CN202040029U - Base reversed balancing flange - Google Patents
Base reversed balancing flange Download PDFInfo
- Publication number
- CN202040029U CN202040029U CN2011200930182U CN201120093018U CN202040029U CN 202040029 U CN202040029 U CN 202040029U CN 2011200930182 U CN2011200930182 U CN 2011200930182U CN 201120093018 U CN201120093018 U CN 201120093018U CN 202040029 U CN202040029 U CN 202040029U
- Authority
- CN
- China
- Prior art keywords
- flange plate
- ring
- ring shaped
- shaped flange
- balancing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
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- 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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- Foundations (AREA)
Abstract
The utility model relates to a base reversed balancing flange used for a connecting part of a wind power generation base ring and a tower frame of a large-scale wind field, which belongs to a connecting piece of a ring plate and a pipeline. In the base reversed balancing flange, an inner-ring shaped flange plate and an outer-ring shaped flange plate are respectively and fixedly arranged on an inner wall and an outer wall of a cylindrical shell section, bolt holes are uniformly distributed on the inner-ring shaped flange plate and the outer-ring shaped flange plate, balancing blocks are fixedly arranged at the bottoms of the inner-ring shaped flange plate and the outer-ring shaped flange plate respectively, and steps are arranged at the bottoms of the balancing blocks. The bending moment action of a welded joint in the connection of the balancing blocks and the cylindrical shell section is eliminated, the circular pulling force of the cylindrical shell section is reduced, the force of the welded joint is reduced, the anti-bending rigidity under the cycling dynamic loading can be ensured to be consistent, the force requirement of a tower cylinder of an air blower can be fully met, the steel consumption can be saved, and the processing cost can be reduced. The base reversed balancing flange is connected with an elongated anchor bolt is used for connecting the base ring, can be fastened by a stretch-draw device and can accurately control a pre-drawing force value, so as to realize the purposes of fatigue resistance and maintenance avoidance and reduce the maintenance expense.
Description
Technical field
The utility model relates to the reverse balance flange in a kind of basis, is used for large-scale wind field wind power foundation ring and pylon attachment portion, belongs to ring flat-plate and pipe joint.
Background technique
Pylon and basis are the main structure systems of wind power generating set, bear cabin weight, wind wheel active force and wind and act on active force (moment of flexure, shearing, moment of torsion) on the tower tube, cause tilting moment to strengthen, also will bear the shock loads that wind wheel causes in addition.Unit maximizes and makes its structural system bear bigger load in recent years, and this had higher requirement to pylon and being connected of basis.Present traditional wind power foundation ring is connected with pylon to be mainly and forges flange and connect, and connects with bolt and adopts calibrated wrench method to tighten, when tighting a bolt, to the fastening piece intake.After removing screw-down torque, the frictional force of the self-locking action of screw pair and nut, bolt head supporting surface and flanged plate can be avoided the resilience of nut.Under random wind, flange bolt bears and draws, presses ringing to cause the bolt pretension decay.Bolt pretension decays to and to a certain degree causes reducing of the anti-resilience moment of torsion in nut bottom surface, thereby aggravation nut loosening or bolt connection pretightening force reduce or disappear.Stressed, the reduction structural bearing capacity that reduce to worsen flange of bolt pretightening produce dirt structural safety accident, so traditional pylon and basic flange Connecting format can not satisfy the bearing capacity of big type pylon fully in the time of seriously.
Summary of the invention
The purpose of this utility model has been to improve the tired bearing capacity situation that pylon is connected with foundation ring, this Connecting format can improve join strength, guarantees that again the flexural rigidity under circulation power load is constant, is a kind of high safety, non-maintaining, the basis of low cost of manufacture is the balance flange oppositely.
The technical scheme in the invention for solving the technical problem is:
Annular flange plate and outer ring flanged plate in the utility model is installed with respectively on the inside and outside wall of shell ring, be equipped with the bolt hole that is evenly distributed on interior annular flange plate and the outer ring flanged plate, interior annular flange plate and outer ring flanged plate bottom fixedly mount equilibrium block respectively, and the equilibrium block bottom is provided with step.
During the utility model erecting bed stretch-draw crab-bolt, not only make shell ring and basis go up the surface of contact pressurized of anchor slab, the balance surface of contact of equilibrium block is pressurized also, the pressure stress moment of flexure that this equilibrium surface produces can basic neutralisation acts on the tensile stress moment of shell ring by equilibrium block, eliminate the moment of flexure effect of equilibrium block and shell ring attachment weld, reduce the hoop tension of shell ring, it is stressed to reduce weld seam, simultaneously can guarantee that also the flexural rigidity under circulation power load is constant, can satisfy the force request of blower fan tower barrel fully, simultaneously also can save steel using amount, cut down finished cost.The utility model connected with being connected with the lengthening crab-bolt of foundation ring, can adopt stretch-draw device fastening, can accurately control the pretension value, thereby reach antifatigue and non-maintaining purpose, reduced maintenance cost.
Description of drawings
Fig. 1 is the reverse balance flange of a novel foundation tectonic maps;
Fig. 2 is the equilibrium block plan view;
Fig. 3 is the general assembly drawing of reverse balance flange of novel foundation and basic anchor slab.
Embodiment
During installation, shell ring 3 tops and tower tube are welded as a whole, and anchor slab 8, basis anchor slab 9 is down gone up on annular flange plate 1, outer ring flanged plate 2 and basis in connecting with lengthening crab-bolt 5 again.
Claims (1)
1. basic oppositely balance flange, comprise: interior annular flange plate (1), shell ring (3), it is characterized in that, annular flange plate (1) and outer ring flanged plate (2) in being installed with respectively on the inside and outside wall of shell ring (3), be equipped with the bolt hole (6) that is evenly distributed on interior annular flange plate (1) and the outer ring flanged plate (2), interior annular flange plate (1) and outer ring flanged plate (2) bottom fixedly mount equilibrium block (4) respectively, and equilibrium block (4) bottom is provided with step (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200930182U CN202040029U (en) | 2011-03-25 | 2011-03-25 | Base reversed balancing flange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200930182U CN202040029U (en) | 2011-03-25 | 2011-03-25 | Base reversed balancing flange |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202040029U true CN202040029U (en) | 2011-11-16 |
Family
ID=44967475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200930182U Expired - Lifetime CN202040029U (en) | 2011-03-25 | 2011-03-25 | Base reversed balancing flange |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202040029U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106894669A (en) * | 2017-01-13 | 2017-06-27 | 浙江大学 | The method for designing and purposes of blower foundation ring, blower foundation ring with wing plate |
| CN114248030A (en) * | 2021-11-25 | 2022-03-29 | 中建五洲工程装备有限公司 | Flatness control construction method before welding of tower drum flange |
-
2011
- 2011-03-25 CN CN2011200930182U patent/CN202040029U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106894669A (en) * | 2017-01-13 | 2017-06-27 | 浙江大学 | The method for designing and purposes of blower foundation ring, blower foundation ring with wing plate |
| CN114248030A (en) * | 2021-11-25 | 2022-03-29 | 中建五洲工程装备有限公司 | Flatness control construction method before welding of tower drum flange |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: INNER MONGOLIA OF GIMHAE NEW ENERGY TECHNOLOGY CO. Free format text: FORMER NAME: BAOTOU WIND POWER SCIENCE + TECHNOLOGY CO., LTD. OF CHINA WATER INVESTMENT GROUP |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 014030, 85, happiness South Road, rare earth hi tech Zone, the Inner Mongolia Autonomous Region, Baotou Patentee after: INNER MONGOLIA OF GIMHAE NEW ENERGY TECHNOLOGY CO., LTD. Patentee after: JIANGSU JINHAI NEW ENERGY TECHNOLOGY CO., LTD. Address before: 014030, 85, happiness South Road, rare earth hi tech Zone, the Inner Mongolia Autonomous Region, Baotou Patentee before: Baotou Wind Power Science & Technology Co., Ltd. Of China Water Investment Group Patentee before: Jiangsu Jinhai Wind Power Technology Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20111116 |
|
| CX01 | Expiry of patent term |