JP2013146272A - Thresher and whole culm charging type combine harvester equipped with thresher - Google Patents

Thresher and whole culm charging type combine harvester equipped with thresher Download PDF

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JP2013146272A
JP2013146272A JP2013069359A JP2013069359A JP2013146272A JP 2013146272 A JP2013146272 A JP 2013146272A JP 2013069359 A JP2013069359 A JP 2013069359A JP 2013069359 A JP2013069359 A JP 2013069359A JP 2013146272 A JP2013146272 A JP 2013146272A
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threshing
handling
sorting
handling cylinder
teeth
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JP5643868B2 (en
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Yoshitake Fukuoka
義剛 福岡
Yuichi Fumino
文野  裕一
Yuji Tanaka
祐二 田中
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Kubota Corp
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Kubota Corp
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Abstract

PROBLEM TO BE SOLVED: To provide a threshing structure of a whole culm charging type combine harvester capable of improving threshing performance and grain recovering efficiency.SOLUTION: There is provided a threshing structure of a whole culm charging type combine harvester comprising a threshing cylinder 16 driven and pivoting on a spindle 15 installed in a reaped grain culm conveying direction to thresh reaped grain culm supplied into a threshing chamber 14, a ceiling plate 24 covering the upper side of the threshing cylinder 16, and a plurality of dust conveying valves 49 for guiding the reaped grain culm to the downstream side of the threshing direction with the rotary drive of the threshing cylinder 16 disposed on the ceiling plate 24, wherein the threshing cylinder 16 comprises a body constituting member 47 for constituting the body and a plurality of threshing teeth 48 outward projected from the body constituting member 47.

Description

本発明は、刈取穀稈の搬送方向に沿って架設した支軸を支点にして回転駆動されることで、扱室に供給された刈取穀稈に対して脱穀処理を施す扱胴と、その扱胴の上部側を覆う天板とを備え、前記天板に、前記扱胴の回転駆動に伴って前記刈取穀稈を脱穀処理方向下手側に向けて案内する複数の送塵弁を装備した全稈投入型コンバインの脱穀構造に関する。   The present invention provides a handling cylinder for performing a threshing process on a harvested cereal meal supplied to a handling room by being rotationally driven about a support shaft constructed along the conveying direction of the harvested grain meal, and its handling A top plate that covers the upper side of the barrel, and the top plate is equipped with a plurality of dust feeding valves that guide the harvested cereal rice cake toward the lower side in the threshing processing direction as the handling barrel rotates. It relates to the threshing structure of a straw-type combine harvester.

上記のような全稈投入型コンバインの脱穀構造としては、扱室に、外周部に螺旋状の扱歯を有するように構成された扱胴を装備することが一般的である(例えば特許文献1参照)。   As a threshing structure for a full throw-in type combine as described above, it is common to equip the handling chamber with a handling cylinder configured to have helical handling teeth on the outer periphery (for example, Patent Document 1). reference).

特開平11−266666号公報JP-A-11-266666

つまり、全稈投入型のコンバインにおいては、自脱型コンバインのように脱穀装置にフィードチェーンなどの刈取穀稈搬送用の搬送装置が装備されていないことから、上記のような扱胴を装備することで、扱胴の回転に伴って、脱穀処理物が脱穀処理されながら脱穀処理方向下手側に向けてスクリュー搬送されるように構成しているのである。   In other words, in the all-throw-in type combine combiner, the threshing device is not equipped with a feed device such as a feed chain for the threshing device as in the self-removable combine combiner. Thus, with the rotation of the barrel, the threshing product is screwed toward the lower side in the threshing process direction while being threshed.

しかしながら、上記のように扱胴の外周部に螺旋状の扱歯を装備すると、脱穀処理物に対する扱歯の打壁や梳き込みなどによる脱穀作用が不十分になって、穀粒の単粒化を促進させることが難しくなることから、脱穀性能や穀粒回収効率の向上を図る上において改善の余地がある。   However, when a spiral tooth-handling is provided on the outer periphery of the barrel as described above, the threshing action of the tooth-handling wall and the squeezing of the processed threshing product becomes insufficient, and the grain is made into a single grain. Since it becomes difficult to promote the threshing, there is room for improvement in improving the threshing performance and the grain recovery efficiency.

本発明の目的は、脱穀性能や穀粒回収効率の向上を図ることができる全稈投入型コンバインの脱穀構造を提供することにある。   An object of the present invention is to provide a threshing structure for a whole straw throwing combine that can improve threshing performance and grain recovery efficiency.

上記の目的を達成するため、本発明のうちの請求項1に記載の発明では、刈取穀稈の搬送方向に沿って架設した支軸を支点にして回転駆動されることで、扱室に供給された刈取穀稈に対して脱穀処理を施す扱胴と、その扱胴の上部側を覆う天板とを備え、前記天板に、前記扱胴の回転駆動に伴って前記刈取穀稈を脱穀処理方向下手側に向けて案内する複数の送塵弁を装備した全稈投入型コンバインの脱穀構造において、前記扱胴を、その本体部分を構成する本体構成部材と、その本体構成部材から外方に向けて突出する複数の扱歯とから構成してあることを特徴とする。   In order to achieve the above-mentioned object, in the invention according to claim 1 of the present invention, it is supplied to the handling chamber by being rotationally driven with a support shaft erected along the conveying direction of the harvested cereal culm. And a top plate that covers the upper side of the handle cylinder, and the top plate is threshed with the rotational drive of the handle cylinder. In the threshing structure of a full-throw-in type combine combiner equipped with a plurality of dust feeding valves that guide the processing direction to the lower side in the processing direction, the handling cylinder is formed from a main body constituting member of the main body portion, and outward from the main body constituting member. It is characterized by comprising a plurality of tooth-treating teeth protruding toward the surface.

この特徴構成によると、扱室に供給された刈取穀稈は、扱胴の回転に伴って、複数の扱歯による多くの打撃や梳き込みによる脱穀作用を受けながら、扱室の上部に向けて搬送され、扱室の上部に到達するのに伴って、複数の送塵弁によって脱穀処理方向下手側に向けて案内されるようになる。   According to this characteristic configuration, the harvested cereal rice cake supplied to the handling room is directed toward the upper part of the handling room while being subjected to threshing action due to a lot of hammering and swallowing by a plurality of teeth as the handling cylinder rotates. As it reaches the upper part of the handling chamber, it is guided toward the lower side in the threshing process direction by a plurality of dust feeding valves.

つまり、扱胴に複数の扱歯を備えて、脱穀処理物に対する扱歯の打撃や梳き込みなどによる好適な脱穀作用を十分に得られるようにしながらも、脱穀処理物を脱穀処理方向下手側に向けて搬送することができる。   In other words, the handle barrel is provided with a plurality of teeth handling teeth, and the threshing processed product is placed on the lower side in the threshing processing direction while sufficiently obtaining a suitable threshing action by hitting or swaging the teeth on the threshing processed product. It can be transported towards.

そして、各扱歯を、例えば、扱胴の回転に伴って脱穀処理物を脱穀処理方向下手側に向けて案内する案内部などを有するように形成すれば、脱穀処理方向下手側に向けた脱穀処理物の搬送をより良好に行わせることが可能になり、又、脱穀処理物に対する打撃や梳き込みのみを行う脱穀専用の形状に形成すれば、脱穀処理物に対するより好適な脱穀作用を得られるようにすることが可能になる。   And if each tooth-handling is formed so as to have, for example, a guide part that guides the threshing processed product toward the lower side of the threshing processing direction along with the rotation of the barrel, threshing directed toward the lower side of the threshing processing direction It becomes possible to better convey the processed material, and if it is formed into a shape dedicated to threshing that only hits and plows the threshing processed material, a more suitable threshing action can be obtained for the threshing processed material. It becomes possible to do so.

従って、脱穀処理物の脱穀処理方向下手側への搬送を主に送塵弁に行わせることにより、脱穀処理方向下手側に向けた脱穀処理物の搬送性能を損なうことなく、脱穀性能や穀粒回収効率の向上を図ることのできる全稈投入型コンバインの脱穀構造を提供することができる。   Therefore, by letting the dust feeding valve mainly transport the threshing processed product to the lower side of the threshing processing direction, the threshing performance and the grain can be reduced without impairing the conveying performance of the threshing processed product toward the lower side of the threshing processing direction. It is possible to provide a threshing structure for a whole straw input combine that can improve the recovery efficiency.

全稈投入形コンバインの全体側面図Whole side view of all-throw-in type combine combiner 全稈投入形コンバインの全体平面図Overall plan view of all-injection combine 脱穀装置の縦断側面図Longitudinal side view of threshing device 脱穀装置の前端部の構成を示す一部縦断正面図Partially longitudinal front view showing the configuration of the front end of the threshing device 脱穀装置の前後中間部の構成を示す一部縦断正面図Partially longitudinal front view showing the configuration of the front and rear intermediate part of the threshing device 扱胴や搬送補助部材などの構成を示す要部の平面図Plan view of the main parts showing the configuration of the handling cylinder and conveyance auxiliary member 扱胴の構成を示す要部の横断平面図Cross-sectional plan view of the main part showing the configuration of the barrel 扱胴の構成を示す扱胴の縦断背面図Longitudinal rear view of the barrel showing the configuration of the barrel 扱胴の別構成を示す要部の横断平面図Cross-sectional plan view of the main part showing another configuration of the barrel 天板の構成を示す要部の縦断正面図Longitudinal front view of the main part showing the configuration of the top plate 送塵弁の長さや配置を示す要部の横断平面図Cross-sectional plan view of the main part showing the length and arrangement of the dust delivery valve 搬送補助部材の構成を示す要部の平面図The top view of the principal part which shows the structure of a conveyance auxiliary member 搬送補助部材の構成を示す要部の縦断側面図Longitudinal side view of the main part showing the configuration of the conveyance auxiliary member 受網の構成を示す要部の斜視図Perspective view of main part showing configuration of receiving network チャフシーブの構成を示す要部の斜視図Perspective view of main part showing configuration of chaff sheave

図1には、稲や麦などを収穫対象とする全稈投入形コンバインの全体側面が示されており、このコンバインは、角パイプ鋼材などで形成した車体フレーム1に、エンジン2や図外の変速装置などを搭載し、車体フレーム1の下部に、変速装置などを介して伝達されるエンジン2からの動力で駆動される左右一対のクローラ式走行装置3を装備し、車体フレーム1の前部に、収穫対象の植立穀稈を刈り取って後方に向けて搬送する刈取搬送装置4を昇降揺動可能に連結し、車体フレーム1の左半部に、刈取搬送装置4からの刈取穀稈に対して脱穀処理を施すとともに、その脱穀処理で得られた処理物に対して選別処理を施す脱穀装置5を搭載し、車体フレーム1の右半部に、脱穀装置5からの穀粒を貯留するとともに、その貯留した穀粒の袋詰めを可能にする袋詰装置6を搭載し、車体フレーム1における袋詰装置6の前方箇所に搭乗運転部7を形成して構成されている。   FIG. 1 shows an overall side view of an all-combination combine that harvests rice, wheat, and the like. This combine is attached to a body frame 1 made of square pipe steel, etc. A transmission and the like are mounted, and a pair of left and right crawler type traveling devices 3 driven by power from the engine 2 transmitted via the transmission and the like are mounted on the lower part of the vehicle body frame 1. In addition, a cutting and conveying device 4 that cuts and conveys the planted cereals to be harvested and is moved backward is connected to the left half of the body frame 1 to the harvested cereals from the cutting and conveying device 4. On the other hand, the threshing device 5 for performing the threshing process and selecting the processed product obtained by the threshing process is mounted, and the grains from the threshing device 5 are stored in the right half of the body frame 1. Along with the storage of the stored grains Equipped with a bagging device 6 which enables and is configured to form a driver's section 7 in front portions of the bagging apparatus 6 of the body frame 1.

左右のクローラ式走行装置3は、搭乗運転部7に備えた操縦レバー8の左右方向への揺動操作に基づいて、それらが等速駆動されることで直進状態を現出し、それらが差動することで旋回状態を現出するように構成されている。   The left and right crawler type traveling devices 3 are driven at a constant speed based on the swinging operation of the control lever 8 provided in the boarding operation unit 7 in the left-right direction, and thus the straight traveling state appears. It is comprised so that a turning state may appear by doing.

図1及び図2に示すように、刈取搬送装置4は、車体の走行に伴って、その前部左右両端に装備したデバイダ9が植立穀稈を収穫対象の植立穀稈と収穫対象外の植立穀稈とに梳き分け、その前部上方に配備した回転リール10が、左右のデバイダ9で梳き分けられた収穫対象の植立穀稈を後方に向けて掻き込み、その底部に装備したバリカン形の切断機構11が収穫対象の植立穀稈の株元側を切断し、切断機構11の後方に配備したオーガ12が、切断機構11による切断後の植立穀稈(刈取穀稈)を左右方向の所定箇所に寄せ集めるとともに、その所定箇所において後方に向けて送り出し、その所定箇所から脱穀装置5の前上部にわたる搬送コンベヤからなるフィーダ13が、オーガ12からの刈取穀稈を脱穀装置5に向けて搬送するように構成されている。又、操縦レバー8の前後方向への揺動操作に基づいて、車体フレーム1とフィーダ13とにわたって架設した油圧式の昇降シリンダ(図示せず)が伸縮作動することで、脱穀装置5とフィーダ13との連結点を支点にして昇降揺動し、その昇降揺動で、植立穀稈に対する切断機構11の高さ位置を変更する刈り高さ調節を行えるように構成されている。   As shown in FIG. 1 and FIG. 2, the cutting and conveying device 4 is configured such that the dividers 9 provided on the left and right ends of the front part of the vehicle body travel with the planted cereals to be harvested and the harvested cereals not to be harvested. Rotating reel 10 deployed above the front part of the planted cereal rice cake, scrapes the planted cereal rice harvested by the left and right dividers 9 toward the rear, and equips it at the bottom. The clipper-shaped cutting mechanism 11 cuts the planted side of the planted culm to be harvested, and the auger 12 deployed behind the cutting mechanism 11 is the planted cereal (cutted cereal culm after cutting by the cutting mechanism 11). ) Are gathered at a predetermined position in the left-right direction, and are fed backward at the predetermined position, and a feeder 13 composed of a transport conveyor extending from the predetermined position to the front upper part of the threshing device 5 threshs the harvested cereals from the auger 12 To be transported toward the device 5 It is configured. Further, the threshing device 5 and the feeder 13 are expanded and contracted by a hydraulic lifting cylinder (not shown) installed over the body frame 1 and the feeder 13 based on the swinging operation of the control lever 8 in the front-rear direction. The swaying movement of the cutting mechanism 11 with respect to the planted cereal can be adjusted by the up-and-down swinging with the connecting point as a fulcrum.

図3〜5に示すように、脱穀装置5は、その上部に形成した扱室14に、刈取穀稈の搬送方向に沿って架設した前後向きの支軸15を支点にして回転する扱胴16を配備し、その扱胴16の下方に、扱胴16の下部側を下方から覆う正面視U字状に形成された受網17を装備し、脱穀装置5の脱穀処理方向下手側端部となる受網17の後方に排稈口18を形成し、受網17の下方に揺動選別機構19を設け、その揺動選別機構19の前下方に唐箕20を配備し、揺動選別機構19の前部側下方に1番回収部21を形成し、揺動選別機構19の後部側下方に2番回収部22を形成し、揺動選別機構19の後方に排出口23を形成し、扱胴16の上部側を上方から覆う天板24を備えて構成されている。   As shown in FIGS. 3 to 5, the threshing device 5 is a handling cylinder 16 that rotates in a handling chamber 14 formed in the upper part thereof with a support shaft 15 that is laid in the conveying direction of the harvested cereal rice cake as a fulcrum. And a lower end of the threshing device 5 in the threshing processing direction, and a receiving net 17 formed in a U shape in front view covering the lower side of the handling cylinder 16 from below. A discharge port 18 is formed at the rear of the receiving net 17, a swing sorting mechanism 19 is provided below the receiving net 17, and a red pepper 20 is provided in front of and below the swing sorting mechanism 19. The first recovery portion 21 is formed below the front side of the front side, the second recovery portion 22 is formed below the rear side of the swing sorting mechanism 19, and the discharge port 23 is formed behind the swing sorting mechanism 19. A top plate 24 that covers the upper side of the trunk 16 from above is provided.

扱室14は、扱胴16を覆う受網17や天板24などによって区画形成され、その前端下方部位に供給口25が形成され、その供給口25にフィーダ13の後端部が接続され、そのフィーダ13で搬送された刈取穀稈の全体が脱穀処理物として供給口25から投入供給される。   The handling chamber 14 is partitioned and formed by a receiving net 17 that covers the handling cylinder 16, a top plate 24, and the like, a supply port 25 is formed at a lower part of the front end, and the rear end of the feeder 13 is connected to the supply port 25. The whole of the harvested cereal meal conveyed by the feeder 13 is input and supplied from the supply port 25 as a threshing processed product.

扱胴16は、その支軸15が脱穀装置5の前壁26と後壁27とにわたって回転可能に架設され、唐箕20などを介して伝達されるエンジン2からの動力で、支軸15を支点にして正面視右回りに回転駆動されることで、扱室14に供給された刈取穀稈に対して脱穀処理を施して、穀粒の単粒化を促しながら、その刈取穀稈を脱穀処理方向下手側となる後方に向けて搬送する。   The handling cylinder 16 has a support shaft 15 that is rotatably mounted on the front wall 26 and the rear wall 27 of the threshing device 5, and is supported by the support shaft 15 with power from the engine 2 transmitted through the carp 20 or the like. The threshing process is applied to the harvested cereals supplied to the handling room 14 by being rotated clockwise as viewed from the front, and the threshing process is performed on the harvested cereals while promoting the singulation of the grains. Transport toward the rear, which is the lower side of the direction.

受網17は、格子状に形成されたコンケーブ受網であり、扱室14に供給された刈取穀稈を受け止めて、刈取穀稈に対する扱胴16の脱穀処理を補助し、その脱穀処理で得られた単粒化穀粒や枝梗付き穀粒、あるいは、脱穀処理で発生した稈屑などを下方の揺動選別機構19に向けて漏下させる一方で、脱粒穀稈などの揺動選別機構19への漏下を防止する。   The receiving net 17 is a concave receiving net formed in a lattice shape, receives the harvested cereal meal supplied to the handling chamber 14, assists the threshing process of the handling cylinder 16 with respect to the harvested grain meal, and is obtained by the threshing process. Swaying sorting mechanism such as threshing cereal mash while letting the cerealized grains and cereals with branch branch or swarf generated by threshing process leak to the swaying sorting mechanism 19 below Prevent leakage to 19.

揺動選別機構19は、カム式の駆動機構28によって前後方向に揺動駆動されるシーブケース29の上部に、粗選別用のグレンパン30とチャフシーブ31とストローラック32とを、その順にシーブケース29の前側から配備し、シーブケース29の下部に、精選別用のグレンパン33とグレンシーブ34とを、その順にシーブケース29の前側から配備して構成されている。そして、単粒化穀粒や稈屑などが混在する状態で受網17から漏下した選別処理物を、上部のグレンパン30やチャフシーブ31あるいはストローラック32で受け止めて、篩い選別による粗選別処理を施し、かつ、単粒化穀粒や枝梗付き穀粒などが混在する状態でチャフシーブ31から漏下した選別処理物を、下部のグレンパン33やグレンシーブ34で受け止めて、篩い選別による精選別処理を施して、選別処理物を、1番物としての単粒化穀粒と、2番物としての枝梗付き穀粒や稈屑などの混在物と、3番物としての稈屑などの塵埃とに選別する。   The swing sorting mechanism 19 has a rough sorting grain pan 30, chaff sheave 31, and stroller 32 in that order on the sheave case 29 that is driven to swing back and forth by a cam-type drive mechanism 28. In the lower part of the sheave case 29, a fine sorting grain pan 33 and a grain sheave 34 are arranged in that order from the front side of the sheave case 29. And the sorting processed material leaked from the receiving net 17 in a state where single grains and swarf are mixed is received by the upper grain pan 30, chaff sheave 31 or Strollac 32, and rough sorting processing by sieve sorting is performed. The processed material leaked from the chaff sheave 31 in a state where a single grain or a grain with branch stems is mixed is received by the lower grain pan 33 or the grain sieve 34 and subjected to a fine sorting process by sieving. Applying and sorting the processed products, single grains as No. 1, mixed grains such as grain with branch branch and No. 2 as No. 2, and dust such as Soup as No. 3 To sort.

唐箕20は、ベルト式の伝動機構35を介して伝達されるエンジン2からの動力で、その支軸20Aを支点にして回転駆動されることで選別風を生起し、その選別風が、3つの風路R1〜R3を通って、受網17から漏下した選別処理物や、揺動選別機構19で選別される選別処理物などに向けて供給されることで、選別処理物に対して風力選別処理を施して、選別処理物から比重の小さい稈屑などを吹き分けて、脱穀処理方向下手側の排出口23に向けて搬送する。   The carp 20 is driven by the power from the engine 2 transmitted through the belt-type transmission mechanism 35, and is driven to rotate about the support shaft 20A, thereby generating a sorting wind. By being supplied toward the sorting processed product leaked from the receiving network 17 or the sorting processed product sorted by the swing sorting mechanism 19 through the air passages R1 to R3, A sorting process is performed to blow off swarf or the like having a small specific gravity from the sorted product, and convey it toward the outlet 23 on the lower side in the threshing process direction.

1番回収部21は、唐箕20からの選別風でワラ屑などの塵埃が除去された状態で、揺動選別機構19のグレンシーブ34から漏下した単粒化穀粒を、1番物として回収し、回収した1番物を、その底部に左右向きに配備した1番スクリュー36で、その右端に連通接続した揚送スクリュー37(図2参照)に向けて搬送する。   The first recovery unit 21 recovers the single-grained grains that have leaked from the grain sieve 34 of the swing sorting mechanism 19 in the state where dust such as straw scraps has been removed by the sorting wind from the Karatsu 20. Then, the recovered first item is conveyed toward the lifting screw 37 (see FIG. 2) that is connected to the right end of the first screw 36 that is disposed in the left-right direction at the bottom.

2番回収部22は、揺動選別機構19のグレンシーブ34から漏下せずにグレンシーブ34の後端から流下した枝梗付き穀粒や稈屑などの混在物、及び、揺動選別機構19のストローラック32から漏下した枝梗付き穀粒や稈屑などの混在物を2番物として回収し、回収した2番物を、その底部に左右向きに配備した2番スクリュー38で、その右端に連通接続した2番還元機構39(図2参照)に向けて搬送する。   The second recovery unit 22 includes a mixture of grains such as branches and cereals that flow down from the rear end of the grain sieve 34 without leaking from the grain sieve 34 of the rocking sorting mechanism 19, and the rocking sorting mechanism 19. A mixture such as cereal grains and sawdust leaking from the Strollac 32 is collected as No. 2 and the No. 2 screw 38 arranged at the bottom side of the collected No. 2 is arranged at the right end. To the second reduction mechanism 39 (see FIG. 2) that is connected in communication.

揚送スクリュー37は、1番スクリュー36で搬送された1番物を揚送して、袋詰装置6の上部に備えた穀粒タンク40に供給する(図1及び図2参照)。2番還元機構39は、2番スクリュー38で搬送された2番物に対して再び脱穀処理を施す再処理部(図示せず)を備え、その再処理部による脱穀処理後の2番物を揚送して揺動選別機構19に還元する(図2参照)。   The lifting screw 37 lifts the first item conveyed by the first screw 36 and supplies it to the grain tank 40 provided at the upper part of the bagging device 6 (see FIGS. 1 and 2). The second reduction mechanism 39 includes a reprocessing unit (not shown) that performs a threshing process again on the second item conveyed by the second screw 38, and the second item after the threshing process by the reprocessing unit. It is transported and returned to the swing sorting mechanism 19 (see FIG. 2).

排出口23は、受網17から漏下せずに排稈口18から流下する脱粒穀稈や、篩い選別処理や風力選別処理で揺動選別機構19の後方に選別搬送された稈屑などを車外に放出する。   The discharge port 23 is used for removing cereal cereals that do not leak from the receiving net 17 and flow down from the discharge port 18, and swarf sorted and conveyed to the rear of the oscillating and sorting mechanism 19 by a sieving sorting process or a wind sorting process. Release outside the vehicle.

図3〜8に示すように、扱胴16は、その前端部に装備した円錐台状の掻込部41と、その掻込部41の後端に連接した扱き処理部42とを備えて構成されている。掻込部41の外周面には、扱胴16の回転作動時に、供給口25から供給された刈取穀稈を後方の扱き処理部42に向けて掻き込み搬送する2枚の螺旋歯43が一体装備されている。   As shown in FIGS. 3 to 8, the handling cylinder 16 includes a frustoconical scoring portion 41 provided at the front end portion thereof, and a handling processing portion 42 connected to the rear end of the scavenging portion 41. Has been. On the outer peripheral surface of the scraping unit 41, two spiral teeth 43 that scrape and convey the harvested cereal meal supplied from the supply port 25 toward the rear handling processing unit 42 when the handling cylinder 16 is rotated are integrated. Equipped.

扱き処理部42は、支軸15の前部に一体装備した第1支持プレート44、支軸15の前後中間部に一体装備した第2支持プレート45、支軸15の後端部に一体装備した第3支持プレート46、それらの支持プレート44〜46によって、支軸15に沿う前後向きの姿勢で、扱胴16の周方向に一定間隔を隔てて並ぶように支持された丸パイプ鋼材などからなる6本の扱胴フレーム(本体構成部材の一例)47、及び、各扱胴フレーム47に、扱胴フレーム47から扱胴16の外方に向けて突出する姿勢で、前後方向に所定間隔を隔てて並ぶように装備した複数の扱歯48、などによって籠状に構成されている。   The handling unit 42 is integrally provided at a first support plate 44 integrally provided at the front portion of the support shaft 15, a second support plate 45 provided integrally at the front and rear intermediate portions of the support shaft 15, and a rear end portion of the support shaft 15. The third support plate 46 and a round pipe steel material supported by the support plates 44 to 46 so as to be arranged in the circumferential direction of the handling cylinder 16 at a predetermined interval in a front-rear orientation along the support shaft 15. Six handling cylinder frames (an example of a main body constituting member) 47, and each handling cylinder frame 47 projecting outward from the handling cylinder frame 47 toward the outside of the handling cylinder 16, with a predetermined interval in the front-rear direction. A plurality of teeth 48 arranged so as to be lined up in a bowl shape.

つまり、扱胴16は、その外方に向けて突出する複数の扱歯48が、扱き処理部42の周方向と前後方向とに所定間隔を隔てて並ぶように整列配備され、又、扱き処理部42の内部空間Sが扱室14に連通して、その内部空間Sへの脱穀処理物の入り込みを許容するようになっており、その結果、その回転作動時には、その周囲の脱穀処理物と内部空間Sに入り込んだ脱穀処理物とを攪拌しながら、それらの脱穀処理物に対して、扱胴フレーム47や扱歯48の打撃や梳き込みなどによる脱穀処理を施すことになる。   That is, the handling cylinder 16 is arranged and arranged so that a plurality of handling teeth 48 projecting outward from the handling cylinder 16 are arranged at a predetermined interval in the circumferential direction and the front-rear direction of the handling processing unit 42. The internal space S of the part 42 communicates with the handling chamber 14 so as to allow entry of the threshing product into the internal space S. As a result, during the rotation operation, the surrounding threshing product and While stirring the threshing processed material that has entered the internal space S, the threshing processing is performed on the threshing processed product by striking or punching the handling barrel frame 47 and the tooth handling 48.

又、扱き処理部42の内部空間Sが扱室14に連通することで、大量の刈取穀稈が脱穀処理物として扱室14に供給された場合であっても、扱き処理部42の内部空間Sを脱穀処理用の処理空間として有効利用することができ、これによって、処理空間での脱穀処理物の滞留や処理空間の飽和を回避することができる。その結果、脱穀処理物の滞留や処理空間の飽和に起因した、十分な脱穀処理が行われないまま脱穀処理物がコンケーブ3から漏下する、あるいは、脱穀処理に要する負荷が増大して扱胴16に対する伝動系が損傷する、などの不都合の発生を未然に回避することができる。   Further, the internal space S of the handling processing unit 42 communicates with the handling chamber 14, so that even when a large amount of harvested cereal meal is supplied to the handling chamber 14 as a threshing processed product, the internal space of the handling processing unit 42. S can be effectively used as a processing space for threshing treatment, and thereby, retention of threshing products in the processing space and saturation of the processing space can be avoided. As a result, the threshing product leaks from the concave 3 without sufficient threshing processing due to the retention of the threshing product or the saturation of the processing space, or the load required for the threshing processing increases and the handling cylinder increases. It is possible to avoid inconveniences such as damage to the transmission system for 16.

そして、扱胴16の回転作動時には、複数の扱歯48だけでなく、扱胴16の扱き処理部42を形成する6本の扱胴フレーム47までもが、脱穀処理物に作用する扱き処理部材として機能することから、脱穀性能や脱穀効率の向上を図ることができる。   When the handling cylinder 16 is rotated, not only the plurality of tooth handling teeth 48 but also the six handling cylinder frames 47 forming the handling processing section 42 of the handling cylinder 16 are handled handling members that act on the threshing product. Therefore, it is possible to improve threshing performance and threshing efficiency.

しかも、扱胴16の前部側での脱穀処理によって、多くの穀粒が単粒化して受網17から漏下することで、脱穀処理物量が減少する扱胴16の前後中間部においては、第2支持プレート45が、扱胴16の内部空間Sでの脱穀処理物の脱穀処理方向下手側への流動を阻止し、扱胴16の回転とともに脱穀処理物を扱胴16の周囲に導いて、脱穀処理物に対する扱歯48などの打撃や梳き込みなどによる脱穀や、単粒化穀粒の受網17からの漏下を促すようになることから、脱穀処理物に含まれる単粒化穀粒や未脱粒穀稈などが扱胴16の内部空間Sを素通りして、脱粒穀稈とともに脱穀処理方向下手側端部の排稈口18から排出されることに起因した3番ロスの発生を阻止することができる。   Moreover, by the threshing process on the front side of the handling cylinder 16, many grains become a single grain and leak from the receiving net 17, so that the amount of the threshing processed product decreases in the front and rear intermediate parts, The second support plate 45 prevents the threshing product in the inner space S of the handling cylinder 16 from flowing to the lower side in the threshing processing direction, and guides the threshing treatment product around the handling cylinder 16 as the handling cylinder 16 rotates. , Threshing of the threshing product by hitting or swallowing the tooth-handling 48, etc., or leakage of the single cereal grain from the receiving net 17 is promoted, so that the single cereal grain contained in the threshing product The occurrence of No. 3 loss caused by grains and unthreshed cereals passing through the inner space S of the barrel 16 and being discharged together with the shed cereals from the discharge port 18 at the lower end of the threshing processing direction. Can be blocked.

更に、扱胴16の回転作動時には、掻込部41の作用で掻き込み搬送される刈取穀稈とともに、螺旋歯43の回転に伴って供給口25から吸引された外気が、扱胴16の周囲や扱き処理部42の内部空間Sにスムーズに流動するようになり、これによって、脱穀処理によって発生した稈屑などの供給口25からフィーダ13への流出を防止することができるとともに、脱穀処理物の脱穀処理方向下手側への搬送をより速やかに行える。   Further, when the handling cylinder 16 is rotated, the outside air sucked from the supply port 25 along with the rotation of the helical teeth 43 together with the harvested cereal that is scraped and transported by the action of the scraping portion 41 is surrounded by the circumference of the handling cylinder 16. And flow smoothly into the internal space S of the handling unit 42, thereby preventing the swarf generated from the threshing process from flowing out from the supply port 25 to the feeder 13 and the threshing processed product. The threshing process in the lower direction can be carried more quickly.

その上、供給口25から吸引される外気は、供給口25に接続されたフィーダ13の内部を通るものであり、そのフィーダ13は、切断機構11やオーガ12などを装備した刈取搬送装置4の刈取回収部に形成した回収穀稈搬出用の搬出口(図示せず)と供給口25とを連通するものであることから、扱胴16の回転作動時には、螺旋歯43の回転による吸引作用で、刈取回収部での刈取処理や回収処理で発生した稈屑などの塵埃も、外気とともに、刈取回収部の搬出口からフィーダ13の内部空間及び供給口25を介して、扱胴16の周囲や扱き処理部42の内部空間Sに流入することになる。その結果、刈取回収部での稈屑などの付着堆積や舞い上がりを抑制することができ、その付着堆積に起因した刈取穀稈の搬送不良や、その舞い上がりに起因した作業環境及び視界性の低下などを抑制することができる。   In addition, the outside air sucked from the supply port 25 passes through the inside of the feeder 13 connected to the supply port 25, and the feeder 13 includes the cutting mechanism 11 and the auger 12. Since the supply port 25 communicates with a carry-out port (not shown) for carrying out the recovered cereals formed in the cutting and collecting part, the suction action by the rotation of the helical teeth 43 is caused when the handling cylinder 16 is rotated. In addition, dust such as sawdust generated in the cutting and collecting process in the cutting and collecting unit, along with the outside air, from the carry-out port of the cutting and collecting unit through the internal space of the feeder 13 and the supply port 25, It will flow into the internal space S of the handling processor 42. As a result, it is possible to suppress the accumulation and soaring of sawdust etc. in the harvesting and collecting part, the poor transportation of the harvested cereals due to the deposition and the deterioration of the working environment and visibility due to the soaring, etc. Can be suppressed.

各支持プレート44〜46は、支軸15を中心とする円形で、その外周側における支軸15からの等距離の位置に扱胴フレーム47がボルト連結されている。   Each of the support plates 44 to 46 has a circular shape centered on the support shaft 15, and a barrel frame 47 is bolted to the outer peripheral side of the support plate 44 at an equal distance from the support shaft 15.

つまり、各支持プレート44〜46の外周側に、その周方向に一定間隔を隔てて並ぶ状態に6本の扱胴フレーム47を配備して、扱胴16の胴径を大きくするようにしているのであり、これによって、扱胴16に対する刈取穀稈の巻き付きを防止することができる。   That is, on the outer peripheral side of each support plate 44 to 46, six handling cylinder frames 47 are arranged in a state of being arranged at regular intervals in the circumferential direction so that the cylinder diameter of the handling cylinder 16 is increased. Thus, it is possible to prevent the harvested cereal from being wrapped around the handling cylinder 16.

各扱胴フレーム47は、その前後方向を扱胴16の前後方向と一致させた通常姿勢と、その前後方向を扱胴16の前後方向と逆にした反転姿勢とに向き変更可能に、かつ、隣り合う扱胴フレーム47との前後向きが逆になるように、各支持プレート44〜46にボルト連結されている。   Each barrel frame 47 can be reoriented to a normal posture in which the front-rear direction coincides with the front-rear direction of the barrel 16 and an inverted posture in which the front-rear direction is opposite to the front-rear direction of the handle barrel 16, and Bolts are connected to the support plates 44 to 46 so that the front and rear directions with respect to the adjacent handling cylinder frames 47 are reversed.

各扱胴フレーム47には、扱歯48の取り付けを可能にする複数の取付孔47A,47Bが、その前後方向に一定ピッチPで並ぶ状態に、かつ、扱胴フレーム47の前端から最前の取付孔47Aの中心までの距離L1と、扱胴フレーム47の後端から最後の取付孔47Aの中心までの距離L2とを半ピッチ(=1/2P)だけ異ならせた状態で穿設されている。   Each handling frame 47 has a plurality of mounting holes 47A and 47B that allow the handling teeth 48 to be mounted in a state where the mounting holes 47A and 47B are arranged at a constant pitch P in the front-rear direction, and from the front end of the handling frame 47 The distance L1 to the center of the hole 47A and the distance L2 from the rear end of the handling frame 47 to the center of the last mounting hole 47A are made different from each other by a half pitch (= 1 / 2P). .

そして、各扱胴フレーム47は、隣り合うものとの前後向きが逆になる状態で各支持プレート44〜46に連結支持されており、これによって、6本の扱胴フレーム47として同じ構成のものを採用しながら、それらの各扱胴フレーム47に装備される扱歯48を、隣り合う扱胴フレーム47の扱歯48と前後方向に半ピッチ分だけ位置ずれさせた状態で位置させることができ、結果、隣り合う扱歯48の間隔を小さくすることなく、脱穀処理物に対する扱歯48の打撃間隔を小さくすることができる。   Each handling cylinder frame 47 is connected to and supported by each of the support plates 44 to 46 in a state where the front and rear directions with respect to adjacent ones are reversed, and thereby, the six handling cylinder frames 47 have the same configuration. Can be positioned in a state of being shifted by a half pitch in the front-rear direction from the teeth 48 of the adjacent cylinder frames 47. As a result, the striking interval of the teeth 48 against the threshing processed product can be reduced without reducing the interval between the adjacent teeth 48.

つまり、各扱胴フレーム47を同じ構成とすることによるコストの削減を図りながら、又、隣り合う扱歯48の間隔を小さくするほど招き易くなる、扱歯48に対する脱穀処理物中の穀稈の絡み付きに起因した脱穀処理物の詰まりを効果的に防止しながら、脱穀処理物に対する扱歯48の打撃回数を多くすることによる脱穀性能の向上を図ることができる。   That is, while reducing the cost by making each handling cylinder frame 47 the same structure, the smaller the gap between adjacent handling teeth 48, the easier it is to invite the cereals in the threshing processed product with respect to the handling teeth 48. While effectively preventing clogging of the threshing product resulting from the entanglement, it is possible to improve the threshing performance by increasing the number of times the tooth handling 48 is struck against the threshing product.

又、各扱胴フレーム47を、通常姿勢と反転姿勢とに向き変更可能に装備したことで、脱穀処理物量が多いことで比較的に摩耗し易い脱穀処理方向上手側に位置する扱歯48の摩耗が長期の使用によって著しくなった場合には、各扱胴フレーム47の向きを変更することで、各扱胴フレーム47に備えた複数の扱歯48を、比較的に摩耗し易い脱穀処理方向上手側の扱歯48と摩耗し難い脱穀処理方向下手側の扱歯48とを交換した状態に、一挙に位置変更することができ、これによって、摩耗の少ない脱穀処理方向下手側の扱歯48を、脱穀処理物量の多い脱穀処理方向上手側の扱歯48として有効利用することができる。   Further, since each handling cylinder frame 47 is equipped so that the orientation can be changed between the normal posture and the inverted posture, the handling teeth 48 positioned on the upper side in the threshing processing direction, which is relatively easy to wear due to a large amount of the threshing processed material. When wear becomes significant due to long-term use, the direction of each barrel frame 47 is changed, so that the plurality of teeth 48 provided on each barrel frame 47 are relatively easily worn away. The position of the upper teeth 48 and the lower teeth in the threshing direction that are difficult to wear can be changed to a state where they are exchanged at a stroke, whereby the teeth 48 on the lower side in the threshing direction with less wear. Can be effectively used as the tooth handling 48 on the upper side in the threshing process direction with a large amount of processed threshing.

複数の取付孔47A,47Bのうち、各扱胴フレーム47の前後両端部に位置する4つ(前後2つずつ)の取付孔47Aは、中間部に位置する取付孔47Bよりも小径に形成されている。   Of the plurality of mounting holes 47A and 47B, four (two front and rear) mounting holes 47A located at both front and rear ends of each handling cylinder frame 47 are formed to have a smaller diameter than the mounting holes 47B located at the intermediate portion. ing.

各扱歯48のうち、小径の取付孔47Aを利用して取り付けられる扱歯48Aは、取付孔47Aに挿通される小径部48aを備えた段付きの丸棒鋼材で構成され、その中心が、支軸15の中心と扱胴フレーム47の中心とを通る線上に位置するように、扱胴フレーム47に着脱可能にナット止めされている。   Of each tooth 48, a tooth 48A that is attached using a small-diameter attachment hole 47A is composed of a stepped round bar steel material having a small-diameter portion 48a that is inserted through the attachment hole 47A. A nut is detachably attached to the barrel frame 47 so as to be positioned on a line passing through the center of the support shaft 15 and the center of the barrel frame 47.

中間部の取付孔47Bを利用して取り付けられる扱歯48Bは、段無しの丸棒鋼材で構成され、その中心が、支軸15の中心と扱胴フレーム47の中心とを通る線上に位置するように、扱胴フレーム47に着脱不能に溶接されている。   The tooth 48B attached using the intermediate attachment hole 47B is made of a stepless round bar steel material, and the center thereof is located on a line passing through the center of the support shaft 15 and the center of the handling cylinder frame 47. As shown in FIG.

つまり、扱き処理部42の前後両端部に位置する各扱歯48Aが着脱可能であることから、それらの扱歯48Aが、扱胴フレーム47の向き変更を含めた長期にわたる使用で著しく摩耗した場合には、新しい扱歯48Aに簡単に交換することができる。   That is, since each tooth 48A located at both front and rear ends of the handling section 42 is detachable, the teeth 48A are significantly worn by long-term use including changing the direction of the handling frame 47. Can be easily replaced with a new tooth-handling 48A.

又、脱粒穀稈量が多くなる脱穀処理方向下手側においては、図9に示すように、扱胴16の後端部に位置する扱歯48Aを間引いた状態で配備すれば、扱胴後端部での扱歯48Aの間隔が大きくなって、扱胴後端部での扱歯48Aに対する引っ掛かりに起因した脱粒穀稈の滞留を効果的に抑制することができ、結果、脱粒穀稈の排出口23からの放出を促進させることができる。   Further, on the lower side of the threshing treatment direction in which the amount of threshing cereal increases, as shown in FIG. 9, if deployed in a state in which the teeth 48 </ b> A located at the rear end of the handling cylinder 16 are thinned, the handling cylinder rear end The interval between the tooth-handling 48A at the portion increases, and the retention of the threshing cereal caused by the catch on the tooth-handling 48A at the rear end of the barrel can be effectively suppressed. Release from the outlet 23 can be facilitated.

図3〜5、図10及び図11に示すように、天板24は、扱歯先端の回転軌跡Kに略沿って湾曲する湾曲部24A、その湾曲部24Aの前後両端に位置する半円状の縦壁部24B、及び、湾曲部24Aの左右に位置する一直線状の側縁部24C、などを備え、扱胴16の上部側を上方から覆う閉状態と、扱胴16の上部側を開放する開状態とに、左側の側縁部24Cに備えた複数のヒンジ24Dを支点にした開閉揺動操作が可能となるように構成されている。右側の側縁部24Cには、天板24を閉状態で固定する複数のボルト24Eが備えられている。   As shown in FIGS. 3 to 5, 10, and 11, the top plate 24 includes a curved portion 24 </ b> A that curves substantially along the rotation locus K of the tooth handling tip, and a semicircular shape that is located at both front and rear ends of the curved portion 24 </ b> A. The vertical wall portion 24B and the straight side edge portions 24C located on the left and right of the curved portion 24A, etc., are closed, and the upper side of the handling cylinder 16 is opened from above. In the open state, the opening / closing swinging operation using a plurality of hinges 24D provided on the left side edge 24C as fulcrums is possible. The right side edge 24C is provided with a plurality of bolts 24E for fixing the top plate 24 in a closed state.

湾曲部24Aの内面には、扱胴16の回転作動に伴って、扱室14の上部に搬送された脱穀処理物を脱穀処理方向下手側に向けて案内する複数の送塵弁49が、前後方向に所定間隔を隔てて並ぶように固定装備されている。複数の送塵弁49のうち、最前の送塵弁49Aは、前側の縦壁部24Bから左側の側縁部24Cにわたる円弧状に形成され、他の送塵弁49Bは、左右の側縁部24Cにわたる円弧状に形成されている。   On the inner surface of the curved portion 24A, there are a plurality of dust feed valves 49 that guide the threshing processed material conveyed to the upper part of the handling chamber 14 toward the lower side in the threshing processing direction in accordance with the rotation operation of the handling cylinder 16. It is fixedly equipped so as to line up in the direction at a predetermined interval. Among the plurality of dust delivery valves 49, the foremost dust delivery valve 49A is formed in an arc shape extending from the front vertical wall portion 24B to the left side edge portion 24C, and the other dust delivery valves 49B are left and right side edge portions. It is formed in an arc shape extending over 24C.

つまり、天板24に湾曲部24Aを備えたことで、扱胴16の回転に伴って複数の扱歯48などで扱室14の上部に掻き上げ搬送された脱穀処理物を、天板24に激しく衝突させることなく、天板24や送塵弁49に沿わせながら、脱穀処理方向下手側下方の受網17に向けて滑らかに案内することができ、又、各送塵弁49を、左側の側縁部24C又は左右の側縁部24Cにわたる長尺の円弧状に形成したことで、扱胴16の回転に伴って扱室14の上部に搬送された脱穀処理物に対する各送塵弁49Aの案内作用を効果的に向上させることができ、これによって、各扱歯48を、脱穀処理物に対する搬送作用を備える形状ではなく、脱穀処理物に対する打撃や梳き込みを好適に行える脱穀専用の形状に形成しながらも、脱穀処理物を脱穀処理方向下手側に向けて良好に搬送案内することができ、結果、脱穀処理物に対する脱穀性能及び搬送性能の向上を図ることができる。   That is, by providing the top plate 24 with the curved portion 24 </ b> A, the threshing processed material that has been scraped and conveyed to the upper portion of the handling chamber 14 by the plurality of tooth handling 48 and the like as the handling cylinder 16 rotates is applied to the top plate 24. Without violently colliding, it can be smoothly guided toward the receiving net 17 on the lower side of the threshing process direction along the top plate 24 and the dust feed valve 49, and each dust feed valve 49 can be moved to the left side. 49A of each threshing processed material conveyed to the upper part of the handling chamber 14 with rotation of the handling cylinder 16 by having formed in the long circular arc shape over the side edge part 24C or the left and right side edge parts 24C. The guiding action of the threshing can be effectively improved, so that each tooth-handling 48 is not a shape having a conveying action for the threshing processed product, but a shape dedicated to threshing that can suitably hit or plow the threshing processed product. Threshing processed threshing products while forming Towards sense direction downstream side can be favorably transported guide, a result, it is possible to improve the threshing performance and transport performance for threshing treated.

左右の側縁部24Cには、湾曲部24Aの内面と受網17の内縁とに連なる案内面を有するように形成された鋼板製の継目部材50が着脱可能にボルト連結されている。つまり、受網17と天板24との継ぎ目に位置することにより脱穀処理物との接触が激しくなって摩耗し易い継目部材50を着脱可能に構成したことで、その継目部材50を天板24に一体形成した場合のように、継目部材50の摩耗によって天板24の全体を交換する、といった手間や経済的な不利を招くことなく、継目部材50の摩耗に対する処置を適切に行える。   A steel plate seam member 50 formed so as to have a guide surface connected to the inner surface of the curved portion 24A and the inner edge of the receiving net 17 is detachably bolted to the left and right side edge portions 24C. That is, the seam member 50 that is easily worn due to intense contact with the threshing product by being positioned at the seam between the receiving net 17 and the top plate 24 is configured to be detachable. As in the case of being integrally formed with the joint member 50, it is possible to appropriately treat the wear of the joint member 50 without incurring the trouble and economical disadvantage of replacing the entire top plate 24 by the wear of the joint member 50.

ちなみに、各扱歯48の先端と各送塵弁49の下縁との間には、送塵弁49による脱穀処理物の案内を良好にするために小さいクリアランスが設定されている。又、各扱歯48の先端と受網17の内縁との間には、単粒化穀粒の受網17からの漏下を促進させるために、各扱歯48の先端と各送塵弁49の下縁との間に設定したクリアランスよりも大きいクリアランスが設定されている。   Incidentally, a small clearance is set between the tip of each tooth-handling 48 and the lower edge of each dust feed valve 49 in order to improve the guidance of the threshing processed product by the dust feed valve 49. In addition, between the tip of each tooth-handling 48 and the inner edge of the receiving net 17, the tip of each tooth-handling 48 and each dust feed valve are used in order to promote the leakage of single grains from the receiving net 17. The clearance larger than the clearance set between the lower edge of 49 is set.

図3、図4、図6、図12及び図13に示すように、脱穀装置5の前壁26と受網17との間には、供給口25から供給された刈取穀稈を受け止めて、扱胴16の掻込部41による刈取穀稈の掻き込み搬送を補助する搬送補助部材51が配備されている。搬送補助部材51は、扱胴16の下部側を下方から覆う正面視略U字状にボルト連結される2つのプレート51Aによって構成され、脱穀装置5の前壁26や脱穀装置5の上部に前後向きに配備した左右一対の支持フレーム52に着脱可能にボルト連結されている。つまり、刈取穀稈との接触が激しく摩耗し易い搬送補助部材51を着脱可能に構成したことで、その搬送補助部材51を受網17又は左右の支持フレーム52に一体形成した場合のように、搬送補助部材51の摩耗によって搬送補助部材51とともに受網17又は左右の支持フレーム52を交換する、といった手間や経済的な不利を招くことなく、搬送補助部材51の摩耗に対する処置を適切に行える。   As shown in FIGS. 3, 4, 6, 12, and 13, between the front wall 26 of the threshing device 5 and the receiving net 17, the harvested cereal meal supplied from the supply port 25 is received, A conveyance assisting member 51 is provided to assist the raking and conveying of the harvested cereal meal by the raking part 41 of the handling cylinder 16. The conveyance auxiliary member 51 is configured by two plates 51 </ b> A that are bolted in a substantially U shape in front view to cover the lower side of the handling cylinder 16 from below, and front and rear of the front wall 26 of the threshing device 5 and the upper portion of the threshing device 5. Bolts are detachably connected to a pair of left and right support frames 52 arranged in the direction. That is, since the conveyance auxiliary member 51 that is easily contacted with the harvested cereal grind and easily wears is configured to be detachable, the conveyance auxiliary member 51 is integrally formed with the receiving net 17 or the left and right support frames 52. The treatment for the abrasion of the conveyance auxiliary member 51 can be appropriately performed without incurring the trouble and the economical disadvantage of replacing the receiving mesh 17 or the left and right support frames 52 together with the conveyance auxiliary member 51 due to the abrasion of the conveyance auxiliary member 51.

図3、図5、図6及び図14に示すように、受網17は、同一形状に形成された4つの受網部材53によって構成され、左右の支持フレーム52に着脱可能にボルト連結されている。各受網部材53は、基枠53Aに、帯状鋼板からなる複数の縦桟53Bを、扱胴16の周方向に一定間隔を隔てる状態で前後向きに整列配備し、円弧状に湾曲形成した帯状鋼板からなる複数の第1横桟53Cを、扱胴16の支軸方向となる前後方向に所定間隔を隔てる状態で左右向きに整列配備し、円弧状に湾曲形成したピアノ線材からなる複数の第2横桟53Dを、隣接する第1横桟53Cの間において、前後方向に一定間隔を隔てる状態で左右向きに整列配備して、その網目が、扱胴16の周方向に沿う方向の長さが前後方向に沿う方向の長さよりも長くなる横長の矩形に形成されている。   As shown in FIGS. 3, 5, 6, and 14, the receiving net 17 is configured by four receiving net members 53 formed in the same shape, and is detachably bolted to the left and right support frames 52. Yes. Each receiving net member 53 has a base frame 53A in which a plurality of vertical bars 53B made of strip-shaped steel plates are arranged in the front-rear direction in a state of being spaced apart from each other in the circumferential direction of the handling cylinder 16, and are formed in a curved shape in a circular arc shape. A plurality of first horizontal bars 53C made of steel plates are arranged in the left-right direction with a predetermined interval in the front-rear direction as the support shaft direction of the handling cylinder 16, and a plurality of first wires made of piano wire curved in an arc shape are arranged. The two horizontal rails 53D are arranged in the left-right direction with a certain interval in the front-rear direction between the adjacent first horizontal rails 53C, and the mesh has a length in the direction along the circumferential direction of the handling cylinder 16. Is formed in a horizontally long rectangle that is longer than the length in the direction along the front-rear direction.

つまり、受網17を、その網目が扱胴16の回転方向に長い横長の矩形となるように構成したことで、刈取穀稈に対する脱穀処理で得られた単粒化穀粒などが受網17から漏下し易くなり、もって、単粒化穀粒の受網17からの漏下が抑制されることに起因した脱ぷ粒の発生を回避することができる。又、各受網部材53を同一形状に形成したことで、受網17の生産性や組み付け性を向上させることができる。   That is, the receiving net 17 is configured so that the mesh is a horizontally long rectangle in the rotation direction of the handling cylinder 16, so that the single grain obtained from the threshing process on the harvested corn straw is received by the receiving net 17. Therefore, it is possible to avoid the occurrence of degranulation due to the suppression of leakage of the single-grained grains from the receiving net 17. In addition, since the receiving net members 53 are formed in the same shape, the productivity and assembly of the receiving net 17 can be improved.

図3及び図15に示すように、粗選別用のチャフシーブ31は単一の選別プレート54で構成され、その選別方向下手側ほど上方に位置する後上がりの傾斜姿勢でシーブケース29にボルト連結されている。   As shown in FIGS. 3 and 15, the rough sorting chaff sheave 31 is composed of a single sorting plate 54, and is bolted to the sheave case 29 in a back-up and inclined posture located on the lower side in the sorting direction. ing.

選別プレート54の前部側(選別プレート54全体の1/3の領域)には、平面視矩形状に形成された複数の漏下孔54Aが、前列の漏下孔54Aの間に後列の漏下孔54Aが位置する千鳥状に整列形成されている。選別プレート54の後部側(選別プレート54全体の2/3の領域)には、選別片54a,54bを有する平面視矩形状に形成された複数の漏下孔54B,54Cが、前列の漏下孔54B,54Cの間に後列の漏下孔54B,54Cが位置する千鳥状に整列形成されている。   On the front side of the sorting plate 54 (1/3 of the entire sorting plate 54), a plurality of leakage holes 54A formed in a rectangular shape in plan view are arranged between the leakage holes 54A in the front row. It is formed in a zigzag pattern in which the lower holes 54A are located. On the rear side of the sorting plate 54 (2/3 of the sorting plate 54 as a whole), a plurality of leakage holes 54B and 54C formed in a rectangular shape in plan view having sorting pieces 54a and 54b are leaked in the front row. Between the holes 54B and 54C, the rear row leakage holes 54B and 54C are arranged in a staggered manner.

各選別片54a,54bのうち、選別プレート54の左右中央側に位置する選別片54aは、その選別方向下手側ほど幅狭で上方に位置する鱗状に打ち出し形成されている。選別プレート54の左右両端に位置する選別片54bは、左右中央側の選別片54aよりも短尺の矩形状で、その選別方向下手側ほど上方に位置するように打ち出し形成されている。   Among the sorting pieces 54a and 54b, the sorting piece 54a located on the left and right center side of the sorting plate 54 is formed so as to be narrower and closer to the upper side in the sorting direction. The sorting pieces 54b located at the left and right ends of the sorting plate 54 are rectangular in shape shorter than the sorting pieces 54a on the left and right center sides, and are formed so as to be positioned higher on the lower side in the sorting direction.

つまり、粗選別用のチャフシーブ31を単一の選別プレート54で構成することから、例えば、チャフシーブ31を、帯鋼板からなる多数のチャフリップを前後方向に一定間隔を隔てるように整列配備して構成する場合などに比較して、構成の簡素化やコストの削減を図ることができる。   That is, since the chaff sheave 31 for rough sorting is configured by a single sorting plate 54, for example, the chaff sheave 31 is configured by arranging a large number of chaff flips made of strip steel plates so as to be spaced apart in the front-rear direction. Compared with the case where it does, the simplification of a structure and the reduction of cost can be aimed at.

そして、単粒化穀粒の含有率が高い選別処理物が供給されるチャフシーブ31の前部側に選別片54a,54bを備えていない漏下孔54Aを形成したことで、チャフシーブ31の前部側から下方のグレンパン33やグレンシーブ34に漏下する単粒化穀粒が多くなり、結果、単粒化穀粒の回収率を高めることができる。   And the front part of the chaff sheave 31 is formed by forming the leakage hole 54A not provided with the sorting pieces 54a and 54b on the front part side of the chaff sheave 31 to which the processed product with a high content of single grains is supplied. The number of single grains that leak from the side to the lower grain pan 33 and the grain sieve 34 increases, and as a result, the recovery rate of the single grains can be increased.

又、チャフシーブ31の後部側に、選別片54a,54bを備えた漏下孔54B,54Cを千鳥状で前後左右に整列形成したことで、篩い選別処理においては、チャフシーブ31上の選別処理物が左右方向に片寄りなく均等に分配されることになり、よって、単粒化穀粒の各漏下孔54B,54Cからの漏下を促進させることができる。しかも、チャフシーブ31を後上がりの傾斜姿勢で装備したことで、チャフシーブ31を水平姿勢で装備する場合に比較して、篩い選別処理において、チャフシーブ31が選別処理物を選別処理方向上手側の上方に向けて押し出す力が大きくなり、これによって、選別処理物の選別方向下手側への搬送が抑制されるとともに、選別処理物の上下動が激しくなって、選別処理物の比重差選別をより効果的に行えることから、比重の大きい穀粒の各漏下孔54B,54Cからの漏下が促進され、単粒化穀粒が排出口23から車外に放出される3番ロスの発生を効果的に抑制することができ、結果、穀粒回収効率の向上を図ることができる。   Further, the leakage holes 54B and 54C provided with the sorting pieces 54a and 54b are formed in a staggered manner in the front, rear, left and right sides on the rear side of the chaff sheave 31, so that the sorting processed product on the chaff sheave 31 is not separated in the sieve sorting process. It will be evenly distributed in the left-right direction, so that the leakage of single grains from the respective leakage holes 54B, 54C can be promoted. In addition, since the chaff sheave 31 is installed in a rearwardly inclined posture, the chaff sheave 31 moves the sorting processing product to the upper side in the sorting processing direction in the sieve sorting process as compared with the case where the chaff sheave 31 is installed in the horizontal posture. This increases the force that pushes out the product, and this suppresses the transport of the sorted product to the lower side of the sorting direction, and the vertical movement of the sorted product becomes intense, making the specific gravity difference sorting of the sorted product more effective. Therefore, it is possible to effectively prevent the occurrence of the third loss in which the leakage of the grains having a large specific gravity from the respective leakage holes 54B and 54C is promoted and the single grains are discharged from the outlet 23 to the outside of the vehicle. As a result, the grain recovery efficiency can be improved.

更に、チャフシーブ31における左右両端の選別片54bを、左右中央側の選別片54aよりも短尺に形成したことで、チャフシーブ31における選別処理物が堆積し易い左右両端部の漏下孔54Cからの穀粒などの漏下を促進させることができ、結果、チャフシーブ31の左右両端部での選別処理物の堆積に起因した選別効率の低下を回避することができる。   Further, the sorting pieces 54b at the left and right ends of the chaff sheave 31 are formed to be shorter than the sorting pieces 54a at the center of the left and right sides, so that the grains from the leakage holes 54C at the left and right ends where the sorting processed product in the chaff sheave 31 is easy to accumulate. Leakage of grains and the like can be promoted, and as a result, it is possible to avoid a reduction in sorting efficiency due to the accumulation of sorting processed products at the left and right ends of the chaff sheave 31.

ちなみに、チャフシーブ31に形成される選別片54a,54bを備えていない漏下孔54Aと、選別片54a,54bを備えた漏下孔54B,54Cとの割合は、選別する穀粒の種類などに応じて種々の変更が可能である。   Incidentally, the ratio of the leakage holes 54A that are not provided with the sorting pieces 54a and 54b formed in the chaff sheave 31 and the leakage holes 54B and 54C that are provided with the sorting pieces 54a and 54b depends on the types of grains to be selected. Various changes can be made accordingly.

又、選別プレート54の前部側に、短尺で矩形状の選別片54bを有するように平面視矩形状に形成された複数の漏下孔54Cを、前列の漏下孔54Cの間に後列の漏下孔54Cが位置する千鳥状に整列形成するようにしてもよい。   In addition, a plurality of leakage holes 54C formed in a rectangular shape in plan view so as to have a short rectangular selection piece 54b on the front side of the selection plate 54 are arranged between the front row leakage holes 54C. You may make it form in a zigzag form where the leakage hole 54C is located.

図3に示すように、唐箕20からの選別風のうち、上段の風路R1を通る選別風は、シーブケース29に形成した風路R4を通って、扱胴16の第2支持プレート45に向けて流動するようになっている。これによって、第2支持プレート45によって脱穀処理方向下手側への流動が阻止される脱穀処理物を、扱胴16の周囲に向けて風力搬送することができ、結果、脱穀処理物が第2支持プレート45の直前箇所で堆積して、脱穀処理に支障を来す虞を未然に回避することができる。   As shown in FIG. 3, of the selected air from the tang 20, the selected air passing through the upper air passage R <b> 1 passes through the air passage R <b> 4 formed in the sheave case 29 to the second support plate 45 of the handling cylinder 16. It comes to flow toward. Thereby, the threshing processed product that is prevented from flowing toward the lower side in the threshing processing direction by the second support plate 45 can be wind-winded toward the periphery of the handling cylinder 16, and as a result, the threshing processed product is supported in the second support. It is possible to avoid the possibility of depositing immediately before the plate 45 and hindering the threshing process.

図3及び図6に示すように、扱胴16は、その後端に位置する扱歯48Aが、受網17の後端よりも後方に位置して排稈口18に臨むようになっている。つまり、扱胴16の後端においては、受網17が存在しないことで、その周囲に比較的大きい空間が形成された状態となっており、これによって、扱胴後端の扱歯48Aに脱粒穀稈が絡み付いていたとしても、その脱粒穀稈は、扱胴16の回転に伴う遠心力で、その扱歯48Aの先端から抜け出るようになり、結果、扱胴16の後端での扱歯48Aに対する引っ掛かりに起因した脱粒穀稈の滞留を効果的に抑制することができ、脱粒穀稈の排稈口18からの放出を促進させることができる。   As shown in FIGS. 3 and 6, the handle 16 is configured such that the handle teeth 48 </ b> A located at the rear end thereof are positioned rearward of the rear end of the receiving net 17 and face the discharge port 18. That is, since the receiving net 17 is not present at the rear end of the handling cylinder 16, a relatively large space is formed around the receiving net 17. Even if the cereals are entangled, the threshing cereals come out of the tips of the teeth 48A due to the centrifugal force associated with the rotation of the case 16, and as a result, the teeth are treated at the rear end of the handle 16. It is possible to effectively suppress the retention of the shed cereal meal due to the catch on 48A, and it is possible to promote the release of the shed cereal meal from the discharge port 18.

〔別実施形態〕     [Another embodiment]

〔1〕扱胴16としては、掻込部41を備えないものであってもよく、又、掻込部41に、螺旋歯43の代わりに整梳歯又は扱歯48を備えるものであってもよい。 [1] The handling cylinder 16 may not be provided with the scraping portion 41, and the scraping portion 41 is provided with an orthodontic tooth or a handling tooth 48 instead of the helical tooth 43. Also good.

〔2〕扱胴16としては、各扱胴フレーム(本体構成部材)47に、丸棒鋼材、角棒鋼材、角パイプ鋼材、アングル材、又はチャンネル材などを採用したものであってもよい。 [2] As the handling cylinder 16, a round bar steel material, a square bar steel material, a square pipe steel material, an angle material, a channel material, or the like may be used for each handling frame (main body constituent member) 47.

〔3〕扱胴16において、扱胴フレーム(本体構成部材)47の装備数量は種々の変更が可能であり、例えば、8本の扱胴フレーム47を装備するようにしてもよい。 [3] In the handling cylinder 16, the number of equipment of the handling cylinder frames (main body constituent members) 47 can be variously changed. For example, eight handling cylinder frames 47 may be installed.

〔4〕扱胴16において、複数の扱胴フレーム(本体構成部材)47を各支持プレート44〜46に向き変更不能に固着するようにしてもよい。 [4] In the handling cylinder 16, a plurality of handling cylinder frames (main body constituent members) 47 may be fixed to the support plates 44 to 46 so that their orientation cannot be changed.

〔5〕扱胴16としては、円筒状に形成されたプレートを本体構成部材47とするドラム状に構成されたものであってもよい。 [5] The handling cylinder 16 may be configured in a drum shape having a plate formed in a cylindrical shape as a main body constituting member 47.

〔6〕本体構成部材47に装備する全ての扱歯48を、本体構成部材47に溶接固定するようにしてもよく、又、本体構成部材47に着脱可能にボルト連結するようにしてもよい。 [6] All the teeth 48 mounted on the main body constituent member 47 may be fixed by welding to the main body constituent member 47, or may be detachably bolted to the main body constituent member 47.

〔7〕本体構成部材47に装備する全ての扱歯48又は一部の扱歯48を、扱胴16の回転に伴って、脱穀処理物を脱穀処理方向下手側に向けて案内する案内面を有する羽根状に形成するようにしてもよく、又、その先端部が、扱胴16の回転に伴って、脱穀処理物を脱穀処理方向下手側に向けて案内する案内部として機能するようにL字状に屈曲形成してもよい。 [7] A guide surface for guiding all of the teeth 48 or a part of the teeth 48 mounted on the main body constituting member 47 toward the lower side in the threshing process direction as the handle 16 rotates. L may be formed so as to have a feather shape, and the front end portion functions as a guide unit that guides the threshing product toward the lower side in the threshing processing direction as the handling cylinder 16 rotates. It may be bent in a letter shape.

〔8〕扱歯48として、角棒鋼材や丸パイプ材などを採用するようにしてもよく、又、U字状やV字状に屈曲形成されたものを採用するようにしてもよい。 [8] As the tooth-handling 48, a square bar steel material, a round pipe material or the like may be employed, or a U-shaped or V-shaped bent shape may be employed.

〔9〕扱歯48の配置間隔としては種々の変更が可能であり、例えば、扱胴フレーム(本体構成部材)47の装備本数を3の倍数とする場合には、各扱歯48が、隣の扱胴フレーム(本体構成部材)47に装備された扱歯48と前後方向で1/3ピッチ分ずれた状態で位置するように、又、扱胴フレーム(本体構成部材)47の装備本数を4の倍数とする場合には、各扱歯48が、隣の扱胴フレーム(本体構成部材)47に装備された扱歯48と前後方向で1/4ピッチ分ずれた状態で位置するように配置設定してもよい。又、例えば、後部側での扱歯48の前後間隔が前部側での扱歯48の前後間隔よりも大きくなるように、前部側と後部側とで扱歯48の配置間隔を異ならせるようにしてもよい。 [9] Various changes can be made to the arrangement interval of the tooth handling teeth 48. For example, when the number of equipment of the handling cylinder frame (main body constituent member) 47 is a multiple of 3, each tooth handling 48 is adjacent to each other. In addition, the number of the handling cylinder frames (main body constituent members) 47 is set so as to be positioned with a shift of 1/3 pitch in the front-rear direction from the tooth handling 48 provided on the main body frame (main body constituent members) 47 of the above. In the case of a multiple of 4, each tooth 48 is positioned so as to be shifted by a quarter pitch in the front-rear direction from the tooth 48 mounted on the adjacent barrel frame (main body constituent member) 47. Arrangement may be set. Also, for example, the arrangement interval of the tooth handling 48 is made different between the front side and the rear side so that the front-rear spacing of the tooth handling 48 on the rear side is larger than the front-rear spacing of the tooth handling 48 on the front side. You may do it.

〔10〕天板24に装備する全ての送塵弁49又は一部の送塵弁49を、天板24の左右いずれか一方の側縁部24C、又は、左右双方の側縁部24Cにわたらない短い長さに形成するようにしてもよい。 [10] When all the dust feed valves 49 or some of the dust feed valves 49 provided on the top plate 24 are placed on either the left or right side edge 24C of the top plate 24 or both the left and right side edges 24C. You may make it form in the short length which is not.

〔11〕送塵弁49を、扱室14内の脱穀処理物量に応じた開度調節が可能な可動式に構成して、脱穀性能や脱穀効率の向上を更に図れるようにしてもよい。 [11] The dust feed valve 49 may be configured to be movable so that the degree of opening can be adjusted according to the amount of threshing processed material in the handling chamber 14 so that the threshing performance and the threshing efficiency can be further improved.

〔12〕天板24としては、その湾曲部24Aが扱歯48の先端が描く回転軌跡Kに沿って湾曲するように形成されたものであってもよい。又、湾曲部24Aの代わりに、扱胴16の上部側を上方から覆うように屈曲形成された屈曲部を有するように構成されたものであってもよい。 [12] The top plate 24 may be formed such that the curved portion 24A is curved along the rotation locus K drawn by the tip of the tooth handle 48. Further, instead of the bending portion 24A, the bending portion may be configured to be bent so as to cover the upper side of the handling cylinder 16 from above.

14 扱室
15 支軸
16 扱胴
24 天板
47 本体構成部材
48 扱歯
49 送塵弁
14 Handling chamber 15 Support shaft 16 Handling cylinder 24 Top plate 47 Main body component 48 Handling teeth 49 Dust feed valve

本発明は、脱穀装置、及びこの脱穀装置を搭載した全稈投入型コンバインに関する。 The present invention, threshing apparatus, and relates to all culm on type Konbai down mounted with the threshing apparatus.

上記のような脱穀装置及び全稈投入型コンバインの脱穀構造としては、扱室に、外周部に螺旋状の扱歯を有するように構成された扱胴を装備することが一般的である(例えば特許文献1参照)。 As a threshing structure for the above-described threshing apparatus and whole throw-in type combine harvester, it is common to equip the handling chamber with a handling cylinder configured to have helical handling teeth on the outer periphery (for example, Patent Document 1).

特開平11−266666号公報JP-A-11-266666

つまり、全稈投入型のコンバインにおいては、自脱型コンバインのように脱穀装置にフィードチェーンなどの刈取穀稈搬送用の搬送装置が装備されていないことから、上記のような扱胴を装備することで、扱胴の回転に伴って、脱穀処理物が脱穀処理されながら脱穀処理方向下手側に向けてスクリュー搬送されるように構成しているのである。   In other words, in the all-throw-in type combine combiner, the threshing device is not equipped with a feed device such as a feed chain for the threshing device as in the self-removable combine combiner. Thus, with the rotation of the barrel, the threshing product is screwed toward the lower side in the threshing process direction while being threshed.

しかしながら、上記のように扱胴の外周部に螺旋状の扱歯を装備すると、脱穀処理物に対する扱歯の打壁や梳き込みなどによる脱穀作用が不十分になって、穀粒の単粒化を促進させることが難しくなることから、脱穀性能の向上を図る上において改善の余地がある。 However, when a spiral tooth-handling is provided on the outer periphery of the barrel as described above, the threshing action of the tooth-handling wall and the squeezing of the processed threshing product becomes insufficient, and the grain is made into a single grain. since make it difficult to promote, there is room for improvement in terms of improving the threshing performance.

本発明の目的は、脱穀性能の向上を図ることができる脱穀装置、及びこれを搭載した全稈投入型コンバインを提供することにある。 An object of the present invention is to provide a threshing apparatus, and all the culm on type Konbai down mounted with this which can be improved threshing performance.

上記の目的を達成するため、本発明に係る脱穀装置では、支軸を支点にして回転駆動されることで、扱室に供給された刈取穀稈に対して脱穀処理を施す扱胴を備え、前記扱胴を、前記支軸に沿う姿勢で、前記扱胴の周方向に所定間隔を隔てて並ぶように配備される複数の棒状の扱胴フレームと、それらの扱胴フレームを支持するように前記支軸の前後に備えた支持プレートと、前記扱胴フレームのそれぞれに、前記扱胴フレームから前記扱胴の外方に向けて突出する姿勢で、前後方向に並んで装備される複数の扱歯とから構成し、前記扱胴フレームに複数の取付孔を形成し、前記扱歯を前記各取付孔に挿通して前記扱胴フレームに固定してあることを特徴とする。 In order to achieve the above object, the threshing apparatus according to the present invention includes a handling cylinder that performs a threshing process on the harvested cereal meal supplied to the handling chamber by being rotationally driven around a support shaft . the pre-Symbol threshing drum, in a posture along the support shaft, so as to support a plurality of rod-shaped threshing drum frame to be deployed so as to be aligned at a predetermined distance in a circumferential direction of the threshing drum, their threshing drum frame A plurality of support plates arranged in the front-rear direction in a posture projecting outward from the handle frame to the support plate provided on the front and rear of the support shaft and the handle frame, respectively . And a plurality of attachment holes formed in the treatment frame, and the treatment teeth are inserted into the attachment holes and fixed to the treatment frame .

この特徴構成によると、扱室に供給された刈取穀稈は、扱胴の回転に伴って、複数の扱歯による多くの打撃や梳き込みによる脱穀作用を受けるAccording to this characteristic structure, culms mowing supplied to threshing chamber in association with the rotation of the threshing drum, Keru receive a threshing action by many striking and narrowing combing with multiple扱歯.

つまり、扱胴に複数の扱歯を備えて、脱穀処理物に対する扱歯の打撃や梳き込みなどによる好適な脱穀作用を十分に得ることができる。 That is, it is possible to sufficiently obtain a suitable threshing action by providing a plurality of teeth on the handle cylinder and hitting or biting the teeth on the threshing product.

従って、脱穀性能の向上を図ることのできる脱穀装置を提供することができる。Therefore, a threshing device capable of improving the threshing performance can be provided.

以下、上記特徴構成に加えると一層有利と考えられる、脱穀装置の特徴構成を列挙する。Hereinafter, the characteristic configurations of the threshing apparatus, which are considered to be more advantageous when added to the above characteristic configuration, are listed.
前記扱歯を、前記扱胴の径方向内側及び径方向外側の2箇所で前記扱胴フレームに支持してある。The teeth are supported on the barrel frame at two locations on the radially inner side and radially outer side of the barrel.
前記取付孔は、前記扱胴フレームに貫通してある。The mounting hole penetrates the handling cylinder frame.
前記扱歯を、前記扱胴フレームにナットによって着脱可能に固定してある。The teeth are detachably fixed to the barrel frame with nuts.
前記扱歯が段付きの丸棒鋼材で構成されている。The teeth are made of stepped round bar steel.
前記扱歯を、前記扱胴フレームに溶接固定してある。The teeth are fixed by welding to the barrel frame.
前記扱歯を、前記扱胴の径方向内側で溶接してある。The teeth are welded on the radially inner side of the barrel.
前記扱歯を、前記扱胴の径方向外側で溶接してある。The teeth are welded on the radially outer side of the barrel.
前記扱歯が段無しの丸棒鋼材で構成されている。The teeth are made of stepless round bar steel.
前記扱歯の中心が、前記支軸の中心と前記扱胴フレームの中心とを通る線上に位置する。The center of the tooth treatment is located on a line passing through the center of the support shaft and the center of the treatment drum frame.
前記扱歯が前記扱胴フレームに、前記扱胴の外方に向けて片持ち状に突出する姿勢で装備されている。The teeth are mounted on the barrel frame in a cantilever-like posture toward the outside of the barrel.
前記扱胴フレームに前記複数の扱歯が、この扱胴フレームの長手方向に一定ピッチで並んで装備されている。The plurality of teeth are mounted on the barrel frame side by side at a constant pitch in the longitudinal direction of the barrel frame.
前記扱胴の回転方向において隣接する2本の前記扱胴フレームのうち、一方の扱胴フレームの各扱歯と他方の扱胴フレームの各扱歯とが、扱胴フレームの前後方向に互いにずらせた位置に取り付けられている。Of the two barrels adjacent to each other in the rotation direction of the barrel, the teeth of one barrel frame and the teeth of the other barrel frame are shifted from each other in the longitudinal direction of the barrel frame. It is attached at the position.
前記扱胴の内部に前記扱室に連通する内部空間を形成し、前記扱胴に、その内部空間を前後に隔てる支持部材を装備してある。An inner space communicating with the handling chamber is formed inside the handling cylinder, and a support member is provided on the handling cylinder to separate the inner space in the front-rear direction.
前記扱胴の周囲の処理物と前記内部空間に入り込んだ処理物とを攪拌しながら、前記扱胴フレーム及び前記扱歯の打撃による扱き処理を施すように構成してある。A treatment process is performed by striking the treatment cylinder frame and the tooth treatment while stirring the treatment object around the treatment cylinder and the treatment object that has entered the internal space.
前記扱胴の扱き処理部は、前記支軸の前部に一体装備した前記支持プレートとしての第1支持プレートと、前記支軸の後部に一体装備した前記支持プレートとしての第3支持プレートと、前記支軸の前後中間部に一体装備した第2支持プレートと、を備える。The handling section of the handling cylinder includes a first support plate as the support plate integrally provided at the front portion of the support shaft, a third support plate as the support plate integrally provided at the rear portion of the support shaft, A second support plate integrally provided at the front and rear intermediate portions of the support shaft.
また本発明は、これらの特徴構成のうちいずれかを有する脱穀装置を搭載した全稈投入型コンバインにも関する。The present invention also relates to an all-fired combine combine equipped with a threshing apparatus having any one of these characteristic configurations.

全稈投入コンバインの全体側面図Whole side view of all throwing type combine harvester 全稈投入コンバインの全体平面図Overall plan view of all throwing type combine harvester 脱穀装置の縦断側面図Longitudinal side view of threshing device 脱穀装置の前端部の構成を示す一部縦断正面図Partially longitudinal front view showing the configuration of the front end of the threshing device 脱穀装置の前後中間部の構成を示す一部縦断正面図Partially longitudinal front view showing the configuration of the front and rear intermediate part of the threshing device 扱胴や搬送補助部材などの構成を示す要部の平面図Plan view of the main parts showing the configuration of the handling cylinder and conveyance auxiliary member 扱胴の構成を示す要部の横断平面図Cross-sectional plan view of the main part showing the configuration of the barrel 扱胴の構成を示す扱胴の縦断背面図Longitudinal rear view of the barrel showing the configuration of the barrel 扱胴の別構成を示す要部の横断平面図Cross-sectional plan view of the main part showing another configuration of the barrel 天板の構成を示す要部の縦断正面図Longitudinal front view of the main part showing the configuration of the top plate 送塵弁の長さや配置を示す要部の横断平面図Cross-sectional plan view of the main part showing the length and arrangement of the dust delivery valve 搬送補助部材の構成を示す要部の平面図The top view of the principal part which shows the structure of a conveyance auxiliary member 搬送補助部材の構成を示す要部の縦断側面図Longitudinal side view of the main part showing the configuration of the conveyance auxiliary member 受網の構成を示す要部の斜視図Perspective view of main part showing configuration of receiving network チャフシーブの構成を示す要部の斜視図Perspective view of main part showing configuration of chaff sheave

図1には、稲や麦などを収穫対象とする全稈投入コンバインの全体側面が示されており、このコンバインは、角パイプ鋼材などで形成した車体フレーム1に、エンジン2や図外の変速装置などを搭載し、車体フレーム1の下部に、変速装置などを介して伝達されるエンジン2からの動力で駆動される左右一対のクローラ式走行装置3を装備し、車体フレーム1の前部に、収穫対象の植立穀稈を刈り取って後方に向けて搬送する刈取搬送装置4を昇降揺動可能に連結し、車体フレーム1の左半部に、刈取搬送装置4からの刈取穀稈に対して脱穀処理を施すとともに、その脱穀処理で得られた処理物に対して選別処理を施す脱穀装置5を搭載し、車体フレーム1の右半部に、脱穀装置5からの穀粒を貯留するとともに、その貯留した穀粒の袋詰めを可能にする袋詰装置6を搭載し、車体フレーム1における袋詰装置6の前方箇所に搭乗運転部7を形成して構成されている。 FIG. 1 shows an overall side view of an all-throw- type combine that harvests rice, wheat, and the like. This combine is attached to a vehicle body frame 1 made of square pipe steel or the like on an engine 2 or an unshown figure. A transmission and the like are mounted, and a pair of left and right crawler type traveling devices 3 driven by power from the engine 2 transmitted via the transmission and the like are mounted on the lower part of the vehicle body frame 1. In addition, a cutting and conveying device 4 that cuts and conveys the planted cereals to be harvested and is moved backward is connected to the left half of the body frame 1 to the harvested cereals from the cutting and conveying device 4. On the other hand, the threshing device 5 for performing the threshing process and selecting the processed product obtained by the threshing process is mounted, and the grains from the threshing device 5 are stored in the right half of the body frame 1. Along with the storage of the stored grains Equipped with a bagging device 6 which enables and is configured to form a driver's section 7 in front portions of the bagging apparatus 6 of the body frame 1.

左右のクローラ式走行装置3は、搭乗運転部7に備えた操縦レバー8の左右方向への揺動操作に基づいて、それらが等速駆動されることで直進状態を現出し、それらが差動することで旋回状態を現出するように構成されている。   The left and right crawler type traveling devices 3 are driven at a constant speed based on the swinging operation of the control lever 8 provided in the boarding operation unit 7 in the left-right direction, and thus the straight traveling state appears. It is comprised so that a turning state may appear by doing.

図1及び図2に示すように、刈取搬送装置4は、車体の走行に伴って、その前部左右両端に装備したデバイダ9が植立穀稈を収穫対象の植立穀稈と収穫対象外の植立穀稈とに梳き分け、その前部上方に配備した回転リール10が、左右のデバイダ9で梳き分けられた収穫対象の植立穀稈を後方に向けて掻き込み、その底部に装備したバリカン形の切断機構
11が収穫対象の植立穀稈の株元側を切断し、切断機構11の後方に配備したオーガ12が、切断機構11による切断後の植立穀稈(刈取穀稈)を左右方向の所定箇所に寄せ集めるとともに、その所定箇所において後方に向けて送り出し、その所定箇所から脱穀装置5の前上部にわたる搬送コンベヤからなるフィーダ13が、オーガ12からの刈取穀稈を脱穀装置5に向けて搬送するように構成されている。又、操縦レバー8の前後方向への揺動操作に基づいて、車体フレーム1とフィーダ13とにわたって架設した油圧式の昇降シリンダ(図示せず)が伸縮作動することで、脱穀装置5とフィーダ13との連結点を支点にして昇降揺動し、その昇降揺動で、植立穀稈に対する切断機構11の高さ位置を変更する刈り高さ調節を行えるように構成されている。
As shown in FIG. 1 and FIG. 2, the cutting and conveying device 4 is configured such that the dividers 9 provided on the left and right ends of the front part of the vehicle body travel with the planted cereals to be harvested and the harvested cereals not to be harvested. Rotating reel 10 deployed above the front part of the planted cereal rice cake, scrapes the planted cereal rice harvested by the left and right dividers 9 toward the rear, and equips it at the bottom. The clipper-shaped cutting mechanism 11 cuts the planted side of the planted culm to be harvested, and the auger 12 deployed behind the cutting mechanism 11 is the planted cereal (cutted cereal culm after cutting by the cutting mechanism 11). ) Are gathered at a predetermined position in the left-right direction, and are fed backward at the predetermined position, and a feeder 13 composed of a transport conveyor extending from the predetermined position to the front upper part of the threshing device 5 threshs the harvested cereals from the auger 12 To be transported toward the device 5 It is configured. Further, the threshing device 5 and the feeder 13 are expanded and contracted by a hydraulic lifting cylinder (not shown) installed over the body frame 1 and the feeder 13 based on the swinging operation of the control lever 8 in the front-rear direction. The swaying movement of the cutting mechanism 11 with respect to the planted cereal can be adjusted by the up-and-down swinging with the connecting point as a fulcrum.

図3〜5に示すように、脱穀装置5は、その上部に形成した扱室14に、刈取穀稈の搬送方向に沿って架設した前後向きの支軸15を支点にして回転する扱胴16を配備し、その扱胴16の下方に、扱胴16の下部側を下方から覆う正面視U字状に形成された受網17を装備し、脱穀装置5の脱穀処理方向下手側端部となる受網17の後方に排稈口18を形成し、受網17の下方に揺動選別機構19を設け、その揺動選別機構19の前下方に唐箕20を配備し、揺動選別機構19の前部側下方に1番回収部21を形成し、揺動選別機構19の後部側下方に2番回収部22を形成し、揺動選別機構19の後方に排出口23を形成し、扱胴16の上部側を上方から覆う天板24を備えて構成されている。   As shown in FIGS. 3 to 5, the threshing device 5 is a handling cylinder 16 that rotates in a handling chamber 14 formed in the upper part thereof with a support shaft 15 that is laid in the conveying direction of the harvested cereal rice cake as a fulcrum. And a lower end of the threshing device 5 in the threshing processing direction, and a receiving net 17 formed in a U shape in front view covering the lower side of the handling cylinder 16 from below. A discharge port 18 is formed at the rear of the receiving net 17, a swing sorting mechanism 19 is provided below the receiving net 17, and a red pepper 20 is provided in front of and below the swing sorting mechanism 19. The first recovery portion 21 is formed below the front side of the front side, the second recovery portion 22 is formed below the rear side of the swing sorting mechanism 19, and the discharge port 23 is formed behind the swing sorting mechanism 19. A top plate 24 that covers the upper side of the trunk 16 from above is provided.

扱室14は、扱胴16を覆う受網17や天板24などによって区画形成され、その前端下方部位に供給口25が形成され、その供給口25にフィーダ13の後端部が接続され、そのフィーダ13で搬送された刈取穀稈の全体が脱穀処理物として供給口25から投入供給される。   The handling chamber 14 is partitioned and formed by a receiving net 17 that covers the handling cylinder 16, a top plate 24, and the like, a supply port 25 is formed at a lower part of the front end, and the rear end of the feeder 13 is connected to the supply port 25. The whole of the harvested cereal meal conveyed by the feeder 13 is input and supplied from the supply port 25 as a threshing processed product.

扱胴16は、その支軸15が脱穀装置5の前壁26と後壁27とにわたって回転可能に架設され、唐箕20などを介して伝達されるエンジン2からの動力で、支軸15を支点にして正面視右回りに回転駆動されることで、扱室14に供給された刈取穀稈に対して脱穀処理を施して、穀粒の単粒化を促しながら、その刈取穀稈を脱穀処理方向下手側となる後方に向けて搬送する。   The handling cylinder 16 has a support shaft 15 that is rotatably mounted on the front wall 26 and the rear wall 27 of the threshing device 5, and is supported by the support shaft 15 with power from the engine 2 transmitted through the carp 20 or the like. The threshing process is applied to the harvested cereals supplied to the handling room 14 by being rotated clockwise as viewed from the front, and the threshing process is performed on the harvested cereals while promoting the singulation of the grains. Transport toward the rear, which is the lower side of the direction.

受網17は、格子状に形成されたコンケーブ受網であり、扱室14に供給された刈取穀稈を受け止めて、刈取穀稈に対する扱胴16の脱穀処理を補助し、その脱穀処理で得られた単粒化穀粒や枝梗付き穀粒、あるいは、脱穀処理で発生した稈屑などを下方の揺動選別機構19に向けて漏下させる一方で、脱粒穀稈などの揺動選別機構19への漏下を防止する。   The receiving net 17 is a concave receiving net formed in a lattice shape, receives the harvested cereal meal supplied to the handling chamber 14, assists the threshing process of the handling cylinder 16 with respect to the harvested grain meal, and is obtained by the threshing process. Swaying sorting mechanism such as threshing cereal mash while letting the cerealized grains and cereals with branch branch or swarf generated by threshing process leak to the swaying sorting mechanism 19 below Prevent leakage to 19.

揺動選別機構19は、カム式の駆動機構28によって前後方向に揺動駆動されるシーブケース29の上部に、粗選別用のグレンパン30とチャフシーブ31とストローラック32とを、その順にシーブケース29の前側から配備し、シーブケース29の下部に、精選別用のグレンパン33とグレンシーブ34とを、その順にシーブケース29の前側から配備して構成されている。そして、単粒化穀粒や稈屑などが混在する状態で受網17から漏下した選別処理物を、上部のグレンパン30やチャフシーブ31あるいはストローラック32で受け止めて、篩い選別による粗選別処理を施し、かつ、単粒化穀粒や枝梗付き穀粒などが混在する状態でチャフシーブ31から漏下した選別処理物を、下部のグレンパン33やグレンシーブ34で受け止めて、篩い選別による精選別処理を施して、選別処理物を、1番物としての単粒化穀粒と、2番物としての枝梗付き穀粒や稈屑などの混在物と、3番物としての稈屑などの塵埃とに選別する。   The swing sorting mechanism 19 has a rough sorting grain pan 30, chaff sheave 31, and stroller 32 in that order on the sheave case 29 that is driven to swing back and forth by a cam-type drive mechanism 28. In the lower part of the sheave case 29, a fine sorting grain pan 33 and a grain sheave 34 are arranged in that order from the front side of the sheave case 29. And the sorting processed material leaked from the receiving net 17 in a state where single grains and swarf are mixed is received by the upper grain pan 30, chaff sheave 31 or Strollac 32, and rough sorting processing by sieve sorting is performed. The processed material leaked from the chaff sheave 31 in a state where a single grain or a grain with branch stems is mixed is received by the lower grain pan 33 or the grain sieve 34 and subjected to a fine sorting process by sieving. Applying and sorting the processed products, single grains as No. 1, mixed grains such as grain with branch branch and No. 2 as No. 2, and dust such as Soup as No. 3 To sort.

唐箕20は、ベルト式の伝動機構35を介して伝達されるエンジン2からの動力で、その支軸20Aを支点にして回転駆動されることで選別風を生起し、その選別風が、3つの
風路R1〜R3を通って、受網17から漏下した選別処理物や、揺動選別機構19で選別される選別処理物などに向けて供給されることで、選別処理物に対して風力選別処理を施して、選別処理物から比重の小さい稈屑などを吹き分けて、脱穀処理方向下手側の排出口23に向けて搬送する。
The carp 20 is driven by the power from the engine 2 transmitted through the belt-type transmission mechanism 35, and is driven to rotate about the support shaft 20A, thereby generating a sorting wind. By being supplied toward the sorting processed product leaked from the receiving network 17 or the sorting processed product sorted by the swing sorting mechanism 19 through the air passages R1 to R3, A sorting process is performed to blow off swarf or the like having a small specific gravity from the sorted product, and convey it toward the outlet 23 on the lower side in the threshing process direction.

1番回収部21は、唐箕20からの選別風でワラ屑などの塵埃が除去された状態で、揺動選別機構19のグレンシーブ34から漏下した単粒化穀粒を、1番物として回収し、回収した1番物を、その底部に左右向きに配備した1番スクリュー36で、その右端に連通接続した揚送スクリュー37(図2参照)に向けて搬送する。 The first recovery unit 21 recovers the single-grained grains that have leaked from the grain sieve 34 of the swing sorting mechanism 19 in the state where dust such as straw scraps has been removed by the sorting wind from the Karatsu 20. Then, the recovered first item is conveyed toward the lifting screw 37 (see FIG. 2) that is connected to the right end of the first screw 36 that is arranged in the left-right direction at the bottom.

2番回収部22は、揺動選別機構19のグレンシーブ34から漏下せずにグレンシーブ34の後端から流下した枝梗付き穀粒や稈屑などの混在物、及び、揺動選別機構19のストローラック32から漏下した枝梗付き穀粒や稈屑などの混在物を2番物として回収し、回収した2番物を、その底部に左右向きに配備した2番スクリュー38で、その右端に連通接続した2番還元機構39(図2参照)に向けて搬送する。   The second recovery unit 22 includes a mixture of grains such as branches and cereals that flow down from the rear end of the grain sieve 34 without leaking from the grain sieve 34 of the rocking sorting mechanism 19, and the rocking sorting mechanism 19. A mixture such as cereal grains and sawdust leaking from the Strollac 32 is collected as No. 2 and the No. 2 screw 38 arranged at the bottom side of the collected No. 2 is arranged at the right end. To the second reduction mechanism 39 (see FIG. 2) that is connected in communication.

揚送スクリュー37は、1番スクリュー36で搬送された1番物を揚送して、袋詰装置6の上部に備えた穀粒タンク40に供給する(図1及び図2参照)。2番還元機構39は、2番スクリュー38で搬送された2番物に対して再び脱穀処理を施す再処理部(図示せず)を備え、その再処理部による脱穀処理後の2番物を揚送して揺動選別機構19に還元する(図2参照)。   The lifting screw 37 lifts the first item conveyed by the first screw 36 and supplies it to the grain tank 40 provided at the upper part of the bagging device 6 (see FIGS. 1 and 2). The second reduction mechanism 39 includes a reprocessing unit (not shown) that performs a threshing process again on the second item conveyed by the second screw 38, and the second item after the threshing process by the reprocessing unit. It is transported and returned to the swing sorting mechanism 19 (see FIG. 2).

排出口23は、受網17から漏下せずに排稈口18から流下する脱粒穀稈や、篩い選別処理や風力選別処理で揺動選別機構19の後方に選別搬送された稈屑などを車外に放出する。   The discharge port 23 is used for removing cereal cereals that do not leak from the receiving net 17 and flow down from the discharge port 18, and swarf sorted and conveyed to the rear of the oscillating and sorting mechanism 19 by a sieving sorting process or a wind sorting process. Release outside the vehicle.

図3〜8に示すように、扱胴16は、その前端部に装備した円錐台状の掻込部41と、その掻込部41の後端に連接した扱き処理部42とを備えて構成されている。掻込部41の外周面には、扱胴16の回転作動時に、供給口25から供給された刈取穀稈を後方の扱き処理部42に向けて掻き込み搬送する2枚の螺旋歯43が一体装備されている。   As shown in FIGS. 3 to 8, the handling cylinder 16 includes a frustoconical scoring portion 41 provided at the front end portion thereof, and a handling processing portion 42 connected to the rear end of the scavenging portion 41. Has been. On the outer peripheral surface of the scraping unit 41, two spiral teeth 43 that scrape and convey the harvested cereal meal supplied from the supply port 25 toward the rear handling processing unit 42 when the handling cylinder 16 is rotated are integrated. Equipped.

扱き処理部42は、支軸15の前部に一体装備した第1支持プレート(支持プレートに相当)44、支軸15の前後中間部に一体装備した第2支持プレート(支持部材に相当)45、支軸15の後端部に一体装備した第3支持プレート(支持プレートに相当)46、それらの支持プレート44〜46によって、支軸15に沿う前後向きの姿勢で、扱胴16の周方向に一定間隔を隔てて並ぶように支持された丸パイプ鋼材などからなる6本の扱胴フレーム47、及び、各扱胴フレーム47に、扱胴フレーム47から扱胴16の外方に向けて突出する姿勢で、前後方向に所定間隔を隔てて並ぶように装備した複数の扱歯48、などによって籠状に構成されている。 The handling unit 42 includes a first support plate (corresponding to a support plate) 44 integrally provided at the front portion of the support shaft 15, and a second support plate (corresponding to a support member) 45 provided integrally with the front and rear intermediate portions of the support shaft 15. A third support plate (corresponding to a support plate) 46 provided integrally with the rear end portion of the support shaft 15, and a circumferential direction of the handling cylinder 16 in a posture in the front-rear direction along the support shaft 15 by the support plates 44 to 46. a round pipe steel six made of threshing drum frame 4 7, and, each thresher frame 47 which is supported so as to be arranged at regular intervals, the direction from the threshing drum frame 47 to the outside of the threshing drum 16 And a plurality of teeth 48 arranged so as to be arranged at a predetermined interval in the front-rear direction.

つまり、扱胴16は、その外方に向けて突出する複数の扱歯48が、扱き処理部42の周方向と前後方向とに所定間隔を隔てて並ぶように整列配備され、又、扱き処理部42の内部空間Sが扱室14に連通して、その内部空間Sへの脱穀処理物の入り込みを許容するようになっており、その結果、その回転作動時には、その周囲の脱穀処理物と内部空間Sに入り込んだ脱穀処理物とを攪拌しながら、それらの脱穀処理物に対して、扱胴フレーム47や扱歯48の打撃や梳き込みなどによる脱穀処理を施すことになる。   That is, the handling cylinder 16 is arranged and arranged so that a plurality of handling teeth 48 projecting outward from the handling cylinder 16 are arranged at a predetermined interval in the circumferential direction and the front-rear direction of the handling processing unit 42. The internal space S of the part 42 communicates with the handling chamber 14 so as to allow entry of the threshing product into the internal space S. As a result, during the rotation operation, the surrounding threshing product and While stirring the threshing processed material that has entered the internal space S, the threshing processing is performed on the threshing processed product by striking or punching the handling barrel frame 47 and the tooth handling 48.

又、扱き処理部42の内部空間Sが扱室14に連通することで、大量の刈取穀稈が脱穀処理物として扱室14に供給された場合であっても、扱き処理部42の内部空間Sを脱穀処理用の処理空間として有効利用することができ、これによって、処理空間での脱穀処理物の滞留や処理空間の飽和を回避することができる。その結果、脱穀処理物の滞留や処理
空間の飽和に起因した、十分な脱穀処理が行われないまま脱穀処理物が受網17から漏下する、あるいは、脱穀処理に要する負荷が増大して扱胴16に対する伝動系が損傷する、などの不都合の発生を未然に回避することができる。
Further, the internal space S of the handling processing unit 42 communicates with the handling chamber 14, so that even when a large amount of harvested cereal meal is supplied to the handling chamber 14 as a threshing processed product, the internal space of the handling processing unit 42. S can be effectively used as a processing space for threshing treatment, and thereby, retention of threshing products in the processing space and saturation of the processing space can be avoided. As a result, the threshing treatment product leaks from the receiving net 17 without sufficient threshing processing due to the retention of the threshing treatment product or the saturation of the processing space, or the load required for the threshing treatment increases and is handled. The occurrence of inconvenience such as damage to the transmission system with respect to the trunk 16 can be avoided in advance.

そして、扱胴16の回転作動時には、複数の扱歯48だけでなく、扱胴16の扱き処理部42を形成する6本の扱胴フレーム47までもが、脱穀処理物に作用する扱き処理部材として機能することから、脱穀性能や脱穀効率の向上を図ることができる。   When the handling cylinder 16 is rotated, not only the plurality of tooth handling teeth 48 but also the six handling cylinder frames 47 forming the handling processing section 42 of the handling cylinder 16 are handled handling members that act on the threshing product. Therefore, it is possible to improve threshing performance and threshing efficiency.

しかも、扱胴16の前部側での脱穀処理によって、多くの穀粒が単粒化して受網17から漏下することで、脱穀処理物量が減少する扱胴16の前後中間部においては、第2支持プレート45が、扱胴16の内部空間Sでの脱穀処理物の脱穀処理方向下手側への流動を阻止し、扱胴16の回転とともに脱穀処理物を扱胴16の周囲に導いて、脱穀処理物に対する扱歯48などの打撃や梳き込みなどによる脱穀や、単粒化穀粒の受網17からの漏下を促すようになることから、脱穀処理物に含まれる単粒化穀粒や未脱粒穀稈などが扱胴16の内部空間Sを素通りして、脱粒穀稈とともに脱穀処理方向下手側端部の排稈口18から排出されることに起因した3番ロスの発生を阻止することができる。   Moreover, by the threshing process on the front side of the handling cylinder 16, many grains become a single grain and leak from the receiving net 17, so that the amount of the threshing processed product decreases in the front and rear intermediate parts, The second support plate 45 prevents the threshing product in the inner space S of the handling cylinder 16 from flowing to the lower side in the threshing processing direction, and guides the threshing treatment product around the handling cylinder 16 as the handling cylinder 16 rotates. , Threshing of the threshing product by hitting or swallowing the tooth-handling 48, etc., or leakage of the single cereal grain from the receiving net 17 is promoted, so that the single cereal grain contained in the threshing product The occurrence of No. 3 loss caused by grains and unthreshed cereals passing through the inner space S of the barrel 16 and being discharged together with the shed cereals from the discharge port 18 at the lower end of the threshing processing direction. Can be blocked.

更に、扱胴16の回転作動時には、掻込部41の作用で掻き込み搬送される刈取穀稈とともに、螺旋歯43の回転に伴って供給口25から吸引された外気が、扱胴16の周囲や扱き処理部42の内部空間Sにスムーズに流動するようになり、これによって、脱穀処理によって発生した稈屑などの供給口25からフィーダ13への流出を防止することができるとともに、脱穀処理物の脱穀処理方向下手側への搬送をより速やかに行える。   Further, when the handling cylinder 16 is rotated, the outside air sucked from the supply port 25 along with the rotation of the helical teeth 43 together with the harvested cereal that is scraped and transported by the action of the scraping portion 41 is surrounded by the circumference of the handling cylinder 16. And flow smoothly into the internal space S of the handling unit 42, thereby preventing the swarf generated from the threshing process from flowing out from the supply port 25 to the feeder 13 and the threshing processed product. The threshing process in the lower direction can be carried more quickly.

その上、供給口25から吸引される外気は、供給口25に接続されたフィーダ13の内部を通るものであり、そのフィーダ13は、切断機構11やオーガ12などを装備した刈取搬送装置4の刈取回収部に形成した回収穀稈搬出用の搬出口(図示せず)と供給口25とを連通するものであることから、扱胴16の回転作動時には、螺旋歯43の回転による吸引作用で、刈取回収部での刈取処理や回収処理で発生した稈屑などの塵埃も、外気とともに、刈取回収部の搬出口からフィーダ13の内部空間及び供給口25を介して、扱胴16の周囲や扱き処理部42の内部空間Sに流入することになる。その結果、刈取回収部での稈屑などの付着堆積や舞い上がりを抑制することができ、その付着堆積に起因した刈取穀稈の搬送不良や、その舞い上がりに起因した作業環境及び視界性の低下などを抑制することができる。   In addition, the outside air sucked from the supply port 25 passes through the inside of the feeder 13 connected to the supply port 25, and the feeder 13 includes the cutting mechanism 11 and the auger 12. Since the supply port 25 communicates with a carry-out port (not shown) for carrying out the recovered cereals formed in the cutting and collecting part, the suction action by the rotation of the helical teeth 43 is caused when the handling cylinder 16 is rotated. In addition, dust such as sawdust generated in the cutting and collecting process in the cutting and collecting unit, along with the outside air, from the carry-out port of the cutting and collecting unit through the internal space of the feeder 13 and the supply port 25, It will flow into the internal space S of the handling processor 42. As a result, it is possible to suppress the accumulation and soaring of sawdust etc. in the harvesting and collecting part, the poor transportation of the harvested cereals due to the deposition and the deterioration of the working environment and visibility due to the soaring, etc. Can be suppressed.

各支持プレート44〜46は、支軸15を中心とする円形で、その外周側における支軸15からの等距離の位置に扱胴フレーム47がボルト連結されている。   Each of the support plates 44 to 46 has a circular shape centered on the support shaft 15, and a barrel frame 47 is bolted to the outer peripheral side of the support plate 44 at an equal distance from the support shaft 15.

つまり、各支持プレート44〜46の外周側に、その周方向に一定間隔を隔てて並ぶ状態に6本の扱胴フレーム47を配備して、扱胴16の胴径を大きくするようにしているのであり、これによって、扱胴16に対する刈取穀稈の巻き付きを防止することができる。   That is, on the outer peripheral side of each support plate 44 to 46, six handling cylinder frames 47 are arranged in a state of being arranged at regular intervals in the circumferential direction so that the cylinder diameter of the handling cylinder 16 is increased. Thus, it is possible to prevent the harvested cereal from being wrapped around the handling cylinder 16.

各扱胴フレーム47は、その前後方向を扱胴16の前後方向と一致させた通常姿勢と、その前後方向を扱胴16の前後方向と逆にした反転姿勢とに向き変更可能に、かつ、隣り合う扱胴フレーム47との前後向きが逆になるように、各支持プレート44〜46にボルト連結されている。   Each barrel frame 47 can be reoriented to a normal posture in which the front-rear direction coincides with the front-rear direction of the barrel 16 and an inverted posture in which the front-rear direction is opposite to the front-rear direction of the handle barrel 16, and Bolts are connected to the support plates 44 to 46 so that the front and rear directions with respect to the adjacent handling cylinder frames 47 are reversed.

各扱胴フレーム47には、扱歯48の取り付けを可能にする複数の取付孔47A,47Bが、その前後方向に一定ピッチPで並ぶ状態に、かつ、扱胴フレーム47の前端から最前の取付孔47Aの中心までの距離L1と、扱胴フレーム47の後端から最後の取付孔47Aの中心までの距離L2とを半ピッチ(=1/2P)だけ異ならせた状態で穿設されて
いる。
Each handling frame 47 has a plurality of mounting holes 47A and 47B that allow the handling teeth 48 to be mounted in a state where the mounting holes 47A and 47B are arranged at a constant pitch P in the front-rear direction, and from the front end of the handling frame 47 The distance L1 to the center of the hole 47A and the distance L2 from the rear end of the handling frame 47 to the center of the last mounting hole 47A are made different from each other by a half pitch (= 1 / 2P). .

そして、各扱胴フレーム47は、隣り合うものとの前後向きが逆になる状態で各支持プレート44〜46に連結支持されており、これによって、6本の扱胴フレーム47として同じ構成のものを採用しながら、それらの各扱胴フレーム47に装備される扱歯48を、隣り合う扱胴フレーム47の扱歯48と前後方向に半ピッチ分だけ位置ずれさせた状態で位置させることができ、結果、隣り合う扱歯48の間隔を小さくすることなく、脱穀処理物に対する扱歯48の打撃間隔を小さくすることができる。   Each handling cylinder frame 47 is connected to and supported by each of the support plates 44 to 46 in a state where the front and rear directions with respect to adjacent ones are reversed, and thereby, the six handling cylinder frames 47 have the same configuration. Can be positioned in a state of being shifted by a half pitch in the front-rear direction from the teeth 48 of the adjacent cylinder frames 47. As a result, the striking interval of the teeth 48 against the threshing processed product can be reduced without reducing the interval between the adjacent teeth 48.

つまり、各扱胴フレーム47を同じ構成とすることによるコストの削減を図りながら、又、隣り合う扱歯48の間隔を小さくするほど招き易くなる、扱歯48に対する脱穀処理物中の穀稈の絡み付きに起因した脱穀処理物の詰まりを効果的に防止しながら、脱穀処理物に対する扱歯48の打撃回数を多くすることによる脱穀性能の向上を図ることができる。   That is, while reducing the cost by making each handling cylinder frame 47 the same structure, the smaller the gap between adjacent handling teeth 48, the easier it is to invite the cereals in the threshing processed product with respect to the handling teeth 48. While effectively preventing clogging of the threshing product resulting from the entanglement, it is possible to improve the threshing performance by increasing the number of times the tooth handling 48 is struck against the threshing product.

又、各扱胴フレーム47を、通常姿勢と反転姿勢とに向き変更可能に装備したことで、脱穀処理物量が多いことで比較的に摩耗し易い脱穀処理方向上手側に位置する扱歯48の摩耗が長期の使用によって著しくなった場合には、各扱胴フレーム47の向きを変更することで、各扱胴フレーム47に備えた複数の扱歯48を、比較的に摩耗し易い脱穀処理方向上手側の扱歯48と摩耗し難い脱穀処理方向下手側の扱歯48とを交換した状態に、一挙に位置変更することができ、これによって、摩耗の少ない脱穀処理方向下手側の扱歯48を、脱穀処理物量の多い脱穀処理方向上手側の扱歯48として有効利用することができる。   Further, since each handling cylinder frame 47 is equipped so that the orientation can be changed between the normal posture and the inverted posture, the handling teeth 48 positioned on the upper side in the threshing processing direction, which is relatively easy to wear due to a large amount of the threshing processed material. When wear becomes significant due to long-term use, the direction of each barrel frame 47 is changed, so that the plurality of teeth 48 provided on each barrel frame 47 are relatively easily worn away. The position of the upper teeth 48 and the lower teeth in the threshing direction that are difficult to wear can be changed to a state where they are exchanged at a stroke, whereby the teeth 48 on the lower side in the threshing direction with less wear. Can be effectively used as the tooth handling 48 on the upper side in the threshing process direction with a large amount of processed threshing.

複数の取付孔47A,47Bのうち、各扱胴フレーム47の前後両端部に位置する4つ(前後2つずつ)の取付孔47Aは、中間部に位置する取付孔47Bよりも小径に形成されている。   Of the plurality of mounting holes 47A and 47B, four (two front and rear) mounting holes 47A located at both front and rear ends of each handling cylinder frame 47 are formed to have a smaller diameter than the mounting holes 47B located at the intermediate portion. ing.

各扱歯48のうち、小径の取付孔47Aを利用して取り付けられる扱歯48Aは、取付孔47Aに挿通される小径部48aを備えた段付きの丸棒鋼材で構成され、その中心が、支軸15の中心と扱胴フレーム47の中心とを通る線上に位置するように、扱胴フレーム47に着脱可能にナット止めされている。   Of each tooth 48, a tooth 48A that is attached using a small-diameter attachment hole 47A is composed of a stepped round bar steel material having a small-diameter portion 48a that is inserted through the attachment hole 47A. A nut is detachably attached to the barrel frame 47 so as to be positioned on a line passing through the center of the support shaft 15 and the center of the barrel frame 47.

中間部の取付孔47Bを利用して取り付けられる扱歯48Bは、段無しの丸棒鋼材で構成され、その中心が、支軸15の中心と扱胴フレーム47の中心とを通る線上に位置するように、扱胴フレーム47に着脱不能に溶接されている。   The tooth 48B attached using the intermediate attachment hole 47B is made of a stepless round bar steel material, and the center thereof is located on a line passing through the center of the support shaft 15 and the center of the handling cylinder frame 47. As shown in FIG.

つまり、扱き処理部42の前後両端部に位置する各扱歯48Aが着脱可能であることから、それらの扱歯48Aが、扱胴フレーム47の向き変更を含めた長期にわたる使用で著しく摩耗した場合には、新しい扱歯48Aに簡単に交換することができる。   That is, since each tooth 48A located at both front and rear ends of the handling section 42 is detachable, the teeth 48A are significantly worn by long-term use including changing the direction of the handling frame 47. Can be easily replaced with a new tooth-handling 48A.

又、脱粒穀稈量が多くなる脱穀処理方向下手側においては、図9に示すように、扱胴16の後端部に位置する扱歯48Aを間引いた状態で配備すれば、扱胴後端部での扱歯48Aの間隔が大きくなって、扱胴後端部での扱歯48Aに対する引っ掛かりに起因した脱粒穀稈の滞留を効果的に抑制することができ、結果、脱粒穀稈の排出口23からの放出を促進させることができる。   Further, on the lower side of the threshing treatment direction in which the amount of threshing cereal increases, as shown in FIG. 9, if deployed in a state in which the teeth 48 </ b> A located at the rear end of the handling cylinder 16 are thinned, the handling cylinder rear end The interval between the tooth-handling 48A at the portion increases, and the retention of the threshing cereal caused by the catch on the tooth-handling 48A at the rear end of the barrel can be effectively suppressed. Release from the outlet 23 can be facilitated.

図3〜5、図10及び図11に示すように、天板24は、扱歯先端の回転軌跡Kに略沿って湾曲する湾曲部24A、その湾曲部24Aの前後両端に位置する半円状の縦壁部24B、及び、湾曲部24Aの左右に位置する一直線状の側縁部24C、などを備え、扱胴1
6の上部側を上方から覆う閉状態と、扱胴16の上部側を開放する開状態とに、左側の側縁部24Cに備えた複数のヒンジ24Dを支点にした開閉揺動操作が可能となるように構成されている。右側の側縁部24Cには、天板24を閉状態で固定する複数のボルト24Eが備えられている。
As shown in FIGS. 3 to 5, 10, and 11, the top plate 24 includes a curved portion 24 </ b> A that curves substantially along the rotation locus K of the tooth handling tip, and a semicircular shape that is located at both front and rear ends of the curved portion 24 </ b> A. The vertical wall portion 24B and the straight side edge portions 24C positioned on the left and right of the curved portion 24A, etc.
6 can be opened and closed using a plurality of hinges 24D provided on the left side edge 24C as a fulcrum in a closed state in which the upper side of 6 is closed from above and an open state in which the upper side of the handling cylinder 16 is opened. It is comprised so that it may become. The right side edge 24C is provided with a plurality of bolts 24E for fixing the top plate 24 in a closed state.

湾曲部24Aの内面には、扱胴16の回転作動に伴って、扱室14の上部に搬送された脱穀処理物を脱穀処理方向下手側に向けて案内する複数の送塵弁49が、前後方向に所定間隔を隔てて並ぶように固定装備されている。複数の送塵弁49のうち、最前の送塵弁49Aは、前側の縦壁部24Bから左側の側縁部24Cにわたる円弧状に形成され、他の送塵弁49Bは、左右の側縁部24Cにわたる円弧状に形成されている。   On the inner surface of the curved portion 24A, there are a plurality of dust feed valves 49 that guide the threshing processed material conveyed to the upper part of the handling chamber 14 toward the lower side in the threshing processing direction in accordance with the rotation operation of the handling cylinder 16. It is fixedly equipped so as to line up in the direction at a predetermined interval. Among the plurality of dust delivery valves 49, the foremost dust delivery valve 49A is formed in an arc shape extending from the front vertical wall portion 24B to the left side edge portion 24C, and the other dust delivery valves 49B are left and right side edge portions. It is formed in an arc shape extending over 24C.

つまり、天板24に湾曲部24Aを備えたことで、扱胴16の回転に伴って複数の扱歯48などで扱室14の上部に掻き上げ搬送された脱穀処理物を、天板24に激しく衝突させることなく、天板24や送塵弁49に沿わせながら、脱穀処理方向下手側下方の受網17に向けて滑らかに案内することができ、又、各送塵弁49を、左側の側縁部24C又は左右の側縁部24Cにわたる長尺の円弧状に形成したことで、扱胴16の回転に伴って扱室14の上部に搬送された脱穀処理物に対する各送塵弁49Aの案内作用を効果的に向上させることができ、これによって、各扱歯48を、脱穀処理物に対する搬送作用を備える形状ではなく、脱穀処理物に対する打撃や梳き込みを好適に行える脱穀専用の形状に形成しながらも、脱穀処理物を脱穀処理方向下手側に向けて良好に搬送案内することができ、結果、脱穀処理物に対する脱穀性能及び搬送性能の向上を図ることができる。   That is, by providing the top plate 24 with the curved portion 24 </ b> A, the threshing processed material that has been scraped and conveyed to the upper portion of the handling chamber 14 by the plurality of tooth handling 48 and the like as the handling cylinder 16 rotates is applied to the top plate 24. Without violently colliding, it can be smoothly guided toward the receiving net 17 on the lower side of the threshing process direction along the top plate 24 and the dust feed valve 49, and each dust feed valve 49 can be moved to the left side. 49A of each threshing processed material conveyed to the upper part of the handling chamber 14 with rotation of the handling cylinder 16 by having formed in the long circular arc shape over the side edge part 24C or the left and right side edge parts 24C. The guiding action of the threshing can be effectively improved, so that each tooth-handling 48 is not a shape having a conveying action for the threshing processed product, but a shape dedicated to threshing that can suitably hit or plow the threshing processed product. Threshing processed threshing products while forming Towards sense direction downstream side can be favorably transported guide, a result, it is possible to improve the threshing performance and transport performance for threshing treated.

左右の側縁部24Cには、湾曲部24Aの内面と受網17の内縁とに連なる案内面を有するように形成された鋼板製の継目部材50が着脱可能にボルト連結されている。つまり、受網17と天板24との継ぎ目に位置することにより脱穀処理物との接触が激しくなって摩耗し易い継目部材50を着脱可能に構成したことで、その継目部材50を天板24に一体形成した場合のように、継目部材50の摩耗によって天板24の全体を交換する、といった手間や経済的な不利を招くことなく、継目部材50の摩耗に対する処置を適切に行える。   A steel plate seam member 50 formed so as to have a guide surface connected to the inner surface of the curved portion 24A and the inner edge of the receiving net 17 is detachably bolted to the left and right side edge portions 24C. That is, the seam member 50 that is easily worn due to intense contact with the threshing product by being positioned at the seam between the receiving net 17 and the top plate 24 is configured to be detachable. As in the case of being integrally formed with the joint member 50, it is possible to appropriately treat the wear of the joint member 50 without incurring the trouble and economical disadvantage of replacing the entire top plate 24 by the wear of the joint member 50.

ちなみに、各扱歯48の先端と各送塵弁49の下縁との間には、送塵弁49による脱穀処理物の案内を良好にするために小さいクリアランスが設定されている。又、各扱歯48の先端と受網17の内縁との間には、単粒化穀粒の受網17からの漏下を促進させるために、各扱歯48の先端と各送塵弁49の下縁との間に設定したクリアランスよりも大きいクリアランスが設定されている。   Incidentally, a small clearance is set between the tip of each tooth-handling 48 and the lower edge of each dust feed valve 49 in order to improve the guidance of the threshing processed product by the dust feed valve 49. In addition, between the tip of each tooth-handling 48 and the inner edge of the receiving net 17, the tip of each tooth-handling 48 and each dust feed valve are used in order to promote the leakage of single grains from the receiving net 17. The clearance larger than the clearance set between the lower edge of 49 is set.

図3、図4、図6、図12及び図13に示すように、脱穀装置5の前壁26と受網17との間には、供給口25から供給された刈取穀稈を受け止めて、扱胴16の掻込部41による刈取穀稈の掻き込み搬送を補助する搬送補助部材51が配備されている。搬送補助部材51は、扱胴16の下部側を下方から覆う正面視略U字状にボルト連結される2つのプレート51Aによって構成され、脱穀装置5の前壁26や脱穀装置5の上部に前後向きに配備した左右一対の支持フレーム52に着脱可能にボルト連結されている。つまり、刈取穀稈との接触が激しく摩耗し易い搬送補助部材51を着脱可能に構成したことで、その搬送補助部材51を受網17又は左右の支持フレーム52に一体形成した場合のように、搬送補助部材51の摩耗によって搬送補助部材51とともに受網17又は左右の支持フレーム52を交換する、といった手間や経済的な不利を招くことなく、搬送補助部材51の摩耗に対する処置を適切に行える。   As shown in FIGS. 3, 4, 6, 12, and 13, between the front wall 26 of the threshing device 5 and the receiving net 17, the harvested cereal meal supplied from the supply port 25 is received, A conveyance assisting member 51 is provided to assist the raking and conveying of the harvested cereal meal by the raking part 41 of the handling cylinder 16. The conveyance auxiliary member 51 is configured by two plates 51 </ b> A that are bolted in a substantially U shape in front view to cover the lower side of the handling cylinder 16 from below, and front and rear of the front wall 26 of the threshing device 5 and the upper portion of the threshing device 5. Bolts are detachably connected to a pair of left and right support frames 52 arranged in the direction. That is, since the conveyance auxiliary member 51 that is easily contacted with the harvested cereal grind and easily wears is configured to be detachable, the conveyance auxiliary member 51 is integrally formed with the receiving net 17 or the left and right support frames 52. The treatment for the abrasion of the conveyance auxiliary member 51 can be appropriately performed without incurring the trouble and the economical disadvantage of replacing the receiving mesh 17 or the left and right support frames 52 together with the conveyance auxiliary member 51 due to the abrasion of the conveyance auxiliary member 51.

図3、図5、図6及び図14に示すように、受網17は、同一形状に形成された4つの受網部材53によって構成され、左右の支持フレーム52に着脱可能にボルト連結されて
いる。各受網部材53は、基枠53Aに、帯状鋼板からなる複数の縦桟53Bを、扱胴16の周方向に一定間隔を隔てる状態で前後向きに整列配備し、円弧状に湾曲形成した帯状鋼板からなる複数の第1横桟53Cを、扱胴16の支軸方向となる前後方向に所定間隔を隔てる状態で左右向きに整列配備し、円弧状に湾曲形成したピアノ線材からなる複数の第2横桟53Dを、隣接する第1横桟53Cの間において、前後方向に一定間隔を隔てる状態で左右向きに整列配備して、その網目が、扱胴16の周方向に沿う方向の長さが前後方向に沿う方向の長さよりも長くなる横長の矩形に形成されている。
As shown in FIGS. 3, 5, 6, and 14, the receiving net 17 is configured by four receiving net members 53 formed in the same shape, and is detachably bolted to the left and right support frames 52. Yes. Each receiving net member 53 has a base frame 53A in which a plurality of vertical bars 53B made of strip-shaped steel plates are arranged in the front-rear direction in a state of being spaced apart from each other in the circumferential direction of the handling cylinder 16, and are formed in a curved shape in a circular arc shape. A plurality of first horizontal bars 53C made of steel plates are arranged in the left-right direction with a predetermined interval in the front-rear direction as the support shaft direction of the handling cylinder 16, and a plurality of first wires made of piano wire curved in an arc shape are arranged. The two horizontal rails 53D are arranged in the left-right direction with a certain interval in the front-rear direction between the adjacent first horizontal rails 53C, and the mesh has a length in the direction along the circumferential direction of the handling cylinder 16. Is formed in a horizontally long rectangle that is longer than the length in the direction along the front-rear direction.

つまり、受網17を、その網目が扱胴16の回転方向に長い横長の矩形となるように構成したことで、刈取穀稈に対する脱穀処理で得られた単粒化穀粒などが受網17から漏下し易くなり、もって、単粒化穀粒の受網17からの漏下が抑制されることに起因した脱ぷ粒の発生を回避することができる。又、各受網部材53を同一形状に形成したことで、受網17の生産性や組み付け性を向上させることができる。   That is, the receiving net 17 is configured so that the mesh is a horizontally long rectangle in the rotation direction of the handling cylinder 16, so that the single grain obtained from the threshing process on the harvested corn straw is received by the receiving net 17. Therefore, it is possible to avoid the occurrence of degranulation due to the suppression of leakage of the single-grained grains from the receiving net 17. In addition, since the receiving net members 53 are formed in the same shape, the productivity and assembly of the receiving net 17 can be improved.

図3及び図15に示すように、粗選別用のチャフシーブ31は単一の選別プレート54で構成され、その選別方向下手側ほど上方に位置する後上がりの傾斜姿勢でシーブケース29にボルト連結されている。   As shown in FIGS. 3 and 15, the rough sorting chaff sheave 31 is composed of a single sorting plate 54, and is bolted to the sheave case 29 in a back-up and inclined posture located on the lower side in the sorting direction. ing.

選別プレート54の前部側(選別プレート54全体の1/3の領域)には、平面視矩形状に形成された複数の漏下孔54Aが、前列の漏下孔54Aの間に後列の漏下孔54Aが位置する千鳥状に整列形成されている。選別プレート54の後部側(選別プレート54全体の2/3の領域)には、選別片54a,54bを有する平面視矩形状に形成された複数の漏下孔54B,54Cが、前列の漏下孔54B,54Cの間に後列の漏下孔54B,54Cが位置する千鳥状に整列形成されている。   On the front side of the sorting plate 54 (1/3 of the entire sorting plate 54), a plurality of leakage holes 54A formed in a rectangular shape in plan view are arranged between the leakage holes 54A in the front row. It is formed in a zigzag pattern in which the lower holes 54A are located. On the rear side of the sorting plate 54 (2/3 of the sorting plate 54 as a whole), a plurality of leakage holes 54B and 54C formed in a rectangular shape in plan view having sorting pieces 54a and 54b are leaked in the front row. Between the holes 54B and 54C, the rear row leakage holes 54B and 54C are arranged in a staggered manner.

各選別片54a,54bのうち、選別プレート54の左右中央側に位置する選別片54aは、その選別方向下手側ほど幅狭で上方に位置する鱗状に打ち出し形成されている。選別プレート54の左右両端に位置する選別片54bは、左右中央側の選別片54aよりも短尺の矩形状で、その選別方向下手側ほど上方に位置するように打ち出し形成されている。   Among the sorting pieces 54a and 54b, the sorting piece 54a located on the left and right center side of the sorting plate 54 is formed so as to be narrower and closer to the upper side in the sorting direction. The sorting pieces 54b located at the left and right ends of the sorting plate 54 are rectangular in shape shorter than the sorting pieces 54a on the left and right center sides, and are formed so as to be positioned higher on the lower side in the sorting direction.

つまり、粗選別用のチャフシーブ31を単一の選別プレート54で構成することから、例えば、チャフシーブ31を、帯鋼板からなる多数のチャフリップを前後方向に一定間隔を隔てるように整列配備して構成する場合などに比較して、構成の簡素化やコストの削減を図ることができる。   That is, since the chaff sheave 31 for rough sorting is configured by a single sorting plate 54, for example, the chaff sheave 31 is configured by arranging a large number of chaff flips made of strip steel plates so as to be spaced apart in the front-rear direction. Compared with the case where it does, the simplification of a structure and the reduction of cost can be aimed at.

そして、単粒化穀粒の含有率が高い選別処理物が供給されるチャフシーブ31の前部側に選別片54a,54bを備えていない漏下孔54Aを形成したことで、チャフシーブ31の前部側から下方のグレンパン33やグレンシーブ34に漏下する単粒化穀粒が多くなり、結果、単粒化穀粒の回収率を高めることができる。   And the front part of the chaff sheave 31 is formed by forming the leakage hole 54A not provided with the sorting pieces 54a and 54b on the front part side of the chaff sheave 31 to which the processed product with a high content of single grains is supplied. The number of single grains that leak from the side to the lower grain pan 33 and the grain sieve 34 increases, and as a result, the recovery rate of the single grains can be increased.

又、チャフシーブ31の後部側に、選別片54a,54bを備えた漏下孔54B,54Cを千鳥状で前後左右に整列形成したことで、篩い選別処理においては、チャフシーブ31上の選別処理物が左右方向に片寄りなく均等に分配されることになり、よって、単粒化穀粒の各漏下孔54B,54Cからの漏下を促進させることができる。しかも、チャフシーブ31を後上がりの傾斜姿勢で装備したことで、チャフシーブ31を水平姿勢で装備する場合に比較して、篩い選別処理において、チャフシーブ31が選別処理物を選別処理方向上手側の上方に向けて押し出す力が大きくなり、これによって、選別処理物の選別方向下手側への搬送が抑制されるとともに、選別処理物の上下動が激しくなって、選別処理物の比重差選別をより効果的に行えることから、比重の大きい穀粒の各漏下孔54B,54
Cからの漏下が促進され、単粒化穀粒が排出口23から車外に放出される3番ロスの発生を効果的に抑制することができ、結果、穀粒回収効率の向上を図ることができる。
Further, the leakage holes 54B and 54C provided with the sorting pieces 54a and 54b are formed in a staggered manner in the front, rear, left and right sides on the rear side of the chaff sheave 31, so that the sorting processed product on the chaff sheave 31 is not separated in the sieve sorting process. It will be evenly distributed in the left-right direction, so that the leakage of single grains from the respective leakage holes 54B, 54C can be promoted. In addition, since the chaff sheave 31 is installed in a rearwardly inclined posture, the chaff sheave 31 moves the sorting processing product to the upper side in the sorting processing direction in the sieve sorting process as compared with the case where the chaff sheave 31 is installed in the horizontal posture. This increases the force that pushes out the product, and this suppresses the transport of the sorted product to the lower side of the sorting direction, and the vertical movement of the sorted product becomes intense, making the specific gravity difference sorting of the sorted product more effective. Because of this, each leakage hole 54B, 54 of the grain of large specific gravity
Leakage from C is promoted, and generation of No. 3 loss in which single grains are released from the outlet 23 to the outside of the vehicle can be effectively suppressed, and as a result, improvement in grain recovery efficiency is achieved. Can do.

更に、チャフシーブ31における左右両端の選別片54bを、左右中央側の選別片54aよりも短尺に形成したことで、チャフシーブ31における選別処理物が堆積し易い左右両端部の漏下孔54Cからの穀粒などの漏下を促進させることができ、結果、チャフシーブ31の左右両端部での選別処理物の堆積に起因した選別効率の低下を回避することができる。   Further, the sorting pieces 54b at the left and right ends of the chaff sheave 31 are formed to be shorter than the sorting pieces 54a at the center of the left and right sides, so that the grains from the leakage holes 54C at the left and right ends where the sorting processed product in the chaff sheave 31 is easy to accumulate. Leakage of grains and the like can be promoted, and as a result, it is possible to avoid a reduction in sorting efficiency due to the accumulation of sorting processed products at the left and right ends of the chaff sheave 31.

ちなみに、チャフシーブ31に形成される選別片54a,54bを備えていない漏下孔54Aと、選別片54a,54bを備えた漏下孔54B,54Cとの割合は、選別する穀粒の種類などに応じて種々の変更が可能である。   Incidentally, the ratio of the leakage holes 54A that are not provided with the sorting pieces 54a and 54b formed in the chaff sheave 31 and the leakage holes 54B and 54C that are provided with the sorting pieces 54a and 54b depends on the types of grains to be selected. Various changes can be made accordingly.

又、選別プレート54の前部側に、短尺で矩形状の選別片54bを有するように平面視矩形状に形成された複数の漏下孔54Cを、前列の漏下孔54Cの間に後列の漏下孔54Cが位置する千鳥状に整列形成するようにしてもよい。   In addition, a plurality of leakage holes 54C formed in a rectangular shape in plan view so as to have a short rectangular selection piece 54b on the front side of the selection plate 54 are arranged between the front row leakage holes 54C. You may make it form in a zigzag form where the leakage hole 54C is located.

図3に示すように、唐箕20からの選別風のうち、上段の風路R1を通る選別風は、シーブケース29に形成した風路R4を通って、扱胴16の第2支持プレート45に向けて流動するようになっている。これによって、第2支持プレート45によって脱穀処理方向下手側への流動が阻止される脱穀処理物を、扱胴16の周囲に向けて風力搬送することができ、結果、脱穀処理物が第2支持プレート45の直前箇所で堆積して、脱穀処理に支障を来す虞を未然に回避することができる。   As shown in FIG. 3, of the selected air from the tang 20, the selected air passing through the upper air passage R <b> 1 passes through the air passage R <b> 4 formed in the sheave case 29 to the second support plate 45 of the handling cylinder 16. It comes to flow toward. Thereby, the threshing processed product that is prevented from flowing toward the lower side in the threshing processing direction by the second support plate 45 can be wind-winded toward the periphery of the handling cylinder 16, and as a result, the threshing processed product is supported in the second support. It is possible to avoid the possibility of depositing immediately before the plate 45 and hindering the threshing process.

図3及び図6に示すように、扱胴16は、その後端に位置する扱歯48Aが、受網17の後端よりも後方に位置して排稈口18に臨むようになっている。つまり、扱胴16の後端においては、受網17が存在しないことで、その周囲に比較的大きい空間が形成された状態となっており、これによって、扱胴後端の扱歯48Aに脱粒穀稈が絡み付いていたとしても、その脱粒穀稈は、扱胴16の回転に伴う遠心力で、その扱歯48Aの先端から抜け出るようになり、結果、扱胴16の後端での扱歯48Aに対する引っ掛かりに起因した脱粒穀稈の滞留を効果的に抑制することができ、脱粒穀稈の排稈口18からの放出を促進させることができる。   As shown in FIGS. 3 and 6, the handle 16 is configured such that the handle teeth 48 </ b> A located at the rear end thereof are positioned rearward of the rear end of the receiving net 17 and face the discharge port 18. That is, since the receiving net 17 is not present at the rear end of the handling cylinder 16, a relatively large space is formed around the receiving net 17. Even if the cereals are entangled, the threshing cereals come out of the tips of the teeth 48A due to the centrifugal force associated with the rotation of the case 16, and as a result, the teeth are treated at the rear end of the handle 16. It is possible to effectively suppress the retention of the shed cereal meal due to the catch on 48A, and it is possible to promote the release of the shed cereal meal from the discharge port 18.

〔別実施形態〕     [Another embodiment]

〔1〕扱胴16としては、掻込部41を備えないものであってもよく、又、掻込部41に、螺旋歯43の代わりに整梳歯又は扱歯48を備えるものであってもよい。 [1] The handling cylinder 16 may not be provided with the scraping portion 41, and the scraping portion 41 is provided with an orthodontic tooth or a handling tooth 48 instead of the helical tooth 43. Also good.

〔2〕扱胴16としては、各扱胴フレーム47に、丸棒鋼材、角棒鋼材、角パイプ鋼材、アングル材、又はチャンネル材などを採用したものであってもよい。 The [2] thresher 16, each thresher frame 4 7, round bar steel material, corner bars material, square pipe steel, angle members, or channel member or the like may be those adopted.

〔3〕扱胴16において、扱胴フレーム47の装備数量は種々の変更が可能であり、例えば、8本の扱胴フレーム47を装備するようにしてもよい。 [3] In thresher 16, equipped quantity of the threshing drum frames 4-7 and various modifications may be made, for example, it may be equipped with threshing drum frame 47 of eight.

〔4〕扱胴16において、複数の扱胴フレーム47を各支持プレート44〜46に向き変更不能に固着するようにしてもよい。 [4] In thresher 16, a plurality of threshing drum frames 4 7 may be fixed to the orientation unchangeable in each support plate 44 to 46.

〔5〕扱胴フレーム47に装備する全ての扱歯48を、扱胴フレーム47に溶接固定するようにしてもよく、又、扱胴フレーム47に着脱可能にボルト連結するようにしてもよい。 [5] All the teeth 48 mounted on the barrel frame 47 may be fixed by welding to the barrel frame 47, or may be detachably connected to the barrel frame 47 with bolts.

〔6〕扱胴フレーム47に装備する全ての扱歯48又は一部の扱歯48を、扱胴16の回転に伴って、脱穀処理物を脱穀処理方向下手側に向けて案内する案内面を有する羽根状に形成するようにしてもよく、又、その先端部が、扱胴16の回転に伴って、脱穀処理物を脱穀処理方向下手側に向けて案内する案内部として機能するようにL字状に屈曲形成してもよい。 [6] A guide surface that guides all the teeth 48 or a part of the teeth 48 mounted on the barrel frame 47 toward the lower side in the threshing process direction as the barrel 16 rotates. L may be formed so as to have a feather shape, and the front end portion functions as a guide unit that guides the threshing product toward the lower side in the threshing processing direction as the handling cylinder 16 rotates. It may be bent in a letter shape.

〔7〕扱歯48として、角棒鋼材や丸パイプ材などを採用するようにしてもよく、又、U字状やV字状に屈曲形成されたものを採用するようにしてもよい。 [7] As the tooth handling 48, a square bar steel material, a round pipe material, or the like may be employed, or a U-shaped or V-shaped bent shape may be employed.

〔8〕扱歯48の配置間隔としては種々の変更が可能であり、例えば、扱胴フレーム47の装備本数を3の倍数とする場合には、各扱歯48が、隣の扱胴フレーム47に装備された扱歯48と前後方向で1/3ピッチ分ずれた状態で位置するように、又、扱胴フレーム47の装備本数を4の倍数とする場合には、各扱歯48が、隣の扱胴フレーム47に装備された扱歯48と前後方向で1/4ピッチ分ずれた状態で位置するように配置設定してもよい。又、例えば、後部側での扱歯48の前後間隔が前部側での扱歯48の前後間隔よりも大きくなるように、前部側と後部側とで扱歯48の配置間隔を異ならせるようにしてもよい。 [8] The arrangement interval of扱歯48 can be variously modified, for example, in the case of a multiple of 3 equipped number of the threshing drum frame 4 7, each扱歯48, next to the threshing drum frame 4 7 so as to be located at 1/3 being shifted pitch in instrumented扱歯48 and longitudinal direction, and, in the case of a multiple of 4 equipped number of the threshing drum frame 4 7, each扱歯48 may be arranged set to be positioned in a state where the扱歯48 that is provided on the threshing drum frame 4 7 next shifted 1/4 pitch in the longitudinal direction. Also, for example, the arrangement interval of the tooth handling 48 is made different between the front side and the rear side so that the front-rear spacing of the tooth handling 48 on the rear side is larger than the front-rear spacing of the tooth handling 48 on the front side. You may do it.

〔9〕天板24に装備する全ての送塵弁49又は一部の送塵弁49を、天板24の左右いずれか一方の側縁部24C、又は、左右双方の側縁部24Cにわたらない短い長さに形成するようにしてもよい。 [9] When all the dust feed valves 49 or some of the dust feed valves 49 provided on the top plate 24 are moved to the left or right side edge 24C of the top plate 24 or both the left and right side edge portions 24C. You may make it form in the short length which is not.

〔10〕送塵弁49を、扱室14内の脱穀処理物量に応じた開度調節が可能な可動式に構成して、脱穀性能や脱穀効率の向上を更に図れるようにしてもよい。 [10] The dust feed valve 49 may be configured to be movable so that the degree of opening can be adjusted according to the amount of processed threshing in the handling chamber 14 to further improve the threshing performance and threshing efficiency.

〔11〕天板24としては、その湾曲部24Aが扱歯48の先端が描く回転軌跡Kに沿って湾曲するように形成されたものであってもよい。又、湾曲部24Aの代わりに、扱胴16の上部側を上方から覆うように屈曲形成された屈曲部を有するように構成されたものであってもよい。 [11] The top plate 24 may be formed such that the bending portion 24A is curved along the rotation locus K drawn by the tip of the tooth-handling 48. Further, instead of the bending portion 24A, it may be configured to have a bent portion that is bent so as to cover the upper side of the handling cylinder 16 from above.

5 脱穀装置
14 扱室
15 支軸
16 扱胴
42 扱き処理部
44 第1支持プレート(支持プレート)
45 第2支持プレート(支持部材)
46 第3支持プレート(支持プレート)
47 扱胴フレーム
47A,47B 取付孔
48 扱
S 内部空間
5 Threshing device 14 Handling room 15 Spindle 16 Handling cylinder
42 Handling processor
44 1st support plate (support plate)
45 Second support plate (support member)
46 3rd support plate (support plate)
47 handling frame
47A, 47B mounting hole 48 treats teeth S inner space

Claims (1)

刈取穀稈の搬送方向に沿って架設した支軸を支点にして回転駆動されることで、扱室に供給された刈取穀稈に対して脱穀処理を施す扱胴と、その扱胴の上部側を覆う天板とを備え、前記天板に、前記扱胴の回転駆動に伴って前記刈取穀稈を脱穀処理方向下手側に向けて案内する複数の送塵弁を装備した全稈投入型コンバインの脱穀構造であって、
前記扱胴を、その本体部分を構成する本体構成部材と、その本体構成部材から外方に向けて突出する複数の扱歯とから構成してあることを特徴とする全稈投入型コンバインの脱穀構造。
A handling cylinder that performs threshing processing on the harvested cereal grains supplied to the handling chamber by being rotationally driven about a support shaft that is erected along the conveying direction of the harvested cereal grains, and an upper side of the handling cylinder An all-throw-in type combine combiner equipped with a plurality of dust-feeding valves for guiding the harvested cereal rice cake toward the lower side in the threshing treatment direction as the handle is rotated. Threshing structure of
Threshing of a full throwing type combine harvester characterized in that the handling cylinder is constituted by a main body constituting member constituting the main body portion and a plurality of tooth handling teeth projecting outward from the main body constituting member. Construction.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022019073A1 (en) * 2020-07-22 2022-01-27 株式会社クボタ Threshing device and harvesting machine

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JPS6430513A (en) * 1987-07-28 1989-02-01 Kubota Ltd Threshing drum structure of axial flow type thresher
JPH02107941U (en) * 1989-02-17 1990-08-28
JPH1118558A (en) * 1997-07-09 1999-01-26 Kubota Corp Treating drum structure of threshing machine
JPH1128020A (en) * 1997-07-11 1999-02-02 Kubota Corp Threshing drum structure of threshing apparatus
JPH1128019A (en) * 1997-07-10 1999-02-02 Kubota Corp Threshing drum structure of threshing apparatus

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JPS6430513A (en) * 1987-07-28 1989-02-01 Kubota Ltd Threshing drum structure of axial flow type thresher
JPH02107941U (en) * 1989-02-17 1990-08-28
JPH1118558A (en) * 1997-07-09 1999-01-26 Kubota Corp Treating drum structure of threshing machine
JPH1128019A (en) * 1997-07-10 1999-02-02 Kubota Corp Threshing drum structure of threshing apparatus
JPH1128020A (en) * 1997-07-11 1999-02-02 Kubota Corp Threshing drum structure of threshing apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022019073A1 (en) * 2020-07-22 2022-01-27 株式会社クボタ Threshing device and harvesting machine

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