CN206268452U - Seal structure of turbocharger - Google Patents
Seal structure of turbocharger Download PDFInfo
- Publication number
- CN206268452U CN206268452U CN201621401223.XU CN201621401223U CN206268452U CN 206268452 U CN206268452 U CN 206268452U CN 201621401223 U CN201621401223 U CN 201621401223U CN 206268452 U CN206268452 U CN 206268452U
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- labyrinth
- wheel shaft
- interior
- middle casing
- swing rod
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Abstract
A kind of seal structure of turbocharger, including：The closed middle casing of surrounding, horizontally rotate be installed in middle casing turbine wheel shaft, positioned at middle casing outside and be installed on the turbine of worm-wheel shaft head end, outer labyrinth, interior labyrinth, the tapered sleeve being horizontally placed in middle casing, along the spaced N number of open slot of tapered sleeve circumferencial direction and N number of swing rod.Because outer labyrinth is engaged with interior labyrinth, realize the sealing structure of primary, when turbocharger operation, rod-swinging driving device drives swing rod with bearing pin I for the center of circle deflects, so that briquetting is pressed in interior labyrinth during rotation, it is achieved thereby that interior labyrinth keeps impaction state with outer labyrinth, gap between outer labyrinth and interior labyrinth reduces, so as to can be effectively improved when the sealing property of labyrinth seal structure is with turbocharger operation, not only prevent machine oil from leaking, the entrance of external dust can be prevented simultaneously, extend the service life of turbocharger.
Description
Technical field
The utility model is related to field of turbochargers, and in particular to a kind of seal structure of turbocharger.
Background technology
With turbocharger increasingly popularize on internal combustion engine, to improve the power and moment of torsion of internal combustion engine, because
This sealing property to turbocharger proposes requirement higher, therefore the rotating speed of worm-wheel shaft is very high, if sealing is bad, can
Oil leakage can be made, so that the life-span of turbocharger is influenceed, while the ash in the bad worm wheel pressure booster extraneous air of sealing
Dirt particle can also enter inside booster, damage the parts of inner high speed operating.
The content of the invention
The utility model is in order to overcome the shortcomings of above technology, there is provided a kind of turbocharging for effectively improving sealing property
Device sealing structure.
The utility model overcomes the technical scheme that its technical problem is used to be：
A kind of seal structure of turbocharger, including：The closed middle casing of surrounding, horizontally rotate and be installed on middle casing
Interior turbine wheel shaft, positioned at middle casing outside and it is installed on the turbine of worm-wheel shaft head end, outer labyrinth, interior labyrinth, is horizontally placed on
Tapered sleeve in middle casing, along the spaced N number of open slot of tapered sleeve circumferencial direction and N number of swing rod, N is more than or equal to 2
Natural number, the worm-wheel shaft level is plugged in tapered sleeve, and the outer ring in the outer labyrinth is connected with middle casing, its outer face with
The inner side end of turbine is in contact, and the endoporus in the interior labyrinth is plugged on turbine wheel shaft, and the annular boss in the interior labyrinth is fastened
In the corresponding annular groove in outer labyrinth, grease layer, the middle part of swing rod are filled with the annular groove in the outer labyrinth
It is hinged by bearing pin I and is installed in corresponding open slot, the head end of the swing rod is hinged by pin shaft II and is provided with briquetting, described
Rod-swinging driving device is provided with turbine wheel shaft, when turbine wheel shaft is rotated, the rod-swinging driving device drives swing rod to deflect simultaneously
Briquetting is set to be pressed on interior labyrinth.
Above-mentioned rod-swinging driving device include be arranged on tapered sleeve annular groove, along the circumferential direction uniform intervals be arranged at annular
N number of steel ball in groove and some springs being connected with each steel ball, the spring are plugged in the spring groove on turbine wheel shaft, institute
The tail end for stating spring is fixed on turbine wheel shaft, and when turbine wheel shaft remains static, the outboard end of Spring driving steel ball is pressed against
The bottom of the tail end of swing rod.
In order to prevent labyrinth in crushing, also including being installed on the rubber blanket of briquetting head end.
The beneficial effects of the utility model are：Because outer labyrinth is engaged with interior labyrinth, the sealing structure of primary is realized,
When turbocharger operation, rod-swinging driving device drives swing rod with bearing pin I for the center of circle deflects, so that briquetting is being rotated
During be pressed in interior labyrinth, because briquetting and swing rod are to be hinged installation by pin shaft II, thus can realize briquetting with
Interior labyrinth is plane contact when contacting, and the position of briquetting can be adapted to, it is achieved thereby that interior labyrinth keeps pressing with outer labyrinth
Tight state, the gap between outer labyrinth and interior labyrinth reduces, so that the sealing property of labyrinth seal structure is with turbocharger
Can be effectively improved during work, not only prevent machine oil from leaking, while the entrance of external dust can be prevented, extend turbocharging
The service life of device.
Brief description of the drawings
Fig. 1 is cross-sectional view of the present utility model；
Fig. 2 is the A mplifying structure schematic diagrams in Fig. 1；
Fig. 3 is tapered sleeve side structure schematic view of the present utility model；
In figure, 1. 6. swing rod of labyrinth, 7. bearing pin I 8. is bored in the outer labyrinth 5. of 2. turbine wheel shaft of turbine, 3. middle casing 4.
Cover the spring of 9. briquetting, 10. pin shaft II, 11. rubber blanket, 12. open slot, 13. annular groove, 14. steel ball, 15. spring groove 16..
Specific embodiment
Below in conjunction with the accompanying drawings 1, accompanying drawing 2, accompanying drawing 3 are described further to the utility model.
As shown in Figure 1, a kind of seal structure of turbocharger, including：The closed middle casing 3 of surrounding, horizontally rotate
The turbine wheel shaft 2 that is installed in middle casing 3, positioned at the outside of middle casing 3 and it is installed on the turbine 1 of the head end of worm-wheel shaft 2, outer labyrinth
4th, interior labyrinth 5, be horizontally placed in middle casing 3 tapered sleeve 8, along the spaced N number of open slot 12 of the circumferencial direction of tapered sleeve 8 with
And N number of swing rod 6, N is the natural number more than or equal to 2, and the level of worm-wheel shaft 2 is plugged in tapered sleeve 8, outer ring and the centre in outer labyrinth 4
Housing 3 is connected, and its outer face is in contact with the inner side end of turbine 1, and the endoporus in interior labyrinth 5 is plugged on turbine wheel shaft 2, interior fan
The annular boss in palace 5 is fastened in the corresponding annular groove in outer labyrinth 4, and grease layer is filled with the annular groove in outer labyrinth 4,
The middle part of swing rod 6 is hinged by bearing pin I 7 and is installed in corresponding open slot 12, and the head end of swing rod 6 passes through pin shaft II 10
It is hinged and briquetting 9 is installed, rod-swinging driving device is provided with turbine wheel shaft 2, when turbine wheel shaft 2 is rotated, rod-swinging driving device drives
Swing rod 6 deflects and briquetting 9 is pressed on interior labyrinth 5.Because outer labyrinth 4 is engaged with interior labyrinth 5, primary is realized
Sealing structure, when turbocharger operation, rod-swinging driving device drives swing rod 6 with bearing pin I 7 for the center of circle deflects, so that
Make briquetting 9 that interior labyrinth 5 is pressed in during rotation, because briquetting 9 and swing rod 6 are to be hinged installation by pin shaft II 10,
It is plane contact when therefore can realize that briquetting 9 is contacted with interior labyrinth 5, the position of briquetting 9 can be adapted to, it is achieved thereby that
Interior labyrinth 5 keeps impaction state with outer labyrinth 4, and the gap between outer labyrinth 4 and interior labyrinth 5 reduces, so that labyrinth seal structure
Sealing property with turbocharger operation when can effectively improve, not only prevent machine oil from leaking, while outside can be prevented
The entrance of dust, extends the service life of turbocharger.
As shown in Figure 2, rod-swinging driving device include being arranged at annular groove 13 on tapered sleeve 8, it is along the circumferential direction uniform between
N number of steel ball 14 in annular groove 13 is arranged at and some springs 16 being connected with each steel ball 14, spring 16 are plugged in whirlpool
In spring groove 15 on wheel shaft 2, the tail end of spring 16 is fixed on turbine wheel shaft 2, when turbine wheel shaft 2 remains static, spring
The outboard end of 16 driving steel balls 14 is pressed against the bottom of the tail end of swing rod 6.When turbine wheel shaft 2 rotates at a high speed, steel ball 14 is in annular
In groove 13 during rotation, due to the effect of centrifugal force, its outside lateral movement and extension spring 16, the steel ball 14 of outside lateral movement are squeezed and pushed away
The tail end of driven fork 6, makes swing rod 6 enter horizontal deflection, and swing rod 6, for the center of circle moves in a circle, makes briquetting 9 with interior labyrinth 5 with bearing pin I 7
It is in contact and gradually compresses, so as to realizes the function that swing rod 6 compresses interior labyrinth 5.
Further, also including being installed on the rubber blanket 11 of the head end of briquetting 9.Due to briquetting 9 be rigid member, its hardness compared with
Height, therefore its pressure acted on when on interior labyrinth 5, the crushing of interior labyrinth 5 not only may may be used by briquetting 9 by setting rubber blanket 11
To increase the contact area of briquetting 9 and interior labyrinth 5, while can avoid moving back interior labyrinth 5 using the cushioning effect of rubber blanket 11
Crushing.
Claims (3)
1. a kind of seal structure of turbocharger, it is characterised in that including：The closed middle casing of surrounding（3）, horizontally rotate peace
Loaded on middle casing（3）Interior turbine wheel shaft（2）, positioned at middle casing（3）Outside and it is installed on worm-wheel shaft（2）The turbine of head end
（1）, outer labyrinth（4）, interior labyrinth（5）, be horizontally placed on middle casing（3）Interior tapered sleeve（8）, along tapered sleeve（8）Between circumferencial direction
Every the N number of open slot for setting（12）And N number of swing rod（6）, N is the natural number more than or equal to 2, the worm-wheel shaft（2）Level is inserted
Loaded on tapered sleeve（8）In, the outer labyrinth（4）Outer ring and middle casing（3）It is connected, its outer face and turbine（1）Inner side
End face is in contact, the interior labyrinth（5）Endoporus be plugged in turbine wheel shaft（2）On, the interior labyrinth（5）Annular boss be fastened on
Outer labyrinth（4）In corresponding annular groove, the outer labyrinth（4）Annular groove in be filled with grease layer, swing rod（6）In
Between position pass through bearing pin I（7）It is hinged and is installed on corresponding open slot（12）In, the swing rod（6）Head end pass through pin shaft II
（10）It is hinged and briquetting is installed（9）, the turbine wheel shaft（2）On be provided with rod-swinging driving device, work as turbine wheel shaft（2）During rotation, institute
State rod-swinging driving device and drive swing rod（6）Deflect and make briquetting（9）It is pressed in interior labyrinth（5）On.
2. seal structure of turbocharger according to claim 1, it is characterised in that：The rod-swinging driving device includes setting
It is placed in tapered sleeve（8）On annular groove（13）, along the circumferential direction uniform intervals be arranged at annular groove（13）In N number of steel ball（14）With
And with each steel ball（14）Some springs of connection（16）, the spring（16）It is plugged in turbine wheel shaft（2）On spring groove（15）
It is interior, the spring（16）Tail end be fixed on turbine wheel shaft（2）On, work as turbine wheel shaft（2）When remaining static, spring（16）Drive
Steel ball（14）Outboard end be pressed against swing rod（6）Tail end bottom.
3. seal structure of turbocharger according to claim 1, it is characterised in that：Also include being installed on briquetting（9）Head
The rubber blanket at end（11）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621401223.XU CN206268452U (en) | 2016-12-20 | 2016-12-20 | Seal structure of turbocharger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621401223.XU CN206268452U (en) | 2016-12-20 | 2016-12-20 | Seal structure of turbocharger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206268452U true CN206268452U (en) | 2017-06-20 |
Family
ID=59047381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621401223.XU Active CN206268452U (en) | 2016-12-20 | 2016-12-20 | Seal structure of turbocharger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206268452U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114033501A (en) * | 2021-11-10 | 2022-02-11 | 北京动力机械研究所 | Split type seal structure of runoff turbocharging power generation system |
| CN114033500A (en) * | 2021-11-10 | 2022-02-11 | 北京动力机械研究所 | Rotor sealing structure of self-adaptive radial flow turbocharging system |
-
2016
- 2016-12-20 CN CN201621401223.XU patent/CN206268452U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114033501A (en) * | 2021-11-10 | 2022-02-11 | 北京动力机械研究所 | Split type seal structure of runoff turbocharging power generation system |
| CN114033500A (en) * | 2021-11-10 | 2022-02-11 | 北京动力机械研究所 | Rotor sealing structure of self-adaptive radial flow turbocharging system |
| CN114033500B (en) * | 2021-11-10 | 2024-04-02 | 北京动力机械研究所 | Rotor sealing structure of self-adaptive radial-flow turbocharging system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 001, southeast of 309 National Highway Toll Station, Changle County, Weifang City, Shandong Province, 261011 Patentee after: Shandong Lianxin Power Technology Co.,Ltd. Address before: No. 001, southeast of 309 National Highway Toll Station, Changle County, Weifang City, Shandong Province, 261011 Patentee before: WEIFANG LIANXIN SUPERCHARGER MANUFACTURING Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |