JP7057906B1

JP7057906B1 - Threshing device handling barrel

Info

Publication number: JP7057906B1
Application number: JP2021010896A
Authority: JP
Inventors: 寛樹渡部
Original assignee: Iseki and Co Ltd
Current assignee: Iseki and Co Ltd
Priority date: 2021-01-27
Filing date: 2021-01-27
Publication date: 2022-04-21
Anticipated expiration: 2041-01-27
Also published as: JP2022114572A

Abstract

【課題】扱胴に搬送されてくる穀稈量の変動が大きい場合にも脱穀処理を効率良く行うことができる脱穀装置の扱胴を提案する。【解決手段】回転軸（３０）に軸心視において、第１プレート（４２）と第２プレート（６１）におけるドラム（５０）のドラム側板（５９）の外周部に、複数の扱歯（７１）が立設された支持部（７２）を設け、第１プレート（４２）に支持部（７２）の前部を前ステー（７３）を介して連結し、第２プレート（６１）に支持部（７２）の後部を後ステー（７４）を介して連結し、回転軸（３０）に軸心視において、前ステー（７３）の前連結部（７３Ａ）に、ドラム側板（５９）と平行な長軸を有する前長穴（７３Ｃ）を形成し、回転軸（３０）に軸心視において、後ステー（７４）の後連結部（７４Ａ）に、ドラム側板（５９）と平行な長軸を有する後長穴（７４Ｃ）を形成した。【選択図】図７PROBLEM TO BE SOLVED: To propose a handling cylinder of a threshing device capable of efficiently performing a threshing process even when the amount of grain transported to the handling cylinder fluctuates greatly. SOLUTION: A plurality of handling teeth (71) are formed on an outer peripheral portion of a drum side plate (59) of a drum (50) in a first plate (42) and a second plate (61) in an axial view on a rotation axis (30). ) Is provided upright, the front part of the support part (72) is connected to the first plate (42) via the front stay (73), and the support part is connected to the second plate (61). The rear portion of (72) is connected via the rear stay (74), and is parallel to the front connecting portion (73A) of the front stay (73) and the drum side plate (59) in the axial view to the rotation shaft (30). A front long hole (73C) having a long axis is formed, and a long axis parallel to the drum side plate (59) is formed on the rear connecting portion (74A) of the rear stay (74) in the axial view on the rotation axis (30). A rear elongated hole (74C) having was formed. [Selection diagram] FIG. 7

Description

本発明は、脱穀装置の扱胴に関するものである。 The present invention relates to a handling cylinder of a threshing device.

従来、脱穀装置の扱室の回転軸に前後方向に所定の間隔を隔てて設けられた複数の円形状のプレートに、左右方向の縦断面が六角形に形成されたドラムを架設し、ドラムの外周部に径方向に所定の間隔を隔てて複数の扱歯を備える前後方向に延在する支持部を架設する技術が提案されている。 Conventionally, a drum having a hexagonal vertical cross section in the left-right direction is erected on a plurality of circular plates provided at predetermined intervals in the front-rear direction on the rotation axis of the handling chamber of the threshing device. A technique has been proposed in which a support portion extending in the front-rear direction is provided on the outer peripheral portion with a plurality of handling teeth at predetermined intervals in the radial direction.

特開２０１６－１８７３２７号公報Japanese Unexamined Patent Publication No. 2016-187327

しかし、特許文献１の技術においては、扱歯の歯先の回転軌跡の外周径や後退角を変更することができないので、扱胴に搬送されてくる穀稈量の変動が大きい場合には脱穀処理の効率が低下するという問題があった。 However, in the technique of Patent Document 1, since the outer peripheral diameter and the receding angle of the rotation locus of the tooth tip of the handling tooth cannot be changed, threshing is performed when the fluctuation of the grain culm amount conveyed to the handling cylinder is large. There was a problem that the processing efficiency was lowered.

そこで、本発明の主たる課題は、扱胴に搬送されてくる穀稈量に応じて扱歯の歯先の回転軌跡の外周径や後退角を調整して、扱胴に搬送されてくる穀稈量の変動が大きい場合にも脱穀処理を効率良く行うことができる脱穀装置の扱胴を提案することにある。 Therefore, the main problem of the present invention is to adjust the outer diameter and the receding angle of the rotation locus of the tooth tip of the handling tooth according to the amount of grain culm transported to the handling cylinder, and to carry the grain culm to the handling cylinder. The present invention is to propose a handling cylinder of a threshing device that can efficiently perform a threshing process even when the amount fluctuates greatly.

上記課題を解決した本発明は次のとおりである。
すなわち、請求項１記載の発明は、前後方向に延在する回転軸（３０）の前部に円形状の第１プレート（４２）を設け、該回転軸（３０）の後部に円形状の第２プレート（６１）を設け、前記第１プレート（４２）と第２プレート（６１）に左右方向の縦断面が六角形状のドラム（５０）を架設した脱穀装置の扱胴において、
前記回転軸（３０）に軸心視において、前記第１プレート（４２）と第２プレート（６１）におけるドラム（５０）のドラム側板（５９）の外周部に、複数の扱歯（７１）が立設された支持部（７２）を設け、前記第１プレート（４２）に支持部（７２）の前部を前ステー（７３）を介して連結し、前記第２プレート（６１）に支持部（７２）の後部を後ステー（７４）を介して連結し、前記回転軸（３０）に軸心視において、前記前ステー（７３）の前連結部（７３Ａ）に、前記ドラム側板（５９）と平行な長軸を有する前長穴（７３Ｃ）を形成し、前記回転軸（３０）に軸心視において、前記後ステー（７４）の後連結部（７４Ａ）に、前記ドラム側板（５９）と平行な長軸を有する後長穴（７４Ｃ）を形成したことを特徴とする脱穀装置の扱胴である。 The present invention that solves the above problems is as follows.
That is, according to the first aspect of the present invention, a circular first plate (42) is provided at the front portion of the rotating shaft (30) extending in the front-rear direction, and a circular first plate (42) is provided at the rear portion of the rotating shaft (30). In the handling cylinder of the threshing device in which two plates (61) are provided and a drum (50) having a hexagonal vertical cross section in the left-right direction is erected on the first plate (42) and the second plate (61).
A plurality of handling teeth (71) are provided on the outer peripheral portion of the drum side plate (59) of the drum (50) in the first plate (42) and the second plate (61) in the axial view on the rotation axis (30). An erected support portion (72) is provided, the front portion of the support portion (72) is connected to the first plate (42) via a front stay (73), and the support portion is connected to the second plate (61). The rear portion of (72) is connected via the rear stay (74), and the drum side plate (59) is connected to the front connecting portion (73A) of the front stay (73) in an axial view to the rotation shaft (30). A front elongated hole (73C) having a long axis parallel to the above is formed, and the drum side plate (59) is formed on the rear connecting portion (74A) of the rear stay (74) in an axial view on the rotating shaft (30). It is a handling cylinder of a grain removal device characterized by forming a rear elongated hole (74C) having a long axis parallel to the above.

請求項２記載の発明は、前記回転軸（３０）における第１プレート（４２）と第２プレート（６１）の中間部に、左右方向の縦断面が六角形状の固定部（８０）を設け、前記ドラム（５０）を、前記第１プレート（４２）と固定部（８０）に架設される左右方向の縦断面が六角形状の前ドラム（５１）と、前記固定部（８０）と第２プレート（６１）に架設される左右方向の縦断面が六角形状の後ドラム（５５）で形成し、前記固定部（８０）の固定部側板（８２）に支持部（７２）の前後方向の中間部を中間ステー（７５）を介して連結し、平面視において、前記中間ステー（７５）の中間連結部（７５Ａ）に、前記固定部側板（８２）の左右方向に平行な長軸を有する中間長穴（７５Ｃ）を形成した請求項１記載の脱穀装置の扱胴である。 According to the second aspect of the present invention, a fixing portion (80) having a hexagonal vertical cross section in the left-right direction is provided at an intermediate portion between the first plate (42) and the second plate (61) on the rotating shaft (30). The drum (50) is mounted on the first plate (42) and the fixing portion (80), and the front drum (51) having a hexagonal vertical cross section in the left-right direction, the fixing portion (80), and the second plate. The vertical cross section in the left-right direction erected on (61) is formed by a hexagonal rear drum (55), and the intermediate portion in the front-rear direction of the support portion (72) is formed on the fixing portion side plate (82) of the fixing portion (80). Is connected via the intermediate stay (75), and in a plan view, the intermediate length has a long axis parallel to the intermediate connecting portion (75A) of the intermediate stay (75) in the left-right direction of the fixing portion side plate (82). The handling cylinder of the grain removal device according to claim 1, wherein a hole (75C) is formed.

請求項３記載の発明は、前記回転軸（３０）に軸心視において、前記中間ステー（７５）の中間支持部（７５Ｂ）の回転方向の下手側部を回転方向の上手側に向かって直線状に傾斜させて形成した請求項２記載の脱穀装置の扱胴である。 According to the third aspect of the present invention, the lower side portion of the intermediate support portion (75B) of the intermediate stay (75) in the rotation direction is linearly directed toward the upper side in the rotation direction in the axial view of the rotation axis (30). The handling cylinder of the grain removal device according to claim 2, which is formed by inclining the shape.

請求項４記載の発明は、前記中間支持部（７５Ｂ）の回転方向の下手側部の傾斜角度（θ１）を、回転方向の下手側に隣接する固定部側板（８２）の傾斜角度（θ２）よりも小さく形成した請求項３記載の脱穀装置の扱胴である。 In the invention according to claim 4, the inclination angle (θ1) of the lower side portion in the rotation direction of the intermediate support portion (75B) is set to the inclination angle (θ2) of the fixing portion side plate (82) adjacent to the lower side in the rotation direction. The handling cylinder of the threshing device according to claim 3, which is formed smaller than the above.

請求項５記載の発明は、前記回転軸（３０）に軸心視において、前記中間ステー（７５）の中間支持部（７５Ｂ）の径方向の長さを、前記前ステー（７３）の前支持部（７３Ｂ）と後ステー（７４）の後支持部（７４Ｂ）の径方向の長さよりも長く形成した請求項２～４のいずれか１項に記載の脱穀装置の扱胴である。 The invention according to claim 5 applies the radial length of the intermediate support portion (75B) of the intermediate stay (75) to the front support of the front stay (73) in the axial view of the rotation axis (30). The handling cylinder of the threshing device according to any one of claims 2 to 4, which is formed longer than the radial length of the rear support portion (74B) of the portion (73B) and the rear stay (74).

請求項１記載の発明によれば、回転軸（３０）に軸心視において、第１プレート（４２）と第２プレート（６１）におけるドラム（５０）のドラム側板（５９）の外周部に、複数の扱歯（７１）が立設された支持部（７２）を設け、第１プレート（４２）に支持部（７２）の前部を前ステー（７３）を介して連結し、第２プレート（６１）に支持部（７２）の後部を後ステー（７４）を介して連結し、回転軸（３０）に軸心視において、前ステー（７３）の前連結部（７３Ａ）に、ドラム側板（５９）と平行な長軸を有する前長穴（７３Ｃ）を形成し、回転軸（３０）に軸心視において、後ステー（７４）の後連結部（７４Ａ）に、ドラム側板（５９）と平行な長軸を有する後長穴（７４Ｃ）を形成したので、扱胴に搬送されてくる穀稈の穀稈量、すなわち圃場の穀稈の植立状態等に応じて前ステー（７３）と後ステー（７４）をドラム側板（５９）に対して平行に移動させて、穀稈量に最適な扱歯（７１）の歯先の回転軌跡の外周径と後退角を調整して脱穀処理を効率良く行うことができる。 According to the first aspect of the invention, on the outer peripheral portion of the drum side plate (59) of the drum (50) in the first plate (42) and the second plate (61) in the axial view with respect to the rotation axis (30). A support portion (72) on which a plurality of handling teeth (71) are erected is provided, and the front portion of the support portion (72) is connected to the first plate (42) via a front stay (73) to connect the second plate. The rear portion of the support portion (72) is connected to (61) via the rear stay (74), and the drum side plate is connected to the front connecting portion (73A) of the front stay (73) in axial view to the rotation shaft (30). A front elongated hole (73C) having a long axis parallel to (59) is formed, and the drum side plate (59) is formed on the rear connecting portion (74A) of the rear stay (74) in the axial view on the rotation axis (30). Since the rear elongated hole (74C) having a long axis parallel to the axis is formed, the front stay (73) is adjusted according to the amount of grain of the grain transported to the handling cylinder, that is, the state of planting of the grain in the field. And the rear stay (74) are moved in parallel with the drum side plate (59) to adjust the outer peripheral diameter and the receding angle of the rotation locus of the tooth tip of the handling tooth (71), which is optimal for the amount of grain, to perform the grain removal process. Can be done efficiently.

請求項２記載の発明によれば、請求項１記載の発明による効果に加えて、回転軸（３０）における第１プレート（４２）と第２プレート（６１）の中間部に、左右方向の縦断面が六角形状の固定部（８０）を設け、ドラム（５０）を、第１プレート（４２）と固定部（８０）に架設される左右方向の縦断面が六角形状の前ドラム（５１）と、固定部（８０）と第２プレート（６１）に架設される左右方向の縦断面が六角形状の後ドラム（５５）で形成し、固定部（８０）の固定部側板（８２）に支持部（７２）の前後方向の中間部を中間ステー（７５）を介して連結し、平面視において、中間ステー（７５）の中間連結部（７５Ａ）に、固定部側板（８２）の左右方向に平行な長軸を有する中間長穴（７５Ｃ）を形成したので、前後方向の長さが長い扱胴であってもドラム（５０）や支持部（７２）の変形を抑制することができる。 According to the invention of claim 2, in addition to the effect of the invention of claim 1, a vertical section in the left-right direction is formed at an intermediate portion between the first plate (42) and the second plate (61) on the rotation axis (30). A fixed portion (80) having a hexagonal surface is provided, and a drum (50) is provided with a front drum (51) having a hexagonal vertical cross section in the left-right direction erected on the first plate (42) and the fixed portion (80). , The left-right vertical cross section erected on the fixed portion (80) and the second plate (61) is formed by a hexagonal rear drum (55), and the support portion is attached to the fixed portion side plate (82) of the fixed portion (80). The intermediate portion in the front-rear direction of (72) is connected via the intermediate stay (75), and is parallel to the intermediate connecting portion (75A) of the intermediate stay (75) in the left-right direction of the fixing portion side plate (82) in a plan view. Since the intermediate slotted hole (75C) having a long axis is formed, deformation of the drum (50) and the support portion (72) can be suppressed even in a handling cylinder having a long length in the front-rear direction.

請求項３記載の発明によれば、請求項２記載の発明による効果に加えて、回転軸（３０）に軸心視において、中間ステー（７５）の中間支持部（７５Ｂ）の回転方向の下手側部を回転方向の上手側に向かって直線状に傾斜させて形成したので、前ドラム（５１）から後ドラム（５５）に搬送されてくる穀稈が中間支持部（７５Ｂ）に絡み付くのを抑制して、穀稈を後ドラム（５５）に効率良く搬送することができる。 According to the invention of claim 3, in addition to the effect of the invention of claim 2, the rotation direction of the intermediate support portion (75B) of the intermediate stay (75) is poor in the axial view of the rotation axis (30). Since the side portion is formed by inclining linearly toward the upper side in the rotation direction, the grain shavings transported from the front drum (51) to the rear drum (55) are entangled with the intermediate support portion (75B). It can be suppressed and the grain can be efficiently transported to the rear drum (55).

請求項４記載の発明によれば、請求項３記載の発明による効果に加えて、中間支持部（７５Ｂ）の回転方向の下手側部の傾斜角度（θ１）を、回転方向の下手側に隣接する固定部側板（８２）の傾斜角度（θ２）よりも小さく形成したので、前ドラム（５１）から後ドラム（５５）に搬送されてくる穀稈が中間支持部（７５Ｂ）に絡み付くのをより抑制して、穀稈を後ドラム（５５）により効率良く搬送することができる。 According to the invention of claim 4, in addition to the effect of the invention of claim 3, the inclination angle (θ1) of the lower side portion of the intermediate support portion (75B) in the rotation direction is adjacent to the lower side of the rotation direction. Since the fixed portion side plate (82) is formed to be smaller than the inclination angle (θ2), the grain culms transported from the front drum (51) to the rear drum (55) are more likely to be entangled with the intermediate support portion (75B). It can be suppressed and the grain culm can be efficiently transported by the rear drum (55).

請求項５記載の発明によれば、請求項２～４のいずれか１項に記載の発明による効果に加えて、回転軸（３０）に軸心視において、中間ステー（７５）の中間支持部（７５Ｂ）の径方向の長さを、前ステー（７３）の前支持部（７３Ｂ）と後ステー（７４）の後支持部（７４Ｂ）の径方向の長さよりも長く形成したので、前ドラム（５１）と支持部（７２）の間に形成される空間と後ドラム（５５）と支持部（７２）の間に形成される空間が連続して、穀稈を前ドラム（５１）から後ドラム（５５）にさらに効率良く搬送することができる。 According to the invention of claim 5, in addition to the effect of the invention of any one of claims 2 to 4, the intermediate support portion of the intermediate stay (75) in the axial view of the rotating shaft (30). Since the radial length of (75B) is formed longer than the radial length of the front support portion (73B) of the front stay (73) and the rear support portion (74B) of the rear stay (74), the front drum is formed. The space formed between the (51) and the support portion (72) and the space formed between the rear drum (55) and the support portion (72) are continuous, and the grain is rearranged from the front drum (51). It can be transported to the drum (55) more efficiently.

コンバインの正面図である。It is a front view of a combine. コンバインの左側面図である。It is a left side view of the combine. コンバインの平面図である。It is a plan view of a combine. 脱穀装置の前後方向の縦断面図である。It is a vertical sectional view in the front-rear direction of a threshing device. 扱胴の側面図である。It is a side view of a handling cylinder. 同扱胴の組立説明図である。It is an assembly explanatory drawing of the same handling cylinder. 同扱胴のロータの前部の正面図である。It is a front view of the front part of the rotor of the same handling cylinder. 同扱胴のロータの中間部の正面図である。It is a front view of the middle part of the rotor of the same handling cylinder. 選別室の前壁のケーシングの説明図である。It is explanatory drawing of the casing of the front wall of a sorting chamber.

図１～３に示すように、汎用コンバインは、機体フレーム１の下側に土壌面を走行する左右一対のクローラからなる走行装置２が設けられ、機体フレーム１の前側に圃場の穀稈を収穫する刈取前処理装置３が設けられ、刈取前処理装置３の後方左側に収穫された穀稈を脱穀・選別処理する脱穀装置４が設けられ、刈取前処理装置３の後方右側に操縦者が搭乗する操縦部５が設けられている。 As shown in FIGS. 1 to 3, in the general-purpose combine, a traveling device 2 composed of a pair of left and right crawler traveling on the soil surface is provided on the lower side of the machine frame 1, and the grain culm in the field is harvested on the front side of the machine frame 1. A pre-cutting processing device 3 is provided, a threshing device 4 for threshing and sorting harvested culms is provided on the rear left side of the pre-cutting processing device 3, and an operator is on the rear right side of the pre-cutting processing device 3. The control unit 5 is provided.

操縦部５の下側にエンジンを内装するエンジンルーム６が設けられ、操縦部５の後側に脱穀・選別処理された穀粒を貯留するグレンタンク７が設けられ、グレンタンク７の後側に穀粒を外部に排出する排出オーガ８が設けられている。 An engine room 6 for incorporating an engine is provided on the lower side of the control unit 5, a grain tank 7 for storing threshed and sorted grains is provided on the rear side of the control unit 5, and a grain tank 7 is provided on the rear side of the control unit 5. A discharge auger 8 for discharging grains to the outside is provided.

刈取前処理装置３は、圃場の穀稈を起立させながら後側に搬送する搬送装置３Ａと、搬送装置３Ａの後側下部に搬送された穀稈の株元を切断する刈刃装置３Ｂと、搬送装置３Ａの後側に搬送された穀稈を左側に寄せ集めるオーガ装置３Ｃと、寄せ集められた穀稈を脱穀装置４に搬送するフィーダハウス３Ｄから構成されている。 The pre-cutting treatment device 3 includes a transport device 3A for transporting the grain culms in the field to the rear side while standing upright, a cutting blade device 3B for cutting the stock of the grain culms transported to the lower rear side of the transport device 3A. It is composed of an auger device 3C that collects the collected grain culms on the left side and a feeder house 3D that transfers the collected grain culms to the grain removal device 4.

図４に示すように、脱穀装置４は、穀稈を脱穀する扱室１０と、脱穀された穀粒を選別する選別室２０から形成されている。 As shown in FIG. 4, the threshing device 4 is formed of a handling chamber 10 for threshing grain culms and a sorting chamber 20 for sorting the threshed grains.

扱室１０の前後壁には、フィーダハウス３Ｄから搬送されてくる穀稈を脱穀する扱胴１１が架設され、扱胴１１の下側には、扱胴１１の外周下部に沿って半円弧形状に形成された受網１２が設けられている。また、扱胴１１の上部は、開閉可能な扱胴カバー（図示省略）で覆われており、扱胴カバーの内周部には、穀稈を扱室１０の後部に案内する送塵板が設けられている。 On the front and rear walls of the handling chamber 10, a handling cylinder 11 for threshing the grain culms carried from the feeder house 3D is erected, and on the lower side of the handling cylinder 11, a semi-arc shape is formed along the lower part of the outer circumference of the handling cylinder 11. The receiving net 12 formed in the above is provided. Further, the upper part of the handling cylinder 11 is covered with an openable and closable handling cylinder cover (not shown), and a dust feeding plate for guiding the grain culm to the rear part of the handling chamber 10 is provided on the inner peripheral portion of the handling cylinder cover. It is provided.

選別室２０の上部には、扱室１０から漏下してくる穀粒を選別処理する揺動選別装置２１が設けられている。揺動選別装置２１の下部には、前側から順に、揺動選別装置２１に選別風を送風する唐箕２５と、唐箕２５の後方に選別風の送風方向を変更する風割２６と、揺動選別装置２１から漏下してくる穀粒をグレンタンク７に搬送する１番螺旋２７と、揺動選別装置２１の後部から漏下してくる枝梗等が付着した穀粒を揺動選別装置２１の前部の選別棚に再搬送する２番螺旋２８が設けられている。 A swing sorting device 21 for sorting grains leaking from the handling chamber 10 is provided in the upper part of the sorting chamber 20. At the bottom of the swing sorting device 21, a wall insert 25 that blows the sorting air to the swing sorting device 21 in order from the front side, and a wind split 26 that changes the blowing direction of the sorting wind behind the wall insert 25, and a swing sorting device 21. The first spiral 27 that conveys the grain leaking from the device 21 to the grain tank 7, and the swing sorting device 21 that adheres the grain with the wall insert or the like leaking from the rear of the swing sorting device 21. A second spiral 28 is provided for re-transporting to the sorting shelf at the front of the wall insert.

図５，６に示すように、扱胴１１は、扱室１０の前後壁に回転自在に架設される回転軸３０と、回転軸３０の前部に支持された中空の円錐台形状のインペラ４０と、回転軸３０におけるインペラ４０の後側に支持された中空の六角筒形状のドラム５０と、回転軸３０におけるドラム５０の後側に支持された中空の円筒状の円筒ドラム６０と、ドラム５０の外周部に円周方向に所定角度を隔てて設けられた前後方向に延在する扱歯支持杆のロータ７０から形成されている。 As shown in FIGS. 5 and 6, the handling cylinder 11 includes a rotating shaft 30 rotatably installed on the front and rear walls of the handling chamber 10, and a hollow truncated cone-shaped impeller 40 supported by the front portion of the rotating shaft 30. A hollow hexagonal cylindrical drum 50 supported on the rear side of the impeller 40 on the rotating shaft 30, a hollow cylindrical cylindrical drum 60 supported on the rear side of the drum 50 on the rotating shaft 30, and a drum 50. It is formed of a rotor 70 of a handle tooth support rod extending in the front-rear direction, which is provided on the outer peripheral portion of the outer peripheral portion of the sword at a predetermined angle in the circumferential direction.

（回転軸）
回転軸３０の前端部には、インペラ４０の前板４１が連結される円形状の前端板３１が設けられ、回転軸３０の前部には、インペラ４０の後板（請求項の「第１プレート」）４２が連結される円形状の前板３２が設けられ、回転軸３０の後端部には、円筒ドラム６０の前板（請求項の「第２プレート」）６１が連結される円形状の後板３４が設けられている。 (Axis of rotation)
A circular front end plate 31 to which the front plate 41 of the impeller 40 is connected is provided at the front end of the rotary shaft 30, and the rear plate of the impeller 40 (the first of the claims) is provided at the front of the rotary shaft 30. A circular front plate 32 to which the plate 42 is connected is provided, and a circular front plate (“second plate” of claim) 61 of the cylindrical drum 60 is connected to the rear end of the rotating shaft 30. A rear plate 34 having a shape is provided.

回転軸３０における前板３２と後板３４の前後方向の中間部には円形状の中板３３が設けられ、中板３３の後面には、ロータ７０の前後方向の中間部を支持する中空の六角筒形状の固定部８０が設けられている。 A circular middle plate 33 is provided at an intermediate portion between the front plate 32 and the rear plate 34 in the rotation shaft 30 in the front-rear direction, and a hollow hollow portion supporting the intermediate portion in the front-rear direction of the rotor 70 is provided on the rear surface of the middle plate 33. A hexagonal cylinder-shaped fixing portion 80 is provided.

固定部８０の前板８１の前面は、回転軸３０の中板３３の後面に前板８１の後方から前方に挿入されたボルトによって連結され、円筒ドラム６０の前板６１の前面は、回転軸３０の後板３４の後面に前板６１の後方から前方に挿入されたボルトによって連結されている。 The front surface of the front plate 81 of the fixing portion 80 is connected to the rear surface of the middle plate 33 of the rotating shaft 30 by bolts inserted from the rear to the front of the front plate 81, and the front surface of the front plate 61 of the cylindrical drum 60 is the rotating shaft. It is connected to the rear surface of the rear plate 34 of 30 by a bolt inserted from the rear to the front of the front plate 61.

（インペラ）
インペラ４０は、円形状の前板４１と、前板４１よりも径が大きい円形状の後板４２と、前板４１と後板４２の外周部を連結する側板４３から形成されている。 (Impeller)
The impeller 40 is formed of a circular front plate 41, a circular rear plate 42 having a diameter larger than that of the front plate 41, and a side plate 43 connecting the front plate 41 and the outer peripheral portion of the rear plate 42.

側板４３の外周面には、インペラ４０の前部に搬送された穀稈をインペラ４０の後部に搬送する上下一対の搬送螺旋４４が立設されている。これにより、インペラ４０に移送されてきた穀稈をインペラ４０の前部から後部に効率よく搬送してロータ７０に移送することができる。 On the outer peripheral surface of the side plate 43, a pair of upper and lower transport spirals 44 for transporting the grain culms transported to the front portion of the impeller 40 to the rear portion of the impeller 40 are erected. As a result, the grain culm transferred to the impeller 40 can be efficiently transported from the front portion to the rear portion of the impeller 40 and transferred to the rotor 70.

搬送螺旋４４の前面には、円周方向に所定角度を隔てて側板４３と搬送螺旋４４の前面下部を連結する略三角形状の補強リブ４５が設けられている。これにより、搬送螺旋４４の剛性を高めて、穀稈から搬送螺旋４４に加わる負荷による搬送螺旋４４の変形を抑制することができる。 A substantially triangular reinforcing rib 45 is provided on the front surface of the transport spiral 44 to connect the side plate 43 and the lower front surface of the transport spiral 44 at a predetermined angle in the circumferential direction. As a result, the rigidity of the transport spiral 44 can be increased, and the deformation of the transport spiral 44 due to the load applied to the transport spiral 44 from the grain culm can be suppressed.

回転軸３０の前端板３１の前面は、インペラ４０の前板４１の後面に前板４１の前方から後方に挿入される締結手段であるボルトによって連結され、回転軸３０の前板３２の前面は、インペラ４０の後板４２の後面に前板３２の後方から前方に挿入されるボルトによって連結されている。 The front surface of the front end plate 31 of the rotating shaft 30 is connected to the rear surface of the front plate 41 of the impeller 40 by a bolt which is a fastening means inserted from the front to the rear of the front plate 41, and the front surface of the front plate 32 of the rotating shaft 30 is connected. , Is connected to the rear surface of the rear plate 42 of the impeller 40 by a bolt inserted from the rear to the front of the front plate 32.

（ドラム）
ドラム５０は、インペラ４０の後板４２と固定部８０の前板８１に連結される左右方向の縦断面が六角形状の前ドラム５１と、固定部８０の側板（請求項の「固定部側板」）８２と円筒ドラム６０の前板６１に連結される左右方向の縦断面が六角形状の後ドラム５５から形成されている。なお、本実施形態では、ドラム５０の左右方向の縦断面を六角形状に形成しているが３～８角形状等の任意の多角形状に形成することができる。 (drum)
The drum 50 includes a front drum 51 having a hexagonal vertical cross section in the left-right direction connected to the rear plate 42 of the impeller 40 and the front plate 81 of the fixing portion 80, and the side plate of the fixing portion 80 (“fixed portion side plate” in the claim). ) 82 and the vertical cross section in the left-right direction connected to the front plate 61 of the cylindrical drum 60 are formed from the hexagonal rear drum 55. In the present embodiment, the vertical cross section of the drum 50 in the left-right direction is formed in a hexagonal shape, but it can be formed in any polygonal shape such as a triangular shape or an octagonal shape.

前ドラム５１は、前ドラム５１の一側を形成する上側前ドラム５２と他側を形成する下側前ドラム５３から形成されている。なお、上側前ドラム５２の側板５９Ａの下端部と下側前ドラム５３は側板５９Ａの上端部をボルトで連結することにより前ドラム５１を形成することができる。これにより、前ドラム５１を容易に形成することができる。 The front drum 51 is formed of an upper front drum 52 forming one side of the front drum 51 and a lower front drum 53 forming the other side. The lower end of the side plate 59A of the upper front drum 52 and the lower front drum 53 can form the front drum 51 by connecting the upper ends of the side plates 59A with bolts. Thereby, the front drum 51 can be easily formed.

上側前ドラム５２の前端部には、径方向の内側に向かって延在する上側前連結部５２Ａが形成され、上側前ドラム５２の後端部には、径方向の内側に向かって延在する上側後連結部５２Ｂが形成されている。また、下側前ドラム５３の前端部には、径方向の内側に向かって延在する下側前連結部５３Ａが形成され、下側前ドラム５３の後端部には、径方向の内側に向かって延在する下側後連結部５３Ｂが形成されている。これにより、前ドラム５１を上側前連結部５２Ａと下側前連結部５３Ａを介してインペラ４０の後板４２に容易に連結することができ、上側後連結部５２Ｂと下側後連結部５３Ｂを介して固定部８０の前板８１に容易に連結することができる。 The front end of the upper front drum 52 is formed with an upper front connecting portion 52A extending inward in the radial direction, and the rear end of the upper front drum 52 extends inward in the radial direction. The upper rear connecting portion 52B is formed. Further, a lower front connecting portion 53A extending inward in the radial direction is formed at the front end portion of the lower front drum 53, and the rear end portion of the lower front drum 53 is formed inward in the radial direction. A lower rear connecting portion 53B extending toward is formed. As a result, the front drum 51 can be easily connected to the rear plate 42 of the impeller 40 via the upper front connecting portion 52A and the lower front connecting portion 53A, and the upper rear connecting portion 52B and the lower rear connecting portion 53B can be connected to each other. It can be easily connected to the front plate 81 of the fixing portion 80 via the fixing portion 80.

上側前ドラム５２の上側の頂部５８Ａから回転方向の上手側に延在する側板５９Ａと下手側に延在する側板５９Ａには、開口部５２Ｃが形成され、開口部５２Ｃは、着脱自在な左右方向の縦断面が三角形状の覆い材５２Ｄで覆われている。また、下側前ドラム５３の下側の頂部５８Ａから回転方向の上手側に延在する側板５９Ａと下手側に延在する側板５９Ａには、開口部５３Ｃが形成され、開口部５３Ｃは、着脱自在な左右方向の縦断面が三角形状の覆い材５３Ｄで覆われている。これにより、開口部５２Ｃ、５３Ｃから器具を挿入して、前ドラム５１をインペラ４０の後板４２と固定部８０の前板８１に容易に連結することができる。なお、インペラ４０から移送されてくる穀稈を効率よく後方に搬送するために、前ドラム５１の頂部５８Ａをインペラ４０の搬送螺旋４４の終端部の後方に位置させるのが好ましい。 An opening 52C is formed in a side plate 59A extending to the upper side in the rotation direction and a side plate 59A extending to the lower side from the upper top portion 58A of the upper front drum 52, and the opening 52C is detachable in the left-right direction. The vertical cross section of the above is covered with a triangular covering material 52D. Further, an opening 53C is formed in the side plate 59A extending to the upper side in the rotation direction and the side plate 59A extending to the lower side from the lower top portion 58A of the lower front drum 53, and the opening 53C is detachable. A free vertical cross section in the left-right direction is covered with a triangular covering material 53D. As a result, the instrument can be inserted through the openings 52C and 53C to easily connect the front drum 51 to the rear plate 42 of the impeller 40 and the front plate 81 of the fixing portion 80. In addition, in order to efficiently transport the grain culm transferred from the impeller 40 to the rear, it is preferable to position the top portion 58A of the front drum 51 behind the end portion of the transport spiral 44 of the impeller 40.

前ドラム５１の上側前連結部５２Ａと下側前連結部５３Ａの前面は、インペラ４０の後板４２の後面に上側前連結部５２Ａと下側前連結部５３Ａの後方から前方に挿入されるボルトによって連結されている。また、前ドラム５１の上側後連結部５２Ｂと下側後連結部５３Ｂの後面は、固定部８０の前板８１の前面に前板８１の後方から前方に挿入されるボルトによって連結されている。 The front surface of the upper front connecting portion 52A and the lower front connecting portion 53A of the front drum 51 is a bolt inserted from the rear to the front of the upper front connecting portion 52A and the lower front connecting portion 53A on the rear surface of the rear plate 42 of the impeller 40. Are linked by. Further, the rear surfaces of the upper rear connecting portion 52B and the lower rear connecting portion 53B of the front drum 51 are connected to the front surface of the front plate 81 of the fixing portion 80 by bolts inserted from the rear to the front of the front plate 81.

後ドラム５５は、後ドラム５５の一側を形成する上側後ドラム５６と他側を形成する下側後ドラム５７から形成されている。なお、上側後ドラム５６の側板５９Ｂの下端部と下側後ドラム５７は側板５９Ｂの上端部をボルトで連結することにより後ドラム５５を形成することができる。これにより、後ドラム５５を容易に形成することができる。なお、本実施形態においては、前ドラム５１と後ドラム５５の径方向の大きさを同一にしているが、後ドラム５５の径方向の大きさを前ドラム５１よりも小さく形成することもできる。また、本明細書では側板５９Ａと側板５９Ｂを総称して側板（請求項の「ドラム側板」）５９という。 The rear drum 55 is formed from an upper rear drum 56 forming one side of the rear drum 55 and a lower rear drum 57 forming the other side. The lower end of the side plate 59B of the upper rear drum 56 and the lower rear drum 57 can form the rear drum 55 by connecting the upper ends of the side plates 59B with bolts. Thereby, the rear drum 55 can be easily formed. In the present embodiment, the radial size of the front drum 51 and the rear drum 55 are the same, but the radial size of the rear drum 55 can be made smaller than that of the front drum 51. Further, in the present specification, the side plate 59A and the side plate 59B are collectively referred to as a side plate (“drum side plate” in claim) 59.

上側後ドラム５６の後端部には、径方向の内側に向かって延在する上側後連結部５６Ｂが形成されている。また、下側後ドラム５７の後端部には、径方向の内側に向かって延在する下側後連結部５７Ｂが形成されている。これにより、後ドラム５５を上側後連結部５２Ｂと下側後連結部５３Ｂを介して円筒ドラム６０の前板６１に容易に連結することができる。なお、上側後ドラム５６に上側前ドラム５２と同様な開口部を形成し、下側後ドラム５７に下側前ドラム５３と同様な開口部を形成することもできる。 At the rear end of the upper rear drum 56, an upper rear connecting portion 56B extending inward in the radial direction is formed. Further, at the rear end portion of the lower rear drum 57, a lower rear connecting portion 57B extending inward in the radial direction is formed. As a result, the rear drum 55 can be easily connected to the front plate 61 of the cylindrical drum 60 via the upper rear connecting portion 52B and the lower rear connecting portion 53B. It is also possible to form an opening similar to the upper front drum 52 in the upper rear drum 56 and an opening similar to the lower front drum 53 in the lower rear drum 57.

後ドラム５５の上側後連結部５６Ｂと下側後連結部５７Ｂの前部の内周面は、固定部８０の側板８２の外周面に上側後連結部５６Ｂと下側後連結部５７Ｂの径方向の外方から内方に挿入されるボルトによって連結されている。また、後ドラム５５の上側後連結部５６Ｂと下側後連結部５７Ｂの後面は、円筒ドラム６０の前板６１の前面に前板６１の後方から前方に挿入されるボルトによって連結されている。 The inner peripheral surface of the upper rear connecting portion 56B and the lower rear connecting portion 57B of the rear drum 55 is on the outer peripheral surface of the side plate 82 of the fixing portion 80 in the radial direction of the upper rear connecting portion 56B and the lower rear connecting portion 57B. It is connected by a bolt that is inserted from the outside to the inside of the. Further, the rear surfaces of the upper rear connecting portion 56B and the lower rear connecting portion 57B of the rear drum 55 are connected to the front surface of the front plate 61 of the cylindrical drum 60 by bolts inserted from the rear to the front of the front plate 61.

（円筒ドラム）
円筒ドラム６０は、円形状の前板６１と、前板６１の後面に形成された円筒状の筒部６２と、筒部６２の後部を覆う円形状の覆い材６３と、覆い材６３の後面に装着される前後方向の縦断面がチェンネル形状の後板６４から形成されている。これにより、扱胴１１に搬送されてきた穀稈が回転軸３０の後部に巻き付くのを防止することができる。 (Cylindrical drum)
The cylindrical drum 60 has a circular front plate 61, a cylindrical tubular portion 62 formed on the rear surface of the front plate 61, a circular covering material 63 covering the rear portion of the tubular portion 62, and a rear surface of the covering material 63. A longitudinal cross section in the front-rear direction is formed from a channel-shaped rear plate 64. This makes it possible to prevent the grain culm conveyed to the handling cylinder 11 from wrapping around the rear portion of the rotating shaft 30.

（ロータ）
ロータ７０は、複数の丸棒状の扱歯７１と、扱歯７１の基部を支持する丸パイプ状の支持部７２と、支持部７２の前部を支持する前後方向の縦断面がアングル形状の前ステー７３と、支持部７２の後部を支持する前後方向の縦断面がアングル形状の後ステー７４と、支持部７２の前後方向の中心部を支持する前後方向の縦断面がチェンネル形状の中間ステー７５から形成されている。これにより、ロータ７０の前部を前ステー７３を介してインペラ４０の後板４２の後面に容易に連結することができ、ロータ７０の後部を後ステー７４を介して円筒ドラム６０の前板６１の前面に容易に連結することができ、ロータ７０の前後方向の中間部を中間ステー７５を介して固定部８０の側板８２に容易に連結することができる。 (Rotor)
The rotor 70 has a plurality of round bar-shaped handling teeth 71, a round pipe-shaped supporting portion 72 that supports the base of the handling teeth 71, and a front having an angled vertical cross section in the front-rear direction that supports the front portion of the support portion 72. An intermediate stay 75 having an angle-shaped vertical cross section in the front-rear direction that supports the rear portion of the stay 73 and the support portion 72, and a channel-shaped vertical cross section in the front-rear direction that supports the central portion in the front-rear direction of the support portion 72. Is formed from. As a result, the front portion of the rotor 70 can be easily connected to the rear surface of the rear plate 42 of the impeller 40 via the front stay 73, and the rear portion of the rotor 70 can be easily connected to the rear surface of the rear plate 42 of the impeller 40 via the rear stay 74. The intermediate portion in the front-rear direction of the rotor 70 can be easily connected to the side plate 82 of the fixing portion 80 via the intermediate stay 75.

支持部７２には、前後方向に所定の間隔を隔てて扱歯７１が支持され、支持部７２の後部には、穀稈を扱胴１１の後部から外部に勢いよく排出するために板形状の跳ね出し板７６が着脱自在に支持されている。これにより、ドラム５０の後部に搬送されてきた穀稈を扱胴１１の外部に勢いよく放出することができる。 The support portion 72 supports the handling teeth 71 at predetermined intervals in the front-rear direction, and the rear portion of the support portion 72 has a plate shape for vigorously discharging the grain culm from the rear portion of the handling cylinder 11 to the outside. The protrusion plate 76 is detachably supported. As a result, the grain culm conveyed to the rear part of the drum 50 can be vigorously discharged to the outside of the handling cylinder 11.

図７に示すように、前ステー７３は、インペラ４０の後板４２に連結される板状の前連結部７３Ａと、前連結部７３Ａの外周部から後方に向かって延在して支持部７２の前部を支持する板状の前支持部７３Ｂから形成されている。前連結部７３Ａには、前ドラム５１の頂部５８Ａと頂部５８Ａの間の側板５９Ａに平行な長軸を有する前長穴７３Ｃが形成されている。また、前連結部７３Ａは、後板４２の後面に前連結部７３Ａの後方から挿入される２本のボルトによって連結されている。これにより、前ステー７３の前連結部７３Ａを前ドラム５１の側板５９Ａに平行に移動させることができる。 As shown in FIG. 7, the front stay 73 has a plate-shaped front connecting portion 73A connected to the rear plate 42 of the impeller 40 and a supporting portion 72 extending rearward from the outer peripheral portion of the front connecting portion 73A. It is formed from a plate-shaped front support portion 73B that supports the front portion of the. The front connecting portion 73A is formed with a front slot 73C having a long axis parallel to the side plate 59A between the top 58A and the top 58A of the front drum 51. Further, the front connecting portion 73A is connected to the rear surface of the rear plate 42 by two bolts inserted from the rear of the front connecting portion 73A. As a result, the front connecting portion 73A of the front stay 73 can be moved in parallel with the side plate 59A of the front drum 51.

後ステー７４は、円筒ドラム６０の前板６１に連結される板状の後連結部７４Ａと、後連結部７４Ａの外周部から前方に向かって延在して支持部７２の後部を支持する板状の後支持部７４Ｂから形成されている。後連結部７４Ａには、後ドラム５５の頂部５８Ａと頂部５８Ａの間の側板５９Ｂに平行な長軸を有する後長穴７４Ｃが形成されている。また、後連結部７４Ａは、前板６１の前面に後連結部７４Ａの前方から挿入される２本のボルトによって連結されている。これにより、後ステー７４の後連結部７４Ａを後ドラム５５の側板５９Ｂに平行に移動させることができる。また、本明細書では頂部５８Ａと頂部５８Ｂを総称して頂部５８という。 The rear stay 74 is a plate-shaped rear connecting portion 74A connected to the front plate 61 of the cylindrical drum 60, and a plate extending forward from the outer peripheral portion of the rear connecting portion 74A to support the rear portion of the supporting portion 72. It is formed from a rear support portion 74B in the shape of a cylinder. The rear connecting portion 74A is formed with a rear elongated hole 74C having a long axis parallel to the side plate 59B between the top 58A and the top 58A of the rear drum 55. Further, the rear connecting portion 74A is connected to the front surface of the front plate 61 by two bolts inserted from the front of the rear connecting portion 74A. As a result, the rear connecting portion 74A of the rear stay 74 can be moved in parallel with the side plate 59B of the rear drum 55. Further, in the present specification, the top 58A and the top 58B are collectively referred to as the top 58.

図８に示すように、中間ステー７５は、固定部８０の側板８２に連結される板状の中間連結部７５Ａと、中間連結部７５Ａの前部と後部からそれぞれ径方向の外側に向かって延在して支持部７２の中間部を支持する板状の中間支持部７５Ｂから形成されている。中間連結部７５Ａには、固定部８０の側板８２に平行な長軸を有する中間長穴７５Ｃが形成されている。また、中間連結部７５Ａは、側板８２の外周面に中間連結部７５Ａの外方から挿入される２本のボルトによって連結されている。これにより、中間ステー７５の中間連結部７５Ａを固定部８０の側板８２に沿って移動させることができる。 As shown in FIG. 8, the intermediate stay 75 extends radially outward from the plate-shaped intermediate connecting portion 75A connected to the side plate 82 of the fixing portion 80 and the front and rear portions of the intermediate connecting portion 75A, respectively. It is formed from a plate-shaped intermediate support portion 75B that is present and supports the intermediate portion of the support portion 72. An intermediate slot 75C having a long axis parallel to the side plate 82 of the fixing portion 80 is formed in the intermediate connecting portion 75A. Further, the intermediate connecting portion 75A is connected to the outer peripheral surface of the side plate 82 by two bolts inserted from the outside of the intermediate connecting portion 75A. As a result, the intermediate connecting portion 75A of the intermediate stay 75 can be moved along the side plate 82 of the fixing portion 80.

中間ステー７５の中間支持部７５Ｂの径方向の長さを、前ステー７３の前支持部７３Ｂと後ステー７４の後支持部７４Ｂの径方向の長さよりも長く形成するこの好ましい。これにより、前ドラム５１とロータ７０の間に形成される空間と後ドラム５５とロータ７０の間に形成される空間の連続性が確保されて、穀稈を前ドラム５１から後ドラム５５に効率良く搬送することができる。 This is preferable in that the radial length of the intermediate support portion 75B of the intermediate stay 75 is formed longer than the radial length of the front support portion 73B of the front stay 73 and the rear support portion 74B of the rear stay 74. As a result, the continuity of the space formed between the front drum 51 and the rotor 70 and the space formed between the rear drum 55 and the rotor 70 is ensured, and the grain culm is efficiently transferred from the front drum 51 to the rear drum 55. Can be transported well.

図７，８に示すように、前ステー７３の前連結部７３Ａを前ドラム５１の側板５９Ａに平行に、後ステー７４の後連結部７４Ａを後ドラム５５の側板５９Ｂに平行に、中間ステー７５の中間連結部７５Ａを固定部８０の側板８２に沿って回転方向の上手側位置Ａから下手側位置Ｂに、あるいは、下手側位置Ｂから上手側位置Ａに移動させてロータ７０の扱歯７１の歯先の回転軌跡の外周径と、扱歯７１の後退角を変化させることができる。 As shown in FIGS. 7 and 8, the front connecting portion 73A of the front stay 73 is parallel to the side plate 59A of the front drum 51, the rear connecting portion 74A of the rear stay 74 is parallel to the side plate 59B of the rear drum 55, and the intermediate stay 75. The intermediate connecting portion 75A of the rotor 70 is moved along the side plate 82 of the fixing portion 80 from the upper side position A to the lower side position B in the rotational direction, or from the lower side position B to the upper side position A, and the handling teeth 71 of the rotor 70. The outer peripheral diameter of the rotation locus of the tooth tip and the receding angle of the handling tooth 71 can be changed.

前ステー７３は、前連結部７３Ａの回転方向の上手側端部が側板５９Ａの回転方向の上手側端部に位置する上手側位置Ａと前連結部７３Ａの回転方向の下手側端部が側板５９Ａの回転方向の下手側端部に位置する下手側位置Ｂの間を移動させることができる。 In the front stay 73, the upper end of the front connecting portion 73A in the rotation direction is located at the upper end of the side plate 59A in the rotation direction, and the lower end of the front connecting portion 73A in the rotation direction is the side plate. It can be moved between the lower side position B located at the lower side end portion in the rotation direction of 59A.

中間ステー７５は、中間連結部７５Ａの回転方向の上手側端部が側板８２の回転方向の上手側端部に位置する上手側位置Ａと中間連結部７５Ａの回転方向の下手側端部が側板８２の回転方向の下手側端部に位置する下手側位置Ｂの間を移動させることができる。 In the intermediate stay 75, the upper end of the intermediate connecting portion 75A in the rotational direction is located at the upper end of the side plate 82 in the rotational direction, and the lower end of the intermediate connecting portion 75A in the rotational direction is the side plate. It is possible to move between the lower side position B located at the lower side end portion in the rotation direction of 82.

後ステー７４は、後連結部７４Ａの回転方向の上手側端部が側板５９Ｂの回転方向の上手側端部に位置する上手側位置Ａと後連結部７４Ａの回転方向の下手側端部が側板５９Ｂの回転方向の下手側端部に位置する下手側位置Ｂの間を移動させることができる。 In the rear stay 74, the upper end of the rear connecting portion 74A in the rotational direction is located at the upper end of the side plate 59B in the rotational direction, and the lower end of the rear connecting portion 74A in the rotational direction is the side plate. It can be moved between the lower side positions B located at the lower side end portion in the rotation direction of 59B.

これにより、圃場に植立された穀稈が多く、刈取前処理装置３から脱穀装置４に多量の穀稈が搬送される場合には、前ステー７３と、後ステー７４と、中間ステー７５を回転方向の上手側位置Ａから下手側位置Ｂに移動させて、扱歯７１の歯先の回転軌跡の外周径を小さくし、扱歯７１の後退角を大きくして刈取前処理装置３から脱穀装置４に搬送された多量の穀稈を効率良く脱穀することができる。 As a result, when many culms are planted in the field and a large amount of culms are transported from the pre-cutting treatment device 3 to the threshing device 4, the front stay 73, the rear stay 74, and the intermediate stay 75 are used. By moving from the upper side position A to the lower side position B in the rotation direction, the outer peripheral diameter of the rotation locus of the tooth tip of the handling tooth 71 is reduced, the receding angle of the handling tooth 71 is increased, and threshing is performed from the pre-cutting processing device 3. A large amount of grain culms transported to the device 4 can be efficiently threshed.

また、圃場に植立された穀稈が少なく、刈取前処理装置３から脱穀装置４に少量の穀稈が搬送される場合には、前ステー７３と、後ステー７４と、中間ステー７５を回転方向の下手側位置Ｂから上手側位置Ａに移動させて、扱歯７１の歯先の回転軌跡の外周径を大きくし、扱歯７１の後退角を小さくして刈取前処理装置３から脱穀装置４に搬送された少量の穀稈を効率良く脱穀することができる。 Further, when there are few culms planted in the field and a small amount of culms are transported from the pre-cutting treatment device 3 to the threshing device 4, the front stay 73, the rear stay 74, and the intermediate stay 75 are rotated. By moving from the lower side position B in the direction to the upper side position A, the outer peripheral diameter of the rotation locus of the tooth tip of the handling tooth 71 is increased, the receding angle of the handling tooth 71 is reduced, and the threshing device is removed from the pre-cutting processing device 3. A small amount of grain culm transported to 4 can be efficiently threshed.

前ステー７３の前連結部７３Ａの回転方向の下手側部の上部には切欠き部７３Ｄが設けられ、前支持部７３Ｂの回転方向の幅は前連結部７３Ａの回転方向の幅よりも小さく形成されている。これにより、フィーダハウス３Ｄから扱室１０に搬送されてきた穀稈が前ステー７３の前支持部７３Ｂに絡むのを防止して穀稈を扱室１０の後方に効率良く搬送させることができる。 A notch 73D is provided in the upper part of the lower side portion of the front connecting portion 73A of the front stay 73 in the rotation direction, and the width of the front support portion 73B in the rotation direction is formed to be smaller than the width of the front connecting portion 73A in the rotation direction. Has been done. As a result, the grain culms transported from the feeder house 3D to the handling chamber 10 can be prevented from being entangled with the front support portion 73B of the front stay 73, and the grain culms can be efficiently transported to the rear of the handling chamber 10.

中間ステー７５の中間支持部７５Ｂの回転方向の下手側部には切欠き部７５Ｄが設けられ、中間支持部７５Ｂの回転方向の下手側部は回転方向の下手側部から径方向の外側に延在するほど回転方向の上手側に向かって直線状に形成されている。これにより、フィーダハウス３Ｄから扱室１０に搬送されてきた穀稈が中間ステー７５の中間支持部７５Ｂに絡むのを防止して穀稈を扱室１０の後方に効率良く搬送させることができる。 A notch 75D is provided on the lower side portion of the intermediate support portion 75B of the intermediate stay 75 in the rotation direction, and the lower side portion of the intermediate support portion 75B in the rotation direction extends radially outward from the lower side portion in the rotation direction. The more it exists, the more linearly it is formed toward the upper side in the direction of rotation. As a result, the grain culms transported from the feeder house 3D to the handling chamber 10 can be prevented from being entangled with the intermediate support portion 75B of the intermediate stay 75, and the grain culms can be efficiently transported to the rear of the handling chamber 10.

回転軸３０の軸心視において、中間支持部７５Ｂの回転方向の下手側部と側板８２の傾斜角度θ１を、回転方向の下手側に隣接する側板５９Ｂと側板５９Ｂの傾斜角度θ２よりも小さく形成するのが好ましい。これにより、フィーダハウス３Ｄから扱室１０に搬送されてきた穀稈が中間ステー７５の中間支持部７５Ｂに絡むのをより防止して穀稈を扱室１０の後方により効率良く搬送させることができる。 In the axial view of the rotation shaft 30, the inclination angle θ1 of the lower side portion of the intermediate support portion 75B in the rotation direction and the side plate 82 is formed to be smaller than the inclination angle θ2 of the side plate 59B and the side plate 59B adjacent to the lower side in the rotation direction. It is preferable to do so. As a result, it is possible to prevent the grain culms transported from the feeder house 3D to the handling chamber 10 from being entangled with the intermediate support portion 75B of the intermediate stay 75, and to transport the grain culms more efficiently behind the handling chamber 10. ..

後ステー７４の後連結部７４Ａの回転方向の下手側部の上部には切欠き部７４Ｄが設けられ、後支持部７４Ｂの回転方向の幅は後連結部７４Ａの回転方向の幅よりも小さく形成されている。これにより、扱室１０の後方に搬送されてきた穀稈が後ステー７４の後支持部７４Ｂに絡むのを防止して排藁処理室に効率良く漏下させることができる。 A notch 74D is provided in the upper part of the lower side portion of the rear connecting portion 74A in the rotation direction of the rear stay 74, and the width of the rear support portion 74B in the rotation direction is formed to be smaller than the width of the rear connecting portion 74A in the rotation direction. Has been done. As a result, the grain culm conveyed to the rear of the handling chamber 10 can be prevented from being entangled with the rear support portion 74B of the rear stay 74, and can be efficiently leaked to the straw disposal chamber.

扱歯７１は、回転方向に対して所定の後退角を持って、支持部７２に支持されている。これにより、インペラ４０からドラム５０に移送されてきた穀稈をドラム５０の前部から後部に効率よく搬送することができる。なお、図中の矢印は、扱胴１１の回転方向を示している。 The handling tooth 71 is supported by the support portion 72 with a predetermined receding angle with respect to the rotation direction. As a result, the grain culm transferred from the impeller 40 to the drum 50 can be efficiently transported from the front portion to the rear portion of the drum 50. The arrows in the figure indicate the rotation direction of the handling cylinder 11.

扱歯７１は、支持部７２の外周部と内周部の２箇所に支持されている。これにより、扱歯７１を支持部７２に強固に固定することができる。また、支持部７２の前下部は、前ステー７３の外周部に形成された半円弧状の溝内に固定され、支持部７２の中間下部は、中間ステー７５の外周部に形成された半円弧状の溝内に固定され、支持部７２の後下部は、後ステー７４の外周部に形成された半円弧状の溝内に固定されている。これにより、支持部７２を前ステー７３と、中間ステー７５と、後ステー７４で強固に支持することができる。 The handling teeth 71 are supported at two locations, an outer peripheral portion and an inner peripheral portion of the support portion 72. As a result, the handling tooth 71 can be firmly fixed to the support portion 72. Further, the front lower portion of the support portion 72 is fixed in a semicircular groove formed in the outer peripheral portion of the front stay 73, and the middle lower portion of the support portion 72 is a semicircle formed in the outer peripheral portion of the intermediate stay 75. It is fixed in the arc-shaped groove, and the rear lower portion of the support portion 72 is fixed in the semi-arc-shaped groove formed in the outer peripheral portion of the rear stay 74. As a result, the support portion 72 can be firmly supported by the front stay 73, the intermediate stay 75, and the rear stay 74.

図９に示すように、フィーダハウス３Ｄは、昇降シリンダ（図示省略）によってフィーダハウス３Ｄの後部に設けられた左右方向に延在する回転軸９０を中心として上下方向に移動させられる。 As shown in FIG. 9, the feeder house 3D is moved in the vertical direction around a rotation shaft 90 extending in the left-right direction provided at the rear portion of the feeder house 3D by an elevating cylinder (not shown).

フィーダハウス３Ｄの枠体の後部には、脱穀装置４に向かって延在する可撓性の漏下防止部材９１が設けられ、脱穀装置４の前壁には漏下防止部材９１の下方に向かって延在する入口漏斗９２が設けられ、入口漏斗９２の左右両側には前後方向の縦断面が略Ｕ字形状の懐９３が設けられている。なお、フィーダハウス３Ｄの下降時には、漏下防止部材９１の後部は入口漏斗９２の上面に密着するが、フィーダハウス３Ｄの上昇時には、漏下防止部材９１の後部と入口漏斗９２の上面の間にわずかな隙間が形成される場合が有る。 A flexible leak-preventing member 91 extending toward the threshing device 4 is provided at the rear of the frame of the feeder house 3D, and the front wall of the threshing device 4 faces below the leak-preventing member 91. An extension funnel 92 is provided, and a pocket 93 having a substantially U-shaped vertical cross section in the front-rear direction is provided on both the left and right sides of the entrance funnel 92. When the feeder house 3D is lowered, the rear part of the leak prevention member 91 is in close contact with the upper surface of the inlet funnel 92, but when the feeder house 3D is raised, the rear portion of the leak prevention member 91 is between the upper surface of the inlet funnel 92. A slight gap may be formed.

選別室２０の前壁における唐箕２５の対向する部位には、開閉自在なケーシング９５が設けられている。ケーシング９５は、ケーシング９５の下部に設けられた左右方向に延在する支軸（図示省略）を中心として開閉させることができ、ケーシング９５を開放した場合には、ケーシング９５の先端部は、入口漏斗９２の先端部よりも前側に位置する。これにより、コンバインの旋回時や一定速度での走行時等のフィーダハウス３Ｄの上昇時には、ケーシング９５を開放して、漏下防止部材９１と入口漏斗９２の間に形成される隙間から漏下してくる籾等の穀粒を回収して回収ロスを抑制することができる。 A casing 95 that can be opened and closed is provided at a portion of the front wall of the sorting chamber 20 facing the wall insert 25. The casing 95 can be opened and closed around a support shaft (not shown) extending in the left-right direction provided at the lower part of the casing 95, and when the casing 95 is opened, the tip portion of the casing 95 is an inlet. It is located in front of the tip of the funnel 92. As a result, when the feeder house 3D rises when the combine is turning or traveling at a constant speed, the casing 95 is opened and leaks from the gap formed between the leak prevention member 91 and the inlet funnel 92. It is possible to collect grains such as paddy that come and suppress recovery loss.

３０回転軸
４２後板（第１プレート）
５０ドラム
５１前ドラム
５５後ドラム
５９側板（ドラム側板）
６１前板（第２プレート）
７１扱歯
７２支持部
７３前ステー
７３Ａ前連結部
７３Ｂ前支持部
７３Ｃ前長穴
７４後ステー
７４Ａ後連結部
７４Ｂ後支持部
７４Ｃ後長穴
７５中間ステー
７５Ａ中間連結部
７５Ｂ中間支持部
７５Ｃ中間長穴
８０固定部
８２側板（固定部側板）
θ１傾斜角度
θ２傾斜角度 30 Rotating shaft 42 Rear plate (1st plate)
50 Drum 51 Front drum 55 Rear drum 59 Side plate (drum side plate)
61 Front plate (second plate)
71 Teeth 72 Support part 73 Front stay 73A Front connecting part 73B Front support part 73C Front long hole 74 Rear stay 74A Rear connecting part 74B Rear support part 74C Rear long hole 75 Intermediate stay 75A Intermediate connecting part 75B Intermediate support part 75C Intermediate length Hole 80 Fixed part 82 Side plate (Fixed part side plate)
θ1 tilt angle θ2 tilt angle

Claims

A circular first plate (42) is provided at the front portion of the rotating shaft (30) extending in the front-rear direction, and a circular second plate (61) is provided at the rear portion of the rotating shaft (30). In the handling cylinder of the threshing device in which a drum (50) having a hexagonal vertical cross section in the left-right direction is erected on the 1st plate (42) and the 2nd plate (61).
A plurality of handling teeth (71) are provided on the outer peripheral portion of the drum side plate (59) of the drum (50) in the first plate (42) and the second plate (61) in the axial view on the rotation axis (30). An upright support (72) is provided,
The front portion of the support portion (72) is connected to the first plate (42) via the front stay (73).
The rear portion of the support portion (72) is connected to the second plate (61) via the rear stay (74).
A front elongated hole (73C) having a long axis parallel to the drum side plate (59) is formed in the front connecting portion (73A) of the front stay (73) in the axial view of the rotating shaft (30).
A rear long hole (74C) having a long axis parallel to the drum side plate (59) was formed in the rear connecting portion (74A) of the rear stay (74) in the axial view of the rotating shaft (30). The handling drum of the threshing device featuring.

A fixing portion (80) having a hexagonal vertical cross section in the left-right direction is provided at an intermediate portion between the first plate (42) and the second plate (61) on the rotation axis (30).
The drum (50) is mounted on the first plate (42) and the fixing portion (80), and the front drum (51) having a hexagonal vertical cross section in the left-right direction, the fixing portion (80), and the second plate. The vertical cross section in the left-right direction erected in (61) is formed by a hexagonal rear drum (55).
An intermediate portion in the front-rear direction of the support portion (72) is connected to the fixing portion side plate (82) of the fixing portion (80) via an intermediate stay (75).
The first aspect of the present invention, wherein an intermediate slot (75C) having a long axis parallel to the left-right direction of the fixing portion side plate (82) is formed in the intermediate connecting portion (75A) of the intermediate stay (75) in a plan view. The handling barrel of the threshing device.

A claim formed by tilting the lower side portion of the intermediate support portion (75B) of the intermediate stay (75) in the rotation direction linearly toward the upper side in the rotation direction in the axial view of the rotation axis (30). The handling barrel of the threshing device according to Item 2.

3. Claim 3 in which the inclination angle (θ1) of the lower side portion in the rotation direction of the intermediate support portion (75B) is smaller than the inclination angle (θ2) of the fixed portion side plate (82) adjacent to the lower side in the rotation direction. The handling barrel of the threshing device described.

In the axial view of the rotating shaft (30), the radial length of the intermediate support portion (75B) of the intermediate stay (75) is set to the front support portion (73B) and the rear stay (73B) of the front stay (73). 74) The handling cylinder of the threshing device according to any one of claims 2 to 4, which is formed to be longer than the radial length of the rear support portion (74B).