Technique for processing circular ring box type beam of lifting tool

Abstract

The invention relates to a technique for making a circular ring box type beam of an aerogenerator set lifting tool, in particular to a technique for processing a circular ring box type beam of a lifting tool. The circular ring box type beam is divided into two semicircular ring box type beams, and each semicircular ring box type beam comprises two web plates, an internal partition plate, an upper wing plate, a lower wing plate and a seam-butting plate. The semicircular ring box type beam is processed by the steps of assembling and welding the two web plates, the internal partition plate, the upper wing plate, the lower wing plate and the seam-butting plate, and the like. The invention simply and effectively controls the welding deformation, reduces the machining cost and the work load for assembly welding on site and completes the assembly welding task with high efficiency and quality.

Description

technical field

[0001] The invention relates to a manufacturing process of a hoisting tool for a wind power generating set, in particular to a manufacturing process of a ring box girder of the hoisting tool. Background technique

[0002] This product is used for the hoisting tool of the first 3MW wind power generating set in China. This hoisting tool is the first in China. It is a special-shaped steel structure with high load, large components and complex structure. Large-scale mechanical processing machines are also involved in the manufacturing process. There is no similar experience to refer to. If it is carried out according to the general steel structure process idea, the construction period will be delayed, the efficiency will be low, and the cost will increase significantly. All the welds of the hoisting tool ring box girder are first-class welds (except for the internal stiffener). The most direct consequence caused by a large number of first-class welds is large wel...

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