CN219348734U - Adjustable cross magnetic yoke probe for pipeline weld joint flaw detection and flaw detector thereof - Google Patents
Adjustable cross magnetic yoke probe for pipeline weld joint flaw detection and flaw detector thereof Download PDFInfo
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- CN219348734U CN219348734U CN202320113338.2U CN202320113338U CN219348734U CN 219348734 U CN219348734 U CN 219348734U CN 202320113338 U CN202320113338 U CN 202320113338U CN 219348734 U CN219348734 U CN 219348734U
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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
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Abstract
The utility model relates to an adjustable cross magnetic yoke probe for pipeline weld joint flaw detection and a flaw detector thereof, which belong to the technical field of nondestructive testing devices, and comprise a magnetic yoke probe body, wherein an adjustable chamfer roller assembly is arranged below the magnetic yoke probe body and comprises a roller mechanism and a chamfer angle adjusting mechanism, the chamfer angle adjusting mechanism is movably connected below the magnetic yoke body, the roller mechanism is assembled below the chamfer angle adjusting mechanism, and the magnetic yoke probe body is in vertical contact with a cambered surface of a pipeline for flaw detection through the adjustable chamfer angle roller assembly; the roller mechanism with the double rows of wheels can be suitable for flaw detection work of various pipe diameters, so that magnetic poles are always vertical to the cambered surface, and the difficulty of magnetic pole angle adjustment is reduced.
Description
Technical Field
The utility model provides an adjustable cross magnetic yoke probe for pipeline weld joint flaw detection and a flaw detector thereof, belonging to the technical field of nondestructive detection devices.
Background
In industry, magnetic particle inspection can be used to make final product inspection to ensure that the workpiece does not produce deleterious defects after various processing steps (e.g., welding, metal heat treatment, grinding). The magnetic powder inspection is a nondestructive inspection method for inspecting defects on the surface or near-surface of ferromagnetic materials by accumulation of magnetic powder in a leakage magnetic field near the defects. The magnetic powder detection is a frequently used method, the common magnetization method is a magnetic yoke method, the magnetic yoke method has a plurality of advantages in the magnetic powder detection, defects in any direction can be found by changing the direction of the magnetic yoke method, but the corresponding defects usually need to be detected after the magnetic yoke is rotated by 90 degrees for finding the defects in all directions, and the large-area detection requires blocking accumulation and takes time.
On the basis, the crossed magnetic yoke used in the prior art, as shown in the device of fig. 1, is characterized in that the electromagnetic yoke assembled by crossed superposition of 2 magnets is electrified with current with phase difference, thus the combined electromagnetic yoke can generate a rotating magnetic field which changes along with time, the magnetization direction on a workpiece is continuously changed and rotated, so that defects in all directions can be detected as long as the workpiece is magnetized once, the flaw detection efficiency and the flaw detection rate are improved, but the magnetic poles and the rollers below the structure are fixed, and therefore, the device is only suitable for flaw detection of planar workpieces, and good contact between four magnetic poles and the workpiece is difficult to ensure for the cambered surface of a tubular workpiece, and the flaw detection rate is influenced. Therefore, how to improve the existing magnetic yoke flaw detector is a technical problem to be solved at present.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model aims to provide an adjustable cross magnetic yoke probe for pipeline weld joint flaw detection and a flaw detector thereof, which solve the problems in the prior art.
The utility model discloses an adjustable cross magnetic yoke probe for pipeline weld joint flaw detection, which comprises a magnetic yoke probe body, wherein an adjustable chamfer roller assembly is arranged below the magnetic yoke probe body, the adjustable chamfer roller assembly comprises a roller mechanism and a chamfer angle adjusting mechanism, the chamfer angle adjusting mechanism is movably connected below the magnetic yoke probe body, the roller mechanism is assembled below the chamfer angle adjusting mechanism, a magnetic pole is arranged below the magnetic yoke probe body, a rotary chamfer angle adjusting part is arranged at the position, connected with the magnetic pole below the magnetic yoke probe body, of the upper part of the chamfer angle adjusting mechanism, and the magnetic yoke probe body is always in vertical contact with a cambered surface of a pipeline through the adjustable chamfer angle roller assembly for flaw detection.
The chamfering adjusting mechanism comprises an adjusting frame body, a joggle groove structure matched with the magnetic pole and an adjusting screw are arranged above the adjusting frame body, and the lower end of the magnetic pole penetrates into the joggle groove structure and is connected through the adjusting screw.
The chamfering mechanism comprises a roller group, the roller group comprises two rollers, a roller shaft is connected between the two rollers, a roller shaft hole is formed in the lower end of the chamfering adjusting mechanism, and the roller shaft penetrates through the roller shaft hole to be connected with the two rollers.
The joggling groove structure include joggling groove I and joggling groove II, joggling groove I sets up in adjustable chamfer roller component's upper end, joggling groove II sets up the bottom at the yoke probe body, joggling groove I and joggling groove II crisscross cooperation assembly.
The middle part of the joggling groove I is provided with a screw hole I, the middle part of the joggling groove II is provided with a screw hole II, the positions of the screw hole I and the screw hole II are corresponding, and the adjusting screw penetrates out of the screw hole I and the screw hole II to realize the assembly of the adjustable chamfering roller assembly.
The roller mechanisms are of a double-row wheel structure, and the roller mechanisms are arranged below the magnetic poles.
The adjustable chamfer roller assembly is provided with 4 groups.
The utility model relates to a cross magnetic yoke flaw detector for pipeline weld flaw detection, which comprises a magnetic yoke body and a coil wound on the magnetic yoke body, wherein an adjustable cross magnetic yoke probe for pipeline weld flaw detection is arranged below the magnetic yoke body.
Compared with the prior art, the utility model has the following beneficial effects:
in the utility model, the adjustable chamfering roller assembly can rotate along the rotating shaft of the adjusting screw, so that the flaw detection of the welding line of the pipe can be realized, and the flaw detection of the plane can be realized. When flaw detection is carried out on a pipe fitting, firstly, an adjusting screw is unscrewed, an adjustable chamfering roller assembly can freely rotate, secondly, rollers are attached to a workpiece to be detected, each roller is in contact with the surface of the workpiece to be detected, 2 groups of rollers are arranged on each adjustable chamfering roller assembly, the probe is pressed forcefully, 2 groups of rollers on the same adjustable chamfering roller assembly are tangential to the surface of the workpiece to be detected, a fixed angle is formed between the adjustable chamfering roller assembly and a magnetic yoke main body, the angles of the adjustable chamfering roller assemblies on two sides are equal due to bilateral symmetry of the magnetic yoke, finally, the roller is kept in contact with the workpiece, the adjusting screw is screwed, and flaw detection work is started. The utility model can be better suitable for the flaw detection work of the pipe fitting by arranging the chamfer angle adjusting mechanism, and improves the detection efficiency and the detection rate.
The utility model can be suitable for flaw detection work of various pipe diameters by arranging the roller mechanisms with double rows of wheels, always leads the magnetic poles to be vertical to the cambered surface, and reduces the difficulty of adjusting the angle of the magnetic poles.
Drawings
FIG. 1 is a schematic diagram of a conventional cross yoke structure;
FIG. 2 is a schematic diagram of the overall structure of the present utility model;
FIG. 3 is a schematic view of a yoke probe holder according to the present utility model;
FIG. 4 is a schematic view of the structure of the adjustable chamfer roller assembly of the present utility model;
FIG. 5 is a schematic view of the structure of the adjustable chamfer roller assembly of the present utility model;
FIG. 6 is a side view of an adjustable chamfer roller assembly of the present utility model;
FIG. 7 is a schematic view of the working state of the present utility model;
in the figure: 1. a yoke body; 2. an adjustable chamfer roller assembly; 3. a chamfer angle adjusting mechanism; 4. a roller shaft; 5. a roller; 6. an adjusting screw; 7. mortise I; 8. joggle joint groove II; 9. a screw hole II; 10. a screw hole I; 11. a wheel axle hole; 12. a coil.
Detailed Description
The utility model will be further described with reference to the accompanying drawings, in which:
example 1:
as shown in fig. 2-6: the utility model relates to an adjustable cross magnetic yoke probe for pipeline weld joint flaw detection, which comprises a magnetic yoke probe body, wherein an adjustable chamfer roller assembly 2 is arranged below the magnetic yoke probe body, the adjustable chamfer roller assembly 2 comprises a roller mechanism and a chamfer angle adjusting mechanism 3, the chamfer angle adjusting mechanism 3 is movably connected below the magnetic yoke body 1, the roller mechanism is assembled below the chamfer angle adjusting mechanism 3, and the magnetic yoke probe body is in vertical contact with a pipeline cambered surface through the adjustable chamfer angle roller assembly 2 for flaw detection.
The chamfer angle adjusting mechanism 3 comprises an adjusting frame body, a magnetic pole is arranged below the magnetic yoke probe body, a joggle groove structure matched with the magnetic pole and an adjusting screw 6 are arranged above the adjusting frame body, and the lower end of the magnetic pole penetrates into the joggle groove structure and is connected through the adjusting screw 6.
The roller mechanism comprises a roller group, the roller group comprises two rollers 5, a roller shaft 4 is connected between the two rollers 5, the lower end of the chamfer adjusting mechanism 3 is provided with a roller shaft hole 11, and the roller shaft 4 is connected with the two rollers 5 through the roller shaft hole 11.
The joggle groove structure includes joggle groove I7 and joggle groove II8, joggle groove I7 sets up the upper end at adjustable chamfer gyro wheel subassembly 2, joggle groove II8 sets up the bottom at the yoke probe body, the crisscross cooperation assembly of joggle groove I7 and joggle groove II8, joggle groove I7 mid-section is equipped with screw I10, joggle groove II8 mid-section is equipped with screw II9, screw I10 and screw II 9's position is corresponding, adjusting screw 6 wears out screw I10 and screw II9 and realizes the assembly of adjustable chamfer gyro wheel subassembly 2, in order to guarantee the rotation of noninterference joint, usually this position has 1 adjusting screw.
The roller mechanisms are of double numbers, and the roller mechanisms form a double-row wheel structure below the magnetic poles, so that the roller mechanisms can be suitable for flaw detection work of various pipe diameters, the magnetic poles are always vertical to the cambered surfaces, and the difficulty of adjusting the angles of the magnetic poles is reduced.
The adjustable chamfer roller component 2 is provided with 4 groups.
As shown in fig. 7, when flaw detection is performed on a pipe, firstly, an adjusting screw 6 is unscrewed, so that an adjustable chamfering roller assembly 2 can rotate freely, secondly, rollers 5 are attached to a workpiece to be detected, each roller 5 is contacted with the surface of the workpiece to be detected, 2 groups of rollers 5 are arranged on each adjustable chamfering roller assembly 2, the probe is pressed forcefully, 2 groups of rollers 5 on the same adjustable chamfering roller assembly 2 are tangential to the surface of the workpiece to be detected, a fixed angle is formed between the adjustable chamfering roller assembly 2 and a magnetic yoke main body 1, and the angles of the adjustable chamfering roller assemblies 2 on two sides are equal due to bilateral symmetry of the magnetic yoke, finally, the roller 5 is kept in a state of being attached to the workpiece, the adjusting screw 6 is screwed, and flaw detection is started.
Example 2:
on the basis of embodiment 1, the cross magnetic yoke flaw detector for pipeline welding seam flaw detection comprises a magnetic yoke body 1 and a coil 12 wound on the magnetic yoke body 1, wherein an adjustable cross magnetic yoke probe for pipeline welding seam flaw detection is arranged below the magnetic yoke body 1, and the probe is arranged on a magnetic pole to detect the flaw, so that the flaw detection of a cambered surface of a pipeline can be realized, and the problems in the prior art are solved.
The adjustable cross magnetic yoke probe for pipeline weld joint flaw detection and the flaw detector thereof, which are disclosed by the embodiment of the utility model and are described by combining the drawings, are better suitable for the flaw detection work of pipe fittings by arranging the chamfer angle adjusting mechanism, and the detection efficiency and the detection rate are improved; the roller mechanism with the double rows of wheels can be suitable for flaw detection work of various pipe diameters, so that magnetic poles are always vertical to the cambered surface, and the difficulty of magnetic pole angle adjustment is reduced. Solves the problems existing in the prior art. The present utility model is not limited to the embodiments described, but is capable of modification, alteration, replacement and variation in embodiments without departing from the spirit and scope of the present utility model.
Claims (8)
1. An adjustable cross magnetic yoke probe for pipeline weld joint flaw detection, includes magnetic yoke probe body, its characterized in that: the below of yoke probe body be equipped with adjustable chamfer roller component (2), adjustable chamfer roller component (2) include gyro wheel mechanism and chamfer adjustment mechanism (3), the below at yoke probe body is connected to chamfer adjustment mechanism (3) movable, gyro wheel mechanism assembles in the below of chamfer adjustment mechanism (3), the below of yoke probe body is equipped with the magnetic pole, the top of chamfer adjustment mechanism (3) is equipped with rotary chamfer adjustment portion with the position department that the magnetic pole of yoke probe body below is connected, yoke probe body is detected a flaw through adjustable chamfer roller component (2) all the time with pipeline cambered surface vertical contact.
2. The adjustable cross yoke probe for pipe weld inspection of claim 1, wherein: the chamfering adjusting mechanism (3) comprises an adjusting frame body, a joggle groove structure matched with a magnetic pole and an adjusting screw (6) are arranged above the adjusting frame body, and the lower end of the magnetic pole penetrates into the joggle groove structure and is connected through the adjusting screw (6).
3. The adjustable cross yoke probe for pipe weld inspection of claim 1, wherein: the chamfering mechanism is characterized by comprising a roller group, wherein the roller group comprises two rollers (5), a roller shaft (4) is connected between the two rollers (5), a roller shaft hole (11) is formed in the lower end of the chamfering adjusting mechanism (3), and the roller shaft (4) penetrates through the roller shaft hole (11) to be connected with the two rollers (5).
4. The adjustable cross yoke probe for pipe weld inspection of claim 2, wherein: the joggling groove structure include joggling groove I (7) and joggling groove II (8), joggling groove I (7) set up the upper end at adjustable chamfer roller assembly (2), joggling groove II (8) set up the bottom at the yoke probe body, joggling groove I (7) and joggling groove II (8) crisscross cooperation assembly.
5. The adjustable cross yoke probe for pipe weld inspection as defined in claim 4, wherein: the middle part of the joggle joint groove I (7) is provided with a screw hole I (10), the middle part of the joggle joint groove II (8) is provided with a screw hole II (9), the positions of the screw hole I (10) and the screw hole II (9) are corresponding, and the adjusting screw (6) penetrates out of the screw hole I (10) and the screw hole II (9) to realize the assembly of the adjustable chamfering roller assembly (2).
6. An adjustable cross yoke probe for pipe weld inspection as defined in claim 3, wherein: the roller mechanisms are of a double-row wheel structure, and the roller mechanisms are arranged below the magnetic poles.
7. The adjustable cross yoke probe for pipe weld inspection of claim 1, wherein: the adjustable chamfering roller assembly (2) is provided with 4 groups.
8. A cross magnetic yoke flaw detector for pipeline weld flaw detection, includes magnetic yoke body (1) and coil (12) of coiling on magnetic yoke body (1), its characterized in that: an adjustable cross yoke probe for pipeline weld inspection according to any one of claims 1 to 7 is mounted below the yoke body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320113338.2U CN219348734U (en) | 2023-01-19 | 2023-01-19 | Adjustable cross magnetic yoke probe for pipeline weld joint flaw detection and flaw detector thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320113338.2U CN219348734U (en) | 2023-01-19 | 2023-01-19 | Adjustable cross magnetic yoke probe for pipeline weld joint flaw detection and flaw detector thereof |
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| Publication Number | Publication Date |
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| CN219348734U true CN219348734U (en) | 2023-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202320113338.2U Active CN219348734U (en) | 2023-01-19 | 2023-01-19 | Adjustable cross magnetic yoke probe for pipeline weld joint flaw detection and flaw detector thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117990777A (en) * | 2024-04-03 | 2024-05-07 | 山东瑞祥检测有限公司 | Portable magnetic powder nondestructive test device |
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2023
- 2023-01-19 CN CN202320113338.2U patent/CN219348734U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117990777A (en) * | 2024-04-03 | 2024-05-07 | 山东瑞祥检测有限公司 | Portable magnetic powder nondestructive test device |
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