Gantry crane with high stability for bridge construction

Abstract

The invention relates to a gantry crane with the high stability for bridge construction. The gantry crane with the high stability for bridge construction comprises a cross beam, a translation block, aprocessor, a lifting mechanism, a translation mechanism, a flat plate, a lifting hook, a connecting mechanism and two supporting columns, the lifting mechanism comprises a driving assembly and four lifting assemblies, and each lifting assembly comprises a driven bevel gear, a rotating shaft, a wire coil, a steel wire rope and two supporting units; and the connecting mechanism comprises a liftingplate, two sliding rings and four connecting assemblies, and each connecting assembly comprises a connecting block, a fastening unit and two rolling wheels. The gantry crane with the high stability for bridge construction achieves safe lifting movement of the flat plate and the lifting hook through tightening or loosening of four steel wire ropes in the lifting mechanism, and the goods are prevented from falling off and the safety accident is prevented; and in addition, the connecting block can move along the axes of the supporting columns through the connecting mechanism, the connecting blockcan be fixed to the lifting plate, the situation that the goods are blown by wind to shake in the transportation process is avoided, the transportation stability is guaranteed, and the practicabilityof the equipment is improved.

Description

technical field [0001] The invention relates to the field of bridge construction, in particular to a gantry crane with high stability used for bridge construction. Background technique [0002] The gantry crane is a deformation of the bridge crane, referred to as the gantry crane, which is mainly used for loading and unloading of outdoor cargo yards, stockyards and bulk cargo. The gantry crane has the characteristics of high site utilization, large operating range, wide adaptability and general purpose Strong performance and other characteristics, it has been widely used in port cargo yards and bridge construction sites. [0003] When the existing gantry cranes are transported, they mainly rely on the hook to hook the goods, and then the hoist tightens or loosens the rope to drive the hook and the goods to go up and down, and by adjusting the horizontal position of the hoist, the transportation position of the goods is adjusted. During the process, because the equipment is ...

AI Technical Summary

Problems solved by technology

[0003] When the existing gantry cranes are transported, they mainly rely on the hook to hook the goods, and then the hoist tightens or loosens the rope to drive the hook and the goods to go up and down, and by adjusting the horizontal position of the hoist, the transportation position of the goods is adjusted. During the process, because the equipment is running outdoors and affected by the external environment, when the wind is strong, it is easy to blow the goods on the hook, causing the goods to shake and affecting the stability of transportation. Not only that, the gantry crane relies on a single wire rope to hang When lifting the hook and the heavy objects under the hook, when the steel wire rope ages, it is easy to break suddenly, causing the goods to fall to the ground, which may cause safety accidents while damaging the goods, and reduce the practicability of the existing gantry cranes.

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