CN109281937B - Permanent magnet suspension bearing rotor - Google Patents
Permanent magnet suspension bearing rotor Download PDFInfo
- Publication number
- CN109281937B CN109281937B CN201811461270.7A CN201811461270A CN109281937B CN 109281937 B CN109281937 B CN 109281937B CN 201811461270 A CN201811461270 A CN 201811461270A CN 109281937 B CN109281937 B CN 109281937B
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- China
- Prior art keywords
- rotor
- magnet
- suspension bearing
- permanent magnet
- inner cylinder
- 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.)
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- 239000000725 suspension Substances 0.000 title claims abstract description 68
- 229910000838 Al alloy Inorganic materials 0.000 claims description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 229910000531 Co alloy Inorganic materials 0.000 claims description 4
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 claims description 4
- 229910001209 Low-carbon steel Inorganic materials 0.000 claims description 4
- 229910000676 Si alloy Inorganic materials 0.000 claims description 4
- QVYYOKWPCQYKEY-UHFFFAOYSA-N [Fe].[Co] Chemical compound [Fe].[Co] QVYYOKWPCQYKEY-UHFFFAOYSA-N 0.000 claims description 4
- KCZFLPPCFOHPNI-UHFFFAOYSA-N alumane;iron Chemical compound [AlH3].[Fe] KCZFLPPCFOHPNI-UHFFFAOYSA-N 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 4
- XWHPIFXRKKHEKR-UHFFFAOYSA-N iron silicon Chemical compound [Si].[Fe] XWHPIFXRKKHEKR-UHFFFAOYSA-N 0.000 claims description 4
- -1 iron-silicon-aluminum Chemical compound 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 5
- 239000007769 metal material Substances 0.000 description 3
- 230000005415 magnetization Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000005339 levitation Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C32/00—Bearings not otherwise provided for
- F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
- F16C32/0406—Magnetic bearings
- F16C32/0408—Passive magnetic bearings
- F16C32/041—Passive magnetic bearings with permanent magnets on one part attracting the other part
- F16C32/0421—Passive magnetic bearings with permanent magnets on one part attracting the other part for both radial and axial load
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
The application discloses a permanent magnet suspension bearing rotor, which is characterized by comprising the following components: the rotor comprises an inner cylinder, a connecting ring, an outer cylinder and a rotor magnet group; the inner cavity of the inner cylinder is used for installing an equipment rotating shaft; the inner ring of the connecting ring is connected with the first end part of the inner cylinder, the outer ring of the connecting ring is connected with the first end part of the outer cylinder, and the inner cylinder, the connecting ring and the outer cylinder are coaxially arranged; the rotor magnet group comprises at least one rotor magnet unit, wherein the rotor magnet unit is an integrated magnet with an annular structure, or the magnet unit is a magnet with an annular structure spliced by magnetic sheets; the rotor magnet group is fixedly arranged on the outer cylinder.
Description
Technical Field
The application belongs to the technical field of magnetic suspension bearings, and particularly relates to a permanent magnet suspension bearing rotor.
Background
Bearings (bearings) are an important component in contemporary mechanical devices, and their main functions are to support the mechanical rotating body, reduce the friction coefficient during its movement, and ensure its rotational accuracy. The magnetic suspension bearing is used for suspending the rotor in the air relative to the rotor by utilizing the magnetic force action, so that the rotor is not in mechanical contact with each other. The rotor of the magnetic bearing is capable of running to a very high rotational speed compared to conventional rolling bearings, sliding bearings, etc., and is thus generally used in high-speed, ultra-high-speed applications, such as some high-speed, ultra-high-speed machines.
The axial permanent magnet suspension bearing in the prior art comprises a rotor pulling and pushing magnet arranged on a rotor and a rotor pulling and pushing magnet which is correspondingly arranged on the rotor through a soft magnetic material matrix, has an axial gap with the rotor pulling and pushing magnet and forms a pulling and pushing magnetic circuit, wherein the rotor pulling and pushing magnet and the rotor pulling and pushing magnet are respectively formed by two or more annular permanent magnets which are closely attached in the radial direction and have magnetic poles distributed alternately in the radial direction, and the upper and lower annular permanent magnets corresponding to the same radial position have the same magnetic size and opposite polarities; the rotor pulling and pushing magnet and the annular surface, close to the vertical shaft, of the annular permanent magnet, close to the vertical shaft, of the rotor pulling and pushing magnet are radially spaced from the surface of the vertical shaft. The bearing can reduce the bearing load by 98% and the friction force by 98%; but the bearing cannot bear a large load in the radial direction, so that the application range of the bearing is greatly limited.
The radial permanent magnet suspension bearing in the prior art comprises an outer shell, a left rotor body, a right rotor body, a left guide body and a right guide body, and the rotor body. The magnetic suspension radial bearing comprises a circular static permanent magnetic array and a circular rotating permanent magnetic array at two sides in an outer shell, a left guide body, a right guide body and a rotor body. The rotor magnetic array magnetic levitation shaft bears the radial suspension of the negative rotor, and the left guide body and the right guide body bear the negative limitation of left and right two-degree-of-freedom guide. The radial suspension bearing has large buoyancy, can float a heavy rotor with a weight of hundreds of tons, and has low cost; since no mechanical bearings are used for guiding, the device has no mechanical abrasion and no energy loss. But the bearing cannot carry a large load in the axial direction, further limiting its range of use.
Disclosure of Invention
The application aims to provide a permanent magnet suspension bearing rotor which solves at least one technical problem mentioned in the prior art.
The technical scheme for solving the technical problems is as follows: a permanent magnet suspension bearing rotor comprising: the rotor comprises an inner cylinder, a connecting ring, an outer cylinder and a rotor magnet group; the inner cavity of the inner cylinder is used for installing an equipment rotating shaft; the inner ring of the connecting ring is connected with the first end part of the inner cylinder, the outer ring of the connecting ring is connected with the first end part of the outer cylinder, and the inner cylinder, the connecting ring and the outer cylinder are coaxially arranged; the rotor magnet group comprises at least one rotor magnet unit, wherein the rotor magnet unit is an integrated magnet with an annular structure, or the magnet unit is a magnet with an annular structure spliced by magnetic sheets; the rotor magnet group is fixedly arranged on the outer cylinder.
The permanent magnet suspension bearing rotor disclosed by the application further comprises a rotor baffle ring, wherein the rotor baffle ring is fixedly connected to the second end part of the outer cylinder.
According to the permanent magnet suspension bearing rotor disclosed by the application, further, the magnetizing direction of the rotor magnet units is radial magnetizing, and the magnetic poles of the adjacent rotor magnet units are opposite.
In the permanent magnet suspension bearing rotor according to the present application, the space formed by the outer wall of the inner cylinder and the inner wall of the outer cylinder is used for mounting the inner magnet mounting part of the stator and the inner magnet group of the stator.
The permanent magnet suspension bearing rotor is characterized in that the inner cylinder is made of pure iron, low-carbon steel, iron-silicon alloy, iron-aluminum alloy, iron-silicon-aluminum alloy, nickel-iron alloy or iron-cobalt alloy.
According to the permanent magnet suspension bearing rotor disclosed by the application, further, the positioning sleeve is further arranged outside the inner cylinder of the equipment rotating shaft, and the sliding bearing is arranged on the positioning sleeve.
The permanent magnet suspension bearing rotor disclosed by the application is further characterized in that the inner wall of the inner cylinder is connected with the equipment rotating shaft and then fixed by using a key.
Drawings
The foregoing and/or other advantages of the present application will become more apparent and more readily appreciated from the detailed description taken in conjunction with the following drawings, which are meant to be illustrative only and not limiting of the application, wherein:
FIG. 1 is a schematic diagram of a permanent magnet suspension bearing rotor according to one embodiment of the present application;
FIG. 2 is a schematic cross-sectional view of a permanent magnet suspension bearing rotor according to one embodiment of the present application;
FIG. 3 is a schematic illustration of a permanent magnet suspension bearing rotor and a first magnet assembly of an embodiment;
FIG. 4 is a schematic illustration of a permanent magnet suspension bearing rotor and a third magnet assembly according to one embodiment;
FIG. 5 is a schematic diagram of a permanent magnet suspension bearing rotor according to one embodiment of the present application;
FIG. 6 is a schematic cross-sectional view of a permanent magnet suspension bearing rotor according to one embodiment of the present application;
FIG. 7 is a schematic view of a permanent magnet suspension bearing rotor splice according to an embodiment of the present application;
FIG. 8 is a schematic diagram of a spliced cross-section of a permanent magnet suspension bearing rotor according to one embodiment of the present application;
FIG. 9 is a schematic diagram of a permanent magnet suspension bearing rotor and rotor magnet assembly of an embodiment;
FIG. 10 is a schematic diagram of a permanent magnet suspension bearing rotor and a permanent magnet suspension bearing rotor of an embodiment;
FIG. 11 is a schematic cross-sectional view of a permanent magnet suspension bearing rotor and a permanent magnet suspension bearing rotor;
FIG. 12 is a schematic illustration of axial bearing capacity of a permanent magnet suspension bearing according to an embodiment of the present application;
fig. 13 is a schematic view illustrating radial bearing capacity of a permanent magnet suspension bearing according to an embodiment of the present application.
In the drawings, the list of components represented by the various numbers is as follows:
1. the permanent magnet suspension bearing comprises a permanent magnet suspension bearing stator, 2, a permanent magnet suspension bearing rotor, 3, a stator external magnet group, 4, a rotor magnet group, 5, a stator internal magnet group, 6, a stator end cover, 7, a support end cover, 8, a rotor end cover, 9, an equipment rotating shaft, 11, an external magnet mounting part, 12, a connecting part, 13, an internal magnet mounting part, 14, a mounting groove, 15, a stator baffle ring, 21, an inner cylinder, 22, a connecting ring, 23, an outer cylinder, 24, a rotor baffle ring, 25, a space formed by the outer wall of the inner cylinder and the inner wall of the outer cylinder, 26 and the inner cavity of the inner cylinder.
Detailed Description
Hereinafter, an embodiment of the permanent magnet suspension bearing rotor of the present application will be described with reference to the accompanying drawings.
The examples described herein are specific embodiments of the present application, which are intended to illustrate the inventive concept, are intended to be illustrative and exemplary, and should not be construed as limiting the application to the embodiments and scope of the application. In addition to the embodiments described herein, those skilled in the art can adopt other obvious solutions based on the disclosure of the claims and specification, including those adopting any obvious substitutions and modifications to the embodiments described herein.
The drawings in the present specification are schematic views, which assist in explaining the concept of the present application, and schematically show the shapes of the respective parts and their interrelationships. Note that, in order to clearly show the structures of the components of the embodiments of the present application, the drawings are not drawn to the same scale. Like reference numerals are used to denote like parts.
Fig. 5-9 illustrate a permanent magnet suspension bearing rotor 2 of an embodiment of the application, comprising: an inner cylinder 21, a connecting ring 22, an outer cylinder 23, and a rotor magnet group 4;
the inner cavity 26 of the inner cylinder is used for installing the equipment rotating shaft 9; the inner ring of the connecting ring 22 is connected with the first end part of the inner cylinder 21, the outer ring of the connecting ring 22 is connected with the first end part of the outer cylinder 23, and the inner cylinder 21, the connecting ring 22 and the outer cylinder 23 are coaxially arranged; the rotor magnet group 4 comprises at least one rotor magnet unit, wherein the rotor magnet unit is an integrated magnet with an annular structure, or the magnet unit is a magnet with an annular structure spliced by magnetic sheets; the rotor magnet group 4 is fixedly mounted on the outer cylinder 23. Also shown in fig. 9 is a rotor end cap 8, which functions to fix the axial position of the rotor magnet unit. Fig. 7 and 8 show two sets of inner barrel 21, connecting ring 22, outer barrel 23 arranged in mirror image. Fig. 9 shows the mounting of the rotor magnet assembly 4 and the rotor end cap 8.
In a further preferred embodiment of the permanent magnet suspension bearing rotor 2, as shown in fig. 6, a rotor stop ring 24 is further included, the rotor stop ring 24 being fixedly connected to the second end of the outer cylinder 23.
In a further preferred embodiment of the permanent magnet suspension bearing rotor 2, the rotor magnet units are magnetized in radial direction, and adjacent rotor magnet units have opposite poles.
In a further preferred embodiment of the permanent magnet suspension bearing rotor 2, the space 25 formed by the outer wall of the inner cylinder and the inner wall of the outer cylinder is used for mounting the inner magnet mounting part of the stator and the stator inner magnet pack 5.
In a further preferred embodiment of the permanent magnet suspension bearing rotor 2, the inner cylinder 21 is made of pure iron, mild steel, iron-silicon alloy, iron-aluminum alloy, iron-silicon-aluminum alloy, nickel-iron alloy or iron-cobalt alloy.
In a further preferred embodiment of the permanent-magnet suspension bearing rotor 2, the device shaft 9 is also provided with a positioning sleeve outside the inner cylinder 21, on which sleeve a sliding bearing is mounted.
In a further preferred embodiment of the permanent magnet suspension bearing rotor 2, the inner wall of the inner cylinder 21 is fixed by means of a key after connection with the device spindle 9.
Fig. 1-4 show a permanent magnet suspension bearing stator 1 comprising: an outer magnet mounting part 11, a stator outer magnet group 3, an inner magnet mounting part 13, and a stator inner magnet group 5;
the external magnet mounting part 11 is a cylindrical structure as shown in fig. 1; as shown in fig. 3, the stator external magnet group 3 includes at least one external magnet unit, which is an integral magnet of a ring structure, or which is a magnet of a ring structure spliced by magnetic sheets; the stator external magnet group 3 is mounted on the external magnet mounting portion 11; the internal magnet mounting part 13 has a cylindrical structure as shown in fig. 1; or the cross section of the inner magnet mounting part 13 is of an arc-shaped structure; the inner magnet mounting part 13 is fixed in the inner cavity of the outer magnet mounting part 11 through the connecting part 12; as shown in fig. 4, the stator internal magnet assembly 5 is fixedly connected to the internal magnet mounting part 13.
In a further preferred permanent magnet suspension bearing stator 1, the inner magnet mounting part 13 is provided with a magnet mounting groove 14, and the stator inner magnet group 5 is fixed in the mounting groove 14.
In a further preferred permanent magnet suspension bearing stator 1, the stator inner magnet group 5 comprises at least one stator inner magnet unit; the magnetizing direction of the stator internal magnet units is radial magnetizing, and the magnetic poles of the adjacent stator internal magnet units are opposite.
In a further preferred permanent magnet suspension bearing stator 1, the direction of magnetization of the outer magnet units is radial magnetization, adjacent outer magnet units being opposite poles.
In the further preferred permanent magnet suspension bearing stator 1, the connection portion 12 is provided at a position in the middle of the external magnet mounting portion 11, and the stator stopper ring 15 is provided at a position of the connection portion 12 close to the external magnet mounting portion 11.
In a further preferred permanent magnet suspension bearing stator 1, the outer magnet mounting portion 11 is a magnetically conductive metallic material; the inner magnet mounting part 13 is made of a non-magnetic conductive metal material; the connection portion 12 is a non-magnetically conductive metallic material.
In a further preferred permanent magnet suspension bearing stator 1, a stator end cap 6 is further included, the stator end cap 6 being fixed outside the stator external magnet group 3 for fixing the stator external magnet group 3 to the external magnet mounting portion 11.
In a further preferred permanent magnet suspension bearing stator 1, a support end cap 7 is further included, the support end cap 7 being fixed outside the stator inner magnet group 5 for fixing the stator inner magnet group 5 to the inner magnet mounting portion 13.
As shown in fig. 10 and 11, a complete permanent magnet suspension bearing comprises a permanent magnet suspension bearing stator and two permanent magnet suspension bearing rotors, when the permanent magnet suspension bearing is installed, one of the permanent magnet suspension bearing rotors is firstly installed on the rotating shaft of the device, then the permanent magnet suspension bearing stator is sleeved into the rotating shaft of the device, the internal magnet installation part and the internal magnet group 5 of the stator are inserted into the space formed by the outer wall of the inner cylinder of the permanent magnet suspension bearing rotor and the inner wall of the outer cylinder, and finally the second permanent magnet suspension bearing rotor is installed on the rotating shaft of the device.
The principle of axial bearing of the permanent magnet suspension bearing is described with reference to fig. 12, wherein the stator external magnet group is composed of external magnet units, the magnetizing directions of the external magnet units are radial magnetizing, and the magnetic poles of the adjacent external magnet units are opposite. The magnetizing direction of the rotor magnet units is radial magnetizing, and the magnetic poles of the adjacent rotor magnet units are opposite; the opposite outer magnet units and the rotor magnet units are opposite in polarity. When the rotor moves axially, the attractive force generated by the outer magnet units and the rotor magnet units which are opposite to each other promotes the rotor to return to the original position.
The principle of the permanent magnet suspension bearing realizing radial load is described with reference to fig. 13, wherein the stator inner magnet group 5 comprises at least one stator inner magnet unit; the magnetizing direction of the stator internal magnet units is radial magnetizing, and the magnetic poles of the adjacent stator internal magnet units are opposite. The inner cylinder of the permanent magnet suspension bearing rotor is made of pure iron, low carbon steel, iron-silicon alloy, iron-aluminum alloy, iron-silicon-aluminum alloy, nickel-iron alloy or iron-cobalt alloy. The magnetic attraction force generated between the magnet unit inside the stator and the inner cylinder provides radial supporting force of the rotating shaft of the equipment.
The above disclosed features are not limited to the disclosed combinations with other features, and other combinations between features can be made by those skilled in the art according to the purpose of the application to achieve the purpose of the application.
Claims (4)
1. A permanent magnet suspension bearing rotor comprising: the rotor comprises an inner cylinder, a connecting ring, an outer cylinder and a rotor magnet group; the inner cavity of the inner cylinder is used for installing an equipment rotating shaft; the inner ring of the connecting ring is connected with the first end part of the inner cylinder, the outer ring of the connecting ring is connected with the first end part of the outer cylinder, and the inner cylinder, the connecting ring and the outer cylinder are coaxially arranged; the rotor magnet group comprises at least one rotor magnet unit, wherein the rotor magnet unit is an integrated magnet with an annular structure, or the magnet unit is a magnet with an annular structure spliced by magnetic sheets; the rotor magnet group is fixedly arranged on the outer cylinder;
the magnetizing direction of the rotor magnet units is radial magnetizing, and the magnetic poles of the adjacent rotor magnet units are opposite;
the space formed by the outer wall of the inner cylinder and the inner wall of the outer cylinder is used for installing an internal magnet installation part of the stator and an internal magnet group of the stator;
the inner cylinder is made of pure iron, low carbon steel, iron-silicon alloy, iron-aluminum alloy, iron-silicon-aluminum alloy, nickel-iron alloy or iron-cobalt alloy.
2. The permanent magnet suspension bearing rotor of claim 1 further comprising a rotor stop ring fixedly attached to the second end of the outer barrel.
3. The permanent magnet suspension bearing rotor according to claim 1, wherein the equipment shaft is further provided with a positioning sleeve outside the inner cylinder, and a sliding bearing is arranged on the positioning sleeve.
4. The permanent magnet suspension bearing rotor according to claim 1, wherein the inner wall of the inner cylinder and the apparatus shaft are fixed by a key after being connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811461270.7A CN109281937B (en) | 2018-12-02 | 2018-12-02 | Permanent magnet suspension bearing rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811461270.7A CN109281937B (en) | 2018-12-02 | 2018-12-02 | Permanent magnet suspension bearing rotor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109281937A CN109281937A (en) | 2019-01-29 |
| CN109281937B true CN109281937B (en) | 2023-10-27 |
Family
ID=65174344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811461270.7A Active CN109281937B (en) | 2018-12-02 | 2018-12-02 | Permanent magnet suspension bearing rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109281937B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1009608A (en) * | 1949-02-01 | 1952-06-03 | Thomson Houston Comp Francaise | New magnetic bearings |
| US4652780A (en) * | 1985-01-31 | 1987-03-24 | Kabushiki Kaisha Toshiba | Magnetic bearing device |
| CN101979888A (en) * | 2010-10-06 | 2011-02-23 | 潘家烺 | Permanent magnetic energy suspension bearing capable of being combined with common rotating shaft bearing to eliminate bearing capacity |
| CN102588434A (en) * | 2011-01-11 | 2012-07-18 | 张平 | Permanent magnet suspension bearing and installation structure thereof |
| CN102588433A (en) * | 2011-01-11 | 2012-07-18 | 张平 | Permanent magnet suspension bearing and installation structure thereof |
| CN105186830A (en) * | 2015-08-28 | 2015-12-23 | 迈格钠磁动力股份有限公司 | Magnet-to-magnet permanent magnetic synchronous coupler |
| CN106369051A (en) * | 2016-09-26 | 2017-02-01 | 北京航空航天大学 | Protection device of magnetic suspension bearing |
| KR20170123595A (en) * | 2017-10-26 | 2017-11-08 | 한승주 | Split Supercharger |
| CN107965521A (en) * | 2017-12-20 | 2018-04-27 | 邢和海 | Radial permanent magnet magnetic suspension bearing |
| CN209083816U (en) * | 2018-12-02 | 2019-07-09 | 迈格钠磁动力股份有限公司 | A kind of permanent-magnet suspension bearing rotor |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1157545C (en) * | 2000-10-25 | 2004-07-14 | 李国坤 | Magnetic suspension bearing |
| CN104747596B (en) * | 2013-12-30 | 2017-06-30 | 李国坤 | There is fulcrum without friction radial permanent magnet suspension bearing |
-
2018
- 2018-12-02 CN CN201811461270.7A patent/CN109281937B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1009608A (en) * | 1949-02-01 | 1952-06-03 | Thomson Houston Comp Francaise | New magnetic bearings |
| US4652780A (en) * | 1985-01-31 | 1987-03-24 | Kabushiki Kaisha Toshiba | Magnetic bearing device |
| CN101979888A (en) * | 2010-10-06 | 2011-02-23 | 潘家烺 | Permanent magnetic energy suspension bearing capable of being combined with common rotating shaft bearing to eliminate bearing capacity |
| CN102588434A (en) * | 2011-01-11 | 2012-07-18 | 张平 | Permanent magnet suspension bearing and installation structure thereof |
| CN102588433A (en) * | 2011-01-11 | 2012-07-18 | 张平 | Permanent magnet suspension bearing and installation structure thereof |
| CN105186830A (en) * | 2015-08-28 | 2015-12-23 | 迈格钠磁动力股份有限公司 | Magnet-to-magnet permanent magnetic synchronous coupler |
| CN106369051A (en) * | 2016-09-26 | 2017-02-01 | 北京航空航天大学 | Protection device of magnetic suspension bearing |
| KR20170123595A (en) * | 2017-10-26 | 2017-11-08 | 한승주 | Split Supercharger |
| CN107965521A (en) * | 2017-12-20 | 2018-04-27 | 邢和海 | Radial permanent magnet magnetic suspension bearing |
| CN209083816U (en) * | 2018-12-02 | 2019-07-09 | 迈格钠磁动力股份有限公司 | A kind of permanent-magnet suspension bearing rotor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109281937A (en) | 2019-01-29 |
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