CN2414249Y - Magnetic suspension bearing device - Google Patents
Magnetic suspension bearing device Download PDFInfo
- Publication number
- CN2414249Y CN2414249Y CN 00200759 CN00200759U CN2414249Y CN 2414249 Y CN2414249 Y CN 2414249Y CN 00200759 CN00200759 CN 00200759 CN 00200759 U CN00200759 U CN 00200759U CN 2414249 Y CN2414249 Y CN 2414249Y
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- CN
- China
- Prior art keywords
- stator
- rotor
- magnetic suspension
- joining portion
- bearing
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- 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.)
- Expired - Lifetime
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Abstract
The utility model relates to a magnetic suspension bearing device arranged in a high-speed rotary device which comprises a bearing seat, a stator and a rotor. The stator is provided with a set of coils and arranged on the bearing seat; the rotor is provided with a rotary shaft. The magnetic suspension bearing device comprises a rotary shaft connecting part, and a stator connecting part, wherein, the rotary shaft connecting part is fixed on the outer side of the rotary shaft circularly in a protruding shape, and the rotor connecting part is fixed on the inner side of the stator circularly in a concave shape. The utility model uses non-contact magnetic force to control the position of the rotor so as to prevent friction, lower noise, vibration and power consumption, enhance rotary speed and the service life of the bearing, and reduce manufacture cost.
Description
The utility model refers to a kind of magnetic suspension shaft bearing apparatus especially relevant for a kind of bearing means.
Support the bearing of rotor rotation, known mode has employing sleeve bearing (sleeve bearing) as shown in Figure 1.At radial direction a pair of sleeve 10 is installed, in rotor when rotation, is because of contact bearing, so generation friction, noise and vibration, the working life that this will increase electric power and consume and reduce bearing, and because of improving rotating speed, in the application of vacuum system, the slow-speed of revolution can't be satisfied the high equipment needs of degree of vacuum.In addition, because of the lubricant oil between rotor and the bearing might be extruded out when rotor rotates, so also can't satisfy for example high environmental requirement of cleanliness such as dust free room.
At problems such as above-mentioned friction, rotating speed, working life, cleanliness, utilize the magnetic suspension phenomenon to support the magnetic suspension bearing of rotor to be applied on the industry widely in recent years in the non-contact mode.Non-frictional property by magnetic suspension bearing improves rotational speed, for example can be applicable to needs to utilize high-revolving vacuum equipment to reach the occasion of high vacuum state in the semiconductor manufacturing facility or can be applicable on the fan motor of sink in the computer system, by the high speed rotating of fan motor to improve thermoconvection efficient.Be to support rotor need not use lubricant oil because of magnetic suspension bearing simultaneously, can avoid the problem of rotor lubricant pollution surrounding environment in rotation process, can be applicable to employed conveyance of the high dust free room of cleanliness or manufacturing equipment by magnetic force.
Fig. 2 is known magnetic bearing structure, be to use in high speed rotating unit, this high speed rotating unit comprises a bearing support 20, dispose one group of coil 30 in a stator 40, this stator 40 is installed on this bearing support 20, and disposing a rotating shaft 50 of forming by permanent magnet in a rotor 60, this rotor 60 is with respect to these stator 40 rotations when these coil 30 energization excitations.Known magnetic bearing structure is made of five groups of bearings, at rotor shaft direction (Z-direction) configuration one group of thrust of forming by permanent magnet (thrust) magnetic suspension bearing 70, respectively dispose one group of radially (radial) magnetic suspension bearing 80 of forming by permanent magnet (Y direction not shown go out) in both sides up and down at radial direction (X-axis, Y direction), adopt five modes of independent control separately.Wherein, rotor 60 is to be undertaken by bearing 80 in the positioning control of radial direction, and when rotor 60 departed from the equilibrium position, the rightabout magnetic repulsion that produces between the permanent magnet pushed back the equilibrium position with rotor 60.The magnetic suspension gap that produces because of magnetic repulsion between rotor 60 and the bearing 70,80, make bearing not contact rotor and keep the balance of rotor, so can eliminate the friction between rotor 60 and the bearing 70,80, noise and vibration that reduction is produced because of friction, power consumption be can not reduce because of there being friction simultaneously, the rotating speed of rotor 60 and the working life of bearing improved.
But the modes of magnetic suspension bearing because of adopting five independently to control separately that this kind is known are being made, are also being needed five processing respectively when assembling, so complex structure is arranged, the problem of manufacture cost increase.
The purpose of this utility model is to provide a kind of magnetic suspension shaft bearing apparatus, utilizes non-contacting magnetic force to control rotor-position, to prevent friction, reduces noise, vibration and power consumption, improves the working life of rotating speed and bearing, and reduces manufacture cost.
In order to achieve the above object, the utility model provides a kind of magnetic suspension shaft bearing apparatus, be arranged in the high speed rotating unit, this high speed rotating unit comprises a bearing support and stator and rotor, stator is provided with one group of coil, this stator is installed on this bearing support, and a rotating shaft is set on the rotor, it is characterized in that: this magnetic suspension shaft bearing apparatus comprises:
One rotating shaft joining portion is to be convex shape around being fixed in this rotating shaft outside;
One stator joining portion is to be invaginated type around being fixed in this stator inboard.
Described magnetic suspension shaft bearing apparatus is characterized in that: this rotating shaft joining portion is made of permanent magnet.
Described magnetic suspension shaft bearing apparatus is characterized in that: this stator joining portion is made of permanent magnet.
The utility model also provides a kind of magnetic suspension shaft bearing apparatus, be arranged in the high speed rotating unit, this high speed rotating unit comprises a bearing support and stator and rotor, stator is provided with one group of coil, this stator is installed on this bearing support, one rotating shaft is set on the rotor, it is characterized in that: this magnetic suspension shaft bearing apparatus comprises:
One rotating shaft joining portion is to be invaginated type around being fixed in this rotating shaft outside;
One stator joining portion is to be convex shape around being fixed in this stator inboard.
Described magnetic suspension shaft bearing apparatus is characterized in that: this rotating shaft joining portion is made of permanent magnet.
Described magnetic suspension shaft bearing apparatus is characterized in that: this stator joining portion is made of permanent magnet.
The utlity model has following advantage:
1, utilizes the formed magnetic suspension of rotor and bearing gap, rotor is not contacted with bearing and keep balance, can prevent the noise and the vibration that cause because of friction.
2, because of not having friction, the working life that can reduce power consumption and improve bearing.
3, make because of simple in structure being easy to, so can reduce manufacture cost.
Preferred embodiment was elaborated as follows shown in the utility model was incited somebody to action in conjunction with the accompanying drawings:
The simple declaration of accompanying drawing drawing:
Fig. 1 is the sectional view of known sleeve bearing structure.
Fig. 2 is the sectional view of known magnetic bearing structure.
Fig. 3 is the utility model one embodiment's a structure sectional view.
Fig. 4 acts on epitrochanterian schematic representation for the magnetic repulsion that is produced between the foregoing description shaft joining portion of the present utility model and the stator joining portion.
Fig. 5 is another an embodiment's of the present utility model structure sectional view.
Fig. 6 acts on epitrochanterian schematic representation for the magnetic repulsion that produces between the foregoing description shaft joining portion of the present utility model and the stator joining portion.
As shown in Figure 3, a preferred embodiment of the present utility model, it is a kind of magnetic suspension shaft bearing apparatus, use is in high speed rotating unit, this high speed rotating unit comprises a bearing support 100, one group of coil 110 of configuration on a stator 120, this stator 120 is installed on this bearing support 100, dispose a rotating shaft 130 in a rotor 140, this rotor 140 is with respect to these stator 120 rotations when these coil 110 energization excitations, and wherein this magnetic suspension shaft bearing apparatus comprises: a rotating shaft joining portion 150 is convex shape around being fixed in this rotating shaft 130 outsides, one stator joining portion 160 is invaginated type around being fixed in this stator inboard.
In the present embodiment, rotating shaft joining portion 150 and stator joining portion 160 both because of magnetic repulsion across certain intervals, when rotor 140 depart from the equilibrium position towards stator joining portion 160 near the time, as shown in Figure 4, because of magnetic repulsion and the distance between the two are inversely proportional to the magnetic repulsion F that is produced between rotating shaft joining portion 150 and the stator joining portion 160
R1To become big, make the component F of radial direction
X1Rotor 140 is pushed back the equilibrium position of radial direction, simultaneously the component F of rotor shaft direction
Y1Also rotor 140 is pushed back the equilibrium position of rotor shaft direction.
Another preferred embodiment of the present utility model as shown in Figure 5, it is another kind of magnetic suspension shaft bearing apparatus, use is in high speed rotating unit, this high speed rotating unit comprises a bearing support 200, dispose one a group of coil 210 and a stator 220, this stator 220 is installed on this bearing support 200, and dispose a rotating shaft 230 in a rotor 240, this rotor 240 is with respect to these stator 220 rotations when these coil 210 energization excitations, this magnetic suspension shaft bearing apparatus comprises: a rotating shaft joining portion 250, be to be invaginated type around being fixed in this rotating shaft 230 outsides, a stator joining portion 260 is to be convex shape around being fixed in this stator 260 inboards.
In the present embodiment, rotating shaft joining portion 250 and stator joining portion 260 both because of magnetic repulsion across certain intervals, when rotor 240 depart from the equilibrium position towards stator joining portion 260 near the time, as shown in Figure 6, because of magnetic repulsion and the distance of the two are inversely proportional to the magnetic repulsion F that is produced between rotating shaft joining portion 250 and the stator joining portion 260
R2To become big, make the component F of radial direction
X2Rotor 240 is pushed back the equilibrium position of radial direction, simultaneously the component F of rotor shaft direction
Y2Also rotor 240 is pushed back the equilibrium position of rotor shaft direction.
Claims (6)
1, a kind of magnetic suspension shaft bearing apparatus is arranged in the high speed rotating unit, and this high speed rotating unit comprises a bearing support and stator and rotor, stator is provided with one group of coil, this stator is installed on this bearing support, and a rotating shaft is set on the rotor, it is characterized in that: this magnetic suspension shaft bearing apparatus comprises:
One rotating shaft joining portion is to be convex shape around being fixed in this rotating shaft outside;
One stator joining portion is to be invaginated type around being fixed in this stator inboard.
2, magnetic suspension shaft bearing apparatus as claimed in claim 1 is characterized in that: this rotating shaft joining portion is made of permanent magnet.
3, magnetic suspension shaft bearing apparatus as claimed in claim 1 is characterized in that: this stator joining portion is made of permanent magnet.
4, a kind of magnetic suspension shaft bearing apparatus is arranged in the high speed rotating unit, and this high speed rotating unit comprises a bearing support and stator and rotor, stator is provided with one group of coil, this stator is installed on this bearing support, and a rotating shaft is set on the rotor, it is characterized in that: this magnetic suspension shaft bearing apparatus comprises:
One rotating shaft joining portion is to be invaginated type around being fixed in this rotating shaft outside;
One stator joining portion is to be convex shape around being fixed in this stator inboard.
5, magnetic suspension shaft bearing apparatus as claimed in claim 4 is characterized in that: this rotating shaft joining portion is made of permanent magnet.
6, magnetic suspension shaft bearing apparatus as claimed in claim 4 is characterized in that: this stator joining portion is made of permanent magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00200759 CN2414249Y (en) | 2000-01-24 | 2000-01-24 | Magnetic suspension bearing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00200759 CN2414249Y (en) | 2000-01-24 | 2000-01-24 | Magnetic suspension bearing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2414249Y true CN2414249Y (en) | 2001-01-10 |
Family
ID=33570147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00200759 Expired - Lifetime CN2414249Y (en) | 2000-01-24 | 2000-01-24 | Magnetic suspension bearing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2414249Y (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100385130C (en) * | 2004-07-16 | 2008-04-30 | 台达电子工业股份有限公司 | Low wear rotary actuator |
| CN100444060C (en) * | 2005-01-27 | 2008-12-17 | 山东大学 | Magnetic suspension bearing monitoring-controlling integrating device |
| CN102148546A (en) * | 2011-01-26 | 2011-08-10 | 龙梅 | Special motor for lifting table of special digital printer for printing plastic product |
| CN103618422A (en) * | 2013-12-23 | 2014-03-05 | 中国航天空气动力技术研究院 | Electromagnetic drive fan device |
| WO2015035871A1 (en) * | 2013-09-13 | 2015-03-19 | 珠海格力节能环保制冷技术研究中心有限公司 | Magnetic suspension bearing and centrifugal compressor |
| CN104439301A (en) * | 2014-12-02 | 2015-03-25 | 华侨大学 | Rotary ultrasonic spindle supported by magnetic-suspension bearing |
| CN105352466A (en) * | 2015-12-14 | 2016-02-24 | 珠海格力节能环保制冷技术研究中心有限公司 | Axial displacement detection device and method and magnetic suspension bearing |
| WO2017097010A1 (en) * | 2015-12-11 | 2017-06-15 | 珠海格力节能环保制冷技术研究中心有限公司 | Magnetic bearing frame and magnetic bearing |
| CN110185639A (en) * | 2019-05-20 | 2019-08-30 | 宁波生久散热科技有限公司 | Novel magnetically levitated radiator fan |
| CN110855028A (en) * | 2019-12-13 | 2020-02-28 | 饶冰 | Magnetic suspension fan device |
-
2000
- 2000-01-24 CN CN 00200759 patent/CN2414249Y/en not_active Expired - Lifetime
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100385130C (en) * | 2004-07-16 | 2008-04-30 | 台达电子工业股份有限公司 | Low wear rotary actuator |
| CN100444060C (en) * | 2005-01-27 | 2008-12-17 | 山东大学 | Magnetic suspension bearing monitoring-controlling integrating device |
| CN102148546A (en) * | 2011-01-26 | 2011-08-10 | 龙梅 | Special motor for lifting table of special digital printer for printing plastic product |
| US10190628B2 (en) | 2013-09-13 | 2019-01-29 | Green Refrigeration Equipment Engineering Research Center Of Zhuhai Gree Co., Ltd. | Magnetic bearing and centrifugal compressor |
| WO2015035871A1 (en) * | 2013-09-13 | 2015-03-19 | 珠海格力节能环保制冷技术研究中心有限公司 | Magnetic suspension bearing and centrifugal compressor |
| CN103618422A (en) * | 2013-12-23 | 2014-03-05 | 中国航天空气动力技术研究院 | Electromagnetic drive fan device |
| CN103618422B (en) * | 2013-12-23 | 2016-08-17 | 中国航天空气动力技术研究院 | Electromagnetic drive fan device |
| CN104439301A (en) * | 2014-12-02 | 2015-03-25 | 华侨大学 | Rotary ultrasonic spindle supported by magnetic-suspension bearing |
| WO2017097010A1 (en) * | 2015-12-11 | 2017-06-15 | 珠海格力节能环保制冷技术研究中心有限公司 | Magnetic bearing frame and magnetic bearing |
| CN105352466A (en) * | 2015-12-14 | 2016-02-24 | 珠海格力节能环保制冷技术研究中心有限公司 | Axial displacement detection device and method and magnetic suspension bearing |
| CN105352466B (en) * | 2015-12-14 | 2018-03-20 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of device for detecting axial displacement, method and magnetic suspension bearing |
| CN110185639A (en) * | 2019-05-20 | 2019-08-30 | 宁波生久散热科技有限公司 | Novel magnetically levitated radiator fan |
| CN110855028A (en) * | 2019-12-13 | 2020-02-28 | 饶冰 | Magnetic suspension fan device |
| CN110855028B (en) * | 2019-12-13 | 2024-06-11 | 饶冰 | Magnetic suspension fan device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |