Gantry crane

Abstract

The invention discloses a gantry crane. The gantry crane comprises a lifting appliance system, a trolley frame and two pairs of stabilization units. A lifting winding drum is arranged on the trolley frame. Each stabilization unit comprises a stabilization winding drum, a stabilization rope, a swing pulley and a swing driving mechanism, wherein the stabilization winding drum is fixed to the liftingwinding drum and coaxially arranged with the lifting winding drum; and the stabilization rope sequentially bypasses the stabilization winding drum and the swing pulley to be steered and then is connected with the lifting appliance system. Portions, between the swing pulley and the lifting appliance system, of stabilization ropes are set as stabilization sections, the stabilization sections of thetwo paired stabilization units are located in different vertical planes, and projections of the two stabilization sections in the same X-Z plane are crossed; the swing pulleys of the two paired stabilization units are arranged at intervals in the X-axis direction, and the two pairs of stabilization sections are arranged at intervals in the Y direction; and the swing driving mechanisms are used for driving the corresponding swing pulleys to wind or unwind the ropes. The gantry crane not only can realize the functions of stabilization and lifting appliance tilting and rotation, but also has theadvantages of simple structure and low cost.

Description

technical field [0001] The invention relates to the technical field of hoisting machinery, in particular to a gantry crane. Background technique [0002] After the container ship docks, the lifting equipment on the wharf is required to efficiently unload the containers on the ship to the shore. The equipment used mainly includes shore-to-shore container gantry cranes (hereinafter referred to as quay cranes), rail-mounted container gantry cranes (hereinafter referred to as gantry cranes) and so on. When the crane loads, unloads and lifts the container, it needs to have anti-sway function to restrain the sway of the container and the spreader system; and also needs to have the tilting function, that is, the spreader system can be tilted ±3° along the direction of the trolley and tilted along the direction of the cart. The functions of ±3° and ±5° rotation in the horizontal plane are adapted to the shaking of the ship. [0003] The lifting mechanism of the quay crane is not o...

AI Technical Summary

Problems solved by technology

CN202829333U discloses a swing drive mechanism and a crane, which need to be provided with an independent drive device to drive the tilting reel, and the participation of the hoisting reel and the hoisting rope, which not only has a complex structure and high cost, but also reduces the weight of the hoisting rope. service life

But in fact, there is no economical and reasonable gantry crane with multiple functions of lifting, anti-sway, and tilting to meet this growing demand.

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