CN200962571Y - Combined temperature control ultra-magnetic telescopic driver - Google Patents
Combined temperature control ultra-magnetic telescopic driver Download PDFInfo
- Publication number
- CN200962571Y CN200962571Y CN 200620099592 CN200620099592U CN200962571Y CN 200962571 Y CN200962571 Y CN 200962571Y CN 200620099592 CN200620099592 CN 200620099592 CN 200620099592 U CN200620099592 U CN 200620099592U CN 200962571 Y CN200962571 Y CN 200962571Y
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- magnetostrictive
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- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Abstract
The utility model relates to a composite thermoregulation super-magnetostrictive driver, comprising a super-magnetostrictive bar (6), a water-cooling mechanism and a coiling framework (5). The water-cooling mechanism includes a water-cooling cavity positioned outside the coil, an inlet (3) and an outlet (13) both connected with the water-cooling cavity. A phase-change thermoregulation cavity with phase-change material (7) inside is positioned between the coiling framework (5) and the super-magnetostrictive bar (6). The utility model adopts the composition of water-cooling mechanism and phase-change material to control temperature and adopts water-cooling mechanism outside the coil to lower temperature, preventing temperature distortion of the shell side face. The phase-change material is employed to lower temperature inside the coil so as to prevent elevated temperature deformation of the super-magnetostrictive bar. Circulating pipe is needless in the phase-change material, making structure of the super-magnetostrictive driver simple. Moreover, the phase-change material will absorb plenty of heat when phase changing, rendering a good cooling effect and high output accuracy of the super-magnetostrictive driver.
Description
Technical field
The utility model relates to fine motion actuator, particularly super-magnetostrictive drive.
Background technology
Characteristics such as super-magnetostrictive drive is big with its power output, displacement resolution height, displacement range are big have a wide range of applications in ultraprecise processing and navigation system.It has overcome drift phenomenon that the piezoelectric ceramic actuator lamination brings and the piezoelectric ceramic labyrinth that preventing of bringing leak electricity etc. of under high pressure working.Yet super-magnetostrictive drive is when work, and the maximum output of the controlled displacement of the heat distortion amount of the giant magnetostrictive rod that coil heating causes and super-magnetostrictive drive is tens microns, is in the same order of magnitude, and is bigger to the influence of driver precision.Simultaneously, the heat that coil distributes not only can be to the magnetostrictive rod transmission, also can cause its distortion, thereby also can have influence on the output accuracy of driver by the both ends of the surface of coil and outer surface respectively to parts transmission such as base, end cap and housings.Thereby in the workplace of long-time, big electric current, superelevation precision, existing actuator technologies can not well satisfy required precision.
For addressing the above problem, people have invented the water-cooled super-magnetostrictive drive.Be provided with water-cooled mechanism in this super-magnetostrictive drive, water-cooled mechanism comprise waterway and with the entery and delivery port of waterway UNICOM; Waterway is arranged on the inside and outside both sides of coil, by the thermostatted water that flows the heat that coil sends is taken away, and to reduce the temperature of super-magnetostrictive drive, reduces the heat distortion amount of giant magnetostrictive rod, thereby improves the precision of super-magnetostrictive drive.
The defective of water-cooled super-magnetostrictive drive is: 1, the coil inboard is provided with waterway, and the inlet and outlet pipe of waterway is difficult to arrange complex structure; 2, can only lower the temperature to the inside and outside both sides of coil, the heat that the coil both ends of the surface are distributed is still very big, easily causes casing deformation, has influence on the output accuracy of driver.
Summary of the invention
Technical problem to be solved in the utility model is: a kind of combined with temperature-control type super-magnetostrictive drive is provided, and this super-magnetostrictive drive is simple in structure, the output accuracy height.
The utility model solves the problems of the technologies described above the technical scheme that is adopted:
Combined with temperature-control type super-magnetostrictive drive, it comprises housing, giant magnetostrictive rod, output shaft, coil rack, is wrapped in coil, water-cooled mechanism on the coil rack; Water-cooled mechanism comprise waterway and with water inlet, the delivery port of waterway UNICOM, water inlet and delivery port are arranged on the housing; Giant magnetostrictive rod is arranged in the housing, and the lower end of output shaft is pressed in the upper end of giant magnetostrictive rod in advance, and coil rack is enclosed within on the giant magnetostrictive rod, and waterway is arranged on the outside of coil; Be provided with a phase change temperature control chamber between coil rack and the giant magnetostrictive rod, phase change temperature control is equipped with phase-change material in the chamber.
In the such scheme, super-magnetostrictive drive also comprises the phase change temperature control sleeve, and the phase change temperature control chamber is the annular seal space that forms between phase change temperature control sleeve and the coil rack.
In the such scheme, super-magnetostrictive drive also comprises the water-cooled sleeve, is enclosed within the cylinder on the water-cooled sleeve; Waterway is the annular seal space that forms between water-cooled sleeve and the cylinder.
In the such scheme, be provided with sealing ring between the top of waterway, phase change temperature control chamber, coil rack and the housing.
In the such scheme, be provided with sealing ring between the bottom of waterway, phase change temperature control chamber, coil rack and the housing.
In the such scheme, be provided with thermal insulation board between the top of coil and the coil rack.
In the such scheme, be provided with thermal insulation board between the bottom of coil and the coil rack.
Compared with prior art, the utility model combined with temperature-control type super-magnetostrictive drive has the following advantages:
1, adopts water-cooled mechanism and phase-change material combination carrying out temperature control, lower the temperature in the coil outside, prevent the side temperature distortion of shell with water-cooled mechanism; With phase-change material in coil side lower the temperature, suppress the temperature rise distortion of giant magnetostrictive rod; Because phase-change material need not circulation line, makes the structure of super-magnetostrictive drive become simple.Can absorb a large amount of heats, good cooling effect, super-magnetostrictive drive output accuracy height during again owing to the phase-change material phase transformation.
2, the phase change temperature control chamber is the annular seal space that forms between phase change temperature control sleeve and the coil rack, and waterway is the annular seal space that forms between water-cooled sleeve and the cylinder, and the super-magnetostrictive drive loading and unloading are simple.
3, be provided with sealing ring between the upper and lower part of waterway, phase change temperature control chamber, coil rack and the housing, can make the better tightness in waterway, phase change temperature control chamber.
4, be provided with thermal insulation board between the upper and lower part of coil and the coil rack, on the whole super-magnetostrictive drive carried out temperature rise and suppress, can not cause the upper and lower part temperature distortion of shell, thereby improve the displacement control precision of super-magnetostrictive drive.
Description of drawings
Fig. 1 is the structural representation of the utility model combined with temperature-control type super-magnetostrictive drive embodiment
Among the figure: 1. housing, 2. sealing ring, 3. water inlet, 4. bias coil, 5. coil rack, 6. giant magnetostrictive rod, 7. phase-change material, 8. phase change temperature control sleeve, 9. thermal insulation board, 10. output shaft, 11. precompressed nuts, 12. preloading springs, 13. delivery port, 14. cylinder, 15. water-cooled sleeves, 16. excitation coils.
Embodiment
The utility model combined with temperature-control type super-magnetostrictive drive embodiment as shown in Figure 1, it comprises housing 1, giant magnetostrictive rod 6, output shaft 10, coil rack 5, is wrapped in coil, water-cooled mechanism on the coil rack 5.Water-cooled mechanism comprise waterway and with water inlet 3, the delivery port 13 of waterway UNICOM, water inlet 3 and delivery port 13 are arranged on the housing 1; Giant magnetostrictive rod 6 is arranged in the housing 1, and the lower end of output shaft 10 is pressed in the upper end of giant magnetostrictive rod 6 in advance, and coil rack 5 is enclosed within on the giant magnetostrictive rod 6, and waterway is arranged on the outside of coil; Be provided with a phase change temperature control chamber between coil rack 5 and the giant magnetostrictive rod 6, phase-change material 7 is housed in the phase change temperature control chamber.
Super-magnetostrictive drive also comprises phase change temperature control sleeve 8, and the phase change temperature control chamber is the annular seal space that forms between phase change temperature control sleeve 8 and the coil rack 5, takes interference fit between phase change temperature control sleeve 8 and the coil rack 5.
Super-magnetostrictive drive also comprises water-cooled sleeve 15, is enclosed within the cylinder 14 on the water-cooled sleeve 15; Waterway is the annular seal space that forms between water-cooled sleeve 15 and the cylinder 14, takes interference fit between water-cooled sleeve 15 and the cylinder 14.
Be provided with sealing ring 2 between the upper and lower part of waterway, phase change temperature control chamber, coil rack 5 and the housing 1.
Coil comprises excitation coil 16 and bias coil 4.Excitation coil 16 leads to when going up electric current, produces excitation field, changes the size of driver current, thereby changes the size of driving magnetic field, and then causes the length of giant magnetostrictive rod 6 to change, and can promote output shaft 10 and move.Bias coil 4 can produce bias magnetic field, thereby eliminates the frequency multiplication characteristic of giant magnetostrictive rod 6.Be provided with thermal insulation board 9 between the upper and lower part of coil and the coil rack 5.
The top of housing 1 also has a cavity, and the boss that from top to bottom is equipped with in the cavity on precompressed nut 11, pre-compressed spring 12 and the output shaft 10 forms the precompressed combined mechanism; Wherein, precompressed nut 11 and housing 1 threaded engagement, output shaft 10 is slidingly matched with precompressed nut 11 inner via holes.The precompressed combined mechanism of being made up of the boss on precompressed nut 11, pre-compressed spring 12 and the output shaft 10 can allow output shaft 10 apply prefabricating load for giant magnetostrictive rod 6, thereby giant magnetostrictive rod 6 is operated under the preferable condition.
Output shaft 10, housing 1 are permeability magnetic material, form closed magnetic circuit with giant magnetostrictive rod 6; The precompressed nut 11 of upper end adopts non-magnet material.
The phase-change material that the utility model embodiment adopts is the T-pcm HP 105 that Laird Technologies company produces.In the telescopic drive device course of work, in the process that the heat that coil distributes inwardly transmits, earlier through phase-change temperature control device, phase-change material 7 absorbs heat, when reaching fusing point (about 40 ℃), begin fusing, the heat that absorption and storage and the latent heat of fusion are suitable, simultaneously to remain on fusing point constant for the interface temperature, thereby make the temperature rise of giant magnetostrictive rod 6 receive inhibition.When telescopic drive device coil blackout, the liquid phase-change material begins to discharge latent heat and solidifies voluntarily, and the temperature of giant magnetostrictive rod 6 still remains unchanged; After phase-change material all solidified, the temperature of magnetostrictive rod 6 just was returned to ambient temperature gradually.Realize keeping the constant working temperature of giant magnetostrictive rod like this.
The utility model super-magnetostrictive drive embodiment can use precision height, good operating stability at special occasions such as long-time, big electric currents.
Claims (7)
1, combined with temperature-control type super-magnetostrictive drive, it comprises housing (1), giant magnetostrictive rod (6), output shaft (10), coil rack (5), is wrapped in coil, water-cooled mechanism on the coil rack (5); Water-cooled mechanism comprise waterway and with water inlet (3), the delivery port (13) of waterway UNICOM, water inlet (3) and delivery port (13) are arranged on the housing (1); Giant magnetostrictive rod (6) is arranged in the housing (1), and the lower end of output shaft (10) is pressed in the upper end of giant magnetostrictive rod (6) in advance, and coil rack (5) is enclosed within on the giant magnetostrictive rod (6), and waterway is arranged on the outside of coil; It is characterized in that: be provided with a phase change temperature control chamber between coil rack (5) and the giant magnetostrictive rod (6), phase-change material (7) is housed in the phase change temperature control chamber.
2, super-magnetostrictive drive as claimed in claim 1 is characterized in that: it also comprises phase change temperature control sleeve (8), and the phase change temperature control chamber is the annular seal space that forms between phase change temperature control sleeve (8) and the coil rack (5).
3, super-magnetostrictive drive as claimed in claim 1 is characterized in that: it also comprises water-cooled sleeve (15), is enclosed within the cylinder (14) on the water-cooled sleeve (15); Waterway is the annular seal space that forms between water-cooled sleeve (15) and the cylinder (14).
4, super-magnetostrictive drive as claimed in claim 1 is characterized in that: be provided with sealing ring (2) between the top of waterway, phase change temperature control chamber, coil rack (5) and the housing (1).
5, super-magnetostrictive drive as claimed in claim 1 is characterized in that: be provided with sealing ring (2) between the bottom of waterway, phase change temperature control chamber, coil rack (5) and the housing (1).
6, super-magnetostrictive drive as claimed in claim 1 is characterized in that: be provided with thermal insulation board (9) between the top of coil and the coil rack (5).
7, super-magnetostrictive drive as claimed in claim 1 is characterized in that: be provided with thermal insulation board (9) between the bottom of coil and the coil rack (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620099592 CN200962571Y (en) | 2006-10-25 | 2006-10-25 | Combined temperature control ultra-magnetic telescopic driver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620099592 CN200962571Y (en) | 2006-10-25 | 2006-10-25 | Combined temperature control ultra-magnetic telescopic driver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200962571Y true CN200962571Y (en) | 2007-10-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620099592 Expired - Fee Related CN200962571Y (en) | 2006-10-25 | 2006-10-25 | Combined temperature control ultra-magnetic telescopic driver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200962571Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110838802A (en) * | 2018-08-15 | 2020-02-25 | 湖南科技学院 | Giant magnetostrictive driver |
| CN112901592A (en) * | 2021-03-03 | 2021-06-04 | 南京伶机宜动驱动技术有限公司 | Hydraulic driver based on magnetoelectric displacement detection |
-
2006
- 2006-10-25 CN CN 200620099592 patent/CN200962571Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110838802A (en) * | 2018-08-15 | 2020-02-25 | 湖南科技学院 | Giant magnetostrictive driver |
| CN112901592A (en) * | 2021-03-03 | 2021-06-04 | 南京伶机宜动驱动技术有限公司 | Hydraulic driver based on magnetoelectric displacement detection |
| CN112901592B (en) * | 2021-03-03 | 2024-04-19 | 南京伶机宜动驱动技术有限公司 | Hydraulic driver based on magneto-electric displacement detection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |