The invention relates to the field of hydraulic devices, and discloses an oil cylinder, a multi-oil-cylinder synchronous control system, a control method and a crane. The oil cylinder comprises a cylinder body, a piston assembly and a pull rope encoder, wherein the piston assembly and the pull rope encoder are slidably mounted in the cylinder body, the pull rope encoder comprises a machine body and a pull rope capable of extending or retracting relative to the machine body, the machine body is mounted on one of the cylinder bottom of the cylinder body and the piston end, opposite to the cylinder bottom, of the piston assembly, and the pull rope extends in the cylinder body and is connected to the other one of the cylinder bottom and the piston end at the free end. The oil cylinder with thebuilt-in pull rope encoder is compact in structure and convenient to mount and use, the displacement of the oil cylinder can be conveniently measured in the working process of the oil cylinder, and the measurement precision and reliability are high.

    本发明涉及液压装置领域,公开了一种油缸、多油缸同步控制系统、控制方法及起重机,所述油缸包括缸体和滑动安装于该缸体内的活塞组件以及拉绳编码器,所述拉绳编码器包括机身和能够相对该机身伸出或缩回的拉绳,所述机身安装于所述缸体的缸底和所述活塞组件的与该缸底相对的活塞端中的一者上,所述拉绳在所述缸体内延伸并在自由端连接至所述缸底和所述活塞端中的另一者。本发明的内置拉绳编码器的油缸,结构紧凑,安装和使用方便,在油缸工作过程中,能够方便地测量油缸的位移,测量精度和可靠性高。


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    Title :

    Oil cylinder, multi-oil-cylinder synchronous control system, control method and crane


    Additional title:

    油缸、多油缸同步控制系统、控制方法及起重机


    Contributors:
    SHI LANFANG (author) / GUO JIMEI (author) / LI HUAIFU (author) / LI XIAOFEI (author)

    Publication date :

    2021-03-16


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

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




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