CN110208363A - A kind of bearing carrier fatigue detection device and method - Google Patents
A kind of bearing carrier fatigue detection device and method Download PDFInfo
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- CN110208363A CN110208363A CN201910531955.2A CN201910531955A CN110208363A CN 110208363 A CN110208363 A CN 110208363A CN 201910531955 A CN201910531955 A CN 201910531955A CN 110208363 A CN110208363 A CN 110208363A
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- 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
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- 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
- G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
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Abstract
The present invention provides a kind of bearing carrier fatigue detection devices, including excitation part, signal processing circuit and display terminal, the excitation division point includes that module occurs for pumping signal, the exiting coil component being mounted on bearing carrier, the Magnetic Sensor being mounted on bearing carrier, the output end that module occurs for the pumping signal is connect with the exiting coil component, the output end of the Magnetic Sensor is connect with the input terminal of the signal processing circuit, the output end of the signal processing circuit is connect with the display terminal, the signal processing circuit will test result and export to be shown to the display terminal.The present invention also provides a kind of bearing carrier fatigue detection methods.The beneficial effects of the present invention are: can realize the fatigue detecting of bearing carrier according to inductive signal power, without magnetic yoke, the size (volume) of excitation unit is greatly reduced, while smaller excitation density can be used, generate identical excitation effect.
Description
Technical field
The present invention relates to fatigue detecting more particularly to a kind of bearing carrier fatigue detection device and methods.
Background technique
Bearing carrier is widely used in the places such as various transporting equipments, traction mechanism, elevator as a kind of primary structure member.Greatly
The core component of part bearing carrier carrying weight is all made of the ferrimagnet of high magnetic conductivity, such as wirerope, coated steel
Band, rod piece etc..Ferrimagnet is under the action of alternating magnetic field, the signal of generation and microstructure, the stress state of material, outside
Add excitation and temperature etc. related.Bearing carrier in use, can bear different stress for a long time, and what is be subject to for a long time answers
Power can make bearing carrier microstructure change with residual stress, fatigue damage finally occur, and metal fatigue is to determine
Determine the key factor of bearing carrier service life.The signal strength or weakness that bearing carrier generates under action of alternating magnetic field can characterize
Therefore how its microstructure and fatigue damage situation realize the fatigue detecting of bearing carrier according to inductive signal power, are
Those skilled in the art's technical problem urgently to be resolved.
Summary of the invention
In order to solve the problems in the prior art, the present invention provides a kind of bearing carrier fatigue detection device and methods.
The present invention provides a kind of bearing carrier fatigue detection devices, including excitation part, signal processing circuit and display
Terminal, the excitation division point include that pumping signal occurs module, the exiting coil component being mounted on bearing carrier, is mounted on and holds
Magnetic Sensor in mount components, the output end that module occurs for the pumping signal are connect with the exiting coil component, the magnetic
The output end of sensor is connect with the input terminal of the signal processing circuit, and the output end of the signal processing circuit is shown with described
Show that terminal connects, module occurs for the pumping signal to the exiting coil component input exchange signal, for bearing carrier
Excitation, the inductive signal for the bearing carrier that the Magnetic Sensor will test are exported to the signal processing circuit, the signal
Processing circuit handles the inductive signal received to obtain testing result, and the signal processing circuit will test result output
It is shown to the display terminal.
As a further improvement of the present invention, the exiting coil component includes be wound on excitation on bearing carrier first
Excitation coil and the second excitation coil for being wound on excitation on bearing carrier, first excitation coil, the second excitation coil
Around to identical, the pumping signal occurs module and inputs identical friendship to first excitation coil, the second excitation coil respectively
Flow signal, the excitation for bearing carrier.
As a further improvement of the present invention, the Magnetic Sensor is arranged in first excitation coil, the second excitation line
Between circle.
As a further improvement of the present invention, the signal processing circuit includes amplifying circuit and filter circuit, the magnetic
The output end of sensor is connect with the input terminal of the amplifying circuit, the output end of the amplifying circuit and the filter circuit
Input terminal connection, the output end of the filter circuit are connect with the display terminal.
As a further improvement of the present invention, the bearing carrier fatigue detection device is not provided with magnetic yoke.
It is tired with the bearing carrier described in any one of above-mentioned the present invention also provides a kind of bearing carrier fatigue detection method
Based on labor detection device, follow the steps below:
S1, module is occurred by the pumping signal to the exiting coil component input exchange signal, for bearing carrier
Excitation；
S2, the inductive signal that bearing carrier generates is detected by Magnetic Sensor, and the inductive signal is exported at the signal
Manage circuit；
S3, single-point detection is carried out to bearing carrier, is handled by characteristic value of the signal processing circuit to inductive signal
Analysis；
S4, the characteristic value that will test out and bearing carrier fatigue life degree judgment basis compare, judge the carrying structure
The degree of fatigue situation of part, will test result and is output to display terminal and shown；
S5, entire bearing carrier is detected point by point, characteristic value is analyzed using signal processing circuit, judgement is entirely held
The tired weak spot position of mount components, will test result and exports to display terminal and shown.
The present invention also provides a kind of bearing carrier fatigue detection methods, to have the first excitation coil, the second excitation line
Based on the bearing carrier fatigue detection device of circle, follow the steps below:
S1, it is set according to the distance between actually detected needs, the first excitation coil of design, second excitation coil, and by emulation
The number of turns and pumping signal size of excitation coil are counted, is guaranteed bearing carrier detection position excitation is attached in (arriving) magnetic conductivity maximum value
Closely；Module occurs by the pumping signal and inputs identical exchange to first excitation coil, the second excitation coil respectively
Signal, the excitation for bearing carrier；
S2, the inductive signal that bearing carrier generates is detected by Magnetic Sensor, and the inductive signal is exported at the signal
Manage circuit；
S3, single-point detection is carried out to bearing carrier, is handled by characteristic value of the signal processing circuit to inductive signal
Analysis；
S4, the characteristic value that will test out and bearing carrier fatigue life degree judgment basis compare, judge the carrying structure
The degree of fatigue situation of part, will test result and is output to display terminal and shown；
S5, entire bearing carrier is detected point by point, characteristic value is analyzed using signal processing circuit, judgement is entirely held
The tired weak spot position of mount components, will test result and exports to display terminal and shown.
The beneficial effects of the present invention are: can realize the fatigue detecting of bearing carrier according to inductive signal power, it is not necessarily to
Using magnetic yoke, the size (volume) of excitation unit is greatly reduced, while smaller excitation density can be used, is generated identical
Excitation effect, test object includes the bearing carrier of ferrimagnet, and application range is wider.
Detailed description of the invention
Fig. 1 is a kind of schematic diagram of bearing carrier fatigue detection device detection wirerope of the present invention.
Fig. 2 is a kind of schematic diagram of bearing carrier fatigue detection device detection coated steel strip of the present invention.
Specific embodiment
The invention will be further described for explanation and specific embodiment with reference to the accompanying drawing.
As shown in Figure 1 to Figure 2, a kind of bearing carrier fatigue detection device, including excitation part 10, signal processing circuit 20
With display terminal 30, the excitation part 10 includes that module 14, the excitation coil being mounted on bearing carrier occur for pumping signal
Component, the Magnetic Sensor 13 being mounted on bearing carrier, the output end of the pumping signal generation module 14 and the excitation line
Coil assembly connection, the output end of the Magnetic Sensor 13 is connect with the input terminal of the signal processing circuit 20, at the signal
The output end of reason circuit 20 is connect with the display terminal 30, and module 10 occurs for the pumping signal to the exiting coil component
Input exchange signal, for the excitation of bearing carrier, the inductive signal for the bearing carrier that the Magnetic Sensor 13 will test is defeated
Out to the signal processing circuit 20, the signal processing circuit 20 handles the inductive signal received to obtain detection knot
Fruit, the signal processing circuit 20 will test result and export to be shown to the display terminal 30.
As shown in Figure 1 to Figure 2, the exiting coil component includes the first excitation coil for being wound on excitation on bearing carrier
11 and it is wound on the second excitation coil 12 of excitation on bearing carrier, first excitation coil 11, the second excitation coil 12
Around to identical, the pumping signal occurs module 10 and inputs phase to first excitation coil 11, the second excitation coil 12 respectively
Same AC signal, the excitation for bearing carrier.
As shown in Figure 1 to Figure 2, the Magnetic Sensor 14 is arranged in first excitation coil 11, the second excitation coil 12
Between.
As shown in Figure 1 to Figure 2, the signal processing circuit 20 includes amplifying circuit 21 and filter circuit 22, and the magnetic passes
The output end of sensor 13 is connect with the input terminal of the amplifying circuit 21, the output end of the amplifying circuit 21 and the filtered electrical
The input terminal on road 22 connects, and the output end of the filter circuit 22 is connect with the display terminal 30.
As shown in Figure 1 to Figure 2, the bearing carrier fatigue detection device is not provided with magnetic yoke.
As shown in Figure 1 to Figure 2, the AC sine or remaining that module 14 is used to generate certain amplitude and frequency occurs for pumping signal
String signal, AC signal can be ac voltage signal, be also possible to ac current signal.First excitation coil 11, second swashs
Coil 12 is encouraged around to consistent, the inside is passed through identical AC signal, the excitation for bearing carrier.First excitation coil 11,
Two excitation coils 12, which are directly wound on bearing carrier, carries out excitation, and between two coils distance away, which can be with
It is adjusted according to actually detected needs.The excitation coil of excitation part can also individually use an excitation coil, equally may be used
To achieve the purpose that fatigue detecting, only there is certain difference with double excitation coil in excitation effect.
As shown in Figure 1 to Figure 2, sensor uses Magnetic Sensor 14, it may include but it is not limited to induction coil, hall sensing
Device, magnetoresistive sensor, giant magneto-resistance sensor, tunnel magneto resistance sensor, fluxgate sensor etc..Magnetic Sensor 14 is placed in
Between one excitation coil 11, the second excitation coil 12, it is not limited to the center between the first excitation coil 11, the second excitation coil 12
Between position.If sensor use induction coil, multiple small coil arrays can be used, be arranged in entire bearing carrier circumferential direction,
For detecting the inductive signal of normal direction.Detection coil can also be wound on bearing carrier as excitation coil simultaneously, be used for
Detect axial inductive signal.Signal processing circuit 20 can include but is not limited to: amplifying circuit 21, filter circuit 22 etc..It is aobvious
Show that terminal 30 is mainly display screen, for showing bearing carrier fatigue damage degree.
As shown in Figure 1 to Figure 2, excitation is carried out to bearing carrier using two excitation coils, between two magnet exciting coils
Distance can flexibly change according to actually detected demand；Two excitation coils are directly wound on component uplink excitation, entire excitation
System does not need to carry out magnetic conduction using magnetic yoke, significantly reduces the weight of entire detection system, reduces the size (body of device
Product)；For two excitation coils around to consistent, the AC signal being passed through is also consistent, it is ensured that the consistency of two coil signals, with
And the consistency of excitation system phase of ac signal, make system when being passed through the same AC signal, excitation effect is best；Magnetic passes
Sensor 14 is installed between two excitation coils, it is not required that one is positioned at two magnet exciting coil middle positions, and does not have magnetic
The space of yoke limits, and installation site and mounting means are all more flexible.If using induction coil sensor to induced voltage (letter
Number) detected, then induction coil can be wound on ferrite skeleton, be placed in the circumferential direction of bearing carrier, for detecting
Normal direction inductive signal can also be directly wound on bearing carrier, for detecting axial inductive signal；If being motivated only with one
The installation site of coil, sensor will not be limited by position between two excitation coils, and selection will be more flexible；To Magnetic Sensor
14 output signal is sampled, and extracts analysis, characteristic value master to inductive signal characteristic value using signal processing circuit 20
To include detection signal centre-height is poor, root mean square, average value, ring number, spectrum signature etc..According to signal characteristic value with hold
The relationship of mount components degree of fatigue can detect the fatigue conditions of bearing carrier and the weak link of entire bearing carrier.
A kind of bearing carrier fatigue detection method, comprising the following steps:
Step1: according to actually detected needs, designing the distance between two the first excitation coils 11, second excitation coil 12, and
By the number of turns and pumping signal size of design of Simulation the first excitation coil 11, the second excitation coil 12, guarantee bearing carrier
Position excitation is detected near (arriving) magnetic conductivity maximum value；
Step2: it is passed through identical AC signal in the first excitation coil 11, the second excitation coil 12 and carries out excitation, utilizes magnetic
Sensor 14 detects the inductive signal that bearing carrier generates；
Step3: to bearing carrier carry out single-point detection, and using 20 pairs of signal processing circuit detect signal characteristic value at
Reason analysis, characteristic value includes the poor centre-height of inductive signal, root mean square, average value, ring number, and spectrum signature etc. herein may be used
Only to select one of characteristic value to be analyzed, multiple parameters Conjoint Analysis can also be used；
Step4: the judgment basis of the characteristic value that will test out and bearing carrier fatigue life degree compares, and judges the component
Degree of fatigue situation, will test result and be output to display terminal 30；
Step5: detecting entire bearing carrier point by point, and is carried out using 20 pairs of detection signal characteristic values of signal processing circuit
Analysis, judges the tired weak spot position of entire component, will test result and export to display terminal 30.
A kind of application example of the invention is wirerope, and as shown in Fig. 1, wirerope is one kind as made of steel wire twisting
Helical form bearing carrier, when being detected using fatigue and weak link of the present invention to wirerope, it is only necessary to according to wirerope
Shape and size coiling magnet exciting coil, select suitable sensor.
Another application example of the invention is coated steel strip, and more wirerope are encapsulated in polymer insulation side by side in parallel
Coated steel strip in rubber, the core for carrying weight is internal wirerope side by side.As shown in Fig. 2, if to coated steel strip into
When row fatigue and weak link detection, the shape and size coiling magnet exciting coil according to steel band are also only needed, selects suitable inspection
Survey sensor.
A kind of bearing carrier fatigue detection device provided by the invention and method, have the advantage that
1: the excitation unit of use only uses two excitation coils, without magnetic yoke, greatly reduces the size of excitation unit
(volume), while smaller excitation density can be used, generate identical excitation effect.
2: excitation coil is directly wound on bearing carrier, can carry out excitation to entire component detection part, relative to
Traditional excitation unit, excitation area is wider, and more evenly, excitation effect is more preferable for excitation.
3: compared with the exchange Magnetic Flux Leakage Testing System in one's early years, which is not needed bearing carrier excitation to saturation shape
State.
4: excitation coil and detection coil the number of turns are few, in certain occasions for being not easy to remove bearing carrier, coiling
It is simple and convenient.
5: in the occasion of coiling inconvenience, coiling installation can be carried out in the form of winding displacement.
6: using two coil magnetization systems, the installation site and mounting means of sensor are flexible, select type also richer
It is rich.
7: excitation unit can also be only with a magnet exciting coil, and the installation site and mounting means of sensor are more flexible.
8: can be achieved bearing carrier degree of fatigue detection, for bearing carrier life prediction and (maintenance) replace provide according to
According to.
9: can realize that the weak link of entire component is detected to the detection of bearing carrier somewhere fatigue conditions.
9: bearing carrier somewhere fatigue conditions can be detected, realize the detection of the weak link of entire component.10: inspection
Survey object and be not only confined to wirerope, on this kind of bearing carrier of steel band, for it is common grown up by ferrimagnet it is new
Bearing carrier, it is only necessary to corresponding change is made according to excitation coil of the shape of bearing carrier to excitation system, can benefit
Fatigue detecting is carried out with the detection system.
A kind of bearing carrier fatigue detection device provided by the invention and method can be applied to bearing carrier fatigue detecting neck
Domain can also realize that entire bearing carrier is thin, it can be achieved that the detection that bearing carrier residual stress situation and microstructure change
The detection of weak link.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that
Specific implementation of the invention is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs, exist
Under the premise of not departing from present inventive concept, a number of simple deductions or replacements can also be made, all shall be regarded as belonging to of the invention
Protection scope.
Claims (7)
1. a kind of bearing carrier fatigue detection device, it is characterised in that: eventually including excitation part, signal processing circuit and display
End, the excitation division point include that pumping signal occurs module, the exiting coil component being mounted on bearing carrier, is mounted on carrying
Magnetic Sensor on component, the output end that module occurs for the pumping signal are connect with the exiting coil component, and the magnetic passes
The output end of sensor is connect with the input terminal of the signal processing circuit, the output end of the signal processing circuit and the display
Module occurs for terminal connection, the pumping signal to the exiting coil component input exchange signal, for encouraging for bearing carrier
Magnetic, the inductive signal for the bearing carrier that the Magnetic Sensor will test are exported to the signal processing circuit, at the signal
Reason circuit is handled to obtain testing result to the inductive signal received, the signal processing circuit will test result export to
The display terminal is shown.
2. bearing carrier fatigue detection device according to claim 1, it is characterised in that: the exiting coil component includes
It is wound on the first excitation coil of excitation on bearing carrier and is wound on the second excitation coil of excitation on bearing carrier, described the
One excitation coil, the second excitation coil around to identical, the pumping signal occur module respectively to first excitation coil,
Second excitation coil inputs identical AC signal, the excitation for bearing carrier.
3. bearing carrier fatigue detection device according to claim 2, it is characterised in that: the Magnetic Sensor is arranged in institute
It states between the first excitation coil, the second excitation coil.
4. bearing carrier fatigue detection device according to claim 1, it is characterised in that: the signal processing circuit includes
Amplifying circuit and filter circuit, the output end of the Magnetic Sensor are connect with the input terminal of the amplifying circuit, the amplification electricity
The output end on road is connect with the input terminal of the filter circuit, and the output end of the filter circuit is connect with the display terminal.
5. bearing carrier fatigue detection device according to claim 1, it is characterised in that: the bearing carrier fatigue detecting
Device is not provided with magnetic yoke.
6. a kind of bearing carrier fatigue detection method, which is characterized in that with carrying structure described in any one of claims 1 to 5
Based on part fatigue detection device, follow the steps below:
S1, module is occurred by the pumping signal to the exiting coil component input exchange signal, for bearing carrier
Excitation；
S2, the inductive signal that bearing carrier generates is detected by Magnetic Sensor, and the inductive signal is exported at the signal
Manage circuit；
S3, single-point detection is carried out to bearing carrier, is handled by characteristic value of the signal processing circuit to inductive signal
Analysis；
S4, it will test signal and the judgment basis of bearing carrier fatigue life degree compares, judge the tired of the bearing carrier
Labor degree situation, will test result and is output to display terminal and shown；
S5, entire bearing carrier is detected point by point, characteristic value is analyzed using signal processing circuit, judgement is entirely held
The tired weak spot position of mount components, will test result and exports to display terminal and shown.
7. a kind of bearing carrier fatigue detection method, which is characterized in that with bearing carrier fatigue detecting as claimed in claim 2 dress
It is set to basis, is followed the steps below:
S1, it is set according to the distance between actually detected needs, the first excitation coil of design, second excitation coil, and by emulation
The number of turns and pumping signal size of excitation coil are counted, guarantees to detect bearing carrier near position excitation to magnetic conductivity maximum value；
Module occurs by the pumping signal and inputs identical exchange letter to first excitation coil, the second excitation coil respectively
Number, the excitation for bearing carrier；
S2, the inductive signal that bearing carrier generates is detected by Magnetic Sensor, and the inductive signal is exported at the signal
Manage circuit；
S3, single-point detection is carried out to bearing carrier, is handled by characteristic value of the signal processing circuit to inductive signal
Analysis；
S4, the characteristic value that will test out and bearing carrier fatigue life degree judgment basis compare, judge the carrying structure
The degree of fatigue situation of part, will test result and is output to display terminal and shown；
S5, entire bearing carrier is detected point by point, detection signal is analyzed using signal processing circuit, judgement is entire
The tired weak spot position of bearing carrier, will test result and exports to display terminal and shown.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910531955.2A CN110208363A (en) | 2019-06-19 | 2019-06-19 | A kind of bearing carrier fatigue detection device and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910531955.2A CN110208363A (en) | 2019-06-19 | 2019-06-19 | A kind of bearing carrier fatigue detection device and method |
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| CN110208363A true CN110208363A (en) | 2019-09-06 |
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| CN201910531955.2A Pending CN110208363A (en) | 2019-06-19 | 2019-06-19 | A kind of bearing carrier fatigue detection device and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111336410A (en) * | 2020-04-20 | 2020-06-26 | 西南石油大学 | Real-time online detection device and method for erosion of magnetic conduction pipe column |
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| WO2007116218A1 (en) * | 2006-04-11 | 2007-10-18 | Sensor Technology Limited | Measuring physical quantities |
| CN205861255U (en) * | 2016-08-09 | 2017-01-04 | 哈尔滨理工大学 | Ferromagnetic material stress based on barkhausen detection device |
| CN106442707A (en) * | 2016-12-14 | 2017-02-22 | 中国计量大学 | Metal pipeline defect detecting device based on low-frequency electromagnetism |
| CN109060938A (en) * | 2018-04-23 | 2018-12-21 | 山西科为感控技术有限公司 | Wirerope magnetic flux defects detection sensor |
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2019
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|---|---|---|---|---|
| JPH0517580U (en) * | 1991-08-21 | 1993-03-05 | 住友金属工業株式会社 | Iron loss measuring device |
| WO2007116218A1 (en) * | 2006-04-11 | 2007-10-18 | Sensor Technology Limited | Measuring physical quantities |
| CN205861255U (en) * | 2016-08-09 | 2017-01-04 | 哈尔滨理工大学 | Ferromagnetic material stress based on barkhausen detection device |
| CN106442707A (en) * | 2016-12-14 | 2017-02-22 | 中国计量大学 | Metal pipeline defect detecting device based on low-frequency electromagnetism |
| CN109060938A (en) * | 2018-04-23 | 2018-12-21 | 山西科为感控技术有限公司 | Wirerope magnetic flux defects detection sensor |
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| CN111336410A (en) * | 2020-04-20 | 2020-06-26 | 西南石油大学 | Real-time online detection device and method for erosion of magnetic conduction pipe column |
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Application publication date: 20190906 |