CN202583334U - On-line measurement apparatus for operation noise of AC contactor - Google Patents
On-line measurement apparatus for operation noise of AC contactor Download PDFInfo
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- CN202583334U CN202583334U CN 201220173147 CN201220173147U CN202583334U CN 202583334 U CN202583334 U CN 202583334U CN 201220173147 CN201220173147 CN 201220173147 CN 201220173147 U CN201220173147 U CN 201220173147U CN 202583334 U CN202583334 U CN 202583334U
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- contactor
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- noise
- line measurement
- acceleration transducer
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Abstract
An on-line measurement apparatus for operation noise of an AC contactor comprises a noise measurement tool arranged on a production line of the AC contactor, an acceleration transducer for obtaining a surface vibration signal of the AC contactor, a signal conditioner for carrying out amplification processing to collected vibration signals, a signal acquisition card for changing output signals of the signal conditioner into processable signals, a fixing locking device for moving the AC contactor to the noise measurement tool and locking the contactor and an automatic control and display module. By adopting the acceleration transducer to collect the surface vibration signal of the AC contactor and adopting signal processing to changing into the noise signal to carry out display and detect whether the signal is qualified, the on-line measurement apparatus for operation noise of the AC contactor realizes on-line measurement of operation noise of the AC contactor on a production pipelining and can save manpower, raise production efficiency and measurement precision and realize automation of operation noise measurement of the AC contactor.
Description
Technical field
The utility model relates to a kind of running noises measurement mechanism of A.C. contactor, particularly a kind of A.C. contactor running noises on-line measurement device that is applicable to production line.
Background technology
At present, in each class factory or construction site, the A.C. contactor of the various models that are being widely used, it plays a part to be switched on or switched off electrical equipment as a kind of execution electrical equipment of circuit.A.C. contactor tends to produce the noise that makes one nervous in when work, makes the people feel tired, causes work efficiency to descend, and under this kind environment, working for a long time descends people's hearing ability significantly, and the health of execute-in-place workman health is caused bigger injury.Every A.C. contactor all will be measured its running noises before dispatching from the factory, and judges whether it meets noise criteria.The ground unrest of test environment such as workshop and streamline is generally all bigger; Measured the A.C. contactor noise measures with sound meter in anechoic room in the past; But online detection and factory inspection for A.C. contactor in enormous quantities; If in anechoic room, survey its noise figure with the labor time by platform, production efficiency is low.Therefore, the Workshop Production scene can only listen hand to touch with ear to the judge of A.C. contactor noise for many years, switches on to A.C. contactor; Make its operate as normal, the workman touches the size that the magnitude of vibrations of experiencing A.C. contactor is judged the A.C. contactor running noises with hand, obviously; This kind measuring method has very big subjective factor, is difficult to reflect objectively the size of A.C. contactor running noises, and measuring accuracy is low; And production efficiency is low, waste of manpower.In order to improve the production efficiency of A.C. contactor, save manpower, develop an A.C. contactor running noises on-line measurement device that is applicable to the workshop and be very important.
The utility model content
The fundamental purpose of the utility model is the shortcoming that overcomes prior art, provides a kind of and is applicable to production line, can save manpower, enhances productivity and the A.C. contactor running noises on-line measurement device of measuring accuracy.
The utility model adopts following technical scheme:
A.C. contactor running noises on-line measurement device includes:
Be arranged at the noise measurement frock on the A.C. contactor production line;
Be used to gather the acceleration transducer of A.C. contactor surface vibration signal;
Be used for the vibration signal that collects is carried out the signal conditioner of processing and amplifying;
Be used for but signal conditioner is exported the data acquisition card that signal changes into processing signals;
Be used for moving on the noise measurement frock A.C. contactor and the fixing and locking device of locking;
Automatically control and display module.
The signal output part of said acceleration transducer connects the signal input part of signal conditioner, and the signal output part of said signal conditioner connects the signal input part of data acquisition card, and the signal output part of said data acquisition card connects control and display module automatically.
Be connected with shock attenuation device on the said noise measurement frock.
Said acceleration transducer is installed on the noise measurement frock.
Said automatic control and display module include industrial computer that is used for control automatically and data processing and display and the warning device that is used for video data.
Can know by above-mentioned description the utility model; Compared with prior art, the beneficial effect of the utility model is: gather A.C. contactor surface vibration signal through acceleration transducer, again through signal Processing be converted into noise signal show and detect whether qualified; Realized the on-line measurement of A.C. contactor running noises on the production line; Can save manpower, enhance productivity and measuring accuracy, realize the robotization that the A.C. contactor running noises is measured.
Description of drawings
Fig. 1 is the structured flowchart of the utility model embodiment;
Fig. 2 is the algorithm flow chart that the utility model embodiment is measured the A.C. contactor noise.
Among the figure: 1. noise measurement frock, 2. acceleration transducer, 3. signal conditioner, 4. data acquisition card, 5. control and display module automatically.
Embodiment
Below the utility model is done further to describe through embodiment.
With reference to Fig. 1; A kind of A.C. contactor running noises on-line measurement device, but include the noise measurement frock 1, the acceleration transducer 2 that is used to gather A.C. contactor surface vibration signal that are arranged on the A.C. contactor production line, be used for the vibration signal that collects carry out processing and amplifying signal conditioner 3, be used for signal conditioner 3 output signals change into processing signals data acquisition card 4, be used for moving on the noise measurement frock 1 A.C. contactor and the fixing and locking device of locking and control and display module 5 automatically.The signal output part of said acceleration transducer 2 connects the signal input part of signal conditioner 3; The signal output part of said signal conditioner 3 connects the signal input part of data acquisition card 4, and the signal output part of said data acquisition card 4 connects control and display module 5 automatically.Be connected with shock attenuation device on the said noise measurement frock 1; Said acceleration transducer 2 is installed on the noise measurement frock 1, and said automatic control and display module 5 include industrial computer that is used for control automatically and data processing and display and the warning device that is used for video data.
See figures.1.and.2, the utility model carries out online detection through the vibration measuring method to A.C. contactor running noises performance.When A.C. contactor on the streamline arrives the noise measurement zone; Move on the noise measurement frock 1 it and fixing and locking by the fixing and locking device; Locking simultaneously triggers A.C. contactor and powers on, and the vibration signal of representative vibration plane when gathering the A.C. contactor operate as normal through acceleration transducer 2; Amplify conditioning through signal conditioner 3 again; But be translated into processing signals through data acquisition card 4, carry out data processing through automatic control and display module 5 at last and show, detect whether qualified simultaneously and report to the police.
See figures.1.and.2; Said acceleration transducer 2 is gathered acceleration signal; Amplify and be converted into the accessible signal of industrial computer through signal conditioner 3 and data acquisition card 4 degree of will speed up signals, said automatic control and display module 5 carry out Frequency Domain Integration with the acceleration signal of data acquisition card 4 outputs and are converted into rate signal, and rate signal carries out filtering through 1/3rd octave bandwidth filters; Again the frequency spectrum that obtains being carried out effective value takes the logarithm; Obtain vibration velocity level, draw sound power level through vibration velocity level that obtains and the acoustic radiation efficiency index curve that draws through theoretical analysis and a large amount of experiment again, sound power level is carried out the A weighted; Draw the A weighted sound power level of A.C. contactor, promptly draw noise figure.Said acoustic radiation efficiency index curve draws through repeatedly the experiment A.C. contactor being carried out acoustic radiation efficiency and theoretical analysis that noise measurement draws; The acceleration signal of the experiment A.C. contactor that degree of will speed up sensor 2 is gathered carries out Frequency Domain Integration and is converted into rate signal; Rate signal carries out filtering through 1/3rd octave bandwidth filters; Again the frequency spectrum that obtains being carried out effective value takes the logarithm; Obtain vibration velocity level, press signal, and press the mutual spectral density function call of signal to go out sound intensity signal through obtaining alliteration through the alliteration of sound pressure sensor collection experiment A.C. contactor; After converting, obtain sound power level, the sound power level through the experiment A.C. contactor that obtains draws the acoustic radiation efficiency of testing A.C. contactor with vibration velocity level.
An above-mentioned embodiment that is merely the utility model, but the design concept of the utility model is not limited thereto allly utilizes this design that the utility model is carried out the change of unsubstantiality, all should belong to the behavior of invading the utility model protection domain.
Claims (5)
1. A.C. contactor running noises on-line measurement device is characterized in that: include:
Be arranged at the noise measurement frock on the A.C. contactor production line;
Be used to gather the acceleration transducer of A.C. contactor surface vibration signal;
Be used for the vibration signal that collects is carried out the signal conditioner of processing and amplifying;
Be used for but signal conditioner is exported the data acquisition card that signal changes into processing signals;
Be used for moving on the noise measurement frock A.C. contactor and the fixing and locking device of locking;
Automatically control and display module.
2. A.C. contactor running noises on-line measurement device as claimed in claim 1; It is characterized in that: the signal output part of said acceleration transducer connects the signal input part of signal conditioner; The signal output part of said signal conditioner connects the signal input part of data acquisition card, and the signal output part of said data acquisition card connects control and display module automatically.
3. A.C. contactor running noises on-line measurement device as claimed in claim 1 is characterized in that: be connected with shock attenuation device on the said noise measurement frock.
4. A.C. contactor running noises on-line measurement device as claimed in claim 3, it is characterized in that: said acceleration transducer is installed on the noise measurement frock.
5. A.C. contactor running noises on-line measurement device as claimed in claim 1 is characterized in that: said automatic control and display module include industrial computer that is used for control automatically and data processing and display and the warning device that is used for video data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220173147 CN202583334U (en) | 2012-04-23 | 2012-04-23 | On-line measurement apparatus for operation noise of AC contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220173147 CN202583334U (en) | 2012-04-23 | 2012-04-23 | On-line measurement apparatus for operation noise of AC contactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202583334U true CN202583334U (en) | 2012-12-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220173147 Expired - Lifetime CN202583334U (en) | 2012-04-23 | 2012-04-23 | On-line measurement apparatus for operation noise of AC contactor |
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| Country | Link |
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| CN (1) | CN202583334U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108414217A (en) * | 2017-12-21 | 2018-08-17 | 深圳建溢宝电子有限公司 | Gear-box noise test system |
-
2012
- 2012-04-23 CN CN 201220173147 patent/CN202583334U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108414217A (en) * | 2017-12-21 | 2018-08-17 | 深圳建溢宝电子有限公司 | Gear-box noise test system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121205 |