The invention provides a protection device for preventing a telescopic oil cylinder from losing stability, and belongs to the technical field of engineering machinery. The technical problem that in the telescopic process of the telescopic oil cylinder, a cylinder rod of the telescopic oil cylinder vibrates, and consequently operation of a boom system is unstable is solved. According to the technical scheme, the protection device for preventing the telescopic oil cylinder from being unstable comprises a plurality of instability prevention devices arranged on a second-section arm in a sliding and sleeving mode and a guide seat arranged on a first-section arm, the telescopic oil cylinder is connected between the lower side of the first-section arm and the lower side of the second-section arm, and a cylinder rod of the telescopic oil cylinder penetrates through the lower sides of the instability prevention devices in a sliding mode. A plurality of anti-instability devices are arranged on a cylinder rod of the telescopic oil cylinder, a guide hole is formed in each anti-instability device, and the sizes of the guide holes are gradually reduced in the direction from the tail of the two-section arm to the head of the two-section arm. And the instability risk when the cylinder rod is too long and the disturbance in the movement process are effectively reduced.

    本发明提供了一种防止伸缩油缸失稳的保护装置,属于工程机械技术领域。解决了伸缩油缸在伸缩过程中,伸缩油缸的缸杆颤动,导致臂架系统的运行不稳定的技术问题。其技术方案为:一种防止伸缩油缸失稳的保护装置,包括多个滑动套设在二节臂上的防失稳装置,以及设置在一节臂上的导向座,所述一节臂与二节臂的下侧之间连接设有伸缩油缸,所述伸缩油缸的缸杆滑动穿过多个防失稳装置下侧,每个所述防失稳装置上均设置有导向孔,从二节臂的臂尾至臂头方向,所述导向孔的尺寸逐渐减小,本发明的有益效果为:本发明通过设置在伸缩油缸的缸杆上设置多个防失稳装置,有效减少了缸杆过长时的失稳风险和在运动过程中的扰动性。


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    Title :

    Protection device for preventing telescopic oil cylinder from losing stability


    Additional title:

    一种防止伸缩油缸失稳的保护装置


    Contributors:
    YANG ZHIQIANG (author) / ZHANG YUEWEN (author) / GUO XU (author) / ZU QING (author) / LI YANG (author)

    Publication date :

    2023-12-29


    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



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