CN214277997U - Magnetic particle flaw detector with separable magnetic yoke - Google Patents
Magnetic particle flaw detector with separable magnetic yoke Download PDFInfo
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- CN214277997U CN214277997U CN202022496633.XU CN202022496633U CN214277997U CN 214277997 U CN214277997 U CN 214277997U CN 202022496633 U CN202022496633 U CN 202022496633U CN 214277997 U CN214277997 U CN 214277997U
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Abstract
The utility model discloses a yoke detachable magnetic particle flaw detector relates to nondestructive test technical field. The magnetic yoke body comprises a first magnetic yoke body and a second magnetic yoke body, a first thread is arranged at the end part of the first magnetic yoke body close to the second magnetic yoke body, a second thread with the opposite rotation direction to the first thread is arranged at the end part of the second magnetic yoke body close to the first magnetic yoke body, and the first magnetic yoke body and the second magnetic yoke body are connected together through a first thread and second thread matching connection sleeve; the other end of the first yoke body is provided with a first iron core, the other end of the second yoke body is provided with a second iron core, the first iron core is provided with a fixing pin, and the second yoke body is provided with a switch. The utility model provides a yoke detachable magnetic particle flaw detector adopts split type structure, and the two-stage of yoke can make up as required or separate, and specially adapted carries out magnetic particle testing to the metal part that is in narrow and small space, the utility model discloses yoke detachable magnetic particle flaw detector's application scope is wider, more convenient operation.
Description
Technical Field
The utility model relates to a nondestructive test technical field, concretely relates to yoke detachable magnetic particle flaw detector.
Background
The magnetic powder inspection is a widely used inspection method, has higher sensitivity for detecting the surface near-surface defects of ferromagnetic materials, wherein the magnetic yoke method has the advantages of non-electric contact, portability of the magnetic yoke, convenience for local detection and the like, and is a magnetic powder detection method which is widely applied to field detection.
The related research reports about the magnetic particle flaw detector in the prior art mainly include:
application number 201921756402.9 discloses portable magnetic particle flaw detector of image formula, including portable power source and the yoke body, portable power source passes through the electric wire with the yoke body and links to each other, and operating personnel need not the on-the-spot external power supply of looking for when magnetic particle testing, and accessible equipment is from taking portable power source to do plug-and-play, and is convenient, and portable power source repeatedly charges and supplies yoke body recycle. The LED lamp and the camera for illumination are arranged on the magnetic yoke body, the wireless network transmitter is arranged in the magnetic yoke body, when the detection surface cannot be observed in a close range, an operator can turn on the LED lamp, the camera and the wireless network transmitter, the picture shot by the camera of the magnetic yoke body is clearly displayed through the screen of the mobile terminal, and the picture is stored on the mobile terminal in a video format.
Application number 201922057857.8 discloses a magnetic particle flaw detector with stable clamping, which comprises a base, wherein two ends of the top surface of the base are fixedly connected with vertically arranged supporting rods, a sliding rail arranged along the length direction of the base is fixedly connected at a position of the top surface of the base, which corresponds to the position between the two supporting rods, an O-shaped probe is slidably connected on the sliding rail, supporting beams arranged along the length direction of the base are rotatably connected at opposite positions of the top of each supporting rod, supporting grooves arranged along the length direction of the supporting beams are respectively formed in the end surfaces, which are close to each other, of the supporting beams, and supporting columns are respectively slidably connected in the supporting grooves; the one end sliding connection that the bracing piece was kept away from to the support column lateral wall has a plurality of grip blocks, and the grip block all sets up along the length direction of support column, and the grip block homoenergetic slides to the direction that is close to the support column axis.
Application number 201921477040.X discloses a but remote control's magnetic particle flaw detector, it includes the portal frame to remove the subassembly, the both sides of placing the workstation of subassembly all are equipped with a portal frame, be equipped with electronic guide rail between the portal frame, sliding connection has two electronic slip tables on the electronic guide rail, be electronic slip table A and electronic slip table B respectively, electronic slip table A's top is equipped with annotates the feed cylinder, the bottom intercommunication that annotates the feed cylinder has the tip intercommunication of passage and passage, electronic slip table A's bottom fixedly connected with electric telescopic handle A, electric telescopic handle A's expansion end fixedly connected with shower nozzle, electric telescopic table B's bottom is equipped with electric telescopic handle B, electric telescopic handle B's expansion end fixed connection to camera, the camera is connected to control terminal through the transmission wire.
Although the prior art is improved a lot, the two poles of the magnetic yoke of the magnetic particle flaw detector are connected together by a fixed structure, the distance between the magnetic yokes can be adjusted by adjusting the angle of the iron core of the magnetic yoke, and the fixed structure is adopted for connection, so that when a part in a narrow space is detected, the situation that the magnetic yoke cannot be contacted with the detected part exists, and magnetic particle detection cannot be performed, typical parts such as an instrument tube seat on a high-temperature pipeline of a power station are provided, the high-temperature pipeline is provided with a thick heat insulation layer, the instrument tube is wrapped by the thick heat insulation layer, and when the heat insulation is opened during field detection, only a small part near the instrument tube is opened, so that the magnetic particle detection in the narrow space is caused, and if the heat insulation is opened to be small, the conventional magnetic particle flaw detector with the fixed magnetic yoke cannot be closed, so that the situation that the magnetic particle detection cannot be performed is caused; the same situation exists for a small space from the bottom of the pressure container to the ground, such as a hydrophobic small pipe seat at the bottom of the pressure container. Therefore, the magnetic particle flaw detector in the prior art is still to be further improved.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a yoke detachable magnetic particle flaw detector, it adopts split type structure, and the two-stage of yoke can make up as required or separate, and specially adapted carries out magnetic particle testing to the metal parts that are in narrow and small space.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a yoke detachable magnetic particle flaw detector, its includes the yoke body, its characterized in that: the magnetic yoke body comprises a first magnetic yoke body and a second magnetic yoke body, a first thread is arranged at the end part of the first magnetic yoke body close to the second magnetic yoke body, a second thread with the opposite rotation direction to the first thread is arranged at the end part of the second magnetic yoke body close to the first magnetic yoke body, and the first magnetic yoke body and the second magnetic yoke body are screwed together through the first thread and the second thread matching connection sleeve;
the other end of the first yoke body is provided with a first iron core, the other end of the second yoke body is provided with a second iron core, the first iron core is provided with a fixed pin, and the second yoke body is provided with a switch;
the first yoke body is provided with a first wiring hole, the second yoke body is provided with a second wiring hole, and the first wiring hole and the second wiring hole are connected with a power supply through connecting wires.
As a preferred embodiment of the present invention, the first yoke body and the second yoke body are respectively wound with coils, and the winding direction, the number of turns, and the diameter of the coils on the first yoke body and the second yoke body are the same.
As another preferred embodiment of the present invention, the coil on the first magnetic yoke body and the coil on the second magnetic yoke body are energized with direct current or alternating current when detecting.
Further, when the direct current is supplied, the current direction of the coil on the first yoke body is opposite to the current direction of the coil on the second yoke body, and when the alternating current is supplied, the phase of the current in the coil on the first yoke body is different from that in the coil on the second yoke body by 180 °.
More preferably, an elastic rubber band is wound around the fixing pin, and the first yoke body is fixed by the elastic rubber band.
Further preferably, the inner surface of the connecting sleeve is provided with threads, and the first yoke body and the second yoke body are connected together through the threads on the inner surface of the connecting sleeve.
More preferably, the power source is a portable power source, and the first yoke body and the second yoke body are both connected to the portable power source through respective connecting wires.
One end of the elastic rubber belt is provided with a bulge, and the other end of the elastic rubber belt is provided with a buckle which is connected with the bulge in a matched mode.
The magnetic yoke separable magnetic particle flaw detector is applied to magnetic particle inspection of metal parts in narrow space.
Compared with the prior art, the utility model discloses following beneficial technological effect has been brought:
the utility model provides a yoke detachable magnetic particle flaw detector, wherein first yoke body and second yoke body can make up separable, when needs carry out magnetic particle inspection to the metal parts in narrow and small space, can carry out magnetic particle inspection as required with first yoke body and the separation of second yoke body through unscrewing the sleeve.
The utility model provides a yoke detachable magnetic particle flaw detector both has been applicable to conventional magnetic particle testing, also is applicable to and carries out magnetic particle testing in narrow and small space.
The utility model discloses a winding elastic rubber area on the fixed pin, can fix the first yoke body on the tubule, handheld second yoke body both can realize that one-man operation carries out magnetic particle testing to narrow and small space part.
The utility model discloses yoke detachable magnetic particle flaw detector's application scope is wider, more convenient operation.
Drawings
The present invention will be further explained with reference to the accompanying drawings:
fig. 1 is a front view of the magnetic powder flaw detector with a separable magnetic yoke of the present invention;
FIG. 2 is an axonometric view of the magnetic particle flaw detector with a separable magnetic yoke of the present invention;
fig. 3 is a schematic view of the magnetic powder flaw detector with a separable magnetic yoke in a narrow space;
in the figure: 1. the magnetic powder flaw detector comprises a first magnet yoke body, 1-1 parts of first wiring holes, 1-2 parts of first threads, 1-3 parts of first iron cores, 1-4 parts of fixing pins, 2 parts of second magnet yoke bodies, 2-1 parts of second wiring holes, 2-2 parts of second threads, 2-3 parts of second iron cores, 2-4 parts of switches, 3 parts of connecting sleeves, 4 parts of a magnet yoke separable magnetic powder flaw detector, 5 parts of connecting pipes on a pipeline, 6 parts of holes on a heat insulation layer, 7 parts of heat insulation layers, 8 parts of pipelines.
Detailed Description
The utility model provides a yoke detachable magnetic particle flaw detector, in order to make the utility model discloses an advantage, technical scheme are clearer, more clear and definite, and it is right to combine specific embodiment below the utility model discloses do the detailed description.
Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.
Spatially relative terms, such as "below," "lower," "upper," "above," "upper," and the like, may be used herein for ease of description to describe one element or feature's relationship to another element or feature in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the object in use or operation in addition to the orientation depicted in the figures. For example, if the items in the figures are turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the elements or features. Thus, the exemplary term "below" can encompass both an orientation of below and above. Other orientations of the components are possible (rotated 90 degrees or at other orientations) and the spatially relative terms used herein should be interpreted accordingly.
Referring to fig. 1 and 2, the magnetic powder flaw detector with separable magnetic yoke of the present invention comprises a magnetic yoke body, wherein, the magnetic yoke body is different from the prior art, the magnetic yoke body adopts a separable design and is respectively a first magnetic yoke body 1 and a second magnetic yoke body 2, wherein, the end part of the first yoke body is connected with a first iron core 1-3, the end part of the second yoke body is connected with a second iron core 2-3, one end of the first yoke body close to the second yoke body is provided with a first thread 1-2, one end of the second magnetic yoke body close to the first magnetic yoke body is provided with a second thread 2-2, the first thread and the second thread have opposite rotating directions, when the magnetic yoke bodies need to be connected together, the first magnetic yoke body and the second magnetic yoke body are connected together through threads on the inner surface of the connecting sleeve 3, and the combined magnetic powder flaw detector has the same functions as a traditional portable magnetic powder flaw detector.
A fixed pin 1-4 is arranged on the first iron core, and a switch 2-4 is arranged on the second magnetic yoke body; the power-on and power-off operations can be carried out during detection.
The first yoke body is provided with a first wiring hole 1-1, the second yoke body is provided with a second wiring hole 2-1, and the first wiring hole and the second wiring hole are connected with a power supply through connecting wires. Preferably, the power supply can be a mobile power supply, so that the working personnel can conveniently work.
Preferably, the fixing pin can be wound with an elastic rubber belt, and one pole of the magnetic yoke can be fixed on the small pipe, so that magnetic powder inspection can be conveniently carried out on the fillet weld of the small pipe base in a narrow space.
Further preferably, be provided with the arch in the one end of elastic rubber area, the other end be provided with the buckle that protruding cooperation is connected when fixing a utmost point of yoke, can realize the high-speed joint through between arch and the buckle.
The magnetic yoke connecting parts are made of non-magnetic materials; coils are respectively wound on the first magnetic yoke body and the second magnetic yoke body, and the winding directions, the turns and the diameters of the coils on the two magnetic yoke bodies are completely the same; when the coil is detected, direct current or alternating current is fed, the directions of currents in the two coils are opposite when the direct current is fed, and the phase difference of the currents in the two coils is 180 degrees when the alternating current is fed.
The working method of the magnetic particle flaw detector with the separable magnetic yoke of the present invention is explained in detail below.
Example 1:
when parts in a narrow space need magnetic particle detection, the traditional magnetic particle flaw detector fixedly connected can not be inserted into the bottom of the space, so that the magnetic particle detection can not be carried out, and by using the magnetic yoke separable magnetic particle flaw detector 4 of the utility model, at this time, the connecting sleeve 3 may be unscrewed to separate the two poles of the magnetic yoke, and at this time, the first magnetic yoke body and the second magnetic yoke body may be placed at the bottom of the space, respectively, as shown in fig. 3, the figure shows a pipeline 8, a heat-insulating layer 7 wrapped outside the pipeline and a connecting pipe 5 on the pipeline, after the magnetic yoke body is required to be separated in the narrow space, a magnetic particle flaw detector can be inserted into a hole 6 on the heat-insulating layer for magnetic particle detection, through winding elastic rubber area on the fixed pin, the rubber area passes through the fixed pin and fixes a utmost point in the yoke on the tubule, and handheld another utmost point carries out magnetic particle testing to this realizes that one-man operation carries out magnetic particle testing to the part in narrow and small space.
Example 2:
carry out magnetic particle inspection time measuring to the part in conventional space, use the utility model discloses yoke detachable magnetic particle flaw detector, the electrode that need not separate two yokes this moment can according to conventional operation.
According to the above, the utility model provides a yoke detachable magnetic particle flaw detector both has been applicable to conventional magnetic particle testing, also is applicable to and carries out magnetic particle testing in narrow and small space.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited thereto.
Although terms such as the first yoke body, the first wiring hole, the first screw thread, the second yoke body, the second wiring hole, etc. are used more frequently herein, the possibility of using other terms is not excluded, and these terms are used only for the purpose of more conveniently describing and explaining the essence of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.
It is further understood that the specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (9)
1. The utility model provides a yoke detachable magnetic particle flaw detector, its includes the yoke body, its characterized in that: the magnetic yoke body comprises a first magnetic yoke body and a second magnetic yoke body, a first thread is arranged at the end part of the first magnetic yoke body close to the second magnetic yoke body, a second thread with the opposite rotation direction to the first thread is arranged at the end part of the second magnetic yoke body close to the first magnetic yoke body, and the first magnetic yoke body and the second magnetic yoke body are connected together through a first thread and a second thread matching connection sleeve;
the other end of the first yoke body is provided with a first iron core, the other end of the second yoke body is provided with a second iron core, the first iron core is provided with a fixed pin, and the second yoke body is provided with a switch;
the first yoke body is provided with a first wiring hole, the second yoke body is provided with a second wiring hole, and the first wiring hole and the second wiring hole are connected with a power supply through connecting wires.
2. The magnetic particle flaw detector with the separable magnetic yoke according to claim 1, characterized in that: the first magnetic yoke body and the second magnetic yoke body are respectively wound with coils, and the winding directions, the turns and the diameters of the coils on the first magnetic yoke body and the second magnetic yoke body are the same.
3. The magnet powder inspection instrument of claim 2, wherein: and the coil on the first magnetic yoke body and the coil on the second magnetic yoke body are electrified with direct current or alternating current during detection.
4. The magnet powder inspection instrument of claim 3, wherein: when the direct current is supplied, the current direction of the coil on the first magnetic yoke body is opposite to the current direction of the coil on the second magnetic yoke body.
5. The magnet powder inspection instrument of claim 3, wherein: when alternating current is applied, the phase of the current in the coils on the first and second magnetic yoke bodies differs by 180 °.
6. The magnetic particle flaw detector with the separable magnetic yoke according to claim 1, characterized in that: an elastic rubber belt is wound on the fixing pin, and the first magnetic yoke body is fixed through the elastic rubber belt.
7. The magnetic particle flaw detector with the separable magnetic yoke according to claim 1, characterized in that: the inner surface of the connecting sleeve is provided with threads, and the first magnetic yoke body and the second magnetic yoke body are connected together through the threads on the inner surface of the connecting sleeve.
8. The magnetic particle flaw detector with the separable magnetic yoke according to claim 1, characterized in that: the power supply is a mobile power supply, and the first yoke body and the second yoke body are connected with the mobile power supply through respective connecting wires.
9. The magnet powder inspection instrument of claim 6, wherein: one end of the elastic rubber belt is provided with a bulge, and the other end of the elastic rubber belt is provided with a buckle which is connected with the bulge in a matched mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022496633.XU CN214277997U (en) | 2020-10-30 | 2020-10-30 | Magnetic particle flaw detector with separable magnetic yoke |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022496633.XU CN214277997U (en) | 2020-10-30 | 2020-10-30 | Magnetic particle flaw detector with separable magnetic yoke |
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| CN214277997U true CN214277997U (en) | 2021-09-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116297818A (en) * | 2023-05-17 | 2023-06-23 | 中国核工业二四建设有限公司 | Nondestructive testing method for steel lining wallboard |
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2020
- 2020-10-30 CN CN202022496633.XU patent/CN214277997U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116297818A (en) * | 2023-05-17 | 2023-06-23 | 中国核工业二四建设有限公司 | Nondestructive testing method for steel lining wallboard |
| CN116297818B (en) * | 2023-05-17 | 2023-08-04 | 中国核工业二四建设有限公司 | Nondestructive testing method for steel lining wallboard |
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