CN106807615A - Magnetostriction longitudinal-torsional composite ultrasonic vibration transducer - Google Patents
Magnetostriction longitudinal-torsional composite ultrasonic vibration transducer Download PDFInfo
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- CN106807615A CN106807615A CN201710035278.6A CN201710035278A CN106807615A CN 106807615 A CN106807615 A CN 106807615A CN 201710035278 A CN201710035278 A CN 201710035278A CN 106807615 A CN106807615 A CN 106807615A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
- B06B1/08—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with magnetostriction
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- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Abstract
The invention discloses a kind of magnetostriction longitudinal-torsional composite ultrasonic vibration transducer, including magnetostriction materials part, ultrasonic transformer, first electrode piece and second electrode piece, coil rack and coil, first electrode piece and second electrode piece are respectively provided at magnetostriction materials part two ends, second electrode piece is located between ultrasonic transformer and magnetostriction materials part and only supports ultrasonic transformer and magnetostriction materials part, first electrode piece is electrically connected with the external world with second electrode piece so as to produce alternation toroidal magnetic field in magnetostriction materials part, coil rack is set in magnetostriction materials part periphery, coil winding is on coil rack, coil is electrically connected with the external world so as to form alternation axial magnetic field in magnetostriction materials part, two magnetic couplings excitation magnetostriction materials realize that longitrorse resonates.It is the simple structure of the magnetostriction longitudinal-torsional composite ultrasonic vibration transducer, compact, Miniaturization Design is advantageously implemented, and power output and output amplitude can be increased, improve crudy and processing efficiency.
Description
Technical field
The present invention relates to ultrasonic nontraditional precision machining technical field, indulge-turn round compound more particularly, to a kind of magnetostriction
Single-excitation ultrasonic oval vibration energy converter.
Background technology
In hard brittle material high-speed cutting processing, rotary ultrasonic machining (i.e. tool heads at a high speed rotate while additional ultrasound
Frequency mechanical oscillation) cutting force can be reduced, mitigate tool wear, improve crudy and processing efficiency.Relevant research shows：Work
Additional longitudinal direction and torsional ultrasonic frequency mechanical oscillation, that is, indulge-turn round composite ultraphonic vibration while tool head height speed rotation, can further subtract
Small cutting force, improves crudy and processing efficiency.At present, that realizes torsional oscillation occurring mode has shear-polarization piezoelectric ceramics direct
Exciting and vertical-twisting die formula convert two kinds.However, both the above mode subject matter in the application is：
(1) preparation of shear-polarization piezoelectric ceramic piece and difficulty of processing are big, are applied in combination shear-polarization and longitudinal polarization pressure
Electroceramics piece make ultrasonic transducer power it is small, and torsional moment be lost in transmittance process it is larger.
(2) vertical-torsionization is realized using flume structure more than pattern conversion type ultrasonic transducer.The device energy conversion efficiency
It is low, and there is difficult point in design, it is difficult to ensure that extensional vibration and twisting vibration resonance.
The content of the invention
It is contemplated that at least solving one of technical problem in correlation technique to a certain extent.
Therefore, the present invention proposes a kind of magnetostriction longitudinal-torsional composite ultrasonic vibration transducer, the magnetostriction Hybrid transducer
It is the simple structure of single-excitation ultrasonic oval vibration energy converter, compact, Miniaturization Design is advantageously implemented, and energy damage can be efficiently reduced
Consumption, under equal conditions increases power output and output amplitude, improves crudy and processing efficiency.
Magnetostriction longitudinal-torsional composite ultrasonic vibration transducer according to embodiments of the present invention, including shell, magnetostriction material
Materials and parts, ultrasonic transformer, first electrode piece and second electrode piece, coil rack and coil, the magnetostriction materials part is along described outer
Shell is located in the shell axially extendingly, and the ultrasonic transformer is located at the other end of the shell and closes the another of the shell
One end, the first electrode piece and the second electrode piece are respectively provided at the two ends of the magnetostriction materials part and only support described
Magnetostriction materials part, the second electrode piece is located between the ultrasonic transformer and the magnetostriction materials part and only supports described
Ultrasonic transformer and the magnetostriction materials part, the first electrode piece are electrically connected so that described with the second electrode piece with the external world
Alternation toroidal magnetic field is produced in magnetostriction materials part, the coil rack is located in the shell, the coil rack and institute
Shell is stated to be connected and be set in the magnetostriction materials part periphery, the coil around being located on the coil rack, the line
Circle is electrically connected with the external world so as to form alternation axial magnetic field in the magnetostriction materials part, axial magnetic field and longitudinal magnetic field are coupled
Form spirality magnetic field.
Magnetostriction longitudinal-torsional composite ultrasonic vibration transducer according to embodiments of the present invention, by by first electrode piece and
Two electrode slices only support the two ends of magnetostriction materials part respectively, and coil is located at the periphery of magnetostriction materials part, utilize
First electrode piece and second electrode piece are powered, magnetostriction materials part are powered to produce toroidal magnetic field indirectly, to coil
It is powered to producing axial magnetic field, so that spirality magnetic field is formed using two magnetic couplings, under the Wiedemann effect so that mangneto
Telescopic material part can produce Hybrid transducer to vibrate, and efficiently reduce energy loss, under equal conditions increase power output
With output amplitude, crudy and processing efficiency are improved, and compared with other longitudinal-torsional composite ultrasonic vibration transducers, reduce
Parts, simplify overall structure, are advantageously implemented Miniaturization Design.
In addition, magnetostriction longitudinal-torsional composite ultrasonic vibration transducer according to embodiments of the present invention, can also have as follows
Additional technical characteristic：
According to one embodiment of present invention, the direction mangneto of the first electrode piece and the second electrode piece is stretched
One side surface of compression material part is formed as conducting surface, and opposite side is formed as insulating surfaces.
According to one embodiment of present invention, applied on another side surface of the first electrode piece and the second electrode piece
It is covered with insulation material layer.
According to one embodiment of present invention, the magnetostriction longitudinal-torsional composite ultrasonic vibration transducer also includes bonnet,
The bonnet is located at one end of the shell and closes the shell, and the bonnet is bolted with the shell, described
There is gap with the shell end face in bonnet end face.
According to one embodiment of present invention, the magnetostriction materials part is Fe-Ga alloy material pieces.
According to one embodiment of present invention, the axial length of the coil rack is less than the magnetostriction materials part
Axial length, is provided with the first magnetic conduction sheet, the other end of the coil rack between one end of the coil rack and the bonnet
The second magnetic conduction sheet is provided between the ultrasonic transformer.
According to one embodiment of present invention, the internal face of the shell is provided with inwardly projecting installation base, described
Two magnetic conduction sheets are arranged on the installation base, and the coil rack and first magnetic conduction sheet are sequentially arranged at described second and lead
On magnetic sheet.
According to one embodiment of present invention, magnetostriction longitudinal-torsional composite ultrasonic vibration transducer also includes：Magnetic conduction sleeve,
The flux sleeve jacket casing is located at the coil rack periphery and coats the coil, and the magnetic conduction sleeve is located at first magnetic conduction
Between piece and second magnetic conduction sheet, magnetic conductive loop is formed.
According to one embodiment of present invention, the first electrode piece, second electrode piece and the coil are respectively by leading
Line with the external world be connected, first magnetic conduction sheet, the coil rack, second magnetic conduction sheet and it is described after cover be respectively equipped with it is suitable
In the through hole that the wire is passed through.
According to one embodiment of present invention, the bonnet and the ultrasonic transformer are matched somebody with somebody with the shell by bolt-clearance
Close.
According to one embodiment of present invention, the ultrasonic transformer includes：First bar segment, first bar segment is along the shell
It is axially extending, one end of first bar segment is stopped to the second electrode piece；Connecting portion, the connecting portion is located at described first
The periphery of bar segment, the connecting portion is connected with the shell；Second bar segment, second bar segment is along the axially extending of the shell
And be connected with first bar segment, the outer surface of second bar segment is formed as exponential decay curved surface.
Additional aspect of the invention and advantage will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by practice of the invention.
Brief description of the drawings
Fig. 1 is the structural representation of magnetostriction longitudinal-torsional composite ultrasonic vibration transducer according to embodiments of the present invention；
Fig. 2 be magnetostriction longitudinal-torsional composite ultrasonic vibration transducer according to embodiments of the present invention coil electricity after produce
Alternation axial magnetic field schematic diagram；
Fig. 3 is the magnetostriction materials part of magnetostriction longitudinal-torsional composite ultrasonic vibration transducer according to embodiments of the present invention
The alternation toroidal magnetic field schematic diagram produced after energization；
Fig. 4 is that the magnetic field superposition principle of magnetostriction longitudinal-torsional composite ultrasonic vibration transducer according to embodiments of the present invention is shown
It is intended to；
Fig. 5 is the side-looking of the coil rack of magnetostriction longitudinal-torsional composite ultrasonic vibration transducer according to embodiments of the present invention
Figure；
Fig. 6 is facing for the coil rack of magnetostriction longitudinal-torsional composite ultrasonic vibration transducer according to embodiments of the present invention
Figure；
Fig. 7 is facing for the magnetic conduction sheet of magnetostriction longitudinal-torsional composite ultrasonic vibration transducer according to embodiments of the present invention
Figure；
Fig. 8 is the side-looking of the magnetic conduction sheet of magnetostriction longitudinal-torsional composite ultrasonic vibration transducer according to embodiments of the present invention
Figure.
Reference：
100：Magnetostriction longitudinal-torsional composite ultrasonic vibration transducer；
10：Bonnet；20：Magnetostriction materials part；
30：Shell；31：Installation base；
40a：First electrode piece；40b：Second electrode piece；
50：Ultrasonic transformer；51：First bar segment；52：Connecting portion；53：Second bar segment；
60：Coil rack；61：Coil rack wire casing；70：Coil；80：Magnetic conduction sleeve；
90a:First magnetic conduction sheet；90b：Second magnetic conduction sheet；91：Magnetic conduction sheet wire casing.
Specific embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings.Below with reference to
The embodiment of Description of Drawings is exemplary, it is intended to for explaining the present invention, and be not considered as limiting the invention.
At present, in hard brittle material high-speed cutting processing, rotary ultrasonic machining is (additional super while tool heads rotate at a high speed
Audio frequency mechanical oscillation) cutting force can be reduced, mitigate tool wear, improve crudy and processing efficiency.And extensional vibration
Rotary ultrasonic machining system development it is more ripe, also develop the ultrasound of commercialization in succession in companies such as De Maji
Lathe.Relevant research shows：Additional longitudinal direction and torsional ultrasonic frequency mechanical oscillation while tool heads rotate at a high speed, that is, indulge-turn round and be multiple
Ultrasonic vibration is closed, can further reduce cutting force, improve crudy and processing efficiency.Therefore, composite rotating ultrasound is indulged-turns round to add
The design of work system is one of focus of Ultrasonic machining system research.Studying more torsional oscillation occurring mode at present has shear-polarization
Piezoelectric ceramics direct excited vibration and vertical-twisting die formula convert two kinds.Both the above mode subject matter in the application is：
(1) preparation of shear-polarization piezoelectric ceramic piece and difficulty of processing are big, are applied in combination shear-polarization and longitudinal polarization pressure
Electroceramics piece make ultrasonic transducer power it is small, and torsional moment be lost in transmittance process it is larger.
(2) vertical-torsionization is realized using flume structure more than pattern conversion type ultrasonic transducer.The device energy conversion efficiency
It is low, and there is difficult point in design, it is difficult to ensure that extensional vibration and twisting vibration resonance.
For above-mentioned some problems, the Wiedemann effect of the present invention based on magnetostriction materials (Fe-Ga) is proposed
A kind of new twisting vibration occurring mode, and devise high-power magnetostrictive longitudinal-torsional composite ultrasonic vibration transducer, should
It is the simple structure of magnetostriction longitudinal-torsional composite ultrasonic vibration transducer, compact, Miniaturization Design is advantageously implemented, and can have
Effect ground reduces energy loss, under equal conditions increases power output and output amplitude, improves crudy and processing efficiency.
First below magnetostriction longitudinal-torsional composite ultrasonic according to embodiments of the present invention is specifically described with reference to accompanying drawing 1 to Fig. 8
Vibration transducer 100.
Magnetostriction longitudinal-torsional composite ultrasonic vibration transducer 100 according to embodiments of the present invention is stretched including shell 30, mangneto
Compression material part 20, ultrasonic transformer 50, first electrode piece 40a and second electrode piece 40b, coil rack 60 and coil 70.
Specifically, magnetostriction materials part 20 is located in shell along the axially extending of shell 30, and bonnet 10 is located at outer
One end of shell 30 and one end of closed chamber, ultrasonic transformer 50 are located at the other end of shell 30 and the other end of closure, first
Electrode slice 40a and second electrode piece 40b are respectively provided at the two ends of magnetostriction materials part 20 and only support magnetostriction materials part 20,
Second electrode piece 40b is located between ultrasonic transformer 50 and magnetostriction materials part 20 and only supports ultrasonic transformer 50 and magnetostriction materials part
20, first electrode piece 40a are electrically connected with the external world with second electrode piece 40b so as to produce alternation ring in magnetostriction materials part 20
Magnetic field, coil rack 60 is located in shell 30, and coil rack 60 is connected and is set in outside magnetostriction materials part 20 with shell 30
In week, on coil rack 60, coil 70 is electrically connected so as to produce alternation in magnetostriction materials part 20 winding of coil 70 with the external world
Axial magnetic field.
In other words, the magnetostriction longitudinal-torsional composite ultrasonic vibration transducer 100 is main by shell 30, magnetostriction materials part
20th, ultrasonic transformer 50, first electrode piece 40a and second electrode piece 40b, coil rack 60 and coil 70 are constituted.Shell 30 is along vertical
Direction (above-below direction as shown in Figure 1) extends and is generally formed into the cylinder-like structure of both ends open, and shell 30 is interior to define use
In the chamber for accommodating the parts such as magnetostriction materials part 20, coil rack 60, coil 70.
Magnetostriction materials part 20 substantially forms the column extended along the axial direction of shell 30 (above-below direction as shown in Figure 1)
Structure, and magnetostriction materials part 20 is located in the chamber of shell 30, ultrasonic transformer 50 is axially extending along shell 30, and ultrasonic transformer 50
It is connected with another end opening of closure 30 with the other end (lower end as shown in Figure 1) of shell 30, it is outer such that it is able to avoid
Portion's impurity enters the inside of magnetostriction longitudinal-torsional composite ultrasonic vibration transducer 100, improves magnetostriction longitudinal-torsional composite ultrasonic and shakes
The use reliability of dynamic transducer 100.
Further, first electrode piece 40a and second electrode piece 40b are respectively provided at the two ends of magnetostriction materials part 20
(top and bottom as shown in Figure 1), end face (lower surface as shown in Figure 1) and the magnetostriction material of first electrode piece 40a
Stop to the end face (upper surface as shown in Figure 1) and magnetic of second electrode piece 40b one end (upper end as shown in Figure 1) of materials and parts 20
One end (lower end as shown in Figure 1) of telescopic material part 20 is caused to stop to the other end of second electrode piece 40b is (under as shown in Figure 1
End face) with the upper end of ultrasonic transformer 50 stop to, i.e., second electrode piece 40b is located between ultrasonic transformer 50 and magnetostriction materials part 20,
By being passed through high frequency electric to first electrode piece 40a and second electrode piece 40b, and then realization is passed through to magnetostriction materials part 20
High frequency electric, according to electromagnetic induction principle, magnetostriction materials part 20 produces high-frequency alternating ring magnetic under high frequency electric effect
Field (as shown in Figure 3).
Furthermore, coil rack 60 is generally formed into along the axially extending cylinder of shell 30, and the internal diameter of coil rack 60 is not
Less than the radial dimension of magnetostriction materials part 20, so that coil rack 60 can be set in magnetostriction materials part 20
Periphery, the winding of coil 70, when coil 70 is passed through high frequency alternating current, will form high-frequency alternating axial magnetic on coil rack 60
Field (as shown in Figure 2).
Now, user can be passed through high frequency alternating current by first electrode piece 40a and second electrode piece 40b, and then
Realization is passed through high frequency electric to magnetostriction materials part 20, meanwhile, high-frequency alternating electricity is passed through to coil 70, and ensure coil 70
The high frequency electric being passed through is identical with the power frequency of the high frequency electric that magnetostriction materials part 20 is passed through, constant phase difference, so that
So that the high-frequency alternating toroidal magnetic field that the high-frequency alternating axial magnetic field that coil 70 is produced is produced with magnetostriction materials part 20 couples
Spirality magnetic field (as shown in Figure 4) is formed, and then causes that magnetostriction materials part 20 is in spirality magnetic field, according to Wiedemann
Thus effect, magnetostriction materials part 20 will be produced with the extensional vibration and twisting vibration of frequency, such that it is able to efficiently reduce energy
Amount loss, under equal conditions increases power output and output amplitude, improves crudy and processing efficiency.
Preferably, ultrasonic transformer 50 can be bolted with shell 30, and bonnet 10 can also be by bolt with shell 30
Connection, also, during assembling, first electrode piece 40a, magnetostriction materials part 20, second electrode piece 40b are compressed in the axial direction, give
The certain pretightning force of magnetostriction materials part 20 so that extensional vibration that magnetostriction materials part 20 is produced under magnetic fields and
Twisting vibration can be delivered on ultrasonic transformer 50, meanwhile, exist between ultrasonic transformer 50 and shell 30, between bonnet 10 and shell 30
Small―gap suture coordinate, consequently facilitating realize between ultrasonic transformer 50 and shell 30, the positioning between bonnet 10 and shell 30.
Thus, magnetostriction longitudinal-torsional composite ultrasonic vibration transducer 100 according to embodiments of the present invention, by electric by first
Coil 70 is located at magnetostriction by pole piece 40a and second electrode piece 40b respectively only to the two ends of magnetostriction materials part 20
The periphery of material pieces 20, is powered, indirectly to magnetostriction materials part using to first electrode piece 40a and second electrode piece 40b
20 are powered to produce toroidal magnetic field, and coil 70 is powered to produce axial magnetic field, so as to combine produce spiral using two magnetic fields
Shape magnetic field, under the Wiedemann effect so that magnetostriction materials part 20 can produce Hybrid transducer to vibrate, and efficiently reduce energy
Loss, under equal conditions increases power output and output amplitude, improves crudy and processing efficiency, and vertical with other
Turn round composite ultraphonic vibration transducer to compare, reduce parts, simplify overall structure, be advantageously implemented Miniaturization Design.
In some embodiments of the invention, first electrode piece 40a and second electrode piece 40b towards magnetostriction materials
One side surface of part 20 is formed as conducting surface, and opposite side is formed as insulating surfaces.
Specifically, as depicted in figs. 1 and 2, the upper surface of the lower surface of first electrode piece 40a and second electrode piece 40b is
A side surface towards magnetostriction materials part 20 of conducting surface, i.e. first electrode piece 40a and second electrode piece 40b is formed as leading
Electric face, the upper surface of first electrode piece 40a and the lower surface of second electrode piece 40b are insulating surfaces, the i.e. court of first electrode piece 40a
Be formed as insulating surfaces to a side surface of bonnet 10 and the side surface towards ultrasonic transformer 50 of second electrode piece 40b, so as to keep away
Exempt from shell 30 and ultrasonic transformer 50 is powered, and then produce potential safety hazard.
For example, insulation material layer can be coated with another side surface of first electrode piece 40a and second electrode piece 40b,
So as to by coating insulation material layer so that first electrode piece 40a and second electrode piece 40b dorsad magnetostriction materials part 20
Side is formed as insulating surfaces, and then in the case where insulation is ensured, it is possible to reduce first electrode piece 40a and second electrode piece 40b
Thickness, simplify overall structure so that magnetostriction longitudinal-torsional composite ultrasonic vibration transducer 100 is compacter.
Alternatively, the axial length of coil rack 60 is less than the axial length of magnetostriction materials part 20, coil rack 60
One end and bonnet 10 between be provided with the first magnetic conduction sheet 90a, be provided with second between the other end and ultrasonic transformer 50 of coil rack 60
Magnetic conduction sheet 90b.
Specifically, as depicted in figs. 1 and 2, the upper and lower ends of coil rack 60 are respectively equipped with the first magnetic conduction sheet 90a and second
Magnetic conduction sheet 90b, the first magnetic conduction sheet 90a is located between the upper end of coil rack 60 and bonnet 10, the second magnetic conduction sheet 90b is located at coil
Between the lower end of skeleton 60 and ultrasonic transformer 50, also, coil rack 60 axial length (i.e. vertically extending length)
Less than the axial length of magnetostriction materials part 20, high frequency is passed through such that it is able to reduce coil 70 of the winding on coil rack 60
The leakage field phenomenon in the magnetic field produced after alternating current, it is ensured that the deflection of magnetostriction materials part 20.
Advantageously, the internal face of shell 30 is provided with inwardly projecting installation base 31, and the second magnetic conduction sheet 90b is arranged on and installs
On boss 31, the magnetic conduction sheet 90a of coil rack 60 and first is sequentially arranged on the second magnetic conduction sheet 90b.
Specifically, as shown in figure 1, to be provided with the inwardly projecting installation in radially direction convex for the bottom of the internal face of shell 30
Platform 31, the second magnetic conduction sheet 90b is located on the upper surface of installation base 31, and the magnetic conduction sheet 90a of coil rack 60 and first is sequentially arranged at
On second magnetic conduction sheet 90b, that is to say, that the first magnetic conduction sheet 90a, the magnetic conduction sheet 90b of coil rack 60 and second (such as Fig. 1 vertically
Shown above-below direction) it is sequentially arranged at from top to bottom on installation base 31, consequently facilitating realizing axially position, it is to avoid the first magnetic conduction
Piece 90a, the magnetic conduction sheet 90b of coil rack 60 and second downward play in process.
Wherein, magnetostriction longitudinal-torsional composite ultrasonic vibration transducer 100 also includes magnetic conduction sleeve 80, and magnetic conduction sleeve 80 is arranged
In the periphery of coil rack 60 and coil 70 is coated, magnetic conduction sleeve 80 is located between the first magnetic conduction sheet 90a and the second magnetic conduction sheet 90b.
Reference picture 1, magnetic conduction sleeve 80 is generally formed into along the axially extending tubular structure of shell 30, magnetic conduction sleeve 80
External diameter is slightly less than the internal diameter of shell 30, so that gap is formed between magnetic conduction sleeve 80 and shell 30 coordinating, is convenient for axle
To positioning, meanwhile, the internal diameter of magnetic conduction sleeve 80 is roughly equal with the maximum outside diameter of coil rack 60, so that coil 70 and line
Ring framework 60 is in what the first magnetic conduction sheet 90a, magnetostriction materials part 20, the second magnetic conduction sheet 90b and magnetic conduction sleeve 80 were limited
(i.e. magnetic conduction sleeve 80 is set in the periphery of coil rack 60 and coats coil 70, and magnetic conduction sleeve 80 is located at first and leads in closing space
Between magnetic sheet 90a and the second magnetic conduction sheet 90b), be conducive to being passed through the magnetic field that coil 70 after alternating current produces and form closing magnetic conduction and return
Road, so as to further reduce leakage field, it is ensured that the deformation quantity of magnetostriction materials part 20.
Preferably, the first magnetic conduction sheet 90a, the second magnetic conduction sheet 90b, between magnetic conduction sleeve 80 and shell 30 formed gap match somebody with somebody
Close, during assembling, bonded the first magnetic conduction sheet 90a, the second magnetic conduction sheet 90b, magnetic conduction sleeve 80, coil rack 60 using epoxy resin
Integrally, and be fixed on the inwall of shell 30, thus ensure the first magnetic conduction sheet 90a, the second magnetic conduction sheet 90b, magnetic conduction sleeve 80,
Structure entirety and the shell 30 that coil rack 60 is formed keep being relatively fixed, meanwhile, coil 70 is wrapped in coil rack vertically
On 60, gap is formed between magnetostriction materials part 20, be conducive to air cooling heat dissipation design.
In some embodiments of the invention, first electrode piece 40a, second electrode piece 40b and coil 70 are respectively by leading
Line (not shown) is connected with the external world, is respectively equipped with the first magnetic conduction sheet 90a, coil rack 60, the second magnetic conduction sheet 90b and bonnet 10
It is suitable to the through hole that wire is passed through.
Reference picture 1, Fig. 6 and Fig. 7, the first magnetic conduction sheet 90a and the second magnetic conduction sheet 90b are provided with magnetic conduction sheet wire casing 91 and (lead to
Hole), coil rack 60 is provided with coil rack wire casing 61, and bonnet 10 is provided with through hole, first electrode piece 40a, second electrode piece
40b and coil 70 are drawn by welding lead respectively, then by magnetic conduction sheet wire casing 91, coil rack wire casing 61 and bonnet 10
Through hole be connected with the external world, so as to realize the energization to magnetostriction materials part 20 and coil 70, and then generation magnetic field, connection side
Just.
Wherein, magnetostriction longitudinal-torsional composite ultrasonic vibration transducer 100 also includes bonnet 10, and bonnet 10 is located at shell 30
One end and closure 30, bonnet 10 and ultrasonic transformer 50 are bolted with shell 30, end face and the shell 30 of bonnet 10
There is gap in end face.Specifically, bonnet 10 is located at one end (upper end as shown in Figure 1) of shell 30 and is opened with one end of closed chamber
Mouthful, realize that the gap on shell axial direction is matched somebody with somebody by the way that bonnet 10 and ultrasonic transformer 50 are bolted between housing respectively
Close, can both realize that the shell 30 carried out to magnetostriction longitudinal-torsional composite ultrasonic vibration transducer 100 was closed to play guarantor
Shield is acted on, again can be by adjustment bolt pretightning force to first electrode piece 40a, second electrode piece 40b, magnetostriction materials part 20
Pretension is carried out with ultrasonic transformer 50, it is ensured that longitudinal vibration and the transmission of torsional oscillation.
Wherein, ultrasonic transformer 50 includes the first bar segment 51, the bar segment 53 of connecting portion 52 and second, and the first bar segment 51 is along shell 30
Axially extending, one end of the first bar segment 51 is stopped to second electrode piece 40b, and connecting portion 52 is located at the periphery of the first bar segment 51, connection
Portion 52 is connected with shell 30, and the second bar segment 53 is connected along the axially extending of shell 30 and with the first bar segment 51, the second bar segment 53
Outer surface forms radial dimension being gradually reduced axially outward from shell 30 of exponential decay curved surface, i.e. the second bar segment 53.
Specifically, as shown in figure 1, ultrasonic transformer 50 is mainly made up of the first bar segment 51, the bar segment 53 of connecting portion 52 and second, the
One bar segment 51 extends along the axial direction (above-below direction as shown in Figure 1) of shell 30, and the one end of the first bar segment 51 (upper end as shown in Figure 1) stops
To second electrode piece 40b, consequently facilitating extensional vibration and torsion that magnetostriction materials part 20 is produced under magnetic fields are shaken
It is dynamic to be delivered on ultrasonic transformer 50, one end (upper end as shown in Figure 1) of connecting portion 52 and the other end (such as Fig. 1 of the first bar segment 51
Shown lower end) it is connected, connecting portion 52 forms the plate-like extended along the radial direction of shell 30, and passes through with the lower end of shell 30
Bolt realizes that small―gap suture coordinates.
Second bar segment 53 is connected along the axially extending of shell 30 and with the lower end of the first bar segment 51, and the edge of the second bar segment 53
The outwardly radial size of axial direction is gradually reduced, and alternatively, the second bar segment 53 is coaxially arranged, it is necessary to illustrate with the first bar segment 51
, ultrasonic transformer 50 can be integrally formed part, or sub-assembly, meanwhile, those skilled in the art can be according to reality
The damped expoential and bar that design requirement changes at variable cross-section are long, so as to the longitudinal vibration and torsional oscillation of realizing ultrasonic transformer 50 can be in same frequencies
Resonance (resonating) under rate.
Preferably, magnetostriction materials part 20 is Fe-Ga alloy material pieces, so that using the good of Fe-Ga alloy materials
Mechanical performance and tangential force stress both can be strengthened, beneficial to twisting vibration with processing characteristics in order to fabricate
Transmission, be easy to implement high-power, large amplitude supersonic frequency twisting vibration.
Other of magnetostriction longitudinal-torsional composite ultrasonic vibration transducer 100 according to embodiments of the present invention are constituted and operated
It is for the person of ordinary skill of the art knowable, is not described in detail herein.
In the description of the invention, it is to be understood that term " " center ", " on ", D score, "front", "rear", " left side ",
The orientation or position of the instruction such as " right side ", " vertical ", " level ", " top ", " bottom " " interior ", " outward ", " axial direction ", " radial direction ", " circumference "
Relation is, based on orientation shown in the drawings or position relationship, to be for only for ease of the description present invention and simplify description, without referring to
Show or imply that the device or element of meaning with specific orientation, with specific azimuth configuration and operation, therefore must can not be managed
It is limitation of the present invention to solve.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or integrally；Can be that machinery connects
Connect, or electrically connect or can communicate each other；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, can be with
Be two element internals connection or two interaction relationships of element, unless otherwise clearly restriction.For this area
For those of ordinary skill, above-mentioned term concrete meaning in the present invention can be as the case may be understood.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means to combine specific features, structure, material or spy that the embodiment or example are described
Point is contained at least one embodiment of the invention or example.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.And, the specific features of description, structure, material or feature can be with office
Combined in an appropriate manner in one or more embodiments or example.Additionally, in the case of not conflicting, the skill of this area
Art personnel can be tied the feature of the different embodiments or example described in this specification and different embodiments or example
Close and combine.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changes, replacing and modification.
Claims (10)
1. a kind of magnetostriction longitudinal-torsional composite ultrasonic vibration transducer, it is characterised in that including：
Shell；
Magnetostriction materials part, the magnetostriction materials part is located in the shell along the axially extending of the shell；
Ultrasonic transformer, the ultrasonic transformer is located at the other end of the shell and closes the other end of the shell；
First electrode piece and second electrode piece, the first electrode piece and the second electrode piece are respectively provided at the magnetostriction
The magnetostriction materials part is simultaneously only supported in the two ends of material pieces, and the second electrode piece is located at the ultrasonic transformer and is stretched with the mangneto
Support between compression material part and only the ultrasonic transformer and the magnetostriction materials part, the first electrode piece and the second electrode
Piece is electrically connected with the external world so as to produce alternation toroidal magnetic field in the magnetostriction materials part；
Coil rack, the coil rack is located in the shell, and the coil rack is connected with the shell and is set in institute
State magnetostriction materials part periphery；
Coil, around being located on the coil rack, the coil is electrically connected so that the magnetostriction material coil with the external world
Alternation axial magnetic field is formed in materials and parts, axial magnetic field and longitudinal magnetic field couple to form spirality magnetic field.
2. magnetostriction longitudinal-torsional composite ultrasonic vibration transducer according to claim 1, it is characterised in that first electricity
One side surface of the direction magnetostriction materials part of pole piece and the second electrode piece is formed as conducting surface, and opposite side is formed
It is insulating surfaces.
3. magnetostriction longitudinal-torsional composite ultrasonic vibration transducer according to claim 2, it is characterised in that first electricity
Insulation material layer is coated with another side surface of pole piece and the second electrode piece.
4. magnetostriction longitudinal-torsional composite ultrasonic vibration transducer according to claim 1, it is characterised in that also include：Afterwards
Lid, the bonnet is located at one end of the shell and closes the shell, and the bonnet is bolted with the shell, institute
State bonnet end face and there is gap with the shell end face.
5. the magnetostriction longitudinal-torsional composite ultrasonic vibration transducer according to any one of claim 1-4, it is characterised in that
The magnetostriction materials part is Fe-Ga alloy material pieces.
6. magnetostriction longitudinal-torsional composite ultrasonic vibration transducer according to claim 4, it is characterised in that the coil bone
The axial length of frame is less than the axial length of the magnetostriction materials part, between one end of the coil rack and the bonnet
The first magnetic conduction sheet is provided with, the second magnetic conduction sheet is provided between the other end of the coil rack and the ultrasonic transformer.
7. magnetostriction longitudinal-torsional composite ultrasonic vibration transducer according to claim 6, it is characterised in that the shell
Internal face is provided with inwardly projecting installation base, and second magnetic conduction sheet is arranged on the installation base, the coil rack
It is sequentially arranged on second magnetic conduction sheet with first magnetic conduction sheet.
8. magnetostriction longitudinal-torsional composite ultrasonic vibration transducer according to claim 7, it is characterised in that also include：Lead
Magnetic sleeve, the flux sleeve jacket casing is located at the coil rack periphery and coats the coil, and the magnetic conduction sleeve is located at described
Between first magnetic conduction sheet and second magnetic conduction sheet, magnetic conductive loop is formed.
9. magnetostriction longitudinal-torsional composite ultrasonic vibration transducer according to claim 6, it is characterised in that first electricity
Pole piece, second electrode piece and the coil are connected by wire with extraneous respectively, first magnetic conduction sheet, the coil rack,
Second magnetic conduction sheet and it is described after cover to be respectively equipped with and be suitable to the through hole that the wire is passed through.
10. magnetostriction longitudinal-torsional composite ultrasonic vibration transducer according to claim 1, it is characterised in that the luffing
Bar includes：
First bar segment, first bar segment is stopped to described second along the axially extending of the shell, one end of first bar segment
Electrode slice；
Connecting portion, the connecting portion is located at the periphery of first bar segment, and the connecting portion is connected with the shell；
Second bar segment, second bar segment is connected along the axially extending of the shell and with first bar segment, second bar
The outer surface of section is formed as exponential decay curved surface.
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| CN201710035278.6A CN106807615B (en) | 2017-01-18 | 2017-01-18 | Magnetostriction longitudinal-torsional composite ultrasonic vibration transducer |
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| CN201710035278.6A CN106807615B (en) | 2017-01-18 | 2017-01-18 | Magnetostriction longitudinal-torsional composite ultrasonic vibration transducer |
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| CN106807615B CN106807615B (en) | 2019-05-28 |
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| CN109548820A (en) * | 2017-09-25 | 2019-04-02 | 佛山市顺德区美的电热电器制造有限公司 | The device of cutter and processed food |
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| CN108580240B (en) * | 2018-03-30 | 2020-10-16 | 陕西师范大学 | Two-dimensional ultrasonic radiator based on coupled vibration |
| CN108580240A (en) * | 2018-03-30 | 2018-09-28 | 陕西师范大学 | Two-dimensional ultrasound wave emitter based on coupled vibrations |
| CN110548665B (en) * | 2018-06-04 | 2021-05-25 | 佛山市顺德区美的电热电器制造有限公司 | Transducer and cooking apparatus and control method thereof |
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| CN109363929A (en) * | 2018-10-17 | 2019-02-22 | 江苏大学 | A kind of acupuncture-moxibustion therapy method and its device that ultrasonic vibration is combined with traditional acupuncture |
| CN109589506A (en) * | 2018-10-17 | 2019-04-09 | 江苏大学 | A kind of ultrasonic acupuncture and moxibustion energy converter of changeable mode of oscillation |
| CN109589506B (en) * | 2018-10-17 | 2020-07-31 | 江苏大学 | Ultrasonic acupuncture transducer capable of switching vibration modes |
| CN109363929B (en) * | 2018-10-17 | 2020-11-20 | 江苏大学 | Acupuncture method and device combining ultrasonic vibration and traditional acupuncture |
| CN109109173A (en) * | 2018-11-05 | 2019-01-01 | 清华大学 | Hot charging formula ultra-magnetic telescopic ultrasound knife handle |
| CN111162754A (en) * | 2019-12-12 | 2020-05-15 | 广东工业大学 | Magnetostrictive acoustic wave filter packaging structure and manufacturing method thereof |
| CN112170151B (en) * | 2020-09-15 | 2021-09-07 | 清华大学 | Giant magnetostrictive ultrasonic transducer, single-excitation giant magnetostrictive ultrasonic elliptical vibration tool shank and ultrasonic machining system |
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