CN104343873B - Permanent-magnetic flexible damping assembly - Google Patents
Permanent-magnetic flexible damping assembly Download PDFInfo
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- CN104343873B CN104343873B CN201410448402.8A CN201410448402A CN104343873B CN 104343873 B CN104343873 B CN 104343873B CN 201410448402 A CN201410448402 A CN 201410448402A CN 104343873 B CN104343873 B CN 104343873B
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- magnetic
- magnetic pole
- pole
- permanent
- poles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F6/00—Magnetic springs; Fluid magnetic springs, i.e. magnetic spring combined with a fluid
- F16F6/005—Magnetic springs; Fluid magnetic springs, i.e. magnetic spring combined with a fluid using permanent magnets only
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention relates to the technical field of permanent magnets, in particular to a permanent-magnetic flexible damping assembly. The permanent-magnetic flexible damping assembly is characterized in that magnetic pole structures are respectively arranged on associated surfaces of a magnetic element 1 and a magnetic element 2, and magnetic pole distribution regions on the two magnetic pole structures are positioned in complementary positions arranged at an interval; the magnetism of the associated surface of the magnetic element 1 beyond the magnetic pole distribution region is an N pole, and the magnetism of the associated surface of the magnetic element 2 beyond the magnetic pole distribution region is an S pole; each magnetic pole distribution region comprises a multi-polarity surface magnetic pole zone and a surface nonpolarity magnetic pole zone, and the number of N poles on the multi-polarity surface magnetic pole zone is equal to the number of S poles plus 1; magnets 1 are arranged on the multi-polarity surface magnetic pole zones for one circle; magnets 2 are arranged on the surface nonpolarity magnetic pole zones for double circles; magnetic poles of the magnets 2 are positioned on the circumferential surface. Compared with the prior art, the permanent-magnetic flexible damping assembly has the advantages that the flexible control of axial movement can be realized, the service life is long, and the permanent-magnetic flexible damping assembly can be used and popularized as a standard component.
Description
Technical field
The present invention relates to permanent magnet technology field, more particularly to a kind of permanent magnetism flexibility damper assembly.
Background technology
Permanent magnet damping device is used widely because of its unique damping characteristic in the mechanical structure of various occasions, such as
The patent document of application number 200910025567.3 discloses the permanent-magnet damper adjusting mechanism on a kind of cable drum, works as permanent magnetism
After the air gap between the pair of two magnetic half on damper is fixed, permanent-magnet damper can provide permanently effective constant damping power
Square, and damping torque will not change with the change of the secondary relative rotation speed of two magnetic half, this advantageously ensures that twisted and released of the cable speed
That spends is steady.
Other permanent magnet damping device is also widely used in instrument and meter, and the patent document of application number 97223191.9 is disclosed
A kind of sealed anticorrosive rare-earth permanent-magnetic damper, the damper is used in induction type single-phase electric energy meter, when alternating current is by single-phase
During the potential winding of electric energy meter, an alternating flux Φ u is produced in voltage component iron core, this magnetic flux is by stretching under aluminium dish
The magnetic sheet that returns in portion constitutes magnetic loop through aluminium dish, and vortex iu is produced in aluminium dish.When alternating current passes through current coil, meeting exists
An alternating flux@, this magnetic flux is produced to pass aluminium dish by one end of iron core column in current element iron core, and by iron core column
The other end penetrate aluminium dish, so as to constitute the magnetic circuit of closure.What potential winding and current coil were produced is two alternating fluxes, this
Two alternating fluxes and its vortex interaction of generation, produce electromagnetic torque.This electromagnetic torque (i.e. rotating torque) is promoted
Aluminium dish is rotated.The vortex that the two magnetic fluxs are produced simultaneously is also mutual with the magnetic field that permanent-magnet damper (braking permanent magnet) is produced
Effect produces braking moment, and the size of braking moment is increased with the increase of aluminium dish rotating speed, is directly proportional to aluminium dish rotating speed.Only
When thering is braking moment to be balanced with rotating torque, aluminium dish uniform rotation is just can guarantee that.
What above-mentioned permanent magnet damping device was produced is all the damping torque of circumferencial direction, the axial direction damping in current conventional design
It is general to select the type of spring, spring to be divided into stage clip, extension spring, torsion spring more.When wherein selecting stage clip, need to according to product pressure value and
The requirement such as compression travel, fatigue strength, determines the span of internal-and external diameter, number of active coils and the line footpath of stage clip, when design pressure value
When larger, the physical dimension of stage clip can be very big, and this aspect increases manufacturing cost, on the other hand also makes the volume of product excessive.
In addition also there is fatigue fracture in manganese wire spring, especially during high frequency mo, can increase equipment failure rate.
The content of the invention
It is an object of the invention to provide a kind of permanent magnetism flexibility damper assembly, for those operating frequencies to be higher, pressure value compared with
Greatly, installing space is narrow or has the occasion of axial action buffer requirements, substitutes spring, realizes two flexibilities of object axial action
Control, it is to avoid collision and vibration, reduces equipment failure rate.
To achieve these goals, the technical scheme is that such：
Permanent magnetism flexibility damper assembly, including magnetic element one and magnetic element two, the magnetic element one and magnetic element
Field structure is respectively equipped with two associated surfaces, the magnetic pole distributed areas at two on field structure are in spaced mutual
Cover is put.
Association surface magnetism beyond the magnetic pole distributed areas of the magnetic element one is N poles, the magnetic element two
Association surface magnetism beyond magnetic pole distributed areas is S poles.
The magnetic pole distributed areas include the nonpolarity pole region in multipolarity surface pole region and surface.
N numbers of poles=S numbers of poles+1 on the pole region of the multipolarity surface.
Multipolarity surface pole region is provided with the magnet one of individual pen arrangement.
The nonpolarity pole region in surface is provided with the magnet two of double-round arrangement.
The magnetic pole of the magnet two is located on its circumferential surface.
Compared with prior art, the beneficial effects of the invention are as follows：
1) it is particularly well-suited to that those operating frequencies are higher, pressure value is larger, installing space is narrow or there are action buffer requirements
Occasion, two Flexible Controls of object axial action can be realized, it is to avoid collision, its operating life close to limitless, so can
Significantly reduce equipment failure rate；
2) because the big I of the magnetic force of magnetic element is magnetized strength control by adjustment, therefore the scope of application is extremely wide, small to arrive
Electronic product, greatly to large scale equipments such as train or lathes, can be as standard component application and popularizations.
Brief description of the drawings
Fig. 1 is the magnetic pole distributed architecture schematic diagram of magnetic element of the present invention；
Fig. 2 is the magnetic pole distributed architecture schematic diagram of magnetic element of the present invention two；
Fig. 3 is the example structure schematic diagram of magnetic element of the present invention；
Fig. 4 is the example structure schematic diagram of magnetic element of the present invention two；
Fig. 5 be damper assembly of the present invention be in related job state when perspective view；
Fig. 6 be damper assembly of the present invention be in related job state when Distribution of Magnetic Field structural representation.
In figure：1- magnetic elements one, 2- magnetic elements two, 3- magnetic poles distributed areas, 4- multipolarities surface pole region, 5- tables
Face is nonpolarity pole region, 61- surface magnets one, 62- surface magnets two, 71- circumference magnet one, 72- circumference magnet two.
Specific embodiment
Specific embodiment of the invention is described further below in conjunction with the accompanying drawings：
See Fig. 1, Fig. 2, be the magnetic pole distributed architecture schematic diagram of magnetic element of the present invention, including magnetic element 1 and magnetic
Element 22, is respectively equipped with field structure, at two on field structure in magnetic element 1 and the associated surfaces of magnetic element 22
Magnetic pole distributed areas 3 be in spaced complimentary positions on, the magnetic pole distributed areas include the He of multipolarity surface pole region 4
Surface is nonpolarity pole region 5.In order to realize the combined effect of suction+repulsion, make component bigger in a repulsion after combining
Relative status, realize flexible damping, the N numbers of poles=S numbers of poles+1 on multipolarity surface pole region 4.On multipolarity surface
Pole region 4 is provided with the high-coercivity magnet of individual pen arrangement, and magnetic pole is located on the association surface of magnet.In the nonpolarity magnetic pole in surface
Area 5 is provided with the high-coercivity magnet of double-round arrangement, and the magnetic pole of magnet is located on its circumferential surface, and the pole polarity is divided with magnetic pole
Association surface magnetism beyond cloth region is opposite.
In embodiment, Fig. 3, Fig. 4 are seen, magnetic element 1 is identical with the outside diameter of magnetic element 22, magnetic element 1
On multipolarity surface pole region 4 29 surface magnets 1 are distributed with, wherein 15 N poles, 14 S poles；It is nonpolarity on surface
Pole region 5 is provided with 25 circumference magnets 1, wherein outer layer distribution 15, internal layer distribution 10, surface magnet 1 and circle
All magnets 1 are circle, and diameter is identical；Association surface magnetism beyond the magnetic pole distributed areas of magnetic element 1 is N poles,
The magnetic of circumference magnet 1 is S poles.
43 circumference magnets 2 72, wherein outer layer distribution 28 are distributed with the nonpolarity pole region 5 in surface of magnetic element 22
Individual, internal layer is distributed 15；5 surface magnets 2 62 are provided with its multipolarity surface pole region 4, wherein three N poles, two S
Pole.Association surface magnetism beyond the magnetic pole distributed areas of magnetic element 22 is S poles, and the circumference magnetic pole of circumference magnet 2 72 is N
Pole.
See Fig. 5, be damper assembly of the present invention be in related job state when perspective view, in order that magnetic element one
1 and magnetic element 22 on magnetic pole distributed areas can be maintained on relatively complementary position, the two can be embedded in respective respectively
It is oriented to or is installed using other types of attachment by lead column on nonmetallic base, it is necessary to keeps coaxial.
See Fig. 6, be damper assembly of the present invention be in related job state when Distribution of Magnetic Field structural representation, when magnetic unit
When part 1 and magnetic element 22 are in coaxial state, the magnetic pole distributed areas on two elements form magnetic respectively in complimentary positions
, when two elements are close, magnetic field is compressed, and produces repulsion summation to be more than the suction of magnetic element periphery anisotropy field, because
This shows repulsion；When two elements leave, magnetic field shows weak suction because distance increase repulsion is reduced, such two magnetic
Element could show stronger mutual expelling force within a distance of 6mm, and weaker phase suction is being shown at a distance of 10mm or so, realize
The stable damping buffering effect of axial action.
Claims (6)
1. permanent magnetism flexibility damper assembly, including magnetic element one and magnetic element two, it is characterised in that the magnetic element one with
Field structure is respectively equipped with the associated surfaces of magnetic element two, the magnetic pole distributed areas at two on field structure are in interval
In the complimentary positions of arrangement；Association surface magnetism beyond the magnetic pole distributed areas of the magnetic element one is N poles, the magnetic
Association surface magnetism beyond the magnetic pole distributed areas of element two is S poles.
2. permanent magnetism according to claim 1 flexibility damper assembly, it is characterised in that the magnetic pole distributed areas include multipole
Property surface pole region and the nonpolarity pole region in surface.
3. permanent magnetism according to claim 2 flexibility damper assembly, it is characterised in that on the pole region of the multipolarity surface
N numbers of poles=S numbers of poles+1.
4. permanent magnetism according to claim 2 flexibility damper assembly, it is characterised in that the multipolarity surface sets on pole region
There is the magnet one that individual pen is arranged.
5. permanent magnetism according to claim 2 flexibility damper assembly, it is characterised in that set on the nonpolarity pole region in surface
There is the magnet two that double-round is arranged.
6. permanent magnetism according to claim 5 flexibility damper assembly, it is characterised in that the magnetic pole of the magnet two is justified positioned at it
In perimeter surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410448402.8A CN104343873B (en) | 2014-08-29 | 2014-08-29 | Permanent-magnetic flexible damping assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410448402.8A CN104343873B (en) | 2014-08-29 | 2014-08-29 | Permanent-magnetic flexible damping assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104343873A CN104343873A (en) | 2015-02-11 |
| CN104343873B true CN104343873B (en) | 2017-05-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410448402.8A Active CN104343873B (en) | 2014-08-29 | 2014-08-29 | Permanent-magnetic flexible damping assembly |
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| CN (1) | CN104343873B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105537927B (en) * | 2016-02-03 | 2017-10-20 | 中山市工业技术研究中心 | A kind of utilization magnetic field repulses power realizes the submissive buffer gear and method of peg-in-hole assembly |
| CN116352493A (en) * | 2021-12-10 | 2023-06-30 | 安徽科技学院 | Self-cleaning efficient machining numerical control machine tool and machining method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000337434A (en) * | 1999-05-25 | 2000-12-05 | Delta Tooling Co Ltd | Vibration mechanism |
| CN2649742Y (en) * | 2003-11-18 | 2004-10-20 | 谢伯年 | Fixing device with repel force magnetic assembly |
| CN100340792C (en) * | 2004-06-02 | 2007-10-03 | 哈尔滨工业大学 | Permanent magnetic frictioning dissipative apparatus |
| CN202883868U (en) * | 2012-10-31 | 2013-04-17 | 苏州萃智新技术开发有限公司 | Magnetic levitation adjustable damper |
| CN204099473U (en) * | 2014-08-29 | 2015-01-14 | 刘畅 | The flexible damper assembly of permanent magnetism |
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| Publication number | Publication date |
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| CN104343873A (en) | 2015-02-11 |
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Effective date of registration: 20160526 Address after: 114016, 22, Qi Qi Road, Qianshan District, Liaoning, Anshan Applicant after: Ma Zhongwei Address before: 114000 Liaoning Province, Anshan city high mountain road Vanke Park building 21, 1062 Applicant before: Liu Chang |
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| GR01 | Patent grant |