CN211574789U - Automatic walking device for detecting and magnetizing magnetic flux leakage of pipeline - Google Patents

Automatic walking device for detecting and magnetizing magnetic flux leakage of pipeline Download PDF

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Publication number
CN211574789U
CN211574789U CN201922484434.4U CN201922484434U CN211574789U CN 211574789 U CN211574789 U CN 211574789U CN 201922484434 U CN201922484434 U CN 201922484434U CN 211574789 U CN211574789 U CN 211574789U
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China
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pipeline
screw
magnetic flux
sliding rod
side plate
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CN201922484434.4U
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Chinese (zh)
Inventor
何莎
王小梅
张志东
喻建胜
陈文斌
王仕强
赵琪月
骆吉庆
李超
徐伟津
蒲俊旭
杨清贤
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China National Petroleum Corp
CNPC Chuanqing Drilling Engineering Co Ltd
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China National Petroleum Corp
CNPC Chuanqing Drilling Engineering Co Ltd
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Abstract

The utility model provides a pipeline magnetic leakage detects automatic running gear of magnetization. The device comprises: the magnetic flux leakage detector comprises a front travelling mechanism, a rack, a rear travelling mechanism and a magnetic flux leakage detector arranged on the rack which are sequentially connected. Wherein, the front end and the rear end of the frame are provided with a side plate, and the left end and the right end of each side plate are provided with a slideway; the front travelling mechanism and the rear travelling mechanism are identical in structure, the front travelling mechanism comprises a first screw and two front wheel diameter-changing assemblies arranged at two ends of the screw, each front wheel diameter-changing assembly is sequentially connected with a first diameter-changing adjusting piece, a first connecting piece and a front wheel, and the first diameter-changing adjusting piece can adjust the position by using the first screw and a slide way so as to adjust the distance between the front wheels; the magnetic leakage detector can detect the pipeline to be detected. The utility model discloses beneficial effect includes: the motor drive is adopted to replace manual drive to drive, so that the labor is saved; meanwhile, the defect magnetic leakage signal is transmitted in real time in a wireless mode, and can be displayed in real time.

Description

Automatic walking device for detecting and magnetizing magnetic flux leakage of pipeline
Technical Field
The utility model relates to a chemical industry pipeline magnetic leakage detection area especially relates to an automatic running gear who is used in pipeline magnetic leakage detection magnetization.
Background
Petrochemical industry is a special industry, and the medium in the device is inflammable, explosive, toxic and harmful. Therefore, petrochemical engineering construction has characteristics of the petrochemical engineering construction, and the petrochemical pipeline detection standard is required to have pertinence.
The media transported by oil and gas pipelines mostly contain corrosive impurities, which erode the inner surface of the pipeline for a long time. In addition, oil and gas pipelines are mostly buried underground and laid, certain damage can be caused to the pipelines due to factors such as construction and geological settlement, and the environment where the pipelines are located is humid and can corrode the outer surfaces of the pipelines to a certain degree. Therefore, for the oil and gas pipeline which operates for a long time, regular inspection must be carried out according to the standard so as to eliminate potential safety hazards existing in the pipeline and ensure the safe operation of the oil and gas pipeline.
The pipeline magnetic leakage detection can identify the type of the pipeline defect, quantizes the size of the defect, is beneficial to early maintenance, reduces the occurrence of accidents, and plays an important role in ensuring the safe operation of the pipeline, particularly the long-distance pipeline. The pipeline magnetic flux leakage detection has high working efficiency and accurate detection data, is convenient for comprehensively knowing the conditions of pipeline corrosion, mechanical damage and the like, and has important significance for evaluating the service life of the pipeline, determining a corrosion inhibition plan and the like. However, there is a problem that the magnetization head is required to provide a sufficiently large magnetization if a detection signal capable of clearly distinguishing the defect is to be obtained. This also results in that the magnetic attraction force between the leakage flux detecting apparatus and the pipe to be inspected is excessively large and it is difficult to drive the leakage flux detecting apparatus. Therefore, it is necessary to design a device capable of realizing automatic walking of the pipeline magnetic flux leakage detection device.
SUMMERY OF THE UTILITY MODEL
To the not enough that exist among the prior art, the utility model aims to solve one or more problems that exist among the above-mentioned prior art. For example, one of the purposes of the present invention is to provide an automatic walking device for detecting magnetization of pipeline leakage flux to solve the problem of difficulty in walking of pipeline leakage flux detector driven by manpower.
In order to realize the purpose, the utility model provides a pipeline magnetic leakage detects automatic walking of magnetization. The apparatus may comprise: the magnetic flux leakage detector comprises a front travelling mechanism, a rack, a rear travelling mechanism and a magnetic flux leakage detector arranged on the rack, wherein the front end of the rack is provided with a front side plate and a front baffle, the rear end of the rack is provided with a rear side plate and a rear baffle, two plate surfaces of each side plate respectively face the front and the rear of the rack, the left end and the right end of each side plate are provided with a slide way, the front baffle is positioned in the middle of the plate surface of the front side plate facing the front of the rack and is provided with a first through hole, the rear baffle is positioned in the middle of the plate surface of the rear side plate facing the rear of the rack and is provided with a second through hole, and two opening directions of the first through hole and the second through hole respectively; the front travelling mechanism comprises a first screw and two front wheel reducing assemblies respectively arranged at two ends of the first screw, the first screw can penetrate through a first through hole, threads are arranged at two ends of the first screw, each front wheel reducing assembly comprises a first reducing adjusting part, a first connecting part and a front wheel which are sequentially connected, each first reducing adjusting part comprises a first sliding rod and a first adjusting nut which are connected, the first sliding rod can be inserted into a slide way of the front side plate and can drive the first adjusting nut to slide along the slide way, the first adjusting nut can be matched with the threads on the corresponding end of the first screw and can be screwed into the corresponding end, the first connecting part can be fixedly connected with the first sliding rod or the first adjusting nut, and the front wheel can roll along the surface of a pipeline to be measured; the rear travelling mechanism comprises a second screw and two rear wheel diameter-changing assemblies respectively arranged at two ends of the second screw, the second screw can penetrate through a second through hole, threads are arranged at two ends of the second screw, each rear wheel diameter-changing assembly comprises a second diameter-changing adjusting part, a second connecting part and a rear wheel which are sequentially connected, each second diameter-changing adjusting part comprises a second sliding rod and a second adjusting nut which are connected, the second sliding rod can be inserted into a sliding way of the rear side plate and can drive the second adjusting nut to slide along the sliding way, the second adjusting nut can be matched with the threads on the corresponding end of the second screw and can be screwed into the corresponding end, the second connecting part can be fixedly connected with the second sliding rod or the second adjusting nut, and the rear wheel can roll along the surface of a measured pipeline; the magnetic leakage detector can detect the pipeline to be detected.
According to an exemplary embodiment of the present invention, the magnetic leakage detector may include a sensing assembly and a plurality of sets of magnetizing assemblies, wherein the sensing assembly includes a sensor; each group of magnetizing assemblies comprises an armature module, a magnet module and a pole shoe module which are arranged from top to bottom in sequence.
According to an exemplary embodiment of the present invention, under the condition that the number of the magnetization assemblies is greater than 1, the plurality of sets of magnetization assemblies can be sequentially arranged in the frame from left to right, the pole shoe module can include two pole shoes, the magnet module can include two magnets, the armature module can include an armature, wherein, two pole shoes of each magnetization assembly are respectively arranged at the front and rear two side positions in the frame, two magnets are respectively arranged on the two pole shoes, and an armature is arranged on the two magnets.
According to an exemplary embodiment of the present invention, a certain gap may be provided between the magnet and the pole shoe located at the front side of the frame and the magnet and the pole shoe located at the rear side of the frame, and the sensor is disposed in the gap.
According to an exemplary embodiment of the present invention, each armature may be provided at a middle portion thereof with a plurality of through holes, the device may further include a height adjustment assembly, which may include a plurality of height adjustment screws and a plurality of height adjustment nuts, wherein the height adjustment screws and the through holes have the same number and may correspond one to one, each height adjustment screw may be inserted into the corresponding through hole, and a lower end thereof is fixedly connected to the sensor; the height adjusting nuts and the height adjusting screw rods are the same in quantity and can correspond to one another, and each height adjusting nut can be screwed in from the upper end of the corresponding height adjusting screw rod and abuts against the armature to fix the height distance between the sensor and the pipeline to be measured.
According to the utility model discloses an exemplary embodiment, every can all be provided with a driving motor on the preceding wheel in the front wheel reducing subassembly, every also can all be provided with a driving motor on the rear wheel in the rear wheel reducing subassembly.
According to an exemplary embodiment of the present invention, the automatic walking device may further include a motor controller and a battery, wherein the motor controller and the battery may be installed on the armature module, and the motor controller may be connected to each driving motor through a wire; the battery can be connected with the motor controller through a wire.
According to an exemplary embodiment of the present invention, the battery may include a lithium battery.
According to an exemplary embodiment of the present invention, the first sliding rod may be provided with a thread, and the first reducing adjustment member may include a first fixing nut, an inner thread of which is adapted to the thread of the first sliding rod and can fix the first sliding rod to the front side plate; the second sliding rod can be provided with threads, the second reducing adjusting piece can comprise a second fixing nut, the inner threads of the second fixing nut are matched with the threads on the second sliding rod, and the second sliding rod can be fixed on the rear side plate.
According to the utility model discloses an exemplary embodiment, leading running gear still can be including the third connecting piece and the middle front wheel that are connected, and the third connecting piece can be connected with preceding fender piece, and the middle front wheel can be followed and is surveyed the surface roll of pipeline.
According to the utility model discloses an exemplary embodiment, rearmounted running gear is still including the fourth connecting piece and the middle rear wheel that are connected, and the fourth connecting piece can be connected with the back separation blade, and middle rear wheel can be followed the surface roll of being surveyed the pipeline.
Compared with the prior art, the beneficial effects of the utility model can include: the motor drive is adopted to replace manual drive for driving, so that the labor is saved, and the stability and the accuracy of the motion of the detection equipment are ensured; meanwhile, the defect magnetic leakage signal is transmitted in a wireless real-time mode, and the position and the severity of the defect on the pipeline can be judged in real time.
Drawings
The above and other objects and features of the present invention will become more apparent from the following description taken in conjunction with the accompanying drawings, in which:
fig. 1 shows a schematic structural view of the automatic walking device of the present invention;
FIG. 2 shows an enlarged schematic view of a portion of the structure of FIG. 1;
fig. 3 is a schematic front view of the automatic walking device of the present invention;
fig. 4 is a right-side schematic view of the automatic walking device of the present invention;
fig. 5 is a schematic top view of the automatic walking device of the present invention.
Description of the main reference numerals:
110-front side plate, 111-slideway and 120-sub baffle plate; 210-a first screw, 221 a-a first sliding rod, 221 b-a first adjusting nut, 222-a first connecting piece, 223-a front wheel; 310-armature, 320-magnet, 330-pole piece; 410-sensor cartridge, 420-height adjustment screw; 510-drive motor, 520-motor controller, 530-battery; 600-a wire; 1000-measured pipe.
Detailed Description
Hereinafter, the magnetic flux leakage detection magnetization traveling device according to the present invention will be described in detail with reference to the accompanying drawings and exemplary embodiments.
Fig. 1 shows a schematic structural view of the automatic walking device of the present invention. Fig. 2 shows an enlarged schematic view of a part of the structure of fig. 1. Fig. 3 shows a schematic front view of the automatic walking device of the present invention. Fig. 4 shows a right-view schematic diagram of the automatic walking device of the present invention. Fig. 5 is a schematic top view of the automatic walking device of the present invention.
In an exemplary embodiment of the present invention, the magnetic flux leakage detection and magnetization automatic walking device for a pipeline may include:
the magnetic flux leakage detector comprises a front travelling mechanism, a rack, a rear travelling mechanism, a magnetic flux leakage detector and a driving assembly which are connected in sequence. The structure of the front travelling mechanism and the structure of the rear travelling mechanism can be the same or similar. The magnetic leakage detector can be arranged on the machine frame.
As shown in fig. 2 and 4, the front end of the housing may be provided with a front side plate 110 and a front stopper. The rear end of the frame can also be provided with a rear side plate and a rear baffle plate, the structures of the rear side plate and the front side plate can be the same or similar, and the structure and the position of the rear baffle plate can also be the same or similar to those of the front baffle plate.
Front side plate 110, front stop and front running gear are taken as examples:
both plate surfaces of the front side plate 110 may face the front and rear of the rack, respectively. As shown in fig. 2, both ends of the front side plate 110 may be opened with slide rails 111, and the two slide rails 111 may have the same structure. The shape of the slideway 111 can be an arc, and the circle center corresponding to the arc faces the pipeline. Preceding separation blade can be located the intermediate position of preceding curb plate 110 towards the face in frame the place ahead to seted up first through-hole, two opening directions of first through-hole are towards the left and right sides direction of frame respectively. As shown in fig. 1, the front blocking piece may include two sub-blocking pieces 120, and both the sub-blocking pieces 120 may be provided with one sub-through hole. The front blocking piece can fix the first screw 210 to a certain extent.
As shown in fig. 2 and 4, the front traveling mechanism includes a first screw 210 and two front wheel diameter-changing assemblies respectively disposed at two ends of the first screw 210. The two front wheel diameter-changing assemblies may have the same structure and may respectively correspond to the two sliding ways of the front side plate 110. As shown in fig. 4, the first screw 210 can pass through the first through hole and both ends of the first screw 210 are provided with threads, and both ends of the first screw 210 can correspond to the two front wheel reducing sets one to one. Each front wheel assembly may include a first diameter changing adjuster, a first connector 222, and a front wheel 223 connected in sequence. As shown in fig. 2, the first diameter-changing adjusting part may include a first sliding rod 221a and a first adjusting nut 221b connected to each other. The first sliding rod 221a can be inserted into one of the sliding ways 111 of the front side plate 110 and can drive the first adjusting nut 221b to slide along the sliding way, and the first adjusting nut 221b can be matched with the thread on the corresponding end of the first screw rod 210 and can be screwed into the corresponding end. As shown in fig. 4, the first connector 222 can be fixedly connected to the first diameter-changing adjuster 221, for example, the first sliding rod 221 a. The front wheels 223 can roll along the surface of the pipe 1000 under test. Both ends of the first screw 210 may also be referred to as two screw segments, i.e., both the left and right of the first screw 210 may be screw segments. The length of the threaded section may be no more than half of the length of the first screw shank.
The magnetic leakage detector may include a sensing assembly and a plurality of sets of magnetizing assemblies. The magnetizing assembly can comprise an armature module, a magnet module and a pole shoe module which are sequentially arranged from top to bottom. Wherein, sensing component can include sensor box or sensor, is provided with the sensor in the sensor box. The armature module may include several armatures; the magnet module may comprise a plurality of magnets; the pole shoe module may comprise a number of pole shoes. Wherein, armature can play the magnetic conduction effect, and magnet can produce magnetic field, and the pole shoe can even magnetic field distribution, and the sensor can gather the magnetic leakage signal that the pipeline defect produced. Further, the device can also comprise a wireless transmitting component connected with the sensor so as to transmit the signal detected by the magnetic leakage detector to the outside in a wireless mode.
As shown in fig. 5, the drive assembly may include 4 drive motors 510, 1 motor controller 520, and 1 battery 530. Wherein, 2 front wheels and 2 rear wheels can mate 1 driving motor 510 respectively for 4 wheels can realize automatic walking under driving motor 510's drive. The motor controller 520 and the battery 530 may be both disposed on the housing or on top of the magnetic flux leakage detector on the housing, for example on top of two armatures, respectively.
In this embodiment, the armature, magnet and pole piece modules may be mounted directly on the frame. The pole shoes may be in direct contact with the pipe.
In this embodiment, the first sliding rod 221a may be provided with a thread thereon, and the first diameter-changing adjusting part may further include a first fixing nut. The internal thread of the first fixing nut is matched with the thread on the first sliding rod. After the first sliding rod is inserted into the slideway and the position of the first sliding rod in the slideway is determined, the first fixing nut can be screwed into the first sliding rod on the back surface (namely the surface facing the rear of the machine frame) of the front side plate and is abutted against the front side plate to fix the first sliding rod.
Similarly, the second sliding rod can also be provided with a corresponding second fixing nut.
In this embodiment, the sensor cartridge 410 may adopt a following structure, so as to accurately follow or reset the detection process of the detection device on the pipeline.
In this embodiment, sensor box 410 can also be connected with the outer computer of check out test set to can go out and signal waveform shows in real time with realizing that data is wireless real-time based on industry WIFI or bluetooth, can judge defect position and severity on the pipeline in real time, and can distinguish true and false defect.
In this embodiment, the device may further comprise a height adjustment assembly, which may comprise a number of height adjustment screws 420. The number of the height adjusting screws 420 may be at least 1, and specifically, may be determined according to actual circumstances. The armature may be provided with a longitudinally through bore for passage of the height adjustment screw 420.
As shown in fig. 3, the lower end of the height adjusting screw 420 and the sensor box 410 may be connected together, and the distance between the sensor box 410 and the detected pipe may be adjusted to achieve the optimal sensing effect. The height adjusting screw 420 may be provided with a nut, and the nut may be screwed in from the upper end of the height adjusting screw 420, and may realize fixation between the height adjusting screw 420 and the position of the armature, thereby realizing adjustment of the distance between the sensor cartridge 410 and the measured pipe 1000. Before the detection starts, the sensor box 410 may be placed on the pipe 1000 to be detected, and after the radian is adjusted, the distance between the sensor box and the pipe is adjusted to a proper height.
In this embodiment, different numbers of magnetizing assemblies can be provided according to the size of the pipe diameter. For example, the number of magnetized components may be 3 groups, each group including 1 armature 310, 2 magnets 320, and 2 pole pieces 330. As shown in fig. 3, 2 magnets 320 may be disposed under both ends of the armature 310, and 2 pole pieces may be disposed under both magnets 320. The armature 310 and the magnet 320 may be bonded by using an oxygen compression adhesive, and the magnet 320 and the pole piece 330 may also be bonded by using an oxygen compression adhesive.
Further, the length and width dimensions of the magnets 320 and the pole pieces 330 may be the same, so that, as shown in fig. 3, a space (also referred to as a gap) is formed between the magnets 320 and 330 at the front side of the housing and the magnets 320 and 330 at the rear side of the housing, and the sensor cartridge 410 may be disposed in the space. The through-hole provided on the armature 310 may be located at a middle position thereof to facilitate the connection of the sensor housing 410 with the height adjustment screw 420.
In the present embodiment, as shown in fig. 1 and 5, the battery 530 and the motor controller 520 may be mounted on the both side armatures, respectively. The motor controller 520 is connected to the battery 530 and the driving motors 510 by wires, for example, as shown in fig. 1 and 5, and the motor controller 520 is connected to the four driving motors 510 by wires 600. The on-off of the driving motor 510 can be controlled through a control button on the motor controller 520, the steering of the motor can be controlled, the driving motor 510 is connected with the pipeline wheel, and the automatic forward and backward movement of the detection equipment on the detected pipeline can be controlled. The battery 530 may be powered by an explosion-proof lithium battery to ensure personal and equipment safety. The utility model discloses can adopt four wheel drive, adopt automatic algorithm of rectifying simultaneously, can guarantee that check out test set can the straight line walking on the pipeline.
In this embodiment, the reducing adjustment screw (also referred to as a first screw) 210 may pass through the front blade while engaging the pipe reducing adjustment nut (also referred to as a first adjustment nut) 211 b. The matching degree can be adjusted with reducing adjusting nut 211b to reducing adjusting screw 210 to can adjusting device's expansion degree, finally can reach the purpose of carrying out the magnetic leakage scanning to the pipeline of different pipe diameters. The utility model discloses an adjusting structure of reducing subassembly has utilized the mechanical screw transmission, and simple structure easily operates, can increase the flexibility to the adaptation of different pipe diameters in the testing process moreover.
In this embodiment, the utility model discloses the material of wheel that adopts can be for resistant oily polyurethane, not only can play the wear-resisting effect of antiskid like this, can also ensure that detection device can normally walk on the pipeline to and guarantee the live time of wheel.
To sum up, the utility model discloses a but pipeline magnetic leakage detects automatic running gear of magnetization's advantage includes:
(1) the utility model discloses install driving motor on the pipeline wheel, under the mating reaction of machine controller and battery, can let driving motor drive pipeline wheel move, realize advancing and retreating of check out test set.
(2) The utility model discloses can adopt wireless real-time transmission to defect magnetic leakage signal, can judge the position and the severity of defect on the pipeline in real time.
(3) The utility model discloses utilize motor drive to replace manual drive to travel, guaranteed the stationarity and the accuracy of check out test set's motion when having saved the manpower.
(4) The utility model discloses a device is applicable to all straight pipeline corrosion defect's magnetic leakage and detects, and application scope is wide, the prospect is good.
Although the present invention has been described above in connection with exemplary embodiments, it will be apparent to those skilled in the art that various modifications and changes may be made to the exemplary embodiments of the present invention without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (10)

1. The utility model provides a pipeline magnetic leakage detects automatic running gear of magnetization, its characterized in that, the device includes: a front walking mechanism, a frame, a rear walking mechanism and a magnetic flux leakage detector arranged on the frame which are connected in sequence,
the front end of the rack is provided with a front side plate and a front blocking piece, the rear end of the rack is provided with a rear side plate and a rear blocking piece, two plate surfaces of each side plate face the front and the rear of the rack respectively, the left end and the right end of each side plate are provided with slideways, the front blocking piece is positioned in the middle of the plate surface of the front side plate facing the front of the rack and is provided with a first through hole, the rear blocking piece is positioned in the middle of the plate surface of the rear side plate facing the rear of the rack and is provided with a second through hole, and two opening directions of the first through hole and the second through hole face the;
the front travelling mechanism comprises a first screw and two front wheel reducing assemblies respectively arranged at two ends of the first screw, the first screw can penetrate through a first through hole, threads are arranged at two ends of the first screw, each front wheel reducing assembly comprises a first reducing adjusting part, a first connecting part and a front wheel which are sequentially connected, each first reducing adjusting part comprises a first sliding rod and a first adjusting nut which are connected, the first sliding rod can be inserted into a slide way of the front side plate and can drive the first adjusting nut to slide along the slide way, the first adjusting nut can be matched with the threads on the corresponding end of the first screw and can be screwed into the corresponding end, the first connecting part can be fixedly connected with the first sliding rod or the first adjusting nut, and the front wheel can roll along the surface of a pipeline to be measured;
the rear travelling mechanism comprises a second screw and two rear wheel diameter-changing assemblies respectively arranged at two ends of the second screw, the second screw can penetrate through a second through hole, threads are arranged at two ends of the second screw, each rear wheel diameter-changing assembly comprises a second diameter-changing adjusting part, a second connecting part and a rear wheel which are sequentially connected, each second diameter-changing adjusting part comprises a second sliding rod and a second adjusting nut which are connected, the second sliding rod can be inserted into a sliding way of the rear side plate and can drive the second adjusting nut to slide along the sliding way, the second adjusting nut can be matched with the threads on the corresponding end of the second screw and can be screwed into the corresponding end, the second connecting part can be fixedly connected with the second sliding rod or the second adjusting nut, and the rear wheel can roll along the surface of a measured pipeline;
the magnetic leakage detector can detect the pipeline to be detected.
2. The automatic walking device for magnetic flux leakage detection and magnetization of pipeline according to claim 1, wherein said magnetic flux leakage detector comprises a sensing assembly and a plurality of sets of magnetization assemblies, wherein,
the sensing assembly comprises a sensor;
each group of magnetizing assemblies comprises an armature module, a magnet module and a pole shoe module which are arranged from top to bottom in sequence.
3. The automatic walking device for pipeline magnetic flux leakage detection and magnetization according to claim 2, wherein in case that the number of the magnetization components is greater than 1, a plurality of groups of the magnetization components are sequentially disposed on the machine frame from left to right, the pole shoe module comprises two pole shoes, the magnet module comprises two magnets, and the armature module comprises an armature, wherein,
two pole shoes of each magnetizing assembly are respectively arranged at the front side and the rear side of the rack, two magnets are respectively arranged on the two pole shoes, and an armature is arranged on the two magnets.
4. The automatic walking device for pipeline magnetic flux leakage detection and magnetization according to claim 3, wherein a gap is formed between the magnet and the pole shoe located on the front side of the rack and the magnet and the pole shoe located on the rear side of the rack, and the sensor is arranged in the gap.
5. The automatic walking device for pipeline magnetic flux leakage detection and magnetization according to claim 4, wherein a plurality of through holes are formed in the middle of each armature, the device further comprises a height adjusting assembly, the height adjusting assembly comprises a plurality of height adjusting screws and a plurality of height adjusting nuts, wherein,
the height adjusting screws and the through holes are the same in number and can be in one-to-one correspondence, each height adjusting screw can be inserted into the corresponding through hole, and the lower end of each height adjusting screw is fixedly connected with the sensor;
the height adjusting nuts and the height adjusting screw rods are the same in quantity and can correspond to one another, and each height adjusting nut can be screwed in from the upper end of the corresponding height adjusting screw rod and abuts against the armature to fix the height distance between the sensor and the pipeline to be measured.
6. The automatic walking device for pipeline magnetic flux leakage detection and magnetization according to claim 1, wherein a driving motor is arranged on a front wheel of each front wheel reducing assembly, and a driving motor is arranged on a rear wheel of each rear wheel reducing assembly.
7. The magnetic flux leakage detection and magnetization automatic traveling device for a pipeline according to claim 2, further comprising a motor controller and a battery, wherein,
the motor controller and the battery can be arranged on the armature module, and the motor controller can be connected with each driving motor through a lead; the battery can be connected with the motor controller through a wire.
8. The automatic walking device for pipeline magnetic flux leakage detection and magnetization according to claim 7, wherein the first sliding rod is provided with threads, the first diameter-changing adjusting part comprises a first fixing nut, and the internal threads of the first fixing nut are matched with the threads on the first sliding rod and can fix the first sliding rod on the front side plate;
the second sliding rod is provided with threads, the second variable-diameter adjusting part comprises a second fixing nut, the internal threads of the second fixing nut are matched with the threads on the second sliding rod, and the second sliding rod can be fixed on the rear side plate.
9. The automatic walking device for pipeline magnetic flux leakage detection and magnetization according to claim 1, wherein the front walking mechanism further comprises a third connecting piece and a middle front wheel, the third connecting piece is connected with the front baffle, and the middle front wheel can roll along the surface of the pipeline to be detected.
10. The automatic walking device for pipeline magnetic flux leakage detection and magnetization according to claim 1, wherein the rear walking mechanism further comprises a fourth connecting piece and a middle rear wheel, the fourth connecting piece and the middle rear wheel are connected, the fourth connecting piece can be connected with the rear baffle, and the middle rear wheel can roll along the surface of the pipeline to be detected.
CN201922484434.4U 2019-12-31 2019-12-31 Automatic walking device for detecting and magnetizing magnetic flux leakage of pipeline Active CN211574789U (en)

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Application Number Priority Date Filing Date Title
CN201922484434.4U CN211574789U (en) 2019-12-31 2019-12-31 Automatic walking device for detecting and magnetizing magnetic flux leakage of pipeline

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Application Number Priority Date Filing Date Title
CN201922484434.4U CN211574789U (en) 2019-12-31 2019-12-31 Automatic walking device for detecting and magnetizing magnetic flux leakage of pipeline

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113030246A (en) * 2020-12-14 2021-06-25 陕西泰诺特检测技术有限公司 Pipeline outer wall magnetic leakage detector

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113030246A (en) * 2020-12-14 2021-06-25 陕西泰诺特检测技术有限公司 Pipeline outer wall magnetic leakage detector
CN113030246B (en) * 2020-12-14 2024-04-09 陕西泰诺特检测技术有限公司 Magnetic leakage detector for outer wall of pipeline

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