CN205754057U - Active thermal compensation giant magnetostrictive actuator - Google Patents
Active thermal compensation giant magnetostrictive actuator Download PDFInfo
- Publication number
- CN205754057U CN205754057U CN201620631115.5U CN201620631115U CN205754057U CN 205754057 U CN205754057 U CN 205754057U CN 201620631115 U CN201620631115 U CN 201620631115U CN 205754057 U CN205754057 U CN 205754057U
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- magnetic
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- thermal compensation
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Abstract
This utility model belongs to magnetostriction field, relate to a kind of active thermal compensation giant magnetostrictive actuator, mainly include hindering magnetic base, thermal compensation bolt, lower magnetic conduction slide plate, magnetostriction sleeve, coil rack, lower magnetic inductive block, magnetostrictive rod, upper magnetic inductive block, magnetic conduction sleeve, upper magnetic conduction sheet, resistance magnetic ladder transmission axle, resistance magnetic shell, disk spring.This utility model is rational in infrastructure, simple to operate, practical, can be effectively reduced or eliminated owing to thermal expansion is for the impact of executor's displacement output accuracy by the thermal compensation structure within executor, substantially increase the displacement output accuracy of executor.Application for magnetostrictive device is significant.
Description
Technical field
This utility model relates to giant magnetostrictive actuator device field, has active thermal compensation function particularly to one
Giant magnetostrictive actuator.
Background technology
Magnetostriction materials Terfenol-D is the Novel Rare Earth Functional Materials that 20 century 70s occur, this material is regarded
The novel strategic functional material of one of country's high-tech synthesized competitiveness is improved for 21 century.Magnetostrictive effect is this material
One of important physical.This material has big magnetostriction coefficient, high-energy-density, response compared with piezoceramic material
Speed soon, the excellent specific property such as higher magnetomechanical conversion efficiency.Magnetostrictive effect is one of important physical of this material.Profit
Microdisplacement actuator can be made by the magnetostrictive effect characteristic of this material.The ultra-magnetic telescopic made with magnetostriction materials
Move executor to there is simple in construction, be prone to driving, precision height, the advantages such as little, operating frequency range width of drifting about.Excellent by these
Characteristic, giant magnetostrictive actuator has been obtained for extensively applying in Sonar system, and at precise and ultraprecise machining, stream
The engineering fields such as body machinery show good application prospect.
Although giant magnetostrictive actuator has as above advantage, but giant magnetostrictive actuator drives Jiao that coil produces
Have burning ears and the eddy current heat of magnetostriction materials self can cause magnetostriction materials to produce thermal expansion, affect the carry-out bit of executor
Move precision.Giant magnetostrictive actuator is as a kind of micro-displacement driving device, and its output displacement precision have to strictly control.Cause
This reduces the eddy current heat of the Joule heat driving coil to produce and magnetostriction materials self shadow to executor's displacement output accuracy
The output displacement precision ringing, improving executor is significant for the application of giant magnetostrictive actuator.
It is engaged in the research worker of magnetostriction materials and application in recent years to how reducing magnetostriction materials thermal expansion pair
The method of the impact of executor's output accuracy has carried out certain research.Such as, at Tianjin Enginnering Normal College's journal in 2010
In the thermal compensation research of volume 20 ultra-magnetic telescopic device that the 2nd phase 14-16 page delivers, LI Xiaopeng et al. proposes a kind of based on software
Upwards penalty method, cooling system is combined with software the thermal compensation carrying out executor；Large Zhejiang University Zhao Bing in 2008
In scholar's paper, the mode that in using, cover material and magnetostriction materials have identical thermal coefficient of expansion carries out vulcanizing of executor
Repay.But also rarely have the report being carried out thermal compensation by combination difformity magnetostriction materials at present.
Summary of the invention
Goal of the invention
This utility model provides a kind of active thermal compensation giant magnetostrictive actuator, its objective is to reduce actuator coil
The eddy current heat that the Joule heat produced and magnetostriction materials self produce is for the impact of executor's output displacement precision, and raising is held
The output displacement precision of row device.
Technical scheme
A kind of active thermal compensation giant magnetostrictive actuator, it is characterised in that: the lower end of executor is that upper end is with annulus
Shape boss, center and outer rim are with bolt hole, lower end band reeded resistance magnetic base；Thermal compensation bolt is arranged on resistance magnetic base
Centre bolt hole in；Under the flake with bolt hole of the center, magnetic conduction slide plate is arranged on the circular of resistance magnetic base upper surface
In boss, its center bolt hole be connected with thermal compensation bolt and and resistance magnetic base between there is gap；Magnetostriction sleeve is pacified
It is contained in above lower magnetic conduction slide plate；Center is arranged on above lower magnetic conduction slide plate with the coil rack of shoulder hole, the interior shaft shoulder of lower end
With magnetostriction barrel contacts；Lower end is arranged on the centre bore of coil rack with the shaft shoulder, the reeded lower magnetic inductive block of upper end band
In and the lower shaft shoulder and magnetostriction sleeve upper-end contact；Magnetostrictive rod is arranged in the groove of lower magnetic inductive block；Two ends up and down
Reeded upper magnetic inductive block is carried to be arranged on above magnetostrictive rod；Cylindric magnetic conduction sleeve is arranged on outside coil rack；Circle is thin
In lamellar, magnetic conduction sheet is arranged on above coil rack and magnetic conduction sleeve；Resistance magnetic ladder transmission axle is arranged on the upper groove of magnetic inductive block
In；Center is arranged on outside cylindric magnetic conduction sleeve with the resistance magnetic shell of bolt hole with tapped through hole, the lower end shaft shoulder, hinders magnetic
The lower surface of shell and resistance magnetic base contacts, the interior shaft shoulder of resistance magnetic shell lower end connects with the circular boss of resistance magnetic base upper surface
Touching, the interior shaft shoulder of upper end contacts with upper magnetic conduction sheet；It is provided with between shaft shoulder upper surface and the resistance magnetic shell of resistance magnetic ladder transmission axle
Disk spring；Outer rim is threaded, center with through hole pre-load nut with resistance magnetic shell upper surface screwed hole be connected and
Lower end contacts with disk spring.
Being bolted between resistance magnetic base and resistance magnetic shell, bolt is passed sequentially through outside resistance magnetic base and resistance magnetic by lower end
The bolt hole of shell.
Being provided with clamp nut on the shaft shoulder of resistance magnetic shell lower end, clamp nut coordinates with bolt.
Gap is there is between central through hole and the resistance magnetic ladder transmission axle of pre-load nut.
Gap is there is between upper magnetic inductive block and the centre bore of coil rack.
Advantage and effect
This utility model this active thermal compensation giant magnetostrictive actuator utilizes the magnetostriction spy of magnetostriction materials
Property, by magnetostriction sleeve, magnetic conduction slide plate and thermal compensation bolt, the thermal deformation of executor is compensated.Reduce thermal deformation pair
The impact of executor's output displacement, improves the precision of executor's output displacement.This utility model has simple in construction simultaneously, it is easy to
The feature of operation.
Accompanying drawing explanation
Fig. 1 is this utility model structural representation.
Fig. 2 is the enlarged diagram of part A in Fig. 1.
Description of reference numerals:
1. resistance magnetic ladder transmission axle, 2. pre-load nut, 3. disk spring, 4. resistance magnetic shell, 5. goes up magnetic conduction sheet, 6. flux sleeve
Cylinder, 7. coil, 8. descend magnetic conduction slide plate, 9. bolt, 10. clamp nut, magnetic inductive block on 11., 12. magnetostrictive rods, 13. coil bones
Frame, 14. times magnetic inductive blocks, 15. magnetostriction sleeves, 16. thermal compensation bolts, 17. resistance magnetic bases.
Detailed description of the invention
This utility model utilizes the magnetostrictive effect characteristic of magnetostriction materials, by by two kinds of difform mangnetos
Telescopic material combines, and devises a kind of active thermal compensation giant magnetostrictive actuator.
Described active thermal compensation giant magnetostrictive actuator, as shown in Figures 1 and 2, the lower end of executor is upper end band
There are circular boss, center and outer rim with bolt hole, the reeded discoid resistance magnetic base 17 of lower end band；Thermal compensation bolt
In the 16 centre bolt holes being arranged on resistance magnetic base 17；Under the flake with bolt hole of the center, magnetic conduction slide plate 8 is arranged on resistance
In the circular boss of magnetic base 17 upper surface, its center bolt hole be connected with thermal compensation bolt 16 and with resistance magnetic base 17 it
Between there is gap；Using threaded engagement between thermal compensation bolt 16 and lower magnetic conduction slide plate 8, magnetic conduction sheet 8 is acted on by power instantly
Time will move down, lower magnetic conduction slide plate 8 and resistance magnetic base 17 between gap ensure that lower magnetic conduction slide plate can move down.Magnetic
Cause extension sleeve 15 to be arranged on above lower magnetic conduction slide plate 8；Center is arranged on lower magnetic conduction slide plate 8 with the coil rack 13 of shoulder hole
Top, the interior shaft shoulder of lower end contacts with magnetostriction sleeve 15；The shaft shoulder and magnetostriction sleeve 15 in the lower end of coil rack 13
Contact, it is ensured that the upper end of magnetostriction sleeve is fixing end.Lower end is pacified with the shaft shoulder, the reeded lower magnetic inductive block 14 of upper end band
It is contained in the centre bore of coil rack 13 and the lower shaft shoulder and magnetostriction sleeve 15 upper-end contact；Magnetostrictive rod 12 is arranged on
In lower magnetic inductive block 14 groove；The two ends reeded upper magnetic inductive block 11 of band is arranged on above magnetostrictive rod 12 up and down；Cylindrical shape is led
Magnetic sleeve 6 is arranged on outside coil rack 13；On circle sheet shape, magnetic conduction sheet 5 is arranged on above coil rack 13 and magnetic conduction sleeve 6；
Resistance magnetic ladder transmission axle 1 is arranged in the upper groove of magnetic inductive block 11；Center with tapped through hole, the lower end shaft shoulder with bolt hole
Resistance magnetic shell 4 be arranged on outside cylindric magnetic conduction sleeve 6, the lower surface of resistance magnetic shell 4 contacts with resistance magnetic base 17, hinders outside magnetic
The interior shaft shoulder of shell 4 lower end contacts with the circular boss of resistance magnetic base 17 upper surface, and the interior shaft shoulder of upper end connects with upper magnetic conduction sheet 5
Touch；It is provided with disk spring 3 between shaft shoulder upper surface and the resistance magnetic shell 4 of resistance magnetic ladder transmission axle 1；Outer rim is threaded, in
Its central band has the pre-load nut 2 of through hole to connect with the screwed hole of resistance magnetic shell 4 upper surface and lower end contacts with disk spring 3.
Being fixed by bolt 9 between resistance magnetic base 17 and resistance magnetic shell 4, bolt 9 is passed sequentially through resistance magnetic base 17 by lower end
Bolt hole with resistance magnetic shell 4.The shaft shoulder of resistance magnetic shell 4 lower end is provided with clamp nut 10, clamp nut 10 and bolt 9
Coordinate, make whole device fix.
Gap is there is between central through hole and the resistance magnetic ladder transmission axle 1 of pre-load nut 2；Upper magnetic inductive block 11 and coil rack
Gap is there is between the centre bore of 13.Leave gap and can ensure that the smooth and easy not obstruction of displacement output of executor.
Utility model works principle is as follows:
Before utility model works, need to regulate clamp nut 10 correct with the connection ensureing whole executor.This practicality
During Novel work, first regulation pre-load nut 2 applies suitable pretightning force to executor.Pretightning force is transmitted by disk spring 3
Pretightning force is applied on magnetostrictive rod 12 to resistance magnetic ladder transmission axle 1, resistance magnetic ladder transmission axle 1 by upper magnetic inductive block 11.
Pretightning force is applied on magnetostriction sleeve 15 by magnetostrictive rod 12 by lower magnetic inductive block 14.The upper end of magnetostriction sleeve 15
Contact with the interior shaft shoulder of coil rack 13 lower end, coil rack 13 is fixed by resistance magnetic shell 4, therefore magnetostriction sleeve 15
Upper end is fixing end.When being passed through excitation in actuator coil 7, coil 7 magnetic field produced causes magnetostriction sleeve 15 He
Magnetostrictive rod 12 produces the output of displacement and power.The lower end of magnetostrictive rod 12 contacts with lower magnetic inductive block 14 holds into fixing, because of
Be displaced through magnetic inductive block 11 produced by this, resistance magnetic ladder transmission axle 1 carries out displacement output.And magnetostriction sleeve 15 times
End contacts with lower magnetic conduction slide plate 8, and lower magnetic conduction slide plate 8 is connected with thermal compensation bolt 16, and magnetic conduction slide plate 8 is by magnetostriction set instantly
Can move down along the screw thread of thermal compensation bolt 16 when the power of cylinder 15 generation and displacement effect.Instantly magnetic conduction slide plate 8 is to moving down
The movement that time dynamic, coil rack 13,15 times magnetic inductive blocks 14 of magnetostriction sleeve and magnetostrictive rod 12 are the most downward, therefore by thermal conductance
The expansion displacement causing magnetostrictive rod 12 generation is compensated.
Conclusion:
This utility model is rational in infrastructure, simple to operate, practical.Can be had by the thermal compensation structure within executor
Being reduced or eliminated owing to thermal expansion is for the impact of executor's displacement output accuracy of effect, the displacement substantially increasing executor is defeated
Go out precision.Executor is applied to drive the occasion that precision is higher to provide possibility, apparatus is answered for magnetostrictive device
Significant.
Claims (5)
1. an active thermal compensation giant magnetostrictive actuator, it is characterised in that: the lower end of executor is that upper end is with circular
Boss, center and outer rim are with bolt hole, lower end band reeded resistance magnetic base (17)；Thermal compensation bolt (16) is arranged on resistance
In the centre bolt hole of magnetic base (17)；Under the flake with bolt hole of the center, magnetic conduction slide plate (8) is arranged on resistance magnetic base
(17) in the circular boss of upper surface, its center bolt hole be connected with thermal compensation bolt (16) and with resistance magnetic base (17) it
Between there is gap；Magnetostriction sleeve (15) is arranged on lower magnetic conduction slide plate (8) top；Center is with the coil rack of shoulder hole
(13) being arranged on lower magnetic conduction slide plate (8) top, the interior shaft shoulder of lower end contacts with magnetostriction sleeve (15)；Lower end with the shaft shoulder,
The reeded lower magnetic inductive block of upper end band (14) is arranged in the centre bore of coil rack (13) and the lower shaft shoulder and magnetostriction set
Cylinder (15) upper-end contact；Magnetostrictive rod (12) is arranged in the groove of lower magnetic inductive block (14)；On upper and lower two ends band is reeded
Magnetic inductive block (11) is arranged on magnetostrictive rod (12) top；Cylindric magnetic conduction sleeve (6) is arranged on coil rack (13) outside；Circle
In flake, magnetic conduction sheet (5) is arranged on coil rack (13) and magnetic conduction sleeve (6) above；Resistance magnetic ladder transmission axle (1) is arranged on
In the upper groove of upper magnetic inductive block (11)；Center is arranged on resistance magnetic shell (4) of bolt hole with tapped through hole, the lower end shaft shoulder
Cylindric magnetic conduction sleeve (6) outside, the lower surface of resistance magnetic shell (4) contacts with resistance magnetic base (17), resistance magnetic shell (4) lower end
The interior shaft shoulder contacts with the circular boss of resistance magnetic base (17) upper surface, and the interior shaft shoulder of upper end contacts with upper magnetic conduction sheet (5)；In resistance
It is provided with disk spring (3) between shaft shoulder upper surface and resistance magnetic shell (4) of magnetic ladder transmission axle (1)；Outer rim is threaded, center
Pre-load nut (2) and the screwed hole hindering magnetic shell (4) upper surface with through hole are connected and lower end connects with disk spring (3)
Touch.
Active thermal compensation giant magnetostrictive actuator the most according to claim 1, it is characterised in that: resistance magnetic base (17) with
Being fixed by bolt (9) between resistance magnetic shell (4), bolt (9) is passed sequentially through resistance magnetic base (17) and resistance magnetic shell (4) by lower end
Bolt hole.
Active thermal compensation giant magnetostrictive actuator the most according to claim 1, it is characterised in that: in resistance magnetic shell (4)
Being provided with clamp nut (10) on the shaft shoulder of lower end, clamp nut (10) coordinates with bolt (9).
Active thermal compensation giant magnetostrictive actuator the most according to claim 1, it is characterised in that: pre-load nut (2)
Gap is there is between central through hole and resistance magnetic ladder transmission axle (1).
5. with the active thermal compensation giant magnetostrictive actuator described in claim 1, it is characterised in that: upper magnetic inductive block (11) and line
Gap is there is between the centre bore of ring framework (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620631115.5U CN205754057U (en) | 2016-06-24 | 2016-06-24 | Active thermal compensation giant magnetostrictive actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620631115.5U CN205754057U (en) | 2016-06-24 | 2016-06-24 | Active thermal compensation giant magnetostrictive actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205754057U true CN205754057U (en) | 2016-11-30 |
Family
ID=57384486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620631115.5U Withdrawn - After Issue CN205754057U (en) | 2016-06-24 | 2016-06-24 | Active thermal compensation giant magnetostrictive actuator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205754057U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105915106A (en) * | 2016-06-24 | 2016-08-31 | 沈阳工业大学 | Active thermal compensation giant magnetostrictive actuator |
-
2016
- 2016-06-24 CN CN201620631115.5U patent/CN205754057U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105915106A (en) * | 2016-06-24 | 2016-08-31 | 沈阳工业大学 | Active thermal compensation giant magnetostrictive actuator |
| CN105915106B (en) * | 2016-06-24 | 2019-01-11 | 沈阳工业大学 | active thermal compensation giant magnetostrictive actuator |
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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: 20161130 Effective date of abandoning: 20190111 |
|
| AV01 | Patent right actively abandoned |