The invention provides an adjustable ultrahigh-pressure stacked interactive overflow valve for jack action. The adjustable ultrahigh-pressure stacked interactive overflow valve comprises a valve body, a steel ball, a positioning plate, a pressure adjusting spring, a pressing plate, a pressure adjusting lead screw and a plugging nut. Wherein the valve body is designed to be in a standard stacked installation form and is provided with A, B, P and T through hole oil ducts, bypass oil ducts are formed in the side faces A and B of the oil ducts, and an inclined hole is formed in the T through hole oil duct to be communicated with the side faces A and B through oil; the positioning plate is provided with a spherical groove for nesting the steel ball, the other side of the positioning plate is provided with a limiting step, two ends of the pressure adjusting spring abut against the positioning plate limiting step and the pressing plate limiting step respectively, and a through channel is formed in the middle of the pressing plate. The pressure regulating screw rod is installed in the valve body in a threaded mode and abuts against the pressing plate, and the plugging nut is installed on the exposed portion of the pressure regulating screw rod. Respective pressure limiting adjustment can be carried out on ultrahigh-pressure hydraulic oil flowing through the oil ducts A and B of the valve body, lifting and descending pressure safety limiting of the jack is guaranteed, and equipment safety and service life are guaranteed.

    本发明提出了一种用于千斤顶动作的可调节超高压叠加式交互溢流阀,包括阀体、钢珠、定位板、调压弹簧、压板、调压丝杆,封堵螺母。其中阀体设计为标准叠加式安装形式,阀体设置A、B、P、T通孔油道,其中油道A、B侧面开旁通油道,T通孔油道开斜孔与A、B侧面通油贯通;钢珠置于A、B旁通油道内,定位板设置球形凹槽嵌套钢珠另一侧设置限位台阶,调压弹簧两端分别与定位板限位台阶和压板限位台阶相抵持,压板中间设置贯通通道;调压丝杆螺纹装入阀体并顶压压板,封堵螺母安装于调压丝杆螺外漏部分。本发明可以实现对流经阀体A、B油道的超高压液压油进行各自压力限制调节,保证千斤顶上升和下降压力安全限制,保证设备安全及寿命。


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    Titel :

    Adjustable ultrahigh-pressure stacked interactive overflow valve for jack action


    Weitere Titelangaben:

    一种用于千斤顶动作的可调节超高压叠加式交互溢流阀


    Beteiligte:
    CHENG HAIHUA (Autor:in) / LIAO JIEHONG (Autor:in) / LI WENCHENG (Autor:in)

    Erscheinungsdatum :

    2023-05-16


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein / 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 / F16K VALVES , Ventile



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