CN103959054B - The magnetic powder inspection magnetizing assembly of wheel - Google Patents
The magnetic powder inspection magnetizing assembly of wheel Download PDFInfo
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- CN103959054B CN103959054B CN201280058025.6A CN201280058025A CN103959054B CN 103959054 B CN103959054 B CN 103959054B CN 201280058025 A CN201280058025 A CN 201280058025A CN 103959054 B CN103959054 B CN 103959054B
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- wheel
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- magnetic flux
- pair
- described wheel
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- 239000006247 magnetic powder Substances 0.000 title claims abstract description 38
- 238000007689 inspection Methods 0.000 title claims abstract description 33
- 239000004020 conductor Substances 0.000 claims abstract description 128
- 230000004907 flux Effects 0.000 claims abstract description 117
- 238000010586 diagram Methods 0.000 description 5
- 230000005415 magnetization Effects 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005755 formation reaction Methods 0.000 description 2
- 230000002035 prolonged Effects 0.000 description 2
- 235000006696 Catha edulis Nutrition 0.000 description 1
- 240000007681 Catha edulis Species 0.000 description 1
- 210000003491 Skin Anatomy 0.000 description 1
- 230000003467 diminishing Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Abstract
The present invention provides the magnetic powder inspection magnetizing assembly of a kind of magnetic flux density at the circumferentially extending magnetic flux along this wheel being able to ensure that from the wheel hub of wheel to the scope of wheel rim in the space near two sides of wheel.The present invention is the magnetic powder inspection magnetizing assembly (100) at the wheel (7) radially including wheel hub (71), spoke (72) and wheel rim (73) from Inside To Outside successively, it is characterized in that, magnetic powder inspection magnetizing assembly (100) including: conductor (1), and it runs through the hole (711) of wheel hub (71)；A pair auxiliary conductor (2), it two ends with conductor (1) is connected respectively, and this pair auxiliary conductor is respectively facing two sides of wheel (7) and extend to be passed through in wheel rim (73), conductor 801 (1) and a pair auxiliary conductor (2) to the radial outside of wheel (7) from wheel hub (71) is alternating current.
Description
Technical field
The present invention relates to the magnetic powder inspection magnetizing assembly of a kind of wheel.The present invention be more particularly directed to a kind of from the wheel of wheel
Hub is in the scope of wheel rim, it is possible to substantially ensure that the circumferentially extending magnetic flux along this wheel in the space near wheel two sides
The magnetic powder inspection magnetizing assembly of magnetic flux density.
Background technology
All the time, magnaflux is widely used in and includes wheel hub, spoke and wheel rim from radially inner side the most successively
The QAT of railway wheel (hereinafter referred to as " wheel ").
Such as, the device described in patent documentation 1 is i.e. a kind of magnetic powder inspection device that wheel carries out magnetic powder inspection.
The institute that the purpose of the magnetic powder inspection device described in patent documentation 1 it is possible to surface whole to wheel is directive
Defect detects, and this device includes that the electric current being passed through DC current inserting in the hole of wheel hub runs through pole and is respectively facing wheel
A pair magnetizing coil being passed through alternating current of two sides configuration.
According to the magnetic powder inspection device described in patent documentation 1, formed along wheel week owing to utilizing described electric current to run through pole
To the magnetic flux extended, it is possible to detect the radial defect extended radially centered by the hole of wheel hub.It addition, utilize
Described magnetizing coil forms the magnetic flux that radially extends along wheel, and it is possible to detect centered by the hole of described wheel hub is concentric
The circumference defect that round shape extends.
Patent documentation 1 shows and uses the A type code test sheet specified by JIS (Japanese Industrial Standards) to carry out defect
The assessment of power of test, it is possible to be clearly observed magnetic powder pattern.
On the other hand, in Europe, the manufacturer's standard of rail car wheel is BN918277 and EN13262 etc..At BN918277
In, it is desirable to the magnetic flux density that the space near two sides of the wheel in magnetization is formed is 2.5mT～8.2mT.It addition,
In EN13262, it is desirable to the magnetic flux density in space near two sides of the wheel in magnetization is more than or equal to 4mT.
Patent documentation: Japanese Unexamined Patent Publication 2003-344359 publication
The problem that invention is to be solved
According at the magnetic powder inspection device described in patent documentation 1, as mentioned above, it is possible to clearly at code test sheet
The magnetic powder pattern of middle formation is observed.
But, during expanding Europe wheel market, present inventors understand that and using described in patent documentation 1
During magnetic powder inspection device, the magnetic flux density of the magnetic flux formed in the space near two sides of wheel is (especially along wheel week
Magnetic flux density to the magnetic flux extended) it is unsatisfactory for above-mentioned European standard.
Summary of the invention
In view of such prior art, the problem of the present invention is to provide the magnetic powder inspection magnetizing assembly of a kind of wheel, should
The magnetic powder inspection magnetizing assembly of wheel can substantially ensure that two sides of wheel in the range of the wheel hub of wheel to wheel rim
The magnetic flux density of the neighbouring circumferentially extending magnetic flux along this wheel in space.
For solving the scheme of problem
In order to solve the problems referred to above, the invention provides the magnetic powder inspection magnetizing assembly of a kind of wheel, this wheel is along footpath
To including wheel hub, spoke and wheel rim successively from Inside To Outside, it is characterised in that: the magnetic powder inspection magnetizing assembly of this wheel
Including: conductor, it runs through the hole of described wheel hub；A pair auxiliary conductor, it is connected with two ends of described conductor respectively, it
Be respectively facing two sides of described wheel and arrange and extend to described wheel from described wheel hub to the radial outside of described wheel
Edge, be passed through to described conductor and a pair auxiliary conductor is alternating current.
The magnetic powder inspection magnetizing assembly of the wheel of the present invention includes the conductor running through wheel bore, is being passed through electricity to this conductor
The concentric circles magnetic flux centered by the central axis of conductor is formed during stream.That is, the circumferentially extending magnetic flux along wheel is defined.
The magnetic flux density of the magnetic flux formed by conductor is along with diminishing away from conductor (i.e. along with near wheel rim).
It addition, the magnetic powder inspection magnetizing assembly of the wheel of the present invention includes that a pair auxiliary conductor, the pair of auxiliary are led
Body is connected with two ends of described conductor respectively, and the pair of auxiliary conductor is respectively facing two sides of wheel and arranges also
Wheel rim is extended to the radial outside of wheel from wheel hub.That is, of an auxiliary conductor in a pair auxiliary conductor and conductor
End is connected, and extends towards the one side of wheel along wheel radially outward side.Further, another in a pair auxiliary conductor
Auxiliary conductor is connected with another end of conductor, extends towards the another side of wheel along wheel radially outward side.And,
When being passed through electric current to this pair auxiliary conductor, formation concentric circles centered by the central axis of the two auxiliary conductor
Magnetic flux.As previously described, because each auxiliary conductor is connected with the end of conductor, and extend along wheel radially outward side, therefore,
Circumferentially extending along wheel of the magnetic flux formed by the two auxiliary conductor, this magnetic flux towards (being formed at auxiliary conductor and car
Flow direction between wheel side) with described conductor formed magnetic flux towards identical.It is additionally, since the two auxiliary conductor from car
Wheel wheel hub extend to wheel rim, therefore, the two auxiliary conductor the magnetic flux density of the magnetic flux formed from the wheel hub of wheel to
In the range of wheel rim essentially identical.Therefore, compared with the situation of individualism conductor, conductor and a pair auxiliary conductor are formed
Magnetic flux density along the circumferentially extending magnetic flux of wheel increases, meanwhile, compared with the situation of individualism conductor, it is easier to make from car
The wheel hub of wheel is impartial to the magnetic flux density of the magnetic flux in the scope of wheel rim.And, if making wheel circumferentially when magnetizing wheel
Rotate, then for the space near two sides of wheel generally, it is possible to make the magnetic flux along the circumferentially extending magnetic flux of wheel close
Degree strengthens, and easily makes the magnetic flux density equalization from the wheel hub of wheel to the scope of wheel rim.
And, for the magnetic powder inspection magnetizing assembly of the wheel of the present invention, at conductor 801 and a pair auxiliary conductor with logical
After entering alternating current, due to kelvin effect so that flux concentrating is near two sides of wheel, it is possible to increase at wheel
The magnetic flux density that space near two sides is formed.
In sum, the magnetic powder inspection magnetizing assembly of the wheel of the present invention is from the wheel hub of wheel to the scope of wheel rim
The magnetic flux density of the circumferentially extending magnetic flux along wheel in the space near two sides of wheel can be substantially ensured that.
The preferably magnetic powder inspection magnetizing assembly of the wheel of the present invention also has a pair magnetizing coil, this pair magnetizing coil
Being configured to, axis direction is respectively facing two sides of described wheel, and be passed through to this pair magnetizing coil is alternating current.
According to above-mentioned preferable configuration, being configured to by a pair magnetizing coil being passed through alternating current, axis direction is respectively facing
Two sides of wheel a, i.e. magnetizing coil in a pair magnetizing coil is configured to axis direction one towards wheel
Side.It addition, the another one magnetizing coil in a pair magnetizing coil to be configured to axis direction another side towards wheel
Face.This pair magnetizing coil forms the magnetic flux radially extended along wheel.
According to above-mentioned preferable configuration, it is as noted previously, as and utilizes conductor and a pair auxiliary conductor to form the circumference along wheel
The magnetic flux extended, and utilize a pair magnetizing coil to form the magnetic flux radially extended along wheel, therefore, it is possible to two sides to wheel
Circumference in face and defect radially are detected a flaw.
The effect of invention
In accordance with the invention it is possible to substantially ensuring that from the wheel hub of wheel to the scope of wheel rim near two sides of wheel
The magnetic flux density of the circumferentially extending magnetic flux along this wheel in space.Therefore, by setting the electric current of alternating current aptly
Value and do not make current value excessive such that it is able to meet Europe standard BN918277 and EN13262.
Accompanying drawing explanation
Fig. 1 is to represent that wheel is carried out magnetized by the magnetic powder inspection magnetizing assembly using an embodiment of the invention
The summary construction diagram of state.
Fig. 2 illustrates the magnetic utilizing magnetic powder inspection magnetizing assembly as shown in Figure 1 to determine near wheel face in space
One example of the result of flux density.
Fig. 3 is to represent for commenting the Flaw detectability during magnetic powder inspection magnetizing assembly utilized shown in Fig. 1
Valency and the schematic diagram of code test sheet that uses.
Fig. 4 is attached to an example of the magnetic powder pattern on the code test sheet shown in Fig. 3.
Detailed description of the invention
Hereinafter, referring to the drawings, an embodiment of the invention is illustrated.
Fig. 1 is to represent that wheel is carried out magnetized by the magnetic powder inspection magnetizing assembly using an embodiment of the invention
The summary construction diagram of state.Fig. 1 (a) is the front view observed from the axially vertical direction with wheel.In Fig. 1 (a), to cut open
Face represents wheel.Fig. 1 (b) is the top view observed from the direction of principal axis of wheel.Fig. 1 (b) eliminates magnetizing coil and alternating current
The diagram in source.
As it is shown in figure 1, the magnetic powder inspection magnetizing assembly of present embodiment (hereinafter referred to as " magnetizing assembly ") 100 is car
The magnetic powder inspection magnetizing assembly of wheel 7, this wheel 7 radially has wheel hub 71, spoke 72 and wheel rim successively from Inside To Outside
73。
Magnetizing assembly 100 include conductor 1 and be connected with two ends of conductor 1 respectively a pair auxiliary conductor 2 (2A,
2B).Magnetizing assembly 100 also has the alternating current power supply 4 being connected with two auxiliary conductors 2A, 2B.
Conductor 1 is the most made of copper, through the hole (running through the hole of axletree) 711 on the wheel hub 71 being located at wheel 7.This
Conductor 1 in embodiment is made up of columned pair of conductors part 1A, 1B, and its configuration status is, two conductors 1A, 1B divide
Not do not insert in hole 711 from the side of wheel 7 (with the axially vertical side of wheel 7), make that two conductors 1A, 1B's is relative
End is formed each other and abuts against.
By utilizing alternating current power supply 4 to supply alternating current to two auxiliary conductors 2A, 2B, thus also conductor 801 1 is passed through friendship
Stream electric current.
After conductor 801 1 is passed through alternating current, define the magnetic flux of concentric circles centered by the central axis of conductor 1
B1.That is, the circumferentially extending magnetic flux B1 along wheel 7 is defined.The magnetic flux density of the magnetic flux B1 formed by this conductor 1 is, along with
Reduce away from conductor 1 (that is, along with near wheel rim 73).
It addition, the magnetic flux B1 shown in Fig. 1 (b) is to flow through conductor 1 at electric current from the inboard, lateral in the direction of vertical paper
State under formed magnetic flux.
A pair auxiliary conductor 2 is the most made of copper, as it was previously stated, a pair auxiliary conductor 2 respectively with two ends of conductor 1
Connect.Specifically, in the present embodiment, the end of an an auxiliary conductor 2A and conductors 1A is not (with conductors 1B
Abut the end of this side) it is connected, the end of another auxiliary conductor 2B and another conductors 1B (is not supported with conductors 1A
Connect the end of this side) it is connected.A pair auxiliary conductor 2 in present embodiment makes elongated tabular, each towards car
Two sides of wheel 7 are arranged, and from wheel hub 71, the radial outside to wheel 7 extends to wheel rim 73.
Although under the present embodiment, from the end on observation of wheel 7, two auxiliary conductors 2A, 2B are substantially assemblied in same
Position, but this is not limiting as by the present invention.For example, it is also possible to be configured to, from the end on observation of wheel 7, auxiliary conductor 2A and
Auxiliary conductor 2B is perpendicular and makes auxiliary conductor 2A contrary with the bearing of trend of auxiliary conductor 2B.
By utilizing alternating current power supply 4 to supply alternating current to the end of two auxiliary conductors 2A, 2B, thus to two auxiliary
Conductor 2A and 2B is passed through alternating current.By being passed through alternating current to two auxiliary conductor 2A and 2B, thus define with two
The magnetic flux B2 of the concentric circles centered by the central axis of auxiliary conductor 2A, 2B.As it was previously stated, two auxiliary conductors 2A, 2B with
The end of conductor 1 is connected, and along the radially outward side extension of wheel 7, therefore, two auxiliary conductors 2A, 2B is formed
Magnetic flux B2 is circumferentially extending along wheel 7, and this magnetic flux B2 towards (magnetic flux B2 is formed at auxiliary conductor 2 and the side of wheel 7
Between face towards) with conductor 1 formed magnetic flux B1 towards identical.Further, since two auxiliary conductors 2A, 2B are from wheel 7
Wheel hub 71 extend to wheel rim 73, therefore, wheel 7 from wheel hub 71 to the scope of wheel rim 73, by two auxiliary conductor 2A,
The magnetic flux density of the magnetic flux B2 that 2B is formed is unanimous on the whole.
It addition, the magnetic flux B2 shown in Fig. 1 (b) is to flow through auxiliary conductor 2A from wheel rim 73 side to wheel hub 71 side at electric current
The state state of conductor 1 (electric current flow through inside the lateral in the direction of vertical paper) under the magnetic flux that formed.
Therefore, compared with the situation of individualism conductor 1, by conductor 1 and a pair auxiliary conductor 2 formed along wheel 7
The magnetic flux density of circumferentially extending magnetic flux (magnetic flux that magnetic flux B1, magnetic flux B2 are formed by stacking) increases, and, with individualism conductor
The situation of 1 is compared, easily make wheel 7 from wheel hub 71 to the scope of wheel rim 73 the magnetic flux density of magnetic flux uniform.And, as
Fruit makes wheel circumferentially rotate when magnetizing wheel 7, then for the space near wheel 7 two sides generally, and energy
Enough make the magnetic flux density along the circumferentially extending magnetic flux of wheel 7 increase, and easily make the model from the wheel hub 71 of wheel 7 to wheel rim 73
Enclose interior magnetic flux density homogenization.
And, magnetizing assembly 100 is passed through alternating current by conductor 801 1 and a pair auxiliary conductor 2, thus utilizes collection skin
Effect so that flux concentrating is near two sides of wheel 7, it is possible to increase in the space near two sides of wheel 7
Magnetic flux density.
As it has been described above, according to the magnetizing assembly 100 of present embodiment, in the scope from the wheel hub 71 of wheel 7 to wheel rim 73
In, it is possible to substantially ensure that the magnetic flux density of the circumferentially extending magnetic flux along wheel 7 in the space near the two sides of wheel 7.
It addition, the preferred structure as the magnetizing assembly 100 of present embodiment is, including a pair magnetizing coil 3 (3A,
3B), it is configured to, and the direction of axis 3N is respectively facing two sides of wheel 7.Specifically, two magnetizing coils 3A, 3B are
The wire wound by the axis 3N round the side towards wheel 7 is formed, and is configured to the axis of axis 3N and wheel 7 about
Unanimously.It addition, magnetizing assembly 100 includes the alternating current power supply 5 being connected with magnetizing coil 3A and is connected with magnetizing coil 3B
Alternating current power supply 6.
By supplying alternating current from alternating current power supply 5 to magnetizing coil 3A, thus it is passed through alternating current to magnetizing coil 3A,
Form the magnetic flux (magnetic flux extended radially centered by the axis of wheel 7) radially extended along wheel 7.Similarly, logical
Cross and supply alternating current from alternating current power supply 6 to magnetizing coil 3B, thus be passed through alternating current to magnetizing coil 3B, formed along wheel
The magnetic flux radially extended of 7.
Magnetizing assembly 100 according to present embodiment, is formed owing to utilizing as discussed above conductor 1 and a pair auxiliary conductor 2
Along the circumferentially extending magnetic flux of wheel 7, form the magnetic flux radially extended along wheel 7 furthermore with a pair magnetizing coil 3, because of
This, the circumference of two sides and the defect of radial direction for wheel 7 can be detected a flaw.
Embodiment
Hereinafter, embodiments of the invention are illustrated.
Use and include that wheel 7 is magnetized by the magnetizing assembly 100 of structure as previously mentioned, carried out now wheel 7 side
Magnetic flux density in space near face (along the magnetic flux density of circumferentially extending magnetic flux of wheel 7 and is prolonged along the radial direction of wheel 7
The magnetic flux density of the magnetic flux stretched) test that is measured.
Specifically, by utilizing alternating current power supply 4 to supply alternating currents to two auxiliary conductors 2A, 2B, thus conductor 801 1
And two auxiliary conductors 2A, 2B are passed through alternating current, determine now close along the magnetic flux of the circumferentially extending magnetic flux of wheel 7
Degree.
It follows that stopping after alternating current power supply 4 supplies alternating current, supplying to magnetizing coil 3A from alternating current power supply 5
While alternating current, supply alternating current from alternating current power supply 6 to magnetizing coil 3B, thus to two magnetizing coils 3A, 3B
It is passed through alternating current, determines now along the magnetic flux density of the magnetic flux radially extended of wheel 7.
And, as the comparative example of the present invention, test as follows: with the device phase described in described patent documentation 1
With ground, being not provided with a pair auxiliary conductor 2, by supplying DC current from DC source conductor 801 1, conductor 801 1 is passed through unidirectional current
Stream, is measured at this moment magnetic flux density along the circumferentially extending magnetic flux of wheel 7.
It addition, the De イ ト ロ メ タ using Japan マ テ ッ Network company to manufacture carries out the magnetic flux in embodiment and comparative example
The mensuration of density.
Fig. 2 represents an example of the result determining magnetic flux density in the test of described above.Fig. 2 (a) is to survey
Make the explanatory diagram that the position (A, B, C) of magnetic flux density illustrates.The position represented by reference A in Fig. 2 (a) is wheel
Position, space between wheel rim 73 and the auxiliary conductor 2A of 7.It addition, the position represented by reference B is the spoke 72 of wheel 7
Position, space between (central authorities of spoke 72) and auxiliary conductor 2A.Further, reference number C the position represented is wheel 7
Position, space between wheel hub 71 and auxiliary conductor 2A.Fig. 2 (b) represents that each position shown in Fig. 2 (a) determines edge
The result of the magnetic flux density of the circumferentially extending magnetic flux of wheel 7.Fig. 2 (c) represents in each position mensuration shown in Fig. 2 (a)
Go out the result of the magnetic flux density of the magnetic flux radially extended along wheel 7.
Understand as shown in the embodiment of Fig. 2 (b), in the magnetizing assembly 100 of present embodiment, by auxiliary conductor 2
With the alternating current that conductor 1 is passed through 4500A, thus position A (position, space near wheel rim 73), position B are (near spoke 72
Position, space) and position C (position, space near wheel hub 71) the circumferentially extending magnetic flux along wheel 7 magnetic flux density all
Meet 2.5mT～8.2mT of regulation in standard BN918277.And, learn, the circumference along wheel 7 of position A～position C
The magnetic flux density of the magnetic flux extended the most all meets the regulation more than or equal to 4mT in standard EN13262.
Meanwhile, as shown in the comparative example of Fig. 2 (b), in the case of only conductor 801 1 is passed through DC current, even if by its electricity
Flow valuve is set as that the magnetic flux density along the circumferentially extending magnetic flux of wheel 7 of 6000A, the most only position C meets standard significantly
BN918277.The magnetic flux density along the circumferentially extending magnetic flux of wheel 7 of position A to position C is all unsatisfactory for standard EN13262.
Assume that then position A is to position C's if able to the current value being passed through conductor 1 brings up to 6 times (36000A) left and right
Magnetic flux density along the circumferentially extending magnetic flux of wheel 7 is likely to meet the regulation of standard EN13262.But, due to position C
Magnetic flux density excessive, the probability of the regulation that therefore cannot meet standard BN918277 is the biggest.
So, according to the magnetizing assembly 100 of present embodiment, owing to utilizing conductor 1 and a pair auxiliary conductor 2 to form magnetic
Logical, therefore, with the electric current less than the electric current of the situation of individualism conductor 1, magnetic flux density just can be increased, meanwhile, single with conductor 1
Situation about solely existing is compared, and easily makes the magnetic flux density equalization in the range of wheel hub 71 to wheel rim.Therefore, the most easily
Meet standard BN918277 and standard EN13262.
It addition, as shown in the embodiment 2 of Fig. 2 (c), learn, by the line of magnetization by the magnetizing assembly 100 of present embodiment
The number of turn of circle 3 selects 5 circles, is passed through the alternating current of 3000A, thus the radial direction along wheel 7 of position A, position B and position C is prolonged
The magnetic flux density of the magnetic flux stretched all meets 2.5mT～8.2mT specified by standard BN918277.But, position A along wheel 7
The regulation more than or equal to 4mT that is somewhat unsatisfactory in standard EN13262 of the magnetic flux density of the magnetic flux radially extended.
Therefore, as shown in the embodiment 1 of Fig. 2 (c), the number of turn of magnetizing coil 3 is increased to 7 circles from 5 circles, improve magnetization strong
After degree, the magnetic flux density along the magnetic flux radially extended of wheel 7 of position A to position C all meets standard BN918277 and standard
The regulation of both EN13262.
It addition, use the magnetizing assembly 100 of present embodiment that wheel 7 is magnetized, carry out using as shown in Figure 3
The test that Flaw detectability is evaluated by the code test sheet (ASTM CX-230) specified by ASTM.Fig. 4 shows and passes through
This experimental observation to an example of the magnetic powder pattern being attached on code test sheet.
Magnetizing assembly 100 according to present embodiment, as it was previously stated, be passed through the individualism conductor 1 than prior art
The electric current of situation little electric current time, magnetic flux density will be made to increase, meanwhile, with individualism conductor 1 of the prior art
Situation is compared, it is possible to obtaining uniform magnetic flux density from wheel hub 71 in the scope of wheel rim 73.Therefore, certifiable is can
Observe and in the past equal clear or more clearly magnetic powder pattern.
Description of reference numerals
1 ... conductor
1A, 1B ... conductors
2,2A, 2B ... auxiliary conductor
3,3A, 3B ... magnetizing coil
4,5,6 ... alternating current power supply
7 ... wheel
71 ... wheel hub
72 ... spoke
73 ... wheel rim
100 ... magnetic powder inspection magnetizing assembly
711 ... the hole of wheel hub
Claims (2)
1. a magnetic powder inspection magnetizing assembly for wheel, this wheel radially includes wheel hub, spoke successively from inboard to outside
And wheel rim, it is characterised in that
Described wheel magnetic powder inspection magnetizing assembly includes:
Conductor, it runs through the hole of described wheel hub；And
A pair auxiliary conductor, this pair auxiliary conductor have be connected with described conductor end and with the one of described wheel
Side face to face along the radial outside of described wheel from described wheel hub extend to described wheel rim an auxiliary conductor and
It is connected with another end of described conductor and with the another side of described wheel face to face along the radial direction of described wheel
Outside extends to another auxiliary conductor of described wheel rim from described wheel hub,
By being passed through alternating current to described conductor and the pair of auxiliary conductor, thus utilize by described conductor formed along
The circumferentially extending magnetic flux of described wheel and being formed by the pair of auxiliary conductor and along the circumferentially extending of described wheel and court
To with the magnetic flux formed by described conductor towards identical magnetic flux, described wheel is magnetized.
The magnetic powder inspection magnetizing assembly of wheel the most according to claim 1, it is characterised in that
The magnetic powder inspection magnetizing assembly of described wheel also includes a pair magnetizing coil, and this pair magnetizing coil has axis direction
Arrange and be passed into a magnetizing coil of alternating current and axis direction and institute face to face with the one side of described wheel
The another side stating wheel arranges and is passed into another magnetizing coil of alternating current face to face.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011-208707 | 2011-09-26 | ||
| JP2011208707A JP5729824B2 (en) | 2011-09-26 | 2011-09-26 | Magnetizer for magnetic particle inspection of wheels |
| PCT/JP2012/070160 WO2013046944A1 (en) | 2011-09-26 | 2012-08-08 | Magnetizing device for magnetic particle inspection of wheel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103959054A CN103959054A (en) | 2014-07-30 |
| CN103959054B true CN103959054B (en) | 2016-11-30 |
Family
ID=
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR810869A (en) * | 1936-07-18 | 1937-04-01 | Method for examining the walls of rivet holes, bolt holes and the like | |
| FR2094390A5 (en) * | 1970-06-19 | 1972-02-04 | Fluxo | |
| JPS55165266U (en) * | 1979-05-17 | 1980-11-27 | ||
| JP2003344359A (en) * | 2002-05-28 | 2003-12-03 | Sumitomo Metal Ind Ltd | Method and apparatus for magnetic particle inspection |
| JP2010083470A (en) * | 2008-09-03 | 2010-04-15 | Railway Technical Res Inst | Soundproof cover of wheel for railroad vehicle |
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR810869A (en) * | 1936-07-18 | 1937-04-01 | Method for examining the walls of rivet holes, bolt holes and the like | |
| FR2094390A5 (en) * | 1970-06-19 | 1972-02-04 | Fluxo | |
| JPS55165266U (en) * | 1979-05-17 | 1980-11-27 | ||
| JP2003344359A (en) * | 2002-05-28 | 2003-12-03 | Sumitomo Metal Ind Ltd | Method and apparatus for magnetic particle inspection |
| JP2010083470A (en) * | 2008-09-03 | 2010-04-15 | Railway Technical Res Inst | Soundproof cover of wheel for railroad vehicle |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Tokyo, Japan, Japan Patentee after: Nippon Iron & Steel Corporation Address before: Tokyo, Japan, Japan Patentee before: Nippon Steel Corporation |