The present application belongs to the technical field of hydraulic systems, and particularly relates to a crane hydraulic control system and a crane. The crane hydraulic control system includes: a slewing control subsystem configured to be in transmission connected with the slewing mechanism; a hoisting control subsystem configured to be in transmission connected a hoisting mechanism; and a main control assembly connecting with the slewing control subsystem and the hoisting control subsystem through a main control oil circuit, the main control assembly is configured to control oil supply status of the main control oil circuit to control the slewing control subsystem and the hoisting control subsystem to switch between a normal working state and a free floating state. According to the technical solution of the present application, the boom can enter a free floating state through the slewing control subsystem and the hoisting control subsystem, the operation process is simple and convenient, and can achieve a one-button operation effect, which can effectively prevent the operator from missing operating steps, and can effectively reduce safety hazards when driving with an external trailer carrying the boom.


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    Title :

    CRANE HYDRAULIC CONTROL SYSTEM AND CRANE


    Contributors:
    ZOU YANHU (author) / ZOU XINGLONG (author) / ZHOU LIYUN (author)

    Publication date :

    2024-05-16


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B66C Krane , CRANES / F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein



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