CN217240554U - Fully-sealed magnetic coupling - Google Patents
Fully-sealed magnetic coupling Download PDFInfo
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- CN217240554U CN217240554U CN202123159804.0U CN202123159804U CN217240554U CN 217240554 U CN217240554 U CN 217240554U CN 202123159804 U CN202123159804 U CN 202123159804U CN 217240554 U CN217240554 U CN 217240554U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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Abstract
The utility model discloses a totally enclosed magnetic coupling, wherein, totally enclosed magnetic coupling includes: an inner rotor including a first housing, an inner magnet, and an inner rotor body; the inner rotor body is positioned on the inner side of the first shell and encloses with the first shell to form a first sealed cavity; the inner magnet is accommodated in the first sealing cavity and is connected with the inner rotor body and the first shell in a sealing manner; the outer rotor is sleeved on the inner rotor and is magnetically connected with the inner rotor; the outer rotor comprises a second shell, an outer magnet and an outer rotor body; the outer rotor body is positioned on the inner side of the second shell and surrounds the second shell to form a second sealed cavity; the outer magnet is accommodated in the second sealing cavity and is in sealing connection with the outer rotor body and the second shell; the outer magnet and the inner magnet are magnetically connected.
Description
Technical Field
The utility model relates to a technical field of shaft coupling, in particular to totally enclosed magnetic coupling.
Background
Along with the development of science and technology, the shaft coupling is gradually applied to the processing industry, wherein the shaft coupling comprises an inner rotor and an outer rotor, the inner rotor is connected with the outer rotor, power transmission between an output shaft and a driven shaft is achieved, the inner rotor and the outer rotor are communicated with each other, when the inner rotor and the outer rotor rotate simultaneously, oily liquid is easy to leak between the inner rotor and the outer rotor, and the application scene of the shaft coupling is limited.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model adopts the following technical scheme:
according to an aspect of the utility model, the utility model provides a totally enclosed magnetic coupling, include:
an inner rotor including a first housing, an inner magnet, and an inner rotor body; the inner rotor body is positioned on the inner side of the first shell and encloses with the first shell to form a first sealed cavity; the inner magnet is accommodated in the first sealing cavity and is connected with the inner rotor body and the first shell in a sealing mode; the inner rotor body is provided with a first mounting hole, and the first mounting hole is used for mounting an output shaft;
the outer rotor is sleeved on the inner rotor and is magnetically connected with the inner rotor; the outer rotor comprises a second shell, an outer magnet and an outer rotor body; the outer rotor body is positioned on the inner side of the second shell and encloses with the second shell to form a second sealed cavity; the outer magnet is accommodated in the second sealing cavity and is in sealing connection with the outer rotor body and the second shell; the outer magnet is magnetically connected with the inner magnet; the outer rotor body is provided with a second mounting hole, and the second mounting hole is used for mounting a driven shaft.
Optionally, the inner magnet is fixedly connected to the outer side of the inner rotor body and covered by the first housing; the first housing removably mounts the inner rotor body.
Optionally, the inner rotor body is a regular polygon; the inner magnet is provided with a plurality of inner magnets which are correspondingly arranged on a plurality of outer side walls of the inner rotor body.
Optionally, the first housing includes a first cover portion and two first side cover portions; the outer side wall of the inner magnet, which faces away from the inner rotor body, is attached to the inner wall of the first cover body; the two first side cover parts are positioned at two sides of the first cover body part and the inner rotor body and are respectively welded with the first cover body part and the inner rotor body in an annular laser mode.
Optionally, the inner magnet and the outer magnet may be rare earth neodymium iron boron or samarium cobalt magnetic steel.
Optionally, an annular accommodating cavity is formed in the outer rotor body; the outer magnet is arranged on the inner wall of the accommodating cavity; the second shell is arranged on one side of the outer rotor body, covers the accommodating cavity and is combined with the outer rotor body to be connected with the outer magnet in a sealing mode.
Optionally, the second housing and the outer rotor ring are annularly laser welded.
Optionally, the outer magnets are provided in plurality, and the plurality of outer magnets and the plurality of inner magnets are arranged in one-to-one correspondence and are mutually magnetically connected; the magnetic directions of two adjacent outer magnets are opposite; the magnetic directions of two adjacent inner magnets are opposite.
Optionally, the inner rotor with be connected with the cage between the outer rotor, the cage fills the inner rotor with clearance between the outer rotor, the inside wall laminating of cage the inner rotor, the laminating of lateral wall the outer rotor.
According to the above technical scheme, the embodiment of the utility model provides an at least have following advantage and positive effect:
in the fully sealed magnetic coupling of the embodiment of the utility model, the inner rotor comprises a first shell, an inner magnet and an inner rotor body; the inner rotor body is positioned on the inner side of the first shell and encloses with the first shell to form a first sealed cavity; the inner magnet is accommodated in the first sealing cavity and is connected with the inner rotor body and the first shell in a sealing mode; the inner rotor body is provided with a first mounting hole, and the first mounting hole is used for mounting an output shaft; the outer rotor is sleeved on the inner rotor and is magnetically connected with the inner rotor; the outer rotor comprises a second shell, an outer magnet and an outer rotor body; the outer rotor body is positioned on the inner side of the second shell and encloses with the second shell to form a second sealed cavity; the outer magnet is accommodated in the second sealing cavity and is in sealing connection with the outer rotor body and the second shell; the outer magnet is magnetically connected with the inner magnet; the outer rotor body is provided with a second mounting hole for mounting a driven shaft, wherein the inner rotor is used as an independent part for independently protecting the inner magnet and sealing the inner magnet under the sealing action of the inner rotor body and the first shell, the outer rotor is also used as an independent part for independently protecting the outer magnet and sealing the outer magnet under the sealing action of the outer rotor body and the second shell, therefore, the inner rotor and the outer rotor are both used as independent parts and can realize independent sealing, the application scene of the fully-sealed magnetic coupling is greatly improved, the leakage and the use of oily liquid are avoided, the inner rotor and the outer rotor realize the magnetic connection between the inner rotor and the outer rotor through the inner magnet and the outer magnet, the inner rotor is provided with an output shaft through the inner rotor body and transmits the driving force of the output shaft to the outer rotor, the outer rotor is connected with the driven shaft through the outer rotor body and drives the driven shaft to rotate along with the rotation of the output shaft.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic view of a fully sealed magnetic coupling according to the present invention;
fig. 2 is a partial schematic view of a fully sealed magnetic coupling according to the present invention;
fig. 3 is an internal schematic view of a fully sealed magnetic coupling according to the present invention;
the objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In the present application, unless expressly stated or limited otherwise, the terms "connected" and "secured" are to be construed broadly, and thus, for example, "secured" may be connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
Along with the development of science and technology, the shaft coupling is gradually applied to the processing industry, wherein the shaft coupling comprises an inner rotor and an outer rotor, the inner rotor is connected with the outer rotor, power transmission between an output shaft and a driven shaft is achieved, the inner rotor and the outer rotor are communicated with each other, when the inner rotor and the outer rotor rotate simultaneously, oily liquid is easy to leak between the inner rotor and the outer rotor, and the application scene of the shaft coupling is limited.
Referring to fig. 1 to 3, the present invention provides a hermetically sealed magnetic coupling 100, where the hermetically sealed magnetic coupling 100 includes an inner rotor 10 and an outer rotor 20, the outer rotor 20 is sleeved on the inner rotor 10 and magnetically connected to the inner rotor 10, and a magnetic connection between the outer rotor 20 and the inner rotor 10 and a magnetic connection between the outer magnet 22 and the inner magnet 12 are used to achieve relative adsorption and to achieve power transmission. The inner rotor 10 is used for connecting an output shaft of the motor, and the outer rotor 20 is used for connecting a driven shaft. Optionally, the inner magnet 12 and the outer magnet 22 may be rare earth neodymium iron boron or samarium cobalt magnetic steel.
The inner rotor 10 includes a first housing 11, an inner magnet 12, and an inner rotor body 13, the inner magnet 12 being between the first housing 11 and the inner rotor body 13. The inner rotor body 13 is provided with a first mounting hole for mounting an output shaft;
the inner rotor body 13 is positioned inside the first housing 11 and encloses with the first housing 11 to form a first sealed cavity 13 a; the inner magnet 12 is accommodated in the first sealing cavity 13a, and is connected with the inner rotor body 13 and the first shell 11 in a sealing manner, wherein the inner magnet 12 is accommodated in the first sealing cavity 13a, and is covered by the inner rotor body 13 and the first shell 11, so that the inner magnet 12 realizes independent sealing in the inner rotor 10, the application scene of the fully-sealed magnetic coupling 100 is greatly improved, and the leakage and the use of oily liquid are avoided.
The inner magnet 12 is fixedly connected to the outer side of the inner rotor body 13 and covered by the first shell 11; the inner rotor body 13 is detachably mounted to the first housing 11, wherein when the first housing 11 is separated from the inner rotor body 13, the inner magnet 12 may be mounted to an outer sidewall of the inner rotor body 13 and fixedly connected to an outer sidewall of the inner rotor body 13, and then the first housing 11 is mounted to the inner rotor body 13 and covers the inner magnet 12.
Optionally, the inner rotor body 13 is in a regular polygon shape; the inner magnet 12 has a plurality of inner magnets 12 mounted on a plurality of outer side walls of the inner rotor body 13.
The first housing 11 includes a first cover portion 111 and two first side cover portions 112; the outer side wall of the inner magnet 12 facing away from the inner rotor body 13 is fitted to the inner wall of the first housing portion 111; two first side cover part 112 subsection is in first cover somatic part 111 with the both sides of interior rotor block 13, and respectively with first cover somatic part 111 with interior rotor block 13 annular laser welding, wherein, two the marginal laminating of first side cover first cover somatic part 111 with the both sides of interior rotor block 13 to be the annular laminating, and fix based on laser welding, improved inner rotor 10's sealed effect greatly.
Referring to fig. 1 to 3, the outer rotor 20 is magnetically connected to the inner rotor 10 and is spaced apart from the inner rotor 10. The outer rotor 20 includes a second case 21, outer magnets 22, and an outer rotor body 23; the outer rotor body 23 is located inside the second casing 21 and encloses a second sealed cavity 23a with the second casing 21; the outer magnet 22 is accommodated in the second seal cavity 23a, and is connected to the outer rotor body 23 and the second housing 21 in a sealing manner, wherein the outer magnet 22 is accommodated in the second seal cavity 23a and is covered by the outer rotor body 23 and the second housing 21, so that the outer magnet 22 is sealed independently in the outer rotor 20, thereby greatly improving the application scenario of the fully-sealed magnetic coupling 100 and avoiding leakage and use of oily liquid. Optionally, the outer rotor body 23 is provided with a second mounting hole, and the second mounting hole is used for mounting a driven shaft.
The outer magnet 22 and the inner magnet 12 are magnetically connected; the number of the outer magnets 22 is multiple, and the multiple outer magnets 22 and the multiple inner magnets 12 are arranged in a one-to-one correspondence manner and are mutually and magnetically connected; the magnetic directions of two adjacent outer magnets 22 are opposite; the magnetic directions of two adjacent inner magnets 12 are opposite, wherein the magnetic direction branches of two adjacent outer magnets 22 are alternately arranged with NS poles, and the magnetic direction branches of two adjacent inner magnets 12 are alternately arranged with NS poles.
An annular accommodating cavity is formed in the outer rotor body 23; the outer magnets 22 are mounted on the inner wall of the accommodating cavity; the second housing 21 is installed at one side of the outer rotor body 23 and covers the receiving cavity, and is hermetically connected to the outer magnet 22 in combination with the outer rotor body 23, wherein the second housing 21 is ring laser welded to the outer rotor body 23.
Optionally, an isolation cover 30 is connected between the inner rotor 10 and the outer rotor 20, the isolation cover 30 fills a gap between the inner rotor 10 and the outer rotor 20, an inner side wall of the isolation cover 30 is attached to the inner rotor 10, and an outer side wall is attached to the outer rotor 20.
According to the above technical scheme, the embodiment of the utility model provides an at least have following advantage and positive effect:
in the fully sealed magnetic coupling 100 according to the embodiment of the present invention, the inner rotor 10 includes a first housing 11, an inner magnet 12, and an inner rotor body 13; the inner rotor body 13 is positioned inside the first housing 11 and encloses with the first housing 11 to form a first sealed cavity 13 a; the inner magnet 12 is accommodated in the first seal cavity 13a and is connected with the inner rotor body 13 and the first housing 11 in a sealing manner; the inner rotor body 13 is provided with a first mounting hole for mounting an output shaft; the outer rotor 20 is sleeved on the inner rotor 10 and is magnetically connected with the inner rotor 10; the outer rotor 20 includes a second case 21, outer magnets 22, and an outer rotor body 23; the outer rotor body 23 is located inside the second casing 21 and encloses a second sealed cavity 23a with the second casing 21; the outer magnet 22 is accommodated in the second seal cavity 23a and is connected with the outer rotor body 23 and the second housing 21 in a sealing manner; the outer magnet 22 and the inner magnet 12 are magnetically connected; the outer rotor body 23 is provided with a second mounting hole for mounting a driven shaft, wherein the inner rotor 10, as a separate component, independently protects the inner magnet 12 and seals the inner magnet 12 under the sealing action of the inner rotor body 13 and the first housing 11, and the outer rotor 20, as a separate component, independently protects the outer magnet 22 and seals the outer magnet 22 under the sealing action of the outer rotor body 23 and the second housing 21, so that the inner rotor 10 and the outer rotor 20 both serve as separate components and can be independently sealed, the application scenarios of the fully-sealed magnetic coupling 100 are greatly improved, the leakage and the use of oily liquid are avoided, the inner rotor 10 and the outer rotor 20 realize the magnetic connection between the inner rotor 10 and the outer rotor 20 through the inner magnet 12 and the outer magnet 22, the inner rotor 10 mounts an output shaft through the inner rotor body 13, and transmits the driving force of the output shaft to the outer rotor 20, and the outer rotor 20 is connected to the driven shaft through the outer rotor body 23 and drives the driven shaft to rotate along with the rotation of the output shaft.
The above is only the optional embodiment of the present invention, and not therefore the limit of the patent scope of the present invention, all of which are in the concept of the present invention, the equivalent structure transformation of the content of the specification and the drawings is utilized, or the direct/indirect application is included in other related technical fields in the patent protection scope of the present invention.
Claims (9)
1. A fully sealed magnetic coupling, comprising:
an inner rotor including a first housing, an inner magnet, and an inner rotor body; the inner rotor body is positioned on the inner side of the first shell and encloses with the first shell to form a first sealed cavity; the inner magnet is accommodated in the first sealing cavity and is connected with the inner rotor body and the first shell in a sealing mode; the inner rotor body is provided with a first mounting hole, and the first mounting hole is used for mounting an output shaft;
the outer rotor is sleeved on the inner rotor and is magnetically connected with the inner rotor; the outer rotor comprises a second shell, an outer magnet and an outer rotor body; the outer rotor body is positioned on the inner side of the second shell and surrounds the second shell to form a second sealed cavity; the outer magnet is accommodated in the second sealing cavity and is in sealing connection with the outer rotor body and the second shell; the outer magnet is magnetically connected with the inner magnet; the outer rotor body is provided with a second mounting hole, and the second mounting hole is used for mounting a driven shaft.
2. The fully sealed magnetic coupling of claim 1, wherein the inner magnet is fixedly attached to the outside of the inner rotor body and is shrouded by the first housing; the first housing removably mounts the inner rotor body.
3. The hermetically sealed magnetic coupling of claim 2, wherein the inner rotor body has a regular polygon shape; the inner magnet is provided with a plurality of inner magnets which are correspondingly arranged on a plurality of outer side walls of the inner rotor body.
4. The fully sealed magnetic coupling of claim 3, wherein the first housing includes a first cover body portion and two first side cover portions; the outer side wall of the inner magnet, which faces away from the inner rotor body, is attached to the inner wall of the first cover body; the two first side cover parts are positioned on two sides of the first cover body part and the inner rotor body and are respectively in annular laser welding with the first cover body part and the inner rotor body.
5. The hermetically sealed magnet coupling of claim 4, wherein the inner magnets and the outer magnets are rare earth neodymium iron boron or samarium cobalt steel.
6. The fully sealed magnetic coupling of claim 5, wherein an annular receiving cavity is provided in said outer rotor body; the outer magnet is arranged on the inner wall of the accommodating cavity; the second shell is arranged on one side of the outer rotor body, covers the accommodating cavity and is combined with the outer rotor body to be connected with the outer magnet in a sealing mode.
7. The fully sealed magnetic coupling of claim 6, wherein the second housing is annularly laser welded to the outer rotor ring.
8. The fully sealed magnet coupling of claim 6, wherein said outer magnets are a plurality of, and a plurality of said outer magnets are arranged in one-to-one correspondence with a plurality of said inner magnets and magnetically coupled to each other; the magnetic directions of two adjacent outer magnets are opposite; the magnetic directions of two adjacent inner magnets are opposite.
9. The hermetically sealed magnetic coupling of claim 6, wherein a cage is coupled between the inner rotor and the outer rotor, the cage filling a gap between the inner rotor and the outer rotor, an inner sidewall of the cage engaging the inner rotor and an outer sidewall of the cage engaging the outer rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123159804.0U CN217240554U (en) | 2021-12-14 | 2021-12-14 | Fully-sealed magnetic coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123159804.0U CN217240554U (en) | 2021-12-14 | 2021-12-14 | Fully-sealed magnetic coupling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217240554U true CN217240554U (en) | 2022-08-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123159804.0U Active CN217240554U (en) | 2021-12-14 | 2021-12-14 | Fully-sealed magnetic coupling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217240554U (en) |
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2021
- 2021-12-14 CN CN202123159804.0U patent/CN217240554U/en active Active
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