CN202100582U - Bolt with short thread ending - Google Patents
Bolt with short thread ending Download PDFInfo
- Publication number
- CN202100582U CN202100582U CN2011201892031U CN201120189203U CN202100582U CN 202100582 U CN202100582 U CN 202100582U CN 2011201892031 U CN2011201892031 U CN 2011201892031U CN 201120189203 U CN201120189203 U CN 201120189203U CN 202100582 U CN202100582 U CN 202100582U
- Authority
- CN
- China
- Prior art keywords
- bolt
- thread
- ending
- section
- short
- 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 - Fee Related
Links
Images
Abstract
The utility model relates to a bolt with a short thread ending, which comprises a bolt head, a screw rod part and a thread part. The structure adopted by the bolt is that an ending part is arranged between the screw rod part and the thread part; and the distance of the ending part is 0.7P-1.25P, wherein, the P is the thread pitch. According to the bolt with the short thread ending, the length of the thread ending is reduced so as to effectively increase the length of the thread part. When the bolt provided by the utility model and a corresponding nut are assembled through screwing, the pretightening force is more reliable, and the assembling quality of an airplane is improved.
Description
Technical field
The utility model relates to a kind of short thread ending bolt, is applicable to most of bolt class part.
Background technique
In commercial production, the problem of reliable pretightening force usually appears not reaching when adopting bolts assemblies, traces it to its cause; The overwhelming majority is that promptly screw-thread ending is an example by certain navigation mark standard owing to there is a transition zone between the screw thread of bolt class part and the polished rod; The ending segment distance is generally 1P～2P; P is a pitch, and screw-thread ending is long, then can cause the problems referred to above.Under the normal condition, the way that solves this type of problem is on bolt, to increase the technology pad, promptly is equivalent to increase the thickness of Assembly part, thereby makes nut and bolt carry out pretension.But for the assembling of aircraft, the sector-meeting of unsuitable increase craftwork pad causes the aircraft weightening finish, influences the assembly quality of aircraft, so pretightening force how to handle bolt is not enough, is the major issue of aircraft assembling.
Summary of the invention
The technical problem that the utility model will solve provides a kind of short thread ending bolt; Under the prerequisite that satisfies bolt bolt related mechanical properties; This short thread ending bolt shortens screw-thread ending, effectively increases the length of helical thread portion, when at this moment screwing assembling with respective nut; Can reach more reliable pretightening force, thereby improve the aircraft assembly quality.
For overcoming the above problems; The concrete technological scheme of the utility model is following: a kind of short thread ending bolt, comprise bolt head, polished rod section and thread section, and it is characterized in that: between polished rod section and thread section, also be provided with the ending section; The distance of ending section is 0.7P～1.25P, and wherein P is a pitch.
After this short thread ending bolt had adopted 0.7P～1.25P, the length of effective thread part increased, and ending shortens, and convenient the use reduced the use of technology pad in the assembly process, avoided the unnecessary weightening finish of aircraft.
Description of drawings
Fig. 1 is the structural representation of short thread ending bolt.
Embodiment
As shown in Figure 1, a kind of short thread ending bolt comprises bolt head 1, polished rod section 2 and thread section 3, it is characterized in that: between polished rod section and thread section, also be provided with ending section 4, the distance of ending section 4 is 0.7P～1.25P, and wherein P is a pitch.
Large-diameter rod bolt with common metric thread M8 specification in certain navigation mark standard is an example, and thread section length is 14mm, and effective thread length is 11.5mm, and the polished rod segment length is 34mm, and screw-thread ending section extreme length is 2.5mm.In actual use, the bolt that cooperates with nut is when being fastenedly connected, and what it mainly acted on is the effective thread part of bolt; Suitable increase reach has only the ending of shortening segment length, so the screw-thread ending segment length is controlled at 0.7P～1.25P scope; When the pitch of M8 bolt is 1.25mm; The ending segment length can be 0.875 ~ 1.5625mm, and the screw thread effective length effectively increases before like this, has promptly solved and can not tighten the problem that reaches reliable pretightening force in the assembly process.
Claims (1)
1. a short thread ending bolt comprises bolt head, polished rod section and thread section, it is characterized in that: between polished rod section and thread section, also be provided with the ending section, the distance of ending section is 0.7P～1.25P, and wherein P is a pitch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201892031U CN202100582U (en) | 2011-06-08 | 2011-06-08 | Bolt with short thread ending |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201892031U CN202100582U (en) | 2011-06-08 | 2011-06-08 | Bolt with short thread ending |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202100582U true CN202100582U (en) | 2012-01-04 |
Family
ID=45386596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201892031U Expired - Fee Related CN202100582U (en) | 2011-06-08 | 2011-06-08 | Bolt with short thread ending |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202100582U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104653557A (en) * | 2013-11-25 | 2015-05-27 | 空中客车运营简化股份公司 | Element for attaching parts of an assembly |
-
2011
- 2011-06-08 CN CN2011201892031U patent/CN202100582U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104653557A (en) * | 2013-11-25 | 2015-05-27 | 空中客车运营简化股份公司 | Element for attaching parts of an assembly |
| US10072695B2 (en) | 2013-11-25 | 2018-09-11 | Airbus Operations (Sas) | Fixing element for components of an assembly |
| CN104653557B (en) * | 2013-11-25 | 2018-12-14 | 空中客车运营简化股份公司 | The retaining element of component for fixation kit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202100582U (en) | Bolt with short thread ending | |
| CN203670399U (en) | Locking bolt | |
| CN202914489U (en) | Composite bolt | |
| CN202926831U (en) | Locking structure of threaded connection pair | |
| CN202673952U (en) | Thread connecting piece | |
| CN203809474U (en) | Anti-disengaging bolt assembly for bridge | |
| CN203680165U (en) | Special spanner for stud bolt | |
| CN104006054A (en) | Multifunctional u-shaped adjusting bolt | |
| CN204371901U (en) | The screw rod of anti-macroseism, expansion rod, chek bolt | |
| CN203051391U (en) | Pre-tightening bolt with mounting function | |
| CN202510489U (en) | Triangular combined stud | |
| CN202132458U (en) | Double-nut threaded pre-tightening ball screw assembly | |
| CN203585031U (en) | Bolt for fixation of electric baby carriage | |
| CN205114478U (en) | Unit direction holds up paper -back edition to put | |
| CN203604461U (en) | Fixing device for perpendicularly installing coupler | |
| CN202510491U (en) | Hexagonal combined stud | |
| CN202080327U (en) | Steering arm shaft assembly | |
| CN202520746U (en) | Waist-shaped combined stud | |
| CN204553480U (en) | Nut | |
| CN203906490U (en) | Multifunctional u-shaped adjusting bolt | |
| CN202510490U (en) | Pentagonal combined stud | |
| CN202040198U (en) | Automobile steering ball stud | |
| CN203257842U (en) | Shear nut | |
| CN203161764U (en) | Flange step bolt | |
| CN202220784U (en) | Bolt |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120104 Termination date: 20140608 |