CN107327488B - Mounting base for magnetic pole in inclined magnetic bearing - Google Patents
Mounting base for magnetic pole in inclined magnetic bearing Download PDFInfo
- Publication number
- CN107327488B CN107327488B CN201710755371.4A CN201710755371A CN107327488B CN 107327488 B CN107327488 B CN 107327488B CN 201710755371 A CN201710755371 A CN 201710755371A CN 107327488 B CN107327488 B CN 107327488B
- Authority
- CN
- China
- Prior art keywords
- magnetic pole
- pressing plate
- magnetic bearing
- magnetic
- iron core
- 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.)
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Links
- 208000010727 head pressing Diseases 0.000 claims abstract description 12
- 238000009434 installation Methods 0.000 claims abstract description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 14
- 230000000149 penetrating effect Effects 0.000 claims 1
- 229910000976 Electrical steel Inorganic materials 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
Images
Classifications
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C32/00—Bearings not otherwise provided for
- F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
- F16C32/0406—Magnetic bearings
- F16C32/044—Active magnetic bearings
- F16C32/0459—Details of the magnetic circuit
- F16C32/0461—Details of the magnetic circuit of stationary parts of the magnetic circuit
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2226/00—Joining parts; Fastening; Assembling or mounting parts
- F16C2226/50—Positive connections
- F16C2226/62—Positive connections with pins, bolts or dowels
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Motor Or Generator Frames (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention discloses a mounting seat for inclining a magnetic pole in a magnetic bearing, which comprises a magnetic bearing base, a head pressing plate and a tail pressing plate, wherein the magnetic bearing base is provided with a shaft hole, the upper end surface of the magnetic bearing base is uniformly provided with four inclined grooves in the circumferential direction of the shaft hole, and the head pressing plate and the tail pressing plate are fixedly connected on the side walls of the inclined grooves through screws. The mounting seat has the advantages of simple structure, less parts and simple and convenient installation, and the circular seat part can conveniently perform cylindrical surface centering and axial positioning with the inner hole of the motor shell; the circular table portion facilitates installation of the inclined U-shaped magnetic pole core.
Description
The technical field is as follows:
the present invention relates to a mount for tilting magnetic poles in a magnetic bearing.
Background art:
the magnetic poles of the ordinary radial magnetic bearing are mostly of a plane laminated structure (as shown in fig. 5) similar to a motor stator, that is, silicon steel sheet punching sheets 800 with the same shape are horizontally laminated to form a whole magnetic pole, a coil 810 is wound on the silicon steel sheet punching sheets 800, and the magnetic poles of the magnetic bearing are flat cylinders, so that the magnetic bearing can be of a structure which is centered by a cylindrical surface and pressed by an end face, which is commonly used in a rotating machine. However, the four magnetic poles of the magnetic bearing with oblique magnetic poles are arranged in a quadrangular pyramid shape, so that the structure of cylindrical surface centering and end surface pressing cannot be used for installing the magnetic poles of the magnetic bearing with oblique magnetic poles, and therefore, a mounting seat suitable for the magnetic poles in the magnetic bearing with oblique magnetic poles is required to be provided.
The invention content is as follows:
the present invention has been made to solve the above-mentioned problems occurring in the prior art, and an object of the present invention is to provide a mount for tilting a magnetic pole in a magnetic bearing.
The technical scheme adopted by the invention is as follows: a mounting base for inclining a magnetic pole in a magnetic bearing comprises a magnetic bearing base, a head pressing plate and a tail pressing plate, wherein a shaft hole is formed in the magnetic bearing base, four inclined grooves are uniformly formed in the upper end face of the magnetic bearing base and located in the circumferential direction of the shaft hole, and the head pressing plate and the tail pressing plate are fixedly connected to the side walls of the inclined grooves through screws;
the magnetic bearing base comprises a circular seat portion and a circular table portion which are integrally formed, the diameter of the circular table portion is smaller than that of the circular seat portion, the inclined groove is formed in the circular table portion, and the bottom of the inclined groove extends to the circular seat portion.
Further, the inclined groove has an inclination angle of 30 to 60 ° with respect to the axis of the shaft hole.
Furthermore, a limiting groove is arranged in the inclined groove.
Furthermore, the tail pressing plate comprises a first connecting portion, a second connecting portion and a limiting portion which are integrally formed, the limiting portion and the second connecting portion are perpendicularly arranged on two sides of the first connecting portion, the first connecting portion and the second connecting portion are fixedly connected onto the side wall of the inclined groove through screws, and the limiting portion is inserted between two side edges of the U-shaped magnetic pole iron core.
The invention has the following beneficial effects:
1) The mounting seat has the advantages of simple structure, small number of parts and simple and convenient installation, and the circular seat part can conveniently perform cylindrical surface centering and axial positioning with the inner hole of the motor shell;
2) The circular truncated cone part is convenient for installing the inclined U-shaped magnetic pole iron core.
3) The processing surface in each inclined groove is a parallel surface or a vertical surface, so that each groove is processed only by clamping and positioning once on a milling machine, and the processing is more convenient.
Description of the drawings:
FIG. 1 is a three-dimensional structure of the present invention.
FIG. 2 is a plan view of the present invention.
Fig. 3 and 4 are structural views illustrating the application of magnetic poles in the fixed-pitch magnetic bearing according to the present invention.
Fig. 5 is a view illustrating a structure of mounting magnetic poles of a magnetic bearing according to the related art.
The specific implementation mode is as follows:
the invention will be further described with reference to the accompanying drawings.
As shown in fig. 1 and 2, the present invention discloses a mounting base for tilting a magnetic pole in a magnetic bearing, which includes a magnetic bearing base 41, a head pressing plate 44 and a tail pressing plate 45, wherein the magnetic bearing base 41 is provided with a shaft hole 410, four tilting grooves 411 are uniformly arranged on the upper end surface of the magnetic bearing base 41 and in the circumferential direction of the shaft hole 410, and the head pressing plate 44 and the tail pressing plate 45 are both fixedly connected to the side walls of the tilting grooves 411 by screws.
The inclined groove 411 has an inclination angle of 30 to 60 with respect to the axis of the shaft hole 410.
Referring to fig. 3 and 4, the magnetic pole of the magnetic tilt bearing includes a U-shaped magnetic pole core 42 and a magnetic pole coil 43, and the two magnetic pole coils 43 are respectively disposed on two sides of the U-shaped magnetic pole core 42. When the inclined magnetic bearing is installed in the installation seat of the invention, the U-shaped magnetic pole iron core 42 is firstly arranged in the inclined groove 411, the magnetic pole surfaces of two side edges of the U-shaped magnetic pole iron core 42 extend into the shaft hole 410, the head pressing plate 44 and the tail pressing plate 45 are fixedly connected on the side wall of the inclined groove 411 through screws, the U-shaped magnetic pole iron core 42 is fixed in the inclined groove 411, the head pressing plate 44 and the tail pressing plate 45 are positioned at the upper side and the lower side of the magnetic pole coil 43, and the magnetic pole coil 43 is positioned on the U-shaped magnetic pole iron core 42.
The magnetic bearing base 41 includes a circular seat portion 418 and a circular table portion 419 formed integrally, the circular table portion 419 has a diameter smaller than that of the circular seat portion 418, the inclined groove 411 is provided on the circular table portion 419, and the bottom of the inclined groove 411 extends on the circular seat portion 418. The circular seat portion 418 can be conveniently matched with the inner hole of the motor shell for positioning; the circular truncated portion 419 facilitates mounting of the inclined U-shaped pole core 42.
In order to better position the pole coil 43 in the inclined groove 411, a limiting groove 4111 is provided in the inclined groove 411, and the bottom of the pole coil 43 is disposed in the limiting groove 4111.
The tail pressing plate 45 of the present invention includes a first connecting portion 451, a second connecting portion 452, and a limiting portion 453, which are integrally formed, the limiting portion 453 and the second connecting portion 452 are vertically disposed on two sides of the first connecting portion 451, the first connecting portion 451 and the second connecting portion 452 are fixedly connected to the sidewall of the inclined recess 411 by screws, and the limiting portion 453 is inserted between two side edges of the U-shaped magnetic pole core 42.
The screw holes in the tail pressure plate 45 are all kidney-shaped holes, so that the screw holes can be automatically adjusted in the process of screwing the screws, and the U-shaped pole core 42 is ensured to be stably installed in place.
The foregoing is only a preferred embodiment of this invention and it should be noted that modifications can be made by those skilled in the art without departing from the principle of the invention and these modifications should also be considered as the protection scope of the invention.
Claims (4)
1. A mount for canting magnetic poles in a magnetic bearing, comprising: the magnetic bearing comprises a magnetic bearing base (41), a head pressing plate (44) and a tail pressing plate (45), wherein a shaft hole (410) is formed in the magnetic bearing base (41), four inclined grooves (411) are uniformly formed in the upper end face of the magnetic bearing base (41) and located in the circumferential direction of the shaft hole (410), magnetic poles in the inclined magnetic bearing comprise a U-shaped magnetic pole iron core (42) and magnetic pole coils (43), the two magnetic pole coils (43) are respectively arranged on two side edges of the U-shaped magnetic pole iron core (42) in a penetrating mode, when the inclined magnetic bearing is installed in an installation seat, the U-shaped magnetic pole iron core (42) is firstly arranged in the inclined grooves (411), magnetic pole faces of the two side edges of the U-shaped magnetic pole iron core (42) extend into the shaft hole (410), the head pressing plate (44) and the tail pressing plate (45) are fixedly connected to the side walls of the inclined grooves (411) through screws, the U-shaped magnetic pole iron core (42) is fixed in the inclined grooves (411), the head pressing plate (44) and the tail pressing plate (45) are located on the upper side walls of the magnetic pole coils (43) and the U-shaped magnetic pole iron core (42) and the head pressing plate (44) and the tail pressing plate (45) are located on the two sides of the U-shaped magnetic pole iron core;
the magnetic bearing base (41) comprises a circular seat part (418) and a circular table part (419) which are integrally formed, the diameter of the circular table part (419) is smaller than that of the circular seat part (418), the inclined groove (411) is formed in the circular table part (419), and the bottom of the inclined groove (411) extends to the circular seat part (418).
2. The mount for tilting a magnetic pole in a magnetic bearing of claim 1 wherein: the inclined angle of the inclined groove (411) relative to the axial line of the shaft hole (410) is 30-60 degrees.
3. The mount for tilting a magnetic pole in a magnetic bearing of claim 1 wherein: a limiting groove (4111) is arranged in the inclined groove (411).
4. The mount for tilting a magnetic pole in a magnetic bearing as recited in claim 1, wherein: tail clamp plate (45) include integrated into one piece's first connecting portion (451), second connecting portion (452) and spacing portion (453), and the both sides of first connecting portion (451) are located perpendicularly to spacing portion (453) and second connecting portion (452), first connecting portion (451) and second connecting portion (452) pass through screw fixed connection on the lateral wall of slope recess (411), and spacing portion (453) are pegged graft between the both sides limit of U-shaped magnetic pole iron core (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710755371.4A CN107327488B (en) | 2017-08-29 | 2017-08-29 | Mounting base for magnetic pole in inclined magnetic bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710755371.4A CN107327488B (en) | 2017-08-29 | 2017-08-29 | Mounting base for magnetic pole in inclined magnetic bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107327488A CN107327488A (en) | 2017-11-07 |
| CN107327488B true CN107327488B (en) | 2023-03-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710755371.4A Active CN107327488B (en) | 2017-08-29 | 2017-08-29 | Mounting base for magnetic pole in inclined magnetic bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107327488B (en) |
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| CN103994104A (en) * | 2014-05-29 | 2014-08-20 | 南京磁谷科技有限公司 | Radial magnetic bearing tool |
| CN106438697A (en) * | 2016-11-21 | 2017-02-22 | 南京磁谷科技有限公司 | Axial magnetic bearing structure |
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| CN103244558A (en) * | 2013-06-06 | 2013-08-14 | 唐与川 | Magnetic suspension bearing |
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- 2017-08-29 CN CN201710755371.4A patent/CN107327488B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101985956A (en) * | 2010-10-26 | 2011-03-16 | 中国人民解放军国防科学技术大学 | Flat type vertical coil inner rotor hybrid magnetic bearing |
| CN103994104A (en) * | 2014-05-29 | 2014-08-20 | 南京磁谷科技有限公司 | Radial magnetic bearing tool |
| CN106438697A (en) * | 2016-11-21 | 2017-02-22 | 南京磁谷科技有限公司 | Axial magnetic bearing structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107327488A (en) | 2017-11-07 |
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| SE01 | Entry into force of request for substantive examination | ||
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| CP03 | Change of name, title or address |
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. |
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| CP03 | Change of name, title or address |