The invention 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 comprises a rotation control subsystem and a hydraulic control subsystem, wherein the rotation control subsystem is suitable for being in transmission connection with a rotation mechanism; the lifting control subsystem is suitable for being in transmission connection with a lifting mechanism; the main control assembly is connected with the rotation control subsystem and the lifting control subsystem through a main control oil way, and the main control assembly can control the oil supply state of the main control oil way so as to control the rotation control subsystem and the lifting control subsystem to conduct state adjustment between the normal working state and the free floating state. According to the technical scheme, the cargo boom can enter the free floating state through the rotation control subsystem and the lifting control subsystem, the operation process is simple and convenient, the one-key operation effect can be achieved, an operator can be effectively prevented from omitting operation steps, and potential safety hazards can be effectively reduced when the cargo boom is borne by the externally hung trailer to run.

    本发明属于液压系统技术领域,具体涉及一种起重机液压控制系统和起重机。起重机液压控制系统包括:回转控制子系统,回转控制子系统适于与回转机构传动连接;起升控制子系统,起升控制子系统适于与起升机构传动连接;主控制组件,通过主控油路与回转控制子系统和起升控制子系统连接,主控制组件能够控制主控油路的供油状态,以控制回转控制子系统和起升控制子系统在正常工作状态与自由浮动状态之间进行状态调整。通过本发明的技术方案,可以通过回转控制子系统和起升控制子系统使起重臂进入自由浮动状态,操作过程简单便捷,可实现一键操作效果,可以有效防止操作人员遗漏操作步骤,在通过外挂拖车承载起重臂行驶时可以有效降低安全隐患。


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    Title :

    Crane hydraulic control system and crane


    Additional title:

    起重机液压控制系统和起重机


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

    Publication date :

    2023-03-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

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



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