JP2022012793A - Harvester - Google Patents

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JP2022012793A
JP2022012793A JP2020114878A JP2020114878A JP2022012793A JP 2022012793 A JP2022012793 A JP 2022012793A JP 2020114878 A JP2020114878 A JP 2020114878A JP 2020114878 A JP2020114878 A JP 2020114878A JP 2022012793 A JP2022012793 A JP 2022012793A
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handling
support member
state
scraping
threshing
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JP7412290B2 (en
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雅志 高木
Masashi Takagi
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Kubota Corp
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Kubota Corp
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Abstract

To make it possible to smoothly rake a harvest to be threshed to a threshing part by a raking part, regardless of the nature or the state of the harvest to be threshed, in a harvester equipped with a thresher that receives and threshes the harvest harvested by a harvesting part, and comprising a raking part that rakes the product to be threshed, which is charged to a threshing chamber, to a threshing cylinder in the thresher, and a threshing part that threshes the product to be threshed from the raking part.SOLUTION: A raking part 30 comprises: a base part 32; and a spiral blade 33 stood up from an outer peripheral part of the base part 32 toward a threshing cylinder radial outer side, for raking the product to be threshed toward the rear part of the threshing cylinder 21. The harvester is equipped with a shape change mechanism 55 for changing the shape of the raking part 30.SELECTED DRAWING: Figure 2

Description

本発明は、収穫機に関する。 The present invention relates to a harvester.

収穫機には、機体前部に設けられ、圃場の作物を収穫する収穫部と、前記収穫部によって収穫された作物を機体後方に向けて搬送する搬送装置と、前記搬送装置によって搬送された作物を脱穀処理物として受け入れ、受け入れた脱穀処理物を脱穀処理する脱穀装置と、が備えられ、前記脱穀装置に、前記搬送装置によって作物が脱穀処理物として投入される扱室と、前記扱室に回転可能に設けられ、前記扱室に投入された脱穀処理物を脱穀処理する扱胴と、前記扱胴における下部の周囲に設けられた受網と、が備えられたものがある。また、この種の収穫機において、前記扱胴に、前記扱胴の前部に設けられ、前記扱室に投入された脱穀処理物を前記扱胴の後部に向けて掻き込む掻込み部と、前記掻込み部の後部に連続する状態で設けられ、前記掻込み部からの脱穀処理物を扱き処理する扱き処理部と、が備えられたものがある。 The harvester is provided at the front part of the machine, and has a harvesting section for harvesting crops in the field, a transport device for transporting the crops harvested by the harvesting section toward the rear of the machine, and a crop transported by the transport device. The threshing device is provided with a threshing device for accepting the threshing product as a threshing product and threshing the received threshing product. Some are rotatably provided with a threshing cylinder for threshing the threshed product put into the handling chamber, and a receiving net provided around the lower portion of the handling cylinder. Further, in this type of harvester, the handling cylinder has a scraping portion provided at the front portion of the handling cylinder and scrapes the threshed product charged into the handling chamber toward the rear portion of the handling cylinder. Some are provided in a continuous state at the rear portion of the scraping portion, and are provided with a handling processing section for handling and processing the threshed product from the scraping portion.

この種の収穫機としては、特許文献1に示されるコンバインがある。特許文献1に示されるコンバインでは、収穫部としての刈取部、搬送装置としての搬送部、脱穀装置が備えられている。脱穀装置に、扱室および扱胴が備えられ、扱胴に、掻き込み部および扱き処理部が備えられている。 As a harvester of this kind, there is a combine shown in Patent Document 1. The combine shown in Patent Document 1 is provided with a harvesting section as a harvesting section, a transport section as a transport device, and a threshing device. The threshing device is provided with a handling chamber and a handling cylinder, and the handling cylinder is provided with a scraping unit and a handling processing unit.

特開2019-4765号公報Japanese Unexamined Patent Publication No. 2019-4765

従来、収穫しようとする作物が有する性質や状態が異なると、扱室に投入された脱穀処理物が掻込み部に詰まって扱き処理部にスムーズに掻き込まれず、脱穀処理がスムーズに行えないことがある。 Conventionally, if the properties and conditions of the crop to be harvested are different, the threshed product put into the handling room is clogged in the scraping section and is not smoothly scraped into the handling section, so that the threshing process cannot be performed smoothly. There is.

本発明は、作物の性質や状態如何にかかわらず、脱穀処理物を掻込み部によって扱き処理部にスムーズに掻き込ませることができる収穫機を提供する。 The present invention provides a harvester capable of smoothly scraping a threshed product into a processing section by a scraping section regardless of the nature and condition of the crop.

本発明による収穫機は、
機体前部に設けられ、圃場の作物を収穫する収穫部と、前記収穫部によって収穫された作物を機体後方に向けて搬送する搬送装置と、前記搬送装置によって搬送された作物を脱穀処理物として受け入れ、受け入れた脱穀処理物を脱穀処理する脱穀装置と、が備えられ、前記脱穀装置に、前記搬送装置によって作物が脱穀処理物として投入される扱室と、前記扱室に回転可能に設けられ、前記扱室に投入された脱穀処理物を脱穀処理する扱胴と、前記扱胴における下部の周囲に設けられた受網と、が備えられ、前記扱胴に、前記扱胴の前部に設けられ、前記扱室に投入された脱穀処理物を前記扱胴の後部に向けて掻き込む掻込み部と、前記掻込み部の後部に連続する状態で設けられ、前記掻込み部からの脱穀処理物を扱き処理する扱き処理部と、が備えられ、前記掻込み部に、基台部と、前記基台部の外周部から扱胴径方向外側に向けて立ち上げられ、脱穀処理物を前記扱胴の後部に向けて掻き込む螺旋羽根と、が備えられ、前記掻込み部の形状を変更する形状変更機構が備えられている。
The harvester according to the present invention
A harvesting section provided at the front of the machine for harvesting crops in the field, a transport device for transporting the crops harvested by the harvesting section toward the rear of the machine, and a threshing product for the crops transported by the transport device. A threshing device for threshing the accepted and accepted threshing product is provided, and the threshing device is rotatably provided with a handling chamber in which the crop is thrown as the threshing processed product by the transport device and the handling chamber. A threshing cylinder for threshing the threshed product put into the handling chamber and a receiving net provided around the lower part of the handling cylinder are provided, and the handling cylinder is provided with the front portion of the handling cylinder. It is provided in a state of being continuous with a scraping portion for scraping the threshed product charged into the handling chamber toward the rear portion of the handling cylinder and the rear portion of the scraping portion, and threshing from the scraping portion. A handling processing unit for handling and processing the processed material is provided, and the threshing portion is raised from the base portion and the outer peripheral portion of the base portion toward the outside in the radial direction of the handling body to prepare the threshing processed material. A spiral blade that scrapes toward the rear portion of the handling cylinder is provided, and a shape changing mechanism that changes the shape of the scraped portion is provided.

本構成によると、収穫しようとする作物の性質や状態が異なっても、作物の性質や状態に対応させて掻込み部の形状を変更できるので、作物の性状如何にかかわらず、脱穀処理物を掻込み部によって扱き処理部にスムーズに掻き込ませることができる。 According to this configuration, even if the properties and conditions of the crop to be harvested are different, the shape of the scraped portion can be changed according to the properties and conditions of the crop, so the threshed product can be used regardless of the properties of the crop. The scraping section allows the scraping section to be smoothly scraped.

本発明においては、
前記形状変更機構は、前記掻込み部を第1状態と、前後長さが前記第1状態の前後長さよりも短い第2状態と、に形状変更するように構成されていると好適である。
In the present invention
It is preferable that the shape changing mechanism is configured to change the shape of the scraped portion into a first state and a second state in which the front-back length is shorter than the front-back length of the first state.

本構成によると、掻込み部を第1状態に形状変更した場合における掻込み部の前後長さが掻込み部を第2状態に形状変更した場合の前後長さよりも長くなり、掻込み部を第2状態に形状変更した場合における掻込み部の前後長さが掻込み部を第1状態に形状変更した場合の前後長さよりも短くなるので、作物の性質や状態に対応させて掻込み部を第1状態と第2状態とに形状変更することにより、作物の性質や状態如何にかかわらず、脱穀処理物を扱き処理部にしっかり掻き込ませたり、脱穀処理物を損傷させないように扱き処理部に掻き込ませたりできる。 According to this configuration, the front-rear length of the scraped portion when the shape of the scraped portion is changed to the first state becomes longer than the front-rear length when the shape of the scraped portion is changed to the second state, and the scraped portion is formed. Since the front-back length of the scraped part when the shape is changed to the second state is shorter than the front-back length when the shape of the scraped part is changed to the first state, the scraped part corresponds to the nature and state of the crop. By changing the shape of the crop to the first state and the second state, regardless of the nature and condition of the crop, the threshed product is handled so that it is firmly scraped into the processing unit and the threshed product is not damaged. You can squeeze it into the part.

本発明においては、
前記第2状態の掻込み部と前記扱き処理部との間に脱着可能に設ける使用状態と、前記第1状態の掻込み部と前記扱き処理部との間に設けない非使用状態とに切り換え可能な補助扱き処理部が備えられていると好適である。
In the present invention
Switching between a use state that is detachably provided between the scraping portion in the second state and the handling section and a non-using state that is not provided between the scraping section in the first state and the handling section. It is preferable that a possible auxiliary handling unit is provided.

本構成によると、補助扱き処理部の前後長さを適切に設定することにより、掻込み部を第1状態に形状変更した場合における掻込み部の前後長さ、扱き処理部の前後長さの各前後長さを合計した前後長さと、掻込み部を第2状態に形状変更した場合における掻込み部の前後長さ、補助扱き処理部の前後長さ、扱き処理部の前後長さの各前後長さを合計した前後長さと、を同じにできるので、掻込み部の形状変更にかかわらず、扱胴全体の前後長さを一定に保ちつつ脱穀処理をできる。 According to this configuration, by appropriately setting the front-rear length of the auxiliary handling part, the front-back length of the scraping part and the front-back length of the handling part when the shape of the scraping part is changed to the first state. The front-rear length, which is the sum of the front-rear lengths, the front-rear length of the scraped portion when the shape of the scraped portion is changed to the second state, the front-rear length of the auxiliary handling processing portion, and the front-rear length of the handling processing portion. Since the front-rear length, which is the sum of the front-rear lengths, can be made the same, the grain removal process can be performed while keeping the front-rear length of the entire handling cylinder constant regardless of the shape change of the scraped portion.

本発明においては、
前記基台部は、扱胴前端側ほど小径である前側細り形状、かつ、前記扱胴の軸芯を中心とする円筒形状に構成されており、前記第2状態の掻込み部における基台部の後端部と扱胴支軸とに連結され、前記第2状態の掻込み部における前記後端部を前記扱胴支軸に支持させる支持部材が備えられ、前記支持部材は、前記第1状態の掻込み部における基台部の前後方向中間部の内側に位置する第1支持部材状態と、前記第2状態の掻込み部における前記後端部と前記扱胴支軸とに連結され、外径が前記第1支持部材状態での外径よりも大きい第2支持部材状態と、に状態変更可能に構成されていると好適である。
In the present invention
The base portion has a narrow front side having a smaller diameter toward the front end side of the handling cylinder and a cylindrical shape centered on the axis of the handling cylinder, and the base portion in the second state of the scraping portion. A support member is provided which is connected to the rear end portion and the handling cylinder support shaft and supports the rear end portion in the suction portion in the second state to the handling cylinder support shaft, and the support member is the first. The first support member state located inside the middle portion in the front-rear direction of the base portion in the scraped portion in the state, and the rear end portion and the handling cylinder support shaft in the scraped portion in the second state are connected to each other. It is preferable that the outer diameter can be changed to the second support member state in which the outer diameter is larger than the outer diameter in the first support member state.

本構成によると、支持部材を第1支持部材状態に変更することにより、支持部材は、第1状態に形状変更した掻込み部における基台部の前後方向中間部の内側に位置し、支持部材を第2支持部材状態に変更することにより、支持部材は、第2状態に形状変更した掻込み部における基台部の後端部を扱胴支軸に支持する部材になるので、掻込み部を第1状態に形状変更するのに、支持部材が障害物にならないように支持部材の全体を取外したり、掻込み部を第2状態に形状変更するのに、支持部材による基台部の支持が可能になるように支持部材の全体を取付けたりするのに比べ、支持部材を第1支持部材状態と第2支持部材状態とに変更するだけで済み、掻込み部を第1状態と第2状態とに形状変更し易い。 According to this configuration, by changing the support member to the first support member state, the support member is located inside the middle portion in the front-rear direction of the base portion in the scraping portion whose shape has been changed to the first state, and the support member. By changing to the second support member state, the support member becomes a member that supports the rear end portion of the base portion in the scraping portion whose shape has been changed to the second state to the handling body support shaft. To change the shape of the support member to the first state, remove the entire support member so that the support member does not become an obstacle, or to change the shape of the scraped part to the second state, support the base portion by the support member. Compared to mounting the entire support member so that it is possible, it is only necessary to change the support member to the first support member state and the second support member state, and the scraping portion is changed to the first state and the second state. It is easy to change the shape to the state.

本発明においては、
前記支持部材に、前記扱胴支軸に支持される第1支持部材と、前記第1支持部材の外径よりも小さい内径、および、前記第1支持部材の外径よりも大きい外径を有し、かつ、前記第1支持部材に対して脱着可能な第2支持部材と、が備えられ、
前記第2支持部材が前記第1支持部材に連結されることによって前記支持部材が前記第2支持部材状態になり、前記第2支持部材が前記第1支持部材から取り外されることによって前記支持部材が前記第1支持部材状態になると好適である。
In the present invention
The support member has a first support member supported by the handling cylinder support shaft, an inner diameter smaller than the outer diameter of the first support member, and an outer diameter larger than the outer diameter of the first support member. A second support member that can be attached to and detached from the first support member is provided.
When the second support member is connected to the first support member, the support member is in the second support member state, and when the second support member is removed from the first support member, the support member is released. It is preferable to be in the first support member state.

本構成によると、第2支持部材を第1支持部材に対して脱着する操作を行うだけで簡単に支持部材を第1支持部材状態と第2支持部材状態とに変更できる。 According to this configuration, the support member can be easily changed to the first support member state and the second support member state only by performing an operation of attaching and detaching the second support member to and from the first support member.

本発明においては、
前記第2支持部材は、前記第1支持部材から取り外されたとき、前記扱き処理部の前端部に脱着可能に支持可能に構成されていると好適である。
In the present invention
It is preferable that the second support member is configured to be removably supportable to the front end portion of the handling processing portion when it is removed from the first support member.

本構成によると、第1支持部材から取外した第2支持部材を扱胴から取り外さないで扱き処理部の前端部に取付けて格納できるので、第2支持部材を格納したり、第1支持部材に取付けたりするのにあまり手間が掛からない。 According to this configuration, the second support member removed from the first support member can be attached and stored at the front end portion of the handling processing unit without removing it from the handling cylinder, so that the second support member can be stored or stored in the first support member. It doesn't take much time to install.

本発明においては、
前記掻込み部が前記第1状態に形状変更されると、前記受網の前部が前記掻込み部における後部の直下に位置し、前記掻込み部における後部と前記受網の前部とが前後方向において重複すると好適である。
In the present invention
When the scraping portion is reshaped to the first state, the front portion of the receiving net is located directly below the rear portion of the scraping portion, and the rear portion of the scraping portion and the front portion of the receiving net are formed. It is preferable to overlap in the front-back direction.

本構成によると、掻込み部を第1状態に形状変更した場合、脱穀処理物が扱き処理部と受網の間に供給されて扱き処理部と受網とによって扱き処理される前に、掻込み部の後部において螺旋羽根と受網とによって扱き処理されるので、多量の脱穀処理物が扱室に投入された場合でも、脱穀不良を回避し易い。 According to this configuration, when the shape of the scraping portion is changed to the first state, the threshed product is supplied between the handling processing section and the receiving net and is scratched before being processed by the handling processing section and the receiving net. Since the processing is performed by the spiral blade and the receiving net at the rear part of the recessing portion, it is easy to avoid poor threshing even when a large amount of threshed material is put into the handling chamber.

本発明においては、
前記扱き処理部に、扱胴周方向に並ぶ状態で設けられ、扱胴軸芯方向に沿った方向の棒状の扱歯支持部材と、前記扱歯支持部材における扱胴軸芯方向での複数箇所から扱胴径方向外側に向けて突設された複数の扱歯と、が備えられていると好適である。
In the present invention
The handling processing unit is provided in a state of being lined up in the handling cylinder circumferential direction, and has a rod-shaped handling tooth support member in the direction along the handling body shaft core direction and a plurality of locations in the handling body shaft core direction in the handling tooth support member. It is preferable that a plurality of handling teeth projecting outward in the radial direction of the handling body are provided.

本構成によると、扱き処理部において、脱穀処理物が扱歯支持部材どうしの間を介して扱胴の内部と外部との間を流動し、扱歯と受網による扱き作用を受け、さらに、扱歯支持部材の打撃による脱穀作用を受けるので、多量の脱穀処理物が投入された場合でも、脱穀処理物が詰まらなくスムーズに脱穀処理され、かつ、脱穀不良を回避し易い。 According to this configuration, in the handling processing unit, the threshed material flows between the inside and outside of the handling cylinder through the space between the handling tooth support members, and is subjected to the handling action by the handling teeth and the receiving net, and further. Since the threshing action is received by the impact of the tooth handling support member, even when a large amount of threshed product is thrown in, the threshed product is not clogged and the threshing process is smoothly performed, and it is easy to avoid poor threshing.

普通型コンバインの全体を示す左側面図である。It is a left side view which shows the whole of the ordinary type combine. 第1状態の掻込み部を備える脱穀装置の縦断側面図である。It is a vertical sectional side view of the threshing apparatus provided with the scraping part of the 1st state. 脱穀部の正面図である。It is a front view of the threshing part. 搬送装置の後部および扱胴の前部を示す側面図である。It is a side view which shows the rear part of a transfer device, and the front part of a handling cylinder. 螺旋羽根の前端部を示す正面図である。It is a front view which shows the front end part of a spiral blade. 第1状態の掻込み部、および支持部材を示す縦断側面図である。It is a vertical sectional side view which shows the scraping part of the 1st state, and the support member. 第2状態の掻込み部を備える扱胴の前部を示す側面図である。It is a side view which shows the front part of the handling cylinder which includes the scraping part of the 2nd state. 第2状態の掻込み部、および支持部材を示す縦断側面図である。It is a vertical sectional side view which shows the scraping part of the 2nd state, and the support member.

以下、本発明の一例である実施形態を図面に基づいて説明する。
なお、以下の説明では、普通型コンバイン(「収穫機」の一例)の走行機体に関し、図1に示される矢印Fの方向を「機体前方」、矢印Bの方向を「機体後方」、矢印Uの方向を「機体上方」、矢印Dの方向を「機体下方」、紙面表側の方向を「機体左方」、紙面裏側の方向を「機体右方」とする。
Hereinafter, embodiments that are an example of the present invention will be described with reference to the drawings.
In the following description, the direction of the arrow F shown in FIG. 1 is "front of the aircraft", the direction of the arrow B is "rear of the aircraft", and the arrow U of the traveling aircraft of the ordinary combine (an example of the "harvester"). The direction of is "above the aircraft", the direction of the arrow D is "below the aircraft", the direction on the front side of the paper is "left side of the aircraft", and the direction on the back side of the paper is "right side of the aircraft".

〔普通型コンバインの全体〕
図1に示されるように、普通型コンバインは、角パイプ材などの複数の鋼材を連結して構成された機体フレーム1、機体フレーム1の下部に設けられた左右一対のクローラ式の走行装置2を有する走行機体を備えている。走行機体の前部(機体前部)に、運転部4おおび収穫搬送装置6が設けられている。運転部4には、運転座席3が備えられている。運転座席3の下方に、エンジン5が設けられている。収穫搬送装置6には、収穫搬送装置6の前部に設けられ、圃場に植立する作物としての稲、麦、蕎などの穀稈をバリカン型の刈取装置7によって刈り取って収穫する収穫部8と、収穫搬送装置6の後部に設けられ、収穫部8によって収穫された刈取穀稈を走行機体の所定箇所に搬送する搬送装置9と、が備えられている。走行機体の後部に、搬送装置9によって搬送された刈取穀稈を受け入れて脱穀処理し、脱穀後の脱穀処理物の選別処理を行う脱穀装置10、および、脱穀装置10によって得られた穀粒を回収して貯留する穀粒タンク11が設けられている。穀粒タンク11の後部に、穀粒タンク11から穀粒を排出する穀粒排出装置12が接続されている。
[Whole ordinary combine]
As shown in FIG. 1, the ordinary combine has an airframe frame 1 formed by connecting a plurality of steel materials such as square pipe materials, and a pair of left and right crawler type traveling devices 2 provided under the airframe frame 1. It is equipped with a traveling machine having a. A driving unit 4 and a harvesting / transporting device 6 are provided at the front portion of the traveling machine body (front part of the machine body). The driver unit 4 is provided with a driver's seat 3. An engine 5 is provided below the driver's seat 3. The harvest transport device 6 is provided in front of the harvest transport device 6, and is used to harvest rice, wheat, soybeans and other crops to be planted in the field by using a varican-type harvesting device 7. And a transport device 9 provided at the rear of the harvest transport device 6 and transporting the harvested grain rice harvested by the harvest section 8 to a predetermined position of the traveling machine. At the rear of the traveling machine, a threshing device 10 that receives a harvested grain culm transported by a transport device 9 and threshs it, and sorts a threshed product after threshing, and a grain obtained by the threshing device 10. A grain tank 11 for collecting and storing is provided. A grain discharging device 12 for discharging grains from the grain tank 11 is connected to the rear portion of the grain tank 11.

〔搬送装置の構成〕
図1,2に示されるように、搬送装置9は、収穫部8の後部から脱穀装置10の前部に至る搬送ケース13を備えている。搬送ケース13の内部に、搬送ケース内の下部と搬送ケース内の上部とにわたって回転可能に設けられた無端回動帯状体14が備えられている。無端回動帯状体14の長手方向での複数箇所に係止搬送部14aが備えられている。図2,4に示されるように、搬送ケース13の内部のうち、搬送装置9の搬送終端部に対応する部位に、脱穀装置10の扱室20の横幅方向に沿う方向に延びる軸芯15aを有する回転部材15が設けられている。図4に示されるように、回転部材15の軸芯15aは、脱穀装置10に備えられている受網25における扱胴側周面の下端25tよりも低い位置に配置されている。本実施形態では、扱胴21の周方向に沿う円弧状に形成された状態で扱胴21の下方に位置する棒状部材が受網25に備えられている。扱胴側周面の下端25tは、棒状部材のうち、扱胴前後方向視において最も低く位置する部位の下端である。回転部材15の軸芯15aは、扱胴21に備えられている掻込み部30が有する螺旋羽根33の下端部33tよりも低い位置に配置されている。回転部材15は、無端回動帯状体14からの刈取穀稈を扱室20の前部に投入する。具体的には、回転部材15に、搬送装置9における搬送経路の全幅にわたる状態の放擲羽根15bが備えられている。3枚の放擲羽根15bが回転部材15の周方向に並んでいる。回転部材15は、無端回動帯状体14からの刈取穀稈を放擲羽根15bによって螺旋羽根33の下方から螺旋羽根33に向けて放擲する。本実施形態では、回転部材15は、無端回動帯状体14の搬送終端部よりも上側に設けられているが、これに限らず、無端回動帯状体14の搬送終端部が巻回されている輪体16の回転支軸に支持される構成を採用したものであってもよい。
[Structure of transport device]
As shown in FIGS. 1 and 2, the transport device 9 includes a transport case 13 extending from the rear portion of the harvesting section 8 to the front portion of the threshing device 10. Inside the transport case 13, an endless rotating band-shaped body 14 rotatably provided over a lower portion in the transport case and an upper portion in the transport case is provided. Locking transport portions 14a are provided at a plurality of locations in the longitudinal direction of the endless rotating strip 14. As shown in FIGS. A rotating member 15 is provided. As shown in FIG. 4, the shaft core 15a of the rotating member 15 is arranged at a position lower than the lower end 25t of the peripheral surface on the handling cylinder side in the receiving net 25 provided in the threshing device 10. In the present embodiment, the receiving net 25 is provided with a rod-shaped member located below the handling cylinder 21 in a state of being formed in an arc shape along the circumferential direction of the handling cylinder 21. The lower end 25t of the peripheral surface on the handling cylinder side is the lower end of the portion of the rod-shaped member located at the lowest position in the front-rear direction of the handling cylinder. The shaft core 15a of the rotating member 15 is arranged at a position lower than the lower end portion 33t of the spiral blade 33 included in the scraping portion 30 provided in the handling cylinder 21. The rotating member 15 throws the cut grain culm from the endless rotating strip 14 into the front part of the handling chamber 20. Specifically, the rotating member 15 is provided with a release blade 15b in a state covering the entire width of the transfer path in the transfer device 9. Three release blades 15b are arranged in the circumferential direction of the rotating member 15. The rotating member 15 discharges the cut grain culm from the endless rotating strip 14 from below the spiral blade 33 toward the spiral blade 33 by the releasing blade 15b. In the present embodiment, the rotating member 15 is provided above the transport end portion of the endless rotating band-shaped body 14, but the present invention is not limited to this, and the transport end portion of the endless rotating band-shaped body 14 is wound around. It may adopt the structure supported by the rotation support shaft of the wheel body 16.

搬送装置9においては、回転部材15がエンジン5からの動力によって軸芯15aを回転中心にして矢印Z(図4参照)で示される回転方向に駆動される。無端回動帯状体14の搬送終端側が巻回されている輪体16が回転部材15から無端ベルト(図示せず)によよって伝達される動力によって駆動されて、無端回動帯状体14が輪体16によって駆動される。収穫部8からの刈取穀稈の株元から穂先までの全稈が無端回動帯状体14の係止搬送部14aによる係止搬送によって搬送ケース13の内部を揚送される。無端回動帯状体14によって搬送された刈取穀稈が回転部材15に受け継がれ、回転部材15の放擲羽根15bによって螺旋羽根33の下方から掻込み部30に向けて放擲されて脱穀装置10の扱室20に投入される。 In the transfer device 9, the rotating member 15 is driven by the power from the engine 5 in the rotation direction indicated by the arrow Z (see FIG. 4) with the axis 15a as the center of rotation. The ring body 16 around which the transport end side of the endless rotating band-shaped body 14 is wound is driven by the power transmitted from the rotating member 15 by the endless belt (not shown), and the endless rotating band-shaped body 14 is driven by a ring. It is driven by the body 16. The entire culm from the stock root to the tip of the harvested culm from the harvesting section 8 is lifted inside the transport case 13 by the locking transport section 14a of the endless rotating strip 14. The harvested grain culm conveyed by the endless rotating strip 14 is inherited by the rotating member 15, and is released from below the spiral blade 33 toward the scraping portion 30 by the releasing blade 15b of the rotating member 15, and the threshing device 10 It is put into the handling room 20 of.

〔脱穀装置の構成〕
脱穀装置10および扱胴21の説明にあたり、脱穀装置10および扱胴21の処理始端側[穀稈投入側(図2の紙面左側)]を「前」とし、脱穀装置10および扱胴21の処理終端側[穀稈排出側(図2の紙面右側)]を「後」とする。
[Streshing device configuration]
In the explanation of the threshing device 10 and the handling cylinder 21, the processing of the threshing device 10 and the handling cylinder 21 is performed with the processing start end side [grain culm input side (left side of the paper in FIG. 2)] of the threshing device 10 and the handling cylinder 21 as "front". The terminal side [grain culm discharge side (right side of the paper in FIG. 2)] is defined as "rear".

図2に示されるように、脱穀装置10は、脱穀装置10の上部に設けられた脱穀部10Aと、脱穀部10Aにおける扱室20の下方に設けられた選別部10Bと、を備えている。脱穀装置10において、脱穀部10Aにおける脱穀処理方向が走行機体の前後方向と一致し、脱穀処理方向の上手側が走行機体の前側に位置するように設定されている。 As shown in FIG. 2, the threshing device 10 includes a threshing section 10A provided in the upper part of the threshing device 10 and a sorting section 10B provided below the handling chamber 20 in the threshing section 10A. In the threshing device 10, the threshing processing direction in the threshing unit 10A coincides with the front-rear direction of the traveling machine, and the upper side of the threshing processing direction is set to be located on the front side of the traveling machine.

図2に示されるように、脱穀部10Aは、脱穀装置10の上部に形成された扱室20を備えている。扱室20に、扱胴21が設けられている。扱胴21は、扱胴支軸22を回転中心にして、正面視右回り方向(図3に矢印Xで示される方向)に回転駆動される。扱室20の前下部に、刈取穀稈の扱室20への投入を可能にする供給口23が形成されている。扱室20の後下部に、脱穀排稈や切れワラなどの脱穀処理物の扱室外への排出を可能にする排塵口24が形成されている。扱胴21における下部の周囲(扱胴21の周囲のうちの扱胴21の下方の領域)に受網25が備えられている。受網25は、コンケーブ型に構成されている。 As shown in FIG. 2, the threshing section 10A includes a handling chamber 20 formed in the upper part of the threshing device 10. A handling cylinder 21 is provided in the handling chamber 20. The handling cylinder 21 is rotationally driven in a clockwise direction (direction indicated by an arrow X in FIG. 3) with the handling cylinder support shaft 22 as the center of rotation. A supply port 23 is formed in the lower front portion of the handling chamber 20 to allow the cut grain culm to be charged into the handling chamber 20. A dust outlet 24 is formed in the lower rear portion of the handling chamber 20 to enable the threshing processed material such as a threshing culm and a cut straw to be discharged to the outside of the handling chamber. A receiving net 25 is provided around the lower part of the handling cylinder 21 (the area below the handling cylinder 21 in the periphery of the handling cylinder 21). The receiving net 25 is configured in a concave type.

扱室20は、扱胴21を支持する前支持壁26と後支持壁27、扱胴21の上方に設けられた天板28、および、受網25などによって形成されている。天板28の内側に扱室20の前後方向に並ぶ複数の送塵弁29が設けられている。扱胴21には、図2に示されるように、扱胴21の前部に設けられた掻込み部30と、扱胴21のうち、掻込み部30の後側の部位に設けられた扱き処理部31と、が備えられている。扱き処理部31は、掻込み部30の後部に連続している。 The handling chamber 20 is formed by a front support wall 26 and a rear support wall 27 that support the handling cylinder 21, a top plate 28 provided above the handling cylinder 21, a receiving net 25, and the like. A plurality of dust feeding valves 29 arranged in the front-rear direction of the handling chamber 20 are provided inside the top plate 28. As shown in FIG. 2, the handling cylinder 21 has a scraping portion 30 provided in the front portion of the handling cylinder 21 and a handling portion provided in a portion of the handling cylinder 21 on the rear side of the scraping portion 30. A processing unit 31 is provided. The handling unit 31 is continuous with the rear portion of the scraping unit 30.

脱穀部10Aにおいては、搬送装置9における回転部材15によって供給口23を通して扱室20の前部に投入された刈取穀稈の株元から穂先までの全稈が脱穀処理物として掻込み部30によって扱胴21の後部に向けて掻き込まれて扱き処理部31と受網25とによって脱穀処理される。脱穀処理される脱穀処理物は、回転する扱き処理部31によって回動力を付与されて送塵弁29に当り、送塵弁29によって扱室20の後方に向けて流れるように案内される。脱穀処理物は、扱き処理部31によって扱室20の後方に向けて移送されつつ脱穀処理される。脱穀処理によって得た穀粒が受網25から漏下する。脱穀処理によって発生した脱穀排稈や切れワラなどの脱穀処理物が排塵口24から扱室20の外部へ排出される。 In the threshing section 10A, all the culms from the stock root to the tip of the harvested culm thrown into the front part of the handling chamber 20 through the supply port 23 by the rotating member 15 in the transport device 9 are used as the threshing section by the threshing section 30. It is scraped toward the rear part of the handling cylinder 21 and threshed by the handling processing unit 31 and the receiving net 25. The threshed product to be threshed is subjected to rotational power by the rotating hazing processing unit 31 to hit the dust feeding valve 29, and is guided by the dust feeding valve 29 so as to flow toward the rear of the handling chamber 20. The threshed product is threshed while being transferred toward the rear of the handling chamber 20 by the handling processing unit 31. The grains obtained by the threshing process leak from the receiving net 25. Threshed products such as threshed culms and cut straw generated by the threshing process are discharged from the dust discharge port 24 to the outside of the handling chamber 20.

〔扱胴の構成〕
扱胴21は、図2に示されるように、扱室20の前後方向に沿う姿勢で扱室20に設けられている。扱胴21には、扱胴軸芯Pを回転中心として回転駆動される扱胴支軸22と、扱胴支軸22の前部に支持されている掻込み部30と、掻込み部30の後部に連続する状態で扱胴支軸22に支持される扱き処理部31と、が備えられている。
[Structure of handling body]
As shown in FIG. 2, the handling cylinder 21 is provided in the handling chamber 20 in a posture along the front-rear direction of the handling chamber 20. The handling cylinder 21 includes a handling cylinder support shaft 22 that is rotationally driven around the handling cylinder shaft core P, a scraping portion 30 supported by the front portion of the handling cylinder support shaft 22, and a scraping portion 30. A handling processing unit 31 supported by the handling cylinder support shaft 22 in a state of being continuous to the rear portion is provided.

〔掻込み部の構成〕
図2,4に示されるように、掻込み部30に、扱胴支軸22の前部に支持される基台部32と、基台部32の外周部から扱胴径方向外側に向けて立ち上げられた螺旋羽根33と、が備えられている。基台部32は、図2,4に示されるように、扱胴前端側ほど小径である前側細り形状に構成されている。基台部32は、扱胴軸芯Pを中心とする前側細りの筒形状に成形された板部材によって構成されている。螺旋羽根33は、基台部32に4本並列状態で設けられ、4重の螺旋羽根になっている。
[Structure of scraping part]
As shown in FIGS. The spiral blade 33 that has been started up is provided. As shown in FIGS. 2 and 4, the base portion 32 is configured to have a narrow front side having a smaller diameter toward the front end side of the handling cylinder. The base portion 32 is composed of a plate member formed in a tubular shape with a narrow front side centered on the handling barrel shaft core P. Four spiral blades 33 are provided on the base portion 32 in parallel, and are quadruple spiral blades.

螺旋羽根33は、図3,5に示されるように、螺旋羽根33における前端の基台部側と反対側の角部33aが角張るように構成されている。螺旋羽根33は、螺旋羽根33における前端部33bが扱胴径方向外側に向けて盛り上がるように構成されている。 As shown in FIGS. 3 and 5, the spiral blade 33 is configured such that the corner portion 33a on the side opposite to the base portion side of the front end of the spiral blade 33 is angular. The spiral blade 33 is configured such that the front end portion 33b of the spiral blade 33 rises toward the outside in the radial direction of the handling cylinder.

図2,4に示されるように、受網25の前部25aが掻込み部30における後部の直下まで延ばされ、掻込み部30の後部と受網25の前部25aとが前後方向において重複している。好ましくは、受網25の前部25aが掻込み部30における前後中間部の直下まで延ばされ、掻込み部30における前後中間部と受網25の前部25aとが前後方向において重複しているように構成する。 As shown in FIGS. It's a duplicate. Preferably, the front portion 25a of the receiving net 25 is extended to just below the front-rear intermediate portion in the suction portion 30, and the front-rear intermediate portion in the suction portion 30 and the front portion 25a of the receiving net 25 overlap in the front-rear direction. Configure to be.

図3,4に示されるように、掻込み部30の下方に、供給口23からの刈取穀稈を掻込み部30に案内する案内部34が設けられている。案内部34は、前下がり傾斜の状態で設けられている。 As shown in FIGS. 3 and 4, a guide portion 34 for guiding the cut grain culm from the supply port 23 to the scraping portion 30 is provided below the scraping portion 30. The guide portion 34 is provided in a state of being inclined forward.

掻込み部30においては、基台部32が扱胴支軸22によって駆動されて、4重の螺旋羽根33が扱胴軸芯Pを回転中心にして回転駆動される。搬送装置9の回転部材15によって供給口23を通して扱室20の前部に投入された刈取穀稈の株元から穂先までの全稈が回転する螺旋羽根33によって案内部34に沿わせて扱胴21の後部に向けて掻き込まれる。回転部材15による刈取穀稈の放擲が螺旋羽根33の下方から螺旋羽根33に向けて行われる。刈取穀稈が案内部34によって掻込み部30に向かうように案内される。螺旋羽根33の角部33aの角張りによって刈取穀稈が螺旋羽根33の前端に引っ掛かり易い。螺旋羽根33の前端に引っ掛かった刈取穀稈が螺旋羽根33の前端部33bにおける盛り上がりによって螺旋羽根33から外れ難くい。これにより、刈取穀稈が螺旋羽根33によって扱胴21の後部に向けてしっかり掻き込まれる。 In the scraping portion 30, the base portion 32 is driven by the handling cylinder support shaft 22, and the quadruple spiral blades 33 are rotationally driven around the handling cylinder shaft core P. A spiral blade 33 that rotates all culms from the stock root to the tip of the harvested culm thrown into the front part of the handling chamber 20 through the supply port 23 by the rotating member 15 of the transport device 9 along the handling cylinder 34. It is squeezed toward the rear of 21. The cutting grain culm is released by the rotating member 15 from below the spiral blade 33 toward the spiral blade 33. The cut grain culm is guided by the guide portion 34 toward the scraping portion 30. Due to the angular tension of the corner portion 33a of the spiral blade 33, the cut grain culm is easily caught on the front end of the spiral blade 33. The cut grain culm caught on the front end of the spiral blade 33 is hard to come off from the spiral blade 33 due to the swelling at the front end portion 33b of the spiral blade 33. As a result, the harvested grain culm is firmly scraped toward the rear part of the handling cylinder 21 by the spiral blade 33.

〔扱き処理部の構成〕
図2,4に示されるように、扱き処理部31に、扱胴21の周方向に間隔を空けて並ぶ状態で扱胴支軸22に支持される複数の扱歯支持部材40が備えられている。本実施形態では、6本の扱歯支持部材40が備えられている。各扱歯支持部材40は、扱胴軸芯Pに沿う方向の棒状の部材によって構成されている。扱胴支軸22による扱歯支持部材40の支持は、扱胴支軸22の軸芯方向での複数箇所において、扱胴支軸22と扱歯支持部材40とが円板部材41によって連結されることによって行われている。扱胴21の扱き処理部31における外周部としての扱歯支持部材40に、扱歯42が扱胴径方向外側に向けて立設されている。扱歯42は、扱歯支持部材40における扱胴軸芯方向での複数箇所から立設されている。扱歯42は、棒状の部材によって構成されている。扱き処理部31は、籠状に構成されている。
[Structure of handling processing unit]
As shown in FIGS. There is. In this embodiment, six tooth handling support members 40 are provided. Each tooth handling support member 40 is composed of a rod-shaped member in the direction along the handling body shaft core P. In the support of the handle tooth support member 40 by the handle body support shaft 22, the handle body support shaft 22 and the handle tooth support member 40 are connected by a disk member 41 at a plurality of positions in the axial direction of the handle body support shaft 22. It is done by doing. The handling teeth 42 are erected on the handling tooth support member 40 as the outer peripheral portion of the handling processing portion 31 of the handling cylinder 21 toward the outside in the radial direction of the handling cylinder. The handling teeth 42 are erected from a plurality of positions in the handling tooth support member 40 in the direction of the handling barrel axis. The handling tooth 42 is composed of a rod-shaped member. The handling processing unit 31 is configured in a basket shape.

扱き処理部31においては、脱穀処理物が扱歯支持部材40どうしの間を介して扱胴21の内部と外部との間を流動し、扱歯42と受網25による扱き作用を受けて、かつ、扱歯支持部材40の打撃による脱穀作用を受けて脱穀処理される。 In the handling processing unit 31, the threshed material flows between the inside and outside of the handling cylinder 21 via the gap between the handling tooth support members 40, and is subjected to the handling action by the handling teeth 42 and the receiving net 25. In addition, it is threshed by being threshed by the impact of the tooth handling support member 40.

本実施形態では、扱歯支持部材40は、丸パイプ鋼材によって構成されている。扱歯支持部材40には、丸パイプ鋼材の他、丸鋼材、角棒鋼材、角パイプ鋼材などの各種の棒状部材を採用することができる。本実施形態では、各扱歯42は、丸鋼材によって構成されている。扱歯42には、丸鋼材の他、角棒鋼材、丸パイプ材、各パイプ材など各種の棒状部材を採用することができる。 In the present embodiment, the tooth handling support member 40 is made of a round pipe steel material. In addition to the round pipe steel material, various rod-shaped members such as a round steel material, a square bar steel material, and a square pipe steel material can be adopted as the tooth handling support member 40. In the present embodiment, each of the handling teeth 42 is made of a round steel material. In addition to the round steel material, various rod-shaped members such as a square bar steel material, a round pipe material, and each pipe material can be adopted for the tooth handling 42.

〔選別部の構成〕
選別部10Bには、図2に示されるように、受網25の下方に揺動駆動可能に設けられた揺動選別装置45、揺動選別装置45の前下方に設けられた唐箕46、唐箕46の後方において、揺動選別装置45の下方に設けられた1番回収部47及び2番回収部48が備えられている。本実施形態では、1番回収部47及び2番回収部48は、脱穀装置10の横幅方向に延びるスクリューコンベヤによって構成されている。
[Structure of sorting unit]
As shown in FIG. 2, the sorting unit 10B includes a swing sorting device 45 provided below the receiving net 25 so as to be swing-driven, a wall insert 46 provided below the front of the swing sorting device 45, and a wall insert. Behind the 46, a first recovery section 47 and a second recovery section 48 provided below the swing sorting device 45 are provided. In the present embodiment, the first collection unit 47 and the second collection unit 48 are configured by a screw conveyor extending in the lateral width direction of the threshing device 10.

選別部10Bにおいては、受網25から漏下した処理物が揺動選別装置45に落下して受け入れられ、受け入れられた処理物が揺動選別装置45によって後方に向けて搬送されつつゆすられて、かつ、唐箕46によって揺動選別装置45の前下方から揺動選別装置45の後方に向けて供給される選別風を受けて選別処理される。選別処理によって得られた1番処理物としての清粒が1番回収部47に流下して回収され、1番回収部47によって脱穀装置10の穀粒タンク側の横外側へ搬送される。選別処理によって得られた2番処理部物としての未処理粒が2番回収部48に流下して回収され、2番回収部48によって脱穀装置10の穀粒タンク側の横外側へ搬送される。選別処理によって発生した3番処理物としてのワラ屑などの選別塵埃が脱穀装置10の後部に設けられた塵埃排出口49から選別風とともに脱穀装置10の後方に排出される。 In the sorting unit 10B, the processed material leaked from the receiving net 25 is dropped and received by the swing sorting device 45, and the received processed material is shaken while being conveyed backward by the swing sorting device 45. In addition, the wall insert 46 receives the sorting wind supplied from the front lower part of the swing sorting device 45 toward the rear of the swing sorting device 45 and performs sorting processing. The clear grains as the first processed product obtained by the sorting process flow down to the first recovery unit 47 and are collected, and are conveyed to the lateral outside of the threshing device 10 on the grain tank side by the first collection unit 47. The untreated grains as the second processed part obtained by the sorting process flow down to the second collecting part 48 and are collected, and are conveyed to the lateral outside of the threshing device 10 on the grain tank side by the second collecting part 48. .. Sorting dust such as straw waste as the third processed product generated by the sorting process is discharged to the rear of the threshing device 10 together with the sorting wind from the dust discharge port 49 provided at the rear of the threshing device 10.

1番回収部47によって搬送された清粒は、1番回収部47に接続された揚穀装置50によって穀粒タンク11に供給される。2番回収部48によって搬送された未処理粒は、2番回収部48に接続された還元装置51によって揺動選別装置45の始端部に還元される。 The clear grains conveyed by the first collection unit 47 are supplied to the grain tank 11 by the grain frying device 50 connected to the first collection unit 47. The untreated grains conveyed by the No. 2 recovery unit 48 are reduced to the starting end portion of the swing sorting device 45 by the reduction device 51 connected to the No. 2 collection unit 48.

収穫物の性質や状態の如何にかかわらず、収穫物が掻込み部30によって扱き処理部31にスムーズに、損傷しないで掻き込まれるように、掻込み部30の形状を形状変更機構55によって変更するように構成されている。 Regardless of the nature and condition of the harvested material, the shape of the scraped portion 30 is changed by the shape changing mechanism 55 so that the harvested product is smoothly and undamaged into the handling unit 31 by the scraping portion 30. It is configured to do.

具体的には、形状変更機構55は、図2、4,6,7,8に示されるように、第1基台部32a、前後長さL2が第1基台部32aの前後長さL1よりも短い第2基台部32b、および、支持部材56を有し、掻込み部30を第1状態と、前後長さが第1状態よりも短い第2状態とに形状変更するように構成されている。 Specifically, as shown in FIGS. 2, 4, 6, 7, and 8, the shape changing mechanism 55 has a first base portion 32a, and the front-rear length L2 is the front-rear length L1 of the first base portion 32a. It has a second base portion 32b shorter than that and a support member 56, and is configured to change the shape of the scraping portion 30 into a first state and a second state in which the front-rear length is shorter than the first state. Has been done.

図2,4,6に示されるように、第1基台部32aが扱胴支軸22に前方から外嵌され、第1基台部32aの後端部が扱き処理部31の前端部に連結されると、掻込み部30が第1状態になる。第1基台部32aの後端部の扱き処理部31の前端部へ連結は、図6に示されるように、第1基台部32aの後端部に備えられたフランジ部57が扱き処理部31の前端部に備えられた円板部材41に連結ボルト58によって脱着可能に連結されることによって行われる。フランジ部57の円板部材41への連結は、フランジ部57と円板部材41との間に介装された第2支持部材56bとの共締めによって行われる。 As shown in FIGS. 2, 4 and 6, the first base portion 32a is fitted onto the handling cylinder support shaft 22 from the front, and the rear end portion of the first base portion 32a is attached to the front end portion of the handling processing portion 31. When connected, the scraping portion 30 is in the first state. As shown in FIG. 6, the flange portion 57 provided at the rear end portion of the first base portion 32a handles the handling of the rear end portion of the first base portion 32a to the front end portion of the handling portion 31. This is done by detachably connecting to a disk member 41 provided at the front end portion of the portion 31 by a connecting bolt 58. The flange portion 57 is connected to the disk member 41 by co-fastening with the second support member 56b interposed between the flange portion 57 and the disk member 41.

図4に示されるように、掻込み部30が第1状態に形状変更されると、受網25の前部25aが掻込み部30における後部の直下に位置し、受網25の前部25aと掻込み部30の後部とが前後方向に重複する。 As shown in FIG. 4, when the shape of the scraping portion 30 is changed to the first state, the front portion 25a of the receiving net 25 is located directly below the rear portion of the scraping portion 30, and the front portion 25a of the receiving net 25 is located. And the rear portion of the scraping portion 30 overlap in the front-rear direction.

第1状態の掻込み部30においては、第1基台部32aが第1前支持部59、円板部材41を介して扱胴支軸22によって回転駆動される。4重の螺旋羽根33が扱胴軸芯Pを回転中心にして回転駆動される。扱室20の前部に投入された刈取穀稈(脱穀処理物)が4重の螺旋羽根33によって扱胴21の後部に向けて掻き込まれ、掻込み部30の後部において螺旋羽根33と受網25の前部25aとによって扱き処理されつつ扱き処理部31に掻き込まれる。 In the scraping portion 30 in the first state, the first base portion 32a is rotationally driven by the handling body support shaft 22 via the first front support portion 59 and the disk member 41. The quadruple spiral blade 33 is rotationally driven with the handling barrel core P as the center of rotation. The harvested grain culm (threshed product) thrown into the front part of the handling chamber 20 is scraped toward the rear part of the handling cylinder 21 by the quadruple spiral blade 33, and is received by the spiral blade 33 at the rear part of the scraping portion 30. It is scraped into the handling processing unit 31 while being processed by the front portion 25a of the net 25.

図7、8に示されるように、第2基台部32bが扱胴支軸22に前方から外嵌され、第2基台部32bに前部に備えられた第2前支持部65が扱胴支軸22に支持され、第2基台部32bの後端部が支持部材56の外周部に連結されて第2基台部32bの後端部が支持部材56を介して扱胴支軸22に支持されると、掻込み部30が第2状態になる。第2基台部32bの後端部の支持部材56への連結は、第2基台部32bの後端部に備えられたフランジ部60が支持部材56に連結ボルト68によって脱着可能に連結されることによって行われる。 As shown in FIGS. It is supported by the body support shaft 22, the rear end portion of the second base portion 32b is connected to the outer peripheral portion of the support member 56, and the rear end portion of the second base portion 32b is handled via the support member 56. When supported by 22, the scraping portion 30 is in the second state. In the connection of the rear end portion of the second base portion 32b to the support member 56, the flange portion 60 provided at the rear end portion of the second base portion 32b is detachably connected to the support member 56 by the connecting bolt 68. It is done by doing.

図7,8に示されるように、掻込み部30を第2状態に形状変更した場合、第2状態の掻込み部30と扱き処理部31との間に補助扱き処理部61を設けるように構成されている。補助扱き処理部61は、補助扱き処理部61の前後長さを第2状態の掻込み部30の前後長さに加えた合計の前後長さが第1状態の掻込み部30の前後長さと等しくなるように構成されている。掻込み部30を第2状態に形状変更し、補助扱き処理部61を介装した場合における扱胴全体の前後長さと、掻込み部30を第1状態に形状変更した場合における扱胴全体の前後長さと、が同じになる。 As shown in FIGS. 7 and 8, when the shape of the scraping section 30 is changed to the second state, the auxiliary handling section 61 is provided between the scraping section 30 in the second state and the handling section 31. It is configured. In the auxiliary handling processing unit 61, the total front-rear length obtained by adding the front-rear length of the auxiliary handling processing unit 61 to the front-rear length of the suction portion 30 in the second state is the front-rear length of the suction portion 30 in the first state. It is configured to be equal. The front-rear length of the entire handling cylinder when the shape of the scraping portion 30 is changed to the second state and the auxiliary handling processing unit 61 is interposed, and the front-rear length of the entire handling cylinder when the shape of the scraping portion 30 is changed to the first state. The front and back length is the same.

補助扱き処理部61は、図7,8に示されるように、扱胴21の周方向に間隔を空けて並ぶ状態で扱胴支軸22に支持される複数の補助扱歯支持部材62を備えている。各補助扱歯支持部材62における扱胴軸芯方向での複数箇所から補助扱歯64が扱胴径方向外側に向けて突設されている。図8に示されるように、補助扱き処理部61の扱胴支軸22への支持は、補助扱歯支持部材62の前端部が支持部材56に連結ボルト68によって脱着可能に連結され、補助扱歯支持部材62の後端部が円板部材41に連結ボルト63によって脱着可能に連結されることによって行われる。 As shown in FIGS. 7 and 8, the auxiliary handling processing unit 61 includes a plurality of auxiliary handling tooth support members 62 supported by the handling body support shaft 22 in a state of being arranged at intervals in the circumferential direction of the handling body 21. ing. Auxiliary handling teeth 64 are projected outward in the radial direction of the handling barrel from a plurality of positions in each auxiliary handling tooth support member 62 in the direction of the core of the handling barrel. As shown in FIG. 8, in the support of the auxiliary handling processing unit 61 to the handling body support shaft 22, the front end portion of the auxiliary handling tooth support member 62 is detachably connected to the support member 56 by a connecting bolt 68, and the auxiliary handling is performed. This is done by detachably connecting the rear end portion of the tooth support member 62 to the disk member 41 by a connecting bolt 63.

本実施形態では、扱き処理部31における扱歯支持部材40と同じ本数の補助扱歯支持部材62が備えられているが、これに限らない。扱歯支持部材40よりも数少ない、あるいは、扱歯支持部材40よりも数多い補助扱歯支持部材62を備えるものであってもよい。本実施形態では、補助扱歯支持部材62と扱歯支持部材40とが直線状に並んでいるが、補助扱歯支持部材62と扱歯支持部材40とが扱胴周方向に位置ずれするものであってもよい。本実施形態では、補助扱歯支持部材62は、丸パイプ鋼材によって構成されている。補助扱歯支持部材62には、丸パイプ鋼材の他、丸鋼材、角棒鋼材、角パイプ鋼材などの各種の棒状部材を採用することができる。本実施形態では、補助扱歯64は、丸鋼材によって構成されている。補助扱歯64には、丸鋼材の他、角棒鋼材、丸パイプ材、各パイプ材など各種の棒状部材を採用することができる。 In the present embodiment, the same number of auxiliary tooth support members 62 as the tooth support members 40 in the handle processing unit 31 are provided, but the present invention is not limited to this. The auxiliary tooth support member 62 may be provided, which is less than the tooth support member 40 or more than the tooth support member 40. In the present embodiment, the auxiliary tooth support member 62 and the tooth support member 40 are arranged in a straight line, but the auxiliary tooth support member 62 and the tooth support member 40 are displaced in the peripheral direction of the handle. May be. In the present embodiment, the auxiliary tooth support member 62 is made of a round pipe steel material. In addition to the round pipe steel material, various rod-shaped members such as a round steel material, a square bar steel material, and a square pipe steel material can be adopted for the auxiliary tooth support member 62. In the present embodiment, the auxiliary handling tooth 64 is made of a round steel material. In addition to the round steel material, various rod-shaped members such as a square bar steel material, a round pipe material, and each pipe material can be adopted for the auxiliary handling tooth 64.

補助扱き処理部61は、図7,8に示されるように、掻込み部30が第2状態に形状変更された場合、第2状態の掻込み部30と扱き処理部31との間に脱着可能に設けられた使用状態になり、図4,6に示されるように、掻込み部30が第1状態に形状変更された場合、第1状態の掻込み部30と扱き処理部31との間に設けられず、非使用状態になる。補助扱き処理部61が使用状態にされると、受網25の前部25aが補助扱き処理部61の直下に位置し、補助扱き処理部61と受網25の前部25aとが前後方向に重複する。 As shown in FIGS. 7 and 8, the auxiliary handling section 61 is detached between the scraping section 30 in the second state and the handling section 31 when the scraping section 30 is changed in shape to the second state. As shown in FIGS. 4 and 6, when the shape of the scraping portion 30 is changed to the first state, the scraping portion 30 in the first state and the handling unit 31 It will not be provided between them and will be in an unused state. When the auxiliary handling processing unit 61 is put into use, the front portion 25a of the receiving net 25 is located directly under the auxiliary handling processing unit 61, and the auxiliary handling processing unit 61 and the front portion 25a of the receiving net 25 are located in the front-rear direction. Duplicate.

第2状態の掻込み部30においては、第2基台部32bが第2前支持部65、支持部材56を介して扱胴支軸22によって回転駆動される。2重の螺旋羽根33が扱胴軸芯Pを回転中心にして回転駆動される。扱室20の前部に投入された刈取穀稈(脱穀処理物)が2重の螺旋羽根33によって補助扱き処理部61に向けて掻き込まれる。 In the scraping portion 30 in the second state, the second base portion 32b is rotationally driven by the handling body support shaft 22 via the second front support portion 65 and the support member 56. The double spiral blade 33 is rotationally driven with the handling barrel core P as the center of rotation. The harvested grain culm (threshed product) thrown into the front part of the handling chamber 20 is scraped toward the auxiliary handling processing section 61 by the double spiral blade 33.

支持部材56は、図6,8に示されるように、扱胴支軸22に支持される第1支持部材56aと、第1支持部材56aに脱着可能な第2支持部材56bとを有している。第1支持部材56aは、扱胴支軸22に溶接されている。第2支持部材56bの中心部には、扱胴支軸22が挿通する貫通穴66が備えられている。第2支持部材56bの内径は、第1支持部材56aの外径よりも小さくされ、第2支持部材56bの外径は、第1支持部材56aの外径よりも大きくされている。第2支持部材56bの第1支持部材56aに対する脱着可能な連結は、図8に示されるように、第2支持部材56bを第1支持部材56aの後面側に後方から当て付け、第2支持部材56bの第1支持部材56aに重なる部位を連結ボルト67によって第1支持部材56aに締め付け連結することによって行われる。 As shown in FIGS. 6 and 8, the support member 56 has a first support member 56a supported by the handling body support shaft 22 and a second support member 56b detachable from the first support member 56a. There is. The first support member 56a is welded to the handling cylinder support shaft 22. A through hole 66 through which the handling cylinder support shaft 22 is inserted is provided in the central portion of the second support member 56b. The inner diameter of the second support member 56b is smaller than the outer diameter of the first support member 56a, and the outer diameter of the second support member 56b is larger than the outer diameter of the first support member 56a. As shown in FIG. 8, the detachable connection of the second support member 56b to the first support member 56a is such that the second support member 56b is applied to the rear surface side of the first support member 56a from the rear, and the second support member 56b is attached. This is done by tightening and connecting the portion of the 56b that overlaps the first support member 56a to the first support member 56a with a connecting bolt 67.

支持部材56においては、図6,8に示されるように、第2支持部材56bが第1支持部材56aから取り外されることによって第1支持部材状態に径変更され、第1状態の掻込み部30における基台部(第1基台部32a)の前後方向中間部の内側に位置する状態になる。第1支持部材56aから取り外した第2支持部材56bは、図6に示されるように、第1支持部材56aに対して後方に離間させ、扱胴支軸22に外嵌させたままで扱き処理部31の前端部に支持させて格納できる。 In the support member 56, as shown in FIGS. 6 and 8, the diameter of the second support member 56b is changed to the first support member state by being removed from the first support member 56a, and the suction portion 30 in the first state is changed. It is in a state of being located inside the middle portion in the front-rear direction of the base portion (first base portion 32a) in the above. As shown in FIG. 6, the second support member 56b removed from the first support member 56a is separated rearward from the first support member 56a, and is handled while being externally fitted to the handling cylinder support shaft 22. It can be supported and stored at the front end of 31.

支持部材56においては、図8に示されるように、第2支持部材56bが第1支持部材56aに連結されることによって外径が第1支持部材状態での外径よりも大きい第2支持部材状態に径変更され、第2状態の掻込み部30における基台部(第2基台部32b)の後端部と扱胴支軸22とに連結されて基台部(第2基台部32b)の後端部を扱胴支軸22に支持させる状態になる。 In the support member 56, as shown in FIG. 8, the second support member 56b is connected to the first support member 56a so that the outer diameter is larger than the outer diameter in the first support member state. The diameter is changed to the state, and it is connected to the rear end portion of the base portion (second base portion 32b) in the scraping portion 30 in the second state and the handling body support shaft 22, and the base portion (second base portion). 32b) is in a state where the rear end portion is supported by the handling cylinder support shaft 22.

〔別実施形態〕
(1)上記した実施形態では、扱き処理部31が籠状に構成されたバー形の扱胴21が採用された例を示したが、この限りではない。たとえば、扱き処理部31が円筒状に構成されたドラム形の扱胴が採用されたものであってもよい。また、バー形の扱胴の場合、6本の扱歯支持部材40を備えるものに限らず、たとえば、5本以下、7本以上の扱歯支持部材を備えるものであってもよい。
[Another Embodiment]
(1) In the above-described embodiment, an example is shown in which a bar-shaped handling cylinder 21 in which the handling processing unit 31 is configured in a basket shape is adopted, but this is not the case. For example, a drum-shaped handling cylinder in which the handling processing unit 31 is configured in a cylindrical shape may be adopted. Further, the bar-shaped handling cylinder is not limited to the one provided with the six handling tooth support members 40, and may be provided with, for example, five or less or seven or more handling tooth support members.

(2)上記した実施形態では、6本の扱歯支持部材40、および、6本の補助扱歯支持部材62が備えられた例を示した、これに限らない。5本以下あるいは7本以上の扱歯支持部材40および補助扱歯支持部材62を備えたものであってもよい。また、扱歯支持部材40の数量と補助扱歯支持部材62の数量とが異なるものであってもよい。 (2) In the above-described embodiment, an example is shown in which the six handling tooth support members 40 and the six auxiliary handling tooth support members 62 are provided, and the present invention is not limited to this. It may be provided with 5 or less or 7 or more handling tooth support members 40 and auxiliary handling tooth support members 62. Further, the quantity of the handle tooth support member 40 and the quantity of the auxiliary handle tooth support member 62 may be different.

(3)上記した実施形態では、受網25の前部25aが第1状態の掻込み部30の後部の直下まで延ばされた例を示したが、これに限らず、第1状態の掻込み部30の後端の直下までしか延ばされていないものであってもよい。 (3) In the above-described embodiment, an example is shown in which the front portion 25a of the receiving net 25 is extended to just below the rear portion of the scraping portion 30 in the first state, but the present invention is not limited to this, and the scratching in the first state is not limited to this. It may be extended only to just below the rear end of the recess 30.

(4)上記した実施形態では、基台部32が前側細り形状に構成された例を示したが、基台部32の前端部と後端部とにわたって外径が一定の形状に構成されたものであってもよい。 (4) In the above-described embodiment, an example in which the base portion 32 is configured to have a tapered front side is shown, but the outer diameter is configured to be constant over the front end portion and the rear end portion of the base portion 32. It may be a thing.

(5)上記した実施形態では、第1状態の掻込み部30に4重の螺旋羽根33が備えられ、第2状態の掻込み部30に2重の螺旋羽根33が備えられた例を示したが、これらに限らない。第1状態の掻込み部30に3重以下の螺旋羽根33が備えられ、第2状態の掻込み部30に一つ螺旋羽根33が備えられたものであってもよい。また、第1状態の掻込み部30および第2状態の掻込み部30に同じ数量の螺旋羽根33が備えられたものであってもよい。 (5) In the above-described embodiment, an example is shown in which the suction portion 30 in the first state is provided with the quadruple spiral blade 33, and the suction portion 30 in the second state is provided with the double spiral blade 33. However, it is not limited to these. The suction portion 30 in the first state may be provided with a triple or less spiral blade 33, and the suction portion 30 in the second state may be provided with one spiral blade 33. Further, the suction portion 30 in the first state and the suction portion 30 in the second state may be provided with the same number of spiral blades 33.

(6)上記した実施形態では、第1支持部材56aと第2支持部材56bとに分離可能な支持部材56を採用した例を示したが、これに限らない。たとえば、第2支持部材が第1支持部材56aに扱胴径方向にスライド伸縮可能に支持され、第2支持部材の伸縮によって支持部材56が第1支持部材状態と第2支持部材状態とに切り替わるものであってもよい。また、掻込み部30を第2状態に形状変更する場合、第2基台部32bを支持するように扱胴支軸22に取付け、掻込み部30を第1状態に形状変更する場合、扱胴支軸22から取り外すように構成した単一の支持部材を採用したものであってもよい。 (6) In the above-described embodiment, an example in which the support member 56 that can be separated into the first support member 56a and the second support member 56b is adopted is shown, but the present invention is not limited to this. For example, the second support member is supported by the first support member 56a so as to be slidable and expandable in the radial direction of the handling body, and the support member 56 is switched between the first support member state and the second support member state by the expansion and contraction of the second support member. It may be a thing. Further, when the shape of the scraping portion 30 is changed to the second state, the handling cylinder support shaft 22 is attached so as to support the second base portion 32b, and when the shape of the scraping portion 30 is changed to the first state, the handling is performed. A single support member configured to be removed from the trunk shaft 22 may be adopted.

本発明は、稲、麦、蕎麦などを収穫対象物とするコンバインの他、トウモロコシなど各種の作物を収穫対象物とする収穫機に適用できる。 The present invention can be applied to a combine harvester that targets rice, wheat, buckwheat, and the like, as well as a harvester that targets various crops such as corn.

8 収穫部
9 搬送装置
10 脱穀装置
20 扱室
21 扱胴
22 扱胴支軸
25 受網
25a 前部
30 掻込み部
31 扱き処理部
32 基台部
33 螺旋羽根
40 扱歯支持部材
42 扱歯
55 形状変更機構
56 支持部材
56a 第1支持部材
56b 第2支持部材
61 補助掻込み部
L1 前後長さ
L2 前後長さ
8 Harvesting part 9 Transport device 10 Threshing device 20 Handling room 21 Handling body 22 Handling body support shaft 25 Receiving net 25a Front part 30 Scratching part 31 Handling processing part 32 Base part 33 Spiral blade 40 Handling tooth support member 42 Handling tooth 55 Shape change mechanism 56 Support member 56a 1st support member 56b 2nd support member 61 Auxiliary suction part L1 Front-rear length L2 Front-rear length

Claims (8)

機体前部に設けられ、圃場の作物を収穫する収穫部と、
前記収穫部によって収穫された作物を機体後方に向けて搬送する搬送装置と、
前記搬送装置によって搬送された作物を脱穀処理物として受け入れ、受け入れた脱穀処理物を脱穀処理する脱穀装置と、が備えられ、
前記脱穀装置に、前記搬送装置によって作物が脱穀処理物として投入される扱室と、前記扱室に回転可能に設けられ、前記扱室に投入された脱穀処理物を脱穀処理する扱胴と、前記扱胴における下部の周囲に設けられた受網と、が備えられ、
前記扱胴に、前記扱胴の前部に設けられ、前記扱室に投入された脱穀処理物を前記扱胴の後部に向けて掻き込む掻込み部と、前記掻込み部の後部に連続する状態で設けられ、前記掻込み部からの脱穀処理物を扱き処理する扱き処理部と、が備えられ、
前記掻込み部に、基台部と、前記基台部の外周部から扱胴径方向外側に向けて立ち上げられ、脱穀処理物を前記扱胴の後部に向けて掻き込む螺旋羽根と、が備えられ、
前記掻込み部の形状を変更する形状変更機構が備えられている収穫機。
A harvesting section installed at the front of the machine to harvest crops in the field,
A transport device that transports the crops harvested by the harvesting section toward the rear of the machine, and
A threshing device that accepts the crops transported by the transport device as a threshing product and threshes the received threshing product is provided.
The threshing device includes a handling chamber in which crops are thrown as a threshing product by the transport device, and a handling cylinder rotatably provided in the handling chamber for threshing the threshing processed product put into the handling chamber. A receiving net provided around the lower part of the handling cylinder is provided.
The handling cylinder is continuous with a scraping portion provided at the front portion of the handling cylinder and scraping the threshed product charged into the handling chamber toward the rear portion of the handling cylinder, and a rear portion of the scraping portion. It is provided in a state, and is provided with a handling processing unit for handling and processing the threshed material from the scraping unit.
The scraping portion includes a base portion and a spiral blade that is raised from the outer peripheral portion of the base portion toward the outside in the radial direction of the handling cylinder and scrapes the threshed product toward the rear portion of the handling cylinder. Be prepared,
A harvester provided with a shape changing mechanism for changing the shape of the scraped portion.
前記形状変更機構は、前記掻込み部を第1状態と、前後長さが前記第1状態の前後長さよりも短い第2状態と、に形状変更するように構成されている請求項1に記載の収穫機。 The first aspect of the present invention, wherein the shape changing mechanism is configured to change the shape of the scraped portion into a first state and a second state in which the front-back length is shorter than the front-back length of the first state. Harvester. 前記第2状態の掻込み部と前記扱き処理部との間に脱着可能に設ける使用状態と、前記第1状態の掻込み部と前記扱き処理部との間に設けない非使用状態とに切り換え可能な補助扱き処理部が備えられている請求項2に記載の収穫機。 Switching between a use state that is detachably provided between the scraping portion in the second state and the handling section and a non-using state that is not provided between the scraping section in the first state and the handling section. The harvester according to claim 2, which is provided with a possible auxiliary hazing processing unit. 前記基台部は、扱胴前端側ほど小径である前側細り形状、かつ、前記扱胴の軸芯を中心とする円筒形状に構成されており、
前記第2状態の掻込み部における基台部の後端部と扱胴支軸とに連結され、前記第2状態の掻込み部における前記後端部を前記扱胴支軸に支持させる支持部材が備えられ、
前記支持部材は、前記第1状態の掻込み部における基台部の前後方向中間部の内側に位置する第1支持部材状態と、前記第2状態の掻込み部における前記後端部と前記扱胴支軸とに連結され、外径が前記第1支持部材状態での外径よりも大きい第2支持部材状態と、に状態変更可能に構成されている請求項2または3に記載の収穫機。
The base portion has a narrow front side having a smaller diameter toward the front end side of the handling cylinder, and has a cylindrical shape centered on the axis of the handling cylinder.
A support member that is connected to the rear end portion of the base portion in the second state of the scraping portion and the handling cylinder support shaft, and supports the rear end portion of the second state scraping portion by the handling cylinder support shaft. Is provided,
The support member includes a first support member state located inside the front-rear intermediate portion of the base portion in the first state scraping portion, and the rear end portion and the handling in the second state scraping portion. The harvester according to claim 2 or 3, which is connected to a trunk shaft and has a second support member state in which the outer diameter is larger than the outer diameter in the first support member state, and the state can be changed to. ..
前記支持部材に、前記扱胴支軸に支持される第1支持部材と、前記第1支持部材の外径よりも小さい内径、および、前記第1支持部材の外径よりも大きい外径を有し、かつ、前記第1支持部材に対して脱着可能な第2支持部材と、が備えられ、
前記第2支持部材が前記第1支持部材に連結されることによって前記支持部材が前記第2支持部材状態になり、前記第2支持部材が前記第1支持部材から取り外されることによって前記支持部材が前記第1支持部材状態になる請求項4に記載の収穫機。
The support member has a first support member supported by the handling cylinder support shaft, an inner diameter smaller than the outer diameter of the first support member, and an outer diameter larger than the outer diameter of the first support member. A second support member that can be attached to and detached from the first support member is provided.
When the second support member is connected to the first support member, the support member is in the second support member state, and when the second support member is removed from the first support member, the support member is released. The harvester according to claim 4, which is in the state of the first support member.
前記第2支持部材は、前記第1支持部材から取り外されたとき、前記扱き処理部の前端部に脱着可能に支持可能に構成されている請求項5に記載の収穫機。 The harvester according to claim 5, wherein the second support member is configured to be detachably supportable to the front end portion of the handling processing section when the second support member is removed from the first support member. 前記掻込み部が前記第1状態に形状変更されると、前記受網の前部が前記掻込み部における後部の直下に位置し、
前記掻込み部における後部と前記受網の前部とが前後方向において重複する請求項2から6のいずれか一項に記載の収穫機。
When the scraping portion is reshaped to the first state, the front portion of the receiving net is located directly below the rear portion of the scraping portion.
The harvester according to any one of claims 2 to 6, wherein the rear portion of the scraping portion and the front portion of the receiving net overlap in the front-rear direction.
前記扱き処理部に、扱胴周方向に並ぶ状態で設けられ、扱胴軸芯方向に沿った方向の棒状の扱歯支持部材と、前記扱歯支持部材における扱胴軸芯方向での複数箇所から扱胴径方向外側に向けて突設された複数の扱歯と、が備えられている請求項1から7のいずれか一項に記載の収穫機。 The handling processing unit is provided in a state of being lined up in the handling cylinder circumferential direction, and has a rod-shaped handling tooth support member in the direction along the handling body shaft core direction and a plurality of locations in the handling body shaft core direction in the handling tooth support member. The harvester according to any one of claims 1 to 7, further comprising a plurality of handling teeth projecting outward in the radial direction of the handling barrel.
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JPS5358358A (en) * 1976-11-06 1978-05-26 Kubota Ltd Treshing cylinder for thresher
JPS5381367A (en) * 1976-12-24 1978-07-18 Kubota Ltd Threshing cylinder
JPS6049711A (en) * 1983-08-31 1985-03-19 生物系特定産業技術研究推進機構 Combine
JPH0531U (en) * 1991-06-20 1993-01-08 株式会社クボタ All culm type combine
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JP2003304728A (en) * 2002-04-17 2003-10-28 Seirei Ind Co Ltd Threshing apparatus having screw threshing cylinder of general-purpose combine harvester
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JP2017055732A (en) * 2015-09-18 2017-03-23 井関農機株式会社 Threshing device

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5358358A (en) * 1976-11-06 1978-05-26 Kubota Ltd Treshing cylinder for thresher
JPS5381367A (en) * 1976-12-24 1978-07-18 Kubota Ltd Threshing cylinder
JPS6049711A (en) * 1983-08-31 1985-03-19 生物系特定産業技術研究推進機構 Combine
JPH0531U (en) * 1991-06-20 1993-01-08 株式会社クボタ All culm type combine
JPH0730016U (en) * 1993-11-12 1995-06-06 三菱農機株式会社 Threshing equipment
JP2003304728A (en) * 2002-04-17 2003-10-28 Seirei Ind Co Ltd Threshing apparatus having screw threshing cylinder of general-purpose combine harvester
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JP2009297035A (en) * 2009-08-21 2009-12-24 Kubota Corp Thresher structure of whole culm charging-type combine harvester
JP2017055732A (en) * 2015-09-18 2017-03-23 井関農機株式会社 Threshing device

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