CN202266562U - Bolt and nut which are used on large wind driven generator - Google Patents
Bolt and nut which are used on large wind driven generator Download PDFInfo
- Publication number
- CN202266562U CN202266562U CN 201120359195 CN201120359195U CN202266562U CN 202266562 U CN202266562 U CN 202266562U CN 201120359195 CN201120359195 CN 201120359195 CN 201120359195 U CN201120359195 U CN 201120359195U CN 202266562 U CN202266562 U CN 202266562U
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- CN
- China
- Prior art keywords
- slope
- nut
- bolt
- flank
- driven generator
- 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 - Lifetime
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Abstract
The utility model discloses a bolt and a nut which are used on a large wind driven generator. The bolt comprises a threaded rod and a screw head, the nut is provided with a screw hole, the lower end face of the screw head of the bolt is provided with a first flange face provided with a plurality of first tooth face grooves, a bearing plane is arranged between two adjacent first tooth face grooves, and two sides of each first tooth face groove are provided with a first screwing slope and a first exist slope. One end of the nut is provided with a second flange face matched with the first flange face, the second flange face is provided with a plurality of second tooth face grooves, a second bearing plane is arranged between two adjacent second tooth face grooves, and two sides of each second tooth face groove are provided with a second screwing slope and a second exit slope. The bolt and nut which are used on the large wind driven generator have locking force which is always stable and reliable, effectively prevent loosening of the bolt, and are free of scheduled maintenance and simple in structure.
Description
[technical field]
The utility model relates to a kind of screw bolt and nut that is used on the large-scale wind driven generator.
[background technique]
A large amount of high-strength bolts have been installed on the large-scale wind driven generator, because wind-driven generator can not stop to rock in wind, this makes the 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.
[model utility content]
The purpose of the utility model is to overcome the deficiency of existing technology, provides a kind of bolted coupling mechanism force all-the-time stable that is used on the large-scale wind driven generator reliable, effectively prevents bolt looseness, realizes exempting to decide inspection, screw bolt and nut simple in structure.
The purpose of the utility model is achieved in that
A kind of screw bolt and nut that is used on the large-scale wind driven generator; Described bolt comprises threaded stem and spiral shell head; Described nut is provided with screw, it is characterized in that the spiral shell head lower end surface of described bolt is provided with first flanged surface, has 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 screw bolt and nut 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 screw bolt and nut 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 screw bolt and nut 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 screw bolt and nut 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.
Flanged surface, the flank of tooth groove of the screw bolt and nut that the utility model 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 the bolt of the utility model;
Fig. 2 is the stereogram of the nut of the utility model.
[embodiment]
A kind of screw bolt and nut that is used on the large-scale wind driven generator; Described bolt 1 comprises threaded stem 11 and spiral shell head 12; Described nut 2 is provided with screw 20, and spiral shell head 12 lower end surfaces of described bolt 1 are provided with on first flanged surface, 121, the first flanged surfaces 121 and have a plurality of first flank of tooth grooves 122; Having 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 tightens slope 1221 and first and withdraws 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 utility model 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 utility model 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 (5)
1. screw bolt and nut that is used on the large-scale wind driven generator; Described bolt (1) comprises threaded stem (11) and spiral shell head (12); Described nut (2) is provided with screw (20); Spiral shell head (12) lower end surface that it is characterized in that described bolt (1) is provided with first flanged surface (121); Have 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 screw bolt and nut 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 screw bolt and nut 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 screw bolt and nut 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 screw bolt and nut 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120359195 CN202266562U (en) | 2011-09-23 | 2011-09-23 | Bolt and nut which are used on large wind driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120359195 CN202266562U (en) | 2011-09-23 | 2011-09-23 | Bolt and nut which are used on large wind driven generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202266562U true CN202266562U (en) | 2012-06-06 |
Family
ID=46157359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120359195 Expired - Lifetime CN202266562U (en) | 2011-09-23 | 2011-09-23 | Bolt and nut which are used on large wind driven generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202266562U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506049A (en) * | 2011-09-23 | 2012-06-20 | 广东明阳风电产业集团有限公司 | Fastening device used on large-sized wind driven generator |
| CN103233635A (en) * | 2013-05-03 | 2013-08-07 | 合肥美的荣事达电冰箱有限公司 | Hinge device for refrigerator and refrigerator with same |
| CN108412885A (en) * | 2017-07-26 | 2018-08-17 | 满洲里中林科技干燥设备有限公司 | A kind of all aluminium alloy dry kiln Antisliding bolt |
| CN108825643A (en) * | 2018-07-04 | 2018-11-16 | 蚌埠艾普压缩机制造有限公司 | A kind of hydrogenation stations high pressure hydrogen compressor flange thread connection type crosshead |
-
2011
- 2011-09-23 CN CN 201120359195 patent/CN202266562U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506049A (en) * | 2011-09-23 | 2012-06-20 | 广东明阳风电产业集团有限公司 | Fastening device used on large-sized wind driven generator |
| CN103233635A (en) * | 2013-05-03 | 2013-08-07 | 合肥美的荣事达电冰箱有限公司 | Hinge device for refrigerator and refrigerator with same |
| CN108412885A (en) * | 2017-07-26 | 2018-08-17 | 满洲里中林科技干燥设备有限公司 | A kind of all aluminium alloy dry kiln Antisliding bolt |
| CN108825643A (en) * | 2018-07-04 | 2018-11-16 | 蚌埠艾普压缩机制造有限公司 | A kind of hydrogenation stations high pressure hydrogen compressor flange thread connection type crosshead |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 528437 Torch Road, Torch Development Zone, Guangdong, Zhongshan, No. 22 Patentee after: Ming Yang wisdom Energy Group AG Address before: 22 Ming Yang Industrial Zone, Torch Road, torch hi tech Industrial Development Zone, Guangdong, Zhongshan 528400, China Patentee before: Guangdong Mingyang Wind Power Group Co., Ltd. |
|
| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120606 |
|
| CX01 | Expiry of patent term |