A ring core polishing apparatus

Abstract

The utility model relates to magnetic material processing equipment technical field, concretely is a kind of annular magnetic core polishing equipment, including central shaft, rotating shaft and rotating inner cylinder, central shaft passes through rotating inner cylinder and extends to the inside of rotating inner cylinder, and the upper end of central shaft is fixedly connected with fixed block, the upper surface of fixed block is equipped with fixed slot, and rotating shaft is inserted with fixed slot.The utility model discloses a kind of fixed block, sliding plate, clamping block, push block, limiting spring, protection assembly and fixed assembly are set, by inserting rotating shaft into the inside of fixed slot on fixed block, so that clamping block is engaged with clamping groove, rotating shaft is fixed, by pushing push block, so that push block drives sliding plate to compress limiting spring, so that clamping block is separated from clamping groove, wherein the protection shell of protection assembly protects push block, and fixed assembly protects protection shell, avoids the phenomenon that rotating shaft appears to separate from fixed block, improves the stability of rotating shaft rotation, avoids the technical problem of damaging equipment.

Description

Technical Field

[0001] This utility model relates to the technical field of magnetic material processing equipment, specifically a ring-shaped magnetic core polishing device. Background Technology

[0002] A toroidal magnetic core is a type of magnetic core, typically ring-shaped or cylindrical. This shape helps reduce magnetic leakage, improves magnetic flux concentration, and makes the magnetic field distribution more uniform. The closed structure of a toroidal core allows magnetic flux to circulate within the ring, further reducing magnetic leakage and improving efficiency. Therefore, toroidal cores need to be polished. Polishing significantly improves the surface quality of the toroidal core, making it smoother, reducing burrs and roughness, thereby improving its electromagnetic and mechanical properties. The smoother surface of the polished core helps reduce resistance and improve conductivity, thus reducing energy consumption and heat generation.

[0003] The prior art, disclosed in CN208196500U, discloses a ring-shaped magnetic core polishing device, relating to the field of magnetic material processing equipment technology. This invention includes a housing, within which a polishing chamber, a transmission chamber, and a power chamber are arranged sequentially from top to bottom. A rotating inner cylinder is arranged within the polishing chamber, and a magnetic core mounting mechanism is arranged inside the rotating inner cylinder. The magnetic core mounting mechanism includes a rotating shaft and several support rods mounted on the rotating shaft. Each support rod has a cylindrical magnet at its end for fixing the ring-shaped magnetic core. A planetary gear transmission mechanism is arranged in the transmission chamber to drive the rotating inner cylinder and the magnetic core mounting mechanism to rotate. A drive mechanism connected to the planetary gear transmission mechanism is arranged in the power chamber. This invention has the advantages of simple structure, convenient operation, and good polishing effect.

[0004] With the above configuration, the existing polishing equipment, by setting up a drive mechanism, a planetary gear transmission mechanism, and a magnetic core mounting mechanism, allows the drive mechanism to drive the planetary gear transmission mechanism after each mechanism is installed. This, in turn, causes the rotating inner cylinder and the magnetic core mounting mechanism to rotate, creating a speed difference between them. Because the abrasive particles inside the rotating inner cylinder completely cover the annular magnetic core, the abrasive particles and the moving annular magnetic core generate good friction, enabling all-around polishing of the annular magnetic core. The polished annular magnetic core has a high surface smoothness and good polishing effect, while also improving polishing efficiency. However, the existing polishing equipment has the following drawbacks during operation:

[0005] In the existing polishing equipment, the inner cylinder is filled with a lot of abrasive gravel, and the central shaft drives the rotating shaft to rotate inside the gravel. A support rod is installed on the rotating shaft, which pushes the gravel to move. The gravel exerts a reverse thrust on the support rod. Since the central shaft and the rotating shaft are connected by threads, the rotating shaft may become loose when rotating in the gravel, resulting in a gap between the rotating shaft and the central shaft. This causes vibration, accelerates thread wear, and in severe cases, the rotating shaft may completely unscrew from the central shaft, damaging the equipment and hindering the polishing of the toroidal magnetic core. Utility Model Content

[0006] This utility model aims to provide a ring-shaped magnetic core polishing device, mainly to solve the technical problem that the existing technology has a problem where the central shaft and the rotating shaft are connected by threads, which causes the rotating shaft to loosen when rotating in the gravel. In severe cases, it may even come off, which can easily damage the polishing equipment and is not conducive to the polishing of the ring-shaped magnetic core.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0008] A ring-shaped magnetic core polishing device includes a central shaft, a rotating shaft, and a rotating inner cylinder. The central shaft passes through the rotating inner cylinder and extends into its interior. A fixed block is fixedly connected to the upper end of the central shaft, and a fixed groove is formed on the upper surface of the fixed block. The rotating shaft is inserted into the fixed groove. Symmetrical concave grooves are formed on the inner wall of the rotating shaft. A sliding plate is slidably connected to the inner wall of the concave grooves. A pressing block is fixedly connected to the upper end of the sliding plate and is slidably connected to the concave grooves. A limit spring is fixedly connected to the inner wall of the concave grooves, and the other end of the limit spring is fixedly connected to the pressing block. A locking block is fixedly connected to the lower end of the sliding plate and is slidably connected to the concave grooves. Symmetrical locking grooves are formed on the inner wall of the fixed grooves, and the locking block engages with the locking grooves. A pull plate is fixedly connected to the upper end of the rotating shaft, and a movable groove is formed on the bottom surface of the pull plate. A protective component is installed inside the movable groove.

[0009] The working principle and beneficial effects of this utility model:

[0010] 1. Working principle: When polishing the toroidal magnetic core, first insert the rotating shaft with the toroidal magnetic core into the fixing groove on the fixing block. The fixing groove presses against the locking block on the rotating shaft, causing the locking block to move the sliding plate. The sliding plate then moves the pressing block to press against the limiting spring. At this time, under the action of the limiting spring's rebound force, the locking block is pushed to lock into the locking groove, limiting the rotating shaft. Then, the protective components are adjusted so that the protective shell protects the pressing block, thus fixing the rotating shaft. Then, the rotating shaft can be rotated to polish the toroidal magnetic core with abrasive.

[0011] 2. Beneficial effects:

[0012] Existing technology involves setting up a drive mechanism, a planetary gear transmission mechanism, and a magnetic core mounting mechanism. After these mechanisms are installed, activating the drive mechanism drives the planetary gear transmission mechanism, which in turn drives the rotating inner cylinder and the magnetic core mounting mechanism to rotate. A speed difference is created between the rotating inner cylinder and the magnetic core mounting mechanism. Because the sand grains inside the rotating inner cylinder completely cover the annular magnetic core, the sand grains and the moving annular magnetic core form a good frictional effect, enabling all-round polishing of the annular magnetic core. The polished annular magnetic core has a high surface smoothness and good polishing effect, while also improving polishing efficiency. However, in the existing polishing equipment, the rotating inner cylinder is filled with a lot of sand, and the central shaft drives the rotating shaft to rotate inside the sand. A support rod is installed on the rotating shaft, which pushes the sand to move. The sand exerts a reverse thrust on the support rod. Because the central shaft and the... The rotating shafts are connected by threads, which can cause them to loosen when rotating in gravel, resulting in gaps between the rotating shaft and the central shaft. This causes vibration, accelerates thread wear, and in severe cases, can cause the rotating shaft to completely unscrew from the central shaft, damaging the equipment and hindering the polishing of the ring-shaped magnetic core. This solution addresses this by incorporating a fixing block, a concave groove, a sliding plate, a locking block, a push block, a limit spring, a protective assembly, and a fixing assembly. The rotating shaft is inserted into the fixing groove on the fixing block, where the locking block engages with the groove to secure it. Pressing the push block causes the sliding plate to compress the limit spring, disengaging the locking block from the groove and facilitating disassembly of the rotating shaft. The protective housing of the protective assembly protects the push block, and the fixing assembly protects the protective housing, preventing the rotating shaft from detaching from the fixing block, improving the stability of the rotating shaft's rotation, and avoiding technical problems that could damage the equipment.

[0013] Preferably, the protective component includes a protective shell, which is slidably connected to the movable groove. One side of the protective shell is slidably connected to the outer wall of the rotating shaft. A compression spring is fixedly connected to the inner wall of the movable groove, and the other end of the compression spring is fixedly connected to the upper end of the protective shell. The protective shell is fitted onto the outer wall of the push block, and a transverse groove is formed on the outer wall of the protective shell. A fixing component is installed on the inner wall of the transverse groove. By setting the protective component, the push block can be protected, avoiding excessive wear during high-speed rotation, and also preventing the risk of the push block being dislodged from the groove due to impact from gravel.

[0014] Preferably, the fixing component includes a fixing rod that is slidably connected to the inner wall of the transverse groove. A fixing spring is fixedly connected to the inner wall of the transverse groove, and the other end of the fixing spring is fixedly connected to the fixing rod. A limiting groove is formed in the inner wall of the movable groove, and the fixing rod is inserted into the limiting groove. A push plate is slidably connected to the inner wall of the limiting groove, and a push rod is fixedly connected to one side of the push plate. The push rod passes through the pull plate and is slidably connected to it. By setting the fixing component, the protective shell can be fixed, so that when the rotating shaft is disassembled, the protective shell is disengaged from the push block and the protective shell is limited, making it convenient to press the push block and convenient to disassemble the rotating shaft and the annular magnetic core.

[0015] Preferably, a compression spring is fixedly connected to the bottom of the inner wall of the fixing groove, and a compression plate is fixedly connected to the other end of the compression spring. The compression plate is slidably connected to the inner wall of the fixing groove, and the compression plate abuts against the lower end of the rotating shaft. By setting the compression spring and the compression plate, when disassembling the rotating shaft, the compression spring can push the rotating shaft out a certain distance, making it easier to remove the rotating shaft. At the same time, the compression spring applies a compressive force to the rotating shaft through the compression plate, making the locking block more securely engaged in the slot.

[0016] Preferably, a retaining ring is welded to the outer wall of the rotating shaft, and a sealing ring is fixed to the side of the retaining ring that contacts the fixing block. By setting the retaining ring and the sealing ring, sand and dust can be prevented from entering the interior of the fixing groove.

[0017] Preferably, a pull rod is fixed to the outer wall of the protective shell, and the pull rod is made of stainless steel. By setting the pull rod, it is easy to pull the pull rod to move the protective shell.

[0018] Preferably, the lower end of the locking block has a bevel, which facilitates the installation of the rotating shaft. Attached Figure Description

[0019] Figure 1 This is a structural diagram of the present utility model patent;

[0020] Figure 2 This is a diagram of the internal structure of this utility model patent;

[0021] Figure 3 This is a cross-sectional structural diagram of the present utility model patent;

[0022] Figure 4 This is a structural diagram of the fixing block and rotating shaft of this utility model patent;

[0023] Figure 5 This utility model patent Figure 2 Structural diagram at point A;

[0024] Figure 6 This utility model patent Figure 2 Structural diagram at point B;

[0025] Figure 7This utility model patent Figure 3 Structural diagram at point C.

[0026] The reference numerals in the accompanying drawings of the instruction manual include: 1. Central shaft; 2. Rotating shaft; 3. Rotating inner cylinder; 4. Fixing block; 5. Fixing groove; 6. Concave groove; 7. Slide plate; 8. Pressing block; 9. Limiting spring; 10. Locking block; 11. Locking groove; 12. Pull plate; 13. Movable groove; 14. Protective shell; 15. Compression spring; 16. Horizontal groove; 17. Fixing rod; 18. Fixing spring; 19. Limiting groove; 20. Push plate; 21. Push rod; 22. Compression spring; 23. Compression plate; 24. Fixing ring; 25. Pull rod. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] like Figure 1-7As shown, a ring-shaped magnetic core polishing device includes a central shaft 1, a rotating shaft 2, and a rotating inner cylinder 3. The central shaft 1 passes through the rotating inner cylinder 3 and extends into its interior. A fixing block 4 is fixedly connected to the upper end of the central shaft 1. A fixing ring 24 is welded to the outer wall of the rotating shaft 2. A sealing ring is fixedly connected to the side of the fixing ring 24 that contacts the fixing block 4. A fixing groove 5 is formed on the upper surface of the fixing block 4. The rotating shaft 2 is inserted into the fixing groove 5. A symmetrical concave groove 6 is formed on the inner wall of the rotating shaft 2. A sliding plate 7 is slidably connected to the wall. A push block 8 is fixedly connected to the upper end of the sliding plate 7. The push block 8 is slidably connected to the concave groove 6. A limit spring 9 is fixedly connected to the inner wall of the concave groove 6. The other end of the limit spring 9 is fixedly connected to the push block 8. A locking block 10 is fixedly connected to the lower end of the sliding plate 7. The locking block 10 is slidably connected to the concave groove 6. The inner wall of the fixed groove 5 has symmetrical locking grooves 11. The locking block 10 engages with the locking grooves 11. A pull plate 12 is fixedly connected to the upper end of the rotating shaft 2. A movable groove 13 is opened on the bottom surface of the pull plate 12. The internal structure of 13 is equipped with a protective assembly, which includes a protective shell 14. The protective shell 14 is slidably connected to the movable groove 13. One side of the protective shell 14 is slidably connected to the outer wall of the rotating shaft 2. A compression spring 15 is fixedly connected to the inner wall of the movable groove 13. The other end of the compression spring 15 is fixedly connected to the upper end of the protective shell 14. The protective shell 14 is fitted onto the outer wall of the push block 8. A pull rod 25 is fixedly connected to the outer wall of the protective shell 14. The pull rod 25 is made of stainless steel. A transverse groove 16 is formed on the outer wall of the protective shell 14. A fixing component is installed on the inner wall of the groove 16. The fixing component includes a fixing rod 17, which is slidably connected to the inner wall of the transverse groove 16. A fixing spring 18 is fixedly connected to the inner wall of the transverse groove 16. The other end of the fixing spring 18 is fixedly connected to the fixing rod 17. A limiting groove 19 is opened on the inner wall of the movable groove 13. The fixing rod 17 is inserted into the limiting groove 19. A push plate 20 is slidably connected to the inner wall of the limiting groove 19. A push rod 21 is fixedly connected to one side of the push plate 20. The push rod 21 passes through the pull plate 12 and is slidably connected to it.

[0029] like Figure 2 and Figure 6 As shown, a compression spring 22 is fixedly connected to the bottom of the inner wall of the fixed groove 5, and a compression plate 23 is fixedly connected to the other end of the compression spring 22. The compression plate 23 is slidably connected to the inner wall of the fixed groove 5, and the compression plate 23 abuts against the lower end of the rotating shaft 2.

[0030] As can be seen from the above, the specific embodiments of this utility model are as follows:

[0031] When polishing the annular magnetic core is required, firstly, the rotating shaft 2 with the annular magnetic core is inserted into the fixing groove 5 on the fixing block 4, causing the fixing groove 5 to press the locking block 10 on the rotating shaft 2. This causes the locking block 10 to move the sliding plate 7 inside the concave groove 6, which in turn causes the sliding plate 7 to move the pressing block 8 to press the limiting spring 9. At this time, the rotating shaft 2 pushes the pressing plate 23 to press the pressing spring 22. When the pressing plate 23 can no longer be pushed, the locking block 10, through the sliding plate 7, is locked in the locking groove 11 under the action of the rebound force of the limiting spring 9, thus fixing the rotating shaft 2. Then, the push rod 21 is pressed, causing the push rod 21 to push the push plate 20 to move. This causes the push plate 20 to push the fixing rod 17 out of the limiting groove 19, so that the fixing rod 17 is inside the transverse groove 16 and presses the fixing spring 18. At this time, under the action of the rebound force of the compression spring 15, the protective shell 14 is pushed to fit onto the outer wall of the pressing block 8, thus protecting the pressing block 8. Then, the rotating shaft 2 can be rotated to polish the annular magnetic core with gravel. When the polished annular magnetic core needs to be disassembled, first pull the pull rod 25, so that the pull rod 25 drives the protective shell 14 to slide inside the movable groove 13, and the protective shell 14 squeezes the compression spring 15. When the protective shell 14 is separated from the push block 8, the horizontal groove 16 is aligned with the limiting groove 19. At this time, the fixing rod 17 is pushed into the limiting groove 19 by the rebound force of the fixing spring 18, and pushes the push plate 20 and push rod 21 to move. Then, press the push block 8, so that the push block 8 squeezes the limiting spring 9, and drives the slide plate 7 and the locking block 10 to move, so that the locking block 10 is separated from the locking groove 11. At this time, under the rebound force of the compression spring 22, the compression plate 23 is pushed to push the rotating shaft 2 out of the fixing groove 5. Then, the rotating shaft 2 and the annular magnetic core can be pulled out by pulling the pull plate 12, and then the annular magnetic core can be disassembled.

[0032] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A ring core polishing apparatus comprising a center shaft (1), a rotating shaft (2), and a rotating inner cylinder (3), characterized in that, The central shaft (1) passes through the rotating inner cylinder (3) and extends into the interior of the rotating inner cylinder (3). A fixing block (4) is fixedly connected to the upper end of the central shaft (1). A fixing groove (5) is provided on the upper surface of the fixing block (4). The rotating shaft (2) is inserted into the fixing groove (5). A symmetrical concave groove (6) is provided on the inner wall of the rotating shaft (2). A sliding plate (7) is slidably connected to the inner wall of the concave groove (6). A pressing block (8) is fixedly connected to the upper end of the sliding plate (7). The pressing block (8) is slidably connected to the concave groove (6). 6) The inner wall is fixed with a limiting spring (9), the other end of the limiting spring (9) is fixed with the push block (8), the lower end of the slide plate (7) is fixed with a locking block (10), the locking block (10) is slidably connected with the concave groove (6), the inner wall of the fixed groove (5) is provided with symmetrical locking grooves (11), the locking block (10) is engaged with the locking groove (11), the upper end of the rotating shaft (2) is fixed with a pull plate (12), the bottom surface of the pull plate (12) is provided with a movable groove (13), and a protective component is installed inside the movable groove (13).

2. An annular core polishing apparatus according to claim 1, wherein: The protective assembly includes a protective shell (14), which is slidably connected to the movable groove (13). One side of the protective shell (14) is slidably connected to the outer wall of the rotating shaft (2). A compression spring (15) is fixedly connected to the inner wall of the movable groove (13). The other end of the compression spring (15) is fixedly connected to the upper end of the protective shell (14). The protective shell (14) is fitted onto the outer wall of the push block (8). A transverse groove (16) is provided on the outer wall of the protective shell (14). A fixing component is installed on the inner wall of the transverse groove (16).

3. An annular core polishing apparatus as claimed in claim 2, wherein: The fixing component includes a fixing rod (17), which is slidably connected to the inner wall of the transverse groove (16). A fixing spring (18) is fixedly connected to the inner wall of the transverse groove (16). The other end of the fixing spring (18) is fixedly connected to the fixing rod (17). A limiting groove (19) is opened on the inner wall of the movable groove (13). The fixing rod (17) is inserted into the limiting groove (19). A push plate (20) is slidably connected to the inner wall of the limiting groove (19). A push rod (21) is fixedly connected to one side of the push plate (20). The push rod (21) passes through the pull plate (12) and is slidably connected to it.

4. An annular core polishing apparatus as claimed in claim 1, wherein: A compression spring (22) is fixedly connected to the bottom of the inner wall of the fixed groove (5), and a compression plate (23) is fixedly connected to the other end of the compression spring (22). The compression plate (23) is slidably connected to the inner wall of the fixed groove (5), and the compression plate (23) abuts against the lower end of the rotating shaft (2).

5. An annular core polishing apparatus as defined in claim 1, wherein: A fixing ring (24) is welded to the outer wall of the rotating shaft (2), and a sealing ring is fixed to the side of the fixing ring (24) that contacts the fixing block (4).

6. An annular core polishing apparatus as defined in claim 2, wherein: A pull rod (25) is fixed to the outer wall of the protective shell (14), and the pull rod (25) is made of stainless steel.

7. An annular core polishing apparatus as defined in claim 1, wherein: The lower end of the card block (10) has a slope.

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