CN107976292A - Efficient magnetic structure and vibration occurrence of equipment applied to vibration occurrence of equipment - Google Patents
Efficient magnetic structure and vibration occurrence of equipment applied to vibration occurrence of equipment Download PDFInfo
- Publication number
- CN107976292A CN107976292A CN201711404095.3A CN201711404095A CN107976292A CN 107976292 A CN107976292 A CN 107976292A CN 201711404095 A CN201711404095 A CN 201711404095A CN 107976292 A CN107976292 A CN 107976292A
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- magnetic
- equipment
- vibration
- cylinder
- magnetic cylinder
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- 239000012190 activator Substances 0.000 claims description 6
- 230000005389 magnetism Effects 0.000 claims 2
- 230000004907 flux Effects 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 4
- 230000005520 electrodynamics Effects 0.000 description 2
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
- G01M7/022—Vibration control arrangements, e.g. for generating random vibrations
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Abstract
The invention discloses the efficient magnetic structure applied to vibration occurrence of equipment, including magnetic cylinder and central magnetic pole, formed with magnetic gap between the magnetic cylinder and central magnetic pole；Wherein, the magnetic structure further includes the permanent magnet being installed in the magnetic cylinder, and the permanent magnet cooperatively forms magnet loop, the magnetic gap and the magnet loop intersection with magnetic cylinder.The invention also discloses the vibration occurrence of equipment for including the efficiently magnetic structure.The efficient magnetic structure of the present invention is with traditional compared with size magnetic circuit, and flux density improves 1/3, that is to say, that the smaller that the vibration experiment magnetic circuit of same specification can be done.
Description
Technical field
The present invention relates to vibration rig technical field, is applied to the efficient of vibration occurrence of equipment more particularly to a kind of
Magnetic structure and vibration occurrence of equipment.
Background technology
Vibration rig is to produce vibration force, and this vibration force is added to the device in other structures and equipment
Tool.Common vibration rig has electric vibration table, electromagnetic vibration generator system, electric activator, electromagnetic exciter etc..
By taking Electrodynamic Vibrators as an example, its be at work using be connected with the coil of alternating current in magnetic field stress and produce
Raw exciting force.General Electrodynamic Vibrators are that constant magnetic field is produced by permanent magnet, and moving-coil is existed by arch spring-loaded
In constant magnetic field, mandril and moving-coil are fixed together, and form the moving part of vibrator.When flowing through alternating current in moving-coil
When, moving part produces the exciting force of alternation, and exciting force is passed to test component by mandril.
The magnetic structure of existing vibration rig generally includes magnetic cylinder and central magnetic pole, and central magnetic pole is located in magnetic cylinder
Portion, and formed with magnetic gap between the rwo, the driving coil of moving coil component is distributed in the magnetic gap, when in the driving coil
When being passed through alternating current, driving coil can drive moving coil framework to pump because of the magnetic fields in the magnetic gap.
However, in magnetic structure of the prior art, magnetic density is smaller, causes magnetic structure to need to be made big.
The content of the invention
It is and traditional by using magnetic ring body it is an object of the invention to provide a kind of shake table with efficient magnetic circuit
Compared with size magnetic circuit, flux density improves 1/3, that is to say, that the smaller that the vibration experiment magnetic circuit of same specification can be done.
To achieve the above object, the present invention provides following technical solution：
An embodiment of the present invention provides a kind of efficient magnetic structure for being applied to vibration occurrence of equipment, including magnetic cylinder and center
Magnetic pole, formed with magnetic gap between the magnetic cylinder and central magnetic pole, wherein, the magnetic structure further includes installation to efficient magnetic structure
Permanent magnet in the magnetic cylinder, the permanent magnet cooperatively form magnet loop, the magnetic gap and the magnet loop intersection with magnetic cylinder.
Further, the permanent magnet is annular permanent magnet.
Further, the permanent magnet is coaxially disposed with magnetic gap.
Further, the magnetic cylinder is equipped with annular mounting groove, and the permanent magnet is installed in the mounting groove.
Further, the annular mounting groove is coaxially disposed with magnetic cylinder, permanent magnet.
Further, the magnetic cylinder includes interior magnetic cylinder and the outer magnetic cylinder set around the interior magnetic cylinder, the permanent magnet
It is arranged between outer magnetic cylinder and interior magnetic cylinder.
Further, further include be arranged between the interior magnetic cylinder and outer magnetic cylinder every magnetic device, should be every magnetic device by institute
State interior magnetic cylinder and outer magnetic cylinder is separated into two independent components, to ensure that magnet loop smoothly acts on the driving of vibration occurrence of equipment
Coil.Further, the vibration occurrence of equipment includes electric vibration table, electromagnetic vibration generator system, electric activator or electromagnetic exciting
Device.The embodiment of the present invention additionally provides a kind of vibration occurrence of equipment, including stage body and moving-coil, is provided with the stage body described
Efficient magnetic structure, and the driving coil on the moving-coil can be moved back and forth along stage body is axial in magnetic gap.
Further, the vibration occurrence of equipment swashs including electric vibration table, electromagnetic vibration generator system, electric activator or electromagnetism
Shake device.Compared with prior art, advantages of the present invention includes：
1st, high efficiency, can be effectively increased flux density；
2nd, it is easy for installation, avoid the safety problem during installation of large scale permanent magnet；
3rd, solves the feasibility that high thrust shake table uses permanent magnet.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments described in invention, for those of ordinary skill in the art, without creative efforts,
Other attached drawings can also be obtained according to these attached drawings.
Fig. 1 show the top view of shake table magnetic circuit in the specific embodiment of the invention；
Fig. 2 show the sectional view in A-A directions in Fig. 1.
Embodiment
Technical scheme is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's all other embodiments obtained without making creative work, belong to the scope of protection of the invention.
In the description of the present invention, it is necessary to explanation, term " " center ", " on ", " under ", "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, merely to
Easy to describe the present invention and simplify description, rather than instruction or imply signified device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" the 3rd " is only used for description purpose, and it is not intended that instruction or hint relative importance.
In the description of the present invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or be electrically connected；It can be directly connected, can also be indirectly connected by intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
It is a kind of electric vibration table with efficient magnetic structure that the present embodiment is related to reference to shown in Fig. 1 and Fig. 2, it is wrapped
Stage body and moving-coil are included, magnetic structure 1 is installed in the stage body, the magnetic structure 1 includes magnetic cylinder and central magnetic pole 105, magnetic
Include moving coil framework and the driving being installed on moving coil framework formed with magnetic gap 101, the moving-coil between cylinder and central magnetic pole 105
Coil 2, the driving coil 2 can move up and down in magnetic gap 101.
As the improvement of the present embodiment, the permanent magnet 3 being embedded in magnetic cylinder is further included, is matched somebody with somebody between the permanent magnet 3 and magnetic cylinder
Close the magnet loop 4 for being formed and acting on driving coil.
In the technical solution, magnet loop 4 is used to provide magnetic field in magnetic gap 101 for driving coil 2, when in driving coil 2
When being inside passed through alternating current, driving coil can drive moving coil framework to pump because of the magnetic fields in the magnetic gap.
In one embodiment, magnetic cylinder includes interior magnetic cylinder 102, the outer magnetic cylinder 103 around interior magnetic cylinder 102.
In this embodiment, magnetic cylinder is overall in a ring, its middle part forms an annular mounting groove, and permanent magnet 3 is installed on the ring
In shape mounting groove.The outer magnetic cylinder 103 and interior magnetic cylinder 102 can be coaxially disposed.
In other embodiments, outer magnetic cylinder 103 and interior magnetic cylinder 102 are discrete assembly.
In another embodiment, outer magnetic cylinder 103 can also have the axial cross section of rectangle or the section of other shapes.
Further, the bottom of interior magnetic cylinder 102 is provided with every magnetic device 5, should be divided interior magnetic cylinder and outer magnetic cylinder every magnetic device 5
Two independent components are divided into, use non-metallic material, such as rubber etc. every magnetic device, it is ensured that magnet loop smoothly acts on
Driving coil.
The embodiment of the present invention passes through embedded permanent magnet, structure between permanent magnet and magnetic cylinder in the magnetic cylinder of electric vibration table
Into magnet loop 4, compared with tradition is not provided with the magnetic circuit of permanent magnet, its magnetic density improves 1/3, that is to say, that same specification shakes
The smaller that dynamic test system magnetic circuit can be done.
In addition, the efficient magnetic structure of the present invention applies also for electromagnetic vibration generator system, electric activator or electromagnetic exciter etc.
Vibrate occurrence of equipment.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe is described in detail the present invention with reference to foregoing embodiments, it will be understood by those of ordinary skill in the art that：Its according to
Can so modify to the technical solution described in foregoing embodiments, either to which part or all technical characteristic into
Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme.
Claims (10)
1. a kind of efficient magnetic structure for being applied to vibration occurrence of equipment, including magnetic cylinder and central magnetic pole, the magnetic cylinder and center
Formed with magnetic gap between magnetic pole, it is characterised in that the magnetic structure further includes the permanent magnet being installed in the magnetic cylinder, described
Permanent magnet cooperatively forms magnet loop, the magnetic gap and the magnet loop intersection with magnetic cylinder.
2. the efficient magnetic structure according to claim 1 for being applied to vibration occurrence of equipment, it is characterised in that the permanent magnetism
Body is annular permanent magnet.
3. the efficient magnetic structure according to claim 2 for being applied to vibration occurrence of equipment, it is characterised in that the permanent magnetism
Body is coaxially disposed with magnetic gap.
4. the efficient magnetic structure for being applied to vibration occurrence of equipment according to Claims 2 or 3, it is characterised in that described
Magnetic cylinder is equipped with annular mounting groove, and the permanent magnet is installed in the mounting groove.
5. the efficient magnetic structure according to claim 4 for being applied to vibration occurrence of equipment, it is characterised in that the annular
Mounting groove is coaxially disposed with magnetic cylinder, permanent magnet.
6. the efficient magnetic structure according to claim 4 for being applied to vibration occurrence of equipment, it is characterised in that the magnetic cylinder
The outer magnetic cylinder set including interior magnetic cylinder and around the interior magnetic cylinder, the permanent magnet are arranged between outer magnetic cylinder and interior magnetic cylinder.
7. the efficient magnetic structure according to claim 6 for being applied to vibration occurrence of equipment, it is characterised in that further include and set
Be placed between the interior magnetic cylinder and outer magnetic cylinder every magnetic device, the interior magnetic cylinder and outer magnetic cylinder should be separated into two every magnetic device
Independent component, to ensure that magnet loop smoothly acts on the driving coil of vibration occurrence of equipment.
8. it is applied to the efficient magnetic structure of vibration occurrence of equipment according to claim 1, it is characterised in that the vibration is set
It is standby to include electric vibration table, electromagnetic vibration generator system, electric activator or electromagnetic exciter.
9. one kind vibration occurrence of equipment, including stage body and moving-coil, it is characterised in that claim 1-8 is installed in the stage body
Any one of efficient magnetic structure, and the driving coil on the moving-coil can along stage body it is axial in magnetic gap it is reciprocal
Movement.
10. vibration occurrence of equipment according to claim 9, it is characterised in that the vibration occurrence of equipment includes electronic shake
Dynamic platform, electromagnetic vibration generator system, electric activator or electromagnetic exciter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711404095.3A CN107976292B (en) | 2017-12-22 | 2017-12-22 | Efficient magnetic circuit structure applied to vibration generating equipment and vibration generating equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711404095.3A CN107976292B (en) | 2017-12-22 | 2017-12-22 | Efficient magnetic circuit structure applied to vibration generating equipment and vibration generating equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107976292A true CN107976292A (en) | 2018-05-01 |
| CN107976292B CN107976292B (en) | 2024-03-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711404095.3A Active CN107976292B (en) | 2017-12-22 | 2017-12-22 | Efficient magnetic circuit structure applied to vibration generating equipment and vibration generating equipment |
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08193911A (en) * | 1995-01-11 | 1996-07-30 | Akashi:Kk | Electrokinetic vibration test machine |
| US5604816A (en) * | 1991-07-25 | 1997-02-18 | Kabushiki Kaisha Nippon Memorial | Vibrator for producing a sensible vibration |
| US5894263A (en) * | 1995-12-15 | 1999-04-13 | Matsushita Electric Industrial Co., Ltd. | Vibration generating apparatus |
| CN201110257Y (en) * | 2007-11-02 | 2008-09-03 | 华中科技大学 | Moving magnetic exciter |
| CN101478209A (en) * | 2009-02-23 | 2009-07-08 | 苏州东菱振动试验仪器有限公司 | Electric vibration platform apparatus |
| CN201314863Y (en) * | 2008-12-01 | 2009-09-23 | 苏州苏试试验仪器有限公司 | Short circuit ring structure suitable for long-stroke electric vibration table |
| CN201749819U (en) * | 2010-08-02 | 2011-02-16 | 珠海许继电气有限公司 | Miniaturized permanent magnetic mechanism for high-voltage vacuum switchgear |
| WO2015080050A1 (en) * | 2013-11-28 | 2015-06-04 | Imv株式会社 | Static load holding device for electrodynamic vibration generator |
| CN204699907U (en) * | 2015-04-16 | 2015-10-14 | 厦门大学 | A kind of permanent magnet type exciting device |
| CN205673158U (en) * | 2016-05-23 | 2016-11-09 | 脉创测控装备科技（苏州）有限公司 | There is the modality vibration exciter of resultant field |
| CN207622966U (en) * | 2017-12-22 | 2018-07-17 | 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 |
-
2017
- 2017-12-22 CN CN201711404095.3A patent/CN107976292B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5604816A (en) * | 1991-07-25 | 1997-02-18 | Kabushiki Kaisha Nippon Memorial | Vibrator for producing a sensible vibration |
| JPH08193911A (en) * | 1995-01-11 | 1996-07-30 | Akashi:Kk | Electrokinetic vibration test machine |
| US5894263A (en) * | 1995-12-15 | 1999-04-13 | Matsushita Electric Industrial Co., Ltd. | Vibration generating apparatus |
| CN201110257Y (en) * | 2007-11-02 | 2008-09-03 | 华中科技大学 | Moving magnetic exciter |
| CN201314863Y (en) * | 2008-12-01 | 2009-09-23 | 苏州苏试试验仪器有限公司 | Short circuit ring structure suitable for long-stroke electric vibration table |
| CN101478209A (en) * | 2009-02-23 | 2009-07-08 | 苏州东菱振动试验仪器有限公司 | Electric vibration platform apparatus |
| CN201749819U (en) * | 2010-08-02 | 2011-02-16 | 珠海许继电气有限公司 | Miniaturized permanent magnetic mechanism for high-voltage vacuum switchgear |
| WO2015080050A1 (en) * | 2013-11-28 | 2015-06-04 | Imv株式会社 | Static load holding device for electrodynamic vibration generator |
| CN204699907U (en) * | 2015-04-16 | 2015-10-14 | 厦门大学 | A kind of permanent magnet type exciting device |
| CN205673158U (en) * | 2016-05-23 | 2016-11-09 | 脉创测控装备科技（苏州）有限公司 | There is the modality vibration exciter of resultant field |
| CN207622966U (en) * | 2017-12-22 | 2018-07-17 | 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 |
Non-Patent Citations (1)
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| 蒋孟贵;: "电动振动台动圈频率计算及动圈结构的最佳设计", 试验技术与试验机, no. 01, pages 32 - 35 * |
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| CN107976292B (en) | 2024-03-29 |
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