JP2004248680A - Combine harvester - Google Patents

Combine harvester Download PDF

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JP2004248680A
JP2004248680A JP2004133260A JP2004133260A JP2004248680A JP 2004248680 A JP2004248680 A JP 2004248680A JP 2004133260 A JP2004133260 A JP 2004133260A JP 2004133260 A JP2004133260 A JP 2004133260A JP 2004248680 A JP2004248680 A JP 2004248680A
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cutting
belt
transmission case
pulley
engine
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Akihiko Nakaya
昭彦 中矢
Shigeru Nakada
茂 中田
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Yanmar Co Ltd
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Yanmar Agricultural Equipment Co Ltd
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Priority to JP2004133260A priority Critical patent/JP2004248680A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a combine harvester having its engine and mission case near the center of a machine body, capable of setting a reaping input case behind the mission case, improving lateral balance and longitudinal balance and having improved running performance in an ill-drained paddy field. <P>SOLUTION: The combine harvester has a traverse fulcrum of a reaping part at one side of a lifting fulcrum supporting the reaping part freely liftably and has a reaping input pulley, for transmitting power to the reaping part, at the other side of the shaft. <P>COPYRIGHT: (C)2004,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 cutting section and a threshing section and continuously cuts and threshes grain culms.

従来、エンジンからミッションケースに走行駆動力を伝える走行ベルトと、ミッションケースから刈取部に刈取駆動力を伝える刈取ベルトを備えると共に、脱穀部前側の機台上に架台を介して刈取1軸ケースを設け、刈取1軸ケースの右側に設ける刈取入力プーリから刈取部の駆動ケースを介して刈取部各部に駆動力を伝える技術がある。(例えば、特許文献1参照)   Conventionally, a traveling belt that transmits driving power from the engine to the transmission case, and a cutting belt that transmits cutting driving power from the transmission case to the cutting unit, and a single shaft case through a mount on a machine in front of the threshing unit are provided. There is a technique in which a driving force is transmitted from a cutting input pulley provided on the right side of a single shaft case to a cutting unit via a driving case of the cutting unit. (For example, see Patent Document 1)

実開昭63−112425号公報Japanese Utility Model Publication No. Sho 63-112425

前記従来技術は、左右走行クローラを装設させる機台上に脱穀部を搭載し、刈取入力ケース及び駆動ケースを介して刈取部を脱穀部の前方に昇降自在に配置させる構造において、左右走行クローラの間に刈取部の駆動ケースとミッションケースとを左右に位置をずらせて設けることにより、前後方向に延設させる前記駆動ケースとミッションケースの干渉を防止できる。また、刈取入力ケースの右端側に前記駆動ケースの後端を連結させることにより、前後方向に延設させる前記駆動ケースの前側に刈取部の左右幅の中央付近を連結できる。しかし乍ら、刈取ベルトを走行ベルトよりも平面視で左側に設ける前記の従来技術は、刈取入力ケースの右側に設ける刈取入力プーリよりもさらに右側に走行ベルトが張設され、走行ベルトの設置スペースの確保により刈取入力プーリに対して右側に離間させてミッションケースを配置させる必要があり、また走行ベルトを懸架させるエンジンの出力プーリの設置スペースの確保によりミッションケースに対してエンジンを右寄りに配置させる必要があり、しかも刈取部の刈り幅によって左右走行クローラの設置幅が決定されるから、結果的に、エンジン及びミッションケースの荷重を右側の走行クローラが大きく負担することになり、しかも、右側の走行クローラには、運転席の作業者並びに脱穀部から収集された穀粒の重量が負荷されるから、機体の左右バランスの向上並びに湿田走行性能の向上などを容易に図り得ない等の問題がある。   The above-mentioned prior art includes a structure in which a threshing unit is mounted on a machine on which a left and right traveling crawler is mounted, and a cutting unit is arranged to be movable up and down in front of the threshing unit via a cutting input case and a drive case. By interposing the drive case and the transmission case of the mowing part between right and left, the interference between the drive case and the transmission case extending in the front-rear direction can be prevented. Further, by connecting the rear end of the drive case to the right end side of the reaping input case, it is possible to connect the vicinity of the center of the left and right widths of the reaper to the front side of the drive case extending in the front-rear direction. However, in the above-mentioned prior art in which the cutting belt is provided on the left side of the traveling belt in plan view, the traveling belt is stretched further to the right side of the cutting input pulley provided on the right side of the cutting input case, and the installation space for the traveling belt is provided. It is necessary to dispose the transmission case to the right side with respect to the cutting input pulley by securing the engine, and to arrange the engine to the right of the transmission case by securing the installation space for the output pulley of the engine that suspends the traveling belt. Since the installation width of the right and left traveling crawlers is determined by the cutting width of the reaping unit, as a result, the load on the engine and the transmission case is greatly borne by the right traveling crawler, and The traveling crawler is loaded with the weight of the grain collected from the operator in the driver's seat and the threshing unit. Al, there are problems such that not aim to facilitate and improve the improvement and Shitsuden running performance of the left and right balance of the body.

然るに、本発明は、請求項1の如く、刈取部を昇降自在に支える昇降支点の一側部に刈取部の横移動支点を設け、刈取部に動力を伝える刈取入力プーリを前記軸体の他側部に設けることを特徴とする。   However, according to the present invention, a lateral movement fulcrum of the mowing portion is provided on one side of a lifting fulcrum that supports the mowing portion so that the mowing portion can be raised and lowered, and a mowing input pulley for transmitting power to the mowing portion is provided on the other side of the shaft body. It is characterized by being provided on the side.

また、請求項2の如く、エンジンの前側にミッションケースを略直列に設け、エンジンの出力プーリと、ミッションケースの入力プーリとを走行ベルトを介して連結させ、エンジンの出力プーリと脱穀入力プーリとを脱穀ベルトを介して連結させ、ミッションケースの刈取プーリに前記刈取入力プーリを刈取ベルトを介して連結させることを特徴とする。   Further, as in claim 2, a transmission case is provided substantially in series on the front side of the engine, an output pulley of the engine and an input pulley of the transmission case are connected via a traveling belt, and an output pulley and a threshing input pulley of the engine are connected to each other. Are connected via a threshing belt, and the cutting input pulley is connected to a cutting pulley of the transmission case via a cutting belt.

また、請求項3の如く、昇降支点に連結させる刈取部の駆動伝達ケースとミッションケースとの間に、走行ベルト及び刈取ベルトを、平面視で駆動伝達ケースと略平行に延設させることを特徴とする。   According to a third aspect of the present invention, the running belt and the reaping belt are extended substantially parallel to the drive transmission case in a plan view between the drive transmission case and the transmission case of the reaper connected to the lifting fulcrum. And

また、請求項4の如く、エンジンからミッションケースに走行駆動力を伝える走行ベルトと、ミッションケースから刈取部に刈取駆動力を伝える刈取ベルトを備えると共に、脱穀部前側の機台上に架台を介して刈取入力ケースを設け、刈取入力ケースの一側に設ける刈取入力プーリから刈取部の刈取入力ケースを介して刈取部各部に駆動力を伝えるコンバインにおいて、エンジンの前方にミッションケースを配置させてこれらの一側に前記走行ベルトを張設させ、前記ミッションケースと刈取入力プーリとの間に刈取ベルトを張設させ、刈取入力プーリを走行ベルトよりも平面視でミッションケースに近い位置に設けることを特徴とする。   Further, as in claim 4, a running belt for transmitting running driving force from the engine to the transmission case, and a cutting belt for transmitting cutting driving force from the transmission case to the cutting section are provided, and a gantry is provided on the machine in front of the threshing section via a mount. A transmission case is provided in front of the engine in a combine that transmits a driving force from the cutting input pulley provided on one side of the cutting input case to the cutting section via the cutting input case of the cutting section. The traveling belt is stretched on one side, a cutting belt is stretched between the transmission case and the cutting input pulley, and the cutting input pulley is provided at a position closer to the transmission case in plan view than the traveling belt. Features.

請求項1に係る発明は、刈取部を昇降自在に支える昇降支点の一側部に刈取部の横移動支点を設け、刈取部に動力を伝える刈取入力プーリを前記軸体の他側部に設けるもので、エンジンとミッションケースを前後方向の直線上に配設でき、また走行ベルトを挾んでミッションケースと反対側に刈取部の駆動伝達ケースを配設でき、エンジン及びミッションケースを機体中央寄りに設ける構造でミッションケースよりも後方に昇降支点を設置でき、機体の左右バランス及び前後バランスを向上させることができ、湿田走行性能を向上させることができるものである。   According to the first aspect of the present invention, a lateral movement fulcrum of the mowing portion is provided on one side of a lifting fulcrum that supports the mowing portion so as to be able to move up and down, and a mowing input pulley for transmitting power to the mowing portion is provided on the other side portion of the shaft body. The engine and the transmission case can be arranged on a straight line in the front-rear direction, and the drive transmission case of the mowing part can be arranged on the opposite side of the transmission case across the running belt. With this structure, the lifting fulcrum can be installed behind the transmission case, the left-right balance and the front-rear balance of the body can be improved, and the wetland traveling performance can be improved.

また、請求項2に係る発明は、エンジンの前側にミッションケースを略直列に設け、エンジンの出力プーリと、ミッションケースの入力プーリとを走行ベルトを介して連結させ、エンジンの出力プーリと脱穀入力プーリとを脱穀ベルトを介して連結させ、ミッションケースの刈取プーリに前記刈取入力プーリを刈取ベルトを介して連結させるもので、エンジンとミッションケースを前後方向の直線上に配設でき、また走行ベルトを挾んでミッションケースと反対側に刈取部の駆動伝達ケースであるビームを配設でき、エンジン及びミッションケースを機体中央寄りに設ける構造でミッションケースよりも後方に刈取入力ケースを設置でき、機体の左右バランス及び前後バランスを向上させることができ、湿田走行性能を向上させることができるものである。   Further, according to the invention according to claim 2, a transmission case is provided substantially in series on the front side of the engine, an output pulley of the engine and an input pulley of the transmission case are connected via a traveling belt, and the output pulley of the engine is connected to the threshing input. A pulley is connected via a threshing belt, and the cutting input pulley is connected to a cutting pulley of the transmission case via a cutting belt.The engine and the transmission case can be arranged on a straight line in the front-rear direction. The beam which is the drive transmission case of the mowing part can be arranged on the opposite side of the transmission case with the engine in between and the transmission case is located near the center of the fuselage. Left and right balance and front and rear balance can be improved, and wet field running performance can be improved It is intended.

また、請求項3に係る発明は、昇降支点に連結させる刈取部の駆動伝達ケースとミッションケースとの間に、走行ベルト及び刈取ベルトを、平面視で駆動伝達ケースと略平行に延設させるもので、エンジンとミッションケースを前後方向の直線上に配設でき、また走行ベルトを挾んでミッションケースと反対側に刈取部のビームを配設でき、エンジン及びミッションケースを機体中央寄りに設ける構造でミッションケースよりも後方に刈取入力ケースを設置でき、機体の左右バランス及び前後バランスを向上させることができ、湿田走行性能を向上させることができるものである。   According to a third aspect of the present invention, the traveling belt and the reaping belt extend substantially parallel to the drive transmission case in plan view between the drive transmission case and the transmission case of the reaper connected to the lifting fulcrum. The engine and the transmission case can be arranged on a straight line in the front-rear direction, and the beam of the mowing part can be arranged on the opposite side of the transmission case across the running belt. The mowing input case can be installed behind the transmission case, the left-right balance and the front-rear balance of the body can be improved, and wetland traveling performance can be improved.

また、請求項4に係る発明は、エンジンからミッションケースに走行駆動力を伝える走行ベルトと、ミッションケースから刈取部に刈取駆動力を伝える刈取ベルトを備えると共に、脱穀部前側の機台上に架台を介して刈取入力ケースを設け、刈取入力ケースの一側に設ける刈取入力プーリから刈取部の刈取入力ケースを介して刈取部各部に駆動力を伝えるコンバインにおいて、エンジンの前方にミッションケースを配置させてこれらの一側に前記走行ベルトを張設させ、前記ミッションケースと刈取入力プーリとの間に刈取ベルトを張設させ、刈取入力プーリを走行ベルトよりも平面視でミッションケースに近い位置に設けるもので、エンジンとミッションケースを前後方向の直線上に配設でき、また走行ベルトを挾んでミッションケースと反対側に刈取部の駆動伝達ケースであるビームを配設でき、エンジン及びミッションケースを機体中央寄りに設ける構造でミッションケースよりも後方に刈取入力ケースを設置でき、機体の左右バランス及び前後バランスを向上させることができ、湿田走行性能を向上させることができるものである。   In addition, the invention according to claim 4 includes a traveling belt that transmits traveling driving force from the engine to the transmission case, a cutting belt that transmits cutting driving force from the transmission case to the cutting unit, and a gantry mounted on the machine stand in front of the threshing unit. A transmission case is disposed in front of the engine in a combine that transmits a driving force from a cutting input pulley provided on one side of the cutting input case to each section of the cutting section via the cutting input case of the cutting section. The cutting belt is stretched between the transmission case and the cutting input pulley, and the cutting input pulley is provided at a position closer to the transmission case in plan view than the running belt. The engine and the transmission case can be arranged in a straight line in the front-rear direction. The beam which is the drive transmission case of the mowing unit can be arranged on the opposite side, and the engine and the transmission case are arranged near the center of the fuselage, so the mowing input case can be installed behind the transmission case, and the left-right balance and the front-rear balance of the aircraft Thus, the wet field running performance can be improved.

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。   Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a plan view of a lifting / lowering fulcrum cylindrical shaft portion of a mowing unit, FIG. 2 is a side view of the whole, and FIG. 3 is a plan view of the same. The machine frame installed on the track frame 1, 4 is a threshing unit that stretches the feed chain 5 on the left side and includes the handling cylinder 6 and the processing cylinder 7, 8 includes a cutting blade 9 and a grain culm transport mechanism 10, and the like. A cutting unit 11 is a hydraulic lifting cylinder that raises and lowers the cutting unit 8 via a lifting fulcrum cylindrical shaft 12, 13 is a straw processing unit that faces the end of a straw chain 14, and 15 is the grain from the threshing unit 4. A grain tank carried in via a tube 16, a discharge auger 17 for carrying out the grains of the tank 15 out of the machine, a cab 18 having an operation section 19 and a cab 20, and 21 provided below the cab 20 It is an engine that continuously harvests thresh and thresh Forms.

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 the left and right traveling crawlers 2 are stretched on both sides of the transmission case 22 via driving sprockets 23. A traveling belt 27 is stretched between an output pulley 24 of the engine 21 and an input pulley 25 of the transmission case 22 via a traveling tension roller clutch 26, and a traveling driving force is transmitted to the transmission case 22 by the traveling belt 27. Thus, a tension spring 29 is stretched through a column 28 that stands upright on the machine base 3, and the clutch 29 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, the left and right mounts 30 and 31 for supporting the mowing unit 8 are fixed to the front upper surface of the machine base 3, and the horizontal fulcrum shaft 32 at the left end of the lifting and lowering fulcrum cylindrical shaft 12 is rotatably supported by the left gantry 30. The right end of the cylindrical shaft 12 is detachably fitted to the right frame 31, and the cutting unit 8 is connected to the main beam 34 through which the cutting drive shaft 33 is inserted and the transport support pipe 36 through which the transport driving shaft 35 is inserted. The reaping unit 8 is supported by the cylindrical shaft 12, and the reaping unit 8 is moved up and down about the cylindrical shaft 12, while the reaping unit 8 is rotated substantially horizontally about the fulcrum shaft 32, and the reaping unit 8 is rotated horizontally to the left side of the machine body. The front side of the threshing unit 4 and the left side of the cab 18 are opened to perform maintenance and the like of each unit. A cutting input pulley 37 is provided at the right end of the cylindrical shaft 12, and a cutting pulley of the transmission case 22 synchronized with the traveling speed. 38 and the input pulley 7 is tensioned the reaper belt 40 via the tension roller clutch 39 reaper during, and configured to drive the reaper 8 Part via the belt 40.

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 fixedly mounted on the machine base 3 behind the cylinder shaft 12 via a frame 41, a threshing input pulley 43 is provided at the right end of the cylinder 42, and the threshing input pulley 24 of the engine 21 A threshing belt 45 is stretched between the input pulleys 43 via a threshing tension roller clutch 44 to drive the respective parts of the threshing unit 4 via the belt 45. And a cutting pulley 38 is disposed between the left side of the transmission case 22 and the traveling belt 27, and the right gantry 31 is disposed close to the left side of the output pulley 24. The right side of the cylinder shaft 12 is crossed in a plan view.

上記から明らかなように、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 is apparent from the above description, it is provided with a traveling belt 27 for transmitting the driving power from the engine 21 to the transmission case 22 and a cutting belt 40 for transmitting the driving power from the transmission case 22 to the cutting unit 8. The raising / lowering fulcrum cylindrical shaft 12 which is a single-shaft cutting case is provided on the base 3 through the mounts 30 and 31, and a cutting input pulley 37 provided on the right side of the vertical supporting fulcrum cylindrical shaft 12 through a main beam 34 which is a two-shaft cutting case. In the combine for transmitting the driving force to each part of the cutting unit 8, the transmission case 22 is disposed in front of the engine 21, and the running belt 27 is stretched to the left side of the transmission case 22. The cutting input pulley 37 to be stretched is provided on the right side of the traveling belt 27 in plan view. Then, the engine 21 and the transmission case 22 are disposed on a straight line in the front-rear direction, and the main beam 34 is disposed on the opposite side of the transmission case 22 with the traveling belt 27 therebetween. The lifting / lowering fulcrum cylinder shaft 12 is provided behind the transmission case 22 with a structure provided on the side, and the left-right balance and the front-rear balance of the body are improved.

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 substrate 46 is fixedly provided on the left side of the engine 21, a lower bracket 47 is fixed to the substrate 46, and the traveling belt 27 on the lower front side of the output pulley 24 is supported. The lower bracket 47 is provided with a U-shaped lower fixed belt presser 48, and a horizontally elongated frame 49 is fixed to the base 46 on the left side of the engine 21 and substantially parallel to the belts 27 and 45. A round bar-shaped upper fixed belt retainer 51 for supporting the traveling belt 27 on the front upper side of the output pulley 24 and a disc 52 for supporting a threshing belt 45 on the rear upper side of the output pulley 24. A fixed belt presser 53 is provided on the upper bracket 50, and when the upper and lower fixed belt pressers 48 and 51 limit the wave (dancing) of the traveling belt 27, It is configured so as to surround the upper and left sides of the threshing belt 45 by, circular plate 52 and the fixed belt presser 53.

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, the base end of the belt presser 55 is rotatably attached to the bearing 49a of the horizontal frame 49 via the fulcrum shaft 54 back and forth so that the traveling belt 27 on the rear side and the lower side of the output pulley 24 comes off from the pulley 24. At the tip of the belt presser 55, a plate-like traveling belt presser 56 for preventing the threshing belt 45 and a bar-shaped threshing belt presser 57, 58 for preventing the threshing belt 45 at the lower rear side of the output pulley 24 from coming off the pulley 24 are provided. At the same time, the mounting arm 59 of the belt presser 55 and the front end of the horizontal frame 49 are extended into an open space in front of the right frame 31, and the fixing arm 59 is detachably fixed to the horizontal frame 49 by bolts 60. The belt presser 55 is detachably connected to and fixed to the fuselage via the frame 49, and is close to the belts 27 and 45 by attaching and detaching the bolts 60. The belt holding body 55 is rotated and the belt 27 wave of the fixed belt holders 48 and 51 is moved between an operating position where the belt 27 and the belt 27 and 45 are separated from each other and a non-operating position where the belt 27 and 45 can be replaced. By the prevention, the running belt presser 56 is arranged close to the running belt 27 so as to reduce the gap between the belt 27 and the belt presser 56.

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 transmission case 22 is protruded to form a bearing portion 22a of the input pulley 25, and the input pulley 25 and the cutting pulley 38 are overlapped in a side view, so that cutting is performed. The front side of the pulley 38 and the bearing portion 22a are brought close to each other to use the portion 22a as a belt retainer, and the fulcrum shaft 62 of the tension arm 61 supporting the traveling tension roller clutch 26 is fixed to the bearing portion 22a. The fulcrum shaft 62 is supported by a cylinder 64, and the fulcrum shaft 62 is arranged close to the cutting belt 40 on the rear upper side of the cutting pulley 38, and also serves as a belt retainer. The cutting belt 40 is compactly arranged by effectively utilizing the periphery of the transmission case 22. A cutting belt retainer 65 that supports the cutting belt 40 at the lower rear side of the cutting pulley 38 is bolted to the side of the transmission case 22. 6 is fastened, it is configured to perform the detaching replacement of the belt 40 reaper to desorb the cutting belt presser 65.

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 FIG. 1, the traveling belt 27 that transmits the driving force to the transmission case 22 and the cutting belt 40 that transmits the cutting driving force to the cutting unit 8 are provided, and the horizontal unit rotatably supports the cutting unit 8. In the combine where the fulcrum shaft 32 is provided, the cutting belt 40 is disposed between the transmission case 22 and the traveling belt 27 in a plan view, and the cutting input pulley 37 for extending the cutting belt 40 located on the rightmost side of the cutting unit 8 is located on the front side. The tension spring 29 of the running belt 27 is provided at substantially the same height as the pulley 37, and the tension spring 29 is provided in proximity to the horizontal rotation locus 67 of the cutting input pulley 37 about the horizontal fulcrum shaft 32. Then, the upper end side of the tension spring 29 is extended in the right direction of the machine body, and the tension spring 29 is stretched by inclining rightward, and the mowing is performed. Is brought closer to the 該接 line tangential and substantially parallel horizontal rotation locus 67 forces the pulley 37 is arranged a tension spring 29 constitute a tension spring 29 against cutting belt 40 so as to obliquely interlinked in a 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。   Further, as shown in FIGS. 10 and 11, a mowing lifting 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 71, and the inclined upper ends of the fixed plate 68 and the movable plate 69 are rotatably connected by fixed pins 72, and the lifting cylinder 11 is connected to the track frame 1 via a support shaft 73. The tip of a piston rod 74 of the cylinder 11 is connected to an intermediate portion of a movable plate 69 via a pin 75, and the pin 75 is removably inserted into the piston rod 74 through an opening 76 of the movable plate 69, thereby removing the movable plate. A pin 75 is fixedly secured to the fixing plate 68 by a bolt 77, and a pin 80 is removably inserted into the fixed plate 68 and the opening 78, 79 on the inclined lower end side of the movable plate 69. The pin 80 is fixedly fastened by a bolt 81. As shown in FIG. 11, fixed plates 68 and movable plates 69 are alternately arranged in a staggered manner, and a bracket 70 is provided on the lower surface on the right side of the main beam 34. The lifting cylinder 11 is disposed on the right side of the machine body, and the lifting cylinder 11 is mounted on the center line in the front-rear direction passing through the position of the center of gravity of the reaping unit 8, and the lifting cylinder 11 is positioned between the main beam 34 and the reaping input pulley 37 in plan view. The main beam 34 is separated from the cutting belt 40, and the position of the center of gravity of the cutting unit 8 is supported by the lifting cylinder 11.

上記から明らかなように、刈取部8を昇降自在に支える昇降支点である昇降支点筒軸12の一側部に刈取部8の横移動支点である水平支点軸32を設け、刈取部8に動力を伝える刈取入力プーリ37を前記軸体12の他側部に設ける。また、エンジン21の前側にミッションケース22を略直列に設け、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とを走行ベルト27を介して連結させ、エンジン21の出力プーリ24と脱穀入力プーリ43とを脱穀ベルト45を介して連結させ、ミッションケース22の刈取プーリ38に前記刈取入力プーリ37を刈取ベルト40を介して連結させる。また、昇降支点筒軸12に連結させる刈取部8の駆動伝達ケースであるメインビーム34とミッションケース22との間に、走行ベルト27及び刈取ベルト40を、平面視でメインビーム34と略平行に延設させる。また、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を介して刈取入力ケース12を設け、刈取入力ケース12の一側に設ける刈取入力プーリ37から刈取部8の刈取入力ケース12と駆動伝達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一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と刈取入力プーリ37との間に刈取ベルト40を張設させ、刈取入力プーリ37を走行ベルト27よりも平面視でミッションケース22に近い位置に設けるもので、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でき、また走行ベルト27を挾んでミッションケース22と反対側に刈取部8の駆動伝達ケースであるビーム34を配設でき、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である刈取入力ケース12を設置でき、機体の左右バランス及び前後バランスを向上させることができ、湿田走行性能を向上させることができるものである。   As is apparent from the above description, a horizontal fulcrum shaft 32, which is a lateral movement fulcrum of the cutting unit 8, is provided on one side of the lifting fulcrum cylindrical shaft 12, which is a lifting fulcrum, which supports the reaping unit 8 so as to be able to move up and down. Is provided on the other side of the shaft 12. Further, a transmission case 22 is provided substantially in front of the engine 21, and an output pulley 24 of the engine 21 and an input pulley 25 of the transmission case 22 are connected via a traveling belt 27. The input pulley 43 is connected via a threshing belt 45, and the cutting input pulley 37 is connected to a cutting pulley 38 of the transmission case 22 via a cutting belt 40. Further, between the transmission case 22 and the main beam 34, which is a drive transmission case of the cutting unit 8 connected to the lifting fulcrum cylinder shaft 12, the traveling belt 27 and the cutting belt 40 are substantially parallel to the main beam 34 in plan view. Extend it. Further, a traveling belt 27 for transmitting the driving power from the engine 21 to the transmission case 22 and a cutting belt 40 for transmitting the driving power from the transmission case 22 to the cutting unit 8 are provided, and a gantry is mounted on the machine base 3 in front of the threshing unit 4. The cutting input case 12 is provided via the cutting input case 12 and the cutting input pulley 37 provided on one side of the cutting input case 12 via the cutting input case 12 of the cutting unit 8 and the main beam 34 which is a drive transmission case. In the combine for transmitting the driving force to each part, the transmission case 22 is disposed in front of the engine 21 and the traveling belt 27 is stretched on one side thereof, and a cutting belt is provided between the transmission case 22 and the cutting input pulley 37. 40, and the cutting input pulley 37 is set closer to the transmission case 22 in plan view than the traveling belt 27. The engine 21 and the transmission case 22 can be arranged on a straight line in the front-rear direction, and the beam 34 which is a drive transmission case of the reaper 8 can be arranged on the opposite side of the transmission case 22 across the traveling belt 27. , The engine 21 and the transmission case 22 are provided near the center of the fuselage, and the reaping input case 12, which is a lifting fulcrum, can be installed behind the transmission case 22, so that the left-right balance and the front-rear balance of the body can be improved. The performance can be improved.

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。FIG. 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 transmission 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 reference numerals

3 機台
4 脱穀部
8 刈取部
12 昇降支点筒軸(昇降支点)
21 エンジン
22 ミッションケース
24 出力プーリ
25 入力プーリ
27 走行ベルト
30・31 架台
32 水平支点軸(横移動支点)
34 メインビーム(駆動伝達ケース)
37 刈取入力プーリ
38 刈取プーリ
40 刈取ベルト
43 脱穀入力プーリ
45 脱穀ベルト
3 Machine stand 4 Threshing unit 8 Harvesting unit 12 Elevating fulcrum cylinder shaft (elevating fulcrum)
Reference Signs List 21 engine 22 transmission case 24 output pulley 25 input pulley 27 running belt 30/31 gantry 32 horizontal fulcrum axis (lateral movement fulcrum)
34 Main beam (drive transmission case)
37 Cutting input pulley 38 Cutting pulley 40 Cutting belt 43 Threshing input pulley 45 Threshing belt

Claims (4)

刈取部8を昇降自在に支える昇降支点12の一側部に刈取部8の横移動支点32を設け、刈取部8に動力を伝える刈取入力プーリ37を前記軸体12の他側部に設けることを特徴とするコンバイン。   A lateral movement fulcrum 32 of the mowing part 8 is provided on one side of the lifting fulcrum 12 that supports the mowing part 8 so that the mowing part 8 can be raised and lowered, and a mowing input pulley 37 for transmitting power to the mowing part 8 is provided on the other side of the shaft body 12. A combine. エンジン21の前側にミッションケース22を略直列に設け、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とを走行ベルト27を介して連結させ、エンジン21の出力プーリ24と脱穀入力プーリ43とを脱穀ベルト45を介して連結させ、ミッションケース22の刈取プーリ38に前記刈取入力プーリ37を刈取ベルト40を介して連結させることを特徴とする請求項1に記載のコンバイン。   A transmission case 22 is provided in front of the engine 21 substantially in series, and an output pulley 24 of the engine 21 and an input pulley 25 of the transmission case 22 are connected via a traveling belt 27. The output pulley 24 of the engine 21 and the threshing input pulley The combine according to claim 1, wherein the cutting input pulley (37) is connected to a cutting pulley (38) of the transmission case (22) via a cutting belt (40). 昇降支点12に連結させる刈取部8の駆動伝達ケース34とミッションケース22との間に、走行ベルト27及び刈取ベルト40を、平面視で駆動伝達ケース34と略平行に延設させることを特徴とする請求項2に記載のコンバイン。   The running belt 27 and the reaping belt 40 extend substantially parallel to the drive transmission case 34 in a plan view between the drive transmission case 34 and the transmission case 22 of the reaper 8 connected to the lifting fulcrum 12. The combine according to claim 2. 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を介して刈取入力ケース12を設け、刈取入力ケース12の一側に設ける刈取入力プーリ37から刈取部8の刈取入力ケース12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一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と刈取入力プーリ37との間に刈取ベルト40を張設させ、刈取入力プーリ37を走行ベルト27よりも平面視でミッションケース22に近い位置に設けることを特徴とするコンバイン。   A traveling belt 27 for transmitting the driving power from the engine 21 to the transmission case 22, a cutting belt 40 for transmitting the driving power from the transmission case 22 to the cutting unit 8, and a gantry 30 on the machine 3 in front of the threshing unit 4. The cutting input case 12 is provided via the cutting input case 12, and a driving force is transmitted from the cutting input pulley 37 provided on one side of the cutting input case 12 to each section of the cutting section 8 via the cutting input case 12 of the cutting section 8. , The traveling belt 27 is stretched on one side thereof, and a reaping belt 40 is stretched between the transmission case 22 and the reaping input pulley 37. A combine provided at a position closer to the transmission case 22 in plan view than the traveling belt 27.
JP2004133260A 2004-04-28 2004-04-28 Combine harvester Pending JP2004248680A (en)

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