CN108539880A - It is a kind of that magneto is remanufactured based on mixing stator core and mixed rotor iron core - Google Patents

It is a kind of that magneto is remanufactured based on mixing stator core and mixed rotor iron core Download PDF

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Publication number
CN108539880A
CN108539880A CN201810408905.0A CN201810408905A CN108539880A CN 108539880 A CN108539880 A CN 108539880A CN 201810408905 A CN201810408905 A CN 201810408905A CN 108539880 A CN108539880 A CN 108539880A
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stator core
section
inner ring
rotor
stator
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CN108539880B (en
Inventor
宋守许
胡孟成
李诺楠
杜毅
刘涛
许可
王文哲
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Hefei University of Technology
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Hefei University of Technology
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/02—Details of the magnetic circuit characterised by the magnetic material
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
    • H02K15/03—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2201/00—Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
    • H02K2201/03—Machines characterised by aspects of the air-gap between rotor and stator
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
    • H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Abstract

Magneto is remanufactured based on mixing stator core and mixed rotor iron core the invention discloses a kind of, mixing stator core split settings are that stator core outer ring is connected with stator core inner ring and with " T " structure intercalation；Stator core outer ring, stator core inner ring and mixed rotor iron core subsection setup in an axial direction, wherein the first rotor lamination section, the first stator core inner ring section is equal with stator core outer ring Fe-based amorphous alloy segment length and is on identical axial position, second rotor pack section, the second stator core inner ring section and stator core outer ring remanufacture that silicon steel segment length is equal and be on identical axial position, and the first rotor lamination section and the first stator core inner ring section are to remanufacture silicon steel sheet stack segment；Second rotor pack section and the second stator core inner ring section are Fe-based amorphous alloy lamination section.The present invention makes the property for remanufacturing motor effectively be promoted while the silicon steel sheet under making full use of waste and old motor disassembling.

Description

It is a kind of that magneto is remanufactured based on mixing stator core and mixed rotor iron core
Technical field
The present invention relates to motor device fields, more particularly to the mixing stator core and mixed rotor of a kind of Radial Coupling Iron core and its it is high-power remanufacture permanent magnet synchronous motor in application, belong to motor and remanufacture field.
Background technology
Since the 1960s, global economy has ignored environmental pollution with unprecedented high speed sustainable development, Bring the disastrous effects such as global warming, depletion of the ozone layer, acid rain.Some consumer goods are because of shorter, poor quality of its life cycle etc. Problem causes waste product quantity to steeply rise, this various countries are had appreciated that with the importance of environmental problem, and proposes ring in succession Border administering method and measure, but traditional environmental improvement method is end treatment, cannot fundamentally solve environmental pollution and ask Topic.Thoroughly to solve environmental problem, it is necessary to do from source.Specific to manufacturing, the entire life for considering product is sought to Influence of the period to environment maximally utilises raw material, the energy, reduces the discharge of the nuisances such as solid, liquid, gas Amount mitigates the pollution to environment.
Since 21 century, the problems such as locking into energy crisis and environmental degradation, new-energy automobile is as a low stain, height The Strategic Demand of the vehicles high fit national green development of environmental protection behaviour.However, as the big of new-energy automobile is pushed Extensively, and with the development of new-energy automobile and the passage of time, power motor pressure recovery can be increasing, to scrapping power How motor is recycled, and will be new-energy automobile development urgent problem to be solved.
Chinese patent CN105119396A (publication date 2015.12.02) discloses a kind of making again for New energy automobile motor Method is made, laminating stator iron core will be mixed and be overrided to form axially by the silicon steel laminations and Fe-based amorphous alloy of waste and old motor And it is used in and remanufactures motor.Motor is remanufactured made of this mixing laminating stator iron core assembling, in identical magnetic field Each material magnetization efficiency is different when lower operation, and each section of magnetic force being subject in an axial direction is inevitable uneven, can influence the steady of motor movement Property and safety；Secondly as the saturation magnetic induction of non-crystaline amorphous metal is smaller, Fe-based amorphous alloy is independent in an axial direction on stator Arrangement can cause the output torque for remanufacturing motor substantially to be shunk though the loss of electric machine reduces.
Japan Patent 2007-267493 discloses a kind of manufacturing method laminating iron core and the iron core, but it uses low-carbon The mode that the unlike materials such as steel disc are laminated causes to laminate the mixing to be formed because the electromagnetic performance of low-carbon steel disc is unsatisfactory Iron core will necessarily be weakened in performance, and then lead to the reduced performance of motor.
Fe-based amorphous alloy has superior soft magnet performance, and magnetic conductivity, resistance are compared with silicon steel height, coercivity, eddy current effect Small compared with silicon steel sheet, iron loss is only the 1/3-1/5 of silicon steel sheet.Since its saturation magnetic induction is less than silicon steel material saturation magnetic induction, still, If iron core is directly changed to iron-base amorphous alloy material, although the loss of electric machine reduces, can cause to remanufacture motor turn Square is shunk.
In fact, due to the above situation, development phase is mainly also in for manufacture magneto at present.
Invention content
In order to overcome the above-mentioned deficiencies of the prior art, the present invention provides a kind of based on mixing stator core and mixed rotor iron Core remanufactures magneto, can make to remanufacture motor while the silicon steel sheet under making full use of waste and old motor disassembling Property is effectively promoted.
The present invention to achieve the goals above, adopts the following technical scheme that：
The present invention is based on mixing stator cores and mixed rotor iron core the characteristics of remanufacturing magneto to be：By stator iron Core split settings are stator core outer ring and stator core inner ring, the stator core outer ring, stator core inner ring, and mixing Rotor core is mixing laminated structure；" T " font structure is used between the stator core outer ring and stator core inner ring Intercalation connects；
Stator core outer ring subsection setup in an axial direction, axially in segmental structure, at least one section of stator core Outer ring section is that stator core outer ring remanufactures silicon steel section, and rest part is stator core outer ring Fe-based amorphous alloy section；
Stator core inner ring subsection setup in an axial direction, axial segmentation structure include the first stator core inner ring section and Second stator core inner ring section, the second stator core inner ring section remanufacture silicon steel segment length phase with the stator core outer ring Deng and be on identical axial position, the first stator core inner ring section and stator core outer ring Fe-based amorphous alloy section It equal length and is on identical axial position；
Subsection setup, axial segmentation structure include the first rotor lamination section and to the mixed rotor iron core in an axial direction The both ends of two rotor pack sections, the mixed rotor iron core are disposed as the first rotor lamination section, the first rotor lamination section It is equal with the first stator core inner ring segment length and be on identical axial position；The second rotor pack section with The second stator core inner ring segment length is equal and is on identical axial position；
The first rotor lamination section is same material with the first stator core inner ring section, is to remanufacture silicon steel sheet lamination Section；The second rotor pack section is same material with the second stator core inner ring section, is Fe-based amorphous alloy lamination section.
The present invention is based on mixing stator cores and mixed rotor iron core to lie also in the characteristics of remanufacturing magneto：For The second rotor pack section determines its Fe-based amorphous alloy lamination model as follows：
Step 1 determines following relevant parameter：
Waste and old magneto relevant parameter includes：Stator interior diameter Di1, gas length g, rotor circle largest outside diameter value (Di1- 2g)；
Remanufacturing magneto relevant parameter includes：Minimal air gap length is δmin, δmin=g；
For the rotor outer circle M for the waste and old magneto that the center of circle is O：Definition：The off-centre operation center of circle of extremely interior eccentric grove is O1, The off-centre operation center of circle of interpolar eccentric grove is O2, O1It is on single magnetic pole line of symmetry A1, O2It is in adjacent two magnetic poles line of symmetry A2 On, the angle of the center line of extremely interior eccentric grove and interpolar eccentric grove is τ/2；Setting：Eccentric groove deep d in extremely1, interpolar eccentric grove Groove depth d2, extremely interior eccentric span angle θs1, interpolar bias span angle θs2, single magnetic pole line of symmetry A1 is θs1=0 position, it is adjacent Magnetic pole line of symmetry A2 is θs2=0 position；
Eccentric grove eccentricity H in extremely is obtained by formula (1) respectively1With interpolar eccentric grove eccentricity H2,
Eccentric groove radius R in extremely is obtained by formula (2) respectivelyp1With interpolar bias groove radius Rp2,
Wherein：J=1,2；
Step 2, the Fe-based amorphous alloy lamination model for determining the second rotor pack section：
With O1For the center of circle, with Rp1It is θ to draw circular arc to the angle with single magnetic pole line of symmetry for radiuss1Sector boundary at, Again along the radially outwardly extending edge for extending to rotor outer circle M of rotor outer circle M；Also, with O2For the center of circle, with Rp2Circular arc is drawn for radius extremely Angle with adjacent two magnetic poles line of symmetry is θs2At sector boundary, then along the radially outwardly extending of rotor outer circle M extend to rotor outer circle M's Edge obtains the Fe-based amorphous alloy lamination model of the second rotor pack section.
The present invention is based on mixing stator cores and mixed rotor iron core to lie also in the characteristics of remanufacturing magneto：It is described Using " " font structure intercalation connection refers to the outer circle of stator core inner ring to T between stator core outer ring and stator core inner ring "T"-shaped protrusion is set on circumferential surface, " T " groove is accordingly set on the inner peripheral surface of the stator core outer ring, described "T"-shaped Intercalation connection is formed between raised and "T"-shaped groove, the "T"-shaped protrusion is located at the position corresponding to the groove portion of stator core Place.
The present invention is based on mixing stator cores and mixed rotor iron core to lie also in the characteristics of remanufacturing magneto：It is described " T " font structure intercalation connection is to be in the yoke portion for the mixing stator core being made of stator core outer ring and stator core inner ring On position；The distance that stator core outer ring remanufactures the outer circumference surface of silicon steel section to the groove bottom of "T"-shaped groove is not less than 20mm； The distance of the outer circumference surface of stator core outer ring Fe-based amorphous alloy section to the groove bottom of "T"-shaped groove is not less than 5mm；First is fixed The distance of the groove bottom of the groove portion of sub- iron core inner ring section to the outer circumference surface of the first stator inner ring section is not less than 20mm；Second stator The distance of the groove bottom of the groove portion of iron core inner ring section to the outer circumference surface of the second stator inner ring section is not less than 5mm.
The present invention is based on mixing stator cores and mixed rotor iron core to lie also in the characteristics of remanufacturing magneto：It is described It is that under type processing such as obtains to remanufacture silicon steel sheet stack segment：By the waste and old silicon steel dismantled from waste and old motor through flattening, pickling Or physical treatment removes face coat；Stress relief annealing is carried out at a temperature of 820 DEG C -980 DEG C, soaking time is that 4-4.5 is small When, protective atmosphere is nitrogen；It cools to room temperature with the furnace, then is molded after cutting and coats new coating completion processing again.
The present invention is based on mixing stator cores and mixed rotor iron core to lie also in the characteristics of remanufacturing magneto：It is described It is that under type processing such as obtains to remanufacture silicon steel sheet stack segment：By the waste and old silicon steel dismantled from waste and old motor through flattening, pickling Or physical treatment removes face coat；So that its thickness is that be thinned be 0.20 ± 0.01mm through cold rolling, then molding after cutting, finally exists Under atmospheric condition, annealed with 900-950 DEG C of temperature, after heat preservation 3-5 minutes, cool to room temperature with the furnace, then after cutting at Type and again coating new coating completion processing, the atmosphere are N2。
The present invention is based on mixing stator cores and mixed rotor iron core to lie also in the characteristics of remanufacturing magneto：It is described It refers to that power is not less than 25kw to remanufacture magneto, and the width of stator yoke is not less than the magneto of 25mm.
Compared with prior art, the beneficial effects of the invention are as follows：
1, the first rotor lamination section, the first stator core inner ring section and mixing stator core outer ring non-crystaline amorphous metal in the present invention Segment length is equal and is on identical axial position and the second rotor pack section, the second stator core inner ring section and mixed It closes stator core outer ring and remanufactures that silicon steel segment length is equal and be on identical axial position, this structure type is effectively It ensure that the motor uniform force of axially symmetric position, reduction noise in the process of running；Its by the second rotor pack section with Second stator core inner ring section is set as equal length and on identical axial position, can effectively inhibit since iron-based is non- Peritectic alloy saturation magnetic induction small the case where causing torque to be shunk.In rated speed, the present invention remanufactures the stator core damage of motor Consumption is the 40%-70% of waste and old motor.
2, the present invention optimizes gas length distribution for the Fe-based amorphous alloy lamination model of the second rotor pack section, The harmonic content in air gap flux density is reduced, air-gap field waveform is improved, reduces core loss, increases the output of motor Torque, improves the stationarity of motor operation, and the performance of motor is improved.
3, simulation analysis shows that the present invention remanufactures the torque of motor and improves 2.6%.
4, the present invention is optimized by the Fe-based amorphous alloy lamination model to the second rotor pack section, makes to make again The motor torque for making motor is improved, and motor performance is made effectively to be promoted.
5, remanufacture that technological process is simple, is easy to realization of industrialization in the present invention；It is asked in the processing for solving waste and old silicon steel sheet While topic, electric machine combination property is significantly improved, related art scheme is suitable for each field high power permanent magnet synchronous motor, also fits For remanufacturing for multipole and pot motor.
Description of the drawings
Fig. 1 is that the present invention remanufactures motor specific implementation-structural schematic diagram；
Fig. 2 is that the present invention remanufactures motor model vertical view；
Fig. 3 is the cross-sectional view of the structure that the present invention remanufactures motor；
Fig. 4 is that non-crystaline amorphous metal rotor section rotor pack redesigns 1/8th model schematics；
Fig. 5 is to remanufacture motor with the loss of old empty load of motor with rotation speed change trend；
Fig. 6 is to remanufacture motor to compare with old motor torque；
Figure label：1 stator core outer ring, 2 stator core inner rings, 3 mixed rotor iron cores, 1-1 are " T " groove, and 2-1 is "T"-shaped protrusion, 1a stator cores outer ring remanufacture silicon steel section, 1b stator cores outer ring Fe-based amorphous alloy section, the first stators of 2a Iron core inner ring section, 2b the second stator core inner ring sections, 3a the first rotor lamination sections, 3b the second rotor pack sections.
Specific implementation mode
Referring to Fig. 1 and Fig. 2, Permanent Magnet and Electric is remanufactured based on mixing stator core and mixed rotor iron core in the present embodiment It is stator core outer ring 1 and stator core inner ring 2, stator core outer ring 1, stator core that machine, which is by stator core split settings, Inner ring 2 and mixed rotor iron core 3 are mixing laminated structure；It is adopted between stator core outer ring 1 and stator core inner ring 2 With " " font structure intercalation connects T；Refer to that "T"-shaped protrusion 2-1 is set on the outer circumference surface of stator core inner ring 2, in stator " T " groove 1-1 is accordingly set on the inner peripheral surface of iron core outer ring 1, is formed between "T"-shaped protrusion 2-1 and "T"-shaped groove 1-1 Intercalation connects, and "T"-shaped protrusion 2-1 is located at the position corresponding to the groove portion of stator core, to ensure stator core inner ring and determine The intensity of sub- iron core outer ring, relevant intercalation connection can also use the structure type of dovetail groove.
Referring to Fig. 3, in the present embodiment, by the subsection setup in an axial direction of stator core outer ring 1, axially in segmental structure, At least one section of stator core outer ring section is that stator core outer ring remanufactures silicon steel section 1a, and rest part is stator core outer ring iron Base noncrystal alloy section 1b；By stator core inner ring 2, subsection setup, axial segmentation structure include in the first stator core in an axial direction Circle section 2a and the second stator core inner ring section 2b, the second stator core inner ring section 2b remanufactures silicon steel section 1a with stator core outer ring It equal length and is on identical axial position, the first stator core inner ring section 2a and the Fe-based amorphous conjunction in stator core outer ring It golden section 1b equal lengths and is on identical axial position；The excellent Fe-based amorphous alloy material of the present embodiment utility Material can effectively reduce the loss of electric machine, promote motor performance, and make full use of the silicon steel sheet in waste and old motor, avoid the wasting of resources.
By the subsection setup in an axial direction of mixed rotor iron core 3, axial segmentation structure include the first rotor lamination section 3a and The both ends of second rotor pack section 3b, mixed rotor iron core are disposed as the first rotor lamination section 3a, the first rotor lamination section 3a With the first stator core inner ring section 2a equal lengths and be on identical axial position, the second rotor pack section 3b and second It stator core inner ring section 2b equal lengths and is on identical axial position；Due to the saturation magnetic of iron-base amorphous alloy material It is close relatively low, directly torque can be caused to shrink using iron-base amorphous alloy material in stator core inner ring, influence motor performance, this reality Applying the structure type in example can effectively inhibit motor torque to shrink situation.
The first rotor lamination section 3a and the first stator core inner ring section 2a is same material, is to remanufacture silicon steel sheet lamination Section；Second rotor pack section 3b and the second stator core inner ring section 2b is same material, is Fe-based amorphous alloy lamination section；Cause The brittleness of iron-base amorphous alloy material avoids the end that the second rotor pack section 3b is placed in mixed rotor iron core, it is ensured that Product structure is reliable.
In specific implementation, stator core outer ring 1 passes through " T " word with stator core inner ring 2 in the yoke portion for mixing stator core Type structure intercalation connects, and is arranged：
The distance that stator core outer ring remanufactures the outer circumference surface of silicon steel section 1a to the groove bottom of "T"-shaped groove is not less than 20mm；
The distance of the outer circumference surface of stator core outer ring Fe-based amorphous alloy section 1b to the groove bottom of "T"-shaped groove is not less than 5mm；
Distance of the groove bottom of the groove portion of first stator core inner ring section 2a to the outer circumference surface of the first stator inner ring section 2a Not less than 20mm；
Distance of the groove bottom of the groove portion of second stator core inner ring section 2b to the outer circumference surface of the second stator inner ring section 2b Not less than 5mm.
Referring to Fig. 4, the present embodiment is directed to the second rotor pack section 3b, determines its Fe-based amorphous alloy lamination as follows Model：
Step 1 determines following relevant parameter：
Waste and old magneto relevant parameter includes：Stator interior diameter Di1, gas length g, rotor circle largest outside diameter value (Di1- 2g)；
Remanufacturing magneto relevant parameter includes：Minimal air gap length is δmin, δmin=g；
For the rotor outer circle M for the waste and old magneto that the center of circle is O：Definition：The off-centre operation center of circle of extremely interior eccentric grove is O1, The off-centre operation center of circle of interpolar eccentric grove is O2, O1It is on single magnetic pole line of symmetry A1, O2It is in adjacent two magnetic poles line of symmetry A2 On, the angle of the center line of extremely interior eccentric grove and interpolar eccentric grove is τ/2；Setting：Eccentric groove deep d in extremely1, interpolar eccentric grove Groove depth d2, extremely interior eccentric span angle θs1, interpolar bias span angle θs2, single magnetic pole line of symmetry A1 is θs1=0 position, it is adjacent Magnetic pole line of symmetry A2 is θs2=0 position；
Eccentric grove eccentricity H in extremely is obtained by formula (1) respectively1With interpolar eccentric grove eccentricity H2
Eccentric groove radius R in extremely is obtained by formula (2) respectivelyp1With interpolar bias groove radius Rp2,
Wherein：J=1,2；
Step 2, the Fe-based amorphous alloy lamination model for determining the second rotor pack section：
With O1For the center of circle, with Rp1It is θ to draw circular arc to the angle with single magnetic pole line of symmetry for radiuss1Sector boundary at, Again along the radially outwardly extending edge for extending to rotor outer circle M of rotor outer circle M；Also, with O2For the center of circle, with Rp2Circular arc is drawn for radius extremely Angle with adjacent two magnetic poles line of symmetry is θs2At sector boundary, then along the radially outwardly extending of rotor outer circle M extend to rotor outer circle M's Edge obtains the Fe-based amorphous alloy lamination model of the second rotor pack section；
By adjusting d1、d2、θs1And θs2Value, can obtain it is different design a model, preferably：Eccentric grove in setting extremely Groove depth d1For 0.3mm, interpolar bias groove deep d2For 1mm, extremely interior eccentric span angle θs1It is 13.5 °, interpolar bias span angle θs2 It it is 18 °, this structure type can effectively reduce the harmonic content in air gap flux density, improve air-gap field waveform, reduce iron core damage Consumption, increases the output torque of motor, improves the stationarity of motor operation, the performance of motor is improved.Simulation analysis result table It reaches, the torque for remanufacturing motor improves 2.6%.
In specific implementation, for remanufacture silicon steel sheet stack segment can by as follows one or in a manner of two processing obtain：
Mode one：
The waste and old silicon steel dismantled from waste and old motor is removed into face coat through flattening, pickling or physical treatment；820 Stress relief annealing is carried out at a temperature of DEG C -980 DEG C, soaking time is 4-4.5 hours, and protective atmosphere is nitrogen；It cools to the furnace Room temperature, then be molded after cutting and coat new coating completion processing again.
Mode two：
The waste and old silicon steel dismantled from waste and old motor is removed into face coat through flattening, pickling or physical treatment；Through cold rolling Its thickness is set to be that be thinned be 0.20 ± 0.01mm, then molding after cutting, finally under atmospheric condition, with 900-950 DEG C of temperature It anneals, after keeping the temperature 3-5 minutes, cools to room temperature with the furnace, then be molded after cutting and coat new coating completion processing, institute again It is N to state atmosphere2。
It refers to that power is not less than 25mm not less than the width of 25kw, stator yoke that magneto is remanufactured in the present embodiment Magneto；Since iron-base amorphous alloy material loss is only 1/6th of silicon steel material, and the core material of heavy-duty motor Quality is larger, therefore is remanufactured to it better notable.
Inevitably there is the damage in structure in its assembly and use in dynamo sheet, these damages will lead to silicon Steel disc cannot be used directly for remanufacturing in motor；In technical solution of the present invention, and teeth portion structure intact for yoke portion, which exists, to be damaged When situation, stator core outer ring is can be used for after processing and cutting, for yoke portion damage and teeth portion it is intact in the case of, through processing and It can be used for stator core inner ring after cutting.
Table 1, which is shown, to be compared through the silicon steel sheet that remanufactures that mode in this implementation one is handled with waste and old silicon steel sheet magnetic property：
Table 1：
Table 2 is shown after the processing of mode in the present embodiment two, is remanufactured silicon steel sheet and is compared with waste and old silicon steel sheet magnetic property：
Table 2
Note：It indicates that the data such as 1 and the loss of 2 old silicon steel of table are different, is since size of sample is different, and test condition is not yet Together, wherein 1 test condition of table is P1/50, 2 test condition of table is：P1.5/50。
From Tables 1 and 2：After remanufacturing processing technology, the magnetic property of waste and old silicon steel sheet, monolithic can be promoted Loss reduces 7.36% and 1.23% respectively, and the processing through mode one its magnetic strength does not almost change, the processing through mode two its Magnetic induction intensity improves 3.10%；The processed silicon steel sheet that remanufactures has used new coating, new coating in the present embodiment Relative to the coating used for many years, insulating properties is more preferable, largely facilitates reduction eddy-current loss.
The present invention uses waste and old motor using mixing stator core and mixed rotor iron core, other parts such as electric motor end cap In available unit, make full use of the material in waste and old motor, because of the superiority of iron-base amorphous alloy material performance, and rationally Setting mixing stator core and mixed rotor iron core, and the Fe-based amorphous alloy lamination of the second rotor pack section progress model is excellent Change design, so that motor torque is increased 2.4%, iron loss reduces 40%-70%, and electric efficiency improves 1%-2%, motor It can effectively be promoted, Fig. 5 shows to remanufacture permanent magnet synchronous motor in the present invention and be lost with waste and old empty load of motor to be become with rotating speed Change trend, wherein E1 is the no-load loss of waste and old motor, and E2 is the no-load loss for remanufacturing motor；Fig. 6 is shown in the present invention The torque versus of permanent magnet synchronous motor and waste and old motor is remanufactured, wherein C1 is the torque of waste and old motor, and C2 is fixed using mixing Sub- iron core and mixed rotor iron core but the torque for remanufacturing motor not redesigned to rotor structure, C3 are to remanufacture motor Torque.

Claims (7)

1. a kind of remanufacturing magneto based on mixing stator core and mixed rotor iron core, it is characterized in that：By stator core Split settings are stator core outer ring (1) and stator core inner ring (2), the stator core outer ring (1), stator core inner ring (2) and mixed rotor iron core (3) is mixing laminated structure；In the stator core outer ring (1) and stator core inner ring (2) it is connected using " T " font structure intercalation between；
The stator core outer ring (1) subsection setup in an axial direction, axially in segmental structure, outside at least one section of stator core Circle section is that stator core outer ring remanufactures silicon steel section (1a), and rest part is stator core outer ring Fe-based amorphous alloy section (1b)；
Subsection setup, axial segmentation structure include the first stator core inner ring section to the stator core inner ring (2) in an axial direction (2a) and the second stator core inner ring section (2b), the second stator core inner ring section (2b) are made again with the stator core outer ring It makes silicon steel section (1a) equal length and is on identical axial position, the first stator core inner ring section (2a) and stator It iron core outer ring Fe-based amorphous alloy section (1b) equal length and is on identical axial position；
Subsection setup, axial segmentation structure include the first rotor lamination section (3a) to the mixed rotor iron core (3) in an axial direction With the second rotor pack section (3b), the both ends of the mixed rotor iron core are disposed as the first rotor lamination section (3a), and described It one rotor pack section (3a) and the first stator core inner ring section (2a) equal length and is on identical axial position； The second rotor pack section (3b) and the second stator core inner ring section (2b) equal length and it is in identical axial direction On position；
The first rotor lamination section (3a) is same material with the first stator core inner ring section (2a), is to remanufacture silicon steel sheet Lamination section；The second rotor pack section (3b) is same material with the second stator core inner ring section (2b), is Fe-based amorphous Alloy lamination section.
2. according to claim 1, remanufacture magneto based on mixing stator core and mixed rotor iron core, It is characterized in：For the second rotor pack section (3b), its Fe-based amorphous alloy lamination model is determined as follows：
Step 1 determines following relevant parameter：
Waste and old magneto relevant parameter includes：Stator interior diameter Di1, gas length g, rotor circle largest outside diameter value (Di1-2g)；
Remanufacturing magneto relevant parameter includes：Minimal air gap length is δmin, δmin=g；
For the rotor outer circle M for the waste and old magneto that the center of circle is O：Definition：The off-centre operation center of circle of extremely interior eccentric grove is O1, interpolar The off-centre operation center of circle of eccentric grove is O2, O1It is on single magnetic pole line of symmetry A1, O2It is on adjacent two magnetic poles line of symmetry A2, pole The angle of the center line of interior eccentric grove and interpolar eccentric grove is τ/2；Setting：Eccentric groove deep d in extremely1, interpolar bias groove deep d2, extremely interior eccentric span angle θs1, interpolar bias span angle θs2, single magnetic pole line of symmetry A1 is θs1=0 position, adjacent pole Line of symmetry A2 is θs2=0 position；
Eccentric grove eccentricity H in extremely is obtained by formula (1) respectively1With interpolar eccentric grove eccentricity H2,
Eccentric groove radius R in extremely is obtained by formula (2) respectivelyp1With interpolar bias groove radius Rp2,
Wherein：J=1,2；
Step 2, the Fe-based amorphous alloy lamination model for determining the second rotor pack section：
With O1For the center of circle, with Rp1It is θ to draw circular arc to the angle with single magnetic pole line of symmetry for radiuss1Sector boundary at, then edge The radially outwardly extending edge for extending to rotor outer circle M of rotor outer circle M；Also, with O2For the center of circle, with Rp2For radius draw circular arc to phase The angle of adjacent two magnetic pole line of symmetries is θs2At sector boundary, then along the radially outwardly extending side for extending to rotor outer circle M of rotor outer circle M Edge obtains the Fe-based amorphous alloy lamination model of the second rotor pack section.
3. remanufacturing magneto, feature based on mixing stator core and mixed rotor iron core according to claim 1 It is：It is described between stator core outer ring (1) and stator core inner ring (2) using " T " and font structure intercalation connection refer to stator "T"-shaped protrusion is set on the outer circumference surface of iron core inner ring (2), is accordingly set on the inner peripheral surface of the stator core outer ring (1) " T " groove is set, forms intercalation connection between the "T"-shaped protrusion and "T"-shaped groove, the "T"-shaped protrusion is located at stator iron At position corresponding to the groove portion of core.
4. according to claim 1 remanufacture magneto based on mixing stator core and mixed rotor iron core, special Sign is：" T " the font structure intercalation connection is to be in be mixed by what stator core outer ring (1) and stator core inner ring (2) were constituted On the yoke portion position for closing stator core；
The distance that stator core outer ring remanufactures the outer circumference surface of silicon steel section (1a) to the groove bottom of "T"-shaped groove is not less than 20mm；
The distance of the outer circumference surface of stator core outer ring Fe-based amorphous alloy section (1b) to the groove bottom of "T"-shaped groove is not less than 5mm；
Distance of the groove bottom of the groove portion of first stator core inner ring section (2a) to the outer circumference surface of the first stator inner ring section (2a) Not less than 20mm；
Distance of the groove bottom of the groove portion of second stator core inner ring section (2b) to the outer circumference surface of the second stator inner ring section (2b) Not less than 5mm.
5. according to claim 1 remanufacture magneto based on mixing stator core and mixed rotor iron core, special Sign is：The silicon steel sheet stack segment that remanufactures is that under type processing such as obtains：The waste and old silicon steel dismantled from waste and old motor is passed through Flattening, pickling or physical treatment remove face coat；Stress relief annealing, soaking time are carried out at a temperature of 820 DEG C -980 DEG C It it is 4-4.5 hours, protective atmosphere is nitrogen；It cools to room temperature with the furnace, then is molded and coats at new coating completion again after cutting Reason.
6. according to claim 1 remanufacture magneto based on mixing stator core and mixed rotor iron core, special Sign is：The silicon steel sheet stack segment that remanufactures is that under type processing such as obtains：The waste and old silicon steel dismantled from waste and old motor is passed through Flattening, pickling or physical treatment remove face coat；So that its thickness is that be thinned be 0.20 ± 0.01mm through cold rolling, then after cutting at Type is annealed finally under atmospheric condition with 900-950 DEG C of temperature, after keeping the temperature 3-5 minutes, cools to room temperature with the furnace, then It is molded after cutting and coating new coating completion processing again, the atmosphere is N2。
7. according to claim 1 remanufacture magneto based on mixing stator core and mixed rotor iron core, special Sign is：The magneto that remanufactures refers to that power is not less than 25kw, and the width of stator yoke is not less than the magneto of 25mm.
CN201810408905.0A 2018-04-27 2018-04-27 Remanufactured permanent magnet motor based on mixed stator core and mixed rotor core Active CN108539880B (en)

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