CN109489602A - A kind of radial direction for magnetic suspension bearing and axial combination sensor - Google Patents
A kind of radial direction for magnetic suspension bearing and axial combination sensor Download PDFInfo
- Publication number
- CN109489602A CN109489602A CN201811548501.8A CN201811548501A CN109489602A CN 109489602 A CN109489602 A CN 109489602A CN 201811548501 A CN201811548501 A CN 201811548501A CN 109489602 A CN109489602 A CN 109489602A
- Authority
- CN
- China
- Prior art keywords
- rotor
- sensor
- mounting hole
- boss portion
- installation seat
- 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.)
- Pending
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
The invention discloses a kind of radial directions for magnetic suspension bearing and axial combination sensor, sensor installation seat including rotor, displacement sensor and round, the rotor is equipped with boss portion, the end of boss portion is the cone structure to contract, sensor installation seat is coaxially set in boss portion on the circumferencial direction of the conical surface, mounting hole there are four being evenly distributed in the circumferencial direction of sensor installation seat, and mounting hole is arranged along the radial direction of rotor, and a displacement sensor is arranged in each mounting hole.Present invention eliminates shaft position sensors, keep structure simple, save space, and rotor structure is simple, shortens axial length, improve the intrinsic frequency of rotor.
Description
Technical field:
The present invention relates to a kind of radial directions for magnetic suspension bearing and axial combination sensor.
Background technique:
The radial direction of rotor 1 and axial change in displacement need to use two kinds of sensors (as schemed in existing magnetic suspension bearing
2), in 4 radial displacement transducers of the circumference uniform distribution of rotor 1, to detect the radial position of rotor.It is installed in 1 one end of rotor
One shaft position sensor, to detect the axial position of rotor.Using two sensors, the axial peace of rotor 1 can be made
Dress space becomes larger, and increases rotor axial length.
Summary of the invention:
The present invention is to provide a kind of radial direction for magnetic suspension bearing to solve the above-mentioned problems of the prior art
With axial combination sensor.
The technical solution adopted in the present invention has: a kind of radial direction for magnetic suspension bearing and axial combination sensor,
Sensor installation seat including rotor, displacement sensor and round, the rotor are equipped with boss portion, and the end of boss portion is
To the cone structure of contract, sensor installation seat is coaxially set in boss portion on the circumferencial direction of the conical surface, is pacified in sensor
The circumferencial direction of dress seat is uniformly distributed, and there are four mounting holes, and mounting hole is arranged along the radial direction of rotor, in each mounting hole
One displacement sensor is set.
Further, the angle between the boss portion end conical surface and rotor axis is 30 ° -45 °.
Further, casting glue is filled in the mounting hole of the sensor installation seat.
The invention has the following beneficial effects:
1, shaft position sensor is eliminated, keeps structure simple, saves space；
2, rotor structure is simple, shortens axial length, improves the intrinsic frequency of rotor.
Detailed description of the invention:
Fig. 1 is structure of the invention figure.
Fig. 2 is the layout drawing of this peritrochanteric radial displacement transducer and shaft position sensor in the prior art.
Specific embodiment:
The present invention will be further described below with reference to the drawings.
Such as Fig. 1, a kind of radial direction for magnetic suspension bearing of the invention and axial combination sensor, including rotor 1, displacement
Sensor 2 and sensor installation seat 3, are equipped with boss portion 11 on rotor 1, and 11 end of boss portion is the conical surface knot to contract
Structure, the angle between 1 axis of the conical surface and rotor is 30 ° -45 °.
Sensor installation seat 3 is coaxially set in boss portion 11 on the circumferencial direction of the conical surface, in the circle of sensor installation seat 3
Circumferential direction is uniformly distributed, and there are four mounting holes 31, and mounting hole 31 is arranged along the radial direction of rotor 1, sets in each mounting hole 31
Set a displacement sensor 2.
Casting glue is filled in the mounting hole 31 of sensor installation seat 3.
The present invention eliminates original shaft position sensor, and the detection faces of rotor are made into the conical surface, and rotor axial position becomes
When change, the axial position bigger than normal and less than normal to judge rotor of the numerical value of all the sensors.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
It for member, can also make several improvements without departing from the principle of the present invention, these improvement also should be regarded as of the invention
Protection scope.
Claims (3)
1. a kind of radial direction for magnetic suspension bearing and axial combination sensor, it is characterised in that: including rotor (1), displacement
The sensor installation seat (3) of sensor (2) and round, the rotor (1) are equipped with boss portion (11), the end of boss portion (11)
End is the cone structure to contract, and sensor installation seat (3) is coaxially set in boss portion (11) on the circumferencial direction of the conical surface,
There are four being evenly distributed in the circumferencial direction of sensor installation seat (3) mounting hole (31), and mounting hole (31) is along the radial direction of rotor (1)
Direction setting, is arranged a displacement sensor (2) in each mounting hole (31).
2. as described in claim 1 for the radial direction of magnetic suspension bearing and axial combination sensor, it is characterised in that: described
Angle between boss portion (11) the end conical surface and rotor (1) axis is 30 ° -45 °.
3. as described in claim 1 for the radial direction of magnetic suspension bearing and axial combination sensor, it is characterised in that: described
Casting glue is filled in the mounting hole (31) of sensor installation seat (3).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811548501.8A CN109489602A (en) | 2018-12-18 | 2018-12-18 | A kind of radial direction for magnetic suspension bearing and axial combination sensor |
| PCT/CN2019/106742 WO2020125103A1 (en) | 2018-12-18 | 2019-09-19 | Radial and axial combined sensor for magnetic suspension bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811548501.8A CN109489602A (en) | 2018-12-18 | 2018-12-18 | A kind of radial direction for magnetic suspension bearing and axial combination sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109489602A true CN109489602A (en) | 2019-03-19 |
Family
ID=65710768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811548501.8A Pending CN109489602A (en) | 2018-12-18 | 2018-12-18 | A kind of radial direction for magnetic suspension bearing and axial combination sensor |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109489602A (en) |
| WO (1) | WO2020125103A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020125103A1 (en) * | 2018-12-18 | 2020-06-25 | 南京磁谷科技有限公司 | Radial and axial combined sensor for magnetic suspension bearing |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB995470A (en) * | 1962-05-22 | 1965-06-16 | Bbc Brown Boveri & Cie | Apparatus for the monitoring of fluid bearings |
| CN1544878A (en) * | 2003-11-14 | 2004-11-10 | 清华大学 | Method for measuring axial displacement of electromagnet bearing rotor |
| CN1818540A (en) * | 2006-03-17 | 2006-08-16 | 清华大学 | Method and sensor for measuring axial displacement of ratation axis radially |
| CN205300548U (en) * | 2016-01-12 | 2016-06-08 | 天津飞旋科技研发有限公司 | Rotor axial displacement detecting system |
| CN107314737A (en) * | 2017-07-12 | 2017-11-03 | 武汉理工大学 | A kind of magnetic suspension rotor axial displacement radial measurement method |
| CN209386991U (en) * | 2018-12-18 | 2019-09-13 | 南京磁谷科技有限公司 | A kind of radial direction for magnetic suspension bearing and axial combination sensor |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2062875B (en) * | 1979-11-03 | 1983-08-10 | Lucas Industries Ltd | Rotation and axial displacemetn transducers |
| SU1023194A1 (en) * | 1980-12-16 | 1983-06-15 | Рижский Краснознаменный Институт Инженеров Гражданской Авиации Им.Ленинского Комсомола | Transducer for measuring displacements of shaft axis |
| SU1421986A2 (en) * | 1987-03-10 | 1988-09-07 | Рижский Краснознаменный Институт Инженеров Гражданской Авиации Им.Ленинского Комсомола | Transducer for measuring offset of shaft axis |
| JP2573853B2 (en) * | 1987-11-10 | 1997-01-22 | 光洋精工株式会社 | 5-axis control type magnetic bearing |
| CN105352466B (en) * | 2015-12-14 | 2018-03-20 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of device for detecting axial displacement, method and magnetic suspension bearing |
| CN206850573U (en) * | 2017-06-15 | 2018-01-05 | 深圳麦格动力技术有限公司 | Rotating shaft protection and radial displacement detection structure, magnetic suspension motor and domestic air conditioning |
| CN109489602A (en) * | 2018-12-18 | 2019-03-19 | 南京磁谷科技有限公司 | A kind of radial direction for magnetic suspension bearing and axial combination sensor |
-
2018
- 2018-12-18 CN CN201811548501.8A patent/CN109489602A/en active Pending
-
2019
- 2019-09-19 WO PCT/CN2019/106742 patent/WO2020125103A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB995470A (en) * | 1962-05-22 | 1965-06-16 | Bbc Brown Boveri & Cie | Apparatus for the monitoring of fluid bearings |
| CN1544878A (en) * | 2003-11-14 | 2004-11-10 | 清华大学 | Method for measuring axial displacement of electromagnet bearing rotor |
| CN1818540A (en) * | 2006-03-17 | 2006-08-16 | 清华大学 | Method and sensor for measuring axial displacement of ratation axis radially |
| CN205300548U (en) * | 2016-01-12 | 2016-06-08 | 天津飞旋科技研发有限公司 | Rotor axial displacement detecting system |
| CN107314737A (en) * | 2017-07-12 | 2017-11-03 | 武汉理工大学 | A kind of magnetic suspension rotor axial displacement radial measurement method |
| CN209386991U (en) * | 2018-12-18 | 2019-09-13 | 南京磁谷科技有限公司 | A kind of radial direction for magnetic suspension bearing and axial combination sensor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020125103A1 (en) * | 2018-12-18 | 2020-06-25 | 南京磁谷科技有限公司 | Radial and axial combined sensor for magnetic suspension bearing |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020125103A1 (en) | 2020-06-25 |
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