CN201433816Y - Maglev thrust bearing type supercharger - Google Patents
Maglev thrust bearing type supercharger Download PDFInfo
- Publication number
- CN201433816Y CN201433816Y CN200920043521XU CN200920043521U CN201433816Y CN 201433816 Y CN201433816 Y CN 201433816Y CN 200920043521X U CN200920043521X U CN 200920043521XU CN 200920043521 U CN200920043521 U CN 200920043521U CN 201433816 Y CN201433816 Y CN 201433816Y
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- Prior art keywords
- magnetic sheet
- magnetostatic
- supercharger
- thrust bearing
- polarity
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- Expired - Fee Related
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Abstract
The utility model relates to a maglev thrust bearing type supercharger, which comprises a shell, a driving shaft arranged in the shell, and an impeller which is arranged at one end of the driving shaft, wherein a dynamic magnetic sheet is arranged on the driving shaft, and a static magnetic sheet is respectively arranged at the two ends of the dynamic magnetic sheet; and the polarity of the side of the dynamic magnetic sheet is same with the polarity of the static magnetic sheet. The supercharger changes the existing mechanical contact type bearing into the non-contact type bearing, so that the production of friction is greatly reduced, and the reliability of the supercharger is improved; and simultaneously, lubricating oil can be eliminated, and the problem of the oil leakage of the supercharger is thoroughly solved. The utility model utilizes the basic principle that the same polarity ends of permanent magnets repel each other, so that the dynamic magnetic sheet is positioned betweenthe two static magnetic sheets. When the clearances between the dynamic magnetic sheet and the static magnetic sheets change, the magnetic deviation is generated. When the magnetic deviation is equalto the axial force borne by the rotating shaft of the supercharger, the dynamic magnetic sheet is stabilized at a certain position between the two static magnetic sheets; accordingly, the supercharger has the advantages of small friction and oil leakage prevention.
Description
Technical field
The utility model relates to the pressurized machine of the floating thrust bearing formula of a kind of magnetic.
Background technique
Existing pressurized machine extensively adopts floating bearing and hydrodynamic thrust bearing.Hydrodynamic thrust bearing wherein is exactly to absorb thrust by the oil film between rotary piece and bearing, and rotary piece and bearing are isolated, and to reduce the frictional force and the heat of high speed rotating sheet, reaches the working life that prolongs thrust bearing.
But in actual use, the hydrodynamic thrust bearing of pressurized machine often is worn, and takes place so that make impeller wipe phenomenons such as shell, leakage of oil thereupon.Cause the factor of hydrodynamic thrust bearing wearing and tearing to have:
A: oil clearance is inhomogeneous, causes shaft strength inhomogeneous, thereby quickens the rate of wear of stressed big oil clearance.B: because of the restriction of thrust bearing volume, the oil inlet hole on the bearing is generally very little, and after the impurity of lubricant oil was blocked oil inlet hole, thrust bearing just was in the state of oil-free lubrication, both had been subjected to high-speed friction, unlubricated again oil, and it is just inevitable to wear and tear.
The model utility content
Technical problem to be solved in the utility model provide a kind of simple in structure, frictional force is less and can prevent the pressurized machine of the floating thrust bearing formula of magnetic of pressurized machine leakage of oil.
For solving the problems of the technologies described above, the utility model provides the pressurized machine of the floating thrust bearing formula of a kind of magnetic, comprise housing, be located at the transmission shaft in the housing and be located at the impeller of transmission shaft one end, the impeller left side is fixed with the moving magnetic sheet of circular permanent magnet material on the transmission shaft, the two ends, the left and right sides of moving magnetic sheet are respectively equipped with first magnetostatic and second magnetostatic of annular permanent magnet material, the left surface of moving magnetic sheet is identical with the polarity of first magnetostatic right flank, and the right flank of moving magnetic sheet is identical with the polarity of second magnetostatic left surface.
Further, there is the gap between described moving magnetic sheet and first magnetostatic and second magnetostatic.
Further, described first magnetostatic and second magnetostatic is fixed in the described housing.
The utlity model has positive effect: the pressurized machine of the floating thrust bearing formula of (1) magnetic of the present utility model, overcome the shortcoming that existing pressurized machine adopts filmatic bearing, change into existing mechanical contact-type bearing contactless, reduced the generation of frictional force greatly, improved the reliability of pressurized machine, simultaneously can cancel lubricant oil, thoroughly eliminate the defective of pressurized machine leakage of oil.(2) pressurized machine of the floating thrust bearing formula of magnetic of the present utility model uses two static permanent magnetism sheets, and a moving magnetic sheet that is fixed on the rotatingshaft is set therebetween.The basic principle of utilizing the permanent magnet polarity same side to repel each other, moving magnetic sheet must be between two magnetostatic.When moving magnetic sheet and magnetostatic gap changes, just produce magnetic deviation.When the suffered axial force of the magnetic deviation and the rotatingshaft of pressurized machine equated, moving magnetic sheet just was stabilized in a certain position between two magnetostatic, and therefore, that pressurized machine of the present utility model has is simple in structure, frictional force is less and can prevent the advantage of pressurized machine leakage of oil.
Description of drawings
For the easier quilt of content of the present utility model is clearly understood, below the specific embodiment and in conjunction with the accompanying drawings of basis, the utility model is described in further detail, wherein
Fig. 1 is the partial cross sectional views that embodiment 1 magnetic floats the pressurized machine of thrust bearing formula.
Embodiment
See Fig. 1, the pressurized machine of the floating thrust bearing formula of the magnetic of present embodiment comprises housing, be located at the transmission shaft 2 in the housing and be located at the impeller 1 of transmission shaft 2 one ends, impeller 1 left side is fixed with the moving magnetic sheet 4 of circular permanent magnet material on the transmission shaft 2, the two ends, the left and right sides of moving magnetic sheet 4 are respectively equipped with first magnetostatic 3 and second magnetostatic 5 of annular permanent magnet material, the left surface of moving magnetic sheet 4 is identical with the polarity of first magnetostatic 3 right flank, and the right flank of moving magnetic sheet 4 is identical with the polarity of second magnetostatic 5 left surface.
There is the gap between described moving magnetic sheet 4 and first magnetostatic 3 and second magnetostatic 5.Described first magnetostatic 3 and second magnetostatic 5 is fixed in the described housing.
During use, the basic principle of utilizing the permanent magnet polarity same side to repel each other, moving magnetic sheet 4 must be between first magnetostatic 3 and second magnetostatic 5.When moving magnetic sheet and first magnetostatic 3 or second magnetostatic 5 gap changes, just produce axial magnetic deviation.When magnetic deviation and rotatingshaft 2 suffered axial forces equated, moving magnetic sheet 4 just was stabilized in a certain position between first magnetostatic 3 and second magnetostatic 5.
The foregoing description only is for the utility model example clearly is described, and is not to be qualification to mode of execution of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give exhaustive to all mode of executions.And these belong to conspicuous variation or the change that spirit of the present utility model extended out and still are among the protection domain of the present utility model.
Claims (3)
1, the pressurized machine of the floating thrust bearing formula of a kind of magnetic, it is characterized in that comprising: housing, be located at the transmission shaft (2) in the housing and be located at the impeller (1) of transmission shaft (2) one ends, transmission shaft (2) is gone up the moving magnetic sheet (4) that impeller (1) left side is fixed with the circular permanent magnet material, the two ends, the left and right sides of moving magnetic sheet (4) are respectively equipped with first magnetostatic (3) and second magnetostatic (5) of annular permanent magnet material, the left surface of moving magnetic sheet (4) is identical with the polarity of the right flank of first magnetostatic (3), and the right flank of moving magnetic sheet (4) is identical with the polarity of the left surface of second magnetostatic (5).
2, the pressurized machine of the floating thrust bearing formula of magnetic according to claim 1 is characterized in that: have the gap between described moving magnetic sheet (4) and first magnetostatic (3) and second magnetostatic (5).
3, the pressurized machine of the floating thrust bearing formula of magnetic according to claim 2, it is characterized in that: described first magnetostatic (3) and second magnetostatic (5) are fixed in the described housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920043521XU CN201433816Y (en) | 2009-07-07 | 2009-07-07 | Maglev thrust bearing type supercharger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920043521XU CN201433816Y (en) | 2009-07-07 | 2009-07-07 | Maglev thrust bearing type supercharger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201433816Y true CN201433816Y (en) | 2010-03-31 |
Family
ID=42052623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920043521XU Expired - Fee Related CN201433816Y (en) | 2009-07-07 | 2009-07-07 | Maglev thrust bearing type supercharger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201433816Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120301278A1 (en) * | 2011-05-25 | 2012-11-29 | GM Global Technology Operations LLC | Engine assembly including turbocharger |
| TWI402436B (en) * | 2010-12-30 | 2013-07-21 | 私立中原大學 | Axial hybrid magnetic bearing, method for operation thereof, and structure for rotor thereof |
| CN105190010A (en) * | 2013-02-13 | 2015-12-23 | 韩承周 | Self-driven apparatus for charging expanded air |
| CN107740814A (en) * | 2017-11-20 | 2018-02-27 | 南昌工程学院 | Built-in loop type permanent magnet magnetism bearing and its processing method |
-
2009
- 2009-07-07 CN CN200920043521XU patent/CN201433816Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI402436B (en) * | 2010-12-30 | 2013-07-21 | 私立中原大學 | Axial hybrid magnetic bearing, method for operation thereof, and structure for rotor thereof |
| US20120301278A1 (en) * | 2011-05-25 | 2012-11-29 | GM Global Technology Operations LLC | Engine assembly including turbocharger |
| US8544268B2 (en) * | 2011-05-25 | 2013-10-01 | GM Global Technology Operations LLC | Engine assembly including turbocharger |
| CN105190010A (en) * | 2013-02-13 | 2015-12-23 | 韩承周 | Self-driven apparatus for charging expanded air |
| CN107740814A (en) * | 2017-11-20 | 2018-02-27 | 南昌工程学院 | Built-in loop type permanent magnet magnetism bearing and its processing method |
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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 |
Granted publication date: 20100331 Termination date: 20140707 |
|
| EXPY | Termination of patent right or utility model |