CN103683716A - Vibration aging processing device of motor iron core - Google Patents
Vibration aging processing device of motor iron core Download PDFInfo
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- CN103683716A CN103683716A CN201310672287.8A CN201310672287A CN103683716A CN 103683716 A CN103683716 A CN 103683716A CN 201310672287 A CN201310672287 A CN 201310672287A CN 103683716 A CN103683716 A CN 103683716A
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- iron core
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- aging processing
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Abstract
The invention belongs to the technical field of manufacturing of motors. In order to resolve the technical problem existing in the process of removing blanking stress of an iron core in the prior art, the invention provides a vibration aging processing device of a motor iron core. The vibration aging processing device of the motor iron core comprises a vibration platform, wherein rubber supporting legs are arranged under the vibration platform. The vibration aging processing device of the motor iron core is characterized in that an iron core pressing device is arranged in the middle of the vibration platform. The vibration aging processing device of the motor iron core further comprises a resonance vibration exciter, the resonance vibration exciter comprises a motor, an eccentric block is arranged on a motor shaft, the motor is clamped on an end portion of the vibration platform through a clamp, and the eccentric block can generate vibration impact on the vibration platform when the motor operates. The vibration aging processing device of the motor iron core further comprises a vibration aging instrument and an acceleration sensor, wherein the acceleration sensor is fixed to the surface of the iron core, and the acceleration sensor and the resonance vibration exciter are electrically connected with the vibration aging instrument. The motor iron core processed through the vibration aging processing device can improve the efficiency of the whole motor by 0.3-0.8%, the stray losses can be reduced by 15-25%, and the effect is obvious.
Description
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Technical field
The invention belongs to motor manufacturing technology field, be specifically related to the Ageing Treatment device that a kind of electric machine iron core is removed stamping-out stress, recovered magnetic property.
Background technology
Electric machine iron core forms punching by silicon steel sheet after stamping-out flute profile, and punching closed assembly is formed.Punching can cause the silicon steel sheet of the cutting line position such as the position, edge of flute profile and punching cylindrical to organize that crystal grain breaks, lattice distortion distortion exists shear stress and then cause the deterioration of punching magnetic property when punching due to the shear action of punch die, due to the rotor notch distance of positions, from air gap, shape sudden change is simultaneously maximum recently, wedge angle is more, stress is concentrated, the deterioration of magnetic property is particularly serious, and this can cause, and motor supplementary load loss increase, electric efficiency reduces.
The main technique methods of taking for the magnetic the subject of knowledge and the object of knowledge of punching after removing stamping-out stress and improving stamping-out is at present annealing heat treatment, the method is summarized as follows: after punching punching completes, iron core to punching or after folding is put in special-purpose annealing furnace, be heated to 300～500 ℃ to punching or iron core, then in stove, be filled with nitrogen, be incubated after 1～2 hour, improve again furnace temperature to 650～700 ℃, and then insulation was closed heating power supply after 3～5 hours, when furnace temperature is down to 500～600 ℃, steam is passed into annealing furnace, and be incubated after 1～3 hour, released vapour, in stove, be filled with nitrogen again, then close heating power supply, when being down to 200～300 ℃, furnace temperature will determine, to carry out nature cooling from taking out in stove for rotor punching or iron core, annealing heat treatment process process finishes.Each stage in annealing heat treatment process also has detailed air pressure requirement, at this, is not described in detail.
Adopt the power consumption of above-mentioned processing method large, the electric energy of silicon-steel sheet annealing consumption per ton is about 300kWh, consuming timely reaches 5～9 hours, and complex technical process is difficult to accurate control, and equipment volume is large.
Summary of the invention
For overcome in prior art, remove iron core stamping-out stress and improve stamping-out after existing complex technical process, length consuming time, the large shortcoming that consumes energy in the magnetic property of punching, the invention provides a kind of oscillating aging processing unit of electric machine iron core.
For realizing above-mentioned technical purpose, the technical solution used in the present invention is: the oscillating aging processing unit of electric machine iron core, it comprises a shaking platform, shaking platform below is provided with rubber feet, it is characterized in that: described shaking platform middle part is provided with iron core hold down gag, described iron core hold down gag comprises iron core backstay, core clamping-plate and clamp nut, after iron core is seated on shaking platform by iron core backstay, core clamping-plate is pressed in iron core top and locks by the clamp nut at iron core backstay top; This device also comprises resonance vibration generator, and described resonance vibration generator comprises a motor, and on motor shaft, with an eccentric block, motor is by binding clasp clamping in the end of shaking platform, and during motor rotation, eccentric block can form vibratory impulse to shaking platform; Also comprise an oscillating aging instrument, acceleration transducer, described acceleration transducer is fixed on iron core surface, and acceleration transducer, resonance vibration generator are electrically connected to oscillating aging instrument.
The oscillating aging processing unit of this electric machine iron core, utilize resonance principle, by intelligent vibration timeliness instrument, adjust the vibration frequency of vibration generator, according to the acceleration transducer feedback signal that is arranged on electric machine iron core surface, find again the natural frequency of electric machine iron core, when vibration generator frequency electric machine iron core when superimposed by the natural frequency of Ageing Treatment iron core resonates, thereby cause the vibration of the inner crystal grain of core stamping, recover lattice, reach the object of eliminating core stamping stamping-out stress and recovering iron core magnetic property, reduction stray loss, raising electric efficiency.This apparatus structure advantages of simple, process treatment time is short, and processing procedure does not need heating, and without gas or fluid discharge, the about 28kWh of silicon steel sheet Vibratory Stress consuming electric power per ton, compared with annealing heat treatment process saving energy 90%.The electric machine iron core of processing through this device can improve overall efficiency 0.3 ~ 0.8%, and stray loss can reduce by 15 ~ 25%, successful.
Accompanying drawing explanation
The structural representation that accompanying drawing 1 is this device.
Embodiment
Below in conjunction with drawings and Examples, the present invention will be further described.
As shown in Figure 1, the oscillating aging processing unit of electric machine iron core, it comprises a shaking platform 1, shaking platform below is provided with rubber feet 2, shaking platform middle part is provided with iron core hold down gag, and described iron core hold down gag comprises iron core backstay 3, core clamping-plate 4 and clamp nut 5, after iron core 6 is seated on shaking platform 1 by iron core backstay 3, core clamping-plate 4 is pressed in iron core top and locks by the clamp nut 5 at iron core backstay top.
As shown in Figure 1, this device also comprises resonance vibration generator 7, and resonance vibration generator 7 is installed in one end of shaking platform 1 by binding clasp 8.
As shown in Figure 2, resonance vibration generator 7 comprises a motor 9, and on motor shaft, with an eccentric block 10, during motor 9 running, eccentric block 10 can form vibratory impulse to shaking platform.
As shown in Figure 1, this device also comprises an oscillating aging instrument 11, acceleration transducer 12, and acceleration transducer 12 is fixed on iron core 6 surfaces, and acceleration transducer 12, resonance vibration generator 7 are electrically connected to oscillating aging instrument 11.
The specifically use procedure of this device is as follows:
1,4 rubber feet 2 are steadily placed on ground, shaking platform 1 is lain in to rubber feet 2 tops, then electric machine iron core 6 is pressed on the center line of shaking platform, the geometric center of the compacted position of electric machine iron core 6 in 4 rubber feet, degree of will speed up transducer 12 is arranged on electric machine iron core surface, degree of will speed up sensor signal cable and resonance vibration generator 7 feed cables are connected with oscillating aging instrument 11 respectively, by resonance vibration generator 7 clampings on the distolateral center of shaking platform.
2. frequency scanning before shaking:
Open intelligent vibration timeliness instrument host power supply, give the power supply of resonance vibration generator, increase gradually resonance vibration generator supply frequency, detect the vibration acceleration situation of change that iron core increases with frequency, make iron core in resonance vibration generator maximum functional rotating speed interval, produce resonance, thereby determine effective resonance point of the iron core in vibration generator effective frequency.
3. timeliness vibration:
Find after iron core resonance frequency, oscillating aging time 15 ~ 30min is set, the work of resonance vibration generator loads exciting force to iron core, when the vibration frequency of resonance vibration generator is increased to the resonance point of iron core, iron core resonates, and simultaneously resonance vibration generator keeps constant until timeliness vibration stage of resonance frequency to complete
4. can determine whether carry out multistage timeliness vibration according to the aftereffect of shaking is decisive and resolute, repeat again said process 1 ~ 2 time.
Claims (1)
1. the oscillating aging processing unit of electric machine iron core, it comprises a shaking platform, shaking platform below is provided with rubber feet, it is characterized in that: described shaking platform middle part is provided with iron core hold down gag, described iron core hold down gag comprises iron core backstay, core clamping-plate and clamp nut, after iron core is seated on shaking platform by iron core backstay, core clamping-plate is pressed in iron core top and locks by the clamp nut at iron core backstay top; This device also comprises resonance vibration generator, and described resonance vibration generator comprises a motor, and on motor shaft, with an eccentric block, motor is by binding clasp clamping in the end of shaking platform, and during motor rotation, eccentric block can form vibratory impulse to shaking platform; Also comprise an oscillating aging instrument, acceleration transducer, described acceleration transducer is fixed on iron core surface, and acceleration transducer, resonance vibration generator are electrically connected to oscillating aging instrument.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310672287.8A CN103683716A (en) | 2013-12-12 | 2013-12-12 | Vibration aging processing device of motor iron core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310672287.8A CN103683716A (en) | 2013-12-12 | 2013-12-12 | Vibration aging processing device of motor iron core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103683716A true CN103683716A (en) | 2014-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310672287.8A Pending CN103683716A (en) | 2013-12-12 | 2013-12-12 | Vibration aging processing device of motor iron core |
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| CN (1) | CN103683716A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103937956A (en) * | 2014-05-15 | 2014-07-23 | 新乡市新机创新机械有限公司 | Frequency-spectrum harmonic limitation device for large castings |
| CN106676238A (en) * | 2015-11-05 | 2017-05-17 | 株洲南车时代电气股份有限公司 | Vibration aging treatment method for railway traffic equipment large metal component |
-
2013
- 2013-12-12 CN CN201310672287.8A patent/CN103683716A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103937956A (en) * | 2014-05-15 | 2014-07-23 | 新乡市新机创新机械有限公司 | Frequency-spectrum harmonic limitation device for large castings |
| CN106676238A (en) * | 2015-11-05 | 2017-05-17 | 株洲南车时代电气股份有限公司 | Vibration aging treatment method for railway traffic equipment large metal component |
| CN106676238B (en) * | 2015-11-05 | 2018-05-15 | 株洲南车时代电气股份有限公司 | A kind of Transit Equipment band large-scale metal component vibration stress relief treatment method |
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Application publication date: 20140326 |
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| WD01 | Invention patent application deemed withdrawn after publication |