Injection molding neodymium iron boron magnet ring

Abstract

The utility model discloses an injection molding neodymium iron boron magnet ring, which comprises an outer magnet ring, a second magnet ring, a third magnet ring and a fourth magnet ring, the inner side of the outer magnet ring is provided with the second magnet ring, the inner side of the second magnet ring is provided with the third magnet ring, and the inner side of the third magnet ring is provided with the fourth magnet ring. The inner sides of the outer magnetic ring, the second magnetic ring, the third magnetic ring and the fourth magnetic ring are each provided with a plurality of connecting rods, an operator can take out the connecting rods from any magnetic ring according to actual requirements, and therefore the thickness of the total magnetic ring is reduced. Therefore, the magnetic ring can adapt to different space limitations and installation requirements, the applicability of the magnetic ring in various application scenes is improved, the outer magnetic ring, the second magnetic ring, the third magnetic ring and the fourth magnetic ring are installed or detached in a nested mode, total magnetic rings of different thicknesses can be obtained, and then the magnetic field intensity is adjusted. Convenience is provided for different application requirements, the whole magnetic ring device does not need to be replaced, and cost and time are saved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the related technical field of neodymium iron boron magnetic ring, and specifically relates to an injection molding neodymium iron boron magnetic ring. BACKGROUND

[0002] Neodymium iron boron is a kind of high-performance permanent magnet material. It is mainly composed of neodymium (Nd), iron (Fe) and boron (B) elements. Neodymium iron boron magnet has very high magnetic performance, and its maximum magnetic energy product (BH) max can reach a very high value, which makes it can produce stronger magnetic field than other permanent magnet materials under the same volume. For example, compared with traditional ferrite permanent magnet material, the magnetic energy product of neodymium iron boron magnet can be several to dozens of times of that of ferrite.

[0003] Its discovery is a major breakthrough in the field of permanent magnet materials. In the 1980s, with the development of material technology, neodymium iron boron permanent magnet material was developed, and due to its excellent magnetic performance, it was soon applied in many fields, such as electronics, motors, medical devices, etc.

[0004] At present, as for the existing neodymium iron boron magnetic ring, in the actual use process, it generally presents the characteristic of single structure magnetic ring. This single structure magnetic ring has certain limitations in magnetic field characteristics, and its magnetic field strength is relatively limited. Specifically, the range of magnetic field strength it can produce is relatively fixed, and it cannot be flexibly adjusted and changed according to different use requirements.

[0005] And in some specific application scenarios in real life, magnetic rings with different magnetic field strengths are often combined for use to meet the complex and variable work requirements. For example, in the manufacturing process of some precision instruments, the magnetic field strength needs to be accurately controlled to ensure the precision and stability of the instruments; for example, in some special scientific experiments, different experimental steps may have completely different requirements for the magnetic field strength. However, due to the singleness and fixity of the existing magnetic ring structure, it is difficult to meet such diversified needs. This structural limitation makes the user often face many inconveniences in actual application, and cannot efficiently complete the related work tasks, which also limits the technical development and application expansion in related fields to some extent. UTILITY MODEL CONTENT

[0006] The utility model aims at providing an injection molding neodymium iron boron magnetic ring to solve the problem that the existing neodymium iron boron magnetic ring generally presents the characteristic of single structure magnetic ring in the above background technology. This single structure magnetic ring has certain limitations in magnetic field characteristics, and its magnetic field strength is relatively limited.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an injection molding neodymium iron boron magnetic ring, comprising an outer magnetic ring, a second magnetic ring, a third magnetic ring and a fourth magnetic ring;

[0008] The inner side of the outer magnetic ring is provided with a second magnetic ring, the inner side of the second magnetic ring is provided with a third magnetic ring, and the inner side of the third magnetic ring is provided with a fourth magnetic ring;

[0009] The inner sides of the outer magnetic ring, the second magnetic ring, the third magnetic ring and the fourth magnetic ring are respectively provided with a plurality of connecting rods, and the connecting rods and the inner sides of the outer magnetic ring, the second magnetic ring, the third magnetic ring and the fourth magnetic ring are provided with connecting cavities.

[0010] Preferably, the connecting rods are connected through plug-in connection and the connecting cavities, and the upper left side of the connecting cavities is provided with a connecting hole.

[0011] Preferably, the connecting rods and the connecting holes are provided with fixing bolts at the connecting positions, and the fixing bolts are connected with the connecting rods and the connecting holes through threaded connection.

[0012] Preferably, the plurality of connecting rods are respectively L-shaped structures and are mutually embedded with the connecting cavities.

[0013] Preferably, the middle inner sides of the outer magnetic ring, the second magnetic ring, the third magnetic ring and the fourth magnetic ring are respectively provided with inner holes, and the outer diameter of the second magnetic ring and the inner hole diameter of the outer magnetic ring are matched.

[0014] Preferably, the outer diameter of the third magnetic ring and the inner hole diameter of the second magnetic ring are matched, and the outer diameter of the fourth magnetic ring and the inner hole diameter of the third magnetic ring are matched.

[0015] Compared with the prior art, the present application provides an injection molded Nd-Fe-B magnetic ring, which has the following advantages:

[0016] In the injection molded Nd-Fe-B magnetic ring, the following advantages can be achieved through the arrangement of the outer magnetic ring, the second magnetic ring, the third magnetic ring, the fourth magnetic ring, the inner hole, the connecting rod, the fixing bolt, the connecting cavity and the connecting hole.

[0017] High flexibility

[0018] Thickness adjustable: The connecting rod can be removed from any magnetic ring according to actual needs, thereby reducing the thickness of the total magnetic ring. This makes the magnetic ring adapt to different space limitations and installation requirements, improving its applicability in various application scenarios.

[0019] Magnetic field strength adjustable: By nesting and installing or disassembling the outer magnetic ring, the second magnetic ring, the third magnetic ring and the fourth magnetic ring, a total magnetic ring with different thicknesses can be obtained, thereby adjusting the magnetic field strength. This provides convenience for different application requirements without the need to replace the entire magnetic ring device, saving cost and time.

[0020] II. Reduce cost

[0021] Broken can be replaced individually: when the magnetic ring is broken, the whole magnetic ring assembly does not need to be replaced, only the broken magnetic ring needs to be replaced. This greatly reduces the replacement cost and improves the resource utilization.

[0022] Reduce waste: because the combination of magnetic rings can be flexibly adjusted according to demand, the overall replacement caused by inappropriate magnetic field strength or space limitation is avoided, and unnecessary waste is reduced.

[0023] Three, stable and reliable connection

[0024] Connecting rod and connecting cavity design: the connecting rod is connected with the connecting cavity through the plug-in connection mode, the L-shaped connecting rod and the connecting cavity are tightly embedded with each other, and the threaded connection of the fixing bolt makes the connection between the magnetic rings more stable and reliable, and it is not easy to loosen and separate.

[0025] Improve safety: stable connection can ensure that the magnetic ring will not produce safety hazards due to looseness during use, improve the safety and reliability of the equipment.

[0026] Four, easy to operate and maintain

[0027] Easy to assemble: the assembly process of the magnetic ring is clear and easy to understand, and the assembly can be completed through the steps of preliminary nesting, connection and fixation, which is simple and convenient to operate, and reduces the installation difficulty and error rate.

[0028] Convenient maintenance and replacement: when the magnetic ring is broken, the replacement operation can be quickly completed by unscrewing the fixing bolt, removing the connecting rod and the broken magnetic ring, and installing a new magnetic ring, without the need for professional skills and complex tools, improving the maintenance efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 The structure diagram in the utility model.

[0030] Figure 2 The structure diagram when the connecting rod is taken out of the connecting cavity in the utility model.

[0031] Figure 3 The schematic diagram after the connecting rod is taken out in the utility model;

[0032] Figure 4 The structure diagram of the inner circular area in the utility model. Figure 2

[0033] Figure 5 The schematic diagram of the plurality of magnetic rings being pushed out in the utility model.

[0034] ​In the figure: 1, outer magnetic ring; 2, second magnetic ring; 3, third magnetic ring; 4, fourth magnetic ring; 5, inner hole; 6, connecting rod; 7, fixing bolt; 8, connecting cavity; 9, connecting hole. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0036] The utility model provides a kind of injection molding Nd-Fe-B magnetic ring as Figures 1-5 As shown in a kind of injection molding Nd-Fe-B magnetic ring, including outer magnetic ring 1, second magnetic ring 2, third magnetic ring 3 and fourth magnetic ring 4;

[0037] The inner side position of outer magnetic ring 1 is provided with second magnetic ring 2, the inner side position of second magnetic ring 2 is provided with third magnetic ring 3, and the inner side position of third magnetic ring 3 is provided with fourth magnetic ring 4;

[0038] The inner side of outer magnetic ring 1, second magnetic ring 2, third magnetic ring 3 and fourth magnetic ring 4 is respectively provided with a plurality of connecting rods 6, and the inner side connecting portion of connecting rod 6 and outer magnetic ring 1, second magnetic ring 2, third magnetic ring 3 and fourth magnetic ring 4 is provided with connecting cavity 8.

[0039] In the embodiment, the specific operation steps are as follows: first, outer magnetic ring 1, second magnetic ring 2, third magnetic ring 3 and fourth magnetic ring 4 are carefully made respectively. When making each magnetic ring, connecting cavity 8 and connecting hole 9 are carefully processed on the inner side thereof using professional processing technology. The size and shape of connecting cavity 8 need to be strictly in accordance with the design requirements, so as to ensure that the subsequent connecting rod 6 can be smoothly inserted and achieve good connection effect. The position and aperture of connecting hole 9 also need to be accurately controlled to provide accurate butt joint point for fixed connection with connecting rod 6.

[0040] Then, a plurality of connecting rods 6 in L-shaped structure are made. The material of these connecting rods 6 should have sufficient strength and wear resistance to ensure that the magnetic rings can be stably connected during long-term use. When connecting the connecting rod 6 with the magnetic ring, the connecting rod 6 is accurately inserted into the connecting cavity 8, and then the connecting rod 6 is tightly connected with the connecting hole 9 through the fixing bolt 7. During the process of tightening the fixing bolt 7, appropriate torque should be applied to ensure the stability of the connection, and to prevent the magnetic ring or connecting rod 6 from being damaged due to excessive force. In this way, the reliable fixation between the magnetic rings is realized, laying a foundation for the stability of the entire device.

[0041] As for the method of use, different numbers of magnetic rings can be flexibly selected and combined according to actual specific needs. During installation, the outer magnetic ring 1, the second magnetic ring 2, the third magnetic ring 3, and the fourth magnetic ring 4 are installed in a certain order. By skillfully adjusting the number and combination of magnetic rings, the magnetic field strength can be effectively adjusted to meet the diversified requirements of the magnetic field in different scenarios. For example, in some cases where the magnetic field strength requirement is low, the number of magnetic rings can be appropriately reduced; while in environments requiring a strong magnetic field, the number of magnetic rings can be increased or the combination mode can be changed.

[0042] When it is necessary to reduce the total magnetic ring thickness, the connecting rod 6 can be removed from the corresponding magnetic ring according to the correct operation process. This process requires careful operation to avoid unnecessary damage to the magnetic ring or other components. In addition, when the magnetic ring is damaged during use, the fixing bolt 7 can be unscrewed first, then the damaged magnetic ring can be carefully removed, and a complete magnetic ring can be replaced in time. After replacing the magnetic ring, the stability of the connecting part needs to be checked again to ensure that the entire device can operate normally and continue to play its due role.

[0043] As shown in Figures 1-5 , the connecting rod 6 is connected to the connecting cavity 8 by insertion and embedding connection. The connecting cavity 8 has a connecting hole 9 at the upper left side position. The connecting rod 6 and the connecting hole 9 are connected by a fixing bolt 7. The fixing bolt 7 is connected to the connecting rod 6 and the connecting hole 9 by threaded connection. The plurality of connecting rods 6 are L-shaped structures and are embedded with the connecting cavity 8. The outer magnetic ring 1, the second magnetic ring 2, the third magnetic ring 3, and the fourth magnetic ring 4 have inner holes 5 at the middle inner side positions. The outer diameter of the second magnetic ring 2 matches the diameter of the inner hole 5 of the outer magnetic ring 1. The outer diameter of the third magnetic ring 3 matches the diameter of the inner hole 5 of the second magnetic ring 2. The outer diameter of the fourth magnetic ring 4 matches the diameter of the inner hole 5 of the third magnetic ring 3.

[0044] Preferably, the magnetic ring assembly stage

[0045] Preparation

[0046] Check whether the components such as the outer magnetic ring 1, the second magnetic ring 2, the third magnetic ring 3, the fourth magnetic ring 4, the connecting rod 6, and the fixing bolt 7 are intact. Ensure that the inner hole 5 and the outer diameter of each magnetic ring meet the design requirements, and the connecting rod 6 is not bent or deformed.

[0047] Initial nesting

[0048] The fourth magnetic ring 4 is placed on the operating table, and then the third magnetic ring 3 is carefully nested outside the fourth magnetic ring 4, ensuring that the inner hole 5 of the third magnetic ring 3 closely matches the outer diameter of the fourth magnetic ring 4. Then, the second magnetic ring 2 is nested outside the third magnetic ring 3, also ensuring a close fit between the two. Finally, the outer magnetic ring 1 is nested outside the second magnetic ring 2, completing the preliminary assembly of the magnetic rings.

[0049] Connection fixing

[0050] At the inner side of the outer magnetic ring 1, the second magnetic ring 2, the third magnetic ring 3, and the fourth magnetic ring 4, the connection cavity 8 is inserted into the connection rod 6. The connection rod 6 is connected to the connection cavity 8 by insertion and embedding, ensuring that the L-shaped structure of the connection rod 6 and the connection cavity 8 are closely embedded.

[0051] The fixed bolt 7 is installed at the connection hole 9 position on the left upper side of the connection cavity 8. The fixed bolt 7 is connected to the connection rod 6 and the connection hole 9 by threaded connection, and the fixed bolt 7 is tightened to make the connection between the magnetic rings more stable and reliable.

[0052] II. Magnetic ring adjustment stage

[0053] Thickness adjustment

[0054] When the operator needs to reduce the thickness of the total magnetic ring according to actual needs, the fixed bolt 7 at the connection position of the corresponding magnetic ring can be unscrewed. Then, the connection rod 6 is removed from the magnetic ring, thereby reducing one magnetic ring to achieve the purpose of reducing the thickness of the total magnetic ring. For example, if it is necessary to reduce the magnetic field strength or reduce the space occupied by the magnetic ring, the second magnetic ring 2 or the third magnetic ring 3 can be selected for removal.

[0055] Magnetic field strength adjustment

[0056] The magnetic field strength of the total magnetic ring can be adjusted by increasing or decreasing the number of magnetic rings. According to the needs of the actual application scene, the outer magnetic ring 1, the second magnetic ring 2, the third magnetic ring 3, and the fourth magnetic ring 4 can be selected for installation and use to obtain a stronger magnetic field strength, or some magnetic rings can be reduced to reduce the magnetic field strength. During the adjustment process, the above assembly steps are followed to ensure stable connection between the magnetic rings.

[0057] III. Magnetic ring maintenance and replacement stage

[0058] Damage detection

[0059] Regularly check the use of the magnetic ring, and when a damaged magnetic ring is found, it should be repaired and replaced in time. The damaged magnetic ring can be determined by visual inspection, magnetic field strength detection, etc.

[0060] Replacement operation

[0061] Unscrew the fixing bolt 7 at the connection position of the damaged magnetic ring, and take out the connecting rod 6 from the magnetic ring. Then, carefully separate the damaged magnetic ring from the whole.

[0062] Prepare a new magnetic ring of the same specification, and install the new magnetic ring to the corresponding position according to the assembly steps. Insert the connecting rod 6, and tighten the fixing bolt 7 to complete the replacement of the magnetic ring. Ensure that the connection between the newly installed magnetic ring and other magnetic rings is tight and reliable to ensure the normal use of the total magnetic ring.

[0063] Finally, it should be pointed out that the above is only the preferred embodiment of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacements for some of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. An injection-molded neodymium iron boron magnetic ring, comprising an outer magnetic ring (1), a second magnetic ring (2), a third magnetic ring (3), and a fourth magnetic ring (4); Its features are: A second magnetic ring (2) is provided on the inner side of the outer magnetic ring (1), a third magnetic ring (3) is provided on the inner side of the second magnetic ring (2), and a fourth magnetic ring (4) is provided on the inner side of the third magnetic ring (3). Multiple connecting rods (6) are respectively provided on the inner side of the outer magnetic ring (1), the second magnetic ring (2), the third magnetic ring (3), and the fourth magnetic ring (4). A connecting cavity (8) is provided at the connection point between the connecting rod (6) and the inner side of the outer magnetic ring (1), the second magnetic ring (2), the third magnetic ring (3), and the fourth magnetic ring (4).

2. The injection-molded NdFeB magnetic ring according to claim 1, characterized in that: The connecting rod (6) is connected to the connecting cavity (8) by an insertion connection method, and a connecting hole (9) is provided on the upper left side of the connecting cavity (8).

3. The injection-molded NdFeB magnetic ring according to claim 2, characterized in that: A fixing bolt (7) is provided at the connection position of the connecting rod (6) and the connecting hole (9). The fixing bolt (7) is connected to the connecting rod (6) and the connecting hole (9) by means of threaded connection.

4. The injection-molded NdFeB magnetic ring according to claim 3, characterized in that: The multiple connecting rods (6) are L-shaped structures and are interlocked with the connecting cavity (8).

5. The injection-molded NdFeB magnetic ring according to claim 4, characterized in that: The outer magnetic ring (1), the second magnetic ring (2), the third magnetic ring (3) and the fourth magnetic ring (4) are respectively provided with inner holes (5) at the middle inner side position, and the outer diameter of the second magnetic ring (2) matches the diameter of the inner hole (5) of the outer magnetic ring (1).

6. The injection-molded NdFeB magnetic ring according to claim 5, characterized in that: The outer diameter of the third magnetic ring (3) matches the inner diameter (5) of the second magnetic ring (2), and the outer diameter of the fourth magnetic ring (4) matches the inner diameter (5) of the third magnetic ring (3).

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