CN104751721A - Magnetomotive force conversion experimental device - Google Patents
Magnetomotive force conversion experimental device Download PDFInfo
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- CN104751721A CN104751721A CN201510199326.6A CN201510199326A CN104751721A CN 104751721 A CN104751721 A CN 104751721A CN 201510199326 A CN201510199326 A CN 201510199326A CN 104751721 A CN104751721 A CN 104751721A
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Abstract
The invention provides a magnetomotive force conversion experimental device. A magnetic rotor, serving as a driven body, of the device can apply radial pressure as small as possible to a rotating shaft portion thereof under the action of a magnetic field of a magnetic stator, serving as a driving body, of the device, so that rotating frictional force of the magnetic rotor is enabled to be as small as possible under the condition of a fixed rotating frictional coefficient of the rotating shaft portion, magnetomotive force energy conversion loss caused by rotation friction is reduced, and demonstration, experiments and mechanical analytical research of magnetomotive force conversion are benefited; meanwhile, in the magnetomotive force conversion experimental device, magnetic induction line distribution and stress relationship, on the cross section circumference, between the magnetic stator and the magnetic rotor tend to complexity, and the magnetomotive force conversion relationship between the magnetic stator and the magnetic rotor can be well used for demonstrative experiments and the mechanical analytical research.
Description
Technical field
The present invention relates to a kind of magnetomotive transition experiment device utilizing the attracting principle of magnet homopolar-repulsion, heteropole.
Background technology
The exploitation of magnetic energy, how to adopt permanent magnet to carry out the conversion of magnetic energy and kinetic energy, be the problem that people study always, also there is the technology that various research magnetic energy is converted into mechanical energy in prior art.Such as, Chinese patent CN200610031420.1 permanent magnetic power machine, include support, stators and rotators, described stator comprises permanent-magnetic clamp, separation layer and balladeur train, and described rotor comprises permanent magnets and main shaft; Permanent magnets is column structure, and can be monoblock or 2 pieces, polylith is loaded on main shaft, permanent-magnetic clamp be sleeve-like configuration, adopts high permeability material to make, and can be monoblock or 2 pieces, polylith is stacked or be spliced.Permanent-magnetic clamp can move along balladeur train, and also have an on off control device, this control device can be electronic or manual clutch structure; This invention, owing to adopting said structure, produces thrust with permanent magnet two like magnetic poles repel each other, promotes eccentric runner and then drives rotating spindle with outputting power.And for example, Chinese patent CN200410065768.3 discloses a kind of permanent magnetic power machine, there are dress and the movable right cylinder in frame, in movable right cylinder, ring-type arranges longitudinal strip permanent magnet, rotatable piece is arranged below movable right cylinder, a bar permanent magnet longitudinally arranged is set in rotatable piece, bar permanent magnet in bar permanent magnet in rotatable piece and movable right cylinder is that the same sex is oppositely arranged, one end of coupling shaft is fixedly connected with movable cylindrical center, the other end of coupling shaft is connected with rotatable piece of bias, and adopt rotary type connected mode, rotatable piece is connected with gear train.Its running relies on the magnetic force of permanent magnet, adopts permanent magnetism two like magnetic poles repel each other, slides the powered running of inertia generation.For another example, permanent magnetic power machine disclosed in Chinese patent CN200410012635.X, comprises magnetic assembly and rotation, on off control mechanism.Rotating mechanism comprises main shaft, pivoted frame and driving mechanism, and pivoted frame is provided with several magnetic drums (4) and distribution sleeve therebetween, and they are alternately arranged and connect successively; Also be provided with rotating cylinder (11), it is by the sleeve described in connecting link (6) connection.Driving mechanism comprises the large umbrella gear (17) in driving shaft, transmission shaft (7) and rotating cylinder (11); Driving shaft comprises the rotating shaft (5) of magnetic drum and is positioned at the crossed universal shaft (29) of sleeve (26), and their serial connections form " C " shape annulate shaft; Main shaft and rotating cylinder (11) are connected.Magnetic assembly comprises magnetic pole circle and above-mentioned magnetic drum, magnetic pole circle by some to towards the opposite, to be uniformly distributed and S, N magnetic pole twisted piece (25) be connected with casing, (13) surround, it is that " C " shape ring axial screw runs passage.This invention have energy-conservation, using area is unrestricted, advantages of simple structure and simple.
But above-mentioned prior art all exists the defect of sustainability difference, be difficult to ensure that mechanism normally operates continuously, these therefore above-mentioned mechanisms in fact all cannot realize the target relying on the eternal driving of magnetic force.In actual applications, but can manufacturing magnetomotive transformation model device according to above-mentioned mechanism construction, for carrying out mutually transforming between magnetostatic field energy and kinetic energy and the mechanics study of interaction relationship, reaching demonstration, testing and the application purpose such as mechanical analysis.When according to these mechanism constructions above-mentioned actual manufacture magnetomotive transformation model device, in order to ensure the relative position relation between driving body and driven member, driven member all needs certain installation supporting construction to form support to it usually, certainly inevitably there is certain rotation friction between driven member and its installation supporting construction, but, due to the driving design relation in said mechanism structure between driving body and driven member, make to drive in operational process, driven member to its install supporting construction in rotating shaft radial direction (namely vertical with rotating shaft direction) accept imbalance, therefore driven member is installed shaft in supporting construction to it and can be applied larger radial pressure, thus make the rotation friction between driven member and its installation supporting construction also strengthen when shaft pivoting friction coefficient is fixed, have in this kinetic energy just causing static magnetic field the subject of knowledge and the object of knowledge to be changed a larger part all consume by rotation friction, to such an extent as to demonstration, experiment is difficult to carry out smoothly, or the error that relevant mechanics study divides generation larger.
Therefore, under the inevitable physical condition of rotation friction between driven member and its installation supporting construction, driving relationship how as much as possible between appropriate design driving body and driven member, reduce the friction force between driven member and its installation supporting construction, and then reduce the loss of energy conversion, be an important topic and the design object of magnetomotive transformation model apparatus design and magnetomotive conversion mechanics study.
Summary of the invention
For above shortcomings in prior art, the problem that the present invention solves is how to provide a kind of magnetomotive transition experiment device, make when shaft pivoting friction coefficient is fixed driven member rotation friction little as much as possible, reduce because pivoting friction is to the loss of magnetomotive energy conversion, be conducive to for magnetomotive conversion demonstration, experiment and mechanical analysis research.
For achieving the above object, the technological means that the present invention adopts is:
A kind of magnetomotive transition experiment device, comprises entirety magnetic force stator cylindrically, and is coaxially rotatably arranged on the magnetic rotor in the cylindric hollow channel of described magnetic force stator; The interior sidewall surface of described magnetic force stator is S pole, and outer side surface is N pole; Described magnetic rotor has the magnet core of a ring texture, described magnet core by K the first type magnet and K Second-Type magnet annularly circumference replace arrangement and form, and K the first type magnet and K Second-Type magnet are all uniformly distributed in annular, peripheral, K be greater than 1 odd number; Wherein, first type magnet is N pole, dorsad magnet core axis side towards magnet core axis side is S pole, Second-Type magnet is S pole, dorsad magnet core axis side towards magnet core axis side is N pole, and the side of Second-Type magnet magnet core axis is dorsad the plane perpendicular with the radial direction of magnet core circumscribed circle; The periphery of each first type magnet of magnet core is surveyed and is all close to the iron core being provided with a circular arc strip, often the end wall of adjacent two iron cores encloses formation opening just towards its Second-Type magnet between the two and angle of release is the V-shaped groove of 60 °, and the A/F of described V-shaped groove and its just towards the lateral width of Second-Type magnet magnet core axis dorsad match, make described V-shaped groove and its just towards Second-Type magnet enclose the triangular prism shape cavity space that formation xsect is equilateral triangle; The 3rd type magnet of the equilateral triangular prism shape being provided with a mating shapes is all inlayed in each triangular prism shape cavity space; Each 3rd type magnet and the cylinder side that one of them iron core end wall of its place V-shaped groove fits are S pole, a seamed edge side relative with place, described S pole cylinder is N pole, and in magnetic rotor the S pole of each the 3rd type magnet respectively towards the end wall of different iron core.
In above-mentioned magnetomotive transition experiment device, specifically, described magnetic force stator is annularly circumferentially arranged by several fan annular magnet and forms, and each fan annular magnet is S pole towards the side, direction, cylinder axis of magnetic force stator, and the side, direction, cylinder axis of magnetic force stator is N pole dorsad.
In above-mentioned magnetomotive transition experiment device, specifically, the fan annular magnet forming described magnetic force stator is permanent magnet or electromagnet.
In above-mentioned magnetomotive transition experiment device, specifically, described first type magnet, Second-Type magnet and the 3rd type magnet are permanent magnet or electromagnet.
Compared to prior art, the present invention has following beneficial effect:
1, magnetomotive transition experiment device of the present invention, its magnetic rotor as driven member can under its magnetic fields as the magnetic force stator of driving body, radial pressure little is as far as possible formed to the shaft of magnetic rotor, thus make the rotation friction of magnetic rotor little as much as possible when shaft pivoting friction coefficient is fixed, reduce because pivoting friction is to the loss of magnetomotive energy conversion, be more conducive to for magnetomotive conversion demonstration, experiment and mechanical analysis research.
2, in magnetomotive transition experiment device of the present invention, lines of magnetic induction between its magnetic force stator and magnetic rotor in xsect circumference distributes and stressed relation is tending towards complicated, and its magnetomotive transformational relation each other can perform well in lecture experiment and mechanical analysis research.
Accompanying drawing explanation
Fig. 1 is the one-piece construction exemplary plot of magnetomotive transition experiment device of the present invention.
Fig. 2 is the example of shape figure of single fan annular magnet in the magnetic force stator of magnetomotive transition experiment device of the present invention.
Fig. 3 is the topology example stereographic map of magnetic rotor in magnetomotive transition experiment device of the present invention.
Fig. 4 is the vertical view of the topology example of magnetic rotor shown in Fig. 3.
Embodiment
Below in conjunction with the drawings and specific embodiments, magnetomotive transition experiment device of the present invention is further detailed.
The invention provides a kind of magnetomotive transition experiment device, the one-piece construction example of this magnetomotive transition experiment device as shown in Figure 1, it comprises entirety magnetic force stator 10 cylindrically, and is coaxially rotatably arranged on the magnetic rotor 20 in the cylindric hollow channel of described magnetic force stator 10.The interior sidewall surface of magnetic force stator 10 is S pole, and outer side surface is N pole.As specific implementation, the ring-type list magnet being respectively different magnetic poles due to inner ring, outer shroud cannot realize, the magnetic force stator 10 of therefore used in magnetomotive transition experiment device of the present invention cylindrical shape, annular magnet can be fanned by several be annularly circumferentially arranged and form, each fan annular magnet is S pole towards the side, direction, cylinder axis of magnetic force stator, and the side, direction, cylinder axis of magnetic force stator is N pole dorsad; As shown in Figure 2, each fan annular magnet, when embody rule realizes, can adopt permanent magnet to the concrete shape of single fan annular magnet, also can adopt electromagnet.As Fig. 3 and Fig. 4 shows the topology example of the magnetic rotor in magnetomotive transition experiment device of the present invention, wherein Fig. 3 is the stereographic map of magnetic rotor structure, and Fig. 4 is the vertical view of magnetic rotor structure; This magnetic rotor structure is formed primarily of the first type magnet, Second-Type magnet, the 3rd type magnet and iron core, and in figs. 3 and 4, the first type magnet is all labeled as A, and Second-Type magnet is all labeled as B, and the 3rd type magnet is all labeled as C, and iron core is all labeled as D.As shown in Figure 3 and Figure 4, this magnetic rotor 20 has the magnet core of a ring texture, this magnet core by K the first type magnet A and K Second-Type magnet B annularly circumference replace arrangement and form, and K the first type magnet A and K Second-Type magnet B is all uniformly distributed in annular, peripheral, K be greater than 1 odd number, like this, make each first type magnet A on magnet core just right along ring texture circumference place, 180 ° of positions if to be a Second-Type magnet B(K be just be greater than 2 even number, so on magnet core each first type magnet along ring texture circumference place, 180 ° of positions just right be still then a first type magnet).In order to comparatively simply and clearly illustrate, in the example shown in Fig. 3 and Fig. 4, the number K of the first type magnet and Second-Type magnet is 3, but in practical application, the number K of the first type magnet and Second-Type magnet can be greater than 1 any odd number.In magnet core, first type magnet A is N pole, dorsad magnet core axis side towards magnet core axis side is S pole, Second-Type magnet B is S pole, dorsad magnet core axis side towards magnet core axis side is N pole, and the side of Second-Type magnet B magnet core axis is dorsad the plane perpendicular with the radial direction of magnet core circumscribed circle.And the iron core D being provided with a circular arc strip is all close in the periphery survey of each first type magnet A of magnet core, often the end wall of adjacent two iron core D encloses formation opening just towards its Second-Type magnet between the two and angle of release is the V-shaped groove of 60 °, and the A/F of V-shaped groove and its just towards the lateral width of Second-Type magnet B magnet core axis dorsad match, make V-shaped groove and its just towards Second-Type magnet enclose the triangular prism shape cavity space that formation xsect is equilateral triangle.The 3rd type magnet C of the equilateral triangular prism shape being provided with a mating shapes is all inlayed in each triangular prism shape cavity space.Each 3rd type magnet C and the cylinder side that one of them iron core end wall of its place V-shaped groove fits are S pole, a seamed edge side relative with place, described S pole cylinder is N pole, and in magnetic rotor the S pole of each the 3rd type magnet respectively towards the end wall of different iron core; That is, do not have two end faces of S pole towards same iron core of two the 3rd type magnets in magnetic rotor, this just makes the S pole of each the 3rd type magnet in magnetic rotor towards being all partial to clockwise (or counterclockwise) direction in magnetic rotor cross sectional planes.Fig. 4 acceptance of the bid shows S pole, the N pole distribution situation of each the first type magnet, Second-Type magnet and the 3rd type magnet in magnetic rotor structure.When embody rule realizes, the first type magnet in magnetic rotor, Second-Type magnet and the 3rd type magnet can adopt permanent magnet or electromagnet respectively, determine according to embody rule demand; And the mutual alignment relation of the first type magnet, Second-Type magnet, the 3rd type magnet and iron core can be fixed shaping by the multiple fixed form such as bonding, binding, riveted joint and is achieved in magnetic rotor.
Because magnetomotive transition experiment device of the present invention have employed above-mentioned special construction, wherein, in magnetic rotor ring texture magnet core by K the first type magnet and K Second-Type magnet annularly circumference replace arrangement and form, and K the first type magnet and K Second-Type magnet are all uniformly distributed in annular, peripheral, K be greater than 1 odd number, make each first type magnet on magnet core just right along ring texture circumference place, 180 ° of positions be a Second-Type magnet just, like this, in the axis part of magnet core, between each the first type magnet and Second-Type magnet, interactional magnetic field makes a concerted effort just to reach balance in the radial direction in magnet core xsect place plane, and the magnetic pole surveying each first type magnet corresponding position in the periphery of magnet core is N pole, survey in the periphery of each first type magnet of magnet core simultaneously and be all close to the iron core being provided with a circular arc strip, play the effect of the N pole field intensity that enhancing first type magnet is surveyed towards magnetic rotor periphery, although, in magnetic rotor, the S pole of the 3rd type magnet also obliquely towards magnetic rotor peripheral direction and its S pole magnetic line of force have passed through towards the end of iron core, but the overwhelming majority of each iron core is still mainly subject to the magnetization of the first type magnet N pole, and can pass through first, second, 3rd type magnet magnetic field intensity is separately adjusted (if permanent magnet then can be adjusted by selecting different magnet materials, if electromagnet then can be adjusted by applying different strength of current), the magnetic field intensity of the first type magnet is made more to be better than the magnetic field intensity of Second-Type magnet and the 3rd type magnet, in addition iron core is to the enhancing of the first type magnet N pole field intensity, so just, the periphery of magnetic rotor can be made to survey entirety and to possess relatively strong N pole magnetic.Thus, in S pole field region in magnetic force stator cylinder shape hollow channel, absorption can be formed to magnetic rotor, simultaneously, because the K in magnetic rotor the first type magnet is uniformly distributed in annular, peripheral, as long as this just makes magnetic rotor coaxially be arranged in the cylindric hollow channel of magnetic force stator, the attractive force so between magnetic rotor N pole field in the circumferential and the S pole field of magnetic force stator madial wall is balance in cross sectional planes making a concerted effort in the radial direction.Thus, if consider in the ideal situation, as long as keep magnetic rotor to be coaxially arranged in the cylindric hollow channel of magnetic force stator, (namely making the gravity direction of magnetic rotor at its centre of gravity place place overlap with direction, axis) is placed in the direction that magnetic force stator and magnetic rotor keep vertical along its axis, because the magnetic field that magnetic rotor is suffered in the xsect radial direction of magnetic force stator cylinder shape hollow channel makes a concerted effort to be balance, and if the S pole field of magnetic force stator madial wall and the periphery of the magnetic rotor attractive force surveyed between the overall N pole magnetic presented can be formed the gravity of magnetic rotor support, so just can make the overall magnetic levitation of magnetic rotor in the cylindric hollow channel of magnetic force stator.But in practical application, such perfect condition is difficult to maintain, because if vibrate a little, as long as magnetic rotor deviate from the coaxial relation with magnetic force stator cylinder shape hollow channel a little because of vibration, will be adsorbed on the inwall of magnetic force stator cylinder shape hollow channel because skew occurs suffered magnetic force.Therefore, in actual applications, a rotation shaft supporting structure can be passed through, in the cylindric hollow channel keeping magnetic rotor to be coaxially rotatably arranged on magnetic force stator (rotation shaft supporting structure in various figures and not shown).The specific design mode of this rotation shaft supporting structure has a lot, the set-up mode the most easily expected according to prior art knowledge, be exactly by one with the axostylus axostyle of the coaxial setting of magnetic force stator cylinder shape hollow channel, magnetic rotor is arranged on this axostylus axostyle by rolling bearing is sheathed, thus formation rotating shaft support, magnetic rotor is coaxially rotatably arranged in the cylindric hollow channel of magnetic force stator, and the coaxial relation between cylindric magnetic force stator can be kept well; Certainly, also have other adoptable rotation shaft supporting structure design a lot, the structural design knowledge that those skilled in the art can have according to it designs, and illustrates no longer one by one at this.Utilize rotation shaft supporting structure, although the coaxial relation that magnetic rotor can be made can to keep well between cylindric magnetic force stator, the pivoting friction of rolling bearing is then inevitable, but because the pivoting friction coefficient of a rolling bearing is certain, and in magnetomotive transition experiment device of the present invention, as long as (namely making the gravity direction of magnetic rotor at its centre of gravity place place overlap with direction, axis) is placed in the direction that magnetic force stator and magnetic rotor keep vertical along its axis, because the magnetic field that magnetic rotor is suffered in the xsect radial direction of magnetic force stator cylinder shape hollow channel makes a concerted effort to be balance, therefore can not form footpath to rolling bearing to upward pressure, this just reduces the rotation friction of magnetic rotor as much as possible, thus reduce because pivoting friction is to the loss of magnetomotive energy conversion, more be conducive to the demonstration for magnetomotive conversion, experiment and mechanical analysis research.
On the other hand, in magnetomotive transition experiment device of the present invention, although the magnetic field of magnetic rotor suffered by the xsect radial direction of magnetic force stator cylinder shape hollow channel makes a concerted effort to be balance, but due to the existence of the 3rd type magnet in magnetic rotor, and the S pole of each the 3rd type magnet is towards being all partial to clockwise (or counterclockwise) direction in magnetic rotor cross sectional planes, therefore under the S pole field environment in magnetic force stator cylinder shape hollow channel, repulsive force component effect in the circumferential suffered by cause the 3rd type magnet, magnetic rotor is stressed in the xsect circumference of magnetic force stator cylinder shape hollow channel is unbalanced, the repulsive force in counterclockwise (or clockwise) direction can be subject to, and the lines of magnetic induction in xsect circumference between magnetic force stator and magnetic rotor distributes and stressed relation because of magnetic rotor in the 3rd type magnet layout and be tending towards complicated, its magnetomotive transformational relation each other can perform well in lecture experiment and mechanical analysis research, such as pass through first, second, 3rd type magnet magnetic field intensity is separately adjusted, demonstrate or analyze and research first, second, magnetic fields relation and magnetomotive transformational relation etc. between the respective different magnetic field strength conditions lower magnetic force stator of 3rd type magnet and magnetic rotor.
In sum, magnetomotive transition experiment device of the present invention, its magnetic rotor as driven member can under its magnetic fields as the magnetic force stator of driving body, radial pressure little is as far as possible formed to the shaft of magnetic rotor, thus make the rotation friction of magnetic rotor little as much as possible when shaft pivoting friction coefficient is fixed, reduce because pivoting friction is to the loss of magnetomotive energy conversion, and the lines of magnetic induction between magnetic force stator and magnetic rotor in xsect circumference distributes and stressed relation is tending towards complicated, its magnetomotive transformational relation each other can perform well in lecture experiment and mechanical analysis research.
What finally illustrate is, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (4)
1. a magnetomotive transition experiment device, is characterized in that, comprises entirety magnetic force stator cylindrically, and is coaxially rotatably arranged on the magnetic rotor in the cylindric hollow channel of described magnetic force stator;
The interior sidewall surface of described magnetic force stator is S pole, and outer side surface is N pole;
Described magnetic rotor has the magnet core of a ring texture, described magnet core by K the first type magnet and K Second-Type magnet annularly circumference replace arrangement and form, and K the first type magnet and K Second-Type magnet are all uniformly distributed in annular, peripheral, K be greater than 1 odd number; Wherein, first type magnet is N pole, dorsad magnet core axis side towards magnet core axis side is S pole, Second-Type magnet is S pole, dorsad magnet core axis side towards magnet core axis side is N pole, and the side of Second-Type magnet magnet core axis is dorsad the plane perpendicular with the radial direction of magnet core circumscribed circle; The periphery of each first type magnet of magnet core is surveyed and is all close to the iron core being provided with a circular arc strip, often the end wall of adjacent two iron cores encloses formation opening just towards its Second-Type magnet between the two and angle of release is the V-shaped groove of 60 °, and the A/F of described V-shaped groove and its just towards the lateral width of Second-Type magnet magnet core axis dorsad match, make described V-shaped groove and its just towards Second-Type magnet enclose the triangular prism shape cavity space that formation xsect is equilateral triangle; The 3rd type magnet of the equilateral triangular prism shape being provided with a mating shapes is all inlayed in each triangular prism shape cavity space; Each 3rd type magnet and the cylinder side that one of them iron core end wall of its place V-shaped groove fits are S pole, a seamed edge side relative with place, described S pole cylinder is N pole, and in magnetic rotor the S pole of each the 3rd type magnet respectively towards the end wall of different iron core.
2. magnetomotive transition experiment device according to claim 1, it is characterized in that, described magnetic force stator is annularly circumferentially arranged by several fan annular magnet and forms, each fan annular magnet is S pole towards the side, direction, cylinder axis of magnetic force stator, and the side, direction, cylinder axis of magnetic force stator is N pole dorsad.
3. magnetomotive transition experiment device according to claim 2, is characterized in that, the fan annular magnet forming described magnetic force stator is permanent magnet or electromagnet.
4. magnetomotive transition experiment device according to claim 1, is characterized in that, described first type magnet, Second-Type magnet and the 3rd type magnet are permanent magnet or electromagnet.
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| CN201510199326.6A CN104751721B (en) | 2015-04-24 | 2015-04-24 | A kind of magnetomotive transition experiment device |
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| CN201510199326.6A CN104751721B (en) | 2015-04-24 | 2015-04-24 | A kind of magnetomotive transition experiment device |
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| CN104751721B CN104751721B (en) | 2017-03-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108538158A (en) * | 2018-07-11 | 2018-09-14 | 唐华英 | Magnetic force teaching demonstration device |
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| US6013963A (en) * | 1999-02-05 | 2000-01-11 | Emec Energy, L.L.C. | High efficiency electro-mechanical energy conversion device |
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| CN104751721B (en) | 2017-03-15 |
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