CN104977423A - Magneto-electric speed sensor - Google Patents
Magneto-electric speed sensor Download PDFInfo
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- CN104977423A CN104977423A CN201510344473.8A CN201510344473A CN104977423A CN 104977423 A CN104977423 A CN 104977423A CN 201510344473 A CN201510344473 A CN 201510344473A CN 104977423 A CN104977423 A CN 104977423A
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- shell
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- tachometric transducer
- magnetoelectric tachometric
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Abstract
A magneto-electric speed sensor relates to the technical field of test. A frame is a ladder-like casing composed of a narrow tube and a wide tube, and the frame is internally provided with a ladder hole. An armature is T-shaped, and the narrower end of the armature passes through the narrow tube at the front end of the frame so that the armature is tightly nested into the ladder hole in the frame. The front end of a steel magnet is close to the rear end of the armature. The front end of the steel magnet is nested into the wide tube at the rear end of the frame, and the rear end of the steel magnet is nested into a blind hole at the front end of a steel magnet sleeve. The rear end of the outer wall of the wide tube of the frame is provided with a flat slot. One end of a pin is fixed into the flat slot, and the other end of the pin passes through the inside of a shell and goes out of the rear end of the steel magnet sleeve. An enameled wire coil is wired through a long slot in the outer side wall of the frame. The steel magnet sleeve is tightly nested into a ladder hole inside the shell. The magneto-electric speed sensor of the invention can resist high-frequency vibration and the interference of a high-temperature environment and provide accurate speed measurement data.
Description
Technical field
The present invention relates to a kind of magnetoelectric tachometric transducer, belong to technical field of measurement and test.
Background technology
Aeromotor is the mechanical hook-up of a kind of high temperature, High Rotation Speed, its duty is different from general rotating machinery, be in the rugged surroundings of high temperature, humidity, mist of oil and vibration, require harsh to the measurement mechanism measuring rotating speed running status, need high reliability and resistance to vibration.Tachometric survey is the key problem in technology of field of aviation measurement and test, measurement means directly determines Aerial Testing System performance, existing magnetoelectric tachometric transducer normally open-flux path becomes magnetic flux type, draw the end of a thread connection binding post by enamel wire coil winding permanent magnet and then transmit signals to messaging device, but the type sensor bulk weight is all larger, be not suitable for airborne survey, and without encapsulation agent, inside is protected, if damp and hot, greasy dirt, the external environment condition that works under vibration environment can affect the performance of inner body, armature mostly is single right cylinder, work under being arranged on high vibration environment easily to deviate from from front end.The accuracy of its measurement data can be greatly affected, and speed probe itself is also easy damages under severe measurement environment, therefore needs development a kind of high temperature resistant, has the rotation-speed measuring device of high reliability and resistance to vibration.
Summary of the invention
For the deficiency that prior art exists, the object of the present invention is to provide a kind of magnetoelectric tachometric transducer, existing speed probe be high in vibration frequency to solve, can not accurately detect under the state of acquisition environment high temperature the problem of aeromotor rotating speed.
For achieving the above object, the technical scheme taked of the present invention is as follows:
A kind of magnetoelectric tachometric transducer, comprise: skeleton, enamel wire coil, armature, magnet steel, magnetic steel sleeve, contact pin and shell, it is characterized in that: described skeleton has T-shaped ladder hole, notch cuttype through hole front end is closely inserted for armature, notch cuttype through hole back-end inserts for the front end of magnet steel, fit in front end and the armature rear end of magnet steel, described magnetic steel sleeve one end is provided with the blind hole inserted for magnet steel, skeleton both sides are processed with the v-depression for enamel wire coil cabling respectively, skeleton both-side ends respectively has rising as high as the banks of a fixing plug pin, the end of a thread that enamel wire coil is drawn is fixedly connected with contact pin, skeleton, enamel wire coil, armature, magnet steel, the subassembly that magnetic steel sleeve and pin groups are dressed up is packaged in shell.
Further, the subassembly dressed up of described skeleton, enamel wire coil, armature, magnet steel, magnetic steel sleeve and pin groups and shell are filled in gap place encapsulate by encapsulating agent.
Further, described skeleton front end face can overlap with case nose face.
Further, described contact pin is two, contact pin is also provided with the aperture for the welding of enameled wire lead-out wires of coil head.
Further, outer casing inner wall is provided with a circle inboard wall groove.
Preferably, the material of magnet steel is LvNiCo permanent magnet.
Further, described magnetoelectric tachometric transducer also comprises nut, and the circumferential lateral surface of described shell is provided with screw thread, and nut is threaded with shell outer ring.
Further, nut has two, and on nut, direction perpendicular to axial direction offers two through holes, and two through holes are symmetrical arranged relative to the center line of nut.
Further, described casing ends is provided with the screw thread identical with interface unit.
The present invention has following beneficial effect: the present invention proposes a kind of magnetoelectric tachometric transducer, this invention operationally, because encapsulation agent mode that its inside is solidly fixed its inner member and external environment condition are isolated can stand damp and hot, the working environment of greasy dirt, and high-frequency vibration can be withstood and do not damage, and core parts have selected resistant to elevated temperatures material to make, make this speed probe can normal operation in high temperature environments, armature is designed to T idiomorphism, and unconventional cylindrical work under vibration can not be deviate from from front end, sensor stability is good, accurate data, be applicable to the rotation speed monitoring of aeromotor.
Accompanying drawing explanation
Fig. 1 is the cut-open view of a kind of magnetoelectric tachometric transducer of the present invention;
Fig. 2 is the inner structure schematic diagram of a kind of magnetoelectric tachometric transducer of the present invention;
Fig. 3 is the cut-away view of outer cover of Fig. 1;
Fig. 4 is the skeleton structure schematic diagram of a kind of magnetoelectric tachometric transducer of the present invention.
Wherein, 1-skeleton, 2-enamel wire coil, 3-armature, 4-encapsulate agent, 5-magnet steel, 6-magnetic steel sleeve, 7-contact pin, 8-shell, 9-nut, I-inboard wall groove, II-to rise as high as the banks, III-V-type groove.
Embodiment
Specific embodiments of the invention are as follows:
As shown in Figure 1 to 4, a kind of magnetoelectric tachometric transducer, comprise: skeleton 1, enamel wire coil 2, armature 3, magnet steel 5, magnetic steel sleeve 6, contact pin 7 and shell 8, described skeleton 1 has T-shaped ladder hole, notch cuttype through hole front end is closely inserted for armature 3, notch cuttype through hole back-end inserts for magnet steel 5 front end, fit in magnet steel 5 front end and armature 3 rear end, described magnetic steel sleeve 6 one end is provided with the blind hole inserted for magnet steel 5, skeleton 1 both sides are processed with the v-depression III for enamel wire coil 2 cabling respectively, what skeleton 1 both-side ends respectively had a fixing plug pin 7 rises as high as the banks II, the end of a thread that enamel wire coil 2 is drawn is fixedly connected with contact pin 7, skeleton 1, enamel wire coil 2, armature 3, magnet steel 5, the subassembly that magnetic steel sleeve 6 and contact pin 7 are assembled into is packaged in shell 8.
The subassembly that described skeleton 1, enamel wire coil 2, armature 3, magnet steel 5, magnetic steel sleeve 6 and contact pin 7 are assembled into and shell 8 are filled in gap place encapsulate by encapsulating agent 4, subassembly and shell is made to form an entirety with this, further enhancing the anti-seismic performance of sensor, and can greasy dirt be intercepted, moist external detection environment.
Described skeleton 1 front end face can overlap with shell 8 front end face.
Described contact pin 7 is two, and contact pin 7 is also provided with the aperture of drawing the end of a thread welding for enamel wire coil 2, the diameter of aperture is 0.5mm.
Shell 8 inwall is provided with a circle inboard wall groove I, is convenient to encapsulation agent 4 and pours in inboard wall groove I in liquid situation.
The material of magnet steel 5 is LvNiCo permanent magnet.
Described magnetoelectric tachometric transducer also comprises nut 9, and the circumferential lateral surface of described shell 8 is provided with screw thread, and nut 9 is threaded with shell 8 outer ring.
Nut 9 has two, and on nut 9, direction perpendicular to axial direction offers two through holes, and two through holes are symmetrical arranged relative to the center line of nut 9, and the through hole on nut 9 is for being fixed on support by sensor.
Described shell 8 end is provided with the screw thread identical with interface unit.
The practical approach of this device: when using this device, by two nuts 9, this device is fixed on support, armature 3 is straight to swing pinion, in swing pinion rotary course, changing with the gap of armature 3 by swing pinion, affect the magnetic flux at enamel wire coil 2 place, thus make enamel wire coil 2 produce sinusoidal ac, and then ac period is converted to revolution.
Claims (9)
1. a magnetoelectric tachometric transducer, comprise: skeleton (1), enamel wire coil (2), armature (3), magnet steel (5), magnetic steel sleeve (6), contact pin (7) and shell (8), it is characterized in that: described skeleton (1) has T-shaped ladder hole, notch cuttype through hole front end is closely inserted for armature (3), notch cuttype through hole back-end inserts for magnet steel (5) front end, fit in magnet steel (5) front end and armature (3) rear end, described magnetic steel sleeve (6) one end is provided with the blind hole inserted for magnet steel (5), skeleton (1) both sides are processed with the v-depression (III) for enamel wire coil (2) cabling respectively, skeleton 1 both-side ends respectively has rise as high as the banks (II) of a fixing plug pin (7), the end of a thread that enamel wire coil (2) is drawn is fixedly connected with contact pin (7), skeleton (1), enamel wire coil (2), armature (3), magnet steel (5), the subassembly that magnetic steel sleeve (6) and contact pin (7) are assembled into is packaged in shell (8).
2. a kind of magnetoelectric tachometric transducer according to claim 1, is characterized in that: the subassembly that described skeleton (1), enamel wire coil (2), armature (3), magnet steel (5), magnetic steel sleeve (6) and contact pin (7) are assembled into and shell (8) are filled in gap place encapsulate by encapsulating agent (4).
3. a kind of magnetoelectric tachometric transducer according to claim 1 and 2, is characterized in that: described skeleton (1) front end face can overlap with shell (8) front end face.
4. a kind of magnetoelectric tachometric transducer according to claim 1 and 2, is characterized in that: described contact pin (7) is two, contact pin (7) is also provided with the aperture of drawing the end of a thread welding for enamel wire coil (2).
5. a kind of magnetoelectric tachometric transducer according to claim 1 and 2, is characterized in that: shell (8) inwall is provided with a circle inboard wall groove (I).
6. a kind of magnetoelectric tachometric transducer according to claim 1 and 2, is characterized in that: the material of magnet steel (5) is LvNiCo permanent magnet.
7. a kind of magnetoelectric tachometric transducer according to claim 1 and 2, it is characterized in that: described magnetoelectric tachometric transducer also comprises nut (9), the circumferential lateral surface of described shell (8) is provided with screw thread, and nut (9) is threaded with shell (8) outer ring.
8. a kind of magnetoelectric tachometric transducer according to claim 7, it is characterized in that: nut (9) has two, the upper direction perpendicular to axial direction of nut (9) offers two through holes, and two through holes are symmetrical arranged relative to the center line of nut (9).
9. a kind of magnetoelectric tachometric transducer according to claim 1 and 2, is characterized in that: described shell (8) end is provided with the screw thread identical with interface unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510344473.8A CN104977423B (en) | 2015-06-19 | 2015-06-19 | A kind of magnetoelectric tachometric transducer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510344473.8A CN104977423B (en) | 2015-06-19 | 2015-06-19 | A kind of magnetoelectric tachometric transducer |
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| CN104977423A true CN104977423A (en) | 2015-10-14 |
| CN104977423B CN104977423B (en) | 2017-12-01 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107153125A (en) * | 2017-07-03 | 2017-09-12 | 陆博汽车电子（曲阜）有限公司 | Sensor framework assembly, wheel speed sensors and motor vehicle |
| CN107884195A (en) * | 2017-10-12 | 2018-04-06 | 北京航天动力研究所 | A kind of speed probe and rotation-speed measuring device |
| 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 |
| CN110196341A (en) * | 2019-05-27 | 2019-09-03 | 中国航空工业集团公司上海航空测控技术研究所 | A kind of magnetoelectric tachometric measurement structure |
| CN110763863A (en) * | 2019-11-19 | 2020-02-07 | 中国航空工业集团公司上海航空测控技术研究所 | Magnetoelectric rotating speed measuring device |
| CN110940827A (en) * | 2019-10-30 | 2020-03-31 | 北京遥测技术研究所 | Magnetoelectric revolution speed transducer suitable for large-interval measurement |
| CN114413940A (en) * | 2022-01-27 | 2022-04-29 | 厦门乃尔电子有限公司 | Ultra-high temperature sensor |
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| WO1998055834A1 (en) * | 1997-06-02 | 1998-12-10 | Matsushita Electric Industrial Co., Ltd. | Rotational speed sensor |
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| JP2000266771A (en) * | 1999-03-19 | 2000-09-29 | Hitachi Cable Ltd | Wheel speed sensor using magnetoelectric conversion element |
| CN101315390A (en) * | 2008-06-27 | 2008-12-03 | 深圳市特尔佳科技股份有限公司 | Magnetoelectricity type passive velocity transducer and manufacturing technology thereof |
| CN202230097U (en) * | 2011-08-23 | 2012-05-23 | 大连美天三有电子仪表有限公司 | Magneto-electric rotating speed sensor |
| CN202330450U (en) * | 2011-10-16 | 2012-07-11 | 大同北方天力增压技术有限公司 | Magnetoelectric rotating speed sensor |
| CN103675323A (en) * | 2013-12-02 | 2014-03-26 | 施董腾 | Magnetoelectric tachometric transducer and test device thereof |
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2015
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| Publication number | Priority date | Publication date | Assignee | Title |
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| RU2018127C1 (en) * | 1991-12-09 | 1994-08-15 | Научно-Исследовательский Институт Приборостроения | Shaft rotary speed sensor |
| US5631556A (en) * | 1995-06-20 | 1997-05-20 | Mitsubishi Denki Kabushiki Kaisha | Rotation sensor device and method of manufacturing the same including a doubled up mounting bracket for electrical contact |
| KR0165713B1 (en) * | 1995-06-26 | 1999-03-20 | 기따오까 다까시 | Rotation sensor and method for manufacturing the same |
| WO1998055834A1 (en) * | 1997-06-02 | 1998-12-10 | Matsushita Electric Industrial Co., Ltd. | Rotational speed sensor |
| JP2000266771A (en) * | 1999-03-19 | 2000-09-29 | Hitachi Cable Ltd | Wheel speed sensor using magnetoelectric conversion element |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107153125A (en) * | 2017-07-03 | 2017-09-12 | 陆博汽车电子（曲阜）有限公司 | Sensor framework assembly, wheel speed sensors and motor vehicle |
| CN107153125B (en) * | 2017-07-03 | 2024-02-13 | 陆博汽车电子（曲阜）有限公司 | Sensor skeleton assembly, wheel speed sensor and motor vehicle |
| CN107884195A (en) * | 2017-10-12 | 2018-04-06 | 北京航天动力研究所 | A kind of speed probe and rotation-speed measuring device |
| 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 |
| CN110196341A (en) * | 2019-05-27 | 2019-09-03 | 中国航空工业集团公司上海航空测控技术研究所 | A kind of magnetoelectric tachometric measurement structure |
| CN110940827A (en) * | 2019-10-30 | 2020-03-31 | 北京遥测技术研究所 | Magnetoelectric revolution speed transducer suitable for large-interval measurement |
| CN110940827B (en) * | 2019-10-30 | 2022-02-01 | 北京遥测技术研究所 | Magnetoelectric revolution speed transducer suitable for large-interval measurement |
| CN110763863A (en) * | 2019-11-19 | 2020-02-07 | 中国航空工业集团公司上海航空测控技术研究所 | Magnetoelectric rotating speed measuring device |
| CN114413940A (en) * | 2022-01-27 | 2022-04-29 | 厦门乃尔电子有限公司 | Ultra-high temperature sensor |
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| CN104977423B (en) | 2017-12-01 |
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