CN212780866U - Magnetoelectric revolution speed transducer - Google Patents
Magnetoelectric revolution speed transducer Download PDFInfo
- Publication number
- CN212780866U CN212780866U CN202022218429.1U CN202022218429U CN212780866U CN 212780866 U CN212780866 U CN 212780866U CN 202022218429 U CN202022218429 U CN 202022218429U CN 212780866 U CN212780866 U CN 212780866U
- Authority
- CN
- China
- Prior art keywords
- magnetoelectric
- socket
- casing
- speed sensor
- pole
- 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.)
- Active
Links
Images
Landscapes
- Measuring Magnetic Variables (AREA)
Abstract
The utility model discloses a magnetoelectric tachometric transducer, including insulating cover, independently be equipped with three pole shoes in the insulating cover, every pole shoe periphery respectively twines has a set of coil, and all coils are mutually independent, and measured object can all be aimed at to every pole shoe to realize the synchronous output signal of three redundancies.
Description
Technical Field
The utility model relates to a sensor field, in particular to magnetoelectric revolution speed transducer.
Background
When the magnetoelectric revolution speed transducer is used, the pole shoe is aligned to a measured object, when the measured object rotates, gaps between the measured object and the pole shoe change alternately, so that the magnetic resistance of a magnetic circuit of the coil changes alternately, the magnetic flux of the coil changes accordingly, the coil generates induced electromotive force, and voltage signals are output, so that the revolution speed of the measured object is obtained. The magnetoelectric speed sensor has the advantages of strong adaptability, strong anti-interference performance and the like, and is widely applied to measuring the rotating speed of gears, crankshafts or spokes working in special environments such as smoke, oil gas or water vapor.
The conventional magnetoelectric rotating speed sensor cannot synchronously output redundancy signals due to structural limitation, and can output limited accurate signals to influence the detection precision.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a magnetoelectric tachometric transducer, including three pole shoes, every pole shoe independently overlaps has a coil, realizes the synchronous output signal of three redundancies.
The specific scheme is as follows:
the utility model provides a magnetoelectric tachometric transducer, including insulating cover, independently be equipped with three pole shoes in the insulating cover, every pole shoe periphery respectively twines has a set of coil, and whole coil mutual independence is in order to realize the synchronous output signal of three redundancies.
Preferably, the three pole shoes are distributed in a triangular shape.
Preferably, the magnetic steel is further included, and the three pole shoes are integrally connected with the magnetic steel.
Preferably, still including the casing of cover in the magnet steel periphery, it has epoxy to fill between magnet steel and the casing.
Preferably, a socket is installed at one end, far away from the pole shoe, of the shell, three independent contact pins are fixedly arranged in the socket, and the three contact pins are connected with the three coils in a one-to-one correspondence mode through three power supply wires.
Preferably, the housing is provided with a mounting groove for mounting the socket, and the socket is fixed in the mounting groove by a fastening screw.
Preferably, the periphery of the shell is provided with an annular groove, and a sealing ring is arranged in the annular groove.
Compared with the prior art, the utility model provides a magnetoelectric tachometric transducer, including insulating cover, independently be equipped with three pole shoes in the insulating cover, every pole shoe periphery respectively twines has a set of coil, and all coils are mutually independent, and measured object can all be aimed at to every pole shoe to realize the synchronous output signal of three redundancies.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a cross-sectional view of a magnetoelectric tachometric transducer according to an embodiment of the present invention;
fig. 2 is an assembled view of the insulating sleeve, pole piece and coil of fig. 1.
The reference numbers are as follows:
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In order to make the technical field of the present invention better understand, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1 and fig. 2, fig. 1 is a cross-sectional view of a magnetoelectric tachometric transducer according to an embodiment of the present invention; fig. 2 is an assembled view of the insulating sleeve, pole piece and coil of fig. 1.
The embodiment of the utility model discloses magnetoelectric tachometric transducer, including insulating cover 1, independently be equipped with three pole shoes 2 in the insulating cover 1, every pole shoe 2 is used for the induction magnetic field to change, so every pole shoe 2 possesses the magnetic conduction function. Each pole shoe 2 may in particular be a metal rod. In order to make the structure more compact, the three pole shoes 2 are distributed in a triangular shape in the insulating sleeve 1.
A group of coils 3 are wound on the periphery of each pole shoe 2, all the coils 3 are mutually independent, and each pole shoe 2 can be aligned to a measured object, so that a synchronous output signal with three redundancies is realized. Each group of coils 3 comprises a framework and an enameled wire wound on the framework, so that the coils 3 become carriers of induction signals.
The utility model discloses still including the magnet steel 4 that is used for producing magnetic field, three pole shoes 2 link to each other with 4 integral types of magnet steel. The central lines of the three pole shoes 2 are all parallel to the central line of the magnetic steel 4.
The utility model discloses still including the casing 5 that is used for bearing each part, casing 5 overlaps outside magnet steel 4, and it has epoxy glue 6 to fill between magnet steel 4 and the casing 5, makes epoxy glue 6 stick magnet steel 4 and casing 5 together, and epoxy glue 6 separates magnet steel 4 and casing 5 because of good insulating nature simultaneously. In addition, the gap between the insulating sleeve 1 and the shell 5 is also filled with epoxy glue 6.
In this embodiment, a socket 7 is installed at an end of the housing 5 away from the pole piece 2, three independent contact pins are fixedly installed in the socket 7, and the three contact pins are connected with the three coils 3 through three power lines 8 in a one-to-one correspondence manner, so that the coils 3 are electrically connected with the socket 7. The socket 7 further comprises an insulating base, and the three contact pins are integrally fixed on the insulating base in a triangular shape.
One end of the shell 5, which is far away from the pole shoe 2, is provided with a mounting groove, and the socket 7 is mounted in the mounting groove. In order to reliably connect the socket 7 and the coil 3, the socket 7 is fixed on the groove edge of the mounting groove through a fastening screw 9, and the socket 7 is prevented from being separated due to external force or impact.
In order to prevent oil leakage, the periphery of the shell 5 is provided with an annular groove, and a sealing ring 10 is arranged in the annular groove. The seal ring 10 is specifically an O-ring rubber seal ring, but is not limited thereto.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. The utility model provides a magnetoelectric tachometric transducer, its characterized in that, includes insulating cover (1), independently be equipped with three pole shoes (2) in insulating cover (1), every pole shoe (2) periphery respectively twines has a set of coil (3), and is whole coil (3) mutual independence is in order to realize the synchronous output signal of three redundancies.
2. Magnetoelectric tachogenerator according to claim 1, characterized in that the three pole shoes (2) are distributed in a triangular shape.
3. The magnetoelectric rotation speed sensor according to claim 1, further comprising a magnetic steel (4), wherein the three pole shoes (2) are integrally connected with the magnetic steel (4).
4. The magnetoelectric rotation speed sensor according to claim 3, further comprising a casing (5) sleeved on the periphery of the magnetic steel (4), wherein epoxy glue (6) is filled between the magnetic steel (4) and the casing (5).
5. The magnetoelectric revolution speed sensor according to claim 4, characterized in that a socket (7) is installed at one end of the casing (5) far away from the pole shoe (2), three independent contact pins are fixedly arranged in the socket (7), and the three contact pins are correspondingly connected with the three coils (3) through three power lines (8).
6. Magnetoelectric tachogenerator according to claim 5, characterized in that the housing (5) is provided with a mounting groove for mounting the socket (7), in which mounting groove the socket (7) is fixed by means of a fastening screw (9).
7. The magnetoelectric rotation speed sensor according to any one of claims 4 to 6, wherein the outer periphery of the casing (5) is provided with an annular groove in which a seal ring (10) is fitted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022218429.1U CN212780866U (en) | 2020-09-30 | 2020-09-30 | Magnetoelectric revolution speed transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022218429.1U CN212780866U (en) | 2020-09-30 | 2020-09-30 | Magnetoelectric revolution speed transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212780866U true CN212780866U (en) | 2021-03-23 |
Family
ID=75056952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022218429.1U Active CN212780866U (en) | 2020-09-30 | 2020-09-30 | Magnetoelectric revolution speed transducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212780866U (en) |
-
2020
- 2020-09-30 CN CN202022218429.1U patent/CN212780866U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207049193U (en) | A kind of permanent magnetism off-set magnetic suspension unit and magnetic suspension motor | |
| CN109178186B (en) | Reverse magnetostriction center shaft moment sensor | |
| CN203443595U (en) | Contactless potentiometer | |
| CN101299048A (en) | Rotating angular acceleration sensor | |
| WO2023221953A1 (en) | High-precision multi-antipode magnetoelectric encoder | |
| CN212780866U (en) | Magnetoelectric revolution speed transducer | |
| CN207798869U (en) | A kind of rotating speed Magnetic Sensor of double remaining synchronism outputs | |
| CN108562308A (en) | A pair of of pole magnetoresistance transformer device | |
| CN110311514B (en) | External rotor brushless motor with absolute origin signal | |
| CN110601401A (en) | Motor rotor assembly and motor | |
| CN113640538A (en) | Magnetoelectric revolution speed transducer and revolution speed detecting system | |
| CN207664758U (en) | A kind of under-water DC brushless motor for realizing static seal | |
| CN213515469U (en) | Angle sensor based on digital signal | |
| CN210468927U (en) | Motor rotor assembly and motor | |
| CN108539931A (en) | Using rotary transformer as the servo drive of sensor | |
| CN207819696U (en) | Using rotary transformer as the servo drive of sensor | |
| CN107634605B (en) | Motor with a stator having a stator core | |
| CN207664732U (en) | Torque actuator | |
| CN217331452U (en) | Electromagnetic torque sensor | |
| CN218270586U (en) | Angle sensor | |
| CN218481534U (en) | Small-size magnetoelectric tachometric transducer | |
| CN200986757Y (en) | AC generator of cylinder rotor | |
| CN115912801B (en) | Device and method for detecting rotor position of direct-current brushless motor | |
| CN210431036U (en) | Outer rotor hollow shaft brushless motor | |
| CN112379117B (en) | Magnetoelectric rotation angular velocity and angular acceleration integrated sensor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |