CN108054850A - A kind of thrust disc fixed structure in magnetic suspension motor rotor - Google Patents
A kind of thrust disc fixed structure in magnetic suspension motor rotor Download PDFInfo
- Publication number
- CN108054850A CN108054850A CN201711452958.4A CN201711452958A CN108054850A CN 108054850 A CN108054850 A CN 108054850A CN 201711452958 A CN201711452958 A CN 201711452958A CN 108054850 A CN108054850 A CN 108054850A
- Authority
- CN
- China
- Prior art keywords
- thrust disc
- bearing
- thrust
- top cover
- mandrel
- 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 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 229910001104 4140 steel Inorganic materials 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 5
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 2
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/08—Structural association with bearings
- H02K7/09—Structural association with bearings with magnetic bearings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2205/00—Specific aspects not provided for in the other groups of this subclass relating to casings, enclosures, supports
- H02K2205/03—Machines characterised by thrust bearings
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Support Of The Bearing (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
The invention discloses the thrust disc fixed structures in a kind of magnetic suspension motor rotor, thrust disc and thrust disc are fixed top cover and are sheathed on mandrel, and thrust disc, thrust disc are fixed between top cover and mandrel and are interference fitted, thrust disc is fixed top cover and is contacted on thrust disc, thrust disc is contacted on mandrel, and one end of thrust disc is placed between lifting force magnetic bearing and lower thrust magnetic bearing；Axle sleeve and bearing (ball) cover are sheathed on mandrel, and shaft end screw thread is connected to core the tip of the axis, and shaft end screw is contacted on bearing (ball) cover, and bearing (ball) cover is contacted on axle sleeve, and axle sleeve contacts at thrust disc and fixes in top cover.The configuration of the present invention is simple, thrust disc is fixed top cover using the material different from thrust disc, is assemblied in using elastic conjunction technique on mandrel, in the environment of eccentricity at high speed and thermal expansion can be avoided, the phenomenon that interference volume disappears.Thrust disc is withstood using thrust disc fixing sleeve, can avoid thrust disc that axial transmission occurs, damage thrust magnetic bearing.
Description
Technical field：
The present invention relates to the thrust disc fixed structures in a kind of magnetic suspension motor rotor.
Background technology：
In existing magnetcisuspension floating centrifugal motor, the parts thereof in rotor part uses elastic conjunction technique, such as
Thrust disc.The rotating speed of magnetic suspension motor is higher, generally in more than 20000r/min, due to the particularity of thrust disk material, in height
In the environment of rotating speed eccentricity and thermal expansion, the interference volume of thrust disc will disappear, using there are security risks.
The content of the invention：
The present invention is to provide pushing away in a kind of magnetic suspension motor rotor to solve the above-mentioned problems of the prior art
Power disk fixed structure.
The technical solution adopted in the present invention has：Thrust disc fixed structure in a kind of magnetic suspension motor rotor, including magnetic
Bearing block, mandrel, radial direction magnetic bearing, lifting force magnetic bearing and lower thrust magnetic bearing, the radial direction magnetic bearing, lifting force magnetic bearing
It is both secured to lower thrust magnetic bearing in magnetic axis bearing, mandrel is supported on radial direction magnetic bearing, lifting force magnetic bearing and lower thrust magnetic
In bearing, thrust disc is further included, thrust disc fixes top cover, axle sleeve, bearing (ball) cover and shaft end screw, the thrust disc and thrust disc
Fixed top cover is sheathed on mandrel, and thrust disc, thrust disc are fixed between top cover and mandrel and be interference fitted, and thrust disc is fixed
Top cover is contacted on thrust disc, and thrust disc is contacted on mandrel, and one end of thrust disc is placed in lifting force magnetic bearing and lower thrust magnetic
Between bearing；
Axle sleeve and bearing (ball) cover are sheathed on mandrel, and shaft end screw thread is connected to core the tip of the axis, and shaft end screw
It contacts on bearing (ball) cover, bearing (ball) cover is contacted on axle sleeve, and axle sleeve contacts at thrust disc and fixes in top cover；
The thrust disc is fixed top cover and is made of No. 4140 steel.
The thrust disc is made of pure iron.
Further, it is T shape that the thrust disc, which fixes top cover,.
Further, the side wall of the axle sleeve upper port extends outwardly and forms positioning side, which contacts at thrust
Disk is fixed in top cover.
Further, the axis direction of the bearing (ball) cover is equipped with stepped hole, and the upper surface of bearing (ball) cover is equipped with boss
Portion.
The present invention has the advantages that：The configuration of the present invention is simple, thrust disc fix top cover using different from thrust disc
Material, be assemblied in using elastic conjunction technique on mandrel, in the environment of eccentricity at high speed and thermal expansion can be avoided,
The phenomenon that interference volume disappears.Thrust disc is withstood using thrust disc fixing sleeve, can avoid thrust disc that axial transmission occurs, damage pushes away
Power magnetic bearing.
Description of the drawings：
Fig. 1 is structure chart of the present invention.
Fig. 2 is the structure chart of thrust disc in the present invention, thrust disc fixation top cover, axle sleeve and bearing (ball) cover.
Specific embodiment：
The present invention is further illustrated below in conjunction with the accompanying drawings.
Such as Fig. 1 and Fig. 2, the present invention discloses the thrust disc fixed structure in a kind of magnetic suspension motor rotor, including magnetic bearing
Seat 1, mandrel 2, radial direction magnetic bearing 3, lifting force magnetic bearing 4, lower thrust magnetic bearing 5, thrust disc 6, thrust disc fix top cover 7, axis
Set 8, bearing (ball) cover 9 and shaft end screw 10, radial direction magnetic bearing 3, lifting force magnetic bearing 4 and lower thrust magnetic bearing 5 are both secured to magnetic
In bearing block 1, mandrel 2 is supported in radial direction magnetic bearing 3, lifting force magnetic bearing 4 and lower thrust magnetic bearing 5, thrust disc 6 and thrust
Disk is fixed top cover 7 and is sheathed on mandrel 2, and thrust disc 6, thrust disc are fixed between top cover 7 and mandrel 2 and be interference fitted, and are pushed away
Power disk is fixed top cover 7 and is contacted on thrust disc 6, and thrust disc 6 is contacted on radial direction magnetic bearing 3, and one end of thrust disc 6, which is placed in, to push away
Between power magnetic bearing 4 and lower thrust magnetic bearing 5.Axle sleeve 8 and bearing (ball) cover 9 are sheathed on mandrel 2, and screw 10 screw thread in shaft end connects
The end of mandrel 2 is connected on, and shaft end screw 10 is contacted on bearing (ball) cover 9, bearing (ball) cover 9 is contacted on axle sleeve 8, and axle sleeve 8 supports
It touches and is fixed in thrust disc in top cover 7, thrust disc fixes top cover 7 and contacts at thrust disc 6 on mandrel 2.
Thrust disc is fixed top cover 7 and is made of No. 4140 steel, and thrust disc 6 is made of pure iron.Thrust disc fixes top cover 7
Interference volume is more than the interference volume of thrust disc 6.During magnetic suspension motor high-speed rotation, top cover 7 is fixed due to thrust disc and is used
Different materials is used from thrust disc 6, thrust disc, which fixes top cover 7, to carry out axial limiting to thrust disc 6, avoid in high rotating speed
In the environment of lower eccentricity and thermal expansion, thrust disc 6 due to interference volume disappears and the phenomenon that move axially.
Thrust disc 6 in the present invention is an integral structure, and including a body 61, the axis direction of the body 61 is equipped with axis
Hole, the outer circle wall of 61 lower port of body extend outward to form disk body 63, which is placed in lifting force magnetic bearing 4 and lower thrust
Between magnetic bearing 5, the outer circle wall of 61 upper port of body, which extends outward to form, contradicts side 62.It contradicts side 62 and contacts at radial direction magnetic axis
It holds on 3, conflict side 62 increases the contact area between radial direction magnetic bearing 3.6 structure of integral type thrust disc reduces part, processing
It is convenient, it can also simplify assembly technology.
It is T shape that thrust disc, which fixes top cover 7,.The side wall of 8 upper port of axle sleeve, which extends outwardly and formed, positions side 81, the positioning
Side 81 contacts at thrust disc and fixes in top cover 7.
The axis direction of bearing (ball) cover 9 is equipped with stepped hole 90, and the upper surface of bearing (ball) cover 9 is equipped with boss portion 91.Boss
The bearing surface in portion 91 is contacted on axle sleeve 8, and the step surface of stepped hole 90 is contacted on the end face of mandrel 2.
The configuration of the present invention is simple, thrust disc fix top cover 7 and use the material different from thrust disc 6, use elastic conjunction work
Skill is assemblied on mandrel 2, in the environment of eccentricity at high speed and thermal expansion can be avoided, interference volume disappear the phenomenon that.Make
Thrust disc is withstood with thrust disc fixing sleeve, can avoid thrust disc that axial transmission occurs, damage thrust magnetic bearing.
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, several 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 (4)
1. a kind of thrust disc fixed structure in magnetic suspension motor rotor, including magnetic axis bearing (1), mandrel (2), radial direction magnetic bearing
(3), lifting force magnetic bearing (4) and lower thrust magnetic bearing (5), the radial direction magnetic bearing (3), lifting force magnetic bearing (4) and under push away
Power magnetic bearing (5) is both secured in magnetic axis bearing (1), mandrel (2) be supported on radial direction magnetic bearing (3), lifting force magnetic bearing (4) and
In lower thrust magnetic bearing (5), it is characterised in that：Further include thrust disc (6), thrust disc fixes top cover (7), axle sleeve (8), bearing end
(9) and shaft end screw (10) are covered, the thrust disc (6) and thrust disc are fixed top cover (7) and be sheathed on mandrel (2), and thrust
Disk (6), thrust disc are fixed between top cover (7) and mandrel (2) and are interference fitted, and thrust disc fixes top cover (7) and contacts at thrust disc
(6) on, thrust disc (6) is contacted on mandrel (2), and one end of thrust disc (6) is placed in lifting force magnetic bearing (4) and lower thrust magnetic axis
It holds between (5)；
Axle sleeve (8) and bearing (ball) cover (9) are sheathed on mandrel (2), and shaft end screw (10) is threaded in the end of mandrel (2)
End, and shaft end screw (10) is contacted on bearing (ball) cover (9), bearing (ball) cover (9) is contacted on axle sleeve (8), and axle sleeve (8) contacts at
Thrust disc is fixed in top cover (7)；
The thrust disc is fixed top cover (7) and is made of No. 4140 steel.
The thrust disc (6) is made of pure iron.
2. the thrust disc fixed structure in magnetic suspension motor rotor as described in claim 1, it is characterised in that：The thrust disc
Fixed top cover (7) is T shape.
3. the thrust disc fixed structure in magnetic suspension motor rotor as described in claim 1, it is characterised in that：The axle sleeve
(8) side wall of upper port extends outwardly and forms positioning side (81), which contacts at thrust disc and fix top cover (7)
On.
4. the thrust disc fixed structure in magnetic suspension motor rotor as described in claim 1, it is characterised in that：The bearing end
The axis direction for covering (9) is equipped with stepped hole (90), and the upper surface of bearing (ball) cover (9) is equipped with boss portion (91).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711452958.4A CN108054850B (en) | 2017-12-28 | 2017-12-28 | Thrust disc fixing structure in magnetic suspension motor rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711452958.4A CN108054850B (en) | 2017-12-28 | 2017-12-28 | Thrust disc fixing structure in magnetic suspension motor rotor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108054850A true CN108054850A (en) | 2018-05-18 |
| CN108054850B CN108054850B (en) | 2024-03-15 |
Family
ID=62128393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711452958.4A Active CN108054850B (en) | 2017-12-28 | 2017-12-28 | Thrust disc fixing structure in magnetic suspension motor rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108054850B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001214935A (en) * | 2000-01-31 | 2001-08-10 | Shibaura Mechatronics Corp | Magnetic bearing motor |
| CN201113654Y (en) * | 2007-07-18 | 2008-09-10 | 重庆德马变频电机研发制造有限公司 | Magnetic suspension bearing electric motor |
| CN105864291A (en) * | 2016-05-05 | 2016-08-17 | 珠海格力电器股份有限公司 | Magnetic suspension bearing, supporting device and motor assembly |
| US20160322882A1 (en) * | 2015-04-29 | 2016-11-03 | Skf Magnetic Mechatronics | Rotary machine |
| CN106505780A (en) * | 2016-12-15 | 2017-03-15 | 南通金驰机电有限公司 | A kind of magnetic suspension permanent magnet direct-drive high-speed motor |
| CN207719933U (en) * | 2017-12-28 | 2018-08-10 | 南京磁谷科技有限公司 | A kind of thrust disc fixed structure in magnetic suspension motor rotor |
-
2017
- 2017-12-28 CN CN201711452958.4A patent/CN108054850B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001214935A (en) * | 2000-01-31 | 2001-08-10 | Shibaura Mechatronics Corp | Magnetic bearing motor |
| CN201113654Y (en) * | 2007-07-18 | 2008-09-10 | 重庆德马变频电机研发制造有限公司 | Magnetic suspension bearing electric motor |
| US20160322882A1 (en) * | 2015-04-29 | 2016-11-03 | Skf Magnetic Mechatronics | Rotary machine |
| CN105864291A (en) * | 2016-05-05 | 2016-08-17 | 珠海格力电器股份有限公司 | Magnetic suspension bearing, supporting device and motor assembly |
| CN106505780A (en) * | 2016-12-15 | 2017-03-15 | 南通金驰机电有限公司 | A kind of magnetic suspension permanent magnet direct-drive high-speed motor |
| CN207719933U (en) * | 2017-12-28 | 2018-08-10 | 南京磁谷科技有限公司 | A kind of thrust disc fixed structure in magnetic suspension motor rotor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108054850B (en) | 2024-03-15 |
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Address after: 211102 No. 100 Jiuzhu Road, Jiangning Development Zone, Nanjing, Jiangsu Province Patentee after: Nanjing Cigu Technology Co.,Ltd. Country or region after: Zhong Guo Address before: 211102 No. 100 Jiuzhu Road, Jiangning Development Zone, Nanjing, Jiangsu Province Patentee before: NANJING CIGU Ltd.,Corp. Country or region before: Zhong Guo |
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