The invention discloses an oil cylinder self-locking system, engineering machinery and a control method.The oil cylinder self-locking system comprises an oil cylinder, a self-locking nut and a self-locking driving device, the self-locking nut is in threaded fit with an external thread section of a piston rod and located outside an oil cylinder cover, and the self-locking driving device is in transmission connection with the self-locking nut; the self-locking nut can be driven to rotate on the piston rod at the rotating speed and the rotating direction matched with the extending or retracting speed of the piston rod by controlling the self-locking driving device in the extending or retracting process of the oil cylinder, and therefore the state that the self-locking nut is attached to the outer end face of the cylinder cover is kept. The problem of self-locking in the dynamic adjusting process of the piston rod of the oil cylinder is solved, and the working safety and reliability of the oil cylinder, especially the oil cylinder on the heavy-load application occasion of engineering machinery, are improved.

    本发明公开了一种油缸自锁系统、工程机械和控制方法,其包括油缸、自锁螺母、以及自锁驱动装置,所述自锁螺母与活塞杆的外螺纹段螺纹配合且位于油缸缸盖的外部,所述自锁驱动装置与自锁螺母传动连接,以能够在油缸伸出和缩回过程中通过控制自锁驱动装置,驱动该自锁螺母以与活塞杆伸出或缩回速度相匹配的旋转速度和旋转方向在活塞杆旋转,从而保持贴靠缸盖外端面的状态。本发明解决了油缸活塞杆的动态调节过程中的自锁难题,使得油缸、尤其工程机械上重负载应用场合下油缸的工作安全性和可靠性。


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    Titel :

    Oil cylinder self-locking system, engineering machinery and oil cylinder telescopic self-locking cooperative control method


    Weitere Titelangaben:

    油缸自锁系统、工程机械和油缸伸缩自锁协同控制方法


    Beteiligte:
    YU LEKANG (Autor:in) / WEI SUFEN (Autor:in) / XU HUI (Autor:in) / GUAN JINJUN (Autor:in)

    Erscheinungsdatum :

    2023-01-03


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

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



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