Hoisting tool and hoisting method for column component

Abstract

The invention relates to a lifting construction method of a large component, in particular to a lifting rig and a lifting method of a large upright column component, wherein, the lifting rig is provided with fixed pulleys respectively installed at the two ends of a lifting crossbeam, two ropes respectively roll around the fixed pulleys, and two ends of each rope are respectively provided with a pulley; the method is as follows: a main hook is connected with the lifting rig of the upright column component, and connected with the upright column component through the two fixed pulleys and four ropes rolling around the four pulleys and used for lifting on the lifting rig of the upright column component, an assisted hook is connected with an assisted suspension cable fixed at the bottom of theupright column component, and during the synchronous lifting course of the main hook and the assisted hook, the upright column component automatically turns over to be vertical to the ground from a horizontal position. The technical proposal is particularly suitable for the lifting of the large component and has the characteristics of fast construction speed and less safety risk.

Description

technical field [0001] The invention relates to a hoisting construction method of a large component, in particular to a hoisting machine tool and a hoisting method of a large column component. Background technique [0002] The outdoor power distribution device in the industrial factory building or substation project composed of large structural parts, its components are assembled on the ground and then hoisted as a whole. During the hoisting process, the hoisting of the column needs to be lifted horizontally and rotated 90 degrees in the air. After being in a vertical state, it is connected with the column foundation. At present, for the hoisting of large-scale columns, six lifting points are generally used for hoisting as a whole. Only four main lifting points are set on one side of the column, and the main crane is used for lifting. The two auxiliary lifting points are assisted by the auxiliary crane to lift the column. After positioning, the rope of the auxiliary lifting...

AI Technical Summary

Problems solved by technology

At present, for the hoisting of large-scale columns, six lifting points are generally used for hoisting as a whole. Only four main lifting points are set on one side of the column, and the main crane is used for lifting. The two auxiliary lifting points are assisted by the auxiliary crane to lift the column. After positioning, the rope of the auxiliary lifting point is released, and the column is manually turned over in the air, which results in: 1. The column frame cannot be completely vertical, which is not conducive to the installation of the column frame in the foundation cup; 2. For For steel structural members, the column rods are prone to deformation; 3. Manual reversal is time-consuming and unsafe

If segmented hoisting is used, the construction speed is slow, and construction personnel are required to carry out construction and installation at the connection of high-altitude components, which poses a high safety risk

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