JP2013179859A

JP2013179859A - Threshing apparatus

Info

Publication number: JP2013179859A
Application number: JP2012043933A
Authority: JP
Inventors: Kenichiro Takeuchi; 賢一朗竹内; Hiroshi Kugimiya; 釘宮　　啓; Atsushi Mizushima; 淳水島; Akifumi Miyamoto; 章史宮本; Hidenori Okazaki; 秀範岡崎; Hiroki Watabe; 寛樹渡部; Ikuro Ueka; 郁朗上加; Ryusuke Uchiyama; 龍介内山
Original assignee: Iseki and Co Ltd; Iseki Agricultural Machinery Mfg Co Ltd
Current assignee: Iseki and Co Ltd; Iseki Agricultural Machinery Mfg Co Ltd
Priority date: 2012-02-29
Filing date: 2012-02-29
Publication date: 2013-09-12

Abstract

PROBLEM TO BE SOLVED: To improve the maneuverability of a threshing apparatus and a combine harvester loaded with the threshing apparatus, and to improve threshing efficiency and reduce the production cost of the threshing apparatus.SOLUTION: A threshing apparatus is provided, being such that the outer side of a threshing chamber (22) is provided with a threshing port (33) via which grain culms are to be inserted into the threshing chamber (22); a feed chain (34) is provided to grip and convey grain culms along the threshing port (33); and on the rear end of the threshing chamber (22), a culm discharge port (32) via which culms after threshed following grip-conveyed by the feed chain (34) are to be discharged is provided consecutively to the threshing port (33). In this threshing apparatus, the rear end of a threshing cylinder (27) and the grip-conveyance terminal end of the feed chain (34) are laid in proximity to each other when viewed sideways of this threshing apparatus; any conveyor to relay culms after threshed is not provided behind the feed chain (34); and culms after threshed, discharged via the culm discharge port (32), are discharged, while relieved from grip by the feed chain (34), via the culm discharge port (32) toward the surface of a farm.

Description

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

従来より、コンバインに搭載された脱穀装置は、扱室に扱胴を内装し、扱室の横外側に扱口を形成すると共にこの扱口に沿ってフィードチェンを設け、扱室の後端部には、このフィードチェンによって搬送された脱穀後の排稈を排出する排稈口を備えている。 Conventionally, a threshing device mounted on a combine has a handling cylinder built in a handling chamber, a handling port is formed on the lateral side of the handling chamber, and a feed chain is provided along the handling port. Is provided with a waste outlet for discharging the waste after threshing carried by the feed chain.

また、扱室の下方には、この扱室から漏下する処理物を受けて揺動移送しながら選別する揺動選別棚を配置し、この揺動選別棚の後部上方に排塵ファンを設けている。
そして、フィードチェンの挟持搬送終端部に始端を臨ませた排藁搬送装置を、上記排塵ファンの上側を迂回して配置し、その搬送終端部を脱穀装置後方の排稈カッターや結束装置に臨ませている。 In addition, a swing sorting shelf is provided below the handling chamber to receive the processed material leaking from the handling chamber and sort it while swinging and a dust exhaust fan is provided above the swing sorting shelf. ing.
Then, the waste transporting device with the start end facing the clamping transport terminal end of the feed chain is arranged around the upper side of the dust exhaust fan, and the transport terminal is placed on the waste cutter or binding device behind the threshing device. I ’m here.

特開２００５−１４３３５６号公報JP 2005-143356 A

しかしながら、上述の従来のコンバインの脱穀装置では、扱室の後側に排塵ファンが配置されるために、この脱穀装置の全長が長くなり、コンバインの全長が長くなって圃場での機動性が低下する問題がある。 However, in the above-described conventional combine threshing device, since the dust exhaust fan is disposed on the rear side of the handling room, the total length of the threshing device is increased, the total length of the combine is increased, and mobility in the field is increased. There is a problem that decreases.

一方、脱穀装置の全長を制約した場合には、扱胴が短くなり、脱穀能率が低下する問題が生じる。
また、脱穀後の排藁を、排塵ファンを迂回して排藁カッターや結束装置に供給するために、フィードチェンとは別の排藁搬送装置を必要とし、製造コストが高くなる問題があった。 On the other hand, when the total length of the threshing device is restricted, the handling barrel is shortened, resulting in a problem that the threshing efficiency is reduced.
In addition, in order to supply the waste after threshing to the waste cutter and the bundling device by bypassing the dust exhaust fan, a waste transport device different from the feed chain is required, which increases the manufacturing cost. It was.

そして、このようにフィードチェンの挟持搬送終端部から排藁搬送装置に排藁を引き継ぐ際に、この排藁が円滑に引き継がれずに詰まりを生じ、コンバインによる刈取脱穀作業を中断せざるをえなくなる問題が生じうるものであった。 Then, when handing over the waste from the pinch transport terminal end of the feed chain to the waste transporting device in this way, the waste is not smoothly handed over, resulting in clogging, and the harvesting and threshing work by the combine must be interrupted. Problems could arise.

この発明は、上記課題を解決し、脱穀装置およびこの脱穀装置を搭載するコンバインの機動性の向上、脱穀作業能率の向上、製造原価の低減を目的とするものである。 This invention solves the said subject and aims at the improvement of the mobility of the threshing apparatus and the combine which mounts this threshing apparatus, the improvement of the threshing work efficiency, and the reduction of manufacturing cost.

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、多数の扱歯（２６）を備えた扱胴（２７）を扱室（２２）に内装し、該扱室（２２）の外側部には穀稈を扱室（２２）内に挿入する扱口（３３）を形成し、該扱口（３３）に沿って穀稈を挟持搬送するフィードチェン（３４）を設け、扱室（２２）の後端部にはフィードチェン（３４）によって挟持搬送された脱穀後の排稈を排出する排稈口（３２）を扱口（３３）に連続して形成した脱穀装置であって、該脱穀装置の側面視において前記扱胴（２７）の後端部とフィードチェン（３４）の挟持搬送終端部を近接して配置し、該フィードチェン（３４）の後側には脱穀後の排稈を引き継ぐ搬送装置を備えず、前記排稈口（３２）から排出される脱穀後の排稈が、フィードチェン（３４）による挟持を解除されながら排稈口（３２）から圃場面へ排出される構成としたことを特徴とする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.
In other words, the invention described in claim 1 includes a handling cylinder (27) provided with a large number of tooth handling teeth (26) in the handling chamber (22), and the outer portion of the handling chamber (22) handles cereals. A handling port (33) to be inserted into the chamber (22) is formed, a feed chain (34) for holding and conveying the cereals along the handling port (33) is provided, and at the rear end of the handling chamber (22) Is a threshing device in which a throat (32) for discharging the sewage after threshing sandwiched and conveyed by the feed chain (34) is formed continuously from the handling port (33), in a side view of the threshing device A rear end portion of the handling cylinder (27) and a holding and conveying end portion of the feed chain (34) are arranged close to each other, and a rear side of the feed chain (34) is provided with a transport device that takes over the culling after threshing. First, after the threshing of the waste discharged from the discharge port (32), the holding by the feed chain (34) is not released. It is obtained by a threshing device being characterized in that from al exhaust 稈口 (32) configured to be discharged to the field plane.

請求項２記載の発明は、前記フィードチェン（３４）の挟持搬送終端部に、該フィードチェン（３４）によって搬送されてきた脱穀後の排稈を該フィードチェン（３４）から分離するスクレーパ（５１）を備えたことを特徴とする請求項１記載の脱穀装置としたものである。 According to a second aspect of the present invention, there is provided a scraper (51) for separating the threshing waste after being transported by the feed chain (34) from the feed chain (34) at the clamping transport terminal end of the feed chain (34). The threshing apparatus according to claim 1, wherein the threshing apparatus is provided.

請求項３記載の発明は、前記扱胴（２７）の前部から後部にわたって扱歯（２６）を設け、該扱胴（２７）の後端部には、脱穀後の排稈を後方へ排出する複数の板体（３７）を設けたことを特徴とする請求項１または請求項２記載の脱穀装置としたものである。 According to a third aspect of the present invention, a tooth-handling (26) is provided from the front part to the rear part of the handling cylinder (27), and the waste after threshing is discharged rearward at the rear end part of the handling cylinder (27). The threshing apparatus according to claim 1 or 2, wherein a plurality of plates (37) are provided.

請求項４記載の発明は、前記扱室（２２）の下方に揺動選別棚（４１）を備え、該揺動選別棚（４１）上の塵埃を吸い出す排塵ファン（４９）を扱胴（２７）の後部の左右両側に備えた請求項１または請求項２または請求項３記載の脱穀装置としたものである。 The invention according to claim 4 includes a swing sorting shelf (41) below the handling chamber (22), and a dust exhaust fan (49) for sucking out dust on the swing sorting shelf (41). 27) The threshing apparatus according to claim 1, 2 or 3 provided on the left and right sides of the rear part.

請求項５記載の発明は、前記扱口（３３）側に備えた左側の排塵ファン（４９）をフィードチェン（３４）の挟持搬送終端部の下側に配置した請求項４記載の脱穀装置としたものである。 According to a fifth aspect of the present invention, the threshing apparatus according to the fourth aspect of the present invention, wherein the left dust exhaust fan (49) provided on the side of the handling port (33) is disposed below the clamping conveyance terminal portion of the feed chain (34). It is what.

請求項６記載の発明は、前記揺動選別棚（４１）の前部下方に選別風を送風する唐箕（４２）を備え、該唐箕（４２）からの選別風を扱胴（２７）の後端部へ向けて送風する構成とした請求項１から請求項５のいずれか一項記載の脱穀装置としたものである。 The invention according to claim 6 further includes a tang (42) for blowing the sorting air below the front part of the swing sorting shelf (41), and the sorting wind from the tang (42) is sent to the rear of the handling cylinder (27). The threshing apparatus according to any one of claims 1 to 5, wherein the air is blown toward the end portion.

請求項７記載の発明は、前記排稈口（３２）の下側に、未刈地側から既刈地側へ向けて下がり傾斜する流下案内板（５４）を設けた請求項１から請求項６のいずれか一項記載の脱穀装置としたものである。 The invention as set forth in claim 7 is characterized in that a flow guide plate (54) is provided on the lower side of the drainage port (32). The flow guide plate (54) is inclined downward from the uncut area toward the already cut area. The threshing apparatus according to any one of claims 6 to 6.

請求項８記載の発明は、前記排稈口（３２）の下側に、該排稈口（３２）から排出される排稈を受け止めて支持するドロッパ（５６）を設けた請求項１から請求項６のいずれか一項記載の脱穀装置としたものである。 The invention according to claim 8 is the invention according to claim 1, wherein a dropper (56) for receiving and supporting the waste discharged from the discharge port (32) is provided below the discharge port (32). It is set as the threshing apparatus as described in any one of claim | item 6.

請求項１記載の発明によると、脱穀装置の側面視において扱胴（２７）の後端部とフィードチェン（３４）の挟持搬送終端部を近接して配置し、フィードチェン（３４）の後側には脱穀後の排稈を引き継ぐ搬送装置を備えず、排稈口（３２）から排出される脱穀後の排稈が、フィードチェン（３４）による挟持を解除されながら排稈口（３２）から圃場面へ排出される構成としたので、脱穀装置（３）の全長をコンパクトに構成できてコンバインの機動性を向上させることができる。そして、扱胴（２７）の全長を長くでき、また、排藁搬送装置を省略してフィードチェン（３４）との引き継ぎ部での排稈の詰まりを少なくすることで、脱穀装置（３）の脱穀作業能率を高めることができる。そして、排藁搬送装置を省略することで、脱穀装置（３）およびこの脱穀装置（３）を搭載するコンバインの製造原価を低減して安価に提供することができる。 According to the first aspect of the present invention, the rear end portion of the handling cylinder (27) and the holding and conveying end portion of the feed chain (34) are arranged close to each other in the side view of the threshing device, and the rear side of the feed chain (34) Is not provided with a transport device that takes over the culling after threshing, and the threshing after threshing discharged from the throat (32) is released from the throat (32) while being held by the feed chain (34). Since it was set as the structure discharged | emitted to a field scene, the full length of a threshing apparatus (3) can be comprised compactly, and the mobility of a combine can be improved. And the full length of the barrel (27) can be lengthened, and the crushing of the waste at the takeover portion with the feed chain (34) can be reduced by omitting the waste conveying device, thereby reducing the threshing device (3). Threshing work efficiency can be increased. And by omitting a waste conveying apparatus, the manufacturing cost of a threshing apparatus (3) and a combine carrying this threshing apparatus (3) can be reduced and provided at low cost.

請求項２記載の発明によると、上記請求項１記載の発明の効果に加え、排稈口（３２）から排出される排稈を、フィードチェン（３４）の挟持搬送終端部に設けたスクレーパ（５１）によってフィードチェン（３４）から分離することで、排稈を圃場面に円滑に放出することができる。 According to the invention described in claim 2, in addition to the effect of the invention described in claim 1, the scraper (32) provided with the waste discharged from the discharge port (32) at the holding and conveying terminal portion of the feed chain (34) ( By separating from the feed chain (34) by 51), the waste can be smoothly discharged to the field scene.

請求項３記載の発明によると、上記請求項１または請求項２記載の発明の効果に加え、扱胴（２７）の後端部に設けた複数の板体（３７）によって、脱穀後の排稈に刺さり込んだ穀粒を叩き落して回収し、穀粒の回収効率を高めることができるうえに、排稈口（３２）からの排稈の排出を促進することができる。 According to the invention described in claim 3, in addition to the effect of the invention described in claim 1 or claim 2, the plurality of plates (37) provided at the rear end portion of the handling cylinder (27) can remove the threshing after threshing. The grain stuck in the cocoon can be beaten and collected to increase the collection efficiency of the grain, and the discharge of the waste from the spout (32) can be promoted.

請求項４記載の発明によると、請求項１または請求項２または請求項３記載の発明の効果を奏するうえに、扱胴（２７）の後部の左右両側に備えた排塵ファン（４９）によって、揺動選別棚（４１）上の塵埃を吸引して排出することができ、選別精度を高めることができる。 According to the invention of claim 4, in addition to the effects of the invention of claim 1 or claim 2 or claim 3, the dust exhaust fans (49) provided on the left and right sides of the rear part of the handling cylinder (27) The dust on the swing sorting shelf (41) can be sucked and discharged, and the sorting accuracy can be improved.

請求項５記載の発明によると、請求項４記載の発明の効果を奏するうえに、左側の排塵ファン（４９）をフィードチェン（３４）の挟持搬送終端部の下側に配置することで、脱穀装置の左右幅をコンパクトに構成することができる。 According to the invention described in claim 5, in addition to the effect of the invention described in claim 4, the left dust exhaust fan (49) is disposed below the clamping conveyance terminal portion of the feed chain (34). The left and right width of the threshing device can be configured compactly.

請求項６記載の発明によると、請求項１から請求項５のいずれか一項記載の発明の効果に加え、扱胴（２７）の後端部で発生する藁屑が、唐箕（４２）からの選別風によって後方へ吹き飛ばされ、揺動選別棚（４１）上へ落下しにくくなり、選別精度が向上する。 According to the invention described in claim 6, in addition to the effects of the invention described in any one of claims 1 to 5, the waste generated at the rear end of the handling cylinder (27) is from Karatsu (42). The air is blown backward by the sorting air, and it becomes difficult to fall onto the swing sorting shelf (41), and the sorting accuracy is improved.

請求項７記載の発明によると、請求項１から請求項６のいずれか一項記載の発明の効果に加え、排稈口（３２）の下側に設けた流下案内板（５４）によって、排稈口（３２）から排出された排稈を既刈地側へ流下案内して放出することができ、次回の刈取行程において、この排稈を刈取部に導入しにくくなり、コンバインによる刈取脱穀作業の能率を向上させることができる。 According to the invention described in claim 7, in addition to the effect of the invention described in any one of claims 1 to 6, the discharge guide plate (54) provided on the lower side of the discharge port (32) provides a discharge. The waste discharged from the mouth (32) can be discharged and guided to the already-cut ground, and it becomes difficult to introduce this waste into the cutting part in the next cutting process, and the harvesting and threshing work by the combine Can improve the efficiency.

請求項８記載の発明によると、上記請求項１から請求項６のいずれか一項記載の発明の効果に加え、排稈口（３２）から排出される排稈をドロッパ（５６）で受け止め、この排稈が所定量溜ってから圃場に放出することで、排藁の回収作業を容易化することができる。 According to the invention described in claim 8, in addition to the effect of the invention described in any one of claims 1 to 6, the waste discharged from the discharge port (32) is received by the dropper (56), By discharging the waste into the field after a predetermined amount of waste has been collected, the waste collection operation can be facilitated.

コンバインの側面図。The side view of a combine. 脱穀装置の説明用側面図。The side view for description of a threshing apparatus. 脱穀装置の説明用平面図。The top view for explanation of a threshing apparatus. 脱穀装置の説明用背面図。The rear view for description of a threshing apparatus. 脱穀装置の説明用背面図。The rear view for description of a threshing apparatus. 一部の拡大図。Some enlarged views. 一部の拡大図。Some enlarged views. 脱穀装置の説明用背面図。The rear view for description of a threshing apparatus. 脱穀装置の説明用側面図。The side view for description of a threshing apparatus. 脱穀装置の説明用平面図。The top view for explanation of a threshing apparatus. 脱穀装置の説明用背面図。The rear view for description of a threshing apparatus. 脱穀装置の説明用側面図。The side view for description of a threshing apparatus. 脱穀装置の説明用平面図。The top view for explanation of a threshing apparatus. 脱穀装置の説明用背面図。The rear view for description of a threshing apparatus.

この発明の実施の形態を、自脱型のコンバインを例示して説明する。
（機体構成）
図１に示すように、コンバインは、機体フレーム１の下方に走行装置２を設け、機体フレーム１の上部左側には脱穀装置３を搭載し、機体フレーム１の上部右側には穀粒貯留装置４を搭載し、機体フレーム１上における穀粒貯留装置４の前側にはエンジン５を搭載し、走行装置２の前方位置には刈取装置６を設けて構成する。
（走行装置）
図１に示すように、走行装置２は、機体フレーム１の下部から下方へ延出した支持脚（図示省略）の下端部に左右の転輪支持フレーム７を固定し、この転輪フレーム７に軸支された多数の転輪８と、ミッションケース（図示省略）から駆動される左右の駆動輪９にわたってクローラ１０を巻き掛けて構成する。
（刈取装置）
図１に示すように、刈取装置６は、機体フレーム１の前側上部に支持した支持フレーム１１の前端部に左右方向の下部伝動筒１２の左右方向中間部を連結し、この下部伝動筒１２から前方へ延出する分草フレーム１３の前端部に分草体１４を取り付け、この分草体１４の後側の部位にラグ式の引起装置１５を後上がり傾斜姿勢に設け、この引起装置１５の後側下部に刈刃装置１６を設け、この刈刃装置１６の上側に掻込搬送装置（図示省略）の始端部を配置し、この掻込搬送装置の終端部に供給搬送装置１７の始端部を臨ませ、この供給搬送装置１７の終端部を後述するフィードチェン３４の始端部に臨ませて構成する。
（穀粒貯留装置）
図１に示すように、穀粒貯留装置４は、箱型の容器として形成し、底部に排出螺旋（図示省略）を備える。そして、この穀粒貯留装置４には、上記の排出螺旋から穀粒を引き継いで排出する排出装置１８を備える。この排出装置１８は、揚穀螺旋を内装した揚穀筒１９の上端部に、排出螺旋を内装した排出筒２０の基部を連通して構成する。また、穀粒貯留装置４の上部には、脱穀装置３によって回収された穀粒を揚穀する一番揚穀筒２１の上端の吐き出し口を連通させる。
（脱穀装置）
図１に示すように、機体フレーム１の左側の前後長さを、右側の前後長さよりも短く形成している。即ち、機体フレーム１は、平面視で矩形に形成するが、脱穀装置３を搭載する部位の直後の部位を切り欠いた形状としている。これによって、脱穀装置３の直後には機体フレーム１が存在せず、脱穀装置３直後の機体フレーム１の後端面１Ｇの後側に、後述する排稈口３２から排出された排稈が落下する落下経路Ａが形成される。 The embodiment of the present invention will be described by exemplifying a self-removing combine.
(Airframe configuration)
As shown in FIG. 1, the combine is provided with a traveling device 2 below the body frame 1, a threshing device 3 is mounted on the upper left side of the body frame 1, and a grain storage device 4 is disposed on the upper right side of the body frame 1. The engine 5 is mounted on the front side of the grain storage device 4 on the machine body frame 1, and the cutting device 6 is provided at the front position of the traveling device 2.
(Running device)
As shown in FIG. 1, the traveling device 2 has left and right wheel support frames 7 fixed to lower end portions of support legs (not shown) extending downward from the lower part of the body frame 1. A crawler 10 is wound around a plurality of axially supported wheels 8 and left and right drive wheels 9 driven from a mission case (not shown).
(Reaping device)
As shown in FIG. 1, the reaping device 6 is connected to the front end portion of the support frame 11 supported on the front upper portion of the machine body frame 1 by connecting the left and right middle portion of the lower transmission tube 12 to the lower transmission tube 12. A weeding body 14 is attached to the front end portion of the weeding frame 13 extending forward, and a lug-type pulling device 15 is provided in a rearwardly inclined position at a rear portion of the weeding body 14. A cutting blade device 16 is provided at the lower portion, a start end portion of a scraping and conveying device (not shown) is disposed above the cutting blade device 16, and a starting end portion of the supply and conveying device 17 is exposed at a terminal portion of the scraping and conveying device. However, the supply transport device 17 is configured so that the terminal end faces the start end of a feed chain 34 to be described later.
(Grain storage device)
As shown in FIG. 1, the grain storage device 4 is formed as a box-shaped container, and includes a discharge spiral (not shown) at the bottom. And this grain storage apparatus 4 is equipped with the discharge device 18 which takes over and discharges a grain from said discharge spiral. This discharge device 18 is configured by communicating the base of a discharge cylinder 20 with a discharge helix in communication with the upper end portion of the cereal cylinder 19 with a cereal helix. Moreover, the upper part of the grain storage apparatus 4 is connected to the discharge port at the upper end of the first cereal cylinder 21 for cerealing the grains recovered by the threshing apparatus 3.
(Threshing device)
As shown in FIG. 1, the front-rear length of the left side of the body frame 1 is shorter than the front-rear length of the right side. That is, the body frame 1 is formed in a rectangular shape in plan view, but has a shape in which a part immediately after the part on which the threshing device 3 is mounted is cut out. As a result, the machine frame 1 does not exist immediately after the threshing device 3, and the waste discharged from the discharge port 32, which will be described later, falls on the rear side 1G of the rear frame 1G immediately after the threshing device 3. A fall path A is formed.

しかして、図２〜図４に示すように、上記脱穀装置３は、上部の扱室２２と下部の選別室２３とで構成される。
扱室２２は、前部に備えた前側壁２４と、後部に備えた後側壁２５との間に、周面に多数の線状の扱歯（ワイヤーツース）２６を植設した扱胴２７を扱胴軸２８で軸架し、この扱胴２７の下部外周に沿って扱網２９を張設し、扱胴２７の横外側を外側壁３０で覆って構成する。この外側壁３０には、前側壁２４に形成した供給口３１から、後側壁２５に形成した排稈口３２まで連続する前後方向の扱口３３を形成し、この扱口３３の外側部に沿わせてフィードチェン３４を設ける。
（フィードチェン）
このフィードチェン３４の上側に対向させて、スプリング３５で下向きに付勢された挟扼杆３６を設ける。この挟扼杆３６は、前後方向に複数に分割して、該分割された単体どうしを屈折可能に軸着連結したものであり、最後部のスプリング３５ａを他のスプリング３５よりも後下がりに緩傾斜させている。 Therefore, as shown in FIGS. 2 to 4, the threshing device 3 includes an upper handling chamber 22 and a lower sorting chamber 23.
The handling chamber 22 includes a handling cylinder 27 in which a large number of linear teeth (wire teeth) 26 are implanted on the peripheral surface between a front side wall 24 provided at the front part and a rear side wall 25 provided at the rear part. A handling shaft 28 is mounted on the handling cylinder 27, a handling net 29 is stretched along the outer periphery of the lower part of the handling cylinder 27, and the lateral outer side of the handling cylinder 27 is covered with an outer wall 30. The outer wall 30 is formed with a front / rear direction handling port 33 extending from the supply port 31 formed on the front side wall 24 to the discharge port 32 formed on the rear side wall 25, and is formed along the outer side of the handling port 33. Accordingly, a feed chain 34 is provided.
(Feed chain)
Opposite the upper side of the feed chain 34, a pinch 36 urged downward by a spring 35 is provided. The clamp 36 is divided into a plurality of pieces in the front-rear direction, and the divided pieces are pivotally connected so that they can be bent. The spring 35a at the rearmost part is loosened more downward than the other springs 35. It is tilted.

図１、図２に示すように、このフィードチェン３４は、その搬送始端部を扱室２２の前側壁２４よりも前方へ大きく延出させ、その搬送終端部は、扱室２２の後側壁２５よりも後方に偏倚した位置まで延出させる。尚、このフィードチェン３４の搬送終端部を、扱室２２の後側壁２５の近傍の位置に配置する構成としてもよい。
（スクレーパ）
そして、図１〜図６に示すように、フィードチェン３４の搬送終端部には、このフィードチェン３４によって搬送されてきた脱穀後の排稈の付き回りを防止するスクレーパ５１を設ける。図１に示すように、このスクレーパ５１は、フィードチェン３４の搬送終端部の左側に設けたスクレーパ５１Ｌと右側に設けたスクレーパ５１Ｒとからなり、これらのスクレーパ５１Ｌ，５１Ｒの上縁は、夫々、フィードチェン３４の搬送終端部の傾斜姿勢よりも後上がりに急傾斜している。 As shown in FIG. 1 and FIG. 2, the feed chain 34 has its transfer start end portion extended more forward than the front side wall 24 of the handling chamber 22, and its transfer end portion is the rear side wall 25 of the handling chamber 22. Extend to a position biased backwards. In addition, it is good also as a structure which arrange | positions the conveyance termination | terminus part of this feed chain 34 in the position near the rear side wall 25 of the handling chamber 22. FIG.
(Scraper)
As shown in FIGS. 1 to 6, a scraper 51 is provided at the conveyance end portion of the feed chain 34 to prevent the scouring after threshing that has been conveyed by the feed chain 34 from being caused. As shown in FIG. 1, the scraper 51 includes a scraper 51L provided on the left side of the conveyance terminal end of the feed chain 34 and a scraper 51R provided on the right side. The upper edges of these scrapers 51L and 51R are respectively The feed chain 34 is steeply inclined backward and higher than the inclined posture of the conveyance end portion.

また、左側のスクレーパ５１Ｌの後端部には、この左側のスクレーパ５１Ｌの上縁の傾斜姿勢よりも後上がりに急傾斜した案内棒５２を固定し、この案内棒５２によって排稈の株元側を掬い上げながら放出する構成としている。 Further, a guide bar 52 that is steeply inclined rearward from the inclined posture of the upper edge of the left scraper 51L is fixed to the rear end portion of the left scraper 51L. It is configured to release while scooping up.

尚、図７に示すように、左側のスクレーパ５１Ｌの上縁の高さを、右側のスクレーパ５１Ｒの上縁の高さより低く設定してもよい。
（扱歯）
また、扱胴２７の前部から後部にかけては、その外周面に上述の線状の扱歯２６を植設するが、その後端部の外周面には、扱胴軸２８の軸心方向と交差する向きの複数の板体３７を取り付ける。この板体３７は、扱胴２７の回転によって、扱室２２内の処理物を後方へ搬送する機能を有すると共に、脱穀後の排稈に刺さり込んだ穀粒を叩き落す機能を有する。
（扱網）
また、扱網２９は、線材を編んだ網状に形成するが、棒状の部材を組んだ格子状、あるいは目抜き鉄板としてもよい。 As shown in FIG. 7, the height of the upper edge of the left scraper 51L may be set lower than the height of the upper edge of the right scraper 51R.
(Tooth treatment)
In addition, the above-described linear handle teeth 26 are implanted on the outer peripheral surface from the front part to the rear part of the handle cylinder 27, but intersect the axial direction of the handle cylinder axis 28 on the outer peripheral surface of the rear end part. A plurality of plate bodies 37 in the direction to be attached are attached. The plate body 37 has a function of conveying the processed material in the handling chamber 22 backward by the rotation of the handling cylinder 27, and has a function of knocking down the grains stuck in the waste after threshing.
(Treatment network)
In addition, the handling net 29 is formed in a net shape knitted from a wire, but may be a lattice shape in which rod-shaped members are assembled or a hollow iron plate.

図４に示すように、この扱網２９は、扱室２２の後側壁２５に形成した排稈口３２の下縁から僅かに沈み込んだ位置に配置している。
（扱胴伝動）
図３に示すように、扱胴軸２８の前端部を前側壁２４に形成した孔を貫通させて前方へ突出させ、この扱胴軸２８の前端に、エンジン５から駆動力の供給を受ける伝動装置５ａを連動させる。尚、扱胴軸２８の前端は、前側壁２４側に支持した前側軸受３９に軸受し、扱胴軸２８の後端は、後側壁２５側に支持した後側軸受４０に軸受する。
（選別室）
図２に示すように、選別室２３は、揺動選別棚４１の下側に、唐箕４２と一番移送螺旋４３とニ番移送螺旋４４とを前側からこの順に配置して構成する。上記揺動選別棚４１には、移送棚４５とシーブ４６とストローラック４７とを前側からこの順に備える。
（排塵ファン）
また、図４に示すように、脱穀装置３の左側の機壁４８Ｌにおけるストローラック４７よりも高い位置に、排塵ファン４９の吸引口５０を開口させる。この排塵ファン４９の排風ダクト５５は、排塵ファン４９から左右方向に離間するほど低くなるように既刈地側に傾斜させる。 As shown in FIG. 4, the handling net 29 is disposed at a position slightly submerged from the lower edge of the discharge port 32 formed in the rear side wall 25 of the handling chamber 22.
(Cylinder transmission)
As shown in FIG. 3, the front end portion of the handling cylinder shaft 28 is caused to pass forward through a hole formed in the front side wall 24, and the front end of the handling cylinder shaft 28 receives a supply of driving force from the engine 5. The device 5a is interlocked. The front end of the cylinder barrel 28 is supported by a front bearing 39 supported on the front side wall 24 side, and the rear end of the cylinder barrel 28 is supported by a rear side bearing 40 supported on the rear side wall 25 side.
(Sorting room)
As shown in FIG. 2, the sorting chamber 23 is configured by arranging a red pepper 42, a first transfer spiral 43, and a second transfer spiral 44 in this order from the front side below the swing sorting shelf 41. The swing sorting shelf 41 includes a transfer shelf 45, a sheave 46, and a stroller 47 in this order from the front side.
(Dust exhaust fan)
Further, as shown in FIG. 4, the suction port 50 of the dust exhaust fan 49 is opened at a position higher than the stroller 47 in the left machine wall 48 </ b> L of the threshing device 3. The air exhaust duct 55 of the dust exhaust fan 49 is inclined to the already-cut ground side so as to become lower as it is separated from the dust exhaust fan 49 in the left-right direction.

尚、図５に示すように、この排塵ファン４９を脱穀装置３の右側の機壁４８Ｒにも設ける構成としてもよい。
（流下案内板）
そして、図２〜図４に示すように、前記排稈口３２の後側下方に、フィードチェン３４から左右方向に離間するほど低くなるように傾斜した流下案内板５４を設ける。 In addition, as shown in FIG. 5, it is good also as a structure which provides this dust exhaust fan 49 also in the machine wall 48R of the right side of the threshing apparatus 3. FIG.
(Flow guide plate)
As shown in FIGS. 2 to 4, a downflow guide plate 54 is provided at the rear lower side of the discharge port 32 so as to become lower as it is separated from the feed chain 34 in the left-right direction.

また、図８に示すように、前記排風ダクト５５に、流下案内板５４を連続させて設けてもよい。
尚、図３に示すように、前記一番移送螺旋４３の移送終端部を一番揚穀筒２１の基部に連通し、前記ニ番移送螺旋４４の移送終端部に連通したニ番揚穀筒５３の上端を脱穀装置３の右側の機壁４８Ｒを通じて移送棚４５の右側上方に開口させる。
（ドロッパ）
図９〜図１１に示すように、前記排稈口３２の後側下方に、この排稈口３２から排出される排稈を受けるドロッパ５６を設ける。 In addition, as shown in FIG. 8, a flow guide plate 54 may be provided continuously to the exhaust duct 55.
In addition, as shown in FIG. 3, the transfer terminal part of the said 1st transfer helix 43 is connected to the base part of the 1st whipping cylinder 21, and the 2nd transfer cylinder is connected to the transfer terminal part of the said 2nd transfer helix 44. The upper end of 53 is opened above the right side of the transfer shelf 45 through the right machine wall 48R of the threshing device 3.
(Dropper)
As shown in FIGS. 9 to 11, a dropper 56 for receiving the waste discharged from the discharge port 32 is provided below the discharge port 32 on the lower rear side.

即ち、扱室２２の後側壁２５の外側面の排稈口３２よりも下側の部位に、左右方向の回転軸５７を回転自在に軸支し、この回転軸５７から後方へ向けて支持杆５８を延設し、この支持杆５８が、無負荷状態において水平姿勢よりも後上がりの所定の傾斜姿勢に保持されるように、回転軸５７を回動付勢するスプリング５９を設ける。これにより、排稈口３２から排出されて支持杆５８上に溜った排稈の重量が所定の重量に達すると、スプリング５９の付勢力に抗して支持杆５８が下向きに回動し、溜っていた排稈が圃場面に落下する。
（扱胴軸から駆動されるファン）
図１２〜図１４に示すように、扱胴軸２８の後端部を後側軸受４０よりも後方へ突出させ、この突出端部にファン６０を取り付け、このファン６０をケーシング６１で囲う。このケーシング６１の下部には、既刈地側に向けて傾斜した送風口６２を設け、後側壁２５のケーシング６１で囲われた部位には、後側軸受４０を避けて吸引口６３を形成する。
（上記構成による効果）
フィードチェン３４の挟持搬送終端部を後側壁２５の近傍の部位あるいは後側壁２５よりも後方に偏倚した部位に配置し、扱室２２の排稈口３２を脱穀装置３の外部に向けて開口し、この排稈口３２から排出される脱穀後の排稈が、フィードチェン３４による挟持を解除されて排稈口３２から脱穀装置３の外部へ直接排出される構成としたので、脱穀装置３の全長をコンパクトに構成できてコンバインの機動性を向上させることができる。そして、扱胴２７の全長を長くでき、また、排藁搬送装置を省略してフィードチェン３４との引き継ぎ部での排稈の詰まりを少なくすることで、脱穀装置３の脱穀作業能率を高めることができる。そして、排藁搬送装置を省略することで、脱穀装置３およびこの脱穀装置３を搭載するコンバインの製造原価を低減して安価に提供することができる。 That is, a left and right rotation shaft 57 is rotatably supported at a portion below the discharge port 32 on the outer side surface of the rear side wall 25 of the handling chamber 22, and the support rod is supported rearward from the rotation shaft 57. 58 is provided, and a spring 59 that rotates and urges the rotary shaft 57 is provided so that the support rod 58 is held in a predetermined inclined posture that rises higher than the horizontal posture in an unloaded state. As a result, when the weight of the waste discharged from the discharge port 32 and accumulated on the support rod 58 reaches a predetermined weight, the support rod 58 rotates downward against the biasing force of the spring 59 and accumulates. The excrement that had been dropped falls into the field scene.
(Fan driven from the barrel)
As shown in FIGS. 12 to 14, the rear end portion of the handling cylinder shaft 28 is protruded rearward from the rear bearing 40, a fan 60 is attached to the protruding end portion, and the fan 60 is surrounded by a casing 61. The lower portion of the casing 61 is provided with an air blowing port 62 inclined toward the already-cut ground, and a suction port 63 is formed in a portion surrounded by the casing 61 of the rear side wall 25 while avoiding the rear bearing 40. .
(Effects of the above configuration)
The end of the nipping and conveying of the feed chain 34 is arranged in the vicinity of the rear side wall 25 or in the part deviated rearward from the rear side wall 25, and the discharge port 32 of the handling chamber 22 is opened toward the outside of the threshing device 3. The threshing after threshing discharged from the throat 32 is released from the feed chain 34 and directly discharged from the threshing port 3 to the outside of the threshing device 3. The overall length can be made compact and the mobility of the combine can be improved. And the full length of the handling cylinder 27 can be lengthened, and the threshing work efficiency of the threshing device 3 is increased by omitting the waste conveying device and reducing the clogging of the waste at the takeover portion with the feed chain 34. Can do. And by omitting the waste transporting device, the manufacturing cost of the threshing device 3 and the combine equipped with the threshing device 3 can be reduced and provided at low cost.

これに加え、扱室２２の下方に設けた揺動選別棚４１の後端部を排稈口３２の直下方の部位またはこの近傍の部位に配置することで、脱穀装置３の選別部の全長を短くして脱穀装置３及びこの脱穀装置３を搭載するコンバインの全長を更にコンパクト化することができる。 In addition to this, by arranging the rear end portion of the swing sorting shelf 41 provided below the handling chamber 22 at a portion immediately below the sluice port 32 or a portion in the vicinity thereof, the total length of the sorting portion of the threshing apparatus 3 The total length of the threshing device 3 and the combine equipped with the threshing device 3 can be further reduced.

これに加え、排稈口３２から排出される排稈を、フィードチェン３４の挟持搬送終端部に設けたスクレーパ５１によってフィードチェン３４から分離することで、排稈を圃場面に円滑に放出することができる。 In addition to this, the waste discharged from the discharge port 32 is separated from the feed chain 34 by the scraper 51 provided at the nipping and conveying terminal portion of the feed chain 34, so that the waste is smoothly discharged to the field scene. Can do.

これに加え、スクレーパ５１をフィードチェン３４の挟持搬送終端部の左右両側に設けると共に、この左右のスクレーパ５１Ｌ，５１Ｒのうちの扱口３３寄りに配置される一方のスクレーパ５１Ｒの高さを他方のスクレーパ５１Ｌの高さよりも低く設定することで、排稈が穂先側下がりの傾斜姿勢で排稈口３２から放出されやすくなり、排稈の姿勢の乱れが少なくなる。 In addition, the scraper 51 is provided on both the left and right sides of the nipping and conveying terminal portion of the feed chain 34, and the height of one scraper 51R disposed near the handling port 33 of the left and right scrapers 51L and 51R is set to the other. By setting the scraper 51L lower than the height of the scraper 51, the waste is easily released from the waste outlet 32 in an inclined posture with the tip side lowered, and the posture of the waste is less disturbed.

これに加え、扱胴２７の後端部に設けた複数の板体３７によって、脱穀後の排稈に刺さり込んだ穀粒を叩き落して回収することができ、穀粒の回収効率を高めることができる。
これに加え、揺動選別棚４１後部上方の左右一側または左右両側に開口した排塵ファン４９の吸引口５０から、揺動選別棚４１上の塵埃を吸引して排出することができ、選別精度を高めることができる。 In addition to this, the plurality of plates 37 provided at the rear end portion of the handling cylinder 27 can be used to knock down and collect the grains stuck in the waste after threshing, thereby improving the efficiency of collecting the grains. Can do.
In addition to this, the dust on the swing sorting shelf 41 can be sucked and discharged from the suction port 50 of the dust exhaust fan 49 opened on the left and right sides or both left and right above the rear portion of the swing sorting shelf 41. Accuracy can be increased.

これに加え、排稈口３２の後側下方に設けた流下案内板５４によって、排稈口３２から排出された排稈を既刈地側へ流下案内して放出することができ、次回の刈取行程において、この排稈を刈取部に導入しにくくなり、コンバインによる刈取脱穀作業の能率が向上する。 In addition, the flow guide plate 54 provided on the lower rear side of the discharge port 32 allows the discharge discharged from the discharge port 32 to flow down to the already-cut ground and be released. In the process, it becomes difficult to introduce this waste into the cutting part, and the efficiency of the cutting and threshing work by the combine is improved.

これに加え、排塵ファン４９の排風ダクト５５から吹き出す排塵風によって、流下案内板５４上に落下した排稈を既刈地側へ円滑に流下させることができる。
これに加え、排稈口３２から排出される排稈をドロッパ５６で受け、この排稈が所定量溜ってから圃場に放出するので、排藁の回収作業を容易に行えるようになる。 In addition to this, the waste that has fallen on the flow guide plate 54 can be smoothly caused to flow down to the already-cut ground by the dust exhaust that blows out from the exhaust duct 55 of the dust exhaust fan 49.
In addition, the waste discharged from the discharge port 32 is received by the dropper 56, and after a predetermined amount of the waste is accumulated, it is discharged to the field, so that the waste can be easily collected.

これに加え、扱胴軸２８の後端部から駆動されるファン６０から送風される風によって、流下案内板５４上に落下した排稈を既刈地側へ円滑に流下させることができる。
これに加え、ファン６０によって後側壁２５に形成した吸引口６３から扱室２２内の塵埃を吸引して排出することができ、選別精度を高めることができる。 In addition to this, the waste that has fallen on the flow guide plate 54 can be smoothly flowed down to the already-cut ground side by the air blown from the fan 60 driven from the rear end portion of the handling cylinder shaft 28.
In addition, the dust in the chamber 22 can be sucked and discharged from the suction port 63 formed in the rear side wall 25 by the fan 60, and the sorting accuracy can be improved.

これに加え、コンバインの機体フレーム１における脱穀装置３の直後の部位を切り欠いて形成した落下経路Ａから排稈を圃場面へ排出するで、機体フレーム１上に排稈が溜まりにくくなり、コンバインによる刈取脱穀作業を円滑に行なうことができる。 In addition, since the waste is discharged to the field scene from the fall path A formed by cutting out the part immediately after the threshing device 3 in the body frame 1 of the combine, it becomes difficult for the waste to accumulate on the body frame 1 and combine. The mowing and threshing work by can be performed smoothly.

３脱穀装置
２２扱室
２６扱歯
２７扱胴
３２排稈口
３３扱口
３４フィードチェン
３７板体
４１揺動選別棚
４２唐箕
４９排塵ファン
５１スクレーパ
５４流下案内板
５６ドロッパ DESCRIPTION OF SYMBOLS 3 Threshing apparatus 22 Handling chamber 26 Teeth 27 Handling cylinder 32 Exhaust port 33 Handling port 34 Feed chain 37 Plate body 41 Oscillation sorting shelf 42 Dust fan 49 Scraper 54 Flowing guide plate 56 Dropper

Claims

A handling cylinder (27) provided with a large number of teeth (26) is provided in the handling chamber (22), and a handle for inserting cereals into the handling chamber (22) on the outer side of the handling chamber (22) (33) is formed, and a feed chain (34) for sandwiching and conveying the cereal grains along the handling opening (33) is provided, and the rear end of the handling chamber (22) is sandwiched and conveyed by the feed chain (34). A threshing device in which a throat (32) for discharging sewage after threshing is formed continuously with the handling port (33), and the rear end of the handling cylinder (27) in a side view of the threshing device And the feed chain (34) are arranged close to each other, and the rear side of the feed chain (34) is not equipped with a transport device that takes over the mash after the threshing. The field after the threshing is discharged from the throat (32) while being held by the feed chain (34). Threshing device being characterized in that the discharged configurations.

A scraper (51) for separating the threshing waste after being transported by the feed chain (34) from the feed chain (34) is provided at a holding and conveying terminal end of the feed chain (34). The threshing apparatus according to claim 1.

A plurality of plates (37) for providing tooth handling (26) from the front part to the rear part of the treatment cylinder (27), and for discharging the waste after threshing to the rear end part of the treatment cylinder (27). The threshing apparatus according to claim 1, wherein the threshing apparatus is provided.

A swing sorting shelf (41) is provided below the handling chamber (22), and dust exhaust fans (49) for sucking out dust on the swing sorting shelf (41) are provided on both left and right sides of the rear portion of the handling cylinder (27). A threshing apparatus according to claim 1 or claim 2 or claim 3 provided.

The threshing device according to claim 4, wherein the left dust exhaust fan (49) provided on the side of the handling port (33) is arranged below the pinching and conveying terminal portion of the feed chain (34).

A configuration in which a tang (42) for blowing the sorting air is provided below the front portion of the swing sorting shelf (41), and the sorting air from the tang (42) is blown toward the rear end of the handling cylinder (27). The threshing apparatus according to any one of claims 1 to 5.

The flow guide plate (54) according to any one of claims 1 to 6, further comprising a flow guide plate (54) inclined downward from the uncut area toward the already cut area, below the drainage port (32). Threshing device.

The dropper (56) according to any one of claims 1 to 6, wherein a dropper (56) for receiving and supporting the waste discharged from the discharge port (32) is provided below the discharge port (32). Threshing equipment.