CN107956749A - A kind of axial rack mounting structure of magnetic suspension cfentrifugal blower - Google Patents
A kind of axial rack mounting structure of magnetic suspension cfentrifugal blower Download PDFInfo
- Publication number
- CN107956749A CN107956749A CN201711261181.3A CN201711261181A CN107956749A CN 107956749 A CN107956749 A CN 107956749A CN 201711261181 A CN201711261181 A CN 201711261181A CN 107956749 A CN107956749 A CN 107956749A
- Authority
- CN
- China
- Prior art keywords
- axial
- magnetic
- rotor
- sensor
- bearing
- 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.)
- Granted
Links
- 239000000725 suspension Substances 0.000 title claims abstract description 15
- 238000001514 detection method Methods 0.000 claims abstract description 46
- 238000006073 displacement reaction Methods 0.000 claims abstract description 18
- 238000009434 installation Methods 0.000 claims description 27
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 238000007689 inspection Methods 0.000 claims description 4
- 238000009792 diffusion process Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/624—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/626—Mounting or removal of fans
-
- 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
- F04D29/053—Shafts
- F04D29/054—Arrangements for joining or assembling shafts
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a kind of axial rack mounting structure of magnetic suspension cfentrifugal blower, stator and magnetic axis bearing correspond to be fixed on casing respectively, and magnetic bearing is arranged in magnetic axis bearing, and in stator and magnetic bearing, diffuser is fixedly connected rotor bearing with casing；Sensor stand is sheathed on rotor, and sensor stand is fixedly connected with magnetic bearing, front shaft sleeve, rear axle housing and detection plate are sheathed on rotor, there is axial displacement detector gap between the right side of detection plate and the inner face of sensor stand, the axial displacement detector gap is placed in outside casing, detection mouth is equipped with sensor stand, the detection mouth and axial displacement detector gap connect, and impeller is fixedly connected on rotor.The present invention solves the problems, such as that axial sensor is not easy detection and adjustment axial gap, solves the problems, such as that axial sensor is not easy to remove.
Description
Technical field：
The present invention relates to a kind of axial rack mounting structure of magnetic suspension cfentrifugal blower.
Background technology：
Sensor stand 1 in existing magnetic suspension cfentrifugal blower is installed on casing internal, wind turbine axial sensor peace
On sensor stand 1, the part such as detection plate 2, positioning shaft sleeve 3, front shaft sleeve 61, rear axle housing 62, sealing axle sleeve 7 is all installed on
The left side (as shown in Figure 1) of axial sensor, part is more, is unfavorable for processing, and each part processing has the margin of tolerance, more
A part combination is together, it is easy to causes the error of the accumulation of axial gap.
In addition, axial sensor is installed on above sensor stand 1, sensor stand 1 is mounted on magnetic bearing 5, magnetic
Bearing 5 be with the direct elastic conjunction of casing, so cause, it is desirable to which dismantling axial sensor just can only be with screwdriver by sensor
Stent 1, to disassembling, there is multiple pickup wires above magnetic bearing 5 above sensor, it is very inconvenient to dismantle；Assembling
During detect axial gap when, detection plate 2 is installed in place, because in casing internal, it has not been convenient to clearance gauge operate, operation
Worker is adjusted repeatedly will reduce efficiency of assembling.It is incorrect, it is necessary to by magnetic axis that if axial gap is detected during fan operation
The all dismountings, including spiral case, air intake duct etc. of all parts in 5 left sides are held, after detection plate 2 and positioning shaft sleeve 3 take out, Zhi Nengtong
Axial gap could be adjusted by crossing the axial length of turning positioning shaft sleeve, if assembly and disassembly can waste many times repeatedly, workload is huge
Greatly.
The content of the invention：
The present invention is to provide a kind of magnetic suspension cfentrifugal blower to solve the above-mentioned problems of the prior art
Axial rack mounting structure.
The technical solution adopted in the present invention has：A kind of axial rack mounting structure of magnetic suspension cfentrifugal blower, bag
Include casing, stator, rotor, magnetic axis bearing, magnetic bearing, front shaft sleeve, rear axle housing, sensor stand, detection plate, impeller and diffusion
Device, shaft position sensor is equipped with sensor stand, stator installation cavity and magnetic bearing installation cavity are equipped with the casing, fixed
Correspondence is fixed in stator installation cavity and magnetic bearing installation cavity respectively for son and magnetic axis bearing, and magnetic bearing is arranged in magnetic axis bearing, is turned
Son is supported in stator and magnetic bearing, and one end of rotor through diffuser and is stretched in outside casing, and diffuser and casing are fixed and connected
Connect；
Sensor stand is sheathed on rotor, and sensor stand is fixedly connected with magnetic bearing, front shaft sleeve, rear axle housing and inspection
Survey disk to be sheathed on rotor, and rear axle housing and front shaft sleeve are located at the left and right sides of detection plate, the right side of detection plate and sensing
There is axial displacement detector gap between the inner face of device stent, which is placed in outside casing, in sensor branch
Frame is equipped with detection mouth, and the detection mouth and axial displacement detector gap connect, and impeller is fixedly connected on rotor, and impeller will
Forward and backward axle sleeve and detection plate are axially positioned on rotor.
Further, the sensor stand includes a circular body, and the inner peripheral wall of the body raises up
And boss portion is formed, the installation kidney-shaped platform with arc-shaped edges and straight flange is equipped with the upper surface of boss portion, installation kidney-shaped platform
Formed with detection mouth between straight flange and the inner peripheral wall of boss portion.
Further, axis hole and sensor mounting hole are equipped with the axial direction of installation kidney-shaped platform, axis hole is positioned at installation waist
At the center of shape platform.
Further, the axial direction of the body is equipped with some mounting holes.
Further, rounded projections, axis hole and sensor peace are equipped with the center of the lower face of the installation kidney-shaped platform
Hole is filled through the rounded projections；Axial displacement detector gap is formed between rounded projections and the right side of detection plate.
Further, the detection mouth is more than the axial width of rounded projections in the depth of body axial direction.
Further, the magnetic axis bearing is equipped with positioning shaft shoulder, and the positioning is equipped with the inner wall of magnetic bearing installation cavity
The positioning groove that the shaft shoulder is adapted.
The present invention has the advantages that：
1) lateral opening on sensor stand, and after bearing, very easily axis can be detected with clearance gauge
To the distance between displacement sensor and detection faces, since axial sensor stent is in casing end, detection plate and sensor
Axial displacement detector gap between stent is convex in outside casing, so the detection axial gap in very convenient assembling process；
2) in machine running process, after axial gap shifts, as long as by a small amount of exterior part (diffuser, leaf
Wheel etc.) disassemble, then adjust the gasket of sensor stand, the mismachining tolerance excessively produced without part；
3) since sensor stand assembling is refilled after inner body all installs, so assembly and disassembly are very convenient；
4) when needing to adjust axial spacing, gasket directly is added between the mounting hole and magnetic bearing of stent, is reached
Suitable spacing, will not produce the axial displacement of rotor seal ring.
Brief description of the drawings：
Fig. 1 is an installation diagram for stent axial in the prior art.
Fig. 2 is the axial rack mounting structure figure of the present invention.
Fig. 3 is explosive view of the present invention.
Fig. 4 is partial enlarged view of the present invention.
Fig. 5 to Fig. 7 is the structure chart of sensor stand in the present invention.
Embodiment：
The present invention is further illustrated below in conjunction with the accompanying drawings.
Such as Fig. 2 to Fig. 7, the present invention discloses a kind of axial rack mounting structure of magnetic suspension cfentrifugal blower, including machine
Shell 100, stator 200, rotor 300, magnetic axis bearing 4, magnetic bearing 5, front shaft sleeve 61, rear axle housing 62, sensor stand 1, detection plate
2nd, impeller 8 and diffuser 9, shaft position sensor is equipped with sensor stand 1, stator installation cavity 101 is equipped with casing 100
With magnetic bearing installation cavity 102, correspondence is fixed on stator installation cavity 101 and magnetic bearing installation cavity respectively for stator 200 and magnetic axis bearing 4
In 102, magnetic bearing 5 is arranged in magnetic axis bearing 4, and is interference fitted between magnetic bearing 5 and magnetic axis bearing 4.Rotor 300 is supported on fixed
In son 200 and magnetic bearing 5, and one end of rotor 300 is through diffuser 9 and stretching in outside casing 100, diffuser 9 by screw and
Casing 100 is fixedly connected.
Sensor stand 1 is sheathed on rotor 300, and sensor stand 1 is fixedly connected with magnetic bearing 5, front shaft sleeve 61, after
Axle sleeve 62 and detection plate 2 are sheathed on rotor 300, are that transition is matched somebody with somebody between forward and backward axle sleeve and detection plate 2 and rotor 300
Close.Rear axle housing 62 and front shaft sleeve 61 are located at the left and right sides of detection plate 2, the right side of detection plate 2 and the inner of sensor stand 1
There is axial displacement detector gap 400 between face, which is placed in outside casing 100, in sensor stand 1
Detection mouth 10 is equipped with, the detection mouth 10 and axial displacement detector gap 400 connect, and impeller 8 is fixedly connected on rotor 300
On, forward and backward axle sleeve and detection plate 2 are axially positioned on rotor 300 by impeller 8.
Sensor stand 1 in the present invention includes a circular body 11, and the inner peripheral wall of body 11 raises up simultaneously
Boss portion 12 is formed, the installation kidney-shaped platform 13 with arc-shaped edges and straight flange is equipped with the upper surface of boss portion 12, kidney-shaped is installed
Formed with detection mouth 10 between the straight flange of platform 13 and the inner peripheral wall of boss portion 12.
Axis hole 131 and sensor mounting hole 132 are equipped with the axial direction of installation kidney-shaped platform 13, axis hole 131 is positioned at installation
At the center of kidney-shaped platform 13.Some mounting holes 110 are equipped with the axial direction of body 11.
Rounded projections 133, axis hole 131 and sensor mounting hole are equipped with the center of the lower face of installation kidney-shaped platform 13
132 through the rounded projections 133；Axial displacement is formed between the end face of rounded projections 133 and the right side of detection plate 2
Detector gap 400.
To prevent rounded projections 133 from interfering clearance gauge, detection mouth 10 is more than circular convex in the depth of 11 axial direction of body
Play the axial width in portion 133.
Positioning shaft shoulder 41 is equipped with magnetic axis bearing 4, the positioning shaft shoulder 41 is equipped with the inner wall of magnetic bearing installation cavity 102
The positioning groove being adapted.Positioning shaft shoulder 41 and positioning groove are engaged, the effect that is located by connecting ensured.
The present invention is convex in outside casing 100 by the axial displacement detector gap 400 between detection plate 2 and sensor stand 1, and
And detection mouth 10 is equipped with sensor stand 1, in use, easily 500 detector gap of clearance gauge (such as Fig. 4) is used, if gap does not have
Have and reach requirement, it is only necessary to be added gasket in 110 junction of mounting hole (a positions in Fig. 4) of body 11, it is not necessary to again by original knot
After detection plate 2 in structure is dismantled, turning detection faces will not so cause the sealing on rotor to reach axial gap requirement
Axial displacement occurs for circle.
Compared with being placed on the detection plate of inside, the convenient adjustment of mounting structure of the present invention and replacement, simple in structure, milling machine processing
Difficulty is low, and the time is few.When machine normal operation, it is found that axial distance needs have adjusted, it is only necessary to take diffuser, impeller
Going out, axial gap can very easily be adjusted by increasing or decreasing gasket in sensor stand 1 and 5 centre position of magnetic bearing,
Detection plate and positioning shaft sleeve turning be need not be taken out, error size, convenient dismounting reduced.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, some improvement can also be made without departing from the principle of the present invention, these improvement also should be regarded as the present invention's
Protection domain.
Claims (7)
1. a kind of axial rack mounting structure of magnetic suspension cfentrifugal blower, including casing (100), stator (200), rotor
(300), magnetic axis bearing (4), magnetic bearing (5), front shaft sleeve (61), rear axle housing (62), sensor stand (1), detection plate (2), leaf
(8) and diffuser (9) are taken turns, shaft position sensor is equipped with sensor stand (1), it is characterised in that：The casing (100)
Interior to be equipped with stator installation cavity (101) and magnetic bearing installation cavity (102), correspondence is fixed on respectively for stator (200) and magnetic axis bearing (4)
In stator installation cavity (101) and magnetic bearing installation cavity (102), magnetic bearing (5) is arranged in magnetic axis bearing (4), rotor (300) supporting
It is interior in stator (200) and magnetic bearing (5), and one end of rotor (300) through diffuser (9) and stretches in casing (100) outside, diffusion
Device (9) is fixedly connected with casing (100)；
Sensor stand (1) is sheathed on rotor (300), and sensor stand (1) is fixedly connected with magnetic bearing (5), front shaft sleeve
(61), rear axle housing (62) and detection plate (2) are sheathed on rotor (300), and rear axle housing (62) and front shaft sleeve (61) are positioned at inspection
The left and right sides of disk (2) is surveyed, has axial displacement detection between the right side of detection plate (2) and the inner face of sensor stand (1)
Gap (400), the axial displacement detector gap (400) are placed in casing (100) outside, detection mouth are equipped with sensor stand (1)
(10), the detection mouth (10) and axial displacement detector gap (400) connect, and impeller (8) is fixedly connected on rotor (300),
Forward and backward axle sleeve and detection plate (2) are axially positioned on rotor (300) by impeller (8).
2. the axial rack mounting structure of magnetic suspension cfentrifugal blower as claimed in claim 1, it is characterised in that：The biography
Sensor bracket (1) includes a circular body (11), and the inner peripheral wall of the body (11) raises up and forms boss portion
(12), the installation kidney-shaped platform (13) with arc-shaped edges and straight flange is equipped with the upper surface of boss portion (12), kidney-shaped platform is installed
(13) formed with detection mouth (10) between straight flange and the inner peripheral wall of boss portion (12).
3. the axial rack mounting structure of magnetic suspension cfentrifugal blower as claimed in claim 2, it is characterised in that：Installing
The axial direction of kidney-shaped platform (13) is equipped with axis hole (131) and sensor mounting hole (132), and axis hole (131) is positioned at installation kidney-shaped platform
(13) at center.
4. the axial rack mounting structure of magnetic suspension cfentrifugal blower as claimed in claim 2, it is characterised in that：Described
The axial direction of body (11) is equipped with some mounting holes (110).
5. the axial rack mounting structure of magnetic suspension cfentrifugal blower as claimed in claim 2, it is characterised in that：The peace
Rounded projections (133), axis hole (131) and sensor mounting hole (132) are equipped with the center of the lower face of dress kidney-shaped platform (13)
Through the rounded projections (133)；Axial displacement inspection is formed between the right side of rounded projections (133) and detection plate (2)
Survey gap (400).
6. the axial rack mounting structure of magnetic suspension cfentrifugal blower as claimed in claim 2, it is characterised in that：The inspection
Survey the axial width that mouth (10) is more than rounded projections (133) in the depth of body (11) axial direction.
7. the axial rack mounting structure of magnetic suspension cfentrifugal blower as claimed in claim 1, it is characterised in that：The magnetic
Bearing block (4) is equipped with positioning shaft shoulder (41), is mutually fitted equipped with the positioning shaft shoulder (41) on the inner wall of magnetic bearing installation cavity (102)
The positioning groove matched somebody with somebody.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711261181.3A CN107956749B (en) | 2017-12-04 | 2017-12-04 | Axial support mounting structure of magnetic suspension centrifugal blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711261181.3A CN107956749B (en) | 2017-12-04 | 2017-12-04 | Axial support mounting structure of magnetic suspension centrifugal blower |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107956749A true CN107956749A (en) | 2018-04-24 |
| CN107956749B CN107956749B (en) | 2023-11-17 |
Family
ID=61963122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711261181.3A Active CN107956749B (en) | 2017-12-04 | 2017-12-04 | Axial support mounting structure of magnetic suspension centrifugal blower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107956749B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111486112A (en) * | 2019-01-29 | 2020-08-04 | 青岛海尔智能技术研发有限公司 | Magnetic suspension centrifugal compressor and air conditioning system |
| WO2021114492A1 (en) * | 2019-12-11 | 2021-06-17 | 南京磁谷科技股份有限公司 | Structure using axial sensor for gap adjustment in air compressor |
| WO2023015737A1 (en) * | 2021-08-11 | 2023-02-16 | 鑫磊压缩机股份有限公司 | Blower of magnetic levitation centrifuge |
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| JP2017203521A (en) * | 2016-05-12 | 2017-11-16 | 三菱電機株式会社 | Magnetic bearing device and blower |
| CN207568946U (en) * | 2017-12-04 | 2018-07-03 | 南京磁谷科技有限公司 | A kind of axial rack mounting structure of magnetic suspension cfentrifugal blower |
-
2017
- 2017-12-04 CN CN201711261181.3A patent/CN107956749B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020036435A1 (en) * | 2000-09-13 | 2002-03-28 | Atsushi Ooyama | Magnetic levitation rotating machine |
| JP2008082425A (en) * | 2006-09-27 | 2008-04-10 | Ntn Corp | Magnetic bearing device |
| CN200996828Y (en) * | 2006-12-27 | 2007-12-26 | 上海汽轮机有限公司 | Super-long depth measuring equipment |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111486112A (en) * | 2019-01-29 | 2020-08-04 | 青岛海尔智能技术研发有限公司 | Magnetic suspension centrifugal compressor and air conditioning system |
| WO2021114492A1 (en) * | 2019-12-11 | 2021-06-17 | 南京磁谷科技股份有限公司 | Structure using axial sensor for gap adjustment in air compressor |
| WO2023015737A1 (en) * | 2021-08-11 | 2023-02-16 | 鑫磊压缩机股份有限公司 | Blower of magnetic levitation centrifuge |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107956749B (en) | 2023-11-17 |
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Address after: No.99 Jinxin Middle Road, Jiangning District, Nanjing City, Jiangsu Province (Jiangning Development Zone) Patentee after: Nanjing Cigu Technology Co.,Ltd. Address before: 211102 No. 100 Jiuzhu Road, Jiangning Development Zone, Nanjing, Jiangsu Province Patentee before: NANJING CIGU Ltd.,Corp. |