CN109470192A - A kind of mounting structure of electromagnetic bearing axial sensor - Google Patents
A kind of mounting structure of electromagnetic bearing axial sensor Download PDFInfo
- Publication number
- CN109470192A CN109470192A CN201811548451.3A CN201811548451A CN109470192A CN 109470192 A CN109470192 A CN 109470192A CN 201811548451 A CN201811548451 A CN 201811548451A CN 109470192 A CN109470192 A CN 109470192A
- Authority
- CN
- China
- Prior art keywords
- thrust
- sensor
- mounting hole
- axial
- axial sensor
- 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
Links
- 238000006073 displacement reaction Methods 0.000 claims abstract description 8
- 238000005266 casting Methods 0.000 claims abstract description 4
- 239000003292 glue Substances 0.000 claims abstract description 4
- 238000009434 installation Methods 0.000 claims abstract description 4
- 238000001514 detection method Methods 0.000 abstract description 2
- 238000005259 measurement Methods 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
The invention discloses a kind of mounting structures of electromagnetic bearing axial sensor, including rotor, thrust magnetic bearing, thrust disc and axial sensor, one thrust disc and two thrust magnetic bearings are sheathed on rotor, and thrust disc is placed between two thrust magnetic bearings, sensor mounting hole there are two being set on a thrust magnetic bearing, and the position of two sensor mounting hole is respectively positioned in the radius of thrust disc, one axial sensor is installed in a wherein sensor mounting hole and fills casting glue, axial sensor detects the displacement variable between thrust magnetic bearing and thrust disc.Present invention eliminates displacement sensor mounting bases, save space, the directly displacement variable between measurement thrust magnetic bearing and thrust disc, and detection position is more accurate, and suitable for the structure of two ends of rotor installation impeller, applicability is wider.
Description
Technical field:
The present invention relates to a kind of mounting structures of electromagnetic bearing axial sensor.
Background technique:
The axial sensor 4 of existing electromagnetic bearing is mounted on one end (such as Fig. 2) of rotor 1, detects the axial position of rotor
It sets, space occupied by the mounting means of this kind of structure is big, and when two ends of rotor all installs impeller, at this time the peace of this kind of structure
Dress mode cannot use.
Summary of the invention:
The present invention is to provide a kind of electromagnetic bearing axial sensor to solve the above-mentioned problems of the prior art
Mounting structure.
The technical solution adopted in the present invention has: a kind of mounting structure of electromagnetic bearing axial sensor, including rotor, pushes away
Power magnetic bearing, thrust disc and axial sensor, a thrust disc and two thrust magnetic bearings are sheathed on rotor, and thrust disc
It is placed between two thrust magnetic bearings, is set on a thrust magnetic bearing there are two sensor mounting hole, and two sensors installations
The position in hole is respectively positioned in the radius of thrust disc, installs an axial sensor simultaneously in a wherein sensor mounting hole
Casting glue is filled, axial sensor detects the displacement variable between thrust magnetic bearing and thrust disc.
Further, described two sensor mounting hole are arranged each along the axial direction of thrust magnetic bearing.
Further, a sensor mounting hole is through-hole, and a sensor mounting hole is blind hole.
The invention has the following beneficial effects: present invention eliminates displacement sensor mounting bases, space is saved, is directly surveyed
The displacement variable between thrust magnetic bearing and thrust disc is measured, detection position is more accurate, is suitable for two ends of rotor and installs impeller
Structure, applicability is wider.
Detailed description of the invention:
Fig. 1 is structure of the invention figure.
Fig. 2 is the installation diagram of axial sensor in the prior art of the invention.
Specific embodiment:
The present invention will be further described below with reference to the drawings.
Such as Fig. 1, a kind of mounting structure of electromagnetic bearing axial sensor of the present invention, including rotor 1, thrust magnetic bearing 2, push away
Power disk 3 and axial sensor 4, a thrust disc 3 and two thrust magnetic bearings 2 are sheathed on rotor 1, and thrust disc 3 is placed in
Between two thrust magnetic bearings 2, running clearance is formed between thrust magnetic bearing 2 and rotor 1.
Sensor mounting hole 21 there are two being set on thrust magnetic bearing 2 on the outside, and the position of two sensor mounting hole 21
It sets and is respectively positioned in the radius of thrust disc 3, an axial sensor 4 is installed in a wherein sensor mounting hole 21, and
Casting glue is filled in the sensor mounting hole 21, axial sensor 4 is fixed in the sensor mounting hole 21.Axial sensing
Device 4 detects the displacement variable between thrust magnetic bearing 2 and thrust disc 3.
Two sensor mounting hole 21 are arranged each along the axial direction of thrust magnetic bearing 2, a sensor mounting hole 21
For through-hole, a sensor mounting hole 21 is blind hole.
Axial sensor 4 is mounted on thrust magnetic bearing by the present invention, detects rotor axial position.Axial sensor 4 can
To be placed in any sensor mounting hole 21, axial sensor 4 by influenced can be with pushing away in thrust magnetic bearing magnetic field
Electric current in power magnetic bearing compensates.
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 mounting structure of electromagnetic bearing axial sensor, including rotor (1), thrust magnetic bearing (2), thrust disc (3) and
Axial sensor (4), a thrust disc (3) and two thrust magnetic bearings (2) are sheathed on rotor (1), and thrust disc (3) is set
Between two thrust magnetic bearings (2), it is characterised in that: sensor mounting hole there are two being set on a thrust magnetic bearing (2)
(21), and the position of two sensor mounting hole (21) is respectively positioned in the radius of thrust disc (3), wherein a sensor
One axial sensor (4) is installed in mounting hole (21) and fills casting glue, axial sensor (4) detects thrust magnetic bearing (2)
With the displacement variable between thrust disc (3).
2. the mounting structure of electromagnetic bearing axial sensor as described in claim 1, it is characterised in that: described two sensors
Mounting hole (21) is arranged each along the axial direction of thrust magnetic bearing (2).
3. the mounting structure of electromagnetic bearing axial sensor as described in claim 1, it is characterised in that: a sensor installation
Hole (21) is through-hole, and a sensor mounting hole (21) is blind hole.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811548451.3A CN109470192A (en) | 2018-12-18 | 2018-12-18 | A kind of mounting structure of electromagnetic bearing axial sensor |
| PCT/CN2019/105501 WO2020125084A1 (en) | 2018-12-18 | 2019-09-12 | Mounting structure for axial sensor of eletromagnetic bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811548451.3A CN109470192A (en) | 2018-12-18 | 2018-12-18 | A kind of mounting structure of electromagnetic bearing axial sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109470192A true CN109470192A (en) | 2019-03-15 |
Family
ID=65676175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811548451.3A Pending CN109470192A (en) | 2018-12-18 | 2018-12-18 | A kind of mounting structure of electromagnetic bearing axial sensor |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109470192A (en) |
| WO (1) | WO2020125084A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020125084A1 (en) * | 2018-12-18 | 2020-06-25 | 南京磁谷科技有限公司 | Mounting structure for axial sensor of eletromagnetic bearing |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1544878A (en) * | 2003-11-14 | 2004-11-10 | 清华大学 | Method for measuring axial displacement of electromagnet bearing rotor |
| EP1528356A2 (en) * | 2003-10-28 | 2005-05-04 | Liebherr-Werk Biberach GmbH | Apparatus for monitoring of large roller bearings |
| CN101398032A (en) * | 2008-10-30 | 2009-04-01 | 上海大学 | Axial magnetic thrust bearing |
| CN205593500U (en) * | 2015-12-14 | 2016-09-21 | 珠海格力节能环保制冷技术研究中心有限公司 | Axial displacement detection device and magnetic suspension bearing |
| CN106197245A (en) * | 2016-09-26 | 2016-12-07 | 南京磁谷科技有限公司 | A kind of magnetic bearing sensor mounting structure |
| CN108026932A (en) * | 2015-10-02 | 2018-05-11 | 大金应用美国股份有限公司 | Centrifugal compressor with surge Forecast |
| CN209372027U (en) * | 2018-12-18 | 2019-09-10 | 南京磁谷科技有限公司 | A kind of mounting structure of electromagnetic bearing axial sensor |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1307374C (en) * | 2005-05-09 | 2007-03-28 | 北京航空航天大学 | Passive type axial magnetic suspension bearing of possessing damping action |
| DE102008046357A1 (en) * | 2008-09-09 | 2010-03-11 | Schaeffler Kg | Sensor arrangement for determining a parameter for the wear of a rolling bearing and wind turbine |
| CN107387562A (en) * | 2017-08-29 | 2017-11-24 | 南京磁谷科技有限公司 | A kind of coaxial electromagnet structure of thrust magnetic bearing |
| CN107989896A (en) * | 2017-12-13 | 2018-05-04 | 中国人民解放军海军工程大学 | Axial and radial integration magnetic levitation bearing system |
| CN107968530B (en) * | 2017-12-28 | 2024-03-19 | 南京磁谷科技有限公司 | Integrated mounting structure of radial axial sensor of magnetic suspension motor |
| CN109470192A (en) * | 2018-12-18 | 2019-03-15 | 南京磁谷科技有限公司 | A kind of mounting structure of electromagnetic bearing axial sensor |
-
2018
- 2018-12-18 CN CN201811548451.3A patent/CN109470192A/en active Pending
-
2019
- 2019-09-12 WO PCT/CN2019/105501 patent/WO2020125084A1/en active Application Filing
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1528356A2 (en) * | 2003-10-28 | 2005-05-04 | Liebherr-Werk Biberach GmbH | Apparatus for monitoring of large roller bearings |
| CN1544878A (en) * | 2003-11-14 | 2004-11-10 | 清华大学 | Method for measuring axial displacement of electromagnet bearing rotor |
| CN101398032A (en) * | 2008-10-30 | 2009-04-01 | 上海大学 | Axial magnetic thrust bearing |
| CN108026932A (en) * | 2015-10-02 | 2018-05-11 | 大金应用美国股份有限公司 | Centrifugal compressor with surge Forecast |
| CN205593500U (en) * | 2015-12-14 | 2016-09-21 | 珠海格力节能环保制冷技术研究中心有限公司 | Axial displacement detection device and magnetic suspension bearing |
| CN106197245A (en) * | 2016-09-26 | 2016-12-07 | 南京磁谷科技有限公司 | A kind of magnetic bearing sensor mounting structure |
| CN209372027U (en) * | 2018-12-18 | 2019-09-10 | 南京磁谷科技有限公司 | A kind of mounting structure of electromagnetic bearing axial sensor |
Non-Patent Citations (1)
| Title |
|---|
| 谢振宇等: "磁悬浮转子轴向位置精度的实验研究" * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020125084A1 (en) * | 2018-12-18 | 2020-06-25 | 南京磁谷科技有限公司 | Mounting structure for axial sensor of eletromagnetic bearing |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020125084A1 (en) | 2020-06-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190315 |