CN201475112U - Large-bottom threaded self-plugging rivet - Google Patents
Large-bottom threaded self-plugging rivet Download PDFInfo
- Publication number
- CN201475112U CN201475112U CN200920308140XU CN200920308140U CN201475112U CN 201475112 U CN201475112 U CN 201475112U CN 200920308140X U CN200920308140X U CN 200920308140XU CN 200920308140 U CN200920308140 U CN 200920308140U CN 201475112 U CN201475112 U CN 201475112U
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- CN
- China
- Prior art keywords
- core bar
- nail
- rivet
- screw thread
- drive nut
- 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
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Abstract
The utility model discloses a large-bottom threaded self-plugging rivet. The large-bottom threaded self-plugging rivet consists of a drive nut, a rivet body, a rivet sheath, and a core bar, wherein threads are formed on the core bar; the rivet body and the rivet sheath are sheathed on the core bar; the drive nut is screwed on threads of the core bar; a boss is arranged at the end part of the core bar; the diameter of the outer circle of the boss of the core bar and the diameter of the outer circle of the rivet sheath are smaller than or equal to that of the outer circle of the rivet body; a countersunk conical surface and a horn-shaped bevel surface are formed at one end of the rivet body; an extrusion guide conical surface is formed at the other end of the rivet body; and a bevel surface corresponding to the horn-shaped bevel surface of the rivet body is also formed at one end of the drive nut. The large-bottom threaded self-plugging rivet has the advantages of convenient use and strong fatigue resistance, and can bear the complex alternating stress on plane. The large-bottom threaded self-plugging rivet suits the occasions with high reliability requirement and severe work environment.
Description
Technical field
The utility model relates to a kind of big footing screw thread pumping nail, belongs to sheet material riveting technology field.
Background technique
At present, prior art is used for the rivet of sandwich plate riveted joint, generally adopts Drawing-Core rivet, this Drawing-Core rivet since fatigue resistance low, can not bear complicated alternating stress, therefore in the riveted joint of aircraft composite board is used, be restricted.
The model utility content
The purpose of this utility model is, provide a kind of easy to use, fatigue resistance is higher, and can bear the big footing screw thread pumping nail of complicated alternating stress effect on the aircraft, to overcome the deficiencies in the prior art.
The utility model is to constitute like this: big footing screw thread pumping nail of the present utility model is by drive nut, the nail body, nail cover and core bar are formed, on core bar, be provided with screw thread, nail body and nail cover all are enclosed within on the core bar, on the drive nut on the screw thread of core bar, end at core bar is provided with boss, the outside diameter of the boss outside diameter of core bar and nail cover all is less than or equal to the outside diameter of following closely body, end at the nail body is provided with the countersunk head conical surface and horn mouth inclined-plane, the other end at the nail body is provided with the extruding guiding conical surface, also is provided with and follows closely corresponding inclined-plane, body horn mouth inclined-plane at an end of drive nut.
The countersunk head angle [alpha] of the countersunk head conical surface of above-mentioned nail body is: 99 degree≤α≤101 degree.
On above-mentioned nail body, be provided with locking slot.
On aforesaid core bar, be provided with cut-off neck slot.
The nail body is a titanium alloy T i-6AL-4V material structure; The nail cover is stainless steel 1Cr18Ni9Ti material structure; Core bar is a refractory alloy A286 material structure.
Owing to adopted technique scheme, the utility model adopts the big footing screw thread of the countersunk head titanium alloy pumping nail of countersunk head conical surface type, the material of its nail body is titanium alloy T i-6AL-4V, and the material of nail cover is stainless steel 1Cr18Ni9Ti, and core bar adopts refractory alloy A286 materials processing; In addition, the utility model has adopted to tighten up by drive nut and has carried out riveted way, and when riveted joint was finished, core bar connected as one with nail body, nail cover, has strengthened the disconnected neck power value of core bar in structure than general pumping nail, can strengthen the tightness of connected piece thus; In nail body rod portion with the be shaped self-locking structure of screw thread of the closing in mode that has adopted the locking slot type, make the screw thread self structure increase locking stability, thereby the reliability, the stability that are connected interlayer are greatly enhanced, anti-fatigue performance that also having strengthened greatly simultaneously looses core follows closely and the mechanical property of bearing the effect of aircraft complex alternating stress.Therefore, the utility model compared with prior art, the utility model not only has advantage easy to use, but also has the fatigue resistance height, can bear the advantage of complicated alternating stress effect on the aircraft.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
When Fig. 2 is the utility model riveted joint sandwich plate sheet material and the post-rift utilization structure schematic representation of cut-off neck slot of core bar.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples, but not as the foundation of the utility model being done any restriction.
Embodiment of the present utility model: big footing screw thread pumping nail of the present utility model is made up of drive nut 1, nail body 2, nail cover 3 and core bar 4, during making, nail body 2 adopts titanium alloy T i-6AL-4V material, nail cover 3 adopts stainless steel 1Cr18Ni9Ti material, and core bar 4 adopts refractory alloy A286 material; On core bar 4, produce screw thread and boss 4.1 and cut-off neck slot 4.2, to follow closely body 2 and follow closely cover 3 and all be enclosed within on the core bar 4, with on the drive nut 1 on the screw thread of core bar 4, the outside diameter of boss 4.1 outside diameters of core bar 4 and nail cover 3 all is made into is less than or equal to the outside diameter of following closely body 2, end at nail body 2 is produced the countersunk head conical surface 2.1 and horn mouth inclined-plane 2.2, and the countersunk head angle [alpha] that will follow closely the countersunk head conical surface 2.1 of body 2 is made as 100 degree, produce the extruding guiding conical surface 2.3 at the other end of nail body 2, and on nail body 2, suppress locking slot 2.4; Also produce and follow closely body 2 horn mouth inclined-planes 2.2 corresponding inclined-planes 1.1 at an end of drive nut 1.
When using the utility model, with the existing special-purpose riveting gun part core bar 4 that is critical, clamping fastens drive nut 1 at six square sockets of special-purpose riveting gun, prevent its rotation, the riveting gun motor drives the rotating shaft of the core bar that is critical and rotates in rotation, thereby core bar climbs stainless steel nail cover 3 drives in the process that screw thread screws out to nail body 2, and under the interception of riveted joint interlayer, impelling the distortion of stainless steel nail cover, the stainless steel nail cover after the distortion is with the sandwich plate of riveted joint fitting together (as shown in Figure 2) tightly; And core bar has overcome the reaction force that stainless deformation force and sandwich plate provide in the process that continue to screw out, and when the power value reached certain numerical value, the cut-off neck slot of being scribed in the core bar structure 4.2 ruptured destroyed; In this, the end-of-job of big footing screw thread pumping nail of the present utility model.Sandwich plate will be connected closely.Certainly, the power of this cut-off neck slot fracture is by the technology controlling and process in the processing, thereby guarantees that core bar exposes the height of interlayer face.In working state shown in Figure 2, big footing screw thread pumping nail of the present utility model will be born complicated alternating stress, and have quite high tired performance assessment criteria.
The utility model is particularly suitable for use in some reliability requirement height, the occasion of work under bad environment.
Claims (5)
1. one kind big footing screw thread pumping nail, it is characterized in that: big footing screw thread pumping nail is by drive nut (1), nail body (2), nail cover (3) and core bar (4) are formed, on core bar (4), be provided with screw thread, nail body (2) and nail cover (3) all are enclosed within on the core bar (4), drive nut (1) is gone up on the screw thread of core bar (4), be provided with boss (4.1) in the end of core bar (4), the outside diameter of boss (4.1) outside diameter of core bar (4) and nail cover (3) all is less than or equal to the outside diameter of nail body (2), end at nail body (2) is provided with the countersunk head conical surface (2.1) and horn mouth inclined-plane (2.2), the other end at nail body (2) is provided with the extruding guiding conical surface (2.3), also is provided with and follows closely corresponding inclined-plane, body (2) horn mouth inclined-plane (2.2) (1.1) at an end of drive nut (1).
2. big footing screw thread pumping nail according to claim 1 is characterized in that: the countersunk head angle [alpha] of the countersunk head conical surface (2.1) of nail body (2) is 99 degree≤α≤101 degree.
3. big footing screw thread pumping nail according to claim 1 is characterized in that: be provided with locking slot (2.4) on nail body (2).
4. big footing screw thread pumping nail according to claim 1 is characterized in that: be provided with cut-off neck slot (4.2) on core bar (4).
5. big footing screw thread pumping nail according to claim 1 is characterized in that: nail body (2) is a titanium alloy T i-6AL-4V material structure; Nail cover (3) is a stainless steel 1Cr18Ni9Ti material structure; Core bar (4) is a refractory alloy A286 material structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920308140XU CN201475112U (en) | 2009-08-17 | 2009-08-17 | Large-bottom threaded self-plugging rivet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920308140XU CN201475112U (en) | 2009-08-17 | 2009-08-17 | Large-bottom threaded self-plugging rivet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201475112U true CN201475112U (en) | 2010-05-19 |
Family
ID=42411359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920308140XU Expired - Fee Related CN201475112U (en) | 2009-08-17 | 2009-08-17 | Large-bottom threaded self-plugging rivet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201475112U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102767552A (en) * | 2012-08-06 | 2012-11-07 | 贵州航瑞科技有限公司 | Novel titanium alloy self-plugging rivet |
| CN102927103A (en) * | 2012-11-06 | 2013-02-13 | 三门通顺铆钉有限公司 | Open-contraction brake block rivet and production method thereof |
| CN103225643A (en) * | 2012-01-30 | 2013-07-31 | 湖北博士隆科技有限公司 | Titanium alloy combined type lock cylinder rivet |
| CN103291719A (en) * | 2013-06-25 | 2013-09-11 | 贵州航天精工制造有限公司 | Self-plugging rivet |
| CN105626654A (en) * | 2016-02-18 | 2016-06-01 | 航天精工股份有限公司 | Bolt and nut assembly structure installed on one face |
-
2009
- 2009-08-17 CN CN200920308140XU patent/CN201475112U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103225643A (en) * | 2012-01-30 | 2013-07-31 | 湖北博士隆科技有限公司 | Titanium alloy combined type lock cylinder rivet |
| CN102767552A (en) * | 2012-08-06 | 2012-11-07 | 贵州航瑞科技有限公司 | Novel titanium alloy self-plugging rivet |
| CN102767552B (en) * | 2012-08-06 | 2014-12-10 | 贵州航瑞科技有限公司 | Novel titanium alloy self-plugging rivet |
| CN102927103A (en) * | 2012-11-06 | 2013-02-13 | 三门通顺铆钉有限公司 | Open-contraction brake block rivet and production method thereof |
| CN103291719A (en) * | 2013-06-25 | 2013-09-11 | 贵州航天精工制造有限公司 | Self-plugging rivet |
| CN103291719B (en) * | 2013-06-25 | 2015-06-17 | 贵州航天精工制造有限公司 | Self-plugging rivet |
| CN105626654A (en) * | 2016-02-18 | 2016-06-01 | 航天精工股份有限公司 | Bolt and nut assembly structure installed on one face |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20100519 Termination date: 20180817 |