CN104935147A - Permanent magnetic vibration generation apparatus with trapezoidal magnetic yokes - Google Patents
Permanent magnetic vibration generation apparatus with trapezoidal magnetic yokes Download PDFInfo
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- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 claims description 19
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Abstract
The invention relates to a permanent magnetic vibration generation apparatus with trapezoidal magnetic yokes. The permanent magnetic vibration generation apparatus is characterized in that a main body structure of the generation apparatus is a cylindrical structure and comprises a cylindrical housing, a top cover, a vibration shaft and a bottom cover; upper and lower ends of the housing are fixedly connected with the top cover and the bottom cover through bolts respectively; a cylindrical through hole is formed in the center of the top cover; a coil outlet through hole is formed in one side of the center of the top cover; a hollow cylindrical hub is mounted in the center of the upper part of the bottom cover; a spring is arranged in a bottom hollow part of the hub; the lower part of the vibration shaft is in contact with the spring in the hub; the upper end of the vibration shaft vertically penetrates through a linear bearing and the top cover fixed with the vibration shaft, and is higher than the top cover; a regular quadrangular prism body is arranged in the middle of the vibration shaft; both upper and lower parts of the vibration shaft adopt cylindrical structures; quadrangular prism grooves are formed in four side surfaces of the regular quadrangular prism body in the middle; a trapezoidal magnetic yoke is bonded in each quadrangular prism body; and the four trapezoidal magnetic yokes are identical in shape and structure.
Description
Technical field
The present invention relates to the vibration generating device vibrational energy in environment being converted to electric energy, particularly one trapezoidal yoke permanent magnetic vibration Blast Furnace Top Gas Recovery Turbine Unit (TRT), core is vibrating shaft, trapezoidal yoke, hollow cylindrical shell.This permanent magnetic vibration Blast Furnace Top Gas Recovery Turbine Unit (TRT) can form closed magnetic circuit between trapezoidal yoke and permanent magnet, improves the utilance in magnetic field.
Background technology
Permanent magnetic vibration Blast Furnace Top Gas Recovery Turbine Unit (TRT) is the Blast Furnace Top Gas Recovery Turbine Unit (TRT) utilizing Faraday's electromagnetic induction law to be electric energy by ambient vibration power conversion, its have generated output large, be easy to the advantages such as maintenance.
According to the difference of vibrating mass, can dynamic iron (magnet movement), moving-coil (coil movement) and iron ring be divided into dynamic (magnet coil associated movement) three types permanent magnetic vibration Blast Furnace Top Gas Recovery Turbine Unit (TRT).It is motionless that moving iron is coil, and magnet opposed coil vibrates, and in coil, magnetic flux changes, thus produces induced electromotive force in coil.It is motionless that moving-coil type is magnet, and coil opposed magnet vibrates, and in coil, magnetic flux changes, thus produces induced electromotive force in coil; In order to the electric energy improved further under low-frequency vibration exports, there is the vibration energy collector of iron ring with the vibration shape.Iron ring is under extraneous inputted vibration with the vibration shape, and magnet and coil all produce vibration, but have relative motion between the two, in coil, produce induced electromotive force.
Existing permanent magnetic vibration Blast Furnace Top Gas Recovery Turbine Unit (TRT) is mostly small energy collector, and great majority do not utilize yoke to carry out magnetic conduction, causes the waste on a large scale in magnetic field; The rate of change by the magnetic flux in coil can not be improved according to Faraday's electromagnetic induction law better, thus improve output induced electromotive force." a kind of low frequency permanent magnetic vibration Blast Furnace Top Gas Recovery Turbine Unit (TRT) " of applying for before this seminar is applicable to the energy acquisition under low frequency Large travel range condition, its agent structure is four-prism, comprise four side plates, upper end cover and bottom end covers, adopt pole shoe type yoke as magnetic conduction path, convenience is placed coil and is produced the magnetic field of linear change; Weak point is that volume is comparatively large, is unsuitable for the vibration of more than frequency 10Hz.The present invention is column type vibration generating device, is applicable to the vibrational energy collection under vehicle travel conditions, small volume, diameter is 8.2cm, height is 12cm, and employs ladder type yoke as magnetism guiding access, in adjacent two ladder type magnetic poles, just can form closed-loop path, improve magnetic field utilance, effectively alleviate mover weight, even if when extraneous Input Forces excitation is less, also vibration can be produced, thus vibrational energy is converted to electric energy, improve electromechanical conversion efficiency.
Summary of the invention
The present invention is directed to the vibration under vehicle traveling, devise a kind of trapezoidal yoke permanent magnetic vibration Blast Furnace Top Gas Recovery Turbine Unit (TRT).This vibration generating device core component is vibrating shaft, trapezoidal yoke, hollow cylindrical shell, and be the magnetic yoke structure of band four trapezoidal magnetic poles by the yoke design of vibration generating device, can on the basis ensureing high magnetic conduction, reduce the volume of yoke as much as possible, and four magnetic poles and pole body vertical distribution, make through pole body direction, 90 ° of changes to occur at magnetic flux, thus it is comparatively large to make to be wound on variation rate of magnetic flux in the coil on pole body, produces larger induced electromotive force; In addition, Blast Furnace Top Gas Recovery Turbine Unit (TRT) adopts the main body enclosed construction of cylinder type, improves stability during vibration generating device work, and can improve the utilization ratio in magnetic field and space; Finally, due to the full symmetric structure of Blast Furnace Top Gas Recovery Turbine Unit (TRT), the electromagnetism that vibrating shaft is subject to makes a concerted effort to be 0, can reduce the active force acting on vibrating shaft when vibrating.The present invention is applicable to the vibration under vehicle travel conditions, i.e. frequency 1-20Hz, the vibrating power-generation under vibration displacement peak value 1-20mm condition.Theoretical and experiment shows, vibration generating device of the present invention is 10Hz in frequency, and during amplitude 10mm, each yoke coil output voltage peak value is 6.8V.
The technical scheme that the present invention solve the technical problem employing is:
A kind of trapezoidal yoke permanent magnetic vibration Blast Furnace Top Gas Recovery Turbine Unit (TRT), it is characterized in that the agent structure of this Blast Furnace Top Gas Recovery Turbine Unit (TRT) is cylindrical-shaped structure, comprise cylinder type shell, top cover, vibrating shaft and bottom, the upper and lower two ends of shell are fixedly connected with top cover, bottom respectively by bolt, top cap central has cylindrical hole, the side at the center of top cover has coil and goes out line three-way hole, and bottom central upper portion is provided with hollow cylindrical hub, and hub inner bottom part hollow parts places spring; The bottom of vibrating shaft is in hub and spring contact; The top cover that the upper end of vibrating shaft passes perpendicularly through linear bearing and is fixed together with it, and exceed top cover;
The middle part of described vibrating shaft is four-prism, the upper and lower two parts of vibrating shaft are cylindrical-shaped structure, the four-prism at middle part is processed with quadrangular groove four sides, all bondingly in each quadrangular groove be placed with a trapezoidal yoke, totally four identical trapezoidal yokes of shape and structure, each trapezoidal yoke comprises four trapezoidal magnetic poles, two pole bodies and an electrode seat, two pole bodies are the identical cuboid of structure, to be adjacent both sides angle be in the bottom surface of the electrode seat parallelogram of 45 °, the bottom surface of electrode seat is fixed in the quadrangular groove of vibrating shaft, relative with two of electrode seat respectively long limit, two pole body one end is vertical to be fixed, two trapezoidal magnetic poles are vertically fixed with respectively to interior at the other end of each pole body, and going to the bottom of trapezoidal magnetic pole is fixedly connected with corresponding pole body is vertical, four trapezoidal magnetic poles on two pole bodies are staggered, and four trapezoidal magnetic poles at grade, gap is had between adjacent trapezoidal magnetic pole, the polarity of four trapezoidal magnetic poles is different successively from top to bottom, each pole body is vertically all wound with a coil, the coil winding direction of two pole bodies in same electrode seat is all identical, and two ends of two coils in same electrode seat are connected, reserve two head ends as lead-out wires of coil, these two lead-out wires of coil are one group of lead-out wires of coil, four trapezoidal yokes totally eight lead-out wires of coil, be divided into into four groups of lead-out wires of coil, these four groups of lead-out wires of coil all go out line three-way hole from the coil of top cover and draw, and the coiling direction of eight coils is all identical,
Four that are symmetrically distributed with inside cylinder type shell vertical table tops, each table top processes six permanent magnet grooves respectively at middle part, these six permanent magnet grooves embed set of permanent magnets for bonding, totally four set of permanent magnets, each set of permanent magnets includes six tetragonal body permanent magnets, six equal axial chargings of tetragonal body permanent magnet, and be close in the corresponding permanent magnet groove of embedding from top to bottom successively along the permanent magnet groove of respective mesa, the polar orientation of six tetragonal body permanent magnets is horizontal direction, and adjacent tetragonal body permanent magnet polarity is different successively; The both ends of the surface up and down of four-prism during equilbrium position in the middle part of vibrating shaft are concordant with the upper and lower end face of four permanent magnets in centre of corresponding set of permanent magnets respectively; Equidistant air gap is left respectively between the end face outside of each trapezoidal yoke and the outer face of corresponding set of permanent magnets.
Above-mentioned trapezoidal yoke permanent magnetic vibration Blast Furnace Top Gas Recovery Turbine Unit (TRT), the distance between two trapezoidal magnetic poles on each pole body be trapezoidal magnetic pole go to the bottom length 1.1-1.5 doubly.
Above-mentioned trapezoidal yoke permanent magnetic vibration Blast Furnace Top Gas Recovery Turbine Unit (TRT), described hollow cylindrical hub inwall has square groove, and vibrating shaft bottom has square keyway, and square keyway is connected by flat key with the square groove of hub inwall, vibrating shaft and hollow cylindrical hub is fixed.
Above-mentioned trapezoidal yoke permanent magnetic vibration Blast Furnace Top Gas Recovery Turbine Unit (TRT), described top cover and bottom are the reeded column type aluminium alloy plate of marginal belt, and the groove of top cover and bottom is in order to embed cylinder type shell.
Above-mentioned trapezoidal yoke permanent magnetic vibration Blast Furnace Top Gas Recovery Turbine Unit (TRT), the overall cutting by permeability magnetic material No. 45 steel of described trapezoidal yoke forms.
Beneficial effect of the present invention is:
(1) air gap between set of permanent magnets and yoke is less, is 1mm, considerably reduces the leakage field in air, improves the utilance in magnetic field;
(2) magnetic yoke structure is designed to the structure of trapezoidal magnetic pole, each yoke is totally four magnetic poles, and four magnetic poles form two to pole, four magnetic poles are corresponding in turn to the adjacent different set of permanent magnets of polarity inside cylinder type shell, the advantage of this magnetic yoke structure is in order to the coil place on pole body obtains the rate of change of double magnetic flux, reduce air-gap reluctance, improve magnetic pole and magnetic field distribution, thus obtain larger induced electromotive force according to Faraday's electromagnetic induction law;
(3) on each pole body of yoke, a coil is all wound with, and pole body is connected with trapezoidal magnetic pole is vertical, make more easily to fix around the coil on pole body, when vibrating shaft up-down vibration, the adjacent different permanent magnet of polarity is placed and is made the flux change rate on trapezoidal magnetic pole larger, and flux value is comparatively large, be more conducive to produce high electromotive force;
(4) body design of Blast Furnace Top Gas Recovery Turbine Unit (TRT) is cylindrical-shaped structure, and set of permanent magnets and the trapezoidal yoke of Blast Furnace Top Gas Recovery Turbine Unit (TRT) inside are circumferentially uniformly distributed; Upwards each party is to the electromagnetic force equal and opposite in direction be subject in four directions, and making a concerted effort of the four direction that mover is subject to is 0, thus acts on the active force of mover when reducing vibration;
(5) experimental data shows, the present invention is at vibration frequency 10Hz, under the sinusoidal vibration excitation of peak value 10mm condition, lead-out wires of coil in the single trapezoidal yoke of vibration generating device can produce the induced electromotive force of peak value 6.8V, shows that this vibration generating device can meet the electricity consumption of the low-power equipments such as 3V, 5V after rectification filtering voltage stabilizing circuit.
Accompanying drawing explanation
Fig. 1 is the vertical section structural representation of a kind of embodiment of the present invention's trapezoidal yoke permanent magnetic vibration Blast Furnace Top Gas Recovery Turbine Unit (TRT).
Fig. 2 is the vibrating shaft 1 of a kind of embodiment of the present invention's trapezoidal yoke permanent magnetic vibration Blast Furnace Top Gas Recovery Turbine Unit (TRT) and the perspective view of trapezoidal yoke 6.
Fig. 3 is the perspective view that the hollow cylinder hub 8 of a kind of embodiment of the present invention's trapezoidal yoke permanent magnetic vibration Blast Furnace Top Gas Recovery Turbine Unit (TRT) is arranged on bottom 9.
Fig. 4 is the planar structure schematic diagram of the top cover 2 of a kind of embodiment of the present invention's trapezoidal yoke permanent magnetic vibration Blast Furnace Top Gas Recovery Turbine Unit (TRT).
Fig. 5 is the perspective view of the cylinder type shell 4 of a kind of embodiment of the present invention's trapezoidal yoke permanent magnetic vibration Blast Furnace Top Gas Recovery Turbine Unit (TRT).
Fig. 6 is the perspective view of the trapezoidal yoke 6 of a kind of embodiment of the present invention's trapezoidal yoke permanent magnetic vibration Blast Furnace Top Gas Recovery Turbine Unit (TRT).
Fig. 7 is vibration frequency is 10Hz, and when amplitude is 10mm, single trapezoid magnet yoke winding lead-out wire of vibration generating device exports EMF waveform figure.
Wherein, 1-vibrating shaft; 2-top cover; 3-linear bearing; 4-shell; 5-set of permanent magnets; The trapezoidal yoke of 6-(or yoke); 7-coil; 8-hollow cylindrical hub; 9-bottom; 10-spring; 11-flat key; 12-electrode seat; 13-pole body; The trapezoidal magnetic pole of 14-; The square keyway of 15-; 16-quadrangular groove; 21-square groove; 22-coil goes out line three-way hole; 31-36 tetragonal body permanent magnet (or permanent magnet); 37-table top.
Embodiment
Explain the present invention further below in conjunction with drawings and Examples, but with this, any restriction is not carried out to protection scope of the present invention.
The present invention's trapezoidal yoke permanent magnetic vibration Blast Furnace Top Gas Recovery Turbine Unit (TRT) (is called for short Blast Furnace Top Gas Recovery Turbine Unit (TRT), see Fig. 1-5) its agent structure (as Fig. 1) is cylindrical-shaped structure, comprise cylinder type shell 4, top cover 2 and bottom 9, shell about 4 two ends are fixedly connected with top cover 2, bottom 9 respectively by bolt, top cover 2 center has cylindrical hole, the side at the center of top cover 2 has coil and goes out line three-way hole 22, bottom 9 central upper portion is provided with hollow cylindrical hub 8, and hub inner bottom part hollow parts places spring 10; The bottom of vibrating shaft 1 contacts with spring 10 in hub; The top cover 2 that the upper end of vibrating shaft 1 passes perpendicularly through linear bearing 3 and is fixed together with it, and exceed top cover 2;
The middle part of described vibrating shaft 1 is four-prism, upper and lower two parts are cylindrical-shaped structure (as Fig. 2), the four-prism at middle part is processed with quadrangular groove 16 four sides, all bondingly in each quadrangular groove 16 be placed with a trapezoidal yoke 6, totally four identical trapezoidal yokes 6 of shape and structure, each trapezoidal yoke 6 (as Fig. 6) comprises four trapezoidal magnetic poles 14, two pole bodies 13 and an electrode seat 12, two pole bodies 13 are the identical cuboid of structure, to be adjacent both sides angle be in the bottom surface of electrode seat 12 parallelogram of 45 °, the bottom surface of electrode seat 12 is fixed in the quadrangular groove 16 of vibrating shaft 1, relative with two of electrode seat 12 respectively long limit, two pole body 13 one end is vertical to be fixed, two trapezoidal magnetic poles 14 are vertically fixed with respectively to interior at the other end of each pole body 13, and going to the bottom of trapezoidal magnetic pole 14 is fixedly connected with corresponding pole body is vertical, four on two pole bodies 13 trapezoidal magnetic poles 14 are staggered, and four trapezoidal magnetic poles at grade, gap is had between adjacent trapezoidal magnetic pole 14, the polarity of four trapezoidal magnetic poles 14 is different successively from top to bottom, each pole body 13 is vertically all wound with a coil 7, the coil winding direction of two pole bodies 13 in same electrode seat is all identical, and two of two of correspondence coils ends are connected, reserve two head ends as lead-out wires of coil, these two lead-out wires of coil are one group of lead-out wires of coil, four trapezoidal yokes 6 totally eight lead-out wires of coil, be divided into into four groups of lead-out wires of coil, these four groups of lead-out wires of coil all go out line three-way hole 22 from the coil of top cover 2 and draw, and the coiling direction of 8 coils is all identical,
Four that are symmetrically distributed with inside cylinder type shell 4 vertical table tops 37, each table top 37 processes six permanent magnet grooves respectively at middle part, these six permanent magnet grooves embed set of permanent magnets 5 for bonding, totally four set of permanent magnets 5, each set of permanent magnets 5 includes six tetragonal body permanent magnet 31-36, six equal axial chargings of tetragonal body permanent magnet 31-36, and be close in the corresponding permanent magnet groove of embedding from top to bottom successively along the permanent magnet groove of respective mesa, the polar orientation of six tetragonal body permanent magnets is horizontal direction, and adjacent tetragonal body permanent magnet polarity is different successively, the both ends of the surface up and down of four-prism during equilbrium position in the middle part of vibrating shaft 1 are concordant with the upper and lower end face of four permanent magnets in centre of corresponding set of permanent magnets 5 respectively, equidistant air gap is left respectively between the end face outside of each trapezoidal yoke 6 and the outer face of corresponding set of permanent magnets 5.
Distance between the trapezoidal magnetic pole 14 of two of being further characterized in that on each pole body of the present invention is 1.1-1.5 times of trapezoidal magnetic pole bottom side length degree.
Of the present inventionly be further characterized in that described hollow cylindrical hub 8 inwall has square groove 21, vibrating shaft 1 bottom has square keyway 15, and square keyway 11 is connected by flat key 11 with the square groove 21 of hub inwall, vibrating shaft 1 and hollow cylindrical hub 8 is fixed.
Of the present inventionly be further characterized in that described top cover 2 and bottom 9 are the reeded column type aluminium alloy plate of marginal belt, the groove of top cover 2 and bottom 9 is in order to embed cylinder type shell 4.Owing to having stronger suction between set of permanent magnets 5 and trapezoidal yoke 6, at this, both groove was set, and in groove, was bolted shell 4, top cover 2 and bottom 9 simultaneously, is fixedly connected with relative to by means of only bolt, more easily can assemble, improve the stability of the rear Blast Furnace Top Gas Recovery Turbine Unit (TRT) of assembling.
Of the present inventionly be further characterized in that described trapezoidal yoke 6 entirety is formed by the cutting of permeability magnetic material No. 45 steel.
The vibration condition that vibration generating device described in the present invention is suitable for refers to that frequency is 1-20Hz, vibration when vibration displacement peak value is 1-20mm.The structure of four table tops 37 distributed symmetrically and evenly in cylinder type shell 4 in the present invention is identical, all processes permanent magnet groove at medium position.Each trapezoidal yoke 6 structure is identical.Cylinder type shell 4 can be various structures mode with the fixed form of top cover 2 and bottom 9, fixedly be as the criterion to facilitate to install and stablize, as groove can be arranged on top cover, bottom, and then cylinder is fixed in groove, be screwed again, also joinery and its construction can be set on top cover, bottom and shell, then be fixed.
Blast Furnace Top Gas Recovery Turbine Unit (TRT) of the present invention can export certain voltage, the four groups of lead-out wires of coil going out line three-way hole 22 extraction from the coil of top cover 2 are not directly carry out being connected with the device of needs power supply, but need to add the follow-up electric energy treatment circuit such as rectification, filtering, voltage stabilizing, energy storage, herein so-called series and parallel connections is for the load of different rated voltages, the electric energy sent by this Blast Furnace Top Gas Recovery Turbine Unit (TRT) all needs to store through energy-storage module, has very large using value.
Embodiment illustrated in fig. 1ly to show, the agent structure of the present invention's trapezoidal yoke permanent magnetic vibration Blast Furnace Top Gas Recovery Turbine Unit (TRT) is cylinder, comprise cylinder type shell 4, top cover 2, vibrating shaft 1 and bottom 9, top cover 2 center has cylindrical hole, the side at the center of top cover 2 has coil and goes out line three-way hole 22, bottom 9 central upper portion is welded with hollow cylindrical hub 8, and hub inwall has square groove 21 (as shown in Figure 3), and hub inner bottom part hollow parts places spring 10; The bottom of vibrating shaft 1 contacts with spring 10 at hollow cylindrical hub 8; The top cover 2 that the upper end of vibrating shaft 1 passes perpendicularly through linear bearing 3 and is fixed together with it, and exceed top cover 2; Top cover 2 and bottom 9 are all connected and fixed with the two ends up and down of cylinder type shell 4 by screw in corresponding groove, make Blast Furnace Top Gas Recovery Turbine Unit (TRT) form highly stable cylindrical-shaped structure.
Inside shell 4, be distributed with four vertical table tops 37 symmetrically and evenly, the middle part of each table top 37 is all vertically placed with the tetragonal body permanent magnet 31-36 of six pieces of identical axial chargings of geomery, and adjacent permanent magnet polarity is different.The both ends of the surface up and down of the four-prism in the middle part of vibrating shaft 1 are concordant with the upper and lower end face of four permanent magnets in centre of corresponding set of permanent magnets 5 respectively, and the trapezoidal yoke 6 namely in the middle part of vibrating shaft is right against four pieces, the centre of six pieces of permanent magnets in respective mesa 37 respectively; Equidistant air gap is left respectively between the end face outside of each trapezoidal yoke 6 and the outer face of corresponding set of permanent magnets 5, two pole bodies 13 of each trapezoidal yoke 6 are wound with coil 7 respectively, two groups of coil winding directions are identical, and end is connected, and reserve two head ends as lead-out wires of coil.
Embodiment illustrated in fig. 2ly to show, be four-prism structure in the middle part of vibrating shaft 1 of the present invention, upper and lower two parts are cylindrical-shaped structure, and four of the four-prism at middle part sides process a quadrangular groove 16 respectively at middle part, to place a trapezoidal yoke 6, quadrangular groove 16 is connected with the electrode seat of trapezoidal yoke 6, and the mating shapes of the shape of quadrangular groove 16 and electrode seat 12, vibrating shaft 1 bottom has square keyway 15, is fixed in square keyway 15 by flat key 11 and forms an entirety with vibrating shaft 1.Whirling vibration axle 1, make flat key 11 give prominence to vibrating shaft part and align with the square groove 21 of hollow cylindrical hub 8 inwall, vibrating shaft slips in hollow cylindrical hub 8 along square groove 21;
Each trapezoidal yoke 6 (as Fig. 6) comprises four trapezoidal magnetic poles 14, two pole bodies 13 and an electrode seat 12, two pole bodies 13 are the identical cuboid of structure, electrode seat 12 to be adjacent both sides angle the be parallelogram of 45 °, the bottom of electrode seat 12 is fixed in the quadrangular groove 16 of vibrating shaft 1, all relative with two of electrode seat 12 long limit, two pole body 13 one end is vertical to be fixed, two trapezoidal magnetic poles 14 are vertically fixed with respectively to interior at the other end of each pole body 13, and going to the bottom of trapezoidal magnetic pole 14 is fixedly connected with corresponding pole body is vertical, distance between two on each pole body trapezoidal magnetic poles 14 is 1.5 times of trapezoidal magnetic pole bottom side length degree, four on two pole bodies 13 trapezoidal magnetic poles 14 are staggered, and four trapezoidal magnetic poles at grade, gap is had between adjacent trapezoidal magnetic pole 14, the polarity of four trapezoidal magnetic poles 14 is different successively from top to bottom, outside as four trapezoidal magnetic poles 14 is respectively N pole, S pole, N pole and S pole or be respectively S pole, N pole, S pole and N pole, each trapezoidal magnetic pole 14 is of a size of upper base 4mm, the prismatoid of the 10mm that goes to the bottom, high 10mm, thick 2mm, vertical range between two pole bodies 13 is 10mm, two pole body sizes are respectively the rectangular-shaped structure of long 30mm, wide 15mm, thick 2mm, and electrode seat 12 is long length of side 30mm, and the height of its correspondence is 10mm, both sides angle 45 °, the bottom surface of thick 2mm is the prism of parallelogram, each pole body 13 is vertically all wound with a coil 7, the coil winding direction of two pole bodies 13 in same electrode seat is all identical, and two of two of correspondence groups of coils ends are connected, reserve two head ends as lead-out wires of coil, go out line three-way hole 22 from the coil of top cover 2 to draw, four trapezoidal yoke 6 shape and structures are identical, four trapezoidal yokes 6 totally 8 coils, draw eight head ends altogether as lead-out wires of coil, the coiling direction of 8 coils is all identical, and all go out line three-way hole 22 by the coil of top cover and draw, two lead-out wires of coil that each trapezoidal yoke 6 is drawn are one group, totally four groups of lead-out wires of coil, then can as required by four groups of lead-out wires of coil or series connection or separately use.When the lead-out wires of coil in four trapezoidal yokes 6 joins end to end successively, two lead-out wires of coil reserved are equivalent to four power sources in series together, make always to export electromotive force and strengthen.In the present embodiment, each coil is 250 circles, the copper enamelled wire of coil to be wire diameter be 0.5mm.
Embodiment illustrated in fig. 3ly show, Blast Furnace Top Gas Recovery Turbine Unit (TRT) bottom 9 upper weld hollow cylindrical hub 8, spring 10 is built in hollow cylindrical hub 8 inner bottom part.Bottom 9 for radius be 42mm, the high cylindrical aluminum alloy sheets for 10mm, the top surface edge of bottom 9 is provided with the groove corresponding to shell 4, and the groove of bottom is in order to embed cylinder type shell 4; Hollow cylindrical hub 8 internal diameter 4mm, external diameter 6mm, high 30mm, assembled rear bottom 9 and can steadily contact with ground.Have square groove 21 in hollow cylindrical hub 8, the vibrating shaft one end being provided with flat key 11 is slipped in hollow cylindrical hub 8, realize propeller boss and coordinate, prevent Blast Furnace Top Gas Recovery Turbine Unit (TRT) from deflecting in vibration processes.In hollow cylindrical hub 8, placing height is the spring 10 of 25mm, and spring 10 provides restoring force for vibrating shaft 1.
Embodiment illustrated in fig. 4ly show, Blast Furnace Top Gas Recovery Turbine Unit (TRT) top cover 2 center has the cylindrical hole of diameter 4mm, within one week, has four screw holes for fixing linear bearing 3 along this cylindrical hole, and the square coil that the side at top cover 2 center has 10*10mm goes out line three-way hole 22.
Embodiment illustrated in fig. 5ly to show, four vertical table-board 37 are distributed with symmetrically and evenly inside the cylinder type shell 4 of the present invention's trapezoidal yoke permanent magnetic vibration Blast Furnace Top Gas Recovery Turbine Unit (TRT), the middle part of each table top 37 is equipped with six permanent magnet grooves, these six permanent magnet grooves are used for embedding a set of permanent magnets 5, each set of permanent magnets 5 is formed by six pieces of tetragonal body permanent magnet 31-36 of six axial chargings, six pieces of tetragonal body permanent magnet 31-36 are close to successively and are placed in corresponding permanent magnet groove from top to bottom, six pieces of tetragonal body permanent magnet 31-36 polar orientation are horizontal direction, adjacent permanent magnet polarity is different successively, polarity as the same side permanent magnet respectively from top to bottom is N pole, S pole, N pole, S pole, N pole and S pole or respectively be S pole, N pole, S pole, N pole, S pole and N pole.The internal diameter of shell 4 is 32mm, and external diameter is 38mm, and height is 120mm, and on each table top 37, the overall dimensions of six permanent magnet grooves is 10*60*1mm, and single permanent magnet is of a size of 10*10*4mm.
Dynamic process: when vibrating shaft 1 is subject to the effect of the external force F of certain change, power F is passed to spring 10, trapezoidal yoke 6 in this process on vibrating shaft 1 produces relative motion with the set of permanent magnets 5 inside cylinder type shell 4, there is deformation in spring 10, when external force disappears, due to the effect of spring 10, vibrating shaft 1 is returned to equilbrium position.In the process, along with the vibration of vibrating shaft 1, the magnetic circuit part intrinsic inductance B moment be made up of the set of permanent magnets 5 on cylinder type shell 4 and trapezoidal yoke 6 changes, according to Faraday's electromagnetic induction law, when magnetic induction density B changes, in coil, produce induced electromotive force.
Embodiment 1
The present embodiment adopts above-mentioned connected mode, and top cover 2 and bottom 9 are the cylindric plate of edge with circle shape groove, and the groove of top cover, bottom is in order to embed middle cylinder type shell 4.(each tetragonal body permanent magnet is Nd-Fe-B permanent magnet (Nd2Fe14B to six pieces of tetragonal body permanent magnet 31-36 inside cylinder type shell 4 on each table top 37, model is N45)) be longitudinally close together, polarity is contrary successively, along shell being distributed with symmetrically and evenly four groups of set of permanent magnets 5.Vibrating shaft 1 part: select middle part to be that four-prism, up and down two parts are columniform aluminium alloy (non-magnet material) as vibrating shaft 1, avoid affecting magnetic circuit.Vibrating shaft total length 120mm, two ends diameter is 8mm, the quadrangular groove size of four sides of middle part four-prism is 16*1*40mm, wherein 1mm is the thickness that quadrangular groove middle concave is entered, the four-prism at middle part is of a size of 20*20*40mm, top vibration axial length 50mm, the vibration axial length 30mm of bottom.
Each trapezoidal yoke 6 is totally four trapezoidal magnetic poles 14, and each trapezoidal magnetic pole 14 is of a size of upper base 4mm and goes to the bottom 10mm, high 10mm, thick 2mm; Vertical range between two pole bodies 13 is 10mm, two pole body sizes are long 30mm, the rectangular-shaped structure of wide 15mm, thick 2mm, electrode seat 12 is long length of side 30mm, the height of its correspondence is 10mm, both sides angle 45 °, the bottom surface of thick 2mm is the prism of parallelogram, each pole body is all wound with a coil, each coil is totally 250 circles, the copper enamelled wire of coil to be wire diameter be 0.5mm; The upper and lower end face of four permanent magnets in centre of the corresponding set of permanent magnets 5 of the difference of both ends of the surface up and down of this trapezoidal yoke 6.Four trapezoidal yokes 6 are identical.Vibrating shaft end has square keyway 15, and be fixed on by flat key 11 in square keyway 15, object prevents Blast Furnace Top Gas Recovery Turbine Unit (TRT) in vibration processes, and vibrating shaft deflects.Vibrating shaft 1 lower end end flat key 11 aims at square groove 21, and vibrating shaft slips in hollow cylindrical hub 8 along square groove and connects with hub inner spring 10, and vibrating shaft upper end exceeds linear bearing 3 and top cover 2, and prestressing force can be loaded into vibrating shaft upper end surface.
Fig. 1 is the installation diagram of trapezoidal yoke permanent magnetic vibration Blast Furnace Top Gas Recovery Turbine Unit (TRT).During test, External Force Acting in vibrating shaft 1 upper surface, vibrating shaft end and spring contact, Compress Spring.For preventing vibrating shaft 1 from deflecting in vibration processes, have the square keyway 15 of 1.5 × 2 × 4mm at vibrating shaft end, square keyway built-in enter 3 × 2 × 4mm flat key 11, flat key placed-depth is that 2mm realizes tightly connecting with vibrating shaft.Hollow cylindrical hub 8 is of a size of 4mm × 6mm × 20mm, and hub inwall has 3 × 2 × 20mm square groove 21, realizes connecting with flat key, and this propeller boss fit structure makes Blast Furnace Top Gas Recovery Turbine Unit (TRT) can not deflect in vibration processes.Four pieces of yokes on vibrating shaft are trapezoidal yoke, the part connecting two pole bodies is electrode seat, each trapezoidal yoke has four trapezoidal magnetic poles 14, trapezoidal magnetic pole 14 is vertical with pole body 13, make flow direction that 90 degree of deflections occur on pole body, after the adjacent different permanent magnet magnetization of polarity, adjacent trapezoidal magnetic pole is geomagnetic into contrary polarity; Two pole bodies 13 are wound with respectively a coil 7, when there is vibration in vibrating shaft, the polarity of same trapezoidal magnetic pole 14 can change, the magnetic flux resulting through coil changes, according to Faraday's electromagnetic induction law, coil can produce induced electromotive force, and each trapezoidal yoke that emulation obtains is reached the standard grade and is enclosed the voltage waveform (see Fig. 7) of lead-out wire.
The output EMF waveform figure that Fig. 7 is vibration frequency is 10Hz, amplitude is vibration generating device under 10mm condition.In figure, abscissa Time represents the time, and unit is second, and ordinate U represents output voltage, and unit is volt.The induced electromotive force peak value of the lead-out wires of coil as shown in Figure 7 in the single trapezoidal yoke of vibration generating device is 6.8V, the electricity consumption of the low-power equipments such as 3V, 5V can be met after rectification filtering voltage stabilizing circuit, its main cause is: 1, Blast Furnace Top Gas Recovery Turbine Unit (TRT) have employed trapezoidal yoke as magnetic conduction path, greatly can reduce leakage field, reduce air-gap reluctance, improve the Distribution of Magnetic Field in yoke; 2, coil winding is in pole body part, and the magnetic flux that this part is passed through is whole trapezoidal yoke 6 the best part, and is convenient to fixing and coiling; 3, between permanent magnet and yoke, air gap diminishes, and decreases leakage field, improves magnetic field utilance; 4, Blast Furnace Top Gas Recovery Turbine Unit (TRT) have employed closed cylindrical-shaped structure, makes Blast Furnace Top Gas Recovery Turbine Unit (TRT) utilize magnetic field to produce induced electromotive force at four sides, space, improves the utilization ratio in magnetic field and space; Simultaneously due to Blast Furnace Top Gas Recovery Turbine Unit (TRT) in space be uniformly distributed structure to vibrating shaft, each party is to the power equal and opposite in direction be subject to, then the four direction that is subject to of vibrating shaft to make a concerted effort be 0, thus when reducing vibration, act on the active force of vibrating shaft, in single trapezoidal yoke 6, lead-out wires of coil peak value is 6.8V, and Blast Furnace Top Gas Recovery Turbine Unit (TRT) has four yokes, eight lead-out wires of coil, be divided into four groups of lead-out wires of coil, the electric energy of four groups of lead-out wires of coil entirety output is larger.Experiment shows, the vibration generating device of development can meet the electricity consumption of the low-power equipments such as 3V, 5V after rectification filtering voltage stabilizing circuit.
Embodiment 2
The connected mode of the present embodiment is with embodiment 1, and difference is that top cover 2 is fixedly connected with by the mortice and tenon joint close structure matched each other with shell 4 with bottom 9.This Blast Furnace Top Gas Recovery Turbine Unit (TRT) is 1-20Hz in vibration frequency, can export larger output voltage when vibration displacement peak value is 1-20mm.
Unaccomplished matter of the present invention is known technology.
Claims (5)
1. a trapezoidal yoke permanent magnetic vibration Blast Furnace Top Gas Recovery Turbine Unit (TRT), it is characterized in that the agent structure of this Blast Furnace Top Gas Recovery Turbine Unit (TRT) is cylindrical-shaped structure, comprise cylinder type shell, top cover, vibrating shaft and bottom, the upper and lower two ends of shell are fixedly connected with top cover, bottom respectively by bolt, top cap central has cylindrical hole, the side at the center of top cover has coil and goes out line three-way hole, and bottom central upper portion is provided with hollow cylindrical hub, and hub inner bottom part hollow parts places spring; The bottom of vibrating shaft is in hub and spring contact; The top cover that the upper end of vibrating shaft passes perpendicularly through linear bearing and is fixed together with it, and exceed top cover;
The middle part of described vibrating shaft is four-prism, the upper and lower two parts of vibrating shaft are cylindrical-shaped structure, the four-prism at middle part is processed with quadrangular groove four sides, all bondingly in each quadrangular groove be placed with a trapezoidal yoke, totally four identical trapezoidal yokes of shape and structure, each trapezoidal yoke comprises four trapezoidal magnetic poles, two pole bodies and an electrode seat, two pole bodies are the identical cuboid of structure, to be adjacent both sides angle be in the bottom surface of the electrode seat parallelogram of 45 °, the bottom surface of electrode seat is fixed in the quadrangular groove of vibrating shaft, relative with two of electrode seat respectively long limit, two pole body one end is vertical to be fixed, two trapezoidal magnetic poles are vertically fixed with respectively to interior at the other end of each pole body, and going to the bottom of trapezoidal magnetic pole is fixedly connected with corresponding pole body is vertical, four trapezoidal magnetic poles on two pole bodies are staggered, and four trapezoidal magnetic poles at grade, gap is had between adjacent trapezoidal magnetic pole, the polarity of four trapezoidal magnetic poles is different successively from top to bottom, each pole body is vertically all wound with a coil, the coil winding direction of two pole bodies in same electrode seat is all identical, and two ends of two coils in same electrode seat are connected, reserve two head ends as lead-out wires of coil, these two lead-out wires of coil are one group of lead-out wires of coil, four trapezoidal yokes totally eight lead-out wires of coil, be divided into into four groups of lead-out wires of coil, these four groups of lead-out wires of coil all go out line three-way hole from the coil of top cover and draw, and the coiling direction of eight coils is all identical,
Four that are symmetrically distributed with inside cylinder type shell vertical table tops, each table top processes six permanent magnet grooves respectively at middle part, these six permanent magnet grooves embed set of permanent magnets for bonding, totally four set of permanent magnets, each set of permanent magnets includes six tetragonal body permanent magnets, six equal axial chargings of tetragonal body permanent magnet, and be close in the corresponding permanent magnet groove of embedding from top to bottom successively along the permanent magnet groove of respective mesa, the polar orientation of six tetragonal body permanent magnets is horizontal direction, and adjacent tetragonal body permanent magnet polarity is different successively; The both ends of the surface up and down of four-prism during equilbrium position in the middle part of vibrating shaft are concordant with the upper and lower end face of four permanent magnets in centre of corresponding set of permanent magnets respectively; Equidistant air gap is left respectively between the end face outside of each trapezoidal yoke and the outer face of corresponding set of permanent magnets.
2. trapezoidal yoke permanent magnetic vibration Blast Furnace Top Gas Recovery Turbine Unit (TRT) according to claim 1, the distance that it is characterized in that between two trapezoidal magnetic poles on each pole body be trapezoidal magnetic pole go to the bottom length 1.1-1.5 doubly.
3. trapezoidal yoke permanent magnetic vibration Blast Furnace Top Gas Recovery Turbine Unit (TRT) according to claim 1, it is characterized in that described hollow cylindrical hub inwall has square groove, vibrating shaft bottom has square keyway, and square keyway is connected by flat key with the square groove of hub inwall, vibrating shaft and hollow cylindrical hub is fixed.
4. trapezoidal yoke permanent magnetic vibration Blast Furnace Top Gas Recovery Turbine Unit (TRT) according to claim 1, it is characterized in that described top cover and bottom are the reeded column type aluminium alloy plate of marginal belt, the groove of top cover and bottom is in order to embed cylinder type shell.
5. trapezoidal yoke permanent magnetic vibration Blast Furnace Top Gas Recovery Turbine Unit (TRT) according to claim 1, is characterized in that overall the cutting by permeability magnetic material No. 45 steel of described trapezoidal yoke forms.
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| CN110138065A (en) * | 2019-06-18 | 2019-08-16 | 东北大学 | A kind of Vehicular electromagnetic induction power generating type charger baby detachably used |
| CN111064340A (en) * | 2020-01-15 | 2020-04-24 | 山东理工大学 | Wind-induced vibration electromagnetic power generation device based on full wind direction environment excitation |
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