CN109283244A - A kind of wirerope non-destructive detection device based on TMR Magnetic Sensor - Google Patents
A kind of wirerope non-destructive detection device based on TMR Magnetic Sensor Download PDFInfo
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- CN109283244A CN109283244A CN201810859883.XA CN201810859883A CN109283244A CN 109283244 A CN109283244 A CN 109283244A CN 201810859883 A CN201810859883 A CN 201810859883A CN 109283244 A CN109283244 A CN 109283244A
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- 238000001514 detection method Methods 0.000 title claims abstract description 28
- 230000001066 destructive effect Effects 0.000 title claims abstract description 17
- 238000005096 rolling process Methods 0.000 claims abstract description 17
- 230000004907 flux Effects 0.000 claims abstract description 16
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 9
- 230000006378 damage Effects 0.000 claims abstract description 9
- 239000010959 steel Substances 0.000 claims abstract description 9
- 230000005415 magnetization Effects 0.000 claims abstract description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 8
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 229910001209 Low-carbon steel Inorganic materials 0.000 claims description 4
- 239000000696 magnetic material Substances 0.000 claims description 3
- 229910001172 neodymium magnet Inorganic materials 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 8
- 238000004458 analytical method Methods 0.000 abstract description 4
- 238000007689 inspection Methods 0.000 abstract description 2
- 230000007547 defect Effects 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 238000009510 drug design Methods 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 210000001367 artery Anatomy 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 210000003462 vein Anatomy 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
Classifications
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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
- G01N27/83—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws by investigating stray magnetic fields
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
The present invention relates to a kind of wirerope non-destructive detection devices based on TMR Magnetic Sensor, belong to nondestructive inspection field.Including a pair of of armature, two pairs of permanent magnets, at least a pair of TMR Magnetic Sensor, the axis of rolling, to be measured section of wirerope and a pair of of encoder.TMR Magnetic Sensor places the two sides of to be measured section of wirerope and is located at the lower section of a pair of of armature, at symmetrical structure, its direction of magnetization is all perpendicular to be measured section of wirerope, two pairs of permanent magnets are placed on the two sides of to be measured section of wirerope and are connected with the both sides of a pair of of armature, it is placed in the mode that the direction of magnetization is opposite at symmetric mode, to be measured section of wirerope is placed among two TMR Magnetic Sensors and is wound on the axis of rolling, TMR Magnetic Sensor judges damage of steel cable degree according to the signal of magnetic flux leakage for detecting magnetic flux leakage caused by be measured section of wirerope.For a pair of of encoder on the left of two pairs of permanent magnets, the present apparatus can accurately show damage of steel cable position while improving Analysis of Magnetic Flux Leakage Testing Signals intensity, have good practicability and generalization.
Description
Technical field
The present invention relates to a kind of wirerope non-destructive detection devices based on TMR Magnetic Sensor, belong to nondestructive inspection field.
Background technique
Wirerope is widely used for a kind of component of coal mine lifting machine and various traffic systems, and wirerope is widely used in
Elevator, hoisting machinery, passenger aerial ropeway and other related fieldss.Fretting wear and fatigue or the individual wire of fracture have become
The dominant failure mode of boom hoist cable.Fretting wear and fatigue or fracture have become the dominant failure mode of boom hoist cable,
The degree of injury of wirerope and the safety of bearing capacity and related personnel and equipment are closely related.
The use scope of wirerope is relatively broad, and used environment is also varied, so the service condition of wirerope
Just very complicated, wirerope causes the diversity of the defect type of wirerope due to the difference of canoe and material.Mesh
Before, the wire rope standard instrument detection accuracy just used is low, and intelligence degree is not high, and real time and dynamic can poor, detection effect
Generally.With the development of communications and transportation, industry and mining and civil engineering, wirerope using more and more extensive, what wirerope used
Safety and economy are especially prominent.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of wirerope non-destructive detection device based on TMR Magnetic Sensor,
Its testing principle is Magnetic Flux Leakage Inspecting, is detected based on this to the defect of wirerope with principle.By to magnetizing exciter knot
The rational design of structure, correct selection, reasonable arrangement sensor space layout, design reduce magnetism-collected structure, reduce interference magnetic field, can
It realizes to have and enables wirerope equably magnetized function, can accurately show steel while improving Analysis of Magnetic Flux Leakage Testing Signals intensity
Cord damage position has good practicability and generalization.
The technical solution adopted by the present invention is that: a kind of wirerope non-destructive detection device based on TMR Magnetic Sensor, including one
To 1, two pair of permanent magnet 2 of armature, to be measured section of wirerope 3, the axis of rolling 4, at least a pair of TMR Magnetic Sensor 5 and a pair of of encoder 6,
The TMR Magnetic Sensor 5 places the two sides of to be measured section of wirerope 3 and is located at the lower section of a pair of of armature 1, at symmetrical structure,
Its direction of magnetization all perpendicular to be measured section of wirerope 3, two pairs of permanent magnets 2 be placed on the two sides of to be measured section of wirerope 3 and
It is connected with the both sides of a pair of of armature 1, is placed in the mode that the direction of magnetization is opposite at symmetric mode, the to be measured section of wirerope
3 are placed among two TMR Magnetic Sensor 5 and are wound on the axis of rolling 4, and the TMR Magnetic Sensor 5 is for detecting to be measured section of steel wire
Magnetic flux leakage caused by rope 3, and damage of steel cable degree is judged according to the signal of magnetic flux leakage, a pair of of encoder 6 is distinguished
Mounted in two pairs of 2 left sides of permanent magnet, guarantee that be measured section of wirerope 3 fully magnetises, two pairs of permanent magnets 2 use soft magnetic materials system
At.
Preferably, two pairs of permanent magnets 2 are made of NdFeB rear-earth material.
Preferably, the 1 material selection mild steel of armature or ingot iron.
Preferably, 5 product type of TMR Magnetic Sensor is TMR2905 Magnetic Sensor, signal-to-noise ratio 50dB, defeated
Out temperature coefficient be -1% DEG C -1, zero point imbalance output be ± 3mVV-1, zero point output coefficient be ± 3 μ VV-1·℃-1、
Magnetic field dynamic range is 1~100kAm-1。
Preferably, each TMR Magnetic Sensor 5 is placed on to be measured section of 3 central axis of wirerope into 90 degree of direction.
Preferably, the quantity N for the TMR Magnetic Sensor 5 being distributed in 4 one perimeter of the axis of rolling meets:
Nmin≥πd/L
In formula: the diameter of the d- axis of rolling 4；
The detection length of each TMR sensor 5 of L-.
Preferably, the encoder 6 is incremental optical-electricity encoder.
The beneficial effects of the present invention are:
(1) present invention passes through the rational design to magnetizing exciter structure, correct selection, 5 space of reasonable arrangement TMR Magnetic Sensor
Layout, design reduce magnetism-collected structure, can reduce interference magnetic field, and realization, which has, enables to be measured section of wirerope 3 equably magnetized function,
Analysis of Magnetic Flux Leakage Testing Signals intensity is improved, we can detecte deeper defect in rope in this way.
(2) compared with prior art, when detecting to end wirerope 3 to be measured, pass through two pairs of increments of setting
Formula photoelectric encoder 6 can distinguish direction of rotation, while the accurate location that positioning wire rope is impaired.Greatly reduce testing staff's
Workload.
Detailed description of the invention
Fig. 1 is a kind of structure chart of the wirerope non-destructive detection device based on TMR Magnetic Sensor of the present invention；
Fig. 2 is a kind of operation schematic diagram of the wirerope non-destructive detection device based on TMR Magnetic Sensor of the present invention；
Fig. 3 is the arrangement figure of TMR Magnetic Sensor of the present invention；
Fig. 4 is incremental optical-electricity encoder working principle diagram of the present invention.
Each label in figure are as follows: armature -1, to be measured section of wirerope -3, the axis of rolling -4, passes TMR magnetic sensing at permanent magnet -2
Device -5, encoder -6, magnetic induction line -7.
Specific embodiment
The present invention will be further described in the following with reference to the drawings and specific embodiments.
Embodiment 1: a kind of wirerope non-destructive detection device based on TMR Magnetic Sensor as shown in Figs 1-4, including a pair of of rank
1, two pair of permanent magnet 2 of iron, to be measured section of wirerope 3, the axis of rolling 4, at least a pair of TMR Magnetic Sensor 5 and a pair of of encoder 6, it is described
TMR Magnetic Sensor 5 place the two sides of to be measured section of wirerope 3 and be located at the lower section of a pair of of armature 1, at symmetrical structure, magnetic
Change direction all perpendicular to be measured section of wirerope 3, two pairs of permanent magnets 2 are placed on the two sides and and one of to be measured section of wirerope 3
It is connected to the both sides of armature 1, is placed in the mode that the direction of magnetization is opposite at symmetric mode, the to be measured section of wirerope 3 is put
It sets among two TMR Magnetic Sensor 5 and is wound on the axis of rolling 4, the TMR Magnetic Sensor 5 is for detecting to be measured section of wirerope 3
Generated magnetic flux leakage, and damage of steel cable degree is judged according to the signal of magnetic flux leakage, a pair of of encoder 6 is attached separately to
Two pairs of 2 left sides of permanent magnet guarantee that be measured section of wirerope 3 fully magnetises to reduce the interference to magnetic leakage signal, described two pairs
Permanent magnet 2 is the very high soft magnetic materials of magnetic conductivity, it is uniformly magnetized can not only to enable to be measured section of wirerope 3, while can also mention
The high intensity of detected signal, preferably progress Magnetic Flux Leakage Inspecting.
Further, two pairs of permanent magnets 2 are made of NdFeB rear-earth material, compared to permanent magnetism generally
The mechanical performance of body, the material is higher, more easily processes and manufactures in terms of machine-building.
Further, the 1 material selection mild steel of armature or ingot iron, armature is in excitation unit (including one
To 1, two pair of permanent magnet 2 of armature, the axis of rolling 4, at least a pair of TMR Magnetic Sensor 5) in role be guidance magnetic field, select
The departure degree that mild steel or ingot iron can reduce magnetic field improves the accuracy of testing result.
Further, 5 product type of TMR Magnetic Sensor be TMR2905 Magnetic Sensor, signal-to-noise ratio 50dB,
Output temperature coefficient be -1% DEG C -1, zero point imbalance output be ± 3mVV-1, zero point output coefficient be ± 3 μ VV-1·
℃-1, magnetic field dynamic range be 1~100kAm-1, suitable for conventional metal material leakage field field detecting.
Further, in order to comprehensive detection wirerope, according to the sensitive induction direction of TMR Magnetic Sensor 5, institute
The each TMR Magnetic Sensor 5 stated is placed on to be measured section of 3 central axis of wirerope into 90 degree of direction.
Further, since the detection range of each TMR Magnetic Sensor 5 is limited, single TMR Magnetic Sensor 5 can not be examined
Whole magnetic leakage signals is surveyed, the Magnetic Flux Leakage Inspecting of to be measured section of wirerope 3 is circumferential detection, so to install multiple TMR Magnetic Sensors 5
It is detected, and is uniformly mounted on the circumferential direction of wirerope, increase the signal-to-noise ratio of magnetic leakage signal with this, promote detection accuracy.
It however is not that the more TMR Magnetic Sensor 5 of installation is better.The increase of the number of TMR Magnetic Sensor 5 will lead to magnetic leakage signal and adopt
The number of sample increases, and increases the working strength of detection.Therefore, the number of TMR Magnetic Sensor 5, which meets to detect as far as possible, obtains steel wire
The quantity N of all defect and damage on rope, the interior TMR Magnetic Sensor 5 being distributed of 4 one perimeter of the axis of rolling meets:
Nmin≥πd/L
In formula: the diameter of the d- axis of rolling 4；
The detection length of each TMR sensor 5 of L-.
Further, the encoder 6 is increment photoelectric, as phase occurs for be measured section of wirerope 3 and excitation module
When to displacement, relative displacement can also occur for encoder 6, then will form continuous pulse signal in encoder 6, then will
Pulse signal is converted into distance, positioning wire rope damaged location.
In conjunction with shown in attached drawing 3, the position and gap that multiple TMR Magnetic Sensors 5 are installed meet Nmin >=π d/L
In formula: the diameter of the d- axis of rolling 4；The detection length of each TMR sensor of L-.Each TMR Magnetic Sensor 5 is regular
Arrangement, the spacing of each TMR Magnetic Sensor 5 should be consistent, and be placed on the circumferential position of to be measured section of wirerope 3.
In conjunction with shown in attached drawing 4, the groundwork element of incremental optical-electricity encoder is light source, code-disc, light-sensitive element, amplification
Shaping, pulse output.Light source is generally incandescent lamp or light emitting diode, and code-disc is the core component of encoder, usually by saturating
The fan-shaped network in area pellucida and opaque region composition.The clear area of code-disc is equivalent to coding 1, and opaque region is equivalent to coding 0.
The working principle of encoder 6 is: the light that light source issues when code-disc starts turning penetrates the clear area of code-disc
And opaque region, light and shade variation will be generated, light-sensitive element receives light and dark variation, amplifies to obtain arteries and veins using shaping
Number is rushed, umber of pulse corresponds to the variable quantity of displacement.Displacement is converted to corresponding electric signal, then converts electrical signals into arteries and veins
Number is rushed, number of pulses carries out stored count to indicate the size of displacement.It is to be noted that incremental optical-electricity encoder needs
Zero-bit is defined, can just there is a reference point in this way.By two pairs of incremental optical-electricity encoders 6 of setting, direction of rotation can be distinguished,
The impaired accurate location of positioning wire rope simultaneously.
The technical problem to be solved by the present invention is to design a kind of wirerope non-destructive detection device based on TMR Magnetic Sensor,
Its testing principle is Magnetic Flux Leakage Inspecting.The defect of wirerope is detected with principle based on this.By to magnetizing exciter knot
The rational design of structure, correct selection, reasonable arrangement sensor space layout, design reduce magnetism-collected structure, reduce interference magnetic field, can
It realizes to have and enables wirerope equably magnetized function, can accurately show steel while improving Analysis of Magnetic Flux Leakage Testing Signals intensity
Cord damage position has good practicability and generalization.
Above embodiments only illustrate technical solution of the present invention, rather than its limitations；Although with reference to the foregoing embodiments to this
Invention is described in detail, those skilled in the art should understand that: it still can be to foregoing embodiments institute
The technical solution of record is modified or equivalent replacement of some of the technical features；And these are modified or replaceed,
The spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (7)
1. a kind of wirerope non-destructive detection device based on TMR Magnetic Sensor, it is characterised in that: including a pair of of armature (1), two pairs
Permanent magnet (2), to be measured section of wirerope (3), the axis of rolling (4), at least a pair of TMR Magnetic Sensor (5) and a pair of of encoder (6), institute
The TMR Magnetic Sensor (5) stated places the two sides of to be measured section of wirerope (3) and is located at the lower section of a pair of of armature (1), at symmetrical structure
, for the direction of magnetization all perpendicular to be measured section of wirerope (3), two pairs of permanent magnets (2) are placed on to be measured section of wirerope (3)
Two sides and be connected with the both sides of a pair of of armature (1), placed in the mode that the direction of magnetization is opposite at symmetric mode, it is described to
Section wirerope (3) are surveyed to be placed among two TMR Magnetic Sensors (5) and be wound on the axis of rolling (4), the TMR Magnetic Sensor (5)
Damage of steel cable degree, institute are judged for detecting magnetic flux leakage caused by be measured section of wirerope (3), and according to the signal of magnetic flux leakage
A pair of of the encoder (6) stated is attached separately on the left of two pairs of permanent magnets (2), guarantees that be measured section of wirerope (3) fully magnetises, described
Two pairs of permanent magnets (2) are made of soft magnetic materials.
2. a kind of wirerope non-destructive detection device based on TMR Magnetic Sensor according to claim 1, it is characterised in that:
Two pairs of permanent magnets (2) are made of NdFeB rear-earth material.
3. a kind of wirerope non-destructive detection device based on TMR Magnetic Sensor according to claim 1, it is characterised in that:
Armature (1) the material selection mild steel or ingot iron.
4. a kind of wirerope non-destructive detection device based on TMR Magnetic Sensor according to claim 1, it is characterised in that:
TMR Magnetic Sensor (5) product type be TMR2905 Magnetic Sensor, signal-to-noise ratio 50dB, output temperature coefficient be-
1% DEG C-1, zero point imbalance output be ± 3mVV-1, zero point output coefficient be ± 3 μ VV-1·℃-1, magnetic field dynamic range
For 1~100kAm-1。
5. a kind of wirerope non-destructive detection device based on TMR Magnetic Sensor according to claim 1, it is characterised in that:
Each TMR Magnetic Sensor (5) is placed on to be measured section of wirerope (3) central axis into 90 degree of direction.
6. a kind of wirerope non-destructive detection device based on TMR Magnetic Sensor according to claim 1, it is characterised in that:
The quantity N for the TMR Magnetic Sensor (5) being distributed in (4) one perimeter of the axis of rolling meets:
Nmin≥πd/L
In formula: the diameter of the d- axis of rolling (4)；
The detection length of each TMR sensor of L-(5).
7. a kind of wirerope non-destructive detection device based on TMR Magnetic Sensor according to claim 1, it is characterised in that:
The encoder (6) is incremental optical-electricity encoder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810859883.XA CN109283244A (en) | 2018-08-01 | 2018-08-01 | A kind of wirerope non-destructive detection device based on TMR Magnetic Sensor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810859883.XA CN109283244A (en) | 2018-08-01 | 2018-08-01 | A kind of wirerope non-destructive detection device based on TMR Magnetic Sensor |
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| CN109283244A true CN109283244A (en) | 2019-01-29 |
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| CN201810859883.XA Pending CN109283244A (en) | 2018-08-01 | 2018-08-01 | A kind of wirerope non-destructive detection device based on TMR Magnetic Sensor |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111141817A (en) * | 2019-12-25 | 2020-05-12 | 兰州空间技术物理研究所 | Stranded wave noise elimination device for nondestructive testing of steel wire rope |
| CN112415083A (en) * | 2020-12-03 | 2021-02-26 | 河北工业大学 | Steel wire rope defect rapid detection device under narrow working condition |
| CN113484408A (en) * | 2021-07-06 | 2021-10-08 | 兰州空间技术物理研究所 | Nondestructive testing device for steel wire rope |
| CN113567540A (en) * | 2021-07-27 | 2021-10-29 | 安徽省国盛量子科技有限公司 | Steel wire rope nondestructive testing equipment, system and method |
| CN114321606A (en) * | 2021-12-30 | 2022-04-12 | 创维光电科技(深圳)有限公司 | Display screen assembly |
| CN114713745A (en) * | 2022-06-08 | 2022-07-08 | 中荣精密金属制品(南通)有限公司 | Spring processing is with sending traditional thread binding putting |
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| CN114713745A (en) * | 2022-06-08 | 2022-07-08 | 中荣精密金属制品(南通)有限公司 | Spring processing is with sending traditional thread binding putting |
| CN114713745B (en) * | 2022-06-08 | 2022-09-02 | 中荣精密金属制品(南通)有限公司 | Spring processing is with sending traditional thread binding putting |
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