Offset-type reducing device for wind power tower hoisting construction platform telescopic section

Abstract

The invention discloses an offset type variable diameter device for the telescopic section of a construction platform hoisted by a wind power tower, comprising a telescopic operation section (1) arranged in a wind power tower (3) and several sets of eccentrically installed telescopic operation section (1) on the diameter reducing mechanism (2); every two groups of diameter reducing mechanisms (2) are arranged symmetrically with respect to the center of the telescopic operation section (1), and the diameter reducing directions of the two groups of diameter reducing mechanisms (2) are parallel and opposite , forming a telescoping segment variable diameter structure that can expand and contract independently of the telescopic operating segment (1); several groups of reducing mechanisms (2) form one or more layers of telescopic segment reducing structures on the telescopic operating segment (1). The invention can make full use of the size of the telescopic operation section through the offset-type variable diameter mechanism to expand the variable diameter range of the telescopic movable plate, and can meet the construction requirements of the entire wind power tower under the condition of reducing or even not replacing the construction platform .

Description

technical field [0001] The invention relates to a construction platform for hoisting a wind power tower, in particular to an offset type variable diameter device used for a telescopic section of a construction platform for hoisting a wind power tower. Background technique [0002] At present, most of the wind power prefabricated concrete towers are in the shape of a circular platform. The overall height of the concrete tower is about 80m, and the variation of the diameter from the top to the bottom is about 4~8.2m, that is, the variation in the radial direction reaches more than 2m. During the hoisting process of the prefabricated concrete tube section, the hoisting construction platform inside the tower tube rises with the rise of the tower tube, and the operator operates on the top and inner wall of the tube section at the top of the platform. [0003] The hoisting construction platform in the prior art includes a variable-diameter support section at the bottom, a rotating...

AI Technical Summary

Problems solved by technology

Due to the limitation of this layout structure, the length of the telescopic mechanism of the telescopic operation section is short, resulting in a small range of variable diameters, which cannot meet the construction requirements of the 4~8.2m diameter variation of the tower, so it is often necessary to use two or even three Only the telescopic operation section can meet the hoisting requirements of the entire tower, and the construction is difficult and has certain safety hazards

[0005] In addition, in order to facilitate the hoisting construction of the barrel section, a pre-installed ladder may be installed on the inner wall of the barrel section. In the smaller diameter barrel section, the telescopic operation section needs to avoid interference with the pre-installed ladder, because the diameter change range of the telescopic operation section is limited , the telescopic plate cannot extend to the inner wall of the tube section on the side of the pre-installed ladder, thus affecting the hoisting construction of the tube section

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