JP3682007B2

JP3682007B2 - Threshing sorter

Info

Publication number: JP3682007B2
Application number: JP2001259080A
Authority: JP
Inventors: 仁佐村木; 忠義佐藤
Original assignee: Yanma Agricultural Equipment Co Ltd
Current assignee: Yanma Agricultural Equipment Co Ltd
Priority date: 2001-08-29
Filing date: 2001-08-29
Publication date: 2005-08-10
Anticipated expiration: 2015-07-21
Also published as: JP2002058329A

Description

【０００１】
【発明の属する技術分野】
本発明はコンバインなどの脱穀部に用いられる揺動選別盤など脱穀選別装置に関する。
【０００２】
【発明が解決しようとする課題】
従来、特開平３−１９１７１５号公報に示す如く、金属製の支持フレームによって左右側壁を連結して揺動選別盤を形成する技術があるが、揺動選別盤の加工組立作業の簡略化及び製造コスト低減、構成部品数の削減及び軽量化などを容易に図り得ない等の問題がある。
【０００３】
【課題を解決するための手段】
然るに、本発明は、扱胴下方に揺動選別盤を設置する脱穀機の脱穀選別装置であって、揺動選別盤のフィードパンと、このフィードパンの後部に連設する後方移送ラックと、この後方移送ラックの後部に連設するグレンシーブと、これらフィードパンと後方移送ラックとグレンシーブの左右側に設けた左右側壁とを合成樹脂で一体形成した脱穀選別装置において、揺動選別盤の前端底面の左右側には、合成樹脂で一体形成した左右一対の支持アームを設けるとともに、フィードパンと後方移送ラックとの間には垂直壁面を設け、さらに、左右支持アーム間には第１横リブを、左右支持アームと垂直壁面との間には左右の縦サイドリブを、この左右の縦サイドリブの間には第２・第３・第４横リブを、第１横リブと垂直壁面の間には第１・第２・第３中央縦リブをそれぞれ設けるとともに、第１・第２・第３中央縦リブの高さは縦サイドリブの高さよりも大に、前端側の第１・第２・第３横リブの高さは第１・第２・第３中央縦リブの高さよりもより大に、後端側の第４横リブの高さは縦サイドリブの高さと略同一に形成し、第２横リブの略中央位置と、第３中央縦リブの略中央位置にそれぞれ樹脂を流しこむためのゲートを位置させるとともに、各リブとフィードパンの底面とのコーナ部、縦サイドリブと垂直壁面とのコーナ部、第１・第２・第３中央縦リブと垂直壁面とのコーナ部にそれぞれ円弧面または傾斜を形成したことを特徴とする脱穀選別装置を提供せんとするものである。
【０００５】
【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は揺動選別盤の成形加工状態の側面説明図、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（８ａ）及び穀稈搬送機構などを備える刈取部、（９）は前記脱穀部（４）の後側に取付けて、排藁チェン（１０）及び排藁タイン（１１）終端を臨ませる排藁処理部、（１２）は運転席（１３）及び運転操作部（１４）を備える運転台、（１５）は機台（３）の右側前部に配備してエンジン（１６）を内設するエンジン部、（１７）は前記エンジン部（１５）後方に配設して脱穀部（４）からの穀粒を揚穀筒（１８）を介し溜める穀粒タンクであり、連続的に刈取り・脱穀作業を行うように構成している。
【０００６】
また、図４乃至図６に示す如く、図中（１９）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、（２０）は前記扱室（１９）に穀稈を挿入する扱口、（２１）は前記扱室（１９）下方に張架させるクリンプ網、（２２）は揺動リンク（２３）及びガイドローラ（２４）を介して前後方向に揺動自在に支持する揺動選別盤であり、前記クリンプ網（２１）前部下方に位置させるフィードパン（２５）と、前記クリンプ網（２１）後部下方に位置させるチャフシーブ（２６）と、該チャフシーブ（２６）下方に配設するグレンシーブ（２７）とで前記揺動選別盤（２２）を構成すると共に、該揺動選別盤（２２）の後方に上部及び下部篩い線（２８）（２９）を一体的に取付けている。
【０００７】
さらに、図中（３０）は前記選別盤（２２）方向に選別風を送給する唐箕、（３１）は揚穀筒（１８）を介して前記穀粒タンク（１７）に穀粒を取出す一番コンベア、（３２）は二番物を還元筒（３３）を介して前記揺動選別盤（２２）前部に還元する二番コンベア、（３４）は前記篩い線（２８）上方で処理胴室後端の排塵口に対向させて脱穀左側壁に、吸引口（３５）を臨ませる吸排塵ファンであり、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（２２）で選別し整粒のみを前記穀粒タンク（１７）に取出すと共に、排藁を排藁チェン（１０）及びタイン（１１）を介し排藁カッタ（３６）（３７）を有する排藁処理部（９）に送り込んで切断後機外に排出させるように構成している。
【０００８】
図７乃至図９に示す如く、前記選別盤（２２）はポリプロピレンなど合成樹脂で上面及び後面を開放した凵形の受皿状に成形された樹脂一体成形品であり、フィードパン（２５）と、フィードパン（２５）後部に連設する後方移送ラック（３８）と、グレンシーブ（２７）と、左右側壁（３９）（４０）とを一体形成すると共に、前端底面に前記揺動リンク（２３）に連結させる左右一対の支持アーム（４１）を一体形成している。このように、少なくとも上面及び後面を開放した受皿状に成形された樹脂一体成形品によって揺動選別盤（２２）を形成し、揺動選別盤（２２）の成形加工の簡略化並びに製造コストの低減などを行い、かつ揺動選別盤（２２）の構成部品数の削減並びに軽量化を行う。
【０００９】
また、前記チャフシーブ（２６）は、選別盤（２２）の左右側壁（３９）（４０）間に断面が逆Ｔ字形の９枚のチャフシーブフィン（４２）を前後方向に一定の間隔を設けて前低後高の傾斜姿勢にして横架させたもので、このフィン（４２）と、このフィン（４２）の左右端面に設ける左右フランジ（４３）と、フランジ（４３）の外側両端に設ける平行な二軸である回動支点軸（４４）及び回動量規制軸（４５）からチャフシーブ（２６）は成り、前記フィン（４２）もまた選別盤（２２）と同様にポリプロピレンなど合成樹脂で一体成形加工したものである。
【００１０】
上記から明らかなように、扱胴（６）下方に揺動選別盤（２２）を設置させる脱穀機の選別装置において、揺動選別盤（２２）のグレンシーブ（２７）及び左右側壁（３９）（４０）とチャフシーブフィン（４２）を合成樹脂で成形加工し、左右側壁（３９）（４０）間にグレンシーブ（２７）を一体形成によって連結させて左右側壁（３９）（４０）間にグレンシーブ（２７）を一体形成し、左右側壁（３９）（４０）間にチャフシーブフィン（４２）を設け、グレンシーブ（２７）のための特別の固定部材を不要にして軽量化並びに加工組立の簡略化を行い、揺動選別盤（２２）の製造コスト低減などを図る。
【００１１】
さらに、前記選別盤（２２）の左側壁（３９）には、フィン（４２）を左側方から抜差しするためのフィン出入口（４６）を開設し、該出入口（４６）を塞ぐ閉塞板（４７）を左側壁（３９）の外面にボルトで脱着自在に固着する一方、前記閉塞板（４７）と右側壁（４０）にはフィン（４２）の９個の回動支点孔（４８）と、この孔（４８）を中心とする９個の円弧長孔（４９）を形成して、前記閉塞板（４７）と右側壁（４０）間でフィン（４２）両端の支点軸（４４）及び規制軸（４５）を支点孔（４８）及び長孔（４９）に嵌合させて、支点軸（４４）を中心に長孔（４９）の範囲内でフィン（４２）の傾斜角を調節自在とするように構成している。
【００１２】
またさらに、選別盤（２２）の左右側壁（３９）（４０）と脱穀機筐の左右側壁（５０）（５１）との隙間を埋めるシール材（５２）を設けると共に、このシール材（５２）を取付けるためのシール溝（５３）を選別盤（２２）の左右側壁（３９）（４０）の上部外面に全長に亘って形成させるもので、左右側壁（３９）（４０）の上端外側に上下の突出縁（５４）（５５）を水平方向に突出させて断面コ形状に形成し、これら突出縁（５４）（５５）で囲まれる内側をシール溝（５３）に形成すると共に、該シール溝（５３）にシール材（５２）を嵌入させ、シール溝（５３）奥部の側壁（３９）（４０）に開設する円形嵌着孔（５６）にシール材（５２）の抜止め部（５２ａ）を嵌着させ、リップ部（５２ｂ）先端を側壁（５０）（５１）内側面に摺接させて、選別盤（２２）と側壁（５０）（５１）間の隙間よりの漏下を防止するように構成している。
【００１３】
ところで、図１に示す如く、前記選別盤（２２）を成形加工する成形用金型は上型（５７）及び下型（５８）と、前記シール溝（５３）を成形するサイドコアと呼ばれる側型（５９）とを用いたもので、側型（５９）には前記シール溝（５３）を形成するコア部（５９ａ）を内側方向に突出形成して、上型（５７）及び下型（５８）及び左右側型（５９）を合体させたとき内側に形成される隙間に溶融樹脂を充填させて選別盤（２２）本体の成形加工を行うように構成している。
【００１４】
そして成形加工後、前記側型（５９）を最初に取外し、次に上型（５７）及び下型（５８）を分割することによって成形品である選別盤（２２）の金型よりの取出しを行うもので、この際選別盤（２２）左右両側の上部突出縁（５４）の上面に一体形成する前後方向にそれぞれ５つのストッパピン部（５４ａ）を上型（５７）に食い込ませる状態とさせて、側型（５９）を横方向に取外す場合にも、コア部（５９）を包む突出縁（５４）（５５）を追従移動させることなくピン部（５４ａ）によってその動きを規制して、適正形状を保持するように構成したものである。
【００１５】
図７、図９に示す如く、選別盤（２２）底面の左右支持アーム（４１）間に第１横リブ（６０ａ）を、またフィードパン（２５）と後方移送ラック（３８）との間に形成される垂直壁面（６１）と支持アーム（４１）間に左右の縦サイドリブ（６２）（６２）を突出形成すると共に、左右の縦サイドリブ（６２）（６２）間に３本の平行な第２・第３・第４横リブ（６０ｂ）（６０ｃ）（６０ｄ）を、また第１横リブ（６０ａ）と垂直壁面（６１）間に３本の平行な第１・第２・第３中央縦リブ（６３ａ）（６３ｂ）（６３ｃ）をそれぞれ形成し、サイドリブ（６２）より第１・第２・第３中央縦リブ（６３ａ）（６３ｂ）（６３ｃ）の高さを大に、また第１・第２・第３中央縦リブ（６３ａ）（６３ｂ）（６３ｃ）より前端側３本の第１・第２・第３横リブ（６０ａ）（６０ｂ）（６０ｃ）の高さを大に、さらに後端側の第４横リブ（６０ｄ）をサイドリブ（６２）の高さと略同一に形成している。そしてリブ高さの高い第２横リブ（６０ｂ）と第３中央縦リブ（６３ｃ）の略中央位置（ａ）（ｂ）の２箇所にゲート（湯口）を設けると共に、これらリブ（６０ａ）〜（６０ｄ）（６２）（６３ａ）〜（６３ｃ）を多数とし、高さを大とさせることによって、樹脂を流しこむ時の流量を増大させて樹脂がすみずみまでいきわたることを助長させ成形をスムーズに行わしめるように構成している。（なお、成形時には図１とは上下逆に下型（５８）を上とするため、第２横リブ（６０ｂ）と第３中央縦（６３ｃ）にゲートを設けるものである。）この結果選別盤（２２）の成形品に、樹脂の途切れ箇所や一体溶融化しない非融合部分など発生するのが防止できて、強度及び耐久性を高めて品質を安定向上させることができるものである。
【００１６】
また、各リブ（６０ａ）〜（６０ｄ）（６２）（６３ａ）〜（６３ｃ）と、フィードパン（２５）底面及び垂直壁面（６１）との各コーナ部（Ｒ１）・（Ｒ２）（Ｒ３）を小さな円弧面や傾斜（全てのコーナにＲをつける）に形成して、作業中これらコーナ部（Ｒ１）・（Ｒ２）（Ｒ３）にかかる応力の集中化を防止し、力の分散化を図って耐久性を向上させるように構成している。
【００１７】
上記から明らかなように、扱胴（６）下方に揺動選別盤（２２）を設置させる脱穀機の選別装置において、揺動選別盤（２２）に設ける後方移送ラック（３８）をグレンシーブ（２７）前部に合成樹脂形成によって一体形成し、後方移送ラック（３８）に連結させるグレンシーブ（２７）を揺動選別盤（２２）の左右側壁（３９）（４０）に樹脂一体形成によって設け、前記後方移送ラック（３８）とグレンシーブ（２７）との上方に、別体で、合成樹脂製の可動チャフシーブ（２６）を取付けると共に、揺動選別盤（２２）の下面側に補強リブである第１・第２・第３中央縦リブ（６３ａ）（６３ｂ）（６３ｃ）と第１・第２・第３横リブ（６０ａ）（６０ｂ）（６０ｃ）を突出させて縦横に延設させ、揺動選別盤（２２）の左右側壁（３９）（４０）間のグレンシーブ（２７）前部構造の簡略化及び強度向上などを後方移送ラック（３８）の一体形成によって行い、下面側に第１・第２・第３中央縦リブ（６３ａ）（６３ｂ）（６３ｃ）と第１・第２・第３横リブ（６０ａ）（６０ｂ）（６０ｃ）を突出させることによって揺動選別盤（２２）構造の簡略化並びに剛性向上などを行う。
【００１８】
さらに図７、図１１にも示す如く、前記グレンシーブ（２７）は孔部（６４）と孔部（６４）との間の肉部（６５）の高さ寸法（Ｂ）を巾寸法（Ａ）より大（Ｂ＞Ａ）に形成して、成形時における湯回りを向上させると共に、強度及び選別性能も向上させるように構成している。
【００１９】
図１０に示す如く、前記フランジ（４３）に全端面を連結させる支点軸（４４）に対し、部分的に連結させる規制軸（４５）側にリブ（６６）を設けるもので、前記フィン（４２）と規制軸（４５）との間の連結コーナ部に三角形状のリブ（６６）を設ける如く一体成形して、この部分での湯回りを向上させて、ひけ巣（収縮巣）などの発生を防止するように構成している。特にフィン（４２）の長さ（Ｌ１）に対し支点軸（４４）及び規制軸（４５）の軸芯間の長さ（Ｌ２）が大（Ｌ２＞Ｌ１）の場合にリブ（６６）の設置を必要とする。また前記支点軸（４４）及び規制軸（４５）の先端形状を従来より傾斜（α）の緩やか（α≒３０°）で長さ（Ｃ）の長いテーパ形状に形成して、組付作業での容易化を図るように設けたものである。
【００２０】
図７、図１１に示す如く、前記フィードパン（２５）の後部に鉄板製のグレンパン（６７）を別途取付けるもので、フィードパン（２５）の後部を段差を有する高さの低いグレンパン取付部（２５ａ）に形成して、該取付部（２５ａ）にグレンパン（６７）取付時にあってはフィードパン（２５）とグレンパン（６７）の上面が略面一に揃う状態とさせる一方、これらパン（２５）（６７）の継ぎ目となるフィードパン（２５）の段差部（２５ｂ）前側をグレンパン（６７）の厚み（ｅ）より大とさせる段差寸法（ｆ）に形成し、フィードパン（２５）を段差部（２５ｂ）前側で緩やかに盛上げる状態とさせて、フィードパン（２５）よりグレンパン（６７）への被選別物のひっかかることのないスムーズな流下を促進させるように構成している。
【００２１】
【発明の効果】
以上実施例から明らかなように本発明は、扱胴（６）下方に揺動選別盤（２２）を設置させる脱穀機の選別装置において、揺動選別盤（２２）のグレンシーブ（２７）及び左右側壁（３９）（４０）とチャフシーブフィン（４２）を合成樹脂で成形加工し、左右側壁（３９）（４０）間にグレンシーブ（２７）を一体形成し、揺動選別盤（２２）の下面側に第１・第２・第３中央縦リブ（６３ａ）（６３ｂ）（６３ｃ）と第１・第２・第３横リブ（６０ａ）（６０ｂ）（６０ｃ）を突出させて縦横に延設させるもので、下面側に第１・第２・第３中央縦リブ（６３ａ）（６３ｂ）（６３ｃ）と第１・第２・第３横リブ（６０ａ）（６０ｂ）（６０ｃ）を突出させることによって揺動選別盤（２２）構造の簡略化並びに剛性向上などを容易に行うことができるものである。
【００２２】
特に、左右支持アーム（４１）間には第１横リブ（６０ａ）を、左右支持アーム（４１）（４１）と垂直壁面（６１）との間には左右の縦サイドリブ（６２）（６２）を、この左右の縦サイドリブ（６２）（６２）の間には第２・第３・第４横リブ（６０ｂ）（６０ｃ）（６０ｄ）を、第１横リブ（６０ａ）と垂直壁面（６１）の間には第１・第２・第３中央縦リブ（６３ａ）（６３ｂ）（６３ｃ）をそれぞれ設けるとともに、第１・第２・第３中央縦リブ（６３ａ）（６３ｂ）（６３ｃ）の高さは縦サイドリブ（６２）の高さよりも大に、前端側の第１・第２・第３横リブ（６０ａ）（６０ｂ）（６０ｃ）の高さは第１・第２・第３中央縦リブ（６３ａ）（６２ｂ）（６３ｃ）の高さよりもより大に、後端側の第４横リブ（６０ｄ）の高さは縦サイドリブ（６２）の高さと略同一に形成し、第２横リブ（６０ｂ）の略中央位置と、第３中央縦リブ（６３ｃ）の略中央位置にそれぞれ樹脂を流しこむためのゲートを位置させるとともに、各リブ（６０ａ）（６２）（６０ｂ）（６０ｃ）（６０ｄ）（６３ａ）（６３ｂ）（６３ｃ）とフィードパン（２５）の底面とのコーナ部、縦サイドリブ（６２）と垂直壁面（６１）とのコーナ部、第１・第２・第３中央縦リブ（６３ａ）（６３ｂ）（６３ｃ）と垂直壁面（６１）とのコーナ部にそれぞれ円弧面または傾斜を形成したことによって、樹脂を流しこむ時の流量を増大させて樹脂がすみずみまでいきわたることを助長させ成形をスムーズに行わしめることができ、成形品に、樹脂の途切れ箇所や一体溶融化しない非融合部分など発生するのが防止できて、強度及び耐久性を高めて品質を安定向上させることができる。しかも、成形品における応力の集中化を防止し、力の分散化を図って耐久性を向上させることができる。
【図面の簡単な説明】
【図１】揺動選別盤の成形加工状態を示す説明図。
【図２】コンバインの全体側面図。
【図３】コンバインの全体平面図。
【図４】脱穀部の断面説明図。
【図５】揺動選別盤の側面図。
【図６】揺動選別盤の断面説明図。
【図７】揺動選別盤の断面側面図。
【図８】揺動選別盤の平面説明図。
【図９】揺動選別盤の底面説明図。
【図１０】揺動選別盤の部分説明図。
【図１１】揺動選別盤の部分拡大図。
【符号の説明】
（６）扱胴
（２２）揺動選別盤
（２６）稼動チャフシーブ
（２７）グレンシーブ
（３８）後方移送ラック
（３９）（４０）側壁
（４２）チャフシーブフィン
（６０ａ）〜（６０ｃ）横リブ（補強リブ）
（６３ａ）〜（６３ｃ）縦リブ（補強リブ）[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a threshing sorter such as a swing sorter used in a threshing unit such as a combine.
[0002]
[Problems to be solved by the invention]
Conventionally, as disclosed in Japanese Patent Laid-Open No. 3-191715, there is a technique for forming a swing sorting plate by connecting left and right side walls with a metal support frame. There are problems such as cost reduction, reduction in the number of components, weight reduction, and the like.
[0003]
[Means for Solving the Problems]
However, the present invention is a threshing / sorting device for a threshing machine in which a swing sorter is installed below the handling cylinder, and a feed pan of the swing sorter, a rear transfer rack connected to the rear of the feed pan, In the threshing sorter in which the grain sheave connected to the rear portion of the rear transfer rack, and the feed pan, the rear transfer rack, and the left and right side walls provided on the left and right sides of the sheave are integrally formed of synthetic resin, the bottom surface of the front end of the swing sorter On the left and right sides, a pair of left and right support arms integrally formed of synthetic resin is provided, a vertical wall surface is provided between the feed pan and the rear transfer rack, and a first horizontal rib is provided between the left and right support arms. The left and right vertical side ribs are provided between the left and right support arms and the vertical wall surface, the second, third and fourth horizontal ribs are provided between the left and right vertical side ribs, and the first horizontal rib and the vertical wall surface are provided. 1st and 2nd Third provided with a central longitudinal rib, respectively, the height of the first, second and third central longitudinal rib height to the larger than the height of the vertical side ribs, the first, second and third transverse rib of the front side the larger than the height of the first, second and third central longitudinal rib, a fourth transverse rib height of the rear end side is substantially equal to the vertical side ribs height, substantially at the center of the second lateral rib And a gate for pouring the resin at a substantially central position of the third central vertical rib, a corner portion between each rib and the bottom of the feed pan, a corner portion between the vertical side rib and the vertical wall surface, the first -It is intended to provide a threshing sorter characterized by forming a circular arc surface or an inclination at the corner portions of the second and third central longitudinal ribs and the vertical wall surface.
[0005]
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 state of forming the swing sorter, FIG. 2 is an overall side view of the combine, FIG. 3 is a plan view thereof, and (1) in FIG. 1 is a track on which a traveling crawler (2) is installed. A frame, (3) is a machine base installed on the track frame (1), (4) is stretched on the left side with a feed chain (5) and has a handling cylinder (6) and a processing cylinder (7). A threshing part, (8) a cutting part provided with a cutting blade (8a) and a culm conveying mechanism, (9) is attached to the rear side of the threshing part (4), and a slaughter chain (10) and a staking tine (11) Exclusion processing unit facing the end, (12) is a driver's cab with a driver's seat (13) and a driving operation unit (14), (15) is arranged at the right front of the machine base (3) The engine part which installs an engine (16), (17) is the grain from the threshing part (4) arranged behind the engine part (15). The a grain tank for storing via AgeKoku cylinder (18), and configured to perform continuously reaping-threshing operations.
[0006]
As shown in FIGS. 4 to 6, in the figure, (19) is a handling chamber in which an axial flow type handling cylinder (6) pivoted in the front-rear direction of the machine body is installed, and (20) is the handling chamber (19). ) To insert the cereal bowl, (21) to the crimping net (19) stretched below the chamber (19), (22) in the front-rear direction through the swing link (23) and the guide roller (24) A swing sorter that is swingably supported; a feed pan (25) positioned below the front of the crimp net (21); a chaff sheave (26) positioned below the rear of the crimp net (21); The rocking sorter (22) is composed of the grain sheave (27) disposed below the chaff sheave (26), and the upper and lower sieving lines (28) (29) are arranged behind the rocking sorter (22). Are integrally attached.
[0007]
Further, in the figure, (30) is a tang that feeds the sorting wind in the direction of the sorter (22), and (31) is a grain that is taken out into the grain tank (17) via the milled cylinder (18). Number conveyor (32) is a second conveyor for returning the second product to the front of the swing sorter (22) via a reduction cylinder (33), and (34) is a processing cylinder above the sieve line (28). A dust suction fan that faces the dust outlet at the rear end of the chamber and faces the suction port (35) on the left side wall of the threshing, and shakes the grain threshed by the handling cylinder (6) and the processing cylinder (7). It is sorted by the dynamic sorter (22), and only the sized particles are taken out into the grain tank (17), and the waste is removed by the waste cutter (36) (37) via the waste chain (10) and tine (11). It is configured so as to be sent out to the waste disposal unit (9) and discharged outside the machine after cutting.
[0008]
As shown in FIG. 7 to FIG. 9, the sorting panel (22) is a resin-integrated molded product formed into a bowl-shaped saucer shape with a top surface and a rear surface opened with a synthetic resin such as polypropylene, a feed pan (25), The rear transfer rack (38) provided continuously to the rear part of the feed pan (25), the grain sheave (27), and the left and right side walls (39) and (40) are integrally formed, and the rocking link (23) is formed on the bottom surface of the front end. A pair of left and right support arms (41) to be coupled are integrally formed. In this way, the rocking sorter (22) is formed of a resin-integrated molded product molded into a saucer shape with at least the upper and rear surfaces open, simplifying the molding process of the rocking sorter (22) and manufacturing costs. The number of components of the swing sorter (22) is reduced and the weight is reduced.
[0009]
Further, the chaff sheave (26) has nine chaff sheave fins (42) each having a reverse T-shaped cross section between the left and right side walls (39), (40) of the sorting board (22), with a certain distance in the front-rear direction. The fin (42), the left and right flanges (43) provided on the left and right end surfaces of the fin (42), and the parallel provided on the outer ends of the flange (43) A chaff sheave (26) is composed of a biaxial rotation fulcrum shaft (44) and a rotation amount regulating shaft (45), and the fin (42) is also integrally molded with a synthetic resin such as polypropylene in the same manner as the sorting panel (22). It is a thing.
[0010]
As is apparent from the above, in the threshing machine sorting apparatus in which the swing sorter (22) is installed below the handling cylinder (6), the grain sieve (27) and the left and right side walls (39) (39) ( 40) and the chaff sheave fin (42) are molded with a synthetic resin, and the grain sheave (27) is integrally formed between the left and right side walls (39) and (40) to form a glen sieve (27) between the left and right side walls (39) and (40). ), A chaff sheave fin (42) is provided between the left and right side walls (39), (40), and a special fixing member for the glen sieve (27) is not required, thereby reducing the weight and simplifying the process assembly. The production cost of the swing sorter (22) is reduced.
[0011]
Further, the left wall (39) of the sorting panel (22) is provided with a fin inlet / outlet (46) for inserting and removing the fin (42) from the left side, and a closing plate (47) for closing the inlet / outlet (46). Are fixed to the outer surface of the left side wall (39) with bolts, while the closing plate (47) and the right side wall (40) are provided with nine rotation fulcrum holes (48) of fins (42). Nine circular arc holes (49) centering on the hole (48) are formed, and the fulcrum shafts (44) and restricting shafts at both ends of the fin (42) between the closing plate (47) and the right side wall (40). (45) is fitted into the fulcrum hole (48) and the long hole (49), and the inclination angle of the fin (42) is adjustable within the range of the long hole (49) around the fulcrum shaft (44). It is configured as follows.
[0012]
Furthermore, a sealing material (52) is provided to fill a gap between the left and right side walls (39) and (40) of the sorting board (22) and the left and right side walls (50) and (51) of the threshing machine housing, and the sealing material (52). A seal groove (53) for attaching the right and left side walls (39) and (40) of the sorting board (22) is formed over the entire length of the upper outer surface. The projecting edges (54) and (55) of each of these are projected in the horizontal direction to form a U-shaped cross section, and the inside surrounded by these projecting edges (54) and (55) is formed in the seal groove (53), and the seal groove The sealing material (52) is inserted into (53), and the retaining portion (52a) of the sealing material (52) is inserted into the circular fitting hole (56) opened in the side wall (39) (40) at the back of the sealing groove (53). ) And the tip of the lip (52b) is attached to the side wall (50) (51 By sliding contact with the inner surface, and configured to prevent the lower leakage than the gap between sorting machine (22) and side walls (50) (51).
[0013]
By the way, as shown in FIG. 1, the molding die for molding the sorting plate (22) is an upper mold (57) and a lower mold (58), and a side mold called a side core for molding the seal groove (53). (59), and a core part (59a) for forming the seal groove (53) is formed on the side mold (59) so as to protrude inward, and an upper mold (57) and a lower mold (58) are formed. ) And the left and right molds (59) are combined so that the gap formed on the inside is filled with molten resin, and the main body of the sorting plate (22) is molded.
[0014]
Then, after the molding process, the side mold (59) is first removed, and then the upper mold (57) and the lower mold (58) are divided to take out from the mold of the sorter (22) which is a molded product. In this case, the sorting board (22) is made to be in a state in which five stopper pin portions (54a) are bitten into the upper mold (57) in the front-rear direction integrally formed on the upper surfaces of the upper protruding edges (54) on both the left and right sides. Even when the side mold (59) is removed in the lateral direction, its movement is restricted by the pin portion (54a) without following the projecting edges (54) (55) surrounding the core portion (59), It is configured to maintain an appropriate shape.
[0015]
As shown in FIGS. 7 and 9, the first lateral rib (60a) is provided between the left and right support arms (41) on the bottom surface of the sorting board (22), and the feed pan (25) and the rear transfer rack (38). Left and right vertical side ribs (62) (62) are formed to project between the vertical wall surface (61) and the support arm (41), and three parallel first ribs are formed between the left and right vertical side ribs (62) (62) . 2, 3rd and 4th transverse ribs (60b) (60c) (60d), and between the 1st transverse rib (60a) and the vertical wall surface (61), three parallel first, second and third centers Vertical ribs (63a), (63b) and (63c) are formed, respectively, and the heights of the first, second and third central vertical ribs (63a), (63b) and (63c) are made larger than the side ribs (62) . 1, second and third central longitudinal ribs (63a) (63b) (63c ) first front-side three from The height of the second and third transverse ribs (60a) (60b) (60c) on a large, and moreover, a rear end side of the fourth lateral rib (60d) to the height substantially the same side ribs (62) . And while providing a gate (pouring gate) in two places of the substantially center position (a) (b) of the 2nd horizontal rib (60b) with a high rib height and the 3rd center vertical rib (63c), these ribs (60a)- (60d) (62) (63a)-(63c) is made large, and by increasing the height, the flow rate when pouring the resin is increased, and the resin is spread throughout the entire area, thereby smoothing the molding. It is configured to be performed. (At the time of molding, since the lower mold (58) is turned upside down from FIG. 1, the gate is provided in the second horizontal rib (60b) and the third central vertical (63c)). In the molded product of the board (22), it is possible to prevent the occurrence of resin breaks or non-fused parts that are not integrally melted, and the strength and durability can be increased, and the quality can be improved stably.
[0016]
Moreover, each corner | angular part (R1) * (R2) (R3) of each rib (60a)-(60d) (62) (63a)-(63c) and a feed pan (25) bottom face and a vertical wall surface (61). Is formed into a small arc surface or slope (R is attached to all corners) to prevent stress concentration on these corners (R1), (R2), and (R3) during work, and to distribute force It is configured to improve durability.
[0017]
As is clear from the above, in the threshing machine sorting apparatus in which the swing sorter (22) is installed below the handling cylinder (6), the rear transfer rack (38) provided on the swing sorter (22) is provided with a grain sieve (27). ) Glen sieves (27) integrally formed by synthetic resin formation at the front and connected to the rear transfer rack (38) are provided on the left and right side walls (39) (40) of the swing sorter (22) by resin integral formation, A movable synthetic chaff sheave (26) made of synthetic resin is separately attached above the rear transfer rack (38) and the Glen sheave (27), and a reinforcing rib is provided on the lower surface side of the swing sorter (22) . The second and third central vertical ribs (63a) (63b) (63c) and the first, second and third horizontal ribs (60a) (60b) (60c) are projected and extended vertically and horizontally to swing. Left and right side walls (3 ) (40) Gurenshibu between (27) and simplifying, and improving the strength of the front structure carried by integrally forming the rear transfer rack (38), first, second and third central longitudinal rib on the lower surface (63a) (63b) (63c) and the first, second and third lateral ribs (60a) (60b) (60c) are projected to simplify the structure of the swing sorter (22) and improve the rigidity.
[0018]
Further, as shown in FIG. 7 and FIG. 11, the grain sieve (27) has a height dimension (B) of the flesh portion (65) between the hole portion (64) and the hole portion (64). It is formed so as to be larger (B> A), and it is configured to improve the hot water at the time of molding and to improve the strength and sorting performance.
[0019]
As shown in FIG. 10, ribs (66) are provided on the side of the restriction shaft (45) that is partially connected to the fulcrum shaft (44) that connects all end faces to the flange (43). ) And the regulating shaft (45) are integrally formed so that a triangular rib (66) is provided at the connecting corner portion, improving the amount of hot water in this portion, and generating a shrinkage nest (shrinkage nest) It is configured to prevent this. In particular, when the length (L2) between the fulcrum shaft (44) and the regulating shaft (45) is large (L2> L1) with respect to the length (L1) of the fin (42), the rib (66) is installed. Need. Further, the tip shapes of the fulcrum shaft (44) and the regulation shaft (45) are formed into a tapered shape having a gentler slope (α) (α≈30 °) and a longer length (C) than in the prior art. It is provided to facilitate the above.
[0020]
As shown in FIGS. 7 and 11, an iron plate-made grain pan (67) is separately attached to the rear portion of the feed pan (25), and the rear portion of the feed pan (25) is provided with a low-profile glen pan mounting portion ( 25a), and when the glen pan (67) is attached to the mounting portion (25a), the feed pan (25) and the upper surface of the glen pan (67) are made to be substantially flush with each other. ) (67) The step (25b) front side of the feed pan (25) serving as a joint is formed to have a step size (f) larger than the thickness (e) of the Glen pan (67), and the feed pan (25) is stepped. It is configured to gently swell on the front side of the section (25b) so as to promote a smooth flow of the object to be sorted from the feed pan (25) to the Glen pan (67). That.
[0021]
【The invention's effect】
As is apparent from the above embodiments, the present invention provides a threshing machine sorting apparatus in which a swing sorter (22) is installed below the handling cylinder (6), and the grain sieve (27) and left and right of the swing sorter (22). The side walls (39), (40) and the chaff sheave fin (42) are molded with synthetic resin, and the glen sieve (27) is integrally formed between the left and right side walls (39), (40). The first, second and third central longitudinal ribs (63a) (63b) (63c) and the first, second and third lateral ribs (60a) (60b) (60c) are projected to extend vertically and horizontally. The first, second and third central longitudinal ribs (63a) (63b) (63c) and the first, second and third lateral ribs (60a) (60b) (60c) are projected on the lower surface side . Facilitates simplification of the swing sorter (22) structure and improved rigidity. It is what it is.
[0022]
In particular, the first horizontal rib (60a) is provided between the left and right support arms (41), and the left and right vertical side ribs (62) (62) are provided between the left and right support arms (41) (41) and the vertical wall surface (61 ). Between the left and right vertical side ribs (62) (62) , the second, third and fourth horizontal ribs (60b) (60c) (60d) are connected to the first horizontal rib (60a) and the vertical wall surface (61). ) Are provided with first, second, and third central longitudinal ribs (63a), (63b), and (63c), respectively, and the first, second, and third central longitudinal ribs (63a), (63b), and (63c). The height of the first, second and third lateral ribs (60a) (60b) (60c) on the front end side is greater than the height of the vertical side rib (62) . the larger than the height of the central longitudinal rib (63a) (62b) (63c ), the rear end side of the fourth lateral rib (60d) high Formed to a height substantially the same vertical side ribs is (62), a substantially central position of the second lateral rib (60b), a gate for each Komu flowing resin in a substantially central position of the third central longitudinal rib (63c) The ribs 60a, 62, 60b, 60c, 60d, 63a, 63b, 63c and the bottom of the feed pan 25 are perpendicular to the vertical side ribs 62. By forming a circular arc surface or an inclination at the corner portion between the wall surface (61) and the first, second and third central longitudinal ribs (63a) (63b) (63c) and the vertical wall surface (61), respectively. The flow rate when the resin is poured can be increased to facilitate the resin to flow through every corner, and the molding can be performed smoothly. Can be prevented is to, enhance the strength and durability can be stabilized improve quality. In addition, it is possible to prevent the concentration of stress in the molded product and to improve the durability by distributing the force.
[Brief description of the drawings]
FIG. 1 is an explanatory view showing a molding process state of a swing sorter.
FIG. 2 is an overall side view of the combine.
FIG. 3 is an overall plan view of the combine.
FIG. 4 is a cross-sectional explanatory view of a threshing portion.
FIG. 5 is a side view of a rocking sorter.
FIG. 6 is a cross-sectional explanatory diagram of a swing sorter.
FIG. 7 is a cross-sectional side view of a swing sorter.
FIG. 8 is an explanatory plan view of a swing sorter.
FIG. 9 is an explanatory diagram of the bottom surface of the swing sorter.
FIG. 10 is a partial explanatory view of a swing sorter.
FIG. 11 is a partially enlarged view of a swing sorter.
[Explanation of symbols]
(6) Handling cylinder (22) Swing sorter (26) Operating chaff sheave (27) Glen sheave (38) Rear transfer rack (39) (40) Side wall (42) Chaff sheave fins (60a) to (60c) Horizontal rib (reinforcement) rib)
(63a) to (63c) Vertical rib (reinforcing rib)

Claims

A threshing / sorting device for a threshing machine in which a swing sorter (22) is installed below the barrel (6),
The feed pan (25) of the swing sorter (22), the rear transfer rack (38) connected to the rear part of the feed pan (25), and the grain sieve (connected to the rear part of the rear transfer rack (38)). 27), and the threshing sorter in which the feed pan (25), the rear transfer rack (38), and the left and right side walls (39) and (40) provided on the left and right sides of the grain sieve (27) are integrally formed of a synthetic resin,
A pair of left and right support arms (41) (41) integrally formed of synthetic resin are provided on the left and right sides of the bottom surface of the front end of the swing sorter (22), and a feed pan (25), a rear transfer rack (38), A vertical wall surface (61) is provided between the
Between the left and right support arms (41) (41) , the first lateral rib (60a)
Left and right vertical side ribs (62) (62) are provided between the left and right support arms (41) (41) and the vertical wall surface (61).
Between the left and right vertical side ribs (62) (62) , second, third and fourth horizontal ribs (60b) (60c) (60d) are provided.
Between the first transverse rib (60a) and the vertical wall surface (61), first, second and third central longitudinal ribs (63a) (63b) (63c) are provided,
The height of the first, second and third central longitudinal ribs (63a) (63b) (63c) is larger than the height of the longitudinal side ribs (62).
The height of the first, second and third lateral ribs (60a) (60b) (60c) on the front end side is higher than the height of the first, second and third central longitudinal ribs (63a) (62b) (63c). More than,
The height of the fourth lateral rib (60d) on the rear end side is substantially the same as the height of the vertical side rib (62),
Gates for pouring the resin are positioned at approximately the center position of the second lateral rib (60b) and approximately the center position of the third center longitudinal rib (63c), and the ribs (60a) (62) (60b). (60c), (60d), (63a), (63b), (63c), a corner portion between the bottom surface of the feed pan (25), a corner portion between the vertical side rib (62) and the vertical wall surface (61), first, second, A threshing sorter characterized in that arcuate surfaces or slopes are formed at the corner portions of the third central longitudinal ribs (63a) (63b) (63c) and the vertical wall surface (61), respectively.