The invention discloses a leveling landing leg oil cylinder mechanism, a hydraulic unit and engineering machinery, the leveling landing leg oil cylinder mechanism comprises a leveling landing leg oil cylinder and a connecting block with a spherical groove, a ball head is arranged at the extending end of a piston rod of the leveling landing leg oil cylinder, the diameter of the ball head is larger than that of the piston rod, and the ball head is installed in the spherical groove in a matched mode and is provided with a protruding spherical part. The connecting block is connected with the limiting cover plate, and the limiting cover plate is provided with a concave spherical surface hole matched with the protruding spherical part, so that the concave spherical surface hole in the limiting cover plate is matched with the spherical surface of the protruding spherical part and connected with and limits the ball head. According to the leveling supporting leg oil cylinder mechanism, through special structure matching among the ball head, the connecting block and the limiting cover plate, the leveling supporting leg oil cylinder mechanism not only can bear pressure, but also can bear tensile force, the installation mode and the installation sequence are improved, the installation work is effectively simplified, and installation is more convenient and easier.

    本发明公开了一种调平支腿油缸机构、液压单元和工程机械,其包括调平支腿油缸和形成有球形凹槽的连接块,所述调平支腿油缸的活塞杆的伸出端设有球头,该球头的直径大于活塞杆的直径,且安装配合到球形凹槽内并具有凸出球形部,所述连接块与限位盖板连接,所述限位盖板上具有与凸出球形部配合的凹球面孔,从而限位盖板上的凹球面孔与凸出球形部的球面配合并连接限位所述球头。本发明通过球头、连接块、限位盖板之间的特殊结构配合,使得该调平支腿油缸机构既能承受压力、又能承受拉力,并且改善了安装方式和安装顺序,其有效地简化了安装工作,使得安装更加便利容易。


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    Title :

    Leveling support oil cylinder mechanism, leveling support oil cylinder hydraulic unit and engineering machinery


    Additional title:

    调平支腿油缸机构、调平支腿油缸液压单元和工程机械


    Contributors:
    YU LEKANG (author) / WEI SUFEN (author) / XU HUI (author) / GUAN JINJUN (author)

    Publication date :

    2023-03-07


    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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