CN210297420U - Magnetic suspension motor bearing for two-for-one twister - Google Patents
Magnetic suspension motor bearing for two-for-one twister Download PDFInfo
- Publication number
- CN210297420U CN210297420U CN201921424309.8U CN201921424309U CN210297420U CN 210297420 U CN210297420 U CN 210297420U CN 201921424309 U CN201921424309 U CN 201921424309U CN 210297420 U CN210297420 U CN 210297420U
- Authority
- CN
- China
- Prior art keywords
- magnetic bearing
- end cover
- bearing
- sleeve
- main shaft
- 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.)
- Withdrawn - After Issue
Links
- 239000000725 suspension Substances 0.000 title claims abstract description 27
- 241001589086 Bellapiscis medius Species 0.000 title claims abstract description 18
- 238000004804 winding Methods 0.000 claims abstract description 13
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 13
- 229910052782 aluminium Inorganic materials 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 2
- 230000005415 magnetization Effects 0.000 abstract description 2
- 238000005299 abrasion Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
Images
Landscapes
- Motor Or Generator Frames (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The utility model provides a two-for-one twister is with magnetic suspension motor bearing, belongs to motor bearing technical field, structurally comprises main shaft, rotor, stator winding, front end housing and rear end cap, adopts the structure that magnetic suspension bearing and ball bearing combined together in the front and back end cap wherein, the utility model discloses novel structure, the theory of operation is clear, reaches the purpose of radial and axial stability suspension through the form that ball bearing and the magnetic bearing that magnetizes through different magnetization directions make up each other, compares with traditional motor bearing, the utility model discloses the temperature rise is little, and noise at work is low, has further improved motor speed, work efficiency and life.
Description
Technical Field
The utility model belongs to the technical field of the motor bearing, a magnetic suspension motor bearing is related to, especially relate to a magnetic suspension motor bearing for two-for-one twister.
Background
At present, the bearing industry is a basic industry of manufacturing industry and is also an important component matched with national major equipment and precision equipment manufacturing industry. The magnetic suspension technology has been developed greatly in the field of bearings. The characteristics of the universal high-speed bearing are as follows: the precision is high, the surface roughness is small, the clearance is small and the volume is small; the defects are as follows: when the high-speed bearing is under large load, the working temperature is high, the failure rate is high, the service life is short and the power consumption is large; the magnetic bearing of the corresponding magnetic suspension bearing has no mechanical contact, the rotor can run to a very high rotating speed, and the magnetic suspension bearing has the advantages of no mechanical abrasion, low energy consumption, small noise, long service life, no need of lubrication, no oil pollution and the like, and is particularly suitable for special environments such as high speed, vacuum, ultra-clean and the like. At present, the traditional bearing is widely adopted in the two-for-one twister, and the bearing has the advantages of fast temperature rise, large abrasion and large noise under the working conditions of high speed and heavy load, thereby not only influencing the working efficiency, but also having potential safety hazard.
SUMMERY OF THE UTILITY MODEL
The utility model aims at that the easy appearance temperature of traditional motor bearing during operation for two-for-one twister is high, and mechanical wear is big grade defect, provides a two-for-one twister magnetic suspension motor bearing, through the structure that adopts magnetic suspension bearing and ball bearing to combine together to reduce calorific capacity, reduce noise at work, the pollution abatement has further improved motor speed, work efficiency and life.
The technical scheme of the utility model is that: a magnetic suspension motor bearing for a two-for-one twister comprises a main shaft, a rotor arranged in the middle of the main shaft and a stator winding arranged outside the rotor; the method is characterized in that: a front end cover is arranged on the main shaft at the front end of the stator winding, a front end cover sleeve is arranged in the front end cover, the inner wall of the front end cover sleeve is fixedly provided with a front end cover ball bearing and a front end cover magnetic bearing, the front end cover ball bearing and the front end cover magnetic bearing form a gap with the outer surface of the main shaft, a first inner ring magnetic bearing and a second inner ring magnetic bearing are fixedly arranged on the main shaft in the front end cover, an aluminum gasket is arranged between the first inner ring magnetic bearing and the second inner ring magnetic bearing, the first inner ring magnetic bearing, the second inner ring magnetic bearing and the aluminum gasket are axially fixed through a first sleeve on the main shaft, a first outer ring magnetic bearing is fixedly arranged on the inner wall of the front end cover, gaps are formed among the first outer ring magnetic bearing, the first inner ring magnetic bearing, the second inner ring magnetic bearing and the aluminum gasket, and a front end cover body is connected to the outer side surface of the front end cover sleeve; a rear end cover is arranged on a main shaft at the rear end of the stator winding, a fourth sleeve is sleeved on the main shaft in the rear end cover and used for axially fixing the rotor, a third inner ring magnetic bearing and a fourth inner ring magnetic bearing are fixedly arranged on the outer surface of the fourth sleeve, an aluminum gasket is arranged between the third inner ring magnetic bearing and the fourth inner ring magnetic bearing, a rear end cover magnetic bearing and a second outer ring magnetic bearing are fixedly arranged on the inner wall of one side of the rear end cover, a gap is formed between the second outer ring magnetic bearing and the third inner ring magnetic bearing as well as the fourth inner ring magnetic bearing, a gap is formed between the rear end cover and the fourth sleeve, a first magnetic bearing and a second magnetic bearing are fixedly arranged on the inner wall of the other side of the rear end cover, a second sleeve is arranged between the first magnetic bearing and the main shaft, a third sleeve is arranged between the second magnetic bearing and the main shaft, and a third magnetic bearing is arranged between the, the third magnetic bearing is fixedly connected with the main shaft, two ends of the third magnetic bearing are axially fixed through a second sleeve and a third sleeve respectively, the outer side surface of the rear end cover is connected with a rear end cover sleeve, a rear end cover ball bearing is fixedly arranged on the inner wall of the rear end cover sleeve, and a gap is formed between the rear end cover ball bearing and the second sleeve.
The outer surface of the main shaft is of a step structure, and the inner part of the main shaft is of a through hole structure with the same diameter.
The clearance between the front end cover ball bearing and the main shaft is smaller than the clearance between the front end cover magnetic bearing and the main shaft.
The clearance between the rear end cover ball bearing and the second sleeve is smaller than the clearance between the first magnetic bearing and the second sleeve.
The first magnetic bearing, the second magnetic bearing and the third magnetic bearing are axially arranged at equal intervals.
The utility model has the advantages that: the utility model provides a pair of two-for-one twister is with magnetic suspension motor bearing comprises main shaft, rotor, stator winding, front end housing and rear end cap structurally, adopts the structure that magnetic suspension bearing and ball bearing combined together in the front and back end cap wherein, the utility model discloses novel structure, the theory of operation is clear, reaches the purpose of radial and axial stability suspension through the form that ball bearing and the magnetic bearing that magnetizes through different magnetization directions make up each other, compares with traditional motor bearing, the utility model discloses the temperature rise is little, and noise at work is low, has further improved motor speed, work efficiency and life.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic view of the magnetizing direction principle of the bearing set for axially magnetizing and radially supporting the middle front end cover of the utility model.
Fig. 3 is a schematic view of the magnetizing direction principle of the bearing set for axially magnetizing and radially supporting the middle and rear end covers of the present invention.
Fig. 4 is the schematic view of the magnetizing direction principle of the bearing set for radial magnetizing and axial supporting of the middle and rear end covers of the utility model.
In the figure: the magnetic bearing comprises a front end cover 1, a front end cover sleeve 2, a front end cover body 3, a front end cover ball bearing 4, a front end cover magnetic bearing 5, a first outer ring magnetic bearing 6, a first inner ring magnetic bearing 7, a second inner ring magnetic bearing 8, an aluminum gasket 9, a first sleeve 10, a rear end cover 11, a rear end cover sleeve 12, a rear end cover ball bearing 13, a first magnetic bearing 14, a second magnetic bearing 15, a third magnetic bearing 16, a second sleeve 17, a third sleeve 18, a rear end cover magnetic bearing 19, a second outer ring magnetic bearing 20, a second inner ring magnetic bearing 21, a fourth inner ring magnetic bearing 22, a fourth sleeve 23, a main shaft 24, a rotor 25 and a stator winding 26.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
as shown in fig. 1, a magnetic suspension motor bearing for a two-for-one twister comprises a main shaft 24, a rotor 25 arranged in the middle of the main shaft 24, a stator winding 26 arranged outside the rotor 25, a front end cover 1 arranged at the front end of the stator winding 26 and a rear end cover 11 arranged at the rear end of the stator winding 26; a front end cover sleeve 2 is arranged in the front end cover 1, a front end cover ball bearing 4 and a front end cover magnetic bearing 5 are fixedly arranged on the inner wall of the front end cover sleeve 2, gaps are formed between the front end cover ball bearing 4 and the front end cover magnetic bearing 5 and the outer surface of a main shaft 24, a first inner ring magnetic bearing 7 and a second inner ring magnetic bearing 8 are fixedly arranged on the main shaft 24 in the front end cover 1, an aluminum gasket 9 is arranged between the first inner ring magnetic bearing 7 and the second inner ring magnetic bearing 8, the first inner ring magnetic bearing 7 and the second inner ring magnetic bearing 6 are arranged, the aluminum gaskets 9 are axially fixed through the first sleeve 10 on the main shaft 24, the inner wall of the front end cover 1 is fixedly provided with a first outer ring magnetic bearing 6, gaps are formed among the first outer ring magnetic bearing 6, a first inner ring magnetic bearing 7, a second inner ring magnetic bearing 8 and the aluminum gaskets 9, and the outer side surface of the front end cover sleeve 2 is connected with a front end cover body 3; a rear end cover 11 is arranged on a main shaft 24 at the rear end of a stator winding 26, a fourth sleeve 23 is sleeved on the main shaft 24 in the rear end cover 11, the fourth sleeve 23 is used for axially fixing a rotor 25, a third inner ring magnetic bearing 21 and a fourth inner ring magnetic bearing 22 are fixedly arranged on the outer surface of the fourth sleeve 23, an aluminum gasket is arranged between the third inner ring magnetic bearing 21 and the fourth inner ring magnetic bearing 22, a rear end cover magnetic bearing 19 and a second outer ring magnetic bearing 20 are fixedly arranged on the inner wall of one side of the rear end cover 11, a gap is formed between the second outer ring magnetic bearing 20 and the third inner ring magnetic bearing 21 as well as between the fourth inner ring magnetic bearing 22, a gap is formed between the rear end cover magnetic bearing 19 and the fourth sleeve 23, a first magnetic bearing 14 and a second magnetic bearing 15 are fixedly arranged on the inner wall of the other side of the rear end cover 11, a second sleeve 17 is arranged between the first magnetic bearing 14 and, a third magnetic bearing 16 is arranged between the first magnetic bearing 14 and the second magnetic bearing 15, the third magnetic bearing 16 is fixedly connected with a main shaft 24, two ends of the third magnetic bearing 16 are respectively axially fixed through a second sleeve 17 and a third sleeve 18, the outer side surface of the rear end cover 11 is connected with a rear end cover sleeve 12, a rear end cover ball bearing 13 is fixedly arranged on the inner wall of the rear end cover sleeve 12, and a gap is formed between the rear end cover ball bearing 13 and the second sleeve 17.
As shown in FIG. 1, in the magnetic suspension motor bearing for the two-for-one twister, the outer surface of a main shaft 24 is of a step structure, and the inside of the main shaft 24 is of a through hole structure with equal diameter; the clearance between the front end cover ball bearing 4 and the main shaft 24 is smaller than the clearance between the front end cover magnetic bearing 5 and the main shaft 24; the clearance between the rear end cover ball bearing 13 and the second sleeve 17 is smaller than the clearance between the first magnetic bearing 14 and the second sleeve 17; the first magnetic bearing 14, the second magnetic bearing 15 and the third magnetic bearing 16 are axially arranged at equal intervals.
As shown in fig. 1-4, the magnetic suspension motor bearing for the two-for-one twister works according to the following principle:
(1) radial suspension
The magnetic bearings 5, 19 alone provide radial support; the magnetic bearings 14, 15, 16 are axially magnetized in the direction shown in fig. 3 to provide radial support; the clearance between the ball bearings 4 and 13 and the main shaft 24 is smaller than the clearance between the magnetic bearings and the main shaft, so that the situation that the magnetic bearings and the main shaft collide and are broken is prevented, and the radial support is guaranteed.
(2) Axial suspension
The magnetic bearings 6, 7, 8 are similar to 20, 21, 22 and are radially magnetized in a direction as shown in fig. 2 and 4 to provide corresponding axial support.
Radial and axial stable support is provided for the main shaft through the magnetic bearing, and the ball bearing provides anti-touch assistance, so that safe and stable suspension of the main shaft can be realized. The bearing does not have any mechanical abrasion, so that the bearing has lower maintenance cost and longer service life, and does not bring any pollutant to the environment; friction of the bearing is avoided, and heat and noise generated by friction of the traditional bearing are also avoided; more importantly, under the condition of the same bearing capacity or relatively larger bearing capacity, the magnetic bearing can still achieve higher revolution precision and high rotating speed. These characteristics are all very suitable for the requirement that two-for-one twister motor needs high rotational speed, low noise, low pollution, low energy consumption.
Claims (5)
1. A magnetic suspension motor bearing for a two-for-one twister comprises a main shaft (24), a rotor (25) arranged in the middle of the main shaft (24) and a stator winding (26) arranged outside the rotor (25); the method is characterized in that: a front end cover (1) is arranged on a main shaft (24) at the front end of the stator winding (26), a front end cover sleeve (2) is arranged in the front end cover (1), a front end cover ball bearing (4) and a front end cover magnetic bearing (5) are fixedly arranged on the inner wall of the front end cover sleeve (2), gaps are formed between the front end cover ball bearing (4) and the front end cover magnetic bearing (5) and the outer surface of the main shaft (24), a first inner ring magnetic bearing (7) and a second inner ring magnetic bearing (8) are fixedly arranged on the main shaft (24) in the front end cover (1), an aluminum gasket (9) is arranged between the first inner ring magnetic bearing (7) and the second inner ring magnetic bearing (8), the first inner ring magnetic bearing (7), the second inner ring magnetic bearing (8) and the aluminum gasket (9) are axially fixed through a first sleeve (10) on the main shaft (24), a first outer ring (6) is fixedly arranged on the inner wall of the front end, gaps are formed among the first outer ring magnetic bearing (6), the first inner ring magnetic bearing (7), the second inner ring magnetic bearing (8) and the aluminum gasket (9), and the outer side surface of the front end cover sleeve (2) is connected with a front end cover body (3); a rear end cover (11) is arranged on a main shaft (24) at the rear end of the stator winding (26), a fourth sleeve (23) is sleeved on the main shaft (24) in the rear end cover (11), the rotor (25) is axially fixed by the fourth sleeve (23), a third inner ring magnetic bearing (21) and a fourth inner ring magnetic bearing (22) are fixedly arranged on the outer surface of the fourth sleeve (23), an aluminum gasket is arranged between the third inner ring magnetic bearing (21) and the fourth inner ring magnetic bearing (22), a rear end cover magnetic bearing (19) and a second outer ring magnetic bearing (20) are fixedly arranged on the inner wall of one side of the rear end cover (11), a gap is formed between the second outer ring magnetic bearing (20) and the third inner ring magnetic bearing (21) and the fourth inner ring magnetic bearing (22), a gap is formed between the rear end cover magnetic bearing (19) and the fourth sleeve (23), and a first end cover (14) and a second end cover (15) are fixedly arranged on the inner wall of the other side of the rear end cover (11 A second sleeve (17) is arranged between the first magnetic bearing (14) and the main shaft (24), a third sleeve (18) is arranged between the second magnetic bearing (15) and the main shaft (24), a third magnetic bearing (16) is arranged between the first magnetic bearing (14) and the second magnetic bearing (15), the third magnetic bearing (16) is fixedly connected with the main shaft (24), two ends of the third magnetic bearing (16) are axially fixed through the second sleeve (17) and the third sleeve (18) respectively, a rear end cover sleeve (12) is connected to the outer side surface of the rear end cover (11), a rear end cover ball bearing (13) is fixedly arranged on the inner wall of the rear end cover sleeve (12), and a gap is formed between the rear end cover ball bearing (13) and the second sleeve (17).
2. The magnetic suspension motor bearing for the two-for-one twister of claim 1, wherein: the outer surface of the main shaft (24) is of a step structure, and the inner part of the main shaft (24) is of a through hole structure with the same diameter.
3. The magnetic suspension motor bearing for the two-for-one twister of claim 1, wherein: the clearance between the front end cover ball bearing (4) and the main shaft (24) is smaller than the clearance between the front end cover magnetic bearing (5) and the main shaft (24).
4. The magnetic suspension motor bearing for the two-for-one twister of claim 1, wherein: the clearance between the rear end cover ball bearing (13) and the second sleeve (17) is smaller than the clearance between the first magnetic bearing (14) and the second sleeve (17).
5. The magnetic suspension motor bearing for the two-for-one twister of claim 1, wherein: the first magnetic bearing (14), the second magnetic bearing (15) and the third magnetic bearing (16) are axially arranged at equal intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921424309.8U CN210297420U (en) | 2019-08-29 | 2019-08-29 | Magnetic suspension motor bearing for two-for-one twister |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921424309.8U CN210297420U (en) | 2019-08-29 | 2019-08-29 | Magnetic suspension motor bearing for two-for-one twister |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210297420U true CN210297420U (en) | 2020-04-10 |
Family
ID=70063172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921424309.8U Withdrawn - After Issue CN210297420U (en) | 2019-08-29 | 2019-08-29 | Magnetic suspension motor bearing for two-for-one twister |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210297420U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110401293A (en) * | 2019-08-29 | 2019-11-01 | 扬州大学 | A kind of two-for-one twister magnetic levitation motor bearings |
-
2019
- 2019-08-29 CN CN201921424309.8U patent/CN210297420U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110401293A (en) * | 2019-08-29 | 2019-11-01 | 扬州大学 | A kind of two-for-one twister magnetic levitation motor bearings |
| CN110401293B (en) * | 2019-08-29 | 2024-03-15 | 扬州大学 | Magnetic suspension motor bearing for two-for-one twister |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101571161A (en) | Magnetic sliding bearing | |
| CN206850573U (en) | Rotating shaft protection and radial displacement detection structure, magnetic suspension motor and domestic air conditioning | |
| CN2765373Y (en) | Combined bearing magnetic suspension motor / electric main shaft | |
| CN201167264Y (en) | Permanent magnetic levitation electric principal shaft | |
| CN110486382B (en) | Radial-axial permanent magnetic bearing system device | |
| CN210297420U (en) | Magnetic suspension motor bearing for two-for-one twister | |
| CN201956795U (en) | Flywheel energy storage device | |
| CN2899251Y (en) | Super-high-speed electric spindle with multiple bearing support | |
| CN110401293B (en) | Magnetic suspension motor bearing for two-for-one twister | |
| CN203796751U (en) | Magnetic bearing | |
| CN210978220U (en) | Rotor bearing structure with adjustable permanent magnetic suspension bearing | |
| CN109681525B (en) | Magnetic suspension bearing and motor | |
| CN203871963U (en) | High-speed electric main shaft applying permanent magnet to replace bearing | |
| CN103047280A (en) | Novel rolling bearing structure | |
| CN201810592U (en) | High-power magnetic drive pump thrust structure | |
| CN102122860A (en) | Flywheel energy storage device | |
| CN110748564B (en) | Spinning cup supporting structure with adjustable permanent magnet magnetic suspension bearing | |
| CN201187529Y (en) | Magnetic slide bearing | |
| CN212360201U (en) | Same-direction sequence impeller arrangement non-cantilever type magnetic force driving pump | |
| CN200982347Y (en) | Permanent-magnet suspension bearing | |
| CN209278336U (en) | A kind of radial and axial protection structure of magnetic suspension bearing | |
| CN106712365A (en) | Combined bearing magnetic suspension motor/electric spindle | |
| CN112974867A (en) | Air floatation electric spindle and drilling machine | |
| CN219101860U (en) | Bearing and outer rotor fan with same | |
| CN206694406U (en) | A kind of permanent magnetic suspending shaft bearing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20200410 Effective date of abandoning: 20240315 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20200410 Effective date of abandoning: 20240315 |