CN114505653A - Flange forging and rolling forming method for wind power generation tower cylinder - Google Patents
Flange forging and rolling forming method for wind power generation tower cylinder Download PDFInfo
- Publication number
- CN114505653A CN114505653A CN202210215250.1A CN202210215250A CN114505653A CN 114505653 A CN114505653 A CN 114505653A CN 202210215250 A CN202210215250 A CN 202210215250A CN 114505653 A CN114505653 A CN 114505653A
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- Prior art keywords
- flange
- blank
- flange blank
- wind power
- power generation
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- 238000005096 rolling process Methods 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 36
- 238000005242 forging Methods 0.000 title claims abstract description 24
- 238000010248 power generation Methods 0.000 title claims abstract description 23
- 238000010438 heat treatment Methods 0.000 claims abstract description 21
- 230000007246 mechanism Effects 0.000 claims abstract description 4
- 238000003801 milling Methods 0.000 claims description 12
- 238000001514 detection method Methods 0.000 claims description 6
- 230000007547 defect Effects 0.000 claims description 5
- 238000003754 machining Methods 0.000 claims description 4
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 3
- 239000010962 carbon steel Substances 0.000 claims description 3
- 238000005498 polishing Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 abstract description 8
- 230000008439 repair process Effects 0.000 abstract description 3
- 238000007689 inspection Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
- B21H1/00—Making articles shaped as bodies of revolution
- B21H1/06—Making articles shaped as bodies of revolution rings of restricted axial length
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J1/00—Preparing metal stock or similar ancillary operations prior, during or post forging, e.g. heating or cooling
- B21J1/04—Shaping in the rough solely by forging or pressing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/002—Hybrid process, e.g. forging following casting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K1/00—Making machine elements
- B21K1/28—Making machine elements wheels; discs
- B21K1/32—Making machine elements wheels; discs discs, e.g. disc wheels
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
- F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Forging (AREA)
Abstract
The invention discloses a flange forging and rolling forming method for a wind power generation tower cylinder, which relates to the technical field of flange forging and rolling forming, and aims at solving the problems that the existing flange forging and rolling forming method for the wind power generation tower cylinder has single function, rough process, unstable size guarantee in the processing process, frequent occurrence of out-of-tolerance, unstable quality state, high flange repair rate, high rejection rate and poor use effect, the following scheme is proposed, and comprises the following steps: s1: selecting a plate as a flange blank, turning the flange blank for the first time through a lathe, and turning the flange into a rough shape; s2: heating the flange blank by a heating furnace, taking out the blank after the heating is finished, and positioning the flange blank by a fixing mechanism; s3: and (5) carrying out primary diameter expanding and rolling on the flange blank by using a ring rolling mill. The flange processing device is reasonable in design, high in qualified rate of flange processing, capable of guaranteeing product quality, long in service life, high in user satisfaction degree and worthy of popularization and application.
Description
Technical Field
The invention relates to the technical field of flange forging and rolling forming, in particular to a flange forging and rolling forming method for a wind power generation tower cylinder.
Background
The wind power tower barrel is a tower pole for wind power generation, and mainly plays a supporting role in a wind generating set and absorbs the vibration of the set; the flange is also called flange disc or flange, and the flange is a part for connecting the shaft and is used for connecting pipe ends; in a wind power tower, a flange plays a crucial role, and in order to ensure the normal operation of the wind power tower, a method for forging and rolling a flange of a wind power generation tower cylinder is urgently needed.
However, the existing forging and rolling forming method for the flange of the wind power generation tower cylinder has the advantages of single function, rough process, unstable dimension guarantee in the machining process, frequent occurrence of out-of-tolerance, unstable quality state, high repair rate of the flange, high rejection rate and poor use effect.
Disclosure of Invention
The invention aims to solve the defects that the existing method for forging and rolling the flange of the wind power generation tower cylinder has single function, rough process, unstable dimension in the processing process, frequent occurrence of out-of-tolerance, unstable quality state, high flange repair rate, high rejection rate and poor use effect.
In order to achieve the purpose, the invention adopts the following technical scheme:
a forging and rolling forming method for a wind power generation tower cylinder flange comprises the following steps:
s1: selecting a plate as a flange blank, turning the flange blank for the first time through a lathe, and turning the flange into a rough shape;
s2: heating the flange blank by a heating furnace, taking out the blank after the heating is finished, and positioning the flange blank by a fixing mechanism;
s3: carrying out primary diameter expanding and rolling on the flange blank by using a ring rolling mill, and rolling the aperture of the flange blank;
s4: stamping the flange blank by a hydraulic machine, and stamping again after heating if the temperature is lower than 1000 ℃;
s5: after the stamping is finished, performing secondary expanding rolling on the flange blank by using a ring rolling mill, and standing the blank after the expanding rolling is finished to cool the blank;
s6: carrying out ultrasonic detection on the flange blank;
s7: performing secondary turning on the flange blank by a lathe, and mainly processing the end surface and the cambered surface of the flange blank to enable the end surface and the cambered surface of the flange blank to be smoother;
s8: milling the flange blank by a milling machine, and mainly flattening arc-shaped corners at the top side of the flange blank;
s9: the burrs of the flange blank are cleaned by a bench worker, so that the surface of the flange blank is smoother;
s10: slotting the surface of the flange blank by a reamer of a lathe;
s11: fixing the flange blank, and opening holes on the flange blank by a numerical control milling machine;
s12: finely machining the hole formed in the S11 by using a numerical control milling machine to enable the hole diameter to reach the required specification;
s13: polishing the flange blank by a bench worker to remove all burrs;
s14: and (6) detecting and warehousing finished products.
Preferably, in S2, the temperature of the heating furnace is set at 1200-1250 ℃, and the heating time is set at 120 minutes.
Preferably, in S1, the plate is a stamping and is made of WCB (carbon steel).
Preferably, in the step S10, the plurality of holes are arranged at equal intervals, and the hole diameter is 35 mm.
Preferably, the diameter of the finished flange is 3380mm, and the aperture is phi 3080 mm.
Preferably, the ultrasonic detection in S6 is mainly used for detecting whether the flange blank in S5 has internal defects.
According to the forging and rolling forming method for the flange of the wind power generation tower cylinder, the stamping piece plate is selected as the flange blank, the flange blank is stamped in the forming process, and the quality of a finished product is guaranteed;
according to the forging and rolling forming method for the flange of the wind power generation tower cylinder, quality detection is carried out on the flange blank in the forming process, the blank with defects is prevented from entering the next step of process, and extra economic loss caused by the fact that the quality of a product is not qualified when the product is inspected and stored is avoided;
the flange processing device is reasonable in design, high in qualified rate of flange processing, capable of guaranteeing product quality, long in service life, high in user satisfaction degree and worthy of popularization and application.
Drawings
FIG. 1 is a schematic perspective view of a flange forging and rolling method for a wind power generation tower according to the present invention;
FIG. 2 is a front view of a method for forging and roll forming a flange of a wind power generation tower according to the present invention;
FIG. 3 is a top view of a wind power generation tower flange forging and rolling method according to the present invention;
FIG. 4 is a schematic sectional structural view of a main view of a method for forging and rolling a flange of a wind power generation tower according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-4, the present solution provides an embodiment: a forging and rolling forming method for a wind power generation tower cylinder flange comprises the following steps:
s1: selecting a plate as a flange blank, turning the flange blank for the first time through a lathe, and turning the flange into a rough shape;
s2: heating the flange blank by a heating furnace, taking out the blank after the heating is finished, and positioning the flange blank by a fixing mechanism;
s3: carrying out primary diameter expanding and rolling on the flange blank by using a ring rolling mill, and rolling the aperture of the flange blank;
s4: stamping the flange blank by a hydraulic machine, and stamping again after heating if the temperature is lower than 1000 ℃;
s5: after the stamping is finished, performing secondary expanding rolling on the flange blank by using a ring rolling mill, and standing the blank after the expanding rolling is finished to cool the blank;
s6: carrying out ultrasonic detection on the flange blank;
s7: performing secondary turning on the flange blank by a lathe, and mainly processing the end surface and the cambered surface of the flange blank to enable the end surface and the cambered surface of the flange blank to be smoother;
s8: milling the flange blank by a milling machine, and mainly flattening arc-shaped corners at the top side of the flange blank;
s9: the burrs of the flange blank are cleaned by a bench worker, so that the surface of the flange blank is smoother;
s10: slotting the surface of the flange blank by a reamer of a lathe;
s11: fixing the flange blank, and opening holes on the flange blank by a numerical control milling machine;
s12: finely machining the hole formed in the S11 by using a numerical control milling machine to enable the hole diameter to reach the required specification;
s13: polishing the flange blank by a bench worker to remove all burrs;
s14: and (6) detecting and warehousing finished products.
In this embodiment, in S1, the plate is a stamping and is made of WCB (carbon steel).
In this embodiment, in S2, the temperature of the heating furnace is set at 1200-1250 ℃, and the heating time is set at 120 minutes.
In this embodiment, in S10, the holes are equally spaced and have an aperture diameter of 35 mm.
In this embodiment, the diameter of the finished flange is 3380mm, and the aperture is phi 3080 mm.
In this embodiment, the ultrasonic inspection in S6 is mainly used to inspect whether the flange blank has internal defects in S5.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.
Claims (6)
1. A forging and rolling forming method for a wind power generation tower cylinder flange is characterized by comprising the following steps: the method comprises the following steps:
s1: selecting a plate as a flange blank, turning the flange blank for the first time through a lathe, and turning the flange into a rough shape;
s2: heating the flange blank by a heating furnace, taking out the blank after the heating is finished, and positioning the flange blank by a fixing mechanism;
s3: carrying out primary diameter expanding and rolling on the flange blank by using a ring rolling mill, and rolling the aperture of the flange blank;
s4: stamping the flange blank by a hydraulic machine, and stamping again after heating if the temperature is lower than 1000 ℃;
s5: after the stamping is finished, performing secondary expanding rolling on the flange blank by using a ring rolling mill, and standing the blank after the expanding rolling is finished to cool the blank;
s6: carrying out ultrasonic detection on the flange blank;
s7: performing secondary turning on the flange blank by a lathe, and mainly processing the end surface and the cambered surface of the flange blank to enable the end surface and the cambered surface of the flange blank to be smoother;
s8: milling the flange blank by a milling machine, and mainly flattening arc-shaped corners at the top side of the flange blank;
s9: the burrs of the flange blank are cleaned by a bench worker, so that the surface of the flange blank is smoother;
s10: slotting the surface of the flange blank by a reamer of a lathe;
s11: fixing the flange blank, and opening holes on the flange blank by a numerical control milling machine;
s12: finely machining the hole formed in the S11 by using a numerical control milling machine to enable the hole diameter to reach the required specification;
s13: polishing the flange blank by a bench worker to remove all burrs;
s14: and (6) detecting and warehousing finished products.
2. The method for forging and roll forming the flange of the wind power generation tower cylinder according to claim 1, wherein the method comprises the following steps: in the step S2, the temperature of the heating furnace is set at 1200-1250 ℃ and the heating time is set at 120 minutes.
3. The method for forging and roll forming the flange of the wind power generation tower cylinder according to claim 1, wherein the method comprises the following steps: in the step S1, the plate is a stamped part and made of WCB (carbon steel).
4. The method for forging and roll forming the flange of the wind power generation tower cylinder according to claim 1, wherein the method comprises the following steps: in the S10, a plurality of holes are arranged at equal intervals, and the hole diameter is phi 35 mm.
5. The method for forging and roll forming the flange of the wind power generation tower cylinder according to claim 1, wherein the method comprises the following steps: the diameter of the finished flange is 3380mm, and the aperture is phi 3080 mm.
6. The method for forging and roll forming the flange of the wind power generation tower cylinder according to claim 1, wherein the method comprises the following steps: and (6) performing ultrasonic detection in the S6, and mainly detecting whether the flange blank in the S5 has internal defects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210215250.1A CN114505653A (en) | 2022-03-07 | 2022-03-07 | Flange forging and rolling forming method for wind power generation tower cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210215250.1A CN114505653A (en) | 2022-03-07 | 2022-03-07 | Flange forging and rolling forming method for wind power generation tower cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114505653A true CN114505653A (en) | 2022-05-17 |
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ID=81553182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210215250.1A Pending CN114505653A (en) | 2022-03-07 | 2022-03-07 | Flange forging and rolling forming method for wind power generation tower cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114505653A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117900364A (en) * | 2024-03-20 | 2024-04-19 | 星泓智造装备有限公司 | Near-net-shape forging method for offshore wind power tower flange |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101081426A (en) * | 2007-06-14 | 2007-12-05 | 兰鹏光 | Flange of wind power generation tower barrel forging shaping process |
| CN102717237A (en) * | 2012-06-28 | 2012-10-10 | 江苏金源锻造股份有限公司 | Method for forming wind power flange |
| US20130205857A1 (en) * | 2012-02-13 | 2013-08-15 | Psm, Inc. | Method of manufacturing flange for wind towers using ring rolling method |
| CN105499928A (en) * | 2015-12-29 | 2016-04-20 | 江阴市恒润环锻有限公司 | Flange machining method |
| CN109483157A (en) * | 2017-09-13 | 2019-03-19 | 南京美克斯精密机械有限公司 | A kind of flange processing technology |
| CN109648255A (en) * | 2018-11-16 | 2019-04-19 | 贵州航天新力铸锻有限责任公司 | A kind of plate forging rolloff composite molding technique of large-sized flange |
| CN110814264A (en) * | 2019-12-21 | 2020-02-21 | 济南泰康锻造有限公司 | Flange forging process |
| US20200158089A1 (en) * | 2017-09-30 | 2020-05-21 | Xinjiang Goldwind Science & Technology Co., Ltd. | Tower portion, tower, wind turbine generator assembly and method for manufacturing tower portion |
| CN111195809A (en) * | 2020-03-05 | 2020-05-26 | 捷而科电材（上海）有限公司 | Processing technology of neck-equipped welding neck flange |
-
2022
- 2022-03-07 CN CN202210215250.1A patent/CN114505653A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101081426A (en) * | 2007-06-14 | 2007-12-05 | 兰鹏光 | Flange of wind power generation tower barrel forging shaping process |
| US20130205857A1 (en) * | 2012-02-13 | 2013-08-15 | Psm, Inc. | Method of manufacturing flange for wind towers using ring rolling method |
| CN102717237A (en) * | 2012-06-28 | 2012-10-10 | 江苏金源锻造股份有限公司 | Method for forming wind power flange |
| CN105499928A (en) * | 2015-12-29 | 2016-04-20 | 江阴市恒润环锻有限公司 | Flange machining method |
| CN109483157A (en) * | 2017-09-13 | 2019-03-19 | 南京美克斯精密机械有限公司 | A kind of flange processing technology |
| US20200158089A1 (en) * | 2017-09-30 | 2020-05-21 | Xinjiang Goldwind Science & Technology Co., Ltd. | Tower portion, tower, wind turbine generator assembly and method for manufacturing tower portion |
| CN109648255A (en) * | 2018-11-16 | 2019-04-19 | 贵州航天新力铸锻有限责任公司 | A kind of plate forging rolloff composite molding technique of large-sized flange |
| CN110814264A (en) * | 2019-12-21 | 2020-02-21 | 济南泰康锻造有限公司 | Flange forging process |
| CN111195809A (en) * | 2020-03-05 | 2020-05-26 | 捷而科电材（上海）有限公司 | Processing technology of neck-equipped welding neck flange |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117900364A (en) * | 2024-03-20 | 2024-04-19 | 星泓智造装备有限公司 | Near-net-shape forging method for offshore wind power tower flange |
| CN117900364B (en) * | 2024-03-20 | 2024-05-10 | 星泓智造装备有限公司 | Near-net-shape forging method for offshore wind power tower flange |
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Application publication date: 20220517 |