CN108828056A - The detection device of wirerope - Google Patents
The detection device of wirerope Download PDFInfo
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- CN108828056A CN108828056A CN201810646150.8A CN201810646150A CN108828056A CN 108828056 A CN108828056 A CN 108828056A CN 201810646150 A CN201810646150 A CN 201810646150A CN 108828056 A CN108828056 A CN 108828056A
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- permanent magnet
- annular permanent
- magnetization device
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- pole
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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
Abstract
The embodiment of the invention discloses a kind of testing device for wire ropes, which includes：Circumferential magnetization device；First diametrical magnetization device of the first side of circumferential magnetization device is set, and the second diametrical magnetization device of second side opposite with the first side of circumferential magnetization device is set；Conducting magnetic component is arranged between the first diametrical magnetization device and the second diametrical magnetization device, and the internal diameter of conducting magnetic component is greater than or equal to the outer diameter of circumferential magnetization device；Every magnetic component, it is arranged between conducting magnetic component and circumferential magnetization device.Technical solution provided in an embodiment of the present invention, Circumferential field is provided with around wirerope to be measured and wraps up the radial magnetic field and axial magnetic field of Circumferential field, the spatial magnetic field situation of change caused by the spacial multi-angle and comprehensive reflection wirerope internal injury, it is damaged according to the change detection of spatial magnetic field, improves the reliability of detection.
Description
Technical field
The present embodiments relate to Nondestructive Testing for Wire Ropes field more particularly to a kind of detection devices of wirerope.
Background technique
Wirerope because have tensile strength it is high, from heavy and light, elasticity is good, stable working is reliable, bears dynamic load and overload energy
Many advantages, such as power is strong, in the developments of the national economy many departments such as China's coal-mine, non-coal mine, harbour, bridge, cableway, elevator
It is widely applied.However, wirerope as a kind of engineering load bearing equipment, is often subject to flexural fatigue, abrasion, alternation in operational process
The influence of the complex working conditions such as load, mechanical shock and corrosion and environment, inevitably will appear such as fracture of wire, abrasion, deformation,
Phenomena such as corrosion and there are security risks.Its degree of impairment and bearing capacity are directly related to personnel and production safety.
Therefore, to ensure safe wire cable reliability service, domestic and international experts and scholars are exploring always wirerope non-destructive testing
Method.Wherein, electromagnetic detection method is currently generally acknowledged one of most practical detection method, but it is comprehensive smaller vertical in wirerope
To damage (such as fracture of wire 1-2 root, fracture spacing is no more than 3mm and inside the wirerope etc.) detection reliability in terms of there is also one
Fixed deficiency.
Summary of the invention
In view of this, the embodiment of the invention provides a kind of detection device of wirerope, from spacial multi-angle and comprehensive
Reflect spatial magnetic field situation of change caused by wirerope internal injury, is damaged according to the change detection of spatial magnetic field
Wound, improves the reliability of detection.
The embodiment of the invention provides a kind of testing device for wire ropes, including：
Circumferential magnetization device；
First diametrical magnetization device of first side of circumferential magnetization device is set, and setting with the circumferential magnetization device
The second diametrical magnetization device of the opposite second side in the first side；
Conducting magnetic component is arranged between the first diametrical magnetization device and the second diametrical magnetization device, the magnetic conduction structure
The internal diameter of part is greater than or equal to the outer diameter of the circumferential magnetization device；
Every magnetic component, it is arranged between the conducting magnetic component and the circumferential magnetization device.
Optionally, the first diametrical magnetization device includes first annular permanent magnet, the outside of the first annular permanent magnet
It is on the inside of the pole N is the pole S or outside be on the inside of the pole S is the pole N；
The second diametrical magnetization device includes the second annular permanent magnet, is S extremely interior on the outside of second annular permanent magnet
Side is the pole N or outside be on the inside of the pole N is the pole S.
Optionally, the circumferential magnetization device includes third annular permanent magnet, and the third annular permanent magnet includes multiple fans
Shape permanent magnet.
Optionally, the conducting magnetic component includes armature, and armature setting is in the first annular permanent magnet and described the
Between second ring permanent magnet.
It optionally, further include multiple magnetic signal detecting elements；
Annulus detection support, the annulus detection support are used to support the detecting element, the magnetic signal detecting element
It is evenly distributed in the annulus detection support；
The outer surface of the annulus detection support is in contact with the inner surface of the third annular permanent magnet.
Optionally, the range of the internal diameter of the annulus detection support is to be less than or equal to 55 millis more than or equal to 55 millimeters
Rice.
Optionally, further include signal transmission component, be arranged inside the armature, the signal of the signal transmission component is defeated
Enter end to be electrically connected with the signal output end of the detecting element；
The signal output end of the signal transmission component is electrically connected with the signal input part of controller.
Optionally, the internal diameter of the first annular permanent magnet is greater than the outer diameter of the third annular permanent magnet；
The internal diameter of second annular permanent magnet is greater than the outer diameter of the third annular permanent magnet.
Optionally, the internal diameter of the internal diameter of the first annular permanent magnet and second annular permanent magnet is equal；
The outer diameter of the outer diameter of the first annular permanent magnet and second annular permanent magnet is equal.
Optionally, the distance between the first annular permanent magnet and the third annular permanent magnet and second annular
Permanent magnet is equal with the distance between the third annular permanent magnet.
The embodiment of the invention provides a kind of detection devices of wirerope, and Circumferential field is provided with around wirerope to be measured
And the radial magnetic field and axial magnetic field of package Circumferential field, from spacial multi-angle and comprehensive reflection wirerope internal injury draws
The spatial magnetic field situation of change risen is damaged according to the change detection of spatial magnetic field, improves the reliable of detection
Property.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of testing device for wire ropes provided in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of another testing device for wire ropes provided in an embodiment of the present invention；
Fig. 3 is the left view of third annular permanent magnet；
Fig. 4 is the structural schematic diagram of annulus detection support.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention rather than limiting the invention.It also should be noted that in order to just
Only the parts related to the present invention are shown in description, attached drawing rather than entire infrastructure.
Fig. 1 is a kind of structural schematic diagram of testing device for wire ropes provided in an embodiment of the present invention.Referring to Fig. 1, the device
Including：Circumferential magnetization device 10；First diametrical magnetization device 20 of 10 first side of circumferential magnetization device is set, and setting with circumferential direction
The second diametrical magnetization device 30 of the opposite second side in 10 first side of magnetizer；Conducting magnetic component 40 is arranged in the first diametrical magnetization device
20 and second between diametrical magnetization device 30, and the internal diameter of conducting magnetic component 40 is greater than or equal to the outer diameter of circumferential magnetization device 10；Every magnetic structure
Part 50 is arranged between conducting magnetic component 40 and circumferential magnetization device 10.
In the present embodiment, circumferential magnetization device 10 can produce along the magnetic field of magnetizer circumferencial direction.Circumferential magnetization device pair
Wirerope 60 to be measured carries out circumferential magnetization.First diametrical magnetization device 20 and the second diametrical magnetization device 30 can produce radial magnetic field,
Diametrical magnetization is carried out to wirerope 60 to be measured.Magnetizer in the present embodiment is set as the openable and closable structure mould of dissection type up and down
Formula, convenient for the installation during on-site test.Due to conducting magnetic component 40, setting is in the first diametrical magnetization device 20 and the second radial magnetic
Change between device 30, the first diametrical magnetization device 20 and the second diametrical magnetization device 30 can also generate axial magnetic field.In wirerope to be measured
60 middle part can generate radially, circumferentially with axial multidirectional magnetizing field, thus from multi-faceted full angle to wirerope 60 to be measured
Carry out the magnetization of complex multiple-loop.The space magnetic field knots modification that the comprehensive damage of wirerope 60 to be measured generates can all be mapped to more
In the variation in dimension space magnetic field, to be carried out by the situation of change of complete detection space magnetic field to damage of steel cable comprehensively comprehensive
Close analyzing and diagnosing.Wirerope need to generally be carried out axial saturation uniform magnetization by existing damage of steel cable electromagnetic detection method to be detected
To the magnetic signal knots modification formed due to damage of steel cable.Damaging wirerope magnetizing field is a 3 d-space field, especially right
The longitudinal damage being distributed in inside wirerope, single axial magnetize the information that cannot reflect comprehensively damage from all-dimensional multi-angle,
Phenomena such as being easy to appear missing inspection, erroneous judgement.Detection device provided in this embodiment and traditional single axial or radial direction magnetize
The detection device of wirerope is compared, have the advantages that can complete detection to being distributed to the damage of wirerope everywhere.Conducting magnetic component
40 can be made of permeability magnetic material.It can be made of magnetic separator every magnetic component 50, for preventing the first diametrical magnetization device
20 and the second axial magnetic field and circumferential magnetization device 10 between diametrical magnetization device 30 generate while interfering with each other of Circumferential field,
Play the role of supporting circumferential magnetization device 10.
The embodiment of the invention provides wirerope detection device, diametrical magnetization device to wirerope carry out diametrical magnetization,
Circumferential magnetization device carries out circumferential magnetization to wirerope, and conducting magnetic component connects together two diametrical magnetization devices, forms one and closes
The magnetization cycle of conjunction.By keeping apart every magnetic component between diametrical magnetization device and circumferential magnetization device, guarantee two magnetization cycle phases
It is mutually independent, it is independent of each other.The magnetization configuration and package of the minor loop that Circumferential field is formed are provided with around wirerope to be measured
The magnetization configuration in the big circuit that the radial magnetic field and axial magnetic field of Circumferential field are formed, from spacial multi-angle and comprehensive reflection steel
Spatial magnetic field situation of change caused by cord internal injury is damaged according to the change detection of spatial magnetic field, is mentioned
The high reliability of detection, exhaustively detects damage of steel cable to comprehensive, is especially distributed across the circumferential different positions of wirerope
The recognition effect that the various smaller longitudinal damages set and internal injury have had.
Optionally, based on the above technical solution, the first diametrical magnetization device 20 include first annular permanent magnet, first
It is on the inside of the pole N on the outside of annular permanent magnet is the pole S or outside be on the inside of the pole S is the pole N；Second diametrical magnetization device includes the second ring
It is the pole N that shape permanent magnet, which is on the inside of the pole S on the outside of the second annular permanent magnet, or outside be on the inside of the pole N is the pole S.Illustratively, when
It is on the inside of the pole N on the outside of the first annular permanent magnet that first diametrical magnetization device 20 includes is the pole S, the second diametrical magnetization device 30 includes
The second annular permanent magnet on the outside of be on the inside of the pole S be the pole N.When the first annular permanent magnet that the first diametrical magnetization device 20 includes
It is the pole N that outside, which is on the inside of the pole S, be on the inside of the pole N on the outside of the second annular permanent magnet that the second diametrical magnetization device 30 includes is the pole S.
It should be noted that first annular permanent magnet and the second annular permanent magnet may include upper permanent magnet and lower permanent magnet.
Being on the outside of the first annular permanent magnet for including with the first diametrical magnetization device 20 is the pole S, the second radial magnetic on the inside of the pole N
Changing be on the inside of the pole S on the outside of the second annular permanent magnet that device 30 includes is that N extremely example is illustrated, referring to fig. 2, the first radial magnetic
Changing device can produce the first radial magnetic field H1, and the second diametrical magnetization device can produce the second radial magnetic field H2.First radial magnetic
Axial magnetic field H3 can be formed between device and the second diametrical magnetization device by changing.First radial magnetic field, the second radial magnetic field and axial magnetic
Field can form a closed magnetic field.
Optionally, referring to Fig. 3, circumferential magnetization device 10 includes third annular permanent magnet, and third annular permanent magnet includes multiple
Fan-shaped permanent magnet 11.In two neighboring fan-shaped permanent magnet, the pole N of one of sector permanent magnet and another fan-shaped permanent magnetism
The pole S of body is in contact, to form Circumferential field H4.It should be noted that the embodiment of the present invention is for the specific of fan-shaped permanent magnet
Numerical value is not construed as limiting, and those skilled in the art can carry out sets itself according to the actual situation.
Optionally, the conducting magnetic component 40 in the detection device includes armature, and armature setting is in first annular permanent magnet and the
Between second ring permanent magnet.Armature is used to form closed magnetic loop.Armature is usually to be manufactured by soft magnetic material, as pure iron,
Cast iron, silicon steel and permalloy etc..
Optionally, referring to fig. 4, which further includes multiple magnetic signal detecting elements 70；Annulus detection support, annulus
Detection support 80 is used to support magnetic signal detecting element 70, and magnetic signal detecting element 70 is evenly distributed on annulus detection support 80
On；The outer surface of annulus detection support 80 is in contact (not shown) with the inner surface of third annular permanent magnet.Optionally, annulus is examined
It can be multiple for surveying bracket 80, illustratively be 2.Optionally, magnetic signal detecting element includes that hall device or magnetic resistance pass
Inductor component.Optionally, the range of the internal diameter of annulus detection support 80 is to be less than or equal to 55 millimeters more than or equal to 35 millimeters.
The distance of the corresponding surface distance of the internal diameter of annulus detection support 80 wirerope to be measured is greater than or equal to 5 millimeters, is less than or equal to
25 millimeters.Have certain gap between annulus detection support and wirerope to be measured, avoid in detection process annulus detection support with
It rubs between wirerope to be measured, to guarantee the normal detection process of wirerope to be measured.
Optionally, the internal diameter of first annular permanent magnet is greater than the outer diameter of third annular permanent magnet；Second annular permanent magnet
Internal diameter is greater than the outer diameter of third annular permanent magnet.Optionally, the internal diameter of first annular permanent magnet and the second annular permanent magnet is interior
Diameter is equal；The outer diameter of the outer diameter of first annular permanent magnet and the second annular permanent magnet is equal.Optionally, first annular permanent magnet with
The distance between third annular permanent magnet is equal with the distance between third annular permanent magnet with the second annular permanent magnet.With Fig. 2
For the testing device for wire ropes shown, closed magnetic field, axial magnetic field H3 and first are formd on the surface of wirerope to be measured
Radial magnetic field H1 and the second radial magnetic field H2 are orthogonal, and the magnetic confining field formed is greater than the magnetic field of Circumferential field H4.Axial magnetic field
H3 is simultaneously and Circumferential field H4 is orthogonal.
It should be noted that the embodiment of the present invention is for first annular permanent magnet, the second annular permanent magnet and third ring
The specific value of the internal diameter of shape permanent magnet, outer diameter and length is not construed as limiting, those skilled in the art can according to the actual situation into
Row sets itself.
Optionally, which further includes signal transmission component, is arranged inside armature, the signal of signal transmission component
Input terminal is electrically connected with the signal output end of detecting element；The signal output end of signal transmission component and the signal of controller input
End electrical connection.
It should be noted that by Fig. 2 shows testing device for wire ropes for, form envelope on the surface of wirerope to be measured
The magnetic field closed, axial magnetic field H3 is orthogonal with the first radial magnetic field H1 and the second radial magnetic field H2, and the magnetic confining field formed is greater than
The magnetic field of Circumferential field H4.Axial magnetic field H3 is simultaneously and Circumferential field H4 is orthogonal.It is arranged in circumferential magnetization device and wirerope to be measured
Between annulus detection support on magnetic signal detecting element be used to detect the Spatial Multi-Dimensional quadrature field on wirerope surface to be measured
Change situation, illustratively can be the variation of magnetic flux.The change situation in the magnetic field that magnetic signal detecting element will test
It is changed into corresponding electric signal, is sent to signal transmission component.The electric signal is issued controller again by signal transmission component,
The corresponding electric signal of change situation in the controller magnetic field on wirerope surface to be measured based on the received, analyzes in wirerope to be measured
The defect in portion, to differentiate damage of steel cable from comprehensive.
Note that the above is only a better embodiment of the present invention and the applied technical principle.It will be appreciated by those skilled in the art that
The invention is not limited to the specific embodiments described herein, be able to carry out for a person skilled in the art it is various it is apparent variation,
It readjusts, be combined with each other and substitutes without departing from protection scope of the present invention.Therefore, although by above embodiments to this
Invention is described in further detail, but the present invention is not limited to the above embodiments only, is not departing from present inventive concept
In the case of, it can also include more other equivalent embodiments, and the scope of the invention is determined by the scope of the appended claims.
Claims (10)
1. a kind of testing device for wire ropes, which is characterized in that including：
Circumferential magnetization device；
First diametrical magnetization device of first side of circumferential magnetization device is set, and setting with the circumferential magnetization device first
The second diametrical magnetization device of the opposite second side in side；
Conducting magnetic component is arranged between the first diametrical magnetization device and the second diametrical magnetization device, the conducting magnetic component
Internal diameter is greater than or equal to the outer diameter of the circumferential magnetization device；
Every magnetic component, it is arranged between the conducting magnetic component and the circumferential magnetization device.
2. detection device according to claim 1, which is characterized in that
The first diametrical magnetization device includes first annular permanent magnet, be on the inside of the pole N on the outside of the first annular permanent magnet is S
It is the pole N that pole or outside, which are on the inside of the pole S,；
The second diametrical magnetization device includes the second annular permanent magnet, be on the inside of the pole S on the outside of second annular permanent magnet is N
It is the pole S that pole or outside, which are on the inside of the pole N,.
3. detection device according to claim 2, which is characterized in that
The circumferential magnetization device includes third annular permanent magnet, and the third annular permanent magnet includes multiple fan-shaped permanent magnets.
4. detection device according to claim 2, which is characterized in that
The conducting magnetic component includes armature, and the armature is arranged in the first annular permanent magnet and second annular permanent magnet
Between.
5. detection device according to claim 3, which is characterized in that
It further include multiple magnetic signal detecting elements；
Annulus detection support, the annulus detection support are used to support the detecting element, and the magnetic signal detecting element is uniform
It is distributed in the annulus detection support；
The outer surface of the annulus detection support is in contact with the inner surface of the third annular permanent magnet.
6. detection device according to claim 5, which is characterized in that
The range of the internal diameter of the annulus detection support is to be less than or equal to 55 millimeters more than or equal to 35 millimeters.
7. detection device according to claim 4, which is characterized in that
Further include signal transmission component, be arranged inside the armature, the signal input part of the signal transmission component with it is described
The signal output end of detecting element is electrically connected；
The signal output end of the signal transmission component is electrically connected with the signal input part of controller.
8. detection device according to claim 3, which is characterized in that
The internal diameter of the first annular permanent magnet is greater than the outer diameter of the third annular permanent magnet；
The internal diameter of second annular permanent magnet is greater than the outer diameter of the third annular permanent magnet.
9. detection device according to claim 8, which is characterized in that
The internal diameter of the internal diameter of the first annular permanent magnet and second annular permanent magnet is equal；
The outer diameter of the outer diameter of the first annular permanent magnet and second annular permanent magnet is equal.
10. detection device according to claim 9, which is characterized in that
The distance between the first annular permanent magnet and the third annular permanent magnet and second annular permanent magnet and institute
It is equal to state the distance between third annular permanent magnet.
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