CN208167776U - A kind of Wind turbines finish rolling Bar Anchorage basis break structure - Google Patents
A kind of Wind turbines finish rolling Bar Anchorage basis break structure Download PDFInfo
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- CN208167776U CN208167776U CN201820500875.1U CN201820500875U CN208167776U CN 208167776 U CN208167776 U CN 208167776U CN 201820500875 U CN201820500875 U CN 201820500875U CN 208167776 U CN208167776 U CN 208167776U
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- finish rolling
- anchor bolt
- connector sleeve
- reinforcing bar
- strength anchor
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Abstract
The utility model discloses a kind of Wind turbines finish rolling Bar Anchorage basis break structures, including high-strength anchor bolt, connector sleeve, stop nut, supporting sleeve, fixture nut；Stop nut, connector sleeve sequentially successively screw in the top of finish rolling reinforcing bar, and after connector sleeve screw-in, need to loosen stop nut counter-tightened to avoid connecting between connector sleeve and finish rolling reinforcing bar；High-strength anchor bolt screw thread is tightened against on connector sleeve, after tightening, supporting sleeve is set on high-strength anchor bolt, and its bottom contacts at tower flange in the bottom, supporting sleeve covers the top of connector sleeve, stop nut and finish rolling reinforcing bar simultaneously, and supporting sleeve is stretched out outside the top of high-strength anchor bolt, and be screwed into fixture nut and carry out stretching preload.The utility model improves the tension performance of integral fastening structure, can lose to avoid tensioning pretightning force, improve basic fatigue capacity by giving one section of high-strength anchor bolt of finish rolling steel bar joining.
Description
Technical field
The utility model relates to the technical fields on Wind turbines finish rolling Bar Anchorage basis, refer in particular to a kind of Wind turbines
Finish rolling Bar Anchorage basis break structure.
Background technique
Finish rolling reinforcing bar is widely used in building structure earth anchor engineering, and there is connection to anchor, and easy, adhesion strength is strong, tensioning peace
Entirely, the advantages that easy for construction.But finish rolling reinforcing bar essence is spiral for building, is not able to satisfy machanical fastener standard to material
The requirement of matter, performance etc..With the progress and accumulation of knowledge of industry technology, it has been determined that finish rolling reinforcing bar cannot be used for wind-powered electricity generation row
Industry.But since finish rolling reinforcing bar price is far below high-strength anchor bolt, in China, Wind Power Development early stage, finish rolling reinforcing bar are also widely used in wind
The anchor bolt basis of motor group.It has now been found that anchor bolt breakage problem occur in multiple wind power plants using finish rolling reinforcing bar basis, gives machine
Group operation causes huge security risk.Due to the buried underground of anchor bolt, replacement is difficult with reparation, therefore takes before anchor bolt fracture
Precautionary measures are most economical reasonable schemes.
Compared to high-strength anchor bolt, finish rolling reinforcing bar has following features：
1, material hardness is big, and yield strength is high, and elastic property is poor, and brittleness is very big；
It 2, is rolling half-thread, it is small with matching nut contact area, it is easy to be broken in occlusal position；
3, tensioning is difficult, and pretightning force is easy to produce heavy losses；
4, accuracy of thread is low, and nut connection is easy to loosen.
The pretightning force of anchor bolt is most important to fatigue carrying, due to the above characteristic of finish rolling reinforcing bar, damages pretightning force seriously
It loses, fatigue capacity weakens rapidly.And finish rolling reinforcing bar anchor bolt major cause of failure, as pretightning force reduce caused fatigue
Fracture.
Known in the industry, the use on Wind turbines finish rolling Bar Anchorage basis is the not mature enough table of Wind Power Development earlier technique
It is existing, it there is no thorough solution at present.Be broken serious wind field in certain basic finish rolling reinforcing bar anchor bolts, take dig vertical shaft into
Enter foundation bottom, the method that finish rolling reinforcing bar is changed to steel strand wires, but program cost is high, and the duration is very long, and simultaneously uncomfortable
For all foundation soil types.
Utility model content
The shortcomings that the purpose of the utility model is to overcome the prior arts and deficiency propose a kind of safe and reliable wind-powered electricity generation
Unit finish rolling Bar Anchorage basis break structure improves integral fastening structure by giving one section of high-strength anchor bolt of finish rolling steel bar joining
Tension performance, can be lost to avoid tensioning pretightning force, improve basic fatigue capacity.
To achieve the above object, technical solution provided by the utility model is：A kind of Wind turbines finish rolling Bar Anchorage
Basic break structure includes high-strength anchor bolt, connector sleeve, stop nut, supporting sleeve, fixture nut；The connector sleeve is two
End band internal thread high-strength oil casing structure, one end are connect with finish rolling screw thread steel, and the other end and high-strength anchor bolt screw thread connect
It connects；The stop nut, connector sleeve sequentially successively screw in finish rolling reinforcing bar top, and after connector sleeve screw-in after, need by
Stop nut counter-tightened loosens to avoid connecting between connector sleeve and finish rolling reinforcing bar, wherein the finish rolling reinforcing bar is to wear vertically
Cross the tower flange in the bottom of Wind turbines；The high-strength anchor bolt screw thread is tightened against on connector sleeve, after tightening, the supporting sleeve
It is set on high-strength anchor bolt, and its bottom contacts at tower flange in the bottom, while the supporting sleeve covers connector sleeve, locking spiral shell
Female and finish rolling reinforcing bar top, and supporting sleeve is stretched out outside the top of the high-strength anchor bolt, and be screwed into fixture nut and stretched
It pre-tightens.
Clip pad has gasket between the fixture nut and the top of supporting sleeve.
The utility model compared with prior art, has the following advantages that and beneficial effect：
By adding one section of high-strength anchor bolt on finish rolling reinforcing bar top, increasing the elastoplasticity of entire foundation anchor structure and opening
Drawing ability is easier to maintain the pretightning force of anchor structure, in this way when basis carrying, becomes by the elasticity of top high-strength anchor bolt
Shape is buffered, can be to avoid violent fatigue stress is generated inside finish rolling reinforcing bar, to improve finish rolling Bar Anchorage basis
Safety solves the problems, such as that finish rolling reinforcing bar is caused to be broken.It is broken in addition, this programme does not generate original basis structure and tower structure
It is bad, unit operation risk can be reduced to greatest extent.
Detailed description of the invention
Fig. 1 is one of the scheme of installation of Wind turbines finish rolling Bar Anchorage basis break structure (cross-sectional view).
Fig. 2 is two (single unilateral side appearances of the scheme of installation of Wind turbines finish rolling Bar Anchorage basis break structure
Figure).
Fig. 3 is the connection schematic diagram of finish rolling reinforcing bar and high-strength anchor bolt.
Fig. 4 is the structural schematic diagram of supporting sleeve.
Specific embodiment
The utility model is described in further detail combined with specific embodiments below.
Referring to FIG. 1 to FIG. 4, Wind turbines finish rolling Bar Anchorage basis break structure provided by the present embodiment, packet
High-strength anchor bolt 1, connector sleeve 2, stop nut 3, supporting sleeve 4, fixture nut 5, gasket 6 are included；The connector sleeve 2 is both ends band
Internal thread high-strength oil casing structure, one end are threadedly coupled with finish rolling reinforcing bar 7, and the other end is threadedly coupled with high-strength anchor bolt 1；
The stop nut 3, connector sleeve 2 sequentially successively screw in finish rolling reinforcing bar 1 top, and after connector sleeve 2 screw-in after, need by
3 counter-tightened of stop nut loosens to avoid connecting between connector sleeve 2 and finish rolling reinforcing bar 7, wherein the finish rolling reinforcing bar 7 is perpendicular
Direct puncture crosses the tower flange in the bottom 8 of Wind turbines, and has in the inside and outside two sides of tower 9；1 screw thread of high-strength anchor bolt is tightened against
On connector sleeve 2, after tightening, the supporting sleeve 4 is set on high-strength anchor bolt 1, and its bottom contacts at tower flange in the bottom
8, while the supporting sleeve 4 covers the top of connector sleeve 2, stop nut 3 and finish rolling reinforcing bar 7, and the high-strength anchor bolt 1 is upper
Supporting sleeve 4 is stretched out outside portion, and is screwed into fixture nut 5 and is carried out stretching preload, meanwhile, the fixture nut 5 and supporting sleeve 4
Clip pad has gasket 6 between top.
In conclusion the utility model increases entire basis by adding one section of high-strength anchor bolt on finish rolling reinforcing bar top
The elastoplasticity and tensioning ability of anchor structure, are easier to maintain the pretightning force of anchor structure, in this way when basis carrying, rely on
The flexible deformation of top high-strength anchor bolt is buffered, and can be solved to avoid violent fatigue stress is generated inside finish rolling reinforcing bar
The problem of causing finish rolling reinforcing bar to be broken, so that the safety on finish rolling Bar Anchorage basis is improved, in addition, this programme is not to original basis
Structure and tower structure generate destruction, can reduce unit operation risk to greatest extent, have actual promotional value, are worth pushing away
Extensively.
Embodiment described above is only the preferred embodiment of the utility model, and the implementation of the utility model is not limited with this
Range, therefore all shapes according to the utility model, change made by principle, it should all cover within the protection scope of the present utility model.
Claims (2)
1. a kind of Wind turbines finish rolling Bar Anchorage basis break structure, it is characterised in that：Include high-strength anchor bolt, connector sleeve,
Stop nut, supporting sleeve, fixture nut；The connector sleeve be both ends band internal thread high-strength oil casing structure, one end with
The connection of finish rolling screw thread steel, the other end are threadedly coupled with high-strength anchor bolt；The stop nut, connector sleeve are sequentially successively
The top of finish rolling reinforcing bar is screwed in, and after connector sleeve screw-in, it need to be by stop nut counter-tightened, to avoid connector sleeve and finish rolling steel
It connects and loosens between muscle, wherein the finish rolling reinforcing bar is the tower flange in the bottom for passing vertically through Wind turbines；The high-strength anchor bolt
Screw thread is tightened against on connector sleeve, and after tightening, the supporting sleeve is set on high-strength anchor bolt, and its bottom contacts at tower bottom
Portion's flange, while the supporting sleeve covers the top of connector sleeve, stop nut and finish rolling reinforcing bar, and the high-strength anchor bolt is upper
Supporting sleeve is stretched out outside portion, and is screwed into fixture nut and is carried out stretching preload.
2. a kind of Wind turbines finish rolling Bar Anchorage basis break structure according to claim 1, it is characterised in that：It is described
Clip pad has gasket between fixture nut and the top of supporting sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820500875.1U CN208167776U (en) | 2018-04-10 | 2018-04-10 | A kind of Wind turbines finish rolling Bar Anchorage basis break structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820500875.1U CN208167776U (en) | 2018-04-10 | 2018-04-10 | A kind of Wind turbines finish rolling Bar Anchorage basis break structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208167776U true CN208167776U (en) | 2018-11-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820500875.1U Active CN208167776U (en) | 2018-04-10 | 2018-04-10 | A kind of Wind turbines finish rolling Bar Anchorage basis break structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN208167776U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110130424A (en) * | 2019-05-06 | 2019-08-16 | 同济大学 | Prestressed bolt blower foundation reinforcement means |
-
2018
- 2018-04-10 CN CN201820500875.1U patent/CN208167776U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110130424A (en) * | 2019-05-06 | 2019-08-16 | 同济大学 | Prestressed bolt blower foundation reinforcement means |
| CN110130424B (en) * | 2019-05-06 | 2020-08-14 | 同济大学 | Method for reinforcing prestressed anchor bolt fan foundation |
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