PROBLEM TO BE SOLVED: To provide a work vehicle prime mover structure for preventing over-heated state of an engine caused by a poor work of a driving state changing-over means, for keeping a high suction capacity of a radiator fan and a high exhaust capacity of a dust exhaust fan and for showing a less number of times of repairing and inspection works.SOLUTION: The problem described above is resolved by a constitution in which when an operating state of a driving state changing-over means (45) is diagnosed poor by a control device (40) and a water temperature (T) of cooling water of an engine (E) is higher than a prescribed second set water temperature (T2) by the control device (40), a connected state of a threshing clutch (41A) for transmitting a rotating force power of the engine (E) to a threshing device (3) for threshing grain stalks is released to cause a rotation of the engine (E) to be reduced, and in turn the problem described above is resolved by a constitution in which when the operated state of the driving state changing-over means (45) is diagnosed poor by the control device (40) and the water temperature (T) of cooling water of the engine (E) is lower than the second set water temperature (T2) by the control device, the engine (E) is stopped.

    【課題】駆動状態切換手段の作動不良によるエンジンのオーバヒートを防止して、ラジエータファンの吸入能力と排塵ファンの排気能力が高く、保守・点検作業の頻度が少ない作業車輌の原動部構造を提供する。【解決手段】制御装置(40)によって駆動状態切換手段(45)の作動状態が不良と診断され、且つ、エンジン(E)の冷却水の水温(T)が所定の第2設定水温(T2)よりも高温であると診断された場合に、エンジン(E)の回転動力を穀桿を脱穀する脱穀装置(3)に伝動する脱穀クラッチ(41A)の接続を解除し、エンジン(E)の回転を低下させる構成とし、制御装置(40)によって前記駆動状態切換手段(45)の作動状態が不良と診断され、且つ、エンジン(E)の冷却水の水温が第2設定水温(T2)よりも低温であると診断された場合には、エンジン(E)を停止する構成とすることにより解決される。【選択図】図16


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    Titel :

    WORK VEHICLE PRIME MOVER STRUCTURE


    Weitere Titelangaben:

    作業車輌の原動部構造


    Beteiligte:
    GOTO KAZUMI (Autor:in) / OKUMURA KAZUYA (Autor:in) / IWAMOTO HIROSHI (Autor:in)

    Erscheinungsdatum :

    2016-01-18


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    IPC:    F01P Kühlung von Kraft- und Arbeitsmaschinen oder Kraftmaschinen allgemein , COOLING OF MACHINES OR ENGINES IN GENERAL / A01D Ernten , HARVESTING / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES



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