JP2010148435A - Combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem that, in a combine harvester, even when a relevant operator detects an abnormality of the turning mechanism by a sensor, the operator may make a work without recognizing the abnormality. <P>SOLUTION: The combine harvester has a steplessly speed-variable traveling device 3 turning by causing the rotation difference between the left and right axles 51; means 76 functioning to detect the operating position of the steering lever 75 of the traveling gear 3; and means 78 functioning to detect the respective revolutions of the left and right axles 51. In the combine harvester, means 80 for detecting the turning control abnormalities for a controller 79 works as follows: comparing the rotation difference between the left and right axles 51 detected with the tilt-operating angle of the steering lever 75, an abnormality of the turning control is detected by the means 80, and when the means 80 detects and determines as abnormal, the abnormality is informed by an informative means 81. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、コンバインに係るものである。   The present invention relates to a combine.

従来、走行装置は、旋回機構を切り替えて種々の旋回モードに応じたミッションケースの左右の車軸の回転の回転差に大小変化させて、所望の旋回半径で旋回するように構成し、ミッションケースには複数のセンサを設け、該センサにより旋回機構の異常を検出すると、現在の旋回モードから実行可能な旋回モードに自動的に切り替える構成は、公知である（特許文献１参照）。
特開平０８−８０１１９号公報 Conventionally, the traveling device is configured to change the rotation difference between the left and right axles of the mission case according to various turning modes by changing the turning mechanism and turn at a desired turning radius. A configuration is known in which a plurality of sensors are provided, and when the abnormality of the turning mechanism is detected by the sensors, the current turning mode is automatically switched to an executable turning mode (see Patent Document 1).
Japanese Patent Laid-Open No. 08-80119

前記公知例は、単に、センサにより旋回機構の異常を検出すると、現在の旋回モードから実行可能な旋回モードに自動的に切り替えるので、作業者は旋回機構の異常を認識しないで走行して、ミッションケースの故障被害が大きくなるという課題がある。
本願は、簡単な構成で操作系の異常を検出して、故障被害を最小限にするように工夫したものである。 In the known example, when the abnormality of the turning mechanism is simply detected by the sensor, the turning mode is automatically switched from the current turning mode to the executable turning mode. There is a problem that the failure damage of the case becomes large.
The present application has been devised to detect malfunctions in the operation system with a simple configuration and minimize damage.

本発明では、走行用静油圧式無段変速装置１２により走行速度を無段階に変速可能な走行装置３の前方に刈取部４を設け、走行装置３の上方には脱穀装置２を設け、前記走行装置３は、操向レバー７５の操作によりミッションケース１８の左右の車軸５１の回転に回転差を発生させて旋回するように構成し、前記操向レバー７５の操作位置を検出する操向レバー位置検出手段７６を設け、前記左右の車軸５１の夫々の回転数を検出する回転検出手段７８を設け、該回転検出手段７８により検出した左右の車軸５１の回転数の回転差と、前記操向レバー７５の傾倒操作角度とを対比して、制御コントローラ７９の旋回制御異常検出手段８０で旋回制御の異常の有無を検出する構成とし、該旋回制御異常検出手段８０で異常と判定されると、その旨を報知手段８１により報知する構成としたことを特徴とするコンバインとしたものであり、直進あるいは旋回走行中の操向レバー７５の操作位置を操向レバー位置検出手段７６で検出し、左右の車軸５１の夫々の回転数を回転検出手段７８で検出し、操向レバー７５の傾倒操作角度と回転検出手段７８により検出した左右の車軸５１の回転数の回転差とを対比して、制御コントローラ７９の旋回制御異常検出手段８０で旋回制御の異常の有無を検出し、旋回制御異常検出手段８０が異常と判定すると、その旨を報知手段８１により報知する。
本発明では、前記操向レバー７５が左右何れ一方に所定角以上傾倒操作していることを操向レバー位置検出手段７６で検出し、左右の車軸５１に操向レバー７５の操作角に応じた回転差が生じていないことを回転検出手段７８で検出した場合に、前記旋回制御異常検出手段８０で異常と判定し、該異常を前記報知手段８１により報知するように構成したことを特徴とするコンバインとしたものであり、操向レバー７５で左右何れ一方への所定角以上傾倒操作を操向レバー位置検出手段７６が検出し、左右の車軸５１が操向レバー７５の操作角に応じた回転差が生じていないことを回転検出手段７８で検出したとき、旋回制御異常検出手段８０は異常と判定し、この異常を報知手段８１により報知する。
本発明では、前記操向レバー７５が左右何れにも傾倒操作されていない中立位置であると操向レバー位置検出手段７６が検出しているにも拘わらず、左右の車軸５１に所定以上の回転差が生じた場合に、旋回制御異常検出手段８０で異常と判定し、該異常を報知手段８１により報知するように構成したことを特徴とするコンバインとしたものであり、操向レバー７５が左右何れにも傾倒操作されていない中立位置であると操向レバー位置検出手段７６で検出しているにも拘わらず、左右の車軸５１に所定以上の回転差が生じていることを回転検出手段７８が検出したときは、旋回制御異常検出手段８０で異常と判定し、この異常を報知手段８１により報知する。
本発明では、前記走行用静油圧式無段変速装置１２を操作する主変速レバー１３の操作位置を検出する主変速位置検出手段８２を設け、前記操向レバー７５の左右何れ一方に所定角以上傾倒操作しているときの左右の車軸５１の所定以上の回転差が検出できないとき、または、操向レバー７５が左右何れにも傾倒操作されていない中立位置であると操向レバー位置検出手段７６が検出しているにも拘わらず、左右の車軸５１に所定以上の回転差が生じることにより、旋回制御異常検出手段８０が走行異常と判定した状態で、前記主変速位置検出手段８２で主変速レバー１３の操作位置が前進または後進でかつ所定以上の走行速度となる位置にあることを検出すると、エンジン２２を自動的に停止させるように構成したことを特徴とするコンバインとしたものであり、操向レバー位置検出手段７６と回転検出手段７８の検出値の不一致により旋回制御異常検出手段８０で異常と判定した状態で、主変速位置検出手段８２で主変速レバー１３の操作位置が前進または後進でかつ所定以上の走行速度となる操作位置にあることを検出すると、エンジン２２を自動停止させる。
本発明では、前記刈取部４および前記脱穀装置２の駆動の入切を検出する刈脱レバー位置検出手段８６と、前記刈取部４に搬送中の穀稈の有無を検出する穀稈有無検知手段８７を設け、前記刈脱レバー位置検出手段８６が刈取部４および脱穀装置２の駆動の入りを検出し、且つ、穀稈有無検知手段８７が搬送中の穀稈の有りを検出した場合には、前記旋回制御異常検出手段８０が走行異常と判定した状態で、主変速位置検出手段８２が主変速レバー１３の操作位置が前進または後進でかつ所定以上の走行速度となる位置にあることを検出しても、エンジン２２を停止させず、作業を続行しうる構成としたことを特徴とするコンバインとしたものであり、操向レバー位置検出手段７６と回転検出手段７８の検出値の不一致により旋回制御異常検出手段８０で異常と判定した状態で、主変速位置検出手段８２で主変速レバー１３の操作位置が前進または後進でかつ所定以上の走行速度となる操作位置にあることを検出しても、刈脱レバー位置検出手段８６と穀稈有無検知手段８７の両者がオンのときには、エンジン２２の自動停止はさせず、作業を続行し、点検・修理に最適な場所まで移動し、エンジン２２を停止させて、点検・修理を行う。
本発明では、前記旋回制御異常検出手段８０で走行異常と判定し、前記刈脱レバー位置検出手段８６が刈取部４および脱穀装置２の駆動の入りを検出し、且つ、穀稈有無検知手段８７が搬送中の穀稈の有りを検出した場合には、走行速度の減速操作を促す表示をモニタ８８に表示するように構成したことを特徴とするコンバインとしたものであり、旋回制御異常検出手段８０で異常と判定し、刈脱レバー位置検出手段８６と穀稈有無検知手段８７の両者がオンのときには、モニタ８８に走行速度の減速操作を促す表示を表示する。 In the present invention, the cutting unit 4 is provided in front of the traveling device 3 capable of continuously changing the traveling speed by the hydrostatic continuously variable transmission device 12 for traveling, the threshing device 2 is disposed above the traveling device 3, The traveling device 3 is configured to turn by generating a rotation difference in the rotation of the left and right axles 51 of the mission case 18 by operating the steering lever 75, and to detect the operating position of the steering lever 75. Position detection means 76 is provided, rotation detection means 78 for detecting the respective rotation speeds of the left and right axles 51 is provided, the rotation difference between the rotation speeds of the left and right axles 51 detected by the rotation detection means 78, and the steering In contrast to the tilting operation angle of the lever 75, the turning control abnormality detecting means 80 of the controller 79 detects the presence or absence of turning control abnormality. When the turning control abnormality detecting means 80 determines that there is an abnormality, That Is combined with the notification means 81, and the operating position of the steering lever 75 during straight traveling or turning is detected by the steering lever position detecting means 76, and the left and right axles are detected. 51 is detected by the rotation detecting means 78, and the tilting operation angle of the steering lever 75 is compared with the rotation difference between the rotation speeds of the left and right axles 51 detected by the rotation detecting means 78, so that the controller 79 When the turning control abnormality detecting means 80 detects the presence or absence of turning control abnormality and the turning control abnormality detecting means 80 determines that there is an abnormality, the notifying means 81 notifies that fact.
In the present invention, the steering lever position detecting means 76 detects that the steering lever 75 is tilted to the left or right by a predetermined angle or more, and the left and right axles 51 correspond to the operating angle of the steering lever 75. When the rotation detecting means 78 detects that no rotation difference has occurred, the turning control abnormality detecting means 80 determines that there is an abnormality, and the notifying means 81 notifies the abnormality. The steering lever 75 detects that the steering lever 75 is tilted more than a predetermined angle to the left or right by the steering lever 75, and the left and right axles 51 rotate according to the operating angle of the steering lever 75. When the rotation detecting means 78 detects that no difference has occurred, the turning control abnormality detecting means 80 determines that there is an abnormality, and notifies the abnormality by the notifying means 81.
In the present invention, the steering lever position detection means 76 detects that the steering lever 75 is in a neutral position where the steering lever 75 is not tilted to the left or right. When there is a difference, the turn control abnormality detecting means 80 determines that the abnormality is abnormal, and the abnormality is notified by the notifying means 81. Although the steering lever position detecting means 76 detects that the neutral position is not tilted in any way, the rotation detecting means 78 indicates that a rotational difference of more than a predetermined value has occurred between the left and right axles 51. Is detected by the turning control abnormality detecting means 80, and this abnormality is notified by the notifying means 81.
In the present invention, the main shift position detecting means 82 for detecting the operation position of the main shift lever 13 for operating the hydrostatic continuously variable transmission 12 for traveling is provided, and either one of the left and right sides of the steering lever 75 is a predetermined angle or more. The steering lever position detection means 76 when the rotation difference of a predetermined amount or more between the left and right axles 51 during the tilting operation cannot be detected, or when the steering lever 75 is in the neutral position where the tilting operation is not performed on either the left or right. Is detected by the main shift position detecting means 82 in a state in which the turning control abnormality detecting means 80 has determined that the running is abnormal. The converter is configured to automatically stop the engine 22 when it is detected that the operation position of the lever 13 is forward or reverse and at a position where the traveling speed is higher than a predetermined speed. In the state where the turning control abnormality detecting means 80 determines that there is an abnormality due to a mismatch between the detection values of the steering lever position detecting means 76 and the rotation detecting means 78, the main transmission lever 13 is detected by the main transmission position detecting means 82. When it is detected that the operation position is forward or backward and is at an operation position at which the traveling speed is equal to or higher than a predetermined speed, the engine 22 is automatically stopped.
In the present invention, a cutting / levering lever position detecting means 86 for detecting whether the cutting unit 4 and the threshing device 2 are turned on and off, and a culm presence / absence detecting unit for detecting the presence / absence of a culm being conveyed to the cutting unit 4. 87, when the cutting / levering lever position detecting means 86 detects the onset of the cutting unit 4 and the threshing device 2, and the culm presence / absence detecting means 87 detects the presence of the culm being conveyed. In the state where the turning control abnormality detecting means 80 determines that the running is abnormal, the main shift position detecting means 82 detects that the operation position of the main shift lever 13 is forward or backward and at a position where the running speed is higher than a predetermined value. However, the combine is characterized in that the operation can be continued without stopping the engine 22, and the turn is caused by the mismatch between the detection values of the steering lever position detection means 76 and the rotation detection means 78. Control error detection Even if the main shift position detecting means 82 detects that the operation position of the main shift lever 13 is at the operation position that moves forward or backward and at a traveling speed higher than a predetermined speed, the cutting operation is performed. When both the lever position detection means 86 and the culm presence / absence detection means 87 are on, the engine 22 is not automatically stopped, the operation is continued, the engine 22 is moved to the optimal location for inspection and repair, and the engine 22 is stopped. Inspect and repair.
In the present invention, the turning control abnormality detecting means 80 determines that the running is abnormal, the cutting / levering lever position detecting means 86 detects the driving of the cutting unit 4 and the threshing device 2, and the culm presence / absence detecting means 87. Is configured to display on the monitor 88 a display prompting the user to decelerate the traveling speed when detecting the presence of the cereal during transportation, and the turning control abnormality detecting means When it is determined that there is an abnormality at 80 and both the cutting / levering lever position detection means 86 and the culm presence / absence detection means 87 are on, a display for prompting a deceleration operation of the traveling speed is displayed on the monitor 88.

請求項１の発明では、操向レバー７５と操向レバー位置検出手段７６による簡単な構成で、操作系の異常を検出でき、旋回制御異常検出手段８０が走行異常と判定すると、報知手段８１により報知するので、故障被害を最小限にできる。
請求項２の発明では、上記請求項１記載の発明の効果を奏する上に、旋回走行中の走行異常を報知手段８１が報知するので、故障被害を最小限にできる。
請求項３の発明では、上記請求項１または請求項２記載の発明の効果を奏する上に、直進走行中の走行異常を報知手段８１が報知するので、故障被害を最小限にできる。
請求項４の発明では、上記請求項１または請求項２または請求項３記載の発明の効果を奏する上に、走行異常の状況を報知し、かつ、所定以上の走行速度のときエンジン２２を停止させて、機体を停止させることができる。
請求項５の発明では、上記請求項４記載の発明の効果を奏する上に、作業中の場合は、エンジン２２を停止させず、作業の継続を可能にし、作業性を低下させない。
請求項６の発明では、上記請求項５記載の発明の効果を奏する上に、モニタ８８により走行速度の減速操作を促すことができる。 In the first aspect of the invention, the operation system abnormality can be detected with a simple configuration of the steering lever 75 and the steering lever position detection means 76. When the turning control abnormality detection means 80 determines that the vehicle is abnormal, the notification means 81 Since the notification is made, the damage caused by the failure can be minimized.
In the invention of claim 2, in addition to the effect of the invention of claim 1, the notifying means 81 notifies the running abnormality during the turning, so that the failure damage can be minimized.
In the invention of claim 3, in addition to the effects of the invention of claim 1 or claim 2, the notifying means 81 notifies of the running abnormality during the straight running, so that damage to the failure can be minimized.
According to the invention of claim 4, in addition to the effects of the invention of claim 1 or claim 2 or claim 3, the abnormality of the running is notified and the engine 22 is stopped when the running speed is higher than a predetermined value. The aircraft can be stopped.
In the invention of claim 5, in addition to the effect of the invention of claim 4, the engine 22 is not stopped when the work is in progress, the work can be continued, and workability is not lowered.
In the invention of claim 6, in addition to the effect of the invention of claim 5, the monitor 88 can prompt the user to decelerate the traveling speed.

本発明の実施例を図面により説明すると、１は機体フレ−ム、２は機体フレ−ム１の上方位置に設けた脱穀装置、３は機体フレ−ム１の下方位置に設けた走行装置、４は機体フレ−ム１の前方に設けた刈取部、５は前記脱穀装置２の側部に設けた該脱穀装置２より取出された穀物を一時貯留するグレンタンク、６は操縦部、７はグレンタンク５内の穀物を排出する排出オーガーである。
前記刈取部４の一例を示すと、分草体８、引起装置（図示省略）、刈刃９および搬送装置を有して構成する。
１０は搬送装置により搬送され穀稈を脱穀装置２の脱穀室（図示省略）に穀稈を供給する穀稈供給搬送装置、１１は穀稈供給搬送装置１０の始端側に設けたシンクロ用前側供給搬送装置である。
前記穀稈供給搬送装置１０は、前記刈取部４で刈り取られた穀稈を脱穀装置２の脱穀室（図示省略）の穀稈供給口（図示省略）から供給し、脱穀されて脱穀室の穀稈排出口（図示省略）より排出するまで搬送するものであるが、刈取部４で刈り取った穀稈を穀稈供給搬送装置１０まで搬送する構成は任意である。 An embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 denotes an airframe frame, 2 denotes a threshing device provided at an upper position of the airframe frame 1, 3 denotes a traveling device provided at a lower position of the airframe frame 1, 4 is a cutting part provided in front of the fuselage frame 1, 5 is a glen tank for temporarily storing grains taken out from the threshing device 2 provided on the side of the threshing device 2, 6 is a control unit, and 7 is It is a discharge auger that discharges grain in the Glen tank 5.
An example of the cutting unit 4 includes a weeding body 8, a pulling device (not shown), a cutting blade 9, and a conveying device.
Reference numeral 10 denotes a cereal supply / conveyance device that supplies the cereal to the threshing chamber (not shown) of the threshing device 2, and 11 is a front supply for synchro provided on the starting end side of the cereal supply / conveyance device 10 It is a transport device.
The cereal supply / conveyance device 10 supplies the cereals harvested by the reaping unit 4 from the threshing supply port (not shown) of the threshing chamber (not shown) of the threshing device 2, and is threshed and cerealed in the threshing room. Although it conveys until it discharges | emits from a straw discharge port (illustration omitted), the structure which conveys the grain straw harvested by the cutting part 4 to the grain straw supply conveyance apparatus 10 is arbitrary.

しかして、走行装置３は走行用静油圧式無段変速装置１２により走行速度変更可能に構成し、刈取部４へ伝達する回転も走行装置３の走行速度に同調して変速するようにする。
即ち、走行用静油圧式無段変速装置１２は、主変速レバー１３の傾倒操作量に応じて増減速し、例えば、図２のように、走行速度に対して所定割合で伝動回転を増速する標準作業ラインＡと、該標準作業ラインＡよりも短時間で増速するようにした倒伏作業ラインＢにより変速するように構成する。
刈取搬送専用の刈取搬送用静油圧式無段変速装置２１による走行速度への同調は、脱穀装置２と穀稈供給搬送装置１０とをエンジン２２からの一定駆動回転で駆動して脱穀作業を安定させつつ、穀稈供給搬送装置１０への引継を円滑・確実にする。 Thus, the traveling device 3 is configured such that the traveling speed can be changed by the traveling hydrostatic continuously variable transmission 12, and the rotation transmitted to the cutting unit 4 is also shifted in synchronization with the traveling speed of the traveling device 3.
That is, the traveling hydrostatic continuously variable transmission 12 increases / decreases in accordance with the amount of tilting operation of the main shift lever 13, and for example, as shown in FIG. The standard work line A and the overturn work line B that is accelerated in a shorter time than the standard work line A are configured to shift.
Synchronization with the running speed by the chopping and conveying hydrostatic continuously variable transmission 21 dedicated to chopping and conveying is achieved by driving the threshing device 2 and the cereal supply and conveying device 10 with constant driving rotation from the engine 22 to stabilize the threshing operation. The transfer to the cereal supply and transport device 10 is made smooth and reliable.

刈取部４およびシンクロ用前側供給搬送装置１１への伝達回転は、刈取搬送用静油圧式無段変速装置２１により変速するので、通常は刈取搬送用静油圧式無段変速装置２１が刈取部４を走行速度の増減速に合わせて同調させて変速するが、所定条件のときは、刈取搬送用静油圧式無段変速装置２１単独で刈取部４および／またはシンクロ用前側供給搬送装置１１を駆動するように構成する。
そのため、機体停止状態から所定走行速度の間でも、刈取搬送用静油圧式無段変速装置２１により刈取部４およびシンクロ用前側供給搬送装置１１を十分な回転数で駆動させることができ、機体走行開始直後から安定して刈取部４および脱穀装置２を駆動させられ、刈取作業および脱穀作業を安定・確実に行える。
また、走行用静油圧式無段変速装置１２から走行装置３への回転を停止させたとき、単独の刈取搬送用静油圧式無段変速装置２１でシンクロ用前側供給搬送装置１１を駆動すると、機体走行停止状態でシンクロ用前側供給搬送装置１１を駆動し、シンクロ用前側供給搬送装置１１および穀稈供給搬送装置１０へ手刈り穀稈を供給でき、刈取作業および脱穀作業の作業性および操作性を向上させられる。 Since the transmission rotation to the reaping part 4 and the front-side supply / conveyance device 11 for synchro is shifted by the hydrostatic continuously variable transmission 21 for reaping and conveying, the hydrostatic continuously variable transmission 21 for reaping and conveying is normally used by the reaping part 4. Are synchronized with the increase / decrease of the traveling speed, but when the predetermined conditions are met, the reaping part 4 and / or the front supply / conveyor 11 for synchronization are driven by the reaping / feeding hydrostatic continuously variable transmission 21 alone. To be configured.
Therefore, even during the predetermined travel speed from the state where the airframe is stopped, the mowing and transporting hydrostatic continuously variable transmission 21 can drive the mowing unit 4 and the front supply / conveyor 11 for synchronization at a sufficient number of revolutions. The mowing unit 4 and the threshing device 2 are driven stably immediately after the start, and the mowing work and the threshing work can be performed stably and reliably.
Further, when the rotation from the hydrostatic continuously variable transmission 12 for traveling to the traveling device 3 is stopped, the front supply / conveyor 11 for synchronization is driven by the single hydrostatic continuously variable transmission 21 for harvesting and conveying, The front-side supply / conveyance device 11 for synchronization is driven in a state where the machine body is stopped, and the hand-harvested cereal can be supplied to the front-side supply / conveyance device 11 for synchronization and the cereal supply / conveyance device 10. Can be improved.

前記走行用静油圧式無段変速装置１２と刈取搬送用静油圧式無段変速装置２１は、主変速レバー１３の傾倒角度に応じて、同期させて作動させるが、同期および作動させるための構成は任意であり、例えば、主変速レバーと走行用静油圧式無段変速装置１２および刈取搬送用静油圧式無段変速装置２１をリンク等の機械的構成により連結したり、主変速レバーの傾倒角度を電気的に検出し、この信号により走行用静油圧式無段変速装置１２と刈取搬送用静油圧式無段変速装置２１を電気的に制御するようにしてもよい。   The hydrostatic continuously variable transmission 12 for traveling and the hydrostatic continuously variable transmission 21 for harvesting and conveying are operated in synchronism according to the tilt angle of the main transmission lever 13, but are configured to synchronize and operate. Is optional, for example, the main transmission lever is connected to the traveling hydrostatic continuously variable transmission 12 and the chopping and conveying hydrostatic continuously variable transmission 21 by a mechanical structure such as a link, or the main transmission lever is tilted. The angle may be detected electrically, and the hydrostatic continuously variable transmission 12 for traveling and the hydrostatic continuously variable transmission 21 for harvesting conveyance may be electrically controlled by this signal.

エンジン２２から走行用静油圧式無段変速装置１２および刈取搬送用静油圧式無段変速装置２１への回転伝達機構の構成は任意であるが、図３により一例を示すと、２５Ａは走行用出力プーリー、２５Ｂは刈取脱穀用出力プーリー，２６は走行用静油圧式無段変速装置１２の入力プーリー、２８は刈取脱穀用出力プーリー２５Ｂの回転が伝達される中間プーリー，２９は中間軸、３０は中間歯車、３１は中間伝動軸、３２は一対の脱穀用傘歯車、３３は脱穀伝動軸、３３Ａは脱穀用中間プーリー、３４は扱胴、３５は処理胴、３６は刈取用中間歯車、３７は刈取搬送用静油圧式無段変速装置２１の刈取ＨＳＴ入力軸、３８は刈取搬送用静油圧式無段変速装置２１の刈取ＨＳＴ出力軸、３９は刈取用中間出力軸、４０は搬送シンクロ用出力軸、４１は穀稈供給搬送中間出力軸、４１Ａは供給搬送用プーリー、４２は唐箕、４３は穀稈供給搬送装置１０の駆動歯車、４４は刈取脱穀クラッチ、４５は刈取用中間出力軸３９に設けた刈取中間出力プーリー，４６は刈取中間入力プーリー、４７は刈取中間出力プーリー４５と刈取中間入力プーリー４６に掛け回したベルト、５０は刈取用中間歯車３６および刈取用中間出力軸３９等を設けたギヤケースであり、ギヤケース５０の操縦部６側に刈取搬送用静油圧式無段変速装置２１を設ける。そのため、機体重量バランスやギヤケース５０の取付バランスを良好にする。   Although the configuration of the rotation transmission mechanism from the engine 22 to the hydrostatic continuously variable transmission 12 for traveling and the hydrostatic continuously variable transmission 21 for harvesting and conveying is arbitrary, FIG. 3 shows an example of 25A for traveling. An output pulley, 25B is an output pulley for cutting and threshing, 26 is an input pulley of the hydrostatic continuously variable transmission 12 for traveling, 28 is an intermediate pulley to which rotation of the output pulley 25B for cutting and threshing is transmitted, 29 is an intermediate shaft, 30 Is an intermediate gear, 31 is an intermediate transmission shaft, 32 is a pair of threshing bevel gears, 33 is a threshing transmission shaft, 33A is an intermediate pulley for threshing, 34 is a handling cylinder, 35 is a processing cylinder, 36 is an intermediate gear for cutting, 37 Is a cutting HST input shaft of the hydrostatic continuously variable transmission 21 for cutting and conveying, 38 is a cutting HST output shaft of the hydrostatic continuously variable transmission 21 for cutting and conveying, 39 is an intermediate output shaft for cutting, and 40 is for conveying synchronization Output shaft, Reference numeral 1 is an intermediate output shaft for feeding and conveying cereals, 41A is a pulley for feeding and conveying, 42 is a tang, 43 is a drive gear of the cereal supply and conveying device 10, 44 is a cutting and threshing clutch, 45 is provided on an intermediate output shaft 39 for cutting Mowing intermediate output pulley, 46 is a mowing intermediate input pulley, 47 is a mowing intermediate output pulley 45 and a belt wound around the mowing intermediate input pulley 46, 50 is a gear case provided with a mowing intermediate gear 36, a mowing intermediate output shaft 39, etc. A hydrostatic continuously variable transmission 21 for cutting and conveying is provided on the control unit 6 side of the gear case 50. Therefore, the airframe weight balance and the attachment balance of the gear case 50 are improved.

ギヤケース５０の穀稈供給搬送装置１０側の刈取用中間出力軸３９と搬送シンクロ用出力軸４０と穀稈供給搬送中間出力軸４１には、刈取中間出力プーリー４５に掛け回したベルト４７等の張力が作用するが、この張力の作用する反対側のギヤケース５０に刈取搬送用静油圧式無段変速装置２１を設けているので、バランスが良好になる。
しかして、前記走行用静油圧式無段変速装置１２は、油圧ポンプ１４のポンプ斜板１５の傾斜を変更して油圧モータ１６への送油量を無段階に変更して回転を伝達し（図４）、油圧モータ１６にも傾斜角度を二段階に切替可能なモータ斜板１７を設け、機体の走行速度の上限の高速走行Ｃと通常走行Ｄとに切替可能に構成する（図２）。
したがって、本願の走行用静油圧式無段変速装置１２が油圧モータ１６により二段階に走行速度を切替可能にすることで副変速機能を奏するように構成しているので、ミッションケース１８内の機械的な副変速機構を省略している。
１９はモータ斜板１７を切替える切替手段（油圧シリンダ）である（図４）。 The intermediate output shaft 39 for harvesting on the side of the grain supply / conveyor 10 of the gear case 50, the output shaft 40 for synchro transmission, and the intermediate output shaft 41 for supply of the grain supply / conveyor are tensions of the belt 47 and the like wound around the intermediate output pulley 45 for harvesting. However, since the gear case 50 on the opposite side to which this tension acts is provided with the hydrostatic continuously variable transmission 21 for cutting and conveying, the balance becomes good.
Thus, the traveling hydrostatic continuously variable transmission 12 changes the inclination of the pump swash plate 15 of the hydraulic pump 14 to change the oil feed amount to the hydraulic motor 16 steplessly and transmits the rotation ( 4), the hydraulic motor 16 is also provided with a motor swash plate 17 whose inclination angle can be switched in two stages, and can be switched between high-speed traveling C and normal traveling D, which is the upper limit of the traveling speed of the aircraft (FIG. 2). .
Therefore, the traveling hydrostatic continuously variable transmission 12 of the present application is configured to perform the sub-transmission function by enabling the traveling speed to be switched in two stages by the hydraulic motor 16. A typical auxiliary transmission mechanism is omitted.
Reference numeral 19 denotes switching means (hydraulic cylinder) for switching the motor swash plate 17 (FIG. 4).

圃場の状態等の条件で主変速レバー１３を操作して走行速度を設定し、刈取作業中に穀稈が密集する等の作業条件が変化したとき、従来であれば副変速機構により減速操作するが、本願では、走行用静油圧式無段変速装置１２の油圧モータ１６のモータ斜板１７を低速側に切り替えて減速するので、円滑に走行でき、ミッションケース１８内の機械的な副変速機構を省略でき、部品点数削減でき、コストダウンおよび軽量化が図れる。
また、機械的な副変速機構では副変速用歯車の噛み合い切替えのときにショックが生じることがあるが、本願では油圧モータ１６のモータ斜板１７の高速・低速の切り替えになるので、ノークラッチ化して、操作性を向上させられる。
このミッションケース１８内の機械的な副変速機構を省略して走行用静油圧式無段変速装置１２の回転を車軸５１に伝達するミッションＭの構成は任意であるが、図５で一例を示すと、ミッションケース１８の上部に走行用静油圧式無段変速装置１２の油圧モータ１６のモータ出力軸５２を設け、モータ出力軸５２に出力歯車５３を設ける。出力歯車５３には入力軸５４の入力歯車５５を噛み合わせる。入力軸５４には別途回転数を調節するための中間歯車５４Ａを設け、中間歯車５４Ａはサイドクラッチ軸５６に固定の受動歯車５７を常時噛合せる。そのため、入力軸５４および入力歯車５５（中間歯車５４Ａ）とサイドクラッチ軸５６および単一の受動歯車５７との間には、副変速軸および副変速軸の軸方向に摺動して噛み合いを変更する複数の副変速用歯車等により構成する機械的な副変速機構を省略している。 The operating speed is set by operating the main transmission lever 13 under conditions such as the state of the field, and when the operating conditions such as crowding of culms change during the harvesting operation, the sub-transmission mechanism is conventionally used to decelerate. However, in the present application, since the motor swash plate 17 of the hydraulic motor 16 of the hydrostatic continuously variable transmission 12 for traveling is switched to the low speed side and decelerated, it can travel smoothly, and the mechanical sub-transmission mechanism in the transmission case 18 Can be omitted, the number of parts can be reduced, and the cost and weight can be reduced.
Further, in the mechanical auxiliary transmission mechanism, a shock may occur when the meshing of the auxiliary transmission gear is switched. However, in this application, since the motor swash plate 17 of the hydraulic motor 16 is switched between high speed and low speed, no clutch is used. Thus, the operability can be improved.
The structure of the transmission M that transmits the rotation of the traveling hydrostatic continuously variable transmission 12 to the axle 51 by omitting the mechanical auxiliary transmission mechanism in the transmission case 18 is arbitrary, but an example is shown in FIG. The motor output shaft 52 of the hydraulic motor 16 of the hydrostatic continuously variable transmission 12 for traveling is provided on the upper part of the transmission case 18, and the output gear 53 is provided on the motor output shaft 52. The output gear 53 meshes with the input gear 55 of the input shaft 54. The input shaft 54 is provided with an intermediate gear 54 </ b> A for adjusting the rotational speed separately, and the intermediate gear 54 </ b> A always meshes the fixed passive gear 57 with the side clutch shaft 56. Therefore, between the input shaft 54 and the input gear 55 (intermediate gear 54A), the side clutch shaft 56 and the single passive gear 57, sliding is changed in the axial direction of the auxiliary transmission shaft and the auxiliary transmission shaft to change the meshing. A mechanical sub-transmission mechanism constituted by a plurality of sub-transmission gears is omitted.

サイドクラッチ軸５６の左右側には左右サイドクラッチ５８を設ける。サイドクラッチ軸５６の受動歯車５７には遊星歯車機構６０の駆動軸６１に固定の駆動歯車６７を噛み合わせる。遊星歯車機構６０は公知の構成でよく、簡単に説明すると、左右一対の浅い円筒形状のキャリア６２に遊星歯車６３を夫々設け、遊星歯車６３には駆動軸６１に遊嵌状態に設けた遊星歯車６４を、中間遊星歯車６５を介して噛み合わせる。キャリア６２にはキャリア６２の回転に制動を付与する多板式のブレーキ６６を設ける。
６８はサイドクラッチ５８からの回転を出力するサイドクラッチ歯車、６８Ａはサイドクラッチ歯車６８に噛み合うキャリア６２に設けた歯車である。
しかして、操縦部６に設けた操向レバー（パワステレバー）７５を左右の何れにも傾倒させないと、左右のサイドクラッチ５８を入りの状態ではサイドクラッチ歯車６８とキャリア６２の歯車６８Ａとの噛み合いで回転が遊星歯車機構６０に伝達されて直進する。 Left and right side clutches 58 are provided on the left and right sides of the side clutch shaft 56. A drive gear 67 fixed to a drive shaft 61 of the planetary gear mechanism 60 is engaged with the passive gear 57 of the side clutch shaft 56. The planetary gear mechanism 60 may have a known configuration. Briefly, the planetary gear 63 is provided on a pair of left and right shallow cylindrical carriers 62, and the planetary gear 63 is provided on the drive shaft 61 in a loosely fitted state. 64 is meshed via an intermediate planetary gear 65. The carrier 62 is provided with a multi-plate brake 66 that applies braking to the rotation of the carrier 62.
Reference numeral 68 denotes a side clutch gear that outputs rotation from the side clutch 58, and reference numeral 68 </ b> A denotes a gear provided on the carrier 62 that meshes with the side clutch gear 68.
Therefore, if the steering lever (power steering lever) 75 provided in the control unit 6 is not tilted to the left or right, the side clutch gear 68 and the gear 68A of the carrier 62 are engaged with each other when the left and right side clutches 58 are engaged. The rotation is transmitted to the planetary gear mechanism 60 and goes straight.

操向レバー７５を左右何れか一方に傾倒すると、旋回内側となるサイドクラッチ５８を切りにすると共に、旋回内側となるキャリア６２に駆動軸６１からの回転を伝達しつつこの回転にブレーキ６６により制動を掛けて緩旋回を開始し、更に、操向レバー７５を傾倒させると、ブレーキ６６により旋回内側となるキャリア６２に制動を掛けて旋回内側の車軸５１の回転が零になるとブレーキターンとなり、更に、操向レバー７５を傾倒させると、キャリア６２に制動を掛けると旋回外側と旋回内側の車軸５１の回転が逆転してスピンターンとなる。
操向レバー７５には、操向レバー７５の操作位置を検出する操向レバー位置検出手段（パワステポジションセンサ）７６を設ける。操向レバー位置検出手段７６は所定の中間基準位置から左または右方向の操向レバー７５の操作を検出可能に構成する。この操向レバー７５の左または右の傾倒操作に連動して、サイドクラッチ５８とブレーキ６６との油圧回路システム（図示省略）を制御する旋回制御出力手段７７に旋回信号を出力し、旋回制御出力手段７７はサイドクラッチ５８とブレーキ６６に旋回信号を出力し、遊星歯車機構６０により左右の車軸５１の回転に回転差を発生させて旋回を開始する。 When the steering lever 75 is tilted to the left or right, the side clutch 58 on the inside of the turn is disengaged, and the rotation from the drive shaft 61 is transmitted to the carrier 62 on the inside of the turn while the rotation is braked by the brake 66. When the steering lever 75 is tilted and the carrier 62 on the inner side of the turn is braked by the brake 66 and the rotation of the axle 51 on the inner side of the turn becomes zero, a brake turn is generated. When the steering lever 75 is tilted, when the carrier 62 is braked, the rotation of the axle 51 on the outside of the turn and the inside of the turn is reversed to form a spin turn.
The steering lever 75 is provided with steering lever position detecting means (power steering position sensor) 76 for detecting the operation position of the steering lever 75. The steering lever position detection means 76 is configured to be able to detect the operation of the left or right steering lever 75 from a predetermined intermediate reference position. In conjunction with the left or right tilting operation of the steering lever 75, a turning signal is output to a turning control output means 77 for controlling a hydraulic circuit system (not shown) of the side clutch 58 and the brake 66, and the turning control output is output. The means 77 outputs a turning signal to the side clutch 58 and the brake 66 and causes the planetary gear mechanism 60 to generate a rotation difference in the rotation of the left and right axles 51 to start turning.

一方、左右の車軸５１に至る回転の回転数または左右の車軸５１の回転数を検出する回転検出手段７８を夫々設ける。
コンバイン制御コントローラ７９には、回転検出手段７８の左右の車軸５１の回転数の回転差と、操向レバー７５の傾倒操作量とを対比して、旋回制御の異常の有無を検出する旋回制御異常検出手段８０を設ける。
旋回制御異常検出手段８０は、操向レバー７５が左右何れ一方に所定角以上傾倒操作していることを操向レバー位置検出手段７６により検出し、左右の車軸５１が操向レバー７５の操作角に応じた回転差が生じていないとき、異常（旋回走行異常）と判定し、異常を報知手段（ブザー等）８１により報知する。
そのため、作業者は、操作の異常状態の発生をコンバイン制御コントローラ７９による報知手段８１の報知で認識することができる。
操向レバー７５が左右何れにも傾倒操作されていない中立位置であると操向レバー位置検出手段７６が検出しているにも拘わらず、左右の車軸５１に所定以上の回転差が生じているときは、旋回制御異常検出手段８０は異常（走行異常）と判定し、異常を報知手段（ブザー等）８１により報知する。 On the other hand, rotation detecting means 78 for detecting the number of rotations reaching the left and right axles 51 or the number of rotations of the left and right axles 51 is provided.
The combine control controller 79 detects the presence or absence of a turn control abnormality by comparing the rotation difference between the rotation speeds of the left and right axles 51 of the rotation detection means 78 with the tilting operation amount of the steering lever 75. Detection means 80 is provided.
The turning control abnormality detecting means 80 detects that the steering lever 75 is tilted to the left or right by a predetermined angle or more by the steering lever position detecting means 76, and the left and right axles 51 are operated at the operating angle of the steering lever 75. When there is no rotational difference corresponding to the above, it is determined that there is an abnormality (turning abnormality), and the abnormality is notified by an informing means (such as a buzzer) 81.
Therefore, the operator can recognize the occurrence of an abnormal operation state by the notification of the notification means 81 by the combine control controller 79.
Even though the steering lever position detecting means 76 detects that the steering lever 75 is in a neutral position where the steering lever 75 is not tilted to the left or right, a rotation difference of a predetermined value or more is generated between the left and right axles 51. When this is the case, the turning control abnormality detection means 80 determines that the abnormality (running abnormality) and notifies the abnormality by a notifying means (buzzer or the like) 81.

そのため、作業者は、旋回操作するまでもなく、直進走行状態であっても、操作の異常状態の発生をコンバイン制御コントローラ７９による報知手段８１の報知で認識することができる。
主変速レバー１３の操作位置を検出する主変速位置検出手段（ポジションセンサ）８２を設ける。
前記操向レバー７５の左右何れ一方に所定角以上傾倒操作しているときの左右の車軸５１の所定以上の回転差が検出できないとき、または、操向レバー７５が左右何れにも傾倒操作されていない中立位置であると操向レバー位置検出手段７６が検出しているにも拘わらず、左右の車軸５１に所定以上の回転差が生じることにより、旋回制御異常検出手段８０が異常と判定した状態で、主変速位置検出手段８２が主変速レバー１３の操作位置が前進または後進でかつ所定以上の走行速度となることを検出すると、コンバイン制御コントローラ７９がエンジン停止出力手段８３により出力してエンジン２２を自動的に停止させるエンジン停止手段（ソレノイド等）８４を設ける。
したがって、操作系のトラブル発生を旋回制御異常検出手段８０が検出し、これに応じて、エンジン２２を停止させて、未然に事故発生を防止する。 Therefore, the operator can recognize the occurrence of the abnormal operation state by the notification of the notification means 81 by the combine control controller 79 even in the straight traveling state without performing the turning operation.
Main shift position detecting means (position sensor) 82 for detecting the operation position of the main shift lever 13 is provided.
The steering lever 75 is tilted to either the left or right when a left or right rotation difference of the left and right axles 51 cannot be detected when the tilt lever 75 is tilted more than a predetermined angle. A state in which the turning control abnormality detection means 80 has determined that there is an abnormality due to a rotation difference greater than or equal to a predetermined value between the left and right axles 51 despite the fact that the steering lever position detection means 76 detects that there is no neutral position. When the main shift position detecting means 82 detects that the operation position of the main shift lever 13 is forward or reverse and the traveling speed is equal to or higher than a predetermined speed, the combine control controller 79 outputs the engine stop output means 83 to output the engine 22. An engine stop means (solenoid or the like) 84 for automatically stopping the engine is provided.
Accordingly, the turning control abnormality detection means 80 detects the occurrence of trouble in the operation system, and the engine 22 is stopped in response to this, thereby preventing the occurrence of an accident.

この場合、刈取脱穀クラッチ（図示省略）を入切する刈脱クラッチレバー（図示省略）の刈脱レバー位置検出手段（ポジションセンサ）８６、および、穀稈有無検知手段８７を設け、刈脱レバー位置検出手段８６と穀稈有無検知手段８７の両者がオンのときには、前記旋回制御異常検出手段８０が走行異常と判定した状態で、主変速位置検出手段８２が主変速レバー１３の操作位置が前進または後進でかつ所定以上の走行速度となることを検出しても、エンジン停止出力手段８３からの信号でエンジン停止手段（ソレノイド等）８４の作動によるエンジン２２の停止はさせず、作業を続行するように構成する。
そのため、異常を検出しても、刈取脱穀作業中では、作業を中断させず、走行可能とし、異常検出後の作業中断可能になってから、点検できるようにし、圃場の真ん中で停止して修理作業に支障が生じる事態を避けるようにしている。 In this case, there is provided a cutting / lipping lever position detecting means (position sensor) 86 and a culm presence / absence detecting means 87 of a cutting / clutching lever (not shown) for turning on and off a cutting / threshing clutch (not shown). When both the detection means 86 and the culm presence / absence detection means 87 are on, the main shift position detection means 82 moves the operation position of the main shift lever 13 forward or in a state in which the turning control abnormality detection means 80 determines that the running is abnormal. Even if it is detected that the vehicle travels backward and at a predetermined speed or more, the engine 22 is not stopped by the operation of the engine stop means (solenoid or the like) 84 by the signal from the engine stop output means 83, and the operation is continued. Configure.
Therefore, even if an abnormality is detected, during cutting and threshing work, it is possible to run without interrupting the work, so that the work can be interrupted after the abnormality is detected, so that it can be inspected, stopped in the middle of the field and repaired. We try to avoid situations where work is disturbed.

また、前記旋回制御異常検出手段８０が走行異常と判定し、前記刈脱レバー位置検出手段８６と穀稈有無検知手段８７の両者がオンのときには、走行速度の減速操作を促す表示をモニタ８８に表示するように構成する。
したがって、操作系の異常を検出しても、刈取脱穀作業中では、作業続行可能であるが、操作系の異常を作業者に報知し、未然に事故発生を防止する。
しかして、グレンタンク５内の穀物を揚穀する揚穀排出装置６および排出オーガー７は、所謂リモコンである通信操作手段９１により遠隔操作可能に構成し、通信操作手段９１とコンバイン制御コントローラ７９との間の通信異常状態を検出時、排出オーガー７の旋回や上下動および排出駆動を含めたオーガ自動停止スイッチ９２の信号を制御プログラムでＯＮにし、オーガ出力を全停止するように構成する（図１１，図１２）。 Further, when the turning control abnormality detecting means 80 determines that the running is abnormal and both the cutting / levering lever position detecting means 86 and the culm presence / absence detecting means 87 are on, a display for prompting a speed reduction operation on the monitor 88 is displayed. Configure to display.
Therefore, even if an abnormality in the operation system is detected, the operation can be continued during the mowing and threshing operation, but the operator is notified of the abnormality in the operation system, thereby preventing an accident from occurring.
Thus, the cereal discharge device 6 and the discharge auger 7 for cerealing the grain in the Glen tank 5 are configured so as to be remotely operable by the communication operation means 91 which is a so-called remote controller, and the communication operation means 91, the combine control controller 79, When an abnormal communication state is detected, a signal of the auger automatic stop switch 92 including turning, up-and-down movement and discharge drive of the discharge auger 7 is turned ON by the control program to completely stop the auger output (see FIG. 11, FIG. 12).

そして、通信異常状態を検出時のオーガ自動停止スイッチ９２のＯＮにする時間は、異常発生後、一定時間とし、その後は通信操作手段９１とコンバイン制御コントローラ７９との間の通信が正常判定されれば、オーガ自動停止スイッチ９２の制御プログラムによるＯＮ状態を解除して、オーガ出力して作業を再開し、所定時間経過後も通信異常状態を検出しているときは、オーガ自動停止スイッチ９２の信号を制御プログラムでＯＮにし、オーガ出力を全停止すると共に、その旨をモニタ８８に表示するように構成する。
そのため、通信操作手段９１の操作中に、通信が断線もしくは異常になった際、揚穀排出装置６および排出オーガ排出オーガー７等を停止させられ、所望位置以外での穀粒排出等の事故発生を未然の防止することができる。 The time during which the auger automatic stop switch 92 is turned ON when a communication abnormal state is detected is set to a fixed time after the occurrence of the abnormality, after which the communication between the communication operation means 91 and the combine control controller 79 is determined to be normal. For example, when the auger automatic stop switch 92 is released from the ON state by the control program, the auger is output and the operation is resumed, and a communication abnormal state is detected after a predetermined time has elapsed, the signal of the auger automatic stop switch 92 is detected. Is turned on by the control program, the auger output is completely stopped, and a message to that effect is displayed on the monitor 88.
Therefore, when communication is broken or abnormal during the operation of the communication operation means 91, the cereal discharge device 6, the discharge auger discharge auger 7 and the like are stopped, and an accident such as kernel discharge other than the desired position occurs. Can be prevented in advance.

（実施例の作用）
機体を走行させると、刈取部４が圃場の穀稈を刈り取って搬送し、刈取部４により搬送された穀稈はシンクロ用前側供給搬送装置１１に引き継がれ、シンクロ用前側供給搬送装置１１は穀稈を穀稈供給搬送装置１０に受け渡し、穀稈供給搬送装置１０は穀稈を一定速度で搬送して脱穀装置２の脱穀室に供給して脱穀する。
走行装置３は走行用静油圧式無段変速装置１２により主変速レバー１３を傾倒させると、走行用静油圧式無段変速装置１２がエンジン２２の一定回転を無段階に変速して伝達し、走行速度変更可能に構成し、刈取部４およびシンクロ用前側供給搬送装置１１へ伝達する回転も走行装置３の走行速度に同調して変速するようにしているので、刈取部４は走行速度に応じて最適な作業回転数が伝達される。
しかして、操縦部６に設けた操向レバー（パワステレバー）７５を左右の何れにも傾倒させないと、左右のサイドクラッチ５８を入りの状態ではサイドクラッチ歯車６８とキャリア６２の歯車６８Ａとの噛み合いで回転が遊星歯車機構６０に伝達されて直進し、操向レバー７５を左右何れか一方に傾倒すると、旋回内側となるサイドクラッチ５８を切りにすると共に、旋回内側となるキャリア６２に駆動軸６１からの回転を伝達しつつこの回転にブレーキ６６により制動を掛けて緩旋回を開始し、更に、操向レバー７５を傾倒させると、ブレーキ６６により旋回内側となるキャリア６２に制動を掛けて旋回内側の車軸５１の回転が零になるとブレーキターンとなり、更に、操向レバー７５を傾倒させると、キャリア６２に制動を掛けると旋回外側と旋回内側の車軸５１の回転が逆転してスピンターンとなる。 (Operation of Example)
When the machine is run, the cutting unit 4 harvests and transports the cereals in the field, the cereals transported by the cutting unit 4 are taken over by the synchro front supply transport device 11, and the synchro front supply transport device 11 The cocoon is delivered to the cereal supply / conveyance device 10, and the cereal supply / conveyance device 10 conveys the cereal at a constant speed and supplies it to the threshing chamber of the threshing device 2 for threshing.
When the traveling device 3 tilts the main transmission lever 13 by the traveling hydrostatic continuously variable transmission 12, the traveling hydrostatic continuously variable transmission 12 transmits the constant rotation of the engine 22 steplessly and transmits it. Since the traveling speed can be changed, and the rotation transmitted to the cutting unit 4 and the front supply / conveyor 11 for synchronization is also synchronized with the traveling speed of the traveling device 3, the cutting unit 4 is adapted to the traveling speed. The optimum working speed is transmitted.
Therefore, if the steering lever (power steering lever) 75 provided in the control unit 6 is not tilted to the left or right, the side clutch gear 68 and the gear 68A of the carrier 62 are engaged with each other when the left and right side clutches 58 are engaged. Then, the rotation is transmitted to the planetary gear mechanism 60 and goes straight, and when the steering lever 75 is tilted to either the left or right, the side clutch 58 on the inner side of the turning is disengaged and the drive shaft 61 is attached to the carrier 62 on the inner side of the turning. When the steering lever 75 is tilted, the carrier 62 which is on the inside of the turn is braked on the inside of the turn by applying a brake to the rotation by the brake 66 while transmitting the rotation from the start. When the rotation of the axle 51 becomes zero, it becomes a brake turn. Further, when the steering lever 75 is tilted, it turns when the carrier 62 is braked. The spin turn rotation side as the turn-locus inner side of the axle 51 are reversed.

この場合、操向レバー７５には、操向レバー７５の操作位置を検出する操向レバー位置検出手段７６を設け、この操向レバー７５の左または右の傾倒操作角度に連動して、遊星歯車機構６０により左右の車軸５１の回転に回転差を発生させて旋回を開始する。
一方、左右の車軸５１に至る回転の回転数または左右の車軸５１の回転数を検出する回転検出手段７８を夫々設けているので、コンバイン制御コントローラ７９の旋回制御異常検出手段８０は、回転検出手段７８の左右の車軸５１の回転数の回転差と、操向レバー７５の傾倒操作量とを対比して、旋回制御の異常の有無を検出する。
旋回制御異常検出手段８０は、操向レバー７５が左右何れ一方に所定角以上傾倒操作していることを操向レバー位置検出手段７６が検出し、左右の車軸５１が操向レバー７５の操作角に応じた回転差が生じていないとき、旋回走行異常と判定し、異常を報知手段８１により報知するので、作業者は、操作の異常状態の発生を報知手段８１の報知で認識することができる。
また、操向レバー７５が左右何れにも傾倒操作されていない中立位置であると操向レバー位置検出手段７６が検出しいるにも拘わらず、左右の車軸５１に所定以上の回転差が生じているときは、旋回制御異常検出手段８０は走行異常と判定し、異常を報知手段８１により報知するので、作業者は、旋回操作するまでもなく、直進走行状態であっても、操作系の異常状態の発生をコンバイン制御コントローラ７９による報知手段８１の報知で認識することができる。 In this case, the steering lever 75 is provided with steering lever position detecting means 76 for detecting the operation position of the steering lever 75, and the planetary gear is linked to the left or right tilting operation angle of the steering lever 75. The mechanism 60 generates a rotation difference in the rotation of the left and right axles 51 and starts turning.
On the other hand, since the rotation detecting means 78 for detecting the rotational speed of the left and right axles 51 or the rotational speed of the left and right axles 51 is provided, the turning control abnormality detecting means 80 of the combine control controller 79 is the rotation detecting means. By comparing the rotational difference between the rotational speeds of the left and right axle shafts 78 and the tilting operation amount of the steering lever 75, the presence or absence of abnormality in the turning control is detected.
In the turning control abnormality detecting means 80, the steering lever position detecting means 76 detects that the steering lever 75 is tilted to the left or right by a predetermined angle or more, and the left and right axles 51 are operated at the operating angle of the steering lever 75. When there is no rotational difference corresponding to the above, it is determined that the vehicle is turning abnormal, and the abnormality is notified by the notifying unit 81, so that the operator can recognize the occurrence of an abnormal operation state by notifying the notifying unit 81. .
Further, although the steering lever position detecting means 76 detects that the steering lever 75 is in a neutral position where the steering lever 75 is not tilted to the left or right, a rotational difference of more than a predetermined value occurs between the left and right axles 51. When turning, the turning control abnormality detecting means 80 determines that the running is abnormal, and notifies the abnormality by the notifying means 81. Therefore, the operator does not need to perform turning operation, and the operation system abnormality may occur even in the straight running state. The occurrence of the state can be recognized by the notification of the notification means 81 by the combine control controller 79.

しかして、主変速レバー１３の操作位置を検出する主変速位置検出手段８２を設け、操向レバー７５の左右何れ一方に所定角以上傾倒操作しているときの左右の車軸５１の所定以上の回転差が検出できないとき、または、操向レバー７５が左右何れにも傾倒操作されていない中立位置であると操向レバー位置検出手段７６が検出しているにも拘わらず、左右の車軸５１に所定以上の回転差が生じることにより、旋回制御異常検出手段８０が走行異常と判定した状態で、主変速位置検出手段８２が主変速レバー１３の操作位置が前進または後進でかつ所定以上の走行速度となることを検出すると、コンバイン制御コントローラ７９がエンジン停止出力手段８３が出力してエンジン停止手段（ソレノイド等）８４によりエンジン２２を停止させるように構成しているので、操作系のトラブル発生を旋回制御異常検出手段８０が検出し、これに応じて、エンジン２２を自動的に停止させて、未然に事故発生を防止する。   Accordingly, the main shift position detecting means 82 for detecting the operation position of the main shift lever 13 is provided, and the left and right axles 51 rotate more than a predetermined amount when the left and right sides of the steering lever 75 are tilted more than a predetermined angle. Even if the steering lever position detecting means 76 detects that the steering lever 75 is in the neutral position where the steering lever 75 is not tilted to the left or right when the difference cannot be detected, the left and right axles 51 are predetermined. Due to the occurrence of the above rotation difference, the main shift position detecting means 82 is in the state where the operation position of the main shift lever 13 is forward or reverse and the predetermined or higher running speed is determined in a state in which the turning control abnormality detecting means 80 determines that the running is abnormal. When it is detected, the combine control controller 79 outputs the engine stop output means 83 and stops the engine 22 by the engine stop means (solenoid or the like) 84. Since the urchin configuration, the trouble of operating system turning control abnormality detecting means 80 detects, in response thereto, the engine 22 automatically stops, to prevent accidents from occurring.

この場合、刈取脱穀クラッチ（図示省略）を入切する刈脱クラッチレバー（図示省略）の刈脱レバー位置検出手段８６および穀稈有無検知手段８７を設け、刈脱レバー位置検出手段８６と穀稈有無検知手段８７の両者がオンのときには、前記旋回制御異常検出手段８０が走行異常と判定した状態で、主変速位置検出手段８２が主変速レバー１３の操作位置が前進または後進でかつ所定以上の走行速度となることを検出しても、エンジン停止出力手段８３によるエンジン２２の自動停止はさせず、作業を続行するように構成しているので、異常を検出しても、刈取脱穀作業中では、作業を中断させず、異常検出後の作業中断可能な状態になってから、最適な状態で点検・修理できる。   In this case, a cutting / lipping lever position detecting unit 86 and a culm presence / absence detecting unit 87 of a cutting / clipping clutch lever (not illustrated) for turning on and off a cutting / threshing clutch (not illustrated) are provided. When both the presence / absence detecting means 87 are on, the main shift position detecting means 82 is in a state where the operation position of the main shift lever 13 is forward or reverse and is greater than or equal to a predetermined value in a state where the turning control abnormality detecting means 80 determines that the running is abnormal. Even if it is detected that the running speed is reached, the engine 22 is not automatically stopped by the engine stop output means 83, and the operation is continued. The system can be inspected and repaired in an optimal state after it becomes possible to interrupt the work after detecting an abnormality without interrupting the work.

また、前記旋回制御異常検出手段８０が走行異常と判定し、前記刈脱レバー位置検出手段８６と穀稈有無検知手段８７の両者がオンのときには、走行速度の減速操作を促す表示をモニタ８８に表示するように構成しているので、操作系の異常を検出しても、刈取脱穀作業中では、作業続行可能であるが、操作系の異常を作業者に報知し、未然に事故発生を防止する。
しかして、本願の回転伝達機構の作用について説明する。走行装置３の走行速度を変速する走行用静油圧式無段変速装置１２は、主変速レバー１３の傾倒操作量に応じて増減速するが、更に、走行用静油圧式無段変速装置１２の油圧モータ１６のモータ斜板１７も傾斜角度を二段階に切替可能（切替操作手段の構成は任意）に構成し、通常走行と高速走行との切替え可能に構成しているから、通常走行速度（標準側）で刈取作業（標準作業および倒伏作業）を行い、高速走行速度（高速側）で走行して移動時間を短縮する。
また、本願の走行用静油圧式無段変速装置１２は、油圧モータ１６により二段階に走行速度を切替可能にすることで副変速機能を奏するように構成しているので、ミッションケース１８内の機械的な副変速機構を省略している。 Further, when the turning control abnormality detecting means 80 determines that the running is abnormal and both the cutting / levering lever position detecting means 86 and the culm presence / absence detecting means 87 are on, a display for prompting a speed reduction operation on the monitor 88 is displayed. Since it is configured to display, even if an abnormality in the operation system is detected, the operation can be continued during the mowing and threshing operation, but the operator is notified of the abnormality in the operation system, preventing an accident from occurring. To do.
Thus, the operation of the rotation transmission mechanism of the present application will be described. The traveling hydro-hydraulic continuously variable transmission 12 that changes the traveling speed of the traveling device 3 increases and decreases according to the tilting operation amount of the main transmission lever 13. The motor swash plate 17 of the hydraulic motor 16 is also configured so that the inclination angle can be switched in two stages (the configuration of the switching operation means is arbitrary), and is configured to be able to switch between normal traveling and high-speed traveling. Carry out cutting work (standard work and overturning work) on the standard side and travel at high speed (high speed side) to shorten the travel time.
Further, the hydrostatic continuously variable transmission 12 for traveling of the present application is configured to perform a sub-transmission function by enabling the traveling speed to be switched in two stages by the hydraulic motor 16. The mechanical auxiliary transmission mechanism is omitted.

そのため、圃場の状態等の条件で主変速レバー１３を操作して走行速度を設定し、刈取作業中に穀稈が密集する等の作業条件が変化したとき、従来であれば副変速機構により減速操作するが、本願では、走行用静油圧式無段変速装置１２の油圧モータ１６のモータ斜板１７を低速側に切り替えて減速するので、円滑に走行でき、ミッションケース１８内の機械的な副変速機構を省略でき、部品点数削減でき、コストダウンおよび軽量化が図れる。
また、機械的な副変速機構では副変速用歯車の噛み合い切替えのときにショックが生じることがあるが、本願では油圧モータ１６のモータ斜板１７の高低の切り替えになるので、ノークラッチ化して、操作性を向上させられる。
このミッションケース１８内の機械的な副変速機構を省略して走行用静油圧式無段変速装置１２の回転を車軸５１に伝達するミッションＭの構成は任意であるが、一例を示すと、ミッションケース１８の上部に走行用静油圧式無段変速装置１２の油圧モータ１６のモータ出力軸５２を設け、モータ出力軸５２に出力歯車５３を設ける。出力歯車５３には入力歯車５５を噛み合わせ、入力歯車５５はサイドクラッチ軸５６に固定の受動歯車５７を常時噛合せ、入力軸５４および単一の入力歯車５５とサイドクラッチ軸５６および単一の受動歯車５７との間には、機械的な副変速機構である副変速軸および複数の副変速用歯車を省略している。 Therefore, when the operating speed changes by setting the traveling speed by operating the main transmission lever 13 under conditions such as the state of the field, and when the working conditions such as the crowding of cereals change during the cutting operation, the conventional transmission is decelerated by the auxiliary transmission mechanism. In this application, since the motor swash plate 17 of the hydraulic motor 16 of the hydrostatic continuously variable transmission 12 for traveling is switched to the low speed side and decelerated, the vehicle can run smoothly, and the mechanical side in the transmission case 18 The transmission mechanism can be omitted, the number of parts can be reduced, and the cost and weight can be reduced.
In addition, in the mechanical auxiliary transmission mechanism, a shock may occur when the meshing of the auxiliary transmission gear is switched, but in the present application, since the motor swash plate 17 of the hydraulic motor 16 is switched between high and low, Operability can be improved.
The configuration of the transmission M that transmits the rotation of the hydrostatic continuously variable transmission 12 for traveling to the axle 51 without the mechanical auxiliary transmission mechanism in the transmission case 18 is arbitrary. A motor output shaft 52 of the hydraulic motor 16 of the traveling hydrostatic continuously variable transmission 12 is provided above the case 18, and an output gear 53 is provided on the motor output shaft 52. The input gear 55 is meshed with the output gear 53, the input gear 55 is always meshed with the passive gear 57 fixed to the side clutch shaft 56, the input shaft 54 and the single input gear 55 and the side clutch shaft 56 and the single clutch. An auxiliary transmission shaft and a plurality of auxiliary transmission gears, which are mechanical auxiliary transmission mechanisms, are omitted from the passive gear 57.

しかして、ミッションケース１８の作動を簡単に説明すると、サイドクラッチ軸５６の左右側には左右サイドクラッチ５８を設け、サイドクラッチ軸５６の受動歯車５７には遊星歯車機構６０の駆動軸６１に固定の駆動歯車６７を噛み合わせ、遊星歯車機構６０は、浅い円筒形状のキャリア６２に遊星歯車６３を設け、駆動軸６１に遊嵌状態に設けた遊星歯車６４に中間遊星歯車６５を介して噛み合わせる。キャリア６２にはキャリア６２の回転に制動を付与する多板式のブレーキ６６を設けているから、左右のサイドクラッチ５８を入りの状態では直進し、パワステを傾倒させるとブレーキ６６により旋回内側となるキャリア６２に制動を掛けて緩旋回を開始し、更に、ブレーキ６６により旋回内側となるキャリア６２に制動を掛けて旋回内側の車軸の回転が零になるとブレーキターンとなり、更に、キャリア６２に制動を掛けると旋回外側と旋回内側の車軸の回転が逆転してスピンターンとなる。
ミッションケース１８内の機械的な副変速機構を省略しているので、走行用静油圧式無段変速装置１２あるいはミッションケース１８に不具合があったとき、機械的な副変速機構のニュートラル位置への切替えができないが、本願では、入力歯車５５を設けた入力軸５４をミッションケース１８に対して抜けるように構成しているので、入力軸５４を抜くと、モータ出力軸５２と車軸５１との伝達は切断されて自由状態になって、ニュートラル化可能になる。 Thus, the operation of the transmission case 18 will be briefly described. The left and right side clutches 58 are provided on the left and right sides of the side clutch shaft 56, and the passive gear 57 of the side clutch shaft 56 is fixed to the drive shaft 61 of the planetary gear mechanism 60. The planetary gear mechanism 60 is provided with a planetary gear 63 on a shallow cylindrical carrier 62 and meshes with a planetary gear 64 provided in a loosely fitted state on the drive shaft 61 via an intermediate planetary gear 65. . Since the carrier 62 is provided with a multi-plate brake 66 that applies braking to the rotation of the carrier 62, the carrier 62 goes straight when the left and right side clutches 58 are engaged, and the carrier is turned inside by the brake 66 when the power steering is tilted. The brake 62 is braked to start a gentle turn, and further, the brake 66 is braked to the carrier 62 on the inner side of the turn, and when the rotation of the axle on the inner side of the turn becomes zero, a brake turn is started, and further, the carrier 62 is braked. Then, the rotation of the axles on the outside and inside of the turn is reversed to form a spin turn.
Since the mechanical subtransmission mechanism in the transmission case 18 is omitted, when there is a malfunction in the hydrostatic continuously variable transmission 12 for traveling or the transmission case 18, the mechanical subtransmission mechanism is moved to the neutral position. In this application, since the input shaft 54 provided with the input gear 55 is configured to be removed from the transmission case 18 in this application, when the input shaft 54 is removed, the motor output shaft 52 and the axle 51 are transmitted. Will be cut free and become neutral.

エンジン２２の回転伝動について簡単に説明すると、エンジン２２の回転が中間プーリー２８に伝達され、中間プーリー２８は中間軸２９と中間歯車３０を介してケースの中間伝動軸３１に回転を伝達し、中間伝動軸３１で扱胴３４側と穀稈供給搬送中間出力軸４１および刈取搬送用静油圧式無段変速装置２１とに伝動を分岐する。脱穀用傘歯車３２に伝達された回転は扱胴３４に伝達して駆動する。
中間伝動軸３１の回転は穀稈供給搬送中間出力軸４１に伝達されて、穀稈供給搬送中間出力軸４１の回転は穀稈供給搬送装置１０の終端側から入力させて、穀稈供給搬送装置１０を駆動する。
したがって、穀稈供給搬送中間出力軸４１は走行用静油圧式無段変速装置１２および刈取搬送用静油圧式無段変速装置２１とは無関係にエンジン２２からの一定に設定された回転を、穀稈供給搬送装置１０に伝達し、穀稈供給搬送装置１０と扱胴３４とは常時同じ関係で回転する。 The rotation transmission of the engine 22 will be briefly described. The rotation of the engine 22 is transmitted to the intermediate pulley 28, and the intermediate pulley 28 transmits the rotation to the intermediate transmission shaft 31 of the case via the intermediate shaft 29 and the intermediate gear 30. The transmission is branched by the transmission shaft 31 to the handling cylinder 34 side, the cereal supply / conveyance intermediate output shaft 41 and the hydrostatic continuously variable transmission 21 for harvesting / conveying. The rotation transmitted to the threshing bevel gear 32 is transmitted to the barrel 34 and driven.
The rotation of the intermediate transmission shaft 31 is transmitted to the grain supply / intermediate output shaft 41, and the rotation of the grain supply / transport intermediate output shaft 41 is input from the terminal side of the grain supply / transport apparatus 10, 10 is driven.
Accordingly, the cereal supply / conveyance intermediate output shaft 41 generates a constant rotation from the engine 22 regardless of the hydrostatic continuously variable transmission 12 for traveling and the hydrostatic continuously variable transmission 21 for harvesting and conveying. It is transmitted to the koji supply / conveyance device 10, and the cereal supply / conveyance device 10 and the handling cylinder 34 always rotate in the same relationship.

穀稈供給搬送中間出力軸４１の下手側には刈取用中間歯車３６により回転が伝達される刈取搬送用静油圧式無段変速装置２１の刈取ＨＳＴ入力軸３７を設けているので、穀稈供給搬送中間出力軸４１の回転が刈取搬送用静油圧式無段変速装置２１のポンプに入力されて、刈取搬送用静油圧式無段変速装置２１のモータから変速された回転が刈取ＨＳＴ出力軸３８により出力され、刈取ＨＳＴ出力軸３８は刈取用中間出力軸３９および搬送シンクロ用出力軸４０により刈取部４およびシンクロ用前側供給搬送装置１１を駆動回転させる。
なお、前記した各実施例は、理解を容易にするために、個別または混在させて図示、あるいは説明しており、ブロック図等を含めたこれらの実施例は相互に夫々種々組合せ可能であり、これらの表現によって、構成・作用等が限定されるものではなく、また、相乗効果を奏する場合も勿論存在する。 On the lower side of the grain supply / conveyance intermediate output shaft 41, there is provided the harvesting HST input shaft 37 of the hydrostatic continuously variable transmission 21 for harvesting and conveying, whose rotation is transmitted by the intermediate gear 36 for harvesting. The rotation of the transfer intermediate output shaft 41 is input to the pump of the chopping transfer hydrostatic continuously variable transmission 21 and the rotation shifted from the motor of the chopping transfer hydrostatic continuously variable transmission 21 is the cutting HST output shaft 38. The mowing HST output shaft 38 drives and rotates the mowing unit 4 and the synchro front supply / transport device 11 by the mowing intermediate output shaft 39 and the transport synchro output shaft 40.
In addition, for ease of understanding, each of the above-described embodiments is illustrated or described individually or mixedly, and these embodiments including a block diagram can be variously combined with each other. These expressions are not intended to limit the configuration / action and the like, and there are, of course, cases where a synergistic effect is achieved.

コンバインの側面図。The side view of a combine. 刈取部の回転数と車速との関係図。The relationship figure of the rotation speed of a cutting part and a vehicle speed. 伝動機構の概略図。Schematic of a transmission mechanism. 無段変速装置の油圧回路図。The hydraulic circuit diagram of a continuously variable transmission. ミッション機構の概略図。Schematic diagram of the mission mechanism. ミッションケースの断面図。Sectional drawing of a mission case. ミッションケースの断面図。Sectional drawing of a mission case. ブロック図。Block Diagram. フロー図。Flow diagram. 他の実施例のフロー図。The flowchart of another Example. 他の実施例のブロック図。The block diagram of another Example. 他の実施例のフロー図。The flowchart of another Example.

符号の説明Explanation of symbols

１…機体フレ−ム、２…脱穀装置、３…走行装置、４…刈取部、５…グレンタンク、７…排出オーガー、１０…穀稈供給搬送装置、１１…シンクロ用前側供給搬送装置、１２…走行用静油圧式無段変速装置、１３…主変速レバー、１４…油圧ポンプ、１５…ポンプ斜板、１６…油圧モータ、１７…モータ斜板、１８…ミッションケース、２１…刈取搬送用静油圧式無段変速装置、２２…エンジン、２６…入力プーリー、２７…ミッションケース、２８…中間プーリー、２９…中間軸、３０…中間歯車、３１…中間伝動軸、３２…脱穀用傘歯車、３３…脱穀伝動軸、３４…扱胴、３５…処理胴、３６…刈取用中間歯車、３７…刈取ＨＳＴ入力軸、３８…刈取ＨＳＴ出力軸、３９…刈取用中間出力軸、４０…搬送シンクロ用出力軸、４１…穀稈供給搬送中間出力軸、４２…唐箕、４３…駆動歯車、４４…刈取脱穀クラッチ、４５…刈取中間出力プーリー、４６…刈取中間入力プーリー、４７…ベルト、５０…ギヤケース、５２…モータ出力軸、５３…出力歯車、５５…入力歯車、５４…入力軸、５６…サイドクラッチ軸、５７…受動歯車、５８…サイドクラッチ、６０…遊星歯車機構、６１…駆動軸、６２…キャリア、６３…遊星歯車、６４…遊星歯車、６５…中間遊星歯車、６６…ブレーキ、６７…駆動歯車、７５…操向レバー、７６…操向レバー位置検出手段、７７…旋回制御出力手段、７８…回転検出手段、７９…コンバイン制御コントローラ、８０…旋回制御異常検出手段、８１…報知手段、８２…主変速位置検出手段、８３…エンジン停止出力手段、８４…エンジン停止手段、８６…刈脱レバー位置検出手段、８７…穀稈有無検知手段、８８…モニタ、９１…通信操作手段、９２…オーガ自動停止スイッチ。   DESCRIPTION OF SYMBOLS 1 ... Airframe frame, 2 ... Threshing apparatus, 3 ... Traveling apparatus, 4 ... Cutting part, 5 ... Glen tank, 7 ... Discharge auger, 10 ... Grain supply / conveyance apparatus, 11 ... Front supply conveyance apparatus for synchro, 12 ... hydrostatic continuously variable transmission for travel, 13 ... main speed change lever, 14 ... hydraulic pump, 15 ... pump swash plate, 16 ... hydraulic motor, 17 ... motor swash plate, 18 ... mission case, 21 ... static for cutting and conveying Hydraulic continuously variable transmission, 22 ... engine, 26 ... input pulley, 27 ... transmission case, 28 ... intermediate pulley, 29 ... intermediate shaft, 30 ... intermediate gear, 31 ... intermediate transmission shaft, 32 ... threshing bevel gear, 33 ... Threshing transmission shaft, 34 ... Handling cylinder, 35 ... Processing cylinder, 36 ... Cutting intermediate gear, 37 ... Cutting HST input shaft, 38 ... Cutting HST output shaft, 39 ... Cutting intermediate output shaft, 40 ... Output for conveying synchronization Axis 41 ... Conveyance intermediate output shaft, 42 ... Kara, 43 ... Drive gear, 44 ... Mowing threshing clutch, 45 ... Mowing intermediate output pulley, 46 ... Mowing intermediate input pulley, 47 ... Belt, 50 ... Gear case, 52 ... Motor output shaft, 53 ... Output gear 55 ... Input gear 54 ... Input shaft 56 ... Side clutch shaft 57 ... Passive gear 58 ... Side clutch 60 ... Planet gear mechanism 61 ... Drive shaft 62 ... Carrier 63 ... Planet gear 64 ... Planetary gear, 65 ... Intermediate planetary gear, 66 ... Brake, 67 ... Drive gear, 75 ... Steering lever, 76 ... Steering lever position detecting means, 77 ... Turning control output means, 78 ... Rotation detecting means, 79 ... Combine Control controller 80 ... Turning control abnormality detecting means 81 ... Informing means 82 ... Main shift position detecting means 83 ... Engine stop output means 84 ... Engine stop means 86 ... mowing de lever position detecting means, 87 ... grain 稈有 free detection means, 88 ... monitor, 91 ... communication operating means, 92 ... auger automatic stop switch.

Claims (6)

走行用静油圧式無段変速装置（１２）により走行速度を無段階に変速可能な走行装置（３）の前方に刈取部（４）を設け、走行装置（３）の上方には脱穀装置（２）を設け、前記走行装置（３）は、操向レバー（７５）の操作によりミッションケース（１８）の左右の車軸（５１）の回転に回転差を発生させて旋回するように構成し、前記操向レバー（７５）の操作位置を検出する操向レバー位置検出手段（７６）を設け、前記左右の車軸（５１）の夫々の回転数を検出する回転検出手段（７８）を設け、該回転検出手段（７８）により検出した左右の車軸（５１）の回転数の回転差と、前記操向レバー（７５）の傾倒操作角度とを対比して、制御コントローラ（７９）の旋回制御異常検出手段（８０）で旋回制御の異常の有無を検出する構成とし、該旋回制御異常検出手段（８０）で異常と判定されると、その旨を報知手段（８１）により報知する構成としたことを特徴とするコンバイン。 A cutting part (4) is provided in front of the traveling device (3) capable of continuously changing the traveling speed by the hydrostatic continuously variable transmission (12) for traveling, and a threshing device (3) is disposed above the traveling device (3). 2), and the traveling device (3) is configured to turn by generating a rotational difference in the rotation of the left and right axles (51) of the mission case (18) by operating the steering lever (75), Steering lever position detecting means (76) for detecting the operating position of the steering lever (75) is provided, and rotation detecting means (78) for detecting the respective rotational speeds of the left and right axles (51) is provided, By detecting the rotation difference between the rotation speeds of the left and right axles (51) detected by the rotation detection means (78) and the tilting operation angle of the steering lever (75), the turning control abnormality of the control controller (79) is detected. Means (80) for detecting the presence or absence of an abnormality in turning control. And then, if it is determined to be abnormal by said pivot control abnormality detecting means (80), combined, characterized in that a configuration for notifying the notification unit (81) to that effect. 請求項１において、前記操向レバー（７５）が左右何れ一方に所定角以上傾倒操作していることを操向レバー位置検出手段（７６）で検出し、左右の車軸（５１）に操向レバー（７５）の操作角に応じた回転差が生じていないことを回転検出手段（７８）で検出した場合に、前記旋回制御異常検出手段（８０）で異常と判定し、該異常を前記報知手段（８１）により報知するように構成したことを特徴とするコンバイン。 The steering lever position detecting means (76) detects that the steering lever (75) is tilted more than a predetermined angle in either of the left and right directions, and the steering lever on the left and right axles (51). When the rotation detecting means (78) detects that no rotation difference corresponding to the operation angle of (75) has occurred, the turning control abnormality detecting means (80) determines that the abnormality is present, and the abnormality is reported to the notification means. The combine characterized by having comprised so that it may alert | report by (81). 請求項１または請求項２において、前記操向レバー（７５）が左右何れにも傾倒操作されていない中立位置であると操向レバー位置検出手段（７６）が検出しているにも拘わらず、左右の車軸（５１）に所定以上の回転差が生じた場合に、旋回制御異常検出手段（８０）で異常と判定し、該異常を報知手段（８１）により報知するように構成したことを特徴とするコンバイン。 In claim 1 or claim 2, although the steering lever position detecting means (76) detects that the steering lever (75) is in a neutral position that is not tilted to the left or right, When a rotation difference greater than or equal to a predetermined value occurs on the left and right axles (51), the turning control abnormality detecting means (80) determines that there is an abnormality, and the abnormality is notified by the notifying means (81). Combine with. 請求項１または請求項２または請求項３において、前記走行用静油圧式無段変速装置（１２）を操作する主変速レバー（１３）の操作位置を検出する主変速位置検出手段（８２）を設け、前記操向レバー（７５）の左右何れ一方に所定角以上傾倒操作しているときの左右の車軸（５１）の所定以上の回転差が検出できないとき、または、操向レバー（７５）が左右何れにも傾倒操作されていない中立位置であると操向レバー位置検出手段（７６）が検出しているにも拘わらず、左右の車軸（５１）に所定以上の回転差が生じることにより、旋回制御異常検出手段（８０）が走行異常と判定した状態で、前記主変速位置検出手段（８２）で主変速レバー（１３）の操作位置が前進または後進でかつ所定以上の走行速度となる位置にあることを検出すると、エンジン（２２）を自動的に停止させるように構成したことを特徴とするコンバイン。 The main transmission position detecting means (82) for detecting an operation position of a main transmission lever (13) for operating the hydrostatic continuously variable transmission (12) for traveling according to claim 1, 2 or 3. Provided, when a rotation difference more than a predetermined difference between the left and right axles (51) is not detected when the steering lever (75) is tilted more than a predetermined angle to either the left or right, or the steering lever (75) is Even though the steering lever position detecting means (76) detects that it is a neutral position that is not tilted to the left or right, a difference in rotation more than a predetermined value occurs between the left and right axles (51). A position at which the operation position of the main transmission lever (13) is forward or backward and at a predetermined speed or more in the main transmission position detection means (82) in a state in which the turning control abnormality detection means (80) determines that the traveling abnormality has occurred. Check that Then, combine, characterized by being configured to stop the engine (22) automatically. 請求項４において、前記刈取部（４）および前記脱穀装置（２）の駆動の入切を検出する刈脱レバー位置検出手段（８６）と、前記刈取部（４）に搬送中の穀稈の有無を検出する穀稈有無検知手段（８７）を設け、前記刈脱レバー位置検出手段（８６）が刈取部（４）および脱穀装置（２）の駆動の入りを検出し、且つ、穀稈有無検知手段（８７）が搬送中の穀稈の有りを検出した場合には、前記旋回制御異常検出手段（８０）が走行異常と判定した状態で、主変速位置検出手段（８２）が主変速レバー（１３）の操作位置が前進または後進でかつ所定以上の走行速度となる位置にあることを検出しても、エンジン（２２）を停止させず、作業を続行しうる構成としたことを特徴とするコンバイン。 In Claim 4, a cutting / levering lever position detecting means (86) for detecting turning on and off of the cutting unit (4) and the threshing device (2), and the cedar being conveyed to the cutting unit (4) There is provided a culm presence / absence detecting means (87) for detecting the presence / absence of the chopping lever position detecting means (86) detecting the driving of the reaping part (4) and the threshing device (2), and the presence / absence of the culm When the detecting means (87) detects the presence of the cereal being conveyed, the main shift position detecting means (82) is the main shift lever in a state in which the turning control abnormality detecting means (80) determines that the running is abnormal. The invention is characterized in that the operation can be continued without stopping the engine (22) even if it is detected that the operation position of (13) is forward or reverse and at a position where the traveling speed is higher than a predetermined value. Combine to do. 請求項５において、前記旋回制御異常検出手段（８０）で走行異常と判定し、前記刈脱レバー位置検出手段（８６）が刈取部（４）および脱穀装置（２）の駆動の入りを検出し、且つ、穀稈有無検知手段（８７）が搬送中の穀稈の有りを検出した場合には、走行速度の減速操作を促す表示をモニタ（８８）に表示するように構成したことを特徴とするコンバイン。 6. The turning control abnormality detecting means (80) determines that the running abnormality is detected, and the cutting / lipping lever position detecting means (86) detects the driving of the cutting part (4) and the threshing device (2). And, when the presence / absence detection means (87) of the culm detects the presence of the culm being transported, the monitor (88) is configured to display a display for prompting a deceleration operation of the traveling speed. Combine to do.

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