Method for installing bridge crane using load-supporting roof beam for hoisting and usage thereof

Abstract

The invention relates to a method for installing a bridge crane using load-supporting roof beams for hoisting and usage thereof. The invention is characterized in that: hoisting points are arranged on roof beams of a workshop, components of the bridge crane are assembled on the ground on site, and hoists and specified suspenders are used for hoisting the bridge crane; the method mainly comprises the steps of arranging of load-supporting beams for hoisting, hoists and hoisting points, fabrication of the specified suspenders, arranging of assembly pulleys and wire ropes, assembly of the bridge crane on the ground, hoisting of bridge stands of the bridge crane, hoisting of main and assistant trolleys of the bridge crane and installation of the wire ropes and the suspenders. According to the invention, site requirements are low, finished roofing of the workshop does not need to be dismounted, no giant crane is utilized, and facilities purchased and suspenders fabricated at a time can be used repeatedly, thereby saving cost; lifting and suspending with two cranes are avoided, thereby reducing safety risks; components are assembled in place on the ground and hoisted at a time, thereby improving working efficiency and abating risks in high altitude construction; time for actual hoisting is short and operationality is strong; the method is applicable to installation of large and medium-sized bridge cranes without being influenced by sites or hoisting height.

Description

technical field [0001] The invention relates to an installation method of a bridge crane, in particular to a method for installing a large and medium-sized bridge crane by using a load-bearing beam in cooperation with a winch and the application of the method. Background technique [0002] The traditional installation method of large and medium-sized bridge cranes is to use large hydraulic cranes (or crawler cranes) for single-machine hoisting or double-machine hoisting. During hoisting, the site is required to be flat and wide, which is convenient for the crane station, and the safety risk of hoisting is high. At the same time, limited by the lifting height and lifting weight, the weight of a single piece lifted by the bridge crane is limited, which increases the number of hoisting and high-altitude operations. In addition, the roof structure needs to be removed to meet the hoisting requirements, which affects the installation progress of the plant structure. Since large-sc...

AI Technical Summary

Problems solved by technology

[0002] The traditional installation method of large and medium-sized bridge cranes is to use large hydraulic cranes (or crawler cranes) for single-machine hoisting or double-machine hoisting. When hoisting, the site is required to be flat and wide, which is convenient for the crane station, and the safety risk of hoisting is high.

At the same time, limited by the lifting height and lifting weight, the weight of a single piece lifted by the bridge crane is limited, which increases the number of hoisting and high-altitude operation time. In addition, the roof structure needs to be removed to meet the hoisting requirements, which affects the installation progress of the plant structure.

Since large-scale hydraulic cranes (or crawler cranes) are used for hoisting, a wide station parking space is required, and large equipment transported to the site cannot be placed in a centralized manner. It is necessary to hoist one piece and transport one piece at a time, which increases a lot of transportation work

The deployment and use of large-scale hoisting cranes, the unloading of equipment, and the demolition of roofs all require a lot of investment and increase costs.

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