CN103323192A - Motor detection device and detection method based on sound waves - Google Patents

Motor detection device and detection method based on sound waves Download PDF

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Publication number
CN103323192A
CN103323192A CN2013102438923A CN201310243892A CN103323192A CN 103323192 A CN103323192 A CN 103323192A CN 2013102438923 A CN2013102438923 A CN 2013102438923A CN 201310243892 A CN201310243892 A CN 201310243892A CN 103323192 A CN103323192 A CN 103323192A
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motor
horizontal shifting
shifting platform
platform
blimp
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CN2013102438923A
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CN103323192B (en
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杨捷
徐志华
马永钧
张斌斌
郭伟
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HANGZHOU PANGU AUTOMATION SYSTEM CO Ltd
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HANGZHOU PANGU AUTOMATION SYSTEM CO Ltd
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  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)

Abstract

The invention discloses a motor detection device based on sound waves. The motor detection device comprises a horizontally-moving platform and a sound-proof cover. A mini-type anechoic chamber is composed of the horizontally-moving platform and the sound-proof cover. The sound-proof cover is located above the horizontally-moving platform. Three measuring holes are formed in the periphery of the sound-proof cover. The three measuring holes are respectively provided with two microphones and a vibration sensor. The invention further discloses a motor detection method based on the sound waves. According to the motor detection device and detection method based on the sound waves, rapid and accurate automated line detection on motors before the delivery of the motors can be achieved, and the aspects such as the accuracy of the detection, production efficiency and production quality are qualitatively improved.

Description

Motor detection apparatus and method of testing based on sound wave
Technical field
The present invention relates to a kind of motor detection apparatus, concrete is a kind of motor detection apparatus based on sound wave.
Background technology
Existing motor detection method has two kinds: the one, and the testing agency that motor is delivered to specialty is detected; The 2nd, on production line, directly rely on the artificial experience cooperation.
The testing result of first method is reliably accurate, and each is delivered to special testing agency, not only waste time and energy, and also expensive.The method is suitable for a certain batch sampling check, and the product that becomes batch is carried out the analysis of sampling statistics, is not suitable for the detection of every product.
Second method is not because there is special-purpose check isolation platform, facility is quick for company, cost is low, but owing in the workshop, not doing safeguard procedures, the interference that is easily added, the degree of fatigue of people's mood and work, bothersome effort and detection quality can not keep stable; Because the testing staff is exposed in the working environment, working strength and difficulty further improve in addition.The detection quality of motor is difficult to guarantee more.
In sum, above method all is not suitable for the requirement to the motor oscillating detection under the present circumstances.For medium and small motor manufacturing enterprise, under the prerequisite of limited budget, be badly in need of changing the situation that relies on the artificial subjectivity of ear to detect the power machine vibration, realize the robotization that motor quality detects.
Summary of the invention
In order to solve the above-mentioned technical matters that exists in the 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 the horizontal shifting platform top, 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 the control driven by motor.
Further, also comprise cylinder, described blimp promotes mobile vertically by the piston rod of cylinder.
Further, also comprise the control air valve, the action of control Air Valve Control cylinder.
Further, described horizontal shifting platform is provided with testing of electric motors switch, WidFin guide pillar and platform inching switch, by platform inching switch and WidFin guide pillar described horizontal shifting platform is finely tuned.
The present invention also provides a kind of motor detection method based on sound wave, comprises the steps:
Step 1, driving control motor, horizontal shifting platform is withdrawed from left along the guide rail on the platform base, testing of electric motors is fixed in described horizontal shifting platform, the attaching plug for the treatment of measured motor is connected upper testing of electric motors switch, drive described control motor, make horizontal shifting platform return the original position;
Step 2, soundproof box are made of jointly blimp and described horizontal shifting platform, the control air valve of control cylinder, make piston rod mobile vertically downward, the optoelectronic switch that blimp is triggered on the horizontal shifting platform stops, small-sized anechoic room of the common composition of described blimp and horizontal shifting platform, open the upper testing of electric motors switch on the horizontal shifting platform, make and treat that measured motor places operating condition;
Microphone and vibration transducer in step 3, three measured holes by described blimp periphery are measured vibration signal and the noise signal for the treatment of measured motor;
The characteristic of step 4, collection multisample motor, carry out sampling and the storage of data 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 vibration characteristics and the noisiness relation of motor under various duties, set up the vibration noise Association repository;
Step 5, control cylinder move up, and the power supply of testing of electric motors cuts off automatically, drive the control motor horizontal shifting platform is outwards withdrawed from the taking-up testing of electric motors, finish testing procedure;
Step 6, the vibration signal and the acoustical signal that record are carried out respectively Fourier transform, power spectrumanalysis and wavelet analysis, extract characteristic frequency spectrum, the vibration signal of measured motor and the associate feature that noise signal is carried out characteristic frequency spectrum will be treated, obtain the identification code for the treatment of measured motor, carry out the contrast of noise of motor characteristic spectral line passes judgment on by the mode of tabling look-up, provide the quality state assessment of every detection motor, provide the whether qualified of motor; To the signal that had not detected, be added into the quality evaluation database.
Motor detection apparatus and detection method based on sound wave of the present invention realizes fast and accurately robotization line detection before Motor Production Test, get a qualitative improvement at aspects such as the accuracy that detects, production efficiency, product qualities.
Description of drawings
Fig. 1 is the structural representation of the motor detection apparatus based on sound wave of the present invention;
Fig. 2 is that this is based on the sectional view one of the motor detection apparatus of sound wave;
Fig. 3 is that this is based on the sectional view two of the motor detection apparatus of sound wave.
Embodiment
The invention will be further described below in conjunction with accompanying drawing.
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 horizontal shifting platform 1 top, piston rod 6 promotion blimps 2 by cylinder 5 are mobile vertically, control air valve 7 comes control cylinder 5, the periphery of blimp 2 is provided with three measured holes, be respectively arranged with two microphones 8 and vibration transducer 9 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 are finely tuned by platform inching switch 12 and 11 pairs of horizontal shifting platforms 1 of WidFin guide pillar.
The job step of the motor detection apparatus based on sound wave of the present invention is as follows:
1, installs: drive control motor 4, with the guide rail of horizontal shifting platform 1 on the platform base 3 (operator's station left, vertical paper is outside) withdraw from, testing of electric motors is fixed in horizontal shifting platform 1, the attaching plug for the treatment of measured motor is connected upper testing of electric motors switch 10, drive control motor 4, make horizontal shifting platform 1 return original position (vertical paper inwards).
2, the decline of blimp: soundproof box is made of jointly blimp 2 and horizontal shifting platform 1, the control air valve 7 of control cylinder 5, make piston rod 6 mobile vertically downward, the optoelectronic switch that blimp 2 is triggered on the horizontal shifting platform 1 stops, so far, small-sized anechoic room of blimp 2 and horizontal shifting platform 1 common composition.Open the upper testing of electric motors switch 10 on the horizontal shifting platform 1, make and treat that measured motor places operating condition.
3, noise measurement: by microphone 8 and the vibration transducer 9 in three measured holes of blimp 2 peripheries, measure vibration signal and the noise signal of motor.
4, data are processed and initialization: the vibration signal and the acoustical signal that record are carried out respectively Fourier transform, power spectrumanalysis and wavelet analysis, extract characteristic frequency spectrum, the associate feature that vibration signal and the noise signal of testing of electric motors are carried out a characteristic frequency spectrum.Gather the characteristic of multisample motor, carry out sampling and the storage of data 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 vibration characteristics and the noisiness relation of motor under various duties, set up the vibration noise Association repository.
5, testing of electric motors is fetched: control cylinder 5 moves up, and this moment, the power supply of testing of electric motors cut off automatically, and rear drive control motor 4 outwards withdraws from horizontal shifting platform 1 and makes things convenient for detection person to take out testing of electric motors, finishes testing procedure.
6, the foundation of knowledge base: the time-domain signal of measuring is carried out the data processing such as spectrum analysis, carry out sampling and the storage of data 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, set up the association knowledge database.
7, measure in real time: the motor that will need to measure is done according to step 1-6, obtains the signal of noise of motor vibration, obtains simultaneously the identification code that detects motor, and the result who measures is processed.Carry out the contrast of noise of motor characteristic spectral line by the mode of tabling look-up and pass judgment on, provide the quality state assessment of every detection motor, provide the whether qualified of motor; To the signal that had not detected, be added into the quality evaluation database.
8, the supervise of quality: each motor is provided the sign of quality evaluation and quality health, follow-up maintenance and quality state are followed the tracks of to record put on record.

Claims (6)

1. motor detection apparatus based on sound wave, comprise horizontal shifting platform (1) and blimp (2), described horizontal shifting platform (1) and blimp (2) form a small-sized anechoic room, described blimp (2) is positioned at horizontal shifting platform (1) top, it is characterized in that: the periphery of described blimp (2) is provided with three measured holes, is respectively arranged with two microphones (8) and vibration transducer (9) in three measured holes.
2. the motor detection apparatus based on sound wave as claimed in claim 1 is characterized in that: also comprise platform base (3) and control motor (4), described horizontal shifting platform (1) is arranged on the guide rail of platform base (3), is driven by control motor (4).
3. the motor detection apparatus based on sound wave as claimed in claim 1 is characterized in that: also comprise cylinder (5), described blimp (2) promotes mobile vertically by the piston rod (6) of cylinder (5).
4. the motor detection apparatus based on sound wave as claimed in claim 3 is characterized in that: also comprise control air valve (7), control air valve (7) control cylinder (5) action.
5. the motor detection apparatus based on sound wave as claimed in claim 1, it is characterized in that: described horizontal shifting platform (1) is provided with testing of electric motors switch (10), WidFin guide pillar (11) and platform inching switch (12), by platform inching switch (12) and WidFin guide pillar (11) described horizontal shifting platform (1) is finely tuned.
6. the motor detection method based on sound wave comprises the steps:
Step 1, driving control motor (4), horizontal shifting platform (1) is withdrawed from left along the guide rail on the platform base (3), testing of electric motors is fixed in described horizontal shifting platform (1), the attaching plug for the treatment of measured motor is connected upper testing of electric motors switch (10), drive described control motor (4), make horizontal shifting platform (1) return the original position;
Step 2, soundproof box are made of jointly blimp (2) and described horizontal shifting platform (1), the control air valve (7) of control cylinder (5), make piston rod (6) mobile vertically downward, the optoelectronic switch that blimp (2) is triggered on the horizontal shifting platform (1) stops, described blimp (2) forms a small-sized anechoic room jointly with horizontal shifting platform (1), open the upper testing of electric motors switch (10) on the horizontal shifting platform (1), make and treat that measured motor places operating condition;
Step 3, by microphone (8) and vibration transducer (9) in three measured holes of described blimp (2) periphery, vibration signal and the noise signal of measured motor treated in measurement;
The characteristic of step 4, collection multisample motor, carry out sampling and the storage of data 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 vibration characteristics and the noisiness relation of motor under various duties, set up the vibration noise Association repository;
Step 5, control cylinder (5) move up, and the power supply of testing of electric motors cuts off automatically, drive control motor (4) horizontal shifting platform (1) is outwards withdrawed from the taking-up testing of electric motors, finish testing procedure;
Step 6, the vibration signal and the acoustical signal that record are carried out respectively Fourier transform, power spectrumanalysis and wavelet analysis, extract characteristic frequency spectrum, the vibration signal of measured motor and the associate feature that noise signal is carried out characteristic frequency spectrum will be treated, obtain the identification code for the treatment of measured motor, carry out the contrast of noise of motor characteristic spectral line passes judgment on by the mode of tabling look-up, provide the quality state assessment of every detection motor, provide the whether qualified of motor; To the signal that had not detected, be added into the quality evaluation database.
CN201310243892.3A 2013-06-19 2013-06-19 Based on motor detection apparatus and the method for testing of sound wave Active CN103323192B (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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
CN112269130A (en) * 2020-10-15 2021-01-26 深圳市康道智能股份有限公司 Motor detection device
CN113163316A (en) * 2020-01-23 2021-07-23 上海擎动信息科技有限公司 Sound vibration collecting equipment

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN113163316A (en) * 2020-01-23 2021-07-23 上海擎动信息科技有限公司 Sound vibration collecting equipment
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
CN112269130A (en) * 2020-10-15 2021-01-26 深圳市康道智能股份有限公司 Motor detection device
CN112269130B (en) * 2020-10-15 2024-04-05 深圳市康道智能股份有限公司 Motor detection device

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