The invention provides a vertical pumping unit with an anti-falling device, and relates to the technical field of petroleum machinery. The vertical pumping unit comprises bases and a steel rope, wherein racks are respectively connected to the outer walls of the opposite sides of the tops of the two bases, reverse motors are fixedly connected to both sides of the outer wall of the top of a fixed seat, balance blocks are respectively arranged in the two racks, and friction plates are fixedly connected to one end, which protrudes from the balance blocks, of two sliding seats. The friction plates,a sliding rod, a connecting block and a connecting rod form the anti-falling device, when the steel rope is broken, the balance blocks on the both sides can quickly fall, the inclined connecting rodbecomes horizontal, the friction plates are ejected by virtue of the sliding seats, the balance blocks are prevented from continuously falling by the friction between the friction plates and the innerwalls of the racks, so that the pumping unit is prevented from being damaged by the falling of the balance blocks, and the two reverse motors rotate in opposite reverse directions so as to pull a fixed pulley to reciprocate up and down, so that the workload of the reverse motors is reduced.

    本发明提供一种具有防坠装置的立式抽油机,涉及石油机械技术领域。该立式抽油机,包括底座和钢绳,所述两个底座顶部相对的一侧外壁上均固定连接有机架,所述固定座顶部外壁上两侧固定连接有反转电机,所述两个机架内部均设置有平衡块,所述两个滑动座伸出平衡块一端固定连接有摩擦片。通过摩擦片、滑动杆、连接块、连接杆组成的防坠装置,当钢绳断裂后,两侧的平衡块会快速掉落,处于倾斜状态的连接杆转化为水平状态,通过滑动座顶起摩擦片,摩擦片和机架内壁之间的摩擦阻止平衡块继续下坠,防止平衡块掉落损坏抽油机,两个反转电机相对反方向转动拉动定滑轮上下往复运动,降低了反转电机的工作负荷。


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    Title :

    Vertical pumping unit with anti-falling device


    Additional title:

    一种具有防坠装置的立式抽油机


    Contributors:

    Publication date :

    2020-11-13


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66D Haspeln , CAPSTANS / E21B EARTH OR ROCK DRILLING , Erd- oder Gesteinsbohren / F16D COUPLINGS FOR TRANSMITTING ROTATION , Nicht schaltbare Kupplungen / F16F SPRINGS , Federn



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