The invention provides a super-lift winch lockpin device control system which comprises a super-lift winch, a hydraulic motor used for driving the super-lift winch to rotate, a first reversing valve used for controlling the hydraulic motor, a tension oil cylinder adapting to the super-lift winch, a lockpin oil cylinder connected with the tension oil cylinder, and a second reversing valve used for controlling the lockpin oil cylinder, wherein the first reversing valve is a three-position four-way valve with a meso-position function of an O type, the second reversing valve is a three-position four-way valve with a meso-position function of a Y type, and a single-way valve used for preventing hydraulic oil from backwards flowing from an oil inlet is connected to the oil inlet of the second reversing valve. According to the super-lift winch lockpin device control system, the single-way valve is arranged at the oil inlet of the second reversing valve, when the lockpin oil cylinder operates, hydraulic oil in a rodless cavity of the lockpin oil cylinder can be prevented from backwards flowing when a pressure of a hydraulic system fluctuates; the lockpin oil cylinder can be in a floating state by virtue of the meso-position function of the Y type of the second reversing valve when not operating. The invention further discloses a crane with the super-lift winch lockpin device control system.


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    Super-lift winch lockpin device control system and crane


    Beteiligte:
    LIU YONGPING (Autor:in) / MI YONG (Autor:in)

    Erscheinungsdatum :

    08.04.2015


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    B66C Krane , CRANES



    Crane and super-lift winch control system and method of crane

    PENG MUYUAN / LIU YONGZAN / GUO JIMEI et al. | Europäisches Patentamt | 2021

    Freier Zugriff

    Super-lift winch speed reducer matched with crane

    HUANG CHUNYOU / YUAN CHAOGUO / DING SUIYAO et al. | Europäisches Patentamt | 2023

    Freier Zugriff

    Control method, control system and controller for super-lift winch of crane

    MA SHENG / HE WEICHENG / LI SONGYUN | Europäisches Patentamt | 2020

    Freier Zugriff


    Super-lifting winch and crane

    CAO LIFENG / TONG XUEFENG / QIN XIAOHU et al. | Europäisches Patentamt | 2016

    Freier Zugriff