PROBLEM TO BE SOLVED: To provide a crawler tractor which includes a compact transmission case in a crosswise direction.SOLUTION: A crawler tractor 1 is swivel-driven in which power transmitted from an engine 3 through a transmission case 5 to a front drive axle 6, and output from a continuously variable transmission 81 for turning attached to the front drive axle 6 is combined and transmitted to a crawler type travel device 2. A continuously variable transmission 65 for going straight is arranged at the transmission case 5, a hydraulic pump 66 and a hydraulic motor 67 are serially disposed on a pump shaft 64 in the continuously variable transmission 65 for going straight, a motor shaft 68 to be an output shaft of the continuously variable transmission 65 for going straight is disposed on the pump shaft 64, and power is transmitted from the motor shaft 68 through a forward/backward travel switching device 70 and a sub-transmission 74 to the front drive axle 6 including the continuously variable transmission 81 for turning to drive the crawler type travel device 2.SELECTED DRAWING: Figure 9

    【課題】左右方向にコンパクトなミッションケースを有するクローラトラクタを提供する。【解決手段】エンジン3からの動力を、ミッションケース5を介してフロントドライブアクスル6に伝え、該フロントドライブアクスル6に付設した旋回用無段変速装置81からの出力を合成してクローラ式走行装置2に伝えて旋回駆動されるクローラトラクタ1において、前記ミッションケース5に直進用無段変速装置65が備えられ、該直進用無段変速装置65はポンプ軸64上に油圧ポンプ66と油圧モータ67が直列配置され、直進用無段変速装置65の出力軸となるモータ軸68が前記ポンプ軸64上に配置され、該モータ軸68より前後進切替装置70および副変速装置74を介して旋回用無段変速装置81を備えるフロントドライブアクスル6に動力を伝達しクローラ式走行装置2を作動させる。【選択図】図9


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    Title :

    CRAWLER TRACTOR


    Additional title:

    クローラトラクタ


    Contributors:

    Publication date :

    2016-12-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B62D MOTOR VEHICLES , Motorfahrzeuge / F16H Getriebe , GEARING



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