CN202250261U - Rotor shaft supporting structure of turbocharger - Google Patents
Rotor shaft supporting structure of turbocharger Download PDFInfo
- Publication number
- CN202250261U CN202250261U CN2011203174257U CN201120317425U CN202250261U CN 202250261 U CN202250261 U CN 202250261U CN 2011203174257 U CN2011203174257 U CN 2011203174257U CN 201120317425 U CN201120317425 U CN 201120317425U CN 202250261 U CN202250261 U CN 202250261U
- Authority
- CN
- China
- Prior art keywords
- rotor shaft
- bearing
- supporting structure
- shaft supporting
- ceramic balls
- 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
Links
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- Supercharger (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The utility model provides a rotor shaft supporting structure of a turbocharger, which is used for reducing the massive power consumption generated during the operation of a rotor shaft to enable bearings to be in an ideal working state within a shorter time, reduce the cost of the product, and further improve the competitiveness of the product. The rotor shaft supporting structure includes a rotor shaft and an intermediate, wherein the rotor shaft is fixed on the intermediate through two bearings arranged at an interval. The rotor shaft supporting structure is characterized in that one of the two bearings is a non-locating bearing, and the other bearing is a ceramic ball bearing.
Description
Technical field
The utility model relates to the technical field of turbocharger arrangement, is 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 through floating bearing, because floating bearing belongs to common hydraulic bearing, certain clearance is arranged all 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 through the frictional force of lubricant oil; Quality to temperature, pressure and the lubricant oil of lubricant oil has higher requirement, and because floating bearing will drive bearing operation through 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 of ceramic balls bearing is high, makes the cost of product improve greatly behind the employing ceramic balls bearing, makes product lose competitive ability.
Summary of the invention
To the problems referred to above; The utility model 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, makes 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 said rotor shaft through certain distance is arranged are on said intermediate; It is characterized in that: one is floating bearing in said two bearings, and another is the ceramic balls bearing.
It is further characterized in that: said intermediate is provided with filler opening; Said ceramic balls bearing face is provided with thrust plate, and said ceramic balls bearing other end is provided with thrust bearing; Be provided with the oil sealing cover in the said filler opening, said oil sealing cover connects said floating bearing, said ceramic balls bearing and said thrust bearing.
In the said structure of the utility model; Rotor shaft, can reduce rotor shaft and in operation process, can produce a large amount of power consumpitons because the friction factor of ceramic balls bearing self is lower than floating bearing through a floating bearing and a ceramic balls bearing of certain distance are arranged; 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 the utility model turbosupercharger.
Embodiment
See Fig. 1, 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 through 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, and 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, is provided with oil sealing 6 in the filler opening 9, and oil sealing 6 connects floating bearing 1, ceramic balls bearing 4, thrust bearing 8 respectively through oil duct 7-1,7-2,7-3.
Claims (4)
1. the rotor shaft supporting structure of a turbosupercharger; It comprises rotor shaft, intermediate; Two bearing fixing of said rotor shaft through certain distance is arranged is characterized in that on said intermediate: one is floating bearing in said 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: said 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: said ceramic balls bearing face is provided with thrust plate, and said 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 said filler opening, the said connection of oil sealing cover said floating bearing, said ceramic balls bearing and said thrust bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203174257U CN202250261U (en) | 2011-08-29 | 2011-08-29 | Rotor shaft supporting structure of turbocharger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203174257U CN202250261U (en) | 2011-08-29 | 2011-08-29 | Rotor shaft supporting structure of turbocharger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202250261U true CN202250261U (en) | 2012-05-30 |
Family
ID=46111519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203174257U Expired - Fee Related CN202250261U (en) | 2011-08-29 | 2011-08-29 | Rotor shaft supporting structure of turbocharger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202250261U (en) |
-
2011
- 2011-08-29 CN CN2011203174257U patent/CN202250261U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20120829 |