CN205449885U - Automatic magnetic particle testing device of pipe inner wall - Google Patents
Automatic magnetic particle testing device of pipe inner wall Download PDFInfo
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- CN205449885U CN205449885U CN201521108589.3U CN201521108589U CN205449885U CN 205449885 U CN205449885 U CN 205449885U CN 201521108589 U CN201521108589 U CN 201521108589U CN 205449885 U CN205449885 U CN 205449885U
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Abstract
The utility model provides an automatic magnetic particle testing device of pipe inner wall. It includes walking unit, power unit and detecting element, and power unit includes servo motor, gearbox, preceding axis of rotation and back axis of rotation, servo motor pass through the gearbox before can separately -driven the axis of rotation rotatory with the back axis of rotation, back axis of rotation is connected with walking unit and is transmitted power, detecting element fixed mounting in the axis of rotation, can wholly follow in the front preceding axis of rotation is rotated, and detecting element installs the universal wheel, axis of rotation drive after power unit passes through during the walking unit motion, can make detecting element follow whole device with the help of the universal wheel and sharply walk and monitor along the pipeline wall in the pipeline, when power unit was rotatory through the drive of preceding axis of rotation, whole device stopped the position that need detect in the pipeline, and only detecting element monitors along circular motion on the pipeline wall with the help of the universal wheel. The utility model discloses can centering minor diameter pipeline, the container inner wall carries out fluorescent magnetic particle in spection.
Description
Technical field
This utility model relates to a kind of medium-small diameter inner-walls of duct automatic Magnetic testing device, this device is mainly used in medium-small diameter pipeline or the detection of container inner wall fluorescentmagnetic particle(powder), it has caliber Automatic adjusument function, caliber change can be adapted to largely, it is mounted on pipe crawling device, driven by motor, can automatically carry out longitudinal direction and hoop detection work.
Background technology
At industrial pipeline processed owing to the factors such as, welding, heat treatment being affected by group, easily form the Dangerous defect such as root incomplete fusion, lack of penetration, crackle at inner-walls of duct face of weld, affecting due to pipe interior working media, operating pressure during life-time service with industrial pipeline, easily produce the Dangerous defects such as burn into crackle, inspection is installed with periodic inspection by inner-walls of duct weld seam is carried out fluorescentmagnetic particle(powder) detection, can accurately find with upper surface and near surface flaw.Current most of detection means, owing to being limited by space, can only carry out magnetic powder or ultrasound detection at pipeline outer wall, and inner wall defect recall rate is the lowest, thus cause defect missing inspection, leave potential safety hazard.The integrated system being applied to inner-walls of duct Magnetic testing is the rarest, inner-walls of duct detection device is to creep at pipe interior, and carry relevant implement device, the high-tech product of certain task is completed with different poses, it is the science and technology such as set machinery, control, sensing technology, detection technique the new technique product being applied to industrial process, but researcher is extremely limited to the research of inner-walls of duct Magnetic testing device both at home and abroad in recent years, it is difficult to meet the needs of pipe detection.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of inner-walls of duct automatic Magnetic testing device, it is especially applicable to the Magnetic testing of middle pipe with small pipe diameter inner-walls of duct, the change of caliber can be adapted in a big way, steadily walk at inner-walls of duct, pipeline longitudinal joint is carried out Magnetic testing, detection device circumferentially can rotate at inner-walls of duct, and pipeline circumferential weld carries out Magnetic testing, and by observing, shooting to testing result by video, picture by the way of carry out record and achieve.
nullInner-walls of duct of the present utility model automatic Magnetic testing device includes unit of walking、Actuating unit and detector unit，Described actuating unit includes servomotor、Change speed gear box、Front rotary shaft and rear rotary shaft，Described servomotor can drive described front rotary shaft and described rear rotary shaft to rotate by described change speed gear box respectively，Described rear rotary shaft is connected with described walking unit and transmits power，Described detector unit is fixedly mounted in described front rotary shaft，Entirety can follow the rotation of described front rotary shaft，Described detector unit is provided with universal wheel，When described actuating unit drives described walking unit motion by described rear rotary shaft，Described detector unit can be made to follow whole device in the duct along duct wall straight line moving and be monitored by described universal wheel，When described actuating unit drives rotation by described front rotary shaft，Whole device stops the position needing detection in the duct，The most described detector unit is circumferentially moved on duct wall by described universal wheel and is monitored.
The most described walking unit includes drive mechanism and follower, the rear end of described rear rotary shaft is worm screw, described drive mechanism includes the mutual driving worm gear in hexagonal angle with three of described worm engaging simultaneously, described worm gear is bonded in three rotating shafts by general flat key respectively, rotating shaft passes carriage shell and bogie housing, the other end connects driving pulley by flat key, described driving pulley is connected by Timing Belt with driven pulley, described driven pulley is connected in described rotating shaft, the described rotating shaft other end is fixed with driving wheel by nut, thus, described driving wheel can be driven to rotate by described worm screw.
The most described follower is arranged between described actuating unit and described detector unit by support frame as described above, and the structure of described follower is that three driven pulleys are separately mounted to three described hydraulic stems on three hydraulic stems and are mutually connected in uniform way on support frame as described above in hexagonal angle.
The most described detector unit includes support arm, support hydraulic pressure bar, universal wheel and failure detector, described support arm is connected with front rotary shaft, described support hydraulic pressure bar is connected with support arm and failure detector, described failure detector includes crossed yoke, magnetic flaw detection ink nozzle, dividing plate, black light lamp, photographic head, described universal wheel is arranged on outside four magnetic poles of crossed yoke, and described magnetic flaw detection ink nozzle, dividing plate, black light lamp, photographic head are sequentially arranged at inside crossed yoke.
The beneficial effects of the utility model are:
1, the pipeline of medium-small diameter, container inner wall can be carried out fluorescentmagnetic particle(powder) detection, solution pipeline, container inner wall weld defect are difficult to a difficult problem for detection；
2, internal diameter change can be adapted in a big way, detection device can with straight line moving, lift, turn to, detection longitudinal direction and circumferential welded seam automatically.
3, can automatically be adjusted according to weld seam both sides height difference, improve detection sensitivity.
Accompanying drawing explanation
Fig. 1 is automatic Magnetic testing equipments overall structure schematic diagram.
Fig. 2 is detection device partial structurtes schematic diagram.
Symbol description:
1, driving wheel 2, bogie 3, bracing frame 4, drive worm gear 5, drive worm screw 6, actuating unit 7, driven pulley 8, fixative depression bar 9, universal wheel 10, photographic head 11, black light lamp 12, dividing plate 13, magnetic flaw detection ink nozzle 14, crossed yoke 15, support hydraulic pressure bar 16, support arm 17, front rotary shaft 18, rear rotary shaft 19, free hydraulic stem 20, driving pulley 21, Timing Belt, 22, driven pulley
Detailed description of the invention
With reference to the accompanying drawings this utility model is further described.
As depicted in figs. 1 and 2, inner-walls of duct of the present utility model automatic Magnetic testing device includes unit of walking, actuating unit 6 and detector unit, actuating unit 6 includes servomotor, change speed gear box, front rotary shaft 17 and rear rotary shaft 18, walking unit includes drive mechanism and follower, drive mechanism includes driving wheel 1, bogie 2, bracing frame 3, drive worm gear 4, drive worm screw 5, free hydraulic stem 19, driving pulley 20, Timing Belt 21, driven pulley 22, follower includes driven pulley 7, fixative depression bar 8, detector unit includes universal wheel 9, photographic head 10, black light lamp 11, dividing plate 12, magnetic flaw detection ink nozzle 13, crossed yoke 14, support hydraulic pressure bar 15, support arm 16.
Actuating unit structure is: servomotor is fixed on change speed gear box, can drive front rotary shaft 17 and rear rotary shaft 18 respectively by change speed gear box, and front rotary shaft 17 provides power for detection device, and rear rotary shaft 18 provides power for drive mechanism.
Driving mechanism structure is: drive worm screw 5 to be fixed in rear rotary shaft 18, engage with three mutual driving worm gears 4 in hexagonal angle simultaneously, worm gear 4 is driven to be bonded in three rotating shafts by general flat key respectively, rotating shaft passes bracing frame 3 housing and bogie 2 housing, the other end connects driving pulley 20 by flat key, driving pulley 20 is connected by Timing Belt 21 with driven pulley 22, and driven pulley 22 is connected in rotating shaft, and the rotating shaft other end takes turns 1 by nut fixed drive.
Follower structure is: in bracing frame 3 front end equipped with three groups of identical equally distributed driven wheel structures of structure, and its structure is that three mutual fixative depression bars 8 in hexagonal angle are connected on bracing frame 3, and driven pulley 7 is connected with rotating shaft with the other end of fixative depression bar 8.
Structure of the detecting device is: support arm 16 is bonded in front rotary shaft 17 by flat key, it is connected by rotating shaft with four mutual support hydraulic pressure bars 15 in 90 ° simultaneously, 14 4 uniform end points of four support hydraulic pressure bar 15 other ends and crossed yokes are connected by rotating shaft, internal fixed installation photographic head 10, black light lamp 11, dividing plate 12, the magnetic flaw detection ink nozzle 13 successively of crossed yoke 14, four universal wheels 9 are arranged on outside four magnetic poles of crossed yoke.
When pipeline internal is walked, after servomotor in actuating unit 6 is driven by change speed gear box, rotary shaft 18 rotates, front rotary shaft 17 is motionless, rear rotary shaft 18 drives and drives worm screw 5 synchronous rotary, thus drive 3 the driving worm gears 4 being engaged with to rotate, driving pulley 20 drives driven pulley 22 to rotate by Timing Belt 21, thus power is sent to driving wheel 1, and driving means promotes whole device straight line moving along pipeline.
nullDuring longitudinal seam Magnetic testing，Front rotary shaft 17 is motionless，Crossed yoke 14 pushed down by four support hydraulic pressure bars 15，Thus allow universal wheel 9 be in close contact with inner-walls of duct，Now four magnetic poles of crossed yoke 14 meet, with detection surface, the requirement being smaller than 1.5mm，Universal wheel 9 rolls along inwall with the walking of whole device，It is first turned on photographic head 10 and black light lamp 11，Control Liquid spraying pump simultaneously and on weld seam, uniformly spray fluorescent magnetic suspension by magnetic flaw detection ink nozzle 13，Dividing plate 12 forbids that magnetic flaw detection ink is sprayed to black light lamp 11，It is energized to the Inside coil of crossed yoke 14 by remotely control simultaneously，Thus around 14 4 magnetic poles of crossed yoke, produce rotating excitation field，Weld seam and neighbouring defective position can be assembled magnetic flaw detection ink and be formed magnetic trace，The ultraviolet sent by black light lamp 11 is irradiated，Magnetic trace can send yellowish green visible ray，By photographic head 10, detection position is shot with video-corder，Thus record the testing result at detection position.
During circumferential welded seam Magnetic testing, regulation change speed gear box makes rear rotary shaft 18 not turn, and driving means maintains static, regulation change speed gear box makes front rotary shaft 17 rotate, support arm 16 is with front rotary shaft 17 synchronous rotary, thus drives crossed yoke 14 and universal wheel 9 to walk along inwall circumferential weld, and detecting step is ibid.
Concrete structure of the present utility model explanation and verification experimental verification all demonstrate this utility model and have the special feature that, it is capable of the fast automatic fluorescentmagnetic particle(powder) detection of medium-small diameter pipeline, container inner wall, effectively raise work efficiency and power of test, solve medium-small diameter pipeline, a difficult problem that container inner wall cannot directly detect.
Above preferred implementation of the present utility model is illustrated, but this utility model is not limited to above-described embodiment.It will be apparent to those skilled in the art that in the category described in claims, it should be apparent that it is conceivable that various modification or fixed case, certainly fall within technology category of the present utility model.
Claims (4)
- null1. an inner-walls of duct automatic Magnetic testing device，It is characterized in that: include unit of walking、Actuating unit and detector unit，Described actuating unit includes servomotor、Change speed gear box、Front rotary shaft and rear rotary shaft，Described servomotor can drive described front rotary shaft and described rear rotary shaft to rotate by described change speed gear box respectively，Described rear rotary shaft is connected with described walking unit and transmits power，Described detector unit is fixedly mounted in described front rotary shaft，Entirety can follow the rotation of described front rotary shaft，Described detector unit is provided with universal wheel，When described actuating unit drives described walking unit motion by described rear rotary shaft，Described detector unit can be made to follow whole device in the duct along duct wall straight line moving and be monitored by described universal wheel，When described actuating unit drives rotation by described front rotary shaft，Whole device stops the position needing detection in the duct，The most described detector unit is circumferentially moved on duct wall by described universal wheel and is monitored.
- 2. inner-walls of duct automatic Magnetic testing device as claimed in claim 1, it is characterized in that: described walking unit includes drive mechanism and follower, the rear end of described rear rotary shaft is worm screw, described drive mechanism includes the mutual driving worm gear in hexagonal angle with three of described worm engaging simultaneously, described worm gear is bonded in three rotating shafts by general flat key respectively, rotating shaft passes carriage shell and bogie housing, the other end connects driving pulley by flat key, described driving pulley is connected by Timing Belt with driven pulley, described driven pulley is connected in described rotating shaft, the described rotating shaft other end is fixed with driving wheel by nut, thus, described driving wheel can be driven to rotate by described worm screw.
- 3. inner-walls of duct automatic Magnetic testing device as claimed in claim 2, it is characterized in that: described follower is arranged between described actuating unit and described detector unit by support frame as described above, the structure of described follower is that three driven pulleys are separately mounted to three described hydraulic stems on three hydraulic stems and are mutually connected in uniform way on support frame as described above in hexagonal angle.
- 4. inner-walls of duct automatic Magnetic testing device as claimed in claim 1, it is characterized in that: described detector unit includes support arm, support hydraulic pressure bar, universal wheel and failure detector, described support arm is connected with front rotary shaft, described support hydraulic pressure bar is connected with support arm and failure detector, described failure detector includes crossed yoke, magnetic flaw detection ink nozzle, dividing plate, black light lamp, photographic head, described universal wheel is arranged on outside four magnetic poles of crossed yoke, and described magnetic flaw detection ink nozzle, dividing plate, black light lamp, photographic head are sequentially arranged at inside crossed yoke.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521108589.3U CN205449885U (en) | 2015-12-28 | 2015-12-28 | Automatic magnetic particle testing device of pipe inner wall |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521108589.3U CN205449885U (en) | 2015-12-28 | 2015-12-28 | Automatic magnetic particle testing device of pipe inner wall |
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| CN205449885U true CN205449885U (en) | 2016-08-10 |
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| CN201521108589.3U Active CN205449885U (en) | 2015-12-28 | 2015-12-28 | Automatic magnetic particle testing device of pipe inner wall |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107884472A (en) * | 2017-10-31 | 2018-04-06 | 中国大唐集团科学技术研究院有限公司火力发电技术研究所 | A kind of small-caliber pipeline inwall Magnetic testing device |
| CN109187735A (en) * | 2018-11-09 | 2019-01-11 | 成都熊谷油气科技有限公司 | Testing agency and detection method in a kind of in-service long-distance transport pipes boxing seam defect magnetic powder |
| CN110375810A (en) * | 2019-08-09 | 2019-10-25 | 中国石油天然气股份有限公司 | A kind of method, apparatus and readable storage medium storing program for executing of pipeline internal modification defects detection |
| CN111380951A (en) * | 2020-04-08 | 2020-07-07 | 河南省锅炉压力容器安全检测研究院 | Nondestructive detection method and device in long-distance pressure pipeline |
| CN113340505A (en) * | 2021-07-15 | 2021-09-03 | 山东大学 | Device and method for detecting residual stress of inner wall of over-bent pipeline based on magnetoelastic effect |
| CN114280162A (en) * | 2021-12-29 | 2022-04-05 | 长沙航空职业技术学院 | A robot for tap water pipeline detects a flaw |
-
2015
- 2015-12-28 CN CN201521108589.3U patent/CN205449885U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107884472A (en) * | 2017-10-31 | 2018-04-06 | 中国大唐集团科学技术研究院有限公司火力发电技术研究所 | A kind of small-caliber pipeline inwall Magnetic testing device |
| CN109187735A (en) * | 2018-11-09 | 2019-01-11 | 成都熊谷油气科技有限公司 | Testing agency and detection method in a kind of in-service long-distance transport pipes boxing seam defect magnetic powder |
| CN109187735B (en) * | 2018-11-09 | 2024-03-26 | 成都熊谷油气科技有限公司 | In-service long-distance pipeline girth weld defect magnetic powder internal detection mechanism and detection method |
| CN110375810A (en) * | 2019-08-09 | 2019-10-25 | 中国石油天然气股份有限公司 | A kind of method, apparatus and readable storage medium storing program for executing of pipeline internal modification defects detection |
| CN111380951A (en) * | 2020-04-08 | 2020-07-07 | 河南省锅炉压力容器安全检测研究院 | Nondestructive detection method and device in long-distance pressure pipeline |
| CN113340505A (en) * | 2021-07-15 | 2021-09-03 | 山东大学 | Device and method for detecting residual stress of inner wall of over-bent pipeline based on magnetoelastic effect |
| CN114280162A (en) * | 2021-12-29 | 2022-04-05 | 长沙航空职业技术学院 | A robot for tap water pipeline detects a flaw |
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