The invention relates to the field of engineering machinery, and discloses a single-cylinder bolt hydraulic control system, a telescopic arm and a crane, the single-cylinder bolt hydraulic control system comprises a telescopic oil cylinder, a cylinder pin oil cylinder and an arm pin oil cylinder, the telescopic oil cylinder is provided with a core tube, the single-cylinder bolt hydraulic control system further comprises an oil supply path and an oil return path, the oil supply way selectively communicates with a rod cavity or a rodless cavity of the telescopic oil cylinder and is used for outputting hydraulic oil in the rod cavity or the rodless cavity of the telescopic oil cylinder to the cylinder pin oil cylinder or the arm pin oil cylinder, and the oil return way communicates with the core pipe and is used for recovering hydraulic oil of the cylinder pin oil cylinder or the arm pin oil cylinder to the core pipe. According to the telescopic oil cylinder, the stability and reliability of the core pipe structure are greatly improved, and then the service life of the telescopic oil cylinder is prolonged. In addition, the whole single-cylinder bolt hydraulic control system can achieve normal work of the telescopic oil cylinder, the cylinder pin oil cylinder and the arm pin oil cylinder only through one oil source, and the structure is simpler.

    本发明涉及工程机械领域,公开了一种单缸插销液压控制系统、伸缩臂及起重机,单缸插销液压控制系统包括伸缩油缸、缸销油缸以及臂销油缸,伸缩油缸设置有芯管,单缸插销液压控制系统还包括供油油路和回油油路,供油油路可选择地与伸缩油缸的有杆腔或无杆腔连通,用于将伸缩油缸的有杆腔或无杆腔内的液压油输出至缸销油缸或臂销油缸,回油油路与芯管连通,用于将缸销油缸或臂销油缸的液压油回收至芯管。本发明极大地提高了芯管结构的稳定性和可靠性,继而提高了伸缩油缸的使用寿命。此外,整个单缸插销液压控制系统仅需要采用一个油源即可实现伸缩油缸、缸销油缸以及臂销油缸的正常工作,结构更为简洁。


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    Title :

    Single-cylinder bolt hydraulic control system, telescopic arm and crane


    Additional title:

    单缸插销液压控制系统、伸缩臂及起重机


    Contributors:
    LUO XIANZHI (author) / HU TINGJIANG (author) / CHEN JIA (author) / LEE YOUNG JI (author) / LI HUAIFU (author) / ZHAO JIANYANG (author)

    Publication date :

    2022-09-16


    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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