CN201486597U - Nozzle ring for supercharger - Google Patents
Nozzle ring for supercharger Download PDFInfo
- Publication number
- CN201486597U CN201486597U CN2009200428324U CN200920042832U CN201486597U CN 201486597 U CN201486597 U CN 201486597U CN 2009200428324 U CN2009200428324 U CN 2009200428324U CN 200920042832 U CN200920042832 U CN 200920042832U CN 201486597 U CN201486597 U CN 201486597U
- Authority
- CN
- China
- Prior art keywords
- pin
- nozzle ring
- shoulder
- disc
- installation
- 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 nozzle ring for a supercharger, comprising an installation disc, a shifting fork disc, a plurality of shifting forks circumferentially arranged along the inner wall surface of the shifting fork disc, and a plurality of rollers matched with the inner wall surface of the shifting fork disc in a rolling manner and supported by a pin, wherein the end surface of one side of the installation disc is provided with a pin installation hole; the lower part of the pin is placed in the installation hole; the rollers are sheathed at the upper part of the pin; the pin and the installation hole are connected with each other by interference fit; the upper end of the pin is provided with a shoulder protruding outwards along radial direction thereof; the rollers are provided with counter bores; and the shoulder is placed in the counter bores. The shoulder protruding outwards along the radial direction can extend along the whole circumference of the pin. In the nozzle ring, the pin and the rollers do not drop off from the installation disc, thus ensuring the smooth work of installation and maintenance of equipment.
Description
Technical field
The utility model relates to a kind of pressurized machine, especially relates to a kind of nozzle ring that is applied on turbosupercharger, the miniature gas turbine.
Background technique
Turbosupercharger is a kind ofly to make reciprocating engine significantly improve output power under the constant situation of basic structure, improve Economy, alleviate the machinery of exhaust emission, therefore motor adopts turbosupercharger can significantly improve power, reduce exhaust pollution, improve economic performance, and the engine configurations turbosupercharger becomes one of topmost technological development direction of motor; And nozzle ring is a vitals in the pressurized machine, the operating characteristics when its quality and structure directly influence the service behaviour of pressurized machine and installation and maintenance.At present, the nozzle ring that pressurized machine is used, comprise mounting disc, shift fork dish, several shift forks, pin and several rollers that roll and cooperate with described shift fork dish internal face along the circumferential setting of described shift fork dish internal face, it circumferentially is provided with the pin mounting hole in the upper edge, a side end face of described mounting disc, the bottom of described pin places mounting hole and both to be Spielpassung, and described roller housing is contained in the top of pin.The nozzle ring of this structure, because the mounting hole that is provided with on pin and the mounting disc end face is a Spielpassung, thereby pin is easy to come off from this mounting hole in installation and maintenance process, pin comes off from mounting disc simultaneously together with other assembly mounted thereto like this, brings very big trouble for assembling and maintenance work; In addition, because roller only is sleeved on the pin, roller equally also is easy to come off from pin in installation and maintenance process, thereby also is not easy to assembling and maintenance.
The model utility content
The technical problems to be solved in the utility model provides a kind of in installation and maintenance process, and pin and roller can not come off from mounting disc, thereby can guarantee the pressurized machine nozzle ring that everything goes well with your work carries out.
For solving the problems of the technologies described above, a kind of pressurized machine nozzle ring that the utility model adopted, several shift forks that comprise mounting disc, shift fork dish, circumferentially are provided with along described shift fork dish internal face and several rollers that roll and cooperates and support by pin with described shift fork dish internal face, one side end face of described mounting disc is provided with the pin mounting hole, the bottom of described pin places this mounting hole, described roller housing is contained in the top of pin, and described pin is that interference fit is connected with mounting hole; Be provided with in the upper end of described pin along its shoulder of evagination radially, be provided with counterbore on described roller, described shoulder places described counterbore.
After adopting such structure, because pin and mounting hole are the interference fit linkage structure, that is to say that pin compares identical or big slightly with the aperture of mounting hole, pin must be exerted pressure through external force and just can be placed in the mounting hole in assembly process, thereby pin combines with mounting disc reliably, equipment install and maintenance process in can not split away off from mounting disc; Because the upper end of pin has shoulder, counterbore is set on roller again, described shoulder places described counterbore, thereby in installation and maintenance process, roller is stopped by the shoulder on the pin and can't come off from pin.
As a kind of preferred implementation of the present utility model, the shoulder of described radially evagination is stretched along the whole circumferential edge of pin.Adopt such structure, the processing of pin is more easy, and intensity is also bigger, and is more not fragile.
As another kind of preferred implementation of the present utility model, be provided with 0.05～0.2 mm clearance between described roller and the pin.Such structure can guarantee nozzle ring under hot environment, and roller still can rotate neatly around pin.
Description of drawings
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.
Fig. 1 looks schematic representation for the utility model pressurized machine with the master of nozzle ring.
Fig. 2 is along the generalized section of A-A line among Fig. 1.
Fig. 3 is a kind of structural representation of the utility model pressurized machine with pin in the nozzle ring.
Embodiment
Referring to Fig. 1, a kind of pressurized machine nozzle ring shown in 2, comprise mounting disc 1, shift fork dish 2, several shift forks 3 that circumferentially are provided with along described shift fork dish 2 internal faces and several rollers 5 that roll and cooperates and support by pin 4 with described shift fork dish 2 internal faces, roller 5 shown in Figure 1 and pin 4 are three, one side end face of described mounting disc 1 is provided with pin mounting hole 1-1, the bottom of described pin 4 places mounting hole 1-1, described roller 5 is sleeved on the top of pin 4, and the mounting hole 1-1 that is provided with on described pin 4 and mounting disc 1 end face is that interference fit is connected; Be provided with in the upper end of described pin 4 along its shoulder 4-1 of evagination radially, be provided with counterbore 5-1 on described roller 5, described shoulder 4-1 places described counterbore 5-1.
As shown in Figure 2, omitted shift fork 3 and shift fork dish 2 among the figure, the shoulder 4-1 of described radially evagination can stretch along the whole circumferential edge of pin 4.Certainly, shoulder 4-1 also can be as shown in Figure 3 along the radially local evagination of pin 4.For described roller 5 can be rotated flexibly around pin 4, the bottom of shoulder 4-1 of the present utility model and counterbore 5-1 is provided with the gap vertically, and this gap is preferably 0.1～0.3 millimeter.The thickness of described shoulder 4-1 can be slightly larger than the degree of depth of described counterbore 5-1; Be provided with 0.05～0.2 mm clearance between described roller 5 and pin 4, the utility model is preferably 0.15 millimeter.
Nozzle ring of the present utility model is through on probation in turbosupercharger, and pin, roller and mounting disc are connected reliably, and pin and roller do not come off from mounting disc in installing and keeping in repair, and have saved the operating time, has guaranteed carrying out smoothly of work.
Claims (3)
1. pressurized machine nozzle ring, comprise mounting disc (1), shift fork dish (2), several shift forks (3) that circumferentially are provided with along described shift fork dish (2) internal face and several rollers (5) that roll and cooperates and support by pin (4) with described shift fork dish (2) internal face, one side end face of described mounting disc (1) is provided with pin (4) mounting hole (1-1), the bottom of described pin (4) places mounting hole (1-1), described roller (5) is sleeved on the top of pin (4), it is characterized in that: the mounting hole (1-1) that is provided with on described pin (4) and mounting disc (1) end face is connected for interference fit; Be provided with in the upper end of described pin (4) along its shoulder of evagination (4-1) radially, be provided with counterbore (5-1) on described roller (5), described shoulder (4-1) places described counterbore (5-1).
2. pressurized machine nozzle ring according to claim 1 is characterized in that: the shoulder of described radially evagination (4-1) is stretched along the whole circumferential edge of pin (4).
3. pressurized machine nozzle ring according to claim 1 and 2 is characterized in that: be provided with 0.05～0.2 mm clearance between described roller (5) and pin (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200428324U CN201486597U (en) | 2009-06-26 | 2009-06-26 | Nozzle ring for supercharger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200428324U CN201486597U (en) | 2009-06-26 | 2009-06-26 | Nozzle ring for supercharger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201486597U true CN201486597U (en) | 2010-05-26 |
Family
ID=42425479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200428324U Expired - Fee Related CN201486597U (en) | 2009-06-26 | 2009-06-26 | Nozzle ring for supercharger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201486597U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105332742A (en) * | 2015-11-07 | 2016-02-17 | 萍乡德博科技股份有限公司 | Two-way located turbocharger nozzle ring assembly |
-
2009
- 2009-06-26 CN CN2009200428324U patent/CN201486597U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105332742A (en) * | 2015-11-07 | 2016-02-17 | 萍乡德博科技股份有限公司 | Two-way located turbocharger nozzle ring assembly |
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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 |
Granted publication date: 20100526 Termination date: 20150626 |
|
| EXPY | Termination of patent right or utility model |