CN110670183B - Mixed magnetic suspension bearing for driving spindle of rotor ultra-high speed motor - Google Patents
Mixed magnetic suspension bearing for driving spindle of rotor ultra-high speed motor Download PDFInfo
- Publication number
- CN110670183B CN110670183B CN201911145932.4A CN201911145932A CN110670183B CN 110670183 B CN110670183 B CN 110670183B CN 201911145932 A CN201911145932 A CN 201911145932A CN 110670183 B CN110670183 B CN 110670183B
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- axial
- magnetic ring
- spindle
- ring
- radial
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- 239000000725 suspension Substances 0.000 title claims abstract description 25
- 230000007704 transition Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 4
- 238000005299 abrasion Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005339 levitation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000007383 open-end spinning Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
- D01H4/04—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques imparting twist by contact of fibres with a running surface
- D01H4/08—Rotor spinning, i.e. the running surface being provided by a rotor
- D01H4/12—Rotor bearings; Arrangements for driving or stopping
- D01H4/14—Rotor driven by an electric motor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
A mixed magnetic suspension bearing for driving a spindle of a rotor ultra-high speed motor belongs to the technical field of bearings, structurally comprises an upper structure and a lower structure which are arranged on the spindle, is novel in structure, is electrified, a radial upper magnetic ring and a radial lower magnetic ring generate a rotating magnetic field and act on the spindle of the motor to form magneto-electric power rotating torque, the spindle starts to radially float and rotate, the spindle is axially formed by an axial first upper magnetic ring, an axial first lower magnetic ring, an axial second upper magnetic ring and an axial second lower magnetic ring to generate a magnetic field, the changing magnetic field generates axial acting force on the spindle of the motor, so that the spindle of the motor is suspended, the magnetic field of the axial first upper magnetic ring and the axial first lower magnetic ring can be adjusted through coils, the axial suspension of the spindle of the motor is controlled, and the effect of external force of the spindle is balanced. The invention changes the sliding friction of the spindle of the rotor high-speed motor into air friction, reduces friction force, improves rotating speed, and improves the rotating speed of the spindle to tens of thousands to hundreds of thousands of revolutions.
Description
Technical Field
The invention belongs to the technical field of bearings, relates to a magnetic suspension bearing structure, and particularly relates to a hybrid magnetic suspension bearing for driving a spindle of a rotor ultra-high speed motor.
Background
The bearing is taken as an important part in modern mechanical equipment, the main function plays roles of supporting and reducing friction, meanwhile, the rotation precision of the bearing is guaranteed, and the bearing industry is always the basic industry of manufacturing industry and is also an important component part of the manufacturing industry of national important equipment and precision equipment. With the development of magnetic levitation technology in recent years, it also has wide application in the field of bearings, the market share is also large. The common high-speed bearing has the advantages that: the precision is high, the surface roughness is small, the gap is small, and the volume is small; the defects are that: the high-speed bearing has serious abrasion, high working temperature when the load is large, high failure rate, short service life and large power consumption; the corresponding magnetic suspension bearing has a series of characteristics of no friction, low noise, environmental protection, high rotating speed and the like, and has great development prospect and high economic value. The main shaft is automatically suspended by the motor to realize stable friction-free operation, and the speed of tens of thousands or hundreds of thousands of revolutions can be achieved without lubrication. At present, most of the bearings of textile motors used in textile industry adopt contact bearings, the contact surfaces are worn seriously, the adjusting precision and the sensitivity are not high, the structural size is large, the rotating speed is low, and the current higher and higher rotating speed requirements cannot be met.
Disclosure of Invention
Aiming at the defects of low rotating speed, low adjusting precision, large noise, serious abrasion and the like of a main shaft bearing of the existing rotor spinning motor, the invention provides a mixed magnetic suspension bearing for driving a main shaft of a rotor super-high speed motor, which enables the axial direction and the radial direction to form a symmetrical structure, can reduce the volume of the whole structure, is more convenient for adjusting the position of the main shaft of the motor, can achieve the effect of balancing the external force applied to the main shaft of the motor, and can enable the main shaft of the motor to work more stably and at a high speed.
The technical scheme of the invention is as follows: the mixed magnetic suspension bearing for driving the spindle of the rotor super-speed motor comprises a spindle connected with the rotor motor; the method is characterized in that: the mixed magnetic suspension bearing consists of an upper structure and a lower structure which are arranged on the main shaft;
the upper structure is formed by connecting a radial upper magnetic ring, an axial first upper magnetic ring, an upper hoop, an axial first lower magnetic ring, a coil and an axial coil seat, wherein a convex ring is arranged at the upper part of the main shaft, the axial first upper magnetic ring is arranged at the left side of the convex ring, the axial first upper magnetic ring is arranged on the outer circumference of the convex ring, the outer side of the axial first upper magnetic ring is provided with the upper hoop, the axial coil seat is arranged at the right side of the convex ring, the coil is arranged in the axial coil seat, the inner side of the coil is provided with the axial first lower magnetic ring, and an axial gap is formed between the axial first upper magnetic ring and the axial first lower magnetic ring;
the lower structure is formed by connecting a motor cover, an axial second upper magnetic ring, an axial second lower magnetic ring, a lower hoop ring and a radial lower magnetic ring; the lower part of main shaft is equipped with the bulge loop, be equipped with the second of axial on the outer circumference of bulge loop and go down the magnetic ring, the outside of magnetic ring is equipped with down the hoop under the second of axial, the second of axial goes up the magnetic ring setting in the left side of bulge loop, the motor cover sets up the left side of magnetic ring on the second of axial, the magnetic ring setting is on the right side of bulge loop under the radial, form axial clearance under the second of axial on magnetic ring and the axial, form axial clearance under the magnetic ring and the radial between the magnetic ring under the second of axial.
The main shaft and the radial upper magnetic ring form clearance fit, and the main shaft and the radial lower magnetic ring form clearance fit.
The axial first upper magnetic ring and the upper convex ring of the main shaft form transition fit; the second lower axial magnetic ring is in transition fit with the convex ring at the lower part of the main shaft.
The outer diameter of the axial coil seat is equal to the outer diameter of the motor cover.
The specifications of the radial upper magnetic ring and the radial lower magnetic ring are the same.
The beneficial effects of the invention are as follows: the invention provides a mixed magnetic suspension bearing for driving a spindle of a rotor super-high speed motor, which structurally comprises an upper structure and a lower structure which are arranged on the spindle, and is novel in structure, a motor is electrified, a radial upper magnetic ring and a radial lower magnetic ring generate a rotating magnetic field and act on the motor spindle to form magneto-electric power rotating torque, the spindle starts to radially float and rotate, the spindle axially comprises an axial first upper magnetic ring, an axial first lower magnetic ring, an axial second upper magnetic ring and an axial second lower magnetic ring to generate a magnetic field, the changing magnetic field generates axial acting force on the motor spindle part, so that the motor spindle part is suspended, the magnetic field sizes of the axial first upper magnetic ring and the axial first lower magnetic ring can be adjusted through coils, the axial suspension of the motor spindle part is controlled, and the effect of external force is balanced. The application of the permanent magnet bearing in the invention changes the sliding friction of the spindle of the rotor high-speed motor into air friction, reduces friction force, improves rotating speed, and improves the rotating speed of the spindle to tens of thousands to hundreds of thousands of revolutions.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention.
In the figure: the device comprises a main shaft 1, a radial upper magnetic ring 2, an upper hoop ring 3, an axial first upper magnetic ring 4, an axial first lower magnetic ring 5, a coil 6, an axial coil base 7, a motor cover 8, an axial second upper magnetic ring 9, an axial second lower magnetic ring 10, a lower hoop ring 11 and a radial lower magnetic ring 12.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
as shown in fig. 1, the hybrid magnetic suspension bearing for driving the spindle of the rotor super-speed motor comprises a spindle 1 connected with the rotor motor, and comprises an upper structure and a lower structure which are arranged on the spindle 1; the upper structure is formed by connecting a radial upper magnetic ring 2, an axial first upper magnetic ring 4, an upper hoop 3, an axial first lower magnetic ring 5, a coil 6 and an axial coil seat 7, wherein a convex ring is arranged at the upper part of the main shaft 1, the axial first upper magnetic ring 4 is arranged at the left side of the convex ring, the axial first upper magnetic ring 4 is arranged on the outer circumference of the convex ring, the upper hoop 3 is arranged at the outer side of the axial first upper magnetic ring 4, the axial coil seat 7 is arranged at the right side of the convex ring, a coil 6 is arranged in the axial coil seat 7, the axial first lower magnetic ring 5 is arranged at the inner side of the coil 6, and an axial gap is formed between the axial first upper magnetic ring 4 and the axial first lower magnetic ring 5; the lower structure is formed by connecting a motor cover 8, an axial second upper magnetic ring 9, an axial second lower magnetic ring 10, a lower hoop 11 and a radial lower magnetic ring 12; the lower part of the main shaft 1 is provided with a convex ring, the outer circumference of the convex ring is provided with an axial second lower magnetic ring 10, the outer side of the axial second lower magnetic ring 10 is provided with a lower hoop 11, the axial second upper magnetic ring 9 is arranged on the left side of the convex ring, the motor cover 8 is arranged on the left side of the axial second upper magnetic ring 9, the radial lower magnetic ring 12 is arranged on the right side of the convex ring, an axial gap is formed between the axial second upper magnetic ring 9 and the axial second lower magnetic ring 10, and an axial gap is formed between the axial second lower magnetic ring 10 and the radial lower magnetic ring 12.
As shown in fig. 1, a mixed magnetic suspension bearing for driving a spindle of a rotor ultra-high speed motor is provided, wherein a spindle 1 and a radial upper magnetic ring 2 form clearance fit, and the spindle 1 and a radial lower magnetic ring 12 form clearance fit; the axial first upper magnetic ring 4 is in transition fit with the convex ring at the upper part of the main shaft; the second lower axial magnetic ring 10 is in transition fit with a convex ring at the lower part of the main shaft; the outer diameter of the axial coil seat 7 is equal to the outer diameter of the motor cover 8; the radial upper magnetic ring 2 has the same specification as the radial lower magnetic ring 12.
As shown in figure 1, the hybrid magnetic suspension bearing for driving the spindle of the rotor ultra-high speed motor is powered on, the radial upper magnetic ring and the radial lower magnetic ring generate a rotating magnetic field and act on the spindle of the motor to form magneto-electric power rotating torque, the spindle part of the motor starts to radially float and rotate, the first group of the hybrid magnetic suspension bearing is axially controlled by two groups of permanent magnetic bearings, the first group of the hybrid magnetic suspension bearing consists of an axial first upper magnetic ring and an axial first lower magnetic ring, the second group of the hybrid magnetic suspension bearing consists of an axial second upper magnetic ring and an axial second lower magnetic ring, a magnetic field is generated, the changing magnetic field generates axial acting force on the spindle part of the motor, so that the spindle part of the motor is levitated, the magnitudes of the magnetic fields of the axial first upper magnetic ring and the axial first lower magnetic ring can be adjusted through coils, so that the axial levitation of the spindle part of the motor is controlled, and the effect of external force of the hybrid magnetic suspension bearing is balanced. The application of the permanent magnet bearing in the invention changes the sliding friction of the spindle of the rotor high-speed motor into air friction, reduces friction force, improves rotating speed, and improves the rotating speed of the spindle to tens of thousands to hundreds of thousands of revolutions.
Claims (5)
1. The mixed magnetic suspension bearing for driving the spindle of the rotor super-speed motor comprises a spindle (1) connected with the rotor motor; the method is characterized in that: the mixed magnetic suspension bearing consists of an upper structure and a lower structure which are arranged on the main shaft (1);
the upper structure is formed by connecting a radial upper magnetic ring (2), an axial first upper magnetic ring (4), an upper hoop ring (3), an axial first lower magnetic ring (5), a coil (6) and an axial coil seat (7), wherein the upper part of the main shaft (1) is provided with a convex ring, the axial first upper magnetic ring (4) is arranged on the left side of the convex ring, the axial first upper magnetic ring (4) is arranged on the outer circumference of the convex ring, the outer side of the axial first upper magnetic ring (4) is provided with the upper hoop ring (3), the axial coil seat (7) is arranged on the right side of the convex ring, the coil (6) is arranged in the axial coil seat (7), the inner side of the coil (6) is provided with the axial first lower magnetic ring (5), and an axial gap is formed between the axial first upper magnetic ring (4) and the axial first lower magnetic ring (5).
The lower structure is formed by connecting a motor cover (8), an axial second upper magnetic ring (9), an axial second lower magnetic ring (10), a lower hoop (11) and a radial lower magnetic ring (12); the lower part of main shaft (1) is equipped with the bulge loop, be equipped with magnetic ring (10) under the axial second on the outer circumference of bulge loop, the outside of magnetic ring (10) is equipped with down hoop (11) under the axial second, magnetic ring (9) set up in the left side of bulge loop on the axial second, motor cover (8) set up in the left side of magnetic ring (9) on the axial second, magnetic ring (12) set up in the right side of bulge loop under the radial, form axial clearance under the axial second between magnetic ring (9) and the magnetic ring (10) under the axial second, form axial clearance under the axial second between magnetic ring (10) and the radial magnetic ring (12).
2. The hybrid magnetic suspension bearing for driving a spindle of a rotor ultra-high speed motor according to claim 1, wherein: the main shaft (1) and the radial upper magnetic ring (2) form clearance fit, and the main shaft (1) and the radial lower magnetic ring (12) form clearance fit.
3. The hybrid magnetic suspension bearing for driving a spindle of a rotor ultra-high speed motor according to claim 1, wherein: the axial first upper magnetic ring (4) is in transition fit with the convex ring at the upper part of the main shaft; the second lower magnetic ring (10) is in transition fit with the convex ring at the lower part of the main shaft.
4. The hybrid magnetic suspension bearing for driving a spindle of a rotor ultra-high speed motor according to claim 1, wherein: the outer diameter of the axial coil seat (7) is equal to the outer diameter of the motor cover (8).
5. The hybrid magnetic suspension bearing for driving a spindle of a rotor ultra-high speed motor according to claim 1, wherein: the specifications of the radial upper magnetic ring (2) and the radial lower magnetic ring (12) are the same.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911145932.4A CN110670183B (en) | 2019-11-21 | 2019-11-21 | Mixed magnetic suspension bearing for driving spindle of rotor ultra-high speed motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911145932.4A CN110670183B (en) | 2019-11-21 | 2019-11-21 | Mixed magnetic suspension bearing for driving spindle of rotor ultra-high speed motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110670183A CN110670183A (en) | 2020-01-10 |
| CN110670183B true CN110670183B (en) | 2024-04-02 |
Family
ID=69088148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911145932.4A Active CN110670183B (en) | 2019-11-21 | 2019-11-21 | Mixed magnetic suspension bearing for driving spindle of rotor ultra-high speed motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110670183B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118646209B (en) * | 2024-08-09 | 2024-12-24 | 杭州昆泰磁悬浮技术有限公司 | Open-end spinning motor and open-end spinning machine |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1485290A (en) * | 1974-01-14 | 1977-09-08 | Sperry Rand Corp | Magnetic bearing apparatus |
| JPH08193622A (en) * | 1995-01-12 | 1996-07-30 | Fuji Xerox Co Ltd | Magnetic bearing device |
| US6703735B1 (en) * | 2001-11-02 | 2004-03-09 | Indigo Energy, Inc. | Active magnetic thrust bearing |
| CN102042302A (en) * | 2009-10-09 | 2011-05-04 | 卓向东 | High-speed hybrid magnetic suspension bearing |
| CN103334187A (en) * | 2013-07-25 | 2013-10-02 | 上海淳瑞机械科技有限公司 | A kind of spinning organ of bleeder rotor spinning machine |
| CN203451701U (en) * | 2013-08-13 | 2014-02-26 | 东华大学 | Spinning frame motor type spindle adopting extending magnetic suspension structure |
| CN206289350U (en) * | 2016-12-22 | 2017-06-30 | 卓郎（江苏）纺织机械有限公司 | A kind of rotor spinning machine for improving negative pressure system |
| CN110224540A (en) * | 2019-06-13 | 2019-09-10 | 扬州大学 | A kind of permanent magnetism eckband motor |
| CN110453322A (en) * | 2019-08-29 | 2019-11-15 | 扬州大学 | A Separate Permanent Magnetic Suspension Bearing Structure for Spinning Spindle |
| CN211142279U (en) * | 2019-11-21 | 2020-07-31 | 扬州大学 | Mixed magnetic suspension bearing for driving spindle of rotor ultra-high-speed motor |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3949916B2 (en) * | 2001-09-26 | 2007-07-25 | 日本電産サンキョー株式会社 | Magnetic levitation motor and magnetic bearing device |
| US20050253473A1 (en) * | 2004-05-13 | 2005-11-17 | Studer Philip A | Alternative magnetic bearing |
-
2019
- 2019-11-21 CN CN201911145932.4A patent/CN110670183B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1485290A (en) * | 1974-01-14 | 1977-09-08 | Sperry Rand Corp | Magnetic bearing apparatus |
| JPH08193622A (en) * | 1995-01-12 | 1996-07-30 | Fuji Xerox Co Ltd | Magnetic bearing device |
| US6703735B1 (en) * | 2001-11-02 | 2004-03-09 | Indigo Energy, Inc. | Active magnetic thrust bearing |
| CN102042302A (en) * | 2009-10-09 | 2011-05-04 | 卓向东 | High-speed hybrid magnetic suspension bearing |
| CN103334187A (en) * | 2013-07-25 | 2013-10-02 | 上海淳瑞机械科技有限公司 | A kind of spinning organ of bleeder rotor spinning machine |
| CN203451701U (en) * | 2013-08-13 | 2014-02-26 | 东华大学 | Spinning frame motor type spindle adopting extending magnetic suspension structure |
| CN206289350U (en) * | 2016-12-22 | 2017-06-30 | 卓郎（江苏）纺织机械有限公司 | A kind of rotor spinning machine for improving negative pressure system |
| CN110224540A (en) * | 2019-06-13 | 2019-09-10 | 扬州大学 | A kind of permanent magnetism eckband motor |
| CN110453322A (en) * | 2019-08-29 | 2019-11-15 | 扬州大学 | A Separate Permanent Magnetic Suspension Bearing Structure for Spinning Spindle |
| CN211142279U (en) * | 2019-11-21 | 2020-07-31 | 扬州大学 | Mixed magnetic suspension bearing for driving spindle of rotor ultra-high-speed motor |
Non-Patent Citations (1)
| Title |
|---|
| 朱军等.磁悬浮电动机径向永磁轴承的建模和悬浮性能研究.《科技创新与应用》.2018,(第2期),1-4，6. * |
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| Publication number | Publication date |
|---|---|
| CN110670183A (en) | 2020-01-10 |
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