CN219496249U - Eddy current detection probe device - Google Patents
Eddy current detection probe device Download PDFInfo
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- CN219496249U CN219496249U CN202320629457.3U CN202320629457U CN219496249U CN 219496249 U CN219496249 U CN 219496249U CN 202320629457 U CN202320629457 U CN 202320629457U CN 219496249 U CN219496249 U CN 219496249U
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- 239000000523 sample Substances 0.000 title claims abstract description 145
- 238000001514 detection method Methods 0.000 title claims abstract description 73
- 230000001360 synchronised effect Effects 0.000 claims abstract description 78
- 230000001681 protective effect Effects 0.000 claims abstract description 5
- 238000007689 inspection Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 230000007547 defect Effects 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 230000005291 magnetic effect Effects 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000003302 ferromagnetic material Substances 0.000 description 1
- 125000000623 heterocyclic group Chemical group 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000004441 surface measurement Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
The utility model belongs to the technical field of eddy current flaw detection, and relates to an eddy current detection probe device. The related eddy current inspection probe device is provided with a probe bracket; the probe bracket is used as a main body of the eddy current detection probe device, and a pair of synchronous pulley mounting shafts are arranged on the side surface of the probe bracket; the bottom of the probe bracket is provided with an encoder connecting shaft; the angle driving motor is arranged on the probe bracket and connected with the synchronous pulley I to drive the synchronous pulley I to rotate; the synchronous belt wheel I is connected with the synchronous belt wheel II through a synchronous belt to drive the synchronous belt wheel II to rotate; the probe is arranged at the bottom of the probe bracket and is connected with a synchronous pulley mounting shaft of the synchronous pulley II and an encoder connecting shaft; the angle encoder is arranged on the encoder connecting shaft; the synchronous belt wheel I, the synchronous belt wheel II and the outside of the synchronous belt are provided with protective covers; an adapter is arranged on the upper side of the probe bracket and is connected with the rotary cylinder. The utility model realizes the eddy current detection of the CRB ferrule vertical rollaway nest, the TRB ferrule inclined rollaway nest and the SRB ferrule arc rollaway nest.
Description
Technical Field
The utility model belongs to the technical field of eddy current flaw detection, and particularly relates to an eddy current detection probe device which is suitable for online automatic measurement of various bearing rings such as CRB, TRB, SRB.
Background
Eddy current flaw detection is one of five conventional flaw detection means, an excitation signal is loaded to a probe coil by using an electromagnetic induction principle, and when the probe approaches to the metal surface, an alternating magnetic field around the coil generates induction current on the metal surface; for flat metal, the flow direction of the induced current is circular concentric with the coil, shaped like a vortex, called an eddy; the magnitude, phase and flow pattern of the eddy currents are affected by the conductivity of the test piece, and the eddy currents also generate a magnetic field which in turn causes a change in the impedance of the detection coil. Therefore, when the defect occurs on the surface or near surface of the conductor or the measured metal material changes, the intensity and distribution of the eddy current are affected, the change of the eddy current causes the change of the voltage and the impedance of the detection coil, and according to the change, the existence of the defect in the conductor and the change of the performance of the metal material can be indirectly known.
The existing flaw detection method for the surface of the bearing ring has certain defects, mainly comprises the following two aspects, namely the existing flaw detection method is single type detection, has poor applicability, has the influence of lift-off caused by the fact that the distance between a probe and the surface of the ring is not easy to control during operation for the bearing ring with a complex structure, is relatively unstable in signal, has insufficient detection repeatability, and has low flaw detection speed and low efficiency; and secondly, although the eddy current flaw detection method is more universal, corresponding flaw detection scanning modes, probe structures, flaw detection effects of ferromagnetic materials, flaw detection parameter optimization and the like are required to be researched for different flaw detection objects.
Therefore, how to realize the automatic eddy current flaw detection and evaluation of the surface defects of complex heterocyclic parts such as bearing rings and the like under the high-sensitivity flaw detection requirement is a key problem. This patent uses bearing ring as the example, through design one kind can be used to Cylinder Roller Bearing (CRB), tapered Roller Bearing (TRB), multiple appearance structure of Spherical Roller Bearing (SRB), can adapt to complex ring class part surface's such as straight face, conical surface, curved surface multifunctional self-adaptation vortex test probe in a flexible way, realizes complex ring class part surface vortex test, provides the guarantee for satisfying bearing quality safety and long-life demand.
Disclosure of Invention
In order to solve the above technical problems, an object of the present utility model is to provide an eddy current probe apparatus.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an eddy current detecting probe device is provided with a probe bracket serving as a main body, wherein a pair of synchronous pulley mounting shafts for mounting synchronous pulleys I and II are arranged on the side surface of the probe bracket; the bottom of the probe bracket is provided with an encoder connecting shaft for installing an angle encoder; the probe bracket is also provided with an angle driving motor which is connected with the synchronous belt wheel I and drives the synchronous belt wheel I to rotate; the synchronous belt pulley I is connected with the synchronous belt pulley II through a synchronous belt to drive the synchronous belt pulley II to rotate; the bottom of the probe support is provided with a probe, and the probe is connected with a synchronous pulley mounting shaft of a synchronous pulley II and an encoder connecting shaft to form a structure for driving the probe to conduct angle adjustment under the rotation of the synchronous pulley II so as to conduct eddy current detection on the roller path.
The probe support is characterized in that an adapter is arranged on the upper side of the probe support and connected with the rotary cylinder, and under the control of the rotary cylinder, the adapter drives the probe to rotate 180 degrees, and the orientation of the probe when detecting the outer surface and the inner surface is adjusted.
The encoder connecting shaft is provided with an angle encoder which encodes the rotation angle of the probe and outputs the encoded rotation angle to the control unit for closed-loop feedback.
One side of the synchronous belt is provided with a tension wheel for adjusting the tightness of the synchronous belt.
And a protective cover is arranged outside the synchronous belt wheel I, the synchronous belt wheel II and the synchronous belt.
At least one of the top, the front and the bottom of the probe is provided with a group of detection elements for detecting each surface.
According to the eddy current detection probe device provided by the utility model, by adopting the scheme, the synchronous belt pulley is driven to rotate by the angle driving motor, so that the probe is driven to rotate, and eddy current detection of the CRB ferrule vertical rollaway nest, the TRB ferrule inclined rollaway nest and the SRB ferrule arc rollaway nest is realized; the detection of the surfaces of the upper end face, the lower end face, the outer diameter, the inner diameter, the rollaway nest, the flange and the like of the collar is realized by arranging a group of detection elements at the top, the front face and the bottom of the probe respectively; the probe is rotated 180 degrees through the rotary cylinder, and the orientation of the probe when the outer surface and the inner surface are detected is adjusted; during operation, the eddy current testing probe detects along the surface of the ferrule, and the motion track is parallel to the surface of the ferrule.
Drawings
Fig. 1 is an overall structure diagram of an eddy current probe apparatus provided by the present utility model.
Fig. 2 is a partial view of the probe connection site of fig. 1.
Fig. 3 is a right side view of an eddy current probe apparatus provided by the present utility model.
Fig. 4 is a left side view of an eddy current probe apparatus provided by the present utility model.
Fig. 5 is a functional description diagram of the measurement of the outer surface of the eddy current probe device.
Fig. 6 is a functional description diagram of the inner surface measurement of the eddy current probe device.
Fig. 7 is a functional description diagram of the measurement of the upper end face of the eddy current probe device.
Fig. 8 is a functional description diagram of the measurement of the lower end face of the eddy current probe device.
In the figure: 1. the probe support, 2, synchronous pulley installation axle, 3, encoder connecting axle, 4, synchronous pulley I, 5, synchronous pulley II, 6, angle driving motor, 7, hold-in range, 8, probe, 9, angle encoder, 10, tight wheel that rises, 11, protection casing, 12, adaptor, 13, rotary cylinder, 14, detecting element.
Description of the embodiments
The utility model will be described in detail with reference to the accompanying drawings and specific embodiments:
as shown in fig. 1, 2, 3 and 4, an eddy current inspection probe device comprises a probe bracket 1, a synchronous pulley mounting shaft 2, an encoder connecting shaft 3, a synchronous pulley i 4, a synchronous pulley ii 5, an angle driving motor 6, a synchronous belt 7, a probe 8, an angle encoder 9, a tension pulley 10, a protective cover 11, an adapter 12, a rotary cylinder 13 and a detection unit 14; the probe bracket 1 is used as a main body of the eddy current testing probe device, and a pair of synchronous pulley mounting shafts 2 are arranged on the side surface of the probe bracket 1 and used for mounting synchronous pulleys I4 and II 5; the bottom of the probe bracket 1 is provided with an encoder connecting shaft 3 for installing an angle encoder 9; the angle driving motor 6 is arranged on the probe bracket 1 and connected with the synchronous pulley I4 to drive the synchronous pulley I4 to rotate; the synchronous pulley I4 is connected with the synchronous pulley II 5 through the synchronous belt 7, and drives the synchronous pulley II 5 to rotate; the probe 8 is arranged at the bottom of the probe bracket 1 and connected with the synchronous pulley mounting shaft 2 and the encoder connecting shaft 3 of the synchronous pulley II 5, and the probe 8 is driven to conduct angle adjustment under the rotation of the synchronous pulley II 5.
The probe bracket 1 is provided with an adapter piece 12 on the upper side, the adapter piece 12 is connected with a rotary cylinder 13, and under the control of the rotary cylinder 13, the adapter piece 12 drives the eddy current detection probe device to rotate 180 degrees, and the orientation of the probe 8 in the process of detecting the outer surface and the inner surface is adjusted.
The angle encoder 9 is installed on the encoder connecting shaft 3, encodes the rotation angle of the probe 8, and outputs the encoded rotation angle to the control unit for closed-loop feedback.
One side of the synchronous belt 7 is provided with a tension wheel 10 for adjusting the tightness of the synchronous belt 7. And a protective cover 11 is arranged outside the synchronous pulley I4, the synchronous pulley II 5 and the synchronous belt 7 to protect the synchronous belt structure.
The top, front and bottom of the probe 8 are respectively provided with a group of detection elements for detecting each measuring surface.
As shown in fig. 5, when measuring the outer surface of the bearing, the detection unit 14 directly in front of the probe 8 is used for detection, and the angle driving motor 6 controls the rotation angle of the probe 8 through the synchronous wheel structure according to the specific external shape structure (cylindrical surface, conical surface, spherical surface) of the outer surface, and scans along the outer surface of the ring: when the outer surface is a cylindrical surface, the probe 8 and the probe bracket 1 form 90 degrees, and vertically move from top to bottom along the outer surface; when the outer surface is a conical surface, the angle between the probe 8 and the probe bracket 1 is larger than 90 degrees, and the probe moves in an inclined straight line from top to bottom along the outer surface; when the outer surface is spherical, the detection unit 14 in front of the probe 8 is always parallel to the surface to be detected, and the probe 8 rotates in real time along with the radian change of the surface to be detected, so that the detection of a complete curved surface is realized.
As shown in fig. 6, when measuring the inner surface of the bearing, under the control of the rotary cylinder 13, the adaptor 12 drives the probe to rotate 180 ° and adjusts the orientation of the probe 8 so that the detection unit 14 in front of the probe 8 parallel to the outer surface rotates 180 ° to be parallel to the inner surface of the ferrule. When measuring the bearing inner surface, according to the specific outline structure (cylindrical surface, conical surface, sphere) of the inner surface, the angle driving motor 6 controls the rotation angle of the probe 8 through the synchronous wheel structure, and scans along the inner surface of the ferrule: when the inner surface is a cylindrical surface, the probe 8 and the probe bracket 1 form 90 degrees, and vertically move along the inner surface from top to bottom; when the inner surface is a conical surface, the angle between the probe 8 and the probe bracket 1 is larger than 90 degrees, and the probe moves in an inclined straight line from top to bottom along the inner surface; when the inner surface is a sphere, the detection unit 14 in front of the probe 8 is always parallel to the surface to be detected, and rotates in real time along with the radian change of the surface to be detected, so that the detection of a complete curved surface is realized.
As shown in fig. 7, when measuring the upper end surface or the lower flange of the bearing, the detection unit 14 at the bottom of the probe 8 is used for detection, and according to the specific external shape structure (plane, inclined plane) of the upper end surface or the lower flange, the angle driving motor 6 controls the rotation angle of the probe 8 through the synchronous wheel structure, and scans along the upper end surface or the lower flange: when the upper end face is scanned, the upper end face is a plane, the probe 8 and the probe bracket 1 form 90 degrees, and the probe is moved in parallel from left to right along the upper end face for detection; when the lower flange is scanned, if the lower flange is a plane, the scanning mode is similar to the scanning upper end surface mode, if the lower flange is an inclined plane, the angle between the probe 8 and the probe support 1 is larger than 90 degrees, and the lower flange is obliquely moved from left to right for detection.
As shown in fig. 8, when measuring the lower end face or upper flange of the bearing, the detection unit 14 at the top of the probe 8 is used for detection, and according to the specific external shape structure (plane, inclined plane) of the lower end face or upper flange, the angle driving motor 6 controls the rotation angle of the probe 8 through the synchronous wheel structure to scan along the lower end face or upper flange: when the lower end face is scanned, the lower end face is a plane, the probe 8 and the probe bracket 1 form 90 degrees, and the probe is moved from left to right or from right to left in parallel along the lower end face for detection; when the upper flange is scanned, if the upper flange is a plane, the scanning mode is similar to the mode of scanning the lower end face, and if the upper flange is an inclined plane, the angle between the probe 8 and the probe support 1 is smaller than 90 degrees, and the upper flange is obliquely moved from right to left to detect.
In this embodiment, the working process of the eddy current probe device is as follows:
the mechanical arm drives the eddy current detection probe device to the upper part of the ferrule, and the angle driving motor controls the rotation angle of the probe through the synchronous wheel structure, so that the probe and the probe bracket form 90 degrees, and a detection unit at the bottom of the probe is parallel to the upper end surface of the ferrule; the mechanical arm drives the eddy current detection probe to be 0.6mm away from the upper end face, and the eddy current detection probe moves in parallel from left to right along the upper end face for detection, and the detection range covers the whole upper end face; after the detection of the upper end face, the angle driving motor controls the rotation angle of the probe through the synchronous wheel structure, so that a detection unit in front of the probe is parallel to the outer surface of the ferrule, the distance between the detection unit and the outer surface of the ferrule is 0.6mm, scanning is carried out along the outer surface of the ferrule from top to bottom, the rotation angle is adjusted in real time, the movement track of the detection unit in front of the probe is parallel to the outer surface of the ferrule, and the detection range covers the whole outer surface; after the outer surface scanning is finished, the angle driving motor controls the rotation angle of the probe through the synchronous wheel structure, so that the probe is 90 degrees with the probe support, a detection unit at the top of the probe is parallel to the lower surface of the ferrule, the mechanical arm drives the eddy current detection probe device to the lower end face of the ferrule by 0.6mm, the eddy current detection probe device moves in parallel along the lower end face for detection, and the detection range covers the whole lower end face.
After the detection of the lower end face is completed, the mechanical arm drives the eddy current detection probe device to enter the inner side of the ferrule, the adapter drives the probe to rotate 180 degrees under the control of the rotary cylinder, and the orientation of the probe is adjusted, so that the detection unit in front of the probe parallel to the outer surface rotates 180 degrees to be parallel to the inner surface of the ferrule. The angle driving motor controls the rotation angle of the probe through the synchronous wheel structure, so that the detection unit in front of the probe is parallel to the inner surface of the ferrule, the distance between the detection unit and the inner surface of the ferrule is 0.6mm, scanning is performed along the inner surface of the ferrule from top to bottom, the rotation angle is adjusted in real time, the movement track of the detection unit in front of the probe is parallel to the inner surface of the ferrule, and the detection range covers the whole inner surface.
The above disclosure is only a preferred embodiment of the present utility model, and it should be understood that the scope of the utility model is not limited thereto, and those skilled in the art will appreciate that all or part of the procedures described above can be performed according to the equivalent changes of the claims, and still fall within the scope of the present utility model.
Claims (6)
1. An eddy current probe apparatus, characterized in that: the eddy current detection probe device is provided with a probe bracket serving as a main body, and a pair of synchronous pulley mounting shafts for mounting a synchronous pulley I and a synchronous pulley II are arranged on the side surface of the probe bracket; the bottom of the probe bracket is provided with an encoder connecting shaft for installing an angle encoder; the probe bracket is also provided with an angle driving motor which is connected with the synchronous belt wheel I and drives the synchronous belt wheel I to rotate; the synchronous belt pulley I is connected with the synchronous belt pulley II through a synchronous belt to drive the synchronous belt pulley II to rotate; the bottom of the probe support is provided with a probe, and the probe is connected with a synchronous pulley mounting shaft of a synchronous pulley II and an encoder connecting shaft to form a structure for driving the probe to conduct angle adjustment under the rotation of the synchronous pulley II so as to conduct eddy current detection on the roller path.
2. An eddy current probe apparatus as claimed in claim 1, wherein: the probe support is characterized in that an adapter is arranged on the upper side of the probe support and connected with the rotary cylinder, and under the control of the rotary cylinder, the adapter drives the probe to rotate 180 degrees, and the orientation of the probe when detecting the outer surface and the inner surface is adjusted.
3. An eddy current probe apparatus as claimed in claim 1, wherein: the encoder connecting shaft is provided with an angle encoder which encodes the rotation angle of the probe and outputs the encoded rotation angle to the control unit for closed-loop feedback.
4. An eddy current probe apparatus as claimed in claim 1, wherein: one side of the synchronous belt is provided with a tension wheel for adjusting the tightness of the synchronous belt.
5. An eddy current probe apparatus as claimed in claim 1, wherein: and a protective cover is arranged outside the synchronous belt wheel I, the synchronous belt wheel II and the synchronous belt.
6. An eddy current probe apparatus as claimed in claim 1, wherein: at least one of the top, the front end and the bottom of the probe is provided with a group of detection elements.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320629457.3U CN219496249U (en) | 2023-03-28 | 2023-03-28 | Eddy current detection probe device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320629457.3U CN219496249U (en) | 2023-03-28 | 2023-03-28 | Eddy current detection probe device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219496249U true CN219496249U (en) | 2023-08-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320629457.3U Active CN219496249U (en) | 2023-03-28 | 2023-03-28 | Eddy current detection probe device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219496249U (en) |
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2023
- 2023-03-28 CN CN202320629457.3U patent/CN219496249U/en active Active
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