JP3652631B2

JP3652631B2 - Threshing sorter

Info

Publication number: JP3652631B2
Application number: JP2001259078A
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: 2005-05-25
Anticipated expiration: 2015-07-21
Also published as: JP2002058326A

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】
そこで、本発明では、扱胴下方に揺動選別盤を設置させる脱穀機の選別装置において、揺動選別盤のグレンシーブ及び左右側壁とチャフシーブフィンを合成樹脂で成形加工し、左右側壁間にグレンシーブを一体形成し、しかも、揺動選別盤のフィードパンの後部にグレンパンを取付けるための段差状のグレンパン取付部を形成し、このフィードパンの段差部の前側をグレンパンの厚みよりも大きくしてフィードパンを段差部の前側で緩やかに盛上げる状態とした。
【０００４】
また、扱胴下方に揺動選別盤を設置させる脱穀機の選別装置において、揺動選別盤に設ける後方移送ラックをグレンシーブ前部に合成樹脂によって一体形成し、後方移送ラックに連結させるグレンシーブを揺動選別盤の左右側壁に樹脂一体形成によって設け、前記後方移送ラックとグレンシーブとの上方に、別体で、合成樹脂製の可動チャフシーブを取付け、しかも、揺動選別盤のフィードパンの後部にグレンパンを取付けるための段差状のグレンパン取付部を形成し、このフィードパンの段差部の前側をグレンパンの厚みよりも大きくしてフィードパンを段差部の前側で緩やかに盛上げる状態とした。
【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）を一体形成し、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と共に、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、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う。
【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）を突出形成すると共に、左右の縦サイドリブ（６２）間に３本の平行な横リブ（６０ｂ）（６０ｃ）（６０ｄ）を、また横リブ（６０ａ）と垂直壁面（６１）間に３本の平行な中央縦リブ（６３ａ）（６３ｂ）（６３ｃ）をそれぞれ形成し、サイドリブ（６２）より中央縦リブ（６３ａ）（６３ｂ）（６３ｃ）の高さを大に、また中央縦リブ（６３ａ）（６２ｂ）（６３ｃ）より前端側３本の横リブ（６０ａ）（６０ｂ）（６０ｃ）の高さを大に、さらに後端側の横リブ（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リブ（６０ｂ）（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、リブ（６０ｂ）（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】
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。
【００１８】
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。
【００１９】
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。
【００２０】
【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）を一体形成したもので、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容易に行うことができ、揺動選別盤（２２）の製造コスト低減などを容易に図ることができるものである。
【００２１】
また、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）を取付けたもので、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容易に行うことができるものである。
しかも、フィードパン（２５）の後部にグレンパン（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いる。そのため、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）可動チャフシーブ
（２７）グレンシーブ
（３８）後方移送ラック
（３９）（４０）側壁[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]
Therefore, in the present invention, in the threshing machine sorting apparatus in which the swing sorter is installed below the barrel , the granule sheave and the left and right side walls and the chaff sheave fin of the swing sorter are molded with synthetic resin, and the grain sheave is placed between the left and right side walls. A step-shaped gren pan mounting portion for mounting the gren pan is formed at the rear portion of the feed pan of the rocking sorter, and the front side of the step portion of the feed pan is made larger than the thickness of the glen pan to form the feed pan. Was gradually raised on the front side of the stepped portion.
[0004]
In addition, in a threshing machine sorting device in which a swing sorter is installed below the barrel, a rear transfer rack provided on the swing sorter is integrally formed with a synthetic resin at the front of the glensh and the grain sheave connected to the rear transfer rack is shaken. It is provided on the left and right side walls of the dynamic sorter by resin integral formation, and a movable chaff sheave made of synthetic resin is mounted separately above the rear transfer rack and the Glen sheave, and the Glen pan is placed at the rear of the feed pan of the swing sorter A stepped glen pan mounting portion for attaching the feed pan is formed, and the front side of the step portion of the feed pan is made larger than the thickness of the gren pan so that the feed pan is gently raised on the front side of the step portion.
[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 glensieve (27) is integrally formed between the left and right side walls (39), (40), so that a special fixing member for the glensieve (27) is not required. In a threshing machine sorting device that reduces the weight and simplifies processing and assembly, reduces the manufacturing cost of the rocking sorter (22), and installs the rocking sorter (22) below the handling cylinder (6). The rear transfer rack (38) provided on the swing sorter (22) is integrally formed by synthetic resin formation on the front part of the grain sheave (27), and the grain sheave (27) connected to the rear transfer rack (38) is provided as the swing sorter. 22) The left and right side walls (39) and (40) are integrally formed with resin, and the synthetic resin movable chaff sheave (26) is mounted above the rear transfer rack (38) and the Glen sheave (27) separately. Simplification of the front structure of the grain sheave (27) between the left and right side walls (39) and (40) of the swing sorter (22) and improvement of the strength are performed by integrally forming the rear transfer rack (38).
[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]
7 and 9, a lateral rib (60a) is formed between the left and right support arms (41) on the bottom surface of the sorting board (22), and between the feed pan (25) and the rear transfer rack (38). Left and right vertical side ribs (62) projecting between the vertical wall surface (61) and the support arm (41), and three parallel horizontal ribs (60b) (60c) ( 60d) and three parallel central longitudinal ribs (63a) (63b) (63c) are formed between the lateral rib (60a) and the vertical wall surface (61), respectively, and the central longitudinal rib (63a) is formed from the side rib (62). ) (63b) (63c) is increased in height, and the three horizontal ribs (60a) (60b) (60c) on the front end side from the central vertical ribs (63a) (62b) (63c) are increased in height. Further, the lateral rib (60d) on the rear end side is replaced with a side rib ( It is substantially equal to the height of 2). Then, gates (pouring gates) are provided at approximately two positions of the central positions (a) and (b) of the ribs (60b) and (63c) having high rib heights, and these ribs (60a) to (60d) (62) (63a). -(63c) is a large number, and by increasing the height, the flow rate when pouring the resin is increased, and the resin is spread throughout the entire area to facilitate the molding. . (Note that the gate is provided on the ribs (60b) and (63c) so that the lower mold (58) is turned upside down in FIG. 1 at the time of molding.) As a result, the molded product of the sorter (22) is formed. In addition, it is possible to prevent the occurrence of breaks in the resin and non-fused portions that are not integrally melted, and the quality and the quality can be stably improved by increasing the strength and durability.
[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]
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.
[0018]
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.
[0019]
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.
[0020]
【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 wall (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). Thus, it is possible to easily reduce the weight and simplify the processing and assembly, and to easily reduce the manufacturing cost of the swing sorter (22).
[0021]
In the threshing machine sorting apparatus in which the swing sorter (22) is installed below the handling barrel (6), the rear transfer rack (38) provided on the swing sorter (22) is combined with the front part of the grain sieve (27). Glen sieves (27) that are integrally formed of resin and connected to the rear transfer rack (38) are provided on the left and right side walls (39) and (40) of the swing sorter (22) by resin integrated formation, and the rear transfer rack (38). A movable synthetic chaff sheave (26) made of synthetic resin is mounted on the upper side of the groove sieve (27), and the grain sieve (27) between the left and right side walls (39), (40) of the swing sorter (22). ) Simplification of the front structure and improvement of the strength can be easily performed by integrally forming the rear transfer rack (38).
Moreover, a Glen pan (67) is separately attached to the rear portion of the feed pan (25). The rear portion of the feed pan (25) is formed into a low-profile Glen pan attachment portion (25a), and the attachment portion ( When the grain pan (67) is attached to 25a), the upper surfaces of the feed pan (25) and the grain pan (67) are substantially flush with each other, while the feed pan (25) (67) is a seam between the pans (25) and (67). 25) The front side of the stepped portion (25b) is formed to have a stepped dimension (f) that is larger than the thickness (e) of the Glen pan (67), and the feed pan (25) is gently raised on the front side of the stepped portion (25b). I am letting you. For this reason, it is possible to promote smooth flow without the object to be sorted from the feed pan (25) to the grain pan (67).
[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) Handle (22) Swing sorter (26) Movable chaff sheave (27) Glen sheave (38) Rear transfer rack (39) (40) Side wall

Claims

In the sorting device of the threshing machine in which the swing sorter (22) is installed below the handling barrel (6), the grain sieve (27) and the left and right side walls (39) (40) of the swing sorter (22) and the chaff sheave fin (42 ) Is molded with a synthetic resin, and a grain sieve (27) is formed integrally between the left and right side walls (39), (40) , and the rear part of the feed pan (25) of the swing sorter (22) has a grain pan (67). A stepped glen pan mounting portion (25a) is formed, and the feed pan (25) is stepped by making the front side of the step portion (25b) of the feed pan (25) larger than the thickness of the gren pan (67). A threshing sorter characterized in that it is in a state of being gently raised on the front side of the section (25b) .

In the threshing machine sorting device in which the swing sorter (22) is installed below the handling barrel (6), the rear transfer rack (38) provided on the swing sorter (22) is made of synthetic resin at the front part of the grain sieve (27). A grain sheave (27) that is integrally formed and connected to the rear transfer rack (38) is provided on the left and right side walls (39), (40) of the swing sorter (22) by integral resin, and the rear transfer rack (38) and the grain sheave are provided. (27) A separate synthetic resin movable chaff sheave (26) is mounted above (27), and a Glen pan (67) is mounted at the rear of the feed pan (25) of the swing sorter (22). A step-shaped Glen pan mounting portion (25a) is formed, and the feed pan (25) is stepped by making the front side of the step portion (25b) of the feed pan (25) larger than the thickness of the Glen pan (67). Threshing sorting apparatus being characterized in that the gently excitement state the front side parts (25b).