CN109681749B - Rotor position detection installation assembly and magnetic suspension bearing - Google Patents
Rotor position detection installation assembly and magnetic suspension bearing Download PDFInfo
- Publication number
- CN109681749B CN109681749B CN201811557311.2A CN201811557311A CN109681749B CN 109681749 B CN109681749 B CN 109681749B CN 201811557311 A CN201811557311 A CN 201811557311A CN 109681749 B CN109681749 B CN 109681749B
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- Prior art keywords
- sensor
- slide block
- sensor mounting
- rotor position
- inclined surface
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- 239000000725 suspension Substances 0.000 title claims abstract description 20
- 238000001514 detection method Methods 0.000 title claims abstract description 19
- 238000009434 installation Methods 0.000 title abstract description 13
- 238000012360 testing method Methods 0.000 claims abstract description 18
- 239000000178 monomer Substances 0.000 claims 1
- 238000012423 maintenance Methods 0.000 description 5
- 241000446313 Lamella Species 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M13/00—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles
- F16M13/02—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/18—Heads with mechanism for moving the apparatus relatively to the stand
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/0002—Arrangements for supporting, fixing or guiding the measuring instrument or the object to be measured
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/0002—Arrangements for supporting, fixing or guiding the measuring instrument or the object to be measured
- G01B5/0004—Supports
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/003—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring position, not involving coordinate determination
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The invention discloses a rotor position detection mounting assembly which comprises a rotary testing sleeve and a plurality of sensor mounting brackets, wherein a radial position sensor and an axial position sensor are fixedly mounted on each sensor mounting bracket through bolts; a position adjusting slide block is arranged between two adjacent sensor mounting brackets, the position adjusting slide block comprises a slide block with an inclined surface and an adjusting screw connected with the slide block with the inclined surface through threads, and a fixed block is arranged between the slide block with the inclined surface and the adjusting screw; the left side surface and the right side surface of the sensor mounting bracket respectively comprise a slope structure matched with the inclined surface and a plane parallel to the side wall of the fixed block; also disclosed is a magnetic suspension bearing; compared with the prior art, the rotor position detection device has the advantages of avoiding a large amount of field adjustment work, having simple rotor position detection and installation components, good detection consistency, compact structure and being easy to install, dismantle and maintain.
Description
Technical Field
The invention belongs to the technical field of position detection, and particularly relates to a rotor position detection mounting assembly of a rotary machine and a magnetic suspension bearing using the rotor position detection mounting assembly.
Background
In various rotary machine workplaces, due to work needs, states of some rotary parts are detected and monitored for online control or fault diagnosis, wherein the more common monitoring is monitoring of the position of the axis of a rotary shaft. The position installation precision influences the detection precision, which is more prominent in the rotor position detection of the magnetic suspension bearing with higher precision requirement.
The prior art rotor position mounting device is generally implemented by adopting a field adjustment mounting mode: on one hand, the field adjustment work is complex, the workload is large, the field adjustment time is long, and the field production time is also occupied; secondly, the adjustment is influenced by human factors, the consistency of products cannot be realized, and the product performance is influenced; in the third aspect, the position is reserved for manual adjustment, the size of the position detection and installation assembly is large, the useless length of the rotating shaft is increased, the shaft system is lengthened, and the dynamic vibration of the rotor is also influenced; in the fourth aspect, replacement and maintenance time is long once the position sensing device is damaged and needs to be replaced.
Disclosure of Invention
To overcome the above-described deficiencies of the prior art, the present invention provides a rotor position sensing mounting assembly.
The technical scheme adopted by the invention for solving the technical problems is as follows: a rotor position detection mounting assembly comprises a rotary testing sleeve and a plurality of same sensor mounting brackets, wherein the rotary testing sleeve is mounted on a rotor shaft in an interference connection mode, the same sensor mounting brackets are arranged on the rotary testing sleeve, the sensor mounting brackets are spliced into an annular structure with an outer circle coaxial with the rotary testing sleeve and sleeved on the rotary testing sleeve, and a radial position sensor and an axial position sensor are fixedly mounted on the sensor mounting brackets through bolts; a position adjusting slide block is arranged between two adjacent sensor mounting brackets, the position adjusting slide block comprises a slide block with an inclined surface and an adjusting screw connected with the slide block with the inclined surface through threads, and a fixed block is arranged between the slide block with the inclined surface and the adjusting screw; the sensor installing support left and right sides all contain one with the slope structure of inclined plane adaptation and the plane parallel with the fixed block lateral wall.
The rotor position detecting and mounting assembly is characterized in that the rotating test sleeve is composed of a cylinder with a smooth surface and an annular flange which is arranged at the end part of the cylinder and provided with a smooth surface excircle. The cylinder is used for detecting the radial position of the rotor by the radial position sensor, and the annular flange is used for detecting the axial position of the rotor by the axial position sensor.
According to the rotor position detection mounting assembly, the radial position sensor and the axial position sensor are respectively mounted on the two adjacent sensor mounting brackets.
The four sensor mounting brackets of the rotor position detection mounting assembly are provided.
The invention also provides a magnetic suspension bearing adopting the rotor position detection and installation assembly, which comprises a bearing seat, a radial magnetic suspension bearing and an axial magnetic suspension bearing which are arranged in the bearing seat, a rotor position detection and installation assembly and an eddy current sensor, wherein the bearing seat is provided with a plurality of adjusting holes positioned above the sensor installation support and a dismantling window close to the adjusting holes, and the dismantling window is internally provided with a backing ring consisting of a plurality of single bodies with split structures.
The invention has the following beneficial effects: the sensor mounting bracket is divided into a plurality of petals, the edge shape of each petal is consistent with the shape of the position adjusting sliding block, a slope is formed, the side wall of the fixing block is abutted against the side wall of the sensor mounting bracket, the distance between the petals of the sensor mounting bracket can be adjusted by adjusting the position adjusting sliding block, and therefore the position of the sensor mounting bracket is adjusted, and the positions of the radial position sensor and the axial position sensor are adjusted. Aiming at the requirements of the existing rotary machine on the aspects of consistency, compactness, easy maintenance and the like, the invention simplifies the installation steps and reduces the workload of installation and maintenance by designing the compact, consistent and easily-assembled and disassembled installation assembly.
Drawings
FIG. 1 is a perspective exploded view of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is an exploded view of the position adjustment slider of the present invention;
FIG. 4 is a cross-sectional view of a magnetic suspension bearing to which the position sensing mounting assembly of the present invention is applied;
FIG. 5 is a perspective view of a magnetic suspension bearing to which the position sensing mounting assembly of the present invention is applied.
The figures are numbered: the device comprises a rotary testing sleeve, 2 radial position sensors, 3 sensor mounting supports, 4 position adjusting sliders, 5 axial position sensors, 6 adjusting screws, 7 fixing blocks, 8 sliders with inclined planes, 9 adjusting holes, 10 detaching windows, 11 radial magnetic suspension bearings, 12 bearing seats, 13 rotor position detecting and mounting assemblies, 14 backing rings and 15 axial magnetic suspension bearings.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1, a rotor position detecting and mounting assembly is composed of a rotary testing sleeve 1, a radial position sensor 2, a sensor mounting bracket 3, a position adjusting slider 4, an axial position sensor 5 and the like, wherein the radial position sensor 2 and the axial position sensor 5 are mounted on the sensor mounting bracket 3 through bolt fastening. Sensor installing support 3 divides into a plurality of lamellas, and every lamella edge shape is unanimous with position control slider 4 shape to form slope form, the lateral wall of fixed block 7 supports with sensor installing support 3's lateral wall and leans on, and the distance of each lamella of position control slider 4 adjustable sensor installing support 3, thereby adjusts the position of installing support.
As shown in fig. 1, the rotating test sleeve 1 is composed of a cylinder with a smooth surface and an annular flange with a smooth surface and an outer circle arranged at the end of the cylinder, and the annular flange is arranged at the end of the cylinder and has a smooth surface, so that the rotating test sleeve 1 can be used for detecting the axial position of the rotor by the axial position sensor 5, and the outer circle of the rotating test sleeve 1 is smooth and clean and is used for detecting the radial position of the rotor by the radial position sensor 2.
As shown in fig. 2, the outer circular surface of the sensor mounting bracket 3 is precisely machined to be coaxial with the inner circular surface, before leaving the factory, a tool or a support is adopted to align the outer circle of each segment of the sensor mounting bracket 3 in the tool or the support, the radial position sensor 2 and the axial position sensor 5 are adjusted to meet the precision requirements of radial coaxiality and axial distance, the radial position sensor 2 and the axial position sensor 5 are fastened, and after adjustment, even if the segment of the sensor mounting bracket 3 is moved out, each segment sensor also meets the characteristics that the coaxiality precision and the axial position are equal, and the test after installation has consistency.
As shown in fig. 3, the position adjusting slider 4 includes a slider 8 with an inclined surface and an adjusting screw 6 connected to the slider 8 with an inclined surface through a thread, a fixing block 7 is disposed between the slider 8 with an inclined surface and the adjusting screw 6, the slider 8 with an inclined surface is provided with a thread, the fixing block 7 is provided with a through hole, when the adjusting screw 6 is rotated, the relative position of the slider 8 with an inclined surface and the fixing block 7 can be adjusted, so as to adjust the distance between the segments of the sensor mounting bracket 3 in fig. 2. When the sensor mounting bracket is dismounted, the split of the sensor mounting bracket 3 needs to be loosened, and when the sensor mounting bracket is mounted, the split of the sensor mounting bracket 3 needs to be tightened.
Because the adjustment is completed before leaving the factory, the excircle of the sensor mounting bracket 3 is coaxial with the radial position sensor 2, and the axial positions of the split parts are consistent, after the installation is completed, the rotary adjusting screw 6 is tightened only through the adjusting hole 9 on site, so that the excircle of the sensor mounting bracket 3 is tightly matched with the bearing seat 12, the on-site adjustment is completed, and the on-site maintenance workload is greatly reduced.
As shown in fig. 4, the magnetic suspension bearing is composed of a radial magnetic suspension bearing 11, a bearing seat 12, a rotor position detecting and mounting assembly 13, a backing ring 14, an axial magnetic suspension bearing 15, etc., in this example, an eddy current sensor is used as a sensor of the rotor position detecting and mounting assembly 13, once damaged, the replacement is complicated, the radial magnetic suspension bearing 11 and the axial magnetic suspension bearing 15, etc., need to be removed from the general structure, and the maintenance workload is large, in this example, the bearing seat 12 is provided with a removing window 10 and an adjusting hole 9 (as shown in fig. 5), the backing ring 14 is in a split structure, and is easy to be taken out from the removing window 10, after the backing block 14 is completely taken out, the sensor mounting bracket 3 is loosened through the adjusting hole 9, so that the split is taken out, and.
The present invention is not limited to the above-mentioned preferred embodiments, and any person skilled in the art can derive other variants and modifications within the scope of the present invention, however, any variation in shape or structure is within the scope of protection of the present invention, and any technical solution similar or equivalent to the present application is within the scope of protection of the present invention.
Claims (5)
1. A rotor position detection mounting assembly characterized in that: the device comprises a rotary testing sleeve (1) and a plurality of sensor mounting brackets (3) arranged on the rotary testing sleeve (1), wherein the sensor mounting brackets (3) are spliced into an annular structure with an outer circle coaxial with the rotary testing sleeve (1) and sleeved on the rotary testing sleeve (1), and a radial position sensor (2) and an axial position sensor (5) are mounted on the sensor mounting brackets (3) through bolts; a position adjusting slide block (4) is arranged between two adjacent sensor mounting brackets (3), the position adjusting slide block (4) comprises a slide block (8) with an inclined surface and an adjusting screw (6) connected with the slide block (8) with the inclined surface through a thread, and a fixed block (7) is arranged between the slide block (8) with the inclined surface and the adjusting screw (6); the left side and the right side of the sensor mounting bracket (3) both comprise a slope structure matched with the inclined plane and a plane parallel to the side wall of the fixing block (7).
2. A rotor position sensing mounting assembly according to claim 1, wherein the rotating test sleeve (1) comprises a cylinder with a smooth surface and a ring with a smooth outer circumference at the end of the cylinder.
3. A rotor position sensing mounting assembly according to claim 1, wherein two adjacent sensor mounting brackets (3) have a radial position sensor (2) and an axial position sensor (5) mounted thereon, respectively.
4. A rotor position sensing mounting assembly according to claim 1, 2 or 3, wherein there are four sensor mounting brackets (3).
5. A magnetic suspension bearing comprises a bearing seat (12), a radial magnetic suspension bearing (11) and an axial magnetic suspension bearing (15) which are arranged in the bearing seat (12), and is characterized by further comprising a rotor position detection mounting assembly (13) and an eddy current sensor according to claim 1, wherein the bearing seat (12) is provided with a plurality of adjusting holes (9) which are positioned above a sensor mounting support (3) and a dismantling window (10) which is close to the adjusting holes (9), and the dismantling window (10) is internally provided with a backing ring (14) which is composed of a plurality of split-structure monomers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811557311.2A CN109681749B (en) | 2018-12-19 | 2018-12-19 | Rotor position detection installation assembly and magnetic suspension bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811557311.2A CN109681749B (en) | 2018-12-19 | 2018-12-19 | Rotor position detection installation assembly and magnetic suspension bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109681749A CN109681749A (en) | 2019-04-26 |
| CN109681749B true CN109681749B (en) | 2020-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811557311.2A Active CN109681749B (en) | 2018-12-19 | 2018-12-19 | Rotor position detection installation assembly and magnetic suspension bearing |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110657160B (en) * | 2019-11-19 | 2021-07-23 | 湖南新达微轴承有限公司 | Magnetic bearing |
| CN112145525B (en) * | 2020-09-23 | 2022-02-01 | 重庆齿轮箱有限责任公司 | Auxiliary device for bonding split sealing ring and bonding method |
| CN114152237A (en) * | 2021-11-26 | 2022-03-08 | 珠海格力电器股份有限公司 | Monitoring device based on radial error of main shaft |
| CN115070479B (en) * | 2022-06-15 | 2023-12-08 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Lathe workpiece positioning device and method |
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| WO2017084604A1 (en) * | 2015-11-18 | 2017-05-26 | 珠海格力节能环保制冷技术研究中心有限公司 | Axial displacement detection method, device and system |
| 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 |
| CN206992860U (en) * | 2017-04-19 | 2018-02-09 | 任丘市强东电机有限公司 | A kind of magnetic suspension bearing motor |
| CN207049193U (en) * | 2017-08-01 | 2018-02-27 | 深圳麦格动力技术有限公司 | A kind of permanent magnetism off-set magnetic suspension unit and magnetic suspension motor |
| CN107968540A (en) * | 2017-12-27 | 2018-04-27 | 北京信息科技大学 | Magnetic suspension brshless DC motor axial displacement and rotor-position integrated sensor |
| CN108374838A (en) * | 2018-04-08 | 2018-08-07 | 珠海格力节能环保制冷技术研究中心有限公司 | Magnetic suspension bearing |
| CN108827207A (en) * | 2018-08-06 | 2018-11-16 | 南京磁谷科技有限公司 | Using the magnetic suspension bearing radial displacement transducer component and its control method of triplex redundance control |
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2018
- 2018-12-19 CN CN201811557311.2A patent/CN109681749B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104101372A (en) * | 2013-04-12 | 2014-10-15 | 珠海格力节能环保制冷技术研究中心有限公司 | Magnetic-suspension bearing device and sensor fixation support thereof |
| WO2017084604A1 (en) * | 2015-11-18 | 2017-05-26 | 珠海格力节能环保制冷技术研究中心有限公司 | Axial displacement detection method, device and system |
| CN206992860U (en) * | 2017-04-19 | 2018-02-09 | 任丘市强东电机有限公司 | A kind of magnetic suspension bearing motor |
| 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 |
| CN207049193U (en) * | 2017-08-01 | 2018-02-27 | 深圳麦格动力技术有限公司 | A kind of permanent magnetism off-set magnetic suspension unit and magnetic suspension motor |
| CN107968540A (en) * | 2017-12-27 | 2018-04-27 | 北京信息科技大学 | Magnetic suspension brshless DC motor axial displacement and rotor-position integrated sensor |
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| CN108827207A (en) * | 2018-08-06 | 2018-11-16 | 南京磁谷科技有限公司 | Using the magnetic suspension bearing radial displacement transducer component and its control method of triplex redundance control |
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| CN109681749A (en) | 2019-04-26 |
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