CN108757298B - Pre-buried bolt structure of wind-powered electricity generation blade root - Google Patents
Pre-buried bolt structure of wind-powered electricity generation blade root Download PDFInfo
- Publication number
- CN108757298B CN108757298B CN201810446538.3A CN201810446538A CN108757298B CN 108757298 B CN108757298 B CN 108757298B CN 201810446538 A CN201810446538 A CN 201810446538A CN 108757298 B CN108757298 B CN 108757298B
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- Prior art keywords
- blade root
- embedded
- ring body
- clamping
- embedded bolt
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- 230000005611 electricity Effects 0.000 title description 3
- 238000004806 packaging method and process Methods 0.000 claims abstract description 33
- 210000001503 joint Anatomy 0.000 claims description 6
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 238000005538 encapsulation Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 4
- 238000009434 installation Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 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
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor
- F03D1/06—Rotors
- F03D1/065—Rotors characterised by their construction elements
- F03D1/0658—Arrangements for fixing wind-engaging parts to a hub
-
- 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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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Wind Motors (AREA)
Abstract
The invention discloses a pre-buried bolt structure of a blade root of a wind power blade, which comprises a blade root, a packaging ring body, a pre-buried bolt, a locking screw and an elastic connector. The embedded bolt mounting structure is ingenious in design, the embedded bolts are mounted in the embedded bolt clamping grooves formed by the blade roots and the packaging ring bodies, the embedded bolts are clamped in the embedded bolt clamping grooves in a sliding mode through the clamping teeth, and the elastic connecting bodies are mounted between the clamping teeth at the bottoms of the embedded bolts, so that the embedded bolts are mounted more stably, proper numbers of the embedded bolts can be selected according to actual requirements, and reasonable mounting positions can be adjusted by sliding the embedded bolts in the mounting process, so that the embedded bolt mounting structure is more flexible to use.
Description
Technical Field
The invention relates to a pre-buried bolt structure of a blade root of a wind power blade.
Background
The wind power generation blade needs to be connected to the host machine through a blade root bolt, and the connection method mainly comprises two technologies of T-shaped bolts and embedded bolts. In the early stage of the wind power industry, the blade power is smaller, the blade root load is small, the T-shaped bolt mode is adopted, the process is simple, and the quality is easy to control. Along with the development of the times, the length and the power of the blade are gradually increased, and the defects of the connecting mode are also shown, such as the limited number of the blade root bolts caused by the larger distance between the blade root bolts, the lower bearing load of the blade root, the more solid waste generated by cutting and punching the blade root, and the like. And the embedded bolt connection mode can distribute more axial bolts under the same pitch circle diameter, so that the embedded bolt connection mode can bear larger load. The elimination of the post-treatment drilling step reduces the generation of waste materials. However, the existing embedded bolts are generally poured and fixed in the blade root, the number of the embedded bolts and the installation position cannot be adjusted after forming, so that the matched connecting hub is produced, sometimes the screw holes in the connecting hub are slightly deviated and scrapped, and if the embedded bolts on the blade root can be adjusted according to the actual conditions, the installation and production are more flexible.
Disclosure of Invention
Aiming at the defects of the prior art, the invention solves the problems that: the utility model provides a but pre-buried bolt structure of wind-powered electricity generation blade root of pre-buried bolt nimble adjustment position.
In order to solve the problems, the invention adopts the following technical scheme:
a pre-buried bolt structure of a blade root of a wind power blade comprises a blade root, a packaging ring body, pre-buried bolts, locking screws and an elastic connector; the blade root is in a ring structure; the packaging ring body is sleeved and fixed on the outer side of the blade root; a pre-buried bolt clamping groove is formed between the blade root and the packaging ring body; the embedded bolts are provided with a plurality of bolts; the bottom of the embedded bolt is provided with clamping teeth; the embedded bolts are slidably clamped in the embedded bolt clamping grooves through clamping teeth; the elastic connector is arranged in the embedded bolt clamping groove; the elastic connectors are distributed among the clamping teeth at the bottom of the embedded bolt; the elastic connector is elastically compressed and installed between the clamping teeth.
Further, the blade root is in a circular ring structure; the outer side of the upper part of the blade root is provided with an inner arc-shaped clamping ring groove; the packaging ring body is of a circular ring body structure; the inner side of the upper part of the packaging ring body is provided with an outer arc-shaped clamping ring groove; the packaging ring body is sleeved on the outer side of the blade root; the inner arc clamping ring groove and the outer arc clamping ring groove are corresponding in position and form an embedded bolt clamping groove.
Further, a plurality of locking threaded holes are formed in the outer side of the lower portion of the blade root; the lower part of the packaging ring body is provided with a plurality of locking through holes; the locking through hole corresponds to the locking threaded hole in position; the locking screw passes through the locking through hole from the outer side of the packaging ring body and is in threaded connection with the locking threaded hole.
Further, the packaging ring body and the locking screw are made of titanium alloy materials.
Further, the embedded bolt clamping groove and the clamping teeth are of an inverted T-shaped structure.
Further, the packaging ring body is formed by butt joint of two semicircular butt joint plates.
The beneficial effects of the invention are that
The embedded bolt mounting structure is ingenious in design, the embedded bolts are mounted in the embedded bolt clamping grooves formed by the blade roots and the packaging ring bodies, the embedded bolts are clamped in the embedded bolt clamping grooves in a sliding mode through the clamping teeth, and the elastic connecting bodies are mounted between the clamping teeth at the bottoms of the embedded bolts, so that the embedded bolts are mounted more stably, proper numbers of the embedded bolts can be selected according to actual requirements, and reasonable mounting positions can be adjusted by sliding the embedded bolts in the mounting process, so that the embedded bolt mounting structure is more flexible to use.
Drawings
Fig. 1 is a schematic cross-sectional view of the present invention.
FIG. 2 is a schematic view of a cross-sectional connection between a blade root and a containment ring of the present invention.
FIG. 3 is a schematic view showing the detachment of the blade root, the package ring, the embedded bolts and the locking screws of the present invention.
Fig. 4 is a schematic top cross-sectional view of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 to 4, an embedded bolt structure of a blade root of a wind power blade comprises a blade root 1, a packaging ring body 4, an embedded bolt 2, a locking screw 5 and an elastic connector 7. The blade root 1 is in a ring structure. The packaging ring body 4 is sleeved and fixed on the outer side of the blade root 1; and an embedded bolt clamping groove 6 is arranged between the blade root 1 and the packaging ring body 4. The embedded bolts 2 are arranged in a plurality; the bottom of the embedded bolt 2 is provided with clamping teeth 3; the embedded bolts 2 are slidably clamped in the embedded bolt clamping grooves 6 through the clamping teeth 3. The elastic connector 7 is arranged in the embedded bolt clamping groove 6; the elastic connector 7 is distributed among the clamping teeth 3 at the bottom of the embedded bolt 2; the elastic connector 7 is elastically compressed and installed between the clamping teeth 3. Further preferably, the blade root 1 has a circular ring structure; the outer side of the upper part of the blade root 1 is provided with an inner arc-shaped clamping ring groove 11; the packaging ring body 4 is in a circular ring body structure; the inner side of the upper part of the packaging ring body 4 is provided with an outer arc-shaped clamping ring groove 41; the packaging ring body 4 is sleeved on the outer side of the blade root 1; the inner arc-shaped clamping ring groove 11 and the outer arc-shaped clamping ring groove 41 are corresponding in position and form an embedded bolt clamping groove 6. Further preferably, a plurality of locking threaded holes 12 are arranged on the outer side of the lower part of the blade root 1; the lower part of the packaging ring body 4 is provided with a plurality of locking through holes 42; the locking through hole 42 corresponds to the locking threaded hole 12 in position; the locking screw 5 passes through the locking through hole 42 from the outer side of the packaging ring body 4 and is connected in the locking threaded hole 12 in a threaded manner. Further preferably, the packaging ring body 4 and the locking screw 5 are made of titanium alloy materials. Further preferably, the embedded bolt clamping groove 6 and the clamping teeth 3 are of inverted T-shaped structures. Further preferably, the packaging ring body 4 is formed by butt joint of two semicircular butt joint plates.
The embedded bolt 2 is ingenious in design, the embedded bolts 2 are arranged in the embedded bolt clamping grooves 6 formed by the blade roots 1 and the packaging ring bodies 4, the embedded bolts 2 are slidably clamped in the embedded bolt clamping grooves 6 through the clamping teeth 3, and the elastic connecting bodies 7 are arranged between the clamping teeth 3 at the bottoms of the embedded bolts 2, so that the embedded bolts 2 are more stably arranged, proper numbers of the embedded bolts 2 can be selected according to actual requirements, reasonable installation positions can be adjusted by sliding the embedded bolts 2 in the installation process, and the embedded bolt is more flexible to use.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (4)
1. The embedded bolt structure of the wind power blade root is characterized by comprising a blade root, an encapsulation ring body, embedded bolts, locking screws and an elastic connector; the blade root is in a ring structure; the packaging ring body is sleeved and fixed on the outer side of the blade root; a pre-buried bolt clamping groove is formed between the blade root and the packaging ring body; the embedded bolts are provided with a plurality of bolts; the bottom of the embedded bolt is provided with clamping teeth; the embedded bolts are slidably clamped in the embedded bolt clamping grooves through clamping teeth; the elastic connector is arranged in the embedded bolt clamping groove; the elastic connectors are distributed among the clamping teeth at the bottom of the embedded bolt; the elastic connector is elastically compressed and installed between the clamping teeth; the blade root is in a circular ring structure; the outer side of the upper part of the blade root is provided with an inner arc-shaped clamping ring groove; the packaging ring body is of a circular ring body structure; the inner side of the upper part of the packaging ring body is provided with an outer arc-shaped clamping ring groove; the packaging ring body is sleeved on the outer side of the blade root; the inner arc clamping ring groove and the outer arc clamping ring groove are corresponding in position and form an embedded bolt clamping groove; the outer side of the lower part of the blade root is provided with a plurality of locking threaded holes; the lower part of the packaging ring body is provided with a plurality of locking through holes; the locking through hole corresponds to the locking threaded hole in position; the locking screw passes through the locking through hole from the outer side of the packaging ring body and is in threaded connection with the locking threaded hole.
2. The embedded bolt structure of a blade root of a wind power blade according to claim 1, wherein the packaging ring body and the locking screw are made of titanium alloy materials.
3. The embedded bolt structure of a wind power blade root of claim 1, wherein the embedded bolt clamping grooves and the clamping teeth are of inverted T-shaped structures.
4. The embedded bolt structure of a wind power blade root of claim 1, wherein the packaging ring body is formed by butt joint of two semicircular butt joint plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810446538.3A CN108757298B (en) | 2018-05-11 | 2018-05-11 | Pre-buried bolt structure of wind-powered electricity generation blade root |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810446538.3A CN108757298B (en) | 2018-05-11 | 2018-05-11 | Pre-buried bolt structure of wind-powered electricity generation blade root |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108757298A CN108757298A (en) | 2018-11-06 |
| CN108757298B true CN108757298B (en) | 2023-05-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810446538.3A Active CN108757298B (en) | 2018-05-11 | 2018-05-11 | Pre-buried bolt structure of wind-powered electricity generation blade root |
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| Country | Link |
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| CN (1) | CN108757298B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109613037A (en) * | 2018-11-21 | 2019-04-12 | 东台市高科技术创业园有限公司 | A kind of metal wears down formula detection device |
| US11478730B2 (en) | 2019-12-12 | 2022-10-25 | M.W. Watermark, L.L.C. | Filter press assembly |
| CN115570725B (en) * | 2022-10-08 | 2023-10-20 | 上海玻璃钢研究院东台有限公司 | Wind power generation blade pouring and forming integrated device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014041182A2 (en) * | 2012-09-17 | 2014-03-20 | Areva Wind Gmbh | Guiding system for guiding a root of a rotor blade during installation and method of mounting a rotor blade on a rotor hub of a wind generator |
| CN103821535A (en) * | 2014-03-06 | 2014-05-28 | 中铁第一勘察设计院集团有限公司 | Shield method tunnel lining structure pre-buried groove connecting element and installing method thereof |
| CN105297913A (en) * | 2015-11-15 | 2016-02-03 | 江苏安荣电气设备有限公司 | Embedded sliding channel bearing assembly |
| CN105673318A (en) * | 2016-03-24 | 2016-06-15 | 北京稳力科技有限公司 | Novel wheel hub connection mechanism of wind driven generator |
| EP3040551A1 (en) * | 2015-01-05 | 2016-07-06 | Siemens Aktiengesellschaft | Coupling arrangement in the field of wind turbines |
| CN105773130A (en) * | 2016-03-28 | 2016-07-20 | 吉林重通成飞新材料股份公司 | Embedding tool for bolt of blade root |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2457830B1 (en) * | 2010-11-25 | 2014-11-12 | AIRBUS HELICOPTERS DEUTSCHLAND GmbH | Blade to rotor hub joint |
-
2018
- 2018-05-11 CN CN201810446538.3A patent/CN108757298B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014041182A2 (en) * | 2012-09-17 | 2014-03-20 | Areva Wind Gmbh | Guiding system for guiding a root of a rotor blade during installation and method of mounting a rotor blade on a rotor hub of a wind generator |
| CN103821535A (en) * | 2014-03-06 | 2014-05-28 | 中铁第一勘察设计院集团有限公司 | Shield method tunnel lining structure pre-buried groove connecting element and installing method thereof |
| EP3040551A1 (en) * | 2015-01-05 | 2016-07-06 | Siemens Aktiengesellschaft | Coupling arrangement in the field of wind turbines |
| CN105297913A (en) * | 2015-11-15 | 2016-02-03 | 江苏安荣电气设备有限公司 | Embedded sliding channel bearing assembly |
| CN105673318A (en) * | 2016-03-24 | 2016-06-15 | 北京稳力科技有限公司 | Novel wheel hub connection mechanism of wind driven generator |
| CN105773130A (en) * | 2016-03-28 | 2016-07-20 | 吉林重通成飞新材料股份公司 | Embedding tool for bolt of blade root |
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| Publication number | Publication date |
|---|---|
| CN108757298A (en) | 2018-11-06 |
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