CN102506049A - Fastening device used on large-sized wind driven generator - Google Patents
Fastening device used on large-sized wind driven generator Download PDFInfo
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- CN102506049A CN102506049A CN2011102852854A CN201110285285A CN102506049A CN 102506049 A CN102506049 A CN 102506049A CN 2011102852854 A CN2011102852854 A CN 2011102852854A CN 201110285285 A CN201110285285 A CN 201110285285A CN 102506049 A CN102506049 A CN 102506049A
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- slope
- bolt
- nut
- driven generator
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Abstract
The invention discloses a fastening device used on a large-sized wind driven generator, which comprises a bolt and a nut. The bolt comprises a threaded rod and a screw head, the nut is provided with a screw hole, a first flange surface is arranged on the lower end surface of the screw head of the bolt, a plurality of first toothed surface grooves are arranged on the first flange surface, a first bearing plane is arranged between each two adjacent first toothed surface grooves, and a first screwing slope and a first withdrawing slope are disposed on two sides of each first toothed surface groove; and one end of the nut is provided with a second flange surface matching with the first flange surface, a plurality of second toothed surface grooves are arranged on the second flange surface, a second bearing plane is disposed between each two adjacent second toothed surface grooves, and a second screwing slope and a second withdrawing slope are disposed on two sides of each second toothed surface groove. The fastening device is always stable and reliable in locking force and simple in structure, and effectively prevents the bolt from loosening, and scheduled maintenance is omitted.
Description
[technical field]
The present invention relates to a kind of securing means that is used on the large-scale wind driven generator.
[background technique]
A large amount of high tenacity securing meanss have been installed on the large-scale wind driven generator, screw bolt and nut just, because wind-driven generator can not stop to rock in wind, this makes bolt of installing have loosening risk.The connection guarantee of high-strength bolt flanged surface is to rely on the frictional force of flanged surface to ensure; When becoming flexible appears in bolt, the pressure of adpting flange face is diminished, the frictional force of joint also reduces; Connection reliability decreases, and possibly bring adverse consequences by fan thus.For fear of this risk, traditional method is at a distance from some months the bolt of blower fan to be reexamined pretension once.Yet because the height that wind-driven generator is positioned at apart from ground more than tens meters is aerial, it is very high to examine maintenance cost surely, and the risk of personal safety is also arranged.If adopt the flanged surface bolt of the normal tape flank of tooth on the blower fan,, there is not the Flange Plane of corresponding steady pressure again because the groove design is unreasonable; Along with blower fan running vibration all the year round; The bolt groove is pressed in the flanged surface of workpiece, had both damaged workpiece, can reduce its pretightening force again; Reliability is reduced, have to make regular check on.
[summary of the invention]
The objective of the invention is to overcome the deficiency of existing technology, provide a kind of bolted coupling mechanism force all-the-time stable that is used on the large-scale wind driven generator reliable, effectively prevent bolt looseness, realize exempting to decide inspection, securing means simple in structure.
The objective of the invention is to realize like this:
A kind of securing means that is used on the large-scale wind driven generator; Comprise screw bolt and nut, described bolt comprises threaded stem and spiral shell head, and described nut is provided with screw; The spiral shell head lower end surface that it is characterized in that described bolt is provided with first flanged surface; Have a plurality of first flank of tooth grooves on first flanged surface, be provided with first load plane between two the first adjacent flank of tooth grooves, the both sides of first flank of tooth groove are provided with first and tighten slope and first and withdraw from the slope; One end of described nut is provided with second flanged surface that cooperates with first flanged surface; Have a plurality of second flank of tooth grooves on second flanged surface; Be provided with second load plane between two the second adjacent flank of tooth grooves, the both sides of second flank of tooth groove are provided with second and tighten slope and second and withdraw from the slope.
Aforesaid a kind of securing means that is used on the large-scale wind driven generator is characterized in that first tightens the angle of the axis of slope and bolt
1Greater than first withdraw from the axis of slope and bolt 1 angle β
1
Aforesaid a kind of securing means that is used on the large-scale wind driven generator is characterized in that second tightens the angle of the axis of slope and nut
2Greater than second withdraw from the axis of slope and nut angle β
2
Aforesaid a kind of securing means that is used on the large-scale wind driven generator, it is characterized in that tightening slope and first by first of first flank of tooth groove, to withdraw from the slope be the homonymy setting.
Aforesaid a kind of securing means that is used on the large-scale wind driven generator, it is characterized in that tightening slope and second by second of second flank of tooth groove, to withdraw from the slope be the homonymy setting.
Aforesaid a kind of securing means that is used on the large-scale wind driven generator is characterized in that the axis of first load plane and bolt is perpendicular.
Aforesaid a kind of securing means that is used on the large-scale wind driven generator is characterized in that the axis of second load plane and nut is perpendicular.
Flanged surface, the flank of tooth groove of the screw bolt and nut that the present invention matches through design, tighten the slope and withdraw from slope, load plane, can effectively be implemented under the identical coupling mechanism force, withdraw from the high proper proportion of torque ratio screw-down torque; The phenomenon of avoiding simultaneously not only the mounting flange face to reduce in the situation but also the coupling mechanism force of long-term vibration; Also the situation that bolt withdraws from can not take place, the coupling mechanism force all-the-time stable is reliable, effectively prevents bolt looseness; Realization exempts to decide inspection, and is simple in structure.
[description of drawings]
Fig. 1 is the stereogram of bolt of the present invention;
Fig. 2 is the stereogram of nut of the present invention.
[embodiment]
A kind of securing means that is used on the large-scale wind driven generator; Comprise screw bolt and nut; Described bolt 1 comprises threaded stem 11 and spiral shell head 12, and described nut 2 is provided with the screw 20 that matches with threaded stem 11, and the threaded stem 11 of bolt 1 is connected in the screw 20 of nut 2; Spiral shell head 12 lower end surfaces of described bolt 1 are provided with first flanged surface 121; Have a plurality of first flank of tooth grooves 122 on first flanged surface 121, have the both sides of first load plane, 123, the first flank of tooth grooves 122 to be provided with first between two the first adjacent flank of tooth grooves 122 and tighten slope 1221 and first and withdraw from slope 1222; One end of described nut 2 is provided with second flanged surface 21 that cooperates with first flanged surface 121; Have a plurality of second flank of tooth grooves 22 on second flanged surface 21; Having the both sides of second load plane, 23, the second flank of tooth grooves 22 to be provided with second between two the second adjacent flank of tooth grooves 22 tightens slope 221 and second and withdraws from slope 222.
First of first flank of tooth groove 122 is tightened slope 1221 and first and is withdrawed from slope 1222 and be the homonymy setting.
Second of second flank of tooth groove 22 is tightened slope 221 and second and is withdrawed from slope 222 and be the homonymy setting.
First tightens the angle of the axis 13 of slope 1221 and bolt 1
1Greater than first withdraw from slope 1222 and the axis 13 of bolt 1 angle β
1
Second tightens the angle of the axis 23 of slope 221 and nut 2
2Greater than second withdraw from slope 222 and the axis 23 of nut 2 angle β
2
The present invention when mounted, load plane is pressed on the plane of workpiece, guarantees that flanged surface passes through face contact and connects, and effectively protects the workpiece flanged surface, avoids the flanged surface damage, and keeps the stable of attachment face pressure.When bolt (nut) when tightening, flanged surface can slide towards tightening the slope, and the surface friction drag of slip is less; When bolt (nut) when withdrawing from, flanged surface can slide towards withdrawing from the aspect, inclined-plane, and sliding-frictional resistance is bigger; The present invention is through suitable bolt (nut) the flanged surface diameter of design, flank of tooth groove quantity, slope, peaceful area; Can effectively be implemented under the identical coupling mechanism force; Withdraw from the high proper proportion of torque ratio screw-down torque; Avoid simultaneously not only the mounting flange face in the phenomenon that the situation but also the coupling mechanism force of long-term vibration reduces, also the situation that bolt withdraws from can not take place.
Claims (7)
1. securing means that is used on the large-scale wind driven generator; Comprise bolt (1) and nut (2); Described bolt (1) comprises threaded stem (11) and spiral shell head (12); Described nut (2) is provided with screw (20), it is characterized in that spiral shell head (12) lower end surface of described bolt (1) is provided with first flanged surface (121), has a plurality of first flank of tooth grooves (122) on first flanged surface (121); Be provided with first load plane (123) between adjacent two first flank of tooth grooves (122), the both sides of first flank of tooth groove (122) are provided with first and tighten slope (1221) and first and withdraw from slope (1222); One end of described nut (2) is provided with second flanged surface (21) that cooperates with first flanged surface (121); Have a plurality of second flank of tooth grooves (22) on second flanged surface (21); Be provided with second load plane (23) between adjacent two second flank of tooth grooves (22), the both sides of second flank of tooth groove (22) are provided with second and tighten slope (221) and second and withdraw from slope (222).
2. a kind of securing means that is used on the large-scale wind driven generator according to claim 1 is characterized in that first tightens the angle (α of the axis (13) of slope (1221) and bolt (1)
1) greater than first withdraw from the axis (13) of slope (1222) and bolt (1) angle (β
1).
3. a kind of securing means that is used on the large-scale wind driven generator according to claim 1 is characterized in that second tightens the angle (α of the axis (23) of slope (221) and nut (2)
2) greater than second withdraw from the axis (23) of slope (222) and nut (2) angle (β
2).
4. a kind of securing means that is used on the large-scale wind driven generator according to claim 1 is characterized in that first of first flank of tooth groove (122) tightens slope (1221) and first and withdraw from slope (1222) for the homonymy setting.
5. a kind of securing means that is used on the large-scale wind driven generator according to claim 1 is characterized in that second of second flank of tooth groove (22) tightens slope (221) and second and withdraw from slope (222) for the homonymy setting.
6. a kind of securing means that is used on the large-scale wind driven generator according to claim 1 is characterized in that first load plane (123) is perpendicular with the axis of bolt (1).
7. a kind of securing means that is used on the large-scale wind driven generator according to claim 1 is characterized in that second load plane (23) is perpendicular with the axis of nut (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102852854A CN102506049A (en) | 2011-09-23 | 2011-09-23 | Fastening device used on large-sized wind driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102852854A CN102506049A (en) | 2011-09-23 | 2011-09-23 | Fastening device used on large-sized wind driven generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102506049A true CN102506049A (en) | 2012-06-20 |
Family
ID=46218171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102852854A Pending CN102506049A (en) | 2011-09-23 | 2011-09-23 | Fastening device used on large-sized wind driven generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102506049A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104614775A (en) * | 2015-02-25 | 2015-05-13 | 云南酷联科技有限公司 | Bolt looseness on-line monitoring device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3343580A (en) * | 1965-05-14 | 1967-09-26 | Eaton Yale & Towne | Self-locking fastener device |
| JPS52101352A (en) * | 1975-12-18 | 1977-08-25 | Bauer & Schaurte | Selfflocking clamping tool |
| EP0187244A1 (en) * | 1984-12-10 | 1986-07-16 | SPS TECHNOLOGIES, Inc. | Vibration resistant fastener for soft joint surfaces |
| CN201428711Y (en) * | 2009-06-11 | 2010-03-24 | 蔡体勇 | Inner and outer hexagonal half-thread lock screw with toothed flange surface |
| CN202266562U (en) * | 2011-09-23 | 2012-06-06 | 广东明阳风电产业集团有限公司 | Bolt and nut which are used on large wind driven generator |
-
2011
- 2011-09-23 CN CN2011102852854A patent/CN102506049A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3343580A (en) * | 1965-05-14 | 1967-09-26 | Eaton Yale & Towne | Self-locking fastener device |
| JPS52101352A (en) * | 1975-12-18 | 1977-08-25 | Bauer & Schaurte | Selfflocking clamping tool |
| EP0187244A1 (en) * | 1984-12-10 | 1986-07-16 | SPS TECHNOLOGIES, Inc. | Vibration resistant fastener for soft joint surfaces |
| CN201428711Y (en) * | 2009-06-11 | 2010-03-24 | 蔡体勇 | Inner and outer hexagonal half-thread lock screw with toothed flange surface |
| CN202266562U (en) * | 2011-09-23 | 2012-06-06 | 广东明阳风电产业集团有限公司 | Bolt and nut which are used on large wind driven generator |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104614775A (en) * | 2015-02-25 | 2015-05-13 | 云南酷联科技有限公司 | Bolt looseness on-line monitoring device |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120620 |