JP7059144B2

JP7059144B2 - combine

Info

Publication number: JP7059144B2
Application number: JP2018142739A
Authority: JP
Inventors: 嘉晃井上; 憲史 ▲高▼松; 耕作野口
Original assignee: Kubota Corp
Current assignee: Kubota Corp
Priority date: 2018-07-30
Filing date: 2018-07-30
Publication date: 2022-04-25
Anticipated expiration: 2038-07-30
Also published as: JP2020018184A

Description

本発明は、扱室内で刈取穀稈を脱穀処理する脱穀装置が備えられているコンバインに関する。 The present invention relates to a combine equipped with a threshing device for threshing a harvested culm in a handling chamber.

脱穀装置の扱室内には、駆動回転される扱胴が備えられ、且つ、扱胴の外周部に沿う状態で円弧状の受網が設けられている。そして、従来では、受網は、扱胴の回転方向に対する上手側端部、下手側端部及び、中間部の夫々が、脱穀装置本体に備えられた支持部材に支持され、扱室内で位置固定状態で設けられていた（例えば、特許文献１参照）。 The handling chamber of the threshing device is provided with a handling cylinder that is driven and rotated, and an arc-shaped receiving net is provided along the outer peripheral portion of the handling cylinder. Conventionally, in the receiving net, the upper end, the lower end, and the intermediate portion in the rotation direction of the handling cylinder are supported by the support member provided in the threshing device main body, and the position is fixed in the handling chamber. It was provided in a state (see, for example, Patent Document 1).

特開２０１７－５１１６７号公報Japanese Unexamined Patent Publication No. 2017-51167

コンバインにおいて圃場内で刈取作業する場合、作物の種類が常に一定であるとは限らない。そして、作物の種類が異なると、刈取作業に伴って脱穀装置に搬入される作物の量が大きく異なることがある。このように、作物の量が多くなると、扱胴と受網との協働により扱き処理を実行するとき、扱胴と受網との間で作物が滞留し勝ちになり、効率のよい脱穀処理が行えなくなるおそれがある。又、扱胴に対する駆動負荷が過大になる等のおそれもある。 When harvesting in a field in a combine harvester, the type of crop is not always constant. If the types of crops are different, the amount of crops carried into the threshing device during the cutting operation may be significantly different. In this way, when the amount of crops is large, when the handling process is executed in cooperation with the handling cylinder and the receiving net, the crops tend to stay between the handling cylinder and the receiving net, and the efficient threshing process. May not be possible. In addition, there is a risk that the drive load on the handling cylinder will be excessive.

そこで、上記従来構成では、受網が位置固定状態で備えられているので、刈取対象となる作物の種類が異なり、脱穀装置に搬入される作物の量が予め設定されている量よりも多くなる場合には、良好な脱穀作業を行うために異なる仕様の受網に取り換える作業が必要となっていた。しかし、このような受網の交換作業は、大型で大重量の装置である受網を取り外したり、再度、取り付けたりする等、煩わしい大掛かりな作業となっていた。 Therefore, in the above-mentioned conventional configuration, since the receiving net is provided in a fixed position, the types of crops to be harvested are different, and the amount of crops carried into the threshing device is larger than the preset amount. In some cases, it was necessary to replace the net with different specifications in order to perform good threshing work. However, such replacement work of the receiving net is a troublesome and large-scale work such as removing and reattaching the receiving net, which is a large and heavy device.

そこで、刈取対象となる作物の種類が変更される場合であっても、煩わしさの少ない状態で良好な脱穀作業を行えるようにすることが望まれていた。 Therefore, it has been desired to enable good threshing work with less trouble even when the type of crop to be harvested is changed.

本発明に係るコンバインの特徴構成は、扱室内で刈取穀稈を脱穀処理する脱穀装置が備えられ、前記扱室に、前後軸芯周りで回転する扱胴と、前記扱胴の外周部に沿う状態で円弧状に設けられた受網とが備えられ、前記受網に、１つあるいは周方向に沿って分割された複数の受網構成体が備えられ、前記受網構成体における前記扱胴の周方向に沿う一方側端部を位置保持した状態で、前記受網構成体における前記周方向に沿う他方側端部と前記扱胴の外端部の回転軌跡との間隔を変更調節可能な位置調節機構が備えられており、前記受網構成体が、前記扱胴の回転軸芯方向に沿って分割された複数の分割受網を有しており、前記位置調節機構に、複数の分割受網夫々の前記他方側端部を一体移動可能に支持するとともに、前記扱室の前記回転軸芯方向の一端側箇所から他端側箇所に亘って延びる棒状部材と、前記棒状部材の前記回転軸芯方向の両側端部を複数の位置に位置固定可能な位置変更部材と、が備えられている点にある。 The characteristic configuration of the combine according to the present invention is provided with a grain removal device for removing grain from the cut grain in the handling chamber, and the handling chamber is provided with a handling cylinder that rotates around the front-rear axis and an outer peripheral portion of the handling cylinder. A receiving net provided in an arc shape in the state is provided, and the receiving net is provided with one or a plurality of receiving net configurations divided along the circumferential direction, and the handling cylinder in the receiving net structure is provided. The distance between the other side end portion along the circumferential direction and the rotation locus of the outer end portion of the handling cylinder in the receiving net configuration can be changed and adjusted while the position of the one side end portion along the circumferential direction is held. A position adjusting mechanism is provided, and the receiving net configuration has a plurality of divided receiving nets divided along the rotation axis direction of the handling cylinder, and the position adjusting mechanism has a plurality of divisions. A rod-shaped member extending from one end side portion in the rotation axis direction of the handling chamber to the other end side portion while supporting the other side end portion of each of the receiving nets so as to be integrally movable, and the rotation of the rod-shaped member. It is a point that a position changing member capable of fixing the positions of both end portions in the axial center direction to a plurality of positions is provided .

扱室に搬入される作物は、回転する扱胴によって持ち回りしながら周方向に移送される。そして、扱胴と受網との協働による扱き処理作用領域に至ると、扱胴と受網とによって揉まれながら扱き処理されるが、受網構成体と扱胴の外端部の回転軌跡との間隔が、作物の量に対して狭すぎると、扱き処理が効率よく行えないおそれがある。 The crops brought into the handling room are transported in the circumferential direction while being rotated by a rotating handling cylinder. Then, when the handling processing action area is reached by the cooperation between the handling cylinder and the receiving net, the handling processing is performed while being rubbed by the handling cylinder and the receiving net. If the distance between the and is too narrow with respect to the amount of crops, the handling process may not be performed efficiently.

そこで、本発明では、位置調節機構によって、受網に備えられる受網構成体の一方側端部を位置保持した状態で、受網構成体の他方側端部と扱胴の外端部の回転軌跡との間隔を変更させることができる。例えば、刈取対象となる作物の種類が変更されて、扱室に搬入される作物の量が多くなるような場合には、間隔を広げるように変更することによって、作物が扱胴と受網との間で滞留するおそれが少なくなり、扱き処理を効率よく行うことができる。又、作物の量が少なくなる場合には、間隔を狭くするように変更することによって、作物が扱胴と受網との間で有効に揉まれて、扱き処理を効率よく行うことができる。 Therefore, in the present invention, the position adjusting mechanism holds the position of one end of the receiving net configuration provided in the receiving net, and the other side end of the receiving net configuration and the outer end of the handling cylinder are rotated. The distance from the locus can be changed. For example, if the type of crop to be harvested is changed and the amount of crops brought into the handling room increases, the crops can be changed to a handling barrel and a net by changing the interval. The risk of staying between them is reduced, and the handling process can be performed efficiently. Further, when the amount of crops is small, the crops can be effectively kneaded between the handling cylinder and the receiving net by changing the interval so as to be narrowed, and the handling process can be efficiently performed.

位置調節機構は、受網構成体の他方側端部の位置を変更させるものであり、受網全体を交換する等の大掛かりな作業は不要であり、調節操作は煩わしさの少ない状態で行うことができる。 The position adjustment mechanism changes the position of the other end of the receiving net configuration, does not require large-scale work such as replacing the entire receiving net, and the adjustment operation should be performed with less trouble. Can be done.

従って、刈取対象となる作物の種類が変更される場合であっても、煩わしさの少ない状態で良好な脱穀作業を行えるようにすることが可能となった。
また、受網構成体が複数の分割受網に分割されているので、受網構成体が一体的に構成される場合に比べて分割受網は小型軽量であり、受網の清掃や交換等のメンテナンス作業を行う際に、労力負担が軽減される。
そして、このように複数の分割受網が備えられる場合であっても、位置変更部材により棒状部材の両側端部を位置変更させることにより、複数の分割受網夫々の他方側端部を一括して位置変更させることが可能となり、能率よく作業を行える。 Therefore, even when the type of crop to be harvested is changed, it is possible to perform good threshing work with less trouble.
Further, since the receiving net configuration is divided into a plurality of divided receiving nets, the divided receiving net is smaller and lighter than the case where the receiving net configuration is integrally configured, and the receiving net can be cleaned or replaced. The labor burden is reduced when performing maintenance work.
Even when a plurality of split receiving nets are provided in this way, by changing the positions of both end portions of the rod-shaped member by the position changing member, the other side end portions of the plurality of split receiving nets are collectively combined. It is possible to change the position, and work can be done efficiently.

本発明においては、前記他方側端部は、前記扱胴の回転方向における上手側に対応する上手側端部、又は、前記扱胴の回転方向における下手側に対応する下手側端部のいずれかであると好適である。 In the present invention, the other side end portion is either an upper side end portion corresponding to the upper side in the rotation direction of the handling cylinder or a lower side end portion corresponding to the lower side in the rotation direction of the handling cylinder. Is preferable.

本構成によれば、受網構成体の上手側端部を位置変更させると、扱胴と受網との協働による扱き処理作用域の入口付近における作物の滞留を回避させることが可能である。一方、受網構成体の下手側端部を位置変更させると、扱胴と受網との協働による扱き処理作用域の入口付近で、作物の滞留し勝ちになることがあっても、回転方向下手側が位置変更することで、下手側に作物を移送させ易くなり、全体として滞留を回避させることが可能である。 According to this configuration, by changing the position of the upper end of the receiving net configuration, it is possible to avoid the retention of crops near the entrance of the handling processing working area due to the cooperation between the handling cylinder and the receiving net. .. On the other hand, if the position of the lower end of the receiving net configuration is changed, the crop will rotate near the entrance of the handling processing area due to the cooperation between the handling cylinder and the receiving net, even if the crops may stay and win. By changing the position on the lower side of the direction, it becomes easier to transfer the crop to the lower side, and it is possible to avoid stagnation as a whole.

本発明においては、前記位置調節機構は、前記間隔のうち前記他方側端部の前記回転方向の直後における間隔が、前記間隔のうち前記他方側端部の前記回転方向の直前における間隔よりも径方向内側に狭くならないように、前記他方側端部の位置を変更調節すると好適である。 In the present invention, in the position adjusting mechanism, the interval immediately after the other end of the interval in the rotational direction is larger than the interval immediately before the other end of the interval in the rotational direction. It is preferable to change and adjust the position of the other side end so as not to narrow inward in the direction.

本構成によれば、受網構成体の他方側端部の回転方向の直後における間隔が、回転方向の直前における間隔よりも狭くなると、扱胴によって持ち回りする作物が、当該箇所において引っ掛かり堆積するおそれがある。そこで、回転方向の直後における間隔が、回転方向の直前における間隔よりも狭くならないように位置調節することで、作物が引っ掛かり堆積する不利を回避しながら、作物の量に応じた位置変更調節が可能となる。 According to this configuration, if the distance immediately after the rotation direction of the other end of the receiving net structure is narrower than the distance immediately before the rotation direction, the crops carried by the handling cylinder may be caught and accumulated at the location. There is. Therefore, by adjusting the position so that the interval immediately after the rotation direction is not narrower than the interval immediately before the rotation direction, it is possible to adjust the position change according to the amount of crop while avoiding the disadvantage that the crop is caught and accumulated. It becomes.

コンバインの全体側面図である。It is an overall side view of a combine. 脱穀装置の支持構造を示す側面図である。It is a side view which shows the support structure of a threshing apparatus. 側壁部を外した状態の脱穀装置の側面図である。It is a side view of the threshing apparatus with the side wall part removed. 脱穀装置の縦断正面図である。It is a vertical sectional front view of a threshing device. 受網の側面図である。It is a side view of a receiving net. 受網構成体の位置変更状態を示す正面図である。It is a front view which shows the position change state of the receiving net structure. 位置変更部材配設部の一部切り欠き側面図である。It is a partial notch side view of the position change member arrangement part. 別実施形態の受網構成体の位置変更状態を示す正面図である。It is a front view which shows the position change state of the network receiving structure of another embodiment. 別実施形態の受網構成体の位置変更状態を示す正面図である。It is a front view which shows the position change state of the network receiving structure of another embodiment. 別実施形態の受網構成体の位置変更状態を示す正面図である。It is a front view which shows the position change state of the network receiving structure of another embodiment. 別実施形態の受網構成体の位置変更状態を示す正面図である。It is a front view which shows the position change state of the network receiving structure of another embodiment.

以下、図面に基づいて、本発明に係るコンバインの実施形態を普通型コンバインに適用した場合について説明する。 Hereinafter, a case where the embodiment of the combine according to the present invention is applied to a conventional combine will be described with reference to the drawings.

〔全体構成〕
図１に示すように、コンバインは、作物を刈り取って後方に搬送する刈取搬送部１、キャビン２にて覆われた運転部３、刈取搬送部１にて刈り取られた作物の脱穀処理を行う脱穀装置４、その脱穀装置４にて脱穀処理されて得られた穀粒を貯留する穀粒タンク５、動力源としてのエンジン６を有する原動部７、操向不能で且つ回転駆動される左右一対の前車輪８と、操向操作可能な左右一対の後車輪９とを備えている。穀粒タンク５の左側には、貯留している穀粒を機体外部に搬送するスクリューコンベア式の穀粒排出装置Ｈが備えられている。〔overall structure〕
As shown in FIG. 1, the combine harvests and threshes the crops cut by the cutting and transporting unit 1, the driving section 3 covered with the cabin 2, and the cutting and transporting section 1 that cuts and transports the crops to the rear. A device 4, a grain tank 5 for storing grains obtained by threshing by the threshing device 4, a driving unit 7 having an engine 6 as a power source, and a pair of left and right unsteerable and rotationally driven. It includes a front wheel 8 and a pair of left and right rear wheels 9 that can be steered. On the left side of the grain tank 5, a screw conveyor type grain discharge device H for transporting stored grains to the outside of the machine body is provided.

この実施形態で、機体の前後方向を定義するときは、作業状態における機体進行方向に沿って定義する。すなわち、図１に符号（Ｆ）で示す方向が機体前側、図１に符号（Ｂ）で示す方向が機体後側である。 In this embodiment, when the front-back direction of the machine is defined, it is defined along the traveling direction of the machine in the working state. That is, the direction indicated by the reference numeral (F) in FIG. 1 is the front side of the aircraft, and the direction indicated by the reference numeral (B) in FIG. 1 is the rear side of the aircraft.

刈取搬送部１は、機体の前部において、昇降用アクチュエータとしての刈取昇降シリンダ１０により横向き支点Ｐ１周りで駆動昇降自在に支持されている。刈取搬送部１は、植立する作物を刈り取り、刈り取った作物を刈幅方向の中央部に寄せ集める刈取ヘッダ１１と、刈り取られて中央に寄せ集められた作物を機体後方の脱穀装置４に向けて搬送するフィーダ１２とを備えている。 The cutting transport unit 1 is supported on the front portion of the machine body by a cutting lifting cylinder 10 as a lifting actuator so as to be driven and lifted around the lateral fulcrum P1. The cutting transport unit 1 cuts the crops to be planted, and directs the cutting header 11 that gathers the cut crops to the center in the cutting width direction and the crops that have been cut and gathered in the center toward the threshing device 4 at the rear of the machine. It is provided with a feeder 12 for transporting.

刈取ヘッダ１１には、刈取対象となる作物の穂先側を後方に向けて掻込む回転リール１３、作物の株元を切断して刈り取るバリカン型の刈刃１４、刈り取った作物を刈幅方向の中央部に寄せ集める横送りオーガ１５等が備えられている。 The cutting header 11 includes a rotary reel 13 that scrapes the tip side of the crop to be cut backward, a clipper-shaped cutting blade 14 that cuts and cuts the root of the crop, and a center of the cut crop in the cutting width direction. It is equipped with a horizontal feed auger 15 and the like that are gathered together in the section.

フィーダ１２は、図示はしないが、筒状の搬送ケース１６内に、前後の輪体にわたって複数の無端回動チェーンが巻回張設され、無端回動チェーンにわたり係止搬送体を架設した搬送コンベアが備えられ、刈取ヘッダ１１から受け渡された作物を後方上方に向けて搬送するように構成されている。 Although not shown, the feeder 12 is a conveyor in which a plurality of endless rotating chains are wound and stretched over the front and rear wheels in a cylindrical transport case 16, and a locking transport body is erected over the endless rotating chains. Is provided, and is configured to transport the crop delivered from the cutting header 11 toward the rear and upper direction.

脱穀装置４は、機体左右方向中央部の低い位置にあり、脱穀装置４の上方において、脱穀装置４にて脱粒処理されたあとの穀粒を貯留する穀粒タンク５と、動力源としてのエンジン６とが備えられている。具体的には、機体前部側に穀粒タンク５が位置し、機体後部側にエンジン６が位置する状態で、穀粒タンク５とエンジン６とが前後方向に並ぶ方向で備えられている。脱穀装置４の左右両側外方側が外装カバー１７によって覆われている。詳述はしないが、外装カバー１７は、手動操作により横側外方の揺動開放可能に構成されている。 The threshing device 4 is located at a low position in the central part in the left-right direction of the machine, and above the threshing device 4, a grain tank 5 for storing grains after being threshed by the threshing device 4 and an engine as a power source. 6 and are provided. Specifically, the grain tank 5 is located on the front side of the machine body, and the engine 6 is located on the rear side of the machine body, and the grain tank 5 and the engine 6 are provided in a direction of arranging in the front-rear direction. The outer sides of the left and right sides of the threshing device 4 are covered with an exterior cover 17. Although not described in detail, the exterior cover 17 is configured to be able to swing open laterally and outwardly by manual operation.

機体下部には、機体前後方向に延びる左右一対の主フレーム２０が備えられている。左右の主フレーム２０は機体全体を支持しており、主フレーム２０が機体フレームに相当する。左右の主フレーム２０は、断面形状が略Ｃ形のチャンネル材にて構成され、機体前部から機体後部にわたって前後方向に長く設けられている。左右の主フレーム２０よりも低い位置に左右の前車輪８及び左右の後車輪９の車軸８ａ，９ａが備えられている。左右の前車輪８及び左右の後車輪９は、左右の主フレーム２０夫々の機体左右方向外方側に位置する状態で備えられ、左右の主フレーム２０は左右の前車輪８及び左右の後車輪９に支持されている。 A pair of left and right main frames 20 extending in the front-rear direction of the machine body are provided in the lower part of the machine body. The left and right main frames 20 support the entire body, and the main frame 20 corresponds to the body frame. The left and right main frames 20 are made of a channel material having a substantially C-shaped cross section, and are provided long in the front-rear direction from the front part of the machine body to the rear part of the machine body. The left and right front wheels 8 and the left and right rear wheel 9 axles 8a and 9a are provided at positions lower than the left and right main frames 20. The left and right front wheels 8 and the left and right rear wheels 9 are provided so as to be located on the left and right outer sides of the aircraft of each of the left and right main frames 20, and the left and right main frames 20 are the left and right front wheels 8 and the left and right rear wheels. It is supported by 9.

〔脱穀装置〕
次に、脱穀装置４について説明する。
図２，３に示すように、脱穀装置４には、脱粒処理を行う脱穀部２１と、脱穀部２１による脱粒処理が行われた後の処理物を選別処理する選別部２２とが備えられている。選別部２２は、詳述はしないが、周囲が壁部にて囲われた内部の空間に、脱粒処理が行われた後の処理物を揺動移送しながら穀粒、枝付き穀粒等の二番物、及び、排ワラ屑等に選別するための選別処理部２４（図３参照）が備えられている。図１に示すように、脱穀装置４の機体後方側には、脱穀装置４にて脱穀処理された後の脱穀処理物（排ワラ屑等）を細断処理する細断処理装置２５が備えられている。 [Threshing device]
Next, the threshing device 4 will be described.
As shown in FIGS. 2 and 3, the threshing device 4 is provided with a threshing unit 21 that performs a threshing process and a sorting unit 22 that sorts the processed material after the threshing process by the threshing unit 21. There is. Although not described in detail, the sorting unit 22 swings and transfers the processed product after the threshing treatment to the internal space surrounded by the wall portion, such as grains, grains with branches, and the like. A sorting processing unit 24 (see FIG. 3) for sorting the second product, waste straw waste, and the like is provided. As shown in FIG. 1, on the rear side of the machine of the threshing device 4, a shredding processing device 25 for shredding the threshed product (waste straw waste, etc.) after the threshing process by the threshing device 4 is provided. ing.

脱穀部２１は、機体前部側が上下方向に幅狭であり、機体後部側ほど上下方向に幅広となるように構成されている。そして、下端部が前後方向に沿って略水平姿勢で延びる主フレーム２０に載置されている。従って、脱穀部２１の上端部は後部側ほど高い位置になる後上がり傾斜姿勢となっている。 The threshing section 21 is configured such that the front side of the machine body is narrow in the vertical direction and the rear side of the machine body is wide in the vertical direction. Then, the lower end portion is placed on the main frame 20 extending in a substantially horizontal posture along the front-rear direction. Therefore, the upper end portion of the threshing portion 21 is in a rearward tilting posture in which the position becomes higher toward the rear side.

図４に示すように、脱穀部２１の内部に、刈取穀稈の扱き処理が行われる扱室２３が形成されている。扱室２３には、機体前後方向に沿う軸芯Ｘ周りで回転する扱胴３１が備えられ、扱胴３１の下方側に、扱胴３１の外周部に沿うように正面視で略円弧状に形成された受網３２が備えられている。扱室２３では、機体前部側から刈取穀稈が投入され、扱胴３１と受網３２とによって扱き処理（脱粒処理）が行われる。扱胴３１は、回転軸芯Ｘが機体後側ほど順次高くなる斜め姿勢となるように後上がり傾斜姿勢で配備されている。受網３２も扱胴３１と同様に、後上がり傾斜姿勢で配備されている。扱胴３１は、周方向に間隔をあけて、回転軸芯方向に沿って延びる複数の棒状部材１８が備えられ、各棒状部材１８に径方向外方に突出するように複数の棒状の扱き歯１９を備えた構成となっている。 As shown in FIG. 4, a handling chamber 23 for handling the cut grain culm is formed inside the threshing section 21. The handling chamber 23 is provided with a handling cylinder 31 that rotates around an axis X along the front-rear direction of the machine, and is formed in a substantially arc shape in a front view along the outer peripheral portion of the handling cylinder 31 on the lower side of the handling cylinder 31. The formed receiving net 32 is provided. In the handling chamber 23, cut grain culms are thrown in from the front side of the machine body, and a handling process (threshing process) is performed by the handling cylinder 31 and the receiving net 32. The handling cylinder 31 is arranged in a rearward tilting posture so that the rotary shaft core X is in a slanted posture in which the rotation shaft core X is gradually raised toward the rear side of the machine body. Similar to the handling cylinder 31, the receiving net 32 is also deployed in a backward tilted posture. The handling cylinder 31 is provided with a plurality of rod-shaped members 18 extending along the rotation axis center direction at intervals in the circumferential direction, and a plurality of rod-shaped handling teeth so as to project outward in the radial direction to each rod-shaped member 18. It has a configuration provided with 19 .

左側に位置する左側壁部２７は、図２に示すように、機体前部側が上下方向に幅狭であり、機体後部側ほど上下方向に幅広となるように側面視略三角形状に形成された下部側壁部３３と、前後方向に沿って略同一幅の上部側壁部３４と、機体後側に位置して上下方向に幅広の後部側壁部３５が備えられている。図示していないが、右側壁部２６は、壁部全体を覆う壁面を有しており、下端部が主フレーム２０の上面に載置された状態で、主フレーム２０にボルト連結されている。 As shown in FIG. 2, the left wall portion 27 located on the left side is formed in a substantially triangular shape in a side view so that the front side of the machine body is narrow in the vertical direction and the rear side of the machine body is wide in the vertical direction. A lower side wall portion 33, an upper side wall portion 34 having substantially the same width along the front-rear direction, and a rear side wall portion 35 located on the rear side of the machine body and wide in the vertical direction are provided. Although not shown, the right side wall portion 26 has a wall surface covering the entire wall portion, and is bolted to the main frame 20 with the lower end portion mounted on the upper surface of the main frame 20.

左側壁部２７のうち下部側壁部３３及び後部側壁部３５は、下端部が主フレーム２０の上面に載置された状態で、主フレーム２０にボルト連結されている。上部側壁部３４は、扱胴３１の回転軸芯方向に沿って複数（４個）に分割された構成となっており、４個の分割壁３７により構成されている。分割壁３７は夫々、横方向に沿って着脱可能に支持されている。 Of the left side wall portion 27, the lower side wall portion 33 and the rear side wall portion 35 are bolted to the main frame 20 with the lower end portion mounted on the upper surface of the main frame 20. The upper side wall portion 34 is divided into a plurality (4 pieces) along the rotation axis direction of the handling cylinder 31, and is composed of four divided walls 37. Each of the dividing walls 37 is detachably supported along the lateral direction.

図４に示すように、右側壁部２６及び左側壁部２７の上部には、扱胴３１の回転軸芯方向に沿って延びる側壁上端フレーム３８，３９が備えられている。左右の側壁上端フレーム３８，３９は、脱穀装置４の前部から後端部に亘って長く延びている。 As shown in FIG. 4, upper portions of the right side wall portion 26 and the left side wall portion 27 are provided with side wall upper end frames 38 and 39 extending along the rotation axis direction of the handling cylinder 31. The left and right side wall upper end frames 38 and 39 extend long from the front end to the rear end portion of the threshing device 4.

〔受網〕
受網３２が、扱胴３１の回転軸芯方向に沿って分割された複数の分割受網４０により構成されている。分割受網４０は、横方向に沿って着脱可能に支持されている。受網３２は、扱胴３１の回転軸芯方向に沿って左側壁部２７における上部側壁部３４の分割壁３７と同じ位置で分割されており、且つ、同じ方向に、すなわち、機体左側に向けて着脱可能である。 [Receiving net]
The receiving net 32 is composed of a plurality of divided receiving nets 40 divided along the rotation axis direction of the handling cylinder 31. The split receiving net 40 is detachably supported along the lateral direction. The receiving net 32 is divided at the same position as the dividing wall 37 of the upper side wall portion 34 in the left side wall portion 27 along the rotation axis core direction of the handling cylinder 31, and is divided in the same direction, that is, toward the left side of the machine body. It is removable.

図３に示すように、受網３２は、４個の分割壁３７に対応する箇所に設けられ、４個の分割受網４０が備えられている。受網３２は、扱胴３１の外端部の回転軌跡に略沿うように、正面視で略円弧状に設けられている。図５に示すように、前後に隣接する分割受網４０同士の間には、左右の側壁上端フレーム３８，３９同士に亘って延びる仕切り部材４１が設けられている。 As shown in FIG. 3, the receiving net 32 is provided at a position corresponding to the four divided receiving nets 37, and is provided with the four divided receiving nets 40. The receiving net 32 is provided in a substantially arc shape in front view so as to substantially follow the rotation locus of the outer end portion of the handling cylinder 31. As shown in FIG. 5, a partition member 41 extending over the left and right side wall upper end frames 38 and 39 is provided between the split receiving nets 40 adjacent to each other in the front-rear direction.

各分割受網４０は、扱胴３１の周方向に沿って分割された２個の受網構成体４２，４３により構成されている。右側の受網構成体４２は、略円弧状のガイド部材４４によって受止め案内され、且つ、右側端部が右側の側壁上端フレーム３８に当て付ける状態で支持されている。そして、左側端部が左右の受網構成体４２，４３の接続箇所に設けられた中継ブラケット４５にボルト連結されている。左側の受網構成体４３は、右側端部が中継ブラケット４５にボルト連結され、左側端部が左側の側壁上端フレーム３９にボルト連結されている。 Each split receiving net 40 is composed of two receiving net constituents 42, 43 divided along the circumferential direction of the handling cylinder 31. The right receiving net configuration 42 is received and guided by a substantially arc-shaped guide member 44, and is supported in a state where the right end portion is in contact with the right side wall upper end frame 38. Then, the left end portion is bolted to the relay bracket 45 provided at the connection portion of the left and right receiving network configurations 42 and 43. The right end of the left side receiving network configuration 43 is bolted to the relay bracket 45, and the left end is bolted to the left side wall upper end frame 39.

〔位置調節機構〕
２個の受網構成体４２，４３のうち、左側に位置する受網構成体４２は、扱胴３１の回転方向における上手側に対応する上手側端部４６と扱胴３１の外端部の回転軌跡との間隔を変更調節可能に構成されている。そして、左側の受網構成体４２について、扱胴３１の回転方向における下手側に対応する下手側端部４７（周方向に沿う一方側端部の一例）を位置保持した状態で、扱胴３１の回転方向における上手側に対応する上手側端部４６（周方向に沿う他方側端部の一例）と扱胴３１の外端部（扱き歯１９の外端部）の回転軌跡との間隔を変更調節可能な位置調節機構５０が備えられている。 [Position adjustment mechanism]
Of the two receiving net configurations 42, 43, the receiving net configuration 42 located on the left side is the upper end portion 46 corresponding to the upper side in the rotation direction of the handling cylinder 31 and the outer end portion of the handling cylinder 31. It is configured so that the distance from the rotation locus can be changed and adjusted. Then, with respect to the left net receiving structure 42, the handling cylinder 31 is held in a state where the lower side end portion 47 (an example of one side end portion along the circumferential direction) corresponding to the lower side in the rotation direction of the handling cylinder 31 is held. The distance between the good side end 46 (an example of the other end along the circumferential direction) corresponding to the good side in the rotational direction and the rotation locus of the outer end of the handling cylinder 31 (outer end of the handling tooth 19). A position adjusting mechanism 50 that can be changed and adjusted is provided.

位置調節機構５０には、複数の分割受網４０夫々の上手側端部を一体移動可能に支持するとともに、扱胴３１の回転軸芯方向の一端側箇所から他端側箇所に亘って延びる棒状部材５１と、棒状部材５１の回転軸芯方向の両側端部を複数の位置に選択的に位置固定可能な位置変更部材５２とが備えられている。 The position adjusting mechanism 50 supports the upper end portions of each of the plurality of split receiving nets 40 so as to be integrally movable, and has a rod shape extending from one end side portion in the rotation axis direction of the handling cylinder 31 to the other end side portion. A member 51 and a position changing member 52 capable of selectively fixing the positions of both end portions of the rod-shaped member 51 in the direction of the axis of rotation to a plurality of positions are provided.

以下、位置調節機構５０について説明を加える。
図４，５に示すように、左側の受網構成体４３（図４では正面視であるから右に位置している）は、下手側端部４７は中継ブラケット４５にボルト連結にて固定されている。左側の受網構成体４３の上手側端部４６には、下向き開放状の断面Ｕ字状の支持部材５３が一体的に備えられている。この支持部材５３は、分割受網４０における扱胴３１の回転方向に沿う全幅に亘って延びている。支持部材５３の下側の凹入部に入り込み係合する状態で、扱胴３１の回転方向に沿って脱穀装置４の前後幅の略全範囲に亘って長く延びる棒状部材５１が備えられている。 Hereinafter, the position adjusting mechanism 50 will be described.
As shown in FIGS. 4 and 5, in the network receiving structure 43 on the left side (located on the right side because it is viewed from the front in FIG. 4), the lower end portion 47 is fixed to the relay bracket 45 by bolt connection. ing. The upper end portion 46 of the net receiving structure 43 on the left side is integrally provided with a support member 53 having a U-shaped cross section with a downward open shape. The support member 53 extends over the entire width along the rotation direction of the handling cylinder 31 in the split receiving net 40. A rod-shaped member 51 that extends long along the rotational direction of the handling cylinder 31 over substantially the entire range of the front-rear width of the threshing device 4 is provided in a state of entering and engaging with the recessed portion on the lower side of the support member 53.

上述したように受網は、扱胴３１の回転軸芯方向に沿って４分割されており、左側の受網構成体４３についても、回転軸芯方向に沿って４個の分割受網４０に分割されている。 As described above, the receiving net is divided into four along the rotation axis core direction of the handling cylinder 31, and the left receiving net configuration 43 is also divided into four divided receiving nets 40 along the rotation axis core direction. It is divided.

図５に示すように、棒状部材５１は、円筒状の棒材からなり、受網３２における前端側、すなわち、回転軸芯方向に沿って並ぶ４個の分割受網の最前端側に位置する前壁部２９と、受網における後端側、すなわち、回転軸芯方向に沿って並ぶ４個の分割受網の最後端側に位置する後壁部２８とに亘って長く延びている。 As shown in FIG. 5, the rod-shaped member 51 is made of a cylindrical rod material and is located on the front end side of the receiving net 32, that is, on the foremost end side of the four divided receiving nets arranged along the rotation axis direction. It extends long over the front wall portion 29 and the rear end side of the receiving net, that is, the rear wall portion 28 located on the rearmost end side of the four divided receiving nets arranged along the rotation axis direction.

図６，７に示すように、棒状部材５１の両側端部に、板面が棒状部材５１の長手方向と直交する状態で板状の位置変更部材５２が溶接にて一体連結されている。位置変更部材５２には、棒状部材５１を挟んで上下両側に位置する状態で一対のボルト挿通孔が形成されている。そして、前壁部２９及び後壁部２８には、夫々、各ボルト挿通孔に対応する位置に調節孔５６が形成されている。前壁部２９及び後壁部２８に形成される調節孔５６は、扱胴３１の径方向に沿って位置を異ならせた状態で複数形成されている。 As shown in FIGS. 6 and 7, a plate-shaped position changing member 52 is integrally connected to both end portions of the rod-shaped member 51 by welding with the plate surface orthogonal to the longitudinal direction of the rod-shaped member 51. The position changing member 52 is formed with a pair of bolt insertion holes so as to be located on both upper and lower sides of the rod-shaped member 51. Adjustment holes 56 are formed in the front wall portion 29 and the rear wall portion 28 at positions corresponding to the bolt insertion holes, respectively. A plurality of adjusting holes 56 formed in the front wall portion 29 and the rear wall portion 28 are formed in a state where the positions are different along the radial direction of the handling cylinder 31.

ボルト挿通孔といずれかの調節孔５６とに亘りボルト５７を挿通してナット５８で締結することにより、棒状部材５１が前壁部２９及び後壁部２８に位置固定状態で連結することができる。複数の調節孔５６のうち、最も扱胴３１に近い側の調節孔５６を通してボルト連結すると、左側の受網構成体４３の上手側端部４６における扱胴回転方向直前における、扱胴３１の外端部の回転軌跡と外周側の部材（天板）との間隔と、左側の受網構成体４３の上手側端部４６における扱胴回転方向直後における扱胴３１の外端部の回転軌跡と受網構成体４３との間隔とが略等しくなる（図６の仮想線参照）。 By inserting the bolt 57 through the bolt insertion hole and any of the adjustment holes 56 and fastening the bolt 57 with the nut 58, the rod-shaped member 51 can be connected to the front wall portion 29 and the rear wall portion 28 in a fixed position. .. When bolted through the adjustment hole 56 on the side closest to the handling cylinder 31 among the plurality of adjusting holes 56, the outside of the handling cylinder 31 immediately before the handling cylinder rotation direction at the upper end 46 of the net receiving structure 43 on the left side. The distance between the rotation locus of the end portion and the member (top plate) on the outer peripheral side, and the rotation locus of the outer end portion of the handling cylinder 31 immediately after the handling cylinder rotation direction at the upper end portion 46 of the left net receiving structure 43. The distance from the network configuration 43 is substantially equal (see the virtual line in FIG. 6).

そして、扱室２３に搬入される作物の量が多くなる作業形態に変更する場合等においては、最も扱胴３１に近い側の調節孔５６とは異なる調節孔５６にボルト５７を付け替えることにより、左側の受網構成体４３が下手側端部４７を中心にして上手側端部４６が扱胴３１から離れる方向に揺動して、扱胴３１の外端部の回転軌跡と受網構成体４３との間隔を広くさせることができる（図６の実線参照）。このとき、左側の受網構成体４３は少し撓み変形することになるが、周方向の長さに対して撓み変形する揺動量は小さいので変形を許容することができる。その結果、上手側端部４６の回転方向直後における間隔が、上手側端部４６の回転方向直前における間隔よりも径方向内側に狭くならないように、上手側端部４６の位置を変更調節することができる。 Then, when changing to a work mode in which the amount of crops carried into the handling chamber 23 is large, the bolt 57 is replaced with the adjusting hole 56 different from the adjusting hole 56 on the side closest to the handling cylinder 31. The left side receiving net configuration 43 swings in a direction away from the handling cylinder 31 with the upper side end portion 46 centering on the lower side end portion 47, and the rotation locus of the outer end portion of the handling cylinder 31 and the receiving net configuration The distance from 43 can be widened (see the solid line in FIG. 6). At this time, the net receiving structure 43 on the left side is slightly bent and deformed, but the amount of swing that is bent and deformed with respect to the length in the circumferential direction is small, so that the deformation can be tolerated. As a result, the position of the upper end portion 46 is changed and adjusted so that the interval immediately after the rotation direction of the upper end portion 46 does not become narrower in the radial direction than the interval immediately before the rotation direction of the upper end portion 46. Can be done.

上述したような、棒状部材５１、位置変更部材５２、前壁部２９及び後壁部２８に形成された複数の調節孔５６、ボルト５７・ナット５８等により位置調節機構５０が構成されている。尚、ナット５８は、位置変更部材５２におけるボルト挿通孔５５の扱室内方側箇所に溶接固定されている。この構成による左側の受網構成体４３の位置調節作業は、前壁部２９側での作業と、後壁部２８側での作業とを別々に行うことにより一人の作業者であっても行うことができる。 As described above, the position adjusting mechanism 50 is composed of a rod-shaped member 51, a position changing member 52, a plurality of adjusting holes 56 formed in the front wall portion 29 and the rear wall portion 28, bolts 57, nuts 58, and the like. The nut 58 is welded and fixed to a portion of the position changing member 52 on the side of the handling chamber of the bolt insertion hole 55. The position adjustment work of the left side receiving net configuration 43 by this configuration can be performed even by one worker by separately performing the work on the front wall portion 29 side and the work on the rear wall portion 28 side. be able to.

〔別実施形態〕
（１）上記実施形態では、周方向に沿って分割された２つの受網構成体４２，４３が備えられ、そのうちの扱胴回転方向上手側に位置する一方の受網構成体４３について、回転方向上手側端部４６と扱胴３１の外端部の回転軌跡との間隔を変更調節可能に構成したものを示したが、この構成にかえて、以下の（１－１）～（１－４）に記載するような種々の構成を採用してもよい。尚、いずれの場合にも、位置変更される箇所の回転方向の直後における間隔が、回転方向の直前における間隔よりも径方向内側に狭くならないようにするとよい。 [Another Embodiment]
(1) In the above embodiment, two receiving net constituents 42, 43 divided along the circumferential direction are provided, and one of the receiving net constituents 43 located on the upper side in the handling cylinder rotation direction rotates. The following configuration is shown in which the distance between the end portion 46 on the upper side in the direction and the rotation locus of the outer end portion of the handling cylinder 31 can be changed and adjusted. Various configurations as described in 4) may be adopted. In any case, it is preferable that the interval immediately after the rotation direction of the position to be changed is not narrower in the radial direction than the interval immediately before the rotation direction.

（１－１）図８に示すように、受網３２が分割されることなく周方向に沿って一連に連なる構成の受網構成体４３にて構成され、その受網構成体４３について、例えば、回転方向下手側端部４７を位置固定状態とし、回転方向上手側端部４６と扱胴３１の外端部の回転軌跡との間隔を変更調節可能に構成したもの。 (1-1) As shown in FIG. 8, the receiving net 32 is composed of a receiving net constituent 43 having a structure in which the receiving net 32 is continuously connected in a series along the circumferential direction without being divided, and the receiving net constituent 43 thereof, for example. The position of the lower end portion 47 in the rotation direction is fixed, and the distance between the upper end portion 46 in the rotation direction and the rotation locus of the outer end portion of the handling cylinder 31 can be changed and adjusted.

（１－２）図９に示すように、受網３２が分割されることなく周方向に沿って一連に連なる構成の受網構成体４３にて構成され、その受網構成体４３について、例えば、回転方向下手側端部４７を位置固定状態とし、且つ、周方向の中間位置を中継ブラケット４５にて支持させて位置を固定しておき、回転方向上手側端部と扱胴３１の外端部の回転軌跡との間隔を変更調節可能に構成したもの。 (1-2) As shown in FIG. 9, the receiving net 32 is composed of a receiving net constituent 43 having a structure in which the receiving net 32 is continuously connected in a series along the circumferential direction without being divided, and the receiving net constituent 43 thereof, for example. The position of the lower end portion 47 in the rotation direction is fixed, and the intermediate position in the circumferential direction is supported by the relay bracket 45 to fix the position. It is configured so that the distance from the rotation locus of the part can be changed and adjusted.

（１－３）図１０に示すように、２つの受網構成体４２，４３のうちの扱胴回転方向上手側に位置する一方の受網構成体４３について、下手側端部４７をボルト連結するものに代えて、下手側端部４７を中継ブラケットに対して回転軸芯方向に沿う軸芯周りで揺動可能に支持するように構成したもの。 (1-3) As shown in FIG. 10, for one of the two receiving net components 42, 43 located on the upper side in the handling cylinder rotation direction, the lower side end portion 47 is bolted. The lower end 47 is configured to swingably support the relay bracket around the axis along the direction of the axis of rotation.

（１－４）図１１に示すように、２つの受網構成体４２，４３のうちの扱胴回転方向上手側に位置する一方の受網構成体４３について、回転方向における上手側端部４６を位置固定状態とし、回転方向における下手側端部４７と扱胴３１の外端部の回転軌跡との間隔を変更調節可能に構成したもの。 (1-4) As shown in FIG. 11, of the two receiving net components 42 and 43, one of the receiving net components 43 located on the upper side in the handling cylinder rotation direction is the upper end portion 46 in the rotation direction. Is in a fixed position state, and the distance between the lower end portion 47 in the rotation direction and the rotation locus of the outer end portion of the handling cylinder 31 can be changed and adjusted.

（２）上記実施形態では、受網構成体４３が、扱胴３１の回転軸芯方向に沿って分割された複数の分割受網４０を有し、位置調節機構５０が、複数の分割受網４０夫々の他方側端部を一体移動させて位置調節させるようにしたが、複数の分割受網４０について、各別に位置調節する構成としてもよく、又、複数の分割受網４０のうちの一部の分割受網４０、特に、処理物移送方向始端側の分割受網４０だけを位置調節する構成とする等、種々の構成を採用することができる。 (2) In the above embodiment, the receiving net configuration 43 has a plurality of divided receiving nets 40 divided along the rotation axis direction of the handling cylinder 31, and the position adjusting mechanism 50 has a plurality of divided receiving nets. Although the other end of each of the 40s is moved integrally to adjust the position, the position of the plurality of divided receiving nets 40 may be adjusted separately, or one of the plurality of divided receiving nets 40. Various configurations can be adopted, such as a configuration in which only the split receiving net 40 of the portion, particularly the split receiving net 40 on the starting end side in the processing material transfer direction is adjusted in position.

（３）上記実施形態では、位置調節機構５０が、他方側端部の回転方向の直後における間隔が、他方側端部の回転方向の直前における間隔よりも径方向内側に狭くならないように、他方側端部の位置を変更調節する構成としたが、この構成に代えて、他方側端部の回転方向の直後における間隔が、他方側端部の回転方向の直前における間隔よりも径方向内側に狭くなるように変更調節する構成であってもよい。 (3) In the above embodiment, the position adjusting mechanism 50 does not make the distance immediately after the rotation direction of the other side end narrower inward in the radial direction than the distance immediately before the rotation direction of the other side end. The position of the side end is changed and adjusted, but instead of this configuration, the distance immediately after the rotation direction of the other side end is radially inward from the distance immediately before the rotation direction of the other side end. It may be configured to be changed and adjusted so as to be narrower.

本発明は、普通型コンバインに限らず自脱型コンバインにも適用できる。 The present invention can be applied not only to a normal combine but also to a self-removing combine.

４脱穀装置
２３扱室
３１扱胴
３２受網
４３受網構成体
４６他方側端部
４７一方側端部
５０位置調節機構
５１棒状部材
５２位置変更部材 4 Threshing device 23 Handling room 31 Handling cylinder 32 Receiving net 43 Receiving net configuration 46 Other side end 47 One side end 50 Position adjustment mechanism 51 Rod-shaped member 52 Position change member

Claims

扱室内で刈取穀稈を脱穀処理する脱穀装置が備えられ、
前記扱室に、前後軸芯周りで回転する扱胴と、前記扱胴の外周部に沿う状態で円弧状に設けられた受網とが備えられ、
前記受網に、１つあるいは周方向に沿って分割された複数の受網構成体が備えられ、
前記受網構成体における前記扱胴の周方向に沿う一方側端部を位置保持した状態で、前記受網構成体における前記周方向に沿う他方側端部と前記扱胴の外端部の回転軌跡との間隔を変更調節可能な位置調節機構が備えられており、
前記受網構成体が、前記扱胴の回転軸芯方向に沿って分割された複数の分割受網を有しており、
前記位置調節機構に、
複数の分割受網夫々の前記他方側端部を一体移動可能に支持するとともに、前記扱室の前記回転軸芯方向の一端側箇所から他端側箇所に亘って延びる棒状部材と、
前記棒状部材の前記回転軸芯方向の両側端部を複数の位置に位置固定可能な位置変更部材と、が備えられているコンバイン。 It is equipped with a threshing device that threshes the harvested culm in the handling room.
The handling chamber is provided with a handling cylinder that rotates around the front-rear axis and a receiving net provided in an arc shape along the outer peripheral portion of the handling cylinder.
The receiving net is provided with one or a plurality of receiving net configurations divided along the circumferential direction.
Rotation of the other end of the receiving net configuration along the circumferential direction and the outer end of the handling cylinder while holding the position of one side end of the receiving cylinder along the circumferential direction. It is equipped with a position adjustment mechanism that can change and adjust the distance from the trajectory .
The receiving net configuration has a plurality of divided receiving nets divided along the rotation axis direction of the handling cylinder.
To the position adjustment mechanism,
A rod-shaped member that integrally supports the other end of each of the plurality of split receiving nets and extends from one end side portion in the rotation axis direction of the handling chamber to the other end side portion.
A combine including a position-changing member capable of fixing both end portions of the rod-shaped member in the direction of the axis of rotation to a plurality of positions .

前記他方側端部は、前記扱胴の回転方向における上手側に対応する上手側端部、又は、前記扱胴の回転方向における下手側に対応する下手側端部のいずれかである請求項１に記載のコンバイン。 The other side end portion is either an upper side end portion corresponding to the upper side in the rotation direction of the handling cylinder or a lower side end portion corresponding to the lower side in the rotation direction of the handling cylinder. The combine described in.

前記位置調節機構は、
前記間隔のうち前記他方側端部の前記回転方向の直後における間隔が、前記間隔のうち前記他方側端部の前記回転方向の直前における間隔よりも径方向内側に狭くならないように、前記他方側端部の位置を変更調節する請求項２に記載のコンバイン。 The position adjustment mechanism is
The other side of the interval so that the interval immediately after the rotation direction of the other end portion of the interval is not narrower inward in the radial direction than the interval immediately before the rotation direction of the other side end portion of the interval. The combine according to claim 2, wherein the position of the end portion is changed and adjusted.