The invention discloses an eccentric loading resistant jack hydraulic oil cylinder. The eccentric loading resistant jack hydraulic oil cylinder comprises a hydraulic oil cylinder body (1), a piston rod (2), a concave spherical flange (3) and a gland (4); the piston rod (2) is arranged in an inner cavity of the hydraulic oil cylinder body (1), the top end of the piston rod (2) extends out of the hydraulic oil cylinder body (1), and a convex ball head (5) is arranged in the center of the top end of the piston rod (2); the gland (4) is arranged on the piston rod (2), a concave spherical surface (6) is formed in the center of the concave spherical flange (3), the concave spherical flange (3) is arranged on one side of the gland (4), and a closed-loop electro-hydraulic control pipeline system (7) used for controlling the pressure of the inner cavity of the hydraulic oil cylinder body (1) is arranged on one side of the hydraulic oil cylinder body (1); and a sealing element (8) in contact with the piston rod (2) is arranged at the end part of the hydraulic oil cylinder body (1). The eccentric loading resistant jack hydraulic oil cylinder is adopted, then the eccentric loading resistant capacity is enhanced, and the situation that the jack is damaged due to the fact that the stress of the jack is not in the center is effectively avoided.

    本发明公开了一种抗偏载千斤顶液压油缸,它包括液压油缸体(1)、活塞杆(2)、凹球面法兰(3)以及压盖(4),所述活塞杆(2)设置于液压油缸体(1)内腔中,该活塞杆(2)顶端伸出液压油缸体(1)外,且活塞杆(2)顶端中心设置有凸球头(5),所述压盖(4)设置于活塞杆(2)上,所述凹球面法兰(3)中心开设有凹球面(6),所述凹球面法兰(3)设置于压盖(4)一侧,所述液压油缸体(1)一侧设置有用于控制液压油缸体(1)内腔压力的闭环电液控制管路系统(7),所述液压油缸体(1)端部设置有与活塞杆(2)相接触的密封件(8)。本发明采用抗偏载千斤顶液压油缸,增强了抗偏载的能力,有效地避免千斤顶因受力不在中心上而损坏千斤顶的情况发生。


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    Title :

    Eccentric loading resistant jack hydraulic oil cylinder


    Additional title:

    一种抗偏载千斤顶液压油缸


    Contributors:
    DING KEFANG (author) / SHEN YU (author) / WU DONGSHENG (author) / DING LI (author)

    Publication date :

    2020-05-08


    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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