Rotor magnetic conductive ring mounting structure, magnetic suspension stirrer, rotor structure and assembling method thereof

Abstract

The invention belongs to the technical field of magnetic suspension, and particularly relates to a rotor magnetic conductive ring mounting structure, a magnetic suspension stirrer, a rotor structure and an assembly method thereof. The rotor magnetic conductive ring mounting structure comprises a rotor body, an accommodating space is arranged in the rotor body, a supporting table is connected to the rotor body and located in the accommodating space, a first mounting position and a second mounting position are formed on the two sides, in the axial direction of the rotor body, of the supporting table respectively, the first mounting position is used for positioning and mounting a first magnetic conductive ring, and the second mounting position is used for positioning and mounting a second magnetic conductive ring. The second mounting position is used for positioning and mounting the second magnetic conductive ring. The magnetic conductive ring can be split into the first magnetic conductive ring and the second magnetic conductive ring to be installed at the first installation position and the second installation position in a split mode, so that the length of the magnetic conductive ring can be reduced, the installation path of the magnetic conductive ring is shortened, and the difficulty of inserting the magnetic conductive ring is reduced; and after the insertion path is shortened, the risk that the magnetic conductive ring deflects relative to the rotor body in the insertion process of the magnetic conductive ring can be reduced, so that the insertion difficulty of the magnetic conductive ring can be reduced.

Description

Technical Field

[0001] The present application belongs to the field of magnetic levitation technology, and specifically relates to a rotor magnetic ring installation structure, a magnetic levitation agitator, a rotor structure and an assembly method thereof. Background Art

[0002] In the case of medicine, biology, chemistry and other industries that have strict requirements on the reaction environment, the use of traditional stirrers for stirring has at least the following problems: mechanical bearings require physical contact, and the abrasive particles generated by friction enter the product, affecting the purity of the product; friction generates heat, which has a greater impact on products prepared under low temperature conditions. For this reason, in the case of medicine, biology, chemistry and other industries that have strict requirements on the reaction environment, magnetic levitation stirrers are usually used for stirring in related technologies to eliminate the above problems of traditional stirrers.

[0003] In the related art, the rotor structure of the magnetic levitation agitator includes a rotor body and a magnetic ring, the magnetic ring is sleeved in the rotor body, a rotor permanent magnet is mounted on the magnetic ring, and the rotor permanent magnet cooperates with the stator structure to realize the rotation and suspension of the rotor body. However, in practice, it is not easy to assemble the magnetic ring into the rotor body, and the rotation stability of the rotor structure is poor. Summary of the invention

[0004] The purpose of the present application is to provide a rotor magnetic ring installation structure, a magnetic levitation agitator, a rotor structure and an assembly method thereof, which can solve the current problem that it is difficult to assemble the magnetic ring into the rotor body and the rotational stability of the rotor structure is poor.

[0005] In order to solve the above technical problems, this application is implemented as follows: In the first aspect, the present application provides a rotor magnetic ring mounting structure, which is applied to a magnetic levitation device, including a rotor body, a housing space is provided inside the rotor body, a support platform is connected to the rotor body, and the support platform is located in the housing space, and a first mounting position and a second mounting position are respectively formed on both sides of the support platform along the axial direction of the rotor body, the first mounting position is used to position and install the first magnetic ring, and the second mounting position is used to position and install the second magnetic ring.

[0006] In a second aspect, the present application provides a rotor structure, including a magnetic conductive component, a plurality of rotor permanent magnets, and the above-mentioned rotor magnetic conductive ring installation structure, wherein the magnetic conductive component includes a first magnetic conductive ring and a second magnetic conductive ring; The magnetic conductive component is provided with a plurality of second installation grooves spaced apart along the circumference of the rotor structure. The second installation grooves penetrate the first magnetic conductive ring and the second magnetic conductive ring along the axial direction of the rotor structure. Each rotor permanent magnet is respectively installed in a corresponding second installation groove.

[0007] In a third aspect, the present application provides a magnetic levitation agitator, comprising the above-mentioned rotor structure.

[0008] In a fourth aspect, the present application provides a method for assembling a rotor structure, which is used to manufacture the above-mentioned rotor structure, comprising: Assembling the first magnetic conductive ring into the first installation position along a first direction, wherein the first direction is parallel to the axial direction of the rotor structure; Installing the second magnetic conductive ring into the second installation position along the opposite direction of the first direction; Assemble each rotor permanent magnet into the corresponding second installation slot.

[0009] The beneficial technical effects of this application are as follows: In the present application, a support platform is connected to the rotor body, and the support platform can separate the installation position of the magnetic ring to form a first installation position and a second installation position. After adopting this structure, the magnetic ring can be split into the first magnetic ring and the second magnetic ring, so that the two can be installed separately in the first installation position and the second installation position, thereby reducing the length of the magnetic ring and shortening the installation path of the magnetic ring, thereby reducing the difficulty of inserting the magnetic ring; and after the insertion path is shortened, the risk of the magnetic ring being deflected relative to the rotor body during the process of inserting the magnetic ring can be reduced, thereby reducing the difficulty of inserting the magnetic ring.

[0010] In addition, the support platform can limit the position of the first magnetic conductive ring in its own insertion direction, and can limit the position of the second magnetic conductive ring in its own insertion direction. In this way, the support platform can ensure that the first magnetic conductive ring and the second magnetic conductive ring are located in the preset installation position, preventing the first magnetic conductive ring and the second magnetic conductive ring from being installed improperly or over-positioned, so as to ensure the rotational stability of the rotor structure.

[0011] Furthermore, since a support platform is provided inside the rotor body, the support platform can provide a connection basis for the screws arranged along the axial direction. At this time, the screws no longer need to penetrate the rotor body radially, but can be inserted into the rotor body axially to fix the first magnetic ring and the second magnetic ring on the support platform. This can ensure the smoothness of the outer peripheral surface of the rotor body, which is beneficial for the rotor structure to stir the material. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 An exploded schematic diagram of a rotor structure disclosed in an embodiment of the present application; Figure 2 A partial schematic diagram of a rotor structure disclosed in an embodiment of the present application; Figure 3 It is an exploded schematic diagram of a partial structure of a rotor structure disclosed in an embodiment of the present application; Figure 4 For this application Figure 3 The enlarged schematic diagram of point A in the middle; Figure 5 For this application Figure 3 The enlarged schematic diagram of point B in the middle; Figure 6 It is a schematic diagram of the assembly of the rotor body and the support platform disclosed in the embodiment of the present application; Figure 7 A schematic diagram of the structure of a first magnet disclosed in an embodiment of the present application; Figure 8 A schematic diagram of the structure of the second magnet disclosed in an embodiment of the present application; Fig. 9 This is a schematic diagram of the structure of the magnetic levitation agitator disclosed in the embodiment of the present application.

[0013] Description of reference numerals: 100, rotor body; 101, accommodating space; 102, first mounting position; 103, second mounting position; 104, first mounting groove; 200, support platform; 210, avoidance groove; 220, mounting protrusion; 300, magnetic conductive component; 301, second mounting groove; 3011, first sub-groove; 3012, second sub-groove; 302, first plane; 303, first arc-shaped surface; 304, second plane; 310, first magnetic conductive ring; 320, second magnetic conductive ring; 321, foolproof protrusion; 3211, first protrusion; 3212, second protrusion; 400, rotor permanent magnet; 410, deformation groove; 411, first deformation groove; 412, second deformation groove; 420, first magnet; 430, second magnet; 500, stator structure; 600, material container; 610, container body; 620, cover body. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0015] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0016] In conjunction with the accompanying drawings, the rotor magnetic ring installation structure, the magnetic levitation agitator, the rotor structure and the assembly method thereof provided in the embodiments of the present application are described in detail below through specific embodiments and their application scenarios.

[0017] The inventors have found that the magnetic ring in the related technology is an integrated structure, and the magnetic ring is interference-fitted into the rotor body. The magnetic ring and the rotor body have a certain length in their own axial direction. Therefore, the insertion path of the magnetic ring is longer. The longer the insertion path, the more difficult it is to insert the magnetic ring into place. When the insertion path becomes longer, the risk of the magnetic ring being tilted relative to the rotor body will increase, thereby causing the magnetic ring and the rotor body to be stuck with each other. Obviously, this will also increase the difficulty of installing the magnetic ring.

[0018] In addition, the magnetic suspension device has high requirements for the installation accuracy of the magnetic ring. If the magnetic ring is not installed in place or is over-installed in the axial direction, it will cause uneven magnetic field distribution and misalignment between the center of gravity and the geometric center of the rotor structure, which will reduce the rotational stability of the rotor structure. The relevant technology is to assemble the magnetic ring based on the experience of the installer, which can easily cause the magnetic ring to be installed in place or over-installed, resulting in poor rotational stability of the rotor structure.

[0019] Furthermore, in order to further ensure the fixing stability of the magnetic ring, the related technology also radially inserts screws from the outside of the rotor body to further firmly fix the magnetic ring and the rotor body, but this will make the outer circumferential surface of the rotor body have poor smoothness, which is not conducive to the rotor structure to stir materials.

[0020] like Figure 3 As shown, the embodiment of the present application discloses a rotor magnetic ring installation structure, which is applied to a magnetic suspension device, including a rotor body 100, wherein a receiving space 101 is provided inside the rotor body 100, a support platform 200 is connected to the rotor body 100, and the support platform 200 is located in the receiving space 101, and the two sides of the support platform 200 along the axial direction of the rotor body 100 respectively form a first installation position 102 and a second installation position 103, wherein the first installation position 102 is used for positioning and installing the first magnetic ring 310, and the second installation position 103 is used for positioning and installing the second magnetic ring 320. Specifically, the first magnetic ring 310 and the second magnetic ring 320 here can both abut against the support platform 200, and when the first magnetic ring 310 abuts against the support platform 200, it means that the first magnetic ring 310 is installed to a preset position, so that the first magnetic ring 310 can be prevented from being installed inadequately or over-installed; the second magnetic ring 320 is similar, and will not be described here.

[0021] Exemplarily, the axial heights of the first installation position 102 and the second installation position 103 may be equal, and in this case, the axial heights of the first magnetic conductive ring 310 and the second magnetic conductive ring 320 are equal, which is more conducive to assembling the first magnetic conductive ring 310 and the second magnetic conductive ring 320 .

[0022] In the present application, a support platform 200 is connected to the rotor body 100, and the support platform 200 can separate the installation positions for installing the magnetic ring, thereby forming a first installation position 102 and a second installation position 103. After adopting this structure, the magnetic ring can be split into a first magnetic ring 310 and a second magnetic ring 320, so that the two can be installed separately in the first installation position 102 and the second installation position 103, thereby reducing the length of the magnetic ring and shortening the installation path of the magnetic ring, thereby reducing the difficulty of inserting the magnetic ring; and after the insertion path is shortened, the risk of the magnetic ring being deflected relative to the rotor body 100 during the process of inserting the magnetic ring can be reduced, thereby reducing the difficulty of inserting the magnetic ring.

[0023] In addition, the support platform 200 can limit the position of the first magnetic ring 310 in its own insertion direction, and can limit the position of the second magnetic ring 320 in its own insertion direction. In this way, the support platform 200 can ensure that the first magnetic ring 310 and the second magnetic ring 320 are located in the preset installation position, preventing the first magnetic ring 310 and the second magnetic ring 320 from being installed improperly or over-positioned, so as to ensure the rotational stability of the rotor structure.

[0024] Furthermore, since a support platform 200 is provided inside the rotor body 100, the support platform 200 can provide a connection basis for the screws arranged along the axial direction. At this time, the screws no longer need to penetrate the rotor body 100 radially, but can be inserted axially into the rotor body 100 to fix the first magnetic ring 310 and the second magnetic ring 320 on the support platform 200. This can ensure the smoothness of the outer peripheral surface of the rotor body 100, so as to facilitate the rotor structure to stir the material.

[0025] In an optional embodiment, the support platform 200 and the rotor body 100 are separately provided, and the support platform 200 is made of a magnetic conductive material, which can make the support platform 200 have excellent magnetic flux, thereby reducing magnetic leakage loss and increasing magnetic flux, thereby improving the suspension performance and rotation performance of the rotor body 100. Of course, the support platform 200 and the rotor body 100 can also be provided as one body, in which case the support platform 200 and the rotor body 100 can also be made of non-magnetic conductive materials such as aluminum.

[0026] See also Figure 3 In an optional embodiment, the support platform 200 is annular, and is provided with a plurality of avoidance grooves 210 spaced apart along its circumference, and the avoidance grooves 210 are used to avoid the rotor permanent magnets 400. It should be noted that this embodiment can be implemented independently from the next embodiment.

[0027] In this embodiment, the support platform 200 is annular, and the annular support platform 200 has a large extension length in its own circumferential direction, which can increase the support area of ​​the support platform 200 for the first magnetic conductive ring 310 and the second magnetic conductive ring 320, so as to improve the support stability of the support platform 200 for the first magnetic conductive ring 310 and the second magnetic conductive ring 320; furthermore, after the extension length of the support platform 200 is increased, the magnetic flux of the support platform 200 is further improved, which can further reduce the leakage magnetic loss and improve the magnetic flux.

[0028] In order to prevent the support platform 200 from interfering with the rotor permanent magnet 400, the present embodiment provides a plurality of avoidance grooves 210 on the support platform 200, and the avoidance grooves 210 are used for the rotor permanent magnet 400 to pass through. It should be noted that the present application does not limit the structure of the avoidance grooves 210, as long as they can be used to pass through the rotor permanent magnet 400; illustratively, the structure of the avoidance grooves 210 can be consistent with the structure of the second mounting groove 301 described below.

[0029] Of course, in some other implementations, the support platform 200 may not be ring-shaped. In this case, the support platform 200 may include a plurality of arc-shaped support segments arranged at intervals, and the space between two adjacent arc-shaped support segments is used to avoid the rotor permanent magnet 400, or the support platform 200 may include a plurality of point-shaped support protrusions arranged at intervals, and the space between two adjacent support protrusions is used to avoid the rotor permanent magnet 400.

[0030] See also Figure 4 In a further embodiment, in order to improve the connection stability between the support platform 200 and the rotor body 100, a first mounting groove 104 is provided on the rotor body 100, and a mounting protrusion 220 is provided on the support platform 200, and each mounting protrusion 220 is respectively overlapped on the groove wall of the corresponding first mounting groove 104. Exemplarily, the number of the first mounting grooves 104 here can be at least two, and at least two first mounting grooves 104 are spaced apart along the circumference of the rotor body 100. In this case, the number of the mounting protrusions 220 is also at least two, and at least two mounting protrusions 220 are spaced apart along the circumference of the support platform 200.

[0031] In this embodiment, the mounting protrusion 220 overlaps the groove wall of the corresponding first mounting groove 104, that is, the mounting protrusion 220 and the groove wall of the first mounting groove 104 are matched in the upper limit position of the insertion direction of the support platform 200, that is, the groove wall of the first mounting groove 104 can provide support for the support platform 200, which can improve the connection stability between the support platform 200 and the rotor body 100.

[0032] Optionally, the first installation groove 104 may extend to the end surface of the rotor body 100 and form an entrance at the end surface, so that the installation protrusion 220 can easily enter the first installation groove 104 from the entrance, thereby achieving the installation of the support platform 200.

[0033] In a further embodiment, the first mounting groove 104 extends to the middle position of the rotor body 100 along its own axial direction, so that the axial heights of the first mounting position 102 and the second mounting position 103 are equal, which is more conducive to the assembly of the first magnetic ring 310 and the second magnetic ring 320; and the groove wall of the first mounting groove 104 can stop and limit the mounting protrusion 220, which allows the support platform 200 to be accurately installed to the preset position.

[0034] like Figures 1 to 8 As shown, the embodiment of the present application also discloses a rotor structure, including a magnetic conductive component 300, a plurality of rotor permanent magnets 400, and a rotor magnetic conductive ring installation structure described in any of the above embodiments, so that the rotor structure has the beneficial effects of the above rotor magnetic conductive ring installation structure, which will not be repeated here, and the magnetic conductive component 300 includes a first magnetic conductive ring 310 and a second magnetic conductive ring 320. Specifically, the axial length of the first magnetic conductive ring 310 and the second magnetic conductive ring 320 here is relatively small, so the installation path of the first magnetic conductive ring 310 and the second magnetic conductive ring 320 can be shortened, so that the two can be easily installed in the rotor body 100.

[0035] The magnetic conductive assembly 300 is provided with a plurality of second installation grooves 301 spaced apart along the circumferential direction of the rotor structure, the second installation grooves 301 penetrate the first magnetic conductive ring 310 and the second magnetic conductive ring 320 along the axial direction of the rotor structure, and each rotor permanent magnet 400 is respectively installed in the corresponding second installation groove 301. Specifically, the rotor permanent magnet 400 cooperates with the stator structure 500 to realize the suspension and rotation of the rotor body 100.

[0036] The second mounting groove 301 here may include a first sub-groove 3011 and a second sub-groove 3012. The first sub-groove 3011 is provided on the first magnetic conductive ring 310, and the first sub-groove 3011 penetrates the first magnetic conductive ring 310 along the axial direction of the rotor structure; the second sub-groove 3012 is provided on the second magnetic conductive ring 320, and the second sub-groove 3012 penetrates the second magnetic conductive ring 320 along the axial direction of the rotor structure; the first sub-groove 3011 is provided corresponding to the second sub-groove 3012, and the two are coaxial. When this embodiment is combined with the embodiment below that "the inner wall of the second mounting groove 301 includes the first plane 302, the first arcuate surface 303 and the second plane 304 connected in sequence", at least one of the inner wall of the first sub-groove 3011 and the inner wall of the second sub-groove 3012 may include the above-mentioned first plane 302, the first arcuate surface 303 and the second plane 304.

[0037] See also Figure 2, Figure 7 and Figure 8 In an optional embodiment, a deformation groove 410 is provided on the rotor permanent magnet 400, and the deformation groove 410 extends from one end surface of the rotor permanent magnet 400 toward the direction close to the other end surface, and the notch of the deformation groove 410 faces the inner wall of the corresponding second installation groove 301. Exemplarily, the deformation groove 410 here may penetrate the rotor permanent magnet 400, or may not penetrate the rotor permanent magnet 400.

[0038] In this embodiment, a deformation groove 410 is provided on the rotor permanent magnet 400, and the deformation groove 410 extends to the outer peripheral surface of the rotor permanent magnet 400, and the notch of the deformation groove 410 faces the inner wall of the second installation groove 301. After the deformation groove 410 is provided, the rigidity of the rotor permanent magnet 400 will be reduced, and the deformation groove 410 can provide an escape space for the deformation of the rotor permanent magnet 400. When the rotor permanent magnet 400 is inserted into the second installation groove 301, if the rotor permanent magnet 400 is deflected relative to the second installation groove 301, so that a large force is generated between the rotor permanent magnet 400 and the second installation groove 301, the squeezed part of the rotor permanent magnet 400 will be elastically deformed toward the deformation groove 410, so that the rotor permanent magnet 400 passes over the second installation groove 301 where it interferes with it. Obviously, this is more conducive to inserting the rotor permanent magnet 400 into place. It can be seen that after adopting the structure of this embodiment, it is easier to assemble the rotor permanent magnet 400 into the deformation groove 410. Please continue reading Figure 2 In an optional embodiment, the deformation groove 410 includes a first deformation groove 411 and a second deformation groove 412, and the first deformation groove 411 and the second deformation groove 412 are alternately distributed on the plurality of rotor permanent magnets 400. Generally speaking, the outer dimensions of two adjacent rotor permanent magnets 400 are the same, but the magnetic poles are opposite. Therefore, if two adjacent rotor permanent magnets 400 are assembled misaligned, the magnetic poles will be disordered, which is not conducive to the suspension and rotation of the rotor body 100. Exemplarily, the rotor permanent magnet 400 includes a first magnet 420 and a second magnet 430, and the first magnet 420 and the second magnet 430 are alternately distributed along the circumference of the rotor structure. Generally speaking, the outer dimensions of the first magnet 420 and the second magnet 430 are the same, but the magnetic poles are opposite.

[0039] The magnetic conductive component 300 or the rotor magnetic conductive ring mounting structure is provided with an anti-foolproof protrusion 321. Exemplarily, the anti-foolproof protrusion 321 can be provided on at least one of the first magnetic conductive ring 310, the second magnetic conductive ring 320, the rotor body 100 and the support platform 200. The anti-foolproof protrusion 321 includes a plurality of first protrusions 3211 and a plurality of second protrusions 3212. The first protrusions 3211 and the second protrusions 3212 are alternately distributed in the circumferential direction of the rotor structure. The first protrusion 3211 is in contact with the groove wall of the first deformation groove 411, and the second protrusion 3212 is in contact with the groove wall of the second deformation groove 412.

[0040] The shape of the first bump 3211 is different from the shape of the second bump 3212, and / or the number of the first bump 3211 is different from the number of the second bump 3212; and / or the setting position of the first bump 3211 is different from the setting position of the second bump 3212. For example, Figure 2 As shown, the number of the first protrusion 3211 and the first deformation groove 411 can be one, and the number of the second protrusion 3212 and the second deformation groove 412 can be two.

[0041] In order to prevent the assembly misalignment of two adjacent rotor permanent magnets 400, in this embodiment, a first deformation groove 411 is provided in one of the two adjacent rotor permanent magnets 400, and a second deformation groove 412 is provided in the other, and then a first protrusion 3211 matching with the first deformation groove 411 and a second protrusion 3212 matching with the second deformation groove 412 are provided on the magnetic conductive component 300 or the rotor magnetic conductive ring mounting structure, and at least one of the shape, number and setting position of the first protrusion 3211 is consistent with the second protrusion 3212. 12, that is, the "rotor permanent magnet 400 provided with the second deformation groove 412" which does not match the first protrusion 3211 cannot be assembled to the "assembly position of the rotor permanent magnet 400 provided with the first deformation groove 411", and the "rotor permanent magnet 400 provided with the first deformation groove 411" which does not match the second protrusion 3212 cannot be assembled to the "assembly position of the rotor permanent magnet 400 provided with the second deformation groove 412", which can achieve foolproofing, that is, prevent the assembly misalignment of two adjacent rotor permanent magnets 400. It can be seen that the deformation groove 410 of this embodiment can not only facilitate the assembly of the rotor permanent magnet 400, but also prevent the misalignment of two adjacent rotor permanent magnets 400, thereby achieving the purpose of one object for multiple uses.

[0042] In an optional embodiment, the first magnetic ring 310 and the second magnetic ring 320 are distributed in sequence along the insertion direction of the rotor permanent magnet 400, and the anti-fool bump 321 is arranged on the second magnetic ring 320, which can increase the cross-sectional area of ​​the second magnetic ring 320, so that it has a better magnetic flux, reduces leakage magnetic loss and improves magnetic flux, and improves the suspension performance and rotation performance of the rotor body 100; and the second magnetic ring 320 is located at the end of the insertion direction of the rotor permanent magnet 400, that is, when the rotor permanent magnet 400 is just inserted into the second installation groove 301, the anti-fool bump 321 on the second magnetic ring 320 does not cooperate with the deformation groove 410, at this time, the anti-fool bump 321 will not hinder the deformation of the rotor permanent magnet 400, that is, the anti-fool bump 321 is arranged on the second magnetic ring 320 and does not reduce the deformation performance of the rotor permanent magnet 400, so as to facilitate the insertion of the rotor permanent magnet 400.

[0043] See also Figure 4 In an optional embodiment, the inner wall of the second installation groove 301 includes a first plane 302, a first curved surface 303, and a second plane 304 connected in sequence, the first curved surface 303 is located between the first plane 302 and the second plane 304, and the angle between the first plane 302 and the second plane 304 is an acute angle. Specifically, since the rotor permanent magnet 400 will fit with the inner wall of the second installation groove 301, the rotor permanent magnet 400 has a third plane that fits with the first plane 302, a fourth plane that fits with the second plane 304, and a second curved surface that fits with the first curved surface 303.

[0044] In this embodiment, a first plane 302 and a second plane 304 are respectively provided on both sides of the first arcuate surface 303, and the angle between the first plane 302 and the second plane 304 is an acute angle, which will gradually reduce the cross-sectional area of ​​the second mounting groove 301 in the direction extending from the bottom of the groove to the groove mouth, thereby forming an anti-slip structure, that is, the rotor permanent magnet 400 cooperates with the second mounting groove 301 in the radial upper limit position to prevent the rotor permanent magnet 400 from radially detaching from the second mounting groove 301, so as to ensure the stability of the rotor permanent magnet 400 after assembly.

[0045] And / or, in an optional embodiment, the first magnetic ring 310 and the second magnetic ring 320 are both interference fit with the rotor body 100, and the rotor permanent magnet 400 is interference fit with the second mounting groove 301, which can further improve the connection stability between the first magnetic ring 310 and the second magnetic ring 320 and the rotor body 100 respectively, and further improve the connection stability between the rotor permanent magnet 400 and the second mounting groove 301.

[0046] like Figure 8As shown, the embodiment of the present application also discloses a magnetic levitation agitator, including the rotor structure described in any of the above embodiments, so that the magnetic levitation agitator has the beneficial effects of the above rotor structure, which will not be repeated here. Furthermore, the magnetic levitation agitator also includes a stator structure 500, and the rotor structure is mounted on the outside of the stator structure 500, and the rotor structure is used to drive the stator structure 500 to suspend and rotate. The stator structure 500 can be fixed in a material container 600, and the material container 600 includes a container body 610 and a cover body 620, and the cover body 620 is used to seal the container body 610.

[0047] The present application also discloses an assembly method of a rotor structure, which is used to manufacture the rotor structure described in any of the above embodiments, comprising: S100, assembling the first magnetic conductive ring 310 into the first installation position 102 along a first direction, wherein the first direction is parallel to the axial direction of the rotor structure.

[0048] S200 , assembling the second magnetic conductive ring 320 into the second installation position 103 along the opposite direction of the first direction.

[0049] S300 , assembling each rotor permanent magnet 400 into the corresponding second installation slot 301 .

[0050] In the present application, a support platform 200 is connected to the rotor body 100, and the support platform 200 can separate the installation positions for installing the magnetic ring, thereby forming a first installation position 102 and a second installation position 103. After adopting this structure, the magnetic ring can be split into a first magnetic ring 310 and a second magnetic ring 320, which can be separately installed in the first installation position 102 and the second installation position 103, thereby reducing the length of the magnetic ring and shortening the installation path of the magnetic ring, thereby reducing the difficulty of inserting the magnetic ring; and after the insertion path is shortened, the risk of the magnetic ring being deflected relative to the rotor body 100 during the process of inserting the magnetic ring can be reduced, thereby reducing the difficulty of inserting the magnetic ring.

[0051] The above embodiments of the present application focus on the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. Considering the simplicity of the text, they will not be repeated here. The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the enlightenment of the present application, ordinary technicians in this field can also make many forms without departing from the scope of protection of the purpose of the present application and the claims, all of which are within the protection of the present application.

Claims

1. A rotor magnetic ring installation structure, applied to a magnetic suspension device, characterized in that: The invention comprises a rotor body (100), wherein a receiving space (101) is provided inside the rotor body (100), a support platform (200) is connected to the rotor body (100), and the support platform (200) is located in the receiving space (101), and two sides of the support platform (200) along the axial direction of the rotor body (100) respectively form a first mounting position (102) and a second mounting position (103), wherein the first mounting position (102) is used for positioning and installing a first magnetic conductive ring (310), and the second mounting position (103) is used for positioning and installing a second magnetic conductive ring (320).

2. The rotor magnetic ring installation structure according to claim 1, characterized in that: The support platform (200) and the rotor body (100) are arranged separately, and the support platform (200) is made of magnetic conductive material.

3. The rotor magnetic ring installation structure according to claim 2, characterized in that: The support platform (200) is annular, and is provided with a plurality of avoidance grooves (210) distributed at intervals along the support platform (200) itself, the avoidance grooves (210) being used to avoid the rotor permanent magnets (400); The rotor body (100) is provided with a first mounting groove (104), the support platform (200) is provided with a mounting protrusion (220), and each mounting protrusion (220) is overlapped on a groove wall of a corresponding first mounting groove (104); The first installation groove (104) extends to a middle position of the rotor body (100) along its own axial direction.

4. A rotor structure, characterized in that: It comprises a magnetic conductive component (300), a plurality of rotor permanent magnets (400), and a rotor magnetic conductive ring mounting structure according to any one of claims 1 to 3, wherein the magnetic conductive component (300) comprises the first magnetic conductive ring (310) and the second magnetic conductive ring (320); The magnetic conductive component (300) is provided with a plurality of second installation grooves (301) spaced apart along the circumferential direction of the rotor structure, the second installation grooves (301) penetrate the first magnetic conductive ring (310) and the second magnetic conductive ring (320) along the axial direction of the rotor structure, and each of the rotor permanent magnets (400) is respectively installed in a corresponding second installation groove (301).

5. The rotor structure according to claim 4, characterized in that: The rotor permanent magnet (400) is provided with a deformation groove (410), the deformation groove (410) extending from one end surface of the rotor permanent magnet (400) in a direction close to the other end surface, and the notch of the deformation groove (410) faces the inner wall of the corresponding second installation groove (301).

6. The rotor structure according to claim 5, characterized in that: The deformation groove (410) comprises a first deformation groove (411) and a second deformation groove (412), and the first deformation groove (411) and the second deformation groove (412) are alternately distributed on the plurality of rotor permanent magnets (400); The magnetic conductive component (300) or the rotor magnetic conductive ring mounting structure is provided with an anti-fool-proofing protrusion (321), the anti-fool-proofing protrusion (321) comprising a plurality of first protrusions (3211) and a plurality of second protrusions (3212), the first protrusions (3211) and the second protrusions (3212) being alternately distributed in the circumferential direction of the rotor structure, the first protrusions (3211) being in contact with the groove wall of the first deformation groove (411), and the second protrusions (3212) being in contact with the groove wall of the second deformation groove (412); The shape of the first bump (3211) is different from the shape of the second bump (3212), and / or the number of the first bump (3211) is different from the number of the second bump (3212); and / or the setting position of the first bump (3211) is different from the setting position of the second bump (3212).

7. The rotor structure according to claim 6, characterized in that: The first magnetic conductive ring (310) and the second magnetic conductive ring (320) are sequentially distributed along the insertion direction of the rotor permanent magnet (400), and the foolproof protrusion (321) is provided on the second magnetic conductive ring (320).

8. The rotor structure according to claim 4, characterized in that: The inner wall of the second mounting groove (301) comprises a first plane (302), a first curved surface (303) and a second plane (304) which are connected in sequence, the first curved surface (303) is located between the first plane (302) and the second plane (304), and the angle between the first plane (302) and the second plane (304) is an acute angle; and / or, The first magnetic conductive ring (310) and the second magnetic conductive ring (320) are both interference-fitted with the rotor body (100), and the rotor permanent magnet (400) is interference-fitted with the second installation groove (301).

9. A magnetic levitation stirrer, characterized in that: Comprising the rotor structure according to any one of claims 4 to 8.

10. A method for assembling a rotor structure, for manufacturing a rotor structure as claimed in any one of claims 4 to 8, characterized in that: include: Assembling the first magnetic conductive ring (310) into the first installation position (102) along a first direction, wherein the first direction is parallel to the axial direction of the rotor structure; Installing the second magnetic conductive ring (320) into the second installation position (103) along a direction opposite to the first direction; Each of the rotor permanent magnets (400) is assembled into the corresponding second installation slot (301).

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