CN102954105A

CN102954105A - Full-magnetic suspension aerogenerator adopting full-magnetic suspension bearings, and motor adopting full-magnetic suspension bearings

Info

Publication number: CN102954105A
Application number: CN2011102401366A
Authority: CN
Inventors: 唐建一
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-08-19
Filing date: 2011-08-19
Publication date: 2013-03-06

Abstract

The invention relates to a full-magnetic suspension aerogenerator adopting full-magnetic suspension bearings, and a motor adopting the full-magnetic suspension bearings. The full-magnetic suspension bearings, which are respectively formed by shaft magnet rings confined on a rotation shaft, shell magnet rings having a same magnetism, arranged on a shell and positioned on the periphery of the shaft magnet rings, and a magnetic-conductive cover iron ring, substitute mechanical bearings; there are ring distances between the shaft magnet rings and the shell magnet rings; the shaft magnet rings and the shell magnet rings have a same magnetism in an axial direction and are repellent in a radial direction; two cover iron rings are attached to the two magnetic pole faces in the axial directions of the shell magnet rings; the axial widths of the shell magnet rings are greater than the axial widths of the shaft magnet rings, and there are axial distances between the shaft magnet rings and the cover iron rings; the cover iron rings are covered on the axial magnetic pole faces of the shaft magnet rings; the shaft magnet rings and the cover iron rings have a same magnetism and are repellent in the axial direction; the shaft magnet rings have omnibearing positioning magnetic bearings through the inward extrusion of the radial and axial magnetic repulsions; and the rotation shaft having two full-magnetic suspension bearings at two edges and connected with a rotor is medially, magnetically suspended in the middle of the round inner cavity of a stator in a bearing rigidity manner. There is no friction or frictional loss, so power and energy are saved; there is no abrasion, so the service lives of the aerogenerator and the motor are improved; and the aerogenerator and the motor have the advantages of simple structure, low cost and strong practicality.

Description

Adopt full magnetic suspension wind force power generator and the motor of full magnetic suspension bearing

Technical field: magnetic suspension bearing, magnetic suspending wind turbine generator and motor

Technical background:

Wind-driven generator, blower fan, motor-drive pump class, Deng, the mechanical bearing in interior is easily damaged parts, because the fan blade of this class electromechanics is to weigh greatly, gross weight is pressed on the mechanical bearing by rotating shaft, and pressure strengthens with regard to friction greatly, adds that again wind-force also produces pushing tow and twisting to mechanical bearing, all caused can't bear the heavy load of mechanical bearing, not only friction and friction are very large, friction loss strengthens, the wearing and tearing of mechanical bearing are accelerated, and have ground away, and rotation is obstructed, also generation is shaken and is jolted, and complete machine can't work, so, actual working life is not long, and it is removed from the high-altitude, the on-the-spot mechanical bearing of changing, or send to factory, maintenance is good, again the transportation past, high vacant lot installs again, and all are all very difficult, real non-desirable, mostly can only stop using or scrap, unfortunately tangible, but this is universal phenomenon; Certainly, can adopt magnetic suspending wind turbine generator and the motor of the magnetic suspension bearing that does not have friction, but existing report or patent, what have only is experiment product, has plenty of to lack scientific and have a false reputation, and have plenty of too complicated, the difficult making, high cost, it is not comprehensive to have plenty of performance, unstable, so be to shoulder heavy responsibilities; Adopt permanent magnetism and electromagnetic combination such as patent 200910025506.7, too complicated, the regulation and control difficulty, cost is too high; And as 0115303.2 only have radially magnetic bearing power, axially be unsettled; And for example the 200620035333.9 and 200820129979.2 whole magnet rings that adopt the non-common footpath magnetropism that can't cash purchase arrives need especially processing, and diametrical magnetization are difficult, the cost height; Some patent, as, 200510098871.2 and 2180081.01010 adopt arc or the tapered magnet of abnormity, make difficulty, and magnetic is carried not high, and cost is higher; And as, 200910024727.2 also is complicated, cost is also higher; Another kind of patent, as: ZL200610011434.7 and 200620022803.8, the technological scheme that adopts all is to keep original mechanical bearing, add again in addition usefulness " Permanent-magnet bearing ", use " magnetic force that makes progress that the potential difference of magnetic pole produces is to eliminate gravity effect ", but size of the magnetic force that " potential difference " difficult accurately regulation and control make progress, and the magnetic because of each magnet is different in producing, so, the effect of " elimination of gravity effect " is difficult consistent, in addition, even its axial supporting stiffness is larger, but be folded to atomic little " play " of bearing, its axially mounting effect be reduced to be difficult to up to standard, and, magnetic structure is complicated, and the magnetic force utilization ratio is lower, and cost is higher; Also has a class patent, as: 03145050.4, the radial magnetic bearing that consists of with the magnet ring of scolding type of inside and outside two coaxial same magnetic, it axially is unsettled, just not saying this, but because of, interior outer magnetic ring is " coaxial ", has interannular to open distance between interior outer magnetic ring, will inevitably sink when being subject to the internal magnetic ring of downforce of gross weight of heavy rotating shaft and not placed in the middle, then, interannular lower held apart from can diminishing, because of the gap between rotor and the stator very little (approximately: 0.5 millimeter), then, rotor not placed in the middle, can run into the inner chamber (wiping shell) of stator during rotation and make the rotation be obstructed or stall; So, more than, all need improve raising; Described magnetic suspension bearing, be in maglev electronic product can be practical, must be, radial and axial enough supporting stiffness are arranged, structure is uncomplicated, material is easy to get, volume is little, cost is low, Installation and Debugging are convenient.

Summary of the invention:

Goal of the invention:

Employing is by axle magnet ring and shell magnet ring and cover the non-coaxial full magnetic bearing of entirely scolding type that iron hoop forms with the replacement mechanical bearing, becomes full magnetic suspension wind force power generator and motor; Make cover have the rotating shaft of axle magnet ring can obtain the magnetic bearing power of radial and axial comprehensive location and have comprehensive supporting stiffness ground medially magnetic suspension in the middle of the round inner chamber of stator; Because not contact, thereby not friction and friction loss, also not wearing and tearing have improved the efficient of generating and electricity consumption, have improved working life significantly; Complete machine simple in structure, material is easy to get, and is easy to make, and cost is low, and is non-maintaining, practical.

Concrete technological scheme:

The present invention adopts two full magnetic suspension bearings that do not have friction that do not contact to replace each mechanical bearing of two ends of rotor, become full magnetic suspension wind force power generator and motor, thereby make aerial in the centre of the round inner chamber of stator of the rotating shaft of load-bearing and in all directions magnetic suspension of rotor, wind-driven generator and the motor of the full magnetic suspension of mechanical bearing have been realized not having, friction and friction have been eliminated fully, and friction loss and wearing and tearing, just all solved the drawback that adopts mechanical bearing;

The full magnetic suspension bearing be by cuff at the shell magnet ring of the hollow circle of large and that be in the axle magnet ring periphery with the described axle magnet ring of the ratio on being contained in housing of axle magnet ring of the hollow circle in the rotating shaft of the rotation of wind-driven generator or motor and outer ring and the covering iron hoop that is mounted on the magnetic conduction that iron plate that the identical hollow usefulness of two each profiles on two axial each magnetic pole strengths of shell magnet ring has magnetic conductance makes consisted of; Axle magnet ring and shell magnet ring right and wrong are on the same axle vertical plane coaxially; There is interannular to open distance between axle magnet ring and the girdle; Axle magnet ring and shell magnet ring all are axial magnetic, namely, two opposing and magnetic pole strengths of different magnetic are each other axially being arranged, and axle magnet ring and shell magnet ring are identical and repel each other in a certain axially magnetic of corresponding magnetic pole strength, then, also identical and repel each other in the magnetic of another axial corresponding magnetic pole strength, thereby the magnetic repulsion of two strands of two like magnetic poles repel each others that have between axle magnet ring and the shell magnet ring and radially repelling each other, namely, described axle magnet ring has been subject to the inside equilibrium extruding radially of the magnetic repulsion of peripheral shell magnet ring, axle magnet ring and rotating shaft have obtained to resist the magnetic bearing power with radial location effect of radial displacement, and have the supporting stiffness be located in the axial magnetic state; Two identical described covering iron hoops of profile are mounted on two axial magnetic pole strengths of shell magnet ring respectively; The axial width of shell magnet ring is greater than the axial width of axle magnet ring, and the symmetrical distance of axially opening is arranged between the covering iron hoop that each of axle magnet ring and both sides is, covers iron hoop and radially is being the axial magnetic pole strength that is covered in the axle magnet ring; Magnetic with covering iron hoop of magnetic conductance is and be identical by the magnetic of this magnetic pole strength of the shell magnet ring that mounted, then, the magnetic of the magnetic pole strength that should be capped of the magnetic of covering iron hoop and axle magnet ring is also identical, thereby, two covering iron hoops of axle magnet ring and both sides axially are being all to be to repel each other with magnetic, the axle magnet ring is subject to the inside equilibrium extruding of magnetic repulsion of two bursts of axial face-offs of the covering iron hoop of both sides, and the Give cuff has the rotating shaft of shell magnet ring to have the supporting stiffness of the axial displacement resisted with the magnetic bearing power of axially locating; Because cuff has the rotating shaft of axle magnet ring all to have in all directions the positioning action of magnetic bearing power and have the supporting stiffness radial and axial, described full magnetic suspension bearing has just played the effect of mechanical bearing fully, thereby can replace mechanical bearing; Described axle magnet ring and shell magnet ring radially are being " non-coaxial " mutually, described non-coaxial referring to, when the gross weight of the rotating shaft of load-bearing awards the axle magnet ring with downward larger pressure, at this moment, described interannular open apart from be lower open apart from less than on open distance owing to open apart from little with regard to the magnetic repulsion increase, so that the suffered magnetic repulsion that makes progress of axle magnet ring and rotating shaft is greater than downward magnetic repulsion, the magnetic repulsion that makes progress of the difference of this two power is equilibrated at the gross weight of deadweight and the load-bearing of rotating shaft; Described open up and down apart from difference increase with the gross weight of rotating shaft, as, because of fan blade weight much larger than rotor weight, open apart from less than the lower distance of opening in rotor magnetic suspension bearing by another near lower in the magnetic suspension bearing of fan blade; Regulate respectively the height of each shell magnet ring of rotor both sides, make axis of spindle (axis of the ring heart by the axle magnet ring) coincide with the machine center line (medial axis in the center of circle of the round inner chamber of stator) of wind-driven generator or motor completely, make rotating shaft and rotor up and down equally be centered at the centre in the round Inner chamber of stator fully in the gap, at this moment, shell center line (axis of the ring heart by the shell magnet ring) is higher than described axis of spindle; Fan blade in the rotating shaft of axle magnet ring is arranged when cover, the lateral thrust of wind-engaging and when making the axle magnet ring that the tendency of backward displacement be arranged by rotating shaft, namely, described axially open apart from after open apart from dwindling and before open apart from enlarging, then, the suffered rear magnetic repulsion of axle magnet ring is greater than front magnetic repulsion, namely, upwind magnetic bearing power forward and supporting stiffness with axially locating have been produced, to resist the axial displacement of wind-force pushing tow; And magnet strengthens, and reduces out distance, magnetic repulsion and magnetic bearing power and supporting stiffness is improved, to satisfy the demands.

Beneficial effect:

With full magnetic suspension wind force power generator and the motor of comprehensive magnetic suspension bearing replacement mechanical bearing, not friction and friction loss, not wearing and tearing, improved generating and power consumption efficiency, electricity saving and energy saving reduces maintenance, improve the operating life of complete machine, and adopted full magnetic suspension bearing of the present invention, simple in structure, cost is low, reliable performance, small and exquisite, manufacturing and debugging and easy for installation, practical, application value is arranged.

Description of drawings:

Numbering:

1, casing 2, rotating shaft 3, fan blade 4, rotor 5, stator 11, full magnetic suspension bearing 12, axle magnet ring 13, shell magnet ring 14, magnetic conduction iron hoop 20, lower opening apart from 21, on open apart from 22, axis of spindle 23, shell center line 24, machine center line 30 is installed screw

Accompanying drawing: accompanying drawing 1: structure is always schemed

Embodiment:

Embodiment 1: see accompanying drawing 1

Outside fixing casing 1, at the front end of the rotating shaft 2 of rotation fan blade 3 is housed; In the casing 1, rotor 4 is equipped with at the middle part of rotating shaft 2, and on the casing 1 of rotor 4 corresponding sections stator 5 is housed; Between rotor 4 and the stator 5 gapped 6; Each identical full magnetic suspension bearing 11 is housed in the axial both sides of rotor 4; Full magnetic suspension bearing 11 is, has in the axle magnet ring 12 cuff rotating shafts 2 of axial magnetic, and the shell magnet ring 13 that has axially with magnetic in the periphery of axle magnet ring 12 is contained on the casing 1, has interannular to open distance between axle magnet ring 12 and the shell magnet ring 13; On two axial magnetic pole strengths of shell magnet ring 13, all be pasted with identical magnetic conduction iron hoop 14; The axial width of shell magnet ring 13 is greater than the axial width of axle magnet ring 12; The identical distance of axially opening is arranged between axle magnet ring 12 and the axial both sides magnetic conduction iron hoop 14; Magnetic with magnetic conduction iron hoop 14 of magnetic conductance is that the magnetic of this magnetic pole strength of mounting with the quilt of shell magnet ring 13 is identical; Axle magnet ring 12 is that the shell magnet ring 13 with the periphery is to repel each other with magnetic, and radially, axle magnet ring 12 is subject to the inside equilibrium extruding of magnetic repulsion, and simultaneously, axle magnet ring 12 also has been subject to two inside extruding with the magnetic repulsion of two bursts of face-offs of the magnetic conduction iron hoop 14 of magnetic of axial both sides respectively; Namely, axle magnet ring 12 has been subject to the inside omnibearing extrusion of radial and axial magnetic repulsion, and obtained the magnetic bearing power of comprehensive location, thereby axle magnet ring 12 is to have comprehensive supporting stiffness earth magnetism to be suspended among the space in magnetic conduction iron hoop 14 interior of shell magnet ring 13 and both sides; Then, the rotating shaft 1 of overlapping the axle magnet ring 13 that each full magnetic suspension bearing 11 of both sides is arranged also has supporting stiffness earth magnetism and is suspended in the air, then, is contained in the rotor 4 of the rotation in the rotating shaft 1, also is that magnetic suspension is among the space of the round inner chamber of stator 5; Because axle magnet ring 12 is subject to the downforce of the gross weight of rotating shaft 2 and fan blade 3 and rotor 4 etc., interannular is opened distance lower open apart from 20 will diminish and on open apart from 21 and become large, like this, the axis of spindle 22 of axle magnet ring 12 (axis of the ring heart by axle magnet ring 12) can be lower than the shell center line 23 (axis of the ring heart by shell magnet ring 13) of shell magnet ring 13, also be lower than the machine center line 24 (medial axis in the center of circle of the round inner chamber of stator 5) of motor, then, rotating shaft 2 and rotor 4 just can not be centered in the round inner chamber of stator 5, and rotor 4 will " be wiped shell " in the bottom of stator 5, at this moment, just should regulate the installation screw 30 of shell magnet ring 13, shell magnet ring 13 is being installed in position on the casing 1 in to improve, also namely improve shell center line 23, then, rotating shaft 2 and rotor 4 and axle magnet ring 12 have all correspondingly synchronously improved, also just improved axis of spindle 22, can bring up to axis of spindle 22 and coincide with machine center line 24, then, the round inner chamber that axle magnet ring 12 and rotating shaft 2 and rotor 4 also will be centered at stator 5 has fully suffered, to reach requirement; In accompanying drawing 1, because each magnetic suspension bearing 11 of one of the both sides of rotating shaft 2 all is identical, so only shown a magnetic suspension bearing 11 (dotted line side rectify in) at close fan blade 3 places, and of another side, because of just the same, only shown that dotted line side rectifies, specifically do not repeat interior middle pattern.

Claims

1. full magnetic suspension wind-force electrical machinery and a motor that adopts the full magnetic suspension bearing is characterized in that, replaced two mechanical bearings of rotor both sides with two non-coaxial full magnetic suspension bearings; Described full magnetic suspension bearing by cuff at the axle magnet ring in the rotating shaft be contained in the shell magnet ring of the periphery that is in described axle magnet ring on the housing and the covering iron hoop of magnetic conduction is consisted of; Described axle magnet ring and shell magnet ring are on the same axle vertical plane, have interannular to open distance between described axle magnet ring and the shell magnet ring; Described axle magnet ring and shell magnet ring all are axial magnetic, namely, all have axial two opposing and magnetic pole strengths of different pole each other, described axle magnet ring all is to repel each other with magnetic with described shell magnet ring at the corresponding magnetic pole strength of axial two couple, then, described axle magnet ring and described shell magnet ring are radially repelling each other; Two described covering iron hoops are mounted on respectively on two described magnetic pole strengths of described shell magnet ring; The axial width of described shell magnet ring is greater than the axial width of described axle magnet ring; The symmetrical distance of axially opening is arranged between the described covering iron hoop of described axle magnet ring and both sides, and described covering iron hoop is covered in the magnetic pole strength of described axle magnet ring; The magnetic of described covering iron hoop respectively and by the magnetic of this magnetic pole strength of the described shell magnet ring that mounted and and the Magnetic Phase of the capped magnetic pole strength of described axle magnet ring with.

2. want 1 described a kind of full magnetic suspension wind force power generator and motor that adopts full magnetic bearing according to right, it is characterized in that, described axle magnet ring is subject to the inside equilibrium extruding of two strands of magnetic repulsions radially of peripheral described shell magnet ring, and also be subject to simultaneously axial both sides described covering iron hoop same Magnetic Phase repulsion face-off inside equilibrium extruding and obtain omnibearing magnetic bearing power, cover has the rotating shaft of each described axle magnet ring of two ends, has comprehensive supporting stiffness earth magnetism and is suspended in the air.

3. a kind of full magnetic suspension wind force power generator and motor that adopts the full magnetic suspension bearing according to claim 1, it is characterized in that, described non-coaxial referring to, be subject to the downward pressure of the gross weight of heavy described rotating shaft because of described axle magnet ring, described interannular open apart from must be lower open distance less than on open distance, then, the non-shell center line that is lower than coaxially described shell magnet ring of the axis of spindle of described axle magnet ring.