CN204099414U - Electric actuation electromagnetic bearing - Google Patents
Electric actuation electromagnetic bearing Download PDFInfo
- Publication number
- CN204099414U CN204099414U CN201420556591.6U CN201420556591U CN204099414U CN 204099414 U CN204099414 U CN 204099414U CN 201420556591 U CN201420556591 U CN 201420556591U CN 204099414 U CN204099414 U CN 204099414U
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- CN
- China
- Prior art keywords
- electromagnetic bearing
- piezoelectric constant
- electromagnet
- bearing shell
- electric actuation
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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 - Fee Related
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Abstract
The utility model discloses a kind of electric actuation electromagnetic bearing, comprise electromagnetic bearing shell, the inwall of electromagnetic bearing shell is provided with the piezoelectric constant of even, symmetric distribution, is provided with U-shaped electromagnet in the inner side of piezoelectric constant, in electromagnetic bearing shell, is provided with levitation axis; Piezoelectric constant is connected with voltage regulating device, and U-shaped electromagnet is connected with regulating current device.The characteristic that the utility model just can stretch after utilizing piezoelectric constant on-load voltage, utilize the voltage of low current to control piezoelectric constant, thus the gap controlled between electromagnet and levitation axis, minimizing of electromagnet internal current can be realized, the electric energy that such electromagnet consumes is just minimum, and piezoelectric constant (when namely not moving) when stable is catabiotic hardly, the power consumption of whole like this electromagnetic bearing is just very little, the temperature rise that significantly can reduce the energy consumption of electromagnetic bearing, improve the resistance to high temperature of electromagnetic bearing, reduce electromagnetic bearing.
Description
Technical field
The utility model relates to electroporation field, especially a kind of electric actuation electromagnetic bearing.
Background technique
At present, known electromagnetic bearing has two large classes, and first: without the current type electromagnetic bearing of permanent magnet bias; Second: the current type electromagnetic bearing having permanent magnet bias.These two kinds have the distance of a common feature electromagnet and axle not change.For traditional electromagnetic bearing, if need electromagnet to have constant active force to levitation axis, along with the change of the spacing of levitation axis and electromagnet, the electric current passing into electromagnet will present nonlinear change, this is comparatively complicated for control, also can cause the undesirable of control effects.In addition along with the increase of spacing, the electric current passing into electromagnet will significantly increase, and this can increase the heating loss of coil, also be unfavorable for the high temperature resistant property of electromagnet while of being unfavorable for energy-conservation.
Summary of the invention
The purpose of this utility model is: provide a kind of electric actuation electromagnetic bearing, and namely the function that it can not only realize conventional electromagnetic bearing adjusts the size of electromagnetic force, also has simultaneously and consumes the few advantage of electric energy when stable state, to overcome the deficiencies in the prior art.
The utility model is achieved in that electric actuation electromagnetic bearing, comprise electromagnetic bearing shell, the inwall of electromagnetic bearing shell is provided with the piezoelectric constant of even, symmetric distribution, is provided with U-shaped electromagnet in the inner side of piezoelectric constant, in electromagnetic bearing shell, is provided with levitation axis; Piezoelectric constant is connected with voltage regulating device, and U-shaped electromagnet is connected with regulating current device.
The magnetic pole of two U-shaped ends of described U-shaped electromagnet is contrary.Such main magnetic circuit just only an electromagnet inside, avoids the coupled interference of multiple electromagnet.
Described piezoelectric constant is fitted together to or is bonded on the inwall of electromagnetic bearing shell, and U-shaped electromagnet is chimeric or be bonded in inside piezoelectric constant.
Owing to have employed technique scheme, compared with prior art, the characteristic that the utility model just can stretch after utilizing piezoelectric constant on-load voltage, utilize the voltage of low current to control piezoelectric constant, thus the gap controlled between electromagnet and levitation axis, minimizing of electromagnet internal current can be realized, the electric energy that such electromagnet consumes is just minimum, and piezoelectric constant (when namely not moving) when stable is catabiotic hardly, the power consumption of whole like this electromagnetic bearing is just very little, significantly can reduce the energy consumption of electromagnetic bearing, improve the resistance to high temperature of electromagnetic bearing, reduce the temperature rise of electromagnetic bearing.The utility model structure is simple, and with low cost, using effect is good.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present utility model.
Embodiment
Embodiment of the present utility model: the structure of electric actuation electromagnetic bearing as shown in Figure 1, comprises electromagnetic bearing shell 1, the inwall of electromagnetic bearing shell 1 is provided with the piezoelectric constant 2 of even, symmetric distribution, and piezoelectric constant 2 is fitted together on the inwall of electromagnetic bearing shell 1; Be provided with U-shaped electromagnet 3 in the inner side of piezoelectric constant 2, U-shaped electromagnet 3 is entrenched in inside piezoelectric constant 2; Levitation axis 4 is provided with in electromagnetic bearing shell 1; Piezoelectric constant 2 is connected with voltage regulating device, and U-shaped electromagnet 3 is connected with regulating current device; The magnetic pole of two U-shaped ends of U-shaped electromagnet 3 is contrary.
In the present embodiment, the Capacity measuring the piezoelectric constant 2 adopted calculates gap length, calculates the voltage be loaded on piezoelectric constant 2 according to gap length, and the electric current in U-shaped electromagnet 3.Then power amplifier is loaded into (piezoelectric constant and electromagnet use two to overlap independently power amplifier) on piezoelectric constant 2 and U-shaped electromagnet 3 here voltage signal, and then Detection capacitance amount size, enter the circulation of control, just can realize the suspension of axle.
Claims (3)
1. an electric actuation electromagnetic bearing, comprise electromagnetic bearing shell (1), it is characterized in that: the piezoelectric constant (2) being provided with even, symmetric distribution on the inwall of electromagnetic bearing shell (1), be provided with U-shaped electromagnet (3) in the inner side of piezoelectric constant (2), in electromagnetic bearing shell (1), be provided with levitation axis (4); Piezoelectric constant (2) is connected with voltage regulating device, and U-shaped electromagnet (3) is connected with regulating current device.
2. electric actuation electromagnetic bearing according to claim 1, is characterized in that: the magnetic pole of two U-shaped ends of described U-shaped electromagnet (3) is contrary.
3. electric actuation electromagnetic bearing according to claim 1, is characterized in that: described piezoelectric constant (2) is chimeric or be bonded on the inwall of electromagnetic bearing shell (1), and U-shaped electromagnet (3) is chimeric or be bonded in piezoelectric constant (2) inner side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420556591.6U CN204099414U (en) | 2014-09-26 | 2014-09-26 | Electric actuation electromagnetic bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420556591.6U CN204099414U (en) | 2014-09-26 | 2014-09-26 | Electric actuation electromagnetic bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204099414U true CN204099414U (en) | 2015-01-14 |
Family
ID=52267844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420556591.6U Expired - Fee Related CN204099414U (en) | 2014-09-26 | 2014-09-26 | Electric actuation electromagnetic bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204099414U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265762A (en) * | 2014-09-26 | 2015-01-07 | 贵州大学 | Electroactive electromagnet bearing |
| CN109854622A (en) * | 2019-03-26 | 2019-06-07 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | A kind of active magnet bearing systems can control shafting radial vibration based on intellectual material |
-
2014
- 2014-09-26 CN CN201420556591.6U patent/CN204099414U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265762A (en) * | 2014-09-26 | 2015-01-07 | 贵州大学 | Electroactive electromagnet bearing |
| CN109854622A (en) * | 2019-03-26 | 2019-06-07 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | A kind of active magnet bearing systems can control shafting radial vibration based on intellectual material |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150114 Termination date: 20200926 |