CN103161809A - Round head square neck bolt for towel barrel of new energy wind generating set - Google Patents
Round head square neck bolt for towel barrel of new energy wind generating set Download PDFInfo
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- CN103161809A CN103161809A CN 201110419291 CN201110419291A CN103161809A CN 103161809 A CN103161809 A CN 103161809A CN 201110419291 CN201110419291 CN 201110419291 CN 201110419291 A CN201110419291 A CN 201110419291A CN 103161809 A CN103161809 A CN 103161809A
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- round head
- new energy
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Abstract
The invention relates to a round head square neck bolt for a towel barrel of a new energy wind generating set. The round head square neck bolt comprises a bolt body which is composed of a flat round bolt cap, a square bolt neck which is connected with the bolt cap and a bolt rod. The bolt rod is composed of an unthreaded rod and a threaded rod, and an anti-rust oil layer is coated on the surface of the bolt body. According to the round head square neck bolt for the towel barrel of the new energy wind generating set, the torque coefficient of the bolt through coating oil is lowered, and the influence of a complex stress state of the bolt is lightened, large pretension force is achieved by small torque, the probability of twisting off of the bolt is greatly lowered, a crucial security effect on safety operation of a fan is achieved, and collapse caused by breaking of the bolt is effectively avoided.
Description
Technical field
The present invention relates to a kind of new energy wind energy power unit tower cylinder round head square neck bolt.
Background technique
Wind power equipment is mainly field work, natural condition are abominable, the wind and rain thunder and lightning, scorching summer and freezing winter, directly can have influence on the safe operation of wind power equipment, and bolt is the extremely important link of wind energy power unit, bolt is in the process that connects, because moment of torsion and pulling force acting in conjunction cause complex stress condition, material easily is fragility.Large diameter bolt material and heat treatment are inhomogeneous, particularly more are prone to material unstable when screw rod is longer, all easily can cause the problem of brittle failure, in addition, common bolt is easily loosening, and shear-carrying capacity is lower, in case bolt failure, the serious consequence that will cause blower fan to collapse.Therefore, the safe design of bolt and check are very crucial parts in wind energy power unit structure, and it directly affects bearing capacity, working life and the Safety performance of wind-powered electricity generation structure.
Summary of the invention
The technical problem to be solved in the present invention is: for overcoming the problem of above-mentioned existence, provide a kind of anti-brittle failure, be difficult for loosening and long service life new energy wind energy power unit tower cylinder round head square neck bolt.
The technical solution adopted for the present invention to solve the technical problems is: a kind of new energy wind energy power unit tower cylinder round head square neck bolt, comprise bolt body, formed by flat circular nuts, the square bolt neck and the bolt shank that are connected with nuts, described circular nuts, square bolt neck and bolt shank are overall structure, in order to prevent that bolt from getting rusty, the bolt body surface is coated with antirust oil reservoir.
Further, bolt shank is comprised of polished rod and threaded stem, and an end of polished rod and a side of square bolt neck are fixed, and the other end and threaded stem are fixed.Polished rod and threaded stem are structure as a whole.
The invention has the beneficial effects as follows, new energy wind energy power unit tower cylinder of the present invention has reduced torque coefficient of bolt with round head square neck bolt by oiling, alleviate the complex stress condition impact of bolt, reach larger pretension with less moment of torsion, the probability that bolt is twisted into two parts reduces greatly, safe operation to blower fan has played vital guaranteeing role, has effectively avoided because of collapsing that bolt fracture causes.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is structural representation of the present invention.
Fig. 2 is plan view of the present invention.
1. nuts in figure, 2. square bolt neck, 3-1. polished rod, 3-2. threaded stem.
Embodiment
In conjunction with the accompanying drawings, the present invention is further detailed explanation.These accompanying drawings are the schematic diagram of simplification, basic structure of the present invention only is described in a schematic way, so it only show the formation relevant with the present invention.
New energy wind energy power unit tower cylinder round head square neck bolt as shown in Figure 1, comprise bolt body, bolt body is comprised of flat circular nuts 1, the square bolt neck 2 and the bolt shank that are connected with nuts 1, and circular nuts 1, square bolt neck 2 and bolt shank are overall structure.Square bolt neck 2 is stuck in groove, rise stops the bolt rotary action, be provided with screw thread on bolt shank, get rusty in order to prevent bolt, the bolt body surface is coated with antirust oil reservoir.
Bolt shank is comprised of polished rod 3-1 and threaded stem 3-2, and the end of polished rod 3-1 and a side of square bolt neck 2 are fixed, and the other end and threaded stem 3-2 fix, and polished rod 3-1 and threaded stem 3-2 are structure as a whole.This bolt needs to coordinate with nut, is used for being fastenedly connected two with the part of through hole.Because the round head square neck bolt head is rounded, there is no the design of the available tool for helping of cross recess or interior hexagonal and so on, can also play antitheft effect in actual connection procedure.
Take above-mentioned foundation desirable embodiment of the present invention as enlightenment, by above-mentioned description, the relevant staff can in the scope that does not depart from this invention technological thought, carry out various change and modification fully.The technical scope of this invention is not limited to the content on specification, must determine its technical scope according to the claim scope.
Claims (3)
1. new energy wind energy power unit tower cylinder round head square neck bolt, it is characterized in that: comprise bolt body, described bolt body is comprised of flat circular nuts (1), the square bolt neck (2) and the bolt shank that are connected with nuts (1), described circular nuts (1), square bolt neck (2) and bolt shank are overall structure, and described bolt body is coated with antirust oil reservoir on the surface.
2. new energy wind energy power unit tower cylinder round head square neck bolt according to claim 1, it is characterized in that: described bolt shank is comprised of polished rod (3-1) and threaded stem (3-2), one side of one end of polished rod (3-1) and square bolt neck (2) is fixed, and the other end and threaded stem (3-2) are fixing.
3. new energy wind energy power unit tower cylinder round head square neck bolt according to claim 2, it is characterized in that: described polished rod (3-1) and threaded stem (3-2) are structure as a whole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110419291 CN103161809A (en) | 2011-12-14 | 2011-12-14 | Round head square neck bolt for towel barrel of new energy wind generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110419291 CN103161809A (en) | 2011-12-14 | 2011-12-14 | Round head square neck bolt for towel barrel of new energy wind generating set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103161809A true CN103161809A (en) | 2013-06-19 |
Family
ID=48585217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110419291 Pending CN103161809A (en) | 2011-12-14 | 2011-12-14 | Round head square neck bolt for towel barrel of new energy wind generating set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103161809A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106382293A (en) * | 2016-09-28 | 2017-02-08 | 海信（山东）空调有限公司 | Press bolt, technology for installing press bolt to chassis and air conditioner outdoor unit |
| CN108612727A (en) * | 2018-06-20 | 2018-10-02 | 海盐东盛紧固件制造有限公司 | A kind of anti-loose installation bolt |
| CN114273600A (en) * | 2022-01-07 | 2022-04-05 | 上海奥达科股份有限公司 | Square-neck bolt, forming die and forming process |
-
2011
- 2011-12-14 CN CN 201110419291 patent/CN103161809A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106382293A (en) * | 2016-09-28 | 2017-02-08 | 海信（山东）空调有限公司 | Press bolt, technology for installing press bolt to chassis and air conditioner outdoor unit |
| CN108612727A (en) * | 2018-06-20 | 2018-10-02 | 海盐东盛紧固件制造有限公司 | A kind of anti-loose installation bolt |
| CN114273600A (en) * | 2022-01-07 | 2022-04-05 | 上海奥达科股份有限公司 | Square-neck bolt, forming die and forming process |
| CN114273600B (en) * | 2022-01-07 | 2024-04-09 | 上海奥达科股份有限公司 | Square neck bolt, forming die and forming process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130619 |