CN202994724U - Magnetic particle flaw detector - Google Patents
Magnetic particle flaw detector Download PDFInfo
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- CN202994724U CN202994724U CN 201220727515 CN201220727515U CN202994724U CN 202994724 U CN202994724 U CN 202994724U CN 201220727515 CN201220727515 CN 201220727515 CN 201220727515 U CN201220727515 U CN 201220727515U CN 202994724 U CN202994724 U CN 202994724U
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Abstract
The utility model discloses a magnetic particle flaw detector which comprises a frame and a track. The track is provided with a mobile trolley for transporting parts. The mobile trolley is provided with a carrier roller capable of loading parts. The frame is provided with a circumferential magnetizing device for detecting parts and a magnetic suspension spraying device. Compared with the prior art, the magnetic particle flaw detector provided by the utility model not only has the advantages of simple structure and convenience in manufacturing, but also has the advantages of skillful design, safety and reliability, integral magnetization for workpieces, ideal magnetizing effect and accurate and reliable detection results during part detection and the like.
Description
Technical field
The utility model relates to a kind of defectoscope, particularly a kind of magnaflux.
Background technology
At present, magnetic powder inspection utilizes magnetic phenomenon to detect surface of the work and near surface flaw, and it is the most frequently used a kind of in flux-leakage detection method.The basis of magnetic powder inspection is the magnetic interaction of fault location stray field and magnetic.After ferromagnetic material or workpiece magnetizing, the fault location magnetic line of force that reaches nearly surface on the surface deforms, and the effusion surface of the work forms magnetic pole and also forms detectable stray field.At this moment, sprinkle magnetic or water magnetic flaw detection ink on surface of the work, the magnetic particle just can be adsorbed on defect area, demonstrates position, shape and the size of defective, the ultimate principle of magnetic powder inspection that Here it is.When the magnetic line of force was vertical with defective, stray field was the strongest, also was conducive to most detecting of defective; And if parallel with crackle, the magnetic leakage free field produces, defective can not be detected.In order to find all defectives, so extend, developed various Magnitizing method, in order to set up the magnetic field of various different directions on workpiece.According to the direction of setting up magnetic field on workpiece, generally can be divided into circumferential magnetization, longitudinal magnetization and multidirectional magnetization.Circumferential magnetization means to the workpiece direct-electrifying, perhaps makes electric current flow through the conductor that runs through workpiece center hole, is intended to set up in workpiece one around workpiece and the closed magnetic field vertical with workpiece spindle, and the magnetic line of force has closed shape.Circumferential magnetization is mainly used in finding the defective with the workpiece axially parallel, the i.e. defective parallel with direction of current.Longitudinal magnetization mean with electric current by around coil, make workpiece magnetizing method along the longitudinal direction, the magnetic line of force in workpiece is parallel to the axial line of coil.Longitudinal magnetization is mainly used in finding with workpiece spindle to vertical defective.Utilize the electromagnetic yoke magnetization to make the magnetic line of force be parallel to workpiece spindle to also belonging to this class of longitudinal magnetization.Multidirectional magnetization means by resultant magnetization and makes it in workpiece to produce a size and direction circular or spirality changing magnetic field in time.Because the direction in magnetic field is constantly changing on workpiece, so can check out the defective of different directions.Excitation supply is provided by the low-voltage and high-current that transformer secondary output produces usually.
For the circumferential magnetization of annular, dish type or hollow workpiece, usually adopt excellent method or the cable winding method of wearing.Wearing excellent method is the method for annular, dish type or hollow workpiece that an electrical conductor is penetrated, and is called again central conductor method or central conductor method.This method mainly for detection of along workpiece spindle to longitudinal defect, can find simultaneously the axial flaw of workpiece surfaces externally and internally and the radially defective of both ends of the surface.Because the diameter of the magnetic field intensity of wearing excellent method and workpiece is inversely proportional to, the magnetic field on close center pit surface is stronger than outer surface magnetic field, Distribution of Magnetic Field is very inhomogeneous, annular, dish type or hollow workpiece that particularly the difference of inside and outside diameter is larger, and in its Distribution of Magnetic Field, strong outer weak phenomenon is more serious; And for the larger annular of external diameter, dish type or hollow workpiece, to reach enough magnetic field outside workpiece, and wear excellent electric current very large, power consumption, magnetization precision are difficult to control.
Artificial cable winding method is to be wound around annular, dish type or hollow workpiece energising magnetizing method with flexible cable, when adopting this method magnetization, as long as cable winding is even, Distribution of Magnetic Field on workpiece is more even, can form along the Circumferential field of workpiece circumferencial direction, be used for finding the radially defective parallel with magnetization current, also can find simultaneously the axial flaw of workpiece surfaces externally and internally and the radially defective of two sides.Its shortcoming is that artificial winding is loaded down with trivial details, and the artificial consistance that is wound around is poor, and inefficiency is not suitable for batch detection.
For the longitudinal magnetization of annular, dish type or hollow workpiece, usually adopt coil method or yoke method.This method is mainly used in finding with workpiece spindle to vertical defective.Coil method normally is placed on workpiece magnetizing method in alive magnetic plug, and this method is mainly used in finding with coil axes to vertical defective.Its shortcoming is to the magnetization of annular, dish type or hollow workpiece the time, and workpiece two ends are magnetic pole, can produce demagnetizing field, with the length of workpiece and diameter ratio (L/D), the little more difficult magnetization of healing of substantial connection, L/D is arranged.On the other hand, this method is to the endoporus of annular, dish type or hollow workpiece magnetizable not, has the region between the heart and the diaphragm district.
Yoke method claims again yoke method, is to utilize electromagnetic yoke to the method for workpiece magnetizing, and this method is easily found the defective vertical with the two poles of the earth line with the part of workpiece as magnetic circuit.This method is applicable to the local magnetized to workpiece, and inadaptable Overall magnetization to annular, dish type or hollow workpiece is so the existing magnetic powder defect detecting magnifying apparatus detection heavy parts that utilizes is still perfect not, so existing checkout equipment and imperfection.
Summary of the invention
The purpose of this utility model is: provide a kind of simple in structure, novel in design, esy to use, safe and reliable, flaw detection efficient is high, reduce a kind of magnaflux of operator's labour intensity, to overcome the deficiencies in the prior art.
The utility model is constructed as follows: a kind of magnaflux, comprise frame and track, and be provided with in orbit the travelling car of transportation part, be provided with the carrying roller that can load part on travelling car; Be provided with circumferential magnetization device and the magnetic flaw detection ink flusher that can detect part on frame.
The circumferential magnetization device by contact winding around, the removable yoke of " word " shape, " U word " shape fixedly yoke form.
The contact winding around is diffusion type to detected large-sized ring part both ends of the surface, formed by the outside radial many strip conductors line in center, being provided with on the contact winding around can intermeshing contact, fixedly be wound with drive coil on yoke the removable yoke of " word " shape and " U word " shape, the hole in piece part that the removable yoke of " word " shape is passed detected large-sized ring part and " U word " shape be the yoke closed circuit yoke of composition that is connected fixedly.
The magnetic flaw detection ink flusher is comprised of intercepting basin, liquid reserve tank, stirring motor, spray head, sprinkling oil pump.
Be provided with magnetized bit on frame, be provided with in orbit material level.
Carrying roller is comprised of four carrying rollers.
Owing to having adopted technique scheme, during work, at first part is arranged on the travelling car that is arranged on upper material level place, then travelling car be transported to circumferential magnetization device place to magnetized bit, workpiece return from magnetized bit after magnetized bit spray and magnetization, workpiece are magnetized observe the position observe, observe finish after workpiece return to again that magnetized bit demagnetizes, the workpiece demagnetization turns back to the material level blanking after finishing; Compared with prior art, the utility model not only has advantage simple in structure, easy to make, and design ingenious, safe and reliable, to whole workpiece magnetization, when detecting part, satisfactory for result, the testing result of magnetization waits advantage accurately and reliably.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the upward view of Fig. 1;
Fig. 3 is the left view of Fig. 1;
Fig. 4 is circumferential magnetization apparatus structure schematic diagram;
Description of reference numerals: 1-frame, 2-track, 3-travelling car, the 4-carrying roller, 5-circumferential magnetization device, 6-magnetic flaw detection ink flusher, 7-contact winding around, the removable yoke of 8-" word " shape, 9-" U word " shape is yoke fixedly, the 10-contact, the 11-drive coil, the 12-intercepting basin, 13-magnetized bit, the upper material level of 14-.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
Enforcement of the present utility model: a kind of magnaflux, comprise frame 1 and track 2, be provided with the travelling car 3 of transportation part on track 2, be provided with the carrying roller 4 that can load part on travelling car 3; Be provided with circumferential magnetization device 5 and the magnetic flaw detection ink flusher 6 that can detect part on frame 1.
The order point of carrying travelling car 3 is set: upper material level workpiece is delivered to magnetized bit, the magnetized bit workpiece is delivered to observed the position; To observe the position workpiece and deliver to magnetized bit; The magnetized bit workpiece is delivered to lower material level; Realize that workpiece moves in order at up and down material level and magnetized bit, living again of observation interdigit.
7 pairs of detected large-sized ring part both ends of the surface of contact winding around are diffusion type, formed by the outside radial many strip conductors line in center, being provided with on contact winding around 7 can intermeshing contact 10, fixedly be wound with drive coil 11 on yoke 9 in the removable yoke of " word " shape 8 and " U word " shape, the hole in piece part that the removable yoke 5 of " word " shape is passed detected large-sized ring part and " U word " shape be the yoke 9 closed circuit yoke of composition that is connected fixedly.
Magnetic flaw detection ink flusher 6 is comprised of intercepting basin 12, liquid reserve tank, stirring motor, spray head, sprinkling oil pump.
Be provided with magnetized bit 13 on frame 1, be provided with material level 14 on track 2.
Magnetic flaw detection ink is stored in liquid reserve tank, and before workpiece magnetizing, magnetic flaw detection ink is sprayed onto on workpiece through oil pump, spray head and magnetizes, magnetic flaw detection ink is back to liquid reserve tank through strainer filtering, in order to recycle after intercepting basin is collected, be equipped with the twice filtration unit in device, can prevent from polluting, guarantee that magnetic flaw detection ink is clean; Stirring apparatus is made and installed additional to liquid reserve tank by the high-quality stainless steel material can prevent the heavy knot of magnetic in magnetic flaw detection ink; Spray head can be established two kinds of automatic spraying and spread by hand.
The removable yoke 8 of " word " shape pass detected workpiece centre and " U word " shape fixedly yoke 9 be connected, " U word " shape fixedly on two magnetic posts of yoke 9 respectively around the identical elementary drive coil 11 of the number of turn, detected annular workpieces itself is as secondary coil, after two groups of drive coils are connected totally 50 circles connect excitation supply; The removable yoke 8 of " word " shape and " U word " shape fixedly yoke 9 are built up by siliconized plate, the magnetic flux size is directly proportional to the cross section of yoke, yoke section is long-pending to be determined to the cross section according to workpiece ring, and above-mentioned yoke section is long-pending is 150 * 150, and " word " shape equates with " U word " shape yoke section; The distance of the two magnetic posts of " U word " shape yoke is determined according to Workpiece length.
During the utility model work, at first part is arranged on the travelling car 6 that is arranged on upper material level 14 places, then travelling car 6 be transported to circumferential magnetization device 5 places to magnetized bit 13, workpiece return from magnetized bit after magnetized bit 13 sprays and magnetization, workpiece are magnetized observe the position observe, observe finish after workpiece return to again that magnetized bit demagnetizes, the workpiece demagnetization turns back to material level 14 blankings after finishing.
Claims (6)
1. a magnaflux, comprise frame (1) and track (2), it is characterized in that: be provided with the travelling car (3) of transportation part on track (2), be provided with the carrying roller (4) that can load part on travelling car (3); Be provided with circumferential magnetization device (5) and the magnetic flaw detection ink flusher (6) that can detect part on frame (1).
2. magnaflux according to claim 1 is characterized in that: circumferential magnetization device (5) by contact winding around (7), the removable yoke of " word " shape (8), " U word " shape fixedly yoke (9) form.
3. magnaflux according to claim 2, it is characterized in that: contact winding around (7) is diffusion type to detected large-sized ring part both ends of the surface, formed by the outside radial many strip conductors line in center, being provided with on contact winding around (7) can intermeshing contact (10), fixedly be wound with drive coil (11) on yoke (9) in the removable yoke of " word " shape (8) and " U word " shape, the hole in piece part that the removable yoke of " word " shape (5) is passed detected large-sized ring part and " U word " shape be yoke (9) the closed circuit yoke of composition that is connected fixedly.
4. magnaflux according to claim 1, it is characterized in that: magnetic flaw detection ink flusher (6) is comprised of intercepting basin (12), liquid reserve tank, stirring motor, spray head, sprinkling oil pump.
5. magnaflux according to claim 1, is characterized in that: be provided with magnetized bit (13) on frame (1), be provided with upper material level (14) on track (2).
6. magnaflux according to claim 1, it is characterized in that: carrying roller (4) is comprised of four carrying rollers (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220727515 CN202994724U (en) | 2012-12-26 | 2012-12-26 | Magnetic particle flaw detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220727515 CN202994724U (en) | 2012-12-26 | 2012-12-26 | Magnetic particle flaw detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202994724U true CN202994724U (en) | 2013-06-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220727515 Expired - Fee Related CN202994724U (en) | 2012-12-26 | 2012-12-26 | Magnetic particle flaw detector |
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| Country | Link |
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| CN (1) | CN202994724U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108519429A (en) * | 2018-03-05 | 2018-09-11 | 江苏赛福探伤设备制造有限公司 | A kind of dedicated double mode defect-detecting equipment of spoke |
| CN114655681A (en) * | 2021-12-23 | 2022-06-24 | 衡阳市金则利特种合金股份有限公司 | Feeding assembly and feeding method of round bar steel magnetic powder flaw detection system |
-
2012
- 2012-12-26 CN CN 201220727515 patent/CN202994724U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108519429A (en) * | 2018-03-05 | 2018-09-11 | 江苏赛福探伤设备制造有限公司 | A kind of dedicated double mode defect-detecting equipment of spoke |
| CN108519429B (en) * | 2018-03-05 | 2024-04-19 | 江苏赛福探伤设备制造有限公司 | Dedicated dual mode fault detection equipment of spoke |
| CN114655681A (en) * | 2021-12-23 | 2022-06-24 | 衡阳市金则利特种合金股份有限公司 | Feeding assembly and feeding method of round bar steel magnetic powder flaw detection system |
| CN114655681B (en) * | 2021-12-23 | 2023-10-20 | 衡阳市金则利特种合金股份有限公司 | Loading assembly and loading method of round bar steel magnetic particle inspection system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130612 Termination date: 20171226 |