CN107387174A - Turbocharger with angular contact ceramic ball bearing - Google Patents
Turbocharger with angular contact ceramic ball bearing Download PDFInfo
- Publication number
- CN107387174A CN107387174A CN201710609962.0A CN201710609962A CN107387174A CN 107387174 A CN107387174 A CN 107387174A CN 201710609962 A CN201710609962 A CN 201710609962A CN 107387174 A CN107387174 A CN 107387174A
- Authority
- CN
- China
- Prior art keywords
- bearing
- angular contact
- ceramic ball
- turbine rotor
- compressor impeller
- 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.)
- Pending
Links
- 239000000919 ceramic Substances 0.000 title claims abstract description 20
- 238000005299 abrasion Methods 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/16—Arrangement of bearings; Supporting or mounting bearings in casings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
- F04D29/056—Bearings
- F04D29/0566—Ceramic bearing designs
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Supercharger (AREA)
Abstract
Turbocharger with angular contact ceramic ball bearing, including compressor impeller, turbine rotor, armature spindle, bearing body, compressor volute and turbine box；Bearing body is sleeved on armature spindle by floating bearing and bearing A and is positioned in the axial direction, and between compressor impeller and turbine rotor, floating bearing is close to compressor impeller, and bearing A is close to turbine rotor；The bearing A is angular contact ceramic ball bearing, and its one end is positioned by the step surface in bearing body endoporus, and the other end is positioned by the shaft shoulder A of armature spindle.It is an advantage of the invention that bearing A (angular contact ceramic ball bearing) can share the axial force that a part of thrust bearing is born, the abrasion of thrust bearing is substantially reduced, improves the reliability of booster, extends the service life of booster.
Description
Technical field
The present invention relates to turbo-charger technical field, particularly a kind of turbocharging with angular contact ceramic ball bearing
Device.
Background technology
Matching of Turbocharger is designed not just for major main engine factory, also towards vast spare part marketing users.It is standby
Part marketing users the problems such as often being faced with engine performance aging, be short of power, make when selecting booster to booster
With requiring also actual, low-speed big is often pursued.When therefore developing booster for spare part market user, designer can subtract
Thus small turbine box throat area can cause the imbalance of booster axial force to strengthen the low-speed performance of booster, at this
In the failure mode of class turbocharger, thrust bearing failure account for very big ratio.
The thrust bearing of turbocharger is a kind of consumable accessory, and working environment is very severe, using an impeller diameter as 86mm
Booster exemplified by, its working speed can reach 110,000 revs/min, and axial force can reach nearly 300N, and thrust bearing is at this
Under the repeated stock of the high rotating speed of sample and larger axial force, it is easy to fail, and then terminate the service life of booster.
The content of the invention
The purpose of the present invention is overcome the deficiencies in the prior art, and provides a kind of turbine with angular contact ceramic ball bearing
Booster, its reliability is high and easy to assembly, employs that single intersection Ceramic Balls congee is thick to share the axial direction of turbocharger
Power, solve the problems, such as that thrust bearing fails caused by booster axial force imbalance.
The technical scheme is that：Turbocharger with angular contact ceramic ball bearing, including compressor impeller, whirlpool
Take turns rotor, armature spindle, bearing body, compressor volute and turbine box；
Compressor impeller and turbine rotor are respectively and fixedly installed to the both ends of armature spindle；
Bearing body is sleeved on armature spindle by floating bearing and bearing A and is positioned in the axial direction, and is located at compressor impeller
Between turbine rotor, floating bearing is close to compressor impeller, and bearing A is close to turbine rotor；
Compressor volute and turbine box are respectively fixedly connected with the both ends of bearing body, both inner chambers respectively by compressor impeller and
Turbine rotor is accommodated in the inner；
The bearing A is angular contact ceramic ball bearing, and its one end is positioned by the step surface in bearing body endoporus, and the other end passes through
The shaft shoulder A positioning of armature spindle.
Further technical scheme is the present invention：The Impact direction of bearing A axial forces points to compressor impeller.
The present invention has the following advantages that compared with prior art：
1st, bearing A (angular contact ceramic ball bearing) can share the axial force that a part of thrust bearing is born, and substantially reduce thrust
The abrasion of bearing, the reliability of booster is improved, extend the service life of booster.
2nd, efficiency of vent oxidation catalyst ability is improved, rolling element oil film resistance is small, starts fast.
3rd, whirlpool end (turbine rotor) bearing sintering failure mode, pressure and temperature ratio of the ceramic ball bearing to lubricating oil are reduced
Traditional floating bearing is low, and can be with short time oil-break.
4th, the mechanical efficiency of turbocharger is improved, angular contact ceramic ball bearing has up to 85%-99% machinery effect in itself
Rate, higher than filmatic bearing (i.e. floating bearing) 85%-90% mechanical efficiency.
Below in conjunction with figure, the invention will be further described with embodiment.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is Fig. 1 A portions enlarged drawing；
Fig. 3 is Fig. 1 B portions enlarged drawing.
Embodiment
Embodiment 1：
As Figure 1-3, the turbocharger with angular contact ceramic ball bearing, including compressor impeller 1, turbine rotor 2, turn
Sub- axle 3, bearing body 4, compressor volute 5 and turbine box 6.
Compressor impeller 1 and turbine rotor 2 are respectively and fixedly installed to the both ends of armature spindle 3.
Bearing body 4 is sleeved on armature spindle 3 by floating bearing 41 and bearing A42 and is positioned in the axial direction, and is located at
Between compressor impeller 1 and turbine rotor 2, floating bearing 41 is close to compressor impeller 1, and bearing A42 is close to turbine rotor 2.Institute
It is angular contact ceramic ball bearing to state bearing A42, and its one end is positioned by the step surface in the endoporus of bearing body 4, and the other end is by turning
The shaft shoulder A31 positioning of sub- axle 3.The Impact direction of bearing A42 axial forces points to compressor impeller 1.
Compressor volute 5 and turbine box 6 are respectively fixedly connected with the both ends of bearing body 4, and both inner chambers will calm the anger respectively
Machine impeller 1 and turbine rotor 2 are accommodated in the inner.
Sketch the principle of the present invention：Booster is when engine is in operating modes such as anxious acceleration, full load, it will produces very big
The axial force of compressor impeller 1 is pointed to, this axial force has broken the dynamic balance of turbine rotor 2, for thrust bearing 7, has been
One serious failure mode.But due to the use of bearing A42 (angular contact ceramic ball bearing), it can be common with thrust bearing 7
With this burst of axial force is born, when axial force points to pressure side (one end of compressor impeller 1) by whirlpool end (one end of turbine rotor 2), most
Axial force is first undertaken by thrust bearing 7, as axial force gradually increases, turbine rotor 2 will destroy thrust to pressure side displacement
During the oil film of bearing 7, bearing A42 (angular contact ceramic ball bearing) starts to undertake part axial force, is thus unlikely to because of axial force
It is excessive and cause the premature abrasion of thrust bearing 7, so as to reduce the risk of the failure of thrust bearing 7, extend the service life of booster.
Claims (2)
1. the turbocharger with angular contact ceramic ball bearing, including compressor impeller (1), turbine rotor (2), armature spindle
(3), bearing body (4), compressor volute (5) and turbine box (6)；
Compressor impeller (1) and turbine rotor (2) are respectively and fixedly installed to the both ends of armature spindle (3)；
Bearing body (4) is sleeved on armature spindle (3) by floating bearing (41) and bearing A (42) and is positioned in the axial direction, and
Between compressor impeller (1) and turbine rotor (2), floating bearing (41) leans on close to compressor impeller (1), bearing A (42)
Nearly turbine rotor (2)；
Compressor volute (5) and turbine box (6) are respectively fixedly connected with the both ends of bearing body (4), and both inner chambers respectively will pressure
Compressor wheel (1) and turbine rotor (2) are accommodated in the inner；
It is characterized in that：The bearing A (42) is angular contact ceramic ball bearing, and its one end passes through the step in bearing body (4) endoporus
Face is positioned, and the other end is positioned by the shaft shoulder A (31) of armature spindle (3).
2. the turbocharger of angular contact ceramic ball bearing is carried as claimed in claim 1, it is characterized in that：Bearing A (42) axle
Compressor impeller (1) is pointed to the Impact direction of power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710609962.0A CN107387174A (en) | 2017-07-25 | 2017-07-25 | Turbocharger with angular contact ceramic ball bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710609962.0A CN107387174A (en) | 2017-07-25 | 2017-07-25 | Turbocharger with angular contact ceramic ball bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107387174A true CN107387174A (en) | 2017-11-24 |
Family
ID=60336883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710609962.0A Pending CN107387174A (en) | 2017-07-25 | 2017-07-25 | Turbocharger with angular contact ceramic ball bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107387174A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113530878A (en) * | 2021-08-03 | 2021-10-22 | 中车大连机车研究所有限公司 | Main shaft connecting structure of turbocharger |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101949309A (en) * | 2010-09-13 | 2011-01-19 | 无锡科博增压器有限公司 | Semi-floating and semi-ball bearing turbocharger |
| CN102269019A (en) * | 2011-08-29 | 2011-12-07 | 无锡明珠增压器制造有限公司 | Rotor shaft support structure of turbocharger |
| CN102418569A (en) * | 2011-08-19 | 2012-04-18 | 中国兵器工业集团第七○研究所 | Detachable and integral ball bearing turbocharger based on double single-row bearings |
| CN207245771U (en) * | 2017-07-25 | 2018-04-17 | 湖南天雁机械有限责任公司 | Turbocharger with angular contact ceramic ball bearing |
-
2017
- 2017-07-25 CN CN201710609962.0A patent/CN107387174A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101949309A (en) * | 2010-09-13 | 2011-01-19 | 无锡科博增压器有限公司 | Semi-floating and semi-ball bearing turbocharger |
| CN102418569A (en) * | 2011-08-19 | 2012-04-18 | 中国兵器工业集团第七○研究所 | Detachable and integral ball bearing turbocharger based on double single-row bearings |
| CN102269019A (en) * | 2011-08-29 | 2011-12-07 | 无锡明珠增压器制造有限公司 | Rotor shaft support structure of turbocharger |
| CN207245771U (en) * | 2017-07-25 | 2018-04-17 | 湖南天雁机械有限责任公司 | Turbocharger with angular contact ceramic ball bearing |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113530878A (en) * | 2021-08-03 | 2021-10-22 | 中车大连机车研究所有限公司 | Main shaft connecting structure of turbocharger |
| CN113530878B (en) * | 2021-08-03 | 2024-06-04 | 中车大连机车研究所有限公司 | Main shaft connecting structure of turbocharger |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171124 |