JP3648853B2

JP3648853B2 - Combine depth control device

Info

Publication number: JP3648853B2
Application number: JP17415996A
Authority: JP
Inventors: 文夫吉邨; 秀孝平山
Original assignee: Iseki and Co Ltd
Current assignee: Iseki and Co Ltd
Priority date: 1996-06-13
Filing date: 1996-06-13
Publication date: 2005-05-18
Anticipated expiration: 2016-06-13
Also published as: JPH1012A

Description

【０００１】
【産業上の利用分野】
本発明は、コンバインの扱深さ調節装置に係るものである。
【０００２】
【従来技術】
従来、実開昭６１−１７５９３５号公報には、刈取穀稈を搬送する刈取部の搬送装置と脱穀装置に穀稈を搬送供給する穀稈供給搬送装置との間に、前記搬送装置との引継位置を変更して扱深さを調節しうる扱深さ調節装置を設け、該扱深さ調節装置は扱深さセンサの信号に基づいて扱深さを自動的に一定にするように構成したものにおいて、走行速度の変化に応じて前記扱深さ調節装置に出力するパルス幅を変更して扱深さを一定にするようにした構成について記載されている。
【０００３】
【発明が解決しようとする課題】
前記公知例は、出力するパルス幅を変更する構成であるが、パルス出力（信号）はオンとオフの反復であるため、「出力オフ（信号）」の状態ではアクチュエーターは停止または作動が遅くなる。それゆえ、低速走行における作業では問題がないが、高速走行における作業では扱深さ調節に遅れが発生するという課題がある。即ち、アクチュエーターの作動は、連続出力に対してパルス出力では遅いからである。
しかし、扱深さ調節装置を調節のために単に早く移動させると、移動のショック、振動などが発生することにより引継が円滑に行えないということもある。
本発明は、迅速な対応を行えるようにすると共に、引継を円滑・確実に行えるようにしたものである。
【０００４】
【発明の目的】
扱深さ制御の迅速な対応、引継の円滑・確実化。
【０００５】
【課題を解決しようとする手段】
本発明は、刈取穀稈を搬送する刈取部５の搬送装置１５と脱穀装置３に穀稈を搬送供給する穀稈供給搬送装置１８との間に、前記搬送装置１５との引継位置を変更して扱深さを調節しうる扱深さ調節装置１９を設け、該扱深さ調節装置１９は扱深さセンサ３２の信号に基づいて扱深さを自動的に略一定にするように構成したものにおいて、所定速度を基準に低速走行のとき前記扱深さ調節装置１９にパルス出力し、高速走行のときは最初に所定時間パルス出力しその後は連続出力して扱深さを略一定にするように構成したコンバインの扱深さ調節装置としたものである。
【０００６】
【実施例】
本発明の実施例を図により説明すると、１は機体フレーム、２は走行装置、３は走行装置２の上方位置に設けた脱穀装置、５は前記脱穀装置３の前方位置に設けた刈取部である。刈取部５は、前後方向の縦支持筒６の基部を前記機体フレーム１に設けた支持台７の上部に回動自在に取付け、縦支持筒６の先端に刈取部フレーム８を取付ける。刈取部フレーム８と機体フレーム１の間には刈取上下シリンダ９を設けて刈取部５を上下させる。刈取部５の最前方部には分草体１０を設け、各分草体１０の後方には分草した穀稈を引起す引起装置１１をそれぞれ設け、引起装置１１の後方にはスターホイル１２を設け、スターホイル１２の上方には掻込装置１３を設け、スターホイル１２の下方には刈刃１４を設け、また、スターホイル１２の上方には株元側搬送装置１５の始端部を臨ませ、前記株元側搬送装置１５の上方には穂先側搬送装置１６を設ける。
【０００６】
前記株元側搬送装置１５の終端と前記脱穀装置３に穀稈を供給する穀稈供給搬送装置１８の始端部との間には、扱深さ調節装置１９を設ける。扱深さ調節装置１９は前記株元側搬送装置１５により搬送された穀稈を引継ぐ位置を、穀稈の稈身方向に変更し、脱穀装置３の脱穀室に供給するときの扱深さを調節する。扱深さ調節装置１９は引継搬送チエン（図示省略）と引継挾扼杆（図示省略）を有して構成される。引継搬送チエンは、前記縦支持筒６の基部側にフレーム２０の基部側を回動自在に取付け、該フレーム２０に設けた駆動歯車と案内ローラに掛け回す。前記引継挾扼杆は機体側に基部を固定した支持フレーム２１の先端に、引継搬送チエンに対して遠近に移動するように取付ける。
【０００７】
前記フレーム２０の下面側にはローラー２２を設け、ローラー２２は回動アーム２３の先端側に載置し、回動アーム２３の基部は前記支持台７側に軸２４により回動自在に軸着する。回動アーム２３にはロッド２５の先端を軸着し、ロッド２５の基部は扱深調節用アクチュエーター（モーター）２６により回動する作動アーム２７の先端に軸着する。前記ローラー２２から扱深調節用アクチュエーター２６の作動アーム２７にいたる機構が、扱深調節作動機構Ｓとなり、扱深調節作動機構Ｓによりフレーム２０の始端部を上下させて引継位置を変更させる。この場合、前記支持フレーム２１にはラグ式穂先引継搬送装置３０を設け、ラグ式穂先引継搬送装置３０とフレーム２０と引継挾扼杆は、それぞれの始端部を一体的に上下させて引継位置を変更させているが、これらの構成は任意であり、扱深さ調節装置１９の始端部と前記株元側搬送装置１５の終端との引継位置を変更させる構成であればよい。
【０００８】
前記穀稈供給搬送装置１８は、前記脱穀装置３の脱穀室の側部の穀稈搬送方向の始端部側と終端部側とに設けた歯車に供給用搬送チエン３１を掛け回し、供給用搬送チエン３１の上方には供給用搬送チエン３１と穀稈を挟持する供給用挾扼杆を設けて構成している。
前記扱深さ調節装置１９と前記穀稈供給搬送装置１８の搬送路中の任意部分には、扱深さセンサ３２を設ける。扱深さセンサ３２は穀稈搬送路に近い位置に設けた株元側センサと、該株元側センサ３３より穀稈搬送路に対して離れた位置に設けた穂先側センサ３４により構成する。実施例では、前記支持フレーム２１に株元側センサ３３と穂先側センサ３４を設け、扱深さ調節装置１９により搬送中の穀稈の長さを検出し、前記株元側センサ３３は前記引継搬送チエンの近い位置に設け、穂先側センサ３４は株元側センサ３３より前記引継搬送チエンに対して離れた位置に設けている。
【０００９】
しかして、前記扱深さ調節装置１９の扱深調節作動機構Ｓの扱深調節用アクチュエーター２６は、制御部３７が扱深さセンサ３２からの信号に基づき扱深さを略一定にするように制御するが、この場合、制御部３７は機体が所定速度を基準に低速走行のときパルス出力（オンとオフの反復するデジタル信号）とし、高速走行のときは最初に所定時間（略２〜４秒）パルス出力しその後は連続出力するように構成する。
【００１０】
即ち、パルス出力（信号）はオンとオフの反復であり、「出力オフ（信号）」の状態ときアクチュエーターは停止または作動が遅くなるので、連続出力に対してパルス出力ではアクチュエーターの作動が遅いこと、低速走行における作業ではアクチュエーターの作動が遅くても問題がないが、高速走行における作業では扱深さ調節が遅れると扱き残し等の不具合が出ることから、高速走行中の扱深さ調節は連続出力による迅速な対応が好適であるが、常に、連続出力のみでは、少量の穀稈のばらつきに対する反応が頻繁になって、所謂ハンチング現象となるので、最初に所定時間パルス出力して様子を見て、なお扱深さセンサ３２からの信号が連続して同方向のときは、連続出力すると、ハンチング現象を防止して迅速な対応が可能となる。
【００１１】
この場合、実施例では、低速と高速との判別は、車速センサ３８により0.4 〜0.5 ｍ／ｓの走行速度を基準にし、前記パルス出力は、0.4 秒のオンと0.6 秒のオフに設定しているが、これらは、圃場の走行条件や穀稈の刈取条件によって設定を変更することがある。また、パルス出力のパルス幅は、走行条件や刈取条件によって変更可能に構成することはもちろん可能である。
【００１２】
しかして、前記扱深調節作動機構Ｓは、扱深さセンサ３２の株元側センサ３３と穂先側センサ３４の中間に穀稈の穂先が位置するように、扱深さ調節装置１９を調節する。このとき、低速走行のときは株元側センサ３３と穂先側センサ３４のいずれかが穀稈の穂先を検知しても直ちに扱深調節作動機構Ｓを作動させずに、扱深さセンサ３２からの信号が安定したとき作動させるようにしているが、所定速度以上の高速走行のときは、株元側センサ３３と穂先側センサ３４のいずれかが穀稈の穂先を検知すると、直ちに扱深調節作動機構Ｓを作動させて、迅速に対応するように構成している。
【００１３】
図中、３９は自動扱深さ調節の入り切りをする扱深さ調節切替スイッチ、４０は扱深さ調節装置１９の上方を覆うカバー、４１は脱穀装置３の側部に設けたグレンタンク、４２はグレンタンク４１から穀粒を排出する排出用揚穀筒、４２は排出オーガーである。
【００１４】
【作用】
次に作用を述べる。
本発明は前記の構成であるから、走行装置２により機体を前進させると、各分草体１０により分草し、分草体１０により分草された穀稈は引起装置１１により引起され、スターホイル１２により後方に掻込まれ、穀稈は株元側搬送装置１５により株元側が挾持され、刈刃１４により切断される。
【００１５】
切断された穀稈は、株元側搬送装置１５により搬送されて扱深さ調節装置１９に引継がれ、扱深さ調節装置１９は穀稈供給搬送装置１８に穀稈を引き継ぐ。
この場合、株元側搬送装置１５の終端部に対して扱深さ調節装置１９の始端部は穀稈の稈身方向に遠近調節自在であるから、扱深さ調節装置１９の始端部位置を調節することにより穀稈の挟持位置を変更して、脱穀室に供給する穀稈の扱深さが略一定になるように調節する。
【００１６】
扱深さ調節装置１９の扱深調節作動機構Ｓは、フレーム２０の下面側に設けたローラー２２を回動アーム２３の先端側に載置し、回動アーム２３の基部を前記支持台７側に軸２４により回動自在に軸着し、回動アーム２３にはロッド２５の先端を軸着し、ロッド２５の基部は扱深調節用アクチュエーター２６の作動アーム２７の先端に軸着して構成しているから、制御部３７からの制御信号を受けると、扱深調節用アクチュエーター２６に通電して作動アーム２７を回転させ、作動アーム２７はロッド２５を押し引きして回動アーム２３を軸２４中心に回動させ、回動アーム２３の先端が上下することで扱深さ調節装置１９の先端を上下させて、扱深さ調節装置１９の始端部と株元側搬送装置１５の終端との引継点を変更して扱深さを調節する。
【００１７】
しかして、扱深さ調節は、扱深さ調節装置１９と穀稈供給搬送装置１８の搬送路中に設けた扱深さセンサ３２からの信号により制御し、穂先が株元側センサ３３と穂先側センサ３４の間に位置させて一定になるようにし、穂先側センサ３４に穂先が接触すると深扱きと判断して扱深調節作動機構Ｓを浅扱き方向（扱深さ調節装置１９を株元側搬送装置１５から離す）に作動させ、株元側センサ３３に穂先が接触していないときは浅扱きと判断して扱深調節作動機構Ｓを深扱き方向に作動させる。
【００１８】
この場合、制御部３７は機体が所定速度を基準に低速走行のときはパルス出力し、高速走行のときは最初に所定時間パルス出力しその後連続出力するように構成しているから、低速走行のときはパルス出力であり、連続出力よりパルス出力ではアクチュエーターの作動が遅いので微妙な調節が可能になる。
反対に、高速走行のときは連続出力するので、パルス出力に対してアクチュエーターの作動が早く、迅速な対応が行える。そして、本願は、連続出力する前に扱深さセンサ３２からの信号があったとき最初に所定時間パルス出力するので、搬送穀稈の搬送姿勢の一部のばらつきに対して微妙に対応してハンチング現象を防止でき、ハンチング現象の防止と迅速な対応を両立させている。
【００１９】
また、高速走行のときでも、最初にパルス出力するから、連続出力による扱深調節用アクチュエーター２６の作動により不動停止状態の扱深調節作動機構Ｓを直ちに作動させないので、作動ショックやきしみ等が発生を防止でき、引継を円滑・確実にする。
しかして、制御部３７は、搬送穀稈に長短が混在してなくても、搬送穀稈の姿勢にばらつきがあることを考慮して、低速走行のときは、扱深さセンサ３２の株元側センサ３３および穂先側センサ３４の信号が連続して安定した信号になったときに、扱深調節作動機構Ｓを作動させ、無用な扱深調節作動機構Ｓの作動を防止して、作動を安定させているが、所定速度以上の高速走行のときは、前記株元側センサ３３と穂先側センサ３４の信号により穀稈の長さの変化を感知すると、信号を受けてから所定時間待つことなく、直ちに扱深調節作動機構Ｓを作動させ、迅速な対応を可能にしている。即ち、高速走行中の、高速作業中では、作動遅れがないようにして、適切に制御している。
【００２０】
【効果】
本発明は、刈取穀稈を搬送する刈取部５の搬送装置１５と脱穀装置３に穀稈を搬送供給する穀稈供給搬送装置１８との間に、前記搬送装置１５との引継位置を変更して扱深さを調節しうる扱深さ調節装置１９を設け、該扱深さ調節装置１９は扱深さセンサ３２の信号に基づいて扱深さを自動的に略一定にするように構成したものにおいて、所定速度を基準に低速走行のとき前記扱深さ調節装置１９にパルス出力し、高速走行のときは最初に所定時間パルス出力しその後は連続出力して扱深さを略一定にするように構成したコンバインの扱深さ調節装置としたものであるから、高速走行中の扱深さ調節は最初に所定時間パルス出力してるので、連続出力であれば少量の穀稈のばらつきに対する頻繁な調節による所謂ハンチング現象を防止でき、パルス出力後は連続出力による迅速な対応ができ、ハンチング現象を防止して迅速な対応が可能となって、ハンチング現象の防止と迅速な対応の両立を可能にできる効果を奏する。
また、高速走行のときでも、最初にパルス出力により扱深調節用アクチュエーター２６を作動させるので、不動停止状態の扱深調節作動機構Ｓを急激に作動させないので、作動ショックやきしみ等が発生を防止でき、引継を円滑・確実にするという効果も期待できる。
【図面の簡単な説明】
【図１】コンバインの側面図。
【図２】刈取部の側面図。
【図３】扱深さ調節装置の側面図。
【図４】扱深さセンサの実施例の斜視図。
【図５】ブロック図。
【図６】出力状態説明図。
【図７】出力状態説明図。
【符号の説明】
１…機体、２…走行装置、３…脱穀装置、４…操縦部、５…刈取部、６…支持伝動筒、７…支持台、８…刈取部フレーム、９…刈取上下シリンダ、１０…分草体、１１…引起装置、１２…スターホイル、１３…掻込装置、１４…刈刃、１５…株元側搬送装置、１６…穂先側搬送装置、１８…穀稈供給搬送装置、１９…扱深さ調節装置、２０…フレーム、２１…支持フレーム、２２…ローラー、２３…回動アーム、２４…軸、２５…ロッド、２６…扱深調節用アクチュエーター、２７…作動アーム、３０…ラグ式穂先引継搬送装置、３１…供給用搬送チエン、３２…扱深さセンサ、３３…株元側センサ、３４…穂先側センサ、３７…制御部、３８…車速センサ、３９…扱深さ調節切替スイッチ、４０…カバー、４１…グレンタンク、４２…排出用揚穀筒、４２…排出オーガー。[0001]
[Industrial application fields]
The present invention relates to a combine handling depth adjusting device.
[0002]
[Prior art]
Conventionally, Japanese Utility Model Laid-Open No. 61-175935 discloses a transfer between a conveying device of a reaping part for conveying a harvested cereal and a cereal supply and conveying device for conveying cereal to a threshing device. A handling depth adjusting device capable of adjusting the handling depth by changing the position is provided, and the handling depth adjusting device is configured to automatically make the handling depth constant based on the signal of the handling depth sensor. In the above, there is described a configuration in which the treatment depth is made constant by changing the pulse width output to the treatment depth adjusting device in accordance with the change of the traveling speed.
[0003]
[Problems to be solved by the invention]
In the known example, the output pulse width is changed. However, since the pulse output (signal) is repeatedly turned on and off, the actuator is stopped or slowed down in the “output off (signal)” state. . Therefore, there is no problem in work in low-speed running, but there is a problem that delay in adjusting the depth of handling occurs in work in high-speed running. That is, the operation of the actuator is slower with pulse output than with continuous output.
However, if the handling depth adjusting device is simply moved quickly for adjustment, it may not be possible to carry over smoothly due to movement shocks, vibrations, and the like.
The present invention makes it possible to perform a quick response and to carry out the transfer smoothly and reliably.
[0004]
OBJECT OF THE INVENTION
Quick handling of depth control, smooth and reliable takeover.
[0005]
[Means to solve the problem]
The present invention changes the takeover position with the conveying device 15 between the conveying device 15 of the cutting unit 5 that conveys the harvested cereal and the cereal supply and conveying device 18 that conveys and supplies the cereal to the threshing device 3. A handling depth adjusting device 19 capable of adjusting the handling depth is provided, and the handling depth adjusting device 19 is configured to automatically make the handling depth substantially constant based on the signal of the handling depth sensor 32. In this case, a pulse is output to the treatment depth adjusting device 19 when traveling at a low speed based on a predetermined speed, and a pulse is first output for a predetermined time when traveling at a high speed, and then continuously output to make the treatment depth substantially constant. The combine handling depth adjusting device is configured as described above.
[0006]
【Example】
An embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 denotes a body frame, 2 denotes a traveling device, 3 denotes a threshing device provided at an upper position of the traveling device 2, and 5 denotes a cutting portion provided at a front position of the threshing device 3. is there. The mowing unit 5 rotatably attaches the base of the longitudinal support cylinder 6 in the front-rear direction to the upper part of the support base 7 provided in the body frame 1 and attaches the mowing part frame 8 to the tip of the longitudinal support cylinder 6. A cutting up / down cylinder 9 is provided between the cutting unit frame 8 and the body frame 1 to move the cutting unit 5 up and down. A forerunner 10 is provided at the foremost part of the cutting unit 5, a pulling device 11 for raising the weed cereals is provided at the back of each weed 10, and a star wheel 12 is provided at the back of the pulling device 11. The scraper 13 is provided above the star wheel 12, the cutting blade 14 is provided below the star wheel 12, and the starting end of the stock-source-side transport device 15 is faced above the star wheel 12, A tip-side transfer device 16 is provided above the stock-source-side transfer device 15.
[0006]
A handling depth adjusting device 19 is provided between the terminal end of the stock-source-side transport device 15 and the start end of the cereal supply and transport device 18 that supplies the threshing device 3 to the threshing device 3. The handling depth adjusting device 19 changes the position of taking over the cereals conveyed by the stocker-side conveying device 15 to the slimming direction of the cereals and supplies the handling depth when the threshing device 3 is supplied to the threshing chamber. Adjust. The handling depth adjusting device 19 is configured to have a take-up conveyance chain (not shown) and a take-up rod (not shown). The take-up and transport chain is attached to the base side of the vertical support cylinder 6 so that the base side of the frame 20 is rotatable, and is wound around a drive gear and a guide roller provided on the frame 20. The takeover rod is attached to the front end of the support frame 21 whose base is fixed to the machine body so as to move in the distance with respect to the takeover conveyance chain.
[0007]
A roller 22 is provided on the lower surface side of the frame 20, and the roller 22 is placed on the distal end side of the rotating arm 23, and the base of the rotating arm 23 is pivotally attached to the support base 7 side by a shaft 24. To do. The pivot arm 23 is pivotally attached to the tip of a rod 25, and the base of the rod 25 is pivotally attached to the tip of an operating arm 27 that is pivoted by a handle depth adjusting actuator (motor) 26. The mechanism from the roller 22 to the operating arm 27 of the operating depth adjusting actuator 26 is the operating depth adjusting operating mechanism S, and the starting end of the frame 20 is moved up and down by the operating depth adjusting operating mechanism S to change the takeover position. In this case, the support frame 21 is provided with a lug-type tip take-up / conveying device 30, and the lug-type tip take-up / conveying device 30, the frame 20, and the take-up rod are moved up and down integrally with each other to set the take-up position. Although changed, these configurations are arbitrary, and any configuration may be used as long as the takeover position between the starting end portion of the handling depth adjusting device 19 and the terminal end of the stocker side conveying device 15 is changed.
[0008]
The cereal supply and transfer device 18 hangs the supply transfer chain 31 around the gears provided on the side of the threshing chamber of the threshing device 3 on the start end side and the end side in the cereal transfer direction. Above the chain 31, a supply basket for holding the supply transport chain 31 and the grain basket is provided.
A handling depth sensor 32 is provided in an arbitrary portion of the handling path of the handling depth adjusting device 19 and the cereal supply and delivery device 18. The handling depth sensor 32 is configured by a stock-side sensor provided at a position close to the grain-carrying path and a tip-side sensor 34 provided at a position further away from the grain-carrying path than the stock-side sensor 33. In an embodiment, the support frame 21 is provided with a stock-side sensor 33 and a tip-side sensor 34, and the handling depth adjusting device 19 detects the length of the cereals being conveyed. The tip side sensor 34 is provided at a position closer to the transfer chain than the stock source side sensor 33.
[0009]
Therefore, the handle depth adjusting actuator 26 of the handle depth adjusting operation mechanism S of the handle depth adjusting device 19 is set so that the control unit 37 makes the handle depth substantially constant based on the signal from the handle depth sensor 32. In this case, the control unit 37 outputs a pulse output (a digital signal that repeatedly turns on and off) when the aircraft is traveling at a low speed with reference to a predetermined speed, and initially at a predetermined time (approximately 2 to 4) when traveling at a high speed. Second) pulse output and then continuous output.
[0010]
In other words, the pulse output (signal) is a repetition of ON and OFF, and when the output is OFF (signal), the actuator stops or slows down. There is no problem even if the actuator operation is slow in low-speed operation, but if the operation depth adjustment is delayed in high-speed operation, it may cause problems such as unhandled items. Prompt response by output is suitable, but always with only continuous output, the response to small varieties of cereals becomes frequent, so-called hunting phenomenon. When the signals from the handling depth sensor 32 are continuously in the same direction, if the signals are continuously output, the hunting phenomenon can be prevented and quick response can be made.
[0011]
In this case, in the embodiment, the low speed and the high speed are discriminated based on the running speed of 0.4 to 0.5 m / s by the vehicle speed sensor 38, and the pulse output is set to 0.4 seconds on and 0.6 seconds off. However, these settings may be changed depending on the traveling conditions of the field and the harvesting conditions of the cereals. Of course, the pulse width of the pulse output can be changed according to the running condition and the cutting condition.
[0012]
Thus, the handling depth adjusting operation mechanism S adjusts the handling depth adjusting device 19 so that the tip of the cereal is located between the stock-side sensor 33 and the tip-side sensor 34 of the handling depth sensor 32. . At this time, when the vehicle is traveling at a low speed, even if any of the stock side sensor 33 and the tip side sensor 34 detects the tip of the cereal, the handle depth adjustment operation mechanism S is not immediately activated, and the handling depth sensor 32 However, when the vehicle is traveling at a high speed of a predetermined speed or more, if either the stock source side sensor 33 or the tip side sensor 34 detects the tip of the cereal, the handling depth adjustment is immediately performed. The operation mechanism S is operated so as to respond quickly.
[0013]
In the figure, 39 is a handling depth adjustment switch for turning on and off automatic handling depth adjustment, 40 is a cover that covers the top of the handling depth adjustment device 19, 41 is a glen tank provided on the side of the threshing device 3, 42 Is a discharging cereal cylinder for discharging grains from the grain tank 41, and 42 is a discharging auger.
[0014]
[Action]
Next, the operation will be described.
Since the present invention is configured as described above, when the vehicle is advanced by the traveling device 2, the weeds are divided by the weed bodies 10, and the cereals weed by the weed bodies 10 are raised by the pulling device 11, and the star wheel 12. , The cedar is held by the stocker-side conveying device 15 and cut by the cutting blade 14.
[0015]
The cut cereal is transported by the stock source side transport device 15 and taken over by the handling depth adjustment device 19, and the handling depth adjustment device 19 takes over the cereal to the cereal supply and transport device 18.
In this case, since the starting end of the handling depth adjusting device 19 is adjustable in the slimming direction of the cereal with respect to the terminal end of the stock-source-side transport device 15, the position of the starting end of the handling depth adjusting device 19 is adjusted. By adjusting, the holding position of the cereals is changed and adjusted so that the handling depth of the cereals supplied to the threshing chamber becomes substantially constant.
[0016]
The handling depth adjusting operation mechanism S of the handling depth adjusting device 19 places the roller 22 provided on the lower surface side of the frame 20 on the distal end side of the rotating arm 23, and the base of the rotating arm 23 is on the side of the support base 7. The rod 24 is pivotally attached to the shaft 24, the tip of the rod 25 is pivotally attached to the pivot arm 23, and the base of the rod 25 is pivotally attached to the tip of the operating arm 27 of the operating depth adjusting actuator 26. Therefore, when receiving a control signal from the control unit 37, the operating depth adjusting actuator 26 is energized to rotate the operating arm 27, and the operating arm 27 pushes and pulls the rod 25 to pivot the rotating arm 23. 24, the tip of the turning arm 23 is moved up and down to raise and lower the tip of the handling depth adjusting device 19, and the starting end of the handling depth adjusting device 19 and the end of the stock-source-side transport device 15 Adjust the handle depth by changing the takeover point .
[0017]
Therefore, the handling depth adjustment is controlled by a signal from the handling depth sensor 32 provided in the handling path of the handling depth adjusting device 19 and the grain supply / feeding device 18, and the tip is the stock source side sensor 33 and the tip. It is positioned between the side sensors 34 so as to be constant, and when the tip contacts the tip side sensor 34, it is determined that the tip is deeply handled, and the handling depth adjusting operation mechanism S is set in the shallow handling direction (the handling depth adjusting device 19 is replaced by the stock company). When the tip is not in contact with the stock-side sensor 33, it is determined that the handling is shallow and the handling depth adjustment operating mechanism S is operated in the depth handling direction.
[0018]
In this case, since the control unit 37 is configured to output a pulse when the aircraft is traveling at a low speed based on a predetermined speed, and to output a pulse for a predetermined time first and then continuously output when the vehicle is traveling at a high speed, Sometimes it is a pulse output, and the actuator operation is slower at pulse output than continuous output, so fine adjustment is possible.
On the other hand, since it continuously outputs during high-speed driving, the actuator operates quickly and can respond quickly to pulse output. And since this application outputs a pulse for a predetermined time first when there is a signal from the handling depth sensor 32 before continuous output, it responds delicately to some variation in the transport posture of the transporting culm. Hunting phenomenon can be prevented, and both prevention of hunting phenomenon and quick response are compatible.
[0019]
In addition, even when traveling at a high speed, the pulse is output first, so the operating depth adjusting operation mechanism S in the immovable stop state is not immediately operated by the operation of the operating depth adjusting actuator 26 by continuous output, so that an operating shock, a squeak, or the like occurs. To ensure smooth and reliable takeover.
Therefore, the control unit 37 takes into account that the posture of the transported culm varies even when the transported culm is not mixed, and when the vehicle is traveling at a low speed, When the signals of the side sensor 33 and the tip side sensor 34 become a stable signal continuously, the handling depth adjustment operating mechanism S is operated, and the operation of the unnecessary handling depth adjustment operating mechanism S is prevented and the operation is performed. Stabilized, but when traveling at a speed higher than a predetermined speed, if a change in the length of the cereal is detected by the signals of the stock-side sensor 33 and the tip-side sensor 34, it waits for a predetermined time after receiving the signal. In this case, the handling depth adjusting operation mechanism S is immediately operated to enable quick response. In other words, during high-speed running and during high-speed work, the operation is appropriately controlled so that there is no operation delay.
[0020]
【effect】
The present invention changes the takeover position with the conveying device 15 between the conveying device 15 of the cutting unit 5 that conveys the harvested cereal and the cereal supply and conveying device 18 that conveys and supplies the cereal to the threshing device 3. A handling depth adjusting device 19 capable of adjusting the handling depth is provided, and the handling depth adjusting device 19 is configured to automatically make the handling depth substantially constant based on the signal of the handling depth sensor 32. In this case, a pulse is output to the treatment depth adjusting device 19 when traveling at a low speed based on a predetermined speed, and a pulse is first output for a predetermined time when traveling at a high speed, and then continuously output to make the treatment depth substantially constant. Since the combine depth adjustment device is configured as described above, the depth adjustment during high-speed running is initially pulsed for a predetermined time. So-called hunting phenomenon can be prevented After pulse output can prompt action by continuous output, making it possible to respond quickly to prevent the hunting phenomenon, the effect that can enable both prevention and rapid response hunting phenomenon.
In addition, even when traveling at high speeds, the treatment depth adjustment actuator 26 is first activated by a pulse output, so that the treatment depth adjustment operation mechanism S in a stationary stop state is not suddenly operated, thereby preventing the occurrence of operation shocks, squeaks, and the like. It is possible to expect the effect of smooth and reliable takeover.
[Brief description of the drawings]
FIG. 1 is a side view of a combine.
FIG. 2 is a side view of a cutting part.
FIG. 3 is a side view of a handling depth adjusting device.
FIG. 4 is a perspective view of an embodiment of a handling depth sensor.
FIG. 5 is a block diagram.
FIG. 6 is an explanatory diagram of an output state.
FIG. 7 is an explanatory diagram of an output state.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Airframe, 2 ... Traveling device, 3 ... Threshing device, 4 ... Steering part, 5 ... Cutting part, 6 ... Supporting transmission cylinder, 7 ... Support stand, 8 ... Cutting part frame, 9 ... Cutting top and bottom cylinder, 10 ... minute Grass body, 11 ... Pulling device, 12 ... Starfoil, 13 ... Scraping device, 14 ... Cutting blade, 15 ... Stock-source side transport device, 16 ... Ear tip side transport device, 18 ... Grain supply / feed device, 19 ... Handling depth 20 ... Frame, 21 ... Support frame, 22 ... Roller, 23 ... Rotating arm, 24 ... Shaft, 25 ... Rod, 26 ... Actuating depth adjusting actuator, 27 ... Actuating arm, 30 ... Lug-type tip takeover Conveying device, 31 ... Conveying chain for supply, 32 ... Depth sensor, 33 ... Stock side sensor, 34 ... Tip side sensor, 37 ... Control unit, 38 ... Vehicle speed sensor, 39 ... Depth adjustment switch, 40 ... Cover, 41 ... Glen tank, 42 ... Discharge AgeKoku cylinder, 42 ... discharge auger.

Claims

The handling depth is changed between the transport device 15 of the cutting unit 5 for transporting the harvested cereal and the cereal supply and transport device 18 for transporting the cereal to the threshing device 3 by changing the takeover position with the transport device 15. A handling depth adjusting device 19 is provided, and the handling depth adjusting device 19 is configured to automatically make the handling depth substantially constant based on the signal of the handling depth sensor 32. Based on the speed, a pulse is output to the treatment depth adjusting device 19 when traveling at a low speed, and when traveling at a high speed, a pulse is output first for a predetermined time, and then continuously output to make the treatment depth substantially constant. Combine depth control device.