CN203947487U - Wind turbine tower basis prestressing force crab-bolt - Google Patents
Wind turbine tower basis prestressing force crab-bolt Download PDFInfo
- Publication number
- CN203947487U CN203947487U CN201420293117.9U CN201420293117U CN203947487U CN 203947487 U CN203947487 U CN 203947487U CN 201420293117 U CN201420293117 U CN 201420293117U CN 203947487 U CN203947487 U CN 203947487U
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- China
- Prior art keywords
- crab
- bolt
- polished rod
- rod section
- heat shrinking
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- Expired - Lifetime
Links
- 238000005260 corrosion Methods 0.000 abstract description 6
- 230000007797 corrosion Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 3
- 239000004567 concrete Substances 0.000 description 6
- 230000005611 electricity Effects 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
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- Wind Motors (AREA)
Abstract
A kind of wind turbine tower basis prestressing force crab-bolt, comprise crab-bolt upper end thread segment, crab-bolt lower end thread segment, upper screw thread and polished rod changeover portion, lower screw thread and polished rod changeover portion, crab-bolt polished rod section, thin heat shrinking sleeve, thick heat shrinking sleeve, it is characterized in that after described crab-bolt polished rod section oiling, in thin heat shrinking sleeve suit crab-bolt polished rod section, described thick heat shrinking sleeve is sleeved on the bottom of crab-bolt polished rod section, thin heat shrinking sleeve is plugged between thick heat shrinking sleeve and crab-bolt polished rod section, crab-bolt upper end thread segment is positioned at the upper end of crab-bolt polished rod section, crab-bolt lower end thread segment is positioned at the lower end of crab-bolt polished rod section, described upper screw thread and polished rod changeover portion are positioned at the changeover portion of crab-bolt upper end thread segment and crab-bolt polished rod section, lower screw thread and polished rod changeover portion are positioned at the changeover portion of crab-bolt lower end thread segment and crab-bolt polished rod section, crab-bolt adopts hydraulic tensioning method to apply pretension to crab-bolt, mechanical property and the Corrosion Protection on prestressing force crab-bolt basis have been strengthened, safety and the durability of blower fan pylon have been improved.
Description
Technical field
The utility model belongs to manufacture field, wind turbine tower basis, is specifically related to a kind of basic prestressing force crab-bolt that runs through whole height of foundation, particularly relates to a kind of wind turbine tower basis prestressing force crab-bolt.
Background technology
China's generation power foundation of wind power mostly is the board-like independent spread footing of steel concrete.This kind of basic advantage is to construct comparatively easy and engineering practice abundant; Realized with being connected by flush type tower cylinder of upper column cylinder on basis; When power of fan is less, sole plate is encorbelmented hour, and this base form is more reasonable.But there is following outstanding shortcoming in the board-like independent spread footing of steel concrete: base form is too single, can not adapt to different geological conditions; The stressed maximum cross-section of flush type tower barrel base stub strength and stiffness diminish suddenly, easily cause stress to concentrate and brittle fracture; For high-power blower, slab foundation cantilever span is too large, less economical.
Summary of the invention
The purpose of this utility model is exactly the problem that will exist for above-mentioned traditional blower foundation, self reality in conjunction with prestressing force crab-bolt basis, provides a kind of overall performance superior, and stress performance is good, security performance is reliable, more fast and easily wind turbine tower basis prestressing force crab-bolt.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of wind turbine tower basis prestressing force crab-bolt, comprise crab-bolt upper end thread segment, crab-bolt lower end thread segment, upper screw thread and polished rod changeover portion, lower screw thread and polished rod changeover portion, crab-bolt polished rod section, thin heat shrinking sleeve, thick heat shrinking sleeve, it is characterized in that after described crab-bolt polished rod section oiling, thin heat shrinking sleeve being set with in crab-bolt polished rod section, described thick heat shrinking sleeve is sleeved on the bottom of crab-bolt polished rod section, thin heat shrinking sleeve is plugged between thick heat shrinking sleeve and crab-bolt polished rod section, crab-bolt upper end thread segment is positioned at the upper end of crab-bolt polished rod section, crab-bolt lower end thread segment is positioned at the lower end of crab-bolt polished rod section, described upper screw thread and polished rod changeover portion are positioned at the changeover portion of crab-bolt upper end thread segment and crab-bolt polished rod section, lower screw thread and polished rod changeover portion are positioned at the changeover portion of crab-bolt lower end thread segment and crab-bolt polished rod section.
Further illustrate, a kind of wind turbine tower of the utility model basis prestressing force crab-bolt, runs through whole height of foundation, adopts hydraulic tensioning method to apply pretension to crab-bolt, has increased the storage elastic potential energy of crab-bolt, has improved basic mechanical property.Crab-bolt adopts whole Dacroments to process, guaranteed the ability of the water-fast heat-resisting and resisting salt fog corrosion of crab-bolt in complicated geological environment, after the oiling of crab-bolt polished rod section, add wind-powered electricity generation special thin heat shrinking sleeve and thick heat shrinking sleeve simultaneously, equal to have added again one deck insurance to crab-bolt, it can effectively be kept apart crab-bolt body and external environment, and crab-bolt is not directly contacted with the external world.
Further illustrate, a kind of wind turbine tower of the utility model basis prestressing force crab-bolt, taken into full account the planform on wind turbine tower basis, utilize wind-power electricity generation prestressing force crab-bolt self front end wide-angle Special chamfering to improve the guidance quality of crab-bolt in installation process, crab-bolt is carried out to whole Dacroment processing, make the ability water-fast heat-resisting and resisting salt fog corrosion of crab-bolt reach the requirement of regulation.
Operating principle and the construction sequence of a kind of wind turbine tower of the utility model basis prestressing force crab-bolt are:
1, be first to carrying out whole Dacroment processing by the crab-bolt that Special chamfering machine is finished down wide-angle guide angle, make the ability water-fast heat-resisting and resisting salt fog corrosion of crab-bolt reach the requirement of regulation;
2, in wind-powered electricity generation special thin heat shrinking sleeve suit crab-bolt polished rod section, thick heat shrinking sleeve is sleeved on the bottom of crab-bolt polished rod section, and thin heat shrinking sleeve is plugged between thick heat shrinking sleeve and crab-bolt polished rod section;
3, finally carry out crab-bolt upper end thread segment, crab-bolt lower end thread segment, upper screw thread and polished rod changeover portion, lower screw thread and polished rod changeover portion and the whole protection work of wind turbine tower basis prestressing force crab-bolt.
The usefulness of a kind of wind turbine tower of the utility model basis prestressing force crab-bolt is:
A wind turbine tower basis prestressing force crab-bolt, the problem that board-like independent spread footing exists for steel concrete, adopts prestressing force crab-bolt basis, and crab-bolt runs through the through sole plate of whole height of foundation, good integrity; Adopt high-strength bolt hydraulic stretching device to apply pretension accurately to crab-bolt, upper and lower anchor slab is exerted pressure to steel concrete, and basis is subject to the curved used time of doing, and concrete compressive stress discharges but to some extent all the time in pressured state, concrete does not produce crack, and its durability is improved; In Foundation pier, vertical reinforcement is stressed hardly, only needs by the nonprestressed reinforcement in structure configuration prestressed reinforced concrete; Reinforcing bar and crab-bolt intersection are set up, and do not affect mutually and intert, and base integral is good, and construction is convenient.Wind turbine tower basis prestressing force crab-bolt is under the duplicate protection of whole Dacroments and the special-purpose heat shrinking sleeve of wind-powered electricity generation; the anti-corrosion capability of crab-bolt is greatly improved; make wind power tower prestressing force basis can be applicable to more complex environment; offshore wind farm project particularly; thereby greatly accelerated installation rate, saved installation cost
Prestressing force crab-bolt is as the important composition parts on prestressing force crab-bolt basis, run through whole height of foundation, the form that it has not only enriched wind-powered electricity generation basis, has more strengthened mechanical property and the Corrosion Protection on prestressing force crab-bolt basis, thereby has greatly improved safety and the durability of blower fan pylon.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is I portion enlarged drawing in Fig. 1;
Fig. 3 is II portion enlarged drawing in Fig. 1.
In Fig. 1 to Fig. 3: screw thread and polished rod changeover portion, 4-crab-bolt polished rod section, the thin heat shrinking sleeve of 5-, the thick heat shrinking sleeve of 6-under 1-crab-bolt upper end thread segment, 2-crab-bolt lower end thread segment, the upper screw thread of 3-and polished rod changeover portion, 31-.
The specific embodiment
Below in conjunction with Figure of description, further illustrate the utility model.
A kind of wind turbine tower basis prestressing force crab-bolt, comprise crab-bolt upper end thread segment 1, crab-bolt lower end thread segment 2, upper screw thread and polished rod changeover portion 3, lower screw thread and polished rod changeover portion 31, crab-bolt polished rod section 4, thin heat shrinking sleeve 5, thick heat shrinking sleeve 6, it is characterized in that after described crab-bolt polished rod section 4 oilings, by on 4 sections, thin heat shrinking sleeve 5 suit crab-bolt polished rod, described thick heat shrinking sleeve 6 is sleeved on the bottom of 4 sections, crab-bolt polished rod, thin heat shrinking sleeve 5 is plugged between thick heat shrinking sleeve 6 and crab-bolt polished rod section 4, crab-bolt upper end thread segment 1 is positioned at the upper end of crab-bolt polished rod section 4, crab-bolt lower end thread segment 2 is positioned at the lower end of crab-bolt polished rod section 4, described upper screw thread and polished rod changeover portion 3 are positioned at the changeover portion of crab-bolt upper end thread segment 1 and crab-bolt polished rod section 4, lower screw thread and polished rod changeover portion 31 are positioned at the changeover portion of crab-bolt lower end thread segment 2 and crab-bolt polished rod section 4.
Claims (1)
1. wind turbine tower basis prestressing force crab-bolt, comprise two crab-bolt upper end thread segments, crab-bolt lower end thread segment, upper screw thread and polished rod changeover portion, lower screw thread and polished rod changeover portion, crab-bolt polished rod section, thin heat shrinking sleeve, thick heat shrinking sleeve, it is characterized in that in described thin heat shrinking sleeve suit crab-bolt polished rod section, described thick heat shrinking sleeve is sleeved on the bottom of crab-bolt polished rod section, thin heat shrinking sleeve is plugged between thick heat shrinking sleeve and crab-bolt polished rod section, crab-bolt upper end thread segment is positioned at the upper end of crab-bolt polished rod section, crab-bolt lower end thread segment is positioned at the lower end of crab-bolt polished rod section, described upper screw thread and polished rod changeover portion are positioned at the changeover portion of crab-bolt upper end thread segment and crab-bolt polished rod section, lower screw thread and polished rod changeover portion are positioned at the changeover portion of crab-bolt lower end thread segment and crab-bolt polished rod section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420293117.9U CN203947487U (en) | 2014-05-26 | 2014-05-26 | Wind turbine tower basis prestressing force crab-bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420293117.9U CN203947487U (en) | 2014-05-26 | 2014-05-26 | Wind turbine tower basis prestressing force crab-bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203947487U true CN203947487U (en) | 2014-11-19 |
Family
ID=51889534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420293117.9U Expired - Lifetime CN203947487U (en) | 2014-05-26 | 2014-05-26 | Wind turbine tower basis prestressing force crab-bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203947487U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104846824A (en) * | 2015-05-25 | 2015-08-19 | 曾庆义 | Protective rod, rod for concrete structure, manufacturing process of rod body and anchor rod |
| CN112681367A (en) * | 2021-01-21 | 2021-04-20 | 郑州中原思蓝德高科股份有限公司 | Glue injection sleeve and glue injection device |
-
2014
- 2014-05-26 CN CN201420293117.9U patent/CN203947487U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104846824A (en) * | 2015-05-25 | 2015-08-19 | 曾庆义 | Protective rod, rod for concrete structure, manufacturing process of rod body and anchor rod |
| CN112681367A (en) * | 2021-01-21 | 2021-04-20 | 郑州中原思蓝德高科股份有限公司 | Glue injection sleeve and glue injection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141119 |