JP2892314B2 - Threshing and sorting equipment - Google Patents

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】本発明は、コンバイン等にお
ける脱穀選別装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for threshing and sorting in a combine or the like.

【０００２】[0002]

【従来の技術】従来から、脱穀後における穀粒と藁屑と
を選別するため、扱室の下方に形成した選別風路に揺動
選別機構を設け、該揺動選別機構の下方に唐箕フアンを
配置し、該唐箕フアンからの選別風を揺動選別機構に向
けて送って揺動選別作用と風選別作用とを与える一方、
揺動選別機構の後端部に集まる藁屑を前記選別風と共に
吸引フアンにて排塵口に吸い出して藁屑及び排塵の排出
を促進するようにすることは、実開昭５２−８７５８１
号公報や実開昭５９−５０２３９号公報等において公知
である。2. Description of the Related Art Conventionally, in order to separate kernels and straw chips after threshing, a swing sorting mechanism has been provided in a sorting air passage formed below a handling room, and Karan Juan is provided below the swing sorting mechanism. Is arranged, and the sorting wind from the Karamin Juan is sent to the swing sorting mechanism to provide a swing sorting action and a wind sorting action,
In order to promote the discharge of the straw chips and dust by sucking the straw chips collected at the rear end of the swinging sorting mechanism together with the sorting wind into a dust outlet with a suction fan, it is disclosed in Japanese Utility Model Publication No. 52-87581.
And Japanese Patent Application Laid-Open No. 59-50239.

【０００３】[0003]

【発明が解決しようとする課題】ところで、自走自脱式
のコンバインにおいては、圃場に植立した穀稈を刈取す
るようにコンバインを進行させつつ脱穀選別するので、
植立穀稈のない圃場面でコンバインの向きを変えるとき
には、一時的に供給穀稈量及び脱穀量が少なくなる。従
って、揺動選別機構上の穀粒混じりの藁屑（被処理物と
いう）の層の厚さが薄くなるから、風選別のための唐箕
フアンからの選別風量が多すぎると、吸引フアンを介し
て排塵口から外に放出される風量も多大になり過ぎ、揺
動選別機構の後端上から藁屑に混じって機外に排出され
る穀粒量（以下３番ロスという）が増大するという問題
があった。By the way, in a self-propelled self-removing combine, threshing and sorting are performed while the combine is advanced so as to cut the culm planted in the field.
When the direction of the combine is changed in a field scene where there is no planted grain culm, the supplied grain culm amount and the threshing amount are temporarily reduced. Therefore, the thickness of the layer of straw waste (referred to as an object to be treated) mixed with grains on the rocking sorting mechanism becomes thin. If the amount of air to be sorted from Karino Juan for wind sorting is too large, the air will pass through the suction fan. As a result, the amount of air discharged from the dust outlet to the outside becomes too large, and the amount of grain discharged from the rear end of the oscillating sorting mechanism to the outside of the machine by mixing with the straw (hereinafter referred to as “3rd loss”) increases. There was a problem.

【０００４】この３番ロスを減少させるために、従来の
技術では、選別風路に唐箕シャッタを設け、唐箕フアン
からの選別風量を減少させるように構成していたが、選
別風量の減少量が少なすぎると、３番ロスは低下せず、
逆に選別風量の減少量が多すぎると、扱室直下の揺動選
別機構部分を通過する選別風量が少なくなり過ぎて、風
選別作用を充分に与えることができないというように、
適切な選別能力を確保しつつ、３番ロスを低減すること
が難しかった。また、揺動選別機構における選別風の通
過量を制限するため、揺動選別機構におけるチャフシー
ブの傾斜角度（開口角度）を狭めたり、前記揺動選別機
構の被処理物量の減少に応じて揺動振幅量を小さくした
り、揺動速度を低下させると、当該揺動選別機構の後端
部に移行する藁屑量が多くなり、この藁屑に混じる穀粒
も多くなって機外に排出される穀粒が増大し、３番ロス
が増大すると言う問題があった。In order to reduce the third loss, according to the prior art, a Karamin shutter is provided in the sorting air passage so as to reduce the amount of the sorting air from the Karan Juan. If it is too small, the third loss will not decrease,
Conversely, if the amount of reduction in the sorting air amount is too large, the amount of sorting air passing through the swing sorting mechanism part immediately below the handling room will be too small, and it will not be possible to give sufficient wind sorting action.
It was difficult to reduce the third loss while securing appropriate sorting ability. Further, in order to limit the amount of the sorting wind that passes through the swing sorting mechanism, the tilt angle (opening angle) of the chaff sheave in the swing sorting mechanism is reduced, or the swing sorting mechanism is swung according to the decrease in the amount of the workpiece to be processed. If the amplitude amount is reduced or the swing speed is reduced, the amount of straw chips moving to the rear end of the swing sorting mechanism increases, and the amount of grains mixed with the straw chips increases and is discharged outside the machine. There is a problem that the grain size increases and the third loss increases.

【０００５】本発明は従来のこのような事情に鑑み、コ
ンバインの回行時等、一時的に脱穀量や脱穀作業中の藁
量が減少方向に変動するのに応じて、機外に放出される
排風量を調節して３番ロスを減少できる脱穀選別装置を
提供することを目的とするもである。[0005] In view of the above circumstances, the present invention discharges outside the machine in response to a temporary fluctuation in the amount of threshing or the amount of straw during threshing operation, such as when the combine is circulating. It is another object of the present invention to provide a threshing / sorting apparatus capable of reducing the third loss by adjusting the amount of exhaust air to be discharged.

【０００６】[0006]

【課題を解決するための手段】前記目的を達成するた
め、請求項１に記載の発明は、脱穀部の扱室の下方に揺
動選別機構を備えた選別風路を形成し、前記選別風路に
連通した前記排塵風路には前記揺動選別機構の後部上方
位置に吸引フアンを設け、排塵風路から排風口に排塵す
るように構成してなる脱穀選別装置において、前記排塵
風路内には、揺動選別機構の後端側上方に、機外への排
風量を調節するための変更板を設け、脱穀量または脱穀
作業中の排藁等の脱穀被処理物の量を検出するための被
処理物量検出手段と、該被処理物量検出手段にて検出さ
れた脱穀被処理物の量が減少するのに応じて、機外への
排風を前記揺動選別機構の前方方向側に戻すようにする
連係手段とを備えたものである。In order to achieve the above object, according to the first aspect of the present invention, a sorting air path having a swing sorting mechanism is formed below a handling chamber of a threshing unit, and the sorting wind is provided. the said clean room air passage communicating with the road suction fan provided at the rear upper position of the rocking selection mechanism, the threshing sorting device consisting configured to dust-exhaust the air discharge port from Haichirifuro, the exhaust dust
In the air passage, the air is discharged outside the machine above the rear end of the swing sorting mechanism.
Provision of a change plate for adjusting the air volume, threshing amount or threshing
In order to detect the amount of threshing to be processed, such as waste straw during operation,
Processing object amount detecting means, and the processing object amount detecting means
As threshing material is reduced
Return the exhaust air to the forward direction side of the swing sorting mechanism
And a linking means .

【０００７】[0007]

【発明の実施の形態】次に本発明を自走自脱式コンバイ
ンに適用した実施形態について説明する。図１はコンバ
インの側面図であって、走行クローラ２つきの走行機体
１の前部には、分草体３、穀稈引起機構４、刈刃５、穀
稈搬送機構６等からなる刈取前処理装置７が昇降動可能
に装着されている。走行機体１の機枠８内一側には、脱
穀部の扱室９を区成し、扱室９内には扱胴１０をその回
転軸線がコンバインの進行方向に延びるように配置す
る。DETAILED DESCRIPTION OF THE INVENTION The invention will now for the application to the embodiments self self de type combined will be described. FIG. 1 is a side view of the combine, and a cutting pretreatment device including a weeding body 3, a grain stalk raising mechanism 4, a cutting blade 5, a grain stalk transport mechanism 6, and the like in front of a traveling body 1 with a traveling crawler 2. 7 is mounted so as to be able to move up and down. A handling room 9 of a threshing unit is defined on one side in the machine frame 8 of the traveling machine body 1, and a handling drum 10 is disposed in the handling room 9 so that the rotation axis thereof extends in the traveling direction of the combine.

【０００８】扱室９の前端の穀稈供給口１１には、前記
刈取前処理装置７における穀稈搬送機構６終端が臨み、
機枠８の一側には、前記穀稈供給口１１と、扱室９後端
の空穀稈排出口１２との間をつなぐ扱口に沿ってフイー
ドチェン１３を沿設し、該フイードチェン１３に株元部
を挟扼された穀稈の穂先部を扱胴１０の下周面に供給す
るいわゆる下扱式に構成する。前記フイードチェン１３
の終端に連設した排藁チェン１４の下面側には、その長
手方向に沿って排藁挟扼杆１５を上下動自在に配設し、
バネ１６にて上向き付勢して、排藁１７を図２の矢印Ａ
方向に排出するように構成されている。The end of the grain culm transport mechanism 6 of the pre-cutting device 7 faces the grain culm supply port 11 at the front end of the handling room 9.
On one side of the machine frame 8, a feed chain 13 is provided along a handle that connects the grain culm supply port 11 and an empty grain culm discharge port 12 at the rear end of the handling chamber 9. It is configured as a so-called lower-handling type in which the spike portion of the cereal stalk in which the base of the stock is sandwiched is supplied to the lower peripheral surface of the handling drum 10. The feed chain 13
On the lower surface side of the straw chain 14 connected to the end of, a straw pinching rod 15 is vertically movably arranged along its longitudinal direction,
The spring 17 is urged upward to move the straw 17 in the direction indicated by the arrow A in FIG.
It is configured to discharge in the direction.

【０００９】前記扱室９の下部には、扱室後端下部の排
塵口１８を除いてクリンプ網２０を張設する。揺動選別
機構２１は、前記扱室９の下部に当該扱室の左右幅と略
同じ幅に形成された選別風路２２内に配設され、リンク
２３及び図示しない揺動駆動部を介して扱胴１０の軸線
方向に沿って前後揺動するように構成されている。揺動
選別機構２１は、クリンプ網２０の下部から後方に向か
って斜め下向きに傾斜するフイードパン２４と、該フイ
ードパン２４の後端から排塵口１８又はそれより後方に
向かって斜め上向きに傾斜配列されたグレンシーブ２
５、その上部に配列されたチャフシーブ２６、ストロー
ラック等並びに揺動枠２７の後部に後向きに延びる篩線
２８等から構成されている。A crimping net 20 is provided under the handling room 9 except for a dust outlet 18 at a lower rear end of the handling room. The swing sorting mechanism 21 is disposed in a sorting air passage 22 formed at a lower portion of the handling room 9 to have substantially the same width as the left and right widths of the handling room, and is provided via a link 23 and a swing driving unit (not shown). It is configured to swing back and forth along the axial direction of the handling cylinder 10. The swing sorting mechanism 21 is provided with a feed pan 24 inclined obliquely downward from the lower portion of the crimping net 20 to the rear, and an inclined arrangement obliquely upward from the rear end of the feed pan 24 toward the dust outlet 18 or rearward. Glensieve 2
5, a chaff sheave 26, a straw rack and the like arranged on the top thereof, and a sieve wire 28 extending rearward to the rear of the swing frame 27, and the like.

【００１０】この揺動選別機構２１の下部には、風を前
記グレンシーブ２５を通過させる唐箕フアン３２を設
け、後揺動選別機構２１の後端上部の排塵風路２９に
は、横断流型の吸引フアン３０を設け、排塵風路２９か
ら排風口３１に（図２の矢印Ｂ方向に）排塵、排風する
ように構成している。前記前記揺動選別機構２１の下部
には、前記唐箕フアン３２につづいて、グレンシーブ２
５からの漏下物（穀物）を受ける１番コンベヤ３４付の
１番受樋３３及び２番コンベヤ３５付の２番受樋３６を
配設し、該２番受樋３６の一端部にはこれに連設した２
番還元スロワー３７を設け、機枠の一側には２番還元ス
ロワー３７から扱室９に連通する２番還元スロワー通路
３８を設ける。At the lower part of the oscillating sorting mechanism 21, there is provided a Karamin fan 32 for passing the wind through the above-mentioned Glen Sheave 25. The suction fan 30 is provided so as to discharge and exhaust air from the exhaust air path 29 to the exhaust port 31 (in the direction of arrow B in FIG. 2). In the lower part of the swing sorting mechanism 21, following the Karamin Juan 32,
A first gutter 33 with a first conveyor 34 and a second gutter 36 with a second conveyor 35 for receiving the leaked material (grain) from 5 are provided at one end of the second gutter 36. 2 which is continuously provided in this
A second reduction lower 37 is provided, and a second reduction lower passage 38 communicating from the second reduction lower 37 to the handling room 9 is provided on one side of the machine frame.

【００１１】前記排塵風路２９内には吸引フアン３０と
排風口３１との間に、変更板３９を上下回動可能に配置
し、回動モータ等のアクチェータ４０にて、変更板３９
の向きを上下変更できるように構成する。また、符号４
１は、脱穀量等の脱穀被処理物量を検出するため、前記
グレンシーブ２５等に設けた被処理物量検出手段として
の検出器で、通常の刈取脱穀作業時のような場合（脱穀
量等の脱穀被処理物量が多い時）には、前記アクチェー
タ４０を作動させて、前記吸引フアン３０からの排風
が、後方の排風口３１に向かうように上向き回動させる
（図２の実線状態参照）。そして、コンバインが１筋の
刈取作業を終えて刈取部を離れるように回行する状態等
で脱穀量等の脱穀被処理物量が減少すると、図２の二点
鎖線で示すように、変更板３９を下向きに方向変更し
て、図２の矢印Ｃ方向のように、吸引フアン３０からの
風が揺動選別機構２１の後端から前方に向かうように変
更させる。[0011] Between the suction fan 30 and exhaust outlet 31 in the Haichirifuro 29, arranged to change plate 39 to be vertically pivoted, at actuator 40 such as a rotary motor, changing plate 39
Is configured to be able to change the direction up and down. Also, reference numeral 4
1, in order to detect the threshing treated amount of threshing amount, etc., and the detector as an object to be processed amount detecting means provided in the Gurenshibu 25 etc., threshing case (threshing amount such as normal reaper threshing work When the amount of the object to be processed is large), the actuator 40 is actuated to rotate the exhaust air from the suction fan 30 upward toward the rear exhaust port 31 (see the solid line state in FIG. 2). When the combine has threshing treated amount decreases such threshing amount in a state such that Kaigyo away the reaper finishing work cutting one muscle, as indicated by the two-dot chain line in FIG. 2, changing plate 39 Is changed downward so that the wind from the suction fan 30 is directed forward from the rear end of the swing sorting mechanism 21 as indicated by the arrow C in FIG.

【００１２】なお、前記フイードチェン１３の終端に連
設した排藁チェン１４始端との連設部下方には扱室９後
端の排塵口１８に隣接する４番受口に向かって下向き傾
斜配設されて連通する４番受樋４２を形成する。また、
前記チャフシーブ２６における横桟の傾き角度は、アク
チェータ４３の作動にて変更できるように構成する。こ
れらの構成により、刈取前処理装置７の穀稈搬送機構６
からフイードチェン１３に受け継がれた刈取穀稈は、扱
室９内で脱穀され、クリンプ網２０にて漏下した脱穀物
は、前後揺動する揺動選別機構２１のチャフシーブ２６
等にて揺動選別を受け、そのとき唐箕フアン３２からの
風で風選別を受けて、精粒が１番受樋３３に集められ
る。前記フイードチェン１３の終端から出た排藁は排藁
チェン１４にて受け継がれてコンバインの後端から放出
される。The lower part of the feed chain 13 connected to the end of the straw chain 14 connected to the end of the feed chain 13 is inclined downward toward the fourth receiving port adjacent to the dust outlet 18 at the rear end of the handling chamber 9. A fourth receiving gutter 42 that is provided and communicates is formed. Also,
The inclination angle of the horizontal rail in the chaff sheave 26 is configured to be changeable by the operation of the actuator 43. With these configurations, the stalk transport mechanism 6 of the pre-cutting device 7
From the feed chain 13 is threshed in the handling room 9, and the thresh that has leaked through the crimping net 20 is removed by the chaff sheave 26 of the swing sorting mechanism 21 that swings back and forth.
And the like. At that time, the fine particles are collected in the first receiving gutter 33 by the wind from the Karamin Juan 32. Straw discharged from the end of the feed chain 13 is inherited by the straw chain 14 and discharged from the rear end of the combine.

【００１３】揺動選別機構２１上の枝梗付き粒や、排塵
口１８からの穀粒混じりの排藁、４番受樋４２からのさ
さり粒等の被処理物は、揺動選別機構２１の揺動に従っ
てその後端の篩線２８方向に送られ、篩作用を受けて藁
屑中から穀粒混じりの藁屑が２番受樋３６上に落下し、
２番還元スロワー３７から２番還元スロワー通路３８を
介して扱室９内に還元し、再度の揺動選別及び風選別作
用を受けさせるようにする。Objects to be processed, such as grains with branch stalks on the swing sorting mechanism 21, straws mixed with grains from the dust outlet 18, and sleds from the fourth gutter 42, are processed by the swing sorting mechanism 21. Is sent in the direction of the sieve line 28 at the rear end in accordance with the swing of the sifter, and the sieving action causes the straw swarf mixed with grains from the straw swarf to drop onto the second trough 36,
The second reduction lower 37 is returned to the handling chamber 9 through the second reduction lower passage 38 so as to be subjected to the rocking sorting and the wind sorting again.

【００１４】揺動選別機構２１の後端で処理しきれなか
ったものは、前記唐箕フアン３２からの風と吸引フアン
３０との協働作用により、排風口３１から機外に排出さ
れる。通常の刈取脱穀作業中等のように穀粒量が多いこ
とを検出器４１にて検出するときは、前記変更板３９の
向きを上向きにして、吸引フアン３０からの風が多量に
排風口３１から機外に出るようにする。What cannot be processed at the rear end of the swinging and sorting mechanism 21 is discharged out of the machine through an exhaust port 31 by the cooperation of the wind from the Karan fan 32 and the suction fan 30. When the detector 41 detects that the amount of grains is large, such as during normal harvesting and threshing work, the direction of the change plate 39 is directed upward, and a large amount of wind from the suction fan 30 is discharged from the exhaust port 31. Get out of the plane.

【００１５】前述のように、通常の刈取脱穀作業中で
は、揺動選別機構２１後端部上の被処理物の層厚さが厚
いのであるから、吸引フアン３０からの風を円滑に排風
口３１に導くことにより、被処理物中の藁屑だけの排出
も円滑に行える。他方、刈取作業を一旦停止してコンバ
インを回行する時のように、脱穀部からの脱穀量が一時
的に少なくなると、それを検出器４１にて検出し、アク
チェータ４０を作動させ、変更板３９の向きを下向き
（略垂直状）に回動させる。これにより、吸引フアン３
０からの風は、揺動選別機構２１の後端に向かって下向
きに変更されるので、揺動選別機構２１の後端上側にい
わゆるエアカーテンが施されたような状態となる。As described above, during normal cutting and threshing work, since the layer thickness of the object to be processed on the rear end of the swinging and sorting mechanism 21 is large, the wind from the suction fan 30 is smoothly exhausted. By leading to 31, it is possible to smoothly discharge only straw waste in the object. On the other hand, when the amount of threshing from the threshing unit is temporarily reduced, such as when the harvesting operation is temporarily stopped and the combine is circulated, this is detected by the detector 41, the actuator 40 is operated, and the change plate The direction of 39 is turned downward (substantially vertically). Thereby, the suction fan 3
Since the wind from 0 is changed downward toward the rear end of the swing sorting mechanism 21, a state in which a so-called air curtain is applied to the upper rear end of the swing sorting mechanism 21.

【００１６】前述の回行時のように脱穀量が少なくなる
ことで、揺動選別機構２１上の被処理物層が薄くなった
状態では、唐箕フアン３２からの選別風量を通常の刈取
脱穀作業中と同じよう程度にしておくと、吸引フアン３
０方向に吹き飛ばされる藁屑等の被処理物の量が多くな
るが、前述のように吸引フアン３０の後方の変更板３９
により下向き（図２の矢印Ｃ方向）に移動する風にて、
前記被処理物を揺動選別機構２１後端から２番受樋３６
方向に戻す作用を受けさせることができるから、排風口
３１から機外に排出される３番ロスが少なくなる。As the threshing amount is reduced as in the case of the above-mentioned circulation, the amount of sorting air from the Karan Juan 32 is reduced by the normal cutting and threshing operation in the state where the object layer on the swing sorting mechanism 21 is thin. If you keep the same degree as the inside, suction fan 3
Although the amount of the object to be processed such as straw waste blown in the zero direction increases, the change plate 39 behind the suction fan 30 as described above.
With the wind moving downward (in the direction of arrow C in FIG. 2),
The workpiece is moved from the rear end of the swinging sorting mechanism 21 to the second trough 36.
The third return loss to the outside from the exhaust port 31 can be reduced because the return operation can be performed.

【００１７】このように、一時的に脱穀量が少なくなっ
た場合に、選別風量を減少させたり、チャフシーブ２６
の傾き角度を減少させることなく、従って、揺動選別機
構２１による揺動選別作用や風選別作用を低下させるこ
となく、３番ロスも増大させないようにすることができ
る。これに対して、従来のように、一時的に脱穀量が少
なくなった場合に、選別風量やチャフシーブ２６の傾き
角度を減少させると、１番受樋乃至２番受樋に落下する
穀粒量が少なくなり、選別されずに揺動選別機構２１の
後端方向に送られる被搬送物の層厚さが厚くなり、結果
として、選別作用が円滑に行えない。しかし、本発明で
はその不都合が解消できるのである。As described above, when the threshing amount is temporarily reduced, the sorting air volume may be reduced or the chaff sheave 26 may be used.
Can be prevented from being reduced, and therefore, the third loss can be prevented from increasing without lowering the swing sorting action and the wind sorting action by the swing sorting mechanism 21. On the other hand, when the threshing amount is temporarily reduced as in the related art, when the sorting air volume and the inclination angle of the chaff sheave 26 are reduced, the amount of grain falling into the first or second receiving gutter is reduced. And the thickness of the conveyed object sent in the rear end direction of the swinging sorting mechanism 21 without being sorted increases, and as a result, the sorting operation cannot be performed smoothly. However, the present invention can solve the disadvantage.

【００１８】図３は吸引フアン３０を軸流フアン形式と
し、また脱穀作業中の藁量を検出する被処理物量検出手
段として、排藁チェン１４に対する挟扼杆１５の上下動
に連動する押圧杆４４を設け、脱穀作業中の藁量が少な
くなると、前記吸引フアン３０からの風向きを前記揺動
選別機構２１の後端方向へ戻すべく前記変更板３９の向
きを変更調節する連係手段として、前記押圧杆４４の下
端を軸４５を中心にして上下回動可能な変更板３９の上
端側に接当させる構成である。FIG. 3 shows a suction fan 30 of an axial fan type, and a pressing rod interlocking with the vertical movement of a clamping rod 15 with respect to a straw chain 14 as means for detecting an amount of material to be processed for detecting the amount of straw during threshing. 44, the linkage means for changing and adjusting the direction of the change plate 39 so as to return the direction of the wind from the suction fan 30 to the rear end direction of the swing sorting mechanism 21 when the amount of straw during the threshing operation is reduced, In this configuration, the lower end of the pressing rod 44 is brought into contact with the upper end side of the change plate 39 that can be turned up and down around the shaft 45.

【００１９】この構成により、排藁チェン１４部分を通
過する排藁量が多い場合は、押圧杆４４が下降すること
で変更板３９の下端が排風口３１方向に向かうようにし
て、吸引フアン３０からの風を多量に円滑に排風口３１
から機外に排出できるようにする一方、排藁チェン１４
部分を通過する排藁量が少ない（無い）場合には、押圧
杆４４が上昇し、変更板３９が吸引フアン３０の後方で
下向き回動するので、吸引フアン３０からの風を揺動選
別機構２１の後端上方向に戻し、機外への排出量を制限
する。With this configuration, when the amount of straw passing through the straw chain 14 is large, the lower end of the change plate 39 is directed toward the exhaust port 31 by lowering the pressing rod 44, so that the suction fan 30 A large amount of wind from the air outlet 31
To the outside of the machine,
When the amount of straw passing through the portion is small (not present), the pressing rod 44 rises and the change plate 39 rotates downward behind the suction fan 30, so that the wind from the suction fan 30 swings and separates. 21 to the upper rear end to limit the amount of discharge to the outside of the machine.

【００２０】これにより、揺動選別機構２１から吸引フ
アン３０方向に吹き飛ばされる藁屑等の被処理物は、吸
引フアン３０の後方の変更板３９により下向きに移動す
る風にて、前記被処理物を揺動選別機構２１後端から２
番受樋３６方向に戻す作用を受けさせることができるか
ら、排風口３１から機外に排出される３番ロスが少なく
なる。As a result, the object to be processed such as straw waste blown off from the swinging and sorting mechanism 21 in the direction of the suction fan 30 is moved downward by the change plate 39 behind the suction fan 30 by the wind moving downward. From the rear end of the swing sorting mechanism 21
Since it is possible to receive the action of returning to the guard gutter 36 direction, the third loss discharged to the outside from the exhaust port 31 is reduced.

【００２１】[0021]

【発明の作用・効果】以上に詳述したように、請求項１
に記載の発明は、脱穀部の扱室の下方に揺動選別機構を
備えた選別風路を形成し、前記選別風路に連通した前記
排塵風路には前記揺動選別機構の後部上方位置に吸引フ
アンを設け、排塵風路から排風口に排塵するように構成
してなる脱穀選別装置において、前記排塵風路内には、
揺動選別機構の後端側上方に、機外への排風量を調節す
るための変更板を設け、脱穀量または脱穀作業中の排藁
等の脱穀被処理物の量を検出するための被処理物量検出
手段と、該被処理物量検出手段にて検出された脱穀被処
理物の量が減少するのに応じて、機外への排風を前記揺
動選別機構の前方方向側に戻すようにする連係手段とを
備えたものであるから、コンバインの回向時等のよう
に、脱穀量または脱穀作業中の排藁等の脱穀被処理物の
量が一時的に少なくなると、自動的に変更板を作動させ
て、排風を前記前記揺動選別機構の前方方向側に戻すこ
とができる。従って、揺動選別機構から機外へ吹き飛ば
される藁屑などの脱穀被処理物は、変更板により、揺動
選別機構の前方方向側に戻す作用を受けさせることがで
きるから、排風口から藁屑に混じって機外に排出される
穀粒量（３番ロス）を減少させ ることができるという効
果を奏する。 Operation and Effect of the Invention As described in detail above, claim 1
In the invention described in the above, a sorting air path having a swing sorting mechanism is formed below the handling chamber of the threshing unit, and the dust exhaust air path communicating with the sorting wind path is above a rear part of the swing sorting mechanism. A suction fan is provided at a position, and in a threshing / sorting apparatus configured to discharge dust from a dust exhaust path to an exhaust port, in the dust exhaust path,
Adjust the amount of exhaust air to the outside of the machine above the rear end of the swing sorting mechanism.
Change plate for threshing amount or straw during threshing operation
Detection of the amount of processed material to detect the amount of processed material such as threshing
Means and a threshing target detected by the target amount detecting means.
As the amount of physical material decreases, the exhaust air to the outside
Linking means for returning to the front side of the dynamic sorting mechanism.
Because it is equipped, like when turning the combine
The threshing amount or the thresh-processed material such as straw during threshing work
When the amount temporarily decreases, the change plate is automatically activated.
To return the exhaust air to the forward direction side of the swing sorting mechanism.
Can be. Therefore, it is necessary to blow
Threshing materials, such as straw waste, are swung by the change plate.
The sorting mechanism can be returned to the front side.
It can be mixed with straw waste from the exhaust port and discharged outside the machine
Effect that it is Rukoto reduce the amount of grain the (third loss)
Play a fruit.

【図面の簡単な説明】[Brief description of the drawings]

【図１】コンバインの側面図である。FIG. 1 is a side view of a combine.

【図２】脱穀部の側断面図である。FIG. 2 is a side sectional view of a threshing unit.

【図３】他の実施例を示す側断面図である。FIG. 3 is a side sectional view showing another embodiment.

【符号の説明】[Explanation of symbols]

９ 扱室 １３ フイードチェン １４ 排藁チェン １５ 挟扼杆 ２１ 揺動選別機構 ２２ 選別風路 ２８ 篩線 ２９ 排塵通路 ３０ 吸引フアン ３１ 排風口 ３９ 変更板 ４０ アクチェータ ４１ 検出器 ４４ 押圧杆 9 Handling Room 13 Feed Chain 14 Straw Chain 15 Clamping Rod 21 Swing Sorting Mechanism 22 Sorting Airway 28 Sieve Line 29 Dust Passage 30 Suction Fan 31 Exhaust Port 39 Change Plate 40 Actuator 41 Detector 44 Pressing Rod

Claims (1)

(57)【特許請求の範囲】(57) [Claims] 【請求項１】 脱穀部の扱室の下方に揺動選別機構を備
えた選別風路を形成し、前記選別風路に連通した前記排
塵風路には前記揺動選別機構の後部上方位置に吸引フア
ンを設け、排塵風路から排風口に排塵するように構成し
てなる脱穀選別装置において、前記排塵風路内には、揺動選別機構の後端側上方に、機
外への排風量を調節するための変更板を設け、脱穀量ま
たは脱穀作業中の排藁等の脱穀被処理物の量を検出する
ための被処理物量検出手段と、該被処理物量検出手段に
て検出された脱穀被処理物の量が減少するのに応じて、
機外への排風を前記揺動選別機構の前方方向側に戻すよ
うにする連係手段とを備えた ことを特徴とする脱穀選別
装置。1. A sorting air path having a swing sorting mechanism is formed below a handling chamber of a threshing unit, and a rear upper position of the swing sorting mechanism is provided in the dust exhaust air path communicating with the sorting wind path. a suction fan provided in the threshing sorting device consisting configured to dust-exhaust the air discharge port from Haichirifuro, wherein the clean room air passage, the rear end above the rocking selection mechanism, machine
Provide a change plate for adjusting the amount of exhaust air to the outside, and
Or the amount of threshing target material such as straw during threshing work
Object amount detecting means for processing, and the object amount detecting means
As the amount of threshing to-be-processed detected decreases,
Return the exhaust air to the outside of the machine to the front side of the swing sorting mechanism.
Threshing sorting apparatus characterized by comprising a Unisuru linking mechanism.