CN212622394U - High-precision pipeline defect detection equipment based on magnetic leakage - Google Patents
High-precision pipeline defect detection equipment based on magnetic leakage Download PDFInfo
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- CN212622394U CN212622394U CN202021503122.XU CN202021503122U CN212622394U CN 212622394 U CN212622394 U CN 212622394U CN 202021503122 U CN202021503122 U CN 202021503122U CN 212622394 U CN212622394 U CN 212622394U
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Abstract
The utility model discloses a high accuracy pipeline defect detection equipment based on magnetic leakage, including barrel, a plurality of probe and a plurality of magnet steel of installing in the barrel surface, a plurality of the probe is equidistant along the circumference of barrel and is set up, a plurality of the magnet steel divide into two sets on average, and every group the magnet steel sets up along the circumference of barrel in succession respectively, rotor plate central authorities are provided with a rotation axis, and this rotation axis passes the fixed plate, stretches into in the inner tube body to the one end that is back to the rotor plate; the inner cylinder is internally provided with a motor, the rotating shaft is sleeved with at least two bearings at intervals, the rotating plate is provided with at least two second through holes corresponding to the first through holes, when the first through holes and the second through holes are completely overlapped, the leakage flow is maximum, and when the first through holes and the second through holes are not completely overlapped, the leakage flow is zero. The utility model discloses realize the regulation of equipment speed in the pipeline for equipment remains moderate invariable functioning speed throughout in the pipeline, thereby guarantees the detection precision to the pipeline.
Description
Technical Field
The utility model relates to a high accuracy pipeline defect check out test set based on magnetic leakage belongs to the pipeline and equips technical field.
Background
The pipeline is the important facility of transportation liquid and gas, by the wide application in feedwater, drainage, heat supply, supply gas, long distance transport oil and natural gas, agricultural irrigation, among hydraulic engineering and various industrial installation, the pipeline produces damage deformation of different degree after long-time the use easily, lead to the efficiency of oil gas transportation to reduce, produce in the transportation and reveal and lead to the loss increase, also caused serious potential safety hazard simultaneously, consequently necessary to carry out periodic detection to the pipeline, guarantee the intact and peripheral safety of pipeline, reduce pipeline operation management risk, reduce the emergence of operation production accident.
The detector in the pipeline only depends on the action of the power leather cup to move along with the medium, so that the optimal detection speed is difficult to ensure, when the running speed of the detector in the pipeline is too high, the pipeline cleaning is incomplete, the detection data of part of the pipeline section is easy to lose, the impact force of the detector in the pipeline is large, and the leather cup is seriously worn; when the detector in the pipeline runs too slowly, the pipeline cleaning operation and the detection efficiency are low.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a high accuracy pipeline defect check out test set based on magnetic leakage, this high accuracy pipeline defect check out test set based on magnetic leakage realizes the regulation of equipment speed in the pipeline for equipment remains moderate invariable functioning speed throughout in the pipeline, thereby guarantees the detection precision to the pipeline.
In order to achieve the above purpose, the utility model adopts the technical scheme that: a high-precision pipeline defect detection device based on magnetic leakage comprises a cylinder body, a plurality of probes and a plurality of magnetic steels, wherein the probes and the magnetic steels are arranged on the outer surface of the cylinder body, the probes are arranged at equal intervals along the circumferential direction of the cylinder body, the magnetic steels are averagely divided into two groups, each group of magnetic steels are respectively and continuously arranged along the circumferential direction of the cylinder body, and steel brushes are uniformly and densely distributed on each magnetic steel to form two magnetic rings, and the two magnetic rings are respectively positioned on two sides of a probe ring formed by the probes arranged along the circumferential direction of the cylinder body;
the device comprises a cylinder body, a fixed plate, a rotating plate and an inner cylinder body, wherein the fixed plate is fixedly arranged in the cylinder body, the rotating plate is rotatably arranged on one side of the fixed plate, the inner cylinder body is connected to the end face of the other side of the fixed plate, the circumferential end face of the fixed plate is in contact connection with the inner wall of the cylinder body, a rotating shaft is arranged in the center of the rotating plate, and one end of the rotating shaft, which is back to the;
the inner cylinder is internally provided with a motor, an output shaft of the motor is connected with the rotating shaft and is used for driving the rotating shaft to drive the rotating plate to rotate, the rotating shaft is sleeved with at least two bearings at intervals, and the inner ring and the outer ring of each bearing are respectively and relatively fixed with the outer surface of the rotating shaft and the inner surface of the inner cylinder;
the fixed plate and the rotating plate are arranged in a close manner, at least two first through holes are formed in the fixed plate at intervals along the circumferential direction, at least two second through holes corresponding to the first through holes are formed in the rotating plate, when the first through holes and the second through holes are completely overlapped, the drainage quantity is maximum, and when the first through holes and the second through holes are not completely overlapped, the drainage quantity is zero.
The further improved scheme in the technical scheme is as follows:
1. in the above scheme, the bearing is a tapered roller bearing.
2. In the scheme, the inner wall of the inner cylinder between the adjacent bearings is provided with a clamping block which protrudes inwards along the radial direction.
3. In the scheme, two round nuts are overlapped and sleeved on one end, back to the rotating plate, of the rotating shaft.
4. In the scheme, the inner cylinder body is filled with resin glue.
5. In the above scheme, the probe comprises a hall sensor probe and an eddy current sensor probe.
Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage:
1. the utility model discloses high accuracy pipeline defect detection equipment based on magnetic leakage, it can be accurate to the ascending defect of pipeline internal shaft that passes through detect, effectively discern defect position, defect nature etc. of pipeline, provide accurate data guide for the maintenance of pipeline; in addition, the flow discharge area of the fluid in the pipeline can be adjusted in real time, so that the speed of the equipment in the pipeline can be adjusted, the equipment can always keep moderate and constant running speed in the pipeline, and the detection precision of the pipeline is guaranteed.
2. The utility model discloses high accuracy pipeline defect check out test set based on magnetic leakage, two at least bearings are equipped with to the spacer sleeve in its axis of rotation, and the inner circle of this bearing, outer lane respectively with axis of rotation surface, interior barrel internal surface relatively fixed, through the setting of two bearings, guaranteed axis of rotation pivoted stability and smoothness nature, further improve the sensitivity to equipment speed control to improve the accuracy that detects data.
Drawings
FIG. 1 is a schematic structural view of the high-precision pipeline defect detection device based on magnetic flux leakage of the present invention;
FIG. 2 is a schematic view of a partial structure of the high-precision magnetic flux leakage pipeline defect inspection apparatus of the present invention;
figure 3 is the utility model discloses the local structure cross-sectional view of the high accuracy pipeline defect check out test set of magnetic leakage.
In the above drawings: 1. a barrel; 2. a fixing plate; 3. a rotating plate; 4. a rotating shaft; 5. a motor; 6. a first through hole; 7. a second through hole; 9. a leather cup; 10. an inner cylinder; 11. a bearing; 12. a clamping block; 13. a round nut; 24. a probe; 25. magnetic steel; 26. a magnetic ring.
Detailed Description
In the description of this patent, it is noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The meaning of the above terms in this patent may be specifically understood by those of ordinary skill in the art.
Example 1: a high-precision pipeline defect detection device based on magnetic leakage comprises a cylinder body 1, a plurality of probes 24 and a plurality of magnetic steels 25, wherein the probes 24 and the magnetic steels 25 are arranged on the outer surface of the cylinder body 1, the probes 24 are arranged at equal intervals along the circumferential direction of the cylinder body 1, the magnetic steels 25 are divided into two groups on average, each group of magnetic steels 25 are respectively and continuously arranged along the circumferential direction of the cylinder body 1, steel brushes are uniformly and densely distributed on each magnetic steel 25, and therefore two magnetic rings 26 are formed, and the two magnetic rings 26 are respectively positioned on two sides of a probe ring formed by the probes 24 in a circumferential arrangement along the cylinder body 1;
the device comprises a fixing plate 2 fixedly arranged in a cylinder body 1, a rotating plate 3 rotatably arranged on one side of the fixing plate 2 and an inner cylinder body 10 connected to the end face of the other side of the fixing plate 2, wherein the circumferential end face of the fixing plate 2 is in contact connection with the inner wall of the cylinder body 1, a rotating shaft 4 is arranged in the center of the rotating plate 3, and one end, back to the rotating plate 3, of the rotating shaft 4 penetrates through the fixing plate 2 and extends into the inner cylinder body 10;
a motor 5 is arranged in the inner cylinder 10, an output shaft of the motor 5 is connected with the rotating shaft 4 and is used for driving the rotating shaft 4 to drive the rotating plate 3 to rotate, at least two bearings 11 are sleeved on the rotating shaft 4 at intervals, and the inner ring and the outer ring of each bearing 11 are respectively fixed with the outer surface of the rotating shaft 4 and the inner surface of the inner cylinder 10;
the fixed plate 2 is close to the setting with the rotor plate 3, and this fixed plate 2 goes up to have two at least first through-holes 6 along circumference interval division, rotor plate 3 goes up to open has two at least second through-holes 7 that correspond with first through-hole 6, and when first through-hole 6 and second through-hole 7 completely coincide, the discharge capacity is the biggest, and when first through-hole 6 and second through-hole 7 do not coincide completely, the discharge capacity is zero.
The bearing 11 is a tapered roller bearing; a clamping block 12 which is protruded inwards along the radial direction is arranged on the inner wall of the inner cylinder 10 between the adjacent bearings 11; the outer surface of the cylinder body 1 is sleeved with a leather cup 9 which is in interference connection with the inner wall of the pipeline; two round nuts 13 are stacked and sleeved on one end of the rotating shaft 4 opposite to the rotating plate 3.
Example 2: a high-precision pipeline defect detection device based on magnetic leakage comprises a cylinder body 1, a plurality of probes 24 and a plurality of magnetic steels 25, wherein the probes 24 and the magnetic steels 25 are arranged on the outer surface of the cylinder body 1, the probes 24 are arranged at equal intervals along the circumferential direction of the cylinder body 1, the magnetic steels 25 are divided into two groups on average, each group of magnetic steels 25 are respectively and continuously arranged along the circumferential direction of the cylinder body 1, steel brushes are uniformly and densely distributed on each magnetic steel 25, and therefore two magnetic rings 26 are formed, and the two magnetic rings 26 are respectively positioned on two sides of a probe ring formed by the probes 24 in a circumferential arrangement along the cylinder body 1;
the device comprises a fixing plate 2 fixedly arranged in a cylinder body 1, a rotating plate 3 rotatably arranged on one side of the fixing plate 2 and an inner cylinder body 10 connected to the end face of the other side of the fixing plate 2, wherein the circumferential end face of the fixing plate 2 is in contact connection with the inner wall of the cylinder body 1, a rotating shaft 4 is arranged in the center of the rotating plate 3, and one end, back to the rotating plate 3, of the rotating shaft 4 penetrates through the fixing plate 2 and extends into the inner cylinder body 10;
a motor 5 is arranged in the inner cylinder 10, an output shaft of the motor 5 is connected with the rotating shaft 4 and is used for driving the rotating shaft 4 to drive the rotating plate 3 to rotate, at least two bearings 11 are sleeved on the rotating shaft 4 at intervals, and the inner ring and the outer ring of each bearing 11 are respectively fixed with the outer surface of the rotating shaft 4 and the inner surface of the inner cylinder 10;
the fixed plate 2 is close to the setting with the rotor plate 3, and this fixed plate 2 goes up to have two at least first through-holes 6 along circumference interval division, rotor plate 3 goes up to open has two at least second through-holes 7 that correspond with first through-hole 6, and when first through-hole 6 and second through-hole 7 completely coincide, the discharge capacity is the biggest, and when first through-hole 6 and second through-hole 7 do not coincide completely, the discharge capacity is zero.
The inner cylinder 10 is filled with resin glue; the probe 24 includes a hall sensor probe and an eddy current sensor probe; the outer surface of the cylinder body 1 is sleeved with a leather cup 9 which is in interference connection with the inner wall of the pipeline.
By adopting the high-precision pipeline defect detection equipment based on magnetic flux leakage, the axial defects in the passing pipeline can be accurately detected, the defect positions, the defect properties and the like of the pipeline can be effectively identified, and accurate data guidance is provided for the maintenance of the pipeline;
in addition, the flow discharge area of the fluid in the pipeline can be adjusted in real time, so that the speed of the equipment in the pipeline can be adjusted, the equipment can always keep a moderate and constant running speed in the pipeline, and the detection precision of the pipeline is ensured;
in addition, through the arrangement of the two bearings, the stability and the fluency of the rotation of the rotating shaft are ensured, the sensitivity of the speed regulation of the equipment is further improved, and the accuracy of the detection data is improved.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (6)
1. The utility model provides a high accuracy pipeline defect detection equipment based on magnetic leakage which characterized in that: the magnetic ring type ultrasonic probe comprises a barrel body (1), a plurality of probes (24) and a plurality of magnetic steels (25), wherein the probes (24) are arranged on the outer surface of the barrel body (1) at equal intervals along the circumferential direction of the barrel body (1), the magnetic steels (25) are evenly divided into two groups, each group of magnetic steels (25) are respectively and continuously arranged along the circumferential direction of the barrel body (1), steel brushes are uniformly and densely distributed on each magnetic steel (25) to form two magnetic rings (26), and the two magnetic rings (26) are respectively positioned on two sides of a probe ring formed by the probes (24) arranged along the circumferential direction of the barrel body (1);
the cylinder body is characterized by further comprising a fixing plate (2) fixedly arranged in the cylinder body (1), a rotating plate (3) rotatably arranged on one side of the fixing plate (2) and an inner cylinder body (10) connected to the end face of the other side of the fixing plate (2), wherein the circumferential end face of the fixing plate (2) is in contact connection with the inner wall of the cylinder body (1), a rotating shaft (4) is arranged in the center of the rotating plate (3), and one end, back to the rotating plate (3), of the rotating shaft (4) penetrates through the fixing plate (2) and extends into the inner cylinder body (10);
a motor (5) is arranged in the inner cylinder body (10), an output shaft of the motor (5) is connected with the rotating shaft (4) and is used for driving the rotating shaft (4) to drive the rotating plate (3) to rotate, at least two bearings (11) are sleeved on the rotating shaft (4) at intervals, and the inner ring and the outer ring of each bearing (11) are respectively and relatively fixed with the outer surface of the rotating shaft (4) and the inner surface of the inner cylinder body (10);
the fixed plate (2) is close to the setting with rotor plate (3), and it has two at least first through-holes (6) to open along circumference interval on this fixed plate (2), it has two at least second through-holes (7) that correspond with first through-hole (6) to open on rotor plate (3), and when first through-hole (6) and second through-hole (7) completely coincide, the discharge capacity is the biggest, when first through-hole (6) and second through-hole (7) do not coincide completely, the discharge capacity is zero.
2. The high-precision pipeline defect detecting device based on leakage magnetic flux of claim 1, wherein: the bearing (11) is a tapered roller bearing.
3. The high-precision pipeline defect detecting device based on leakage magnetic according to claim 2, characterized in that: a clamping block (12) which is protruded inwards along the radial direction is arranged on the inner wall of the inner cylinder body (10) between the adjacent bearings (11).
4. The high-precision pipeline defect detecting device based on leakage magnetic flux of claim 3, wherein: and one end of the rotating shaft (4) back to the rotating plate (3) is overlapped and sleeved with two round nuts (13).
5. The high-precision pipeline defect detecting device based on leakage magnetic flux of claim 1, wherein: and the inner cylinder (10) is filled with resin glue.
6. The high-precision pipeline defect detecting device based on leakage magnetic flux of claim 1, wherein: the probes (24) include Hall sensor probes and eddy current sensor probes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021503122.XU CN212622394U (en) | 2020-07-27 | 2020-07-27 | High-precision pipeline defect detection equipment based on magnetic leakage |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021503122.XU CN212622394U (en) | 2020-07-27 | 2020-07-27 | High-precision pipeline defect detection equipment based on magnetic leakage |
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| CN212622394U true CN212622394U (en) | 2021-02-26 |
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| CN202021503122.XU Active CN212622394U (en) | 2020-07-27 | 2020-07-27 | High-precision pipeline defect detection equipment based on magnetic leakage |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113970554A (en) * | 2021-11-03 | 2022-01-25 | 重庆交通大学 | Inhaul cable defect detection device and inhaul cable defect detection method |
| CN113970554B (en) * | 2021-11-03 | 2024-06-07 | 重庆交通大学 | Cable defect detection device and cable defect detection method |
-
2020
- 2020-07-27 CN CN202021503122.XU patent/CN212622394U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113970554A (en) * | 2021-11-03 | 2022-01-25 | 重庆交通大学 | Inhaul cable defect detection device and inhaul cable defect detection method |
| CN113970554B (en) * | 2021-11-03 | 2024-06-07 | 重庆交通大学 | Cable defect detection device and cable defect detection method |
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