The invention provides a hydraulic supporting leg stretching control loop and method, the hydraulic supporting leg stretching control loop comprises an electric control power unit, a tractor power source, a control valve set and a supporting leg execution device, the control valve set comprises a first pilot-operated overflow valve and a plurality of electromagnetic reversing valves, the first pilot-operated overflow valve and the electromagnetic reversing valves are connected in parallel, and the first pilot-operated overflow valve and the electromagnetic reversing valves are connected in parallel. The first pilot-operated overflow valve is used for controlling pressure building and unloading of the valve bank; the electric control power unit is communicated with the supporting leg executing device through the control valve group; and the tractor power source is communicated with the supporting leg executing device. The electric control power unit is arranged on the semitrailer, a direct-current power source is adopted to drive the landing leg executing device to stretch out and draw back, and the tractor power source is arranged on the tractor. When the supporting leg executing device needs to be accelerated to stretch out and draw back, the hydraulic oil transported by the tractor power source and the hydraulic oil driven by the electric control power unit are converged and then enter the supporting leg executing device together, so that the flow circulation in the supporting leg executing device is increased, and the operation is safer and more reliable.

    本发明提供一种液压支腿伸缩控制回路及控制方法,包括电控动力单元、牵引车动力源、控制阀组、以及支腿执行装置,控制阀组包括第一先导式溢流阀、以及若干个电磁换向阀,所述第一先导式溢流阀、若干个电磁换向阀并联连接,第一先导式溢流阀用于控制阀组的建压与卸荷;电控动力单元通过控制阀组与支腿执行装置连通;所述牵引车动力源与支腿执行装置连通。本发明中电控动力单元设置在半挂车上,采用直流电源驱动支腿执行装置的伸缩,牵引车动力源设置在牵引车上。当支腿执行装置需要加速伸缩时,牵引车动力源运输液压油与电控动力单元驱动的液压油汇合后,一同进入到支腿执行装置中,增大了支腿执行装置中的流量循环,运行更安全,更可靠。


    Access

    Download


    Export, share and cite



    Title :

    Hydraulic supporting leg stretching and retracting control loop and control method


    Additional title:

    一种液压支腿伸缩控制回路及控制方法


    Contributors:
    LI FUSHENG (author) / WU JIN (author) / LI LIMIN (author) / YANG JUN (author) / LI LEI (author)

    Publication date :

    2023-10-10


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein / B60S SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR , Warten, Reinigen, Instandsetzen, Unterstützen, Anheben oder Rangieren von Fahrzeugen, soweit nicht anderweitig vorgesehen



    Stretching and retracting device for recreational vehicle

    LAI GANMING | European Patent Office | 2016

    Free access

    Vehicle display screen retracting and stretching structure

    LU PAN / LIN JIANWEI | European Patent Office | 2016

    Free access

    Charging pile with cable stretching and retracting function

    ZHOU LI | European Patent Office | 2022

    Free access

    WEBBING RETRACTING CONTROL DEVICE

    NAGATA YUYA / UMAGOE TOMOYA / SAITO TAKUHIRO et al. | European Patent Office | 2017

    Free access