Assembling method of doorframe of wind power tower
An assembly method and tower technology, applied in welding equipment, metal processing equipment, manufacturing tools, etc., can solve the problems of large welding volume of door frame, poor flatness of lower tower flange, preheating and high interlayer temperature, etc.
Active Publication Date: 2013-04-03
上海电力机械有限公司
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Problems solved by technology
If this manufacturing process is adopted, since the welding distance between the flange of the lower tower tube and the door frame is only 600mm, the plate thickness of the cylinder is 54mm, and the thickness of the door frame is 200mm, the welding volume of the door frame is large, and the preheating and interlayer temperatures are high. It causes local deformation of the cylinder at the bottom of the tower at the door frame, and causes the flatness of the flange of the lower tower to be out of tolerance. The flatness is above 5mm, or even 20mm. Even if the method of flame correction is used, it is difficult to grasp and control the effect
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Embodiment Construction
[0016] A preferred implementation method of the present invention is set forth below in conjunction with the accompanying drawings.
[0017] combine figure 1 , the invention provides a method for assembling a door frame of a wind power tower, the steps of which are:
[0018] Step 1. Assemble the multi-segment cylinders end-to-end in sequence to form a basic tower.
[0019] Step 2. Connect the cylinder body 1 at the bottom of the tower to the bottom of the foundation tower.
[0020] Step 3. Place at least one support plate 2 above and below the position where the bottom cylinder 1 of the tower is to be drilled, and the outer edge of the support plate 2 fits with the inner wall of the tower bottom cylinder 1, so that the support plate 2 pairs of supports are formed around the cylinder body 1 at the bottom of the tower. Due to the large area of the support plate 2 , the middle part of the support plate 2 tends to be depressed downwards. In order to make the surface of the su...
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Abstract
The invention provides an assembling method of a doorframe of a wind power tower, comprising the following steps of: connecting a drum body positioned at a bottom into a total length; then arranging a support inside the opening position of the doorframe of the drum body; then punching a hole on the opening position of the doorframe; welding the doorframe with the drum body; then disassembling support tooling; welding the drum body with a lower flange; and finally reinspecting the dimension of the welded lower flange. The assembling method disclosed by the invention breaks the mindset of the conventional technology, acts in a diametrically opposite way and comprises the steps of firstly punching the hole and then welding; and in addition, the planeness of the welded lower tower drum flangeis not more than 2 mm.
Description
technical field [0001] The invention relates to a method for assembling a door frame of a wind power tower. Background technique [0002] In recent years, with the development of green energy and the rise of low-carbon economy, wind power as a green energy will become a major driving force to achieve low-carbon standards. [0003] As a part of wind power generation, the wind power tower is a concentrated expression of measuring the manufacturing capacity of a manufacturing enterprise, which includes multi-section cylinders, flanges, foundation rings, door frames, internal accessories and other components. In the tower manufacturing process, there are assembly welding of a section of cylinder and its adjacent cylinder, assembly welding of each section of cylinder and flange, assembly welding of foundation ring and flange, assembly of door frame and tower bottom cylinder Welding, assembly and welding of internal accessories and cylinders, etc. [0004] In tower manufacturin...
Claims
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IPC IPC(8): B23K31/02
Inventor 金婉忠沈锋龚长贵
Owner 上海电力机械有限公司