CN201075848Y - Air cooling temperature control type ultra-magnetic deformation micro displacement driver - Google Patents
Air cooling temperature control type ultra-magnetic deformation micro displacement driver Download PDFInfo
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- CN201075848Y CN201075848Y CNU2007201108945U CN200720110894U CN201075848Y CN 201075848 Y CN201075848 Y CN 201075848Y CN U2007201108945 U CNU2007201108945 U CN U2007201108945U CN 200720110894 U CN200720110894 U CN 200720110894U CN 201075848 Y CN201075848 Y CN 201075848Y
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Abstract
The utility model discloses a gas cooling temperature control ultra-magnetostrictive micro displacement driver which controls a drive device to output displacement through a current and realizes to restrain the temperature rising of the driver and the output of thermal error through a gas cooling temperature control device to improve the control precision of the displacement outputting. The driver of the utility model has the advantages of simple structure, smaller drive current, stable working and good frequency response characteristic. By adopting forced cooling by gas, the utility model can implement long time temperature control and effectively restrain the output of thermal error. A disk spring increases the balance of pre-pressure and a self-centering steel ball can lead an output force to be kept on axis of an output top bar, thus the control precision of the displacement outputting of an actuator can reach a submicron grade and even higher and can adapt various severe working environments. Simultaneously, the utility model also has the advantages of small volume, light weight, large output force and high displacement precision. The utility model can restrain the effects on the displacement outputted by the driver caused by thermal deformation and can be used in the fields like ultraprecise processing and vibration controlling, etc.
Description
Technical field
The utility model relates to drive unit, especially relates to a kind of air cooling temperature control type ultra-magnetostriction microdisplacement driver.
Background technology
Micro-displacement driver has obtained in fields such as ultraprecise processing, robot, fluid machinery, vibration control, sonar systems to use widely, uses more type at present and mainly contains mechanical type, fluid pressure type and piezoelectric type etc.Mechanical type and the frequency response of fluid pressure type driver are lower, and power output is less, and the output displacement is difficult to satisfy high-precision requirement; Though piezoelectric actuator displacement resolution and frequency response are all than higher, it is less to exert oneself, and easily produces electrical breakdown, and can produce drift phenomenon.Ultra-magnetostriction microdisplacement driver has advantages such as big displacement, brute force, fast-response, high reliability, low-voltage driving; But as a kind of electricity (magnetic) machine transducer, the ultra-magnetostriction microdisplacement driver capacity usage ratio is lower, and except a part was converted into mechanical energy output, most of energy dissipated in the heat energy mode.Because the sealing of internal drive space, heat dispersion is poor, and particularly under the big current work state of high frequency, temperature is with fast rise, and hot error is remarkable, but prior art is too complicated to the driver heat error compensation, realizes difficulty.
Summary of the invention
The purpose of this utility model provides a kind of air cooling temperature control type ultra-magnetostriction microdisplacement driver, control the drive unit of output displacement by electric current, and, improve output displacement control precision by air cooling attemperating unit realization inhibition driver temperature rise and the output of hot error.
In order to achieve the above object, the technical scheme that the utility model adopted is:
Comprise base, following cooling chamber, shell, bias coil, drive coil, coil rack, giant magnetostrictive rod, steel ball, go up cooling chamber, cross output push rod, upper end cover, disk spring, precompressed nut.Giant magnetostrictive rod, steel ball and cross output push rod are housed on the small boss of base center, under giant magnetostrictive rod and cross output push rod, outside the straight-bar, coil rack, drive coil, bias coil and the shell of inner wall belt spiral cooling airway is housed successively from inside to outside; Cross output push rod upper straight rod is equipped with disk spring and precompressed nut outward, upper end cover and precompressed nut constitute combination precompressed mechanism, space between coil rack lower end and the base forms down cooling chamber, space between coil rack upper end and the upper end cover forms and last cooling chamber, and following cooling chamber and last cooling chamber are by spiral cooling airway UNICOM.
The utility model is compared the beneficial effect that has with background technology: activation configuration is simple, drive current less (2～4A), working stability, good frequency response (can reach 2000Hz); Employing force air refrigeration can be implemented long-time temperature control, effectively suppresses hot error output; Disk spring has increased the precompressed equilibrium of forces, and self-transverse alignment steel ball can make power output remain on the axis of output push rod, and the displacement of actuator output control precision can reach submicron order even higher like this, and can adapt to various bad working environment.The utility model volume is little, in light weight, power output is big, displacement accuracy is high, can suppress the influence of thermal deformation to driver output displacement, can be used for fields such as ultraprecise processing, vibration control.
Description of drawings
Fig. 1 is based on the little feed drive unit of ultra-magnetic telescopic of air cooling temperature control principle.
Fig. 2 is a coil rack.
Among the figure: 1. base, 2. air admission hole 3. descends cooling chamber, 4. shell, 5. bias coil, 6. drive coil, 7. coil rack, 8. giant magnetostrictive rod, 9. spiral cooling airway, 10. steel ball, 11. steam vents, cooling chamber on 12., 13. cross output push rod, 14. upper end cover, 15. disk springs, 16. precompressed nuts;
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
As shown in Figure 1 and Figure 2, the utility model comprises base 1, following cooling chamber 3, shell 4, bias coil 5, drive coil 6, coil rack 7, giant magnetostrictive rod 8, steel ball 10, goes up cooling chamber 12, cross output push rod 13, upper end cover 14, disk spring 15, precompressed nut 16; Giant magnetostrictive rod 8, steel ball 10 and cross output push rod 13 are housed on base 1 center small boss, outside giant magnetostrictive rod 8 and 9 times straight-bars of cross output push rod, coil rack 7, drive coil 6, bias coil 5 and the shell 4 of inner wall belt spiral cooling airway 9 is housed successively from inside to outside; Cross output push rod 13 upper straight rods are equipped with disk spring 15 and precompressed nut 16 outward, upper end cover 14 and precompressed nut 16 constitute combination precompressed mechanism, space between coil rack 7 lower ends and the base 1 forms down cooling chamber 3, space between coil rack 7 upper ends and the upper end cover 14 forms and last cooling chamber 12, and following cooling chamber 3 passes through spiral cooling airway 9 UNICOMs with last cooling chamber 12.
The air admission hole 2 of the coil rack 7 of inner wall belt spiral cooling airway 9, last cooling chamber 12, following cooling chamber 3, shell lower end and the steam vent 11 of shell upper end constitute the air cooling attemperating unit.
By regulating the precompressed nut 16 in the combination precompressed mechanism, can apply different precompressions to giant magnetostrictive rod 8, giant magnetostrictive rod 8 is under the preferable condition of work, disk spring can make relatively balance of precompression that giant magnetostrictive rod 8 is applied, reduces to export the generation of " stuck " phenomenon of push rod.When passing through drive current in the drive coil 6, under the effect of input current, drive coil 6 will produce driving magnetic field, and giant magnetostrictive rod 8 length are changed.Because 1 pair of giant magnetostrictive rod 8 of base has supporting role, so the length change amount of giant magnetostrictive rod 8 will pass to cross output push rod 13 by steel ball 10, cross output push rod 13 is done externally output, shows as the displacement and the power output of ultra-magnetostriction microdisplacement driver.Steel ball 10 plays the effect of self-centering and transmission power and displacement between giant magnetostrictive rod 8 and cross output push rod 13, further reduce until eliminating the influence that " stuck " phenomenon is brought.When passing to certain constant current in the bias coil, produce bias magnetic field, be used for eliminating the frequency multiplication phenomenon of giant magnetostrictive rod.
Under the input current effect, ultra-magnetostriction microdisplacement driver will produce two parts loss: the ohmic loss of giant magnetostrictive rod 8 hysteresis losses and drive coil 6, bias coil 5.This two parts loss will be come with the form diffusion of heat energy, and the temperature of internal drive will rise rapidly.Giant magnetostrictive rod 8 hysteresis losses will cause mainly that giant magnetostrictive rod 8 temperature raise, because giant magnetostrictive rod 8 refrigerating gases direct and in the spiral cooling airway 9 contact, giant magnetostrictive rod 8 can be the heat transferred refrigerating gas under the effect of the temperature difference.The ohmic loss of bias coil 5 and drive coil 6 will cause mainly that coil temperature raises.Under the effect of the temperature difference, wherein a part of heat will pass to shell 4 and outwards dispel the heat along the conduction radially outward of bias coil 6 and drive coil 6.Another part heat will along bias coil 6 and drive coil 6 axially to two ends conduction, pass to refrigerating gas in cooling chamber 12 and the following cooling chamber 3 by coil rack.Refrigerating gas is forced to send into down cooling chamber 3 by air admission hole 2 by air supply plant, through the spiral cooling airway, by last cooling chamber, is discharged in the air by steam vent 11 at last again.Can transfer to external environment to heat from ultra-magnetostriction microdisplacement driver inside by refrigerating gas like this, whole ultra-magnetostriction microdisplacement driver temperature is remained unchanged substantially, realize suppressing driver temperature rise and thermal deformation errors output, improve output displacement control precision.
Above-mentioned embodiment is used for the utility model of explaining; rather than the utility model limited; in the protection range of spirit of the present utility model and claim, any modification and change to the utility model is made all fall into protection range of the present utility model.
Claims (3)
1. air cooling temperature control type ultra-magnetostriction microdisplacement driver, it is characterized in that: comprise base (1), following cooling chamber (3), shell (4), bias coil (5), drive coil (6), coil rack (7), giant magnetostrictive rod (8), steel ball (10), last cooling chamber (12), cross output push rod (13), upper end cover (14), disk spring (15), precompressed nut (16), on the small boss of base (1) center, giant magnetostrictive rod (8) is housed, steel ball (10) and cross output push rod (13), under giant magnetostrictive rod (8) and cross output push rod (9), outside the straight-bar, the coil rack (7) of inner wall belt spiral cooling airway (9) is housed successively from inside to outside, drive coil (6), bias coil (5) and shell (4); Cross output push rod (13) upper straight rod is equipped with disk spring (15) and precompressed nut (16) outward, upper end cover (14) and precompressed nut (16) constitute combination precompressed mechanism, space between coil rack (7) lower end and the base (1) forms down cooling chamber (3), space between coil rack (7) upper end and the upper end cover (14) forms and last cooling chamber (12), and following cooling chamber (3) passes through spiral cooling airway (9) UNICOM with last cooling chamber (12).
2. air cooling temperature control type ultra-magnetostriction microdisplacement driver according to claim 1, it is characterized in that: the air admission hole (2) of the coil rack (7) of inner wall belt spiral cooling airway (9), last cooling chamber (12), following cooling chamber (3), shell lower end and the steam vent (11) of shell upper end constitute the air cooling attemperating unit.
3. air cooling temperature control type ultra-magnetostriction microdisplacement driver according to claim 1 is characterized in that: upper end cover (14), precompressed nut (16), disk spring (15), cross output push rod (13) and steel ball (10) constitute combination precompressed mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201108945U CN201075848Y (en) | 2007-06-19 | 2007-06-19 | Air cooling temperature control type ultra-magnetic deformation micro displacement driver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201108945U CN201075848Y (en) | 2007-06-19 | 2007-06-19 | Air cooling temperature control type ultra-magnetic deformation micro displacement driver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201075848Y true CN201075848Y (en) | 2008-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201108945U Expired - Lifetime CN201075848Y (en) | 2007-06-19 | 2007-06-19 | Air cooling temperature control type ultra-magnetic deformation micro displacement driver |
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| Country | Link |
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| CN (1) | CN201075848Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101119080B (en) * | 2007-06-19 | 2010-08-18 | 浙江大学 | Air-cooling temperature control principle based ultra-magnetostriction microfeed driving mechanism |
| US8056827B2 (en) * | 2007-09-20 | 2011-11-15 | Asm Assembly Automation Ltd | Jet dispenser comprising magnetostrictive actuator |
| CN103078553A (en) * | 2013-01-07 | 2013-05-01 | 大连理工大学 | Giant magnetostictive driving device |
| CN103078552A (en) * | 2013-01-07 | 2013-05-01 | 大连理工大学 | Harmonic motor |
| CN103291578A (en) * | 2013-05-06 | 2013-09-11 | 南京航空航天大学 | Giant magnetostrictive hydraulic pump and working method thereof |
| CN103552066A (en) * | 2013-11-18 | 2014-02-05 | 山东理工大学 | Deviation prevention type elastic moving pair |
| CN105644291A (en) * | 2016-03-24 | 2016-06-08 | 厦门理工学院 | Novel fully-active suspension apparatus and vehicle |
-
2007
- 2007-06-19 CN CNU2007201108945U patent/CN201075848Y/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101119080B (en) * | 2007-06-19 | 2010-08-18 | 浙江大学 | Air-cooling temperature control principle based ultra-magnetostriction microfeed driving mechanism |
| US8056827B2 (en) * | 2007-09-20 | 2011-11-15 | Asm Assembly Automation Ltd | Jet dispenser comprising magnetostrictive actuator |
| CN103078553A (en) * | 2013-01-07 | 2013-05-01 | 大连理工大学 | Giant magnetostictive driving device |
| CN103078552A (en) * | 2013-01-07 | 2013-05-01 | 大连理工大学 | Harmonic motor |
| CN103078552B (en) * | 2013-01-07 | 2014-12-24 | 大连理工大学 | Harmonic motor |
| CN103078553B (en) * | 2013-01-07 | 2015-11-18 | 大连理工大学 | A kind of super magnetostrictive actuating device |
| CN103291578A (en) * | 2013-05-06 | 2013-09-11 | 南京航空航天大学 | Giant magnetostrictive hydraulic pump and working method thereof |
| CN103291578B (en) * | 2013-05-06 | 2015-11-18 | 南京航空航天大学 | Giant magnetostrictive hydraulic pump and method of work thereof |
| CN103552066A (en) * | 2013-11-18 | 2014-02-05 | 山东理工大学 | Deviation prevention type elastic moving pair |
| CN103552066B (en) * | 2013-11-18 | 2015-07-01 | 山东理工大学 | Deviation prevention type elastic moving pair |
| CN105644291A (en) * | 2016-03-24 | 2016-06-08 | 厦门理工学院 | Novel fully-active suspension apparatus and vehicle |
| CN105644291B (en) * | 2016-03-24 | 2019-12-03 | 厦门理工学院 | Full Active suspension device and automobile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20080618 Effective date of abandoning: 20070619 |