CN103277259A - Method for preventing inner flange joint faces of wind power towers from cracking - Google Patents
Method for preventing inner flange joint faces of wind power towers from cracking Download PDFInfo
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- CN103277259A CN103277259A CN2013101431895A CN201310143189A CN103277259A CN 103277259 A CN103277259 A CN 103277259A CN 2013101431895 A CN2013101431895 A CN 2013101431895A CN 201310143189 A CN201310143189 A CN 201310143189A CN 103277259 A CN103277259 A CN 103277259A
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- wedge
- inner flange
- arc
- pylon
- wind power
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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
- Y02E10/728—Onshore wind turbines
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Abstract
The invention discloses a method for preventing inner flange joint faces of wind power towers from cracking. The method includes the following steps: step one, on the inner side of the inner flanges of towers, a slope opening is formed in an inner flange butt joint face of each of the two towers in advance, and a wedge-shaped groove with the inner side narrow and the outer side wide is formed after the two slope openings are made to be close to each other in a butting mode; step two, the inner flanges of the two towers are joined in a butting mode and locked by a circle of flange bolts; step three, an arc-shaped wedge is used, the narrow edge side of the arc-shaped wedge is inserted into the wedge-shaped groove, and the upper side bevel and the lower side bevel of the arc-shaped wedge are pressed against the two slope openings of the wedge-shaped groove in an abutting mode; the step four, the outer end of the arc-shaped wedge is made to be pressed from interior to exterior in the radial direction. The method for preventing the inner flange joint faces of the wind power towers from cracking is provided, and therefore the method can effectively prevent the inner flange joint faces of the towers from cracking, and has the effect of safety protection.
Description
[technical field]
The present invention relates to the anti-cracking method of a kind of wind power tower inner flange junction plane, belong to wind power generation field.
[background technique]
Traditional wind power tower inner flange mostly is " L " shape structure, and flange is to connect by flange bolt singlely.In the using process of reality, because the as easy as rolling off a log inner flange junction plane cracking that causes of the effect of external load causes the linking intensity of flange bolt structure to reduce, has very high risk.
[summary of the invention]
The objective of the invention is to overcome the present flange mating face deficiency of cracking easily, provide a kind of for the anti-cracking method of wind power tower outward flange junction plane, this method can prevent pylon inner flange junction plane cracking effectively, plays the effect of safety protection.
The present invention has adopted following technical proposals:
A kind of wind power tower inner flange junction plane is prevented the cracking method, comprises the steps:
The first step: in pylon inner flange inboard, on two pylon inner flange interfaces the slope mouth is set respectively in advance, two slope mouths are to narrow outer wide wedge slot in forming by the back;
Second step: lock with the butt joint of two pylon inner flanges and with a circle flange bolt;
The 3rd step: use the arc wedge, narrow limit one side of arc wedge is inserted in the wedge slot, and the upper and lower skew back face of arc wedge roof pressure is on two slope mouths of wedge slot;
The 4th step: make arc wedge outer end be subjected to from inside to outside radially compaction forces, arc wedge pressure passes to two slope mouths of wedge slot, after two slope mouths are subjected to radial pressure, its pressure portion of bearing is transformed into the tension force that two pylon inner flanges axially deviate from, this tension force that axially deviates from is by preserving locking drag between bolt and the two pylon inner flanges, thereby makes and firmly connect the loosening purpose that reaches the anti-cracking of pylon inner flange junction plane between the two pylon inner flanges.
A kind of wind power tower inner flange junction plane is prevented the cracking method as mentioned above, it is characterized in that: the 4th the step in: locking long arc plate link to each other with two pylon inner flanges by chek bolt and locking long arc plate roof pressure in arc wedge outer end, by the pretension chek bolt, locking long arc plate imposes on the arc wedge to locking drag, by the arc wedge locking drag is passed to two pylon inner flanges then.
The anti-cracking method of a kind of wind power tower inner flange junction plane is characterized in that: can increase or reduce locking long arc plate width according to pylon inner flange size as mentioned above.
The present invention with respect to the beneficial effect of prior art is:
1, among the present invention near the mutual bonding surfaces of two pylon inner flanges, two pylon inner flange inboards have the slope mouth, when two pylon inner flanges were fitted mutually, the slope mouth on the two pylon inner flanges was mutually near forming a wedge slot like this; The arc wedge is inserted in this wedge slot the upper and lower side applying of arc wedge wedge slot both sides; Locking long arc plate two ends are linked to each other with two pylon inner flanges by chek bolt respectively and locking long arc plate roof pressure in arc wedge outer end, by the pretension chek bolt, locking long arc plate imposes on the arc wedge to locking drag, by the arc wedge locking drag is passed to two pylon inner flanges then, thereby reach the purpose of the anti-cracking of pylon inner flange junction plane, simple in structure, easy to use.
2, can increase or reduce the width of short arc plate, locking long arc plate according to pylon inner flange size, further two pylon inner flanges prevent the junction plane cracking, play the effect of safety protection.
[description of drawings]
Fig. 1 is two pylon inner flange linkage structure schematic representation among the present invention.
Fig. 2 is anti-cracking device and two pylon inner flange linkage structure schematic representation among the present invention.
Fig. 3 is anti-cracking device and two pylon inner flange linkage structure cut-away views among the present invention.
Fig. 4 is anti-cracking device perspective view among the present invention.
Fig. 5 is arc wedge perspective view among the present invention.
[embodiment]
To shown in Figure 5, pylon barrel 6 is connected by two pylon inner flanges 8 with pylon barrel 9 as Fig. 1.A kind of wind power tower inner flange junction plane is prevented the cracking method, comprises the steps:
The first step: in pylon inner flange 8 inboards, on two pylon inner flange interfaces the slope mouth is set respectively in advance, two slope mouths are to narrow outer wide wedge slot 10 in forming by the back;
Second step: lock with the butt joint of two pylon inner flanges and with a circle flange bolt 7;
The 3rd step: use arc wedge 5, narrow limit one side of arc wedge is inserted in the wedge slot, and the upper and lower skew back face of arc wedge roof pressure is on two slope mouths of wedge slot;
The 4th step: make arc wedge outer end be subjected to from inside to outside radially compaction forces, arc wedge pressure passes to two slope mouths of wedge slot, after two slope mouths are subjected to radial pressure, its pressure portion of bearing is transformed into the tension force that two pylon inner flanges axially deviate from, this tension force that axially deviates from is by preserving locking drag between bolt and the two pylon inner flanges, thereby makes and firmly connect the loosening purpose that reaches the anti-cracking of pylon inner flange junction plane between the two pylon inner flanges.
Preferred implementation: in the 4th step: locking long arc plate 4 link to each other with two pylon inner flanges 8 by chek bolt 3 and locking long arc plate 4 roof pressures in arc wedge 5 outer ends, by pretension chek bolt 3, locking long arc plate 4 imposes on arc wedge 5 to locking drag, by arc wedge 5 locking drag is passed to two pylon inner flanges 8 then.
For locking long arc plate 4 is installed, be reserved with boss 11 near two pylon inner flanges, 8 mutual bonding surfaces inboards, form draw-in groove between boss 11 and its place pylon inner flange 8 inner edge flangings, two short arc plates 2 are stuck in the draw-in groove on the upper and lower two pylon inner flanges 8, and locking long arc plate 4 upper and lower ends are locked by chek bolt 3 and two short arc plates 2 respectively.
Further improve: two short arc plates 2, locking long arc plate 4, arc wedge 5 and the chek bolt 3 that is connected short arc plate 2, locking long arc plate 4 are formed an anti-cracking device 1(and are seen Fig. 1), anti-cracking device 1 can adopt a plurality of, and each anti-cracking device 1 is uniform along pylon inner flange 8 inner circumferences; Can increase or reduce anti-cracking device 1 number according to pylon inner flange 8 sizes.
Further improve: the width that can increase or reduce short arc plate 2, locking long arc plate 4 according to pylon inner flange 8 sizes.
Above-described embodiment is preferred embodiment of the present invention; but embodiments of the present invention are not subjected to the restriction of above-described embodiment; change, the decoration of doing under other any the present invention of not deviating from spirit essence and the principle, substitute, combination or simplify the substitute mode that all should be equivalent, be included in protection scope of the present invention.
Claims (3)
1. the anti-cracking method of wind power tower inner flange junction plane is characterized in that comprising the steps:
The first step: in pylon inner flange inboard, on two pylon inner flange interfaces the slope mouth is set respectively in advance, two slope mouths are to narrow outer wide wedge slot in forming by the back;
Second step: lock with the butt joint of two pylon inner flanges and with a circle flange bolt;
The 3rd step: use the arc wedge, narrow limit one side of arc wedge is inserted in the wedge slot, and the upper and lower skew back face of arc wedge roof pressure is on two slope mouths of wedge slot;
The 4th step: make arc wedge outer end be subjected to from inside to outside radially compaction forces.
2. according to the anti-cracking method of the described a kind of wind power tower inner flange junction plane of claim 1, it is characterized in that: the 4th the step in: locking long arc plate link to each other with two pylon inner flanges by chek bolt and locking long arc plate roof pressure in arc wedge outer end, by the pretension chek bolt, locking long arc plate imposes on the arc wedge to locking drag, by the arc wedge locking drag is passed to two pylon inner flanges then.
3. according to the anti-cracking method of the described a kind of wind power tower inner flange junction plane of claim 1, it is characterized in that: can increase or reduce locking long arc plate width according to pylon inner flange size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101431895A CN103277259A (en) | 2013-04-23 | 2013-04-23 | Method for preventing inner flange joint faces of wind power towers from cracking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101431895A CN103277259A (en) | 2013-04-23 | 2013-04-23 | Method for preventing inner flange joint faces of wind power towers from cracking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103277259A true CN103277259A (en) | 2013-09-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101431895A Pending CN103277259A (en) | 2013-04-23 | 2013-04-23 | Method for preventing inner flange joint faces of wind power towers from cracking |
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| CN (1) | CN103277259A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110016969A (en) * | 2019-05-06 | 2019-07-16 | 河南绿建建筑科技有限公司 | Steel concrete compound tube upper and lower level rapid abutting joint and temporary fastening device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB826905A (en) * | 1958-06-09 | 1960-01-27 | Ernest William Borer | A wedge appliance for separating or forcing apart abutted together flanges of articles |
| GB1004702A (en) * | 1961-09-16 | 1965-09-15 | Berkefeld Filter Ges Und Celle | Sectional pressure tanks |
| US3997957A (en) * | 1974-08-14 | 1976-12-21 | Hokko Co., Ltd. | Device for replacing packings of flange joints |
| US4003590A (en) * | 1973-11-23 | 1977-01-18 | Walter Hefel | Fluid-tight flange coupling and method of making the same |
| DE3113912A1 (en) * | 1981-04-07 | 1982-10-28 | Günter 7518 Bretten Hemmrich | Device for the tight connection of two hollow bodies |
-
2013
- 2013-04-23 CN CN2013101431895A patent/CN103277259A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB826905A (en) * | 1958-06-09 | 1960-01-27 | Ernest William Borer | A wedge appliance for separating or forcing apart abutted together flanges of articles |
| GB1004702A (en) * | 1961-09-16 | 1965-09-15 | Berkefeld Filter Ges Und Celle | Sectional pressure tanks |
| US4003590A (en) * | 1973-11-23 | 1977-01-18 | Walter Hefel | Fluid-tight flange coupling and method of making the same |
| US3997957A (en) * | 1974-08-14 | 1976-12-21 | Hokko Co., Ltd. | Device for replacing packings of flange joints |
| DE3113912A1 (en) * | 1981-04-07 | 1982-10-28 | Günter 7518 Bretten Hemmrich | Device for the tight connection of two hollow bodies |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110016969A (en) * | 2019-05-06 | 2019-07-16 | 河南绿建建筑科技有限公司 | Steel concrete compound tube upper and lower level rapid abutting joint and temporary fastening device |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130904 |