JP5488686B2

JP5488686B2 - Threshing device

Info

Publication number: JP5488686B2
Application number: JP2012289218A
Authority: JP
Inventors: 釘宮　　啓
Original assignee: Iseki and Co Ltd
Current assignee: Iseki and Co Ltd
Priority date: 2012-12-29
Filing date: 2012-12-29
Publication date: 2014-05-14
Anticipated expiration: 2025-03-29
Also published as: JP2013081474A

Description

この発明は、脱穀装置に関する。 The present invention relates to a threshing apparatus.

従来から、この種の脱穀装置は、脱穀処理した脱穀物を穀粒とその他の排塵物とに選別分離するために、上側に扱室や二番処理室、更には、排塵処理室を配置し、その下側に選別室を設けて構成している。そして、揺動選別装置は、選別室において、上側に設けられ、前記各脱粒処理室から漏下、乃至は落下した被選別物を揺動作用と、唐箕から送られてくる選別風の風選作用とによって選別する構成としている。
そして、上記揺動選別装置は、通常、選別方向の上手側から移送棚、チャフシーブ、ストローラックの順番に配置して一番粒、二番物、排塵物の順番に選別、分離する構成としている。
そして、従来公知の脱穀装置として、例えば、特許文献１に開示されたものがある。 Conventionally, this type of threshing device has a handling chamber, a second processing chamber, and a dust disposal chamber on the upper side in order to selectively separate the threshed threshing into grains and other dusts. It is arranged and a sorting room is provided below it. The oscillating sorting device is provided on the upper side in the sorting chamber, and swings the to-be-sorted material that has leaked or dropped from each of the degreasing treatment chambers, and the wind selection of the sorting wind sent from the Karatsu. The structure is selected according to the action.
The swing sorting device is usually arranged in the order of transfer shelf, chaff sheave, stroller from the upper side in the sorting direction, and sorts and separates in the order of the first grain, the second thing, and the dust. Yes.
And as a conventionally well-known threshing apparatus, there exist some which were disclosed by patent document 1, for example.

特開平９−２４８０４８号公報Japanese Patent Laid-Open No. 9-248048

従来の脱穀装置では、扱室の出口側で穀粒の混入した排塵物が多くなり、四番ロスを低減することができず、機外損失となる問題があった。 In the conventional threshing device, there is a problem that the amount of dust mixed with the grain increases on the exit side of the handling room, and the fourth loss cannot be reduced, resulting in an external loss.

この発明は、上述の課題を解決するために、次の技術的手段を講じる。
即ち、請求項１記載の発明は、前板（４６）と後板（４７）の間に扱胴（１８）を軸架した扱室（１５）と排塵処理室（１７）とが連通口（２３）で連通され、前記扱室（１５）の下側には揺動選別棚（３）を有した選別室（２）が配置され、前記扱室（１５）の横側には扱口（２１）が開口された脱穀装置において、前記扱室（１５）における連通口（２３）よりも後側の部位に、扱胴（１８）後端部の扱歯（１９）によってささり粒を回収するささり粒回収室（５６）が形成され、前記扱口（２１）の上側に配置されるとともに前記前板（４６）と後板（４７）とに架け渡されるフレーム（４８）を備え、前記扱室（１５）とささり粒回収室（５６）との間を仕切る仕切板（５５）が、扱胴（１８）の上方を覆い、上方へオープン回動可能な扱胴カバー（４３）の下面に取り付けられた第１仕切板（５５ａ）と、前記フレーム（４８）に取り付けられた第２仕切板（５５ｂ）との接合によって形成され、フィードチエン（２０ｂ）で搬送される穀稈を前記扱口（２１）の始端部から終端部に亘って上側から押圧する板体（４０）の基部が、前記扱胴カバー（４３）に取り付けられ、板体（４０）は、前記フレーム（４８）よりも外側に配置され、前記フレーム（４８）には、先端側を扱胴（１８）側へ延伸させた送塵ガイド板（４４）の基部が取り付けられていることを特徴とする脱穀装置としたものである。
また、請求項２記載の発明は、前記揺動選別棚（３）は、選別方向の上手側から移送棚（４）とプレシーブ（５）とチャフシーブ（６）とストローラック（７）とをこの順に配置して構成し、前記プレシーブ（５）に備える各第１シーブプレート（５ａ，５ｂ，５ｃ）は、チャフシーブ（６）に備える各第２シーブプレート（６ａ，６ｂ，６ｃ）に比較して各シーブプレート間の選別ピッチ（Ｐ）を狭く形成すると共に上下幅（Ｈ）も短くし、各第１シーブプレート（５ａ，５ｂ，５ｃ）の下部を枢着した第１回動連結板（９）と、各第２シーブプレート（６ａ，６ｂ，６ｃ）の下部を枢着した第２回動連結板（３１）とを連動ロッド（３７）で連結し、第１シーブプレート（５ａ，５ｂ，５ｃ）と第２シーブプレート（６ａ，６ｂ，６ｃ）とが連動して回動するときに、第１シーブプレート（５ａ，５ｂ，５ｃ）の回動によるプレシーブ（５）の開度調節範囲が第２シーブプレート（６ａ，６ｂ，６ｃ）の回動によるチャフシーブ（６）の開度調節範囲よりも大きくなる構成とし、前記第２回動連結板（３１）側の係合ピン（３９）を連動ロッド（３７）に設けた複数の調整孔（３８ａ，３８ｂ，３８ｃ）に差し替えることで、第１シーブプレート（５ａ，５ｂ，５ｃ）と第２シーブプレート（６ａ，６ｂ，６ｃ）の相対的な角度関係を調節可能な構成とした請求項１記載の脱穀装置としたものである。 In order to solve the above-mentioned problems, the present invention takes the following technical means.
That is, according to the first aspect of the present invention, the handling chamber (15) in which the handling cylinder (18) is pivoted between the front plate (46) and the rear plate (47 ) and the dust disposal chamber (17) are connected to each other. (23), a sorting chamber (2) having a swing sorting shelf (3) is disposed below the handling chamber (15), and a handling port is provided on the side of the handling chamber (15). In the threshing apparatus in which (21) is opened, the small grains are collected by the tooth handling (19) at the rear end of the treatment cylinder (18) at the rear side of the communication port (23) in the treatment room (15). A small grain recovery chamber (56) is formed, and includes a frame (48) disposed above the handling port (21) and spanned between the front plate (46) and the rear plate (47), threshing chamber (15) and sticks particle recovery chamber (56) and a partition plate that partitions between the (55), have covered the upper threshing drum (18), open pivoted Allowed upward First partition plate attached to a lower surface of a threshing drum cover (43) and (55a), formed by the junction between the second partition plate attached to said frame (48) (55b), a feed chain (20b) The base of the plate body (40) that presses the cereals conveyed in the above from the upper end to the end of the handle (21) is attached to the handle cover (43), and the plate (40 ) Is disposed outside the frame (48), and the frame (48) is attached with a base of a dust feed guide plate (44) having a distal end extending toward the handle cylinder (18). The threshing device is characterized by this.
In the invention according to claim 2, the swing sorting shelf (3) is configured such that the transfer shelf (4), the pre-sheave (5), the chaff sheave (6), and the stroll rack (7) are arranged from the upper side in the sorting direction. The first sheave plates (5a, 5b, 5c) provided in the pre-sheave (5) are arranged in order, and compared with the second sheave plates (6a, 6b, 6c) provided in the chaff sheave (6). The first rotating connecting plate (9) is formed by narrowing the selection pitch (P) between the sheave plates and shortening the vertical width (H) and pivotally attaching the lower portion of each first sheave plate (5a, 5b, 5c). ) And a second rotating connecting plate (31) pivotally attached to the lower portion of each second sheave plate (6a, 6b, 6c) by an interlocking rod (37), and the first sheave plate (5a, 5b, 5c) and second sheave plate (6a, 6b, 6c) When the first sheave plate (5a, 5b, 5c) rotates, the opening adjustment range of the pre-sheave (5) depends on the rotation of the second sheave plate (6a, 6b, 6c). A plurality of adjustment holes (38a, 38a, 38) having an engagement pin (39) on the side of the second rotation connecting plate (31) provided in the interlocking rod (37) are configured to be larger than the opening adjustment range of the chaff sheave (6). 38b, 38c), the relative angular relationship between the first sheave plate (5a, 5b, 5c) and the second sheave plate (6a, 6b, 6c) is adjustable. This is a threshing device.

請求項１に記載の発明によれば、扱室（１５）とささり粒回収室（５６）との間を仕切る仕切板（５５）が、扱胴（１８）の上方を覆う扱胴カバー（４３）の下面に取り付けられた第１仕切板（５５ａ）と、扱口（２１）の上側のフレーム（４８）に取り付けられた第２仕切板（５５ｂ）との接合によって形成されるので、扱室（１５）とささり粒回収室（５６）とを充分に仕切ることができ、扱室（１５）内の穀粒の混入した排塵物が、仕切板（５５）で止められて連通口（２３）から排塵処理室（１７）へ供給され、ささり回収室（５６）には送られにくくなるので、四番ロスが減少し、機外損失を低減することができる。
また、板体（４０）が設けられていることで、搬送穀稈を層状にして案内することができ、扱胴カバー（４３）を上方へオープン回動させた場合に、板体（４０）を扱胴カバー（４３）と一体で上方へ移動させることができる。
請求項２に記載の発明によれば、請求項１に記載の発明による効果に加え、プレシーブ（５）が、チャフシーブ（６）に送る前の脱穀物中の単粒化されている穀粒を予備選別によって抜き取って、チャフシーブ（６）に送る被選別物の総量を少なくし、チャフシーブ（６）に過度な選別負担を与えないで、本来の選別作用を充分に行わせることができる。そして、このプレシーブ（５）は、従来の移送棚の後端部位に設けているから、チャフシーブ（６）の選別面積を狭めることなく、予備選別を行うプレシーブ（５）を装置してチャフシーブ（６）の負担を大幅に軽くし、揺動選別棚（３）全体として選別精度を向上させることができる。また、プレシーブ（５）によってチャフシーブ（６）の上手で予備選別を行うことで条件適応性が拡大し、プレシーブ（５）のほうがチャフシーブ（６）よりも選別工程の上手寄りにあるために、プレシーブ（５）から下手側への選別工程が長くなるので、プレシーブ（５）がチャフシーブ（６）よりも大きく開いた場合や逆に閉まった場合でも風選別作用を充分に受けることができる。そして、プレシーブ（５）とチャフシーブ（６）の相対的な角度関係を調節することができる。 According to invention of Claim 1, the partition plate (55) partitioning between the handling chamber (15) and the small grain recovery chamber (56) covers the handling cylinder cover (43) above the handling cylinder (18). ) And the second partition plate (55b) attached to the upper frame (48) of the handling port (21). (15) and the small grain recovery chamber (56) can be sufficiently partitioned, and the dust collected in the handling chamber (15) is stopped by the partition plate (55) and connected to the communication port (23 ) Is supplied to the dust disposal chamber (17) and is not easily sent to the recovery chamber (56), so that the fourth loss is reduced and the loss outside the machine can be reduced.
In addition, since the plate body (40) is provided, the transported cereal can be guided in layers, and the plate body (40) when the handling cylinder cover (43) is opened and rotated upward. Can be moved upward together with the barrel cover (43).
According to the invention described in claim 2, in addition to the effect of the invention described in claim 1, the pre-sheave (5) removes the cerealized grain during threshing before sending it to the chaff sheave (6). It is possible to sufficiently perform the original sorting action without reducing the total amount of the objects to be sorted and sent to the chaff sheave (6) by preliminarily sorting and without giving an excessive sorting burden to the chaff sheave (6). Since the pre-sheave (5) is provided at the rear end portion of the conventional transfer shelf, the pre-sheave (5) for pre-selection is provided without reducing the selection area of the chaff sheave (6). ) Can be greatly reduced, and the sorting accuracy of the swing sorting shelf (3) can be improved as a whole. In addition, preselection (5) increases preconditioning of the chaff sheave (6) so that the condition adaptability is expanded, and the preceive (5) is closer to the selection process than the chaff sheave (6). Since the sorting process from (5) to the inferior side becomes longer, the wind sorting action can be sufficiently received even when the pre-sheave (5) opens larger than the chaff sheave (6) or closes. The relative angular relationship between the pre-sheave (5) and the chaff sheave (6) can be adjusted.

揺動選別棚の一部でプレシーブとチャフシーブとの側断面図Side cross-sectional view of pre-sheave and chaff sheave in part of swing sorting shelf プレシーブのピン部分の拡大正面図Enlarged front view of the pin part of the pre-shebe 脱穀機（脱穀装置）の切断正面図Cutting front view of threshing machine (threshing device) 脱穀機の内部でチャフシーブの取り付け状態の正面図Front view of chaff sheave attached inside threshing machine 脱穀機の内部を示す側面図Side view showing the inside of a threshing machine 脱穀機の内部を示す側面図Side view showing the inside of a threshing machine シーブプレートの角度調節の作用図Action diagram of sheave plate angle adjustment 脱穀機の内部を示す側面図Side view showing the inside of a threshing machine 扱室内部を示す正面図Front view showing the inside of the handling room 扱室内部の一部拡大正面図Partially enlarged front view of the interior of the room 扱室内部の一部拡大正面図Partially enlarged front view of the interior of the room 扱室内部の側面図Side view of the inside of the handling room 扱室内部の正面図Front view of the interior of the room 扱室内部の正面図Front view of the interior of the room 扱室内部の側面図Side view of the inside of the handling room

この出願の発明は、以下に、実施例を具体的に説明するが、主として脱穀機（脱穀装置）１の選別室２に、揺動自由に設けた揺動選別棚３に関し、チャフシーブ６のすぐ前側にプレシーブ５を設けて、扱室１５などから漏下してきた脱穀物の予備選別を行う構成としている。そして、プレシーブ５は、単粒化している穀粒を一挙に選別して、後続するチャフシーブ６に送る脱穀物（被選別物））の総量を大幅に減らして、チャフシーブ６の選別負担を軽減し、脱穀処理を高能率にしたときでもチャフシーブ６の選別精度を高め、極力、二番物や排塵物への穀粒の混入量を少なくして機外損出を減らすものである。
そして、プレシーブ５は、移送棚後端部位に設け、チャフシーブ６の選別面積を縮小するものではなく、チャフシーブ６に比較すると各シーブプレート（第１シーブプレート）間の選別ピッチを狭くし、上下の板幅も短くしてごく小型に構成している。
このようにして、この発明は、脱穀機の処理能力と選別精度を高めて、穀粒の機外飛散を少なくして、高性能の脱穀機を提供するものである。
以下、実施例を図面に基づいて具体的に説明する。
まず、脱穀機１は、図５に示すように、上側に扱室１５、及び二番処理室１６と排塵処理室１７とを設け、下側に選別室２を配置して構成している。そして、扱室１５は、図面に示すように、長手方向に扱胴１８を軸架して設け、該扱胴１８の前側には、穀稈の穂部側を扱室１５に挿入する扱口２１（図３参照）を長手方向に沿わせて開口した構成としている。そして、前記扱胴１８は、従来から周知のとおり、外周に多数の扱歯１９，１９を設けるが、その場合、扱歯１９，１９に回転に伴って脱穀作用と脱穀物を扱室１５の下手側に送る送塵作用との機能を与えるように配列した構成としている。
そして、穀稈挟持搬送装置２０は、図３、及び図５に示すように、前記扱口２１の外側において、穀稈の搬送方向に沿わせて、上側に挟持杆２０ａと下側にフィードチエン２０ｂとを設け、穀稈の株元側を上下から挟持して穂先側を前記扱口２１から扱室１５に挿入した状態で脱穀しながら搬送する構成としている。
そして、選別室２は、図５で解るように、上側に、脱穀物の選別方向に沿わせて揺動選別棚３を揺動自由に支持して設けている。そして、該揺動選別棚３は、選別方向の上手側から移送棚４、プレシーブ５、チャフシーブ６、ストローラック７の順に配置して構成している。そして、実施例の場合、図５に示すように、前部の移送棚４とプレシーブ５とチャフシーブ６の始端部分とを、扱室１５、及び二番処理室１６の下方に位置させて配置した構成としている。なお、チャフシーブ６は、その始端部が、前記扱室１５の終端部分で排塵処理室１７への連通路２３の下方に位置する構成にしている。そして、前記プレシーブ５は、そのすぐ下手側（選別方向）に配置したチャフシーブ６に比較すると、図１から解るように、各シーブプレート（第１シーブプレート）５ａ，５ｂ，５ｃ間の選別ピッチＰを狭くし、上下幅Ｈも短くした小型の装置に構成している。
そして、前記プレシーブ５は、図１、乃至図３に示すように、各シーブプレート５ａ，５ｂ，５ｃの側部に取り付ける上側の回動支点ピン（第１回動支点ピン）８と、回動連結板（第１回動連結板）９に接続するために取り付ける下側の接続ピン（第１接続ピン）１０とは、ピンホルダ２４に差し込んで取り付けた構成としているが、この場合、回動支点ピン８と接続ピン１０とは、一本の鋼材を素材として曲げ加工により上下一体のコ字状に構成している。そして、プレシーブ５は、図１、乃至図３に示すように、揺動選別棚３の両側の側板３ａ，３ｂに、上側に回動支点孔２５と下側に調節長孔２６とを設けて、それぞれに回動支点ピン８と回動連結板９に接続した接続ピン１０を通して傾斜角度を調節して選別ピッチＰを選択調節できる構成としている。
そして、実施例の場合、回動連結板９は、図１に示すように、締め付けと緩めができるロックねじ２７によって移動調節ができる構成としている。
つぎに、チャフシーブ６は、図１、及び図４に示すように、各シーブプレート（第２シーブプレート）６ａ，６ｂ，６ｃの側端部分に設ける回動支点ピン（第２回動支点ピン）１１と接続ピン（第２接続ピン）１２を樹脂素材の成型加工によって取付用支持部１３の上下に一体構成として、取り付けている。この場合、取付用支持部１３は、図４に示すように、各シーブプレート６ａ，６ｂ，６ｃの両側から側端部に差し込んで連結し、上下のピン１１，１２を取り付ける構成としている。
そして、前記プレシーブ５のシーブプレート５ａ，５ｂ，５ｃに取り付けた回動支点ピン８と接続ピン１０とは、チャフシーブ６の各シーブプレート６ａ，６ｂ，６ｃの回動支点ピン（第２回動支点ピン）１１、及び接続ピン１２のピン径（ａ）より小径に構成しており、そのために、樹脂素材では強度上適さないから、前記の通り、鋼材を使用している。
以上のように、プレシーブ５は、チャフシーブ６の選別方向の上手側に配置して、移送棚４から送られた脱穀物の予備選別ができる構成にしているから、チャフシーブ６に達する前の脱穀物から、既に脱粒されて単粒化している穀粒を選別して下方に分離し、被選別物の総量を少なくすることができる。したがって、チャフシーブ６は、従来のように過度の選別負担を負うことが少なくなり、本来の選別能力を充分に発揮しながら選別作用ができるもので、選別能率は勿論のこと、選別の精度も大幅に向上することができた。
そして、実施例の場合、プレシーブ５は、従来の移送棚の後端部位に相当する位置に設けているから、チャフシーブ６の選別面積を狭めるものではなく、上述の如く、予備選別を行うプレシーブ５を装置することで、チャフシーブ６の負担を大幅に軽くし、揺動選別棚３全体として選別精度を向上することができた。
そして、実施例の場合、プレシーブ５をチャフシーブ６に比較すると、図１から解るように、シーブプレート５ａ，５ｂ，５ｃの上下長さ（幅）を短くして選別ピッチＰも狭くして全体としてチャフ側より小型にすることによって、図２、及び図３に示すように、回動支点ピン８を受ける棚３の側板３ａ，３ｂに開孔した回動支持孔２５と接続ピン１０の調節長孔２６を狭くすることが可能で、大きな孔を必要としないから前記側板３ａ，３ｂの頑丈さが保て、全体として小型に構成できる利点がある。
更に、実施例のチャフシーブ６は、図４に示すように、樹脂素材からなる取付用支持部１３の上下に両ピン１１，１２を一体成型したから、全体の軽量化が図られ、しかも、比較的低コストで生産できる特徴もある。そして、プレシーブ５は、既に述べたように、回動支点ピン８と接続ピン９との線径が細いから、樹脂素材から成型加工する手段では強度上適さないが、鋼材（実施例ではピアノ線）の曲げ加工によって製作すると、これは線径が細くても充分の強度が確保できるから、耐久性においても調節操作上も全く支障なく円滑に調節ができるものとなった。
そして、チャフシーブ６は、図１、及び図４に示すように、揺動選別棚３の両側板３ａ，３ｂに、上側の回動支点ピン１１を回動自由に枢着し、下側の接続ピン１２を調節長孔３０内を通して回動連結板（第２回動連結板）３１に連結し、更に、その回動連結板３１を、回動アーム３２、調節ワイヤー３３に連結して角度調節（選別間隔調節）を可能に構成している。
このように、実施例のチャフシーブ６は、図１、図２、図３、及び図５に示すように、角度調節をプレシーブ５とは独立して別々に行う構成にしたから、麦の場合や穀粒流量が少量の場合、プレシーブを閉じて、チャフ側を開いて漏下させながら選別することが可能であり、又、脱穀作業を高能率にして脱粒容易な品種では、プレシーブ５の開度を大きくして充分な予備選別をすることが可能で、チャフシーブ６の選別負担を軽くできる。
そして、脱穀機１は、図５に示すように、フィードチエン２０ｂ側の側板に掃除口３５を開口しているから、これを利用して前記プレシーブ５のロックねじ２７を操作してシーブプレート５ａ，５ｂ，５ｃの角度調節操作ができる特徴がある。
つぎに、プレシーブ５とチャフシーブ６とを後述する連動構成によって、一体調節を可能として、調節操作の簡略化を図った実施例を説明する。
この場合、プレシーブ５とチャフシーブ６とは、図６に示すように、両方の回動連結板９、３１とを連動ロッド３７で連結して連動調節可能に構成している。そして、連動ロッド３７は、図６に示すように、複数の調整孔３８ａ，３８ｂ，３８ｃを設け、係合ピン３９の抜き差しにより、両者の相対的な角度の関係を調整することができる構成にしている。
なお、この調整操作は、既に説明した脱穀機１の側板に開口している掃除口３５を開けて行うことができる。
そして、プレシーブ５とチャフシーブ６とは、図７に作用図で示すように、連動ロッド３７で連結して、チャフ側の回動アーム３２、調節ワイヤー３３を介して外部から調節すると、両方の回動連結板９，３１を介して両方のシーブプレート５ａ，５ｂ，５ｃ，６ａ，６ｂ，６ｃが同時に連動し角度が調節される。そのとき、図７に示すように、プレシーブ５側のシーブプレート５ａの回動角θ1が、チャフシーブ６側のシーブプレート６ａの回動角度θ2より大きくなり、開度の調節範囲が大きくなる構成となっている。
このように構成したプレシーブ５とチャフシーブ６とは、連動調節して選別ピッチを変えて選別作業を行うと、プレシーブ５の方がチャフ側に比較して、常に、極端に閉まり、極端に開くことになるが、開いた場合でも、逆に、閉まった場合でも、プレシーブ５が選別工程の前寄りにあって、後方の選別作用工程が長いから、その間で充分に風選作用等を受けて悪影響が出ることはほとんどない。
それよりも、プレシーブ５は、チャフに対して予備選別を行う作用が大きく、各種の条件適応性が拡大し、既に述べたように、チャフシーブ６の前で予備選別を行う特有の機能を発揮できる優れた利点がある。
つぎに、脱穀機１の扱室１５について、内部の具体的な構成を実施例ごとに図面に基づいて説明する。
まず、抵抗板（板体）４０は、図８、及び図９に示すように、挟持杆２０ａの内側において、基部を扱室内側案内板４１と挟持杆取付台４２とに接続して取り付け、前記扱口２１の始端部から終端部に渡り搬送穀稈を上側から押圧しながら層状にして案内するように構成している。そして、実施例の場合、穀稈挟持搬送装置２０と抵抗板４０は、図８に示すように、略水平状態に軸架されている前記扱胴１８に対して、右側（搬送終端側）上がりに形成されている扱口２１に沿わせて、順次右上がりに設けた構成としている。そして、抵抗板４０は、図９の仮想線で示すように、従来から公知の構成と同様に扱胴カバー４３を上方にオープン回動するとき、挟持杆２０ａと共に上方に一体となって上がる構成となっている。
つぎに、送塵ガイド板４４は、図８、及び図９に示すように、側面視で長方形状の板体に形成し、右端部分、すなわち、扱室１５の出口に近い部分では、上記抵抗版４０の下縁形状に合わせて、斜めに切上部を形成し、中間部位から先端部に至る範囲に、扱歯１９，１９が通過できる程度の幅のしごき溝４５，４５を長手方向に櫛状に連続して設け、後部を板状案内部４４ａに構成している。そして、送塵ガイド板４４は、図９に示すように、上記抵抗板４０の内側において、脱穀機１の枠組みを構成している前板４６と後板４７とに架渡して設けた取付フレーム（フレーム）４８に基部を取り付け、先端側を扱胴１８方向に延長して構成している。そして、送塵ガイド板４４は、図面に示すように、先端側を前記扱歯１９，１９の回転圏内に入り込ませ、扱歯１９，１９が前記しごき溝４５、４５内を通過する位置まで扱胴１８に接近させて設けた構成（前板から中板までの間）とし、後部の板状案内部４４ａは、図１１に示すように、扱歯１９，１９の回転圏内から外側に位置させて構成（中板から後板までの間）している。
そして、切刃（第１切刃）５０は、図１０に示すように、前記取付フレーム４８に取り付けるが、その場合、前記送塵ガイド板４４を上側にして取付フレーム４８をサンドイッチ状に挟んで共締めにして固定している。そして、切刃５０は、図１０から解るように、扱歯１９の回転圏内に臨ませて配置し、扱歯19の回転方向に対して後退角を与えて構成している。
この構成によって、切刃５０は、扱歯１９によって持ち回られてくる未処理物を、比較的小さい消費馬力で適確に切断して送塵ガイド板４４上に落し、更に、送塵ガイド板４４は、しごき溝４５，４５によって扱歯１９，１９からしごき取った枝梗付着粒や藁屑（穀粒が混入したものが多い）を、扱室１５内の抵抗を増加することなく、搬送穀稈の株元から遠ざける扱胴１８側に案内することができ、４番ささり粒を大幅に減らすことができる。このとき、切刃５０が切断した切断物は、送塵ガイド板４４のガイド面（しごき溝４５としごき溝４５との間の板の部分）上に案内されて穀稈株元から遠い扱胴１８側へ案内される。そして、上記取付フレーム４８は、図１０に示すように、上部を、上側の扱室内側案内板４１を伝わって流下する未処理物を受け取るように接近させ、更に、傾斜案内面４８ａを形成し、未処理物を切刃５０に誘導できる構成としている。
そして、取付フレーム４８は、図１０に示すように、下端縁を内部の切刃５０側に折り曲げて回止め部４８ｂを形成し、切断作用が適確にできるようにしている。
つぎに、仕切板５５について説明する。
まず、仕切板５５は、図１２、及び図１３に示すように、扱室１５と排塵処理室１７との連通口２３の出口側と、それより更に出口側に位置するささり粒回収室５６との間において、扱胴１８の上方部分から扱口２１に近い部位までを仕切って隔離した構成としている。この実施例に係る仕切板５５は、図面に示すように、扱胴カバー４３に取り付けた上部仕切板（第１仕切板）５５ａと、取付フレーム４８に取り付けた下部仕切板（第２仕切板）５５ｂとの上下２枚から構成している。そして、上部仕切板５５ａと下部仕切板５５ｂとは、接合部分でラップさせて構成している。
このように構成すると、扱室１５の排塵物は、扱胴１８の上方が上記仕切板５５で堰き止められた状態で、排塵処理室１７に送塵されるべき排塵物が出口側のささり粒回収室に送られるのが止められる。そして、これらの排塵物は、連通口２３を経由してほとんどが排塵処理室１７に供給される。したがって、出口側のささり粒回収室５６は、穀粒の混入した排塵物（塵埃）が少なくなり、機外損失となる四番ロスを大幅に低減することができる効果がある。更に、仕切板５５は、扱胴カバー４３に取り付けた上部と、切刃５０や排塵ガイド板４４を取り付ける取付フレーム４８を利用して取り付けた下部との２枚分割構成にしたから、前側の下部仕切板５５ｂを扱胴１８の軸芯近くまで設けられるから、充分に仕切りができるものとなった。更に、上記仕切板５５は、上部５５ａの下縁部分と下部５５ｂの上縁部分との接合部をラップさせて構成しているから、処理物を挟むことがほとんどなくなり、詰まるおそれもない特徴がある。
つぎに、図１４、及び図１５に示すように、既に説明した送塵ガイド板４４の上側に配置した切刃５０に加えて扱室１５の奥側にある網枠５７の上側にも切刃（第２切刃）５８を配列して設けた別の実施例について説明する。
まず、切刃５８は、図１４、及び図１５に示すように、前板４６と後板４７との間に架渡して設けた取付フレーム６０に取り付けて設け、高い位置において、網枠５７の上側に配列して設け、扱胴１８が扱歯１９，１９によって持ち回っている脱穀物を切断する構成としている。そして、この場合、切刃５８は、図１４に示すように、既に説明した前側の切刃５０より高い位置にあり、しかも、図１５に示すように、異なる切断ライン上に配列して切刃５０と別のラインを持ち回られている脱穀物を切断できる配置に構成している。
このように構成すると、扱室１５は、前側と、後側とにそれぞれ切刃５０、５８とを取り付ける取付フレーム４８、６０を架渡して構成したから、枠組みの剛性が増して頑丈な構成になった特徴がある。そして、扱室１５は、両方の切刃５０，５８とを高い位置に設けたから、受網６１の張設範囲が広くなり、室内の選別漏下面積が拡大した付随的な効果がある。
そして、切刃５８，５０は、扱室１５内部に増やすことで、扱胴１８が扱歯１９，１９にひっかけて持ち回る未処理物を適確に切断して、脱粒、及び選別効果を高め、穀粒の機外ロスを減少させる特徴があり、特に、雨天時などの湿材を処理する悪条件下の脱穀作業でも扱室１５内での異音の発生を従来よりはるかに少なくなる効果がある。 The invention of this application will be described in detail below with reference to an embodiment. The present invention relates to a swing sorting shelf 3 which is provided in a sorting chamber 2 of a threshing machine (threshing device) 1 so as to freely swing. A pre-sheave 5 is provided on the front side to preliminarily sort out cereal grains that have leaked from the handling chamber 15 or the like. The presieve 5 sorts the grains that have been made into one grain at a time, greatly reduces the total amount of cereals (subjects) to be sent to the subsequent chaff sheave 6, and reduces the sorting burden of the chaff sheave 6. Even when the threshing process is made highly efficient, the sorting accuracy of the chaff sheave 6 is increased, and the amount of grains mixed in the second and dusty substances is reduced as much as possible to reduce the loss outside the machine.
The pre-sheave 5 is not provided at the rear end portion of the transfer shelf, and does not reduce the sorting area of the chaff sheave 6. Compared with the chaff sheave 6, the sorting pitch between the sheave plates (first sheave plates) is narrowed. The plate width is also shortened to make it extremely compact.
In this way, the present invention provides a high-performance threshing machine by increasing the processing capacity and sorting accuracy of the threshing machine, reducing the scattering of the grains outside the machine.
Hereinafter, an example is described concretely based on a drawing.
First, as shown in FIG. 5, the threshing machine 1 is configured such that a handling chamber 15, a second processing chamber 16 and a dust removal processing chamber 17 are provided on the upper side, and a sorting chamber 2 is disposed on the lower side. . As shown in the drawing, the handling chamber 15 is provided with a handling cylinder 18 mounted in the longitudinal direction, and a handling port for inserting the ear part of the cereal into the handling chamber 15 on the front side of the handling cylinder 18. 21 (see FIG. 3) is open along the longitudinal direction. The handling cylinder 18 is provided with a large number of teeth 19, 19 on the outer periphery as is well known in the art. In this case, the threshing action and threshing of the handling chamber 15 are carried out as the teeth 19, 19 rotate. The structure is arranged so as to give the function of sending dust to the lower side.
As shown in FIGS. 3 and 5, the culm clamping / conveying device 20 is arranged on the outer side of the mouthpiece 21 along the conveying direction of the culm, with the clamping jar 20 a on the upper side and the feed chain on the lower side. 20b is provided, and the stocker side of the cereal is sandwiched from above and below and the tip side is conveyed while threshing in a state of being inserted into the handling chamber 15 from the handling port 21.
As shown in FIG. 5, the sorting chamber 2 is provided with a swing sorting shelf 3 on the upper side so as to swing freely along the sorting direction of grain removal. The swing sorting shelf 3 is configured by arranging the transfer shelf 4, the pre-sheave 5, the chaff sheave 6, and the stroll back 7 in this order from the upper side in the sorting direction. In the case of the embodiment, as shown in FIG. 5, the front transfer shelf 4, the pre-sheave 5, and the start end portion of the chaff sheave 6 are disposed below the handling chamber 15 and the second processing chamber 16. It is configured. In addition, the chaff sheave 6 has a configuration in which the start end portion is located below the communication path 23 to the dust removal treatment chamber 17 at the end portion of the handling chamber 15. The pre-sheave 5 is compared with the chaff sheave 6 disposed on the lower side (selecting direction) thereof, as shown in FIG. 1, the selecting pitch P between the sheave plates (first sheave plates) 5a, 5b, 5c. Is made small and the vertical width H is also shortened.
As shown in FIGS. 1 to 3, the pre-sheave 5 is pivoted with an upper pivot fulcrum pin (first pivot fulcrum pin) 8 attached to the side portion of each sheave plate 5a, 5b, 5c. The lower connection pin (first connection pin) 10 attached to connect to the connection plate (first rotation connection plate) 9 is configured to be inserted into the pin holder 24, and in this case, the rotation support point. The pin 8 and the connection pin 10 are configured in a U-shape integrally formed by bending a single steel material as a raw material. As shown in FIGS. 1 to 3, the pre-sheave 5 is provided with a pivot fulcrum hole 25 on the upper side and an adjustment long hole 26 on the lower side on the side plates 3 a and 3 b on both sides of the swing sorting shelf 3. The selection pitch P can be selected and adjusted by adjusting the inclination angle through the connection pin 10 connected to the rotation fulcrum pin 8 and the rotation connecting plate 9 respectively.
And in the case of an Example, as shown in FIG. 1, the rotation connection board 9 is set as the structure which can adjust movement with the lock screw 27 which can be fastened and loosened.
Next, as shown in FIG. 1 and FIG. 4, the chaff sheave 6 is a rotation fulcrum pin (second rotation fulcrum pin) provided at a side end portion of each sheave plate (second sheave plate) 6 a, 6 b, 6 c. 11 and a connection pin (second connection pin) 12 are attached as an integrated structure above and below the attachment support portion 13 by molding a resin material. In this case, as shown in FIG. 4, the mounting support portion 13 is configured to be inserted and connected to the side end portions from both sides of each sheave plate 6 a, 6 b, 6 c to attach the upper and lower pins 11, 12.
The pivot fulcrum pins 8 and the connection pins 10 attached to the sheave plates 5a, 5b, 5c of the pre-sheave 5 are the pivot fulcrum pins (second pivot fulcrum) of the sheave plates 6a, 6b, 6c of the chaff sheave 6. Since the pin diameter is smaller than the pin diameter (a) of the (pin) 11 and the connection pin 12, and the resin material is not suitable in terms of strength, the steel material is used as described above.
As described above, the pre-sheave 5 is arranged on the upper side in the sorting direction of the chaff sheave 6 so that the cereals sent from the transfer shelf 4 can be pre-sorted. Therefore, it is possible to select the grains that have already been crushed and become single grains and separate them downward, thereby reducing the total amount of the objects to be sorted. Therefore, the chaff sheave 6 is less likely to be burdened with excessive sorting as in the prior art, and can perform the sorting action while fully exhibiting the original sorting ability. In addition to the sorting efficiency, the sorting accuracy is greatly improved. Could be improved.
In the case of the embodiment, since the pre-sheave 5 is provided at a position corresponding to the rear end portion of the conventional transfer shelf, the pre-sieve 5 that performs pre-sorting as described above does not narrow the sorting area of the chaff sheave 6. As a result, the burden on the chaff sheave 6 can be greatly reduced, and the sorting accuracy of the swing sorting shelf 3 as a whole can be improved.
In the case of the embodiment, when the pre-sheave 5 is compared with the chaff sheave 6, as shown in FIG. 1, the vertical length (width) of the sheave plates 5a, 5b, 5c is shortened and the selection pitch P is narrowed as a whole. 2 and 3, the adjustment length of the rotation support hole 25 and the connection pin 10 that are opened in the side plates 3 a and 3 b of the shelf 3 that receives the rotation fulcrum pin 8, as shown in FIGS. 2 and 3. Since the hole 26 can be narrowed and a large hole is not required, there is an advantage that the side plates 3a and 3b can be kept strong and can be made compact as a whole.
Furthermore, as shown in FIG. 4, the chaff sheave 6 of the embodiment is formed by integrally molding the pins 11 and 12 on the upper and lower sides of the mounting support portion 13 made of a resin material. There is also a feature that can be produced at low cost. As described above, the pre-sheave 5 has a thin wire diameter between the pivot fulcrum pin 8 and the connection pin 9, and is not suitable in terms of strength by means of molding from a resin material. When the wire is manufactured by bending), sufficient strength can be ensured even if the wire diameter is thin, so that the adjustment can be performed smoothly without any trouble in terms of durability and adjustment operation.
As shown in FIGS. 1 and 4, the chaff sheave 6 is pivotally attached to both side plates 3 a, 3 b of the swing sorting shelf 3 so that the upper rotation fulcrum pin 11 can rotate freely, and the lower connection The pin 12 is connected to a rotary connecting plate (second rotary connecting plate) 31 through the adjustment long hole 30, and the rotary connecting plate 31 is connected to a rotary arm 32 and an adjustment wire 33 to adjust the angle. (Selection interval adjustment) is possible.
As described above, the chaff sheave 6 of the embodiment is configured to perform the angle adjustment separately from the pre-sheave 5 as shown in FIGS. 1, 2, 3, and 5, so When the grain flow rate is small, it is possible to select the seeds by closing the pre-sheave and opening the chaff and letting it leak. Can be increased and sufficient preliminary sorting can be performed, and the burden of sorting the chaff sheave 6 can be reduced.
And, as shown in FIG. 5, the threshing machine 1 has a cleaning port 35 in the side plate on the feed chain 20b side, so that the sheave plate 5a is operated by operating the lock screw 27 of the pre-sheave 5. , 5b, 5c can be adjusted.
Next, an embodiment is described in which the pre-sheave 5 and the chaff sheave 6 can be integrally adjusted by an interlocking configuration which will be described later, and the adjustment operation is simplified.
In this case, as shown in FIG. 6, the pre-sheave 5 and the chaff sheave 6 are configured so as to be capable of interlocking adjustment by connecting both rotary connecting plates 9 and 31 with an interlocking rod 37. As shown in FIG. 6, the interlocking rod 37 is provided with a plurality of adjustment holes 38 a, 38 b, 38 c, and the relative angle relationship between them can be adjusted by inserting / removing the engagement pin 39. ing.
In addition, this adjustment operation can be performed by opening the cleaning port 35 opened in the side plate of the threshing machine 1 already described.
Then, as shown in the operation diagram of FIG. 7, the pre-sheave 5 and the chaff sheave 6 are connected by an interlocking rod 37 and adjusted from the outside via the chaff-side turning arm 32 and the adjusting wire 33. Both sheave plates 5a, 5b, 5c, 6a, 6b, 6c are simultaneously interlocked via the moving connecting plates 9, 31 to adjust the angle. At that time, as shown in FIG. 7, the rotation angle θ1 of the sheave plate 5a on the pre-sheave 5 side is larger than the rotation angle θ2 of the sheave plate 6a on the chaff sheave 6 side, and the adjustment range of the opening is increased. It has become.
When the pre-sheave 5 and the chaff sheave 6 configured as described above are subjected to the sorting operation by adjusting the selection pitch and changing the selection pitch, the pre-sheave 5 is always extremely closed and extremely open compared to the chaff side. However, even if it is open or conversely closed, the pre-sieve 5 is in front of the sorting process and the rear sorting action process is long. Is rarely seen.
Rather than that, the pre-sieve 5 has a large effect of performing pre-selection on the chaff, expands the adaptability of various conditions, and, as already described, can exhibit a unique function of performing pre-selection in front of the chaff sheave 6. There are excellent advantages.
Next, a specific internal configuration of the handling room 15 of the threshing machine 1 will be described for each embodiment with reference to the drawings.
First, as shown in FIGS. 8 and 9, the resistance plate (plate body) 40 is attached inside the holding rod 20 a by connecting the base to the handling chamber side guide plate 41 and the holding rod mounting base 42. It is configured so as to be guided in a layered manner while pressing the transported cereal from the upper side from the start end portion to the end portion of the handling mouth 21. In the case of the embodiment, as shown in FIG. 8, the culm holding and conveying device 20 and the resistance plate 40 are raised to the right side (conveying end side) with respect to the handling cylinder 18 that is pivoted in a substantially horizontal state. It is set as the structure provided in order toward the right along the mouth 21 formed in this. Then, as indicated by the phantom lines in FIG. 9, the resistance plate 40 is integrally lifted upward together with the holding rod 20a when the handle cover 43 is opened and rotated upward as in the known configuration. It has become.
Next, as shown in FIG. 8 and FIG. 9, the dust feed guide plate 44 is formed in a rectangular plate body in a side view, and the resistance at the right end portion, that is, the portion close to the outlet of the handling chamber 15. In accordance with the shape of the lower edge of the plate 40, a cut upper portion is formed obliquely, and ironing grooves 45, 45 having a width that allows the teeth 19 to pass through are combed in the longitudinal direction in a range from the intermediate portion to the tip portion. The rear portion is configured as a plate-shaped guide portion 44a. As shown in FIG. 9, the dust feed guide plate 44 is installed on the inner side of the resistance plate 40 so as to be bridged between the front plate 46 and the rear plate 47 constituting the framework of the threshing machine 1. A base is attached to the (frame) 48, and the tip end side is extended in the direction of the handling cylinder 18. Then, as shown in the drawing, the dust feed guide plate 44 allows the tip end side to enter the rotation range of the tooth handling teeth 19, 19 and handle the tooth handling teeth 19, 19 to a position where they pass through the ironing grooves 45, 45. a structure provided by close to cylinder 18 (until the intermediate plate from the front plate), a rear portion of the plate-like draft inside 44a, as shown in FIG. 11, is positioned outwardly from the rotation distance of扱歯19 Configured (between the middle plate and the rear plate).
As shown in FIG. 10, the cutting blade (first cutting blade) 50 is attached to the attachment frame 48. In this case, the attachment frame 48 is sandwiched with the dust feed guide plate 44 facing upward. Fastened together. Then, as can be seen from FIG. 10, the cutting blade 50 is arranged so as to face the rotation range of the tooth handling 19, and is configured to give a receding angle with respect to the rotation direction of the tooth handling 19.
With this configuration, the cutting blade 50 appropriately cuts the unprocessed material carried around by the tooth handling teeth 19 with a relatively small horsepower consumption and drops it onto the dust feed guide plate 44. Furthermore, the dust feed guide plate No. 44 conveys branch sticky grains and saw dust (many of which grains are mixed) squeezed from the teeth 19 and 19 by the squeezing grooves 45 and 45 without increasing the resistance in the handling chamber 15. It can guide to the barrel 18 side away from the cereal stock, and the number of 4th grain can be greatly reduced. At this time, the cut piece cut by the cutting blade 50 is guided on the guide surface of the dust feed guide plate 44 (the portion of the plate between the ironing groove 45 and the ironing groove 45), and the handling cylinder far from the cereal stock. Guided to the 18th side. Then, the mounting frame 48, as shown in FIG. 10, the upper, closer to to receive a raw product flowing down on the upper side of the threshing chamber inner guiding plate 41, further, to form an inclined plan inner surface 48a The unprocessed material can be guided to the cutting blade 50.
As shown in FIG. 10, the attachment frame 48 is bent at the lower edge toward the internal cutting edge 50 to form a rotation stop 48b so that the cutting action can be performed accurately.
Next, the partition plate 55 will be described.
First, as shown in FIGS. 12 and 13, the partition plate 55 is a small grain collection chamber 56 located on the outlet side of the communication port 23 between the handling chamber 15 and the dust disposal chamber 17 and further on the outlet side. Between the upper part of the handling cylinder 18 and the part close to the handling port 21. As shown in the drawing, the partition plate 55 according to this embodiment includes an upper partition plate (first partition plate) 55a attached to the barrel cover 43 and a lower partition plate (second partition plate) attached to the mounting frame 48. It consists of two upper and lower sheets 55b. Then, the upper partition plate 55a and the lower partition plate 55b are configured to be wrapped at the joint portion.
With this configuration, the dust discharged from the handling chamber 15 is discharged on the outlet side in the state where the upper portion of the handling cylinder 18 is blocked by the partition plate 55. It is stopped from being sent to the small grain recovery chamber. And most of these dusts are supplied to the dust treatment chamber 17 through the communication port 23. Accordingly, the outlet side grain recovery chamber 56 has an effect that the amount of dust (dust) mixed with grains is reduced and the fourth loss, which is an external loss, can be greatly reduced. Furthermore, since the partition plate 55 is divided into two parts, that is, an upper portion attached to the barrel cover 43 and a lower portion attached using an attachment frame 48 to which the cutting blade 50 and the dust discharge guide plate 44 are attached, Since the lower partition plate 55b is provided close to the axial center of the handling cylinder 18, the partition can be sufficiently performed. Furthermore, since the partition plate 55 is configured by wrapping the joint portion between the lower edge portion of the upper portion 55a and the upper edge portion of the lower portion 55b, there is a feature that the processed material is hardly pinched and is not likely to be clogged. is there.
Next, as shown in FIGS. 14 and 15, in addition to the cutting blade 50 arranged above the dust feeding guide plate 44 described above, the cutting blade is also formed above the net frame 57 on the back side of the handling chamber 15. Another embodiment in which (second cutting blades) 58 are arranged will be described.
First, as shown in FIGS. 14 and 15, the cutting blade 58 is provided by being attached to an attachment frame 60 provided between the front plate 46 and the rear plate 47. Arranged on the upper side, the barrel 18 is configured to cut the threshing carried by the teeth 19 and 19. In this case, the cutting blades 58 are at a position higher than the front cutting blade 50 already described as shown in FIG. 14, and are arranged on different cutting lines as shown in FIG. It is configured to be able to cut the threshing that is carried around 50 different lines.
If comprised in this way, since the handling chamber 15 was comprised over the mounting frames 48 and 60 which attach the cutting blades 50 and 58 to the front side and the back side, respectively, the rigidity of a frame increased and it became a sturdy structure. There is a characteristic that became. And since the handling chamber 15 provided both the cutting blades 50 and 58 in the high position, the extending range of the receiving net 61 becomes wide, and there exists an attendant effect that the sorting leakage area in the room was expanded.
And the cutting blades 58 and 50 are increased inside the handling chamber 15 to accurately cut the unprocessed material that the handling cylinder 18 catches around the handling teeth 19 and 19 to improve the degranulation and sorting effect. In addition, there is a feature of reducing the loss of grains outside the machine, and in particular, the generation of abnormal noise in the handling room 15 is much less than in conventional cases even in threshing work under bad conditions for treating wet materials such as rainy weather. There is.

２選別室
３揺動選別棚
４移送棚
５プレシーブ
５ａ，５ｂ，５ｃ第１シーブプレート
６チャフシーブ
６ａ，６ｂ，６ｃ第２シーブプレート
７ストローラック
９回動連結板（第１回動連結板）
１５扱室
１７排塵処理室
１８扱胴
１９扱歯
２０ｂフィードチエン
２１扱口
２３連通口
３１回動連結板（第１回動連結板）
３７連動ロッド
３８ａ，３８ｂ，３８ｃ調整孔
３９係合ピン
４０抵抗板（板体）
４３扱胴カバー
４４送塵ガイド板
４６前板
４７後板
４８取付フレーム（フレーム）
５５仕切板
５５ａ上部仕切板（第１仕切板）
５５ｂ下部仕切板（第２仕切板）
５６ささり粒回収室
Ｈ上下幅
Ｐ選別ピッチ 2 sorting room
3 swing sorting shelf
4 Transfer shelf
5 Presieve
5a, 5b, 5c First sheave plate
6 Chaff Seeb
6a, 6b, 6c Second sheave plate
7 Strollac
9 Rotating connecting plate (first rotating connecting plate)
15 Handling chamber 17 Dust removal processing chamber 18 Handling cylinder 19 Teeth
20b Feed chain 21 Handling port 23 Communication port
31 Rotating connecting plate (first rotating connecting plate)
37 Interlocking rod
38a, 38b, 38c adjustment hole
39 Engagement pin
40 Resistance plate (plate)
43 Handling cylinder cover
44 Dust feed guide plate
46 Front plate
47 Rear plate 48 Mounting frame (frame)
55 Partition plate 55a Upper partition plate (first partition plate)
55b Lower partition plate (second partition plate)
56 Salad Grain Collection Room
H Vertical width
P Selection pitch

Claims

A handling chamber (15) in which a handling cylinder (18) is pivoted between a front plate (46) and a rear plate (47) and a dust treatment chamber (17) are communicated with each other through a communication port (23), and the handling chamber is arranged. (15) In the threshing apparatus in which the sorting chamber (2) having the swing sorting shelf (3) is arranged below the handling chamber (15), and the handling port (21) is opened on the side of the handling chamber (15). ,
In the rear part of the handling chamber (15) behind the communication port (23), there is formed a small grain collection chamber (56) for collecting small grains by the tooth handling (19) at the rear end of the handling cylinder (18). And a frame (48) disposed on the upper side of the handling port (21) and spanned between the front plate (46) and the rear plate (47). The handling chamber (15) and the small grain recovery chamber ( a partition plate which partitions between the 56) (55), not covered above the threshing drum (18), a first partition plate which is attached to the lower surface of the open rotatable threshing drum cover (43) upwards (55a ) and is formed by the junction between the frame (second partition plate attached to 48) (55b),
A base portion of a plate body (40) that presses the cereals conveyed by the feed chain (20b) from the upper end to the end portion of the handle (21) is attached to the handle cover (43). The plate (40) is disposed outside the frame (48),
A threshing device, wherein a base of a dust feed guide plate (44) having a distal end extending toward the handle cylinder (18) is attached to the frame (48) .

The swing sorting shelf (3) is configured by arranging a transfer shelf (4), a pre-sheave (5), a chaff sheave (6), and a stroller rack (7) in this order from the upper side in the sorting direction. Each of the first sheave plates (5a, 5b, 5c) provided for 5) has a selection pitch (P) between the sheave plates as compared to each second sheave plate (6a, 6b, 6c) provided for the chaff sheave (6). And a first rotating connecting plate (9) pivotally attached to the lower portion of each first sheave plate (5a, 5b, 5c), and each second sheave plate (6a). , 6b, 6c) and a second rotating connecting plate (31) pivotally attached to each other by an interlocking rod (37), the first sheave plate (5a, 5b, 5c) and the second sheave plate (6a, 6c). 6b, 6c) when rotating in conjunction with The opening adjustment range of the pre-sheave (5) by the rotation of the first sheave plate (5a, 5b, 5c) is larger than the opening adjustment range of the chaff sheave (6) by the rotation of the second sheave plate (6a, 6b, 6c). A first configuration is obtained by replacing the engagement pin (39) on the second rotation connecting plate (31) side with a plurality of adjustment holes (38a, 38b, 38c) provided in the interlocking rod (37). The threshing apparatus according to claim 1, wherein the relative angular relationship between the sheave plate (5a, 5b, 5c) and the second sheave plate (6a, 6b, 6c) is adjustable.