JP3597577B2

JP3597577B2 - Combine threshing equipment

Info

Publication number: JP3597577B2
Application number: JP28281094A
Authority: JP
Inventors: 村木仁佐; 藤忠義佐
Original assignee: Yanmar Agricultural Equipment Co Ltd
Current assignee: Yanmar Agricultural Equipment Co Ltd
Priority date: 1994-10-20
Filing date: 1994-10-20
Publication date: 2004-12-08
Anticipated expiration: 2019-12-08
Also published as: JPH08116772A

Description

【０００１】
【産業上の利用分野】
本発明は刈取穀稈の株元側を挾扼ガイド及びフィードチェンで挾持して扱胴軸と平行に移動させ、穂先だけを扱室に供給して脱穀させるコンバインの脱穀装置に関する。
【０００２】
【従来の技術】
従来、挾扼ガイドは上面に立設させる複数の支持棒を支持フレームにカラーを介して貫通支持し、支持フレームと挾扼ガイドとの間の支持棒上に装着するコイルバネにより、挾扼ガイドをフィードチェン側に押圧している。そして、挾扼ガイドはフィードチェンの送り方向に直交する方向で移動させていた。
【０００３】
【発明が解決しようとする課題】
前記挾扼ガイドには、穀稈が挾扼ガイドを押上げる力と、穀稈と挾扼ガイドとの摩擦力が加わるため、挾扼ガイドの移動方向をフィードチェンの送り方向と直交する方向とした従来構造では、挾扼ガイドに加わる力の方向と移動方向にずれが生じ、穀稈量に対する挾扼ガイドの追従移動がスムーズに行われず、稈こぼれや破断を発生させると共に、挾扼ガイドの支持フレームや支持棒にねじり力が加わるため、その分挾扼ガイドの支持フレームや支持棒に強度上高いものが要求される問題があった。
【０００５】
【課題を解決するための手段】
本発明は、刈取穀稈の株元側を挾扼ガイド及びフィードチェンで挾持して扱胴軸と平行に移動させ、穂先だけを扱室に供給して脱穀させるコンバインの脱穀装置において、挾扼ガイドの支持フレームに、該フレームを抱くように、断面コ形で上下片を有する金具を固着して前記上下片を支持フレーム側方に突出させる一方、下端に下部バネ座を有する支持棒を、前記下部バネ座を前記挾扼ガイドに支軸を介して揺動自在に取付けると共に、支持フレーム側方に突出した前記上下片に摺動自在となるように貫通支持させ、さらに、前記金具の下片と前記下部バネ座間の支持棒上にコイルバネを設け、このコイルバネを介して前記挾扼ガイドを前記フィードチェン側に押圧したものである。
【０００９】
【実施例】
以下、本発明の実施例を図面に基づいて詳述する。図１は挾扼ガイドの支持説明図、図２はコンバインの全体側面図、図３は同平面図であり、図中（１）は走行クローラ（２）を装設するトラックフレーム、（３）は前記トラックフレーム（１）上に架設する機台、（４）はフィードチェン（５）を左側に張架し扱胴（６）及び処理胴（７）を内蔵している脱穀部、（８）は刈刃及び穀稈搬送機構などを備える刈取部、（９）は前記脱穀部（４）の後側に取付け、排藁チェン（１０）及び排藁タイン（１１）終端を臨ませる排藁処理部、（１２）は運転席（１３）及び運転操作部（１４）を備える運転台、（１５）は機台（３）の右側前部に配備してエンジン（１６）を内設するエンジン部、（１７）は前記エンジン部（１５）後方に配設して脱穀部（４）からの穀粒を溜める穀粒タンクであり、連続的に刈取り・脱穀作業を行うように構成している。
【００１０】
また、図４乃至図６に示す如く、図中（１９）は機体の前後方向に軸架する軸流型の扱胴（６）を内設させる扱室、（２０）は前記扱室（１９）に穀稈を挿入する扱口、（２１）は前記扱室（１９）下方に張架させるクリンプ網、（２２）は前記扱室（１９）に開口（２３）を介し連通して処理胴（７）の左外方にクリンプ網（２４）を張架させる処理胴室、（２５）は揺動リンク（２５ａ）及びガイドローラ（２５ｂ）を介して前後方向に揺動自在に支持する揺動選別盤であり、前記クリンプ網（２１）下方に位置させるフィードパン（２６）と、前記クリンプ網（２１）後部下方に位置させるチャフシーブ（２８）と、該チャフシーブ（２８）下方に配設するグレンシーブ（２９）とで前記揺動選別盤（２５）を構成すると共に、該揺動選別盤（２５）の後方に篩い線（３０）を一体に取付けている。
【００１１】
さらに、図中（３２）は前記選別盤（２５）方向に選別風を送給する唐箕、（３３）は揚穀筒（３１）を介して前記穀粒タンク（１７）に穀粒を取出す一番コンベア、（３４）は二番物を還元筒（３４ａ）を介して前記揺動選別盤（２５）前部に還元する二番コンベア、（３５）は前記篩い線（３０）上方で処理胴室（２２）後端の排塵口（２２ａ）に対向させて吸引口（３６）を臨ませる吸排塵ファンであり、前記扱胴（６）及び処理胴（７）により脱穀された穀粒を揺動選別盤（２５）で選別し整粒のみを前記穀粒タンク（１７）に取出すと共に、排藁を排藁チェン（１０）及びタイン（１１）を介し排藁カッタ（３７）（３８）を有する排藁処理部（９）に送り込んで切断後機外に排出させるように構成している。
【００１２】
図７に示す如く、前記エンジン（１６）の出力軸（４０）から走行ミッション（４１）に取付けるＨＳＴ（４２）の入力軸（４３）に動力伝達し、ミッション（４１）の左右出力軸である前記左右走行クローラ（２）（２）の左右駆動スプロケット軸（４４）（４４）を駆動している。
【００１３】
また、前記エンジン（１６）の出力軸から脱穀クラッチ（図示省略）を介して脱穀入力軸（４５）に動力伝達し、該脱穀入力軸（４５）に連動連結させるカウンタ軸（４６）を設け、該カウンタ軸（４７）から扱胴軸（４８）及び処理胴軸（４９）にそれぞれ動力伝達している。
【００１４】
また、前記脱穀入力軸（４５）から唐箕軸（５０）に動力伝達し、唐箕軸（５０）から揺動選別盤（２５）を駆動するクランク軸（５１）に動力伝達すると共に、クランク軸（５１）上に刈取部（８）への出力プーリ（５２）を設けている。
【００１５】
また、前記唐箕軸（５０）に第１コンベア軸（５３）及び第２コンベア軸（５４）並びにカウンタ軸（５５）を連動連結すると共に、カウンタ軸（５５）にファン軸（５６）及び高速側カッター軸（５７）を連動連結し、高速側カッター軸（５７）に連動連結させる低速側カッター軸（５８）からフィードチェン（５）の駆動スプロケット軸（５９）に動力伝達している。
【００１６】
また、前記１番コンベア軸（５３）に揚穀コンベア（６０）のコンベア軸（６１）を連動連結させると共に、前記２番コンベア軸（５４）に還元コンベア（６２）のコンベア軸（６３）を連動連結させ、さらに前記扱胴軸（４８）の後端からカウンタ軸（６４）を介して排藁チェン（１０）前部の駆動スプロケット軸（６５）に動力伝達し、排藁チェン（１０）後部の従動スプロケット軸（６６）上に排藁タイン（１１）の駆動スプロケット（６７）を設けている。
【００１７】
図６、図８、図９に示す如く、フィードチェン（５）は脱穀部（４）の機枠の左側板（７０）側に駆動スプロケット（７１）及び前端にタイコ部（７２）を一体形成するチェンレール（７３）及びチェン張り（図示省略）を介して脱穀部（４）の左側で扱胴軸（４８）と平行に張架すると共に、脱穀部（４）の機枠の上側壁カバー（７４）側に支持フレーム（７５）を介して挾扼ガイド（７６）を取付けるもので、下端に下部バネ座（７７）を有する支持棒（７８）を４本設け、下部バネ座（７７）を挾扼ガイド（７６）に支軸（７９）を介して揺動自在に取付け、挾扼ガイド（７６）上面に４本の支持棒（７８）を略等間隔に立設支持させると共に、前記支持フレーム（７５）に該フレーム（７５）を抱く断面コ形の金具（８０）を４個略等間隔に固着し、支持フレーム（７５）外側に金具（８０）の上下片（８１）（８２）を突出させ、支持フレーム（７５）の左外側直近で前記各支持棒（７８）を上下片（８１）（８２）に摺動自在に貫通支持させ、挾扼ガイド（７６）をフィードチェン（５）に対して接離させるべく該ガイド（７６）を支持フレーム（７５）に移動自在に取付けると共に、各支持棒（７８）の上端をスナップピン（８３）及び座金（８４）を介して金具（８０）の上片（８１）上面に係合させ、各支持棒（７８）の抜止めを行うと共に、上部バネ座である前記金具（８０）の下片（８２）と前記下部バネ座（７７）間の支持棒（７８）上に圧縮バネであるコイルバネ（８５）を設け、各バネ（８５）を介して挾扼ガイド（７６）をフィードチェン（５）側に押圧し、穀粒の穂先側が扱室（１９）を通過する間同穀粒穂先を挾扼ガイド（７６）によりフィードチェン（７３）に挾持させるように構成している。
【００１８】
そして図１に示す如く、前記挾扼ガイド（７６）には、フィードチェン（５）と挾扼ガイド（７６）間に割込んでくる穀稈が挾扼ガイド（７６）をバネ（８５）に抗して押上げる力（Ｆ）と、穀稈と挾扼ガイド（７６）の間の摩擦力（Ｆμ）が加わるもので、これら各力（Ｆ）（Ｆμ）の合成ベクトルと（ＦＦμ）方向に、挾扼ガイド（７６）が穀粒量に応じて押上げられ、又は、合成ベクトル（ＦＦμ）方向と反対方向に挾扼ガイド（７６）が穀粒量に応じて押下げられるように、該挾扼ガイド（７６）の移動方向を設定し、その移動方向にのみ挾扼ガイド（７６）が移動するように前記各支持棒（７８）及び各金具（８０）を介して挾扼ガイド（７６）を支持フレーム（７５）に支持させると共に、各バネ（８５）により挾扼ガイド（７６）を合成ベクトル（ＦＦμ）方向と反対側に押圧するように構成している。
【００１９】
また、前記合成ベクトル（ＦＦμ）方向はフィードチェン（５）の送り方向（Ａ）に直交する方向（Ｂ）に対し後退角（α）を持った方向で、挾扼ガイド（７６）の移動方向は前記後退角（α）の分だけフィードチェン（５）の送り方向（Ａ）に直交する方向に対し後傾となるものである。
【００２０】
図１０は支持フレーム（７５）に対する挾扼ガイド（７６）の支持構造の他の実施例を示し、下端に座金（７７ａ）を有する支持棒（７８ａ）を設け、座金（７７ａ）を挾扼ガイド（７６）に支軸（７９ａ）を介して揺動自在に取付け、挾扼ガイド（７６）上面に支持棒（７８ａ）を立設支持させると共に、前記支持フレーム（７５）の左外側面に断面コ形の金具（８０ａ）を固着し、前記支持棒（７８ａ）を金具（８０ａ）の上下片（８１ａ）（８２ａ）に摺動自在に貫通支持させ、また支持棒（７８ａ）の上端をスナップピン（８３ａ）及び座金（８４ａ）を介して金具（８０ａ）の上片（８１ａ）上面に係合させ、支持棒（７８ａ）の抜止めを行うと共に、金具（８０ａ）の上下片（８１ａ）（８２ａ）間の支持棒（７８ａ）上にバネ座（９０）を固着し、該バネ座（９０）と金具（８０ａ）の上片（８１ａ）間の支持棒（７８ａ）上に圧縮バネであるコイルバネ（８５ａ）を設けたもので、該構造の支持部を前記実施例と同様に４ケ所設けて挾扼ガイド（７６）を支持フレーム（７５）に支持させると共に、挾扼ガイド（７６）の移動方向も前記実施例と同方向とするものである。
【００２３】
【発明の効果】
以上実施例から明らかなように本発明は、刈取穀稈の株元側を挾扼ガイド及びフィードチェンで挾持して扱胴軸と平行に移動させ、穂先だけを扱室に供給して脱穀させるコンバインの脱穀装置において、挾扼ガイドの支持フレームに、該フレームを抱くように、断面コ形で上下片を有する金具を固着して前記上下片を支持フレーム側方に突出させる一方、下端に下部バネ座を有する支持棒を、前記下部バネ座を前記挾扼ガイドに支軸を介して揺動自在に取付けると共に、支持フレーム側方に突出した前記上下片に摺動自在となるように貫通支持させ、さらに、前記金具の下片と前記下部バネ座間の支持棒上にコイルバネを設け、このコイルバネを介して前記挾扼ガイドを前記フィードチェン側に押圧した構成としたもので、支持フレームの強度低下や挾扼ガイドの組立作業性を向上させることができ、また、支持フレームの直近で支持棒を支持するために、挾扼ガイドをガタツキなく移動させることができると共に、挾扼ガイドの取付スペースの左右幅を小さくできる。
【図面の簡単な説明】
【図１】挾扼ガイドの支持説明図。
【図２】コンバインの全体側面図。
【図３】コンバインの全体平面図。
【図４】脱穀部の側面説明図。
【図５】脱穀部の平面説明図。
【図６】脱穀部の正面説明図。
【図７】脱穀部の駆動系統図。
【図８】フィードチェン部の側面説明図。
【図９】フィードチェン部の断面説明図。
【図１０】他の実施例を示す断面説明図。
【符号の説明】
（５）フィードチェン
（７６）挾扼ガイド[0001]
[Industrial applications]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combine threshing apparatus in which the root side of a harvested grain culm is pinched by a pinching guide and a feed chain, moved in parallel with a handling cylinder axis, and only the tips are supplied to a handling chamber for threshing.
[0002]
[Prior art]
Conventionally, a clamping guide has a plurality of support rods erected on the upper surface penetratingly supported on a support frame via a collar, and the clamping guide is mounted on a support rod between the support frame and the clamping guide by a coil spring. Pressing to feed chain side. The pinching guide is moved in a direction orthogonal to the feed chain feed direction.
[0003]
[Problems to be solved by the invention]
Because the stalk pushes up the stalk guide and the frictional force between the stalk and the stalk guide, the moving direction of the stalk guide is set to the direction orthogonal to the feed chain feeding direction. In the conventional structure described above, the direction of the force applied to the pinching guide is shifted from the moving direction, so that the pinching guide does not smoothly follow the culm amount, causing stalk spilling or breaking, and causing the pinching guide to move. Since a torsional force is applied to the supporting frame and the supporting rod, there is a problem that the supporting frame and the supporting rod of the pinching guide are required to have high strength.
[0005]
[Means for Solving the Problems]
The present invention relates to a combine threshing apparatus in which the stem side of a harvested grain culm is moved in parallel with a handle cylinder axis while being clamped by a clamping guide and a feed chain, and only a tip is supplied to a handling chamber to thresh. On the support frame of the guide, a metal fitting having upper and lower pieces with a U-shaped cross section is fixed so as to hold the frame so that the upper and lower pieces protrude to the side of the support frame, while a support rod having a lower spring seat at the lower end is provided. The lower spring seat is swingably attached to the clamping guide via a support shaft, and is slidably supported by the upper and lower pieces protruding to the side of the support frame so as to be slidable. A coil spring is provided on a support bar between the piece and the lower spring seat, and the clamping guide is pressed toward the feed chain via the coil spring.
[0009]
【Example】
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is an explanatory view of the support of the pinching guide, FIG. 2 is an overall side view of the combine, and FIG. 3 is a plan view of the combine, wherein (1) is a track frame on which a traveling crawler (2) is mounted, and (3). Is a machine frame installed on the truck frame (1), (4) is a threshing unit in which a feed chain (5) is stretched to the left side and a handling cylinder (6) and a processing cylinder (7) are built in, (8). ) Is a mowing section provided with a cutting blade and a grain culm transport mechanism, etc., and (9) is attached to the rear side of the threshing section (4), and has a straw chain (10) and a straw tine (11) facing the end. A processing unit, (12) a driver's cab having a driver's seat (13) and a driving operation unit (14), and (15) an engine provided at the front right side of the machine base (3) and having an engine (16) installed therein And (17) a grain tank disposed behind the engine section (15) to store the grains from the threshing section (4). , And configured to perform continuously reaping-threshing operations.
[0010]
Also, as shown in FIGS. 4 to 6, (19) in the figures is a handling room in which an axial-flow-type handling cylinder (6) suspended in the longitudinal direction of the body is provided, and (20) is a handling room (19). (2) is a crimping net extending below the handling room (19), and (22) is a processing cylinder that communicates with the handling room (19) through an opening (23). (7) a processing chamber for extending a crimping net (24) to the left outside, and (25) a swinging support for swingably supporting in the front-rear direction via a swinging link (25a) and a guide roller (25b). A feed pan (26) located below the crimping net (21), a chaff sheave (28) located below the rear of the crimping mesh (21), and a lower part of the chaff sheave (28). The swing sorter (25) is constituted by the grain sieve (29) and the swing Another machine line sieves behind (25) (30) are attached together.
[0011]
Further, in the figure, (32) is a carving machine for feeding a sorting wind in the direction of the sorting board (25), and (33) is a box for taking out the grains to the grain tank (17) via a fryer (31). The number conveyor, (34) is a number conveyor for reducing the second product to the front of the swinging sorter (25) through a reduction cylinder (34a), and (35) is a processing cylinder above the sieving line (30). A suction / discharge dust fan that faces the suction port (36) in opposition to the dust discharge port (22a) at the rear end of the chamber (22), and that removes the grain threshed by the handling cylinder (6) and the processing cylinder (7). The sifted by the oscillating sorter (25), only the sieved grain is taken out to the grain tank (17), and the straw is discharged through a straw chain (10) and a tine (11). It is configured to be sent to a straw processing unit (9) having
[0012]
As shown in FIG. 7, power is transmitted from an output shaft (40) of the engine (16) to an input shaft (43) of an HST (42) mounted on a traveling mission (41), and is a left and right output shaft of the transmission (41). It drives the left and right driving sprocket shafts (44) and (44) of the left and right traveling crawlers (2) and (2).
[0013]
Further, a counter shaft (46) for transmitting power from an output shaft of the engine (16) to a threshing input shaft (45) via a threshing clutch (not shown) and operatively connected to the threshing input shaft (45) is provided. Power is transmitted from the counter shaft (47) to the handling cylinder shaft (48) and the processing cylinder shaft (49), respectively.
[0014]
In addition, power is transmitted from the threshing input shaft (45) to the Karamin shaft (50), and power is transmitted from the Karamin shaft (50) to a crankshaft (51) for driving the swinging sorter (25). 51) An output pulley (52) for the reaper (8) is provided on the upper side.
[0015]
Further, the first conveyor shaft (53), the second conveyor shaft (54), and the counter shaft (55) are interlockedly connected to the Karamin shaft (50), and the fan shaft (56) and the high-speed side are connected to the counter shaft (55). The cutter shaft (57) is interlocked and connected to the high speed cutter shaft (57), and power is transmitted from the low speed cutter shaft (58) to the drive sprocket shaft (59) of the feed chain (5).
[0016]
In addition, the conveyor shaft (61) of the fried conveyor (60) is connected to the first conveyor shaft (53) in an interlocking manner, and the conveyor shaft (63) of the reduction conveyor (62) is connected to the second conveyor shaft (54). Interlockingly connected, power is transmitted from the rear end of the handle cylinder shaft (48) to the drive sprocket shaft (65) in front of the straw chain (10) via the counter shaft (64), and the straw chain (10) A drive sprocket (67) for the straw tine (11) is provided on the rear driven sprocket shaft (66).
[0017]
As shown in FIGS. 6, 8 and 9, the feed chain (5) is integrally formed with a drive sprocket (71) on the left side plate (70) side of the machine frame of the threshing unit (4) and a tie (72) at the front end. A chain rail (73) and a chain tensioner (not shown) are attached to the threshing unit (4) and stretched on the left side of the threshing unit (4) in parallel with the handle barrel shaft (48), and the upper wall cover of the machine frame of the threshing unit (4) A support guide (76) is attached to the (74) side via a support frame (75). Four support rods (78) having a lower spring seat (77) are provided at the lower end, and a lower spring seat (77) is provided. Are pivotally mounted on a pinching guide (76) via a support shaft (79), and four support bars (78) are erected on the upper surface of the pinching guide (76) at substantially equal intervals. Four brackets (80) having a U-shaped cross section for holding the frame (75) on the support frame (75) are approximately four. The upper and lower pieces (81) and (82) of the metal fitting (80) are projected outside the support frame (75), and each of the support bars (78) is placed near the left outside of the support frame (75). 81) and (82) are slidably penetrated and supported, and the guide (76) is movably mounted on the support frame (75) so as to move the clamping guide (76) toward and away from the feed chain (5). The upper end of each support rod (78) is engaged with the upper surface of the upper piece (81) of the fitting (80) via the snap pin (83) and the washer (84), and the support rod (78) is prevented from coming off. At the same time, a coil spring (85) as a compression spring is provided on a support rod (78) between the lower piece (82) of the metal fitting (80) as an upper spring seat and the lower spring seat (77). ) Through the pinching guide (76) to the feed chain (5) side Pressed, and configured to sandwiched the feed chain (73) by 挾扼 guide (76) between the grain tip tip side of the grain is passing through the threshing chamber (19).
[0018]
As shown in FIG. 1, the stalks which are inserted between the feed chain (5) and the squeezing guide (76) are attached to the squeezing guide (76) by the spring (85). The force (F) that pushes up and the frictional force (Fμ) between the cereal stalk and the pinching guide (76) are added. The combined vector of these forces (F) and (Fμ) and the (FFμ) direction Then, the nipping guide (76) is pushed up according to the amount of grain, or the nipping guide (76) is pushed down according to the amount of grain in the direction opposite to the direction of the composite vector (FFμ). The direction of movement of the nipping guide (76) is set, and the nipping guide (76) is moved via the support rods (78) and the metal fittings (80) so that the nipping guide (76) moves only in the moving direction. 76) is supported by the support frame (75), and the guides (76) are held by the springs (85). It is configured to be pressed against the opposite side of the synthetic vector (FFμ) direction.
[0019]
The direction of the combined vector (FFμ) is a direction having a receding angle (α) with respect to a direction (B) orthogonal to the feed direction (A) of the feed chain (5), and the moving direction of the clamping guide (76). Is inclined backward in the direction perpendicular to the feed direction (A) of the feed chain (5) by the sweepback angle (α).
[0020]
FIG. 10 shows another embodiment of the support structure of the clamping guide (76) to the supporting frame (75). A supporting rod (78a) having a washer (77a) is provided at the lower end, and the washer (77a) is clamped by the clamping guide. (76) through a support shaft (79a) so as to be swingable, a support rod (78a) is erected on the upper surface of the nipping guide (76), and a cross section is formed on the left outer surface of the support frame (75). A U-shaped bracket (80a) is fixed, the support rod (78a) is slidably penetrated and supported by upper and lower pieces (81a) and (82a) of the bracket (80a), and the upper end of the support rod (78a) is snapped. The pin (83a) and the washer (84a) are engaged with the upper surface of the upper piece (81a) of the metal fitting (80a) to prevent the support rod (78a) from coming off, and the upper and lower pieces (81a) of the metal fitting (80a). (82a) Spring between support rods (78a) (90) is fixed, and a coil spring (85a) as a compression spring is provided on a support rod (78a) between the spring seat (90) and the upper piece (81a) of the metal fitting (80a). Four supporting portions are provided in the same manner as in the previous embodiment to support the nipping guide (76) on the support frame (75), and the direction of movement of the nipping guide (76) is the same as that in the above embodiment. is there.
[0023]
【The invention's effect】
As is clear from the above embodiment, the present invention holds the root side of the harvested grain culm with a pinching guide and a feed chain and moves it in parallel with the handle cylinder axis, and supplies only the tip to the handle chamber to thresh. In the combine threshing apparatus, a metal fitting having upper and lower pieces having a U-shaped cross section is fixed to the support frame of the sandwiching guide so as to hold the frame, and the upper and lower pieces are projected to the side of the support frame, while the lower part is provided at the lower end. A support rod having a spring seat is swingably mounted on the lower spring seat via the support shaft to the clamping guide, and penetratingly supported so as to be slidable on the upper and lower pieces protruding to the side of the support frame. Further, a coil spring is provided on a support rod between the lower piece of the metal fitting and the lower spring seat, and the clamping guide is pressed toward the feed chain through the coil spring. It is possible to lower and improve the workability of assembling the clamping guide, and to support the support rod in the immediate vicinity of the support frame, so that the clamping guide can be moved without looseness and the mounting space for the clamping guide. Left and right width can be reduced.
[Brief description of the drawings]
FIG. 1 is an explanatory view of supporting a pinching guide.
FIG. 2 is an overall side view of the combine.
FIG. 3 is an overall plan view of the combine.
FIG. 4 is an explanatory side view of a threshing unit.
FIG. 5 is an explanatory plan view of a threshing unit.
FIG. 6 is an explanatory front view of a threshing unit.
FIG. 7 is a drive system diagram of a threshing unit.
FIG. 8 is an explanatory side view of the feed chain unit.
FIG. 9 is an explanatory sectional view of a feed chain unit.
FIG. 10 is an explanatory sectional view showing another embodiment.
[Explanation of symbols]
(5) Feed chain (76) Nipping guide

Claims

The stem side of the harvested culm is clamped by the clamping guide (76) and the feed chain (5) and moved in parallel with the handle cylinder shaft (48), and only the tip is supplied to the handle chamber (19) for threshing. In the combine threshing equipment,
The挾扼guide support frame (76) (75), so as to embrace the frame (75), upper and lower pieces in cross section U-shaped (81) (82) said upper and lower pieces were fixed to brackets (80) having a ( 81) (82) while is projected to the support frame (75) side and,
A support rod (78) having a lower spring seat (77) at its lower end is swingably mounted on the lower spring seat (77) to the clamping guide (76) via a support shaft (79). (75) The upper and lower pieces (81) and (82) projecting sideways are penetrated and supported so as to be slidable .
Further, a coil spring (85) is provided on a support rod (78) between the lower piece (82) of the metal fitting (80) and the lower spring seat (77), and the pinching guide ( A threshing device for a combine, characterized in that 76) is pressed toward the feed chain (5) .