JP2010051217A - Combined harvester - Google Patents

Combined harvester Download PDF

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JP2010051217A
JP2010051217A JP2008218567A JP2008218567A JP2010051217A JP 2010051217 A JP2010051217 A JP 2010051217A JP 2008218567 A JP2008218567 A JP 2008218567A JP 2008218567 A JP2008218567 A JP 2008218567A JP 2010051217 A JP2010051217 A JP 2010051217A
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cutting
sub
lifting
main cutting
state
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Taiichiro Azuma
泰一郎 東
Masahiro Itakura
昌広 板倉
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Kubota Corp
株式会社クボタ
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Priority to JP2008218567A priority Critical patent/JP2010051217A/en
Priority claimed from CN2008101692930A external-priority patent/CN101507387B/en
Publication of JP2010051217A publication Critical patent/JP2010051217A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a combined harvester having a simplified structure and reduced cost by reducing various sensors, for controlling the reap height of an auxiliary cutting device separately from or associating with control of the reap height of a main cutting device. <P>SOLUTION: In the combined harvester, the main cutting device 32 is configured to be freely lifted up and down relative to a traveling machine body, and the auxiliary cutting device 41 is configured to be lifted up and down by being supported by a lifting up and down frame 40 swingably mounted on the traveling machine body side. The combined harvester includes engaging means 5 switchably operating the engagement of the lifting up and down of the auxiliary cutting device 41 relative to the main cutting device 32 between the engaging state in which the auxiliary cutting device 41 is lifted up and down in association with lifting up and down of the main cutting device 32, and a disengaging state in which the auxiliary cutting device 41 is freely lifted up and down separately and independently from the lifting up and down of the main cutting device 32. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、植立茎稈の上部を刈り取る主切断装置と、主切断装置よりも低い位置で植立茎稈に作用する副切断装置とを設けてあるコンバインに関する。   The present invention relates to a combine provided with a main cutting device that cuts an upper portion of a planted stem and a sub-cutting device that acts on the planted stem at a position lower than the main cutting device.
上記のように、植立茎稈の上部を刈り取る主切断装置と、主切断装置よりも低い位置で植立茎稈に作用する副切断装置との二種の切断装置を備えているのは、茎稈の着粒部のみを脱穀装置に投入するために主切断装置で着粒部を刈り取り、着粒部より下側の茎稈部分は脱穀装置へ投入しないで圃場に放出するように副切断装置で株元部分を切断するためである。
この種のコンバインとしては、下記[1]及び[2]に記載の構造のものが従来より知られている。
[1] 主切断装置を備えた刈取フレームに副切断装置を取り付けて、主切断装置の刈高さ調節操作にともなって、副切断装置の刈高さも同調して昇降制御される状態と、主刈取装置の刈高さ調節操作とは別に副切断装置独自の高さ調節が行われる状態と、刈取部全体の対地レベルが所定高さ以上であると、副切断装置を自動的に格納位置にまで上昇させるように構成したもの(例えば特許文献1参照)。
[2] 主切断装置を備えた刈取フレームに副切断装置を取り付けて、主切断装置の刈高さ調節操作にともなって、副切断装置の刈高さも同調して昇降制御されるように構成し、かつ、副切断装置に接地橇体を設けて、その接地橇体の動作をポテンショメータで検出することにより副切断装置を独自で昇降制御するようにしたもの(例えば特許文献2参照)。
As described above, it is provided with two types of cutting devices, a main cutting device that reaps the upper part of the planted stalk and a secondary cutting device that acts on the planted stalk at a position lower than the main cutting device. In order to feed only the granulation part of the stalks into the threshing device, the granulation part is cut by the main cutting device, and the stalk portion below the granulation part is sub-cut so that it is released into the field without being put into the threshing device. This is for cutting the stock portion with the apparatus.
As this type of combine, those having the structures described in the following [1] and [2] are conventionally known.
[1] A state in which a secondary cutting device is attached to a cutting frame equipped with a primary cutting device, and the cutting height of the secondary cutting device is controlled to move up and down in synchronization with the cutting height adjustment operation of the primary cutting device; When the height of the secondary cutting device is adjusted separately from the cutting height adjustment operation of the cutting device, and when the ground level of the entire cutting unit is higher than the predetermined height, the secondary cutting device is automatically placed in the storage position. (For example, refer to Patent Document 1).
[2] A sub-cutting device is attached to a cutting frame having a main cutting device, and the cutting height of the sub-cutting device is controlled to move up and down in synchronization with the cutting height adjustment operation of the main cutting device. In addition, the sub-cutting device is provided with a grounding housing, and the operation of the grounding housing is detected by a potentiometer so that the sub-cutting device is controlled up and down independently (for example, see Patent Document 2).
特開平7−147828号公報(段落番号〔0012〕、図1、及び図2)JP-A-7-147828 (paragraph number [0012], FIG. 1 and FIG. 2) 特開平7−155044号公報(段落番号〔0017〕,〔0019〕、図1、及び図5)Japanese Patent Laid-Open No. 7-155044 (paragraph numbers [0017], [0019], FIG. 1 and FIG. 5)
上記[1]及び[2]に記載の従来構造のものでは、主切断装置での刈高さを適正に保つために刈高さ調節を行うと、それに連動して副切断装置の刈取作用位置の高さも変化してしまう。
このため、副切断装置による刈高さを適正に保つために、前記特許文献1に記載の構造のものでは、刈取フレーム全体の揺動作動を検出するポテンショメータと、刈取フレームに対する副切断装置の相対高さを検出するポテンショメータと、両ポテンショメータの検出値から適正調節代を演算する制御装置を備え、その制御装置からの出力で作動される油圧シリンダを用いて、副切断装置の適正高さを得られるように制御していた。
この構造によれば、主切断装置による刈高さ変更にかかわらず、副切断装置の刈高さを自動的に調節可能である点で有用である。しかしながら、このように複数のポテンショメータや各種制御装置、ならびに制御用のアクチュエータを要するものであるため、副切断装置の調節作動を制御するための構造が複雑で、かつ高価な部品点数も多くて低コスト化が困難なものであった。
また、副切断装置の高さ制御が主切断装置との相対位置の制御で行われるものであるため、実際の圃場面の凹凸状況などによっては、十分に茎稈を地面近くで切断し難い場合もある。
In the conventional structure described in [1] and [2] above, when the cutting height is adjusted in order to keep the cutting height at the main cutting device properly, the cutting operation position of the auxiliary cutting device is interlocked with the adjustment. The height of will also change.
For this reason, in order to keep the cutting height by the auxiliary cutting device appropriate, in the structure described in Patent Document 1, the potentiometer for detecting the swinging operation of the entire cutting frame and the relative cutting device relative to the cutting frame. A potentiometer that detects the height and a control device that calculates the appropriate adjustment allowance from the detected values of both potentiometers, and obtains the appropriate height of the sub-cutting device using a hydraulic cylinder that is activated by the output from the control device. Was controlled to be.
This structure is useful in that the cutting height of the auxiliary cutting device can be automatically adjusted regardless of the cutting height change by the main cutting device. However, since a plurality of potentiometers, various control devices, and control actuators are required in this way, the structure for controlling the adjustment operation of the sub-cutting device is complicated, and the number of expensive parts is low. Costing was difficult.
Also, because the height control of the secondary cutting device is performed by controlling the relative position with the main cutting device, depending on the unevenness situation of the actual farm scene etc., it is difficult to cut the pedicles near the ground sufficiently There is also.
前記特許文献2に記載の構造のものでは、副切断装置側に接地するソリ状のセンサを設けて、そのソリ状のセンサの姿勢変化をポテンショメータで検出することにより、副切断装置側の対地高さを単独で制御できるようにした構造のものも示されているが、この場合にも、各種の検出手段や制御装置を要することは前記特許文献1に記載の構造のものと同様であり、やはり構造上の複雑化や部品点数の多さを低減することは困難であった。   In the structure described in Patent Document 2, a ground sensor on the side of the secondary cutting device is provided by providing a ground sensor on the side of the secondary cutting device, and detecting a change in posture of the sensor in the shape of the warp with a potentiometer. Although it is also shown that the structure can be controlled independently, also in this case, it is the same as the structure described in Patent Document 1 that various detection means and control devices are required, It was still difficult to reduce the structural complexity and the number of parts.
本発明の目的は、主切断装置と副切断装置とを用いて植立茎稈の上下を切断可能に構成したコンバインにおいて、副切断装置の刈高さ制御を主切断装置とは別個に行えるように、及び主切断装置の高さ位置変更に連動して姿勢変更することもできるようにするにあたり、各種センサー類などを削減して、構造の簡素化、及び低コスト化を図る点にある。   An object of the present invention is to enable cutting height control of the auxiliary cutting device to be performed separately from the main cutting device in a combine that is configured to cut the upper and lower sides of the planted stem using the main cutting device and the auxiliary cutting device. In addition, in order to be able to change the posture in conjunction with the change of the height position of the main cutting device, it is possible to reduce various sensors and simplify the structure and reduce the cost.
〔解決手段1〕
上記課題を解決するために講じた本発明の技術手段は、請求項1に記載のように、植立茎稈を刈り取る主切断装置と、その主切断装置よりも低い位置で前記植立茎稈に作用する副切断装置とを備えたコンバインにおいて、
前記主切断装置を走行機体に対して昇降操作自在に構成し、前記副切断装置を走行機体側に揺動自在に装備させた昇降フレームに支持させて昇降自在に構成し、
前記主切断装置の昇降操作に連動して副切断装置が昇降される連係状態と、前記主切断装置の昇降操作とは別に独立して副切断装置が昇降自在である連係解除状態とに、前記主切断装置に対する副切断装置の昇降作動の連係状態を切換操作自在な連係手段を備えたことを特徴とする。
[Solution 1]
The technical means of the present invention devised to solve the above-described problems includes a main cutting device that reaps the planted stalk and the planted stalk at a position lower than the main cutting device. In a combine with a secondary cutting device acting on
The main cutting device is configured to be movable up and down with respect to the traveling machine body, and the sub-cutting device is supported by a lifting frame that is swingably mounted on the traveling machine body side, and is configured to be movable up and down.
The linkage state in which the sub-cutting device is raised and lowered in conjunction with the lifting operation of the main cutting device, and the linkage release state in which the sub-cutting device can be raised and lowered independently of the lifting operation of the main cutting device, The present invention is characterized by comprising linkage means capable of switching the linkage state of the lifting operation of the sub-cutting device with respect to the main cutting device.
〔作用及び効果〕
上記のように、解決手段1にかかる本発明のコンバインでは、副切断装置を装備させる対象として、従来のように、走行機体に対して揺動自在に支持されている主切断装置を選択したのではなく、走行機体側に揺動自在に装備させた昇降フレームを用いて、副切断装置を走行機体に対して直接的に揺動自在に支持させている。
このため、副切断装置は、主切断装置の揺動作動には関係せずに、独自に対地高さを設定する状態が得られる。この状態では、主切断装置の刈高さの変更操作がなされても、これには関係なく副切断装置の切断高さは所定の状態に維持されるので、主切断装置に対して副切断装置を支持させた従来構造のような、主切断装置の刈高さ変更に伴う副切断装置側での高さ変化を修正するための検出手段や制御手段を必要としない。
それでいて、主切断装置に対する副切断装置の昇降作動の連係状態を切換操作自在な連係手段を備えたものであるから、副切断装置の昇降作動を主切断装置の昇降作動に連係させる必要が生じた場合には、前記連係手段を操作して、連係解除状態から連係状態に切換操作することができる。その結果、畦越え走行時などに必然的に持ち上げ操作される主切断装置の作動に連動させて副切断装置も追従作動させることができ、各種使用形態に則した副切断装置の昇降作動を、特別な制御手段を要することなく行わせることができる。
[Action and effect]
As described above, in the combine according to the present invention according to the solution 1, the main cutting device that is swingably supported with respect to the traveling machine body is selected as a target to be equipped with the sub-cutting device. Instead, the sub-cutting device is supported so as to be swingable directly with respect to the traveling machine body using an elevating frame that is swingably mounted on the traveling machine body side.
Therefore, the sub-cutting device can independently set the ground height regardless of the swing operation of the main cutting device. In this state, even if an operation for changing the cutting height of the main cutting device is performed, the cutting height of the sub cutting device is maintained in a predetermined state regardless of this, so that the sub cutting device is compared with the main cutting device. The detection means and the control means for correcting the height change on the side of the sub cutting device accompanying the change in cutting height of the main cutting device, such as the conventional structure supporting the main cutting device, are not required.
Nevertheless, since the linkage means that can freely switch the linkage state of the lifting / lowering operation of the auxiliary cutting device with respect to the main cutting device is provided, it is necessary to link the lifting / lowering operation of the auxiliary cutting device to the lifting / lowering operation of the main cutting device. In this case, the linkage means can be operated to switch from the linkage release state to the linkage state. As a result, the auxiliary cutting device can also follow the operation in conjunction with the operation of the main cutting device that is inevitably lifted when traveling over the heel, etc. This can be done without requiring special control means.
したがって、副切断装置の高さ位置制御に関して、主切断装置側の刈高さ調節の影響を受けない制御動作と、主切断装置側の高さ位置変更に連動した制御動作とを、任意に選択できるようにしたことにより、副切断装置の対機体姿勢や対地高さ位置などを検出するための各種のセンサ類や、修正のための制御手段を必要とせず、構造の簡素化や部品点数の削減を図り得る利点がある。   Therefore, regarding the height position control of the auxiliary cutting device, a control operation that is not affected by the cutting height adjustment on the main cutting device side and a control operation that is linked to the height position change on the main cutting device side are arbitrarily selected. As a result, it is possible to simplify the structure and reduce the number of parts without requiring various sensors for detecting the attitude of the sub-cutting device relative to the machine body or the height of the ground, and control means for correction. There is an advantage that can be reduced.
〔解決手段2〕
本発明のコンバインにおける第2の解決手段は、請求項2の記載のように、副切断装置は橇体を装備して接地追従するように構成されているとともに、前記橇体が地面に接する範囲で、その橇体と接地面との間における面圧を軽減するように、副切断装置を上昇側へ揺動付勢する付勢手段を備えた点に特徴がある。
[Solution 2]
According to a second solving means of the combine of the present invention, as described in claim 2, the auxiliary cutting device is provided with a housing and is configured to follow the ground, and the range in which the housing contacts the ground. Thus, there is a feature in that an urging means for oscillating and urging the sub-cutting device to the upward side is provided so as to reduce the surface pressure between the housing and the grounding surface.
〔作用及び効果〕
上記のように、解決手段2にかかる本発明のコンバインでは、前記解決手段1にかかる発明と同等な作用効果の他に、次の作用効果をも奏する。
すなわち、副切断装置は橇体を装備して接地追従するものであるから、副切断装置の対地高さは橇体が地面に沿って滑走することで自動的に地面の変化に追従した高さに制御され、特別な高さ検出手段や高さ制御手段を必要としない。
そして、前記橇体は、その橇体と接地面との間における面圧を軽減するように、副切断装置を上昇側へ揺動付勢する付勢手段を備えているので、圃場面が比較的軟弱な状態であっても接地面基準での刈高さを維持し易く、圃場の硬軟による影響を受け難い状態で所要の刈高さを確保し易いという利点がある。
[Action and effect]
As described above, the combine according to the present invention according to the solving means 2 has the following effects in addition to the same effects as the invention according to the solving means 1.
In other words, since the secondary cutting device is equipped with a housing to follow the ground, the ground height of the secondary cutting device is the height that automatically follows the changes in the ground as the housing slides along the ground. Therefore, no special height detection means or height control means is required.
And since the said housing | casing is equipped with the urging means which oscillates and biases a sub-cutting device to the raising side so that the surface pressure between the housing and a grounding surface may be reduced, a farm scene is compared. There is an advantage in that it is easy to maintain the cutting height with respect to the ground contact plane even in a soft and soft state, and it is easy to ensure the required cutting height in a state that is not easily affected by the hardness and softness of the field.
〔解決手段3〕
本発明のコンバインにおける第3の解決手段は、請求項3の記載のように、主切断装置に対する副切断装置の昇降作動の連係状態を切換操作する連係手段の操作部は、運転座席に搭座する操縦者の手が届く範囲の運転座席近くに設けてある点に特徴がある。
[Solution 3]
According to a third solving means of the combine of the present invention, as described in claim 3, the operation portion of the linkage means for switching the linkage state of the lifting / lowering operation of the auxiliary cutting device with respect to the main cutting device is mounted on the driver's seat. It is characterized by being provided near the driver's seat within the reach of the pilot.
〔作用及び効果〕
上記のように、解決手段3にかかる本発明のコンバインでは、前記解決手段1及び2にかかる発明と同等な作用効果の他に、次の作用効果をも奏する。
すなわち、主切断装置に対する副切断装置の昇降作動の連係状態を切換操作する連係手段の操作部を、運転座席に搭座する操縦者の手が届く範囲に設けて、作業走行中での操作を行い易くしてあるので、作業開始時や作業終了時、あるいは別の圃場へ機体を移すときなど、主切断装置と副切断装置との連係作動が要望される時点での連係状態への切換を迅速に行うことができる利点がある。
[Action and effect]
As described above, the combine of the present invention according to the solving means 3 has the following effects in addition to the same effects as the invention according to the solving means 1 and 2.
That is, the operation part of the linkage means for switching the linkage state of the lifting / lowering operation of the sub cutting device with respect to the main cutting device is provided within the reach of the operator's hand sitting on the driver's seat so Since it is easy to perform, switching to the linked state at the time when linked operation between the main cutting device and the sub cutting device is required, such as at the start of work, at the end of work, or when moving the machine to another field There is an advantage that can be done quickly.
〔解決手段4〕
本発明のコンバインにおける第4の解決手段は、請求項4の記載のように、主切断装置に対する副切断装置の昇降作動の連係状態を切換操作する連係手段は、下端側に前記副切断装置に対する接続部を備え、その接続部よりも上端側寄りの中間箇所に主切断装置と副切断装置とを接続及び接続解除可能な連結部を備え、その連結部よりも上端側に前記連結部を人為的に操作可能な操作部を備えて構成されている点に特徴がある。
[Solution 4]
According to a fourth solving means of the combine of the present invention, as described in claim 4, the linkage means for switching the linkage state of the lifting / lowering operation of the auxiliary cutting device with respect to the main cutting device is provided on the lower end side with respect to the auxiliary cutting device. A connecting portion, and a connecting portion capable of connecting and disconnecting the main cutting device and the sub-cutting device at an intermediate position closer to the upper end side than the connecting portion; It is characterized in that it is configured to include an operation unit that can be operated manually.
〔作用及び効果〕
上記のように、解決手段4にかかる本発明のコンバインでは、前記解決手段1〜3にかかる発明と同等な作用効果の他に、次の作用効果をも奏する。
すなわち、連係手段が副切断装置に支持されているので、連係手段の連結部が接続状態に操作された状態であるのか、接続解除状態に操作されている状態であるのかを、操作部を目視することで簡単に識別することができる。つまり、接続解除状態で作業走行しているときには、操作部が圃場面の凹凸変化などによって頻繁に上下動し、連結部の接続状態ではその操作部の相対的な上下動がないので、走行作業中に連係状態の有無を確認することができる。また、畦越え時などに、前記連係状態で主切断装置を上昇作動させると、操作部の相対位置変化はないが、連係が解除された状態であれば、主切断装置の上昇時に操作部が追従しないので、その連係が解除状態であることを早期のうちに認識することができる。
このようにして、特別な表示手段を要することなく連係状態の有無を識別できるので、簡単な構造を用いたものでありながら、操作忘れや誤操作の少ない状態で使用することができる利点がある。
[Action and effect]
As described above, the combine according to the present invention according to the solving means 4 has the following effects in addition to the same effects as the invention according to the above-described solving means 1 to 3.
That is, since the linking means is supported by the sub-cutting device, whether the connecting portion of the linking means is in the connected state or in the disconnected state is checked visually. It can be easily identified. In other words, when working in a disconnected state, the operating unit frequently moves up and down due to changes in the unevenness of the field scene, and in the connected state, the operating unit does not move up and down relatively. The presence or absence of linkage status can be confirmed. In addition, when the main cutting device is lifted and operated in the linkage state, such as when over the heel, there is no change in the relative position of the operation unit, but if the linkage is released, the operation unit is not moved when the main cutting device is lifted. Since it does not follow, it can be recognized early that the linkage is in a released state.
In this way, since the presence or absence of the linked state can be identified without requiring a special display means, there is an advantage that it can be used in a state where there is little forgetting operation or erroneous operation while using a simple structure.
以下、本発明の実施の形態を図面の記載に基づいて説明する。
〔全体構成〕
図1にはコンバインの全体側面が示されている。このコンバインは、左右一対のクローラ式走行装置2を備えた走行機体1の前部に、刈取対象茎稈を刈り取って後方へ搬送する刈取搬送系処理部Aを設けてある。走行機体1上には、前記刈取搬送系処理部Aから供給される刈取茎稈の全体を投入して脱穀、及び選別処理を施す脱穀装置12や、この脱穀装置12からの穀粒を貯留して袋詰めする穀粒袋詰め装置13などを搭載してあり、走行機体1における穀粒袋詰め装置13の前方箇所に運転座席15を備えた搭乗運転部14を設けて、供給処理対象物の全体を脱穀処理する普通型コンバインを構成してある。
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
〔overall structure〕
FIG. 1 shows the entire side of the combine. This combine is provided with a cutting conveyance system processing unit A that cuts a cutting target stem and conveys it to the rear of the traveling machine body 1 having a pair of left and right crawler type traveling devices 2. On the traveling machine body 1, a threshing device 12 that performs threshing and selection processing by feeding the whole cutting stalk pod supplied from the cutting and conveying system processing unit A, and grains from the threshing device 12 are stored. A boarding unit 14 equipped with a driver seat 15 is provided at a location in front of the grain bagging apparatus 13 in the traveling machine 1. An ordinary combine that threshs the whole is constructed.
〔刈取搬送系処理部〕
図1及び図2に示すように、刈取搬送系処理部Aは、走行機体1に対して、左右向きの第1軸心X1周りで上下揺動可能に連結してある刈取搬送フレーム30を備えた上部処理装置3と、走行機体1の前部に対して左右向きの第1軸心X2周りで上下揺動可能に装着した昇降フレーム40を備えた下部処理装置4とで構成されている。
[Cutting and conveying system processing section]
As shown in FIGS. 1 and 2, the cutting and conveying system processing unit A includes a cutting and conveying frame 30 that is connected to the traveling machine body 1 so as to be swingable up and down around a first axial center X1 facing left and right. The upper processing device 3 and the lower processing device 4 provided with a lifting frame 40 mounted so as to be swingable up and down around a first axial center X2 facing left and right with respect to the front portion of the traveling machine body 1.
前記刈取搬送フレーム30に備えられた上部処理装置3は、走行に伴って刈取対象茎稈と非刈取対象茎稈とを梳き分けるデバイダ31が前部左右両端に装備され、両デバイダ31,31の間に導かれた刈取対象の植立茎稈を切断するバリカン型の主切断装置32と、刈取対象茎稈を後方に向けて掻き込む回転リール33と、切断後の刈取対象茎稈を左右方向の所定箇所に寄せ集めて後方に送るオーガ34と、さらに後方の脱穀装置12の入り口に向けて後方送りするフィーダ35とを備えて構成されている。
そして、この上部処理装置3は、前記フィーダ35の下方近くと走行機体1側の固定部とにわたって架設した油圧式のシリンダ11の作動で左右向き第1軸心X1周りに上下揺動し、その上下揺動で、刈取対象茎稈に対する主切断装置32の高さ位置を変更する刈り高さ調節を行えるようになっている。
The upper processing device 3 provided in the cutting and conveying frame 30 is equipped with a divider 31 that separates a cutting target stem and a non-cutting target stem along with traveling at both front and left and right ends. A clipper-type main cutting device 32 that cuts the planted stems to be cut guided between them, a rotary reel 33 that scrapes the target stems to the rear, and the cut target stems to be cut left and right The auger 34 gathered at a predetermined location and sent backward, and a feeder 35 fed backward toward the entrance of the rear threshing device 12 are further provided.
The upper processing device 3 swings up and down around the first axial center X1 in the left-right direction by the operation of the hydraulic cylinder 11 installed near the lower portion of the feeder 35 and the fixed portion on the traveling machine body 1 side. The cutting height can be adjusted by changing the height position of the main cutting device 32 with respect to the cutting stem to be cut by vertical swinging.
前記下部処理装置4は、次のように構成してある。
バリカン型の副切断装置41について説明する。図2乃至図4に示すように、走行機体1の前端側における左右両側と左右方向での中央箇所近く位置に、左右向きの第2軸心X2周りで上下揺動自在な昇降フレーム40を前方側に向けて延出してある。そして、これらの各昇降フレーム40は、その前端側が、上下に分岐した二股状に形成されており、上方側の分岐先端部を横長の連結フレーム42で連結し、下方側の分岐先端部をバリカン型の副切断装置41の受刃支持台43に連結してあって、各昇降フレーム40、及び副切断装置41が一体に連結された状態で前記第2軸心X2周りで揺動可能に構成してある。
The lower processing apparatus 4 is configured as follows.
The clipper-type auxiliary cutting device 41 will be described. As shown in FIG. 2 to FIG. 4, a lifting frame 40 that can swing up and down around a second axis X <b> 2 facing left and right is located in front of the left and right sides of the front end side of the traveling machine body 1 and a position near the center in the left and right direction. It extends toward the side. Each of the elevating frames 40 is formed in a bifurcated shape with the front end branched vertically, the upper branch tip is connected by a horizontally long connecting frame 42, and the lower branch tip is clippers. It is connected to the receiving blade support base 43 of the sub cutting device 41 of the mold, and is configured to be swingable around the second axis X2 in a state where each lifting frame 40 and the sub cutting device 41 are integrally connected. It is.
図2乃至図5に示すように、上方側の分岐先端部を連結する横長の連結フレーム42の左側端部には、その連結フレーム42と下方の副切断装置41の受刃支持台43とを連結するブラケット44を設けてあり、このブラケット44に、前記副切断装置41を駆動する駆動装置20を収納した伝動ケース21が取付固定してある。   As shown in FIGS. 2 to 5, the connection frame 42 and the receiving blade support base 43 of the lower sub-cutting device 41 are provided at the left end of the horizontally long connection frame 42 that connects the upper branching tip. A bracket 44 to be connected is provided, and a transmission case 21 housing the driving device 20 for driving the auxiliary cutting device 41 is attached and fixed to the bracket 44.
前記受刃支持台43に固定された受刃体41Aの上部には、左右にスライド移動する可動刃41Bが載置されており、前記駆動装置20から、駆動アーム、ナイフヘッド等の周知の刈刃駆動機構を介して、可動刃41Bがスライド駆動されるように構成してある。
前記駆動装置20を内装する伝動ケース21に対しては、伝動ケース21の内側に設けた伝動プーリ22と、機体フレーム10上の中継ケース23に設けた中継プーリ24とにわたって伝動ベルト25を巻回し、中継ケース23の中継スプロケット26と、前記上部処理装置3への伝動系から分岐伝動される出力用スプロケット27とにわたって伝動チェーン28を巻回することによってエンジン動力が伝達されるように構成してある。
On the upper part of the receiving blade body 41A fixed to the receiving blade support base 43, a movable blade 41B that slides left and right is placed. From the drive device 20, a known cutting tool such as a drive arm or a knife head is mounted. The movable blade 41B is configured to be slid and driven through a blade driving mechanism.
A transmission belt 25 is wound around a transmission pulley 21 provided on the inner side of the transmission case 21 and a relay pulley 24 provided on a relay case 23 on the body frame 10 with respect to the transmission case 21 in which the drive device 20 is housed. The engine power is transmitted by winding the transmission chain 28 over the relay sprocket 26 of the relay case 23 and the output sprocket 27 branched and transmitted from the transmission system to the upper processing device 3. is there.
前記下部処理装置4は、図3,4に示すように、前記受刃支持台43の右端側(既刈側)下方に接地用の橇体45を備えている。そして、図7乃至図9に示すように、中央箇所の昇降フレーム40と走行機体1との間に、前記橇体45の接地圧を減少させるように、昇降フレーム40を上昇側へ揺動付勢する付勢手段6を備え、その橇体45と接地面との間における面圧を軽減するように構成してある。   As shown in FIGS. 3 and 4, the lower processing device 4 includes a grounding housing 45 below the right end side (the already cut side) of the receiving blade support base 43. Then, as shown in FIGS. 7 to 9, the elevating frame 40 is swung to the ascending side between the elevating frame 40 at the center and the traveling machine body 1 so as to reduce the ground pressure of the housing 45. The urging means 6 for urging is provided, and the surface pressure between the housing 45 and the ground contact surface is reduced.
前記付勢手段6は、昇降フレーム40側に揺動自在に枢支連結された上部支持体60と、走行機体1側に揺動自在に支持された下部支持体61と、下部支持体61側に装備されたコイルスプリング62とで構成されている。
上部支持体60は、所定長さの軸体部分63の周部に所定間隔を隔てて短い筒状部64が一体的に構成されたものであり、下部支持体61は、前記上部支持体60の軸体部分63に外嵌し、かつ前記筒状部64に内嵌する筒軸部65と、その筒軸部65に外嵌して相対摺動自在に装着された鍔状部材66とで構成してある。
そして、コイルスプリング62は下部支持体61の外周部分に外嵌させてあり、図6(a)及び図9(a)に示すように昇降フレーム40が下降した副切断装置41が地面に近づいた作業姿勢になると、前記コイルスプリング62が圧縮され、逆に、図6(b)及び図9図(b)に示すように昇降フレーム40が所定高さ以上に上昇して、副切断装置41が地面から大きく離れると、前記コイルスプリング62の付勢力は作用しなくなる。図9(b)に示す状態が、コイルスプリング62の自由伸張状態である。
The urging means 6 includes an upper support 60 pivotally connected to the lifting frame 40 side, a lower support 61 swingably supported on the traveling machine 1 side, and a lower support 61 side. And a coil spring 62 mounted on the.
The upper support 60 is configured such that a short cylindrical portion 64 is integrally formed at a predetermined interval around a peripheral portion of a shaft body portion 63 having a predetermined length, and the lower support 61 is configured by the upper support 60. A cylindrical shaft portion 65 that is externally fitted to the shaft body portion 63 and is internally fitted to the cylindrical portion 64, and a flange-like member 66 that is externally fitted to the cylindrical shaft portion 65 and is mounted so as to be relatively slidable. It is configured.
The coil spring 62 is externally fitted to the outer peripheral portion of the lower support 61, and as shown in FIGS. 6 (a) and 9 (a), the sub-cutting device 41 with the lifting frame 40 lowered approaches the ground. When the working posture is reached, the coil spring 62 is compressed, and conversely, as shown in FIGS. 6 (b) and 9 (b), the elevating frame 40 is raised to a predetermined height or more, and the auxiliary cutting device 41 is moved. When it is far away from the ground, the biasing force of the coil spring 62 does not act. The state shown in FIG. 9B is a free extension state of the coil spring 62.
前記付勢手段6のコイルスプリング62による上昇側への付勢力は、前記接地用の橇体45が地面に接した作業状態では確実に橇体45に作用する接地圧を軽減することができるように、下部処理装置4の重量とコイルスプリング62の上昇側への付勢力とがほぼバランスして、僅かに橇体45の接地面に接地圧が作用する程度に設定されている。
したがって、圃場面の凹凸変化などによって橇体45に作用する面圧が少し変化すると下部処理装置4を追従させて昇降作動させられるように、所謂フローティング作業状態での刈取作業が可能となるように構成してある。
The urging force of the urging means 6 to the upward side by the coil spring 62 can surely reduce the ground pressure acting on the housing 45 when the grounding housing 45 is in contact with the ground. In addition, the weight of the lower processing device 4 and the biasing force of the coil spring 62 toward the ascending side are substantially balanced so that the ground pressure acts slightly on the ground surface of the housing 45.
Therefore, when the surface pressure acting on the housing 45 is slightly changed due to the unevenness of the farm scene or the like, the lower processing device 4 can be moved up and down so that the cutting operation can be performed in a so-called floating operation state. It is configured.
図4及び図6,7に示すように、前記下部処理装置4は上部処理装置3に対して左右一対のガスダンパ46によって連結してあり、あまり急激な昇降動作が行われ難いように構成してある。尚、このガスダンパ46は、下部処理装置4が最大限下降状態となったときの下降限界位置を設定し得るように、その最大伸長量が設定されている。   As shown in FIGS. 4, 6, and 7, the lower processing apparatus 4 is connected to the upper processing apparatus 3 by a pair of left and right gas dampers 46, and is configured so that it is difficult to perform a very rapid lifting operation. is there. The maximum extension amount of the gas damper 46 is set so that the lower limit position can be set when the lower processing apparatus 4 is in the fully lowered state.
〔連係手段〕
上記下部処理装置4に備えられた副切断装置41を、上部処理装置3に備えられた主切断装置32に対して、その昇降作動が連係する状態と、連係解除された状態とを切換操作するための連係手段5は次のように構成されている。
[Linkage means]
The sub-cutting device 41 provided in the lower processing device 4 is switched between a state in which the lifting / lowering operation is linked and a state in which the linkage is released with respect to the main cutting device 32 provided in the upper processing device 3. The linking means 5 is configured as follows.
図6乃至図8に示すように、連係手段5は、上下方向に長い板状の連結部材50と、その連結部材50の中間部を上部処理装置3に対して接続、及び接続を解除する状態に切換操作するための係合操作体51とで構成されている。
前記連結部材50は、その下端側に、前記昇降フレーム40の他方の分岐端側に対する接続部52としての接続用孔を備え、その接続部52よりも上端側寄りの中間箇所に、連結部材50の長手方向に沿って形成された長尺のスライド用孔53と、そのスライド用孔53の長手方向の範囲内で、かつスライド用孔53の下端近くに、連結部材50の横側部に位置する連結部54としての係合用孔部54とを備えている。また、前記接続部52が設けられた下端側とは反対の上端部は、運転座席15近くに位置して、操縦者が握り操作することが可能な操作部55に形成されている。
この連結部材50は、ある程度の靱性を有した鋼材で構成してあり、その上端側の操作部55を握って機体の左右方向、すなわち、連結部材50の板面に直交する方向で少し揺動操作すると、自身の靱性で撓み変形し、前記連結部54としての係合用孔部と係合操作体51との相対位置を変更操作して、係脱操作を行うことができる。
As shown in FIGS. 6 to 8, the linking means 5 is a state in which a plate-like connecting member 50 that is long in the vertical direction and an intermediate portion of the connecting member 50 are connected to and disconnected from the upper processing device 3. And an engaging operation body 51 for switching the operation.
The connecting member 50 includes a connecting hole as a connecting portion 52 for the other branch end side of the elevating frame 40 on the lower end side, and the connecting member 50 is located at an intermediate position closer to the upper end side than the connecting portion 52. A long sliding hole 53 formed along the longitudinal direction of the connecting member 50 and within the longitudinal direction of the sliding hole 53 and near the lower end of the sliding hole 53 is positioned on the lateral side portion of the connecting member 50. And an engaging hole 54 as a connecting portion 54 to be connected. Further, the upper end portion opposite to the lower end side where the connection portion 52 is provided is formed in an operation portion 55 which is located near the driver seat 15 and can be gripped by the operator.
The connecting member 50 is made of a steel material having a certain degree of toughness, and is slightly swung in the left-right direction of the fuselage, that is, in the direction orthogonal to the plate surface of the connecting member 50 by grasping the operation portion 55 on the upper end side. When operated, it is bent and deformed by its own toughness, and the engaging / disengaging operation can be performed by changing the relative position between the engaging hole as the connecting portion 54 and the engaging operating body 51.
前記係合操作体51は、図10及び図11に示すように、刈取搬送フレーム30に対して、抜き差し方向で移動自在に装着された一方の脚部56aを、前記連結部材50のスライド用孔53に嵌入させ、他側の短い脚部56bを前記係合用孔部54に対して係脱自在であるように、鉤状に屈曲形成された係合片56と、その係合片56の前記短い側の脚部56bを前記係合用孔部54から抜け出し側へ付勢するバネ57とで構成されている。   As shown in FIGS. 10 and 11, the engagement operation body 51 has one leg portion 56 a that is movably mounted in the insertion / removal direction with respect to the cutting and conveying frame 30, and a slide hole of the connecting member 50. 53, and the other short leg portion 56b can be freely engaged with and disengaged from the engagement hole portion 54. A spring 57 for urging the short leg portion 56b out of the engagement hole portion 54 and moving it to the side.
したがって、連結部材50と係合操作体51との非係合状態では、前記図10(a)及び図11(a)のように、係合操作体51の短い脚部56bは連結部54としての係合用孔部から外れているが、連結部材50の操作部55を握って連結部材50を少し右方へ操作すると、図10(b)及び図11(b)に示すように、係合操作体51の短い脚部56bに係合用孔部が嵌り込む。この状態で上部処理装置3を上昇させると、下部処理装置4が吊り上げられる状態となるので、その状態では下部処理装置4の重量が係合用孔部54と係合操作体51との接触面に作用して、前記操作部55から手を離しても、前記係合用孔部と係合操作体51との係合状態が維持される。もちろん、上部処理装置3を下降させて下部処理装置4が接地すると、その下部処理装置4の重量が前記接触面に作用しなくなるので、前記連結部材50は自身の靱性でもとの状態に復帰し、前記係合状態は解除される。   Therefore, in the non-engaged state of the connecting member 50 and the engaging operation body 51, the short leg portion 56b of the engaging operation body 51 is used as the connecting portion 54 as shown in FIGS. 10 (a) and 11 (a). However, when the connecting member 50 is operated slightly to the right by grasping the operating portion 55 of the connecting member 50, as shown in FIGS. 10 (b) and 11 (b), the engaging portion is engaged. The engaging hole fits into the short leg 56 b of the operating body 51. When the upper processing device 3 is raised in this state, the lower processing device 4 is lifted. In this state, the weight of the lower processing device 4 is applied to the contact surface between the engagement hole 54 and the engagement operating body 51. Even if the operation is performed and the hand is released from the operation portion 55, the engagement state between the engagement hole and the engagement operation body 51 is maintained. Of course, when the lower processing device 4 is grounded by lowering the upper processing device 3, the weight of the lower processing device 4 does not act on the contact surface, so that the connecting member 50 returns to its original toughness. The engagement state is released.
このように構成されたコンバインでは、図6(b)及び図8に示すように、畦越え走行時などに、前記連係手段5を操作して下部処理装置4を上部処理装置3の昇降作動に連動する状態に切換え、上部処理装置3を上昇操作することによって、下部処理装置4も追従して持ち上げられた姿勢とする。
尚、図10及び図11中に示す符号58は、前記スライド用孔53に挿入された一方の脚部56aがそのスライド用孔53から抜け出すことを防止するためのワッシャであり、符号59は抜け止めピンである。
In the combine configured as described above, as shown in FIGS. 6B and 8, the lower processing device 4 is moved up and down by operating the linking means 5 when traveling over the heel. By switching to an interlocking state and raising the upper processing device 3, the lower processing device 4 is also lifted up following it.
10 and 11 is a washer for preventing one leg portion 56a inserted into the slide hole 53 from slipping out of the slide hole 53. It is a stop pin.
〔別実施形態の1〕
連係手段5としては、最良の実施形態で示したような、連結部材50の靱性を利用して係合解除側へ付勢したものに限らず、例えば、別途バネ材を用いて連結部材50を係合解除側へ付勢するように構成したものであってもよい。
[Other Embodiment 1]
The linking means 5 is not limited to the one that is urged toward the disengagement side by utilizing the toughness of the connecting member 50 as shown in the best embodiment. For example, the connecting member 50 is separately formed using a spring material. It may be configured to be biased toward the engagement release side.
〔別実施形態の2〕
連係手段5としては、最良の実施形態で示したような、連結部材50の靱性を利用して係合解除側へ付勢したものに限らず、例えば、全く付勢手段を用いないで、係合位置と係合解除位置に位置変更したり、あるいは、別途、係止ピンとピン孔などの係合手段を用いて係脱するようにしてもよい。
[Second embodiment]
The linking means 5 is not limited to that which is urged toward the disengagement side by utilizing the toughness of the connecting member 50 as shown in the best embodiment. For example, the linking means 5 is not used at all. The position may be changed between the combined position and the disengaged position, or may be separately engaged / disengaged using engaging means such as a locking pin and a pin hole.
〔別実施形態の3〕
連係手段5としては、最良の実施形態で示したような、接続部52、連結部54、及び操作部55を、一連の連結部材50を利用して構成したものに限らず、例えば、上部処理装置3と下部処理装置4とをチェーンなどで連結し、搭乗運転部14に設けた指令スイッチの操作で電動モータによりチェーンを巻き上げて、上部処理装置3に下部処理装置4を吊り持ちさせた状態と、チェーンを十分に緩めて下部処理装置4の自由な昇降動作を許容する状態にするなど、適宜の手段を採用することができる。
[3 of another embodiment]
The linking means 5 is not limited to the connection part 52, the connection part 54, and the operation part 55 configured by using a series of connection members 50 as shown in the best embodiment. The apparatus 3 and the lower processing apparatus 4 are connected by a chain or the like, the chain is wound up by an electric motor by operating a command switch provided in the boarding operation unit 14, and the lower processing apparatus 4 is suspended by the upper processing apparatus 3 Then, an appropriate means can be adopted such as sufficiently loosening the chain and allowing the lower processing device 4 to freely move up and down.
コンバインの全体側面図Combine side view コンバインの全体を示す平面図Plan view showing the entire combine 下部処理装置部分を示す正面図Front view showing the lower processing unit 下部処理装置部分を示す平面図Plan view showing the lower processing unit 下部処理装置の支持構造を示す側面図Side view showing support structure of lower processing unit コンバインの使用状態を示す側面図Side view showing combine usage 下部処理装置の支持構造と連係手段を示す側面図Side view showing support structure and linking means of lower processing apparatus 下部処理装置の支持構造と連係手段を示す側面図Side view showing support structure and linking means of lower processing apparatus 付勢手段を示す切り欠き側面図Notched side view showing biasing means 連係手段の作用状態を示す正面図Front view showing the operating state of the linking means 連係手段の作用状態を示す斜視図The perspective view which shows the action state of a linkage means
符号の説明Explanation of symbols
3 上部処理装置
4 下部処理装置
5 連係手段
6 付勢手段
30 刈取搬送フレーム
32 主切断装置
40 昇降フレーム
41 副切断装置
45 橇体
50 連結部材
51 係合操作体
52 接続部
53 スライド用孔
54 係合用孔部
55 操作部
DESCRIPTION OF SYMBOLS 3 Upper processing apparatus 4 Lower processing apparatus 5 Linking means 6 Energizing means 30 Mowing conveyance frame 32 Main cutting apparatus 40 Lifting frame 41 Sub cutting apparatus 45 Housing 50 Connection member 51 Engagement operation body 52 Connection part 53 Slide hole 54 Engagement Joint hole 55 Operation part

Claims (4)

  1. 植立茎稈を刈り取る主切断装置と、その主切断装置よりも低い位置で前記植立茎稈に作用する副切断装置とを備えたコンバインであって、
    前記主切断装置を走行機体に対して昇降操作自在に構成し、前記副切断装置を走行機体側に揺動自在に装備させた昇降フレームに支持させて昇降自在に構成し、
    前記主切断装置の昇降操作に連動して副切断装置が昇降される連係状態と、前記主切断装置の昇降操作とは別に独立して副切断装置が昇降自在である連係解除状態とに、前記主切断装置に対する副切断装置の昇降作動の連係状態を切換操作自在な連係手段を備えたことを特徴とするコンバイン。
    A combine provided with a main cutting device that cuts the planted stalk and a secondary cutting device that acts on the planted stalk at a position lower than the main cutting device,
    The main cutting device is configured to be movable up and down with respect to the traveling machine body, and the sub-cutting device is supported by a lifting frame that is swingably mounted on the traveling machine body side, and is configured to be movable up and down.
    The linkage state in which the sub-cutting device is raised and lowered in conjunction with the lifting operation of the main cutting device, and the linkage release state in which the sub-cutting device can be raised and lowered independently of the lifting operation of the main cutting device, A combine characterized by comprising linkage means capable of switching the linkage state of the lifting operation of the sub-cutting device with respect to the main cutting device.
  2. 副切断装置は橇体を装備して接地追従するように構成されているとともに、前記橇体が地面に接する範囲で、その橇体と接地面との間における面圧を軽減するように、副切断装置を上昇側へ揺動付勢する付勢手段を備えたものである請求項1記載のコンバイン。   The secondary cutting device is equipped with a housing and configured to follow the ground, and in the range where the housing is in contact with the ground, the secondary cutting device is configured to reduce the surface pressure between the housing and the grounding surface. The combine according to claim 1, further comprising biasing means for swinging and biasing the cutting device upward.
  3. 主切断装置に対する副切断装置の昇降作動の連係状態を切換操作する連係手段の操作部は、運転座席に搭座する操縦者の手が届く範囲の運転座席近くに設けてある請求項1または2記載のコンバイン。   3. The operation part of the linkage means for switching the linkage state of the lifting / lowering operation of the sub cutting device with respect to the main cutting device is provided near the driver's seat in a range that can be reached by a driver who sits on the driver's seat. Combine as described.
  4. 主切断装置に対する副切断装置の昇降作動の連係状態を切換操作する連係手段は、下端側に前記副切断装置に対する接続部を備え、その接続部よりも上端側寄りの中間箇所に主切断装置と副切断装置とを接続及び接続解除可能な連結部を備え、その連結部よりも上端側に前記連結部を人為的に操作可能な操作部を備えて構成されている請求項1、2、または3記載のコンバイン。   The linking means for switching the linkage state of the lifting / lowering operation of the sub cutting device with respect to the main cutting device includes a connecting portion for the sub cutting device on the lower end side, and the main cutting device and an intermediate portion closer to the upper end side than the connecting portion. A connection part that can connect and disconnect from the sub-cutting device is provided, and an operation part capable of artificially operating the connection part is provided on the upper end side of the connection part. 3. Combine according to 3.
JP2008218567A 2008-08-27 2008-08-27 Combined harvester Pending JP2010051217A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013111639A1 (en) * 2012-01-26 2013-08-01 ヤンマー株式会社 Combine
JP2013153655A (en) * 2012-01-26 2013-08-15 Yanmar Co Ltd Combine harvester
WO2014136862A1 (en) * 2013-03-07 2014-09-12 ヤンマー株式会社 Combine harvester
JP2014171420A (en) * 2013-03-07 2014-09-22 Yanmar Co Ltd Combine-harvester
JP2015181448A (en) * 2014-03-26 2015-10-22 井関農機株式会社 Combine
JP2015223133A (en) * 2014-05-28 2015-12-14 ヤンマー株式会社 Combine-harvester
JP2015223131A (en) * 2014-05-28 2015-12-14 ヤンマー株式会社 Combine harvester

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013111639A1 (en) * 2012-01-26 2013-08-01 ヤンマー株式会社 Combine
JP2013153655A (en) * 2012-01-26 2013-08-15 Yanmar Co Ltd Combine harvester
WO2014136862A1 (en) * 2013-03-07 2014-09-12 ヤンマー株式会社 Combine harvester
JP2014171419A (en) * 2013-03-07 2014-09-22 Yanmar Co Ltd Combine-harvester
JP2014171420A (en) * 2013-03-07 2014-09-22 Yanmar Co Ltd Combine-harvester
CN105025699A (en) * 2013-03-07 2015-11-04 洋马株式会社 Combine harvester
CN105025699B (en) * 2013-03-07 2017-07-18 洋马株式会社 United reaper
JP2015181448A (en) * 2014-03-26 2015-10-22 井関農機株式会社 Combine
JP2015223133A (en) * 2014-05-28 2015-12-14 ヤンマー株式会社 Combine-harvester
JP2015223131A (en) * 2014-05-28 2015-12-14 ヤンマー株式会社 Combine harvester

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