CN103308595B - A kind of panel weld magnetic powder flaw detector - Google Patents
A kind of panel weld magnetic powder flaw detector Download PDFInfo
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- CN103308595B CN103308595B CN201310204123.2A CN201310204123A CN103308595B CN 103308595 B CN103308595 B CN 103308595B CN 201310204123 A CN201310204123 A CN 201310204123A CN 103308595 B CN103308595 B CN 103308595B
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- magnetic powder
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Abstract
A kind of panel weld magnetic powder flaw detector, relates to a kind of magnetic powder flaw detector, carries out the problem of inconvenience when weld defects is checked for solving heat exchanger panel weld.It comprises ring electrode, tubular electrode, arm, disk, support plate, rise head, under to rise head, the block that rises, mandrel, fluting steel cylinder, electric wire, cable and plug, by support plate stationary ring electrode below described disk, lower disk surface fixes arm, mandrel is provided with in arm, arm is fixedly connected with the upper and lower head that rises respectively with the bottom of mandrel, upper and lower head outside of rising is provided with the block that rises, fluting steel cylinder and tubular electrode successively, and at plug with disk, be electrically connected by cable between plug with ring electrode.By passing into the magnetic field that electric current produces between ring electrode and tubular electrode, and spraying magnetic particle inspection weld defect, effectively improve the efficiency that heat exchanger panel weld carries out weld defects inspection, and avoiding undetected.
Description
Technical field
The present invention relates to a kind of magnetic powder flaw detector, specifically a kind of for detecting the whether defective panel weld magnetic powder flaw detector of Tube Sheet of Heat Exchanger plate welding seams.
Background technology
At present when detecting heat exchanger tube sheet weld defect, do not have special magnetic powder flaw detector, general A, D, E, O type probe is all unavailable, two stick electrode can only be used, between two electrodes, pass into electric current, the magnetic field utilizing this electric current to produce, spray magnetic to detect defect.The shortcoming of this way is: because pipe and the weld seam of plate are circular, and fusiform electric current between two stick electrode, can only be produced, nearly cyclic currents cannot be produced, so can only gradation on one side test, not only work efficiency is low, and often causes undetected.
Summary of the invention
The object of the present invention is to provide a kind of panel weld magnetic powder flaw detector, by passing into the magnetic field that electric current produces between ring electrode and tubular electrode, and spray magnetic particle inspection weld defect, the problem of inconvenience when weld defects is checked is carried out for solving heat exchanger panel weld.
The present invention solves the technical scheme that its technical matters takes: a kind of panel weld magnetic powder flaw detector, comprise ring electrode, tubular electrode, arm, disk, support plate, rise head, under to rise head, the block that rises, mandrel, fluting steel cylinder, electric wire, cable and plug.
Described ring electrode is annular metal parts, a rosette is provided with in the central authorities of described ring electrode, linked into an integrated entity by insulation support plate between described ring electrode and disk, the two ends of support plate are riveted on respectively to be fixed on upper supporting plate seat on disk and ring electrode and lower carrier plate seat, and is evenly equipped with at least three float electrodes in described ring electrode circumference;
Described disk central authorities are fixedly connected with the metal manifold of a hollow by screw thread, described arm lower end is fixedly connected with tip taper rising metal head down by screw thread; One mandrel is through described arm and the upper and lower two ends of arm are extended at two ends, and be articulated with centering type locking handle in the upper end of described mandrel, rise head under the lower end of described mandrel is fixedly connected with tip taper metal upward by screw thread;
The upper and lower spring being provided with between head and being enclosed within mandrel that rises be oppositely arranged, and three metals being evenly arranged on upper and lower periphery, nose cone portion of rising rise block, be nested with fluting steel cylinder and fluting tubular electrode from inside to outside successively in the periphery of the block that rises simultaneously, for ensureing uniform current, the fluting on described steel cylinder and tubular electrode is a few font gaps;
Described disk and ring electrode are electrically connected to plug respectively by cable.
Described insulation support plate is glass epoxy.
Described float electrode, ring electrode, tubular electrode are copper member.
The invention has the beneficial effects as follows: by passing into the magnetic field that electric current produces between ring electrode and tubular electrode, and spraying magnetic particle inspection weld defect, effectively improve the efficiency that heat exchanger panel weld carries out weld defects inspection, and avoiding undetected.
Accompanying drawing explanation
Fig. 1 is 3 d effect graph of the present invention;
Fig. 2 is cut-open view of the present invention;
Fig. 3 is fundamental diagram step one of the present invention;
Fig. 4 is fundamental diagram step 2 of the present invention;
In figure: 1 plug, 2 locking handles, 3 disks, 4 upper supporting plate seats, 5 support plates, 6 ring electrodes, 7 arms, 8 rise heads, 9 tubular electrodes, more than 10 font gaps, 11 float electrodes, 12 steel pins, 13 lower carrier plate seats, 14 electric wires, 15 cables, 16 mandrels, 17 rise block, 18 fluting steel cylinders, 19 springs, 20 times heads that rise, 21 weld seams to be detected.
Embodiment
As shown in Figures 1 to 4, the present invention includes plug 1, lock 2, disk 3, upper supporting plate seat 4, support plate 5, ring electrode 6, arm 7, goes up 8, tubular electrode 9, float electrode 11, steel pin 12, lower carrier plate seat 13, electric wire 14, cable 15, mandrel 16, rise block 17, fluting steel cylinder 18, spring 19 and under rise 20.
Described ring electrode 6 is made up of copper plate, and profile is short cylindrical shape, and the side of ring electrode 6 is electrically connected with electric wire 14, and electric wire 14 is electrically connected with plug 1 by cable 15; Another wire 14 termination is electrically connected with disk 3, and the other end is also be electrically connected with plug 1 by cable 15; On ring electrode 6, also cover has three float electrodes 11, and this float electrode 11 is riveted by after copper plate bending, the rounded sharp mouth shape in its end, and kink is on ring electrode 6.
Described disk 3 is bowl-shape metal parts, and have 3 pairs of upper supporting plate seats 4 at disk outside surface by 120 ° of even riveted joints, described upper supporting plate seat 4 is made up of strip iron plate bending 90 °; Support plate 5 is fixedly connected with by rivet between often pair of upper supporting plate seat 4, described support plate 5 is the strip board of the parallelogram be made up of fiberglass, its upper end is pressed from both sides riveting in upper supporting plate seat 4, lower end is pressed from both sides riveting in lower carrier plate seat 13, lower carrier plate seat 13 is also be made up of strip iron plate bending 90 °, distributes and be riveted on the inner cylinder face of ring electrode 6 by 120 °.
Be fixedly connected with an arm 7 at described disk 3 central openings place by screw thread, described arm 7 is the externally threaded hollow iron pipes of two end band, and arm 7 lower end is fixedly connected with rise 8; Be provided with a mandrel 16 at arm 7 center, mandrel 16 is elongated steel poles, and upper end has radial circular hole, is installed with steel pin 12 in this circular hole, by steel pin 12 with locking 2 chain connections; Locking is 2 outer images solid whistle, and described locking has a groove slightly wider than mandrel 16 the parts of 2 following circles, in the vertical direction of this groove, is drilled with a through hole, is installed with steel pin 12 in this through hole by rotund edge.The lower end cover of mandrel 16 has spring 19, and this spring 19 is the normal spiral springs be coiled into by steel wire, and being fixedly connected with down by screw thread bottom of mandrel 16 rises 20.
Go up 8 and under to rise 20 be all the cone-shaped metal part that profile is the same, its difference is the thread size difference of endoporus; Rise 8 and under rise 20 peripheral, be also provided with three blocks 17 that rise, if three blocks 17 that rise are combined, profile is exactly complete, two ends is bell-mouthed cylindrical shapes; If separately, be then two ends are circular conical surfaces, both sides are angles 120 ° plane, inside and outside be the special block part on the face of cylinder.Three blocks 17 that rise are fixedly connected in a fluting steel cylinder 18, described fluting steel cylinder 18 is cylinders that a cylindrical sheet steel is rolled into, fluting is a few font gap, the periphery of fluting steel cylinder 18 is fixedly connected tubular electrode 9, described tubular electrode 9 is made up of copper sheet, and its profile is identical with fluting steel cylinder 18.
During use, disclose on earth in steel pipe tubular electrode 9 being disclosed panel weld to be measured, make the lower edge of ring electrode 6 and the plate good contact of panel weld to be measured; Locking is pulled clockwise 2, because locking is eccentric the positions of installing steel pins 12 in 2, along with locking is the rotation of 2, mandrel 16 hinged with it is forced upwardly twitch, at the other end of mandrel 16, being fixedly connected with down with mandrel 16 rises 20 moves up, make rise 8 and under 20 tension force overcoming spring 19 that rise squeeze to centre; Due to go up 8 and under 20 inside surface that rise are conical surfaces, the block 17 that rises can be forced to be separated from each other, the profile of tubular electrode 9 is driven to expand, with the inwall close contact of the steel pipe of panel weld to be measured, snap-in force also makes the steel plate close contact of on ring electrode 6 three float electrodes 11 and panel weld to be measured; Now, between two electrodes, pass into electric current, the magnetic field utilizing this electric current to produce, spray magnetic to detect defect.Although pipe and the weld seam of plate are circular, what two ring electrodes produced is also nearly cyclic currents, can test the weld seam of a pipe simultaneously.
The position of weld seam 21 to be detected is respectively illustrated in Fig. 3 and Fig. 4.
Claims (8)
1. a panel weld magnetic powder flaw detector, comprises ring electrode, tubular electrode, cable and plug, and described ring electrode and disk are connected to plug respectively by cable, it is characterized in that,
Be provided with a rosette in the central authorities of described ring electrode, linked into an integrated entity by insulation support plate between described ring electrode and disk, and be evenly equipped with at least three float electrodes in described ring electrode circumference;
The metal manifold of described disk mediad downward-extension one hollow, described arm lower end is fixedly connected with tip taper rising metal head down; One mandrel is through described arm and the upper and lower two ends of arm are extended at two ends, and be articulated with centering type locking handle in the upper end of described mandrel, rise head under the lower end of described mandrel is fixedly connected with tip taper upward;
Be provided with spring rising up and down between head of being oppositely arranged, and the some metals being arranged on periphery, nose cone portion of rising up and down rise block, are nested with fluting steel cylinder and fluting tubular electrode in the periphery of the block that rises from inside to outside successively simultaneously.
2. a kind of panel weld magnetic powder flaw detector according to claim 1, is characterized in that, described insulation support plate is glass epoxy, and is connected by adaptor between described insulation support plate and ring electrode.
3. a kind of panel weld magnetic powder flaw detector according to claim 1 and 2, it is characterized in that, described float electrode, ring electrode, tubular electrode are copper member.
4. a kind of panel weld magnetic powder flaw detector according to claim 3, is characterized in that, described fluting steel cylinder and the fluting of slotting in tubular electrode are all the gap of a few shape.
5. a kind of panel weld magnetic powder flaw detector according to claim 3, is characterized in that, described arm is circular iron pipe, and the upper and lower two ends of arm are connected by screw thread with disk and rise head respectively.
6. a kind of panel weld magnetic powder flaw detector according to claim 1, is characterized in that, described in the block that rises be three, be arranged in head periphery of rising up and down uniformly.
7. a kind of panel weld magnetic powder flaw detector according to claim 1, is characterized in that, described locking for one have locking dead point eccentric block, eccentric block axle center is by steel pin and mandrel pivot joint.
8. a kind of panel weld magnetic powder flaw detector according to claim 7, is characterized in that, described mandrel is steel pole, lower end by screw thread with under the head that rises be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310204123.2A CN103308595B (en) | 2013-05-28 | 2013-05-28 | A kind of panel weld magnetic powder flaw detector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310204123.2A CN103308595B (en) | 2013-05-28 | 2013-05-28 | A kind of panel weld magnetic powder flaw detector |
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| Publication Number | Publication Date |
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| CN103308595A CN103308595A (en) | 2013-09-18 |
| CN103308595B true CN103308595B (en) | 2015-12-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310204123.2A Expired - Fee Related CN103308595B (en) | 2013-05-28 | 2013-05-28 | A kind of panel weld magnetic powder flaw detector |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2103812U (en) * | 1991-10-22 | 1992-05-06 | 机电部机械院可靠性中心 | Single-hand flaw detector for permanent magnetic powder |
| CN101435797A (en) * | 2008-10-24 | 2009-05-20 | 捷特（北京）探伤设备有限公司 | Telescopic cross magnet yoke fluorescent magnetic powder flaw detection machine |
| KR20100000814U (en) * | 2008-07-16 | 2010-01-26 | 최은숙 | Magnetic flaw detector |
| CN202599903U (en) * | 2012-05-07 | 2012-12-12 | 南车戚墅堰机车有限公司 | Shaft type workpiece magnetic powder flaw detector |
| CN203275365U (en) * | 2013-05-28 | 2013-11-06 | 山东省特种设备检验研究院聊城分院 | Tube plate welding joint magnetic defect detector |
-
2013
- 2013-05-28 CN CN201310204123.2A patent/CN103308595B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2103812U (en) * | 1991-10-22 | 1992-05-06 | 机电部机械院可靠性中心 | Single-hand flaw detector for permanent magnetic powder |
| KR20100000814U (en) * | 2008-07-16 | 2010-01-26 | 최은숙 | Magnetic flaw detector |
| CN101435797A (en) * | 2008-10-24 | 2009-05-20 | 捷特（北京）探伤设备有限公司 | Telescopic cross magnet yoke fluorescent magnetic powder flaw detection machine |
| CN202599903U (en) * | 2012-05-07 | 2012-12-12 | 南车戚墅堰机车有限公司 | Shaft type workpiece magnetic powder flaw detector |
| CN203275365U (en) * | 2013-05-28 | 2013-11-06 | 山东省特种设备检验研究院聊城分院 | Tube plate welding joint magnetic defect detector |
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| CN103308595A (en) | 2013-09-18 |
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Granted publication date: 20151216 Termination date: 20160528 |