CN204991330U - Take Z to N formula 128 utmost point magnetic rings - Google Patents
Take Z to N formula 128 utmost point magnetic rings Download PDFInfo
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- CN204991330U CN204991330U CN201520494078.3U CN201520494078U CN204991330U CN 204991330 U CN204991330 U CN 204991330U CN 201520494078 U CN201520494078 U CN 201520494078U CN 204991330 U CN204991330 U CN 204991330U
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Abstract
The utility model discloses a take Z to N formula 128 utmost point magnetic rings, its characteristic points lies in: including be annular basic unit, injection moulding is in ferrite layer in the basic unit is circling in proper order the magnetism 64 pairs of NS magnetic poles of having arranged in this basic unit, 64 include 64 N single -pole and 64 S single -pole to the NS magnetic pole, 64 be the sign magnetic pole to there being a N single -pole in the NS magnetic pole, the height of sign magnetic pole is 1.5-2 times of in 64 pairs of NS magnetic poles all the other single -pole height, just the height that highly equals the basic unit of sign magnetic pole. High design through one of them S single -pole with among 128 single -pole or N single -pole is 2 times or 1.5 times of other single -pole height, regards magnetic pole of this superelevation as the sign magnetic pole to encoder work can detect the sign magnetic pole that this check -up was used constantly, and the distorting phenomenon who causes is lost to the signal of having avoided traditional mode to appear.
Description
Technical field
The utility model relates to a kind of magnet ring, particularly relates to a kind of N formula 128 pole magnet ring with Z-direction, belongs 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.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of N formula 128 pole magnet ring with Z-direction, has one for identifying the Z-direction check digit of magnetic pole.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of N formula 128 pole magnet ring 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 64 pairs of NS magnetic poles, described 64 pairs of NS magnetic poles comprise 64 mono-magnetic poles of N and 64 mono-magnetic poles of S, a mono-magnetic pole of N is had for mark magnetic pole in described 64 pairs of NS magnetic poles, the height of described mark magnetic pole is 1.5 ~ 2 times of all the other single magnetic pole height in 64 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 180mm.
Preferably, the thickness of described ferrite layer is 1mm.
Preferably, the height of described mark magnetic pole is 2 times of all the other single magnetic pole height in 64 pairs of NS magnetic poles.
Preferably, in described 64 pairs of NS magnetic poles, the width of each single magnetic pole is 5m ± 0.05mm.
Preferably, the table magnetic after described 64 pairs of NS magnetic poles magnetic is 30-50MT.
The utility model has the advantage of: by the height of the mono-magnetic pole of one of them S in 128 single magnetic poles or the mono-magnetic pole of N being 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 utility model: 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 utility model is described in further detail.
Fig. 1 is the front view of a kind of N formula 128 pole magnet ring with Z-direction of the utility model.
Fig. 2 is the A-A cutaway view of Fig. 1.
Fig. 3 is that the B of Fig. 2 is to partial enlarged drawing.
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
A kind of N formula 128 pole magnet ring with Z-direction of the present utility model comprises 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 64 pairs of NS magnetic poles, 64 pairs of NS magnetic poles comprise 64 mono-magnetic poles of N 3 and 64 mono-magnetic poles 4 of S, a mono-magnetic pole of N is had for mark magnetic pole 5 in 64 pairs of NS magnetic poles, the height of mark magnetic pole 5 is 1.5 ~ 2 times of all the other single magnetic pole height in 64 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 180mm.The thickness of above-mentioned ferrite layer 2 is 1mm.
When the height of above-mentioned mark magnetic pole 5 is 2 times of all the other single magnetic pole height in 64 pairs of NS magnetic poles, effect reaches best.In 64 pairs of above-mentioned NS magnetic poles, the width of each single magnetic pole is 5m ± 0.05mm, and the table magnetic after 64 pairs of NS magnetic poles magnetic is 30-50MT.
Magnet ring of the present utility model only has 1 mark magnetic pole 5 to take the height of 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 128 single magnetic poles (64 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 (6)
1. the N formula 128 pole magnet ring 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 64 pairs of NS magnetic poles, described 64 pairs of NS magnetic poles comprise 64 mono-magnetic poles of N and 64 mono-magnetic poles of S, a mono-magnetic pole of N is had for mark magnetic pole in described 64 pairs of NS magnetic poles, the height of described mark magnetic pole is 1.5 ~ 2 times of all the other single magnetic pole height in 64 pairs of NS magnetic poles, and the height of described mark magnetic pole equals the height of basic unit.
2. a kind of N formula 128 pole magnet ring 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 N formula 128 pole magnet ring with Z-direction as claimed in claim 2, is characterized in that: the internal diameter of described stainless steel steel ring is 180mm.
4. a kind of N formula 128 pole magnet ring with Z-direction as claimed in claim 1, is characterized in that: the thickness of described ferrite layer is 1mm.
5. a kind of N formula 128 pole magnet ring 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 64 pairs of NS magnetic poles.
6. a kind of N formula 128 pole magnet ring with Z-direction as claimed in claim 1, is characterized in that: in described 64 pairs of NS magnetic poles, the width of each single magnetic pole is 5m ± 0.05mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520494078.3U CN204991330U (en) | 2015-07-10 | 2015-07-10 | Take Z to N formula 128 utmost point magnetic rings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520494078.3U CN204991330U (en) | 2015-07-10 | 2015-07-10 | Take Z to N formula 128 utmost point magnetic rings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204991330U true CN204991330U (en) | 2016-01-20 |
Family
ID=55125673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520494078.3U Active CN204991330U (en) | 2015-07-10 | 2015-07-10 | Take Z to N formula 128 utmost point magnetic rings |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204991330U (en) |
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2015
- 2015-07-10 CN CN201520494078.3U patent/CN204991330U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |