CN202110163U - Coaxial rotation signal coupling transmitter - Google Patents
Coaxial rotation signal coupling transmitter Download PDFInfo
- Publication number
- CN202110163U CN202110163U CN2011202149120U CN201120214912U CN202110163U CN 202110163 U CN202110163 U CN 202110163U CN 2011202149120 U CN2011202149120 U CN 2011202149120U CN 201120214912 U CN201120214912 U CN 201120214912U CN 202110163 U CN202110163 U CN 202110163U
- Authority
- CN
- China
- Prior art keywords
- coil
- stator
- turning axle
- rotation shaft
- drive coil
- 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
Images
Landscapes
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
The utility model discloses a coaxial rotation signal coupling transmitter which comprises a rotation shaft, a cylindrical stator, a first excitation coil, a first measurement coil, a second excitation coil, a second measurement coil and at least one point probe. The rotation shaft is allowed to pass through the middle hollow; the first excitation coil and the first measurement coil are arranged on the rotation shaft; the second excitation coil and the second measurement coil are arranged on a stator; at least one point probe is arranged on the rotation shaft; the point probe is connected with the first excitation coil and the first measurement coil; and the second excitation coil and the second measurement coil are connected with a vortex detection instrument. The coaxial rotation signal coupling transmitter has the following advantages that the rotation shaft can be functioned as a rotator without separate arrangement of a rotator, so that a space of the whole equipment is reduced; the aperture of the inner hole of the rotation shaft can be made to any size so as to detect test pieces with pipe diameters of any sizes to meet the test requirements of pipes and rods with large pipe diameters on the market. With the adoption of transformer type coupling, the transmission loss of signals is reduced, the distortion degree is low, the manufacture is easy, the price is cheap, the operation is stable and reliable, the service life is long and the maintenance is simple.
Description
Technical field
The utility model relates to a kind of signal coupling apparatus, specifically relates to a kind of coaxial rotating signal couple transmission device of horizontal coiling.
Background technology
EDDY CURRENT is a kind of lossless detection method that is based upon on the electromagnetic induction principle basis, and it is applicable to conductive material, among we place a conductor in alternating magnetic field; In conductor, just there is induction current to exist; Promptly produce eddy current, because conductor self various factors, can cause faradic variation like the variation of conductivity, magnetic permeability, shape, size and defective etc.; Utilize this phenomenon and declare conductor nature, the status detection method known, be called eddy current detection method.Owing to detect the difference of test specimen shape size, detect the difference at position, so the shape of check probe and also be not quite similar near the mode of test specimen.
When adopting rotary probe that test specimen is detected, is there a particular problems: how the signal on the dot type probe of rotation is delivered to instrument and gets on? Normally adopt signal coupling apparatus to solve this problem in the prior art.Common signal coupling apparatus has carbon brush slip-ring formula signal coupling apparatus, conducting solution formula signal coupling apparatus, radio formula signal coupling apparatus etc.
There is following shortcoming respectively in above-mentioned signal coupling apparatus: the wearing and tearing of carbon brush slip-ring formula signal coupling apparatus are big, and serviceable life is short; Conducting solution formula signal coupling apparatus is bigger to corrosion of metal property, and the on-the-spot inconvenience of using is safeguarded complicated; Radio formula signal coupling apparatus use cost is high, and electronic component is required high, difficult popularizing.
It is transformer high speed signal couple transmission device that our company proposes patent name on April 27th, 2011; Number of patent application is the utility model patent of 201110106557.X; This utility model is because the connected mode of parts and parts; More convenient production tubule footpath product, and in order to satisfy the test request of the big caliber pipe in market, bar, the large aperture signal coupling apparatus of the durable economy supporting with it becomes the necessary of market.
The utility model content
Goal of the invention: in order to solve the deficiency of prior art, the utility model provides the coaxial rotating signal couple transmission device of a kind of easy to manufacture, low price and long service life.
Technical scheme: in order to realize above purpose; The coaxial rotating signal couple transmission device of the utility model; Comprise the cylindric stator that turning axle, intermediate hollow allow this turning axle to pass, first drive coil of being located on the turning axle and first is measured coil, is located at second drive coil and the second measurement coil on the stator and is located at least one probe on the turning axle; Said probe is measured coil with first drive coil and first and is connected, and said second drive coil and second is measured coil and linked to each other with eddy detecting instrument.
In order to make equipment operation more reliable and more stable, preferably, be provided with protruding part in the end of said turning axle, described probe is located on this protruding part.
In order to make between stator and the turning axle couple transmission signal better, guarantee that simultaneously entire equipment installs more firmly firmly, preferably, stator is fixed through connected stator shaft collar; On turning axle, be with annular bearings, this bearing inner ring rotates with turning axle together, and the outer shroud transition fit is fixed on the stator shaft collar.
Further preferably, said stator is connected with the stator shaft collar through screw.
Further preferably, on said stator shaft collar, be provided with the space of placing bearing, after said bearing transition fit places in this space, again stator be fixedly connected with the stator shaft collar with stator surface of contact place.
In order to make signal reach best transmission effect, first drive coil and the first measurement coil are a plurality of, horizontally are located on the turning axle respectively; Second drive coil and second is measured coil and is measured with first drive coil and first respectively that coil is corresponding horizontally to be located on the stator.
In order to make signal keep good transmission effect, the gap between turning axle and the stator is 0.05-20mm.
Beneficial effect: the utility model compared with prior art has the following advantages: turning axle plays the rotor effect simultaneously, need not rotor be set separately, has dwindled the space size of entire equipment; Arbitrary dimension can be made in turning axle endoporus aperture, thereby can detect any big or small caliber test specimen, can satisfy the test request of the big caliber pipe in market, bar; Because adopt the transformer type coupling, the signal slippages is few, degree of distortion is low, and is undistorted when being sent to high-frequency excitation signal on the drive coil, also undistorted when being sent to detected signal on the instrument; Loss is little when transmitting information, can transmit information unattenuatedly, and transfer coefficient approaches 1; The utility model is easy to manufacture, low price, stable and reliable operation, long service life, maintenance are simple.
Description of drawings
Accompanying drawing is the cross-sectional view of the utility model.
Embodiment
Shown in accompanying drawing, drawing reference numeral is expressed as that turning axle 1, stator 2, first drive coil 31, first are measured coil 32, second drive coil 41, second is measured coil 42, probe 5, bearing 6, protruding part 7, screw 8, stator shaft collar 9, eddy detecting instrument 10.Wherein, turning axle 1 is the cylindric of boring, and its inside can be placed detected pieces and detected.Stator 2 is cylindric, wherein between hollow permission turning axle 1 pass from its center.Gap between turning axle 1 and the stator 2 is 12mm (between 0.05-20mm all can).On turning axle 1, be with annular bearings 6, ring and outer shroud in this bearing 6 comprises, when turning axle 1 rotation, interior ring is together rotation with it; Fix through the whole bearing 6 of fixedly making of said outer shroud.Be equipped with stator shaft collar 9 in stator 2 both sides, fixing thereby stator 2 is connected with stator shaft collar 9 through screw 8.On stator shaft collar 9, be provided with the space 11 of placing bearing 6 outer shrouds with stator 2 surface of contact places, thus when the outer shroud of bearing 6 place make whole bearing 6 fixing in this space after, again stator 6 and 9 connections of stator shaft collar are fixed.
On turning axle 1, be provided with horizontal circle first drive coil 31 and a circle first measurement coil 32, on the inner core of stator 2, be provided with a circle and measure coil 42 with the first measurement coil, 32 positions corresponding second with corresponding second drive coil 41 in first drive coil, 31 positions and a circle around this turning axle 1.Wherein, second drive coil 41 is connected with eddy detecting instrument 10 with second magnetic test coil 42.In addition, the circular groove that is provided with through turning axle 1 or stator 2 of said drive coil and magnetic test coil places and is located on the turning axle 1 in the groove or on the stator 2.
Be provided with protruding part 7 in the end of turning axle 1; This protruding part 7 is discoid; Be provided with two probes 5 (can be provided with or 3 and more than) symmetrically in the top of this protruding part 7 and bottom; This probe 5 is measured coil 32 with first drive coil 31 and first and is connected, and in addition, is provided with the excitation winding in the inside of probe 5 and measures winding.
The utility model in use; Seized test specimen is put into the boring detection zone of turning axle 1; Energized makes turning axle 1 rotate around seized test specimen, and applies the alternation high-frequency current through second drive coil 41 on 10 pairs of stators 2 of eddy detecting instrument; At this moment; Promptly induce the high-frequency signal of same frequency on the turning axle 1 with first drive coil 31 of second drive coil, 41 corresponding settings, and it is applied on the excitation winding that probe 5 inside are provided with, probe 5 inner excitation windings produce alternating magnetic field; Make seized test specimen produce eddy current signal; The measurement winding that probe 5 inside are provided with is sensed eddy current on the seized test specimen and change to be produced electric current and it is delivered to first on the turning axle 1 and measure on the coil 32, measures corresponding second the measuring coils 42 and sense first and measure the electric current on the coil 32 and produce sensor current signal and it is delivered in the eddy detecting instrument 10 and handle of being provided with of coil 32 with first on the stator 2 simultaneously, thus the completion signal transduction process.
Arbitrary dimension can be made in the utility model turning axle endoporus aperture, can detect any big or small caliber test specimen, especially can satisfy the test request of the big caliber pipe in market, bar, can detect all products between the 2-300mm caliber.Adopt the contactless coupling of transformer, the signal slippages is few, and degree of distortion is low; Undistorted when being sent to pumping signal on the drive coil; Also undistorted when being sent to detected signal on the instrument, loss is little when the information of transmission in addition, can transmit information unattenuatedly; Transfer coefficient approaches 1, and stable and reliable operation, long service life.
The foregoing description only is the technical conceive and the characteristics of explanation the utility model, its objective is to let to be familiar with the also enforcement according to this of content that these those skilled in the art can understand the utility model, can not limit the protection domain of the utility model with this.All equivalents or modifications of having done according to the utility model spirit all should be encompassed within the protection domain of the utility model.
Claims (7)
1. coaxial rotating signal couple transmission device; It is characterized in that: comprise the cylindric stator (2) that turning axle (1), intermediate hollow allow this turning axle (1) to pass, first drive coil of being located on the turning axle (1) (31) and first is measured coil (32), is located at second drive coil (41) and the second measurement coil (42) on the stator (2) and is located at least one probe (5) on the turning axle (1); Said probe (5) is measured coil (32) with first drive coil (31) and first and is connected, and said second drive coil (41) and second is measured coil (42) and linked to each other with eddy detecting instrument (10).
2. a kind of coaxial rotating signal couple transmission device according to claim 1, it is characterized in that: be provided with protruding part (7) in the end of said turning axle (1), described probe (5) is located on this protruding part (7).
3. a kind of coaxial rotating signal couple transmission device according to claim 1 and 2 is characterized in that: said stator (2) is fixing through connected stator shaft collar (9); On said turning axle (1), be with annular bearings (6), the same turning axle of ring (1) rotates together in this bearing (6), and the outer shroud transition fit is fixed on the said stator shaft collar (9).
4. a kind of coaxial rotating signal couple transmission device according to claim 3 is characterized in that: said stator (2) is connected with said stator shaft collar (9) through screw (8).
5. a kind of coaxial rotating signal couple transmission device according to claim 3 is characterized in that: said stator shaft collar (9) is gone up with said stator (2) surface of contact place and is provided with the space (11) of placing said bearing (6), and said bearing (6) places in this space (11).
6. a kind of coaxial rotating signal couple transmission device according to claim 1 is characterized in that: described first drive coil (31) and the first measurement coil (32) are a plurality of, horizontally are located at respectively on the said turning axle (1); Described second drive coil (41) and second is measured coil (42) and is measured corresponding horizontally being located on the said stator (2) of coil (32) with first drive coil (31) and first respectively.
7. a kind of coaxial rotating signal couple transmission device according to claim 1, it is characterized in that: the gap between said turning axle (1) and the stator (2) is 0.05-20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202149120U CN202110163U (en) | 2011-06-23 | 2011-06-23 | Coaxial rotation signal coupling transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202149120U CN202110163U (en) | 2011-06-23 | 2011-06-23 | Coaxial rotation signal coupling transmitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202110163U true CN202110163U (en) | 2012-01-11 |
Family
ID=45435608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202149120U Expired - Fee Related CN202110163U (en) | 2011-06-23 | 2011-06-23 | Coaxial rotation signal coupling transmitter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202110163U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102338774A (en) * | 2011-06-23 | 2012-02-01 | 苏州龙骏无损检测设备有限公司 | Coaxially-rotating signal coupling transmitter |
-
2011
- 2011-06-23 CN CN2011202149120U patent/CN202110163U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102338774A (en) * | 2011-06-23 | 2012-02-01 | 苏州龙骏无损检测设备有限公司 | Coaxially-rotating signal coupling transmitter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103790927B (en) | With can the transmission shaft of real time on-line monitoring torquer | |
| CN101156074B (en) | Bearing with cage mounted sensors | |
| US20090301223A1 (en) | Direct shaft power measurements for rotating machinery | |
| CN205403691U (en) | Axial displacement sensor | |
| CN103499022B (en) | A kind of sensor distinguishing pipeline surfaces externally and internally corrosion default | |
| CN103868986A (en) | Eddy detection probe for detecting internal surface defects in metal pipelines and detection method thereof | |
| CN101345455A (en) | Electric motor with rotor temperature measurement terminal and its rotor temperature on-line measurement apparatus | |
| US9267921B2 (en) | Axial and circumferential flaw sensing eddy current probe | |
| CN110690795A (en) | Permanent magnet motor stator and rotor temperature and vibration measuring device and permanent magnet motor | |
| CN202110163U (en) | Coaxial rotation signal coupling transmitter | |
| CN102253113A (en) | Transformer type high-speed signal coupling transmitter | |
| CN104849662A (en) | Electromagnetic induction type generator air gap detection method and electromagnetic induction type generator air gap detection device | |
| CN101813665A (en) | Electric eddy current probe adopting pair tube connection | |
| CN102338774A (en) | Coaxially-rotating signal coupling transmitter | |
| CN102645157B (en) | Eddy current detection probe | |
| CN103001399A (en) | Alternating current motor capable of achieving self-testing of rotor temperatures | |
| CN203730531U (en) | Transmission shaft provided with device capable of performing on-line monitoring on torque in real time | |
| CN202120745U (en) | Transformer high-speed signal coupling and transmitting device | |
| CN204595174U (en) | A kind of induction power generator air gap pick-up unit | |
| CN103439405A (en) | Multifunctional electromagnetic detection sensor synchronized by iron core and ferrite core and detection method thereof | |
| JP2013047668A (en) | Sensor assembly and microwave radiator used in sensor assembly | |
| CN103531011B (en) | The pulse signal non-contact transmission device of miniature rotation sensors/transducers | |
| CN206369591U (en) | The temperature measuring equipment of strong magnetic-type revolving part | |
| CN201724927U (en) | Eddy current probe adopting geminate transistor connection | |
| CN203365027U (en) | Magnetic Barkhausen noise sensor |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120111 Termination date: 20160623 |