CN105798078B - The antidote of wind-power tower flange flatness and introversion value - Google Patents
The antidote of wind-power tower flange flatness and introversion value Download PDFInfo
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- CN105798078B CN105798078B CN201610179464.2A CN201610179464A CN105798078B CN 105798078 B CN105798078 B CN 105798078B CN 201610179464 A CN201610179464 A CN 201610179464A CN 105798078 B CN105798078 B CN 105798078B
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- flange
- mould
- tower
- antidote
- correction
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
- B21D1/02—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling by rollers
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- Mechanical Engineering (AREA)
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Abstract
The invention belongs to wind power tower manufacturing, the antidote of more particularly to a kind of wind-power tower flange flatness and introversion value, antidote is as follows：By the way of mechanical stretching, realize and the welding tension between flange and shell ring is changed into welding compression；Using cal rolling device, elongation mode is rolled by local, realize the correction control of planeness of flange, rolling device is using the four-roll plate bending machine for producing pylon, coordinate what auxiliary rolled that mould stitches flange to roll processing, mould is rolled using the structure for dividing valve to connect, it is fixed in the upper roller of veneer reeling machine, the normal pressure of correction is provided by roll bending machine hydraulic equipment, due to tower, when rolling, weld seam position is a stress, make weld seam in length and the change in size of width, so as to fulfill the correction of planeness of flange and negative camber；The method of the antidote cancellation flame straightening of wind-power tower flange flatness and introversion value, reduces production cost, improves production efficiency, simple to the apparatus structure of planeness of flange correction, and operation is easy, and rectification effect is obvious.
Description
Technical field
The invention belongs to wind power tower manufacturing, more particularly to a kind of wind-power tower flange flatness and introversion value are rectified
Correction method.
Background technology
Wind power tower drum and foundation ring are a parts for wind turbine tower, as the important feature of wind power equipment, wind
Power generates electricity, and pylon is very high to the requirement of tower drum flange connection surface, and it is 1 ~ 2mm generally to require the flatness after flange welding；Flange
Negative camber is 0.5 ~ 1.5mm, and flange must be sloped inwardly, and surface forbids phenomenon of turning up occur；Domestic pylon factory
In order to realize such technical requirements, the prefabricated processing for carrying out introversion to flange face in advance is generally taken, is realized substantially after welding
The flatness and introversion value of Flange Plane reach the requirement of technical conditions；On the other hand, when planeness of flange or interior occurs in tower
When inclining unqualified, corrected using the method for flame straightening, flatness correcting generally carried out by the ring-type heating to cylinder,
Stress release is realized by the heating to weld seam part, reaches the effect of introversion value correction.Since the requirement of flange negative camber is led to
Cross prefabricated method and realize the shape for having changed original flange, after timeliness, the change of turning up in being processed with original production
The disappearance of shape stress, causes the running actual negative camber increase of flange, and the introversion processed in substance form permanent shape
The introversion of state, and should pass through bolt there are slight introversion under formation state for running pylon connecting flange
Certain internal stress is provided to connection bolt after tightening, ensures the fastening effect of bolt.Method due to taking flame straightening is real
It is that certain influence can be produced to the crystalline structure of material in itself on border, causes the plasticity of material in itself to decline hardness and improve, though
The properties of product so obtained still can meet product needs, but still be to exist to adversely affect to properties of product.Pylon method
The reply of blue introversion deformation, causes the joint gap between bolt to increase, in equipment for a long time with alternation wind load and other load
In the case of, there is also detrimental effect, substantial amounts of pylon bolt that fracture accident occurs for safe handling for bolt.
The content of the invention
It is an object of the invention to overcome above-mentioned technical deficiency, there is provided one kind can avoid flame straightening to Effect of Materials, side
Just it is quick, ensure the antidote of the safe and reliable wind-power tower flange flatness of connection bolt and introversion value.
The present invention solves the technical solution that technical problem uses：The correction side of wind-power tower flange flatness and introversion value
Method is as follows：By the way of mechanical stretching, realize and the welding tension between flange and shell ring is changed into welding compression；Using
Cal rolling device, elongation mode is rolled by local, realizes the correction control of planeness of flange, rolling device is using production
The four-roll plate bending machine of pylon, coordinates what auxiliary rolled that mould stitch flange to roll processing, rolls the knot that mould use divides valve connection
Structure, is fixed in the upper roller of veneer reeling machine, the normal pressure of correction is provided by roll bending machine hydraulic equipment, since tower is welded when rolling
Position is stitched as a point stress, makes weld seam in length and the change in size of width, so as to fulfill planeness of flange and negative camber
Correction；It is two and half ring flat-plates to roll mould, and perpendicular connecting plate, two and half ring flat-plates are equipped with the edge of two and half ring flat-plates
A cast is connected with bolt and nut by connecting plate, mould is rolled in the upper roller of veneer reeling machine, rolls mould and be arranged on tower
Inner wall, it is parallel with tower axis, roll half ring flat-plate and monotubular section flange contact of mould, the outer wall veneer reeling machine snub pulley of tower
With the right carrying roller contact of the left carrying roller of veneer reeling machine and veneer reeling machine of both sides, lining is mutually held in the palm corresponding to tower drum outer wall, inner wall with rolling mould.
The beneficial effects of the invention are as follows：The antidote cancellation flame straightening of wind-power tower flange flatness and introversion value
Method, reduce production cost, improve production efficiency, simple to the apparatus structure of planeness of flange correction, operation is easy, correction
Positive effect.
Brief description of the drawings
Illustrated below in conjunction with attached drawing with embodiment.
Fig. 1 is to roll mould in the antidote of wind-power tower flange flatness and introversion value with veneer reeling machine mounting structure to show
It is intended to.
In figure, 1- towers；2- monotubular section flanges；3- bolt and nuts；4- connecting plates；Half ring flat-plates of 5-；The right carrying roller of 6- veneer reeling machines；
7- veneer reeling machine snub pulleys；The left carrying roller of 8- veneer reeling machines.
Embodiment
Embodiment, referring to the drawings 1, what is used in the antidote of wind-power tower flange flatness and introversion value rolls mould
By two and half ring flat-plates 5, perpendicular connecting plate 4 is set in the edge of two and half ring flat-plates 5, two and half ring flat-plates 5 pass through connecting plate 4
A cast is fixed with bolt and nut 3.Mould is rolled in the upper roller of veneer reeling machine, rolls the inner wall that mould is arranged on tower 1, with
The axis of tower 1 is parallel, and half ring flat-plate 5 for rolling mould is contacted with monotubular section flange 2, the outer wall veneer reeling machine snub pulley 7 of tower 1
The right carrying roller 6 of carrying roller 8 and veneer reeling machine left with the veneer reeling machine of both sides contacts, mutual corresponding to outer wall, the inner wall of tower 1 with rolling mould
Support lining.The normal pressure of correction is provided by roll bending machine hydraulic equipment, weld seam is point stress when rolling due to tower 1, makes weld seam
In length and width change in size, the correction of planeness of flange and negative camber is realized.
The concrete operations of the antidote of wind-power tower flange flatness and introversion value are as follows：Rise plate bending machine upper roller extremely
Proper height, will roll mould in the upper roller of four-roll plate bending machine, is fastened, beaten by connecting plate 4 and bolt and nut 3
The openend of uncoiling board device, hangs in welding and examines the monotubular section flange 2 of qualification, will roll the center gap circular arc pair of mould
The central protuberance position of positive weld seam.The openend of veneer reeling machine is closed, declines upper roller and adjusts appropriate pressure, rotates bending machine roller dress
Put and tracing detection flange introversion change, the flatness of control flange determine uneven position, carried out for the section of bottom point position
Determine, mark flange low spot scope, and the weld seam of the scope is carried out rolling correction flatness.
Claims (1)
1. the antidote of a kind of wind-power tower flange flatness and introversion value, it is characterised in that antidote is as follows：Using machine
The mode of tool stretching, realizes the welding tension between flange and shell ring being changed into welding compression；Using cal rolling device,
Elongation mode is rolled by local, realizes the correction control of planeness of flange, rolling device is using the four-roller roll bending for producing pylon
Machine, coordinates what auxiliary rolled that mould stitch flange to roll processing, rolls the structure that mould use divides valve connection, be fixed on veneer reeling machine
Upper roller on, by roll bending machine hydraulic equipment provide correction normal pressure, due to tower when rolling weld seam position for point a stress,
Make weld seam in length and the change in size of width, so as to fulfill the correction of planeness of flange and negative camber；Roll mould
For two and half ring flat-plates（5）, in two and half ring flat-plates（5）Edge be equipped with perpendicular connecting plate（4）, two and half ring flat-plates（5）It is logical
Cross connecting plate（4）And bolt and nut（3）A cast is connected, mould is rolled in the upper roller of veneer reeling machine, rolls mould and be arranged on
Tower inner wall, it is parallel with tower axis, roll half ring flat-plate of mould（5）With monotubular section flange（2）Contact, tower（1）Outer wall
With veneer reeling machine snub pulley（7）With the left carrying roller of veneer reeling machine of both sides（8）With the right carrying roller of veneer reeling machine（6）Contact, it is corresponding with rolling mould
In tower（1）Outer wall, inner wall mutually hold in the palm lining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610179464.2A CN105798078B (en) | 2016-03-28 | 2016-03-28 | The antidote of wind-power tower flange flatness and introversion value |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610179464.2A CN105798078B (en) | 2016-03-28 | 2016-03-28 | The antidote of wind-power tower flange flatness and introversion value |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105798078A CN105798078A (en) | 2016-07-27 |
| CN105798078B true CN105798078B (en) | 2018-04-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610179464.2A Active CN105798078B (en) | 2016-03-28 | 2016-03-28 | The antidote of wind-power tower flange flatness and introversion value |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105798078B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110711794B (en) * | 2019-11-25 | 2025-01-03 | 湖南恒岳重钢钢结构工程有限公司 | Wind tower flange eversion correction device |
| CN111451332A (en) * | 2019-12-20 | 2020-07-28 | 南通超力卷板机制造有限公司 | Roundness correction method for cylinder formed by roll bending of three-roller plate bending machine |
| CN114055045B (en) * | 2021-11-02 | 2024-01-30 | 武汉华电工程装备有限公司 | Welding device for longitudinal seam of tower barrel |
| CN116175080B (en) * | 2023-04-25 | 2023-07-14 | 山西富兴通重型环锻件有限公司 | Wind power tower cylinder flange eversion correction equipment |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3575026A (en) * | 1968-01-24 | 1971-04-13 | Pines Engineering Co Inc | Rolling head for roto-form machine |
| CN1034324A (en) * | 1988-08-15 | 1989-08-02 | 开滦矿务局机电修配厂 | Pendulum roller type four rollers roll curved principle and section bar bending roll machine |
| CN1267574A (en) * | 1999-03-19 | 2000-09-27 | 湖北重型机器集团有限公司 | Correct plate-rolling machine |
| CN103042075A (en) * | 2012-12-28 | 2013-04-17 | 广州文冲船厂有限责任公司 | Method for correcting tubular structure diameter distortion by flame |
| CN103551425A (en) * | 2013-10-23 | 2014-02-05 | 沈阳黎明航空发动机(集团)有限责任公司 | Deformation correcting method of circumferential weld of thin-wall titanium alloy welding casing |
| CN104043935A (en) * | 2014-06-27 | 2014-09-17 | 中航虹波风电设备有限公司 | Tool for one-step welding forming of flange flatness and taper |
| CN104107848A (en) * | 2013-09-09 | 2014-10-22 | 南通超力卷板机制造有限公司 | Round straightening process of numerical control round straightener |
-
2016
- 2016-03-28 CN CN201610179464.2A patent/CN105798078B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3575026A (en) * | 1968-01-24 | 1971-04-13 | Pines Engineering Co Inc | Rolling head for roto-form machine |
| CN1034324A (en) * | 1988-08-15 | 1989-08-02 | 开滦矿务局机电修配厂 | Pendulum roller type four rollers roll curved principle and section bar bending roll machine |
| CN1267574A (en) * | 1999-03-19 | 2000-09-27 | 湖北重型机器集团有限公司 | Correct plate-rolling machine |
| CN103042075A (en) * | 2012-12-28 | 2013-04-17 | 广州文冲船厂有限责任公司 | Method for correcting tubular structure diameter distortion by flame |
| CN104107848A (en) * | 2013-09-09 | 2014-10-22 | 南通超力卷板机制造有限公司 | Round straightening process of numerical control round straightener |
| CN103551425A (en) * | 2013-10-23 | 2014-02-05 | 沈阳黎明航空发动机(集团)有限责任公司 | Deformation correcting method of circumferential weld of thin-wall titanium alloy welding casing |
| CN104043935A (en) * | 2014-06-27 | 2014-09-17 | 中航虹波风电设备有限公司 | Tool for one-step welding forming of flange flatness and taper |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105798078A (en) | 2016-07-27 |
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Address after: 123000 Fuxin city in Liaoning province Xin Qiu District Xinqiu Street No. 155 Patentee after: Dajin Heavy Industry Co.,Ltd. Address before: 123000 Fuxin city in Liaoning province Xin Qiu District Xinqiu Street No. 155 Patentee before: LIAONING DAJIN HEAVY INDUSTRY Co.,Ltd. |
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