CN202707740U - Aluminum alloy small short-tail rivet - Google Patents
Aluminum alloy small short-tail rivet Download PDFInfo
- Publication number
- CN202707740U CN202707740U CN2012203483842U CN201220348384U CN202707740U CN 202707740 U CN202707740 U CN 202707740U CN 2012203483842 U CN2012203483842 U CN 2012203483842U CN 201220348384 U CN201220348384 U CN 201220348384U CN 202707740 U CN202707740 U CN 202707740U
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- rivet
- aluminum alloy
- groove section
- ring groove
- collar
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Abstract
An aluminum alloy small short-tail rivet comprises a rivet and a sleeve ring, wherein the rivet is composed of a locking ring groove section and a buckle short ring groove section, the locking ring groove is provided with a rivet head, a bare rod, and a sleeve ring from front to back in a squeezing and matching mode, and the buckle short ring groove section is arranged on the tail portion of the rivet and used for clamping in a riveting machine. Curve radius of each ring groove in the locking ring groove section accord with the condition that R1 is larger than R4, and R2 is larger than R3. A front end bevel angle a in the buckle short ring groove section is larger than a rear end bevel angle b. The aluminum alloy small short-tail rivet is a fastening element for a dome silo structural component, is fastened and connected by utilizing permanent plastic deformation of metal, and is lighter than a carbon steel rivet. The rivet and a connected element are made of aluminum alloy, so corrosion-resistant property of the dome silo is improved, and service life of the dome silo is prolonged. A locking groove shape can promote sleeve ring metal to flow during riveting, prevents vibration after the riveting and during pulling off, and improves tightness and loosening-resistant property. A tail portion groove shape enables clamps and the tail portion to be meshed and not to release, and is low in riveting capacity. The aluminum alloy small short-tail rivet is used on an all-aluminum dome silo used for processing bulk materials such as sewage in a port and wharf.
Description
(1) technical field: the utility model aluminum alloy small dimension Bobtail tension rivet relates to a kind of fastening piece of low rivet force.Be mainly used on the full aluminum dome storehouse that the loose unpacked materials such as harbour, harbour, sewage treatment are processed.The riveted joint class (B21J) and the fastening piece class (F16B) that belong to metal machining.
(2) background technique:
Existing at the harbour, the loose unpacked materials such as harbour, sewage treatment process and select full aluminum dome storehouse, aluminum dome storehouse need to be connected and fixed the aluminum design part.If adopt the Ordinary Steel pulling rivet to be connected and fixed, there are the following problems: 1. the Ordinary Steel pulling rivet can increase the weight in aluminum dome storehouse.2. with behind the Ordinary Steel pulling rivet riveted joint aluminum dome storehouse, cause the poor corrosion resistance in aluminum dome storehouse because Ordinary Steel is perishable.
(3) summary of the invention:
The aluminum alloy small dimension Bobtail tension rivet that the utility model proposes is exactly that the existing full aluminum dome storehouse weight of processing for loose unpacked materials such as harbour, harbour, sewage treatments of solution is large, the problem of poor corrosion resistance.
Its technological scheme is as follows:
Aluminum alloy small dimension Bobtail tension rivet is comprised of rivet and the collar; It is characterized in that:
Rivet forms by the ailhead that connects in turn from front to back, polished rod, the locking annular groove section that cooperates with collar extruding with for buckleing thin becate groove section with the afterbody one of riveting machine inner sleeve claw clamping; In each annular groove of locking annular groove section from front to back in turn subsequent corrosion be R
1, R
2, R
3, R
4, R wherein
1R
4, R
2R
3The afterbody one thin becate groove section Inner Front End inclined-plane of button and radial cross section angle are a, and inclined-plane, rear end and radial cross section angle are b, wherein a〉b; The collar is comprised of flange plate and texturing zone.Rivet and the collar all adopt aluminum alloy material.
Above-mentioned ailhead is existing three kinds, can be by being chosen by the riveted holes shape and structure of riveting parts.The length of polished rod is by being determined by the thickness of riveting parts.Here when nominal diameter was 5mm, 6mm, 8mm or 10mm, corresponding collar flange plate external diameter span was 9.4-9.9mm, 12.32-13.08mm, 15.49-16.26mm or 18.54-19.56mm.
The utility model beneficial effect:
1) aluminum alloy small dimension Bobtail tension rivet is a kind of fastening piece for riveted joint dome chamber structure spare, utilize the mode of the permanent plastic deformation of metal to be fastenedly connected, its weight ratio carbon steel pulling rivet is light, rivet and connected piece material are all aluminum alloy, improve the corrosion resistance in dome storehouse, increased the working life in dome storehouse.2) locking annular groove section adopts R
1R
4, R
2R
3, representing that namely R1 and R2 are large, this shape is the metal flow (flowing forward) of the collar in order to promote to rivet; R4 and R3 are little, this shape is to hinder flow (the flowing backward) of collar metal under vibration or the state that pulls in order to rivet rear pulling rivet, and this groove design has improved circular groove and tightened up performance, can increase the reliability after the connection, under the operating mode of vibration, has better anti-loosening property.3) design angle a in the thin becate groove of afterbody 1 button〉b, angle a is large to make things convenient for entering of riveting machine claw, is difficult for after the little claw of angle b and the afterbody interlock threading off when bearing active force, makes closely cooperating of rivet and riveting machine inner sleeve claw when riveting, and rivet force is low.4) collar is set up the larger area flange plate, and the surface of contact of riveting parts and the collar is larger when making riveted joint, reduces pressure, guarantees the reliability of installing.
(4) description of drawings
Fig. 1 aluminum alloy small dimension Bobtail tension rivet structural drawing.
Fig. 2 Fig. 1 I place partial enlarged drawing (locking annular groove section annular groove).
Fig. 3 Fig. 1 II place partial enlarged drawing (the thin becate groove section annular groove of afterbody one button).
Fig. 4 aluminum alloy small dimension Bobtail tension rivet clinching method first step diagram.
Fig. 5 aluminum alloy small dimension Bobtail tension rivet clinching method second step diagram.
The 3rd step of Fig. 6 aluminum alloy small dimension Bobtail tension rivet clinching method diagram.
The 4th step of Fig. 7 aluminum alloy small dimension Bobtail tension rivet clinching method diagram.
(5) embodiment
Present embodiment aluminum alloy small dimension Bobtail tension rivet structure is as follows:
See Fig. 1, aluminum alloy small dimension Bobtail tension rivet M is comprised of rivet 1 and the collar 2.Rivet 1 forms by the ailhead 1.1 that connects in turn from front to back, polished rod 1.2, the locking annular groove section 1.3 that cooperates with collar extruding with for buckleing thin becate groove section 1.4 with the afterbody one of riveting machine inner sleeve claw clamping.The collar is comprised of flange plate 2.1 and texturing zone 2.2; Rivet and the collar all adopt aluminum alloy material.When the nominal diameter of rivet 1 was 5mm, 6mm, 8mm or 10mm, corresponding collar flange plate 2.1 external diameter spans were 9.4-9.9mm, 12.32-13.08mm, 15.49-16.26mm or 18.54-19.56mm.
See Fig. 2, in above-mentioned locking annular groove section ⒈ 3 each annular groove from front to back in turn subsequent corrosion be R
1, R
2, R
3, R
4, R wherein
1R
4, R
2R
3See Fig. 3, above-mentioned afterbody one button thin becate groove section 1.4 Inner Front End inclined-planes and radial cross section angle are a, and inclined-plane, rear end and radial cross section angle are b, wherein a〉b.
Above-mentioned aluminum alloy small dimension Bobtail tension rivet clinching method is as follows: the first step: see Fig. 4, rivet 1 is passed connected two members 3,4 riveted holes 3.1; The collar 2 is spun on the locking annular groove section 1.3 of rivet.Second step: see Fig. 5, rivet 1 is stretched in the riveting machine 5, riveting machine inner sleeve claw 5.1 is connected on the afterbody 1 thin becate groove section 1.4, make afterbody and claw fully cooperate interlock.The 3rd step: see Fig. 6, start riveting machine 5, inner sleeve claw 5.1 promptly rivet afterbody one buckle thin becate groove section 1.4 and is pulled back, and riveting machine overcoat 5.2 moves forward, and promotes the also extruding collar 2, locks in annular groove section 1.3 annular grooves until collar texturing zone 2.2 metal patterns are pressed in; The collar 2 and rivet 1 reach the setting riveting pressure behind locking annular groove section 1.3 mold pressing lockings, overcoat 5.2 front ends are extruded into flange plate 2.2 surfaces.The 4th step: see Fig. 7, riveting machine 5 inner sleeves 5.1 overcoats 5.2 withdraw from backward, and clinching method is finished.
Claims (2)
1. aluminum alloy small dimension Bobtail tension rivet is comprised of rivet and the collar; It is characterized in that:
Rivet (1) forms by the ailhead (1.1) that connects in turn from front to back, polished rod (1.2), the locking annular groove section (1.3) that cooperates with collar extruding with for buckleing thin becate groove section (1.4) with the afterbody one of riveting machine (5) inner sleeve claw clamping; In each annular groove of locking annular groove section from front to back in turn subsequent corrosion be R
1, R
2, R
3, R
4, R wherein
1R
4, R
2R
3The afterbody one thin becate groove section Inner Front End inclined-plane of button and radial cross section angle are a, and inclined-plane, rear end and radial cross section angle are b, wherein a〉b; The collar is comprised of flange plate (2.1) and texturing zone (2.2); Rivet and the collar all adopt aluminum alloy material.
2. by the described small dimension Bobtail tension rivet of claim 1, when the nominal diameter that it is characterized in that rivet (1) was 5mm, 6mm, 8mm or 10mm, corresponding collar flange plate external diameter span was 9.4-9.9mm, 12.32-13.08mm, 15.49-16.26mm or 18.54-19.56mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203483842U CN202707740U (en) | 2012-07-18 | 2012-07-18 | Aluminum alloy small short-tail rivet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203483842U CN202707740U (en) | 2012-07-18 | 2012-07-18 | Aluminum alloy small short-tail rivet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202707740U true CN202707740U (en) | 2013-01-30 |
Family
ID=47588047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012203483842U Expired - Lifetime CN202707740U (en) | 2012-07-18 | 2012-07-18 | Aluminum alloy small short-tail rivet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202707740U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151203A (en) * | 2016-08-08 | 2016-11-23 | 眉山中车紧固件科技有限公司 | Single cavity Bobtail tension rivet and installation method |
| CN111379776A (en) * | 2020-04-14 | 2020-07-07 | 眉山中车紧固件科技有限公司 | Acorn ring groove single-side fastener and mounting method thereof |
| CN111396429A (en) * | 2020-04-14 | 2020-07-10 | 眉山中车紧固件科技有限公司 | Multi-groove single-side ring groove fastener and mounting method thereof |
-
2012
- 2012-07-18 CN CN2012203483842U patent/CN202707740U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151203A (en) * | 2016-08-08 | 2016-11-23 | 眉山中车紧固件科技有限公司 | Single cavity Bobtail tension rivet and installation method |
| CN111379776A (en) * | 2020-04-14 | 2020-07-07 | 眉山中车紧固件科技有限公司 | Acorn ring groove single-side fastener and mounting method thereof |
| CN111396429A (en) * | 2020-04-14 | 2020-07-10 | 眉山中车紧固件科技有限公司 | Multi-groove single-side ring groove fastener and mounting method thereof |
| CN111396429B (en) * | 2020-04-14 | 2024-04-16 | 眉山中车紧固件科技有限公司 | Multi-groove blind ring groove fastener and installation method thereof |
| CN111379776B (en) * | 2020-04-14 | 2024-06-04 | 眉山中车紧固件科技有限公司 | Acorn ring groove blind fastener and installation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: MEISHAN CSR FASTENER SCIENCE+TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: NANCHE MEISHAN ROLLING STOCK CO., LTD. Effective date: 20131217 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20131217 Address after: 620032, No. two, 821, Science Park, Dongpo District, Sichuan, Meishan Patentee after: MEI SHAN CSR FASTENER SCIENCE&TECHNOLOGY Co.,Ltd. Address before: 620032 technical center of CSR Meishan Vehicle Co., Ltd., Chongren Town, Dongpo District, Sichuan, Meishan Patentee before: CSR MEISHAN ROLLING STOCK Co.,Ltd. |
|
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 620032, No. two, 821, Science Park, Dongpo District, Sichuan, Meishan Patentee after: MEISHAN CRRC FASTENING SYSTEM Co.,Ltd. Address before: 620032, No. two, 821, Science Park, Dongpo District, Sichuan, Meishan Patentee before: MEI SHAN CSR FASTENER SCIENCE&TECHNOLOGY Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130130 |