CN102215018A - Basic structure for magnetic suspension - Google Patents
Basic structure for magnetic suspension Download PDFInfo
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- CN102215018A CN102215018A CN2010101428475A CN201010142847A CN102215018A CN 102215018 A CN102215018 A CN 102215018A CN 2010101428475 A CN2010101428475 A CN 2010101428475A CN 201010142847 A CN201010142847 A CN 201010142847A CN 102215018 A CN102215018 A CN 102215018A
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Abstract
The invention discloses a basic structure for magnetic suspension. The basic structure for the magnetic suspension is formed by attracting opposites of end faces of magnetic blocks (1), (2) and (3) and connecting together, wherein permanent magnet waves (4) which are vertical to a magnetizing direction are generated around the connected end faces; and an independent side magnetic field (5) is formed on a side face of each magnetic block.
Description
Affiliated technical field
The present invention relates to be used for maglev foundation structure, the first, under magnet ring end face there is a natural attraction between the sexes state, the magnet ring side still can produce radial magnetic field, and this magnetic field has radial suspension force; It two is, when two magnetic patch end face homopolarities are relative, place magnetic conductor between the homopolarity end face, this moment, magnetic patch side and magnetic conductor side can both go out magnetic field, this magnetic field energy is enough in the radial suspension of magnetic suspension bearing, and the pushing tow or the suction formula mutually that also can be used in magnetic suspension train suspend; It three is, the magnet ring antipole of two different-diameters is relative, and the opposing end surface chamfering, and can produce axial suspension power between two magnet rings this moment, and its end face chamfering is big more, and radially suction can be low more.Belong to the magnetic levitation technology field.
Background technology
Before for many years, more external researchers that do the permanent magnetism magnetic suspension bearing once write a book, a kind of similar axial magnetic bearing structure has been introduced in the book the inside, but conclusion wherein is a permanent magnetic material can not realize magnetic suspension bearing, more can not realize having the high radial power magnetic suspension of industrial application value.Britain has a people who does magnetic suspension bearing to repeat the test of front mistake again afterwards, and the conclusion that draws is that permanent magnetic material can not be realized magnetic suspension bearing equally.The magnetic suspension bearing expert of some domestic colleges and universities thinks that all permanent magnetic material can not realize the magnetic suspension of high radial power, and does not also have production to come out before us, abroad also for seeing that having practical value permanent magnetism magnetic suspension bearing occurs.
In " big radial clearance magnetic suspension bearing " patent, we have set forth the reason why the foreign study personnel do not test out magnetic suspension bearing, and have designed the radial magnetic bearing sample with practical value.But the phenomenon that the magnetic patch demagnetization still occurred.Through the test of 6 wheat harvesting periods several thousand times, finally found the method that prevents to demagnetize and improve suspending efficiency.
Summary of the invention
Principle of the present invention is the first, when two magnetic patch are in end face there is a natural attraction between the sexes state, still can produce side direction magnetic field around two end face outside.
It two is, when two magnetic patch end faces are in homopolarity when relative, places a magnetic conduction iron block in the middle of two magnetic patch, and this moment, iron block was exactly an emitter, can attract the disturbing wave that two magnetic patch homopolarity end faces produce come, and sent out from the side; Can also reduce the mutual repulsive force of homopolar field in addition, stop the magnetic patch demagnetization.Can prolong the emissive porwer of the life and the raising disturbing wave of magnetic patch like this, also just can improve the suspension load of magnetic suspension bearing or magnetic suspension train.
Can adjust the size of this iron block or the position of placing in addition, when the global sections of iron block during less than the cross section of magnetic patch, as long as between iron block and the magnetic patch the parallel phenomenon in edge is arranged, parallel place, iron block edge will become an emitter, outwards emission magnetic field utilizes this phenomenon can control the transmit direction in disturbing wave magnetic field.When iron block was given prominence to the magnetic patch edge, the permanent magnetism on the iron block disturbed the wave-wave emissive porwer also can strengthen.
It three is, the magnet ring of two different-diameters is installed on the concentric shafts, antipole relatively, be arranged in parallel, and opposing end surface chamfering all, can produce axial suspension power between two magnet rings this moment, its end face chamfering is big more, the radially suction between two magnet rings can be low more.
Utilize above-mentioned three kinds of magnetic suspension basic structures to carry out mutual permutation and combination, can produce the magnetic suspension bearing of various ways.
Magnetic patch and magnetic conductor itself can also carry out shapes such as taper, trapezoidal or convex concave and change in addition.
Description of drawings
Fig. 1 is the radial section structural map of the side direction suspension magnetic under magnetic patch end face of the present invention there is a natural attraction between the sexes the state.
Fig. 2 is the radial section structural map that the magnetic suspension foundation structure of magnetic conduction iron block is arranged between the homopolarity opposing end surface of the present invention.
Fig. 3 is the repel each other radial section structural map of foundation structure of end face chamfering magnet ring antipole of the present invention.
Fig. 4 is the radial section structural map that middle magnetic conduction iron block of the present invention protrudes in the magnetic suspension foundation structure of extruding magnetic patch side, two ends.
Fig. 5 is the radial section structural map of middle magnetic conduction iron block of the present invention less than the magnetic suspension architecture in extruding magnetic patch cross section, two ends.
Fig. 6 is that middle iron block of the present invention is greater than extruding magnetic patch cross section, two ends, the radial section structural map of the magnetic suspension architecture at iron block edges cover magnetic patch edge simultaneously.
Fig. 7 combines the radial section structural map of the radial magnetic bearing of formation to four kinds of foundation structures such as Fig. 1, Fig. 2, Fig. 4 and Fig. 5.
Fig. 8 is a basic principle of utilizing Fig. 3, the radial section structural map of the axial magnetic suspension bearing that forms in conjunction with Fig. 5 foundation structure.
The present invention will be further described below in conjunction with accompanying drawing.
Among Fig. 1, magnetic patch (1), (2), there is a natural attraction between the sexes for (3) end face, links together; Permanent magnetism ripple (4) perpendicular to magnetizing direction is arranged around its connection end face, and all there are independently magnetic field, side (5) in each magnetic patch side.
Among Fig. 2, two magnetic patch (1) homopolarity end face is relative, mutual extrusion; Iron block (2) is positioned at the centre of two magnetic patch (1), and high density disturbing wave (3) sends from iron block (2) side.
Among Fig. 3, end face chamfering bead (1) and the big magnet ring of end face chamfering (2) are arranged in parallel with one heart, and antipole is relative; Opposing end surface is fillet surface.Can produce axial repulsion between two magnet rings this moment, and radially suction can reduce because of the existence of chamfering.
Among Fig. 4, two magnetic patch (1) homopolarity end face is relative, mutual extrusion; Iron block (2) is positioned at the centre of two magnetic patch (1); (2) sides of iron block protrude in the side of both sides magnetic patch (1); The high density disturbing wave (4) that the high density disturbing wave (3) that the outstanding limit of iron block (2) produces produces greater than other zones.
Among Fig. 5, two magnetic patch (1) homopolarity end face is relative, mutual extrusion; Iron block (2) is positioned at the centre of two magnetic patch (1); The side of iron block (2) is less than the end face of both sides magnetic patch (1), and this moment, the high density disturbing wave (3) of iron block side can send from the zone that is parallel to magnetic patch (1) side.
Among Fig. 6, two magnetic patch (1) homopolarity end face is relative, mutual extrusion; Iron block (2) is positioned at the centre of two magnetic patch (1); (2) sides of iron block protrude in the side of both sides magnetic patch (1), and cover the edge of two magnetic patch (1); The high density disturbing wave (4) that the high density disturbing wave (3) that the outstanding limit of iron block (2) produces produces greater than other zones.
Sum up Fig. 4, Fig. 5 and three kinds of foundation structures of Fig. 6, in the time of can finding a magnetic conductor deflection or an outstanding side, disturbing wave can be directed into a deflection or an outstanding side.Just magnetic conductor can guide permanent magnetism to disturb wave line of propagation.
Fig. 7 is four kinds of radial magnetic bearings that foundation structure combines such as Fig. 1, Fig. 2, Fig. 4 and Fig. 5, there is a natural attraction between the sexes links together for wherein big magnet ring (1) and big magnet ring (1a) end face, big magnet ring (2) and greatly magnet ring (2a) end face there is a natural attraction between the sexes links together, there is a natural attraction between the sexes links together for bead (3) and bead (3a) end face, there is a natural attraction between the sexes links together for bead (4) and bead (4a) end face; All there is annular natural permanent magnetism ripple (9) in the junction of every group of magnetic patch; Big magnet ring (1a) is arranged with big magnet ring (2) homopolarity opposing parallel; Big magnet ring (1a) with between the magnet ring (2) annular magnetizer (5) is arranged greatly, the internal diameter of magnetic conductor (5) and external diameter are all less than the internal diameter and the external diameter of the big magnet ring in both sides; The inboard annular permanent magnet disturbing wave (6) that produces of magnetic conductor (5); Bead (3) is arranged with bead (4a) homopolarity opposing parallel; Between bead (3) and the bead (4a) annular magnetizer (7) is arranged; Magnetic conductor (7) outside produces annular permanent magnet disturbing wave (8); Annular permanent magnet disturbing wave (6) is identical with permanent magnetism disturbing wave (8) polarity; Have repulsive force between each annular natural permanent magnetism ripple (9) of homopolarity, can improve the radial suspension force of bearing.
Spread pattern between magnetic conductor among Fig. 7 (5) and the big magnet ring is to develop to form on the basis of Fig. 4 and Fig. 5.That is to say by above-mentioned foundation structure, can form the magnetic suspension bearing design of various ways.Suspension distance between big in addition magnet ring and the bead can be adjusted within the 0--20 millimeter.
Fig. 8 is the axial magnetic suspension bearing that develops and form on the basis of Fig. 3; Wherein big magnet ring (1) and big magnet ring (2) end face homopolarity opposing parallel are arranged, and annular magnetizer (5) is positioned between big magnet ring (1) and the big magnet ring (2), produces big annular disturbing wave (6); Bead (3) and bead (4) end face homopolarity opposing parallel are arranged, and annular magnetizer (7) is positioned between bead (3) and the bead (4), produces little annular disturbing wave (8); Big annular disturbing wave (6) is opposite with little annular disturbing wave (8) polarity.Become axial magnetic suspension bearing.
Except that above embodiment, the present invention also has other execution modes.All employings are equal to the structure that is used for magnetic suspension bearing of replacement, equivalent deformation formation, and its technical scheme all drops in protection scope of the present invention.
Claims (6)
1. be used for one of maglev foundation structure, it is characterized in that: magnetic patch (1), (2), there is a natural attraction between the sexes for (3) end face, links together; Can produce the permanent magnetism ripple (4) perpendicular to magnetizing direction around its connection end face, all there are independently magnetic field, side (5) in each magnetic patch side.
2. be used for two of maglev foundation structure, it is characterized in that: two magnetic patch (1) homopolarity end face is arranged relatively; Iron block (2) is positioned at the centre of two magnetic patch (1), and high density disturbing wave (3) sends from iron block (2) side.
3. be used for three of maglev foundation structure, it is characterized in that: end face chamfering bead (1) and the big magnet ring of end face chamfering (2) with one heart, be arranged in parallel, and antipole is relative; Opposing end surface is fillet surface.
4. according to claim 2ly be used for maglev foundation structure, it is characterized in that: be positioned at the magnetic conduction iron block (2) between the both sides magnetic patch (1), after its position and size change, can change the direction and the size of high density disturbing wave (3).
5. be used for maglev foundation structure according to claim 1 and claim 2 are described, it is characterized in that: self the mechanical structure to magnetic patch and magnetic conductor is out of shape, and just can make radial magnetic bearing; When as seen the own mechanical structure of magnetic patch and magnetic conductor is out of shape, can only enlarge its purposes, can not change the suspension function of foundation structure.
6. be used for maglev foundation structure according to claim 2 and claim 3 are described, it is characterized in that: two kinds of foundation structures are combined, will a kind of multistage axial magnetic suspension bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101428475A CN102215018A (en) | 2010-04-09 | 2010-04-09 | Basic structure for magnetic suspension |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101428475A CN102215018A (en) | 2010-04-09 | 2010-04-09 | Basic structure for magnetic suspension |
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| Publication Number | Publication Date |
|---|---|
| CN102215018A true CN102215018A (en) | 2011-10-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101428475A Pending CN102215018A (en) | 2010-04-09 | 2010-04-09 | Basic structure for magnetic suspension |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103089811A (en) * | 2011-11-02 | 2013-05-08 | 卓向东 | Multi-ring inter-sleeved axial magnetic suspension bearing with magnetically stable structure |
| CN104930056A (en) * | 2014-03-18 | 2015-09-23 | 卓向东 | Magnetic suspension bearing with radial and axial suspension functions |
-
2010
- 2010-04-09 CN CN2010101428475A patent/CN102215018A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103089811A (en) * | 2011-11-02 | 2013-05-08 | 卓向东 | Multi-ring inter-sleeved axial magnetic suspension bearing with magnetically stable structure |
| CN104930056A (en) * | 2014-03-18 | 2015-09-23 | 卓向东 | Magnetic suspension bearing with radial and axial suspension functions |
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Application publication date: 20111012 |