To accurately control a mixer drum.SOLUTION: A controller 20 controls a drive unit 4 that rotatably drives a mixer drum 2, where the drive unit 4 includes an electromagnetic proportional valve 31 that controls a flow of a working fluid guided from a hydraulic pump 5 to a hydraulic motor 6, and the electromagnetic proportional valve 31 includes a solenoid 32 that changes over a normal rotation position 31A that guides to the hydraulic motor 6 the working fluid discharged by the hydraulic pump 5 so that the mixer drum 2 rotates in a normal rotation direction and a reverse rotation position 31B that guides to the hydraulic motor 6 the working fluid discharged by the hydraulic pump 5 so that the mixer drum 2 rotates in a reverse rotation direction. The controller 20 determines the rotation direction of the mixer drum 2 from a command value to the solenoid 32 when the mixer drum 2 rotates in the normal rotation direction and from a command value to the solenoid 32 when the mixer drum 2 rotates in the reverse rotation direction.SELECTED DRAWING: Figure 2

    【課題】ミキサドラムを正確に制御する。【解決手段】ミキサドラム2を回転駆動する駆動装置4を制御するコントローラ20では、駆動装置4は、油圧ポンプ5から油圧モータ6に導かれる作動流体の流れを制御する電磁比例弁31を有し、電磁比例弁31は、ミキサドラム2が正転方向に回転するように油圧ポンプ5が吐出した作動流体を油圧モータ6に導く正転位置31Aと、ミキサドラム2が逆転方向に回転するように油圧ポンプ5が吐出した作動流体を油圧モータ6に導く逆転位置31Bと、を切り換えるためのソレノイド32を有し、コントローラ20は、ミキサドラム2を正転方向に回転させる時のソレノイド32への指令値及びミキサドラム2を逆転方向に回転させる時のソレノイド32への指令値からミキサドラム2の回転方向を判定する。【選択図】図2


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    Title :

    MIXER DRUM CONTROL DEVICE


    Additional title:

    ミキサドラム制御装置


    Contributors:

    Publication date :

    2024-12-19


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B28C Tonaufbereitung , PREPARING CLAY / B60P Fahrzeuge zum Transport von Lasten oder zum Befördern, Tragen oder Aufnehmen besonderer Lasten oder Gegenstände , VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS



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