The invention discloses a lorry-mounted crane rotary cylinder buffering device, a hydraulic system and a control method of the lorry-mounted crane rotary cylinder buffering device. Comprising a hydraulic oil cylinder body, a hydraulic oil cylinder cover, a damping plug arranged on the hydraulic oil cylinder cover, a piston located in the hydraulic oil cylinder body, a piston stroke adjusting block located in the hydraulic oil cylinder body and detachably connected with the piston, a hydraulic oil cylinder bottom and a low-pressure two-way overflow valve arranged on the hydraulic oil cylinder bottom, and working oil ports B1 to B6 are formed. The damping plug, the low-pressure two-way overflow valve and the piston stroke adjusting block are arranged in the hydraulic oil cylinder, when a piston of the buffering oil cylinder moves, variable liquid volume is generated, and buffering and throttling control is achieved by adjusting the hole diameter of a throttling hole of the damping plug, the set pressure of the low-pressure two-way overflow valve and parameters of the piston stroke adjusting block.

    本发明公开了一种随车起重机回转缸缓冲装置、液压系统及其控制方法,包括液压油缸缸体、液压油缸缸盖、设置于油缸缸盖上的阻尼塞、位于液压油缸缸体内的活塞、位于液压油缸缸体内且与活塞可拆卸连接的活塞行程调节块、液压油缸缸底以及设置于油缸缸底上的低压双向溢流阀,并形成工作油口B1~工作油口B6。本发明在液压油缸内内置阻尼塞、低压双向溢流阀、活塞行程调节块,当缓冲油缸活塞移动时产生可变液容,通过对阻尼塞的节流孔孔径、低压双向溢流阀设定压力、活塞行程调节块参数的调整,实现缓冲节流控制。


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    Title :

    Revolving cylinder buffer device of lorry-mounted crane, hydraulic system and control method of hydraulic system


    Additional title:

    随车起重机回转缸缓冲装置、液压系统及其控制方法


    Contributors:
    SHANG XIAOHENG (author) / CHEN LEI (author) / REN LUYAO (author) / LI TAO (author) / YU XUAN (author) / XIAO YANFENG (author)

    Publication date :

    2023-03-14


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES / F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein



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