One 3-position selector valve is used as a main control valve that controls hoist cylinders. A control valve is provided for supplying hydraulic oil from a low-pressure hydraulic pressure source to rod chambers of the hoist cylinders upon lowering a vessel. Provided between the rod chambers of the hoist cylinders and an oil tank is a check valve that enables to supply hydraulic oil from the oil tank to the rod chambers upon a vessel FLOAT operation. When an operation command from a control device is a vessel-lowering command, a controller switches the main control valve to a FLOAT position, and also switches the vessel LOWER operation control valve and supplies hydraulic oil of a low pressure from the low-pressure hydraulic pressure source to the rod chambers of the hoist cylinders.


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    Titel :

    Hoist Device for Dump Truck


    Beteiligte:
    FUSHIKI MICHIO (Autor:in)

    Erscheinungsdatum :

    15.12.2016


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    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 / F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein



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