CN204113353U - The riveted structure of the spacer sleeve on turbosupercharger nozzle ring capable of changing cross sections - Google Patents
The riveted structure of the spacer sleeve on turbosupercharger nozzle ring capable of changing cross sections Download PDFInfo
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- CN204113353U CN204113353U CN201420529192.0U CN201420529192U CN204113353U CN 204113353 U CN204113353 U CN 204113353U CN 201420529192 U CN201420529192 U CN 201420529192U CN 204113353 U CN204113353 U CN 204113353U
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- spacer sleeve
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Abstract
The utility model discloses a kind of riveted structure of the spacer sleeve on turbosupercharger nozzle ring capable of changing cross sections, it comprises one first workpiece, and the first described workpiece is provided with one first through hole; One second workpiece, described second workpiece is provided with second through hole coaxial with the first through hole; And a riveting parts, described riveting parts is nested with and is fixed with a spacer sleeve, the two ends of spacer sleeve offset with the two mutually close surfaces of the first workpiece and second workpiece respectively; The first described through hole and the second through hole include a cylindrical hole and a counter sink, and the hole wall of two counter sinks includes the first cone-shaped wall and the second cone-shaped wall that expand outwardly, and the two ends difference riveting of riveting parts is in two counter sinks.The lifting surface area that the utility model makes riveting parts is comparatively large, and make the amount of deformation of riveting parts less, the stress of riveting parts is less, makes riveting parts be not easy cracking, the intensity of riveting parts is improved and mechanical property is better.
Description
Technical field
The utility model relates to a kind of riveted structure of the spacer sleeve on turbosupercharger nozzle ring capable of changing cross sections.
Background technique
Turbosupercharger is widely used in the fields such as automobile, steamer, tank, particularly China's automobile emissions standards are more and more tighter, for meeting the requirement of Environmental Protection in China, all vehicles rise on January 1st, 2015 and all must reach state more than four emission standard and just can list, therefore examination and batch examination turbosupercharger are all being joined by domestic each vehicle main engine factory, and nozzle ring capable of changing cross sections product is one of critical piece of turbosupercharger.Affect by high temperature, high pressure, burn into thermal shock, fatigue etc. during turbocharger operation, working condition requirement when therefore not only material property will meet turbocharger operation, and connection between its each assembly is more safe and reliable.After the spacer sleeve connection of nozzle ring capable of changing cross sections, its tie point needs to reach 3000N ~ 4000N to tensile strength, and wants resistance to high temperature oxidation and high temperature resistance fatigue, and general welding or the design of riveted structure can not meet requirement.
In turbosupercharger nozzle ring capable of changing cross sections, the connection of spacer sleeve generally adopts welding manner in the prior art, its reliability is low, have a big risk, likely there is solder joint to come off and phenomenon of rupture when nozzle ring works, cause pressurized machine catastrophe failure, its welding process is as follows: the connection of the spacer sleeve in most of turbosupercharger nozzle ring capable of changing cross sections adopts molten solder technology, when two workpiece connect, generally first bore on cylindrical hole or a workpiece at two workpiece to have screw thread workpiece to bore cylindrical hole, then with spacer sleeve, the mode that two workpiece high temperature melting is welded is connected.The material of such mode to two workpiece has stricter requirement otherwise can there is the phenomenon of solder joint cracking, and the phenomenon that the material at solder joint place has embrittlement under high temperature action exists very large risk to nozzle ring at the severe working environment in later stage.
The spacer sleeve of part nozzle ring capable of changing cross sections is had to adopt conventional clinching method, when two workpiece are riveted mutually, generally first on two workpiece, get out a cylinder straight hole respectively, then two workpiece are riveted mutually by direct for riveting parts riveting on two cylinder straight holes, like this, after riveted joint completes, the head of riveting parts is pressed mutually with the surface of workpiece, lifting surface area is less, the amount of deformation of riveting parts is larger, the stress of riveting parts is comparatively large, easily causes the cracking of riveting parts, the low mechanics poor-performing of intensity of riveting point.
The major defect of above-mentioned riveted structure: the head of (1) riveting parts is pressed mutually with the surface of workpiece, and lifting surface area is less, the amount of deformation of riveting parts is comparatively large, and cracking risk is large; (2) for increasing the intensity of riveting point, the surplus of riveted joint needs to increase, and the height of spacer sleeve distortion and riveted joint will be caused to exceed the size of equipment, if the surplus reducing riveted joint can make again the intensity of riveting point not reach requirement; (3) in conventional rivet connection method, riveting point only rests on the surface of product, and intensity is low, and anti-fatigue ability is more weak, and during work, force bearing point all concentrates riveting point, has the risk come off when high temperature and dither.
Model utility content
Technical problem to be solved in the utility model is, a kind of riveted structure of the spacer sleeve on turbosupercharger nozzle ring capable of changing cross sections is provided, it makes the lifting surface area of riveting parts larger, make the amount of deformation of riveting parts less, the stress of riveting parts is less, make riveting parts be not easy cracking, make riveting parts intensity improve and mechanical property is better.
For solving the problems of the technologies described above, the riveted structure of the spacer sleeve on turbosupercharger nozzle ring capable of changing cross sections that the utility model provides, it comprises:
One first workpiece, the first described workpiece is provided with one first through hole;
One second workpiece, described second workpiece is provided with second through hole coaxial with the first through hole; And
One riveting parts, described riveting parts wears and riveting is fixed in the first through hole and the second through hole, described riveting parts is nested with and is fixed with a spacer sleeve, spacer sleeve is arranged between the first workpiece and second workpiece, and the two ends of spacer sleeve offset with the two mutually close surfaces of the first workpiece and second workpiece respectively;
The first described through hole and the second through hole include a cylindrical hole and a counter sink, two counter sinks be separately positioned on the first workpiece and second workpiece away from two on the surface, the hole wall of two cylindrical holes is cylindrical wall, the hole wall of two counter sinks includes the first cone-shaped wall and the second cone-shaped wall that expand outwardly, one end of two the first cone-shaped walls is connected with one end of two cylindrical walls respectively, the other end of two the first cone-shaped walls is connected with one end of two the second cone-shaped walls respectively, the other end of two the second cone-shaped walls respectively with the first workpiece and second workpiece away from two surfaces be connected, first cone-shaped wall and the second cone-shaped wall diameter that all passes through increases gradually, the two ends difference riveting of riveting parts is in two counter sinks.
As preferably, the angle of the axis of the first cone-shaped wall and the first through hole is 15 degree, and the angle of the axis of the second cone-shaped wall and the first through hole is 45 degree.
After adopting above structure, the utility model compared with prior art, has following advantage:
In the utility model, first workpiece and second workpiece are all provided with a counter sink, and the hole wall of two counter sinks includes the first cone-shaped wall and the second cone-shaped wall that expand outwardly, like this, rolled at the two ends of riveting parts and be riveted on after in two counter sinks, there is plastic deformation and fill full two counter sinks in the two ends of riveting parts, counter sink can increase the lifting surface area between riveting parts and workpiece, reduce the amount of deformation of riveting parts, make the stress of riveting parts less, riveting parts is made to be not easy cracking, make riveting parts intensity improve and mechanical property is better, improve mechanical property and the operational safety of the workpiece after riveted joint.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the enlarged view of A in Fig. 1.
Wherein, the 1, first workpiece; 2, second workpiece; 3, riveting parts; 301, spacer sleeve.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in more detail.
Shown in Fig. 1, Fig. 2, the riveted structure of the spacer sleeve of the utility model on turbosupercharger nozzle ring capable of changing cross sections, it comprises one first workpiece 1, second workpiece 2 and a riveting parts 3.
The first described workpiece 1 is provided with one first through hole.
Described second workpiece 2 is provided with second through hole coaxial with the first through hole.
Described riveting parts 3 wears and riveting is fixed in the first through hole and the second through hole, described riveting parts 3 is nested with and is fixed with a spacer sleeve 301, spacer sleeve 301 is arranged between the first workpiece 1 and second workpiece 2, and the two ends of spacer sleeve 301 offset with the two mutually close surfaces of the first workpiece 1 and second workpiece 2 respectively.
The first described through hole and the second through hole include a cylindrical hole and a counter sink, two counter sinks be separately positioned on the first workpiece 1 and second workpiece 2 away from two on the surface, the hole wall of two cylindrical holes is cylindrical wall 4, the hole wall of two counter sinks includes the first cone-shaped wall 5 and the second cone-shaped wall 6 expanded outwardly, one end of two the first cone-shaped walls 5 is connected with one end of two cylindrical walls 4 respectively, the other end of two the first cone-shaped walls 5 is connected with one end of two the second cone-shaped walls 6 respectively, the other end of two the second conical 6 walls respectively with the first workpiece 1 and second workpiece 2 away from two surfaces be connected, the other end of two cylindrical walls 4 is connected with the two mutually close surfaces of the first workpiece 1 and second workpiece 2 respectively, first cone-shaped wall 5 and the second cone-shaped wall 6 diameter that all passes through increases gradually, that is the first cone-shaped wall 5 all increases from its one end gradually to the other end diameter, second cone-shaped wall 6 all increases from its one end gradually to the other end diameter, the two ends difference riveting of riveting parts 3 is in two counter sinks, the two ends of riveting parts 3 are riveted on after in counter sink, the two ends of riveting parts 3 produce plastic deformation and fill full counter sink, after the two ends of riveting parts 3 are out of shape and the area of contact of inwall of counter sink larger.
The angle of the axis of the first cone-shaped wall 5 and the first through hole is 15 degree, and the angle of the axis of the second cone-shaped wall 6 and the first through hole is 45 degree.
Riveted structure of the present utility model can be applied on the turbocharger variable nozzle ring member of variable automobile cross section, in this nozzle ring assembly operationally, high in working environment, low temperature is also deposited, and high-frequency vibrations must be born, so Placement between its all parts and important, spacer sleeve in existing nozzle ring assembly is substantially all connect with the form of dissolution type welding, high temperature during welding can produce the mechanical property of parts itself and change, thus the phenomenon making nozzle ring assembly operationally have soldering point to rupture, and adopt the utility model riveted structure to connect the spacer sleeve in nozzle ring assembly, the form that the spacer sleeve in nozzle ring assembly can be made to roll riveted joint by cold conditions connects, after all parts is connected, the mechanical property of parts itself can not be made to produce change, more avoid the situation of soldering point fracture.
Below only apply preferably example with regard to the utility model and made explanation, but can not be interpreted as it is limitations on claims, structure of the present utility model can have other to change, and is not limited to said structure.In a word, all various changes done in the protection domain of independent claims of the present utility model are all in protection domain of the present utility model.
Claims (2)
1. a riveted structure for the spacer sleeve on turbosupercharger nozzle ring capable of changing cross sections, it comprises:
One first workpiece, the first described workpiece is provided with one first through hole;
One second workpiece, described second workpiece is provided with second through hole coaxial with the first through hole; And
One riveting parts, described riveting parts wears and riveting is fixed in the first through hole and the second through hole, described riveting parts is nested with and is fixed with a spacer sleeve, spacer sleeve is arranged between the first workpiece and second workpiece, and the two ends of spacer sleeve offset with the two mutually close surfaces of the first workpiece and second workpiece respectively;
It is characterized in that:
The first described through hole and the second through hole include a cylindrical hole and a counter sink, two counter sinks be separately positioned on the first workpiece and second workpiece away from two on the surface, the hole wall of two cylindrical holes is cylindrical wall, the hole wall of two counter sinks includes the first cone-shaped wall and the second cone-shaped wall that expand outwardly, one end of two the first cone-shaped walls is connected with one end of two cylindrical walls respectively, the other end of two the first cone-shaped walls is connected with one end of two the second cone-shaped walls respectively, the other end of two the second cone-shaped walls respectively with the first workpiece and second workpiece away from two surfaces be connected, first cone-shaped wall and the second cone-shaped wall diameter that all passes through increases gradually, the two ends difference riveting of riveting parts is in two counter sinks.
2. the riveted structure of the spacer sleeve on turbosupercharger nozzle ring capable of changing cross sections according to claim 1, it is characterized in that: the angle of the axis of the first cone-shaped wall and the first through hole is 15 degree, the angle of the axis of the second cone-shaped wall and the first through hole is 45 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420529192.0U CN204113353U (en) | 2014-09-16 | 2014-09-16 | The riveted structure of the spacer sleeve on turbosupercharger nozzle ring capable of changing cross sections |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420529192.0U CN204113353U (en) | 2014-09-16 | 2014-09-16 | The riveted structure of the spacer sleeve on turbosupercharger nozzle ring capable of changing cross sections |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204113353U true CN204113353U (en) | 2015-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420529192.0U Expired - Fee Related CN204113353U (en) | 2014-09-16 | 2014-09-16 | The riveted structure of the spacer sleeve on turbosupercharger nozzle ring capable of changing cross sections |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204113353U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104295326A (en) * | 2014-09-16 | 2015-01-21 | 萍乡市德博科技发展有限公司 | Rivet structure for spacer sleeve on cross-section-variable nozzle ring of turbocharger |
-
2014
- 2014-09-16 CN CN201420529192.0U patent/CN204113353U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104295326A (en) * | 2014-09-16 | 2015-01-21 | 萍乡市德博科技发展有限公司 | Rivet structure for spacer sleeve on cross-section-variable nozzle ring of turbocharger |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: PINGXIANG DEBO TECHNOLOGY CO., LTD. Free format text: FORMER NAME: BODE TECHNOLOGY DEVELOPMENT CO., LTD.;PINGXIANG CITY |
|
| CP03 | Change of name, title or address |
Address after: 337000 North Zone, Pingxiang Development Zone, Jiangxi, China Patentee after: PINGXIANG DEBO TECHNOLOGY DEVELOPMENT CO., LTD. Address before: 337000 No. 6 Zheng He road, North Zone, Pingxiang Economic Development Zone, Jiangxi, China Patentee before: Pingxiang Debo Technology Development Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150121 Termination date: 20180916 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |