The invention discloses a push-pull chain jacking mechanism driven by a screw and a nut. The push-pull chain jacking mechanism comprises a push-pull chain combination part, a guide box combination part, a horizontal guide rail combination part, a screw drive system and a transverse pull frame driving nut part; a motor drives the screw to rotate after the speed of the motor is reduced through a speed reducer; the screw drives a transverse pull frame to move horizontally through a driving nut; a push connecting pin on the transverse pull frame pushes a push-pull chain to move horizontally; the push-pull chain extends upwards out of a guide box, so that a load can be jacked to move upwards. The push-pull chain is restricted to move along a straight line only by horizontal guide rails. The push-pull chain jacking mechanism has the benefits that 1, a horizontal pushing force is converted into a lifting jacking force, so that the height of equipment is reduced to the maximum extent; 2, the horizontal pushing force is provided by the screw and the nut, and a self-locking function is realized, so that a lifting table surface stops at any position stably and cannot slide down all the time, the position is not maintained by a brake, and the security of the equipment is improved; 3, the push-pull chain is not driven by a chain wheel, so that the push-pull chain works stably, and the noise is minimized; 4, the manufacturability is high, the precision is easy to guarantee, and the cost is relatively low.


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    Title :

    Push-pull chain jacking mechanism driven by screw and nut


    Contributors:
    WEI FAKONG (author) / LIU MINGQIANG (author) / LIU QINGJUN (author)

    Publication date :

    2015-04-29


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    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



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