CN114334345B - Assembling device and assembling method for annular permanent magnet - Google Patents
Assembling device and assembling method for annular permanent magnet Download PDFInfo
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- CN114334345B CN114334345B CN202111546372.0A CN202111546372A CN114334345B CN 114334345 B CN114334345 B CN 114334345B CN 202111546372 A CN202111546372 A CN 202111546372A CN 114334345 B CN114334345 B CN 114334345B
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Abstract
The invention discloses an assembling device and an assembling method of annular permanent magnets, wherein the assembling device comprises a top plate and a support, the top plate and the support are detachably and fixedly connected, a magnetic steel mounting structure is arranged between the top plate and the support and can rotate relative to the support, an annular magnetic steel mounting groove is formed in the magnetic steel mounting structure and used for placing a fan-shaped permanent magnet, the top plate and the magnetic steel mounting groove jointly limit the fan-shaped permanent magnet to move axially along the magnetic steel mounting structure, the top plate is provided with a top plate magnetic steel groove used for placing the fan-shaped permanent magnet, the top plate magnetic steel groove is detachably and fixedly connected with a top plate cover plate, and the top plate cover plate is used for limiting the fan-shaped permanent magnet to move axially along the magnetic steel mounting structure. Adopt detachable connected mode between each part, the annular permanent magnet assembles the removable device of assembling of completion back to do not restrict annular permanent magnet's application, and assemble the device and can reuse, assemble the wholeness of the annular permanent magnet of completion good, reduced the degree of difficulty of magnetizing.
Description
Technical Field
The invention relates to the technical field of permanent magnets, in particular to an assembling device and an assembling method of an annular permanent magnet.
Background
In the existing industrial application process of the permanent magnet, the annular permanent magnet is inevitably needed. Because the middle of the annular permanent magnet is provided with the hole, the annular permanent magnet is difficult to magnetize, and if a method of magnetizing before drilling is adopted, the processing difficulty after magnetizing is high; if the magnet is magnetized after being processed, the magnetizing direction is difficult to be consistent with the original required magnetizing direction after the magnet is magnetized, the magnetizing cost is high, and particularly, the radial magnet ring has higher difficulty and higher cost. For large ring-shaped permanent magnets, the difficulty and cost of machining are also higher.
At present, no large radial magnetic ring exists in the market temporarily, and although an axial magnetic ring exists, the selling price of the axial magnetic ring is more than three times higher than that of a fan-shaped permanent magnet with the same size. In the existing magnetic ring assembly technology, the repulsive force between the single fan-shaped permanent magnets in the installation process is not considered, the actual implementation is difficult, and in the actual installation process, a special device is needed to overcome the repulsive force between the fan-shaped permanent magnets; the existing method only considers that the fan-shaped permanent magnets are assembled into the annular permanent magnets in a special device, and how to disassemble the installation device is not provided, so that the installation device cannot be recycled, and the efficiency is low; the existing ring magnet is only applied to the technical field of ion thrusters at present because the installation device can not be detached.
Disclosure of Invention
The invention aims to: aiming at the problems in the prior art, the assembling device and the assembling method of the annular permanent magnet are provided, the repulsive force between the fan-shaped permanent magnets can be overcome, the fan-shaped permanent magnet can be recycled, the ring-shaped permanent magnet can be used for installation and use in various environments, and the magnetizing difficulty is greatly reduced.
In order to achieve the purpose, the invention adopts the technical scheme that:
the utility model provides a device of assembling of annular permanent magnet, includes roof and support, the roof with the detachable fixed connection of support, the roof with be equipped with magnet steel mounting structure between the support, magnet steel mounting structure can for the support rotates, be equipped with annular magnet steel mounting groove in the magnet steel mounting structure, the magnet steel mounting groove is used for placing fan-shaped permanent magnet, the roof with the common restriction of magnet steel mounting groove fan-shaped permanent magnet is followed magnet steel mounting structure axial motion, roof magnetism steel slot has been seted up to the roof, roof magnetism steel slot is used for putting into fan-shaped permanent magnet, the detachable fixed connection roof apron in roof magnetism steel slot, the roof apron is used for the restriction fan-shaped permanent magnet is followed magnet steel mounting structure axial motion.
According to the assembling device for the annular permanent magnet, the components are connected in a detachable mode, and the assembling device can be detached after the annular permanent magnet is assembled, so that the application field of the annular permanent magnet is not limited, the application range of the annular permanent magnet is expanded, the assembling device can be repeatedly used, and the assembling device is more environment-friendly. The annular magnetic steel mounting groove and the top plate are arranged, so that the sector permanent magnets can be limited from moving axially along the magnetic steel mounting structure, the repulsive force between the sector permanent magnets is overcome, the assembly difficulty is reduced, the integrity of the annular permanent magnets is good after the assembly is finished, the annular permanent magnets can be used for being mounted and used in various environments, and the magnetizing difficulty is greatly reduced, particularly in the radial magnetizing direction, the 45-degree magnetizing direction and the like.
As a preferable scheme of the invention, the magnetic steel mounting structure is rotationally connected with the top plate or the support through a rotary connecting piece.
As a preferred scheme of the present invention, the magnetic steel mounting structure includes a bottom plate, an inner wall, and an outer wall, the bottom plate, the inner wall, and the outer wall together enclose the magnetic steel mounting groove, and the inner wall and the outer wall are respectively detachably and fixedly connected to the bottom plate.
In a preferred embodiment of the present invention, the bottom plate is provided with a floor groove, the floor groove is provided with an inner ring and/or an outer ring, the inner ring is disposed in close contact with the outer edge of the inner wall, and the outer ring is disposed in close contact with the inner edge of the outer wall. The floor groove is used for positioning the inner side ring and/or the outer side ring, and the inner side ring is used for determining the inner diameter of the final magnetic ring and limiting the inner diameter of the fan-shaped permanent magnet; in addition, the inner side ring and the fan-shaped permanent magnet are adhered together through an adhesive, so that the magnetic ring is not scattered; the outer ring is used for determining the outer diameter of the final magnetic ring and limiting the outer diameter of the fan-shaped permanent magnet; in addition, the outer ring and the fan-shaped permanent magnet are adhered together through an adhesive, so that the magnetic ring cannot be scattered.
As a preferable scheme of the invention, the outer diameter of the top plate is larger than the outer diameter of the magnetic steel mounting groove, the top plate is provided with a plurality of top plate glue coating grooves, the top plate glue coating grooves are communicated with the magnetic steel mounting groove, the top plate magnetic steel groove is a fan-shaped groove, the outer diameter of the top plate magnetic steel groove is larger than the outer diameter of the magnetic steel mounting groove, and the inner diameter of the top plate magnetic steel groove is smaller than the inner diameter of the magnetic steel mounting groove. At the moment, the axial limit of the fan-shaped permanent magnets is better, and the repulsive force among the fan-shaped permanent magnets can be better overcome.
As a preferable scheme of the present invention, the outer diameter of the top plate is smaller than the outer diameter of the magnetic steel mounting groove, and the outer diameter of the top plate is larger than the inner diameter of the magnetic steel mounting groove, the top plate magnetic steel groove is a fan-shaped groove, the outer diameter of the top plate magnetic steel groove is larger than the inner diameter of the magnetic steel mounting groove, and the inner diameter of the top plate magnetic steel groove is smaller than the inner diameter of the magnetic steel mounting groove. The structure is simpler this moment, assembles comparatively conveniently.
The invention also discloses an assembling method of the annular permanent magnet, which adopts any assembling device of the annular permanent magnet and comprises the following steps:
the method comprises the following steps: fixing the support, and mounting the magnetic steel mounting structure on the support so that the magnetic steel mounting structure can rotate relative to the support;
step two: the top plate is fixedly connected above the support;
step three: 1 fan-shaped permanent magnet is placed in the magnetic steel mounting groove through the top plate magnetic steel groove;
step four: rotating the magnetic steel mounting structure to enable the top plate to restrain the placed fan-shaped permanent magnet to move axially along the magnetic steel mounting structure;
step five: continuously putting the rest of the fan-shaped permanent magnets through the top plate magnetic steel groove, and repeating the step four once when one fan-shaped permanent magnet is put;
step six: after the last sector permanent magnet is placed in the top plate, the top plate cover plate is fixedly connected above the top plate magnetic steel groove;
step seven: and gluing and bonding the fan-shaped permanent magnet.
The assembling method of the annular permanent magnet is simple, high in assembling precision and capable of realizing repeated utilization of the assembling device.
As a preferred scheme of the present invention, in the first step, the magnetic steel mounting structure is assembled first, and then the magnetic steel mounting structure is mounted on the support, specifically including: assembling the bottom plate, the inner wall and the outer wall to form the magnetic steel mounting groove, placing the floor groove, the inner side ring and the outer side ring into the magnetic steel mounting groove, and finally rotationally connecting the magnetic steel mounting structure with the support through a rotational connecting piece;
and seventhly, coating adhesives among the fan-shaped permanent magnets, between the fan-shaped permanent magnets and the inner side ring and between the fan-shaped permanent magnets and the outer side ring through the glue coating grooves of the top plate, and bonding the fan-shaped permanent magnets and the outer side ring together.
During the concrete assembly, can set up one or more in inboard ring, outside ring, the floor groove according to actual demand, also can not install one additional.
As a preferable scheme of the present invention, in the fifth step, when the number of the put fan-shaped permanent magnets is more than half, a gap between 2 adjacent fan-shaped permanent magnets right below the top plate magnetic steel slot is expanded by an expanding device, and 1 fan-shaped permanent magnet is continuously put into the gap.
As a preferable embodiment of the present invention, the method further comprises the step eight: after the fan-shaped permanent magnets are bonded, the top plate is detached, and the annular permanent magnets formed by the fan-shaped permanent magnets are pushed out of the magnetic steel mounting groove by a pushing device; or the parts of the magnetic steel mounting structure are removed, and then the annular permanent magnet consisting of the fan-shaped permanent magnets is taken out.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. according to the assembling device for the annular permanent magnet, the components are connected in a detachable mode, and the assembling device can be detached after the annular permanent magnet is assembled, so that the application field of the annular permanent magnet is not limited, the application range of the annular permanent magnet is expanded, the assembling device can be repeatedly used, and the assembling device is more environment-friendly.
2. The annular magnetic steel mounting groove and the top plate are arranged, so that the sector permanent magnets can be limited from moving axially along the magnetic steel mounting structure, the repulsive force between the sector permanent magnets is overcome, the assembly difficulty is reduced, the integrity of the annular permanent magnets is good after the assembly is finished, the annular permanent magnets can be used for being mounted and used in various environments, and the magnetizing difficulty is greatly reduced, particularly in the radial magnetizing direction, the 45-degree magnetizing direction and the like.
3. The assembling method of the annular permanent magnet is simple, high in assembling precision and capable of realizing repeated utilization of the assembling device.
4. The invention is not limited by the size of the annular permanent magnet, but only by the size of the fan-shaped permanent magnet, thereby greatly expanding the size range of the final annular permanent magnet, namely, the inner diameter, the outer diameter and the height of the annular permanent magnet can be made larger on the basis of the prior art.
Drawings
Fig. 1 is a front view of a single permanent magnet sector when radially magnetized.
Fig. 2 is a three-dimensional structure schematic diagram of a single fan-shaped permanent magnet when the magnet is radially magnetized.
Fig. 3 is a three-dimensional structure schematic diagram of an annular permanent magnet formed by assembling.
Fig. 4 is a top view of the assembled annular permanent magnet when radially magnetized.
Figure 5 is a front view of a single permanent sector magnet when axially charged.
Fig. 6 is a three-dimensional structure schematic diagram of a single fan-shaped permanent magnet when axially magnetized.
Fig. 7 is a front view of the assembled annular permanent magnet when axially magnetized.
Fig. 8 is a schematic three-dimensional structure diagram (hiding top plate cover plate) of the assembling device described in embodiment 1.
Fig. 9 is a schematic three-dimensional structure of the ceiling board cover described in embodiment 1.
Fig. 10 is a schematic three-dimensional structure diagram of the assembling device according to embodiment 2.
Icon: 0-sector permanent magnet, 1-top plate, 11-top plate magnetic steel groove, 12-top plate cover plate, 13-top plate glue coating groove, 2-support, 3-magnetic steel installation structure, 31-magnetic steel installation groove, 32-bottom plate, 33-inner wall, 34-outer wall, 35-floor groove, 36-inner side ring, 37-outer side ring, 4-rotation connecting piece, 5-connecting rod and 6-bolt.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
A plurality of parallel magnetized fan-shaped permanent magnets 0 are spliced into a magnetic ring by using bending instead of bending; if the magnetizing direction is axial, the magnetic field distribution is completely consistent with the direct magnetizing of the whole magnetic ring; if the magnetizing direction is radial or other directions (such as 45 degrees), the magnetic field distribution is very close to the direct magnetizing of the magnetic ring, and the use function of the magnetic ring is not influenced. The single sector and the assembled annular permanent magnet which is radially magnetized and axially magnetized are shown in figures 1-7.
All the assembling devices and the assembling method provided by the invention are suitable for the annular radial magnetized permanent magnet and the axial magnetized permanent magnet.
Example 1
As shown in fig. 8-9, an assembly device for ring-shaped permanent magnets comprises a top plate 1, a support 2 and a magnetic steel mounting structure 3. Support 2 is used for fixing whole frock on assembling the frame or assembling the platform, and roof 1 is used for retraining fan-shaped permanent magnet 0 and keeps away from the motion of support direction along the axis direction, and has fixed restraint with between the support 2. Roof 1 and the detachable fixed connection of support 2, in this embodiment, roof 1 is through a plurality of connecting rod 5 and support 2 fixed connection. Magnet steel mounting structure 3 rotates to be connected between roof 1, support 2, and magnet steel mounting structure 3 can rotate for support 2, and in this embodiment, magnet steel mounting structure 3 rotates with support 2 through rotating connecting piece 4 and is connected, and magnet steel mounting structure 3 can not take place the translation for support 2, can only rotate round support 2 axis.
The magnetic steel mounting structure 3 comprises a bottom plate 32, an inner wall 33 and an outer wall 34, the bottom plate 32, the inner wall 33 and the outer wall 34 jointly enclose an annular magnetic steel mounting groove 31, and the inner wall 33 and the outer wall 34 are respectively detachably and fixedly connected with the bottom plate 32. In this embodiment, the inner wall 33 is fixedly connected to the bottom plate 32 by a plurality of bolts 6, and the outer wall 34 is fixedly connected to the bottom plate 32 by a key slot.
Magnet steel mounting groove 31 is used for placing fan-shaped permanent magnet 0, and in this embodiment, roof 1 covers the top surface of magnet steel mounting groove 31, and the external diameter of roof 1 is greater than the external diameter of magnet steel mounting groove 31 promptly. Therefore, the top plate 1 and the magnetic steel mounting groove 31 jointly limit the axial movement of the fan-shaped permanent magnet 0 along the magnetic steel mounting structure 3, and the repulsive force between the fan-shaped permanent magnets 0 is overcome.
Preferably, a floor groove 35 is formed in the bottom plate 32, an inner ring 36 and an outer ring 37 are formed in the floor groove 35, the inner ring 36 is disposed in close contact with the outer edge of the inner wall 33, and the outer ring 37 is disposed in close contact with the inner edge of the outer wall 34. 2 axial motion of support can be kept away from along 3 axis of magnet steel mounting structure to floor groove 35, also can rotate around 3 axis of magnet steel mounting structure, and floor groove 35 is used for placing fan-shaped permanent magnet 0, inboard ring 36 and outside ring 37, ensures that fan-shaped permanent magnet 0, inboard ring 36 and outside ring 37 location are accurate.
In this embodiment, the central axes of the top plate 1, the support 2 and the magnetic steel mounting structure 3 are all on the same straight line, and the connecting rod 5 and the bolt 6 are circumferentially and uniformly distributed along the central axis of the support 2.
Example 2
An assembly method of a ring-shaped permanent magnet, which adopts the assembly device of the ring-shaped permanent magnet described in embodiment 1, includes the following steps:
the method comprises the following steps: fixing the support 2 on a workbench with a smooth surface, wherein the support is generally fixed by a detachable bolt;
step two: the rotary connecting piece 4, the inner wall 33, the bottom plate 32 and the outer wall 34 are sequentially arranged;
step three: a floor groove 35, an inner side ring 36 and an outer side ring 37 are sequentially arranged in a magnetic steel mounting groove 31 surrounded by a bottom plate 32, an inner wall 33 and an outer wall 34, and the magnetic steel mounting structure 3 is assembled;
step four: covering a top plate 1, and fixing the top plate 1 and a support 2 together through a connecting rod 5;
step five: 1 fan-shaped permanent magnet 0 is placed in the magnetic steel mounting groove 31 through the top plate magnetic steel groove 11;
step six: constraining the fan-shaped permanent magnet 0 to move horizontally upwards (away from the support) along the central axis direction by a hand or a pressure device, and rotating the magnetic steel mounting structure 3 to enable the fan-shaped permanent magnet 0 to move horizontally upwards (away from the support) along the central axis direction to be constrained by the top plate 1;
step seven: continuously placing the next 1 fan-shaped permanent magnet 0 into the magnetic steel mounting groove 31 through the top plate magnetic steel groove 11;
step eight: repeating the sixth step and the seventh step until the N/2 th fan-shaped permanent magnet 0 is placed, wherein N is the number of the fan-shaped permanent magnets 0 required by the annular permanent magnet formed by splicing;
step nine: a larger space is formed between every two adjacent fan-shaped permanent magnets 0 by a metal plate at a magnetic steel mounting groove 31 right below the top plate magnetic steel groove 11, so that the metal plate can accommodate 1 fan-shaped permanent magnet 0;
step ten: continuously placing the next 1 fan-shaped permanent magnet 0 into the magnetic steel mounting groove 31 through the top plate magnetic steel groove 11;
step eleven: constraining the fan-shaped permanent magnet 0 to move horizontally upwards (away from the support) along the central axis direction by a hand or a pressure device, and rotating the magnetic steel mounting structure 3 to enable the fan-shaped permanent magnet 0 to move horizontally upwards (away from the support) along the central axis direction to be constrained by the top plate 1;
step twelve: repeating the ninth step to the eleventh step until the N-1 th fan-shaped permanent magnet 0 is placed;
step thirteen: a large space is formed between every two adjacent fan-shaped permanent magnets 0 by a metal plate in the magnetic steel installation groove 31 right below the top plate magnetic steel groove 11, so that the magnetic steel installation groove can accommodate 1 fan-shaped permanent magnet 0 and rotate the space to the middle of the top plate magnetic steel groove 11;
fourteen steps: fixing the fan-shaped permanent magnet 0 and the bottom plate 32 together by using a clamping device at two ends of the top plate magnetic steel groove 11;
step fifteen: fixing the Nth fan-shaped permanent magnet 0 by using a restraint device, and placing the N-th fan-shaped permanent magnet into a top plate magnetic steel groove 11;
sixthly, the steps are as follows: restraining the fan-shaped permanent magnet 0 to move horizontally upwards (away from the support) along the central axis direction by using a hand or a pressure device, and removing the restraining device of the N fan-shaped permanent magnet;
seventeen steps: fixing the top plate cover plate 12 and the top plate 1 together through bolts to complete magnetic ring assembly;
eighteen steps: adhesive is smeared among the fan-shaped permanent magnets 0, between the fan-shaped permanent magnets 0 and the inner side ring 36 and between the fan-shaped permanent magnets 0 and the outer side ring 37 through the top plate glue coating groove 13, so that the fan-shaped permanent magnets 0 and the outer side ring 37 are completely adhered together;
if the bonding speed of the bonding agent is low, the whole tool and the magnetic ring are placed into an oven together after the bonding agent is coated, and heating is carried out so as to accelerate the solidification of the bonding agent;
nineteen steps: after the bonding is finished, the top plate 1 is removed;
twenty steps: a pushing device is used for pushing the annular permanent magnet consisting of the fan-shaped permanent magnet 0, the inner side ring 36, the outer side ring 37 and the adhesive out of the magnetic steel mounting groove 31 together with the floor groove 35; or the outer wall 34 and the bottom plate 32 can be gradually and sequentially removed, and then the annular permanent magnet is taken down;
twenty one: and after the assembly is finished, assembling the next magnetic ring, and entering the next cycle.
If only the inner ring 36 and the outer ring 37 are not enough to ensure the integrity of the annular permanent magnet, an annular metal sheet can be additionally arranged on the upper surface or the lower surface of the annular permanent magnet and bonded with the annular permanent magnet, or two sides of the annular metal sheet can be simultaneously additionally arranged;
if only one of the inner ring 36 and the outer ring 37 is considered to meet the requirements of the integrity and the use of the annular permanent magnet, only one inner ring 36 or one outer ring 37 can be arranged; if the integrity and use requirements can be met without the inner ring 36 and the outer ring 37, the inner ring 36 and the outer ring 37 may not be provided.
Example 3
As shown in fig. 10, an assembling device for a ring-shaped permanent magnet comprises a top plate 1, a support 2 and a magnetic steel mounting structure 3. Support 2 is used for fixing whole frock on assembling the frame or assembling the platform, and roof 1 is used for retraining fan-shaped permanent magnet 0 and keeps away from the motion of support direction along the axis direction, and has fixed restraint with between the support 2. The top plate 1 and the support 2 are detachably and fixedly connected. Magnet steel mounting structure 3 rotates to be connected between roof 1, support 2, and magnet steel mounting structure 3 can rotate for support 2, and in this embodiment, magnet steel mounting structure 3 rotates with support 2 through rotating connecting piece 4 (rotation axis) and is connected, and magnet steel mounting structure 3 can not take place the translation for support 2, can only rotate round support 2 axis.
The external diameter of roof 1 is less than the external diameter of magnet steel mounting groove 31, and the external diameter of roof 1 is greater than the internal diameter of magnet steel mounting groove 31, and roof magnetic steel groove 11 has been seted up to roof 1 to be provided with roof apron 12 that is used for covering roof magnetic steel groove 11, roof apron 12 and the detachable fixed connection of roof 1, for example bolted connection.
The magnetic steel mounting structure 3 includes a bottom plate 32, an inner wall 33 and an outer wall 34, the bottom plate 32, the inner wall 33 and the outer wall 34 jointly enclose an annular magnetic steel mounting groove 31, and the bottom plate 32, the inner wall 33 and the outer wall 34 are respectively detachably and fixedly connected with the bottom plate 32, for example, connected through a screw rod. The bottom plate 32 can also limit the fan-shaped permanent magnet 0, so that the fan-shaped permanent magnet 0 can only rotate around the central axis or move horizontally upwards (away from the support 2) along the direction of the central axis. The inner wall 33 and the outer wall 34 are used for determining the height, the inner diameter and the outer diameter of the magnetic ring.
Example 4
An assembly method of a ring-shaped permanent magnet, which adopts the assembly device of the ring-shaped permanent magnet described in embodiment 3, includes the following steps:
the method comprises the following steps: fixing the support 2 on a workbench with a smooth surface, wherein the support is generally fixed by a detachable bolt;
step two: the rotary connecting piece 4, the inner wall 33, the bottom plate 32 and the outer wall 34 are sequentially installed to complete the assembly of the magnetic steel installation structure 3;
step three: covering a top plate 1, and fixing the top plate 1 and a support 2 together through a screw;
step five: 1 fan-shaped permanent magnet 0 is placed in a magnetic steel mounting groove 31 surrounded by an inner wall 33, a bottom plate 32 and an outer wall 34 through a top plate magnetic steel groove 11;
step six: constraining the fan-shaped permanent magnet 0 to move horizontally upwards (away from the support) along the central axis direction by a hand or a pressure device, and rotating the magnetic steel mounting structure 3 to enable the fan-shaped permanent magnet 0 to move horizontally upwards (away from the support) along the central axis direction to be constrained by the top plate 1;
step seven: continuously placing the next 1 fan-shaped permanent magnet 0 into the magnetic steel mounting groove 31 through the top plate magnetic steel groove 11;
step eight: repeating the sixth step and the seventh step until the N/2 fan-shaped permanent magnets 0 are placed, wherein N is the number of the fan-shaped permanent magnets 0 required for forming the annular permanent magnet in an assembling mode;
step nine: a larger space is opened between the adjacent 2 fan-shaped permanent magnets 0 by a metal plate at the magnetic steel installation groove 31 right below the top plate magnetic steel groove 11, so that the metal plate can accommodate 1 fan-shaped permanent magnet 0;
step ten: continuously placing the next 1 fan-shaped permanent magnet 0 into the magnetic steel mounting groove 31 through the top plate magnetic steel groove 11;
step eleven: constraining the fan-shaped permanent magnet 0 to move horizontally upwards (away from the support) along the central axis direction by a hand or a pressure device, and rotating the magnetic steel mounting structure 3 to enable the fan-shaped permanent magnet 0 to move horizontally upwards (away from the support) along the central axis direction to be constrained by the top plate 1;
step twelve: repeating the ninth step to the eleventh step until the N-1 th fan-shaped permanent magnet 0 is placed;
step thirteen: a large space is opened between the adjacent 2 fan-shaped permanent magnets 0 by a metal plate at the magnetic steel installation groove 31 right below the top plate magnetic steel groove 11, so that the metal plate can accommodate 1 fan-shaped permanent magnet 0 and rotate the space to the middle of the top plate magnetic steel groove 11;
fourteen steps: fixing the fan-shaped permanent magnet 0 and the bottom plate 32 together by using a clamping device at two ends of the top plate magnetic steel groove 11;
step fifteen: fixing the Nth fan-shaped permanent magnet 0 by using a restraint device, and placing the N-th fan-shaped permanent magnet into a top plate magnetic steel groove 11;
sixthly, the steps are as follows: restraining the fan-shaped permanent magnet 0 to move horizontally upwards (away from the support) along the central axis direction by using a hand or a pressure device, and removing the restraining device of the N fan-shaped permanent magnet;
seventeen steps: the top plate cover plate 12 and the top plate 1 are fixed together through bolts to complete magnetic ring assembly;
eighteen, the steps are: coating an adhesive on the upper surface of the magnetic ring to completely adhere the fan-shaped permanent magnets 0 together;
if the bonding speed of the bonding agent is low, the whole tool and the magnetic ring are placed into an oven together after the bonding agent is coated, and heating is carried out so as to accelerate the solidification of the bonding agent;
nineteen steps: after the bonding is finished, the top plate 1 is removed;
twenty steps: pushing the annular permanent magnet consisting of the fan-shaped permanent magnet 0 and the binder out of the magnetic steel mounting groove 31 by using a pushing device; the outer wall 34 and the bottom plate 32 can also be gradually and sequentially detached, and then the annular permanent magnet is taken down;
twenty one: and after the assembly is finished, assembling the next magnetic ring, and entering the next cycle.
If the adhesive is not enough to ensure the integrity of the annular permanent magnet, an annular metal sheet can be additionally arranged on the upper surface or the lower surface of the annular permanent magnet and bonded with the annular permanent magnet, or two sides of the annular metal sheet can be simultaneously additionally arranged; or an inner ring and an outer ring are added on the inner side and/or the outer side of the annular permanent magnet (similar to the method of embodiment 1) so that the annular permanent magnet and the inner ring are bonded together.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The assembling device for the annular permanent magnets is characterized by comprising a top plate (1) and a support (2), wherein the top plate (1) is detachably and fixedly connected with the support (2), a magnetic steel mounting structure (3) is arranged between the top plate (1) and the support (2), the magnetic steel mounting structure (3) can rotate relative to the support (2), an annular magnetic steel mounting groove (31) is formed in the magnetic steel mounting structure (3), the magnetic steel mounting groove (31) is used for placing the sector permanent magnets (0), the top plate (1) and the magnetic steel mounting groove (31) jointly limit the sector permanent magnets (0) to axially move along the magnetic steel mounting structure (3), a top plate magnetic steel groove (11) is formed in the top plate (1), the top plate magnetic steel groove (11) is used for placing the sector permanent magnets (0), and the top plate magnetic steel groove (11) is detachably and fixedly connected with a cover plate (12), and the top plate cover plate (12) is used for limiting the fan-shaped permanent magnet (0) to axially move along the magnetic steel mounting structure (3).
2. Assembly device of annular permanent magnets according to claim 1, characterized in that said magnetic steel mounting structure (3) is rotatably connected to said top plate (1) or said support (2) by means of a rotating connection (4).
3. The assembling device of the annular permanent magnet according to claim 1, wherein the magnetic steel mounting structure (3) comprises a bottom plate (32), an inner wall (33) and an outer wall (34), the bottom plate (32), the inner wall (33) and the outer wall (34) jointly enclose the magnetic steel mounting groove (31), and the inner wall (33) and the outer wall (34) are respectively detachably and fixedly connected with the bottom plate (32).
4. The assembly device of annular permanent magnets according to claim 3, wherein the bottom plate (32) is provided with a floor groove (35), the floor groove (35) is provided with an inner side ring (36) and/or an outer side ring (37), the inner side ring (36) is tightly attached to the outer edge of the inner wall (33), and the outer side ring (37) is tightly attached to the inner edge of the outer wall (34).
5. The assembling device for the annular permanent magnets according to any one of claims 1 to 4, wherein the outer diameter of the top plate (1) is larger than the outer diameter of the magnetic steel mounting groove (31), a plurality of top plate glue coating grooves (13) are formed in the top plate (1), the top plate glue coating grooves (13) are communicated with the magnetic steel mounting groove (31), the top plate magnetic steel groove (11) is a fan-shaped groove, the outer diameter of the top plate magnetic steel groove (11) is larger than the outer diameter of the magnetic steel mounting groove (31), and the inner diameter of the top plate magnetic steel groove (11) is smaller than the inner diameter of the magnetic steel mounting groove (31).
6. The assembling device for the annular permanent magnets according to any one of claims 1 to 4, wherein the outer diameter of the top plate (1) is smaller than the outer diameter of the magnetic steel mounting groove (31), the outer diameter of the top plate (1) is larger than the inner diameter of the magnetic steel mounting groove (31), the top plate magnetic steel groove (11) is a fan-shaped groove, the outer diameter of the top plate magnetic steel groove (11) is larger than the inner diameter of the magnetic steel mounting groove (31), and the inner diameter of the top plate magnetic steel groove (11) is smaller than the inner diameter of the magnetic steel mounting groove (31).
7. A method for assembling an annular permanent magnet, which is characterized in that the assembling device of the annular permanent magnet according to any one of claims 1 to 6 is adopted, and comprises the following steps:
the method comprises the following steps: fixing the support (2), and mounting the magnetic steel mounting structure (3) on the support (2) so that the magnetic steel mounting structure (3) can rotate relative to the support (2);
step two: the top plate (1) is fixedly connected above the support (2);
step three: 1 fan-shaped permanent magnet (0) is placed in the magnetic steel mounting groove (31) through the top plate magnetic steel groove (11);
step four: the magnetic steel mounting structure (3) is rotated, so that the top plate (1) restrains the placed fan-shaped permanent magnet (0) to axially move along the magnetic steel mounting structure (3);
step five: continuously putting the rest fan-shaped permanent magnets (0) through the top plate magnetic steel groove (11), and repeating the step four once when putting one fan-shaped permanent magnet (0);
step six: after the last sector permanent magnet (0) is placed in the top plate, a top plate cover plate (12) is fixedly connected above the top plate magnetic steel groove (11);
step seven: and gluing and bonding the fan-shaped permanent magnet (0).
8. The assembling method of the annular permanent magnet according to claim 7, wherein the magnetic steel mounting structure (3) comprises a bottom plate (32), an inner wall (33) and an outer wall (34), the bottom plate (32), the inner wall (33) and the outer wall (34) jointly enclose the magnetic steel mounting groove (31), and the inner wall (33) and the outer wall (34) are respectively and fixedly connected with the bottom plate (32) in a detachable manner;
a floor groove (35) is arranged on the bottom plate (32), an inner side ring (36) and/or an outer side ring (37) are arranged on the floor groove (35), the inner side ring (36) is tightly attached to the outer edge of the inner wall (33), and the outer side ring (37) is tightly attached to the inner edge of the outer wall (34);
in the step one, firstly, the magnetic steel mounting structure (3) is assembled, and then the magnetic steel mounting structure (3) is mounted on the support (2), and the method specifically comprises the following steps: assembling the bottom plate (32), the inner wall (33) and the outer wall (34) to form the magnetic steel mounting groove (31), then placing the floor groove (35), the inner side ring (36) and the outer side ring (37) into the magnetic steel mounting groove (31), and finally rotatably connecting the magnetic steel mounting structure (3) with the support (2) through a rotary connecting piece (4);
and seventhly, coating adhesives among the fan-shaped permanent magnets (0), between the fan-shaped permanent magnets (0) and the inner side ring (36), and between the fan-shaped permanent magnets (0) and the outer side ring (37) through the top plate glue coating groove (13) so as to bond the fan-shaped permanent magnets together.
9. The assembly method of the ring-shaped permanent magnet according to claim 7, wherein in the fifth step, when the number of the inserted fan-shaped permanent magnets (0) is more than half, the gap between 2 adjacent fan-shaped permanent magnets (0) right below the top plate magnetic steel slot (11) is expanded by an expanding device, and 1 fan-shaped permanent magnet (0) is continuously inserted through the gap.
10. The assembly method of the annular permanent magnet according to any one of claims 7 to 9, further comprising the step eight: after the fan-shaped permanent magnets (0) are bonded, the top plate (1) is detached, and the annular permanent magnets formed by the fan-shaped permanent magnets (0) are pushed out of the magnetic steel mounting groove (31) by a pushing device; or the components of the magnetic steel mounting structure (3) are removed, and then the annular permanent magnet consisting of the fan-shaped permanent magnets (0) is taken out.
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| EP3125257B1 (en) * | 2015-07-31 | 2018-01-03 | Shin-Etsu Chemical Co., Ltd. | Dipole ring magnetic field generator |
| CN105575584B (en) * | 2016-02-16 | 2017-08-29 | 兰州空间技术物理研究所 | A kind of erecting device of toroidal magnet |
| FR3064423B1 (en) * | 2017-03-22 | 2019-11-15 | Whylot Sas | ROTOR FOR MOTOR OR ELECTROMAGNETIC GENERATOR WITH ALVEOLAR STRUCTURE COMPRISING ALVEOLES FOR THE HOUSING OF RESPECTIVE MAGNETS |
| CN109686529A (en) * | 2018-12-10 | 2019-04-26 | 兰州空间技术物理研究所 | A kind of ion thruster fan-shaped magnet mounting device and installation method |
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