CN105805042A - Structure for measuring upper and lower displacement quantities of rotor - Google Patents
Structure for measuring upper and lower displacement quantities of rotor Download PDFInfo
- Publication number
- CN105805042A CN105805042A CN201610294611.0A CN201610294611A CN105805042A CN 105805042 A CN105805042 A CN 105805042A CN 201610294611 A CN201610294611 A CN 201610294611A CN 105805042 A CN105805042 A CN 105805042A
- Authority
- CN
- China
- Prior art keywords
- magnetic bearing
- position sensor
- shaft position
- support
- axial displacement
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
- F04D29/056—Bearings
- F04D29/058—Bearings magnetic; electromagnetic
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/001—Testing thereof; Determination or simulation of flow characteristics; Stall or surge detection, e.g. condition monitoring
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
The invention discloses a structure for measuring upper and lower displacement quantities of a rotor. The structure comprises a shell, a stand and a magnetic bearing; and the shell is connected with the stand through a screw. The structure further comprises a lower bearing bracket, a magnetic bearing space ring, a measuring ring, a pure iron piece, an axial displacement sensor bracket, an axial displacement sensor, an axial displacement compensation sensor and an axial displacement sensor circuit board; the magnetic bearing space ring is fixedly connected with the stand through a screw; the magnetic bearing is positioned below the magnetic bearing space ring; the lower bearing bracket is fixedly connected to the stand; the magnetic bearing is pressed on the magnetic bearing space ring; the measuring ring and the pure iron piece are both arranged on the rotor; the axial displacement sensor bracket is fixedly connected to the magnetic bearing; the axial displacement sensor circuit board is fixed on the axial displacement sensor bracket; and the axial displacement sensor and the axial displacement compensation sensor are respectively mounted in the axial sensor bracket, and are correspondingly connected with the axial displacement sensor circuit board.
Description
Technical field:
The present invention relates to a kind of structure measuring rotor upper and lower displacement amount, it belongs to centrifugal fan technical field.
Background technology:
In existing centrifugal fan, in blower fan normal course of operation, magnetic bearing changes the size of electrical current by the displacement information that shaft position sensor feeds back, and normally suspends thus reaching to control rotor.The shaft position sensor of existing blower fan is installed on the bottom of rotor, and the shift value measured is otherwise varied with the actual displacement value at magnetic bearing position, has influence on the normal suspension of rotor.
Therefore, necessary prior art improves to solve the deficiency of prior art.
Summary of the invention:
The present invention provides a kind of structure measuring rotor upper and lower displacement amount to solve above-mentioned prior art Problems existing.
nullThe technical solution adopted in the present invention has: a kind of structure measuring rotor upper and lower displacement amount，Including casing、Support and magnetic bearing，Described casing is connected with support by screw，Rotor is suspended in support by the thrust of magnetic bearing，It also includes lower bracket、Magnetic bearing spacer ring、Measurement ring、Pure iron sheet、Shaft position sensor support、Shaft position sensor、Axial displacement compensates sensor and shaft position sensor circuit board，Described magnetic bearing spacer ring is connected by screw and support are fixing，Magnetic bearing is placed in below magnetic bearing spacer ring，Lower bracket is fixedly connected on support，And magnetic bearing is pressed on magnetic bearing spacer ring，Measurement ring and pure iron sheet are all located on rotor，Shaft position sensor support is fixedly connected on magnetic bearing，Shaft position sensor circuit board is fixed on shaft position sensor support，Shaft position sensor and axial displacement compensate sensor and are separately mounted in axial sensor support，Shaft position sensor compensates sensor connection corresponding to shaft position sensor circuit board respectively with axial displacement.
Further, described measurement ring and pure iron sheet are fixed on rotor each through hot jacket.
Further, described shaft position sensor support is connected on magnetic bearing by hot jacket is fixing.
There is advantages that in rotor normal course of operation of the present invention, shaft position sensor and axial displacement compensate sensor feedback metrical information, and feedback current information is to magnetic bearings control center, reach to control the purpose that rotor normally suspends by the size of current changed within magnetic bearing, the simple in construction of the present invention, the shift value of the magnetic bearing measured is accurate.
Accompanying drawing illustrates:
Fig. 1 is the structure chart of the present invention.
Fig. 2 is the partial enlargement structure chart of the present invention.
Wherein:
1-rotor；2-casing；3-support；6-lower bracket；7-magnetic bearing；8-magnetic bearing spacer ring；9-measurement ring；10-pure iron sheet；11-shaft position sensor support；12-shaft position sensor；13-axial displacement compensates sensor；14-shaft position sensor circuit board.
Detailed description of the invention:
Below in conjunction with accompanying drawing, the present invention is further illustrated.
nullRefer to shown in Fig. 1 and Fig. 2，The present invention measures the structure of rotor upper and lower displacement amount，Including casing 2、Support 3 and magnetic bearing 7，Casing 2 is connected with support 3 by screw，Rotor 1 is suspended in support 3 by the thrust of magnetic bearing 7，The structure of the present invention is additionally provided with lower bracket 6、Magnetic bearing spacer ring 8、Measurement ring 9、Pure iron sheet 10、Shaft position sensor support 11、Shaft position sensor 12、Axial displacement compensates sensor 13 and shaft position sensor circuit board 14，Magnetic bearing spacer ring 8 is fixedly connected on support 3 by screw，Magnetic bearing 7 is placed in the lower section of magnetic bearing spacer ring 8，Lower bracket 6 is connected by screw is fixing with support 3，Magnetic bearing 7 is pressed on magnetic bearing spacer ring 8 by lower bracket 6，Measurement ring 9 and pure iron sheet 10 are fixed on rotor 1 each through hot jacket，Shaft position sensor support 11 is fixed on magnetic bearing 7 by hot jacket，Shaft position sensor circuit board 14 is fixed by screws on shaft position sensor support 11，Shaft position sensor 12 and axial displacement compensate sensor 13 and are separately mounted in axial sensor support 11，Shaft position sensor 12 and axial displacement compensate sensor 13 connection corresponding to shaft position sensor circuit board 14 respectively.
In rotor 1 normal course of operation, shaft position sensor 12 and axial displacement compensate sensor 13 and feed back metrical information, and feedback current information is to magnetic bearings control center, reach to control the purpose that rotor 1 normally suspends by the size of current changed within magnetic bearing 7, the simple in construction of the present invention, the shift value of the magnetic bearing measured is accurate.
The above is only the preferred embodiment of the present invention, it is noted that for those skilled in the art, can also make some improvement under the premise without departing from the principles of the invention, and these improvement also should be regarded as protection scope of the present invention.
Claims (3)
- null1. the structure measuring rotor upper and lower displacement amount，Including casing (2)、Support (3) and magnetic bearing (7)，Described casing (2) is connected with support (3) by screw，Rotor (1) is suspended in support (3) by the thrust of magnetic bearing (7)，It is characterized in that: also include lower bracket (6)、Magnetic bearing spacer ring (8)、Measurement ring (9)、Pure iron sheet (10)、Shaft position sensor support (11)、Shaft position sensor (12)、Axial displacement compensates sensor (13) and shaft position sensor circuit board (14)，Described magnetic bearing spacer ring (8) is connected by screw and support (3) are fixing，Magnetic bearing (7) is placed in magnetic bearing spacer ring (8) lower section，Lower bracket (6) is fixedly connected on support (3)，And magnetic bearing (7) is pressed on magnetic bearing spacer ring (8)，Measurement ring (9) and pure iron sheet (10) are all located on rotor (1)，Shaft position sensor support (11) is fixedly connected on magnetic bearing (7)，Shaft position sensor circuit board (14) is fixed on shaft position sensor support (11)，Shaft position sensor (12) and axial displacement compensate sensor (13) and are separately mounted in axial sensor support (11)，Shaft position sensor (12) and axial displacement compensate sensor (13) connection corresponding to shaft position sensor circuit board (14) respectively.
- 2. the structure measuring rotor upper and lower displacement amount as claimed in claim 1, it is characterised in that: described measurement ring (9) and pure iron sheet (10) are fixed on rotor (1) each through hot jacket.
- 3. the structure measuring rotor upper and lower displacement amount as claimed in claim 2, it is characterised in that: described shaft position sensor support (11) is connected on magnetic bearing (7) by hot jacket is fixing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610294611.0A CN105805042A (en) | 2016-05-05 | 2016-05-05 | Structure for measuring upper and lower displacement quantities of rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610294611.0A CN105805042A (en) | 2016-05-05 | 2016-05-05 | Structure for measuring upper and lower displacement quantities of rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105805042A true CN105805042A (en) | 2016-07-27 |
Family
ID=56456400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610294611.0A Pending CN105805042A (en) | 2016-05-05 | 2016-05-05 | Structure for measuring upper and lower displacement quantities of rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105805042A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106500749A (en) * | 2016-12-19 | 2017-03-15 | 南京磁谷科技有限公司 | A kind of magnetic suspension motor measures the axial sensor supporting structure of rotor |
| CN106602781A (en) * | 2016-12-19 | 2017-04-26 | 南京磁谷科技有限公司 | Auxiliary bearing structure for magnetic levitation motor |
| CN107742995A (en) * | 2017-12-04 | 2018-02-27 | 南京磁谷科技有限公司 | A kind of mounting structure of the axial detection piece of magnetic suspension motor rotor |
| CN109667777A (en) * | 2017-06-02 | 2019-04-23 | 东莞市杰伦塑胶灯饰有限公司 | A kind of control unit for magnetic suspension scavenger fan rotational speed regulation and rebalancing |
| CN113833685A (en) * | 2021-11-26 | 2021-12-24 | 北京中科科仪股份有限公司 | Molecular pump spindle collecting amount measuring device and measuring method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11324970A (en) * | 1998-05-13 | 1999-11-26 | Ebara Corp | Canned motor pump |
| JP2009293403A (en) * | 2008-06-02 | 2009-12-17 | Jtekt Corp | Air compressor |
| JP2010144537A (en) * | 2008-12-16 | 2010-07-01 | Jtekt Corp | Compressor for fuel cell |
| KR20100135092A (en) * | 2009-06-16 | 2010-12-24 | 현대위아 주식회사 | Hybrid thrust bearing |
| CN102877897A (en) * | 2011-07-15 | 2013-01-16 | 阿特拉斯·科普柯能源有限公司 | Turbo machine with magnetic bearings |
| CN103307103A (en) * | 2013-05-08 | 2013-09-18 | 南京航空航天大学 | Combined support device of magnetic bearing rotor system |
| CN104863869A (en) * | 2014-02-21 | 2015-08-26 | Skf磁性机械技术公司 | A Modular Motor And Magnetic Bearing Assembly, And A Manufacturing Method Therefor |
| CN205592183U (en) * | 2016-05-05 | 2016-09-21 | 南京磁谷科技有限公司 | Measure rotor structure of displacement volume from top to bottom |
-
2016
- 2016-05-05 CN CN201610294611.0A patent/CN105805042A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11324970A (en) * | 1998-05-13 | 1999-11-26 | Ebara Corp | Canned motor pump |
| JP2009293403A (en) * | 2008-06-02 | 2009-12-17 | Jtekt Corp | Air compressor |
| JP2010144537A (en) * | 2008-12-16 | 2010-07-01 | Jtekt Corp | Compressor for fuel cell |
| KR20100135092A (en) * | 2009-06-16 | 2010-12-24 | 현대위아 주식회사 | Hybrid thrust bearing |
| CN102877897A (en) * | 2011-07-15 | 2013-01-16 | 阿特拉斯·科普柯能源有限公司 | Turbo machine with magnetic bearings |
| CN103307103A (en) * | 2013-05-08 | 2013-09-18 | 南京航空航天大学 | Combined support device of magnetic bearing rotor system |
| CN104863869A (en) * | 2014-02-21 | 2015-08-26 | Skf磁性机械技术公司 | A Modular Motor And Magnetic Bearing Assembly, And A Manufacturing Method Therefor |
| CN205592183U (en) * | 2016-05-05 | 2016-09-21 | 南京磁谷科技有限公司 | Measure rotor structure of displacement volume from top to bottom |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106500749A (en) * | 2016-12-19 | 2017-03-15 | 南京磁谷科技有限公司 | A kind of magnetic suspension motor measures the axial sensor supporting structure of rotor |
| CN106602781A (en) * | 2016-12-19 | 2017-04-26 | 南京磁谷科技有限公司 | Auxiliary bearing structure for magnetic levitation motor |
| CN109667777A (en) * | 2017-06-02 | 2019-04-23 | 东莞市杰伦塑胶灯饰有限公司 | A kind of control unit for magnetic suspension scavenger fan rotational speed regulation and rebalancing |
| CN109667777B (en) * | 2017-06-02 | 2020-11-06 | 东莞市杰伦塑胶灯饰有限公司 | Control part for adjusting and rebalancing rotating speed of magnetic suspension ventilation fan |
| CN107742995A (en) * | 2017-12-04 | 2018-02-27 | 南京磁谷科技有限公司 | A kind of mounting structure of the axial detection piece of magnetic suspension motor rotor |
| CN107742995B (en) * | 2017-12-04 | 2023-12-26 | 南京磁谷科技股份有限公司 | Mounting structure of axial detection piece of magnetic suspension motor rotor |
| CN113833685A (en) * | 2021-11-26 | 2021-12-24 | 北京中科科仪股份有限公司 | Molecular pump spindle collecting amount measuring device and measuring method |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160727 |