CN206267881U - Seal structure of turbocharger - Google Patents
Seal structure of turbocharger Download PDFInfo
- Publication number
- CN206267881U CN206267881U CN201621401221.0U CN201621401221U CN206267881U CN 206267881 U CN206267881 U CN 206267881U CN 201621401221 U CN201621401221 U CN 201621401221U CN 206267881 U CN206267881 U CN 206267881U
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- CN
- China
- Prior art keywords
- labyrinth
- wheel shaft
- push rod
- interior
- middle casing
- 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.)
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- Supercharger (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
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 set being horizontally placed in middle casing and circumferentially spaced setting and level is plugged in N number of push rod in set.Because outer labyrinth is engaged with interior labyrinth, realize the sealing structure of primary, when turbocharger operation, the outside Slideslip of push rod drive device driving push rod, its head end is set to be pressed in interior labyrinth, such that it is able to make interior labyrinth keep 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, the service life of turbocharger is extended.
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
Set and circumferentially spaced setting and level in middle casing are plugged in the N number of push rod in set, and N is more than or equal to 2
Natural number, the worm-wheel shaft level is plugged in set, and the outer ring in the outer labyrinth is connected with middle casing, its outer face and whirlpool
The inner side end of wheel 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 on
In the corresponding annular groove in outer labyrinth, grease layer is filled with the annular groove in the outer labyrinth, is set on the turbine wheel shaft
There is push rod drive device, when turbine wheel shaft is rotated, the outside Slideslip of push rod drive device driving push rod compresses its head end
In on interior labyrinth.
Above-mentioned push rod drive device include be arranged at put annular groove, along the circumferential direction uniform intervals be arranged at annular groove
In N number of steel ball and some springs for being connected with each steel ball, the spring is plugged in the spring groove on turbine wheel shaft, described
The tail end of spring is fixed on turbine wheel shaft, and the tail end of the push rod is provided with bulb, when turbine wheel shaft remains static, spring
The outboard end of driving steel ball is pressed against the medial extremity of corresponding bulb.
In order to prevent labyrinth in crushing, also including being installed on the rubber blanket of push rod 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, the outside Slideslip of push rod drive device driving push rod makes its head end be pressed in interior labyrinth, so that can
So that interior labyrinth keeps impaction state with outer labyrinth, the gap between outer labyrinth and interior labyrinth 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.
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；
In figure, the 1. rubber blanket 8. of 6. push rod of labyrinth 7. in the outer labyrinth 5. of 2. turbine wheel shaft of turbine, 3. middle casing 4.
Cover the steel ball of 9. bulb, 10. spring groove, 11. spring, 12. annular groove 13..
Specific embodiment
Below in conjunction with the accompanying drawings 1, accompanying drawing 2 is 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, the set 8 that is horizontally placed in middle casing 3 and circumferentially spaced setting and level is plugged in set 8
N number of push rod 6, N is the natural number more than or equal to 2, and the level of worm-wheel shaft 2 is plugged in set 8, outer ring and the middle casing 3 in outer labyrinth 4
It is connected, its outer face is in contact with the inner side end of turbine 1, the endoporus in interior labyrinth 5 is plugged on turbine wheel shaft 2, interior labyrinth 5
Annular boss is fastened in the corresponding annular groove in outer labyrinth 4, and grease layer, turbine are filled with the annular groove in outer labyrinth 4
Push rod drive device is provided with axle 2, when turbine wheel shaft 2 is rotated, the outside Slideslip of push rod drive device driving push rod 6 makes it
Head end is pressed on interior labyrinth 5.Because outer labyrinth 4 is engaged with interior labyrinth 5, the sealing structure of primary is realized, when turbine increases
When depressor works, the outside Slideslip of push rod drive device driving push rod 6 makes its head end be pressed in interior labyrinth 5, such that it is able in making
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
Can be effectively improved when sealing property is with turbocharger operation, not only prevent machine oil from leaking, while outside ash can be prevented
The entrance of dirt, extends the service life of turbocharger.
As shown in Figure 2, push rod drive device can be following structure, and it includes the annular groove 12, edge being arranged on set 8
N number of steel ball 13 that circumferencial direction uniform intervals are arranged in annular groove 12 and some springs 11 being connected with each steel ball 13,
Spring 11 is plugged in the spring groove 10 on turbine wheel shaft 2, and the tail end of spring 11 is fixed on turbine wheel shaft 2, and the tail end of push rod 6 is set
There is bulb 9, when turbine wheel shaft 2 remains static, spring 11 drives the outboard end of steel ball 13 to be pressed against the interior of corresponding bulb 9
Side.When turbine wheel shaft 2 rotates at a high speed, in annular groove 12 during rotation, due to the effect of centrifugal force, it is transported steel ball 13 laterally
Dynamic and extension spring 11, the squeeze bulb 9 of steel ball 13 of outside lateral movement moves the inside direction of labyrinth 5 of the level of push rod 6, so that
Realize the function that push rod 6 compresses interior labyrinth 5.
Further, also including being installed on the rubber blanket 7 of the head end of push rod 6.Because the head end of push rod 6 is more sharp, therefore
Its pressure is acted on when on interior labyrinth 5, and the crushing of interior labyrinth 5 may can not only be increased by setting rubber blanket 7 and pushed away by push rod 6
The contact area in bar 6 and interior labyrinth 5, while can avoid moving back the crushing in interior labyrinth 5 using the cushioning effect of rubber blanket 7.
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 set（8）And circumferentially spaced setting
And level is plugged in set（8）In N number of push rod（6）, N is the natural number more than or equal to 2, the worm-wheel shaft（2）Level is plugged in
Set（8）In, the outer labyrinth（4）Outer ring and middle casing（3）It is connected, its outer face and turbine（1）Inner side end phase
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, the turbine wheel shaft（2）On set
Push rod drive device is equipped with, works as turbine wheel shaft（2）During rotation, the push rod drive device driving push rod（6）Outside Slideslip, makes it
Head end is pressed in interior labyrinth（5）On.
2. seal structure of turbocharger according to claim 1, it is characterised in that：The push rod drive device includes setting
It is placed in set（8）On annular groove（12）, along the circumferential direction uniform intervals be arranged at annular groove（12）In N number of steel ball（13）And
With each steel ball（13）Some springs of connection（11）, the spring（11）It is plugged in turbine wheel shaft（2）On spring groove（10）It is interior,
The spring（11）Tail end be fixed on turbine wheel shaft（2）On, the push rod（6）Tail end be provided with bulb（9）, work as turbine wheel shaft
（2）When remaining static, spring（11）Drive steel ball（13）Outboard end be pressed against corresponding bulb（9）Medial extremity.
3. seal structure of turbocharger according to claim 1, it is characterised in that：Also include being installed on push rod（6）Head
The rubber blanket at end（7）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621401221.0U CN206267881U (en) | 2016-12-20 | 2016-12-20 | Seal structure of turbocharger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621401221.0U CN206267881U (en) | 2016-12-20 | 2016-12-20 | Seal structure of turbocharger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206267881U true CN206267881U (en) | 2017-06-20 |
Family
ID=59047015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621401221.0U Active CN206267881U (en) | 2016-12-20 | 2016-12-20 | Seal structure of turbocharger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206267881U (en) |
-
2016
- 2016-12-20 CN CN201621401221.0U patent/CN206267881U/en active Active
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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 | ||
| 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. |