AU2021104455A4 - Circuit breaker spring defect detection device based on magneto-acoustic emission technology - Google Patents
Circuit breaker spring defect detection device based on magneto-acoustic emission technology Download PDFInfo
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- AU2021104455A4 AU2021104455A4 AU2021104455A AU2021104455A AU2021104455A4 AU 2021104455 A4 AU2021104455 A4 AU 2021104455A4 AU 2021104455 A AU2021104455 A AU 2021104455A AU 2021104455 A AU2021104455 A AU 2021104455A AU 2021104455 A4 AU2021104455 A4 AU 2021104455A4
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- Australia
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- detection device
- circuit breaker
- breaker spring
- magneto
- spring
- Prior art date
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- 238000001514 detection method Methods 0.000 title claims abstract description 66
- 230000007547 defect Effects 0.000 title claims abstract description 33
- 238000005516 engineering process Methods 0.000 title claims abstract description 19
- 230000005284 excitation Effects 0.000 claims abstract description 20
- 229910052701 rubidium Inorganic materials 0.000 claims description 6
- IGLNJRXAVVLDKE-UHFFFAOYSA-N rubidium atom Chemical compound [Rb] IGLNJRXAVVLDKE-UHFFFAOYSA-N 0.000 claims description 6
- 238000004146 energy storage Methods 0.000 abstract description 11
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000000644 propagated effect Effects 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 239000010985 leather Substances 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910001172 neodymium magnet Inorganic materials 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000013139 quantization Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
- G01N27/725—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables by using magneto-acoustical effects or the Barkhausen effect
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
Landscapes
- Chemical & Material Sciences (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Electrochemistry (AREA)
- Automation & Control Theory (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
Disclosed is a circuit breaker spring defect detection device based on a
magneto-acoustic emission technology. The circuit breaker spring defect detection
device comprises a circuit breaker spring, a signal emission system, an excitation coil, a
receiving coil, a transducer and a detection device, wherein the excitation coil and the
receiving coil are respectively wound at two ends of the circuit breaker spring, the
signal emission system is connected with the excitation coil, the transducer is connected
with the receiving coil, and the signal emission system is connected with the detection
device; and the transducer is connected with the detection device through a
pre-amplifier and a main amplifier in sequence. According to the circuit breaker spring
defect detection device, when the damage state of the circuit breaker spring is detected,
the magneto-acoustic emission technology is adopted for detection, and therefore
whether defects exist in an energy storage spring or not, the position where the defects
occur and the defect damage condition can be accurately judged.
-1/2
DRAWINGS
Detection device
transmittingO
Syste - - - -
Excitaion ra r Receiving_
coil ~ springcolz$
FIG. 1
1
Description
-1/2
Detection device
transmittingO Syste - - - -
Excitaion ra r Receiving_ coil ~ springcolz$
FIG. 1
[01] The present disclosure belongs to the technical field of circuit breakers, and more specifically relates to a circuit breaker spring defect detection device based on a magneto-acoustic emission technology.
[02] In the circuit breakers such as a pneumatic-spring operating mechanism and a spring operating mechanism, an operating spring serves as operating power of the breakers and plays an important role in operation performance and reliability of the breakers, and due to the fact that the spring works under a compression or stretching variable load in the breakers, fatigue aging, deformation and even fracture phenomena inevitably occur after long-term use of the spring. As the service life of the circuit breaker is prolonged, the operating spring fatigue problem of the circuit breaker is gradually prominent. In recent years, circuit breaker faults caused by deterioration of operation spring performance and breakage have occurred.
[03] Energy storage motor current detection mainly discovers problems of an energy storage motor and cannot visually reflect circuit breaker spring faults; static and dynamic stress states of an energy storage spring of the circuit breaker are tested by Jeong-Hyun Sohn and the like and are compared with a simulation model, but the spring needs to be detached for off-line detection in the test process, and the state of the spring cannot be detected in the operation and action process of the circuit breaker.
[04] Therefore, how to provide a circuit breaker spring defect detection device based on a magneto-acoustic emission technology is a problem urgently needed to be solved by technicians in the field.
[05] For this purpose, the present disclosure provides a circuit breaker spring defect detection device based on a magneto-acoustic emission technology, when the damage state of the circuit breaker spring is detected, the magneto-acoustic emission technology is adopted for detection, and therefore whether defects exist in an energy storage spring or not, the position where the defects occur and the defect damage condition can be accurately judged.
[06] In order to achieve the above purpose, the present disclosure adopts the following technical scheme:
[071 The circuit breaker spring defect detection device based on a magneto-acoustic emission technology comprises a circuit breaker spring, a signal emission system, an excitation coil, a receiving coil, a transducer and a detection device, wherein the excitation coil and the receiving coil are respectively wound at two ends of the circuit breaker spring, the signal emission system is connected with the excitation coil, the transducer is connected with the receiving coil, and the signal emission system is connected with the detection device; and the transducer is connected with the detection device through a pre-amplifier and a main amplifier in sequence.
[08] Preferably, a filter is arranged between the main amplifier and the detection device, the main amplifier is connected with the filter, and the filter is connected with the detection device through an A/D converter.
[09] Preferably, a shell is arranged on the outer side of the circuit breaker spring, a baffle is installed at the top end of the shell, and a rubidium magnet is installed in the baffle.
[10] Preferably, the transducer is arranged around the outer side of the receiving coil.
[11] Preferably, the detection device has a defect alarm function.
[12] The present disclosure has the following beneficial effects:
[131 Because the surface of the energy storage spring of a circuit breaker in work can generate rust, paint leather and other substances which influence the surface smoothness of a steel wire of the energy storage spring, the magnetic-acoustic emission technology is adopted for detection, and the limitation that the surface of an object to be detected needs to be cleaned and polished in a traditional ultrasonic flaw detection method is overcome, so that the detection efficiency is greatly improved; when the damage state of the circuit breaker spring is detected, the magneto-acoustic emission technology is adopted for detection, so that whether defects exist in the energy storage spring or not, the position where the defects occur and the defect damage condition can be accurately judged; and meanwhile, after the detection device is installed, the circuit breaker does not need to quit operation during detection, detection equipment is used for detection during daily substation inspection, and the operation is easy and convenient.
[14] In order to illustrate the technical scheme in the embodiment of the present disclosure or in the prior art more clearly, the attached figures needing to be used in the embodiment or in the description in the prior art are simply described. Apparently, the embodiments in the following description are merely a part rather than all of the embodiments of the present disclosure. For any person skilled in the art, under the premise of without contributing creative labor, other attached figures further can be obtained according to these attached figures.
[15] FIG. 1 is a structure diagram of the present disclosure.
[161 FIG. 2 is a structural schematic diagram of a circuit breaker spring in the present disclosure.
[171 Reference signs in drawings:
[181 1, circuit breaker spring; 2, excitation coil; 3, receiving coil; 4, transducer; 5, shell; 6, baffle; 7, rubidium magnet.
[19] The following clearly and completely describes the technical scheme in the embodiments of the present disclosure with reference to the attached figures in the embodiments of the present disclosure. Apparently, the described embodiments are merely a part rather than all of the embodiments of the present disclosure. All other embodiments obtained by those skilled in the art based on the embodiments of the present disclosure without creative efforts shall fall within the protection scope of the present disclosure.
[20] Referring to FIG. 1 to FIG. 2, the present disclosure provides a circuit breaker spring defect detection device based on a magneto-acoustic emission technology. The circuit breaker spring defect detection device comprises a circuit breaker spring, a signal emission system, an excitation coil, a receiving coil, a transducer and a detection device, wherein the excitation coil and the receiving coil are respectively wound at two ends of the circuit breaker spring, the signal emission system is connected with the excitation coil, the transducer is connected with the receiving coil, and the signal emission system is connected with the detection device; and the transducer is connected with the detection device through a pre-amplifier and a main amplifier in sequence.
[21] In another embodiment, a shell is arranged on the outer side of the circuit breaker spring, a baffle is installed at the top end of the shell, and a rubidium magnet is installed in the baffle. The circuit breaker spring is arranged in the shell, so that the guide effect on a circuit breaker is realized, and the protection effect on the circuit breaker spring can be achieved; and the rubidium magnet is installed in the baffle, so that an excitation signal received by the excitation coil can generate an ultrasonic signal under the combined action of the rubidium magnet, the circuit breaker spring and the excitation coil.
[22] A signal transmitting instruction is given to a signal transmitting system through the detection device, the signal transmitting system transmits a sine excitation signal with adjustable frequency, cycle number and amplitude to the excitation coil, the ultrasonic signal is generated under the combined action of the neodymium magnet, the circuit breaker spring and the excitation coil, and the ultrasonic signal is propagated along a steel wire of the circuit breaker spring, ultrasonic wave reflection occurs when damage exists in or on the surface of the steel wire of the circuit breaker spring, and when the ultrasonic signal propagated along the steel wire of the circuit breaker spring and the ultrasonic signal reflected due to the damage of the steel wire of the circuit breaker spring are propagated to the receiving coil, an electric signal is converted through the receiving coil under the action of the transducer; and a signal receiving instruction is given to the signal receiving system through the detection device, the pre-amplifier and the main amplifier carry out amplification and quantitative sampling on the electric signal generated in the fourth step, and finally the quantized signal is uploaded to the detection device for analysis and processing. A defect detection result is obtained.
[23] In another embodiment, a filter is arranged between the main amplifier and the detection device, the main amplifier is connected with the filter, and the filter is connected with the detection device through an A/D converter. The filter sets center frequency according to square wave excitation signal frequency set by the signal transmitting system; the pre-amplifier and the main amplifier are both broadband amplifiers, and the frequency range is 100 kHZ to 1 MHZ; and the A/D converter adopts a quantization bit width of 16 bits and a sampling rate of 10 MS/s, and uploads the quantized signal to the detection device for analysis and processing.
[24] In another embodiment, the transducer is arranged around the outer side of the receiving coil. The ultrasonic signal received by the receiving coil is converted into the electric signal, and the conversion accuracy rate is high.
[25] In another embodiment, the detection device has a defect alarm function. When the detection device detects that defect damage exists in the circuit breaker spring, an alarm signal is transmitted to remind detection personnel.
[261 Because the surface of the energy storage spring of the circuit breaker in work can generate rust, paint leather and other substances which influence the surface smoothness of the steel wire of the energy storage spring, the magnetic-acoustic emission technology is adopted for detection, and the limitation that the surface of an object to be detected needs to be cleaned and polished in a traditional ultrasonic flaw detection method is overcome, so that the detection efficiency is greatly improved; when the damage state of the circuit breaker spring is detected, the magneto-acoustic emission technology is adopted for detection, so that whether defects exist in the energy storage spring or not, the position where the defects occur and the defect damage condition can be accurately judged; and meanwhile, after the detection device is installed, the circuit breaker does not need to quit operation during detection, detection equipment is used for detection during daily substation inspection, and the operation is easy and convenient.
[271 All embodiments in this specification are described in a progressive manner. Each embodiment focuses on differences from other embodiments. For the part that is the same or similar between different embodiments, reference may be made between the embodiments. The device disclosed in the embodiment corresponds to the method disclosed in the embodiment, and therefore the description is relatively brief. Related information refers to descriptions of the related parts in the method.
[281 The embodiments disclosed above are described to enable a technical person skilled in the art to implement or use the present disclosure. Various modifications to the embodiments are obvious to those skilled in the art, and general principles defined in this specification may be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure will not be limited to the embodiments described in this specification but extends to the widest scope that complies with the principles and novelty disclosed in this specification.
Claims (5)
1. A circuit breaker spring defect detection device based on a magneto-acoustic emission technology, comprising a circuit breaker spring, a signal emission system, an excitation coil, a receiving coil, a transducer and a detection device, wherein the excitation coil and the receiving coil are respectively wound at two ends of the circuit breaker spring, the signal emission system is connected with the excitation coil, the transducer is connected with the receiving coil, and the signal emission system is connected with the detection device; and the transducer is connected with the detection device through a pre-amplifier and a main amplifier in sequence.
2. The circuit breaker spring defect detection device based on a magneto-acoustic emission technology according to claim 1, wherein a filter is arranged between the main amplifier and the detection device, the main amplifier is connected with the filter, and the filter is connected with the detection device through an A/D converter.
3. The circuit breaker spring defect detection device based on a magneto-acoustic emission technology according to claim 1, wherein a shell is arranged on the outer side of the circuit breaker spring, a baffle is installed at the top end of the shell, and a rubidium magnet is installed in the baffle.
4. The circuit breaker spring defect detection device based on a magneto-acoustic emission technology according to claim 3, wherein the transducer is arranged around the outer side of the receiving coil.
5. The circuit breaker spring defect detection device based on a magneto-acoustic emission technology according to claim 1, wherein the detection device has a defect alarm function.
FIG. 1 －1/2－
DRAWINGS
FIG. 2 －2/2－
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2021104455A AU2021104455A4 (en) | 2021-07-22 | 2021-07-22 | Circuit breaker spring defect detection device based on magneto-acoustic emission technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2021104455A AU2021104455A4 (en) | 2021-07-22 | 2021-07-22 | Circuit breaker spring defect detection device based on magneto-acoustic emission technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AU2021104455A4 true AU2021104455A4 (en) | 2021-09-16 |
Family
ID=77666632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2021104455A Ceased AU2021104455A4 (en) | 2021-07-22 | 2021-07-22 | Circuit breaker spring defect detection device based on magneto-acoustic emission technology |
Country Status (1)
| Country | Link |
|---|---|
| AU (1) | AU2021104455A4 (en) |
-
2021
- 2021-07-22 AU AU2021104455A patent/AU2021104455A4/en not_active Ceased
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FGI | Letters patent sealed or granted (innovation patent) | ||
| MK22 | Patent ceased section 143a(d), or expired - non payment of renewal fee or expiry |