Root distance control device

Abstract

The invention belongs to the technical field of installation of substation (converter) engineering large-sized lattice frameworks and particularly relates to a root distance control device based on a universal lattice framework lifting. The root distance control device at least comprises a telescoping main bar. Two ends of the main bar extend out in the length direction and are fixedly connected with corresponding frameworks respectively. The root distance control device further comprises a force adjustment unit used for adjusting telescoping length of the main bar to forcibly control the root distance of the two frameworks. The root distance of the two components is controlled by forcible mechanical forcing according to the fact that the large-sized lattice framework is difficult to adjust and root distance errors easily occur during installation; accordingly, subsequent manual adjustment is achieved. Even if the root distance error occurs during ground assembly of the framework, forced mechanical adjustment of the framework can be achieved. The root distance control device is simple in structure and simple to implement, control of the framework root distance is high in precision, adjusting effect is significant, and efficiency is high.

Description

technical field [0001] The invention belongs to the technical field of installation of a large-scale lattice frame in a substation (converter) station project, and in particular relates to a root opening control device based on a general-purpose lattice frame hoisting. Background technique [0002] With the acceleration of the construction of the national UHV power grid, more and more UHV substation (converter) station projects are being constructed, and large-scale lattice frame installations will be widely used in UHV substation (converter) station projects. Compared with the previous lattice structure, UHV large-scale lattice structure has the characteristics of super height, overweight, more difficult installation, higher installation accuracy and greater installation risk. The large-scale lattice structure often adopts a segmented structure when assembling, and the installation sequence is generally in accordance with "the ground is assembled in segments first, and then...

AI Technical Summary

Problems solved by technology

The large-scale lattice structure often adopts a segmented structure when assembling, and the installation sequence is generally in accordance with "the ground is assembled in segments first, and then the segments are hoisted as a whole". If the root opening distance of each section (that is, the distance between two adjacent feet in the foundation tower) is not effectively controlled during ground assembly, so that the error of the assembly root opening control value of each section falls within the design requirements, once the After the frame with a deviation in the distance between the joints and roots is hoisted at a high altitude, it cannot be accurately docked with the corresponding docking feet of the installed frame. In the end, it will only cause the lattice frame to be unable to continue to be installed, and it has to be disassembled and reassembled. , not only reduces the actual installation efficiency, but also increases the installation personnel's risk of working at heights due to the additional number of high-altitude frame installations

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