Lifting anti-rolling device for container gantry crane

Abstract

The invention discloses a lifting anti-rolling device for a container gantry crane. The lifting anti-rolling device comprises a hanger, a hanger upper frame arranged on the top end surface of the hanger and a crane arranged above the hanger upper frame, wherein a winding drum is arranged on the center of the top end of the crane; four steel wire ropes are wound on the winding drum; two first slide wheels are arranged at each of the two sides of the top end of the crane; two electric push rods are arranged at the bottom end of the crane; the two electric push rods are oppositely arranged; a steel wire rope fixing part is arranged on each electric push rod; second slide wheels are arranged on four top corners at the top end of the hanger upper frame; each second slide wheel is arranged in an inclined mode; the four second slide wheels are in one-to-one correspondence with four first slide wheels; and the trend of each steel wire rope is along the winding drum, the first slide wheels, the second slide wheels opposite to the first slide wheels, and the steel wire rope fixing parts of the electric push rods. According to the lifting anti-rolling device, needs on output torque of a speed reducer are reduced, rigid impact on a crane steel frame is reduced, and the service life of the crane is prolonged.

Description

Technical field [0001] The invention relates to a container gantry crane, in particular to a lifting and anti-sway device of a container gantry crane. Background technique [0002] At present, most of the lifting mechanisms of container cranes adopt an inverted eight-rope anti-rolling system. For example, the patent application number 200920076172.1 discloses an eight-rope spreader for a container crane, which includes a rack base and two left and right translation drives. Components, two forward and backward translation driving components and a cable storage basket, which are arranged on the upper frame base. The spreader upper frame also includes four lifting point mobile frame components corresponding to two left and right translational driving parts and two front and rear translational driving parts. Each lifting point mobile frame assembly is connected with the steel wire rope of the container crane, including guide rails and The movable frame for the movement of the guide ...

AI Technical Summary

Problems solved by technology

However, it has the following disadvantages: due to the large angle when the single-rate rope speed and the lifting height are high, the output torque of the reducer required by the anti-rolling system is relatively large; the potential energy of the inverted figure-of-eight anti-rolling system is directly borne by the rigid system, so The impact inertia on the crane frame is large during anti-rolling; the demand for the pulleys of the inverted figure-of-eight anti-rolling system is large, and it is difficult to debug and maintain

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