CN205620270U - Online fluid metal particles detector - Google Patents
Online fluid metal particles detector Download PDFInfo
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- CN205620270U CN205620270U CN201620022470.2U CN201620022470U CN205620270U CN 205620270 U CN205620270 U CN 205620270U CN 201620022470 U CN201620022470 U CN 201620022470U CN 205620270 U CN205620270 U CN 205620270U
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- metallic particles
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Abstract
The utility model discloses an online fluid metal particles detector, it includes detecting coil and control circuit board, wherein, the detecting coil comprises four group's coils and is detected the bridge, to micron order in the fluid not unidimensional ferromagnetic / non - ferromagnetic granule real -time detection to through digital calibration circuit to keeping balance detecting and adjusting by four group's electric bridges of forming of coils, thereby improved the measuring precision, in addition, still be equipped with shield ring, overcoat and sheath respectively in the outside of detecting coil, the shield ring can shield external disturbance, improves and detects the precision, and overcoat and sheath can form the protection to the detecting coil. In addition, the detected signal passes through control circuit board's MCU controller to be handled, has detectivity height, fast, the detection advantage with low costs of response speed. The utility model discloses can carry out real -time detection, analysis and warning to mechanical equipment state of wearing and tearing and failure diagnosis, the precision is high, and is with low costs, has better practical application and worth.
Description
Technical field
This utility model relates to mechanical fault detection technical field, particularly to a kind of online fluid metallic particles
Detector.
Background technology
In rotating machinery, rub, wear and tear the master being to affect motive power machine equipment functional reliability and life-span
Want reason.Due to phase mutual friction between friction pair, lubricating oil produces metallic particles.At present, to lubrication
The detection mode of fluid metallic particles has two kinds, i.e. off-line type and online.But off-line type detection existence is following not
In place of foot:
1. the detection cycle is long, needs human at periodic intervals to draw oil sample；
2. testing cost is high, and detection data are delayed, it is impossible to meet ageing requirement.
Online fluid metallic particles detector can detect in real time, can make to equipment wearing and fault
Gesture is predicted, and utilizes network technology to realize remotely monitoring and checking, overcomes traditional laboratory off-line analysis side
Method cost is high, operation is complicated, measure the defect that sample point is few.
But, in existing online fluid metal detection technology, however it remains detection coil arrangement is unreasonable,
Lack the necessary protection to detection coil and adjustment, cause the problem that accuracy of detection is the highest.
Utility model content
To this end, the utility model proposes a kind of online fluid metallic particles detector, can eliminate fully due to
One or more problems that the restriction of prior art and defect cause.
This utility model additional advantage, purpose and characteristic, a part will be elucidated in the following description,
And another part for those of ordinary skill in the art by the investigation of description below be will be apparent from or
Acquire from enforcement of the present utility model.By in the specification and claims and accompanying drawing of word especially
The structure pointed out can realize and obtain this utility model purpose and advantage.
This utility model provides a kind of online fluid metallic particles detector, including detection coil (1) and
Control circuit plate (11), wherein:
Described control circuit plate (11) include excited oscillation circuit (2), digital calibration circuit (3), ferromagnetic/
Non-ferromagnetic testing circuit (10), signal processing circuit (9), A/D converter (8) and MCU controller (7),
Wherein, MCU controller (7), digital calibration circuit (3), excited oscillation circuit (2) and detection coil (1)
It is sequentially connected, detection coil (1), ferromagnetic/non-ferromagnetic testing circuit (10), signal processing circuit (9), A/D
Transducer (8) and MCU controller (7) are sequentially connected；
Described detection coil (1) includes first coil (17), the second coil (18), tertiary coil (20)
With the 4th coil (21), described first coil (17), the second coil (18), tertiary coil (20) and
Four coils (21) are that symmetrical centre is connected according to a determining deviation and uniform winding is in magnetic-lag with binding post (19)
On the cylinder type hollow oil circuit (15) of material, forming electric bridge, wherein, described binding post is arranged on described hollow
The intermediate point of oil circuit (15)；
On described first coil (17), the second coil (18), tertiary coil (20) and the 4th coil (21)
Being respectively equipped with the shading ring (13) isometric with each group of coil, the periphery of described shading ring (13) is provided with institute
Stating two overcoats (14) that binding post (19) is symmetrical centre, the periphery of described overcoat (14) is provided with institute
State two sheaths (12) that binding post (19) is symmetrical centre.
Preferably, the lead-in wire of described detection coil (1) is by binding post (19) and described control circuit plate (11)
Connect.
Preferably, the 1/2 of a length of oil circuit length of each described overcoat (14).
Preferably, the 1/2 of a length of oil circuit length of each described sheath (12).
Preferably, the ring cross-section that described overcoat (14), shading ring (13) are formed with oil circuit (15) outer wall
Fastening is sealed by implant (16).
Preferably, described control circuit plate (11) also includes telecommunication circuit (6), status display circuit (4)
With power circuit (5).
Preferably, described status display circuit (4) is state display lamp.
This utility model, based on electromagnetic induction principle, is formed detection bridge by four groups of coils, to micron order in fluid
Ferromagnetic/non-ferromagnetic granule of different size detects in real time, and by digital calibration circuit to being made up of four groups of coils
Electric bridge is balanced detection and adjusts, thus improves accuracy of detection；It addition, this utility model is also at detection line
The outside of circle is respectively equipped with shading ring, overcoat and sheath, and shading ring can shield external interference, improves detection essence
Degree, overcoat and sheath can form protection to detection coil.Thus, not only further increase accuracy of detection,
The most effectively protect detection coil, it is ensured that being smoothed out of detection work.It addition, detection signal is by controlling
The MCU controller of circuit board processes, and makes online fluid metallic particles detector have detection sensitivity height, ring
Answer the advantage that speed is fast, testing cost is low.Wear Condition of Machinery and fault diagnosis can be entered by this utility model
Row detects in real time, analyzes and reports to the police, and precision is high, and low cost has preferable actual application value.
Accompanying drawing explanation
Fig. 1 is the structural representation according to fluid metallic particles detector this utility model embodiment, online
Figure.
Fig. 2 is according to this utility model embodiment, the structural representation of detection coil.
Detailed description of the invention
With reference to the accompanying drawings this utility model is described more fully, example of the present utility model is wherein described
Property embodiment.
As it is shown in figure 1, the online fluid metallic particles detector that the utility model proposes includes detecting coil
(1) and control circuit plate (11), described control circuit plate (11) includes excited oscillation circuit (2), numeral
Calibration circuit (3), ferromagnetic/non-ferromagnetic testing circuit (10), signal processing circuit (9), A/D converter (8)
With MCU controller (7), wherein, MCU controller (7), digital calibration circuit (3), excited oscillation circuit
(2) with detection coil (1) be sequentially connected, detection coil (1), ferromagnetic/non-ferromagnetic testing circuit (10),
Signal processing circuit (9), A/D converter (8) and MCU controller (7) are sequentially connected.
This utility model is provided with digital calibration circuit (3) in control circuit plate (11), by described numeral
Detection coil 1 is adjusted by calibration circuit (3), improves accuracy of detection, below in conjunction with Fig. 2 pair
It is further described.
As in figure 2 it is shown, described detection coil (1) include first coil (17), the second coil (18),
Three-winding (20) and the 4th coil (21), described first coil (17), the second coil (18), the 3rd line
Circle (20) and the 4th coil (21) are that symmetrical centre is the most uniform according to a determining deviation series connection with binding post (19)
Being wrapped on the cylinder type hollow oil circuit (15) of magnetic-lag material, form electric bridge, wherein, described binding post sets
Put at described hollow oil circuit (15) intermediate point；Described first coil (17), the second coil (18), the 3rd line
It is respectively equipped with the shading ring (13) isometric with each group of coil on circle (20) and the 4th coil (21), described
The periphery of shading ring (13) is provided with the described binding post (19) two overcoats (14) as symmetrical centre, root
According to preferred embodiment of the present utility model, the 1/2 of a length of oil circuit length of each described overcoat (14)；Institute
State the periphery of overcoat (14) to be provided with the described binding post (19) two sheaths (12) as symmetrical centre, root
According to preferred embodiment of the present utility model, the 1/2 of a length of oil circuit length of each described sheath (12).Inspection
The lead-in wire of test coil (1) is connected with control circuit plate (11) by binding post (19).
According to preferred embodiment of the present utility model, described overcoat (14), shading ring (13) and oil circuit (15)
The ring cross-section that outer wall is formed is sealed fastening by implant (16).
Below in conjunction with Fig. 1 and Fig. 2, the work to the online fluid metallic particles detector that the utility model proposes
It is further elaborated as principle.
When carrying out detecting work, excited oscillation circuit (2) adds solid to the electric bridge that detection coil (1) is constituted
Determining the simple alternating current excitation of frequency, fixed amplitude and stationary phase, the output of electric bridge can produce one and believe with excitation
Number with frequency, size, direction are with the carrier signal of mechanical periodicity, when ferromagnetic/non-ferromagnetic granule in fluid passes through
During detection coil (1), cause the magnetic flux of detection coil (1) to change, cause detecting coil (1)
Inductance value changes, and the variable quantity of inductance is relevant with the diameter of ferromagnetic particle relative permeability, granule.Work as ferrum
Increase the magnetic flux of detection coil (1) when magnetic granule is by detection coil (1), make detection coil (1)
Inductance increases；The magnetic flux of detection coil (1), inspection is decreased when non-ferromagnetic granule is by detection coil (1)
The inductance of test coil (1) reduces.Therefore the variable quantity detecting coil (1) inductance reflects in fluid containing metal
The material of granule, size and quantity.Ferromagnetic particle is judged thus according to detection coil (1) output signal amplitude
Size, judge the character of granule according to the phase place of signal.
The detection signal of detection coil (1) by binding post (19) Access Control circuit board (11), ferromagnetic/
Non-ferromagnetic testing circuit (10) carries out ferromagnetic/non-ferromagnetic signal to detection signal and differentiates, signal processing circuit (9)
The signal exporting ferromagnetic/non-ferromagnetic testing circuit (10) filters, amplification etc. processes, after treatment
Signal enters into A/D converter (8), and the signal of input is converted to digital signal by A/D converter (8),
Be then output to MCU controller (7), described MCU controller (7) to digital signal acquiring, process and control
System, by digital calibration circuit (3) to first coil (17), the second coil (18), tertiary coil (20)
The electric bridge formed with the 4th coil (21) is balanced detection and adjusts.
According to preferred embodiment of the present utility model, as it is shown in figure 1, the control circuit plate that the utility model proposes
(11) also include telecommunication circuit (6), status display circuit (4) and power circuit (5), wherein, pass through
Telecommunication circuit (6) output real-time detector data；According to preferred embodiment of the present utility model, described state shows
Showing that circuit (4) is state display lamp, it shows the duty of online fluid metallic particles detector；Institute
State all parts that power circuit (5) is control circuit plate (11) to be powered.
This utility model is by arranging four groups of detection coils on cylinder type hollow oil circuit (15), and makes four groups of inspections
Test coil composition electric bridge, is balanced examining to the electric bridge being made up of four groups of coils by digital calibration circuit (3)
Survey and adjust, thus improve accuracy of detection；It addition, as it has been described above, this utility model is also at detection coil
Outside is respectively equipped with shading ring, overcoat and sheath, and shading ring can shield external interference, improves accuracy of detection,
Overcoat and sheath can form protection to detection coil.Thus, by above-mentioned setting of the present utility model, not only
Further increase accuracy of detection, the most effectively protect detection coil, it is ensured that being smoothed out of detection work.
Above content is only preferred embodiment of the present utility model, for those of ordinary skill in the art, foundation
Thought of the present utility model, the most all will change, in this specification
Hold and should not be construed as restriction of the present utility model.
Claims (7)
1. an online fluid metallic particles detector, including detection coil (1) and control circuit plate (11),
It is characterized in that:
Described control circuit plate (11) include excited oscillation circuit (2), digital calibration circuit (3), ferromagnetic/
Non-ferromagnetic testing circuit (10), signal processing circuit (9), A/D converter (8) and MCU controller (7),
Wherein, MCU controller (7), digital calibration circuit (3), excited oscillation circuit (2) and detection coil (1)
It is sequentially connected, detection coil (1), ferromagnetic/non-ferromagnetic testing circuit (10), signal processing circuit (9), A/D
Transducer (8) and MCU controller (7) are sequentially connected；
Described detection coil (1) includes first coil (17), the second coil (18), tertiary coil (20)
With the 4th coil (21), described first coil (17), the second coil (18), tertiary coil (20) and
Four coils (21) are that symmetrical centre is connected according to a determining deviation and uniform winding is in magnetic-lag with binding post (19)
On the cylinder type hollow oil circuit (15) of material, forming electric bridge, wherein, described binding post is arranged on described hollow
The intermediate point of oil circuit (15)；
On described first coil (17), the second coil (18), tertiary coil (20) and the 4th coil (21)
Being respectively equipped with the shading ring (13) isometric with each group of coil, the periphery of described shading ring (13) is provided with institute
Stating two overcoats (14) that binding post (19) is symmetrical centre, the periphery of described overcoat (14) is provided with institute
State two sheaths (12) that binding post (19) is symmetrical centre.
Online fluid metallic particles detector the most according to claim 1, it is characterised in that described
The lead-in wire of detection coil (1) is connected with described control circuit plate (11) by binding post (19).
Online fluid metallic particles detector the most according to claim 1, it is characterised in that each
The 1/2 of a length of oil circuit length of described overcoat (14).
Online fluid metallic particles detector the most according to claim 1, it is characterised in that each
The 1/2 of a length of oil circuit length of described sheath (12).
Online fluid metallic particles detector the most according to claim 1, it is characterised in that described
The ring cross-section that overcoat (14), shading ring (13) and oil circuit (15) outer wall are formed is close by implant (16)
It is tamping solid.
Online fluid metallic particles detector the most according to claim 1, it is characterised in that described
Control circuit plate (11) also includes telecommunication circuit (6), status display circuit (4) and power circuit (5).
Online fluid metallic particles detector the most according to claim 6, it is characterised in that described
Status display circuit (4) is state display lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620022470.2U CN205620270U (en) | 2016-01-11 | 2016-01-11 | Online fluid metal particles detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620022470.2U CN205620270U (en) | 2016-01-11 | 2016-01-11 | Online fluid metal particles detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205620270U true CN205620270U (en) | 2016-10-05 |
Family
ID=57033271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620022470.2U Expired - Fee Related CN205620270U (en) | 2016-01-11 | 2016-01-11 | Online fluid metal particles detector |
Country Status (1)
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|---|---|
| CN (1) | CN205620270U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106568691A (en) * | 2016-10-20 | 2017-04-19 | 江苏大学镇江流体工程装备技术研究院 | Oil liquid abrasive particle online monitoring apparatus |
| CN107576719A (en) * | 2017-08-25 | 2018-01-12 | 爱德森（厦门）电子有限公司 | A kind of method for improving the online fluid metal worn particle electromagnetic monitoring degree of accuracy |
| CN107589171A (en) * | 2017-11-08 | 2018-01-16 | 湖南挚新科技发展有限公司 | Contained metal detection system in fluid pipeline |
| CN109738338A (en) * | 2019-02-12 | 2019-05-10 | 重庆邮电大学 | A kind of online metallic particles monitoring device of heavy caliber lubricant passage way and its detection method |
| CN110470822A (en) * | 2019-08-21 | 2019-11-19 | 岭澳核电有限公司 | A kind of nuclear power station equipment wearing monitoring system and method |
| CN112557260A (en) * | 2020-11-24 | 2021-03-26 | 北京信息科技大学 | Metal wear particle detection sensor and detection method based on high-permeability iron core |
| CN113125314A (en) * | 2021-04-08 | 2021-07-16 | 北京信息科技大学 | High-sensitivity metal wear particle detection sensor wrapped with high-permeability material |
| CN113252516A (en) * | 2021-06-02 | 2021-08-13 | 爱德森（厦门）电子有限公司 | Externally-penetrated oil liquid electromagnetic detection sensor and manufacturing method thereof |
-
2016
- 2016-01-11 CN CN201620022470.2U patent/CN205620270U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106568691A (en) * | 2016-10-20 | 2017-04-19 | 江苏大学镇江流体工程装备技术研究院 | Oil liquid abrasive particle online monitoring apparatus |
| CN106568691B (en) * | 2016-10-20 | 2019-03-05 | 江苏大学镇江流体工程装备技术研究院 | A kind of oil liquid abrasive grain on-Line Monitor Device |
| CN107576719A (en) * | 2017-08-25 | 2018-01-12 | 爱德森（厦门）电子有限公司 | A kind of method for improving the online fluid metal worn particle electromagnetic monitoring degree of accuracy |
| CN107589171A (en) * | 2017-11-08 | 2018-01-16 | 湖南挚新科技发展有限公司 | Contained metal detection system in fluid pipeline |
| CN109738338A (en) * | 2019-02-12 | 2019-05-10 | 重庆邮电大学 | A kind of online metallic particles monitoring device of heavy caliber lubricant passage way and its detection method |
| CN110470822A (en) * | 2019-08-21 | 2019-11-19 | 岭澳核电有限公司 | A kind of nuclear power station equipment wearing monitoring system and method |
| CN112557260A (en) * | 2020-11-24 | 2021-03-26 | 北京信息科技大学 | Metal wear particle detection sensor and detection method based on high-permeability iron core |
| CN113125314A (en) * | 2021-04-08 | 2021-07-16 | 北京信息科技大学 | High-sensitivity metal wear particle detection sensor wrapped with high-permeability material |
| CN113252516A (en) * | 2021-06-02 | 2021-08-13 | 爱德森（厦门）电子有限公司 | Externally-penetrated oil liquid electromagnetic detection sensor and manufacturing method thereof |
| CN113252516B (en) * | 2021-06-02 | 2024-06-18 | 爱德森（厦门）电子有限公司 | Externally-penetrating oil electromagnetic detection sensor and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| DD01 | Delivery of document by public notice |
Addressee: Yang Wenhong Document name: Notification of Acceptance of Patent Application |
|
| 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: 20161005 Termination date: 20200111 |