CN2309454Y - Magnetic floating bearing - Google Patents
Magnetic floating bearing Download PDFInfo
- Publication number
- CN2309454Y CN2309454Y CN 97210018 CN97210018U CN2309454Y CN 2309454 Y CN2309454 Y CN 2309454Y CN 97210018 CN97210018 CN 97210018 CN 97210018 U CN97210018 U CN 97210018U CN 2309454 Y CN2309454 Y CN 2309454Y
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- annular
- bearing
- steel
- rotating magnetic
- magnetic steel
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Abstract
The utility model discloses a magnetic suspension type bearing which comprises annular rotating magnetic steel, a mandrel and annular stationary magnetic steel. According to different types, the utility model can be a magnetic suspension type thrust bearing or a magnetic suspension type centripetal bearing, wherein the magnetic suspension type thrust bearing adopts the principle that magnetic poles of the same magnetic performance are mutually repulsed, magnetic suspension is adopted on a stress direction and the guide positioning of the mandrel adopts a sliding contact method. The magnetic suspension type centripetal bearing is centered in a radial or an axial direction under the utilization of the identical or reverse directions of the magnetic poles of the annular rotating magnetic steel and the stationary magnetic steel. In the stress direction, the utility model has the advantages of no contact, friction, wear, vibration, noise, heating and lubrication.
Description
The utility model relates to a kind of bearing, particularly a kind of electromagnetic levitation type bearing.
Existing all kinds of sliding bearings and rolling bearing are slip or rolling type and directly contact between its corresponding moving element, its advantage is that bearing capacity is strong, the positional accuracy height, but, have following shortcoming: frictional resistance is arranged because of being in contact with one another, easily produce mechanical wear and heating, have mechanical vibration, noise is arranged, ordinary circumstance need make with lubricator, therefore, the operating cost height, the repair rate height, working life is short.
Goal of the invention of the present utility model is intended to overcome above-mentioned shortcoming, and a kind of brand-new nothing friction electromagnetic levitation type bearing is provided.
Goal of the invention of the present utility model is achieved in that
The utility model comprises annular rotating magnetic steel, mandrel, annular static magnet steel.Kind according to bearing is divided into electromagnetic levitation type thrust-bearing and electromagnetic levitation type radial bearing.
The cardinal principle of the utility model electromagnetic levitation type thrust-bearing and structure are the principles that adopts the magnetic pole same sex to repel each other, be subjected to force direction to adopt magnetic suspension, the mandrel guide-localization adopts sliding contacting mode, mandrel adopts nonmagnetic substance, prevent that magnet short-cut path from influencing suspending power, annular rotating magnetic steel and annular static magnet steel are permanent magnet or electromagnet, simultaneously, minimum range between annular rotating magnetic steel and the annular static magnet steel is 1 millimeter, the electromagnetic levitation type thrust-bearing is applicable to the suspension type swivel gear, because vertical the installation, make gravitational equilibrium, the guiding friction of mandrel is fixed on a very little value, can not increase with the increase of (pushing away) pulling force, and the revolution flexibility under underloading or heavy duty is very strong.
The working principle and the structure of the utility model electromagnetic levitation type radial bearing are: annular rotating magnetic steel and annular static magnet steel magnetic pole are equidirectional, radial centering, and annular rotating magnetic steel is concordant with annular static magnet steel, and end thrust is zero; Annular rotating magnetic steel and annular static magnet steel magnetic pole are on the contrary to axially locating; The gap of annular rotating magnetic steel and annular static magnet steel is not as the criterion not collide under the extreme case, the gap is more little, stability is good more, radial location accuracy of measurement height, mandrel and bearing support all are nonmagnetic substances, and the electromagnetic levitation type radial bearing uses little at bearing capacity, not high but require local unusually flexibly to status requirement radially, can be used at a high speed, noise free is in the unlubricated project. and annular rotating magnetic steel and annular static magnet steel are permanent magnet or electromagnet.
According to the kind difference of bearing, magnet steel is cylindrical, adopts identical principle, can realize the electromagnetic levitation type bearing, reaches the purpose of this utility model.
The utility model compared with prior art has the following advantages:
1, the utility model uses magnetic levitation technology to replace the slip or the means of rolling of traditional bearing, its advantage be subjected to force direction contactless fully, do not have friction, no wearing and tearing, friction, noise free, do not generate heat, need not lubricate.
2, the utility model is simple for structure, and is applied widely, turns round flexibly unusually, quiet, has the overlength characteristics in working life.
Provide accompanying drawing of the present utility model below
Fig. 1 theory structure schematic representation of the present utility model
The structural representation of Fig. 2 the utility model thrust-bearing
The structural representation of Fig. 3 the utility model thrust-bearing
Fig. 4 the utility model radial bearing is the structural representation of magnetic pole in the same way
The structural representation of the reverse magnetic pole of Fig. 5 the utility model radial bearing
Below in conjunction with drawings and Examples, the utility model is described in further detail.
The utility model comprises annular rotating magnetic steel 1, mandrel 2, annular static magnet steel 3.Kind according to bearing is divided into electromagnetic levitation type thrust-bearing and electromagnetic levitation type radial bearing.
The cardinal principle of the utility model electromagnetic levitation type thrust-bearing and structure are the principles that adopts the magnetic pole same sex to repel each other, be subjected to force direction to adopt magnetic suspension, mandrel 2 guide-localizations adopt sliding contacting mode, mandrel 2 adopts nonmagnetic substance, prevent that magnet short-cut path from influencing suspending power, annular rotating magnetic steel 1 and annular static magnet steel 3 are permanent magnet or electromagnet, simultaneously, minimum range between annular rotating magnetic steel 1 and the annular static magnet steel 3 is 1 millimeter, the electromagnetic levitation type thrust-bearing is applicable to the suspension type swivel gear, because vertical the installation, make gravitational equilibrium, the guiding friction of mandrel 2 is fixed on a very little value, can not increase with the increase of (pushing away) pulling force, and the revolution flexibility under underloading or heavy duty is very strong.
The working principle and the structure of the utility model electromagnetic levitation type radial bearing are: annular rotating magnetic steel 1 and annular static magnet steel 3 magnetic poles are equidirectional, radial centering, and annular rotating magnetic steel 1 is concordant with annular static magnet steel 3, and end thrust is zero; Annular rotating magnetic steel 1 and annular static magnet steel 3 magnetic poles are on the contrary to axially locating; The gap of annular rotating magnetic steel 1 and annular static magnet steel 3 is not as the criterion not collide under the extreme case, the gap is more little, stability is good more, the precision height is put in radial location, mandrel 2 and bearing support all are nonmagnetic substances, and it is little at bearing capacity that the electromagnetic levitation type radial bearing uses, and be not high but require local unusually flexibly to status requirement radially, can be used in high speed, noise free, the unlubricated project, annular rotating magnetic steel 1 and annular static magnet steel 3 are permanent magnet or electromagnet.
According to the kind difference of bearing, magnet steel is cylindrical, adopts identical principle, can realize the electromagnetic levitation type bearing, reaches the purpose of this utility model.
The utility model replaces slip or the roll mode of traditional bearing with magnetic levitation technology, Its advantage be subjected to force direction fully contactless, do not have friction, no wearing and tearing, friction, nothing and make an uproar Sound, do not generate heat, need not lubricate. The utility model is simple for structure, and is applied widely, revolution Unusually flexible, quiet, have the characteristics of long service life.
Claims (1)
1, a kind of electromagnetic levitation type bearing comprises annular rotating magnetic steel (1), mandrel (2), annular static magnet steel (3), is divided into electromagnetic levitation type thrust-bearing and electromagnetic levitation type radial bearing, it is characterized in that:
The electromagnetic levitation type thrust-bearing is being subjected to force direction to adopt magnetic suspension, mandrel (2) guide-localization adopts sliding contacting mode, mandrel (2) adopts nonmagnetic substance, annular rotating magnetic steel (1) and annular static magnet steel (3) are permanent magnet or electromagnet, minimum range between annular rotating magnetic steel (1) and the annular static magnet steel (3) is 1 millimeter
The annular rotating magnetic steel (1) and annular static magnet steel (3) magnetic pole of electromagnetic levitation type radial bearing are equidirectional, radial centering, annular rotating magnetic steel (1) is concordant with annular static magnet steel (3), end thrust is zero, annular rotating magnetic steel (1) and annular static magnet steel (3) magnetic pole are on the contrary to axially locating, the gap of annular rotating magnetic steel (1) and annular static magnet steel (3) is not as the criterion not collide under the extreme case, mandrel (2) and bearing support all are nonmagnetic substances, and annular rotating magnetic steel (1) and annular static magnet steel (3) are permanent magnet or electromagnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97210018 CN2309454Y (en) | 1997-03-27 | 1997-03-27 | Magnetic floating bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97210018 CN2309454Y (en) | 1997-03-27 | 1997-03-27 | Magnetic floating bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2309454Y true CN2309454Y (en) | 1999-03-03 |
Family
ID=33929055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97210018 Expired - Fee Related CN2309454Y (en) | 1997-03-27 | 1997-03-27 | Magnetic floating bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2309454Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104565054A (en) * | 2013-10-24 | 2015-04-29 | 武汉理工大学 | Axial magnetic bearing redundant structure |
-
1997
- 1997-03-27 CN CN 97210018 patent/CN2309454Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104565054A (en) * | 2013-10-24 | 2015-04-29 | 武汉理工大学 | Axial magnetic bearing redundant structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |