CN102269019A - Rotor shaft support structure of turbocharger - Google Patents
Rotor shaft support structure of turbocharger Download PDFInfo
- Publication number
- CN102269019A CN102269019A CN2011102497566A CN201110249756A CN102269019A CN 102269019 A CN102269019 A CN 102269019A CN 2011102497566 A CN2011102497566 A CN 2011102497566A CN 201110249756 A CN201110249756 A CN 201110249756A CN 102269019 A CN102269019 A CN 102269019A
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- CN
- China
- Prior art keywords
- rotor shaft
- bearing
- ceramic balls
- supporting structure
- support structure
- 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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- Rolling Contact Bearings (AREA)
- Supercharger (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
The invention provides a rotor shaft support structure of a turbocharger. According to the invention, higher power consumption generated in the operation process of a rotor shaft can be reduced so that bearings can reach an ideal working state more rapidly, furthermore, the product cost is reduced; and the product competitiveness is increased. The structure comprises the rotor shaft and an intermediate body, wherein the rotor shaft is fixed on the intermediate body through two bearings having a certain distance. The rotor shaft support structure is characterized in that one of the two bearings is a floating bearing and the other bearing is a ceramic ball bearing.
Description
Technical field
The present invention relates to the technical field of turbocharger arrangement, be specially a kind of rotor shaft supporting structure of turbosupercharger.
Background technique
The rotor shaft of common turbosupercharger is to be supported on the intermediate by floating bearing, because floating bearing belongs to common hydraulic bearing, certain clearance is all arranged inside and outside it, and in the gap, be full of lubricant oil with pressure, because the drag effect of lubricant oil, rotor shaft can produce a large amount of power consumpitons in operation process, simultaneously, because floating bearing will drive bearing operation by the frictional force of lubricant oil, temperature to lubricant oil, the quality of pressure and lubricant oil has higher requirement, and because floating bearing will drive bearing operation by the frictional force of lubricant oil, the rotating speed of the bearing rotating speed of axle wants slow, can not reach desirable working state immediately, in operation process, can produce a large amount of power consumpitons in order to reduce rotor shaft, the bearing of the rotor shaft of turbosupercharger adopts the ceramic balls bearing, in operation process, can produce a large amount of power consumpitons though reduce rotor shaft like this, and make bearing reach desirable working state quickly, but the cost height of ceramic balls bearing, make the cost of product improve greatly after adopting the ceramic balls bearing, make product lose competitive ability.
Summary of the invention
At the problems referred to above, the invention provides a kind of rotor shaft supporting structure of turbosupercharger, can reduce rotor shaft and in operation process, can produce a large amount of power consumpitons, make bearing reach desirable working state quickly, and reduced the cost of product, improved competitiveness of product.
Its technological scheme is such: a kind of rotor shaft supporting structure of turbosupercharger, it comprises rotor shaft, intermediate, two bearing fixing of described rotor shaft by certain distance is arranged are on described intermediate, it is characterized in that: one is floating bearing in described two bearings, and another is the ceramic balls bearing.
It is further characterized in that: described intermediate is provided with filler opening; Described ceramic balls bearing face is provided with thrust plate, and described ceramic balls bearing other end is provided with thrust bearing; Be provided with the oil sealing cover in the described filler opening, described oil sealing cover connects described floating bearing, described ceramic balls bearing and described thrust bearing.
In the said structure of the present invention, rotor shaft is by having a floating bearing and a ceramic balls bearing of certain distance, because the friction factor of ceramic balls bearing self is lower than floating bearing, rotor shaft can be reduced and in operation process, a large amount of power consumpitons can be produced, make bearing reach desirable working state quickly, the cost of floating bearing is lower than ceramic balls bearing, thereby has reduced the cost of product, has improved competitiveness of product.
Description of drawings
Fig. 1 is the rotor shaft supporting structure schematic representation of turbosupercharger of the present invention.
Embodiment
See Fig. 2, a kind of rotor shaft supporting structure of turbosupercharger, it comprises rotor shaft 3, intermediate 2, rotor shaft 3 is fixed on the intermediate 2 by a floating bearing 1 and a ceramic balls bearing 4, between floating bearing 1 and a ceramic balls bearing 4 certain distance is arranged, ceramic balls bearing 4 one end faces are provided with thrust plate 5, the other end is provided with thrust bearing 8, prevent the axial motion of ceramic balls bearing 4, intermediate 2 is provided with filler opening 9, be provided with oil sealing cover 6 in the filler opening 9, oil sealing cover 6 is by oil duct 7-1,7-2,7-3 connects floating bearing 1 respectively, ceramic balls bearing 4, thrust bearing 8.
Claims (4)
1. the rotor shaft supporting structure of a turbosupercharger, it comprises rotor shaft, intermediate, two bearing fixing of described rotor shaft by certain distance is arranged is characterized in that on described intermediate: one is floating bearing in described two bearings, and another is the ceramic balls bearing.
2. the rotor shaft supporting structure of a kind of turbosupercharger according to claim 1, it is characterized in that: described intermediate is provided with filler opening.
3. the rotor shaft supporting structure of a kind of turbosupercharger according to claim 2, it is characterized in that: described ceramic balls bearing face is provided with thrust plate, and described ceramic balls bearing other end is provided with thrust bearing.
4. the rotor shaft supporting structure of a kind of turbosupercharger according to claim 3 is characterized in that: be provided with the oil sealing cover in the described filler opening, the described connection of oil sealing cover described floating bearing, described ceramic balls bearing and described thrust bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102497566A CN102269019A (en) | 2011-08-29 | 2011-08-29 | Rotor shaft support structure of turbocharger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102497566A CN102269019A (en) | 2011-08-29 | 2011-08-29 | Rotor shaft support structure of turbocharger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102269019A true CN102269019A (en) | 2011-12-07 |
Family
ID=45051444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102497566A Pending CN102269019A (en) | 2011-08-29 | 2011-08-29 | Rotor shaft support structure of turbocharger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102269019A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953398A (en) * | 2014-05-15 | 2014-07-30 | 湖南天雁机械有限责任公司 | Exhaust gas complementary energy utilization device and system of supercharged engine |
| CN107387174A (en) * | 2017-07-25 | 2017-11-24 | 湖南天雁机械有限责任公司 | Turbocharger with angular contact ceramic ball bearing |
-
2011
- 2011-08-29 CN CN2011102497566A patent/CN102269019A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953398A (en) * | 2014-05-15 | 2014-07-30 | 湖南天雁机械有限责任公司 | Exhaust gas complementary energy utilization device and system of supercharged engine |
| CN107387174A (en) * | 2017-07-25 | 2017-11-24 | 湖南天雁机械有限责任公司 | Turbocharger with angular contact ceramic ball bearing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20111207 |