CN212748804U - Floated magnetic leakage detection module - Google Patents
Floated magnetic leakage detection module Download PDFInfo
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- CN212748804U CN212748804U CN202021192353.3U CN202021192353U CN212748804U CN 212748804 U CN212748804 U CN 212748804U CN 202021192353 U CN202021192353 U CN 202021192353U CN 212748804 U CN212748804 U CN 212748804U
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- leakage detection
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- flux leakage
- magnet module
- magnetic flux
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Abstract
The utility model provides a floated magnetic leakage detection module, include: the magnetic flux leakage detection mechanism is used for detecting the defects of the pipe wall; suspension coupling mechanism, magnetic leakage detection mechanism link to each other with the detector support through suspension coupling mechanism, and suspension coupling mechanism is used for making magnetic leakage detection mechanism can float inside and outside along with the pipe diameter changes. The suspension connecting mechanism of the utility model enables the magnetic flux leakage detection mechanism to realize the actions of reducing and recovering to open, and enables the detection box to be attached to the detected surface as much as possible, thereby improving the detection precision; the detection box utilizes the auxiliary suspension mechanism, so that the fitting property of the detection box and the detected surface can be further improved, and the detection precision is further improved; the roller can reduce the running resistance, thereby reducing the detection energy consumption.
Description
Technical Field
The utility model relates to a detector technical field especially relates to a floated magnetic leakage detection module in the pipeline.
Background
The pipeline is an important mode for long-distance transportation of petroleum and natural gas, the pipeline works under high pressure, long distance and severe external environment, various defects are generated on the pipe wall due to various reasons such as transmission medium corrosion, stress, construction damage, natural disasters and the like, the defects have great harmfulness to the safe operation of the pipeline, and early detection of the defects is an important means for maintaining the maintenance work of the pipeline and the integrity of the pipeline. At present, a common in-service detection method for pipeline defects is an in-pipeline detection technology, in particular a magnetic flux leakage detection technology.
The magnetic leakage detection means that after the ferromagnetic material is magnetized, a magnetic leakage field is formed on the surface of the ferromagnetic material due to the defects on the detected surface or the near surface, a magnetic induction sensor such as a Hall sensor is used for obtaining a magnetic leakage field signal, then the magnetic leakage field signal is sent to a computer for signal processing, and the magnetic flux density component of the magnetic leakage field is analyzed so that the corresponding defect characteristics such as position, width, depth and the like can be further known.
Most of the existing reducing magnetic leakage detectors only realize the reducing function at parts such as a walking mechanism, a guiding mechanism and the like, and a detection mechanism of the existing reducing magnetic leakage detectors still keeps fixed with a detector support when in use, so that the distance between a magnet module and a detected surface is changed when the pipe diameter of a detected object is changed, a closed magnetic loop formed by the magnet, the pipe wall and a magnetic conduction module is changed, and the detection precision of a detection box is greatly reduced in the mode.
Disclosure of Invention
The utility model discloses aim at solving prior art not enough, and provide a floated magnetic leakage detection module.
The utility model discloses a realize above-mentioned purpose, adopt following technical scheme:
a suspended flux leakage detection module, comprising:
the magnetic flux leakage detection mechanism is used for detecting the defects of the pipe wall;
suspension coupling mechanism, magnetic leakage detection mechanism link to each other with the detector support through suspension coupling mechanism, and suspension coupling mechanism is used for making magnetic leakage detection mechanism can float inside and outside along with the pipe diameter changes.
Further, magnetic leakage detection mechanism includes the magnetic conduction module, and the outside both ends of magnetic conduction module have set firmly anterior magnet module and rear portion magnet module respectively, are equipped with between anterior magnet module and the rear portion magnet module and detect the box.
Further, the detection box is connected with the front magnet module and the rear magnet module through an auxiliary suspension mechanism.
Furthermore, supplementary suspension mechanism is including setting up the slide on anterior magnet module and rear portion magnet module, and the detection box is equipped with the sliding shaft with the slide cooperation, and the detection box inboard is equipped with a plurality of compression springs that are used for pushing the detection box to the outside, and compression spring's both ends offset with magnetic conduction module and detection box respectively.
Further, suspension coupling mechanism includes preceding movable part and back movable part, and preceding movable part links to each other with the preceding shaft coupling and the anterior magnet module of detector support, and back movable part links to each other with the back shaft coupling and the rear portion magnet module of detector support.
Furthermore, the front movable part comprises a support, the support is fixedly connected with a front coupler of the detector support, a pulling plate is arranged between the support and the front magnet module, one end of the pulling plate is hinged to the support through a first pin shaft, the other end of the pulling plate is hinged to the front magnet module through a second pin shaft, and a front elastic mechanism is connected to the pulling plate and is convenient for supporting the front magnet module to the outer side.
Further, the one end that the tractive board links to each other with the support extends has swing arm and swing arm tip to articulate through four round pins has the pull rod, has set firmly the limiting plate on the support, and the pull rod runs through the limiting plate setting, and preceding elastic mechanism is preceding spring, and preceding spring housing is established in the pull rod outside, and the one end of preceding spring offsets with the limiting plate and the other end carries on spacingly through the lock nut of pull rod tip.
Furthermore, the front elastic mechanism is a torsion spring which is positioned at the first pin shaft.
Furthermore, the rear elastic mechanism is of an elastic sleeve structure, and two ends of the elastic sleeve structure are respectively hinged with the rear coupler and the rear magnet module of the detector support.
Furthermore, the elastic sleeve structure comprises a first barrel, one end of the first barrel is closed, the closed end of the first barrel is hinged to the rear magnet module through a third pin shaft, a second barrel is arranged in the inner cavity of the first barrel in a sliding mode, one end, located outside the first barrel, of the second barrel is hinged to a rear coupler of the detector support, a limiting convex edge is arranged on the outer wall of one end, located in the inner cavity of the first barrel, of the second barrel in a matching mode and on the inner wall of an opening of the first barrel in a matching mode, a rear spring is arranged in the inner cavity of the first barrel, and two ends of.
Furthermore, the second pin shaft and the third pin shaft are both rotatably provided with rollers 5 which are convenient for reducing the advancing resistance.
The utility model has the advantages that: the suspension connecting mechanism of the utility model enables the magnetic flux leakage detection mechanism to realize the actions of reducing and recovering to open, and enables the detection box to be attached to the detected surface as much as possible, thereby improving the detection precision; the detection box utilizes the auxiliary suspension mechanism, so that the fitting property of the detection box and the detected surface can be further improved, and the detection precision is further improved; the roller can reduce the running resistance, thereby reducing the detection energy consumption.
Drawings
Fig. 1 is a front view of the present invention;
FIG. 2 is a schematic structural view of an elastic sleeve structure;
in the figure: 1-a detector support; 2-a scaffold; 3, a first pin shaft; 4-pulling plates; 5-a roller; 6-pin shaft II; 7-front magnet module; 8-a sliding shaft; 9-a detection kit; 10-a compression spring; 11-rear magnet module; 12-a magnetic conducting module; 13-pin shaft III; 14-cylinder one; 15-cylinder two; 16-pin shaft four; 17-a pull rod; 18-a front spring; 19-a stop nut; 20-rear spring;
the following detailed description will be made in conjunction with embodiments of the present invention with reference to the accompanying drawings.
Detailed Description
The invention will be further described with reference to the following examples:
a suspended flux leakage detection module, comprising:
the magnetic flux leakage detection mechanism is used for detecting the defects of the pipe wall;
the magnetic flux leakage detection mechanism is connected with the detector support 1 through the suspension connection mechanism, and the suspension connection mechanism is used for enabling the magnetic flux leakage detection mechanism to float inside and outside along with the change of the pipe diameter.
Further, magnetic leakage detection mechanism includes magnetic conduction module 12, and the outside both ends of magnetic conduction module 12 set firmly anterior magnet module 7 and rear portion magnet module 11 respectively, are equipped with between anterior magnet module 7 and the rear portion magnet module 11 and detect box 9.
Further, the cartridge 9 is connected to the front magnet module 7 and the rear magnet module 11 through an auxiliary levitation mechanism.
Further, supplementary suspension mechanism is including setting up the slide on anterior magnet module 7 and rear portion magnet module 11, and detection box 9 is equipped with sliding shaft 8 with the slide cooperation, and detection box 9 inboard is equipped with a plurality of compression spring 10 that are used for pushing away detection box 9 to the outside, and compression spring 10's both ends offset with magnetic conduction module 12 and detection box 9 respectively.
Further, suspension coupling mechanism includes preceding movable part and back movable part, and preceding movable part links to each other with the preceding shaft coupling of detector support 1 and anterior magnet module 7, and back movable part links to each other with the back shaft coupling of detector support 1 and rear portion magnet module 11.
Further, preceding movable part includes support 2, support 2 and detector support 1's preceding shaft coupling fixed connection, is equipped with tractive board 4 between support 2 and the anterior magnet module 7, and the one end of tractive board 4 is articulated with support 2 through round pin axle one 3 and the other end is articulated with anterior magnet module 7 through round pin axle two 6, even has preceding elastic mechanism on the tractive board 4, is convenient for prop anterior magnet module 7 to the outside.
Furthermore, the swing arm is extended from one end of the pulling plate 4 connected with the support 2, the end part of the swing arm is hinged with a pull rod 17 through a pin shaft four 16, a limiting plate is fixedly arranged on the support 2, the pull rod 17 penetrates through the limiting plate, the front elastic mechanism is a front spring 18, the front spring 18 is sleeved on the outer side of the pull rod 17, one end of the front spring 18 abuts against the limiting plate, and the other end of the front spring is limited through a stop nut 19 at the end part of the pull rod 17.
Furthermore, the front elastic mechanism is a torsion spring which is positioned at the first pin shaft 3.
Furthermore, the rear elastic mechanism is an elastic sleeve structure, and two ends of the elastic sleeve structure are respectively hinged with the rear coupler of the detector support 1 and the rear magnet module 11.
Furthermore, the elastic sleeve structure comprises a first barrel 14, one end of the first barrel 14 is closed, the closed end is hinged to the rear magnet module 11 through a third pin shaft 13, a second barrel 15 is arranged in the inner cavity of the first barrel 14 in a sliding mode, one end, located outside the first barrel 14, of the second barrel 15 is hinged to the rear coupler of the detector support 1, a limiting convex edge is arranged on the outer wall of one end, located in the inner cavity of the first barrel 14, of the second barrel 15 in a matching mode and on the inner wall of an opening of the first barrel 14, a rear spring 20 is arranged in the inner cavity of the first barrel 14, and two ends of the rear spring 20 are abutted to limiting bosses of the inner end.
Furthermore, the second pin shaft 6 and the third pin shaft 13 are both rotatably provided with rollers 5 which are convenient for reducing the advancing resistance.
When the utility model is used, under the tensioning action of the front spring 18, the pull rod 17 is under the pulling force of one side far away from the swing arm, and the pull rod 17 pulls the traction plate 4 through the swing arm to jack the front end of the front magnet module 7 to the outside; the rear end of the rear magnet module 11 is also jacked outwards under the action of the elastic sleeve structure, and the detection box 9 can be attached to the inner wall of the detected pipeline as far as possible under the combined action of the rear magnet module and the elastic sleeve structure, so that the detection precision is improved, and the effect is more obvious particularly after welding seams, bulges or over-bending; the detection box 9 can also utilize an auxiliary suspension mechanism, so that the fitting property of the detection box and the detected surface can be further improved, and the detection precision is further improved.
When the inner diameter of the pipeline becomes smaller, the pipe wall presses the whole odd-even staggered magnetic flux leakage detection module to the inner side, the front spring 18 and the elastic sleeve structure are stressed and compressed to realize the reducing action of the detection box 9, the reducing action is eliminated after passing through, the front spring 18 and the elastic sleeve structure reset when external force is eliminated, and the detection box 9 is continuously ensured to be always attached to the inner wall of the detected pipeline.
The suspension connecting mechanism of the utility model can realize the reducing and restoring actions of the magnetic flux leakage detection mechanism, so that the detection box 9 can be attached to the detected surface as much as possible, thereby improving the detection precision; the detection box 9 utilizes an auxiliary suspension mechanism, so that the bonding property of the detection box and the detected surface can be further improved, and the detection precision is further improved; the rollers 5 are configured to reduce the traveling resistance, thereby reducing the detection power consumption.
The present invention has been described above with reference to the specific embodiments, and it is obvious that the present invention is not limited by the above-mentioned manner, and various improvements made by the method concept and technical solution of the present invention or directly applied to other occasions without improvement are all within the protection scope of the present invention.
Claims (10)
1. The utility model provides a floated magnetic leakage detection module which characterized in that includes:
the magnetic flux leakage detection mechanism is used for detecting the defects of the pipe wall;
the magnetic flux leakage detection mechanism is connected with the detector support (1) through the suspension connection mechanism, and the suspension connection mechanism is used for enabling the magnetic flux leakage detection mechanism to float inside and outside along with the change of the pipe diameter.
2. The suspended magnetic flux leakage detection module according to claim 1, wherein the magnetic flux leakage detection mechanism comprises a magnetic conduction module (12), a front magnet module (7) and a rear magnet module (11) are respectively and fixedly arranged at two ends of the outer side of the magnetic conduction module (12), and a detection box (9) is arranged between the front magnet module (7) and the rear magnet module (11).
3. The suspended flux leakage detection module according to claim 2, wherein the detection box (9) is connected to the front magnet module (7) and the rear magnet module (11) by an auxiliary suspension mechanism.
4. The suspended magnetic flux leakage detection module according to claim 3, wherein the auxiliary suspension mechanism comprises a slide way arranged on the front magnet module (7) and the rear magnet module (11), the detection box (9) is provided with a sliding shaft (8) in cooperation with the slide way, a plurality of compression springs (10) for pushing the detection box (9) to the outside are arranged on the inner side of the detection box (9), and two ends of each compression spring (10) respectively abut against the magnetic conduction module (12) and the detection box (9).
5. The suspended flux leakage detection module according to claim 1, wherein the suspended connection mechanism comprises a front movable portion and a rear movable portion, the front movable portion is connected with a front coupler of the detector bracket (1) and the front magnet module (7), and the rear movable portion is connected with a rear coupler of the detector bracket (1) and the rear magnet module (11).
6. The suspended magnetic flux leakage detection module according to any one of claims 2 to 5, wherein the front movable portion comprises a support (2), the support (2) is fixedly connected with a front coupler of the detector support (1), a pulling plate (4) is arranged between the support (2) and the front magnet module (7), one end of the pulling plate (4) is hinged to the support (2) through a first pin shaft (3), the other end of the pulling plate is hinged to the front magnet module (7) through a second pin shaft (6), and the pulling plate (4) is connected with a front elastic mechanism to support the front magnet module (7) outwards.
7. The suspended magnetic flux leakage detection module according to claim 6, wherein a swing arm extends from one end of the traction plate (4) connected with the support (2), the end of the swing arm is hinged with a pull rod (17) through a pin shaft four (16), a limiting plate is fixedly arranged on the support (2), the pull rod (17) penetrates through the limiting plate, the front elastic mechanism is a front spring (18), the front spring (18) is sleeved outside the pull rod (17), one end of the front spring (18) abuts against the limiting plate, and the other end of the front spring is limited through a stop nut (19) at the end of the pull rod (17).
8. The suspended magnetic flux leakage detection module according to claim 6, wherein the front elastic mechanism is a torsion spring, and the torsion spring is located at the first pin (3).
9. The suspended magnetic flux leakage detection module according to any one of claims 2 to 5, wherein the rear elastic mechanism is an elastic sleeve structure, and two ends of the elastic sleeve structure are respectively hinged with the rear coupler of the detector bracket (1) and the rear magnet module (11).
10. The suspended magnetic flux leakage detection module according to claim 9, wherein the elastic sleeve structure comprises a first barrel (14), one end of the first barrel (14) is closed, the closed end of the first barrel (14) is hinged to the rear magnet module (11) through a third pin shaft (13), a second barrel (15) is slidably arranged in an inner cavity of the first barrel (14), one end, located outside the first barrel (14), of the second barrel (15) is hinged to a rear coupler of the detector support (1), a limiting convex edge is arranged on an outer wall of one end, located inside the inner cavity of the first barrel (14), of the second barrel (15) and on an inner wall of an opening of the first barrel (14) in a matched mode, a rear spring (20) is arranged in the inner cavity of the first barrel (14), and two ends of the rear spring (20) are respectively abutted to limiting bosses of the inner end of the.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021192353.3U CN212748804U (en) | 2020-06-24 | 2020-06-24 | Floated magnetic leakage detection module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021192353.3U CN212748804U (en) | 2020-06-24 | 2020-06-24 | Floated magnetic leakage detection module |
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| Publication Number | Publication Date |
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| CN212748804U true CN212748804U (en) | 2021-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021192353.3U Active CN212748804U (en) | 2020-06-24 | 2020-06-24 | Floated magnetic leakage detection module |
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| CN (1) | CN212748804U (en) |
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- 2020-06-24 CN CN202021192353.3U patent/CN212748804U/en active Active
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