CN208188144U - A kind of magnetoelectric tachometric transducer of anti-interference type - Google Patents
A kind of magnetoelectric tachometric transducer of anti-interference type Download PDFInfo
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- CN208188144U CN208188144U CN201820690723.2U CN201820690723U CN208188144U CN 208188144 U CN208188144 U CN 208188144U CN 201820690723 U CN201820690723 U CN 201820690723U CN 208188144 U CN208188144 U CN 208188144U
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- main body
- magnetoelectric tachometric
- electromagnetic induction
- tachometric transducer
- shell
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- 230000005674 electromagnetic induction Effects 0.000 claims abstract description 29
- 238000001514 detection method Methods 0.000 claims abstract description 22
- 230000006698 induction Effects 0.000 claims description 26
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 21
- 230000001939 inductive effect Effects 0.000 claims description 16
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 239000007769 metal material Substances 0.000 abstract description 8
- 239000000523 sample Substances 0.000 description 6
- 230000004907 flux Effects 0.000 description 5
- 230000035945 sensitivity Effects 0.000 description 4
- 238000005259 measurement Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
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- 238000000576 coating method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
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- 239000007787 solid Substances 0.000 description 1
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- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
The utility model discloses a kind of magnetoelectric tachometric transducers of anti-interference type comprising: main body, the body interior are equipped with a cavity；Shell is shielded, the shielding shell is coated on the main body, and the shielding shell is equipped with a detection opening, and the detection opening is connected with the cavity；It is contained in the electromagnetic induction device of the cavity, the core portion of the electromagnetic induction device stretches out the detection opening.Main body is tubular, shielding shell is metal material, the core portion of electromagnetic induction device stretches out detection opening, it not only solves and uses the sensor sensing distance of non-metallic material shell remote, but the problem that clutter is big, and the electromagnetic induction device for solving sensor all surrounds inside the shell, sensor clutter is small, but the problem that distance of reaction is close, the distance of reaction of the magnetoelectric tachometric transducer of one of the embodiments of the present invention anti-interference type is remote, and clutter is small.
Description
Technical field
The utility model relates to magnetoelectric tachometric transducer fields, and in particular to a kind of magnetoelectric tachometric biography of anti-interference type
Sensor.
Background technique
Magnetoelectric tachometric transducer is a kind of instrument that tachometric survey is realized using magnetoelectric induction as basic principle, belongs to non-connect
Touch tachometer.Magnetoelectric tachometric transducer is made of components such as magnetoresistive element, permanent magnet and sensitive coils, is surveyed
When measuring object moment, the induction coil of magnetoelectric tachometric transducer can generate the magnetic line of force, and measurement object rotates cutting magnetic line, magnetic
It routes in magnetic resistance change rate, generates electromotive force in sensitive coil.Magnetoelectric tachometric transducer can measure various permeability magnetic materials
Such as: gear, impeller, the apertured object revolving speed in (or slot) disk (or axis) surface with holes, it can be in smog, oil gas and steam
Etc. work in adverse circumstances, be widely used in large rotating machinery (such as steamer of electric power, metallurgy, petrochemical industry, ship and paper industry
Machine, compressor, motor, blower, pump etc.) revolving speed and overspeed measurement, while in work pieces process monitor speed, steel pipe coating
Also it is used widely in the fields such as monitor speed and gear rotational speed measurement.
But current most of sensors are all to surround induction end using nonmetallic or metal shell, using metal outside
The sensor clutter of shell is small, but distance of reaction is close；It is remote using the sensor sensing distance of non-metal shell, but clutter is big.
Utility model content
In view of the deficiencies in the prior art, the purpose of this utility model is to provide a kind of magneto-electrics of anti-interference type
Speed probe, the distance of reaction to realize sensor is remote, and clutter is small.
To achieve the above objectives, the technical scheme adopted by the utility model is that:
A kind of magnetoelectric tachometric transducer of anti-interference type comprising:
Main body, the body interior are equipped with a cavity；
Shell is shielded, the shielding shell is coated on the main body, and the shielding shell is equipped with a detection opening, and institute
Detection opening is stated to be connected with the cavity；
It is contained in the electromagnetic induction device of the cavity, the core portion of the electromagnetic induction device stretches out the detection and opens
Mouthful.
Main body is tubular, and shielding shell is metal material, and the core portion of electromagnetic induction device stretches out detection opening, no
It addresses only and uses the sensor sensing distance of non-metallic material shell remote, but the problem that clutter is big, and solve sensing
The electromagnetic induction device of device all surrounds inside the shell, and sensor clutter is small, but the problem that distance of reaction is close, the utility model
One of the embodiment magnetoelectric tachometric transducer of anti-interference type distance of reaction it is remote, and the clutter generated is small.
Based on the above technical solution, the electromagnetic induction device further include:
Induction coil, the induction coil are wound on the iron core；
Magnet steel, the magnet steel inhale the top for being set to the iron core.
When using the device, the rotation gear that iron core directly tests the speed to needs passes through rotation in rotation gear rotary course
The gap variation with iron core of gear, influences the magnetic flux at induction coil, so that induction coil is made to generate sinusoidal ac, into
And ac period is converted into revolution, to measure the revolving speed of rotation gear.
Based on the above technical solution, the iron core includes:
Conical component, the top of the conical component mutually attracts with the magnet steel to be connect, and the induction coil is wound in
In the conical component；
Inductive head, the inductive head is set to the conical component bottom end, and the inductive head part is stretched out the detection and opened
Mouthful.
Induction coil is wound in conical component the sensitivity for the magnetic flux for influencing to generate at induction coil, improves electromagnetism sense
Answer the sensitivity of device.The part of the surface that inductive head is exposed is coated with insulating layer, for making inductive head be isolated from the outside, protects
Protect inductive head.
Based on the above technical solution, insulating support is filled between the main body and the cavity, and described exhausted
Edge pedestal lower end is set between the iron core and induction coil.
Insulating support makes main body and cavity form an entirety, further enhances the anti-interference of electromagnetic induction device
Energy, anti-seismic performance, and greasy dirt can be obstructed, moist external detection environment.
Based on the above technical solution, the shielding shell includes two outer housings mutually fastened.
It shields shell and is fastened by two outer housings and is connected, facilitate the dismounting of shielding shell.
Based on the above technical solution, the main body includes upper housing and lower case, the upper housing and it is described under
Shell is detachably connected.
Upper housing is put into main intracorporal cavity with the convenient electromagnetic sensing device that is detachably connected of lower case.
Based on the above technical solution, gasket is equipped between the main body and the shielding shell.
It prevents shielding shell and main body to be detached from, influences shield effectiveness, and can achieve the effect that moisture-proof oil resistance.
Based on the above technical solution, the electromagnetic induction device is equipped with lead, and the lead stretches out the main body
Setting.
The lead of electromagnetic induction device is directly drawn from main body, is transferred without middle plug, is risen to electromagnetic induction device
To good protective action, and the jamproof ability of speed probe is further increased, and for lead connecting test and shown
Show the back-end devices such as device.
Based on the above technical solution, the main body top is equipped with end cap.
End cap is used for fixed rotating speed sensor, and plays a very good protection to speed probe.
Compared with the prior art, the advantages of the utility model are:
(1) the shielding shell of the magnetoelectric tachometric transducer of one of the utility model anti-interference type is metal material,
The core portion of electromagnetic induction device stretches out detection opening, not only solve sensor sensing using non-metallic material shell away from
From remote, but the problem that clutter is big, and the electromagnetic induction device for solving sensor all surrounds inside the shell, and sensor is miscellaneous
Wave is small, but the problem that distance of reaction is close, the magnetoelectric tachometric sensing of one of the embodiments of the present invention anti-interference type
The distance of reaction of device is remote, and clutter is small.
(2) working principle of the magnetoelectric tachometric transducer of one of the utility model anti-interference type is simple: using should
When device, iron core is directly to the rotation gear that tests the speed of needs, in rotation gear rotary course, passes through rotation gear and iron core
Gap variation, influences the magnetic flux at induction coil, to make induction coil generate sinusoidal ac, and then by ac period
Revolution is converted to, to measure the revolving speed of rotation gear.
Detailed description of the invention
Fig. 1 is a kind of cross-sectional view of the magnetoelectric tachometric transducer of anti-interference type in the utility model embodiment.
In figure: 1- main body, 10- cavity, 11- upper housing, 12- lower case, 2- shield shell, 21- outer housing, 20- detection
Opening, 3- electromagnetic induction device, 30- iron core, 301- conical component, 302- inductive head, 31- induction coil, 32- magnet steel, 4- are exhausted
Edge bracket, 5- gasket, 6- lead, 7- end cap.
Specific embodiment
The embodiments of the present invention are described in further detail below in conjunction with attached drawing.
Shown in Figure 1, the utility model embodiment provides a kind of magnetoelectric tachometric transducer of anti-interference type, packet
Include: main body 1 is equipped with a cavity 10 inside main body 1；Shell 2 is shielded, shielding shell 2 is coated on main body 1, and shields shell 2 and be equipped with
One detection opening 20, and detection opening 20 is connected with cavity 10；It is contained in the electromagnetic induction device 3 of cavity 10, electromagnetic induction
Detection opening 20 is stretched out in 30 part of iron core of device 3.Electromagnetic induction device 3 further include: induction coil 31, induction coil 31 are wound
In on iron core 30；Magnet steel 32, magnet steel 32 inhale the top for being set to iron core 30.
Main body 1 is tubular, and shielding shell 2 is metal material, and 30 part of iron core of electromagnetic induction device 3 is stretched out detection and opened
Mouthfuls 20, but problem that clutter big remote using the sensor sensing distance of non-metallic material shell is not only solved, and solve
The electromagnetic induction device of sensor all surrounds inside the shell, and sensor clutter is small, but the problem that distance of reaction is close, sensing
Device clutter is big, influences tachometric survey as a result, distance of reaction is close, the reality of the utility model quite high to the cost requirement of sensor
The distance of reaction for applying the magnetoelectric tachometric transducer of one of example anti-interference type is remote, and clutter is small.When using the device, iron core 30
Directly to the rotation gear that tests the speed of needs, in rotation gear rotary course, changed by rotation gear and the gap of iron core 30,
The magnetic flux at induction coil 31 is influenced, so that induction coil 31 be made to generate sinusoidal ac, and then ac period is converted
For revolution, to measure the revolving speed of rotation gear.
Iron core 30 in the utility model embodiment includes: conical component 301, the top of conical component 301 and magnet steel 32
Mutually attract connection, and induction coil 31 is wound in conical component 301；Inductive head 302, inductive head 302 are set to conical component 301
Bottom end, and detection opening 20 is stretched out in 302 part of inductive head.Induction coil 31, which is wound in conical component 301, influences induction coil
The sensitivity of the magnetic flux generated at 31 improves the sensitivity of electromagnetic induction device 3.The part table that inductive head 302 is exposed
Bread is covered with insulating layer, for making inductive head 302 be isolated from the outside, protects inductive head 302.
Insulating support 4, and 4 lower end of insulating support are filled between main body 1 in the utility model embodiment and cavity 10
Between iron core 30 and induction coil 33, insulating support 4 makes main body 1 and cavity 2 form an entirety, further enhances electricity
The interference free performance of magnetic-inductive device 3, anti-seismic performance, and greasy dirt can be obstructed, moist external detection environment.Shell 2 is shielded to wrap
Include two outer housings mutually fastened 21.It shields shell 2 and is fastened by two outer housings 21 and is connected, facilitate tearing open for shielding shell 2
Dress.Main body 1 includes upper housing 11 and lower case 12, and upper housing 11 is detachably connected with lower case 12, upper housing 11 and lower case
The 12 detachable convenient electromagnetic sensing device 3 that is connected is put into the cavity 10 in main body 1.It is equipped between main body 1 and shielding shell 2
Gasket 5 prevents shielding shell and main body 1 to be detached from, influences shield effectiveness, and can achieve the effect that moisture-proof oil resistance.Electromagnetic induction
Device 3 is equipped with lead 6, and lead 6 stretches out main body 1 and is arranged, and the lead 6 of electromagnetic induction device 3 is directly drawn from main body 1, is not necessarily to
Middle plug switching, plays good protective action to electromagnetic induction device 3, and further increase the anti-interference of speed probe
Ability, and for the back-end devices such as 6 connecting test of lead and display.And 1 top of main body is equipped with end cap 7, end cap 7 is for solid
Determine speed probe, and plays a very good protection to speed probe.
The utility model is not only limited to above-mentioned preferred forms, anyone can obtain under the enlightenment of the utility model
Other various forms of products out, however, make any variation in its shape or structure, it is all to have and the utility model phase
Same or similar technical solution, within its protection scope.
Claims (9)
1. a kind of magnetoelectric tachometric transducer of anti-interference type, characterized in that it comprises:
Main body (1), the main body (1) is internal to be equipped with a cavity (10)；
It shields shell (2), the shielding shell (2) is coated on the main body (1), and the shielding shell (2) is equipped with a detection
It is open (20), and the detection opening (20) is connected with the cavity (10)；
It is contained in the electromagnetic induction device (3) of the cavity (10), iron core (30) part of the electromagnetic induction device (3) is stretched out
The detection opening (20).
2. magnetoelectric tachometric transducer as described in claim 1, which is characterized in that the electromagnetic induction device (3) further include:
Induction coil (31), the induction coil (31) are wound on the iron core (30)；
Magnet steel (32), the magnet steel (32) inhale the top for being set to the iron core (30).
3. magnetoelectric tachometric transducer as claimed in claim 2, which is characterized in that the iron core (30) includes:
Conical component (301), the top of the conical component (301) mutually attract connection, and the induction with the magnet steel (32)
Coil (31) is wound on the conical component (301)；
Inductive head (302), the inductive head (302) are set to the conical component (301) bottom end, and the inductive head (302) portion
Divide and stretches out the detection opening (20).
4. magnetoelectric tachometric transducer as claimed in claim 2, it is characterised in that:
Insulating support (4) are filled between the main body (1) and the cavity (10), and the insulating support (4) lower end is set to
Between the iron core (30) and induction coil (31).
5. magnetoelectric tachometric transducer as described in claim 1, it is characterised in that:
The shielding shell (2) includes two outer housings mutually fastened (21).
6. magnetoelectric tachometric transducer as described in claim 1, it is characterised in that:
The main body (1) includes upper housing (11) and lower case (12), and the upper housing (11) and the lower case (12) are removable
It unloads connected.
7. magnetoelectric tachometric transducer as described in claim 1, it is characterised in that:
Gasket (5) are equipped between the main body (1) and the shielding shell (2).
8. magnetoelectric tachometric transducer as described in claim 1, it is characterised in that:
The electromagnetic induction device (3) is equipped with lead (6), and the lead (6) stretches out main body (1) setting.
9. magnetoelectric tachometric transducer as described in claim 1, it is characterised in that:
Main body (1) top is equipped with end cap (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820690723.2U CN208188144U (en) | 2018-05-09 | 2018-05-09 | A kind of magnetoelectric tachometric transducer of anti-interference type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820690723.2U CN208188144U (en) | 2018-05-09 | 2018-05-09 | A kind of magnetoelectric tachometric transducer of anti-interference type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208188144U true CN208188144U (en) | 2018-12-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820690723.2U Expired - Fee Related CN208188144U (en) | 2018-05-09 | 2018-05-09 | A kind of magnetoelectric tachometric transducer of anti-interference type |
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| Country | Link |
|---|---|
| CN (1) | CN208188144U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110047602A (en) * | 2019-05-16 | 2019-07-23 | 江苏利核仪控技术有限公司 | Dedicated speed probe of pressurized-water reactor nuclear power plant reactor main coolant pump and preparation method thereof |
| CN115060924A (en) * | 2022-08-18 | 2022-09-16 | 四川新川航空仪器有限责任公司 | Magnetic shielding-based rotation speed sensor |
-
2018
- 2018-05-09 CN CN201820690723.2U patent/CN208188144U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110047602A (en) * | 2019-05-16 | 2019-07-23 | 江苏利核仪控技术有限公司 | Dedicated speed probe of pressurized-water reactor nuclear power plant reactor main coolant pump and preparation method thereof |
| CN110047602B (en) * | 2019-05-16 | 2024-05-07 | 江苏利核仪控技术有限公司 | Special rotating speed sensor for main coolant pump of pressurized water reactor nuclear power station reactor and manufacturing method thereof |
| CN115060924A (en) * | 2022-08-18 | 2022-09-16 | 四川新川航空仪器有限责任公司 | Magnetic shielding-based rotation speed sensor |
| CN115060924B (en) * | 2022-08-18 | 2022-11-11 | 四川新川航空仪器有限责任公司 | Magnetic shielding-based rotation speed sensor |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181204 |