CN107968530B - Integrated mounting structure of radial axial sensor of magnetic suspension motor - Google Patents
Integrated mounting structure of radial axial sensor of magnetic suspension motor Download PDFInfo
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- CN107968530B CN107968530B CN201711453263.8A CN201711453263A CN107968530B CN 107968530 B CN107968530 B CN 107968530B CN 201711453263 A CN201711453263 A CN 201711453263A CN 107968530 B CN107968530 B CN 107968530B
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- 239000000725 suspension Substances 0.000 title claims abstract description 11
- 238000001514 detection method Methods 0.000 claims abstract description 52
- 238000005339 levitation Methods 0.000 claims 2
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 5
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
Abstract
The invention discloses an integrated mounting structure of a radial and axial sensor of a magnetic suspension motor, wherein a sensor bracket is fixed on a base through screws, a detection block is arranged in the sensor bracket, the detection block is sleeved on a bearing end cover, and the detection block is in interference fit with the bearing end cover; a radial detection gap is formed between the outer circumferential wall of the detection block and the inner circumferential wall of the sensor bracket, and an axial detection gap is formed between the bottom surface of the detection block and the bottom surface of the inner wall of the sensor bracket; the radial sensor is arranged on the side wall of the sensor support and detects the dimensional change of the radial detection gap, the axial sensor and the axial compensation sensor are arranged on the bottom wall of the sensor support, and the axial sensor detects the dimensional change of the axial detection gap. The radial sensor and the axial sensor are arranged outside the machine base, so that the maintenance and the replacement are convenient.
Description
Technical field:
the invention relates to an integrated installation structure of a radial and axial sensor of a magnetic suspension motor.
The background technology is as follows:
the radial and axial sensors are important detection elements in the magnetic suspension motor, and the motor cannot work normally when the radial and axial sensors work in a fault state. The radial sensor in the existing magnetic suspension motor is arranged inside the motor, the axial sensor is arranged at the tail end of the rotor, the sensor is a sensitive element, and the magnetic suspension motor is in an internal high-temperature state for a long time under the existing structure, is easy to break down and is inconvenient to maintain.
The invention comprises the following steps:
the invention provides an integrated installation structure of a radial and axial sensor of a magnetic suspension motor, which aims to solve the problems in the prior art.
The invention adopts the technical scheme that: the utility model provides a radial axial sensor integral type mounting structure of magnetic suspension motor, includes rotor, frame, bearing, axle head nut and bearing end cover, the rotor passes through the bearing rotation to be supported in the frame, and the bearing end cover is located on the rotor, and the one end of bearing end cover is contradicted on the inner race of bearing, and with the bearing axial positioning in the frame, axle head nut threaded connection is at the terminal of rotor, and axle head nut with the bearing end cover axial positioning on the rotor, still include sensor support, radial sensor, axial compensation sensor and detection piece, the sensor support passes through the fix with screw on the frame, the detection piece is located in the sensor support, and the detection piece cover is located on the bearing end cover, interference fit between detection piece and the bearing end cover; a radial detection gap is formed between the outer circumferential wall of the detection block and the inner circumferential wall of the sensor bracket, and an axial detection gap is formed between the bottom surface of the detection block and the bottom surface of the inner wall of the sensor bracket; the radial sensor is arranged on the side wall of the sensor support and detects the dimensional change of the radial detection gap, the axial sensor and the axial compensation sensor are arranged on the bottom wall of the sensor support, and the axial sensor detects the dimensional change of the axial detection gap.
Further, the outer wall of the bearing end cover is provided with a mounting boss, the detection block is sleeved on the mounting boss, and interference fit is achieved between the detection block and the mounting boss.
Further, a first mounting hole is formed in the side wall of the sensor support, a second mounting hole and a third mounting hole are formed in the bottom wall of the sensor support, the first mounting hole and the second mounting hole are respectively corresponding to and communicated with the radial detection gap and the axial detection gap, the radial sensor is mounted in the first mounting hole, and the axial sensor and the axial compensation sensor are respectively mounted in the second mounting hole and the third mounting hole.
The invention has the following beneficial effects: the radial sensor and the axial sensor are arranged outside the machine base, so that the maintenance and the replacement are convenient.
Description of the drawings:
fig. 1 is a structural diagram of the present invention.
Fig. 2 is an enlarged view of a portion of the present invention.
Fig. 3 is a structural view of a bearing end cap according to the present invention.
The specific embodiment is as follows:
the invention is further described below with reference to the accompanying drawings.
As shown in fig. 1 to 3, the invention discloses an integrated installation structure of a radial and axial sensor of a magnetic suspension motor, which comprises a rotor 1, a machine base 2, a bearing 4, a sensor bracket 5, a radial sensor 6, an axial sensor 7, an axial compensation sensor 8, a shaft end nut 9, a bearing end cover 10 and a detection block 11, wherein the rotor 1 is rotatably supported in the machine base 2 through the bearing 4, the bearing end cover 10 is sleeved on the rotor 1, one end of the bearing end cover 10 is abutted against an inner ring of the bearing 4, and the bearing 4 is axially positioned in the machine base 2. The shaft end nut 9 is screwed on the end of the rotor 1, and the shaft end nut 9 abuts against the bearing end cover 10, and the shaft end nut 9 axially positions the bearing end cover 10 on the rotor 1.
The sensor support 5 is fixed on the base 2 through screws, the detection block 11 is arranged in the sensor support 5, the detection block 11 is sleeved on the bearing end cover 10, and interference fit is arranged between the detection block 11 and the bearing end cover 10. A radial detection gap 100 is formed between the outer circumferential wall of the detection block 11 and the inner circumferential wall of the sensor holder 5, and an axial detection gap 200 is formed between the bottom surface of the detection block 11 and the inner wall bottom surface of the sensor holder 5. The radial sensor 6 is provided on a side wall of the sensor holder 5 and detects a change in the size of the radial detection gap 100. The axial sensor 7 and the axial compensation sensor 8 are arranged on the bottom wall of the sensor bracket 5, and the axial sensor 7 is right opposite to the lower part of the detection block 11 and is used for detecting the dimensional change of the axial detection gap 200. The axial compensation sensor 8 is offset below the detection block 11.
The outer wall of the bearing end cover 10 is provided with a mounting boss 101, the detection block 11 is sleeved on the mounting boss 101, and the two are in interference fit.
The side wall of the sensor bracket 5 is provided with a first mounting hole, the bottom wall is provided with a second mounting hole and a third mounting hole, the first mounting hole and the second mounting hole are respectively communicated with the radial detection gap 100 and the axial detection gap 200 correspondingly, the radial sensor 6 is arranged in the first mounting hole, and the axial sensor 7 and the axial compensation sensor 8 are respectively arranged in the second mounting hole and the third mounting hole.
The radial sensor 6 and the axial sensor 7 are arranged outside the machine base 2, so that the maintenance and the replacement are convenient. In addition, the limit of the sensor installation clearance is reduced at the tail end of the rotor 1, so that the installation is more convenient.
The foregoing is merely a preferred embodiment of the invention, and it should be noted that modifications could be made by those skilled in the art without departing from the principles of the invention, which modifications would also be considered to be within the scope of the invention.
Claims (3)
1. The utility model provides a radial axial sensor integral type mounting structure of magnetic suspension motor, includes rotor (1), frame (2), bearing (4), axle head nut (9) and bearing cap (10), rotor (1) rotates through bearing (4) and supports in frame (2), and on rotor (1) was located to bearing cap (10) cover, and the one end of bearing cap (10) is contradicted on the inner circle of bearing (4) to with bearing (4) axial location in frame (2), end at rotor (1) end is connected to axle head nut (9) screw thread, and axle head nut (9) are with bearing cap (10) axial location on rotor (1), its characterized in that: the sensor comprises a base (2), a sensor support (5), a radial sensor (6), an axial sensor (7), an axial compensation sensor (8) and a detection block (11), wherein the sensor support (5) is fixed on the base (2) through screws, the detection block (11) is arranged in the sensor support (5), the detection block (11) is sleeved on a bearing end cover (10), and interference fit is realized between the detection block (11) and the bearing end cover (10); a radial detection gap (100) is formed between the outer circumferential wall of the detection block (11) and the inner circumferential wall of the sensor bracket (5), and an axial detection gap (200) is formed between the bottom surface of the detection block (11) and the bottom surface of the inner wall of the sensor bracket (5); the radial sensor (6) is arranged on the side wall of the sensor support (5) and detects the dimensional change of the radial detection gap (100), the axial sensor (7) and the axial compensation sensor (8) are arranged on the bottom wall of the sensor support (5), and the axial sensor (7) detects the dimensional change of the axial detection gap (200).
2. A magnetic levitation motor radial-axial sensor integrated mounting structure as defined in claim 1, wherein: the outer wall of the bearing end cover (10) is provided with a mounting boss (101), and the detection block (11) is sleeved on the mounting boss (101) and is in interference fit with the mounting boss.
3. A magnetic levitation motor radial-axial sensor integrated mounting structure as defined in claim 1, wherein: the sensor support is characterized in that a first mounting hole is formed in the side wall of the sensor support (5), a second mounting hole and a third mounting hole are formed in the bottom wall, the first mounting hole and the second mounting hole are respectively corresponding to and communicated with the radial detection gap (100) and the axial detection gap (200), the radial sensor (6) is mounted in the first mounting hole, and the axial sensor (7) and the axial compensation sensor (8) are respectively mounted in the second mounting hole and the third mounting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711453263.8A CN107968530B (en) | 2017-12-28 | 2017-12-28 | Integrated mounting structure of radial axial sensor of magnetic suspension motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711453263.8A CN107968530B (en) | 2017-12-28 | 2017-12-28 | Integrated mounting structure of radial axial sensor of magnetic suspension motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107968530A CN107968530A (en) | 2018-04-27 |
| CN107968530B true CN107968530B (en) | 2024-03-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711453263.8A Active CN107968530B (en) | 2017-12-28 | 2017-12-28 | Integrated mounting structure of radial axial sensor of magnetic suspension motor |
Country Status (1)
| Country | Link |
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| CN (1) | CN107968530B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109505875A (en) * | 2018-12-18 | 2019-03-22 | 南京磁谷科技有限公司 | Radial direction and axial combination sensor for magnetic suspension bearing |
| CN113432565B (en) * | 2021-07-26 | 2022-03-15 | 珠海格力电器股份有限公司 | Magnetic suspension bearing axial displacement detection device, method and system and control system thereof |
| CN113483788A (en) * | 2021-07-29 | 2021-10-08 | 珠海格力电器股份有限公司 | Code wheel assembly, encoder and manufacturing method of code wheel assembly |
| CN114152233B (en) * | 2021-12-09 | 2023-11-03 | 坎德拉(深圳)新能源科技有限公司 | Radial displacement sensor positioning bracket for flywheel energy storage device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005233385A (en) * | 2004-02-23 | 2005-09-02 | Koyo Seiko Co Ltd | Magnetic bearing device |
| CN1987367A (en) * | 2006-12-14 | 2007-06-27 | 北京航空航天大学 | Integrated five freedom electric eddy sensor |
| CN201788086U (en) * | 2009-12-31 | 2011-04-06 | 南京磁谷科技有限公司 | Five degree-of-freedom magnetic levitation bearing mechanical test stand |
| CN202273889U (en) * | 2011-10-13 | 2012-06-13 | 山东科技大学 | Magnetic levitation flywheel centrifugal blower |
| CN202420455U (en) * | 2012-01-15 | 2012-09-05 | 洛阳轴研科技股份有限公司 | Run-out measurer for bearing outer ring |
| CN104092411A (en) * | 2014-07-07 | 2014-10-08 | 扬州大学 | Arc stator winding magnetic suspension bearing drive motor |
| WO2015120093A1 (en) * | 2014-02-07 | 2015-08-13 | Nidec Motor Corporation | Internal rotor sensor having adjustable sensor carrier |
| CN207719985U (en) * | 2017-12-28 | 2018-08-10 | 南京磁谷科技有限公司 | A kind of magnetic suspension motor radial-axial sensor integral type mounting structure |
-
2017
- 2017-12-28 CN CN201711453263.8A patent/CN107968530B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005233385A (en) * | 2004-02-23 | 2005-09-02 | Koyo Seiko Co Ltd | Magnetic bearing device |
| CN1987367A (en) * | 2006-12-14 | 2007-06-27 | 北京航空航天大学 | Integrated five freedom electric eddy sensor |
| CN201788086U (en) * | 2009-12-31 | 2011-04-06 | 南京磁谷科技有限公司 | Five degree-of-freedom magnetic levitation bearing mechanical test stand |
| CN202273889U (en) * | 2011-10-13 | 2012-06-13 | 山东科技大学 | Magnetic levitation flywheel centrifugal blower |
| CN202420455U (en) * | 2012-01-15 | 2012-09-05 | 洛阳轴研科技股份有限公司 | Run-out measurer for bearing outer ring |
| WO2015120093A1 (en) * | 2014-02-07 | 2015-08-13 | Nidec Motor Corporation | Internal rotor sensor having adjustable sensor carrier |
| CN104092411A (en) * | 2014-07-07 | 2014-10-08 | 扬州大学 | Arc stator winding magnetic suspension bearing drive motor |
| CN207719985U (en) * | 2017-12-28 | 2018-08-10 | 南京磁谷科技有限公司 | A kind of magnetic suspension motor radial-axial sensor integral type mounting structure |
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| CN107968530A (en) | 2018-04-27 |
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Address after: 211102 No. 100 Jiuzhu Road, Jiangning Development Zone, Nanjing, Jiangsu Province Patentee after: Nanjing Cigu Technology Co.,Ltd. Country or region after: Zhong Guo Address before: 211102 No. 100 Jiuzhu Road, Jiangning Development Zone, Nanjing, Jiangsu Province Patentee before: NANJING CIGU Ltd.,Corp. Country or region before: Zhong Guo |