CN205673158U - There is the modality vibration exciter of resultant field - Google Patents
There is the modality vibration exciter of resultant field Download PDFInfo
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- CN205673158U CN205673158U CN201620472192.0U CN201620472192U CN205673158U CN 205673158 U CN205673158 U CN 205673158U CN 201620472192 U CN201620472192 U CN 201620472192U CN 205673158 U CN205673158 U CN 205673158U
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Abstract
The utility model discloses a kind of modality vibration exciter with resultant field, including permanent magnet, moving coil component, magnetic cylinder body and bearing assembly, this permanent magnet is installed in magnetic cylinder body, this moving coil component is connected with magnetic cylinder body by bearing assembly, the coil that drives of this moving coil component is arranged in the air gap in magnetic cylinder body, is additionally provided with least one set magnet exciting coil, when being passed through exciting curent in magnet exciting coil in this magnetic cylinder body, the magnetic direction that magnet exciting coil produces with permanent magnet is identical, and superposition in air gap.The utility model is without significantly adjusting to the structure of existing Electrodynamic Vibrators, set up magnet exciting coil in the original space in magnetic cylinder body, can be with permanent magnet collaborative work, make the magnetic field intensity in air gap adjustable, the magnetic field intensity in air gap particularly can be made to be substantially improved, so that the exciting force that vibrator provides significantly is strengthened, and make described vibrator can meet the demand of different actual application.
Description
Technical field
The utility model relates to a kind of excitational equipment, particularly a kind of modality vibration exciter with resultant field, can apply
In the test of mould shape and analysis.
Background technology
Vibrator is to produce vibration force, and the apparatus being added to this vibration force in other structures and equipment.Electronic
Formula vibrator be utilize be connected with the coil of alternating current in magnetic field stress and produce exciting force.Traditional Electrodynamic Vibrators is
Permanent magnet is produced constant magnetic field, moving-coil by the supporting members support such as arch spring in constant magnetic field, push rod and dynamic
Circle is fixed together, the moving part of composition vibrator.When flowing through alternating current in moving-coil, moving part produces swashing of alternation
Shake power, and by push rod, exciting force is passed to test component.But this kind of Electrodynamic Vibrators is because of the permanent magnet energy using
Enough magnetic field intensities providing are constant and generally less, so bigger exciting force cannot be provided, also cannot meet different test need
Ask.
Utility model content
The purpose of this utility model is to provide a kind of modality vibration exciter with resultant field, and it has, and volume is little, exciting
The features such as power is adjustable, and the exciting force of existing Electrodynamic Vibrators can be substantially improved, thus overcome the deficiencies in the prior art.
For realizing aforementioned invention purpose, the technical solution adopted in the utility model is as follows:
The utility model embodiment provides a kind of modality vibration exciter with resultant field, and it includes permanent magnet, moving-coil
Assembly, magnetic cylinder body and bearing assembly, described permanent magnet is installed in described magnetic cylinder body, described moving coil component by bearing assembly with
Magnetic cylinder body connects, and the coil that drives of described moving coil component is arranged in the air gap in described magnetic cylinder body, also sets in described magnetic cylinder body
Having least one set magnet exciting coil, when being passed through exciting curent in described magnet exciting coil, described magnet exciting coil produces with permanent magnet
Magnetic direction identical, and the magnetic field that described the magnet exciting coil magnetic field and the described permanent magnet that produce produce is folded in described air gap
Add.
In some embodiments, described magnet exciting coil is arranged around described permanent magnet.
In some embodiments, described magnetic cylinder body is tubular structure, and its upper end radially convexes to form annular protrusion
Sidewall, and and be arranged between the outer peripheral edge of the magnetic cylinder cap above permanent magnet formation annulus gap.
In some embodiments, the local interior wall of described magnetic cylinder body is recessed along outer radial, thus with in described magnetic cylinder body
Forming the annular compartment that can house described magnet exciting coil in chamber, described annular compartment is arranged around described permanent magnet.
In some embodiments, described moving coil component includes moving coil framework and drives coil, described moving coil framework upper end
Being fixed with push rod, described driving coil is fixed on moving coil framework lower end.
In some embodiments, described magnetic cylinder upper end face is additionally provided with moving coil component cover body, on described moving coil component
End is fixed with push rod, and one end of described push rod is leant out and be positioned at outside cover body by the through hole that covering on top is offered.
Compared with prior art, the beneficial effects of the utility model include: this modality vibration exciter with resultant field exists
In the case of without the structure of existing Electrodynamic Vibrators is significantly adjusted, by the original idle space in magnetic cylinder body
Inside set up magnet exciting coil, the magnetic field intensity in air gap can be made adjustable, in particularly can making air gap with permanent magnet collaborative work
Magnetic field intensity be substantially improved so that the exciting force that vibrator provides significantly is strengthened, and make described vibrator permissible
Meet the demand of different actual application.
Brief description
Below with reference by drawings and Examples, the technical solution of the utility model is further elaborated.
Fig. 1 is the top view of a kind of Electrodynamic Vibrators in the utility model embodiment；
Fig. 2 is that the B-B of Electrodynamic Vibrators shown in Fig. 1 is to part section structural representation；
Description of reference numerals: magnetic cylinder body the 1st, permanent magnet the 2nd, magnetic cylinder cap the 3rd, air gap the 4th, magnet exciting coil 5.
Detailed description of the invention
In view of deficiency of the prior art, inventor, through studying for a long period of time and putting into practice in a large number, is proposed this practicality new
The technical scheme of type.This technical scheme, its implementation process and principle etc. will be further explained as follows.
Refering to shown in Fig. 1-Fig. 2, a kind of Electrodynamic Vibrators that the present embodiment relates to includes magnetic cylinder body the 1st, permanent magnet the 2nd, magnetic
Cylinder cap the 3rd, magnet exciting coil the 5th, moving coil component and bearing assembly (not shown) etc..
Wherein, described permanent magnet 2 is installed in described magnetic cylinder body 1.Described permanent magnet 2 is arranged over magnetic cylinder cap 3.Described magnetic
Cylinder body 1 is tubular structure, and described magnetic cylinder body 1 upper end radially convexes to form the sidewall of annular protrusion, and be arranged on forever
Form annulus gap 4 between the outer peripheral edge of the magnetic cylinder cap above magnet.Described moving coil component is by bearing assembly with magnetic cylinder body even
Connect, and the coil that drives of described moving coil component is arranged at (not shown) in the air gap in described magnetic cylinder body.
Wherein, the local interior wall of described magnetic cylinder body is recessed along outer radial, thus can with formation in described magnetic inner chamber of cylinder block
The annular compartment of accommodating least one set magnet exciting coil, described annular compartment is arranged around described permanent magnet, in described annular compartment
Being provided with described magnet exciting coil 5, described magnet exciting coil is arranged around described permanent magnet.Excitatory when being passed through in described magnet exciting coil
During electric current, the magnetic direction that described magnet exciting coil produces with permanent magnet is identical, and described magnet exciting coil produce magnetic field with described
Magnetic field superposition in described air gap that permanent magnet produces.
Further, described moving coil component includes moving coil framework and drives the (not shown)s such as coil, described moving-coil bone
Frame upper end is fixed with push rod, and described driving coil is fixed on moving coil framework lower end.
Further, described magnetic cylinder upper end face is additionally provided with moving coil component cover body (not shown), described moving-coil group
Part upper end is fixed with push rod, and one end of described push rod is leant out and be positioned at outside cover body by the through hole that covering on top is offered.
Aforementioned permanent magnet preferably employs the hard magnetic material of high magnetic characteristics, such as rare earth permanent-magnetic material-neodymium iron boron contour magnetic material
Material.Aforementioned abutment can select spring leaf bearing assembly etc..In addition, described Electrodynamic Vibrators also can comprise bearing assembly
Deng.
Electrodynamic Vibrators of the present utility model can design based on existing Electrodynamic Vibrators, it is not necessary to existing electrodynamic type
The structure of vibrator significantly adjusts, and only need to set up more than one group excitation wire in the magnetic inner chamber of cylinder block of Electrodynamic Vibrators
Circle, by being passed through exciting curent in magnet exciting coil, and makes the magnetic field of magnetic field that magnet exciting coil produces and permanent magnet generation at gas
Superposition in gap, (magnetic field that for example, existing permanent magnet produces is only for the operating fields intensity can being substantially improved in Electrodynamic Vibrators
About about 0.1～0.3 tesla, and by setting up described magnet exciting coil, operating fields intensity can reach more than 1.2 teslas),
And then the exciting force of Electrodynamic Vibrators is significantly strengthened.Wherein, also by the size adjusting aforementioned exciting curent,
The magnetic field intensity that magnet exciting coil is produced is adjustable so that Electrodynamic Vibrators can provide different exciting force levels, thus
Meet the demand of different actual application.
Electrodynamic Vibrators of the present utility model can be widely suitable for aircraft, automobile, house, bridge and household electrical appliance
Vibration test, dynamic mechanical analysis Deng structural member.
It should be appreciated that above-described embodiment only illustrates that technology of the present utility model is conceived and feature, its object is to allow ripe
The personage knowing technique will appreciate that content of the present utility model and implements according to this, can not limit of the present utility model with this
Protection domain.All equivalence changes made according to the utility model Spirit Essence or modify, all should cover of the present utility model
Within protection domain.
Claims (6)
1. there is a modality vibration exciter for resultant field, including permanent magnet, moving coil component, magnetic cylinder body and bearing assembly, described
Permanent magnet is installed in described magnetic cylinder body, and described moving coil component is connected with magnetic cylinder body by bearing assembly, described moving coil component
Coil is driven to be arranged in the air gap in described magnetic cylinder body, it is characterised in that: it is additionally provided with least one set excitation in described magnetic cylinder body
Coil, when being passed through exciting curent in described magnet exciting coil, the magnetic direction that described magnet exciting coil produces with permanent magnet is identical,
And the magnetic field that described magnet exciting coil produces superposes in described air gap with the magnetic field that described permanent magnet produces.
2. the modality vibration exciter with resultant field according to claim 1, it is characterised in that: described magnet exciting coil cincture
Described permanent magnet is arranged.
3. the modality vibration exciter with resultant field according to claim 1, it is characterised in that: described magnetic cylinder body is tubular
Structure, radially convexes to form the sidewall of annular protrusion, and the periphery with the magnetic cylinder cap being arranged on above permanent magnet in its upper end edge
Form annulus gap between edge.
4. the modality vibration exciter with resultant field according to claim 3, it is characterised in that: the local of described magnetic cylinder body
Inwall is recessed along outer radial, thus can house the annular compartment of described magnet exciting coil, institute with formation in described magnetic inner chamber of cylinder block
State annular compartment to arrange around described permanent magnet.
5. the modality vibration exciter with resultant field according to claim 1, it is characterised in that: described moving coil component includes
Moving coil framework and driving coil, described moving coil framework upper end is fixed with push rod, and described driving coil is fixed on moving coil framework lower end.
6. the modality vibration exciter with resultant field according to claim 1, it is characterised in that: described magnetic cylinder upper end face
Being additionally provided with moving coil component cover body, described moving coil component upper end is fixed with push rod, and one end of described push rod is offered by covering on top
Through hole lean out and be positioned at outside cover body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620472192.0U CN205673158U (en) | 2016-05-23 | 2016-05-23 | There is the modality vibration exciter of resultant field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620472192.0U CN205673158U (en) | 2016-05-23 | 2016-05-23 | There is the modality vibration exciter of resultant field |
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| Publication Number | Publication Date |
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| CN205673158U true CN205673158U (en) | 2016-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620472192.0U Active CN205673158U (en) | 2016-05-23 | 2016-05-23 | There is the modality vibration exciter of resultant field |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107976292A (en) * | 2017-12-22 | 2018-05-01 | 脉创测控装备科技（苏州）有限公司 | Efficient magnetic structure and vibration occurrence of equipment applied to vibration occurrence of equipment |
-
2016
- 2016-05-23 CN CN201620472192.0U patent/CN205673158U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107976292A (en) * | 2017-12-22 | 2018-05-01 | 脉创测控装备科技（苏州）有限公司 | Efficient magnetic structure and vibration occurrence of equipment applied to vibration occurrence of equipment |
| CN107976292B (en) * | 2017-12-22 | 2024-03-29 | 脉创测控装备科技（苏州）有限公司 | Efficient magnetic circuit structure applied to vibration generating equipment and vibration generating equipment |
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| GR01 | Patent grant |