The invention relates to the technical field of hydraulic machinery, in particular to a hydraulic control method and system for turning of a vehicle-mounted tail ladder, and the method realizes speed reduction of a mechanism at a stroke end point through hydraulic buffering, so that the movement process of the mechanism from fast to slow and then stopping is realized, the impact and noise at the stroke end point of the mechanism are eliminated, and when an oil cylinder is pushed out from a starting position, the oil cylinder is pushed out. Oil entering from an oil port of a rodless cavity can burst through the buffer disc, extension of a piston of the oil cylinder is not affected by buffering, and for one-way buffering of retraction, one-way buffering is designed in the oil cylinder, and an unloading oil way is designed on an external valve group, so that the effects of ground contact automatic unloading when the tail ladder is opened and automatic speed reduction when the tail ladder is closed can be achieved on the oil way; the stop impact of a mechanism stroke end point is eliminated, and the technical problems that when an existing tail ladder is opened, acting force from the ground can be borne, the leveling effect of a vehicle is affected, and when the tail ladder is closed, the tail ladder collides with a compartment, and the structural safety can be affected are solved.

    本发明涉及液压机械技术领域,具体涉及一种车载尾梯翻转的液压控制方法及系统,该方法通过液压缓冲实现机构在行程终点减速,从而实现机构由快到慢再停的运动过程,消除机构行程终点的冲击和噪音,且在油缸从起始位置推出时,从无杆腔油口处进入的油液可冲开缓冲盘,使油缸的活塞伸出不受缓冲影响,为缩回单向缓冲,通过在油缸内部设计单向缓冲,在外部阀组设计卸荷油路,从而可从油路上实现了尾梯在开启时的触地自动卸荷、在关闭时自动减速的效果,消除了机构行程终点的停机冲击,解决了现有的尾梯在开启时,会受到来自地面的作用力,并影响车辆的调平效果,以及在关闭时,尾梯与车厢撞击,会影响结构安全的技术问题。


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    Titel :

    Hydraulic control method and system for overturning of vehicle-mounted tail ladder


    Weitere Titelangaben:

    一种车载尾梯翻转的液压控制方法及系统


    Beteiligte:
    DUAN TONG (Autor:in) / XIAO WEI (Autor:in) / WEI SHUDONG (Autor:in) / JIANG MING (Autor:in)

    Erscheinungsdatum :

    18.04.2025


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein



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