CN205578191U - Prevent structure of fan tower section of thick bamboo bolt shearing - Google Patents
Prevent structure of fan tower section of thick bamboo bolt shearing Download PDFInfo
- Publication number
- CN205578191U CN205578191U CN201620370462.7U CN201620370462U CN205578191U CN 205578191 U CN205578191 U CN 205578191U CN 201620370462 U CN201620370462 U CN 201620370462U CN 205578191 U CN205578191 U CN 205578191U
- Authority
- CN
- China
- Prior art keywords
- thick bamboo
- flange
- tower section
- tower
- lower flange
- 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 - Fee Related
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Classifications
-
- 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
-
- 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
Abstract
The utility model discloses a prevent structure of fan tower section of thick bamboo bolt shearing, include a first tower section of thick bamboo, a second tower section of thick bamboo, go up flange and lower flange, the welding of a first tower section of thick bamboo and last flange, a second tower section of thick bamboo and lower flange welding are gone up the flange and are passed through bolted connection with the lower flange, relative with the lower flange face of last flange go up the corresponding keyway that is equipped with, be equipped with the key in the keyway. The utility model discloses a set key bears the shearing force of a tower section of thick bamboo between last flange and lower flange, reaches to prevent that the bolt receives the function that acts on in the shearing, guaranteed that tower section of thick bamboo connecting bolt is not by shear failure, the utility model discloses still has simple structure, easily the advantage of installation and maintenance.
Description
Technical field
This utility model belongs to wind power generation field, relates to a kind of structure preventing blower fan tower barrel bolt from shearing.
Background technology
Tower is the critical component of blower fan, plays a supportive role blower fan, the security relationship of tower to the safety of whole blower fan, and once tower is destroyed to collapse and will be caused the damage of whole blower fan.Tower height is typically between 75 meters-120 meters, it is considered to the manufacture of tower, transport and the factor such as installation, is generally divided into four joints, is often connected with by flange between joint tower.The stress of tower is extremely complex, under extreme operating condition or chronic fatigue load, is susceptible to risk of collapsing, and is main cause owing to connecting bolt inefficacy causes collapse accident.Bolt is under the repeated action of wind load, and pretightning force can be more and more lower, it is generally required to periodic maintenance, if safeguarding that pretightning force can cause flange resistant slide scarce capacity not, so that bolt is cut not in time, easily causing bolt shear fracture causes blower fan to collapse, and leads to serious accident.
Summary of the invention
In order to solve above-mentioned technical problem, this utility model provides a kind of simple in construction, and can ensure the structure preventing blower fan tower barrel bolt from shearing of the safety of tower.
This utility model offer techniques below scheme: a kind of structure preventing blower fan tower barrel bolt from shearing, including the first tower, the second tower, upper flange and lower flange；The first described tower is welded with upper flange, and the second tower is welded with lower flange, and upper flange is bolted with lower flange；Corresponding on the face that described upper flange is relative with lower flange it is provided with keyway, in keyway, is provided with key.
Above-mentioned prevents in the structure that blower fan tower barrel bolt is sheared, and described keyway is annular, and key uses annular key.
Above-mentioned prevents in the structure that blower fan tower barrel bolt is sheared, and described key is made up of multistage arc key.
Compared with prior art, the beneficial effects of the utility model are:
This utility model arranges key between the face that upper flange and lower flange are relative, the when of there is sliding between upper flange and lower flange, key assume responsibility for the shearing force that sliding produces, it is ensured that tower connecting bolt is not sheared destruction, thus the accident collapsed after avoiding bolt shear fracture；This use is novel also has simple in construction, it is easy to the advantage installed and safeguard.
Accompanying drawing explanation
Fig. 1 is existing blower fan tower barrel attachment structure schematic diagram.
Fig. 2 is structural representation of the present utility model.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is further described.
As in figure 2 it is shown, this utility model includes first tower the 4, second tower 1, upper flange 3 and lower flange 2；The first described tower 4 is welded with upper flange 3, and the second tower 1 is welded with lower flange 2, and upper flange 3 is connected by bolt 5 with lower flange 2.On the face that described upper flange 3 is relative with lower flange 2, the corresponding annular keyway that is provided with, is provided with the key 6 of annular in annular keyway.For the ease of key 6 processing, transport and install, key 6 can be made up of the key of multistage arc.
This utility model increases keyway and the structure of key 6 between lower flange 2 and upper flange 3, the when of there is sliding between lower flange 2 and upper flange 3, first the shearing force that sliding causes is undertaken by key 6, it is ensured that bolt 5 will not be acted on by shearing force, it is ensured that the safety of tower.
Claims (3)
1. the structure preventing blower fan tower barrel bolt from shearing, is characterized in that: include the first tower, the second tower, upper flange and lower flange；The first described tower is welded with upper flange, and the second tower is welded with lower flange, and upper flange is bolted with lower flange；Corresponding on the face that described upper flange is relative with lower flange it is provided with keyway, in keyway, is provided with key.
The structure preventing blower fan tower barrel bolt from shearing the most according to claim 1, is characterized in that: described keyway is annular, and key uses annular key.
The structure preventing blower fan tower barrel bolt from shearing the most according to claim 2, is characterized in that: described key is made up of multistage arc key.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620370462.7U CN205578191U (en) | 2016-04-28 | 2016-04-28 | Prevent structure of fan tower section of thick bamboo bolt shearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620370462.7U CN205578191U (en) | 2016-04-28 | 2016-04-28 | Prevent structure of fan tower section of thick bamboo bolt shearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205578191U true CN205578191U (en) | 2016-09-14 |
Family
ID=56857675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620370462.7U Expired - Fee Related CN205578191U (en) | 2016-04-28 | 2016-04-28 | Prevent structure of fan tower section of thick bamboo bolt shearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205578191U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109899371A (en) * | 2019-02-26 | 2019-06-18 | 中铁工程装备集团隧道设备制造有限公司 | A kind of connection bolt protecting device and flange connection |
| CN111720268A (en) * | 2019-03-20 | 2020-09-29 | 北京金风科创风电设备有限公司 | Tower section of thick bamboo, pylon and wind generating set |
| CN114517804A (en) * | 2022-02-14 | 2022-05-20 | 陈国强 | Device capable of effectively preventing bolt from being broken due to fatigue damage |
-
2016
- 2016-04-28 CN CN201620370462.7U patent/CN205578191U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109899371A (en) * | 2019-02-26 | 2019-06-18 | 中铁工程装备集团隧道设备制造有限公司 | A kind of connection bolt protecting device and flange connection |
| CN109899371B (en) * | 2019-02-26 | 2024-03-22 | 中铁工程装备集团隧道设备制造有限公司 | Connecting bolt protection device and flange connection structure |
| CN111720268A (en) * | 2019-03-20 | 2020-09-29 | 北京金风科创风电设备有限公司 | Tower section of thick bamboo, pylon and wind generating set |
| CN111720268B (en) * | 2019-03-20 | 2023-03-24 | 北京金风科创风电设备有限公司 | Tower section of thick bamboo, pylon and wind generating set |
| US11814856B2 (en) | 2019-03-20 | 2023-11-14 | Beijing Goldwind Science & Creation Windpower Equipment Co., Ltd. | Tower tube section, tower frame and wind power generator set |
| CN114517804A (en) * | 2022-02-14 | 2022-05-20 | 陈国强 | Device capable of effectively preventing bolt from being broken due to fatigue damage |
| CN114517804B (en) * | 2022-02-14 | 2024-01-26 | 陈国强 | Device capable of effectively preventing bolt from being broken due to fatigue damage |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160914 Termination date: 20190428 |