CN204082231U - Separated type high speed scroll turbocharger bearing body - Google Patents
Separated type high speed scroll turbocharger bearing body Download PDFInfo
- Publication number
- CN204082231U CN204082231U CN201420338740.1U CN201420338740U CN204082231U CN 204082231 U CN204082231 U CN 204082231U CN 201420338740 U CN201420338740 U CN 201420338740U CN 204082231 U CN204082231 U CN 204082231U
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- contact ball
- angular contact
- rotor shaft
- turbine rotor
- spacing collar
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Abstract
The utility model relates to vehicle body fittings technical field, especially a kind of separated type high speed scroll turbocharger bearing body.It comprises turbine rotor shaft, angular contact ball bearing, outer separator, inner spacing collar and headgear, angular contact ball bearing has two, be enclosed within the two ends of turbine rotor shaft respectively, outer separator and inner spacing collar are installed between two angular contact ball bearings, and headgear is arranged on the top of turbine rotor shaft.The separate type of design corner contact ball bearing, outer separator, inner spacing collar and headgear, is combined into one by turbine rotor shaft, and part process simplifies, be conducive to angular contact ball bearing and adopt poor processability and the excellent stupalith of mechanical property, heating value is few, and temperature rise is low, and stability is high.Double inclined surface structure, can increase cooling space, and coolant channels is arranged convenient.Outer separator and inner spacing collar, between two angular contact ball bearings, are specifically matched, and can improve velocity limit, the life-saving limit, and assembling is simple, and processing cost reduces, and maintenance is replaced convenient.
Description
Technical field
The utility model relates to vehicle body fittings technical field, especially a kind of separated type high speed scroll turbocharger bearing body.
Background technique
On automobile, turbosupercharger comprises compressor casing, turbine case, bearing support, stuffing box gland, turbine, turbine rotor shaft and pressure impeller composition.Reach high rotating speed and the long lifetime crucial performance being bearing support, the structure of bearing support and material are directly connected to the performance and reliability of pressurized machine work.
At present, turbo-charger bearing is mainly divided into two classes, one class is floating shaft bushing bearing, namely the annulus on axle is enclosed within, annulus and axle and have gap between annulus and bearing support, form double-layer oil film, annulus floats between turbine rotor shaft and bearing support, during pressurized machine work, annulus also does high speed rotating.In floating bearing is general, lamellar spacing is about 0.05mm, and outer lamellar spacing is approximately 0.1mm.Bearing wall thickness is about 3.0-4.5mm, and manufacture with Tin-lead bronze alloy, bearing surface plates the antifriction metal (AFM) layer that a layer thickness is about 0.005-0.008mm.The shortcoming of floating shaft bushing bearing: it is large that turbine shaft starts running resistance, engine oil pressure and quality requirements high, can not stablize the Dynamic controlling of turbine shaft; Another kind of is then integrated type ball bearing, i.e. double row angular contact ceramic ball combined bearing, cover material Bearing Steel in the combination sleeve of bearing, combination, rolling element silicon nitride ball, and during pressurized machine work, bearing is in the intercropping high speed rotating of turbine rotor shaft and bearing support.Integrated type ball bearing installs ball bearing on turbine rotor shaft, replaces the position of floating bearing in turbosupercharger.The advantage of ball bearing is compared with floating bearing: frictional force is little, and the effect of turbo lag is low, can dynamically controlling effectively to turbine shaft, and engine oil pressure and quality can reduce a little.Its shortcoming be exactly the life-span not as good as floating bearing, general 7 ten thousand to 8 ten thousand kilometers of lifetime limitations of arriving, and manufacturability is poor, processing cost is high, maintenance difficult.
Model utility content
Large in order to overcome existing turbo-charger bearing running resistance, Dynamic controlling can not be stablized, and the life-span is short, and cost is high, the deficiency of maintenance difficult, and the utility model provides a kind of separated type high speed scroll turbocharger bearing body.
The utility model solves the technological scheme that its technical problem adopts: a kind of separated type high speed scroll turbocharger bearing body, comprise turbine rotor shaft, angular contact ball bearing, outer separator, inner spacing collar and headgear, angular contact ball bearing has two, be enclosed within the two ends of turbine rotor shaft respectively, outer separator and inner spacing collar are installed between two angular contact ball bearings, and headgear is arranged on the top of turbine rotor shaft.
According to another embodiment of the present utility model, comprise outer separator further and be provided with oil outlet and oil duct slope, be embedded in turbine housing hole, two ends withstand on the outer ring of two angular contact ball bearings respectively.
According to another embodiment of the present utility model, the two ends comprising the inner spacing collar fitted on turbine rotor shaft further withstand on the inner ring of two angular contact ball bearings respectively.
According to another embodiment of the present utility model, comprise outer separator further short compared with inner spacing collar.
According to another embodiment of the present utility model, comprising the outer ring of angular contact ball bearing, inner ring and ball is further all ceramic material, and retainer is PEEK material.
According to another embodiment of the present utility model, the outer ring and the inner ring that comprise angular contact ball bearing are further double inclined surface structure.
According to another embodiment of the present utility model, comprise headgear further and be provided with seal groove.
The beneficial effects of the utility model are, the separate type of design corner contact ball bearing, outer separator, inner spacing collar and headgear, be combined into one by turbine rotor shaft, part process simplifies, and is conducive to angular contact ball bearing and adopts poor processability and the excellent stupalith of mechanical property, during use, heating value is few, and temperature rise is low, and stability is high, there is good anti-contact fatigue characteristic and wear-resisting property, long service life.Angular contact ball bearing adopts double inclined surface structure, can increase cooling space, and coolant channels is arranged convenient, effectively reduces the temperature rise of bearing support.Outer separator and inner spacing collar are between two angular contact ball bearings, in the axial direction, correspondence holds out against in the outer ring of angular contact ball bearing and inner ring position respectively, guarantee bearing shaft to working gap, diametrically, coordinate with turbine housing hole and turbine rotor shaft respectively, prevented pine generation circular runout or tension from occurring that radial working gap is too small, and by outer separator and inner spacing collar are set length difference to regulate play, and then improve the velocity limit of angular contact ball bearing, extend lifetime limitation, assembling is simple, processing cost reduces, and maintenance is replaced convenient.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is structural representation of the present utility model.
1. turbine rotor shafts, 2. angular contact ball bearing, 3. outer separator in figure, 31. oil outlets, 32. oil duct slope, 4. inner spacing collar, 5. headgears, 51. seal grooves.
Embodiment
If Fig. 1 is structural representation of the present utility model, a kind of separated type high speed scroll turbocharger bearing body, comprise turbine rotor shaft 1, angular contact ball bearing 2, outer separator 3, inner spacing collar 4 and headgear 5, angular contact ball bearing 2 has two, be enclosed within the two ends of turbine rotor shaft 1 respectively, outer separator 3 and inner spacing collar 4 are installed between two angular contact ball bearings 2, and headgear 5 is arranged on the top of turbine rotor shaft 1.Outer separator 3 is provided with oil outlet 31 and oil duct slope 32, and be embedded in turbine housing hole, two ends withstand on the outer ring of two angular contact ball bearings 2 respectively.The two ends fitting over the inner spacing collar 4 on turbine rotor shaft 1 withstand on the inner ring of two angular contact ball bearings 2 respectively.Outer separator 3 is short compared with inner spacing collar 4.The outer ring of angular contact ball bearing 2, inner ring and ball are all ceramic materials, and retainer is PEEK material.Outer ring and the inner ring of angular contact ball bearing 2 are double inclined surface structure.Headgear 5 is provided with seal groove 51.
The pedestal body structure of design corner contact ball bearing 2, outer separator 3, inner spacing collar 4 and headgear 5, is combined into one by turbine rotor shaft 1.Existing solid box body structure is complicated, due to the restriction in processing, the material of the jacket and inner sleeve of bearing is only confined to steel, and the design of part relative overall formula of pedestal body of the present utility model is simple, is conducive to angular contact ball bearing 2 and adopts poor processability and the excellent stupalith of mechanical property, during use, heating value is few, and temperature rise is low, and stability is high, there is good anti-contact fatigue characteristic and wear-resisting property, long service life.In addition, pedestal body processibility is superior, can adopt the angular contact ball bearing of double inclined surface structure, increases cooling space, and coolant channels is arranged convenient, effectively reduces the temperature rise of bearing support.Outer separator 3 and inner spacing collar 4 are between two angular contact ball bearings 2, in the axial direction, correspondence holds out against in the outer ring of angular contact ball bearing 2 and inner ring position respectively, guarantee the working gap of angular contact ball bearing 2 axis, diametrically, coordinate with turbine housing hole and turbine rotor shaft 1 respectively, the working gap preventing pine from producing circular runout or tension appearance radial direction reduces, and by outer separator 3 and inner spacing collar 4 are set length difference to regulate play, and then improve the velocity limit of bearing support, extend lifetime limitation, assembling is simple, processing cost reduces, maintenance is replaced convenient.
Claims (7)
1. a separated type high speed scroll turbocharger bearing body, it is characterized in that, comprise turbine rotor shaft (1), angular contact ball bearing (2), outer separator (3), inner spacing collar (4) and headgear (5), angular contact ball bearing (2) has two, be enclosed within the two ends of turbine rotor shaft (1) respectively, outer separator (3) and inner spacing collar (4) are installed between two angular contact ball bearings (2), and headgear (5) is arranged on the top of turbine rotor shaft (1).
2. separated type high speed scroll turbocharger bearing body according to claim 1, it is characterized in that, outer separator (3) is provided with oil outlet (31) and oil duct slope (32), is embedded in turbine housing hole, and two ends withstand on the outer ring of two angular contact ball bearings (2) respectively.
3. separated type high speed scroll turbocharger bearing body according to claim 1, is characterized in that, the two ends fitting over the inner spacing collar (4) on turbine rotor shaft (1) withstand on the inner ring of two angular contact ball bearings (2) respectively.
4. separated type high speed scroll turbocharger bearing body according to claim 1, is characterized in that, outer separator (3) comparatively inner spacing collar (4) is short.
5. separated type high speed scroll turbocharger bearing body according to claim 1, is characterized in that, the outer ring of angular contact ball bearing (2), inner ring and ball are all ceramic materials, and retainer is PEEK material.
6. separated type high speed scroll turbocharger bearing body according to claim 1, is characterized in that, outer ring and the inner ring of angular contact ball bearing (2) are double inclined surface structure.
7. separated type high speed scroll turbocharger bearing body according to claim 1, is characterized in that, headgear (5) is provided with seal groove (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420338740.1U CN204082231U (en) | 2014-06-24 | 2014-06-24 | Separated type high speed scroll turbocharger bearing body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420338740.1U CN204082231U (en) | 2014-06-24 | 2014-06-24 | Separated type high speed scroll turbocharger bearing body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204082231U true CN204082231U (en) | 2015-01-07 |
Family
ID=52174961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420338740.1U Expired - Fee Related CN204082231U (en) | 2014-06-24 | 2014-06-24 | Separated type high speed scroll turbocharger bearing body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204082231U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104018897A (en) * | 2014-06-24 | 2014-09-03 | 常州新瑞汽车配件制造有限公司 | Split type high-speed rolling bearing body of turbocharger |
-
2014
- 2014-06-24 CN CN201420338740.1U patent/CN204082231U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104018897A (en) * | 2014-06-24 | 2014-09-03 | 常州新瑞汽车配件制造有限公司 | Split type high-speed rolling bearing body of turbocharger |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150107 Termination date: 20180624 |