JP2011092089A

JP2011092089A - Shift controlling apparatus for combine harvester

Info

Publication number: JP2011092089A
Application number: JP2009249074A
Authority: JP
Inventors: Hidetaka Hirayama; 秀孝平山; Hiroki Matsuzawa; 宏樹松澤
Original assignee: Iseki and Co Ltd; Iseki Agricultural Machinery Mfg Co Ltd
Current assignee: Iseki and Co Ltd; Iseki Agricultural Machinery Mfg Co Ltd
Priority date: 2009-10-29
Filing date: 2009-10-29
Publication date: 2011-05-12

Abstract

<P>PROBLEM TO BE SOLVED: To optimize driving speed of a reaping and transporting part at start of a combine harvester and smoothly perform reaping work. <P>SOLUTION: Gear shift setting of a traveling continuously variable transmission (15) and a reaping continuously variable transmission (19) is performed corresponding to a detection value of a main gear shift lever position sensor (SE1) when an on/off switch (SW1) for reaping automatic gear shift is turned on, the traveling continuously variable transmission (15) is decelerated according to a reaping drive speed of the reaping continuously variable transmission (19) when the detection value of a reaping speed change motor position detection sensor SE2 is lower than a preset level after a lapse of a prescribed period, and the speed change of the traveling continuously variable transmission (15) corresponding to the driving speed of the reaping continuously variable transmission (19) is stopped by a controller (35) when the detected value is higher than the preset level. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

この発明は、コンバインの変速制御装置に関するものである。 The present invention relates to a combine shift control device.

コンバインにおいて、走行装置の走行速度を無段階に変速する走行無段変速装置、収穫作業装置の作動速度を無段階に変速する作業用無段変速装置、及び、変速用制御手段が設けられ、変速用制御手段が、走行変速用操作具が中立位置から走行用不感帯を越えて走行出力開始位置になると出力を開始し、それから更に高速側に操作されるほど高速変速状態となるように走行用無段変速装置を変速操作し、及び、走行変速用操作具が中立位置から作業用不感帯を越えて作業出力開始位置になると出力を開始し、それから更に高速側に操作されるほど高速変速状態となるように作業用無段変速装置を変速操作する形態で、且つ、作業出力開始位置を走行出力開始位置よりも中立位置側として、走行用無段変速装置及び作業用無段変速装置を変速操作するようにしたものは、公知である（特許文献１）。 The combine is provided with a continuously variable transmission that continuously changes the traveling speed of the traveling device, a continuously variable transmission for operation that continuously changes the operating speed of the harvesting work device, and a shift control means. The control means starts the output when the travel gear operating tool moves from the neutral position to the travel output start position beyond the travel dead zone, and then the speed change state is set so that the higher speed operation is performed thereafter. When the shifting gear is operated and the operating gear for shifting gear is moved from the neutral position to the work output start position beyond the work dead zone, the output is started. In this way, the operation continuously variable transmission is operated in a shifting manner, and the operation output start position is set to the neutral position side with respect to the travel output start position. To way ones it is known (Patent Document 1).

また、機体の走行が停止したとき、穀稈の刈り取りと搬送をする前処理部の駆動を停止させる機能と前処理部が所定の高さまで上昇したときに、前処理部の駆動を停止させる機能を備えたコンバインにおいて、このコンバインに強制掻き込みスイッチを設け、強制掻き込みスイッチを入り操作したときに、機体の走行をもしくは前処理部の上昇にかかわらず、前処理部を駆動させるように構成したコンバインは、公知である（特許文献２）。 In addition, when the aircraft stops traveling, the function of stopping the driving of the preprocessing unit that harvests and transports the cereal and the function of stopping the driving of the preprocessing unit when the preprocessing unit rises to a predetermined height. This combine is provided with a forced scratching switch, and when the forced scratching switch is turned on, the preprocessing unit is driven regardless of whether the aircraft is running or the preprocessing unit is raised. Such a combine is known (Patent Document 2).

特許第３７５６１４０号公報Japanese Patent No. 3756140 特許第３７５６１２０号公報Japanese Patent No. 3756120

前記特許文献１の技術では、変速用制御手段が、走行変速用操作具が中立位置から走行用不感帯を越えて走行出力開始位置になると出力を開始し、それから更に高速側に操作されるほど高速変速状態となるように走行用無段変速装置を変速操作し、また、走行変速用操作具が中立位置から作業用不感帯を越えて作業出力開始位置になると出力を開始し、それから更に高速側に操作されるほど高速変速状態となるように作業用無段変速装置を変速操作する形態であるので、走行停止状態から走行開始状態になった作業開始時の低速走行状態では、作業無段変速装置の低速駆動や駆動の遅れにより刈取穀稈に対する作業速度が不足したり、また、作業部の穀稈搬送量の増大時に、作業部の駆動効率不良による駆動速度低下が発生するような不具合が発生することがあった。 In the technique of Patent Document 1, the speed change control means starts output when the travel speed change operating tool reaches the travel output start position from the neutral position beyond the travel dead zone, and then the speed increases as the speed change operation unit is operated further to the higher speed side. Shifting the traveling continuously variable transmission so that the shifting state is achieved, and when the traveling shifting operation tool crosses the work dead zone from the neutral position to the work output start position, the output starts, and then further toward the high speed side. Since the operation continuously variable transmission is operated so as to be in a high-speed transmission state as the operation is performed, the work continuously variable transmission device is in a low-speed traveling state at the start of the operation from the traveling stop state to the traveling start state. Insufficient drive speed due to low-speed drive or drive delay, or a decrease in drive speed due to poor drive efficiency of the work unit when the amount of cereals transported by the work unit increases It may occur.

そこで、本発明はこのような不具合を解消し、低速走行状態でも作業部の駆動速度を適正化しようとするものである。 Therefore, the present invention aims to eliminate such problems and optimize the driving speed of the working unit even in a low-speed traveling state.

この発明は、このような従来技術のもつ問題点を解決するために、次の技術的手段を講じた。
請求項１記載の発明は、走行装置（２）変速駆動用の走行無段変速装置（１５）と、該走行無段変速装置（１５）を手動で変速操作する主変速レバー（１７）と、該主変速レバー（１７）の変速操作位置検出用の主変速レバーポジションセンサ（ＳＥ１）と、刈取搬送部（８）変速駆動用の刈取無段変速装置（１９）と、該刈取無段変速装置（１９）変速作動用の刈取変速モータ（３７）と、該刈取変速モータ（３７）の変速作動位置を検出する刈取変速モータ位置検出センサ（ＳＥ２）とを備えたコンバインにおいて、前記走行無段変速装置（１５）と刈取無段変速装置（１９）とを関連させて変速制御する走行刈取関連変速制御の入切を指定する刈取自動変速入切スイッチ（ＳＷ１）を設け、該刈取自動変速入切スイッチ（ＳＷ１）を切り指定にした場合に、前記主変速レバーポジションセンサ（ＳＥ１）の検出値に応じて前記走行無段変速装置（１５）を変速駆動して、刈取無段変速装置（１９）の変速駆動を停止し、前記刈取自動変速入切スイッチ（ＳＷ１）を入り指定にした際には、前記主変速レバーポジションセンサ（ＳＥ１）の検出値に応じて前記走行無段変速装置（１５）及び刈取無段変速装置（１９）を変速駆動し、所定時間後に刈取変速モータ位置検出センサ（ＳＥ２）の検出値が設定値よりも低いときには、前記刈取無段変速装置（１９）の刈取駆動速度に応じた走行駆動速度になるように走行無段変速装置（１５）を減速し、また、所定時間後に刈取変速モータ位置検出センサ（ＳＥ２）の検出値が設定値よりも高いときには、刈取無段変速装置（１９）の刈取駆動速度に応じた走行無段変速装置（１５）の変速を停止するコントローラ（３５）を備えたことを特徴とするコンバインの変速制御装置とする。 The present invention takes the following technical means in order to solve such problems of the prior art.
The invention described in claim 1 includes a travel device (2) a travel continuously variable transmission (15) for speed change drive, a main transmission lever (17) for manually shifting the travel continuously variable transmission (15), A main shift lever position sensor (SE1) for detecting a shift operation position of the main shift lever (17), a cutting and conveying section (8) a cutting continuously variable transmission (19) for shifting driving, and the cutting continuously variable transmission (19) In the combine provided with a cut-off transmission motor (37) for shifting operation and a cut-off shift motor position detection sensor (SE2) for detecting a shift operation position of the cutting shift motor (37), the traveling continuously variable transmission There is provided a cutting automatic shift on / off switch (SW1) for designating on / off of traveling cutting-related shift control for performing shift control in association with the device (15) and the cutting continuously variable transmission (19). Switch off (SW1) When specified, the traveling continuously variable transmission (15) is driven to change speed according to the detected value of the main transmission lever position sensor (SE1), and the variable speed driving of the cutting continuously variable transmission (19) is stopped. When the cutting automatic shift on / off switch (SW1) is turned on and specified, the traveling continuously variable transmission (15) and the cutting continuously variable transmission according to the detection value of the main shift lever position sensor (SE1). (19) is driven to shift, and after a predetermined time, when the detected value of the cutting gear motor position detection sensor (SE2) is lower than the set value, the travel driving speed according to the cutting driving speed of the cutting continuously variable transmission (19). The traveling continuously variable transmission (15) is decelerated so that, when the detected value of the cutting shift motor position detection sensor (SE2) is higher than the set value after a predetermined time, the cutting continuously variable transmission (19) Reaper and combine the shift control device characterized by comprising a controller (35) to stop the transmission of the driving speed running continuously variable transmission according to (15).

請求項２記載の発明は、請求項１の発明において、前記刈取搬送部（８）の上昇時に刈取駆動を自動停止させる制御を入切する刈取自動停止スイッチ（ＳＷ２）を設け、該刈取自動停止スイッチ（ＳＷ２）を入りにすると、刈取搬送部（８）の上昇時における刈取駆動の自動停止を実行し、且つ、前記刈取変速モータ位置検出センサ（ＳＥ２）の検出値が設定値よりも高いときには、前記刈取自動変速入切スイッチ（ＳＷ１）が切り状態と同様の変速制御をし、また、刈取変速モータ位置検出センサ（ＳＥ２）の検出値が設定値よりも低いときには、前記刈取自動変速入切スイッチ（ＳＷ１）が入り状態と同様の変速制御をするコントローラ（３５）を備えたことを特徴とするコンバインの変速制御装置とする。 According to a second aspect of the present invention, in the first aspect of the present invention, there is provided a reaping automatic stop switch (SW2) for turning on and off a control for automatically stopping the reaping drive when the reaping transport unit (8) is raised, and the reaping automatic stop is provided. When the switch (SW2) is turned on, the cutting drive is automatically stopped when the cutting conveyance section (8) is lifted, and the detection value of the cutting shift motor position detection sensor (SE2) is higher than a set value. When the cutting automatic shift on / off switch (SW1) performs the same shift control as in the cut state, and when the detection value of the cutting shift motor position detection sensor (SE2) is lower than a set value, A combine shift control device comprising a controller (35) for performing a shift control similar to that in the on state of the switch (SW1).

請求項３記載の発明は、請求項１の発明において、掻込操作具により入切することのできる掻込操作スイッチ（ＳＷ３）を設け、該掻込操作スイッチ（ＳＷ３）が入り状態である場合には、前記主変速レバー（１７）が中立位置にあっても、予め設定した所定速度で前記刈取無段変速装置（１９）を駆動し、前記走行無段変速装置（１５）の駆動を停止するコントローラ（３５）を備えたことを特徴とするコンバインの変速制御装置とする。 The invention according to claim 3 is a case in which, in the invention of claim 1, a scratching operation switch (SW3) that can be turned on and off by a scraping operation tool is provided, and the scraping operation switch (SW3) is in an on state. Even if the main transmission lever (17) is in the neutral position, the cutting continuously variable transmission (19) is driven at a predetermined speed set in advance, and the driving of the traveling continuously variable transmission (15) is stopped. And a combine shift control device characterized by comprising a controller (35).

請求項１記載の発明によると、刈取自動変速入切スイッチ（ＳＷ１）を入り指定にした際に、刈取変速モータ位置検出センサ（ＳＥ２）の検出値が設定値よりも低いときには、刈取無段変速装置（１９）の刈取駆動速度に追従するように所定の減速基準に基づき走行無段変速装置（１５）を減速するので、走行停止状態から走行を開始した低速走行での刈取開始時には、刈取搬送部（８）の駆動遅れによる刈取穀稈の踏み倒しによる穀稈の姿勢不良を回避し、また、刈取搬送部（８）の穀稈搬送量の増大時に、刈取搬送部（８）の駆動効率不良による駆動速度低下が発生すると、車速を遅くすることができ、刈取負荷に応じた走行速度を自動的に設定し、穀稈の詰りによる機械の破損を防止し、耐久性及び刈取作業精度の向上を図ることができる。 According to the first aspect of the present invention, when the cutting automatic gear shift on / off switch (SW1) is turned on and designated and the detection value of the cutting gear motor position detection sensor (SE2) is lower than the set value, the cutting stepless speed change is performed. Since the traveling continuously variable transmission (15) is decelerated based on a predetermined deceleration reference so as to follow the cutting drive speed of the device (19), the cutting conveyance is performed at the time of starting the cutting in the low-speed traveling started from the traveling stop state. The posture failure of the cereals caused by stepping over the harvested cereals due to the drive delay of the part (8) is avoided, and the driving efficiency of the reaping and transporting unit (8) is poor when the amount of cereals transported by the harvesting and transporting unit (8) is increased If the drive speed is reduced due to, the vehicle speed can be reduced, the running speed according to the cutting load is automatically set, the machine is prevented from being damaged due to clogging of the cereal, and the durability and cutting work accuracy are improved. Can be That.

請求項２記載の発明によると、請求項１の発明の効果に加えて、コンバインの畦際での旋回走行の都度、刈取搬送部（８）の駆動を手動操作により入切する必要もなく、刈取搬送部（８）の昇降に応じて駆動の入切をすることができ、旋回時の操作を簡単にすることができる。 According to the invention of claim 2, in addition to the effect of the invention of claim 1, it is not necessary to manually turn on and off the drive of the cutting and conveying unit (8) each time turning is performed at the edge of the combine, The drive can be turned on and off according to the raising and lowering of the cutting and conveying section (8), and the operation during turning can be simplified.

請求項３記載の発明によると、請求項１の発明の効果に加えて、走行停止時の掻込操作スイッチ（ＳＷ３）の入り状態では、刈取無段変速装置（１９）を所定速度で駆動し、刈取搬送部（８）で穀稈の引起し、切断及び搬送を円滑に行なうことができる。 According to the third aspect of the present invention, in addition to the effect of the first aspect of the invention, the cutting continuously variable transmission (19) is driven at a predetermined speed when the drive operation switch (SW3) is turned on when traveling is stopped. In the cutting and conveying unit (8), the cereal can be raised, cut and conveyed smoothly.

コンバインの側面図である。It is a side view of a combine. コンバインの平面図である。It is a top view of a combine. コンバインの伝動展開図である。It is a transmission development view of a combine. 制御ブロック図である。It is a control block diagram. 制御フローチャート図である。It is a control flowchart figure. 制御フローチャートである。It is a control flowchart. 制御フローチャートである。It is a control flowchart.

以下、図面に示すこの発明の実施例について説明する。
まず、本発明を備えたコンバインの全体構成について説明する。図１及び図２に示すように、コンバイン１の走行車体２の下方には、左右一対のクローラ走行装置３，３を配設し、走行車体２上には、右側前部に操縦部４を、操縦部４の後方にグレンタンク６を、左側前部に脱穀部５を、脱穀部５及びグレンタンク６の後方に排稾処理装置７をそれぞれ配設している。操縦部４及び脱穀部５の前方には、植立穀稈を分草引起しながら刈り取り後方の脱穀部５に向けて搬送する刈取搬送部８を昇降自在に設けている。 Embodiments of the present invention shown in the drawings will be described below.
First, the overall structure of a combine equipped with the present invention will be described. As shown in FIGS. 1 and 2, a pair of left and right crawler traveling devices 3, 3 are disposed below the traveling vehicle body 2 of the combine 1, and a control unit 4 is disposed on the traveling vehicle body 2 at the right front portion. The grain tank 6 is disposed behind the control unit 4, the threshing unit 5 is disposed at the left front part, and the slaughtering unit 7 is disposed behind the threshing part 5 and the grain tank 6. In front of the control unit 4 and the threshing unit 5, a cutting and conveying unit 8 that conveys the planted cereals to the threshing unit 5 on the rear side while raising the weeds is provided so as to be raised and lowered.

次に、図３に基づきコンバインの伝動構成について説明する。
エンジンＥの左右一側の出力軸１１から排出伝動装置１２を経由して穀粒排出装置１３を駆動し、グレンタンク６の穀粒を排出するようにしている。また、左右他側の出力軸１１から走行ベルト伝動装置１４を経て静油圧式の走行無段変速装置１５に動力を伝達し、走行無段変速装置１５を主変速レバー１７（図１に示す）で手動変速した走行動力をミッションケース１６内の走行伝動装置を経由して左右クローラ走行装置２，２に伝達している。 Next, the transmission structure of the combine will be described based on FIG.
The grain discharge device 13 is driven from the output shaft 11 on the left and right sides of the engine E via the discharge transmission device 12 to discharge the grain in the Glen tank 6. Further, power is transmitted from the left and right output shafts 11 to the hydrostatic traveling continuously variable transmission 15 via the traveling belt transmission 14, and the traveling continuously variable transmission 15 is connected to the main transmission lever 17 (shown in FIG. 1). The traveling power manually shifted in (1) is transmitted to the left and right crawler traveling devices 2 and 2 via the traveling transmission device in the mission case 16.

また、左右他側の出力軸１１から刈取・脱穀伝動装置１８を経由して刈取搬送部８駆動用の静油圧式の刈取無段変速装置１９へ動力を伝達している。しかして、刈取無段変速装置１９で変速された刈取動力が刈取伝動ケース８ａの刈取出力軸８ｂを経て刈取搬送部８の刈取入力軸２０に入力され、刈取無段変速装置１９で変速された動力により刈取搬送部８の穀稈引起し装置、刈刃装置、穀稈搬送装置等が駆動される。また、刈取伝動ケース８ａのフィードチエン出力軸８ｃを経て脱穀部５のフィードチエン２１に動力が伝達されるように構成している。 In addition, power is transmitted from the output shaft 11 on the left and right other side to the hydrostatic continuously variable transmission 19 for driving the cutting conveyance unit 8 via the cutting / threshing transmission device 18. Thus, the cutting power shifted by the cutting continuously variable transmission 19 is input to the cutting input shaft 20 of the cutting conveying unit 8 via the cutting output shaft 8b of the cutting transmission case 8a, and is shifted by the cutting continuously variable transmission 19. The power is used to drive the culm pulling device, the cutting blade device, the culm transporting device, and the like of the chopping and transporting unit 8. Moreover, it is comprised so that motive power may be transmitted to the feed chain 21 of the threshing part 5 through the feed chain output shaft 8c of the cutting transmission case 8a.

また、刈取・脱穀伝動装置１８の下手側から脱穀伝動装置２２に脱穀動力を分岐し、この脱穀伝動装置２２を経由して脱穀部５の排稾搬送装置２３、二番処理胴２４、排塵処理胴２５、扱胴２６、唐箕２７、一番揚穀装置２８、第２唐箕２９、二番揚穀装置３０、排塵ファン３１、揺動選別棚３２及び排稾処理装置７へ動力を伝達している。 Further, the threshing power is branched from the lower side of the mowing / threshing transmission device 18 to the threshing transmission device 22, and the scouring and conveying device 23 of the threshing unit 5, the second processing cylinder 24, and the dust are discharged via the threshing transmission device 22. Power is transmitted to the processing cylinder 25, the handling cylinder 26, the karachi 27, the first cerealing device 28, the second karasu 29, the second cerealing device 30, the dust exhaust fan 31, the swing sorting shelf 32, and the septic processing device 7 is doing.

次に、コンバインのクローラ走行装置３，３と刈取搬送部８の回転変速制御構成について説明する。
コントローラ３５の入力側には、センサ類及びスイッチを接続している。刈取自動変速入切スイッチＳＷ１（走行速度と刈取駆動速度とを関連的に変速する変速制御の入切をする）、刈取自動停止スイッチ（刈取搬送部８が所定高さ以上に上昇すると刈取搬送部８の駆動を自動停止する制御を停止する）ＳＷ２、掻込ぺダルスイッチＳＷ３、刈取無段変速装置１９増速用の刈取増速スイッチＳＷ４、刈取無段変速装置１９減速用の刈取減速スイッチＳＷ５を接続している。 Next, a description will be given of a rotational speed change control configuration of the combine crawler travel devices 3 and 3 and the cutting and conveying unit 8.
Sensors and switches are connected to the input side of the controller 35. Automatic reaping on / off switch SW1 (turns on and off the shift control that shifts the traveling speed and reaping drive speed relative to each other), automatic reaping stop switch (the reaping and conveying section when the reaping and conveying section 8 rises above a predetermined height) SW2 is stopped, the control of automatically stopping driving 8), the cutting pedal switch SW3, the cutting speed increasing switch SW4 for speeding up the cutting continuously variable transmission 19, and the cutting speed reducing switch SW5 for reducing the cutting continuously variable transmission 19 Is connected.

また、主変速レバーポジションセンサＳＥ１（走行無段変速装置１５変速用の主変速レバー１７の操作位置を検出する）、刈取変速モータ位置検出センサＳＥ２（刈取無段変速装置１９変速用の刈取変速モータ３７の変速位置を検出する）、車速センサＳＥ３、刈取搬送部８の回転数を検出する刈取回転数検出センサＳＥ４を接続している。 Further, the main transmission lever position sensor SE1 (detects the operation position of the main transmission lever 17 for the traveling continuously variable transmission 15), the cutting gear motor position detection sensor SE2 (the cutting transmission motor for the cutting continuously variable transmission 19). 37), a vehicle speed sensor SE3, and a cutting rotation speed detection sensor SE4 for detecting the rotation speed of the cutting conveyance unit 8 are connected.

また、コントローラ３５の出力側には駆動手段を介して刈取変速モータ３７、走行無段変速装置１５の増速変速用バルブ３８、走行無段変速装置１５の減速変速用バルブ３９を接続している。 Further, the output side of the controller 35 is connected with a cutting speed change motor 37, a speed increasing speed changing valve 38 of the traveling continuously variable transmission 15, and a speed reducing speed changing valve 39 of the traveling continuously variable transmission 15 through driving means. .

次に、コンバインの刈取搬送部８の変速制御内容について説明する。
このコンバインの変速制御装置は、刈取搬送部８の駆動速度と機体の走行速度を別々に変速できるコンバインにおいて、刈取搬送部８の刈取自動変速の入切を指定する刈取自動変速入切スイッチＳＷ１を備えている。そして、刈取自動変速入切スイッチＳＷ１を切り指定にした際には、主変速レバー１７の操作位置に応じた駆動速度になるように走行無段変速装置１５及び刈取無段変速装置１９を変速し、走行速度に応じた刈取変速を停止する。 Next, the shift control contents of the combine cutting and conveying unit 8 will be described.
This combine shift control device includes a cutting automatic shift on / off switch SW1 for specifying on / off of automatic cutting of the cutting / conveying unit 8 in a combine that can separately change the driving speed of the cutting / conveying unit 8 and the traveling speed of the machine body. I have. When the cutting automatic shift on / off switch SW1 is specified to be turned off, the traveling continuously variable transmission 15 and the cutting continuously variable transmission 19 are shifted so that the driving speed according to the operation position of the main transmission lever 17 is obtained. Then, the cutting shift according to the traveling speed is stopped.

また、刈取自動変速入切スイッチＳＷ１を入り指定にした際には、主変速レバー１７の操作位置に応じて走行無段変速装置１５及び刈取無段変速装置１９を変速設定し、所定時間後に刈取変速モータ位置検出センサＳＥ２の検出値が設定値より低いときには、走行無段変速装置１５を刈取速度に応じた減速変速する。また、検出値が設定値より高いときには、走行無段変速装置１５の刈取速度に応じた減速変速を停止する。 In addition, when the cut automatic shift on / off switch SW1 is turned on and specified, the travel continuously variable transmission 15 and the cut continuously variable transmission 19 are set to shift according to the operation position of the main transmission lever 17, and the cut is performed after a predetermined time. When the detection value of the speed change motor position detection sensor SE2 is lower than the set value, the traveling continuously variable transmission 15 is decelerated and shifted according to the cutting speed. Further, when the detected value is higher than the set value, the deceleration shift according to the cutting speed of the traveling continuously variable transmission 15 is stopped.

前記構成によると、刈取自動変速入切スイッチＳＷ１を入り指定にした際には、刈取搬送部８の刈取駆動速度が低いときには走行無段変速装置１５を減速変速するので、停止から走行を開始した低速走行中の刈取開始時において、走行速度を適正化し、刈取搬送部８の駆動遅れによる刈取穀稈の踏み倒しによる穀稈の姿勢不良を回避できる。また、刈取搬送部８の穀稈搬送量の増大時において、刈取搬送部８の駆動効率不良による刈取搬送部８の駆動速度低下時には、刈取駆動速度に対応するように車速を遅くすることができ、刈取負荷に応じた車速を自動的に設定し、穀稈の詰りによる機械の破損を防止し、耐久性及び刈取作業精度の向上を図ることができる。 According to the above-described configuration, when the cutting automatic shift on / off switch SW1 is turned on and specified, the traveling continuously variable transmission 15 is decelerated and shifted when the cutting drive speed of the cutting transport unit 8 is low. At the start of harvesting during low-speed traveling, the traveling speed is optimized, and a poor posture of the grain culm caused by stepping over the harvested corn straw due to the drive delay of the harvesting transport unit 8 can be avoided. In addition, when the cereal conveyance amount of the cutting and conveying unit 8 is increased, when the driving speed of the cutting and conveying unit 8 is reduced due to poor driving efficiency of the cutting and conveying unit 8, the vehicle speed can be slowed to correspond to the cutting and driving speed. It is possible to automatically set the vehicle speed according to the cutting load, prevent breakage of the machine due to clogging of the cereal, and improve durability and cutting work accuracy.

また、前記変速制御において、刈取自動停止スイッチＳＷ２を切りにし、刈取搬送部８の上昇時に刈取搬送部８の駆動を自動停止させる機能が作動しない状態では、主変速レバー１７の操作位置に応じて走行無段変速装置１５及び刈取無段変速装置１９を変速設定し、所定時間後に刈取無段変速装置１９の駆動速度が低速の場合には、刈取駆動速度に応じた走行駆動速度になるように走行無段変速装置１９を変速設定するようにしている。 In the shift control, when the cutting automatic stop switch SW2 is turned off and the function of automatically stopping the driving of the cutting and conveying unit 8 when the cutting and conveying unit 8 is raised does not operate, the shift control is performed according to the operation position of the main transmission lever 17. When the driving continuously variable transmission 15 and the cutting continuously variable transmission 19 are set to shift, and the driving speed of the cutting continuously variable transmission 19 is low after a predetermined time, the traveling driving speed is set to correspond to the cutting driving speed. The traveling continuously variable transmission 19 is set to shift.

また、刈取自動停止スイッチＳＷ２が入りの場合には、刈取変速モータ位置検出センサＳＥ２の検出値が設定値より低いときには、主変速レバーポジションセンサＳＥ１の検出値に応じて走行無段変速装置１５及び刈取無段変速装置１９を変速設定し、所定時間後に走行無段変速装置１５を刈取速度に応じた変速速度に設定する。また、検出値が設定値より高いときには、刈取無段変速装置１９の変速を停止するようにしている。 When the automatic cutting switch SW2 is turned on and the detection value of the cutting gear motor position detection sensor SE2 is lower than the set value, the continuously variable transmission 15 and the traveling continuously variable transmission 15 and the transmission gear 15 according to the detection value of the main transmission lever position sensor SE1. The cutting continuously variable transmission 19 is set to shift, and after a predetermined time, the traveling continuously variable transmission 15 is set to a shift speed corresponding to the cutting speed. When the detected value is higher than the set value, the shifting of the cutting continuously variable transmission 19 is stopped.

このように構成すると、低速走行時に刈取無段変速装置１９の駆動速度に応じて走行無段変速装置１５の駆動速度を設定しながら、コンバインの畔際での旋回の都度、刈取搬送部８の駆動を手動操作により入切する必要もなく、刈取搬送部８の昇降に応じて駆動の入切が可能となり、旋回時の操作を簡単にすることができる。 With this configuration, the driving speed of the continuously variable transmission 15 is set according to the driving speed of the cutting continuously variable transmission 19 when traveling at a low speed, while the cutting transport unit 8 There is no need to manually turn the drive on and off, and the drive can be turned on and off in accordance with the lifting and lowering of the cutting and conveying unit 8, and the operation during turning can be simplified.

また、操縦部４の座席にオペレータが座った状態で例えば左足で操作できる位置に掻込ぺダル（図示省略）を設け、この掻込ぺダルを踏み込み操作し掻込ぺダルスイッチＳＷ３を入りにすると、主変速レバー１７が中立位置にあっても、コントローラ３５により予め設定した所定駆動速度で刈取無段変速装置１９を駆動し、刈取搬送部８を駆動するように構成している。 In addition, when the operator is seated on the seat of the control unit 4, a take-up pedal (not shown) is provided at a position where the operator can operate with the left foot, for example. Then, even when the main transmission lever 17 is in the neutral position, the cutting continuously variable transmission 19 is driven at a predetermined driving speed preset by the controller 35 to drive the cutting conveyance unit 8.

前記構成によると、低速走行時に刈取無段変速装置１９の駆動速度に応じて走行無段変速装置１５の駆動速度を設定しながら、走行停止時に掻込ぺダルを操作すると、刈取搬送部８を所定速度で駆動し、刈取搬送部８の穀稈の引越、切断、搬送作用を円滑に行なうことができる。 According to the above configuration, when the driving pedal is operated while the traveling is stopped while the driving speed of the traveling continuously variable transmission 15 is set according to the driving speed of the cutting continuously variable transmission 19 during low speed traveling, Driven at a predetermined speed, the harvesting and transporting unit 8 can smoothly move, cut and transport the cereal.

次に、図５のフローチャートについて説明する。
刈取自動変速入切スイッチＳＷ１が入りか否かを判定し（ステップＳ５１）、切りであると、主変速レバーポジションセンサＳＥ１の検出値に応じて走行無段変速装置１５及び刈取無段変速装置１９の駆動設定をし、刈取無段変速装置１９の変速を停止設定にする（ステップＳ５２）。 Next, the flowchart of FIG. 5 will be described.
It is determined whether or not the reaping automatic shift on / off switch SW1 is turned on (step S51). If it is off, the traveling continuously variable transmission 15 and the reaping continuously variable transmission 19 according to the detected value of the main transmission lever position sensor SE1. Is set so that the shift of the cutting continuously variable transmission 19 is stopped (step S52).

また、刈取自動変速入切スイッチＳＷ１が入りであると、掻込ぺダルスイッチＳＷ３の入切を判定し（ステップＳ５３）、入りであると、「設定値／主変速レバーポジションセンサＳＥ１の検出値」に応じて刈取無段変速装置１９を駆動設定し、走行無段変速装置１５の駆動を停止設定にする（ステップＳ５４）。次いで、刈取無段変速装置１９の駆動／停止を判定し（ステップＳ５５）、駆動中であると、前記ステップＳ５４に戻り、また、停止であれば、前記ステップＳ５１に戻る。 Further, if the automatic cutting automatic shift on / off switch SW1 is turned on, it is determined whether the picking pedal switch SW3 is turned on or off (step S53), and if it is turned on, “set value / detected value of the main transmission lever position sensor SE1”. The cutting continuously variable transmission 19 is set to drive and the traveling continuously variable transmission 15 is set to stop (step S54). Next, it is determined whether or not the cutting continuously variable transmission 19 is driven / stopped (step S55). If it is being driven, the process returns to step S54, and if it is stopped, the process returns to step S51.

また、掻込ぺダルスイッチＳＷ３の入切を判定し（ステップＳ５３）、切りであると、刈取自動停止スイッチＳＷ２の入切を判定し（ステップＳ５６）、切りであると、主変速レバーポジションセンサＳＥ１の検出値に応じて走行無段変速装置１５及び刈取無段変速装置１９の変速設定をし、所定時間後に刈取無段変速装置１９の刈取駆動速度に応じた走行駆動速度になるように走行無段変速装置１５を変速設定する（ステップＳ５７）。 Further, it is determined whether the take-up pedal switch SW3 is turned on or off (step S53). If it is turned off, it is determined whether the reaping automatic stop switch SW2 is turned on or off (step S56). According to the detected value of SE1, the speed setting of the travel continuously variable transmission 15 and the cutting continuously variable transmission 19 is set, and after a predetermined time, the travel continuously speeds according to the cutting drive speed of the cutting continuously variable transmission 19 The continuously variable transmission 15 is set to shift (step S57).

また、刈取自動停止スイッチＳＷ２の入切を判定し（ステップＳ５６）、入りであると、刈取変速モータ位置検出センサＳＥ２の検出値が設定値より高いか低いかを判定し（ステップＳ５８）、検出値が設定値より低いと、前記ステップＳ５７に移行する。また、検出値が設定値より高いときには、前記ステップＳ５２に移行する。 Further, it is determined whether or not the automatic cutting switch SW2 is turned on and off (step S56). If it is turned on, it is determined whether or not the detection value of the cutting gear motor position detection sensor SE2 is higher or lower than the set value (step S58). If the value is lower than the set value, the process proceeds to step S57. When the detected value is higher than the set value, the process proceeds to step S52.

なお、掻込ぺダルは例えば操縦部４のオペレータの左足で操作できる位置に配設されていて、掻込ぺダルを踏み込み、掻込ぺダルスイッチＳＷ３をＯＮすると、走行停止時にも刈取搬送部８が駆動され、穀稈引起し装置、刈刃装置、穀稈搬送装置を駆動するように構成している。 For example, the picking pedal is arranged at a position where it can be operated with the left foot of the operator of the control unit 4, and when the pedal is depressed and the picking pedal switch SW3 is turned on, the cutting and conveying unit is also stopped when traveling is stopped. 8 is driven, and is configured to drive the grain raising device, the cutting blade device, and the grain conveying device.

次に、図６に基づきコンバインの変速制御の他の実施例について説明する。
このコンバインの変速制御装置は、刈取無段変速装置１９により刈取搬送部８の駆動速度を変速し、走行無段変速装置１５により機体の走行速度を変速し、刈取無段変速装置１９の駆動速度を刈取変速モータ３７で変速できるようにしたコンバインにおいて、車速センサＳＥ３を設け、刈取・脱穀クラッチレバーのクラッチ入り操作により、車速に応じて刈取搬送部８の刈取回転数を変速設定すべくコントローラ３５から前記刈取変速モータ３７に制御出力するにあたり、車速センサＳＥ３が停止状態から走行開始から走行増速検出をすると、これに応じて刈取変速モータ３７に刈取増速出力をし、刈取搬送部８の刈取回転数検出センサＳＥ４が目標回転数に到達あるいは目標回転数を超過した場合には、所定時間にわたり減速変速出力をしないようにして当該駆動回転数を維持し、所定時間経過後に減速変速出力をし、目標回転数になると回転数変速を停止するようにしている。 Next, another embodiment of the combine shift control will be described with reference to FIG.
In this combined shift control device, the cutting continuously variable transmission 19 shifts the driving speed of the cutting conveyance unit 8, the traveling continuously variable transmission 15 shifts the traveling speed of the machine body, and the cutting continuously variable transmission 19 drives the driving speed. In the combine that enables the gear to be shifted by the cutting speed change motor 37, the vehicle speed sensor SE3 is provided, and the controller 35 is set to change the cutting rotation speed of the cutting conveying section 8 in accordance with the vehicle speed by the clutch engagement operation of the cutting / threshing clutch lever. When the vehicle speed sensor SE3 detects travel acceleration from the start of travel from the stopped state to the control output to the cutting gear change motor 37, the cutting speed increase output is output to the cutting gear motor 37 in accordance with this, and the cutting transport unit 8 When the cutting rotational speed detection sensor SE4 reaches the target rotational speed or exceeds the target rotational speed, a deceleration shift output is output for a predetermined time. In the odd keeping the driving speed and a deceleration shift output after a predetermined time has elapsed, and to stop the rotation speed shift to become the target rotational speed.

コンバインの停止状態から走行を開始した低速走行時には、刈取回転数の変速制御のハンチング作動により、刈取搬送部８の駆動が停止したり、あるいは、駆動開始したりを繰り返す場合があり、刈取回転数が安定しない不具合が発生する。しかし、前記構成によると、停止状態からの低速走行が安定するまでは、刈取搬送部８の回転数を所定刈取回転数に維持するので、このような不具合を回避することができる。 During low-speed running where the running is started from the state where the combine is stopped, the driving of the cutting conveyance unit 8 may be stopped or started repeatedly due to the hunting operation of the cutting control of the cutting rotation speed, and the cutting rotation speed may be repeated. The problem that is not stable occurs. However, according to the above configuration, until the low-speed traveling from the stop state is stabilized, the rotational speed of the cutting and conveying unit 8 is maintained at the predetermined cutting rotational speed, and thus such inconvenience can be avoided.

また、前記低速走行時の刈取回転数の制御において、車速センサＳＥ３が停止状態から走行開始検出に基づき刈取変速モータ３７に増速変速出力をし、刈取搬送部８の回転数が目標回転数に到達あるいは目標回転数を超過する場合において、刈取変速モータ３７への減速出力中に車速センサＳＥ３及び刈取回転数検出センサＳＥ４の検出値に基づき更に刈取回転数の減速指令を出力するときには、所定時間にわたり回転数を増速した後に減速制御し、目標回転数になると回転数変速を停止するようにしている。 Further, in the control of the cutting rotational speed at the time of low speed traveling, the vehicle speed sensor SE3 outputs a speed increasing shift output to the cutting transmission motor 37 based on the detection of the start of traveling from the stopped state, and the rotational speed of the cutting transport unit 8 becomes the target rotational speed. When a speed reduction command for the cutting speed is further output based on the detection values of the vehicle speed sensor SE3 and the cutting speed detection sensor SE4 during the deceleration output to the cutting speed change motor 37 when reaching or exceeding the target speed. Deceleration control is performed after increasing the rotational speed over a range, and the rotational speed shift is stopped when the target rotational speed is reached.

前記構成によると、刈取無段変速装置１９変速用の刈取変速モータ３７を回転数減速変速終端付近で敢えて増速変速することで、ハンチング的に刈取回転数の増減を行い、低速走行時の刈取無段変速装置１９の回転を維持し、刈取搬送部８の刈取回転の停止を回避することができる。 According to the above configuration, the cutting speed change motor 37 for the cutting continuously variable transmission 19 is decelerated at a speed near the end of the rotational speed reduction shift to increase / decrease the cutting rotational speed in a hunting manner, so that the cutting speed is reduced. The rotation of the continuously variable transmission 19 can be maintained, and the stop of the cutting rotation of the cutting conveyance unit 8 can be avoided.

また、前記低速走行時の刈取変速制御において、刈取回転数が安定し、その所定時間経過後に減速変速出力をするにあたり、通常の回転数減速変速出力よりも遅い減速変速出力をし、徐々に減速するようにしている。急激な回転数の減速変速をすると、刈取搬送部８の回転が停止するような不具合が発生することがある。しかし、前記構成によると、このような不具合を防止することができる。 Further, in the cutting shift control during the low-speed traveling, when the cutting rotation speed is stable and the deceleration shift output is performed after the predetermined time has elapsed, the deceleration shift output that is slower than the normal rotation speed reduction shift output is performed and the deceleration is gradually reduced. Like to do. When the decelerating speed change is performed at an abrupt number of revolutions, a problem may occur that the rotation of the cutting and conveying unit 8 stops. However, according to the said structure, such a malfunction can be prevented.

また、前記低速走行時の刈取変速制御において、刈取搬送部８の刈取回転数が安定し、その所定時間後に刈取減速変速出力をするにあたり、刈取変速モータ位置検出センサＳＥ２の検出値が停止位置より所定値刈取回転数の高い側に至った時に、刈取減速変速出力を一時停止し、その所定時間経過後に刈取減速出力をし目標回転数に至るようにしている。 Further, in the cutting shift control at the time of the low speed traveling, the cutting rotation speed of the cutting transport unit 8 is stabilized, and the detected value of the cutting shift motor position detection sensor SE2 is detected from the stop position when the cutting deceleration output is output after a predetermined time. When the predetermined value cutting rotational speed is reached, the cutting deceleration shift output is temporarily stopped, and after the predetermined time has elapsed, the cutting deceleration output is output to reach the target rotational speed.

しかして、前記構成によると、刈取変速モータ３７の停止位置付近での刈取無段変速装置１５の回転を安定させ、刈取搬送部８の回転変速制御を安定させ精度を高めることができる。 Thus, according to the above-described configuration, the rotation of the cutting continuously variable transmission 15 near the stop position of the cutting transmission motor 37 can be stabilized, and the rotational shift control of the cutting conveyance unit 8 can be stabilized and the accuracy can be improved.

また、前記低速走行時の刈取回転変速制御において、車速センサＳＥ３が所定値以上の走行状態から所定値以下の車速を検出し、更に、主変速レバー１７の操作位置が中立位置あるいは後進変速位置を検出したときには、刈取変速モータ３７を連続的に減速側に変速して刈取無段変速装置１９の駆動を停止し、刈取搬送部８の駆動を停止するようにしている。 Further, in the cutting rotational speed change control at the time of low speed traveling, the vehicle speed sensor SE3 detects the vehicle speed below the predetermined value from the traveling state above the predetermined value, and further, the operation position of the main transmission lever 17 is set to the neutral position or the reverse speed shifting position. When detected, the cutting speed change motor 37 is continuously shifted to the deceleration side to stop the driving of the cutting continuously variable transmission 19 and stop the driving of the cutting conveying section 8.

また、前記刈取搬送部８の停止条件の成立時には、刈取無段変速装置１９の制御目標回転数を「０」に設定し、刈取回転数の追従変速制御を停止し、刈取搬送部８の駆動停止制御を確実に行なうようにしている。 Further, when the stop condition of the cutting and conveying unit 8 is satisfied, the control target rotation speed of the cutting continuously variable transmission 19 is set to “0”, the follow-up shift control of the cutting rotation number is stopped, and the cutting and conveying unit 8 is driven. Stop control is surely performed.

コンバインの走行停止時には、車速センサＳＥ３の検出遅れに同調して刈取搬送部８の駆動停止が遅れる場合がある。しかし、前記構成によると、前記不具合を回避し、走行停止時にも刈取搬送部８の駆動停止を迅速に追従させることができる。 When the combine travel is stopped, the drive stop of the cutting and conveying unit 8 may be delayed in synchronization with the detection delay of the vehicle speed sensor SE3. However, according to the said structure, the said malfunction can be avoided and the drive stop of the cutting conveyance part 8 can be tracked rapidly also at the time of driving | running | working stop.

また、前記低速走行時の刈取回転変速制御において、刈取自動変速入切スイッチＳＷ１を入りに指定した場合には、掻込ぺダルの掻込操作を解除し、掻込ぺダルスイッチＳＷ３がＯＦＦ状態になっても、刈取搬送部８の駆動が一旦停止するまでは、クローラ走行装置３，３の停止を継続するようにしている。 Further, in the cutting rotational speed change control during the low speed traveling, when the cutting automatic shift on / off switch SW1 is designated to be turned on, the scraping operation of the scraping pedal is canceled and the scraping pedal switch SW3 is in the OFF state. Even if it becomes, until the drive of the cutting conveyance part 8 stops once, the stop of the crawler traveling apparatuses 3 and 3 is continued.

前記構成によると、走行停止時における掻込ぺダルの操作を楽にしながら、刈取搬送部８の駆動継続を容易に行なうことができる。
次に、図６のフローチャートについて説明する。 According to the above-described configuration, it is possible to easily continue the driving of the cutting and conveying unit 8 while facilitating the operation of the scraping pedal when traveling is stopped.
Next, the flowchart of FIG. 6 will be described.

刈取回転数制御が開始されると、車速センサＳＥ３の検出値を読み込み（ステップＳ１）、停車検出か否かを判定し（ステップＳ２）、Ｙｅｓであると、刈取初期回転変速制御を許可する（ステップＳ３）。Ｎｏであると、刈取初期回転変速制御が許可されているか否かを判定する（ステップＳ４）。Ｎｏであると、刈取通常回転変速制御を実行し（ステップＳ６）、刈取初期回転変速制御を解除する（ステップＳ７）。また、Ｙｅｓであると、「車速検出値＞所定値」か否かを判定し（ステップＳ５）、Ｎｏであると、前記ステップＳ６〜７に移行する。また、Ｙｅｓであると、車速検出値から刈取回転目標値を算出し（ステップＳ８）、刈取回転数検出センサＳＥ４の検出値を読み込む（ステップＳ９）。 When the cutting speed control is started, the detection value of the vehicle speed sensor SE3 is read (step S1), it is determined whether or not a stop is detected (step S2), and if it is Yes, the cutting initial rotation speed change control is permitted ( Step S3). If it is No, it is determined whether or not the initial cutting rotational speed change control is permitted (step S4). If it is No, the cutting normal rotation speed change control is executed (step S6), and the initial cutting speed change control is canceled (step S7). If Yes, it is determined whether or not “vehicle speed detection value> predetermined value” (step S5). If No, the process proceeds to steps S6 to S7. If yes, the cutting rotation target value is calculated from the vehicle speed detection value (step S8), and the detection value of the cutting rotation speed detection sensor SE4 is read (step S9).

次いで、「刈取目標回転数＜検出刈取回転数」か否かを判定し（ステップＳ１０）、Ｙｅｓであると、刈取回転増速出力をセットし（ステップＳ１１）、刈取減速出力停止時間タイマをセットする（ステップＳ１２）。また、Ｎｏであると、「刈取目標回転数＞刈取検出回転数」か否かを判定し（ステップＳ１３）、Ｎｏであると、ステップＳ１に戻る。 Next, it is determined whether or not “reaping target rotation speed <detected cutting speed” (step S10). If yes, the cutting rotation acceleration output is set (step S11), and the cutting deceleration output stop time timer is set. (Step S12). Further, if it is No, it is determined whether or not “reaping target rotation speed> cutting detection rotation speed” (step S13), and if No, the process returns to step S1.

また、Ｙｅｓであると、各監視タイマのカウントを開始し（ステップＳ１４）、刈取減速出力停止タイマがアップしたか否かを判定し（ステップＳ１５）、Ｎｏであると、減速出力（遅い）監視タイマをセットし（ステップＳ１６）、ステップＳ１に戻る。 If Yes, each monitoring timer starts counting (step S14), it is determined whether the trimming deceleration output stop timer is up (step S15). If No, deceleration output (slow) monitoring is performed. A timer is set (step S16), and the process returns to step S1.

また、Ｙｅｓであると、減速出力（遅い）監視タイマがアップしたか否かを判定し（ステップＳ１７）、Ｙｅｓであると、刈取初期回転変速制御を解除し（ステップＳ１８）、また、Ｎｏであると、「刈取変速モータ３７の変速位置≦低速限界」か否かを判定し（ステップＳ１９）、Ｎｏであると、減速出力停止時間をセットし（ステップＳ２０）、刈取減速出力（遅い）をセットする（ステップＳ２１）。 If Yes, it is determined whether or not the deceleration output (slow) monitoring timer is up (step S17), and if Yes, the cutting initial rotation speed change control is canceled (step S18). If there is, it is determined whether or not “the shifting position of the cutting gear motor 37 ≦ the low speed limit” (step S19). If No, the deceleration output stop time is set (step S20), and the cutting deceleration output (slow) is output. Set (step S21).

また、Ｙｅｓであると、刈取減速出力停止タイマがアップしたか否かを判定し（ステップＳ２２）、Ｎｏであると、刈取強制増速出力タイマをセットし（ステップＳ２３）、ステップＳ１に戻る。また、Ｙｅｓであると、刈取強制増速出力タイマがアップしたか否かを判定し（ステップＳ２４）、ＹｅｓであるとステップＳ１に戻り、Ｎｏであると、刈取増速出力をセットし（ステップＳ２５）、ステップＳ１に戻る。 If Yes, it is determined whether the cutting deceleration output stop timer is up (step S22). If No, the cutting forced acceleration output timer is set (step S23), and the process returns to step S1. Further, if Yes, it is determined whether or not the forced cutting acceleration output timer is up (Step S24). If Yes, the process returns to Step S1, and if No, the cutting acceleration output is set (Step S24). S25), the process returns to step S1.

次に、図７のフローチャートについて説明する。
刈取回転数制御が開始されると、車速センサＳＥ３の検出値を読み込み（ステップＳ３１）、刈取搬送部８の上昇時あるいは車体後進走行時において刈取搬送部８の駆動を自動停止する刈取自動停止制御が許可されているか否かを判定する（ステップＳ３２）。Ｎｏであると、車速センサＳＥ３が走行検出をしているか否かを判定し（ステップＳ３３）、Ｙｅｓであると、刈取搬送部８の上昇時刈取自動停止制御を許可し（ステップＳ３４）、刈取搬送部８を所定回転数で回転する刈取回転通常制御を実行する（ステップＳ３７）。 Next, the flowchart of FIG. 7 will be described.
When the cutting speed control is started, the detection value of the vehicle speed sensor SE3 is read (step S31), and the automatic cutting stop control for automatically stopping the driving of the cutting conveyance unit 8 when the cutting conveyance unit 8 is raised or the vehicle is traveling backward. Whether or not is permitted is determined (step S32). If it is No, it is determined whether or not the vehicle speed sensor SE3 is detecting travel (step S33), and if it is Yes, the cutting cutting automatic stop control of the cutting conveyance unit 8 is permitted (step S34). The normal cutting rotation control for rotating the transport unit 8 at a predetermined rotational speed is executed (step S37).

また、刈取自動停止制御が許可されているか否かを判定し（ステップＳ３２）、Ｙｅｓであると、「車速検出値＞所定値」か否かを判定し（ステップＳ３５）、Ｙｅｓであると、刈取回転通常制御を実行する（ステップＳ３７）。また、Ｎｏであると、主変速レバー１７が前進操作か否かを判定し（ステップＳ３６）、Ｙｅｓであると、刈取回転通常制御を実行する（ステップＳ３７）。 Further, it is determined whether or not automatic cutting stop control is permitted (step S32), and if Yes, it is determined whether or not “vehicle speed detection value> predetermined value” (step S35), and if Yes, The normal cutting rotation control is executed (step S37). If No, it is determined whether or not the main transmission lever 17 is a forward operation (step S36). If Yes, the normal cutting rotation control is executed (step S37).

また、Ｎｏであると、「刈取変速モータ３７の変速位置≦停止位置」か否かを判定し（ステップＳ３８）、Ｙｅｓであると、刈取自動停止制御を解除し（ステップＳ３９）、また、Ｎｏであると、刈取減速出力（速い）をセットし（ステップＳ４０）、ステップＳ１に戻る。 If NO, it is determined whether or not “the shift position of the cutting gear motor 37 ≦ the stopping position” (step S38). If YES, the cutting automatic stop control is canceled (step S39). If it is, the cutting deceleration output (fast) is set (step S40), and the process returns to step S1.

２走行装置
８刈取搬送部
１５走行無段変速装置
１７主変速レバー
１９刈取無段変速装置
３５コントローラ
３７刈取変速モータ
ＳＷ１刈取自動変速入切スイッチ
ＳＷ２刈取自動停止スイッチ
ＳＷ３掻込操作スイッチ
ＳＥ１主変速レバーポジションセンサ
ＳＥ２刈取変速モータ位置検出センサ 2 Traveling device 8 Mowing transport unit 15 Traveling continuously variable transmission 17 Main transmission lever 19 Mowing continuously variable transmission 35 Controller 37 Mowing transmission motor SW1 Mowing automatic shift on / off switch SW2 Mowing automatic stop switch SW3 Take-in operation switch SE1 Main transmission lever Position sensor SE2 Mowing shift motor position detection sensor

Claims

A travel device (2) a travel continuously variable transmission (15) for speed change drive, a main transmission lever (17) for manually shifting the travel continuously variable transmission (15), and a main transmission lever (17) A main shift lever position sensor (SE1) for detecting a shift operation position, a cutting and conveying section (8) a cutting continuously variable transmission (19) for shifting driving, and a cutting continuously variable transmission (19) cutting for shifting operation In the combine provided with a transmission motor (37) and a cutting transmission motor position detection sensor (SE2) for detecting a shift operation position of the cutting transmission motor (37), the traveling continuously variable transmission (15) and the cutting continuously variable gear There is provided a cutting automatic shift on / off switch (SW1) for designating on / off of the running cut-related shift control for controlling the shift with the transmission (19), and the cut automatic shift on / off switch (SW1) is designated to be turned off If you did before The traveling continuously variable transmission (15) is driven to shift according to the detection value of the main shift lever position sensor (SE1), the shifting drive of the cutting continuously variable transmission (19) is stopped, and the cutting automatic shift on / off is performed. When the switch (SW1) is turned on and designated, the traveling continuously variable transmission (15) and the cutting continuously variable transmission (19) are driven to change speed according to the detected value of the main shift lever position sensor (SE1). When the detected value of the cutting speed change motor position detection sensor (SE2) is lower than the set value after a predetermined time, the driving continuously variable speed is set to the driving speed corresponding to the cutting driving speed of the cutting continuously variable transmission (19). The transmission (15) is decelerated, and when the detected value of the cutting shift motor position detection sensor (SE2) is higher than the set value after a predetermined time, it corresponds to the cutting drive speed of the cutting continuously variable transmission (19). Combine shift control device characterized by comprising a controller (35) to stop the shifting of lines continuously variable transmission (15).

In the invention of claim 1, when a cutting automatic stop switch (SW2) for turning on and off a control for automatically stopping the cutting drive when the cutting conveying section (8) is raised is provided, and the automatic cutting stop switch (SW2) is turned on When the cutting drive is automatically stopped when the cutting conveyance unit (8) is raised and the detection value of the cutting shift motor position detection sensor (SE2) is higher than a set value, the cutting automatic shift on / off switch (SW1) performs the same shift control as in the cut state, and when the detected value of the cutting gear motor position detection sensor (SE2) is lower than the set value, the cutting automatic shift on / off switch (SW1) is turned on. A combine shift control device comprising a controller (35) for performing similar shift control.

According to the first aspect of the present invention, there is provided a scraping operation switch (SW3) that can be turned on and off by a scraping operation tool, and when the scraping operation switch (SW3) is in the on state, the main transmission lever ( 17) A controller (35) for driving the cutting continuously variable transmission (19) at a predetermined speed set in advance and stopping the driving continuously variable transmission (15) even when the neutral position is set. A shift control device for a combine.