CN201786864U - Stud bolt for wind power vanes - Google Patents
Stud bolt for wind power vanes Download PDFInfo
- Publication number
- CN201786864U CN201786864U CN2010202082357U CN201020208235U CN201786864U CN 201786864 U CN201786864 U CN 201786864U CN 2010202082357 U CN2010202082357 U CN 2010202082357U CN 201020208235 U CN201020208235 U CN 201020208235U CN 201786864 U CN201786864 U CN 201786864U
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- Prior art keywords
- assembling end
- stud bolt
- stud
- assembling
- utility
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Abstract
The utility model discloses a stud bolt for wind power vanes, which is formed by a high-quality alloy steel bar via mechanical processing, thermal treatment and surface coating. The middle of the stud bolt does not have threads, two ends of the stud bolt are respectively provided with threads to be a first assembling end and a second assembling end, and the first assembling end and the second assembling end are respectively located at two ends of the stud bolt and form the stud bolt together with a middle non-thread rod. A chip flute is arranged on the outer surface of the periphery of the first assembling end, and can be used for scraping, holding and discharging burrs, chips and surface coating accumulated liquid of crossed round nuts, impeller hub screw hole walls and fixing and locking nuts which match with the first assembling end. Accordingly, the wind power stud bolt can guarantee that the burrs, the surface coating accumulated liquid and inner thread chips can not affect the stud bolt, and reliability of products is increased by the aid of matching among the crossed round nuts and the fixing and locking nuts.
Description
Technical field
The utility model relates to a kind of wind-powered electricity generation fastening piece, in particular, relates to wind-powered electricity generation fan blade stud.
Background technique
The fan blade stud can be used for connecting fan blade and the wheel hub on the wind power equipment, because the power that stud need carry is bigger, so also very high to its quality requirement.
The existing stud that is used for connecting fan blade and wheel hub comprises double-screw bolt polished rod and two assembling ends with screw thread that are separately positioned on the polished rod two ends.Generally, the staff can be respectively be screwed into two assembling ends of this stud in the double nut of the crossed-circle nut of fan blade and wheel hub, makes stud reach the fixedly effect of fan blade and wheel hub.
But the crossed-circle nut that is installed in the fan blade root adopts the blind hole design sometimes, and easy residual burr, stolen goods are considered to be worth doing and dacro solution in the nut blind hole when carrying out the Dacroment coating, and influence is with the cooperation of stud.Same nut is as internal thread product also easy residual foreign material and hydrops in the process that Dacroment applies, thereby influence is with the assembling of stud.
So inventor of the present utility model finds: fixedly tightening in the process that nut cooperates with crossed-circle nut and hexagonal, how to make and a kind ofly can hold and discharge hydrops or foreign material, improve the stud of product reliability, become the problem that needs most solution at present.
The model utility content
Given this, the utility model provides a kind of fan blade stud that can remove hydrops or assorted bits.
The utility model is embodiment be achieved in that
Wind-powered electricity generation fan blade stud comprises the double-screw bolt polished rod, is provided with the first assembling end and the second assembling end of screw thread;
The described first assembling end and the second assembling end are separately positioned on the two ends of described double-screw bolt polished rod;
The outer surface of the described first assembling end circumference is provided with groove.
Preferably, use in the fan blade stud at above-mentioned wind-powered electricity generation, the described second assembling end is provided with inner hexagonal hole.
Preferably, above-mentioned wind-powered electricity generation with the fan blade stud in, the diameter that the described first assembling end and second assembling are held is all greater than the diameter of described polished rod.
Preferably, use in the fan blade stud at above-mentioned wind-powered electricity generation, described first assembling end and the top screw thread of the second assembling end are effective thread.
Compared with prior art, the technological scheme that provides of the utility model embodiment has the following advantages and characteristics:
The wind-powered electricity generation that the utility model provides by on the outer surface of the first assembling end circumference groove being set, is avoided assorted bits and hydrops influence assembling with the fan blade stud.When detritus and hydrops were arranged in the nut, in assembly process, the groove of stud can be received into assorted bits in the groove, hydrops was scraped off from internal thread be received in the groove; After stud and crossed-circle nut were seated, assorted bits and hydrops can permanently be retained in groove groove and the round nut tool withdrawal groove; When stud and fixing and locking were seated with hexagon nut, assorted bits and hydrops can be discharged from the nut through hole.Therefore, the utility model can guarantee all can not hinder the installation of stud no matter be hydrops or foreign material, does not hinder stud and crossed-circle nut and the normal cooperation that plays the hexagon nut of fixing and locking effect, has improved product reliability.
Description of drawings
In order to be illustrated more clearly in the utility model or technological scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiments more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the front view of fan blade stud provided by the utility model;
Fig. 2 is that the A of Fig. 1 is to figure;
Fig. 3 is that the B of Fig. 1 is to figure.
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technological scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiments.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment who is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
The utility model embodiment provides a kind of wind electricity blade to connect and use stud, and the first assembling end and second assembling that comprise the polished rod part, are provided with screw thread are held; The described first assembling end and the second assembling end are separately positioned on the two ends of described stud polished rod; The outer surface of the described first assembling end circumference is provided with groove.Above-mentioned wind-powered electricity generation can avoid hydrops or foreign material to hinder normally being linked and packed of wind wheel blade and wheel hub with the fan blade stud.Because there is multiple mode in above-mentioned wind-powered electricity generation with the specific implementation of stud, is elaborated below by specific embodiment:
See also shown in Fig. 1 to 3, a kind of wind-powered electricity generation fan blade stud comprises double-screw bolt polished rod 3, is provided with the first assembling end, the 1 and second assembling end 2 of screw thread; The described first assembling end, the 1 and second assembling end 2 is separately positioned on the two ends of described double-screw bolt polished rod 3; The outer surface of the described first assembling end, 1 circumference is provided with groove 11.The embodiment that the utility model provides avoids foreign material and hydrops to hinder the assembling with hexagon nut of stud bolt and crossed-circle nut and fixing and locking by on the outer surface of the first assembling end, 1 circumference groove 11 being set.When there are hydrops or assorted bits or burr in the engagement place between nut and the stud, groove 11 will be scraped hydrops, burr or foreign material and chip away and be kept in the groove 11; After stud is in place, scraped the hydrops, burr and the assorted bits that chip away will partly or entirely be discharged to outside the nut through hole or the tool withdrawal groove of blind hole bottom in.Therefore, the embodiment that the utility model provides can guarantee can not hinder the normal assembling between nut and the stud no matter be hydrops or assorted bits or burr.But the utility model does not limit the concrete shape of groove 11, as long as the shape that assurance hydrops, assorted bits and burr can be scraped and discharge is all in protection domain of the present utility model.
The staff is when being screwed into nut with existing stud, usually directly go to twist with hand, because there is not to use the space of spanner above the existing stud, so utilize existing stud to be unfavorable for that the staff carries out corresponding assembling work, and rely on the strength of hand may cause and stud can't be tightened fully.For this reason, the embodiment that the utility model provides is provided with inner hexagonal hole 21 on the described second assembling end 2, and the staff can adopt inner hexagon spanner to carry out assembling work when assembling.
Because the fan blade stud is applied between the wind wheel blade and wind wheel wheel hub of wind power equipment, so need the very big alternate load of carrying, its structure fabrication whether reasonable directly influences the stressing conditions of stud.For this reason, the stud that the utility model provides is in working process, and the diameter that guarantees the described first assembling end, the 1 and second assembling end 2 is all greater than the diameter of described stud polished rod 3, strengthening the toughness of stud, thus the fatigue life of improving product.And the screw thread above the described first assembling end, the 1 and second assembling end 2 is an effective thread, can avoid like this in assembly process, and the staff controls the length that stud is screwed into nut more accurate.
In making the process of stud, earlier the blank material is carried out quenching with Subsequent tempering, then car molding semi product once on numerically controlled lathe, screw thread is roll forming on thread rolling machine, and the screw thread that will finish up makes at the bottom of the circular arc tooth, eliminates Bottom of Thread stress, can improve the fatigue strength of screw thread.The product size precision height, high conformity, the steady quality that process like this.
Need to prove that Fig. 1 is the preferred embodiment that the utility model is introduced to embodiment shown in Figure 3, those skilled in the art can design more embodiment on this basis fully, therefore do not give unnecessary details herein.
To the above-mentioned explanation of the disclosed embodiments, make related domain professional and technical personnel can realize or use the utility model.Multiple modification to these embodiments will be conspicuous concerning those skilled in the art, and defined herein General Principle can realize under the situation that does not break away from spirit or scope of the present utility model in other embodiments.Therefore, the utility model will can not be restricted to these embodiments shown in this article, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (4)
1. wind-powered electricity generation fan blade stud is characterized in that, comprises the double-screw bolt polished rod, is provided with the first assembling end and the second assembling end of screw thread;
The described first assembling end and the second assembling end are separately positioned on the two ends of described double-screw bolt polished rod;
The outer surface of the described first assembling end circumference is provided with groove.
2. wind-powered electricity generation fan blade stud according to claim 1 is characterized in that, the described second assembling end is provided with inner hexagonal hole.
3. wind-powered electricity generation fan blade stud according to claim 1 is characterized in that, the diameter that the described first assembling end and second assembling are held is all greater than the diameter of described double-screw bolt polished rod.
4. wind-powered electricity generation fan blade stud according to claim 1 is characterized in that, described first assembling end and the screw thread above the second assembling end are effective thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202082357U CN201786864U (en) | 2010-05-31 | 2010-05-31 | Stud bolt for wind power vanes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202082357U CN201786864U (en) | 2010-05-31 | 2010-05-31 | Stud bolt for wind power vanes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201786864U true CN201786864U (en) | 2011-04-06 |
Family
ID=43818828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202082357U Expired - Fee Related CN201786864U (en) | 2010-05-31 | 2010-05-31 | Stud bolt for wind power vanes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201786864U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103671429A (en) * | 2013-11-21 | 2014-03-26 | 南通高盛机械制造有限公司 | Stud |
| CN106224348A (en) * | 2016-08-25 | 2016-12-14 | 安徽六方重联机械股份有限公司 | Stud securing member |
| CN106246684A (en) * | 2016-08-25 | 2016-12-21 | 安徽六方重联机械股份有限公司 | Axis location type stud |
| CN108655768A (en) * | 2018-06-19 | 2018-10-16 | 太仓瑞鼎精密机械科技有限公司 | A kind of high-precision, the system that is located by connecting of high rigidity |
-
2010
- 2010-05-31 CN CN2010202082357U patent/CN201786864U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103671429A (en) * | 2013-11-21 | 2014-03-26 | 南通高盛机械制造有限公司 | Stud |
| CN106224348A (en) * | 2016-08-25 | 2016-12-14 | 安徽六方重联机械股份有限公司 | Stud securing member |
| CN106246684A (en) * | 2016-08-25 | 2016-12-21 | 安徽六方重联机械股份有限公司 | Axis location type stud |
| CN108655768A (en) * | 2018-06-19 | 2018-10-16 | 太仓瑞鼎精密机械科技有限公司 | A kind of high-precision, the system that is located by connecting of high rigidity |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHANGHAI AUTOCRAFT CO., LTD. Free format text: FORMER NAME: AUTOCRAFT INDUSTRIAL(SHANGHAI)LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 201300 No. 168, South Reed Road, Nanhui Industrial Park, Shanghai Patentee after: SHANGHAI AUTOCRAFT CO., LTD. Address before: 201300 No. 168, South Reed Road, Nanhui Industrial Park, Shanghai Patentee before: Autocraft Industrial ( Shanghai ) Ltd. |
|
| 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: 20110406 Termination date: 20180531 |