CN219041604U - Magnetic coupling driving device and magnetic coupling driver - Google Patents
Magnetic coupling driving device and magnetic coupling driver Download PDFInfo
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- CN219041604U CN219041604U CN202223227418.5U CN202223227418U CN219041604U CN 219041604 U CN219041604 U CN 219041604U CN 202223227418 U CN202223227418 U CN 202223227418U CN 219041604 U CN219041604 U CN 219041604U
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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
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- Y02T10/64—Electric machine technologies in electromobility
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Abstract
The utility model discloses a magnetic coupling driving device and a magnetic coupling driver, wherein the magnetic coupling driving device comprises a shell, a first rotor is arranged in the shell in a autorotation manner, the first rotor is connected with a driver for driving the first rotor to rotate, a sealing shell which is in relative rotation with the first rotor is coaxially arranged in the first rotor, a second rotor is coaxially arranged in the sealing shell and can rotate relative to the first rotor, a circle of inner magnet is arranged on the second rotor, a circle of outer magnet surrounding the periphery of the inner magnet is arranged on the first rotor, the inner magnet corresponds to the outer magnet one by one, the magnetic poles of the opposite sides of a pair of inner magnets and the outer magnet which are opposite in position are opposite, and the sealing shell comprises a sealing flange positioned outside the second end of the shell. The utility model adopts a structure that the outer magnet is arranged at the periphery of the inner magnet in a surrounding way, the side surface can have larger magnetic attraction area relatively, the torque transmission capacity can be effectively improved, and the magnetic coupling driving device can transmit torque up to 13Nm through the number and the size design of the inner magnet and the outer magnet.
Description
Technical Field
The utility model relates to the field of connecting devices, in particular to a magnetic coupling driving device and a magnetic coupling driver.
Background
The magnetic coupling seal cup is used in a deposition furnace or the like to enable a desired vacuum environment to be obtained in the deposition furnace.
For example, chinese patent publication No. CN206918256U discloses an ultra-high vacuum magnetic coupling seal, but in this structure, a first magnet and a second magnet with opposite end faces are adopted to cooperate to realize synchronous rotation.
The structure has the defects that: this results in limited torque transfer capability due to the smaller magnetic attraction at the opposite ends of the first and second magnets, which can transfer only up to 4Nm when the number of first and second magnets is around 10.
Disclosure of Invention
The present utility model is directed to solving the above-mentioned problems in the prior art and providing a magnetic coupling driving device and a magnetic coupling actuator.
The aim of the utility model is achieved by the following technical scheme:
the magnetic coupling driving device comprises a shell, wherein a first rotor is arranged in the shell in a rotatable manner, the first rotor is connected with a driver for driving the first rotor to rotate, the driver is arranged outside a first end of the shell, a sealing shell is coaxially arranged in the first rotor, relative rotation movement is arranged between the sealing shell and the first rotor, a second rotor is coaxially arranged in the sealing shell and can rotate relative to the sealing shell, a circle of inner magnet is arranged at the circumferential surface of the second rotor, a circle of outer magnet surrounding the periphery of the inner magnet is arranged on the first rotor, the inner magnet corresponds to the outer magnet one by one, the magnetic poles of opposite sides of a pair of inner magnets and the outer magnet which are opposite in position are opposite, and the sealing shell comprises a sealing flange positioned outside a second end of the shell.
Preferably, in the magnetic coupling driving device, the number of the inner magnets and the number of the outer magnets are larger than four.
Preferably, in the magnetic coupling driving device, the length of the opposite surfaces of the inner magnet and the outer magnet which are opposite to each other is 30mm, and the width thereof is 10mm.
Preferably, in the magnetic coupling driving device, the first rotor includes a first mounting groove and a first protrusion, the inner diameter of the first mounting groove is larger than the diameter of the first protrusion, the first protrusion is connected with the inner wall of the housing through a first bearing, and the seal housing is rotatably disposed in the first mounting groove.
Preferably, in the magnetic coupling driving device, the second protrusion of the seal housing is connected to the inner wall of the first mounting groove through a second bearing, and the second bearing is coaxial with the first bearing and has the same outer diameter.
Preferably, in the magnetic coupling driving device, the second rotor is connected in the sealed housing through a third bearing and a fourth bearing, the third bearing is connected to the inner end of the second rotor, and the fourth bearing is connected to the outer end of the second rotor.
Preferably, in the magnetic coupling driving device, the second rotor includes a first shaft body and a second shaft body that are coaxial, the diameter of the first shaft body is smaller than that of the second shaft body, the third bearing is sleeved on the periphery of the first shaft body, and the fourth bearing is sleeved on the periphery of the second shaft body.
Preferably, in the magnetic coupling driving device, the inner magnet is fixed on the outer periphery of the second shaft body through a fixing sleeve sleeved on the outer periphery of the second shaft body and positioned between the third bearing and the fourth bearing.
Preferably, in the magnetic coupling driving device, an installation part is formed at the periphery of the second shaft body, a circle of accommodation space with equal circumference is formed at the installation part, each accommodation space extends along the axial direction of the second shaft body and is used for installing one inner magnet, the accommodation space is at least provided with an upper port, and a cover plate for shielding the upper port is screwed at the upper end of the installation part.
The magnetic coupling driver comprises a shell, wherein a first rotor is arranged in the shell in a rotatable manner, a sealing shell is coaxially arranged in the first rotor, relative rotary motion is realized between the sealing shell and the first rotor, a second rotor is coaxially arranged in the sealing shell and can be arranged in a rotatable manner relative to the sealing shell, a circle of inner magnet is arranged at the circumferential surface of the second rotor, a circle of outer magnet surrounding the periphery of the inner magnet is arranged on the first rotor, the inner magnet corresponds to the outer magnet one by one, the magnetic poles of the opposite sides of the pair of inner magnets and the outer magnet, which are opposite in position, are opposite, and the sealing shell comprises a sealing flange positioned outside the second end of the shell.
The technical scheme of the utility model has the advantages that:
the utility model adopts a structure that the outer magnet is arranged around the inner magnet, and the side surface is opposite to the end surface, so that the side surface can have larger magnetic attraction area, thereby effectively improving the torque transmission capability, and the magnetic coupling driving device can transmit torque to 13Nm through the number and the size design of the inner magnet and the outer magnet. Meanwhile, the sealing shell can effectively isolate the first rotor from the second rotor, and the sealing performance is guaranteed.
According to the utility model, the first rotor and the shell are connected through the bearing, the sealing shell is connected with the first rotor through the bearing, the second rotor is connected with the sealing shell through the bearing, and the position stability between the first rotor and the shell can be effectively reduced and ensured through the design of the mounting position of the bearing, the clamping phenomenon caused by friction is reduced, and the transmission stability is higher.
The utility model has the advantages of convenient structure installation and good stability, and simultaneously, the whole structure is compact by the design of the modeling of the parts.
The inner magnet is fixed by the fixing sleeve sleeved on the periphery of the first rotor, so that the inner magnet is convenient to assemble and disassemble.
Drawings
FIG. 1 is a cross-sectional view of a magnetically coupled drive of the present utility model;
FIG. 2 is an enlarged view of area A of FIG. 1;
FIG. 3 is an end view of the second rotor of the present utility model;
fig. 4 is a cross-sectional view of a magnetically coupled actuator of the present utility model.
Detailed Description
The objects, advantages and features of the present utility model are illustrated and explained by the following non-limiting description of preferred embodiments. These embodiments are only typical examples of the technical scheme of the utility model, and all technical schemes formed by adopting equivalent substitution or equivalent transformation fall within the scope of the utility model.
In the description of the embodiments, it should be noted that the positional or positional relationship indicated by the terms such as "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in the specific orientation, and thus are not to be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The magnetic coupling driving device disclosed by the utility model is described below with reference to the accompanying drawings, as shown in fig. 1, the magnetic coupling driving device comprises a housing 100, a first rotor 300 is rotatably arranged in the housing 100, the first rotor 300 is connected with a driver 500 for driving the first rotor to rotate, the driver 500 is arranged outside a first end of the housing 100, a sealing shell 700 is coaxially arranged in the first rotor 300, relative rotation movement is provided between the sealing shell 700 and the first rotor 300, a second rotor 900 is coaxially and rotatably arranged in the sealing shell 700, a circle of inner magnets 200 is arranged at the outer circumference of the second rotor 900, a circle of outer magnets 400 surrounding the inner magnets 200 is arranged on the first rotor 300, the inner magnets 200 are in one-to-one correspondence with the outer magnets 400, the opposite magnetic poles of a pair of inner magnets 200 and the opposite sides of the outer magnets 400 which are opposite, and the sealing shell 700 comprises a sealing flange 710 positioned outside a second end of the housing 100.
As shown in fig. 2, the housing 100 includes a sleeve 110 and an end plate 120 screwed to a first end (upper end) of the sleeve 110, the end plate 120 includes a ring body 121 and a convex ring 122 coaxially disposed at a lower end of the ring body 121, a through hole 123 of the ring body 121 includes a first hole section 124 and a second hole section 125 sequentially disposed from top to bottom, a diameter of the first hole section is smaller than a diameter of the second hole section, an inner diameter of the convex ring 122 is larger than a diameter of the second hole section, and an outer diameter of the convex ring is equal to an inner diameter of the sleeve 110, so that butt joint of the sleeve and the end plate 120 can be conveniently performed.
As shown in fig. 1 and 2, the driver 500 may be a motor or a rotary cylinder, which is screwed above the end plate 120, and the driving shaft 510 of the driver 500 extends into the sleeve 110 through the through hole 123 and is connected to the first rotor 300.
As shown in fig. 2, the first rotor 300 includes a first mounting groove 310 and a first protrusion 320 coaxially disposed, the first mounting groove 310 having an inner diameter larger than that of the first protrusion 320 and an outer diameter of the first mounting groove 310 corresponding to that of the collar 122, the first protrusion 320 being coupled to the second hole section of the housing 100 by a first bearing 600, and the first protrusion 320 being formed with a coupling hole or coupling groove coaxially disposed with the through hole 121 to couple with the driving shaft 510 of the driver 500. The outer magnet 400 is disposed on the circular arc side plate of the first mounting groove 310, a group of holding grooves uniformly distributed in circumference are concavely disposed on the outer wall of the circular arc side plate, each outer magnet is disposed in one holding groove, and the outer magnet may be fixed in the holding groove by screwing, gluing, or by a collar sleeved on the outer periphery of the first mounting groove 310.
As shown in fig. 1 and 2, the seal housing 700 is coaxially and rotatably disposed in the first mounting groove 310, and includes a second protrusion 720 and a second mounting groove 730, the diameter of the second protrusion 720 is the same as that of the first protrusion 320, the second protrusion 720 is connected to the inner wall of the first mounting groove 310 through a second bearing 800, the second bearing 800 is coaxial with the first bearing and has the same outer diameter, and a mounting cavity 721 communicating with the cavity of the second mounting groove 730 is provided in the second protrusion 720.
As shown in fig. 1, the second rotor 900 is connected to the inside of the sealed housing 700 through a third bearing 001 and a fourth bearing 003, the third bearing 001 is connected to the inner end (the end near the driver) of the second rotor 900, and the fourth bearing 003 is connected to the outer end of the second rotor 900. Specifically, the second rotor 900 includes a first shaft body 910 and a second shaft body 920 that are coaxial, the diameter of the first shaft body 910 is smaller than the diameter of the second shaft body 920, the third bearing 001 is sleeved on the outer periphery of the first shaft body 910, the third bearing 001 is connected at the mounting cavity 721, the fourth bearing 003 is sleeved on the outer periphery of the second shaft body 920 and is close to the outer end of the sealing shell, and a connecting groove is concavely arranged at the center of the outer end surface of the second shaft body 920.
As shown in fig. 1, a third shaft body 930 is further disposed between the first shaft body 910 and the second shaft body 920, the diameter of the third shaft body 930 is located between the diameters of the first shaft body 910 and the second shaft body 920 and smaller than the outer diameter of the third bearing 001, the inner magnet 200 is fixed on the outer circumference of the second shaft body through a fixing sleeve 005 sleeved on the outer circumference of the second shaft body 920 and located between the third bearing 001 and the fourth bearing 003, meanwhile, the fixing sleeve 005 may have a clamping groove corresponding to each inner magnet, adjacent clamping grooves are separated from each other to ensure the position stability of each inner magnet, and the fixing sleeve 005 is fixedly connected with the second rotor, for example, in a threaded connection manner, and meanwhile, the outer circumference surface of the fixing sleeve 005 maintains a small gap with the inner wall of the sealing housing so as not to rub against rotation.
Of course, in another embodiment, as shown in fig. 3, a mounting portion 940 is formed on the periphery of the second shaft body 920, the outer diameter of the mounting portion 940 is equal to the outer diameter of the fourth bearing 003 and is located above the fourth bearing 003, a circle of equally-divided circumferential accommodating space 941 is formed at the mounting portion 940, and the accommodating spaces 941 are partially located at the second shaft body 920, each accommodating space 941 extends along the axial direction of the second shaft body 920 and is used for mounting the inner magnet, the accommodating space has at least an upper port, for example, the accommodating space is a rectangular parallelepiped groove extending downward from the top surface of the mounting portion, the upper end of the mounting portion 940 is screwed with a cover plate for shielding the upper port, the outer diameter of the cover plate does not exceed the outer diameter of the mounting portion, and the cover plate fixes the inner magnet in the accommodating space. More preferably, a rectangular perforation 942 is formed on one side of the accommodating space facing the outer magnet, and the width of the rectangular perforation is smaller than that of the inner magnet. The structure is convenient for the disassembly and assembly of the inner magnet and enables the inner magnet and the outer magnet to be better adsorbed.
The number of the inner magnets 200 and the outer magnets 400 is greater than four, preferably 8-12, and the length of the opposite surfaces of the inner magnets 200 and the outer magnets 400 facing each other is 30mm and the width is 10mm. More preferably, the inner magnet 200 and the outer magnet 400 each have a rectangular permanent magnet with a thickness of 5mm. This structure can achieve an output torque of 13Nm.
Example 2
The present embodiment discloses a magnetic coupling actuator, as shown in fig. 4, which comprises a housing 100, wherein a first rotor 300 is rotatably arranged in the housing 100, a seal housing 700 is coaxially arranged in the first rotor 300, relative rotation movement is provided between the seal housing 700 and the first rotor 300, a second rotor 900 is coaxially and rotatably arranged in the seal housing 700, a circle of inner magnet 200 surrounding the periphery of the axis of the second rotor 900 is arranged on the second rotor 900, a circle of outer magnet 400 surrounding the periphery of the inner magnet 200 is arranged on the first rotor 300, the inner magnet 200 corresponds to the outer magnet 400 one by one, the magnetic poles of the opposite sides of the pair of inner magnets 200 and the outer magnet 400 opposite to each other, and the seal housing 700 comprises a seal flange 710 positioned outside the second end of the housing 100.
The utility model has various embodiments, and all technical schemes formed by equivalent transformation or equivalent transformation fall within the protection scope of the utility model.
Claims (10)
1. The magnetic coupling driving device comprises a shell, wherein a first rotor is arranged in the shell in a autorotation manner, the first rotor is connected with a driver for driving the first rotor to autorotate, and the driver is arranged outside a first end of the shell, and is characterized in that: the sealing device comprises a shell, and is characterized in that a sealing shell is coaxially arranged in the first rotor, relative rotation movement is arranged between the sealing shell and the first rotor, a second rotor is coaxially arranged in the sealing shell and can rotate relative to the sealing shell, a circle of inner magnets is arranged on the circumferential surface of the second rotor, a circle of outer magnets surrounding the periphery of the inner magnets are arranged on the first rotor, the inner magnets are in one-to-one correspondence with the outer magnets, the magnetic poles of the opposite sides of a pair of inner magnets and the outer magnets, which are opposite in position, are opposite, and the sealing shell comprises a sealing flange positioned outside the second end of the shell.
2. The magnetically coupled drive of claim 1, wherein: the number of the inner magnets and the number of the outer magnets are larger than four.
3. The magnetically coupled drive of claim 2, wherein: the length of the opposite surfaces of the inner magnet and the outer magnet which are opposite to each other is 30mm, and the width is 10mm.
4. The magnetically coupled drive of claim 1, wherein: the first rotor comprises a coaxial first mounting groove and a first convex part, the inner diameter of the first mounting groove is larger than the diameter of the first convex part, the first convex part is connected with the inner wall of the shell through a first bearing, and the sealing shell is rotatably arranged in the first mounting groove.
5. The magnetically coupled drive of claim 4, wherein: the second convex part of the sealing shell is connected with the inner wall of the first mounting groove through a second bearing, and the second bearing is coaxial with the first bearing and has the same outer diameter.
6. A magnetically coupled drive as claimed in any one of claims 1 to 5, wherein: the second rotor is connected in the sealed shell through a third bearing and a fourth bearing, the third bearing is connected to the inner end of the second rotor, and the fourth bearing is connected to the outer end of the second rotor.
7. The magnetically coupled drive of claim 6, wherein: the second rotor comprises a first coaxial shaft body and a second coaxial shaft body, the diameter of the first shaft body is smaller than that of the second coaxial shaft body, the third bearing is sleeved on the periphery of the first coaxial shaft body, and the fourth bearing is sleeved on the periphery of the second coaxial shaft body.
8. The magnetically coupled drive of claim 7, wherein: the inner magnet is fixed on the outer periphery of the second shaft body through a fixing sleeve sleeved on the outer periphery of the second shaft body and positioned between the third bearing and the fourth bearing.
9. The magnetically coupled drive of claim 7, wherein: the periphery of the second shaft body is provided with a mounting part, a circle of accommodating spaces with equal circumference are formed at the mounting part, each accommodating space extends along the axial direction of the second shaft body and is used for mounting one inner magnet, the accommodating space is at least provided with an upper port, and the upper end of the mounting part is in threaded connection with a cover plate for shielding the upper port.
10. The utility model provides a magnetic coupling transmission, includes the shell, but be provided with first rotor in the shell rotation, its characterized in that: the sealing device comprises a shell, and is characterized in that a sealing shell is coaxially arranged in the first rotor, relative rotation movement is arranged between the sealing shell and the first rotor, a second rotor is coaxially arranged in the sealing shell and can rotate relative to the sealing shell, a circle of inner magnets is arranged on the circumferential surface of the second rotor, a circle of outer magnets surrounding the periphery of the inner magnets are arranged on the first rotor, the inner magnets are in one-to-one correspondence with the outer magnets, the magnetic poles of the opposite sides of a pair of inner magnets and the outer magnets, which are opposite in position, are opposite, and the sealing shell comprises a sealing flange positioned outside the second end of the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223227418.5U CN219041604U (en) | 2022-12-02 | 2022-12-02 | Magnetic coupling driving device and magnetic coupling driver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223227418.5U CN219041604U (en) | 2022-12-02 | 2022-12-02 | Magnetic coupling driving device and magnetic coupling driver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219041604U true CN219041604U (en) | 2023-05-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223227418.5U Active CN219041604U (en) | 2022-12-02 | 2022-12-02 | Magnetic coupling driving device and magnetic coupling driver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219041604U (en) |
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2022
- 2022-12-02 CN CN202223227418.5U patent/CN219041604U/en active Active
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