Small rotating arm type electric hoister suitable for transferring materials between reverse building method floors

Abstract

The invention relates to a small rotating arm type electric hoister suitable for transferring materials between reverse building method floors. The electric hoister comprises a limiting mounting module with a hoop piece, a limiting assembly base served by an U type connecting bracket, a right triangle cantilever module consisting of a limiting mounting arm, a crane cross beam and a lifting arm truss beam, a deflection driving control mechanism containing a swing motor and a steering gear, and an electric hoisting mechanism provided with a lifting hook and a pulley. The hoister is totally suspended and tightened on a vertical support column of a soil taking port by the limiting mounting module; the cantilever module is controlled to deflect as needed, and the electric hoister is displaced in and out as needed on a guide rail and vertically lifted up and down to realize up lifting of bottom-layer materials for deflected placement on this floor; and the materials on this floor are liftedfor deflection to descend to a lower floor by the soil taking port, so that the quick and safe transfer of the materials between the floors in underground narrow space is smoothly realized, and the difficulties of no proper lifting machinery in a traditional reverse building method and barrier in popularization and application are solved in a pioneering mode.

Description

technical field [0001] The invention relates to the technical field of infrastructure construction facilities, in particular to a small rotary that is suitable for transferring materials between floors in reverse construction, helps to improve transfer efficiency, relieves the use pressure of the positive and negative zero-floor sites, and ensures construction safety and management. Boom electric lift. Background technique [0002] The upside-down method is a new foundation pit construction technology that has come out in recent years and is suitable for the construction of underground multi-storey structures in high-rise buildings. Enclosure and foundation construction support structure, under the support of the horizontal support system and enclosure system in the pit, the construction of the closed basement structure is carried out from top to bottom. Because it can be constructed simultaneously with the superstructure of high-rise buildings without interfering with each...

AI Technical Summary

Problems solved by technology

At present, although the reverse construction method has demonstrated certain technical advantages and has been gradually promoted, it is still in its infancy and faces many new technical difficulties that need to be explored and solved

Especially in terms of supporting facilities, there is currently no lifting machine suitable for material transfer in a small underground space. Therefore, conventional tower cranes or truck cranes are generally used for ground construction. Due to their relatively large volume, it is difficult to obtain soil. In the narrow space with limited opening size and floor height, unobstructed, fast and safe material transfer operations are carried out between the positive and negative zero-floor sites and the bottom working surface layer site, so the resource utilization rate is very low, the transfer efficiency is very low, and the on-site The accumulation of materials is serious, resulting in a long construction period, high construction costs, and hidden safety hazards. Therefore, from an economic point of view, it is not ideal

Therefore, the lack of suitable material lifting machinery has become a major difficulty in the popularization and application of the reverse method. Therefore, it is necessary to research and develop a small machine that is suitable for efficient, fast and safe transfer of materials between floors in the special environment of reverse method construction. lifting device

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