Mounting method and shape correcting device for wind power tower drum door frame and drum body reinforcing plate

Abstract

The invention discloses a mounting method for a wind power tower drum door frame and a drum body reinforcing plate. The method comprises the steps that the drum body reinforcing plate is manufactured,door frame holes are cut, the drum body reinforcing plate and the door frame are assembled, the drum body reinforcing plate is subjected to arc shape correcting, drum body reinforcing plate holes areformed in a bottom segment tower drum, and the drum body reinforcing plate is mounted and welded. The shape correcting device comprises a support, shape correcting equipment, a rolling device and a correction moulding bed, and the shape correcting equipment is arranged on the support; the rolling device is arranged on a base, and an elastic device is arranged at the bottom of the rolling device;and the correction moulding bed is arranged on the base, the radian of the correction moulding bed is consistent with that of a barrel, and the width and depth of a groove in the middle of the correction moulding bed are slightly larger than those of an inward protrusion of the door frame on the reinforcing plate. According to the mounting method, the requirements of door frame setting out and door frame hole opening on the operation experience of workers are reduced, the reinforcing plate splicing time is saved, and the production efficiency is improved; and the shape correcting device achieves accurate shape correcting on the radian of a reinforcing plate drum section, the radian of the reinforcing plate drum section is made to be consistent with that of a drum body of a wind power towerdrum, and the phenomenon that the stress of the tower drum is affected due to misalignment in the pairing process is avoided.

Description

technical field [0001] The invention relates to an installation method and an orthopedic device, in particular to an installation method and an orthopedic device for a wind power tower tube door frame and a tube reinforcement plate. Background technique [0002] As the supporting structure of wind power generation equipment, the wind power tower is in the form of multi-section cylinders connected layer by layer, and the manufacturing process includes a large number of circular seam welding work. Since the reinforcement plate is welded at the position of the tube joint near the tower door to play a strengthening role, the current existing technology is to weld the reinforcement plate to the cylinder after the welding of the overall ring seam of the bottom section of the tower tube is completed, and the position of the tower door reinforcement plate is Lofting of the door frame, opening the door frame hole on the reinforcement plate and butt welding of the reinforcement plate ...

AI Technical Summary

Problems solved by technology

[0003] ①Due to the traditional process, it is necessary to weld the reinforcement plate and the cylinder first, and then stake out the door frame at the position of the reinforcement plate of the tower door. The stakeout belongs to high-altitude operations, and it is not suitable for CNC control. It is only manual operation, so the door frame stakeout operation is more complicated , it is not easy to control the positioning;

[0004] ② Since the width and height of the door frame are fixed, the manual opening of the door frame hole may be large or small, which is greatly affected by the work experience of the workers;

[0005] ③ There is a risk of high-altitude operation in the butt welding of the reinforcement plate and the door frame, the welding time is long, the work intensity is high, and the first-time pass rate is difficult to guarantee

[0006] ④ For workpieces welded by the reinforcement plate and the door frame, the joint arc of the reinforcement plate near the door frame is often deformed due to the influence of thermal stress, which makes the arc of the reinforcement plate and the cylinder deviate, which affects the stress state of the tower. The raised part of the door frame cannot be rounded by rolling equipment

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