Self-elevating lifting device and lifting method of a quay bridge

Abstract

The invention discloses a self-elevating lifting device for a quay crane. The self-elevating lifting device comprises door frame structures, cantilever beams, fixed pulley sets, movable pulley sets, an upper beam structure and winches. The two door frame structures are arranged in parallel. The corresponding cantilever beams are arranged on the top of each door frame structure. The fixed pulley sets are arranged on the cantilever beams. The upper beam structure is arranged between the two door frame structures. The two ends of the upper beam structure are each provided with the corresponding movable pulley sets. The upper beam structure is drawn by steel wire ropes sequentially penetrating the fixed pulley sets and the movable pulley sets. One ends of the steel wire ropes are fixed to the cantilever beams, and the other ends of the steel wire ropes are connected with the winches installed on the ground. A quay crane upper layer structure is arranged at the bottom of the upper beam mechanism. The self-elevating installation of the quay crane is achieved through structural components of the quay crane itself and winch systems, independent control over four hanging points is achieved, out-of-level in the front-back direction and the left-right direction in the installation process of the quay crane upper layer structure is eliminated, and it is ensured that the quay crane upper layer structure is stably and horizontally lifted and installed in place.

Description

technical field [0001] The invention relates to a self-elevating lifting device and a lifting method of a shore bridge. Background technique [0002] With the rapid development of the country and the world economy, the port machinery industry is showing a booming scene of prosperity. As the main force of port equipment, quayside cranes are developing towards inland ports and large-scale; [0003] The installation of traditional quay cranes generally uses large-scale lifting equipment such as floating cranes for hoisting, and then transports the whole machine to the port wharf in the form of roll-on-roll-on-ship; [0004] When inland wharves purchase quay crane equipment, they are often limited by the height limit of the bridge. The quay bridge equipment needs to be fabricated in pieces and assembled on site. Large-scale floating cranes need to be hired on site for hoisting, which is greatly affected by the water level of the river during the flood season. When foreign wharfs...

AI Technical Summary

Problems solved by technology

[0004] When inland wharves purchase quay crane equipment, they are often limited by the height limit of the bridge. The quay bridge equipment needs to be fabricated in pieces and assembled on site. Large-scale floating cranes need to be hired on site for hoisting, which is greatly affected by the water level of the river during the flood season. When foreign wharfs purchase quay bridge equipment , is often restricted by the passage of canals, and the whole machine detours around Africa, etc., increasing the voyage distance and resulting in increased costs;

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