CN201860272U - High linear giant magnetostrictive driver based on permanent-magnet bias - Google Patents
High linear giant magnetostrictive driver based on permanent-magnet bias Download PDFInfo
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- CN201860272U CN201860272U CN2010205408724U CN201020540872U CN201860272U CN 201860272 U CN201860272 U CN 201860272U CN 2010205408724 U CN2010205408724 U CN 2010205408724U CN 201020540872 U CN201020540872 U CN 201020540872U CN 201860272 U CN201860272 U CN 201860272U
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- bias
- giant magnetostrictive
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Abstract
The utility model discloses a high linear giant magnetostrictive driver based on permanent-magnet bias. The high linear giant magnetostrictive driver comprises a permanent-magnet bias magnetic circuit, an excitation magnetic circuit and an output system and the like. The high linear giant magnetostrictive driver is characterized in that two small permanent-magnet rings and a large permanent-magnet ring are adopted to provide a bias magnetic field; the magnitude and the position of a permanent magnet are reasonably arranged in the magnetic circuit so as to obtain a proper bias magnetic field with good uniformity; therefore, the input energy consumption of the driver is greatly reduced, the heat generation is reduced, and the volume of the driver is also greatly reduced. Meanwhile, the bias linearity generated by the permanent magnet also hardly differs from the bias of a direct current coil.
Description
Technical field
The utility model relates to a kind of high linear super-magnetostrictive drive based on permanent magnet bias.
Background technology
Giant magnetostrictive material has advantages such as fast, the flexible dependent variable of reaction speed is big, dynamic response is wide, and the super-magnetostrictive drive that the utilization giant magnetostrictive material is made can be applied to micrometric displacement control field well.The magnetic field application system of present super-magnetostrictive drive has electromagnetic type and composite type dual mode, electromagnetic type is exactly that bias magnetic field and excitation field are all produced by coil, the good linearity in the magnetic field of Chan Shenging like this, magnetic field in giant magnetostrictive rod is also even relatively, provided by coil but the shortcoming of electromagnetic type is a bias magnetic field, need coil turn many like this, volume is big, and caloric value is also big, and caloric value has also had a strong impact on the output characteristic of driver.Composite type is exactly that bias magnetic field is provided by permanent magnet, excitation field is provided by coil, there are not the many bias coils of the number of turn, volume is less relatively, caloric value is also few, but because knockdown bias magnetic field is provided by permanent magnet, the bias magnetic field of so relative electromagnetic actuator in magnetostrictive material is not very even, so directly influenced the linearity of super-magnetostrictive drive output.Present existing composite type super-magnetostrictive drive does not all have the uniformity of careful consideration bias magnetic field, and therefore, the utility model patent just is intended to develop a kind of high linear super-magnetostrictive drive based on permanent magnet bias.
The utility model content
The purpose of this utility model is to provide a kind of high linear super-magnetostrictive drive based on permanent magnet bias, substitute the direct current biasing coil with permanent-magnetic clamp and greatly reduce volume, input energy consumption, reduce caloric value, and by size and the position of reasonable distribution permanent-magnetic clamp in magnetic circuit, can make magnetic field size and uniformity in the giant magnetostrictive rod material reach best, thereby improve the linear properties of super-magnetostrictive drive.
For achieving the above object, the utility model adopts following technical proposals: a kind of high linear super-magnetostrictive drive based on permanent magnet bias, comprise the permanent magnet bias system that forms by magnetic conduction base, permanent-magnetic clamp, magnetic guiding loop, magnetic conduction pressure ring, magnetic inductive block, giant magnetostrictive rod, the excitation field system that forms by described magnetic conduction base, magnetic guiding loop, magnetic conduction pressure ring, coil and magnetic inductive block.Join the output system that IOB is formed by the sleeve cunning in the loam cake.It is characterized in that described permanent-magnetic clamp is two little permanent-magnetic clamps and a big permanent-magnetic clamp, described magnetic guiding loop has two, a described little permanent-magnetic clamp, magnetic guiding loop, big permanent-magnetic clamp, another magnetic guiding loop, another little permanent-magnetic clamp and magnetic conduction pressure ring are stacked on the base from bottom to up successively, rely on permanent-magnetic clamp magnetic force and tight one-tenth cylindrical body, make big permanent-magnetic clamp be in this cylindrical body centre position, and two little permanent-magnetic clamps are in the both ends up and down of this cylindrical body, giant magnetostrictive rod is positioned at the hub of a spool hole, coil, magnetic inductive block is inserted in this cylindrical body from bottom to up successively, sleeve is packed in the centre bore of loam cake, and IOB places on the magnetic inductive block and can move freely in sleeve; Described loam cake is fixedlyed connected with the magnetic conduction pressure ring by screw.
The utility model has following conspicuous substantive distinguishing features and advantage compared with prior art: the utility model adopts permanent-magnetic clamp to substitute the direct current biasing coil, greatly reduces volume, reduces energy consumption simultaneously, has reduced heating.Adopt big permanent-magnetic clamp in the centre, and two ends dispose little permanent-magnetic clamp, make magnetic field even, improve the linear properties of super-magnetostrictive drive.
Description of drawings
Fig. 1 is the structural representation that all permanent magnets are uniformly distributed in the driver magnetic circuit.
Fig. 2 is the magnetic field distribution figure on the magnetostrictive material axis in the schematic diagram of Fig. 1.
Fig. 3 is the structural representation that all permanent magnets occupy driver magnetic circuit centre position.
Fig. 4 is the magnetic field distribution figure on the magnetostrictive material axis in the schematic diagram of Fig. 3.
Fig. 5 is the structural representation of driver of the present utility model.
Fig. 6 is the magnetic field distribution figure on the magnetostrictive material axis in the driver of the present utility model.
Embodiment
The utility model accompanying drawings is as follows: referring to Fig. 1, in existing technology, the biasing magnetic circuit of forming by magnetic conduction base 1, the bead 2 that is uniformly distributed in magnetic circuit, magnetic guiding loop 3, magnetic inductive block 6, giant magnetostrictive rod 5, when permanent magnet is uniformly distributed in the magnetic circuit, can see the magnetic field intensity minimum of bar axis midpoint by Fig. 2, uniformity is poor.
Referring to Fig. 3, in existing technology, by magnetic conduction base 1, magnetic guiding loop 2, occupy the biasing magnetic circuit that permanent magnet 3, magnetic inductive block 6, giant magnetostrictive rod 5 in the middle of the magnetic circuit are formed fully, when permanent magnet occupy the magnetic circuit centre position fully, as seen from Figure 4, the magnetic field intensity maximum of bar axis midpoint, the linear Fig. 2 relatively of global magnetic field will get well, but relative Fig. 2 is little for magnitude of field intensity, so as can be seen permanent magnet position and size is carried out suitable optimization and can make magnitude of field intensity and the uniformity that bar obtains reach best.
Preferred embodiment of the present utility model: referring to Fig. 5, this is based on the high linear super-magnetostrictive drive of permanent magnet bias, comprise the permanent magnet bias system that forms by magnetic conduction base, permanent-magnetic clamp, magnetic guiding loop, magnetic conduction pressure ring, magnetic inductive block, giant magnetostrictive rod, the excitation field system that forms by described magnetic conduction base, magnetic guiding loop, magnetic conduction pressure ring, coil and magnetic inductive block.Join the output system that IOB is formed by the sleeve cunning in the loam cake.It is characterized in that described permanent-magnetic clamp is two little permanent-magnetic clamps and a big permanent-magnetic clamp, described magnetic guiding loop has two, a described little permanent-magnetic clamp, magnetic guiding loop, big permanent-magnetic clamp, another magnetic guiding loop, another little permanent-magnetic clamp and magnetic conduction pressure ring are stacked on the base from bottom to up successively, rely on permanent-magnetic clamp magnetic force and tight one-tenth cylindrical body, make big permanent-magnetic clamp be in this cylindrical body centre position, and two little permanent-magnetic clamps are in the both ends up and down of this cylindrical body, giant magnetostrictive rod is positioned at the hub of a spool hole, coil, magnetic inductive block is inserted in this cylindrical body from bottom to up successively, sleeve is packed in the centre bore of loam cake, and IOB places on the magnetic inductive block and can move freely in sleeve; Described loam cake is fixedlyed connected with the magnetic conduction pressure ring by screw.Global magnetic field intensity size in the bar occupy between Fig. 2 and Fig. 4 as seen from Figure 6, but the relative Fig. 2 of the uniformity of Distribution of Magnetic Field and Fig. 4 will get well.
Claims (1)
1. high linear super-magnetostrictive drive based on permanent magnet bias, comprise by magnetic conduction base (1), permanent-magnetic clamp, magnetic guiding loop (3), magnetic conduction pressure ring (11), magnetic inductive block (7), the permanent magnet bias system that giant magnetostrictive rod (5) is formed, by described magnetic conduction base (1), magnetic guiding loop (3), magnetic conduction pressure ring (11), the excitation field system that coil (6) and magnetic inductive block (7) are formed, join the output system that IOB (10) is formed by the cunning of the sleeve (9) in the loam cake (8), it is characterized in that described permanent-magnetic clamp (2), (4) be two little permanent-magnetic clamps (2) and a big permanent-magnetic clamp (4), described magnetic guiding loop (3) has two, a described little permanent-magnetic clamp (2), magnetic guiding loop (3), big permanent-magnetic clamp (4), another magnetic guiding loop (3), another little permanent-magnetic clamp (2) and magnetic conduction pressure ring (11) are stacked on the base (1) from bottom to up successively, rely on permanent-magnetic clamp (2), (4) magnetic force and tight one-tenth cylindrical body, make big permanent-magnetic clamp (4) be in this cylindrical body centre position, and two little permanent-magnetic clamps (2) are in the both ends up and down of this cylindrical body, giant magnetostrictive rod (5) is positioned at the hub of a spool hole, coil (6), magnetic inductive block (7) is inserted in this cylindrical body from bottom to up successively, sleeve (9) is packed in the centre bore of loam cake (8), and IOB (10) places on the magnetic inductive block (7) and can move freely in sleeve (9); Described loam cake (8) is fixedlyed connected with magnetic conduction pressure ring (11) by screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205408724U CN201860272U (en) | 2010-09-21 | 2010-09-21 | High linear giant magnetostrictive driver based on permanent-magnet bias |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205408724U CN201860272U (en) | 2010-09-21 | 2010-09-21 | High linear giant magnetostrictive driver based on permanent-magnet bias |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201860272U true CN201860272U (en) | 2011-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205408724U Expired - Fee Related CN201860272U (en) | 2010-09-21 | 2010-09-21 | High linear giant magnetostrictive driver based on permanent-magnet bias |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104167954A (en) * | 2014-08-14 | 2014-11-26 | 北京航空航天大学 | Coil-free permanent-magnet-excited linear magnetostrictive actuator |
| CN104218845A (en) * | 2014-08-14 | 2014-12-17 | 北京航空航天大学 | Reversing motion mechanism based on magnetostrictive material |
| CN106122563A (en) * | 2016-08-25 | 2016-11-16 | 吴忠仪表有限责任公司 | High-precision valve door holder feedback device |
| CN106678177A (en) * | 2017-01-05 | 2017-05-17 | 上海应用技术大学 | Controllable compound damping and active vibration reducing magnetofluid bearing |
| CN108435518A (en) * | 2018-03-29 | 2018-08-24 | 内蒙古科技大学 | A kind of small-sized GMA that excitation coil end is set |
| CN109756149A (en) * | 2019-03-23 | 2019-05-14 | 内蒙古科技大学 | A kind of ultra-magnetic telescopic actuation means |
| CN110572075A (en) * | 2019-08-05 | 2019-12-13 | 包头稀土研究院 | Actuator with solenoid providing axial permanent magnetic field |
| CN114696654A (en) * | 2022-03-31 | 2022-07-01 | 哈尔滨工程大学 | Built-in drive magnetic circuit and giant magnetostrictive electroacoustic transducer |
-
2010
- 2010-09-21 CN CN2010205408724U patent/CN201860272U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104218845A (en) * | 2014-08-14 | 2014-12-17 | 北京航空航天大学 | Reversing motion mechanism based on magnetostrictive material |
| CN104218845B (en) * | 2014-08-14 | 2016-05-04 | 北京航空航天大学 | A kind of commutation motion based on magnetostriction materials |
| CN104167954B (en) * | 2014-08-14 | 2016-08-03 | 北京航空航天大学 | A kind of linear magnetostriction driver of coil permanent magnet excitation |
| CN104167954A (en) * | 2014-08-14 | 2014-11-26 | 北京航空航天大学 | Coil-free permanent-magnet-excited linear magnetostrictive actuator |
| CN106122563A (en) * | 2016-08-25 | 2016-11-16 | 吴忠仪表有限责任公司 | High-precision valve door holder feedback device |
| CN106678177B (en) * | 2017-01-05 | 2019-10-25 | 上海应用技术大学 | A kind of controllable composite damping active damping magnetic fluid bearing |
| CN106678177A (en) * | 2017-01-05 | 2017-05-17 | 上海应用技术大学 | Controllable compound damping and active vibration reducing magnetofluid bearing |
| CN108435518A (en) * | 2018-03-29 | 2018-08-24 | 内蒙古科技大学 | A kind of small-sized GMA that excitation coil end is set |
| CN108435518B (en) * | 2018-03-29 | 2024-03-29 | 内蒙古科技大学 | Small GMA with exciting coil end |
| CN109756149A (en) * | 2019-03-23 | 2019-05-14 | 内蒙古科技大学 | A kind of ultra-magnetic telescopic actuation means |
| CN109756149B (en) * | 2019-03-23 | 2024-04-26 | 内蒙古科技大学 | Giant magnetostrictive actuator |
| CN110572075A (en) * | 2019-08-05 | 2019-12-13 | 包头稀土研究院 | Actuator with solenoid providing axial permanent magnetic field |
| CN114696654A (en) * | 2022-03-31 | 2022-07-01 | 哈尔滨工程大学 | Built-in drive magnetic circuit and giant magnetostrictive electroacoustic transducer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110608 Termination date: 20110921 |