CN201059955Y - Spiral electricity grid ruler - Google Patents
Spiral electricity grid ruler Download PDFInfo
- Publication number
- CN201059955Y CN201059955Y CNU2007200408853U CN200720040885U CN201059955Y CN 201059955 Y CN201059955 Y CN 201059955Y CN U2007200408853 U CNU2007200408853 U CN U2007200408853U CN 200720040885 U CN200720040885 U CN 200720040885U CN 201059955 Y CN201059955 Y CN 201059955Y
- Authority
- CN
- China
- Prior art keywords
- axle
- electric grid
- winding
- axle sleeve
- sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000005611 electricity Effects 0.000 title 1
- 238000004804 winding Methods 0.000 claims abstract description 58
- 238000000034 method Methods 0.000 claims abstract description 8
- 238000009413 insulation Methods 0.000 claims description 10
- 239000011159 matrix material Substances 0.000 claims description 10
- 238000006073 displacement reaction Methods 0.000 abstract description 7
- 230000006698 induction Effects 0.000 abstract description 2
- 238000005259 measurement Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 4
- 230000005674 electromagnetic induction Effects 0.000 description 3
- 230000005284 excitation Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 229920006351 engineering plastic Polymers 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000003872 anastomosis Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000011796 hollow space material Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000004304 visual acuity Effects 0.000 description 1
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- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The utility model relates to a straight line displacement sensor of length and location measurement, in particular to a spiral electric grid ruler. The utility model is composed of a cylindrical electric grid axle and an electric grid axle sleeve, and the electric grid axle sleeve is arranged on the electric grid axle; the electric grid axle is of an axis basal body, an axle winding sealed in an insulating layer and an axis matching layer from inside to outside in sequence; the electric grid axle sleeve is of an axle sleeve basal body, an axle sleeve winding sealed in the insulating layer and an axis sleeve matching layer from outside to inside in sequence; and the axle winding and the axis sleeve winding are of a double spiral line shaped winding method, the tail parts of which are connected in parallel. The utility model has the characteristics of a ball grid ruler and the electric grid ruler, the spiral electric grid ruler is created, the utility model is realized by utilizing the principle that the axle and the sleeve are arranged on a cylindrical face, and the electromagnet induction signal between the spiral line windings is changed along with the displacement change.
Description
Technical field
The utility model relates to the linear displacement transducer that a kind of extension position is measured, and is one of key foundation part of electromechanical integrated product, can be widely used in the straight-line displacement digital display and the numerical control of various lathes, instrument, measuring machine etc., especially a kind of spiral electric railing ruler.
Background technology
Grating, inductosyn, magnetic grid and four kinds of measuring systems of appearance grid are novel position measuring systems that states such as English after the fifties, U.S., Japan grow up.In order to adapt to the rugged surroundings in using, reach simultaneously the insensitive requirement of the variation of operating ambient temperature, the eighties, the ball bar measuring system was invented by Britain.
Grating, inductosyn, magnetic grid and appearance grid all are the conversions of position and electric signal, are respectively the principles of utilizing photoelectricity, inductance, magnetoelectricity, capacitive sensing.
For inductosyn (claiming electric grid again), be utilize that it is fixed, electromagnetic induction signal is realized with the principle of change in displacement between the winding of slide rule plane.Ball bar (claiming the ball synchronizer again) is to utilize the steel ball combination, and the principle that magnetic conductive media quantitative change generation electromagnetic induction signal is changed with displacement realizes.
The plane winding of common electric grid is formed (as shown in Figure 3) by work guide card and end face guide card two parts, the induced signal of work guide card is a demand, the end face guide card plays anastomosis, its induced signal is harmful to, influence in order to reduce and to eliminate it, the slide rule winding adopts the mode (shown in Figure 4) of positive and negative solderless wrapped connection, pole span 0.67 between two guide cards, need artificial weldering solderless wrapped connection, difficulty is very big.
Grating, electric grid, appearance grid etc. all are to make guide card or grid line in the plane; in order to ensure dynamic and static two-part relatively moving; be square wide body and add rubber strip and block protection, fall its guide card or grid line surface and influence measuring reliability but still have dust or greasy dirt.
Summary of the invention
The purpose of this utility model is to provide a kind of energy digital display, numerical control, bearing accuracy height, can use the spiral electric railing ruler of production simple and compact for structure, hermetically sealed, easy to use, easy, cost savings in rugged surroundings.
The technical scheme that its technical matters that solves the utility model adopts is: a kind of spiral electric railing ruler, to form by columniform electric grid axle and electric grid axle sleeve, and electric grid axle sleeve is sleeved on the electric grid axle; Described electric grid axle is followed successively by a matrix from the inside to the outside, is sealed in axle winding and axle cooperation layer in the insulation course; Described electric grid axle sleeve is followed successively by the axle sleeve matrix from outside to inside, is sealed in axle sleeve winding and axle sleeve cooperation layer in the insulation course; Described axle winding and axle sleeve winding are the winding mode of afterbody and the double helix line style that connects, electric current flow into afterbody from A helical pitch guide card head forward, get back to head with B helical pitch guide card afterbody reverse direction flow again and form the loop, the end face guide card that does not have electric railing ruler, as shown in Figure 1, positive and negative electric current separately forms electromagnetic field.The guide card width is 0.66mm, eliminates the third harmonic composition of induced potential.
Whole process at electric grid axle is provided with an axle winding, is provided with two axle sleeve windings (sin winding and cos winding), three groups of winding rotation direction unanimities, and helical pitch T=2mm in the whole process of electric grid axle sleeve; Two axle sleeve windings same axially on the each point position D=nT+1/4T (n=0,1,2,3 of direction of current unanimity ...).
Principle of work has several, if give electric grid axle sleeve just, the cosine winding passes to respectively with phase and amplitude excitation voltage U
sAnd U
c:
U
s＝U
mSinθ
eSinwt
U
c=U
mCos θ
eThe Sinwt magnet excitation frequency is generally got the then electric grid axle output of 10KHz induced electromotive force signal e:
e＝K
mU
mSin(2πx/T-θ
e)Coswt
In the formula: U
m---the excitation voltage maximum amplitude;
K
m---the voltage transfer coefficient;
2 π x/T---mechanical shift angle;
X---axle and the relative position that is enclosed within the winding cycle;
T---winding cycle 2mm;
θ
e---electrical angle.
The output induction electromotive force changes with mechanical angle of slip, can realize amplitude discrimination type digital display.
Influence the measurement reliability in order to prevent the dust greasy dirt from entering into the faying face of electric grid axle and electric grid axle sleeve, further: the opening part at electric grid axle sleeve is provided with O-ring seal, has guaranteed to realize hermetically sealed.
In order to guarantee electric grid axle sleeve good slip fluency on electric grid axle, make both surface of contact have good wearing quality simultaneously, more further: it is stainless steel that described axle cooperates layer material; It is engineering plastics that described axle sleeve cooperates layer material.
The characteristics of the utility model collection ball bar ruler and electric railing ruler, the original creation spiral electric railing ruler, it is to utilize axle and be enclosed within on the face of cylinder, electromagnetic induction signal is realized with the principle of change in displacement between the helix winding.By comprehensive characteristics more of the present utility model be:
1. the common advantage that has existing position measuring system: easily realize the conversion of position and electric signal, realize that numeral shows, calculates and numerical control; High precision, high resolving power, wide range, energy-conservation and environmental protection.
2. the characteristics that have ball bar; Volume is little, structure is hermetically sealed, good reliability, can use in rugged environment, waterproof, grease proofing, anti-iron filings, vibration resistance, operating ambient temperature change the precision influence little; Adjustment, long service life easily are installed.
3. have the high characteristics of electric grid subdivision accuracy, it is better than ball bar.
4. easily produce in batches and the penetration and promotion application.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the partial enlarged drawing of Fig. 1.
Fig. 3 is the structural representation of plane winding electric railing ruler.
Fig. 4 is that the slide rule winding adopts positive and negative wrapping system synoptic diagram on the winding electric railing ruler of plane.
Among the figure: 1. electric grid axle 1-1. axle matrix 1-2. axle winding 1-3. axle cooperates layer 2. electric grid axle sleeve 2-1. axle sleeve matrix 2-2. axle sleeve winding 2-3. axle sleeve to cooperate layer 3. O-ring seal 4. insulation sleeves 5. insulation courses 6. mounting grooves 7. inserts 8. work guide cards 9. end face guide cards
Embodiment
A kind of spiral electric railing ruler as shown in Figure 1 and Figure 2 is made up of columniform electric grid axle 1 and electric grid axle sleeve 2, and electric grid axle sleeve 2 is sleeved on the electric grid axle 1, is provided with O-ring seal 3 at the opening part of electric grid axle sleeve 2.Described electric grid axle 1 is followed successively by a matrix 1-1 from the inside to the outside, is sealed in an axle winding 1-2 and an axle cooperation layer 1-3 in the insulation course; Described electric grid axle sleeve 2 is followed successively by axle sleeve matrix 2-1 from outside to inside, is sealed in an axle sleeve winding 2-2 and an axle sleeve cooperation layer 2-3 in the insulation course.Wherein, it is stainless steel that axle cooperates layer 1-3 material, and it is engineering plastics that axle sleeve cooperates layer 2-3 material.Described axle winding 1-2 and axle sleeve winding 2-2 are the winding mode of afterbody and the double helix line style that connects.Whole process at electric grid axle 1 is provided with an axle winding 1-2, is provided with two axle sleeve winding 2-2, three groups of winding rotation direction unanimities, and helical pitch T=2mm in the whole process of electric grid axle sleeve; Two axle sleeve winding 2-2 are at the make progress each point position D=nT+1/4T (n=0,1,2,3 of direction of current unanimity of same axis ...).
The hermetically-sealed construction of described axle winding 1-2 and axle sleeve winding 2-2 can adopt at the outside insulation sleeve 4 that coats of winding, or winding is clipped in two-layer covering between the exhausted layer 5, or the combination of two kinds of structures, in a word, guarantees that mutually insulated gets final product between winding.
In addition, in order to guarantee a winding 1-2 and the axle sleeve winding 2-2 installation accuracy in electric grid axle 1 and electric grid axle sleeve 2, can or cover at axle matrix 1-1 to process in advance on the exhausted layer 5 and be used for setting-in axle winding 1-2 or the outside mounting groove 6 that coats the axle winding 1-2 of insulation sleeve 4, axle winding 1-2 is inlaid in the mounting groove 6, in like manner, the axle sleeve winding 2-2 on the electric grid axle sleeve 2 also installs by similar approach.
In addition, axle matrix 1-1 can be solid, also can be hollow structure, for guaranteeing certain structure intensity, at hollow space inserts 7 can be set.
Claims (3)
1. spiral electric railing ruler, it is characterized in that: be made up of columniform electric grid axle (1) and electric grid axle sleeve (2), electric grid axle sleeve (2) is sleeved on the electric grid axle (1); Described electric grid axle (1) is followed successively by a matrix (1-1) from the inside to the outside, is sealed in axle winding (1-2) and axle cooperation layer (1-3) in the insulation course; Described electric grid axle sleeve (2) is followed successively by axle sleeve matrix (2-1) from outside to inside, is sealed in axle sleeve winding (2-2) and axle sleeve cooperation layer (2-3) in the insulation course; Described axle winding (1-2) and axle sleeve winding (2-2) are the winding mode of afterbody and the twin-feed spiral line style that connects.
2. a kind of spiral electric railing ruler according to claim 1 is characterized in that: the whole process at electric grid axle (1) is provided with an axle winding (1-2), is provided with two axle sleeve windings (2-2), three groups of winding rotation direction unanimities, and helical pitch T=2mm in the whole process of electric grid axle sleeve; Two axle sleeve windings (2-2) are at the make progress each point position D=nT+1/4T (n=0,1,2,3 of direction of current unanimity of same axis ...).
3. a kind of spiral electric railing ruler according to claim 1 is characterized in that: the opening part at electric grid axle sleeve (2) is provided with O-ring seal (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200408853U CN201059955Y (en) | 2007-07-18 | 2007-07-18 | Spiral electricity grid ruler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200408853U CN201059955Y (en) | 2007-07-18 | 2007-07-18 | Spiral electricity grid ruler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201059955Y true CN201059955Y (en) | 2008-05-14 |
Family
ID=39408433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200408853U Expired - Fee Related CN201059955Y (en) | 2007-07-18 | 2007-07-18 | Spiral electricity grid ruler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201059955Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101551243B (en) * | 2009-04-27 | 2010-12-29 | 洛阳乾禾仪器有限公司 | Ball bar ruler |
| CN105698662A (en) * | 2014-11-28 | 2016-06-22 | 常州维能达精机有限公司 | Manufacturing equipment of coiled electric grid scale and manufacturing process thereof |
-
2007
- 2007-07-18 CN CNU2007200408853U patent/CN201059955Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101551243B (en) * | 2009-04-27 | 2010-12-29 | 洛阳乾禾仪器有限公司 | Ball bar ruler |
| CN105698662A (en) * | 2014-11-28 | 2016-06-22 | 常州维能达精机有限公司 | Manufacturing equipment of coiled electric grid scale and manufacturing process thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080514 Termination date: 20150718 |
|
| EXPY | Termination of patent right or utility model |