CN201653978U - Yoke composite magnetizer - Google Patents
Yoke composite magnetizer Download PDFInfo
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- CN201653978U CN201653978U CN2010290980199U CN201029098019U CN201653978U CN 201653978 U CN201653978 U CN 201653978U CN 2010290980199 U CN2010290980199 U CN 2010290980199U CN 201029098019 U CN201029098019 U CN 201029098019U CN 201653978 U CN201653978 U CN 201653978U
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- yoke
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Abstract
The utility model relates to a yoke composite magnetizer for detecting the crack or damage on a magnetic material workpiece. The yoke composite magnetizer comprises a U-shaped longitudinal yoke, two workpiece clamping blocks and a coil wound around the longitudinal yoke, the workpiece clamping blocks are arranged at two ends of the longitudinal yoke respectively, a conducting rod for holding the workpiece is arranged in the workpiece clamping block, the alternating current for generating a circumferential magnetic field on the workpiece is connected at the outside end of the conducting rod, the alternating current for generating an axial magnetic field on the workpiece is connected at two ends of the coil. The yoke composite magnetizer has simple structure, the detected workpiece can obtain stable, uniform and high-strength axial magnetic field and circumferential magnetic field simultaneously by using the yoke composite magnetizer, the circumferential and longitudinal composite magnetizing mode has the advantages of concentration, low power consumption, no blind area in the magnetic field and high sensitivity, the crack or damage in any shape at any position can be detected at a time.
Description
Technical field
The utility model relates to a kind of Non-Destructive Testing machinery, relates in particular to a kind of be used to detect the crackle on the ferrimagnet workpiece or the yoke compound magnetizer for magnetic particle inspection of damage.
Background technology
The flaw detection of the surface crack of workpiece need have simultaneously and makes the electromagnetic system that produces longitudinal magnetic field (being axial magnetic field) and Circumferential field on the workpiece, makes workpiece be subjected to crackle or the damage of axial, circumferential magnetization to detect workpiece simultaneously under a kind of state.
Traditional method can't make workpiece obtain the axial and circumferential magnetization simultaneously under a kind of state, and the magnetic field that this dual mode produces is inhomogeneous, so that the inspection blind area is arranged on workpiece.How to make workpiece under same state, existing axial magnetic field has Circumferential field again, and this is magnaflux one a big technical barrier.
Though, the patent No. is that 90212242.8 Chinese patent (publication number is CN2074455U) discloses a kind of magnetic powder flaw detector for ring parts on April 3rd, 1991, it can realize measured workpiece under same state, obtains stable, uniform axial and circumferential magnetic field, but its structure more complicated.
The utility model content
Technical problem to be solved in the utility model provides a kind of yoke compound magnetizer for magnetic particle inspection simple in structure, and it can be so that measured workpiece under same state, obtains stable, even, high-intensity axial, Circumferential field.
To achieve the above object, the utility model adopts following technical scheme:
A kind of yoke compound magnetizer for magnetic particle inspection, comprise vertical yoke of " U " type, two piece-holder pieces and around the home at the vertical coil of yoke, described piece-holder piece is separately positioned on the two ends of vertical yoke, is provided with the contact rod that is used for holding workpiece in the described piece-holder piece.
In above-mentioned yoke compound magnetizer for magnetic particle inspection, the outside termination of described contact rod is used for producing the alternating current of Circumferential field on workpiece, and described coil two terminations are used for producing the alternating current of axial magnetic field on workpiece.
In above-mentioned yoke compound magnetizer for magnetic particle inspection, described contact rod is a contact rod.
In above-mentioned yoke compound magnetizer for magnetic particle inspection, each piece-holder piece comprises three contact rods and two blocks of siliconized plates, and described two blocks of siliconized plates are fixedly connected on described three upper and lower sides of contact rod respectively.
In above-mentioned yoke compound magnetizer for magnetic particle inspection, that end that described contact rod contacts with workpiece is provided with silver contact.
In above-mentioned yoke compound magnetizer for magnetic particle inspection, described piece-holder piece and described adjustable connection of vertical yoke.
The utility model compared with prior art has the following advantages and the high-lighting effect:
The utility model yoke compound magnetizer for magnetic particle inspection, simple in structure, can so that measured workpiece under same state, obtain stable, even, high-intensity axial magnetic field and Circumferential field, this week, vertically the resultant magnetization mode have that magnetic potential power is concentrated, low in energy consumption, magnetic field non-blind area and highly sensitive advantage, but one-time detection goes out workpiece the take up an official post crackle or the damage of what position, Any shape.But the utility model multistation design can be provided with three groups of contact rods in the piece-holder piece at the two ends of the vertical yoke of " U " type.In addition, because therefore described piece-holder piece and described adjustable connection of vertical yoke, can carry out bidirectional modulation according to the length of workpiece, it is very convenient to adjust maintenance.
Description of drawings
Yoke compound magnetizer for magnetic particle inspection of the present utility model is provided by following embodiment and accompanying drawing.
Fig. 1 is the structural representation of the utility model yoke compound magnetizer for magnetic particle inspection;
Fig. 2 is the diagrammatic top view that is connected of contact rod and siliconized plate;
Fig. 3 is the cut-open view of single contact rod and siliconized plate;
Fig. 4 is the circuit connection diagram that produces the workpiece axial magnetic field;
Fig. 5 is the circuit connection diagram that produces the workpiece Circumferential field.
Among the figure: the vertical yoke of 1-, 2-coil, 3-piece-holder piece, 31-contact rod, 311-silver contact, 32-siliconized plate, 4-lead, 5-workpiece.
Embodiment
Below will be described in further detail yoke compound magnetizer for magnetic particle inspection of the present utility model.
Below with reference to accompanying drawings the utility model is described in more detail, has wherein represented preferred embodiment of the present utility model, should be appreciated that those skilled in the art can revise the utility model described here and still realize advantageous effects of the present utility model.Therefore, following description is appreciated that extensively knowing for those skilled in the art, and not as to restriction of the present utility model.
For clear, whole features of practical embodiments are not described.In the following description, be not described in detail known function and structure, because they can make the utility model because unnecessary details and confusion.Will be understood that in the exploitation of any practical embodiments, must make a large amount of implementation details, for example, change into another embodiment by an embodiment according to relevant system or relevant commercial restriction to realize developer's specific objective.In addition, will be understood that this development may be complicated and time-consuming, but only be routine work to those skilled in the art.
For the purpose of this utility model, feature are become apparent, embodiment of the present utility model is further described below in conjunction with accompanying drawing.It should be noted that accompanying drawing all adopts very the form of simplifying and all uses non-ratio accurately, only in order to convenient, the purpose of aid illustration the utility model embodiment lucidly.
See also Fig. 1, Fig. 2 and Fig. 3, Figure 1 shows that the structural representation of the utility model yoke compound magnetizer for magnetic particle inspection; Figure 2 shows that the diagrammatic top view that is connected of contact rod 31 and siliconized plate 32; Figure 3 shows that the cut-open view of single contact rod 31 and siliconized plate 32.
This yoke compound magnetizer for magnetic particle inspection comprises vertical yoke 1 of " U " type, two piece-holder pieces 3 and around the home at the vertical coil 2 of yoke 1.Described piece-holder piece 3 is separately positioned on the two ends of vertical yoke 1.Be provided with the contact rod 31 that is used for holding workpiece 5 in the described piece-holder piece 3.The outside termination of described contact rod 31 is used for producing the alternating current of Circumferential field on workpiece 5,2 liang of terminations of described coil are used for producing the alternating current of axial magnetic field on workpiece 5.
Each piece-holder piece 3 comprises three contact rods 31 and two blocks of siliconized plates 32.In the present embodiment, described contact rod 31 is brass bars.Described two blocks of siliconized plates 32 are fixedly connected on three contact rods, 31 upper and lower sides respectively.The siliconized plate 32 that is embedded on the contact rod 31 can play the effect of drawing magnetic, makes magnetic potential power concentrate.
That end that described contact rod 31 contacts with workpiece 5 is provided with silver contact 311.Can avoid detected workpiece 5 to be burnt or electric injury by setting up silver contact 311.
Described piece-holder piece 3 and described vertical 1 adjustable connection of yoke.Therefore, can carry out bidirectional modulation according to the length of workpiece 5, with the expansion scope of application, and it is also very convenient to adjust maintenance.In addition, can the spring with adaptation function be set at the two ends of contact rod 31.
Principle of work of the present utility model is as follows:
When the workpiece 5 of spraying magnetic in advance is clamped between the contact rod 31, at vertical two termination alternating currents of the coil 2 of yoke 1 outer ring, see also Fig. 4 around the home, Figure 4 shows that the circuit connection diagram that produces workpiece 5 axial magnetic fields.This alternating current is a low-voltage and high-current.Siliconized plate 32 in described vertical yoke 1, the piece-holder piece and workpiece 5 constitute the magnetic circuit of an annular, pass through along axial (vertically) of workpiece 5, promptly produce axial magnetic field.Meanwhile, two termination alternating currents of the contact rod 31 of holding workpiece 5, the wiring situation makes on the workpiece 5 by the low-voltage and high-current alternating current, thereby produce Circumferential field on workpiece 5 as shown in Figure 5.Axial magnetic field on the workpiece 5 and Circumferential field mutual superposition make magnetic potential power concentrate.Therefore, fine cracks also can be high-visible on the workpiece 5.
The utility model yoke compound magnetizer for magnetic particle inspection, simple in structure, can be so that measured workpiece obtains to stablize simultaneously, even, high-intensity Circumferential field and axial (vertically) magnetic field, this week, vertically the resultant magnetization mode have that magnetic potential power is concentrated, low in energy consumption, magnetic field non-blind area and highly sensitive advantage, but one-time detection goes out workpiece the take up an official post crackle or the damage of what position, Any shape.But the utility model multistation design can be provided with three groups of contact rods at the piece-holder piece at the two ends of the vertical yoke of " U " type, thereby improve flaw detection efficient.
Obviously, those skilled in the art can carry out various changes and modification to the utility model and not break away from spirit and scope of the present utility model.Like this, if of the present utility model these are revised and modification belongs within the scope of the utility model claim and equivalent technologies thereof, then the utility model also is intended to comprise these changes and modification interior.
Claims (6)
1. yoke compound magnetizer for magnetic particle inspection, it is characterized in that, comprise vertical yoke of " U " type, two piece-holder pieces and around the home at the vertical coil of yoke, described piece-holder piece is separately positioned on the two ends of vertical yoke, is provided with the contact rod that is used for holding workpiece in the described piece-holder piece.
2. yoke compound magnetizer for magnetic particle inspection as claimed in claim 1 is characterized in that, the outside termination of described contact rod is used for producing the alternating current of Circumferential field on workpiece, and described coil two terminations are used for producing the alternating current of axial magnetic field on workpiece.
3. yoke compound magnetizer for magnetic particle inspection as claimed in claim 1 is characterized in that described contact rod is a brass bar.
4. yoke compound magnetizer for magnetic particle inspection as claimed in claim 1 is characterized in that, each piece-holder piece comprises three contact rods and two blocks of siliconized plates, and described two blocks of siliconized plates are fixedly connected on described three upper and lower sides of contact rod respectively.
5. pyramid as claimed in claim 1 is all pressed the chamber, it is characterized in that: that end that described contact rod contacts with workpiece is provided with silver contact.
6. yoke compound magnetizer for magnetic particle inspection as claimed in claim 1 is characterized in that, described piece-holder piece and described adjustable connection of vertical yoke.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010290980199U CN201653978U (en) | 2010-02-05 | 2010-02-05 | Yoke composite magnetizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010290980199U CN201653978U (en) | 2010-02-05 | 2010-02-05 | Yoke composite magnetizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201653978U true CN201653978U (en) | 2010-11-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010290980199U Expired - Fee Related CN201653978U (en) | 2010-02-05 | 2010-02-05 | Yoke composite magnetizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201653978U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103207233A (en) * | 2013-04-02 | 2013-07-17 | 盐城东车科技有限公司 | Magnetizer of large gear ring workpiece magnetic particle flaw detector |
-
2010
- 2010-02-05 CN CN2010290980199U patent/CN201653978U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103207233A (en) * | 2013-04-02 | 2013-07-17 | 盐城东车科技有限公司 | Magnetizer of large gear ring workpiece magnetic particle flaw detector |
| CN103207233B (en) * | 2013-04-02 | 2015-06-10 | 盐城东车科技有限公司 | Magnetizer of large gear ring workpiece magnetic particle flaw detector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101124 Termination date: 20140205 |