Universal tail hoisting tool for hoisting wind power tower barrel

Abstract

The invention discloses a universal tail hoisting tool for hoisting a wind power tower barrel. The tool comprises a fixing rod, an upper bent lever assembly, a supporting rod, a lower lever assembly,a hoisting hook and an adjusting bolt; and a groove-shaped supporting part used for supporting the wind power tower barrel is formed in one side of the fixing rod, the adjusting bolt penetrates through the side wall of the groove-shaped supporting part to abut against a flange of the tower barrel for fixation, the two ends of the fixing rod are hinged to the middle of the upper bent lever assembly and the middle of the lower lever assembly correspondingly, the supporting rod is parallel to the fixing rod and is positioned on the side opposite to the groove-shaped supporting part, the two endsof the supporting rod are hinged to the end part of the upper bent lever assembly and the end part of the lower lever assembly correspondingly, the end, away from the supporting rod, of the upper bent lever assembly is used for allowing a hoisting belt to be installed, the end, away from the supporting rod, of the lower lever assembly is connected with the hoisting hook below the lower lever assembly, and the hoisting hook is connected to any two positions of the tower barrel flange through two connecting pieces. The tool has the advantages of being simple in structure, convenient to operate,reliable in performance, high in efficiency and the like.

Description

technical field [0001] The invention relates to the technical field of hoisting towers of large-scale wind power generators, in particular to a universal tail sling for hoisting wind power towers. Background technique [0002] At present, in the wind power industry, the hoisting process of large-scale wind turbine towers adopts the joint hoisting method of two cranes, such as figure 1 As shown, each crane lifts the two ends of the tower separately. When the tower is off the ground, the upper end of the tower continues to be lifted, while the tail does not move until the tower is vertical. Then, remove the tail spreader and continue to lift the tower for installation. When using this method to hoist the tower, in order to adapt to the hoisting of each section of the tower, generally there are round holes with different sizes and distribution circle diameters on the tail hanging plate, such as figure 2 shown. Although the use of this type of tail hanging plate can satisfy ...

AI Technical Summary

Problems solved by technology

Although the use of this type of tail hanging plate can satisfy the hoisting of the tower, it also has the following problems: 1) The tail hanging plate has a huge structure and heavy weight, which makes its handling and installation operations more troublesome; 2) When hoisting a super large wind turbine ( For towers with 5.0MW or more), due to the heavy weight of the tower itself, in order to avoid deformation of the tower and its internal parts during hoisting, the tail of the tower is often lifted by multi-point force, but at this time the tail hanging plate The structure of the larger, such as image 3 3) The installation and disassembly process is cumbersome and inefficient, because the tail suspension plate and the tower are connected by bolts, and during the hoisting operation, the tail suspension plate relies on friction to withstand the tower. Because of the weight of the cylinder, each bolt needs to be marked with a large torque, so the installation and disassembly process is cumbersome and the work efficiency is low; 4) There are major safety hazards, and the disassembly is when the tower is lifted vertically , the operator needs to disassemble the spreader below it. This operation seriously violates the safety operation regulations and has serious safety hazards. If the crane hook or the sling breaks at this time, the consequences will be unimaginable; 5) It is not universal, because A set of tail hanging plate can only hoist the tower of one type of fan. For example, the hoisting gear for hoisting the MY2.0MW fan tower cannot be used for hoisting the SCD3.0MW fan tower, which leads to higher cost of tooling and hoisting tools

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