CN102355119A - Planar magnetic drive coupler - Google Patents
Planar magnetic drive coupler Download PDFInfo
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- CN102355119A CN102355119A CN201110300924XA CN201110300924A CN102355119A CN 102355119 A CN102355119 A CN 102355119A CN 201110300924X A CN201110300924X A CN 201110300924XA CN 201110300924 A CN201110300924 A CN 201110300924A CN 102355119 A CN102355119 A CN 102355119A
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Abstract
The invention relates to the technical field of magnetic coupling and discloses a planar magnetic drive coupler. The coupler comprises a driving magnetic disc and a driven magnetic disc, which are oppositely arranged, wherein the driving disc is radially provided with driving levitated magnetic circuits and driving circumferential torsion magnetic circuits from inside to outside in sequence; the driven disc is radially provided with driven levitated magnetic circuits and driven circumferential torsion magnetic circuits from inside to outside in sequence; the driving levitated magnetic circuits align at the driven levitated magnetic circuits; and the driving circumferential torsion magnetic circuits align at the driven circumferential torsion magnetic circuits. The planar magnetic drive coupler with such a structure has the following beneficial effects that: as the levitated magnetic circuits arranged in close push-pull combination are arranged on the driving magnetic disc and the driven magnetic disc respectively, when the driving magnetic disc carries out translation, the levitated magnetic circuits can overcome the harmful axial forces generated by the circumferential torsion magnetic circuits axially so that torsion and forces can be stably driven between the driving magnetic disc and the driven magnetic disc in a contactless manner.
Description
Technical field
The present invention relates to magnetic coupling technique field, relate in particular to a kind of plane magnetic drives coupler.
Background technology
Along with the significantly raising of permanent magnetic material performance, the ultra of permanent magnetic material has been widely used in the various transmission mechanisms apart from coupled characteristic, like magnetic coupling etc.
Plane magnetic drives coupler is a kind of common magnetic coupling, below plane of the prior art magnetic coupling is carried out brief account.
Please referring to Fig. 1-Fig. 3, Fig. 1 is the structural representation of a kind of typical plane magnetic drives coupler in the prior art; Fig. 2 is from the structural representation of movable magnetic disc among Fig. 1; Fig. 3 is the structural representation of active magnetic plate among Fig. 1.
Like Fig. 1-shown in Figure 3; This plane magnetic drives coupler comprises that initiatively magnetic plate 2 ', driven magnetic plate 1 ' active magnetic plate 2 ' are oppositely arranged with driven magnetic plate 1 '; Initiatively the magnetic circuit 3 of the circumferencial direction of magnetic plate 2 ', driven magnetic plate 1 ' is arranged for dispersed combination, and the logarithm of the magnet that dispersed combination is arranged is 6 pairs; Initiatively magnetic plate 2 ' is connected with power source, and driven magnetic plate 1 ' load connects, and drives driven magnetic plate 1 ' surfaces of revolution magnetic drives coupler and can realize contactless transmission moment of torsion and power through the be coupled bonding force of generation of magnetic field.
The magnetic circuit stressing conditions of the plane magnetic drives coupler of this structure as shown in Figure 4; When active magnetic plate 2 ' (deployed condition) under external force when the direction of arrow moves; Because of the effect of magnetic field coupling, 1. 2. magnet will produce the action of a magnetic field power F as shown in the figure to the magnet on the driven magnetic plate 1 ' (deployed condition)
Draw, F
DrawAlong continuous straight runs and vertical direction are decomposed into F
CircumferentiallyAnd F
AxiallyTwo component, F
Circumferentially=F
Draw* sina, F
Axially=F
Draw* cosa, a=arctgx/Lg, active magnetic plate 2 ' (deployed condition) continuation is moved along the direction of arrow, and the value of x constantly increases, and a angle also increases simultaneously, F
Circumferentially=F
Draw* sina also increases simultaneously, F
Axially=F
Draw* cosa reduces on the contrary, that is to say, circumferentially to transmitting useful power F
CircumferentiallyIncrease, and axially to deleterious effects power F
AxiallyReduce.
In addition, on area as shown in Figure 1, the magnet logarithm that dispersed combination is arranged is 6 pairs, and each firmly is F to having of producing of coupling
Circumferentially=F
Draw* sina, each is F to harmful power that coupling produces
Axially=F
Draw* cosa is so having on the whole area firmly is 6 * F
Circumferentially, harmful axial force is 6 * F
Axially
Can't go to overcome harmful axial force F on the plane magnetic drives coupler technologies structure of this structure
Axially, this axial force F
AxiallyThe operate as normal of plane magnetic drives coupler will be influenced.And the magnetic circuit of the plane magnetic drives coupler of this structure arranges and is the decentralized combination, and torsion or power that same volume produces down are also smaller.
Therefore, initiatively how magnetic plate eliminates harmful axial force when translation, becomes the technical barrier that those skilled in the art need to be resolved hurrily.
Summary of the invention
The purpose of this invention is to provide a kind of plane magnetic drives coupler, initiatively magnetic plate is when translation, and this plane magnetic drives coupler can be eliminated harmful axial force.
To achieve these goals; The invention provides a kind of plane magnetic drives coupler; Comprise the active magnetic plate that is oppositely arranged, driven magnetic plate; Said driving disc spacing pressing footpath inwardly to outside be provided with the magnetic circuit that initiatively suspends, the circumferential torsion magnetic circuit of active successively; Said clutch plate footpath inwardly to outside be provided with driven suspension magnetic circuit, driven circumferential torsion magnetic circuit successively, the setting of aliging with said driven suspension magnetic circuit, said driven circumferential torsion magnetic circuit respectively of said active suspension magnetic circuit, the circumferential torsion magnetic circuit of said active.
Preferably, state initiatively circumferentially two magnet rings of torsion magnetic circuit for being spliced according to the extremely alternate even number of the N utmost point, S by a plurality of magnets; Two magnet rings of said driven circumferential torsion magnetic circuit for being spliced according to the extremely alternate even number of the N utmost point, S by a plurality of magnets.
Preferably, the circumferential torsion magnetic circuit of said active, said driven circumferential torsion magnetic circuit all are separately fixed on said active magnetic plate, the said driven magnetic plate through bonding mode.
Preferably, the magnet ring of said active suspension magnetic circuit for being spliced by the same pole of a plurality of magnets; The magnet ring that said driven suspension magnetic circuit is spliced for the same pole by a plurality of magnets, and the magnetic pole of a plurality of magnets of said active suspension magnetic circuit is identical with the magnetic pole of the magnet of said driven suspension magnetic circuit.
Preferably, said active suspension magnetic circuit, said driven suspension magnetic circuit all are separately fixed on said active magnetic plate, the said driven magnetic plate through bonding mode.
Preferably, be provided with the active safety ring between the circumferential torsion magnetic circuit of said active suspension magnetic circuit and said active.
Preferably, be provided with driven safety collar between said driven suspension magnetic circuit and the said driven circumferential torsion magnetic circuit.
Plane provided by the invention magnetic drives coupler; Comprise the active magnetic plate that is oppositely arranged, driven magnetic plate; Said driving disc spacing pressing footpath inwardly to outside be provided with the magnetic circuit that initiatively suspends, the circumferential torsion magnetic circuit of active successively; Said clutch plate footpath inwardly to outside be provided with driven suspension magnetic circuit, driven circumferential torsion magnetic circuit successively, the setting of aliging with said driven suspension magnetic circuit, said driven circumferential torsion magnetic circuit respectively of said active suspension magnetic circuit, the circumferential torsion magnetic circuit of said active; Initiatively suspend magnetic circuit and driven suspension magnetic circuit forms the suspension magnetic circuit, and circumferential torsion magnetic circuit of said active and said driven circumferential torsion magnetic circuit form circumferential torsion magnetic circuit.
The plane magnetic drives coupler of this structure; On active magnetic plate, driven magnetic plate, be provided with the suspension magnetic circuit that is arranged as tight push-and-pull combination respectively; Initiatively magnetic plate is when translation; This suspension magnetic circuit can overcome circumferential torsion magnetic circuit in the harmful axial force that axially produces, and can make initiatively between the magnetic plate and driven magnetic plate contactless transmission moment of torsion and power reposefully.
Description of drawings
Fig. 1 is the structural representation of a kind of typical plane magnetic drives coupler in the prior art;
Fig. 2 is the structural representation of driven magnetic plate among Fig. 1;
Fig. 3 is the structural representation of active magnetic plate among Fig. 1
Fig. 4 is the magnetic circuit mechanical analysis sketch map of Fig. 1 midplane magnetic drives coupler;
Fig. 5 is the structural representation of a kind of embodiment of plane provided by the present invention magnetic drives coupler;
Fig. 6 is the structural representation of driven magnetic plate among Fig. 5;
Fig. 7 is the structural representation of active magnetic plate among Fig. 5;
Fig. 8 is the mechanical analysis sketch map of circumferential torsion magnetic circuit among Fig. 5;
Fig. 9 is the mechanical analysis sketch map of suspension magnetic circuit among Fig. 5;
Wherein, among Fig. 1-Fig. 9:
Driven magnetic plate 1 ', initiatively magnetic plate 2 ', magnetic circuit 3 ';
Driven magnetic plate 1, driven suspension magnetic circuit 2, driven safety collar 3, driven circumferential torsion magnetic circuit 4, initiatively circumferentially torsion magnetic circuit 5, active safety ring 6, initiatively suspend magnetic circuit 7, active magnetic plate 8.
Embodiment
In order to make those skilled in the art better understand technical scheme of the present invention, the present invention is done further detailed description below in conjunction with accompanying drawing and embodiment.
Please referring to Fig. 5-Fig. 7, Fig. 5 is the structural representation of a kind of embodiment of plane provided by the present invention magnetic drives coupler; Fig. 6 is the structural representation of driven magnetic plate among Fig. 5; Fig. 7 is the structural representation of active magnetic plate among Fig. 5.
Like Fig. 5-shown in Figure 7; Plane provided by the invention magnetic drives coupler; Comprise the active magnetic plate 8, the driven magnetic plate 1 that are oppositely arranged; Said driving disc spacing pressing footpath inwardly to outside be provided with the magnetic circuit 7 that initiatively suspends, the circumferential torsion magnetic circuit 5 of active successively; Said clutch plate footpath inwardly to outside be provided with driven suspension magnetic circuit 2, driven circumferential torsion magnetic circuit 4 successively, the setting of aliging with said driven suspension magnetic circuit 2, said driven circumferential torsion magnetic circuit 4 respectively of said active suspension magnetic circuit 7, the circumferential torsion magnetic circuit 5 of said active; The magnetic circuit 7 that initiatively suspends forms the suspension magnetic circuit with driven suspension magnetic circuit 2, and the circumferential torsion magnetic circuit 5 of said active forms circumferential torsion magnetic circuit with said driven circumferential torsion magnetic circuit 4.
In the preferred scheme, be provided with active safety ring 6 between the circumferential torsion magnetic circuit 5 of said active suspension magnetic circuit 7 and said active, be provided with driven safety collar 3 between said driven suspension magnetic circuit 2 and the said driven circumferential torsion magnetic circuit 4.
The plane magnetic drives coupler of this structure; On active magnetic plate 8, driven magnetic plate 1, be provided with the suspension magnetic circuit that is arranged as tight push-and-pull combination respectively; Initiatively magnetic plate 8 is when translation; This suspension magnetic circuit can overcome circumferential torsion magnetic circuit in the harmful axial force that axially produces, and can make initiatively between the magnetic plate 8 and driven magnetic plate 1 contactless transmission moment of torsion and power reposefully.
In the concrete scheme; Two magnet rings of the circumferential torsion magnetic circuit 5 of said active for being spliced according to the extremely alternate even number of the N utmost point, S by a plurality of magnets; In the present embodiment, initiatively circumferentially torsion magnetic circuit 5 is two magnet rings that are spliced according to the extremely alternate tight even number of the N utmost point, S by 12 pairs of magnets; Two magnet rings of said driven circumferential torsion magnetic circuit 4 for being spliced according to the extremely alternate even number of the N utmost point, S by a plurality of magnets; In the present embodiment, two magnet rings of said driven circumferential torsion magnetic circuit 4 for being spliced according to the extremely alternate tight even number of the N utmost point, S by 12 pairs of magnets.
In the concrete scheme, the magnet ring that said active suspension magnetic circuit 7 is spliced for the same pole by a plurality of magnets; The magnet ring that said driven suspension magnetic circuit 2 is spliced for the same pole by a plurality of magnets, and the magnetic pole of a plurality of magnets of said active suspension magnetic circuit 7 is identical with the magnetic pole of the magnet of said driven suspension magnetic circuit 2, can be all the N utmost point, also can be all the S utmost point.
Below in conjunction with accompanying drawing, the stressing conditions of plane provided by the present invention magnetic drives coupler is carried out brief account.
Please referring to Fig. 8, Fig. 9, Fig. 8 is the mechanical analysis sketch map of circumferential torsion magnetic circuit among Fig. 5, and Fig. 9 is the mechanical analysis sketch map of suspension magnetic circuit among Fig. 5.
Circumferentially the mechanical analysis of torsion magnetic circuit as shown in Figure 8; When active magnetic plate 8 (deployed condition) under external force when the direction of arrow moves; Effect because of the magnetic field coupling; Magnet 1. with receive simultaneously magnet 2. with magnet acting in conjunction power 3.; 1. 2. magnet produce F to magnet and push away; 1. 3. magnet produce F to magnet and draw, and F pushed away being pulled in circumferential and axial with F and carrying out force resolution simultaneously, and F pushes away and can be decomposed into F and push away circumferentially=F pushes away * and sina2 and F push shaft push away * cosa2 to=F; F draws and can be decomposed into F and draw circumferentially=and F draws * and sina1 and F pulling shaft draw * cosa1 to=F; A1=arctg (L-x)/Lg, a2=arctgx/Lg, (0≤x≤L/2); Each piece magnet absorbs the F that magnetic plate 8 initiatively gives on the driven magnetic plate 1, and circumferentially total=F draws circumferentially+and F pushes away circumferentially=F draws * and sina1+F pushes away * sina2.On the driven magnetic plate 1 each piece magnet absorb F line shaft that magnetic plate 8 initiatively gives to=| the F pulling shaft to+F push shaft to |=| F draws * cosa1+F pushes away * cosa2|.When displacement x=L/2, a1=a2, will have on the driven magnetic plate 1 on the area as shown in Figure 8 this moment because of the magnetic field coupling produce involve the magnetic force F gross area circumferentially=12 * F is always circumferential, the F gross area axially=12 * F line shaft to.
The mechanical analysis of suspension magnetic circuit as shown in Figure 9; When active magnetic plate 8 overlaps with the center of driven magnetic plate 1; Initiatively magnetic plate 8 will be scolded suspension to driven magnetic plate 1 generation power F; In order to eliminate the radially influence of unstable harmful power; L1＜L2; Wherein, L1 is the width of magnet in the magnetic circuit 7 that initiatively suspends, and L2 is the width of magnet in the driven suspension magnetic circuit 2.When active magnetic plate 8 when the direction of arrow has the offset distance x of trace to take place, (x＜(L2-L1)/2), because of L2＞L1, driven magnetic plate 1 will be applied with the restoring force of usefulness to active magnetic plate 8, can guarantee suspension magnetic circuit stable radially.
Compared with prior art; With volume or with the torque magnitude that can produce under the area; The F gross area of the plane magnetic drives coupler among Fig. 1 circumferentially=6 * F is circumferential; The F gross area of the present invention circumferentially=12 * F is always circumferential, can know according to preceding chatting, F is circumferentially total=F draws circumferentially+F pushes away circumferentially=F draws * sina1+F pushes away * sina2; When x=L/2; A1=a2, thus F draw circumferentially=F pushes away circumferentially, so F circumferentially total=2 * F draws circumferentially.The F gross area circumferentially=12 * 2 * F draws circumferentially=24 * F draws circumferentially.Can draw according to above analysis, be 1/4 of torsion of the present invention with volume or with the torsion of the generation of the plane magnetic drives coupler in area figure below 1, and the torsion of plane provided by the present invention magnetic drives coupler has improved 4 times.
In the preferred version, the circumferential torsion magnetic circuit of said active 5, said driven circumferential torsion magnetic circuit 4 can be all be separately fixed on said active magnetic plate 8, the said driven magnetic plate 1 through bonding mode.
In the preferred version, said active suspension magnetic circuit 7, said driven suspension magnetic circuit 2 can be all be separately fixed on said active magnetic plate 8, the said driven magnetic plate 1 through bonding mode.
The above only is the description of the preferred implementation of invention; Should be understood that; Because the finiteness of literal expression; And objectively have unlimited concrete structure; For those skilled in the art; Under the prerequisite that does not break away from the principle of the invention, can also make some improvement and retouching, these improvement and retouching also should be considered as protection scope of the present invention.
Claims (7)
1. plane magnetic drives coupler; Comprise the active magnetic plate that is oppositely arranged, driven magnetic plate; It is characterized in that; Said driving disc spacing pressing footpath inwardly to outside be provided with the magnetic circuit that initiatively suspends, the circumferential torsion magnetic circuit of active successively; Said clutch plate footpath inwardly to outside be provided with driven suspension magnetic circuit, driven circumferential torsion magnetic circuit successively, the setting of aliging with said driven suspension magnetic circuit, said driven circumferential torsion magnetic circuit respectively of said active suspension magnetic circuit, the circumferential torsion magnetic circuit of said active.
2. plane according to claim 1 magnetic drives coupler is characterized in that, two magnet rings of the circumferential torsion magnetic circuit of said active for being spliced according to the extremely alternate even number of the N utmost point, S by a plurality of magnets; Two magnet rings of said driven circumferential torsion magnetic circuit for being spliced according to the extremely alternate even number of the N utmost point, S by a plurality of magnets.
3. plane according to claim 2 magnetic drives coupler is characterized in that, the circumferential torsion magnetic circuit of said active, said driven circumferential torsion magnetic circuit all are separately fixed on said active magnetic plate, the said driven magnetic plate through bonding mode.
4. plane according to claim 1 magnetic drives coupler is characterized in that, the magnet ring that said active suspension magnetic circuit is spliced for the same pole by a plurality of magnets; The magnet ring that said driven suspension magnetic circuit is spliced for the same pole by a plurality of magnets, and the magnetic pole of a plurality of magnets of said active suspension magnetic circuit is identical with the magnetic pole of the magnet of said driven suspension magnetic circuit.
5. plane according to claim 4 magnetic drives coupler is characterized in that, said active suspension magnetic circuit, said driven suspension magnetic circuit all are separately fixed on said active magnetic plate, the said driven magnetic plate through bonding mode.
6. according to each described plane magnetic drives coupler of claim 1-5, it is characterized in that, be provided with the active safety ring between the circumferential torsion magnetic circuit of said active suspension magnetic circuit and said active.
7. according to each described plane magnetic drives coupler of claim 1-5, it is characterized in that, be provided with driven safety collar between said driven suspension magnetic circuit and the said driven circumferential torsion magnetic circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110300924 CN102355119B (en) | 2011-09-28 | 2011-09-28 | Planar magnetic drive coupler |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110300924 CN102355119B (en) | 2011-09-28 | 2011-09-28 | Planar magnetic drive coupler |
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| CN102355119A true CN102355119A (en) | 2012-02-15 |
| CN102355119B CN102355119B (en) | 2013-11-06 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103107674A (en) * | 2013-01-14 | 2013-05-15 | 浙江大学 | Disks of permanent magnet eddy coupling with smaller time-lag effects in disc type |
| CN103281014A (en) * | 2013-04-19 | 2013-09-04 | 北京交通大学 | Novel plane magnetic force transmission device |
| CN104266789A (en) * | 2014-10-28 | 2015-01-07 | 黑龙江大学 | Liquid pressure difference sensation method realized based on fiber bragg grating magnetic transmission pressure difference sensor |
| CN106130315A (en) * | 2016-09-09 | 2016-11-16 | 广西科技大学 | A kind of embedded magnetic actuating device |
| CN107147274A (en) * | 2017-06-30 | 2017-09-08 | 武汉理工大学 | A kind of adjustable memory permanent magnetic coupling of torque |
| CN107370336A (en) * | 2017-06-19 | 2017-11-21 | 江苏大学 | A kind of disc type speed governing magnetic coupling based on Bevel Gear Transmission |
| CN110138176A (en) * | 2019-05-23 | 2019-08-16 | 安徽沃弗电力科技有限公司 | A kind of lifting clutch type permanent magnet coupler |
| CN113346709A (en) * | 2021-05-31 | 2021-09-03 | 长沙硕博电机有限公司 | Combined electromagnetic coupling type speed reducer |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103107674A (en) * | 2013-01-14 | 2013-05-15 | 浙江大学 | Disks of permanent magnet eddy coupling with smaller time-lag effects in disc type |
| CN103281014A (en) * | 2013-04-19 | 2013-09-04 | 北京交通大学 | Novel plane magnetic force transmission device |
| CN104266789A (en) * | 2014-10-28 | 2015-01-07 | 黑龙江大学 | Liquid pressure difference sensation method realized based on fiber bragg grating magnetic transmission pressure difference sensor |
| CN106130315A (en) * | 2016-09-09 | 2016-11-16 | 广西科技大学 | A kind of embedded magnetic actuating device |
| CN107370336A (en) * | 2017-06-19 | 2017-11-21 | 江苏大学 | A kind of disc type speed governing magnetic coupling based on Bevel Gear Transmission |
| CN107370336B (en) * | 2017-06-19 | 2019-08-02 | 江苏大学 | A kind of disc type speed regulation magnetic coupling based on Bevel Gear Transmission |
| CN107147274A (en) * | 2017-06-30 | 2017-09-08 | 武汉理工大学 | A kind of adjustable memory permanent magnetic coupling of torque |
| CN110138176A (en) * | 2019-05-23 | 2019-08-16 | 安徽沃弗电力科技有限公司 | A kind of lifting clutch type permanent magnet coupler |
| CN113346709A (en) * | 2021-05-31 | 2021-09-03 | 长沙硕博电机有限公司 | Combined electromagnetic coupling type speed reducer |
| CN113346709B (en) * | 2021-05-31 | 2022-07-29 | 长沙硕博电机有限公司 | Combined electromagnetic coupling type speed reducer |
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| CN102355119B (en) | 2013-11-06 |
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