CN104979066A - 320-pole magnet ring with Z direction - Google Patents
320-pole magnet ring with Z direction Download PDFInfo
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- CN104979066A CN104979066A CN201510402381.0A CN201510402381A CN104979066A CN 104979066 A CN104979066 A CN 104979066A CN 201510402381 A CN201510402381 A CN 201510402381A CN 104979066 A CN104979066 A CN 104979066A
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Abstract
The invention discloses a 320-pole magnet ring with a Z direction. The 320-pole magnet ring is characterized in that the 320-pole magnet ring comprises an annular base layer and a ferrite layer disposed on the base layer in an injection moulding manner, 160 pairs of NS magnetic poles are magnetically arranged on an inner ring of the base layer, the 160 pairs of magnetic poles comprise 160 N single magnetic poles and 160 S single magnetic poles, a marking magnetic pole is composed of one of the N single magnetic poles and/or one of the S single magnetic poles, or two N single magnetic poles and one S single magnetic pole, or one N single magnetic pole and two S single magnetic poles in the 160 pairs of NS poles, and the height of the marking magnetic pole is 1.5 to 2 times of that of the other single magnetic poles in the 160 pairs of NS magnetic poles and equals the height of the base layer. The super-high magnetic pole is used as the marking magnetic pole, and thus an encoder can constantly detect the marking magnetic pole for verification, thereby avoiding the phenomenon of distortions caused by loss of signals in the prior art.
Description
Technical field
The present invention relates to a kind of magnet ring, particularly relate to a kind of 320 pole magnet rings with Z-direction, belong to the magnet ring encoder techniques in field of industrial automation control.
Background technology
Magnet ring encoder developed a kind of position transducer fast in recent years, is widely used in the system of field of industrial automation control and location, other exact positions, is especially used widely in the industry spot that environment is more severe.The magnet ring of existing magnet ring encoder, magnet ring outer ring evenly replaces equally spaced NS magnetic pole, and magnetic pole covers the whole width of magnet ring, general magnet pole widths is generally 1 millimeter, 1.2 millimeters and 5 millimeters, pole pair is generally 2 millimeters, 2.4 millimeters and 10 millimeters, and existing magnet ring is used for making magnet ring encoder, can not make circle physics Z phase out, electronics Z phase can only be gone out, understand lossing signal when applying magnetized encoder like this and can not get checking.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of 320 pole magnet rings with Z-direction, has one for identifying the Z-direction check digit of magnetic pole.
For solving the problems of the technologies described above, technical scheme of the present invention is: a kind of 320 pole magnet rings with Z-direction, its innovative point is: comprise basic unit in the form of a ring, the ferrite layer of injection mo(u)lding in described basic unit, on the inner ring of this basic unit successively magnetic be placed with 160 pairs of NS magnetic poles, described 160 pairs of NS magnetic poles comprise 160 mono-magnetic poles of N and 160 mono-magnetic poles of S, described mark magnetic pole is that in 160 pairs of NS magnetic poles, the mono-magnetic pole of one of them N and/or a mono-magnetic pole of S are formed, or be that two mono-magnetic poles of N and a mono-magnetic pole of S are formed, or be that a mono-magnetic pole of N and two mono-magnetic poles of S are formed, the height of described mark magnetic pole is 1.5 ~ 2 times of all the other single magnetic pole height in 160 pairs of NS magnetic poles, and the height of described mark magnetic pole equals the height of basic unit.
Preferably, described basic unit is the stainless steel steel ring that 304 stainless steel punching presses are formed.
Preferably, the internal diameter of described stainless steel steel ring is 180 mm.
Preferably, the thickness of described ferrite layer is 1 mm.
Preferably, the height of described mark magnetic pole is 2 times of all the other single magnetic pole height in 160 pairs of NS magnetic poles.
Preferably, in described 160 pairs of NS magnetic poles, the width of each single magnetic pole is 2m ± 0.05mm.
Preferably, the table magnetic after described 160 pairs of NS magnetic poles magnetic is 30-50MT.
The invention has the advantages that: by by the mono-magnetic pole of one of them N in 320 single magnetic poles and/or a mono-magnetic pole of S, or two mono-magnetic poles of N and a mono-magnetic pole of S, or a mono-magnetic pole of N and two mono-magnetic poles of S are as mark magnetic pole, the height of mark magnetic pole is designed to 2 times or 1.5 times of other single magnetic pole height, using the magnetic pole of this superelevation as mark magnetic pole, thus encoder work can detect the mark magnetic pole of this verification the moment, the distortion phenomenon that the dropout avoiding traditional approach appearance causes.After another volume production, magnet ring width and easily control, and magnet ring cost of manufacture can be reduced.Compared to traditional approach, there is following advantage in the present invention: 1. solve the problem that magnet ring encoder one encloses a physics Z phase completely, can detect in such application process to magnet ring encoder lossing signal.2. technological forming is all simple and reliable with magnetic, the magnetic pole after magnetic even, volume production good stability.3. steel ring is stainless steel, and permeability is low, can not have distortion to the magnetic field that magnetic pole produces.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Fig. 1 is the front view of a kind of 320 pole magnet rings with Z-direction of the present invention.
Fig. 2 is the structural representation of the first embodiment of a kind of 320 pole magnet rings with Z-direction of the present invention.
Fig. 3 is the structural representation of the second embodiment of a kind of 320 pole magnet rings with Z-direction of the present invention.
Fig. 4 is the structural representation of the 3rd embodiment of a kind of 320 pole magnet rings with Z-direction of the present invention.
Fig. 5 is the structural representation of the 4th embodiment of a kind of 320 pole magnet rings with Z-direction of the present invention.
Fig. 6 is the structural representation of the 5th embodiment of a kind of 320 pole magnet rings with Z-direction of the present invention.
In figure: 1-basic unit, 2-ferrite layer, the mono-magnetic pole of 3-N, the mono-magnetic pole of 4-S, 5-identify magnetic pole.
Embodiment
320 pole magnet rings of band Z-direction of the present invention comprise basic unit 1 in the form of a ring, the ferrite layer 2 of injection mo(u)lding in basic unit 1, on the inner ring of this basic unit 1 successively magnetic be placed with 160 pairs of NS magnetic poles, 160 pairs of NS magnetic poles comprise 160 mono-magnetic poles of N 3 and 160 mono-magnetic poles 4 of S.Present invention employs 5 embodiments, as shown in Figure 2, mark magnetic pole is that in 160 pairs of NS magnetic poles, the mono-magnetic pole of one of them N is formed to embodiment one.As shown in Figure 3, mark magnetic pole is that in 160 pairs of NS magnetic poles, the mono-magnetic pole of one of them S is formed to embodiment two.As shown in Figure 4, mark magnetic pole is that in 160 pairs of NS magnetic poles, the mono-magnetic pole of one of them S and a mono-magnetic pole of N are formed to embodiment three.As shown in Figure 5, mark magnetic pole is that in 160 pairs of NS magnetic poles, wherein two mono-magnetic poles of N and a mono-magnetic pole of S are formed to embodiment four.As shown in Figure 6, mark magnetic pole is that in 160 pairs of NS magnetic poles, the mono-magnetic pole of one of them N and two mono-magnetic poles of S are formed to embodiment five.The height of mark magnetic pole 5 is 1.5 ~ 2 times of all the other single magnetic pole height in 160 pairs of NS magnetic poles, and the height of mark magnetic pole 5 equals the height of basic unit 1.Above-mentioned basic unit 1 is the stainless steel steel ring that 304 stainless steel punching presses are formed, and the internal diameter of this stainless steel steel ring is 180 mm.The thickness of above-mentioned ferrite layer 2 is 1 mm.
When the height of above-mentioned mark magnetic pole 5 is 2 times of all the other single magnetic pole height in 160 pairs of NS magnetic poles, effect reaches best.In 160 pairs of above-mentioned NS magnetic poles, the width of each single magnetic pole is 2m ± 0.05mm, and the table magnetic after 160 pairs of NS magnetic poles magnetic is 30-50MT.
Magnet ring of the present invention identifies the height that magnetic pole 5 takes basic unit 1 when magnetic, other magnetic pole all identifies the certain height of magnetic pole 5 lower than this when magnetic, material is thus formed the physical layer of upper and lower two-layer magnetic pole, the read head of such magnet ring encoder can read bilevel physical message respectively, lower floor's 320 single magnetic poles (160 pole pair) is used as A, the physical basis of B phase, 1 magnetic pole exceeded is as a physics Z phase signals of a circle, like this when applying, work as A, during B phase lossing signal, can calibrate by Z phase, perfectly solve lossing signal problem.
Finally it should be noted that, above embodiment is only in order to illustrate technical scheme of the present invention and non-limiting technical scheme, those of ordinary skill in the art is to be understood that, those are modified to technical scheme of the present invention or equivalent replacement, and do not depart from aim and the scope of the technical program, all should be encompassed in the middle of right of the present invention.
Claims (7)
1. 320 pole magnet rings with Z-direction, it is characterized in that: comprise basic unit in the form of a ring, the ferrite layer of injection mo(u)lding in described basic unit, on the inner ring of this basic unit successively magnetic be placed with 160 pairs of NS magnetic poles, described 160 pairs of NS magnetic poles comprise 160 mono-magnetic poles of N and 160 mono-magnetic poles of S, mark magnetic pole is provided with in described 160 pairs of NS magnetic poles, described mark magnetic pole is that in 160 pairs of NS magnetic poles, the mono-magnetic pole of one of them N and/or a mono-magnetic pole of S are formed, or be that two mono-magnetic poles of N and a mono-magnetic pole of S are formed, or be that a mono-magnetic pole of N and two mono-magnetic poles of S are formed, the height of described mark magnetic pole is 1.5 ~ 2 times of all the other single magnetic pole height in 160 pairs of NS magnetic poles, and the height of described mark magnetic pole equals the height of basic unit.
2. a kind of 320 pole magnet rings with Z-direction as claimed in claim 1, is characterized in that: described basic unit is the stainless steel steel ring that 304 stainless steel punching presses are formed.
3. a kind of 320 pole magnet rings with Z-direction as claimed in claim 2, is characterized in that: the internal diameter of described stainless steel steel ring is 180 mm.
4. a kind of 320 pole magnet rings with Z-direction as claimed in claim 1, is characterized in that: the thickness of described ferrite layer is 1 mm.
5. a kind of 320 pole magnet rings with Z-direction as claimed in claim 1, is characterized in that: the height of described mark magnetic pole is 2 times of all the other single magnetic pole height in 160 pairs of NS magnetic poles.
6. a kind of 320 pole magnet rings with Z-direction as claimed in claim 1, is characterized in that: in described 160 pairs of NS magnetic poles, the width of each single magnetic pole is 2m ± 0.05mm.
7. a kind of 320 pole magnet rings with Z-direction as claimed in claim 1, is characterized in that: the table magnetic after described 160 pairs of NS magnetic poles magnetic is 30-50MT.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510402381.0A CN104979066A (en) | 2015-07-10 | 2015-07-10 | 320-pole magnet ring with Z direction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510402381.0A CN104979066A (en) | 2015-07-10 | 2015-07-10 | 320-pole magnet ring with Z direction |
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| Publication Number | Publication Date |
|---|---|
| CN104979066A true CN104979066A (en) | 2015-10-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510402381.0A Pending CN104979066A (en) | 2015-07-10 | 2015-07-10 | 320-pole magnet ring with Z direction |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5625353A (en) * | 1992-12-29 | 1997-04-29 | Kabushiki Kaisha Sankyo Seiki Seisakusho | Device for transmitting signals from position detector and method of such signal transmission |
| DE19758037A1 (en) * | 1996-12-27 | 1998-07-02 | Electricfil | Coder for position and measuring sensor for automobile ignition system |
| CN1598493A (en) * | 2004-08-13 | 2005-03-23 | 北京科技大学 | Method for mfg. magnetic drum of high resolution magnetic-encoded device |
| CN1934421A (en) * | 2004-01-22 | 2007-03-21 | 日本精工株式会社 | Magnetic encoder and bearing |
-
2015
- 2015-07-10 CN CN201510402381.0A patent/CN104979066A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5625353A (en) * | 1992-12-29 | 1997-04-29 | Kabushiki Kaisha Sankyo Seiki Seisakusho | Device for transmitting signals from position detector and method of such signal transmission |
| DE19758037A1 (en) * | 1996-12-27 | 1998-07-02 | Electricfil | Coder for position and measuring sensor for automobile ignition system |
| CN1934421A (en) * | 2004-01-22 | 2007-03-21 | 日本精工株式会社 | Magnetic encoder and bearing |
| CN1598493A (en) * | 2004-08-13 | 2005-03-23 | 北京科技大学 | Method for mfg. magnetic drum of high resolution magnetic-encoded device |
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Application publication date: 20151014 |