CN210958111U - High-rotation-speed end-face magnetic coupling structure - Google Patents
High-rotation-speed end-face magnetic coupling structure Download PDFInfo
- Publication number
- CN210958111U CN210958111U CN201922001973.8U CN201922001973U CN210958111U CN 210958111 U CN210958111 U CN 210958111U CN 201922001973 U CN201922001973 U CN 201922001973U CN 210958111 U CN210958111 U CN 210958111U
- Authority
- CN
- China
- Prior art keywords
- magnetic
- mounting seat
- disk mounting
- magnetic disk
- rotational speed
- 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.)
- Active
Links
Images
Abstract
The utility model discloses a high rotational speed terminal surface magnetic coupling structure solves the technical problem of current high rotational speed vibration isolation, transmission power, belongs to the flexible shaft coupling field of high rotational speed. A high-rotation-speed end face magnetic coupling structure comprises a driving shaft, a driving end disk mounting seat, a magnetic ring, a spacer, a driven end disk mounting seat, a driven shaft and a gap adjusting gasket. The magnetic disk mounting seat is fixed with the shaft, and a dynamic balance weight-removing area is reserved in the magnetic disk mounting seat; the magnetic ring is arranged in the magnetic disk mounting seat and is in interference fit with the magnetic disk mounting seat; the magnetic pole between the N pole and the S pole in the magnetic ring; and a clearance of about 0.5mm is reserved between the driving end disk and the driven end disk, and the clearance is adjusted by a clearance adjusting gasket. The utility model discloses can use at high rotational speed, refer in particular to 60000r/min and above transmission field, realize the flexible hookup of high rotational speed, the utility model discloses under the operating condition, the vibration is little, can stabilize the transmission moment of torsion, and life is high, and is with low costs.
Description
Technical Field
The utility model relates to a high rotational speed terminal surface magnetic coupling structure for solve the technological problem of the steady transmission power of current high rotational speed, belong to the flexible shaft coupling field of high rotational speed.
Background
The high-speed coupling is a difficult point of research at home and abroad, and is particularly applied to the application field of the rotating speed of more than 60000rpm (the rpm is a rotating speed unit, and 1rpm represents 1 revolution per minute). At present, only the high-precision diaphragm coupling is applied in the field of high-rotating-speed power transmission more mature. The high-precision diaphragm coupler has high requirements on processing and manufacturing errors and application and assembly errors of parts, so that the coupler is high in manufacturing cost and maintenance cost and is difficult to be widely applied to engineering.
The magnetic coupling structure is an important method for realizing non-contact power transmission and torque transmission, and can be operated under the condition of centering error. However, the magnetic coupling structure is rarely applied to the field of high-speed transmission, and the main reasons are as follows: on one hand, the magnetic coupling is used as a part of the rotor, and is easy to generate violent vibration at high rotating speed, so that the system operation is influenced; on the other hand, the magnetic coupling has small tensile stress intensity, and the centrifugal tensile stress at high rotating speed can damage the magnetic coupling.
Chinese patent (granted publication number: CN104795964B) discloses a high-speed permanent magnet coupling. Structurally, this structure is a cartridge-type permanent magnet coupling. Although the patent specification is applicable to the field of 50000rpm high speed motors, as the barrel coupling structure, the greater the power transfer requirement, the longer the magnetic barrel. And the longer magnetic cylinder can generate larger vibration displacement and vibration force to influence the stable operation of the system at high rotating speed.
Disclosure of Invention
The utility model aims to solve the technical problem that, through designing a high rotational speed terminal surface magnetic coupling structure, realize the flexible hookup of initiative axle head and passive axle head, the vibration is little, can stabilize the transmission moment of torsion, and life is high, and is with low costs.
In order to achieve the purpose, the utility model relates to a high rotational speed terminal surface magnetic coupling, including drive end disk mount pad, driven end disk mount pad, drive end disk mount pad set up on the driving shaft, driven end disk mount pad sets up on the driven shaft, sets up the magnetic ring in drive end disk mount pad, driven end disk mount pad respectively, magnetic ring and disk mount pad interference fit, two magnetic ring polarity are opposite, set up the spacer on the face that drive end disk mount pad, driven end disk mount pad are relative, the spacer seals the magnetic ring in the disk mount pad, sets up 0.5mm-0.7 mm's clearance between drive end disk mount pad and the driven end disk mount pad.
The magnetic ring is of a circular ring-shaped integral structure.
The interference magnitude between the magnetic ring and the magnetic disk mounting seat is not less than 0.07 mm.
The spacer is firmly welded with the disk mounting seat.
The gap adjusting device further comprises a gap adjusting gasket, and the gap adjusting gasket is arranged on the driving shaft or the driven shaft.
The utility model firstly selects the end-face type magnetic coupling structure, and avoids the severe vibration of the rotor at high rotating speed caused by overlong cantilever at the end of the magnetic coupling; secondly, a magnetic ring structure is adopted instead of a fan-shaped magnetic sheet structure, so that the phenomenon that unbalance is generated during assembly to cause severe vibration at high rotating speed is avoided; the tensile stress generated by the high-speed rotation of the magnetic ring is offset through the interference fit design, so that the magnetic ring does not bear the tensile stress within the working rotating speed range, and the magnetic ring is prevented from cracking during working; and finally, a dynamic balance weight removing area is designed on the disk mounting seat, and unbalanced vibration at high rotating speed can be reduced by dynamically balancing the disk coupling. The utility model discloses have the function that the installation is simple, the vibration isolation is fallen and is fallen, stabilize transmission power, simultaneously under high rotational speed, especially the rotational speed is in 60000rpm and above rotor system, this shaft coupling operation is stable, and the vibration is little, long service life.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a partial enlarged view of the present invention;
FIG. 3 is a schematic structural view of a disk mounting base according to the present invention;
fig. 4 is a schematic view of the magnetic ring of the present invention.
Wherein: 1-driving shaft; 2-drive end disk mounting seat; 3-a magnetic ring; 4-a spacer; 5-driven end disk mounting base; 6-driven shaft; 7-gap adjusting gasket.
Detailed Description
The following is a detailed description of the present invention:
examples
As shown in fig. 1, the utility model relates to a high rotational speed terminal surface magnetic coupling structure contains driving shaft 1, driving end disk mount pad 2, magnetic ring 3, spacer 4, driven end disk mount pad 5, driven shaft 6, transfers clearance gasket 7. The magnetic disk mounting seat is fixed with the shaft, and a dynamic balance weight-removing area is reserved in the magnetic disk mounting seat; the magnetic ring is arranged in the magnetic disk mounting seat, the magnetic ring is in interference fit with the magnetic disk mounting seat, and a magnetic pole is arranged between the N pole and the S pole in the magnetic ring; the magnetic ring is sealed in the magnetic disk mounting seat by the spacer; and a clearance of about 0.5mm is reserved between the driving end disk and the driven end disk, and the clearance is adjusted by a clearance adjusting gasket. When the driving shaft rotates, the driven shaft is driven to rotate through the magnetic attraction between the magnetic rings.
As shown in fig. 4, the magnet ring 3 is a circular ring-shaped integral structure.
As shown in fig. 2, 3 and 4, the outer annular surface of the magnetic ring 3 is in interference fit with the inner annular surfaces of the disk mounting seats 2 and 5. The magnetic ring is in interference fit with the disk mounting seat, and the design requirement P of the interference magnitude lies in that: the designed interference magnitude counteracts the centrifugal tensile stress generated by the high-speed rotation of the magnetic ring, so that the magnetic ring still does not bear the tensile stress at the maximum working speed. Taking a certain embodiment as an example, the diameter of the magnetic ring is 4.5mm, the diameter of the magnetic ring is 15mm, and the maximum rotating speed is 90000 rpm. According to the conditions, the maximum centrifugal pressure borne by the magnetic ring under the condition of no interference fit is calculated through a formula.
F, centrifugal force; m mass; r radius; omega angular velocity; rho material density; d theta single sector infinitesimal; dr radial infinitesimal; l disc axial length; p centrifugal pressure (pressure); a, the centrifugal force action area of a single sector; and f, frequency conversion. And calculating to obtain the maximum centrifugal pressure of the magnetic ring to be 49 MPa. The interference magnitude is designed to be not less than 0.07mm according to the maximum centrifugal pressure and the coordinated deformation of the magnetic ring and the magnetic disk mounting seat.
As shown in fig. 2 and 3, dynamic balance weight removing regions are provided on the back surfaces of the disk mounting base 2 and the disk mounting base 5, and unbalance vibration at a high rotation speed can be reduced by performing dynamic balance on the magnetic coupling.
As shown in fig. 1 and 2, the two spacers 4 are connected to the drive-side disk mount 2 and the driven-side disk mount 5, respectively, by laser welding. The laser welding form is reliable, the heat diffusion range is small, demagnetization of the magnetic ring cannot be caused, and the laser welding method is very effective.
Above embodiment only is for explaining the utility model discloses a technical thought can not be injectd with this the utility model discloses a protection scope, all according to the utility model provides a technical thought, any change of doing on technical scheme basis all falls into the utility model discloses within the protection scope.
Claims (5)
1. The utility model provides a high rotational speed terminal surface magnetic coupling which characterized in that: the magnetic ring magnetic disk drive comprises a drive end magnetic disk mounting seat and a driven end magnetic disk mounting seat, wherein the drive end magnetic disk mounting seat is arranged on a drive shaft, the driven end magnetic disk mounting seat is arranged on a driven shaft, magnetic rings are respectively arranged in the drive end magnetic disk mounting seat and the driven end magnetic disk mounting seat, the magnetic rings are in interference fit with the magnetic disk mounting seats, the polarities of the two magnetic rings are opposite, spacers are arranged on the opposite surfaces of the drive end magnetic disk mounting seat and the driven end magnetic disk mounting seat, the spacers seal the magnetic rings in the magnetic disk mounting seats, and a gap of 0.5-0.7 mm is arranged between the drive end magnetic disk mounting seat and the driven end magnetic disk mounting seat.
2. The magnetic coupling of claim 1, wherein: the magnetic ring is of a circular ring-shaped integral structure.
3. The magnetic coupling of claim 1, wherein: the interference magnitude between the magnetic ring and the magnetic disk mounting seat is not less than 0.07 mm.
4. The magnetic coupling of claim 1, wherein: the spacer is firmly welded with the disk mounting seat.
5. The magnetic coupling of claim 1, wherein: the gap adjusting device further comprises a gap adjusting gasket, and the gap adjusting gasket is arranged on the driving shaft or the driven shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922001973.8U CN210958111U (en) | 2019-11-19 | 2019-11-19 | High-rotation-speed end-face magnetic coupling structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922001973.8U CN210958111U (en) | 2019-11-19 | 2019-11-19 | High-rotation-speed end-face magnetic coupling structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210958111U true CN210958111U (en) | 2020-07-07 |
Family
ID=71376493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922001973.8U Active CN210958111U (en) | 2019-11-19 | 2019-11-19 | High-rotation-speed end-face magnetic coupling structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210958111U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113389750A (en) * | 2021-07-29 | 2021-09-14 | 深圳飞磁科技有限公司 | High-speed contactless magnetic suspension coupling for suspension blower |
| CN114234003A (en) * | 2021-12-03 | 2022-03-25 | 徐州新电高科电气有限公司 | Cloud platform camera structure suitable for electric power |
-
2019
- 2019-11-19 CN CN201922001973.8U patent/CN210958111U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113389750A (en) * | 2021-07-29 | 2021-09-14 | 深圳飞磁科技有限公司 | High-speed contactless magnetic suspension coupling for suspension blower |
| CN114234003A (en) * | 2021-12-03 | 2022-03-25 | 徐州新电高科电气有限公司 | Cloud platform camera structure suitable for electric power |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210958111U (en) | High-rotation-speed end-face magnetic coupling structure | |
| CN202197205U (en) | Variable torque and variable speed permanent magnetic coupler | |
| CN102324830B (en) | Vertical permanent magnetic variable torque variable speed coupler with radiating device | |
| CN203457028U (en) | Coaxial sleeve type permanent magnetic eddy current coupling employing magnet-gathering type magnetic circuit structure | |
| CN111946656A (en) | Combined permanent magnetic suspension bearing for pump | |
| CN104506015A (en) | Magnetic transmission device | |
| CN107465286B (en) | Permanent magnet rotor structure | |
| CN101571161A (en) | Magnetic sliding bearing | |
| CN100441891C (en) | Permanent magnetism and turbine composite bearing | |
| CN110259952B (en) | Rotary dynamic sealing device of centrifugal machine | |
| CN207261255U (en) | A kind of Fluorine-lined magnetic centrifugal pump | |
| CN104005797B (en) | Gas turbine rotor supporting mechanism and the gas turbine with this supporting mechanism | |
| CN112849383A (en) | Sealed rim propeller or generator | |
| CN204156709U (en) | A kind of hybrid permanent magnet eddy-current coupling | |
| CN103107679A (en) | Permanent magnet eddy coupling with smaller time-lag effects in disc type | |
| CN103490589A (en) | Coaxial sleeve type permanent magnet eddy-current coupling with magnetic coagulation type magnetic circuit structure | |
| CN210034331U (en) | Permanent magnet flexible transmission gear | |
| CN212407292U (en) | Upper driving type main shaft complex for centrifugal supergravity device | |
| CN212868447U (en) | Mechanical sealing device for pressure screen | |
| CN205278381U (en) | Rotation type multi -spring seal structure | |
| CN210920119U (en) | Rotary dynamic sealing device of centrifugal machine | |
| CN104253523A (en) | Combined permanent magnet eddy current speed governor | |
| CN210318214U (en) | Rotor bearing of horizontal end suction pump | |
| CN204559269U (en) | A kind of modular rotor structure of magneto | |
| CN203734504U (en) | Plug-in type permanent magnetic driving speed governor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230629 Address after: 211299 3rd Floor, Comprehensive Experimental Building, No.1 Science and Technology Innovation Avenue, Lishui Economic Development Zone, Nanjing, Jiangsu Province Patentee after: Rongtong Aviation Engine Technology Co.,Ltd. Address before: No. 766, Zhujiang Road, Xuanwu District, Nanjing City, Jiangsu Province, 210016 Patentee before: NO.60 INSTITUTE OF THE HEADQUARTERS OF GENERAL STAFF OF PLA |
|
| TR01 | Transfer of patent right |