CN206077257U - Differential-mode magnetic control shape memory alloy self-sensing actuator - Google Patents
Differential-mode magnetic control shape memory alloy self-sensing actuator Download PDFInfo
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- CN206077257U CN206077257U CN201621136445.3U CN201621136445U CN206077257U CN 206077257 U CN206077257 U CN 206077257U CN 201621136445 U CN201621136445 U CN 201621136445U CN 206077257 U CN206077257 U CN 206077257U
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- msma
- shape memory
- memory alloy
- differential
- outer housing
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Abstract
This utility model provides a kind of differential-mode magnetic control shape memory alloy self-sensing actuator, including outer housing, coupling, two iron cores, conductive bar, regulating bolt and current controller；Outer housing is provided with a pair coaxial through holes, and a through hole is provided with regulating bolt；Conductive bar is provided with another through hole；Be provided with outer housing two it is unshakable in one's determination, leave gap between two iron cores, iron core is provided with magnet exciting coil, and magnet exciting coil is connected with current controller；Coupling is provided with gap between two iron cores, between the two ends of coupling and regulating bolt and conductive bar, it is respectively equipped with a MSMA elements, two MSMA elements is respectively provided on two sides with a permanent magnet, and permanent magnet is provided with magnetic isolation plate towards the face of outer housing.This utility model simple structure, its excitation con-trol only need to provide the exciting power for producing differential magnetic field part, so as to reducing the volume of MSMA drivers and improve control efficiency, and improve the control accuracy of MSMA drivers.
Description
Technical field
This utility model is related to a kind of differential-mode magnetic control shape memory alloy self-sensing actuator.
Background technology
Structural vibration control is to arrange some control devices at some positions of structure, applies one group of control in structural vibration
The dynamic trait of power processed or adjustment structure, which reduces structural vibration and rings for the antidetonation, the wind loading rating that improve civil engineering structure
Should, casualty loss is reduced, structure safety is met and is all significant using aspects such as functional requirements.
Magnetic control shape memory alloy（MSMA）It is a kind of intellectual material for occurring in recent years, with pace of change is fast, controllable position
The features such as moving greatly and there is memory function.Related data shows that MSMA materials can reach more than 10% in the strain in magnetic field,
Flexural deformation rate is up to 18%.The magnetic control shape memory function of MSMA has reversibility, and not only under the action of a magnetic field, MSMA can be produced
Deformation and power, and the change of electromagnetic signal can be produced under external force by the change of magnetic property, this is just to adopt MSMA
Manufacture driver provides condition.
Magnetic control shape memory alloy is the non-magnet material that a kind of pcrmeability is bordering on air, controls its deformation needs larger
Exciting power, and the magnetic control characteristic of this kind of alloy material is more sensitive to temperature.
The content of the invention
In order to solve above-mentioned technical problem, this utility model provides a kind of simple structure, can reduce control power and
The differential-mode magnetic control shape memory alloy self-sensing actuator that compensation temperature affects.
The technical solution adopted in the utility model is：Including outer housing, coupling, two iron cores, conductive bar, regulating bolt and electricity
Stream controller；Outer housing is provided with a pair coaxial through holes, and a through hole is provided with regulating bolt, regulating bolt and the through hole with
Threaded connection；Conductive bar is provided with another through hole；Be provided with outer housing two it is unshakable in one's determination, leave gap between two iron cores, two is unshakable in one's determination logical
Cross pressing plate to connect as one, iron core is provided with magnet exciting coil, and magnet exciting coil is connected with current controller；Gap between two iron cores
In be provided with coupling, a MSMA elements, two MSMA elements are respectively equipped between the two ends of coupling and regulating bolt and conductive bar
Be respectively provided on two sides with a permanent magnet, permanent magnet is provided with magnetic isolation plate towards the face of outer housing.
In above-mentioned differential-mode magnetic control shape memory alloy self-sensing actuator, described displacement exports coupling, conduction
Bar and regulating bolt are made using non-permeable material.
In above-mentioned differential-mode magnetic control shape memory alloy self-sensing actuator, outer housing is made using ferrimagnet.
In above-mentioned differential-mode magnetic control shape memory alloy self-sensing actuator, described iron core is good by magnetic property
Electrical sheet is overrided to form, and the shape of the corresponding permanent magnet of two MSMA elements, size are identical with material behavior.
In above-mentioned differential-mode magnetic control shape memory alloy self-sensing actuator, two it is unshakable in one's determination on magnet exciting coil size
It is identical with the number of turn, using mode connected in series or in parallel, produce the magnetic field of equidirectional.
In above-mentioned differential-mode magnetic control shape memory alloy self-sensing actuator, MSMA elements adopt magnetic control shape memory
Alloy materialMake, the shape of two MSMA elements, size and performance are all identical.
Compared with prior art, the beneficial effects of the utility model are：
1st, this utility model adopts permanent magnet to produce constant bias field to improve operating point, excitation control of the present utility model
System only needs to provide the exciting power for producing differential magnetic field part, can obtain larger MSMA deformations with less exciting power, from
And reduce the volume of MSMA drivers and improve control efficiency.
2nd, working method of this utility model using two MSMA element complementaries of coaxial placement a, when element adds magnetic field
Another subtracts magnetic field, plus the pressure of the axially elongated generation of element in magnetic field is used to subtract field element recovery deformation；This practicality is new
The deformation of the MSMA of type and recovery pressure can pass through to apply the magnetic field size of two elements and accurately control, so improve MSMA drivings
The control accuracy of device.
3rd, this utility model is employed with the symmetrical Differential Control mode of element function, circuit parameter and magnetic structure,
The impact of the factor such as ambient temperature and control power-supply fluctuation is eliminated, the stability of MSMA executors is improve.
Description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is control circuit series system wiring diagram of the present utility model.
Specific embodiment
Below in conjunction with the accompanying drawings this utility model is further described.
As shown in Figure 1, 2, this utility model includes outer housing 15, coupling 5, iron core 6, iron core 7, conductive bar 10, regulation spiral shell
Bolt 11 and current controller 14；Described outer housing 15 is made using ferrimagnet.Outer housing 15 is provided with a pair coaxial through holes,
One through hole is provided with regulating bolt 11, and regulating bolt 11 and the through hole are being threadedly coupled；Conductive bar is provided with another through hole
10。
Be provided with outer housing 15 two it is unshakable in one's determination（Unshakable in one's determination 8 and unshakable in one's determination 9）, unshakable in one's determination 8 and unshakable in one's determination 9 by the good electrician of magnetic property
Steel disc is overrided to form, and the magnetic circuit of unshakable in one's determination 8 and unshakable in one's determination 9 each several part is in undersaturated condition.Between leaving between unshakable in one's determination 6 and unshakable in one's determination 7
Gap, unshakable in one's determination 6 and unshakable in one's determination 7 are connected as one by pressing plate, are respectively equipped with magnet exciting coil 9 and magnet exciting coil 8 on unshakable in one's determination 6 and unshakable in one's determination 7,
Magnet exciting coil 9 and magnet exciting coil 8 are connected with current controller；Magnet exciting coil 9 is identical with the number of turn with the size of magnet exciting coil 8, adopts
Mode connected in series or in parallel is used, the magnetic field of equidirectional is produced.
Coupling 5 is provided with gap between two iron cores, coupling 5 is coaxial with regulating bolt 11, coupling 5, conductive bar
10th, regulating bolt 11 is made using non-permeable material.Divide between the two ends of coupling 5 and regulating bolt 11 and conductive bar 10
MSMA elements 2 and MSMA elements 1 are not provided with, MSMA elements 2 and MSMA elements 1 adopt magnetic control shape memory alloy materialMake, the shape of MSMA elements 2 and MSMA elements 1, size and performance are all identical.MSMA elements 1
It is respectively provided on two sides with a permanent magnet 3, MSMA elements 2 are respectively provided on two sides with a permanent magnet 4,3 shape of permanent magnet 4 and permanent magnet,
Size is identical with material behavior, and the direction of magnetization must be identical.Permanent magnet 4 and permanent magnet 3 divide towards on the face of outer housing
Magnetic isolation plate 13 and magnetic isolation plate 12 are not provided with.
When electric current is not passed through in magnet exciting coil 8, magnet exciting coil 9, in MSMA elements 1, MSMA elements 2 only have permanent magnet 3,
The constant bias field that permanent magnet 4 is produced.Due to permanent magnet and the symmetrical structure of magnetic circuit, in MSMA elements 1, MSMA elements 2
Magnetic field size is identical, therefore deflection is identical.Coupling 5 is located at center and not output displacement, as shown in Figure 1.Work as excitation wire
When being passed through the electric current in a direction in circle 8, magnet exciting coil 9, produced control magnetic field is in MSMA elements 1, MSMA elements 2
Magnetic direction is contrary.The bias field that control magnetic field is produced with permanent magnet 3, permanent magnet 4 is superimposed, first in MSMA elements 1, MSMA
In part 2, one magnetic field-enhanced and another field weakening, and MSMA elements 1, MSMA elements 2 make coupling 5 because of deflection difference
It is mobile, displacement downward or upward is exported, is applied in external structure by conductive bar 10.By change be passed through magnet exciting coil 8,
9 sense of current of magnet exciting coil is changing the direction in controllable magnetic field, and then changes the direction of 10 displacement of conductive bar.Encouraged by control
Magnetic coil 8, the size of 9 electric current of magnet exciting coil control the power in magnetic field, can accurately control the displacement of conductive bar 10.Excitation wire processed
The circle 8, control of the size and Orientation of the electric current of magnet exciting coil 9, is to adopt electronic power conversion by field current controller 14
Technology is realizing.
Claims (6)
1. a kind of differential-mode magnetic control shape memory alloy self-sensing actuator, is characterized in that：Including outer housing, coupling, it is two unshakable in one's determination,
Conductive bar, regulating bolt and current controller；Outer housing is provided with a pair coaxial through holes, and a through hole is provided with regulation spiral shell
Bolt, regulating bolt and the through hole are being threadedly coupled；Conductive bar is provided with another through hole；Two unshakable in one's determination, two ferrum are provided with outer housing
Gap is left in the heart, two iron cores are connected as one by pressing plate, iron core is provided with magnet exciting coil, magnet exciting coil and current controller
It is connected；Coupling is provided with gap between two iron cores, is respectively equipped between the two ends of coupling and regulating bolt and conductive bar
One MSMA elements, two MSMA elements are respectively provided on two sides with a permanent magnet, and permanent magnet is provided with magnetic isolation plate towards the face of outer housing.
2. differential-mode magnetic control shape memory alloy self-sensing actuator according to claim 1, is characterized in that：Described connection
Connect device, conductive bar and regulating bolt to make using non-permeable material.
3. differential-mode magnetic control shape memory alloy self-sensing actuator according to claim 1, is characterized in that：Outer housing is adopted
Ferrimagnet is made.
4. differential-mode magnetic control shape memory alloy self-sensing actuator according to claim 1, is characterized in that：Described ferrum
The heart is overrided to form by the good electrical sheet of magnetic property, and the shape of the corresponding permanent magnet of two MSMA elements, size and material are special
Property is identical.
5. differential-mode magnetic control shape memory alloy self-sensing actuator according to claim 1, is characterized in that：Two unshakable in one's determination
On magnet exciting coil size it is identical with the number of turn, using mode connected in series or in parallel, and produce equidirectional magnetic field.
6. differential-mode magnetic control shape memory alloy self-sensing actuator according to claim 1, is characterized in that：MSMA is first
Part adopts magnetic control shape memory alloy materialMake, the shape of two MSMA elements, size and performance are all
It is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621136445.3U CN206077257U (en) | 2016-10-19 | 2016-10-19 | Differential-mode magnetic control shape memory alloy self-sensing actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621136445.3U CN206077257U (en) | 2016-10-19 | 2016-10-19 | Differential-mode magnetic control shape memory alloy self-sensing actuator |
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| Publication Number | Publication Date |
|---|---|
| CN206077257U true CN206077257U (en) | 2017-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621136445.3U Expired - Fee Related CN206077257U (en) | 2016-10-19 | 2016-10-19 | Differential-mode magnetic control shape memory alloy self-sensing actuator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106301064A (en) * | 2016-10-19 | 2017-01-04 | 湖南科技学院 | Differential-mode magnetic control shape memory alloy self-sensing actuator |
-
2016
- 2016-10-19 CN CN201621136445.3U patent/CN206077257U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106301064A (en) * | 2016-10-19 | 2017-01-04 | 湖南科技学院 | Differential-mode magnetic control shape memory alloy self-sensing actuator |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170405 Termination date: 20201019 |
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| CF01 | Termination of patent right due to non-payment of annual fee |