The invention relates to an electro-hydraulic actuator for four-cylinder synchronous lifting of an AGV (automatic guided vehicle). The electro-hydraulic actuator comprises a hydraulic control valve bank, a motor assembly, a hydraulic pump and a single-rod symmetrical oil cylinder assembly, and the hydraulic pump is mounted in the hydraulic control valve bank; the motor assembly is connected with the hydraulic pump, the hydraulic pump is connected with the single-rod symmetrical oil cylinder assembly through the hydraulic control valve set, and the hydraulic control valve set, the motor assembly, the hydraulic pump and the single-rod symmetrical oil cylinder assembly are integrally installed. The invention can meet the use requirements of special working conditions (heavy load, large unbalance load and severe heavy industrial environment). The hydraulic pump is integrally designed and mounted, adopts a servo motor pump control closed system of an advanced digital intelligent EHA control technology, and is provided with a truncated cone spring pressure compensation oil tank, so that the hydraulic pump fully sucks oil; the electro-hydraulic actuator has the advantages of being fast in response, compact in structural layout, small in space installation range and high in reliability.

    本发明涉及一种用于AGV小车四缸同步升降的电液作动器,包括液压控制阀组、电机组件、液压泵、单出杆对称油缸组件,所述液压泵安装于液压控制阀组内部;所述电机组件连接液压泵,液压泵通过液压控制阀组连接单出杆对称油缸组件,所述液压控制阀组、电机组件、液压泵及单出杆对称油缸组件一体化集成安装。本发明能满足特殊工况(重载、偏载大、重工业环境恶劣)的使用要求。本发明的一体化设计安装,采用先进数智化EHA控制技术的伺服电机泵控闭式系统,带有截锥弹簧压力补偿油箱,使得液压泵吸油充分;电液作动器具备响应快,结构布局节凑,空间安装范围小,可靠性高的特点。


    Access

    Download


    Export, share and cite



    Title :

    Electro-hydraulic actuator for four-cylinder synchronous lifting of AGV (Automatic Guided Vehicle)


    Additional title:

    一种用于AGV小车四缸同步升降的电液作动器


    Contributors:
    GE YUGUO (author) / ZHOU HAIYONG (author) / WANG XIAOQIANG (author) / LOU SHENQI (author) / HE ZHENJIE (author)

    Publication date :

    2023-08-29


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last / F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein



    Four-cylinder synchronous hydraulic lifting mechanism

    ZHANG ZHANWEI / YU HAILI / LIU GUOFANG et al. | European Patent Office | 2023

    Free access

    Tandem synchronous hydraulic cylinder lifting device

    YU YANDONG / TANG DANDAN / CHEN WANYONG et al. | European Patent Office | 2024

    Free access

    Electro-hydraulic servo synchronous lifting mechanism

    SHI JINGSONG / YANG LIANYING / JIANG HAIBO et al. | European Patent Office | 2022

    Free access

    Hydraulic lifting platform system capable of achieving synchronous oil cylinder lifting

    LIU MIN / WU MENG / WANG YUNFEI et al. | European Patent Office | 2015

    Free access

    Lifting hydraulic oil cylinder

    WANG CHUANZHONG | European Patent Office | 2020

    Free access