CN103323192B - Based on motor detection apparatus and the method for testing of sound wave - Google Patents
Based on motor detection apparatus and the method for testing of sound wave Download PDFInfo
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- CN103323192B CN103323192B CN201310243892.3A CN201310243892A CN103323192B CN 103323192 B CN103323192 B CN 103323192B CN 201310243892 A CN201310243892 A CN 201310243892A CN 103323192 B CN103323192 B CN 103323192B
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- 238000012360 testing method Methods 0.000 title claims abstract description 27
- 238000001514 detection method Methods 0.000 title abstract description 21
- 238000000034 method Methods 0.000 title description 7
- 238000010998 test method Methods 0.000 claims abstract description 4
- 238000005070 sampling Methods 0.000 claims description 6
- 238000001228 spectrum Methods 0.000 claims description 6
- 238000004458 analytical method Methods 0.000 claims description 4
- 238000013507 mapping Methods 0.000 claims description 4
- 238000010183 spectrum analysis Methods 0.000 claims description 4
- 239000000284 extract Substances 0.000 claims description 3
- 230000005693 optoelectronics Effects 0.000 claims description 3
- 238000001303 quality assessment method Methods 0.000 claims description 3
- 230000003595 spectral effect Effects 0.000 claims description 3
- 238000012956 testing procedure Methods 0.000 claims description 3
- 230000001960 triggered effect Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000005259 measurement Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000036651 mood Effects 0.000 description 1
- 238000013441 quality evaluation Methods 0.000 description 1
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- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses a kind of motor detection apparatus based on sound wave, comprise horizontal shifting platform and blimp, described horizontal shifting platform and blimp form a small-sized anechoic room, described blimp is positioned at above horizontal shifting platform, the periphery of described blimp is provided with three measured holes, is respectively arranged with two microphones and vibration transducer in three measured holes.The invention also discloses a kind of electric machines test method based on sound wave.Motor detection apparatus based on sound wave of the present invention and detection method realize robotization line detection fast and accurately before Motor Production Test, get a qualitative improvement in the accuracy, production efficiency, product quality etc. that detect.
Description
Technical field
The present invention relates to a kind of motor detection apparatus, particularly a kind of motor detection apparatus based on sound wave.
Background technology
Existing electric machines test method has two kinds: one to be that testing agency motor being delivered to specialty is detected; Two is directly rely on artificial experience cooperation on a production line.
The testing result of first method is reliably accurate, each is delivered to special testing agency, not only wastes time and energy, and expensive.The method is suitable for the sampling check of a certain batch, carries out the analysis of sampling statistics, be not suitable for the detection of every platform product to the product to become batch.
Second method is not because have special inspection isolation platform, for company convenient quick, cost is low, but owing to not making safeguard procedures in workshop, is easily subject to additional interference, the mood of people and the degree of fatigue of work, bothersome effort and Detection job can not keep stable; In addition because testing staff exposes in the work environment, working strength and difficulty improve further.The Detection job of motor is difficult to ensure more.
In sum, above method is all not suitable for the requirement detected motor oscillating under present circumstances.For medium and small motor manufacturing enterprise, under the prerequisite of limited budget, be badly in need of changing the situation relying on ear human subjective to detect power machine vibration, realize the robotization that motor quality detects.
Summary of the invention
In order to solve the above-mentioned technical matters existed in prior art, the invention provides a kind of motor detection apparatus based on sound wave, comprise horizontal shifting platform and blimp, described horizontal shifting platform and blimp form a small-sized anechoic room, described blimp is positioned at above horizontal shifting platform, the periphery of described blimp is provided with three measured holes, is respectively arranged with two microphones and vibration transducer in three measured holes.
Further, also comprise platform base and control motor, described horizontal shifting platform is arranged on the guide rail of platform base, by control driven by motor.
Further, also comprise cylinder, described blimp is promoted to move vertically by the piston rod of cylinder.
Further, also comprise control air valve, control the action of Air Valve Control cylinder.
Further, described horizontal shifting platform is provided with testing of electric motors switch, WidFin guide pillar and platform inching switch, is finely tuned described horizontal shifting platform by platform inching switch and WidFin guide pillar.
Present invention also offers a kind of electric machines test method based on sound wave, comprise the steps:
Step one, drived control motor, horizontal shifting platform is exited left along the guide rail on platform base, testing of electric motors is fixed on described horizontal shifting platform, to treat that the attaching plug of measured motor connects upper testing of electric motors switch, drive described control motor, make horizontal shifting platform return original position;
Step 2, soundproof box are made up of jointly blimp and described horizontal shifting platform, the control air valve of control cylinder, piston rod is moved vertically downward, the optoelectronic switch that blimp is triggered on horizontal shifting platform stops, described blimp and horizontal shifting platform form a small-sized anechoic room jointly, open the upper testing of electric motors switch on horizontal shifting platform, make to treat that measured motor is placed in operating condition;
Step 3, by the microphone in three measured holes of described blimp periphery and vibration transducer, measure and treat vibration signal and the noise signal of measured motor;
The characteristic of step 4, collection multisample motor, sampling and the storage of data is carried out according to motor type, carry out the self study of data, set up the sound field characteristic of motor and the mapping graph of motor quality performance, obtain the vibration characteristics of motor under various duty and noisiness relation, set up vibration noise Association repository;
Step 5, control cylinder move up, and the power supply of testing of electric motors cuts off automatically, and horizontal shifting platform is outwards exited taking-up testing of electric motors by drived control motor, completes testing procedure;
Step 6, respectively Fourier transform, power spectrumanalysis and wavelet analysis are carried out to the vibration signal recorded and acoustical signal, extract characteristic frequency spectrum, the vibration signal and noise signal for the treatment of measured motor are carried out the associate feature of characteristic frequency spectrum, obtain the identification code treating measured motor, the contrast being carried out noise of motor characteristic spectral line by the mode of tabling look-up is passed judgment on, provide the quality state assessment that every platform detects motor, provide the whether qualified of motor; To the signal do not detected, be added into quality assessment data storehouse.
Motor detection apparatus based on sound wave of the present invention and detection method realize robotization line detection fast and accurately before Motor Production Test, get a qualitative improvement in the accuracy, production efficiency, product quality etc. that detect.
Accompanying drawing explanation
Fig. 1 is the structural representation of the motor detection apparatus based on sound wave of the present invention;
Fig. 2 is this sectional view one based on the motor detection apparatus of sound wave;
Fig. 3 is this sectional view two based on the motor detection apparatus of sound wave.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
As Figure 1-3, motor detection apparatus based on sound wave of the present invention forms a small-sized anechoic room jointly by a horizontal shifting platform 1 and blimp 2, horizontal shifting platform 1 is arranged on the guide rail of platform base 3, driven by control motor 4, blimp 2 is positioned at above horizontal shifting platform 1, promote blimp 2 by the piston rod 6 of cylinder 5 to move vertically, control air valve 7 and carry out control cylinder 5, the periphery of blimp 2 is provided with three measured holes, two microphones 8 and vibration transducer 9 is respectively arranged with in three measured holes, horizontal shifting platform 1 is provided with testing of electric motors switch 10, WidFin guide pillar 11 and platform inching switch 12, finely tuned by platform inching switch 12 and WidFin guide pillar 11 pairs of horizontal shifting platforms 1.
The job step of the motor detection apparatus based on sound wave of the present invention is as follows:
1, install: drived control motor 4, by horizontal shifting platform 1 along (the operator's station left of the guide rail on platform base 3, vertical paper is outside) exit, testing of electric motors is fixed on horizontal shifting platform 1, to treat that the attaching plug of measured motor connects upper testing of electric motors switch 10, drived control motor 4, makes horizontal shifting platform 1 return original position (vertical paper inwards).
2, the decline of blimp: soundproof box is made up of jointly blimp 2 and horizontal shifting platform 1, the control air valve 7 of control cylinder 5, piston rod 6 is moved vertically downward, the optoelectronic switch that blimp 2 is triggered on horizontal shifting platform 1 stops, so far, blimp 2 and horizontal shifting platform 1 form a small-sized anechoic room jointly.Open the upper testing of electric motors switch 10 on horizontal shifting platform 1, make to treat that measured motor is placed in operating condition.
3, noise measurement: by the microphone 8 in three measured holes of blimp 2 periphery and vibration transducer 9, measures vibration signal and the noise signal of motor.
4, data processing and initialization: carry out Fourier transform, power spectrumanalysis and wavelet analysis respectively to the vibration signal recorded and acoustical signal, extracts characteristic frequency spectrum, the vibration signal of testing of electric motors and noise signal is carried out the associate feature of a characteristic frequency spectrum.Gather the characteristic of multisample motor, sampling and the storage of data is carried out according to motor type, carry out the self study of data, set up the sound field characteristic of motor and the mapping graph of motor quality performance, obtain the vibration characteristics of motor under various duty and noisiness relation, set up vibration noise Association repository.
5, testing of electric motors is fetched: control cylinder 5 moves up, and now the power supply of testing of electric motors cuts off automatically, and then horizontal shifting platform 1 outwards exits and facilitates detection person to take out testing of electric motors by drived control motor 4, completes testing procedure.
6, the foundation of knowledge base: the time-domain signal of measurement is carried out the data processings such as spectrum analysis, sampling and the storage of data is carried out according to motor type, carry out the self study of data, set up the sound field characteristic of motor and the mapping graph of motor quality performance, be associated knowledge data base.
7, measure in real time: the motor needing to measure is done according to step 1-6, obtains the signal of noise of motor vibration, obtain the identification code detecting motor simultaneously, the result measured is processed.The contrast being carried out noise of motor characteristic spectral line by the mode of tabling look-up is passed judgment on, and provides the quality state assessment that every platform detects motor, provides the whether qualified of motor; To the signal do not detected, be added into quality assessment data storehouse.
8, the supervise of quality: the mark each motor being provided to quality evaluation and quality health, carries out record to follow-up maintenance and quality state tracking and puts on record.
Claims (1)
1., based on an electric machines test method for sound wave, comprise the steps:
Step one, drived control motor (4), horizontal shifting platform (1) is exited left along the guide rail on platform base (3), testing of electric motors is fixed on described horizontal shifting platform (1), to treat that the attaching plug of measured motor connects upper testing of electric motors switch (10), drive described control motor (4), make horizontal shifting platform (1) return original position;
Step 2, soundproof box are made up of jointly blimp (2) and described horizontal shifting platform (1), the control air valve (7) of control cylinder (5), piston rod (6) is moved vertically downward, the optoelectronic switch that blimp (2) is triggered on horizontal shifting platform (1) stops, described blimp (2) and horizontal shifting platform (1) form a small-sized anechoic room jointly, open the upper testing of electric motors switch (10) on horizontal shifting platform (1), make to treat that measured motor is placed in operating condition;
Step 3, by the microphone (8) in three measured holes of described blimp (2) periphery and vibration transducer (9), measure and treat vibration signal and the noise signal of measured motor;
The characteristic of step 4, collection multisample motor, sampling and the storage of data is carried out according to motor type, carry out the self study of data, set up the sound field characteristic of motor and the mapping graph of motor quality performance, obtain the vibration characteristics of motor under various duty and noisiness relation, set up vibration noise Association repository;
Step 5, control cylinder (5) move up, and the power supply of testing of electric motors cuts off automatically, and horizontal shifting platform (1) is outwards exited taking-up testing of electric motors by drived control motor (4), completes testing procedure;
Step 6, respectively Fourier transform, power spectrumanalysis and wavelet analysis are carried out to the vibration signal recorded and acoustical signal, extract characteristic frequency spectrum, the vibration signal and noise signal for the treatment of measured motor are carried out the associate feature of characteristic frequency spectrum, obtain the identification code treating measured motor, the contrast being carried out noise of motor characteristic spectral line by the mode of tabling look-up is passed judgment on, provide the quality state assessment that every platform detects motor, provide the whether qualified of motor; To the signal do not detected, be added into quality assessment data storehouse.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104913355B (en) * | 2015-06-29 | 2017-10-27 | 珠海格力电器股份有限公司 | Noise treatment system, method and device of range hood |
| CN109405959A (en) * | 2018-10-16 | 2019-03-01 | 格力电器（武汉）有限公司 | motor noise testing system and method |
| CN113163316B (en) * | 2020-01-23 | 2023-03-14 | 上海擎动信息科技有限公司 | Sound vibration collecting equipment |
| CN111721440A (en) * | 2020-05-28 | 2020-09-29 | 武汉华工正源光子技术有限公司 | High-low temperature test system of optical module |
| CN112269130B (en) * | 2020-10-15 | 2024-04-05 | 深圳市康道智能股份有限公司 | Motor detection device |
| CN118649894B (en) * | 2024-07-16 | 2025-01-21 | 深圳市芯海微电子有限公司 | Automatic sorting machine for chip inspection finished products and sorting process thereof |
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| JPH10288547A (en) * | 1997-04-14 | 1998-10-27 | Shinko Electric Co Ltd | Abnormal sound monitor device |
| JP2000121428A (en) * | 1998-10-12 | 2000-04-28 | Ishikawajima Harima Heavy Ind Co Ltd | Pump vibration measuring method and vibration measuring device |
| CA2276693A1 (en) * | 1999-06-28 | 2000-12-28 | Frederic Laville | Vibration testing system and method using acoustical waves |
| CN200989795Y (en) * | 2006-09-18 | 2007-12-12 | 奇宏电子(深圳)有限公司 | Noise silencing tester |
| CN200997684Y (en) * | 2006-12-30 | 2007-12-26 | 比亚迪股份有限公司 | Sound-isolating box for inspecting audio frequency |
| CN101231847B (en) * | 2008-01-09 | 2010-11-10 | 南京航空航天大学 | Structural vibration noise initiative control method and apparatus |
| JP2009204538A (en) * | 2008-02-28 | 2009-09-10 | Ngk Spark Plug Co Ltd | Characteristic measuring device and characteristic measuring method of vibration detection sensor |
| KR20120138370A (en) * | 2011-06-15 | 2012-12-26 | 홍익대학교 산학협력단 | Anechoic chamber combined scale model noise measurement system |
| CN202485793U (en) * | 2011-12-02 | 2012-10-10 | 湖北众友科技实业股份有限公司 | Handset motor vibration testing device |
| CN203349926U (en) * | 2013-06-19 | 2013-12-18 | 杭州盘古自动化系统有限公司 | Motor detection apparatus based on sound waves |
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