provided in the drive system for driving the rotor 31 and the pickup device 1 and the like, when a large amount of harvest is supplied, after a large amount of the crop is clogged by the wide interval of the conveyance path w. The torque limiter provided in the drive system is operated, and the actuator 5 is operated to open the rear side of the conveyance path bottom plate 30 downward to compress the crop. Actuation to release the state feeds the crop into the compression chamber 2 comes out is a problem that becomes difficult.
[0009]
For this reason, in order to release the compressed state of the harvested product at this time, when the compression chamber 2 side of the conveyance path bottom plate 30 is opened and rotated downward, it is necessary to release the cutting knife 32 provided in the conveyance path w downward. There is a problem that it is necessary to carry out work operations that are not usually required.
[0010]
Further, when the pickup device 1 side, which is the front side of the transport path bottom plate 30, moves downward, the distance between the transport rotor 31 and the front portion of the transport path bottom plate 30 increases, and as a result, the transport path w is moved from the front to the rear. Since the passage cross-sectional area of the harvested product flowing in the rear becomes smaller, there is a problem that the harvested product to be conveyed is compressed and the driving power in the normal working state is increased.
[0011]
The present invention has been made to solve the above-mentioned problems occurring in the conventional means, and it is possible to obtain a continuous operation without causing clogging in the conveyance path with a normal amount of harvest. When an abnormal amount of crop is supplied and clogging occurs, the torque limiter operates in a state where the compression of the crop is easy to be released, and then the return to the normal state is released to the cutting knife. It is an object of the present invention to provide a new conveying means that can be easily performed without requiring an operation work.
[0012]
[Means for Solving the Problems]
And in this invention, as a means for achieving the above-mentioned object, it was mounted on the rear end side of the pickup device 1 mounted on the lower part of the front side of the airframe a and on the airframe a. A conveyance passage bottom plate 30 provided between the compression chamber 2 and the inlet portion 20; a conveyance rotor 31 pivotally supported on the machine body a so as to face the upper surface side thereof; and a lower surface side of the peripheral surface of the conveyance rotor 31; A cutting knife 32 disposed in a transport path w formed between the transport path bottom plate 30 and the upper surface of the transport path bottom plate 30, and the harvested product picked up by the pickup device 1 by driving the transport rotor 31 is compressed in the compression chamber 2. In the transport device 3 of the roll baler fed into the transport path, the transport path bottom plate 30 is clogged by the transport path w formed between the upper surface thereof and the lower peripheral surface of the transport rotor 31 when a normal amount of harvest is transferred. It ’s a tight interval Set disposed to the front end side of the conveying path bottom plate 30, the body a, the rear end by the connecting shaft is ligated支架to lift pivots the connecting shaft center, the rear end of the conveying passage bottom plate 30 The actuator 5 is actuated by an artificial operation of the actuator 5 at the lower end of the actuator rod 50 which is actuated by human operation and the upper end of the actuator rod 50 is lifted up and down by the airframe a. connected to the lifting pivot in mind in the connecting shaft, the cutting knife 32 in the transportation path bottom plate 30 thereof assembled supporting allowed to lift rotates together with the conveying passage bottom plate 30, the drive system of the transfer rotor 31 it is intended to raise the conveying device in a roll baler being characterized in that constructed Nde write set torque limiter h.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Next, an embodiment of the means of the present invention will be described with reference to the drawings.
FIG. 2 is a partially cutaway side view of the entire roll baler A for carrying the conveying means according to the present invention. In this example, the roll baler A is connected to the traction hitch c provided on the rear surface side of the tractor T, which is shown only on the rear half side in the drawing, with the connecting rod b provided on the front side of the aircraft a. Although it is configured to be towed so as to be driven by the tractor T traveling, the engine is mounted on the airframe a and is configured to be self-propelled to travel by its power. The form of it does not ask | require.
[0014]
In the figure, 1 is a pick-up device that is positioned on the lower part of the front side of the body a of the roll baler A and mounted on the body a, 3 is a transporting device that feeds the harvest picked up by the pick-up device 1, and 2 is its transport It is a compression chamber mounted on the rear side of the machine body a so as to accept the harvested product to be fed later by the apparatus 3 from the inlet 20 and form it into a roll bale.
[0015]
The pickup device 1 includes a pickup drum 11 that rotates about the rotation shaft 10 and a peripheral wall 13 that is provided in the shape of a strip that is bent in an arc shape by providing a slit into which a toothed tooth 12 that protrudes from the peripheral surface thereof is fitted. The pick-up drum 11 is supported on a support shaft between a pair of side plate-like frames f opposed to the left and right, and the frame f is attached to the lower end of the rotating arm 14 provided in the machine body a. The suspension arm 15 is supported by being suspended through a long hole and is lifted and lowered by the rotation of the pivot arm 14, and the lifting and lowering operation of the suspension rod 15 is shown in FIGS. 4, 5, 6, and 7. The ground height is adjusted by rotating the frame f about the swing fulcrum f ′ as shown in FIG.
[0016]
And this pickup device 1 has its working width (pickup width) set wider than the working width of the transport device 3. Therefore, above the rear end side of this pickup device 1, Screw augers g for feeding the picked-up harvested toward the central part of the pickup width are provided on the left and right side parts so as to protrude from the left and right frames f, respectively (FIG. 10).
[0017]
As shown in FIG. 8, the transport device 3 is a shelf-shaped transport provided so as to be bridged between the rear end portion of the peripheral wall 13 surrounding the pickup drum 11 of the pickup device 1 and the inlet portion 20 of the compression chamber 2. From the passage bottom plate 30, the conveyance rotor 31 that is pivotally supported on the machine body a so as to face the upper surface side of the passage, the conveyance blades 33 provided on the peripheral surface thereof, and the conveyance rotor bottom 31 from the lower surface side of the conveyance passage bottom plate 30. The harvested product picked up by the pickup device 1 with the cutting knife 32 provided so as to protrude into the transport path w formed between the lower peripheral surface of the transport path and the upper surface of the transport path bottom plate 30 is transported by the transport rotor 31. Although it may be configured in the same manner as that of the conventional means, the conveyance path bottom plate serving as the bottom plate of the conveyance path w may be configured so as to be scraped toward the compression chamber 2 along the upper surface of the conveyance path bottom plate 30 by the rotation operation of 30 is As shown in FIG. 10, the end of the pickup device 1 is formed separately from the machine body a, and connected to a mounting rod j that is integrally connected to the left and right inner wall surfaces of the machine body a by a connection shaft P1. Then, it is fixedly supported to the body a.
[0018]
The connection support for the machine body a by the connection shaft P1 is performed at a position from the rear end portion on the upper surface side of the curved peripheral wall 13 surrounding the pickup drum 11 of the pickup device 1 to a position that becomes the lower lip portion of the inlet portion 20 of the compression chamber 2. A support rod 35 that is downwardly lowered in the form of a reinforcing rib is integrally connected to the lower surface side of the transport passage bottom plate 30 disposed between the front surface of the transfer roll 21 to be supported. The front end portion of 35 may be pivotally supported on the mounting rod j provided integrally with the aforementioned machine body a via the connecting shaft P1, and this will affect the transport surface of the transport path bottom plate 30. Rather, it is desirable.
[0019]
The transfer passage bottom plate 30 is extended and contracted by an actuator 5 that is connected and supported at the end portion on the inlet portion 20 side of the compression chamber 2 on the rear end side thereof by an attachment rod j that is integrally provided on the machine body a on the upper end side. Connected to the projecting end of the operating rod 50 to be operated, the rear end side of the conveyance path bottom plate 30 is rotated up and down around the connecting shaft P1 provided on the front end side by the expansion and contraction operation of the actuator 5, The rear end side of the conveyance path w is opened.
[0020]
The connection between the rear end side of the conveyance path bottom plate 30 and the actuator 5 is also along the left-right direction at the rear end portion of the reinforcing rib-shaped support rod 35 integrally connected to the lower surface side of the conveyance path bottom plate 30 described above. The connecting shaft P2 is mounted so as to penetrate to the left and right, and is positioned at the left and right shaft ends of the connecting shaft P2 at the left and right side portions of the inlet portion 20 of the compression chamber 2, and the upper end side is provided integrally with the body a. The projecting end portions projecting downward of the operating rod 50 extending and contracting of the actuator 5 coupled and supported by the mounting rod j are connected to each other.
[0021]
In addition, the cutting knife 32 installed so that the blade portion 32a protrudes from the lower surface side of the conveyance passage bottom plate 30 toward the conveyance passage w has its blade portion 32b formed by a locking pin 320 and an engagement cam 321. When the transport passage bottom plate 30 is pivoted about the connecting shaft P1 by the operation of the actuator 5, the transport rod bottom plate 30 is supported by being assembled and supported by a support rod 35 provided in a reinforcing plate shape on the lower surface side of the transport passage bottom plate 30 described above. It goes up and down together with the passage bottom plate 30.
[0022]
As shown in FIG. 8, the connection between the conveyance path bottom plate 30 and the actuator 5 is performed when the operating rod 50 of the actuator 5 is retracted and the rear end side of the conveyance path bottom plate 30 is at the highest position. The blade portion 32a of the cutting knife 32 assembled to the bottom plate 30 occupies a position that closes the middle of the conveyance path w formed between the upper surface of the conveyance path bottom plate 30 and the lower peripheral surface of the conveyance rotor 31, and the operating rod 50 In the state where the rear end side of the conveyance path bottom plate 30 is in the most lowered state, the cutting knife 32 that descends together with the conveyance path bottom plate 30 is retracted downward from the conveyance path w as shown in FIG. The cutting edge 32 is set so as to occupy a position where the conveyance path w is formed between the edge of the blade portion 32 a of the cutting knife 32 and the lower peripheral surface of the conveyance rotor 31.
[0023]
Further, the reinforcing rib-shaped support rod 35 provided on the lower surface side of the conveyance path bottom plate 30 raises the conveyance path bottom plate 30 to the upper limit position by the operation of the actuator 5 as shown in FIG. Sometimes, the lower peripheral surface side of the transfer roll 21 is formed in a shape to be enclosed from below.
[0024]
In this embodiment, the actuator 5 is a hydraulic cylinder that expands and contracts by operating an electromagnetic switching valve by switching a hydraulic circuit by operating a control box installed in the driver's seat of the tractor T, and is manually operated by an operator. To do.
[0025]
As a result, when the actuator 5 is operated to deal with the clogging generated in the transport path w and the rear end side of the transport path bottom plate 30 is rotated downward, the cutting knife 32 assembled to the transport path bottom plate 30 is removed. The blade 32a of the cutting knife 32 retreats downward from the conveying path w to open the conveying path w by being lowered while tilting backward and downward, and the upper edge of the blade 32a is opened. A bottom surface of the passage w is formed.
[0026]
A conduction mechanism that conducts rotational power to the conveyance rotor 31 and the pickup device 1 of the conveyance device 3 is shown in FIGS.
[0027]
2 and 3, d is a drive shaft serving as an input shaft. Since the roll baler A in this example is made to be towed to travel by being connected to the tractor T, its drive shaft d includes a power take-off shaft PTO provided on the rear surface of the tractor T and the roll baler A. It is a universal joint shaft provided so as to be bridged between the mission part e provided on the front end side of the machine body a.
[0028]
Then, the rotational power guided from the tractor T side by the drive shaft d is input to the mission unit e through a torque limiter h incorporated between the drive shaft d and the transmission unit e, and from there to the mission unit e. Conduction is conducted to the intermediate conduction wheel 62 through the provided conduction wheel 60 and the drive chain 61, and conduction is conducted from the intermediate conduction wheel 62 to the conduction wheel 63 provided on the rotation shaft 310 of the conveyance rotor 31 via the conduction chain 64, thereby conveying. A transmission mechanism (not shown) provided on the frame f of the pickup device 1 is driven from the rotation shaft 310 of the transport rotor 31 to the rotation shaft of the auger g and the rotation shaft 10 of the pickup device 1. The screw auger g and the pickup device 1 are driven.
[0029]
In addition, a transmission wheel 70 is pivotally supported on the aforementioned mission part e on the opposite side of the aircraft body a so as to be symmetrical with the above-described conduction wheel 60 as shown in FIG. Rotational power is transmitted to the compression drum 80 pivotally supported at a position to be the upper lip of the inlet portion 20 of the compression chamber 2 and the drive wheel 82 of the tight chain 81 stretched so as to form the peripheral wall of the compression chamber 2. It conducts, and further conducts to the transfer roll 21 via a conduction mechanism (not shown).
[0030]
The conveying means in the roll baler according to the present invention configured as described above includes a conveying passage bottom plate 30 installed so as to be bridged between the rear end side of the pickup device 1 and the inlet portion 20 of the compression chamber 2. And a transport passage w formed between the lower peripheral surface of the transport rotor 31 that pivotally supports the upper surface of the transport rotor 31 when the cross-sectional area thereof transports a normal amount of crops. The front end side is fixedly connected to the machine body a by the connecting shaft P1, and the rear end side is artificially operated by the connecting shaft P2 so as not to be generated. Therefore, when the amount of the crop picked up by the pickup device 1 is a normal amount, the crop can be continuously fed to the compression chamber 2 without causing clogging.
[0031]
Further, when an amount of harvest exceeding the allowable amount is picked up in the conveyance path w, the torque limiter h provided in the power transmission unit is activated due to clogging caused thereby, and the rotational power is temporarily generated. Stop and prevent damage to the mechanical device due to transmission of overload power, as well as slip or intermittent sound generated in the operation of the torque limiter h, or an alarm such as a buzzer controlled by a sensor incorporated in the torque limiter h This state is notified to the operator from a vessel or the like. At this time, the operator may operate the actuator 5 to lower the rear end side of the conveyance path bottom plate 30.
[0032]
The clogging generated in the transport path w is in a state where the front end side of the transport path bottom plate 30 is fixedly supported on the machine body a by the connecting shaft P1, and the rear end side is supported by the actuator 5 via the connecting shaft P2 and fixed to the machine body a. The clogging occurs in the conveyance path w between the upper surface of the conveyance path bottom plate 30 and the lower peripheral surface of the conveyance rotor 31, so that the actuator 5 does not interfere with the lowering operation on the rear end side. The lowering operation on the rear end side of the conveyance path bottom plate 30 is easily performed.
[0033]
Further, the downward rotation by the actuator 5 on the rear end side of the conveyance path bottom plate 30 at this time is performed around the connecting shaft P1 in which the front end side of the conveyance path bottom plate 30 is fixedly supported on the machine body a. The cutting knife 32 assembled together is tilted and rotated backward and downward together to form the bottom surface of the conveyance path w where the blade edge of the blade portion 32a is opened while retracting downward from the conveyance path w. Since the driving load of the transport rotor 31 is reduced, the harvested product is rotated in the opened transport path w due to the resumption of the rotation of the transport rotor 31 driven and rotated via the torque limiter h. Since it is sent to the transfer roll 21 by the transfer blade 33 of the transfer rotor 31 and sent into the compression chamber 2 by this transfer roll 21, clogging can be easily eliminated. To become.
[0034]
In addition, the cutting knife 32 provided so as to protrude from the lower surface side of the conveyance path bottom plate 30 to the conveyance path w is assembled with the blade portion 32b on the support rod 35 provided in the form of an integral reinforcing rib on the lower surface side of the conveyance path bottom plate 30. Therefore, when the rear end side of the conveyance path bottom plate 30 is lowered, the cutting knife 32 is also automatically moved to the side where the conveyance path w is opened together, so that an operation for moving the cutting knife 32 is not required. In addition, it will be easier to eliminate clogged crops.
[0035]
【The invention's effect】
As described above, the transport device in the roll baler according to the present invention is configured to fix and support the front end side of the transport path bottom plate 30 to which the cutting knife 32 is assembled and supported on the machine body a by the connecting shaft P1, and the rear end side thereof. Since it is connected to and supported by the actuator 5 that is operated by human operation and is lowered by the operation of the actuator 5 to open the transport path w rearward, the pickup device 1 picks up the transport path w. When the amount of the crop is normal, it can be continuously fed into the compression chamber 2 without causing clogging, and the amount of the crop exceeds the allowable amount, and the clog is generated. When the torque limiter h provided in the drive system of the transport rotor 31 is thereby operated, the actuator 5 is operated and the transport passage bottom plate 30 is moved. If the end side is lowered, the clogged harvest is sent into the compression chamber 2 by the operation of the transport rotor 31 whose rotational force is restored by reducing the resistance, so that clogging can be eliminated, and clogging occurs. When the problem has been resolved, the actuator 5 can be operated to restore the transport path bottom plate 30 to the raised position, so that it is possible to easily handle the clogging of the crop that occurs during the work.
[Brief description of the drawings]
FIG. 1 is a side view of a conveying device in a conventional roll baler.
FIG. 2 is a side cross-sectional view in which a part of a tractor connected to a roll baler for implementing a conveying device according to the present invention is omitted.
FIG. 3 is a side sectional view in a side view on the opposite side of the roll baler.
FIG. 4 is a side view showing a state where the pickup device of the roll baler is lowered.
FIG. 5 is a side view showing a state where the pickup device of the roll baler is raised.
FIG. 6 is a longitudinal sectional side view of the roll baler conveying apparatus.
FIG. 7 is a vertical side view of the above-described roll baler conveying device in a state where the frame of the pickup device is lifted.
FIG. 8 is a longitudinal side view of the above-described roll baler transport device in a state where the rear end side of the transport path bottom plate is raised.
FIG. 9 is a vertical side view showing a state in which the rear end side of the conveying path bottom plate of the conveying device for the roll baler is lowered.
FIG. 10 is a partially cutaway plan view of the roll baler transport device.
FIG. 11 is a cross-sectional view taken along line AA in FIG.
12 is a cross-sectional view taken along the line BB in FIG. 10 of the above-described roll baler transport apparatus.
13 is a side view of the same roll baler transport device as viewed in the direction C in FIG. 10;
14 is a side view as viewed in the direction C in FIG. 10 with a cover of the roll baler transport device attached. FIG.
[Explanation of symbols]
A ... Roll baler, T ... Tractor, P1, P2 ... Connecting shaft, PTO ... Power take-off shaft, a ... Airframe, b ... Connecting rod, c ... Traction hitch, d ... Drive shaft, e ... Mission section, f ... Frame, f '... Oscillating fulcrum, g ... Screw auger, h ... Torque limiter, j ... Mounting rod, w ... Conveyance passage, y ... Opening port, 1 ... Pickup device, 10 ... Rotating shaft, 11 ... Pickup drum, 12 ... Gear DESCRIPTION OF SYMBOLS 13 ... Perimeter wall, 14 ... Rotating arm, 15 ... Suspension, 2 ... Compression chamber, 20 ... Inlet part, 21 ... Transfer roll, 3 ... Conveying device, 30 ... Conveyance passage bottom plate, 300 ... Nose part, 31 ... Conveyance Rotor, 310 ... rotating shaft, 32 ... cutting knife, 32a ... blade part, 32b ... blade part, 320 ... locking pin, 321 ... engagement cam, 33 ... conveying blade, 34 ... scraper, 35 ... support rod, 350 ... Rear end side, 40 ... Tension bar 41 ... pin, 42 ... locking pin, 43/44 ... stopper, 45 ... sensor, 5 ... actuator, 50 ... actuating rod, 60 ... conduction wheel, 61 ... drive chain, 62 ... intermediate conduction wheel, 63 ... conduction Wheels, 64 ... conducting chains, 70 ... conducting wheels, 71 ... driving chains, 80 ... compression drums, 81 ... tight chains, 82 ... driving wheels, 83 ... passive wheels.

Claims

A conveyance passage bottom plate 30 provided between the rear end side of the pickup device 1 mounted on the lower part of the front side of the machine body a and the inlet 20 of the compression chamber 2 mounted on the machine body a, A conveying rotor 31 that is opposed to and supported by the machine body a, and a cutting knife disposed in a conveying path w formed between the lower surface side of the peripheral surface of the conveying rotor 31 and the upper surface side of the conveying path bottom plate 30. In the roll baler transport device 3 that feeds the harvested product picked up by the pickup device 1 to the compression chamber 2 by driving the transport rotor 31, the transport passage bottom plate 30 has an upper surface thereof and a lower periphery of the transport rotor 31. The conveyance path w formed between the front and rear surfaces of the conveyance path bottom plate 30 is set so that the conveyance path w formed between the plane and the surface does not cause clogging when a normal amount of harvest is transferred. , the rear end by the connecting shaft Ligated支架to lift pivots connecting shaft center of the rear end side of the conveying path bottom plate 30, operated by manual operation, and the upper end side operating rod 50 on the lower end side is支架the body a is lifting operation the lower end of the actuating rod 50 of the actuator 5, connected to the lifting pivot in mind during the connecting shaft by actuation by manual operation of the actuator 5, the transport path of the cutting knife 32 in the transportation path base plate 30 assembling supporting allowed to lift rotates together with the bottom plate 30, the conveying apparatus in the roll baler, characterized in that the the drive system of the transfer rotor 31 configured Nde write set torque limiter h.

The conveyance passage bottom plate 30, the lower surface side of the conveying path bottom plate 30, a support鈑35 extending downward to the stiffening rib and So設ligated together, a connecting shaft front end side of the supporting鈑35 on the body a The rear end side of the support rod 35 is connected to the lower end portion of the operating rod 50 of the actuator 5 whose upper end side is connected to the machine body a and the lower end side operating rod 50 is moved up and down. 2. A conveying device in a roll baler according to claim 1, wherein the conveying device is mounted on the airframe a so that the raising and lowering operations of the rear end side of the conveying passage base plate 30 are performed by an expansion / contraction operation by an artificial operation of the actuator. .

The transport passage bottom plate 30 is formed separately from the machine body a, the front end side thereof is connected to and supported by the machine body a by a connecting shaft, the rear end side is connected to the machine body a, and the lower end side operation rod 50 is expanded and contracted. The actuator 5 is connected to the lower end of the actuator 5 and is supported on the machine body a by the operation of the actuator 5 so that the rear end of the actuator 5 moves up and down around the connecting shaft. towards conveying path w formed between the lower peripheral surface the top surface and the conveying rotor 31 that causes it axially supported on the upper surface side of the So設Su Ru cutting knife 32 as the blade portion 32a protrudes, it the blade body portion 32b, said allowed支架assembled to transport passage bottom plate support鈑35 that was suspended from the lower surface side to the reinforcing rib 30, together with the conveying passage bottom plate 30 by the operation of the actuator 5, the connecting shaft center To move up and down Conveying apparatus in roll baler according to claim 1, characterized in that allowed支架the feed passage bottom plate 30.

To vertically support鈑35 integrally connected to the lower surface, the assembled blade body portion 32b of the cutting knife 32 to the support鈑35, more fixed支架the connecting shaft front end side body a, the rear end the conveyance passage bottom plate 30 disposed between the actuator 5 and支架the body a by allowed more linked to another connecting shaft between the rear end side of the pickup device 1 and the inlet portion 20 of the compression chamber 2, the actuator 5 is raised operative In the normal state, the blade portion 32a of the cutting knife 32 assembled to the conveyance path bottom plate 30 occupies a position for closing the conveyance path w formed between the lower peripheral surface of the conveyance rotor 31 and the upper surface of the conveyance path bottom plate 30. , during lowering operation of the actuator 5, the child connected to an actuator 5 so as to occupy a position in which the blade edge of the cutting knife 3 2 blade portions 32a which descends rotating together with the conveying passage bottom plate 30 forms the bottom surface of the conveyance path w The conveying apparatus in the roll baler of Claim 1 characterized by these.

The front side is more rigidly connected to the connecting shaft to the body a, and allowed more linked to another connecting shaft to the actuator 5 that支架the rear end to the body a, the inlet portion of the compression chamber 2 and a rear end side of the pickup device 1 A support rod 35 that hangs down in the form of a reinforcing rib on the lower surface side of the conveyance passage bottom plate 30 disposed between the support rod 35 and the rear end side 350 of the support rod 35. The lower end surface side of the transfer roll 21 is formed so as to surround the lower side when the rear end side of the conveyance path bottom plate 30 is raised to the upper limit position by the actuator 5. The conveyance apparatus in the roll baler of Claim 1 or Claim 4.