Device for stabilizing ropes of man-carrying lifting cage in vertical shaft excavating period and application method

Abstract

The invention provides a device for stabilizing ropes of a man-carrying lifting cage in a vertical shaft excavating period and an application method. The device is characterized in that a portal frame is arranged at an upper port of an opened vertical shaft during the secondary expansion excavation of the vertical shaft, wherein a cross beam of the portal frame is provided with a large fixed pulley as a positioning device of the lifting cage; movable pulleys I are arranged at two sides of the large fixed pulley; the lifting cage is connected with an electric winch as a power lifting device; two stabilizing rings are arranged at each of two sides of the lifting cage; the lifting cage is suspended to the cross beam of the portal frame at a mouth of the vertical shaft through steel wire ropes; a stabilizing plate is arranged at the bottom part of the lifting cage; two small fixed pulleys II are symmetrically welded on the stabilizing plate; the steel wire ropes pass through the two small fixed pulleys II, and the other one of the ends of the steel wire ropes is connected through hooks and then is welded and fixed to the cross beam of the portal frame. With the adoption of the device, the problem of rotating and swinging which occur when the man-carrying lifting cage moves up and down in the vertical shaft excavating period can be solved; the safety of people getting on or getting off the lifting cage can be reduced; the construction period can be decreased, and the construction progress is accelerated.

Description

technical field [0001] The invention relates to the technical field of water conservancy and hydropower engineering, in particular to a manned cage rope stabilization device and an application method during shaft excavation. Background technique [0002] There are various functional or structural shafts in the construction of water conservancy and hydropower projects, such as ventilation shafts, exhaust shafts, gate wells, surge shafts, water diversion shafts, outlet shafts, etc. With the maturity and development of water conservancy and hydropower engineering construction technology, the current Most shaft excavators go up and down, shallow ones are directly set up vertical climbing ladders, and deep ones are generally set up with simple manned cages, adding counterweights and anti-rotation steel wire ropes (left and right twisted) on the cages to reduce swings and rotations, This greatly increases the safety risk of personnel falling up and down at the construction site. ...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a manned cage rope stabilizing device and application method during the excavation of a shaft, which solves the problem that the manned hoisting cage cannot be fixed or the operation is complicated after being fixed during the construction process of the full section of the shaft, and reduces the Safety risks for people getting on and off the construction site

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