CN202971893U - High pressure resistant riveted plug - Google Patents
High pressure resistant riveted plug Download PDFInfo
- Publication number
- CN202971893U CN202971893U CN2012205938518U CN201220593851U CN202971893U CN 202971893 U CN202971893 U CN 202971893U CN 2012205938518 U CN2012205938518 U CN 2012205938518U CN 201220593851 U CN201220593851 U CN 201220593851U CN 202971893 U CN202971893 U CN 202971893U
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- CN
- China
- Prior art keywords
- head
- collar
- rivet
- riveted joint
- stifled
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- Expired - Lifetime
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Abstract
The utility model discloses a high pressure resistant riveted plug. The high pressure resistant riveted plug is a novel sealing part manufactured by a riveting technology, and consists of a rivet and a lantern ring. The rivet consists of a head part, a polished rod section, a breaking groove and a ring groove section connected with a mounting tool. The periphery of the head part is in interference fit with an inner hole of the lantern ring in an extrusion way. In order to bring convenience for mounting, the rear end of the head part is conical, a chamfer is arranged at the front end of the outer circle of the lantern ring and is close to the front of the breaking groove, and the polished rod section is conical. A wide ring groove is formed in a joint of the head part and the polished rod section, and locking connection is realized after riveting, so that the sealing performance and the shock resistance are enhanced. The problem of sealing failures caused by the poor accuracy of a sealing thread and the aging of a sealant of the conventional high pressure plug screw is solved. During mounting, the coating of the sealant and the machining of the thread are not required, and only a special mounting tool is required. Great plastic deformation is formed by riveting, and seamless connection in a mounting hole is realized, so that the sealing performance is high. A material for the rivet is high in machinability and economy. A material for the lantern ring is low in yield limit and high in scalability and corrosion resistance. The high pressure resistant riveted plug is mainly used for the sealing of a process hole in places of automotive engines, pump bodies or gearboxes.
Description
(1) technical field: the high pressure resistant riveted joint of the utility model is stifled, is a kind of new type sealing element that utilizes riveting technology to make, and belongs to riveted joint class (B21J) and sealing class.Be mainly used in the sealing of the auxiliary holes such as motor car engine, the pump housing, gear-box.
(2) background technique: the Sealing of the occasion auxiliary holes such as existing motor car engine, the pump housing, gear-box generally adopts the sealing of high pressure plug screw.The quality of high pressure plug screw airtight quality depends primarily on the tolerance fit of plug screw and tapped hole, the required precision of double thread is higher, and need to be coated with sealer on screw thread, so not only have complicated operation, and the precision of screw thread and sealer aging easily caused seal failure.
(3) summary of the invention:
The high pressure resistant riveted joint that the utility model proposes is stifled, and the accuracy of thread that solves exactly above-mentioned existing high pressure plug screw sealing existence requires high and the aging problem that causes seal failure of sealer.
Its technological scheme is as follows:
High pressure resistant riveted joint is stifled, is comprised of rivet and the collar; It is characterized in that:
1) rivet by from front to back in turn for head 1, polished rod section 2, break groove 3 and form with the ring shaped slot section 4 that is connected with setting tool; 2) head is cylindrical body, and the collar 3 is cylindrical body, head periphery and collar inner hole extruding interference fit, and 1.1 places, head rear end are taper; Rivet is near breaking place, groove the place ahead, and the polished rod section is established taper 2.2; Collar cylindrical front end has chamfering 3.2; 3) in head ear end face and polished rod section joint foremost, the polished rod section is provided with wide annular groove 2.1, forms locking after riveted joint and connects 3.3.
Above-mentioned rivet bar can adopt 35K, and collar material can adopt 6061.Above-mentioned head can be taken as approximately 0.1mm with the magnitude of interference of cover interannular interference fit.
The nominal diameter D of the mounting hole 7 that above-mentioned riveted joint is stifled
4recBe respectively 4,5,6,7,8,9,10,11 or during 12mm; The ring shaped slot section diameter D of corresponding selection
1, head diameter D
2, collar D outer diameter
3, collar length L
1, the collar and head length sum L
2, head and the length of rivet sum L
3, install after the minimum and maximum diameter D of the stifled minimum and maximum length M of riveted joint, the stifled mounting hole of riveted joint
4Can be chosen as respectively numerical value shown in sequence number 1,2,3,4,5,6,7,8,9 in table 1; Table 1(mm)
The utility model beneficial effect:
1) provide excellent sealability after the installation: large plastic deformation occurs in the collar in installation process.Form seamless link with mounting hole 7 after the cover annular strain, reach the effect of sealing.Compression resistance is greater than 100Mpa.2) rivet bar is 35K, has good processibility and economic benefit; Collar material is 6061, has low yield strength and high ductility, and corrosion resistance is excellent.The material that selection intensity is lower makes the collar have good plasticity, is conducive to plastic deformation.3) easy for installation: installing does not need to be coated with sealer, does not need machining screw, only needs one special-purpose setting tool, quick and easy for installation.4) mechanical interlocking structure: the locking that after installing, rivet is connected to arrange with the collar connects 3.3 and is fixed together closely, and has good shock resistance.
(4) description of drawings
The high pressure resistant riveted joint bridging of Fig. 1 composition;
Fig. 2 Fig. 1 partial enlarged drawing W (wide annular groove 2.1 be connected connect 3.3);
Fig. 3 has the stifled outline drawing of the high pressure resistant riveted joint of symbol for dimensioning mark;
After Fig. 4 riveted joint installed, high pressure resistant riveted joint got lodged in pattern figure in mounting hole;
Fig. 5 rivets process first step diagram;
Fig. 6 rivets process second step diagram;
Fig. 7 rivets the 3rd step of process diagram;
Fig. 8 rivets the 4th step of process diagram;
Fig. 9 unloading process first step diagram;
Figure 10 unloading process second step diagram;
Figure 11 unloading process second step diagram;
The 3rd step of Figure 12 unloading process diagram;
The 4th step of Figure 13 unloading process diagram.
(5) embodiment
See Fig. 1, the high pressure resistant riveted joint of the present embodiment is stifled to be comprised of rivet and the collar.Specifically describe as follows:
1) see Fig. 1, rivet by from front to back in turn for head 1, polished rod section 2, break groove 4 and grab with 6 pinches of setting tool riveting machines the ring shaped slot section 5 that is connected and form.2) see Fig. 1, Fig. 8, head 1 is cylindrical body, and the collar 3 is cylindrical body, head periphery 1.2 and collar endoporus 3.1 extruding interference fit, and magnitude of interference is about 0.1mm.For ease of head being squeezed into collar endoporus, 1.1 places, head rear end are taper.See Fig. 1, near breaking groove 4 the place aheads places, the assembling of rivet and the collar is convenient in polished rod Duan Shangshe taper 2.2.See Fig. 1, Fig. 6, for the ease of the collar being inserted mounting hole 7 inner sleeve cylindrical front ends, chamfering 3.2 is arranged.3) see Fig. 1 and Fig. 2, in head ear end face and polished rod section 2 joint foremost, the polished rod section is provided with wide annular groove 2.1, forms locking after riveted joint and connects 3.3.
Above-mentioned rivet bar is 35K, and collar material is 6061.
See Table 1, Fig. 3 and Fig. 4, optimized dimensions and the parameter of the stifled design of the high pressure resistant riveted joint of the present embodiment are as follows: see Table 1 sequence number 1: the nominal diameter D of the stifled mounting hole 7 of high pressure resistant riveted joint
4recDuring=4mm; The ring shaped slot section diameter D of corresponding selection
1=1.9mm, head diameter D
2=3mm, collar D outer diameter
3=3.7mm, collar length L
1=3.6mm, the collar and head length sum L
2=6.5mm, head and the length of rivet sum L
3The stifled extreme length M of high pressure resistant riveted joint after=40.1mm, installation
Max=4.32mm and minimum length M
MinThe maximum dimension D of=2.81mm, the stifled mounting hole of high pressure resistant riveted joint
4Max=4.3mm, minimum diameter D
4Min=3.9mm.
See Fig. 4, stifled to above-mentioned high pressure resistant riveted joint, oil inlet hole 7.1 depth H in mounting hole must be more than or equal to the collar and head length sum L
2Be H 〉=L
2
The riveted joint process is as follows: see Fig. 5-Fig. 8
The riveted joint process first step: see Fig. 5, in the 5 insertion riveting machines 6 of rear end, collar ear end face 3.4 is close to the front-end face 6.2 of riveting machine, prepares to install with the stifled M of the high pressure resistant riveted joint that assembles.Riveted joint process second step: see Fig. 6, will insert in mounting hole 7 from the place ahead with the stifled front end of the high pressure resistant riveted joint of the collar.The 3rd step of riveted joint process: see Fig. 7, manually press the switch of riveting machine 6, after the folder lobe 6.1 of riveting machine blocks rivet afterbody ring shaped slot section 5, drive rivet and move backward, head 1 is drawn in the collar 3, and the collar expands and fills full mounting hole.Riveted joint process the 4th step: see Fig. 8, riveting machine 6 continues to pull back, and rivet is broken breaking groove 4 places, completes whole installation process.
Unloading process is as follows: when repair apparatus, often need to take apart from mounting hole high pressure resistant riveted joint is stifled.See Fig. 9-Figure 13.
The unloading process first step: see Fig. 9, first use drill bit 8 from rivet 1-2 rear end boring 2A.The unloading process second step: see Figure 10, Figure 11 utilizes and with the screw tap 9 of drift, rivet is gone out from the collar 3 front ends, and rivet rests on drift 9.2.The 3rd step of unloading process: see Figure 12, utilize screw tap 9.1 tapping on the collar 3.The 4th step of unloading process: see Figure 13, utilize Hydraulic power tools to extract with the screw tap 9 of drift, the collar and rivet are in company with dial-out.
Claims (4)
1. high pressure resistant riveted joint is stifled, is comprised of rivet and the collar; It is characterized in that:
1) rivet by from front to back in turn for head (1), polished rod section (2), break groove (4) and form with the ring shaped slot section (5) that is connected with setting tool;
2) head is cylindrical body, and the collar (3) is cylindrical body, head periphery and collar inner hole extruding interference fit, and taper is located to be in head rear end (1.1); Rivet is near breaking place, groove the place ahead, and the polished rod section is established taper (2.2); Collar cylindrical front end has chamfering (3.2);
3) in head ear end face and polished rod section joint foremost, the polished rod section is provided with wide annular groove (2.1), forms locking after riveted joint and connects (3.3).
2. stifled by the described riveted joint of claim 1, it is characterized in that: rivet bar is 35K, and collar material is 6061.
3. stifled by the described riveted joint of claim 1 or 2, it is characterized in that: head is about 0.1mm with the magnitude of interference of cover interannular interference fit.
4. stifled by the described riveted joint of claim 1, it is characterized in that: the nominal diameter D of the mounting hole (7) that riveted joint is stifled
4recBe respectively 4,5,6,7,8,9,10,11 or during 12mm; The ring shaped slot section diameter (D of corresponding selection
1), head diameter (D
2), collar external diameter (D
3), cover ring length (L
1), the collar and head length sum (L
2), head and the length of rivet sum (L
3), install after the minimum and maximum diameter (D of the stifled minimum and maximum length (M) of riveted joint, the stifled mounting hole of riveted joint
4) be chosen as respectively numerical value shown in sequence number 1,2,3,4,5,6,7,8,9 in table 1; Table 1(mm)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205938518U CN202971893U (en) | 2012-11-12 | 2012-11-12 | High pressure resistant riveted plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205938518U CN202971893U (en) | 2012-11-12 | 2012-11-12 | High pressure resistant riveted plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202971893U true CN202971893U (en) | 2013-06-05 |
Family
ID=48512969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012205938518U Expired - Lifetime CN202971893U (en) | 2012-11-12 | 2012-11-12 | High pressure resistant riveted plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202971893U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103591360A (en) * | 2013-11-04 | 2014-02-19 | 龙工（上海）精工液压有限公司 | Hydraulic sealing structure |
-
2012
- 2012-11-12 CN CN2012205938518U patent/CN202971893U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103591360A (en) * | 2013-11-04 | 2014-02-19 | 龙工（上海）精工液压有限公司 | Hydraulic sealing structure |
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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: 20131218 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20131218 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: 20130605 |