CN215680292U - Radial multistage magnetizing device for annular magnet - Google Patents
Radial multistage magnetizing device for annular magnet Download PDFInfo
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- CN215680292U CN215680292U CN202121760503.0U CN202121760503U CN215680292U CN 215680292 U CN215680292 U CN 215680292U CN 202121760503 U CN202121760503 U CN 202121760503U CN 215680292 U CN215680292 U CN 215680292U
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Abstract
The utility model relates to a radial multistage magnetizing device for an annular magnet, which belongs to the technical field of magnetizing and comprises a magnetizing coil assembly with a multistage coil inside, wherein a magnetizing hole penetrating up and down is formed in the magnetizing coil assembly, a non-metal rod is sleeved in the magnetizing hole, a metal sleeve is sleeved outside the non-metal rod and made of a magnetic conductive material or a diamagnetic material, an accommodating groove for placing the annular magnet is formed between the outer wall of the metal sleeve and the wall of the magnetizing hole, and the annular magnet is sleeved outside the metal sleeve. The utility model utilizes the principle of magnetic circuit conduction, changes the magnetic circuit through the metal sleeve so as to change the distribution of the intensity of the magnetizing magnetic field, realizes the waveform adjustment, further can obviously improve the magnetizing effect, and has simple structure.
Description
Technical Field
The utility model relates to a radial multistage magnetizing device for an annular magnet, and belongs to the technical field of magnetization.
Background
The multi-pole magnet needs to adopt a multi-pole magnetizing technology in the magnetizing process, and high current is utilized to carry out instantaneous discharge so as to generate a pulse strong magnetic field, thereby achieving the aim of magnetizing the permanent magnet. The existing magnetizing device used in multi-pole magnetizing has complex structure, slow magnetizing efficiency and poor effect. Current chinese patent No. 202011032182.2, the patent name is a neodymium iron boron magnetism body production is with magnetization device and implementation method's patent, discloses a neodymium iron boron magnetism body production is with magnetization device and implementation method, including the magnetization box, the magnetization box includes interior bushing plate, shell body, hollow layer, circular telegram coil and shielding layer, is provided with the hollow layer between the gap of interior bushing plate and shell body, and the inner chamber of hollow layer is provided with circular telegram coil, and its beneficial effect utilizes the circular telegram coil circular telegram of cup jointing on the interior bushing plate outer wall of metal component to produce the magnetic field and magnetize, and metal component interior bushing plate edge keeps apart the protection to circular telegram coil, and the limit is served as the metal inner core of circular telegram coil, has strengthened the magnetic field intensity of circular telegram coil and with the effect of magnetizing of improve equipment. It also has the following disadvantages: the metal inner core which adopts the metal component as the electrified coil only simply increases the magnetic field, the magnetizing effect cannot be obviously improved, and the structure is complex.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a radial multistage magnetizing device for an annular magnet, which solves the problems that in the prior art, a metal inner core adopting a metal component as an electrified coil only simply increases a magnetic field, the magnetizing effect cannot be obviously improved, the structure is complex and the like.
The technical purpose of the utility model is mainly solved by the following technical scheme: the utility model provides a radial multistage magnetization device of annular magnet, has the coil assembly that magnetizes of multistage coil including inside, it magnetizes the hole to be formed with the hole of magnetizing that runs through from top to bottom to magnetize in the coil assembly, it is equipped with non-metallic rod to magnetize downthehole cover, non-metallic rod outside cover is equipped with the metal covering, the metal covering is made by magnetic material or diamagnetic material, the metal covering outer wall with it supplies the holding tank that the annular magnet work piece was placed to magnetize to be formed with between the hole pore wall.
When the device is used, the multistage coil in the magnetizing coil assembly is electrified to generate a magnetic field which radially penetrates through the annular magnet workpiece to magnetize the annular magnet workpiece, and in the magnetizing process, the metal sleeve made of the magnetic conductive material can enable more magnetic lines of force to pass through the metal sleeve, so that the perpendicularity between the surface magnetism and the outer surface of the annular magnet workpiece can be improved, the magnetic flux value is improved, and the magnetizing effect is improved; the metal sleeve made of the diamagnetic material can enable more magnetic lines to enter the annular magnet workpiece from the inside of the annular magnet workpiece, prevents the magnetic lines from diverging in the inner ring, and can improve the magnetic flux density in the middle of the magnetic pole, so that the maximum surface magnetic value is improved, and further the magnetizing effect is improved.
Preferably, a large diameter portion for supporting the annular magnet workpiece and the metal sleeve is formed at a bottom end of the non-metal rod, and the diameter of the large diameter portion is larger than the inner diameter of the annular magnet workpiece; the large-diameter part used for bearing the annular magnet workpiece and the metal sleeve is formed at the bottom end of the non-metal rod, and the diameter of the large-diameter part is larger than the inner diameter of the annular magnet workpiece, so that the annular magnet workpiece and the metal sleeve can be respectively abutted against the end face of the large-diameter part, the annular magnet workpiece and the metal sleeve are supported in the magnetizing hole, and the annular magnet workpiece and the metal sleeve are relatively fixed.
Preferably, the diameter of the large diameter portion is larger than the diameter of the magnetizing hole; the diameter through with major diameter portion sets up to be greater than the diameter of magnetizing the hole for the major diameter portion can't get into from the bottom opening of magnetizing the hole, can realize spacing the axial of non-metallic rod, the installation of being convenient for.
Preferably, the diameter of the magnetizing hole is larger than the outer diameter of the annular magnet workpiece; the diameter of the magnetizing hole is set to be larger than the outer diameter of the annular magnet workpiece, so that the annular magnet workpiece is conveniently sleeved outside the metal sleeve, and the annular magnet workpiece is movably mounted.
Preferably, the upper surface of the non-metal rod and the upper surface of the metal sleeve are on the same horizontal plane and higher than the upper surface of the magnetizing coil assembly; the upper surface of the non-metal rod and the upper surface of the metal sleeve are arranged to be on the same horizontal plane and higher than the upper surface of the magnetizing coil assembly, so that an operator can conveniently sleeve the annular magnet workpiece on the outer side of the metal sleeve from the top.
Preferably, the non-metal rod is made of a nylon material; the nonmetal rods are made of nylon materials, so that the nonmetal rods are light in weight, convenient to operate and low in cost.
Preferably, a plurality of the ring-shaped magnet workpieces are stacked in the axial direction of the magnetizing hole; a plurality of annular magnet workpieces are stacked along the axial direction of the magnetizing hole, so that the annular magnet workpieces can be magnetized simultaneously, and the magnetizing efficiency is improved.
Therefore, the utility model utilizes the principle of magnetic circuit conduction, changes the magnetic circuit through the metal sleeve, thereby changing the distribution of the magnetizing magnetic field intensity, realizing the waveform adjustment, further obviously improving the magnetizing effect and having simple structure.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
fig. 2 is a schematic cross-sectional structure of the present invention.
The scores in the figures are as follows: 1. a magnetizing coil assembly; 2. a magnetizing hole; 3. a non-metallic rod; 4. accommodating grooves; 5. a ring magnet workpiece; 6. a metal sheath; 7. a large diameter portion.
Detailed Description
The technical scheme of the utility model is further specifically described by the following embodiments and the accompanying drawings.
Example 1
As shown in fig. 1 and 2, the radial multistage magnetizing device for the annular magnet comprises a magnetizing coil assembly 1 with multistage coils inside, a magnetizing hole 2 penetrating up and down is formed in the magnetizing coil assembly 1, the diameter of the magnetizing hole 2 is larger than the outer diameter of an annular magnet workpiece 5, a metal sleeve 6 is slidably sleeved outside a non-metal rod 3, the upper surface of the non-metal rod 3 and the upper surface of the metal sleeve 6 are located on the same horizontal plane and higher than the upper surface of the magnetizing coil assembly 1, the metal sleeve 6 is made of a magnetic conductive material, the magnetic conductive material can be iron, an accommodating groove 4 for placing the annular magnet workpiece 5 is formed between the outer wall of the metal sleeve 6 and the hole wall of the magnetizing hole 2, the accommodating groove 4 is annular, a plurality of annular magnet workpieces 5 are stacked in the axial direction of the magnetizing hole 2, and the uppermost annular magnet workpiece 5 is located in the magnetizing hole 2.
As shown in fig. 2, the non-metal rod 3 is sleeved in the magnetizing hole 2, the non-metal rod 3 is made of nylon material, a large-diameter portion 7 used for supporting the annular magnet workpiece 5 and the metal sleeve 6 is formed at the bottom end of the non-metal rod 3, a protrusion extending outwards in the radial direction of the non-metal rod 3 can be formed, the diameter of the large-diameter portion 7 is larger than the inner diameter of the annular magnet workpiece 5, and the diameter of the large-diameter portion 7 is larger than the diameter of the magnetizing hole 2.
In the specific implementation of the embodiment, the plurality of annular magnet workpieces 5 are sequentially sleeved outside the metal sleeve 6 from the top, the plurality of annular magnet workpieces 5 are stacked and the uppermost annular magnet workpiece 5 is positioned in the magnetizing hole 2, a magnetic field passing through the annular magnet workpiece 5 along the radial direction is generated by electrifying the multi-stage coils in the magnetizing coil assembly 1 to magnetize the annular magnet workpieces 5, in the magnetizing process, the metal sleeve 6 made of the magnetic conductive material can enable more magnetic lines of force to pass through the metal sleeve 6, the verticality between the surface magnetism and the outer surface of the annular magnet workpiece 5 can be improved, the magnetic flux value is improved, the magnetizing effect is improved, after the magnetizing is finished, an operator holds the large-diameter part 7 to draw the support rod 3 out of the magnetizing hole 2, and can drive the metal sleeve 6 and the annular magnet workpiece 5 to move together, so that the annular magnet workpieces 5 can be taken out, and then the ring-shaped magnet workpiece 5 is detached from the metal sleeve 6.
Example 2
As shown in fig. 1 and 2, the radial multistage magnetizing device for the annular magnet comprises a magnetizing coil assembly 1 with multistage coils inside, a magnetizing hole 2 penetrating through the magnetizing coil assembly 1 up and down is formed in the magnetizing coil assembly 1, the diameter of the magnetizing hole 2 is larger than the outer diameter of an annular magnet workpiece 5, a metal sleeve 6 is slidably sleeved outside a non-metal rod 3, the upper surface of the non-metal rod 3 and the upper surface of the metal sleeve 6 are located on the same horizontal plane and are higher than the upper surface of the magnetizing coil assembly 1, the metal sleeve 6 is made of a diamagnetic material, the diamagnetic material can be copper, an accommodating groove 4 for placing the annular magnet workpiece 5 is formed between the outer wall of the metal sleeve 6 and the hole wall of the magnetizing hole 2, the accommodating groove 4 is annular, a plurality of annular magnet workpieces 5 are stacked in the axial direction of the magnetizing hole 2, and the uppermost annular magnet workpiece 5 is located in the magnetizing hole 2.
As shown in fig. 2, the non-metal rod 3 is sleeved in the magnetizing hole 2, the non-metal rod 3 is made of nylon material, a large-diameter portion 7 used for supporting the annular magnet workpiece 5 and the metal sleeve 6 is formed at the bottom end of the non-metal rod 3, a protrusion extending outwards in the radial direction of the non-metal rod 3 can be formed, the diameter of the large-diameter portion 7 is larger than the inner diameter of the annular magnet workpiece 5, and the diameter of the large-diameter portion 7 is larger than the diameter of the magnetizing hole 2.
In the specific implementation of the embodiment, the plurality of annular magnet workpieces 5 are sequentially sleeved outside the metal sleeve 6 from the top, the plurality of annular magnet workpieces 5 are stacked and the uppermost annular magnet workpiece 5 is positioned in the magnetizing hole 2, a magnetic field passing through the annular magnet workpiece 5 along the radial direction is generated by electrifying the multi-stage coils in the magnetizing coil assembly 1 to realize the magnetizing of the annular magnet workpieces 5, in the magnetizing process, the metal sleeve 6 made of the diamagnetic material can enable more magnetic lines of force to enter the annular magnet workpieces 5 from the inside of the annular magnet workpieces 5, prevent the magnetic lines of force from diffusing in an inner ring, improve the magnetic flux density in the middle of a magnetic pole, improve the maximum value of surface magnetism, further improve the magnetizing effect, after the magnetizing is finished, an operator holds the large-diameter part 7 to draw the support rod 3 out of the magnetizing hole 2, and simultaneously drive the metal sleeve 6 and the annular magnet workpieces 5 to move together, so that the ring-shaped magnet workpiece 5 can be taken out and then the ring-shaped magnet workpiece 5 can be detached from the metal shell 6.
The utility model utilizes the principle of magnetic circuit conduction, changes the magnetic circuit through the metal sleeve so as to change the distribution of the intensity of the magnetizing magnetic field, realizes the waveform adjustment, further can obviously improve the magnetizing effect, and has simple structure.
Claims (7)
1. The utility model provides a radial multistage magnetization device of ring magnet which characterized in that: including inside magnetizing coil assembly (1) that has multistage coil, be formed with in magnetizing coil assembly (1) and magnetize hole (2) that run through from top to bottom, it is equipped with non-metallic pole (3) to magnetize hole (2) endotheca, non-metallic pole (3) outside cover is equipped with metal covering (6), metal covering (6) are made by magnetic material or diamagnetic material, metal covering (6) outer wall with it supplies holding tank (4) that annular magnet work piece (5) placed to magnetize between hole (2) pore wall to be formed with.
2. The radial multistage magnetizing device for the ring magnet according to claim 1, wherein: the bottom end of the nonmetal rod (3) is provided with a large-diameter part (7) used for supporting the annular magnet workpiece (5) and the metal sleeve (6), and the diameter of the large-diameter part (7) is larger than the inner diameter of the annular magnet workpiece (5).
3. The radial multistage magnetizing device for the ring magnet according to claim 2, wherein: the diameter of the large-diameter part (7) is larger than that of the magnetizing hole (2).
4. The radial multistage magnetizing device for the ring magnet according to claim 1, 2 or 3, wherein: the diameter of the magnetizing hole (2) is larger than the outer diameter of the annular magnet workpiece (5).
5. The radial multistage magnetizing device for the ring magnet according to claim 1, 2 or 3, wherein: the upper surface of the non-metal rod (3) and the upper surface of the metal sleeve (6) are positioned on the same horizontal plane and are higher than the upper surface of the magnetizing coil assembly (1).
6. The radial multistage magnetizing device for the ring magnet according to claim 1, 2 or 3, wherein: the non-metal rod (3) is made of nylon material.
7. The radial multistage magnetizing device for the ring magnet according to claim 1, 2 or 3, wherein: the annular magnet workpieces (5) are stacked in the axial direction of the magnetizing hole (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121760503.0U CN215680292U (en) | 2021-07-30 | 2021-07-30 | Radial multistage magnetizing device for annular magnet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121760503.0U CN215680292U (en) | 2021-07-30 | 2021-07-30 | Radial multistage magnetizing device for annular magnet |
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| Publication Number | Publication Date |
|---|---|
| CN215680292U true CN215680292U (en) | 2022-01-28 |
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| CN202121760503.0U Active CN215680292U (en) | 2021-07-30 | 2021-07-30 | Radial multistage magnetizing device for annular magnet |
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| CN (1) | CN215680292U (en) |
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2021
- 2021-07-30 CN CN202121760503.0U patent/CN215680292U/en active Active
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