JP2006217927A - Combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a combine harvester simplified in a supporting structure of a reaping section and improved in handling workability such as turning operation of the reaping section to a lateral side. <P>SOLUTION: The combine harvester has a reaping section and a supporting axis for freely laterally movably supporting the reaping section, wherein the reaping section is supported on an axis body and is lifted or lowered by centering the shaft body, while the reaping section is turned around the supporting axis to the lateral side to open the front side of a threshing section and the side part of a driving seat. Thereby, weight reduction of the reaping section base structure such as the supporting axis, prevention of interference with other elements and caused by transfer in a height, simplification of a reaping section lifting structure for rotation to the lateral side can be easily performed, and treatment workability such as simplification of the reaping section supporting structure and rotation operation to the lateral side can be increased. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、例えば刈取部及び脱穀部を備え、連続的に穀稈を刈取って脱穀するコンバインに関する。   The present invention relates to a combine that includes, for example, a mowing unit and a threshing unit and continuously cereals and thresh cereals.

従来、刈取部を備え、刈取部を側方移動自在に支持する支点軸を設けると共に、刈取部を軸体に支持させ、軸体を中心に刈取部を昇降させる技術がある（例えば、特許文献１参照）。
実開平２−９０９３０号公報 2. Description of the Related Art Conventionally, there is a technique that includes a cutting part, provides a fulcrum shaft that supports the cutting part so as to be movable laterally, supports the cutting part on a shaft body, and raises and lowers the cutting part around the shaft body (for example, Patent Documents). 1).
Japanese Utility Model Publication No. 2-90930

前記従来技術は、軸体を支える架台の下側に支点軸を設け、刈取部と架台を一体的に側方に回動させるから、側方に回動させる部位の軽量化を容易に行い得ないと共に、刈取部を側方に回動させるとき、刈取部を地上に持上げるリンク機構を必要とする等の構造上及び取扱い上の問題がある。   In the prior art, a fulcrum shaft is provided on the lower side of the pedestal that supports the shaft body, and the cutting part and the pedestal are integrally rotated sideward, so that the portion to be rotated sideways can be easily reduced in weight. In addition, there are structural and handling problems such as requiring a link mechanism that lifts the cutting part to the ground when the cutting part is rotated to the side.

然るに、本発明は、請求項１の如く、刈取部を備え、刈取部を側方移動自在に支持する支点軸を設けるコンバインにおいて、刈取部を軸体に支持させ、軸体を中心に刈取部を昇降させる一方、前記支点軸回りに刈取部を側方に回転させて脱穀部前側並びに運転台側部を開放するものである。   However, according to the present invention, as in claim 1, in a combine provided with a cutting part and provided with a fulcrum shaft that supports the cutting part so as to be movable sideways, the cutting part is supported by the shaft body, and the cutting part is centered on the shaft body. While raising and lowering, the cutting part is rotated to the side around the fulcrum shaft to open the front side of the threshing part and the side of the cab.

請求項２に係る発明は、請求項１に記載のコンバインであって、前記刈取部を、メインビームを介して前記軸体に支持させると共に、刈取部を昇降させる油圧昇降シリンダを備え、昇降シリンダをメインビームに対して機体右寄りに配設し、刈取部重心位置を通過する前後方向中心線上に昇降シリンダを取付けて、昇降シリンダによって刈取部重心位置を支えるように構成したものである。   The invention according to claim 2 is the combine according to claim 1, further comprising a hydraulic lifting cylinder for supporting the cutting part on the shaft body via the main beam and raising and lowering the cutting part. Is arranged on the right side of the fuselage with respect to the main beam, and an elevating cylinder is attached on the longitudinal center line passing through the center of gravity of the cutting part, and the center of gravity of the cutting part is supported by the elevating cylinder.

請求項３に係る発明は、請求項１に記載のコンバインであって、前記刈取部を、メインビームを介して前記軸体に支持させると共に、刈取部を昇降させる油圧昇降シリンダを備え、昇降シリンダをメインビームに対して機体右寄りに配設し、刈取駆動力が伝えられる刈取入力プーリを前記軸体の右側に設けると共に、刈取入力プーリに伝えられた刈取駆動力をメインビームを介して刈取部各部に駆動力を伝えるようになっており、昇降シリンダを、平面視でメインビームと刈取入力プーリの間に位置させ、昇降シリンダによって刈取部重心位置を支えるように構成したものである。   The invention according to claim 3 is the combine according to claim 1, further comprising a hydraulic lifting cylinder for supporting the cutting part on the shaft body via the main beam and raising and lowering the cutting part. Is arranged on the right side of the machine with respect to the main beam, and a cutting input pulley that transmits the cutting driving force is provided on the right side of the shaft body, and the cutting driving force transmitted to the cutting input pulley is transmitted through the main beam to the cutting unit. The driving force is transmitted to each part, and the lifting cylinder is positioned between the main beam and the cutting input pulley in a plan view, and the cutting bar center of gravity is supported by the lifting cylinder.

請求項１に係る発明は、刈取部を備え、刈取部を側方移動自在に支持する支点軸を設けるコンバインにおいて、刈取部を軸体に支持させ、軸体を中心に刈取部を昇降させる一方、前記支点軸回りに刈取部を側方に回転させて脱穀部前側並びに運転台側部を開放するもので、例えば前記軸体一側を支点軸に支持させて刈取部を側方に回動させることにより、軸体などの刈取部の基部構造の重量軽減、並びに高所での移動による他の部品との干渉防止、並びに側方回動させる刈取部の持上げ構造の簡略化などを容易に行うことができ、刈取部の支持構造の簡略化並びに側方への回動操作など取扱い作業性の向上などを図ることができるものである。   The invention according to claim 1 is a combine that includes a cutting portion and includes a fulcrum shaft that supports the cutting portion so that the cutting portion can be moved laterally. The cutting portion is supported by the shaft body, and the cutting portion is moved up and down around the shaft body. Rotating the mowing part to the side around the fulcrum shaft to open the front side of the threshing part and the side of the cab, for example, rotating the mowing part to the side by supporting the shaft body side on the fulcrum shaft By doing so, it is easy to reduce the weight of the base structure of the cutting part such as the shaft body, prevent interference with other parts due to movement at a high place, and simplify the lifting structure of the cutting part that rotates sideways. It is possible to improve the handling workability such as simplification of the support structure of the reaping part and the rotation operation to the side.

請求項２に係る発明は、前記刈取部を、メインビームを介して前記軸体に支持させると共に、刈取部を昇降させる油圧昇降シリンダを備え、昇降シリンダをメインビームに対して機体右寄りに配設し、刈取部重心位置を通過する前後方向中心線上に昇降シリンダを取付け、昇降シリンダによって刈取部重心位置を支えるように構成したものであり、昇降シリンダによって刈取部重心位置を支えることができる。   The invention according to claim 2 is provided with a hydraulic lifting cylinder for supporting the cutting part on the shaft body via the main beam and raising and lowering the cutting part, and the lifting cylinder is disposed on the right side of the machine body with respect to the main beam. The lifting / lowering cylinder is mounted on the center line in the front-rear direction passing through the cutting portion gravity center position, and the cutting portion gravity center position is supported by the lifting cylinder, and the cutting portion gravity center position can be supported by the lifting cylinder.

請求項３に係る発明は、刈取駆動力が伝えられる刈取入力プーリを前記軸体の右側に設けると共に、刈取入力プーリに伝えられた刈取駆動力をメインビームを介して刈取部各部に駆動力を伝えるようになっており、昇降シリンダを、平面視でメインビームと刈取入力プーリの間に位置させており、昇降シリンダによって刈取部重心位置を支えるように構成したものであり、昇降シリンダによって刈取部重心位置を支えることができる。   According to a third aspect of the present invention, a cutting input pulley to which a cutting driving force is transmitted is provided on the right side of the shaft body, and the cutting driving force transmitted to the cutting input pulley is applied to each portion of the cutting unit via the main beam. The lifting cylinder is positioned between the main beam and the cutting input pulley in plan view, and the cutting cylinder is supported by the lifting cylinder so that the cutting section is supported by the lifting cylinder. The center of gravity can be supported.

以下本発明の実施例を図面に基づいて詳述する。図１は刈取部の昇降支点筒軸部の平面図、図２は全体の側面図、図３は同平面図であり、図中（１）は走行クローラ（２ａ）（２ｂ）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）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（９）及び穀稈搬送機構（１０）などを備える刈取部、（１１）は昇降支点筒軸（１２）を介して刈取部（８）を昇降させる油圧昇降シリンダ、（１３）は排藁チェン（１４）終端を臨ませる排藁処理部、（１５）は脱穀部（４）からの穀粒を揚穀筒（１６）を介して搬入する穀物タンク、（１７）は前記タンク（１５）の穀粒を機外に搬出する排出オーガ、（１８）は運転操作部（１９）及び運転席（２０）を備える運転台、（２１）は運転席（２０）下方に設けるエンジンであり、連続的に穀稈を刈取って脱穀するように構成している。   Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a plan view of a lifting and lowering fulcrum cylinder shaft portion of a cutting portion, FIG. 2 is a side view of the whole, FIG. 3 is a plan view thereof, and (1) in FIG. A track frame, (3) a machine base installed on the track frame (1), (4) a feed chain (5) stretched on the left side, and a handling cylinder (6) and a processing cylinder (7) are built in. Threshing section, (8) is a cutting section provided with a cutting blade (9) and a cereal conveyance mechanism (10), etc., (11) is a hydraulic lift that moves the cutting section (8) up and down via a lifting fulcrum cylinder shaft (12) A cylinder, (13) a waste disposal unit (14) facing the end of the waste chain (14), (15) a grain tank that carries the grain from the threshing unit (4) through the milled cylinder (16), 17) is a discharge auger for carrying out the grains of the tank (15) to the outside of the machine, (18) is a driving operation part (19) and a driver's seat (20 Cab equipped with, it is configured to threshing harvests (21) the driver's seat (20) an engine provided below, continuously culms.

さらに、図４、図５、図６に示す如く、機台（３）前側に固定させるミッションケース（２２）をエンジン（２１）前方に配置させ、ミッションケース（２２）両側に駆動スプロケット（２３）を介して左右走行クローラ（２）を張架させると共に、エンジン（２１）の出力プーリ（２４）とミッションケース（２２）の入力プーリ（２５）の間に走行テンションローラクラッチ（２６）を介して走行ベルト（２７）を張設させ、走行駆動力を走行ベルト（２７）によってミッションケース（２２）に伝えるもので、機台（３）に立設させる支柱（２８）を介してテンションバネ（２９）を張設させ、該バネ（２９）によってクラッチ（２６）をベルト（２７）に弾圧して緊張させるように構成している。   Further, as shown in FIGS. 4, 5, and 6, a transmission case (22) fixed to the front side of the machine base (3) is disposed in front of the engine (21), and a drive sprocket (23) is disposed on both sides of the transmission case (22). The left and right traveling crawlers (2) are stretched through the travel tension roller clutch (26) between the output pulley (24) of the engine (21) and the input pulley (25) of the transmission case (22). The traveling belt (27) is stretched, and the traveling driving force is transmitted to the transmission case (22) by the traveling belt (27). The tension spring (29) is provided via a support (28) standing on the machine base (3). ) Is tensioned, and the clutch (26) is elastically pressed against the belt (27) by the spring (29) to be tensioned.

また、刈取部（８）を支持させる左右架台（３０）（３１）を機台（３）の前部上面に固設させ、昇降支点筒軸（１２）左端の水平支点軸（３２）を左架台（３０）に回転自在に軸支させ、前記筒軸（１２）右端部を右架台（３１）に着脱自在に嵌合させると共に、刈取駆動軸（３３）を内挿させるメインビーム（３４）、並びに搬送駆動軸（３５）を内挿させる搬送支持パイプ（３６）を介して刈取部（８）を前記筒軸（１２）に支持させ、前記筒軸（１２）を中心に刈取部（８）を昇降させる一方、前記支点軸（３２）を中心に刈取部（８）を略水平に回転させ、刈取部（８）を機体左側方に水平回転させて脱穀部（４）前側並びに運転台（１８）左側を開放して各部のメンテナンス等を行うもので、前記筒軸（１２）の右側端に刈取入力プーリ（３７）を設け、走行変速と同調するミッションケース（２２）の刈取プーリ（３８）と前記入力プーリ（３７）の間に刈取テンションローラクラッチ（３９）を介して刈取ベルト（４０）を張設させ、該ベルト（４０）を介して刈取部（８）各部を駆動するように構成している。   Further, left and right mounts (30) and (31) for supporting the cutting part (8) are fixed to the upper surface of the front part of the machine base (3), and the horizontal fulcrum shaft (32) at the left end of the lifting fulcrum fulcrum cylinder shaft (12) is left. A main beam (34) that is rotatably supported by a gantry (30), the right end of the cylindrical shaft (12) is detachably fitted to the right gantry (31), and the cutting drive shaft (33) is inserted. In addition, the cutting part (8) is supported by the cylindrical shaft (12) via a conveyance support pipe (36) for inserting the conveyance driving shaft (35), and the cutting part (8) is formed around the cylindrical axis (12). ), While the cutting part (8) is rotated substantially horizontally around the fulcrum shaft (32), the cutting part (8) is rotated horizontally to the left side of the machine body and the threshing part (4) front side and cab (18) Opening the left side to perform maintenance of each part, etc., cutting into the right end of the cylindrical shaft (12) A pulley (37) is provided, and a cutting belt (40) is stretched between a cutting pulley (38) of a transmission case (22) synchronized with traveling speed change and the input pulley (37) via a cutting tension roller clutch (39). And each part of the cutting unit (8) is driven via the belt (40).

上記から明らかなように、刈取部（８）を備え、刈取部（８）を側方移動自在に支持する支点軸（３２）を設けるコンバインにおいて、刈取部（８）を軸体である筒軸（１２）に支持させ、筒軸（１２）を中心に刈取部（８）を昇降させる一方、前記支点軸（３２）回りに刈取部（８）を側方に回転させて脱穀部（４）前側並びに運転台（１８）側部を開放するもので、例えば前記軸体（１２）一側を支点軸（３２）に支持させて刈取部（８）を側方に回動させることにより、軸体（１２）などの刈取部（８）の基部構造の重量軽減、並びに高所での移動による他の部品との干渉防止、並びに側方回動させる刈取部（８）の持上げ構造の簡略化などを容易に行え、刈取部（８）の支持構造の簡略化並びに側方への回動操作など取扱い作業性の向上などを図る。   As is clear from the above, in a combine provided with a cutting part (8) and provided with a fulcrum shaft (32) that supports the cutting part (8) so as to be movable sideways, the cutting shaft (8) is a cylindrical shaft that is a shaft body. (12) is supported, and the cutting part (8) is moved up and down around the cylindrical shaft (12), while the cutting part (8) is rotated to the side around the fulcrum shaft (32), and the threshing part (4) Opening the front side and the side of the cab (18), for example, by supporting one side of the shaft body (12) on the fulcrum shaft (32) and rotating the cutting part (8) to the side, Weight reduction of the base structure of the cutting part (8) such as the body (12), prevention of interference with other parts due to movement at a high place, and simplification of the lifting structure of the cutting part (8) for lateral rotation The handling structure such as simplification of the support structure of the cutting part (8) and the lateral rotation operation can be performed easily. Achieve such as on.

さらに、前記筒軸（１２）後方の機台（３）上に架台（４１）（４１）を介して軸受筒（４２）を固設させ、該筒（４２）右側端に脱穀入力プーリ（４３）を設け、前記エンジン（２１）の出力プーリ（２４）と脱穀入力プーリ（４３）の間に脱穀テンションローラクラッチ（４４）を介して脱穀ベルト（４５）を張設させ、該ベルト（４５）を介して脱穀部（４）各部を駆動するもので、エンジン（２１）左側で前方に走行ベルト（２７）を、後方に脱穀ベルト（４５）を張架させ、ミッションケース（２２）左側と走行ベルト（２７）の間に刈取プーリ（３８）を配置させると共に、出力プーリ（２４）左側に右架台（３１）を近接させて配設させ、走行ベルト（２７）に昇降支点筒軸（１２）右側を平面視で交叉させている。   Further, a bearing cylinder (42) is fixed on a machine base (3) behind the cylinder shaft (12) via a gantry (41) (41), and a threshing input pulley (43) is provided at the right end of the cylinder (42). ), And a threshing belt (45) is stretched between the output pulley (24) and the threshing input pulley (43) of the engine (21) via a threshing tension roller clutch (44), and the belt (45) The threshing part (4) is driven via the engine, and the traveling belt (27) is stretched forward on the left side of the engine (21), and the threshing belt (45) is stretched rearward to travel with the left side of the transmission case (22). A cutting pulley (38) is disposed between the belt (27), and a right pedestal (31) is disposed close to the left side of the output pulley (24), and the lifting / lowering fulcrum cylinder shaft (12) is disposed on the traveling belt (27). The right side is crossed in plan view.

上記のように、エンジン（２１）からミッションケース（２２）に走行駆動力を伝える走行ベルト（２７）と、ミッションケース（２２）から刈取部（８）に刈取駆動力を伝える刈取ベルト（４０）を備えると共に、脱穀部（４）前側の機台（３）上に架台（３０）（３１）を介して刈取１軸ケースである昇降支点筒軸（１２）を設け、昇降支点筒軸（１２）の右側に設ける刈取入力プーリ（３７）から刈取２軸ケースであるメインビーム（３４）を介して刈取部（８）各部に駆動力を伝えるコンバインにおいて、エンジン（２１）の前方にミッションケース（２２）を配置させてこれらの左側に前記走行ベルト（２７）を張設させ、前記ミッションケース（２２）との間に刈取ベルト（４０）を張設させる刈取入力プーリ（３７）を走行ベルト（２７）よりも平面視で右側に設ける。そして、エンジン（２１）とミッションケース（２２）を前後方向の直線上に配設させ、また走行ベルト（２７）を挾んでミッションケース（２２）と反対側にメインビーム（３４）を配設させ、エンジン（２１）及びミッションケース（２２）を機体中央寄りに設ける構造でミッションケース（２２）よりも後方に昇降支点筒軸（１２）を設置させ、機体の左右バランス及び前後バランスを向上させる。   As described above, the traveling belt (27) that transmits the driving force from the engine (21) to the transmission case (22), and the cutting belt (40) that transmits the driving force from the transmission case (22) to the cutting unit (8). And a lifting fulcrum cylinder shaft (12), which is a cutting uniaxial case, is provided on a machine base (3) on the front side of the threshing part (4) via a gantry (30) (31). In the combine that transmits the driving force from the cutting input pulley (37) provided on the right side to the cutting unit (8) to the cutting unit (8) via the main beam (34) that is the cutting biaxial case, the transmission case ( 22) is arranged, the traveling belt (27) is stretched on the left side of these, and a cutting input pulley (37) is stretched between the transmission case (22) and the cutting belt (40). Provided on the right side in plan view than preparative (27). The engine (21) and the transmission case (22) are arranged on a straight line in the front-rear direction, and the main beam (34) is arranged on the opposite side of the transmission case (22) with the traveling belt (27) interposed therebetween. The engine (21) and the transmission case (22) are provided closer to the center of the body, and the lifting fulcrum cylinder shaft (12) is installed behind the transmission case (22) to improve the left-right balance and the front-rear balance of the body.

さらに、図６、図７、図８に示す如く、エンジン（２１）左側面にベルト押え基板（４６）を固設させ、該基板（４６）に下ブラケット（４７）を固定させ、出力プーリ（２４）前側下部の走行ベルト（２７）を支持するＵ字形下固定ベルト押え（４８）を下ブラケット（４７）に設けると共に、エンジン（２１）左側でベルト（２７）（４５）に略平行で前後に細長い水平フレーム（４９）を前記基台（４６）に固設させ、水平フレーム（４９）に上ブラケット（５０）を一体固定し、出力プーリ（２４）前側上部の走行ベルト（２７）を支持する丸棒形の上固定ベルト押え（５１）と、出力プーリ（２４）後側上部の脱穀ベルト（４５）を支持する円板（５２）付きの丸棒形固定ベルト押え（５３）を、前記上ブラケット（５０）に設けるもので、上下固定ベルト押え（４８）（５１）によって走行ベルト（２７）の波動（おどり）を制限すると共に、円板（５２）と固定ベルト押え（５３）によって脱穀ベルト（４５）の上側と左側を囲むように構成している。   Further, as shown in FIGS. 6, 7, and 8, a belt holding board (46) is fixed to the left side surface of the engine (21), a lower bracket (47) is fixed to the board (46), and an output pulley ( 24) A U-shaped lower fixed belt presser (48) for supporting the lower front traveling belt (27) is provided on the lower bracket (47), and the front side of the engine (21) is substantially parallel to the belts (27) and (45). An elongated horizontal frame (49) is fixed to the base (46), and the upper bracket (50) is integrally fixed to the horizontal frame (49) to support the traveling belt (27) on the front upper side of the output pulley (24). A round bar-shaped upper fixed belt presser (51), and a round bar-shaped fixed belt presser (53) with a disk (52) for supporting the threshing belt (45) on the upper rear side of the output pulley (24). Provided on the upper bracket (50) The upper and lower fixed belt pressers (48) and (51) limit the wave motion (dance) of the traveling belt (27), and the disc (52) and the fixed belt presser (53) connect the upper side of the threshing belt (45). It is configured to surround the left side.

また、前記水平フレーム（４９）の軸受（４９ａ）に支点軸（５４）を介してベルト押え体（５５）基端を前後に回動自在に取付け、出力プーリ（２４）後側及び下側の走行ベルト（２７）がプーリ（２４）から外れるのを防ぐ板状の走行ベルト押え（５６）と、出力プーリ（２４）後側下部の脱穀ベルト（４５）がプーリ（２４）から外れるのを防ぐ丸棒形及び板状の脱穀ベルト押え（５７）（５８）を、前記ベルト押え体（５５）先端に一体固定させると共に、ベルト押え体（５５）の取付アーム（５９）と前記水平フレーム（４９）前端を右架台（３１）前方の開放空間に延設させ、水平フレーム（４９）に固定アーム（５９）をボルト（６０）によって着脱自在に固定させ、水平フレーム（４９）を介して機体側にベルト押え体（５５）を着脱自在に連結固定させるもので、前記ボルト（６０）の着脱により、前記ベルト（２７）（４５）に近接させて外れるのを防ぐ作用位置と、前記ベルト（２７）（４５）から離反させて交換等を可能にする非作用位置に、ベルト押え体（５５）を回動させると共に、固定ベルト押え（４８）（５１）のベルト（２７）波動防止によって走行ベルト（２７）に走行ベルト押え（５６）を近接配置させてベルト（２７）とベルト押え（５６）間の隙間を小さくするように構成している。   Further, a base of the belt presser (55) is attached to the bearing (49a) of the horizontal frame (49) via a fulcrum shaft (54) so as to be pivotable back and forth, and the rear and lower sides of the output pulley (24). The plate-like traveling belt retainer (56) that prevents the traveling belt (27) from coming off the pulley (24) and the threshing belt (45) at the lower rear side of the output pulley (24) are prevented from coming off from the pulley (24). A round bar-shaped and plate-shaped threshing belt presser (57) (58) is integrally fixed to the tip of the belt presser body (55), and the mounting arm (59) of the belt presser body (55) and the horizontal frame (49) are fixed. ) Extend the front end to the open space in front of the right frame (31), and fix the fixing arm (59) to the horizontal frame (49) with the bolt (60) so that it can be attached and detached. Belt holding body (5 ) Is detachably connected and fixed, and the position where the belt (27) (45) is prevented from coming off when the bolt (60) is attached and detached is separated from the belt (27) (45). The belt presser body (55) is rotated to a non-operating position that enables replacement and the like, and the belt (27) of the fixed belt pressers (48) (51) is prevented from being waved to the travel belt (27). The presser foot (56) is arranged close to each other so that the gap between the belt (27) and the belt presser (56) is reduced.

さらに、図５、図６、図９に示す如く、ミッションケース（２２）の一部を突出させて入力プーリ（２５）の軸受部（２２ａ）を形成し、入力プーリ（２５）と刈取プーリ（３８）を側面視で重合させ、刈取プーリ（３８）前側と軸受部（２２ａ）を近接させて該部（２２ａ）をベルト押えとして兼用すると共に、走行テンションローラクラッチ（２６）を支持するテンションアーム（６１）の支点軸（６２）を、軸受部（２２ａ）に固設するブラケット（６３）の軸受筒（６４）に軸支させ、刈取プーリ（３８）後側上部の刈取ベルト（４０）に前記支点軸（６２）を近接配置させてベルト押えとして兼用し、ミッションケース（２２）周辺を有効利用して刈取ベルト（４０）をコンパクトに配設させるもので、刈取プーリ（３８）後側下部の刈取ベルト（４０）を支持する刈取ベルト押え（６５）をミッションケース（２２）側面にボルト（６６）止め固定させ、刈取ベルト押え（６５）を脱着して刈取ベルト（４０）の取外交換を行うように構成している。   Further, as shown in FIGS. 5, 6, and 9, a part of the mission case (22) is protruded to form a bearing portion (22 a) of the input pulley (25), and the input pulley (25) and the cutting pulley ( 38) is superposed in a side view, the front side of the cutting pulley (38) and the bearing portion (22a) are brought close to each other, and the portion (22a) is used as a belt presser and the tension arm that supports the traveling tension roller clutch (26) The fulcrum shaft (62) of (61) is pivotally supported by the bearing cylinder (64) of the bracket (63) fixed to the bearing portion (22a), and is attached to the cutting belt (40) at the rear upper part of the cutting pulley (38). The fulcrum shaft (62) is arranged close together and also serves as a belt retainer, and the cutting belt (40) is arranged in a compact manner by effectively using the periphery of the transmission case (22). The cutting belt retainer (65) that supports the cutting belt (40) is fixed to the side of the transmission case (22) with a bolt (66), and the cutting belt retainer (65) is detached and removed to replace the cutting belt (40). Is configured to do.

上記構成並びに図１のように、ミッションケース（２２）に走行駆動力を伝える走行ベルト（２７）と、刈取部（８）に刈取駆動力を伝える刈取ベルト（４０）を備えると共に、刈取部（８）を水平回転自在に支持する水平支点軸（３２）を設けるコンバインにおいて、平面視でミッションケース（２２）と走行ベルト（２７）の間に刈取ベルト（４０）を配設させると共に、刈取部（８）最右側に位置する刈取ベルト（４０）張設用刈取入力プーリ（３７）前方側で該プーリ（３７）と略同一高さに走行ベルト（２７）のテンションバネ（２９）を設け、水平支点軸（３２）を中心とする刈取入力プーリ（３７）の水平回転軌跡（６７）の外側に近接させて前記テンションバネ（２９）を設けるもので、前記テンションバネ（２９）の上端側を機体右側方向に延設させ、右方向に傾斜させてテンションバネ（２９）を張設させ、刈取入力プーリ（３７）の水平回転軌跡（６７）の接線と略平行で該接線に接近させてテンションバネ（２９）を配置させ、刈取ベルト（４０）に対しテンションバネ（２９）を平面視で斜交させるように構成している。   As shown in the above configuration and FIG. 1, a traveling belt (27) that transmits the driving force to the transmission case (22) and a cutting belt (40) that transmits the driving force to the cutting part (8) are provided. 8) In the combine provided with a horizontal fulcrum shaft (32) for horizontally supporting the cutting, a cutting belt (40) is disposed between the transmission case (22) and the traveling belt (27) in a plan view, and the cutting unit (8) The tension spring (29) of the traveling belt (27) is provided at the front side of the cutting belt (40) for extending the cutting input pulley (37) located at the rightmost side and substantially the same height as the pulley (37), The tension spring (29) is provided close to the outside of the horizontal rotation locus (67) of the cutting input pulley (37) about the horizontal fulcrum shaft (32), and the upper end of the tension spring (29) Is extended to the right side of the fuselage, tilted to the right and tension springs (29) are stretched, and the tangent of the horizontal rotation locus (67) of the cutting input pulley (37) is approximately parallel to the tangent. A tension spring (29) is disposed, and the tension spring (29) is obliquely crossed with respect to the cutting belt (40) in plan view.

さらに、図１０、図１１に示す如く、一対の略平行な固定板（６８）（６８）並びに一対の略平行な可動板（６９）（６９）で形成する刈取昇降ブラケット（７０）を備え、前記メインビーム（３４）中間の受台（７１）に固定板（６８）を一体固定させ、固定板（６８）及び可動板（６９）の傾斜上端側を固定ピン（７２）によって回転自在に連結させると共に、前記トラックフレーム（１）に支軸（７３）を介して昇降シリンダ（１１）を連結させ、該シリンダ（１１）のピストンロッド（７４）先端を可動板（６９）中間部にピン（７５）を介して連結させ、可動板（６９）の開孔（７６）を介してピン（７５）をピストンロッド（７４）に着脱自在に貫挿させ、可動板（６９）にピン（７５）をボルト（７７）止め固定させる一方、固定板（６８）及び可動板（６９）の傾斜下端側の開孔（７８）（７９）にピン（８０）を着脱自在に貫挿させ、固定板（６８）に前記ピン（８０）をボルト（８１）止め固定させるもので、図１１の如く、固定板（６８）と可動板（６９）を千鳥状に交互に配列させ、メインビーム（３４）の右側下面にブラケット（７０）を設け、メインビーム（３４）に対して昇降シリンダ（１１）を機体右寄りに配設し、刈取部（８）重心位置を通過する前後方向中心線上に昇降シリンダ（１１）を取付け、平面視でメインビーム（３４）と刈取入力プーリ（３７）の間に昇降シリンダ（１１）を位置させ、刈取ベルト（４０）に対してメインビーム（３４）を離反させ、かつ昇降シリンダ（１１）によって刈取部（８）重心位置を支えるように構成している。   Furthermore, as shown in FIG. 10 and FIG. 11, a cutting lift bracket (70) formed by a pair of substantially parallel fixed plates (68) (68) and a pair of substantially parallel movable plates (69) (69) is provided. A fixed plate (68) is integrally fixed to the intermediate base (71) of the main beam (34), and the inclined upper ends of the fixed plate (68) and the movable plate (69) are rotatably connected by a fixed pin (72). At the same time, an elevating cylinder (11) is connected to the track frame (1) via a support shaft (73), and the tip of the piston rod (74) of the cylinder (11) is connected to a pin ( 75), the pin (75) is detachably inserted into the piston rod (74) through the opening (76) of the movable plate (69), and the pin (75) is inserted into the movable plate (69). While fixing the bolt (77), A pin (80) is detachably inserted into an opening (78) (79) on the inclined lower end side of the fixed plate (68) and the movable plate (69), and the pin (80) is bolted to the fixed plate (68). (81) As shown in FIG. 11, the fixed plate (68) and the movable plate (69) are alternately arranged in a staggered manner as shown in FIG. 11, and a bracket (70) is provided on the lower right side of the main beam (34). The elevating cylinder (11) is disposed on the right side of the fuselage with respect to the main beam (34), and the elevating cylinder (11) is mounted on the center line in the front-rear direction passing through the center of gravity of the cutting part (8). 34) and the cutting input pulley (37), the lifting cylinder (11) is positioned, the main beam (34) is separated from the cutting belt (40), and the cutting part (8) is moved by the lifting cylinder (11). Configured to support the position of the center of gravity To have.

刈取部の昇降支点筒軸部の平面図。The top view of the raising / lowering fulcrum cylinder shaft part of a cutting part. 全体の側面図。Overall side view. 同平面図。FIG. エンジン出力部の側面図。The side view of an engine output part. 同平面説明図。FIG. 図４の平面図。The top view of FIG. 図４の拡大図。The enlarged view of FIG. エンジン出力プーリ部の背面図。The rear view of an engine output pulley part. ミッションケース入力プーリ部の正面図。The front view of a mission case input pulley part. 昇降シリンダ部の側面図。The side view of a raising / lowering cylinder part. 昇降ブラケット部の背面図。The rear view of a raising / lowering bracket part.

符号の説明Explanation of symbols

（４） 脱穀部
（８） 刈取部
（１２） 昇降支点筒軸（軸体）
（１８） 運転台
（３２） 水平支点軸 (4) Threshing part (8) Mowing part (12) Lifting fulcrum cylinder shaft (shaft body)
(18) Driver's cab (32) Horizontal fulcrum shaft

Claims (3)

刈取部（８）を備え、刈取部（８）を側方移動自在に支持する支点軸（３２）を設けるコンバインにおいて、
刈取部（８）を軸体（１２）に支持させ、軸体（１２）を中心に刈取部（８）を昇降させる一方、前記支点軸（３２）回りに刈取部（８）を側方に回転させて脱穀部（４）前側並びに運転台（１８）側部を開放することを特徴とするコンバイン。 In a combine provided with a cutting part (8) and provided with a fulcrum shaft (32) for supporting the cutting part (8) in a laterally movable manner,
The mowing part (8) is supported by the shaft body (12), and the mowing part (8) is moved up and down around the shaft body (12), while the mowing part (8) is moved laterally around the fulcrum shaft (32). A combine that is rotated to open the front side of the threshing section (4) and the side of the cab (18). 前記刈取部（８）を、メインビーム（３４）を介して前記軸体（１２）に支持させると共に、刈取部（８）を昇降させる油圧昇降シリンダ（１１）を備え、
昇降シリンダ（１１）をメインビーム（３４）に対して機体右寄りに配設し、
刈取部（８）重心位置を通過する前後方向中心線上に昇降シリンダ（１１）を取付け、昇降シリンダ（１１）によって刈取部（８）重心位置を支えるように構成した請求項１に記載のコンバイン。 A hydraulic lifting cylinder (11) for supporting the cutting part (8) on the shaft body (12) via a main beam (34) and raising and lowering the cutting part (8);
The elevating cylinder (11) is arranged on the right side of the aircraft with respect to the main beam (34),
The combine of Claim 1 comprised so that a raising / lowering cylinder (11) may be attached on the front-rear direction centerline which passes a cutting part (8) gravity center position, and a cutting part (8) center of gravity position may be supported by the raising / lowering cylinder (11). 前記刈取部（８）を、メインビーム（３４）を介して前記軸体（１２）に支持させると共に、刈取部（８）を昇降させる油圧昇降シリンダ（１１）を備え、
昇降シリンダ（１１）をメインビーム（３４）に対して機体右寄りに配設し、
刈取駆動力が伝えられる刈取入力プーリ（３７）を前記軸体（１２）の右側に設けると共に、刈取入力プーリ（３７）に伝えられた刈取駆動力をメインビーム（３４）を介して刈取部（８）各部に駆動力を伝えるようになっており、
昇降シリンダ（１１）を、平面視でメインビーム（３４）と刈取入力プーリ（３７）の間に位置させ、昇降シリンダ（１１）によって刈取部（８）重心位置を支えるように構成した請求項１に記載のコンバイン。 A hydraulic lifting cylinder (11) for supporting the cutting part (8) on the shaft body (12) via a main beam (34) and raising and lowering the cutting part (8);
The elevating cylinder (11) is arranged on the right side of the aircraft with respect to the main beam (34),
A cutting input pulley (37) to which the cutting driving force is transmitted is provided on the right side of the shaft body (12), and the cutting driving force transmitted to the cutting input pulley (37) is transferred to the cutting unit (through the main beam (34)). 8) The driving force is transmitted to each part.
The lifting cylinder (11) is positioned between the main beam (34) and the cutting input pulley (37) in a plan view, and is configured to support the position of the center of gravity of the cutting part (8) by the lifting cylinder (11). Combine as described in.

Images