CN111478550A - Magnetic coupling - Google Patents
Magnetic coupling Download PDFInfo
- Publication number
- CN111478550A CN111478550A CN202010250072.7A CN202010250072A CN111478550A CN 111478550 A CN111478550 A CN 111478550A CN 202010250072 A CN202010250072 A CN 202010250072A CN 111478550 A CN111478550 A CN 111478550A
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- China
- Prior art keywords
- shaft sleeve
- driven
- magnet
- driving
- magnetic coupling
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K49/00—Dynamo-electric clutches; Dynamo-electric brakes
- H02K49/10—Dynamo-electric clutches; Dynamo-electric brakes of the permanent-magnet type
- H02K49/104—Magnetic couplings consisting of only two coaxial rotary elements, i.e. the driving element and the driven element
- H02K49/106—Magnetic couplings consisting of only two coaxial rotary elements, i.e. the driving element and the driven element with a radial air gap
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
Abstract
The invention provides a magnetic coupling, belonging to the field of machine manufacturing; the invention comprises the following steps: the device comprises a closed container, a driving shaft sleeve and a driven shaft sleeve; the driven shaft sleeve is rotatably arranged in the container; the driven shaft sleeve is provided with an embedded cavity, and the driving shaft sleeve is provided with a protruding shaft; the protruding shaft corresponds to the accommodating cavity; the protruding shaft is provided with a magnet, the driven shaft sleeve is provided with a driven magnet, and the magnet corresponds to the driven magnet through the side wall of the container; the end surface of the driven shaft sleeve is provided with a vertical driven magnet, and the end surface of the driving shaft sleeve is provided with a vertical driving magnet; the vertical driving magnet corresponds to the vertical driven magnet. The driven shaft sleeve can obtain magnetic attraction from the driving shaft sleeve from the end surface and the radial surface, so that the transmission torque of the coupler is larger, and the coaxial high-speed performance is excellent.
Description
Technical Field
The invention relates to a mechanical manufacturing technology, in particular to a magnetic coupling, and belongs to the technical field of manufacturing of transmission equipment.
Background
In recent years, vacuum technology has shown an attractive market prospect in the development of high-technology industrialization, when controlling objects in vacuum, a motive force outside a vacuum chamber is required to drive a driven member inside the vacuum chamber, the most common method at present is mechanical transmission, the mechanical transmission is that an indoor driven member and an outdoor motive member are connected by a shaft or other members, therefore, the inlet of the vacuum chamber needs to be sealed in vacuum, and the sealed elastic element is a rubber gasket, but the rubber gasket seal has the following defects: the contact surface of the rubber ring and the shaft is easy to cause air leakage and pollution to the vacuum chamber because the shaft rotates.
In the prior art, a magnetic coupling is generally adopted for transmission, but the magnetic coupling has lower conduction torque and cannot be applied to a high-torque or high-speed environment.
Disclosure of Invention
The invention provides a novel magnetic coupling, wherein magnets with magnetic force are arranged on the end face and the radial face of a driven shaft sleeve, so that the transmission torque of the coupling can be enhanced, and the technical problem that the transmission torque of the coupling is smaller or the air tightness is poorer in the prior art is solved.
The magnetic coupling of the embodiment of the invention comprises: the device comprises a closed container, a driving shaft sleeve and a driven shaft sleeve; the driven shaft sleeve is rotatably arranged in the container;
the driven shaft sleeve is provided with an embedded cavity, and the driving shaft sleeve is provided with a protruding shaft; the protruding shaft corresponds to the accommodating cavity; the protruding shaft is provided with a magnet, the driven shaft sleeve is provided with a driven magnet, and the magnet corresponds to the driven magnet through the side wall of the container;
the end surface of the driven shaft sleeve is provided with a vertical driven magnet, and the end surface of the driving shaft sleeve is provided with a vertical driving magnet; the vertical driving magnet corresponds to the vertical driven magnet.
The magnetic coupling is characterized in that the driving shaft sleeve is provided with a shaft hole.
The magnetic coupling is characterized in that the driven shaft sleeve is provided with a transmission hole, and the transmission hole is the same as the axis of the shaft hole.
The magnetic coupling as described above, wherein the driven shaft sleeve has a C-shaped cross section.
The magnetic coupling as described above, wherein the magnets are perpendicular to and do not contact the vertical driving magnets on the driving shaft sleeve.
The magnetic coupling as described above, wherein the driven shaft sleeve, the driven magnet and the vertical driven magnet are perpendicular to each other and do not contact each other.
In the embodiment of the invention, the driven shaft sleeve can obtain magnetic attraction from the driving shaft sleeve from the end surface and the radial surface, so that the transmission torque of the coupler is larger, and the coaxial high-speed performance is excellent.
Drawings
Fig. 1 is a side view of a magnetic coupling according to an embodiment of the present invention.
Detailed Description
The magnetic coupling according to the present invention can be made of, and is not limited to, the following materials, for example: stainless steel, a closed cabin body, a motor, section steel, a stirring rod, a permanent magnet, a shaft sleeve, a gear and the like.
Fig. 1 is a side view of a magnetic coupling according to an embodiment of the present invention; the magnetic coupling of the embodiment of the invention comprises: the device comprises a closed container 3, a driving shaft sleeve 1 and a driven shaft sleeve 2; the driven shaft sleeve 2 is rotatably arranged in the container 1; the container 3 is a closed container, can be a vacuum cavity, and can also be a corrosive liquid cavity.
The driven shaft sleeve 2 is provided with an embedded cavity, and the driving shaft sleeve 1 is provided with a protruding shaft 11; the protruding shaft 11 corresponds to the accommodating cavity; typically, the protruding shaft 11 is embedded in the cavity.
The protruding shaft 11 is provided with a magnet 4, the driven shaft sleeve 2 is provided with a driven magnet 40, and the magnet 4 corresponds to the driven magnet 40 through the side wall of the container 1; so that the magnetic attractive force on the radial surface of the projecting shaft can be transmitted to the radial surface of the driven sleeve 2.
A vertical driven magnet 50 is arranged on the end surface of the driven shaft sleeve 2, and a vertical driving magnet 5 is arranged on the end surface of the driving shaft sleeve 1; the vertical driving magnet 5 corresponds to the vertical driven magnet 50. Thereby convenient transmit the terminal surface of driven shaft sleeve 2 with the magnetic attraction on the initiative axle sleeve terminal surface.
In the embodiment of the invention, the driven shaft sleeve can obtain magnetic attraction from the driving shaft sleeve from both the end surface and the radial surface, namely, the driven shaft sleeve can obtain larger magnetic attraction acting force on both the radial surface and the end surface, so that the transmission torque of the coupler can be larger; in addition, the driven shaft sleeve is embedded on the protruding shaft at the outer side of the driving shaft sleeve through the container, so that the coaxial high-speed performance is excellent.
The magnetic coupling of this embodiment, wherein, be provided with shaft hole 10 on the initiative axle sleeve 1, initiative axle sleeve 1 passes through shaft hole 10 and connects outside driving motor's output shaft.
In general, the driven shaft sleeve 2 is provided with a driving hole 20, and the driving hole 20 is the same as the shaft hole 10. The transmission hole 20 is used for installing and driving the output shaft to rotate, and the rotation axis of the transmission hole 20 and the rotation axis of the driving shaft sleeve are overlapped.
The magnetic coupling of the present embodiment, wherein the section of the driven shaft sleeve 2 is a C-shaped structure, so as to facilitate the engagement of the driving shaft sleeve 1.
In the magnetic coupling of the present embodiment, on the driving shaft sleeve 1, the magnet 4 and the vertical driving magnet 5 are perpendicular to each other and do not contact each other.
Similarly, the driven magnet 40 and the vertical driven magnet 50 are perpendicular to each other and do not contact each other on the driven shaft sleeve 2.
In addition, the magnetic coupling is low in manufacturing cost, small and exquisite, compact in structural design, stable in finished product quality, convenient to disassemble and install, convenient to maintain and correct strips, and suitable for power transmission in various sealing environments.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments. Through the above description of the embodiments, those skilled in the art will clearly understand that the above embodiment method can be implemented by some modifications plus the necessary general technical overlap; of course, the method can also be realized by simplifying some important technical features in the upper level. Based on such understanding, the technical solution of the present invention essentially or contributing to the prior art is: overall function and construction, and to cooperate with the structure described in the various embodiments of the present invention.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (6)
1. A magnetic coupling, comprising: the device comprises a closed container, a driving shaft sleeve and a driven shaft sleeve; the driven shaft sleeve is rotatably arranged in the container;
the driven shaft sleeve is provided with an embedded cavity, and the driving shaft sleeve is provided with a protruding shaft; the protruding shaft corresponds to the accommodating cavity; the protruding shaft is provided with a magnet, the driven shaft sleeve is provided with a driven magnet, and the magnet corresponds to the driven magnet through the side wall of the container;
the end surface of the driven shaft sleeve is provided with a vertical driven magnet, and the end surface of the driving shaft sleeve is provided with a vertical driving magnet; the vertical driving magnet corresponds to the vertical driven magnet.
2. The magnetic coupling of claim 1, wherein the drive shaft sleeve is provided with a shaft hole.
3. The magnetic coupling of claim 2, wherein the driven shaft sleeve is provided with a transmission hole having the same axis as the shaft hole.
4. A magnetic coupling according to any of claims 1 to 3, wherein the driven sleeve is C-shaped in cross-section.
5. The magnetic coupling of any one of claims 1 to 3, wherein said magnets are perpendicular to and do not contact said vertical driving magnets on said driving shaft sleeve.
6. A magnetic coupling according to any one of claims 1 to 3, wherein the driven shaft sleeve is perpendicular to and does not contact the driven magnets with the vertical driven magnets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010250072.7A CN111478550A (en) | 2020-04-01 | 2020-04-01 | Magnetic coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010250072.7A CN111478550A (en) | 2020-04-01 | 2020-04-01 | Magnetic coupling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111478550A true CN111478550A (en) | 2020-07-31 |
Family
ID=71750516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010250072.7A Pending CN111478550A (en) | 2020-04-01 | 2020-04-01 | Magnetic coupling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111478550A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112332632A (en) * | 2020-10-26 | 2021-02-05 | 三峡大学 | Structure for increasing magnetic torque of magnetic coupling in limited space |
| WO2022261714A1 (en) * | 2021-06-16 | 2022-12-22 | Eon French | Systems and methods for power generation, transmission, amplification and/or storage |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001099194A (en) * | 1999-09-30 | 2001-04-10 | Hitachi Metals Ltd | Cylindrical electromagnetic coupling device |
| CN201027951Y (en) * | 2007-04-09 | 2008-02-27 | 刘新广 | Magnetic coupling device |
| CN101931308A (en) * | 2009-06-22 | 2010-12-29 | 余亚莉 | Permanent magnet coupling device for cylindrical transmission shaft |
| CN107579645A (en) * | 2017-10-25 | 2018-01-12 | 诸暨和创电机科技有限公司 | A kind of distance-limiting type permanent magnet clutch |
| CN108462366A (en) * | 2018-03-30 | 2018-08-28 | 湖南铁路科技职业技术学院 | Cylinder and circular cone mixed type coaxial-type magnetic sealing device suitable for railway freight-car |
| CN109067138A (en) * | 2018-08-27 | 2018-12-21 | 广西科技大学 | A kind of novel mixed permanent magnetic transmission device |
| CN110120735A (en) * | 2018-02-05 | 2019-08-13 | 江苏磁谷科技股份有限公司 | A kind of permanent magnet soft starter |
-
2020
- 2020-04-01 CN CN202010250072.7A patent/CN111478550A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001099194A (en) * | 1999-09-30 | 2001-04-10 | Hitachi Metals Ltd | Cylindrical electromagnetic coupling device |
| CN201027951Y (en) * | 2007-04-09 | 2008-02-27 | 刘新广 | Magnetic coupling device |
| CN101931308A (en) * | 2009-06-22 | 2010-12-29 | 余亚莉 | Permanent magnet coupling device for cylindrical transmission shaft |
| CN107579645A (en) * | 2017-10-25 | 2018-01-12 | 诸暨和创电机科技有限公司 | A kind of distance-limiting type permanent magnet clutch |
| CN110120735A (en) * | 2018-02-05 | 2019-08-13 | 江苏磁谷科技股份有限公司 | A kind of permanent magnet soft starter |
| CN108462366A (en) * | 2018-03-30 | 2018-08-28 | 湖南铁路科技职业技术学院 | Cylinder and circular cone mixed type coaxial-type magnetic sealing device suitable for railway freight-car |
| CN109067138A (en) * | 2018-08-27 | 2018-12-21 | 广西科技大学 | A kind of novel mixed permanent magnetic transmission device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112332632A (en) * | 2020-10-26 | 2021-02-05 | 三峡大学 | Structure for increasing magnetic torque of magnetic coupling in limited space |
| WO2022261714A1 (en) * | 2021-06-16 | 2022-12-22 | Eon French | Systems and methods for power generation, transmission, amplification and/or storage |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200731 |