Miniature super magnetic separator

Abstract

This utility model discloses a miniature, high-strength magnetic separator, comprising a housing with a liquid inlet on one side wall and a chip discharge port on the opposite side wall. A liquid outlet is located at the bottom of the housing. A magnetic separation mechanism and a chip discharge mechanism are arranged between the liquid inlet and the chip discharge port. The magnetic separation mechanism includes a drive motor and a magnetic hub. The magnetic hub includes an outer cylinder, an inner cylinder, neodymium magnets, a main shaft, end plates, and gears. The outer cylinder is a hollow cylindrical structure, with sealing end plates connected to both open ends. Gears are located on the outer side of the sealing end plates. Neodymium magnets are installed on the inner cylinder, which is fixed to the main shaft and installed inside the outer cylinder. This utility model is miniature, has high magnetic strength, and is equipped with gear drive, avoiding roller slippage caused by uneven magnetic properties leading to iron slag metabolism. It results in a higher slag discharge rate, drier slag, reduced motor workload, increased service life, and lower equipment maintenance costs.

Description

Technical Field

[0001] This utility model relates to the field of magnetic separator technology, specifically to a miniature ultra-strong magnetic separator. Background Technology

[0002] Magnetic separators are used to purify coolant (chip oil or emulsion) in grinding machines and other machine tools. The magnetic rollers of the separator separate ferromagnetic chips and grinding shavings from the coolant, keeping the coolant clean, thereby improving the quality of processed products, reducing costs, and increasing production efficiency.

[0003] The existing magnetic separators on the market are mainly rubber roller type magnetic separators. The existing rubber roller type magnetic separators are mainly composed of a housing, a geared motor, a magnetic hub and rubber rollers. The geared motor drives the magnetic hub to rotate. After the coolant containing powdery magnetic impurities enters the housing, the impurities are adsorbed onto the outer wall of the magnetic hub. Then, the rubber rollers crush the liquid entrained in the impurities adsorbed onto the outer wall of the magnetic hub. Finally, the impurities are separated from the magnetic hub by a scraper.

[0004] The magnets on the outer wall of the aforementioned rubber roller type magnetic separator are generally made of ferrite magnets. These magnets have weak magnetism and a weak attraction for magnetic impurities, but the scraper can easily remove the impurities from the outer wall of the magnetic hub. If neodymium iron magnets are used, they have strong magnetism and a strong attraction for magnetic impurities, making it difficult for the scraper to remove the impurities adsorbed on the magnetic hub. Without gear drive, the rubber roller is prone to slippage, and ferromagnetic impurities cannot be discharged normally, accumulating behind the rubber roller. Over time, they may solidify, easily increasing the workload of the motor and increasing the frequency of motor damage.

[0005] Therefore, there is an urgent need to develop a magnetic separator that can leverage the adsorption force of neodymium iron magnets to enhance the magnetic hub, as well as the ability of ferrite magnets to easily scrape off impurities. It should also be equipped with gear drive to avoid the slippage of the rubber roller caused by iron slag metabolism due to uneven magnetic properties in small-flow models. Summary of the Invention

[0006] The purpose of this invention is to overcome the above-mentioned shortcomings and provide a miniature super-strong magnetic separator suitable for low-flow models. It avoids the problem of incomplete impurity removal caused by the use of neodymium magnets, and avoids the slippage of rubber rollers caused by iron slag metabolism due to uneven magnetism. It has a higher slag discharge rate, drier slag discharge, reduced motor workload, improved service life of the magnetic separator, and reduced equipment maintenance costs.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a miniature, high-strength magnetic separator, characterized in that it includes a housing; a motor fixing plate is welded to the outer side plate of the housing; rubber roller fixing seats are welded to both sides of the housing; a magnetic hub fixing seat is welded to the inside of the housing; a bottom arc plate, a guide plate, and a water baffle are welded to the inside of the housing; a cover plate is fixed to the top of the housing; a protective cover is fixed to the top of the housing; a liquid inlet is provided at the rear of the bottom plate of the housing; a chip discharge port is provided on the side wall of the housing opposite to the liquid inlet; a liquid outlet is provided on the left side plate of the housing; a magnetic separation mechanism and a chip discharge mechanism are provided between the liquid inlet and the chip discharge port.

[0008] The magnetic separation mechanism includes a drive motor and a magnetic hub. The drive motor is mounted on a motor mounting plate and is connected to the magnetic hub gear via a sprocket drive. The magnetic hub includes an outer cylinder, an inner cylinder, a sealing end plate, a magnetic hub bearing, a magnetic hub gear, a magnetic hub main shaft, a bar magnet, and a non-circular magnet. The outer cylinder is a hollow cylindrical structure with openings at both ends. Sealing end plates are connected to both open ends of the outer cylinder. Magnetic hub gears are located on both sides of the sealing end plates. Magnetic hub bearings are embedded inside the sealing end plates. The magnetic hub main shaft is inserted into the magnetic hub bearings and fixed to magnetic hub mounting seats on both sides of the housing. The inner cylinder includes a reinforcing plate, an L-shaped plate, and a U-shaped plate. The system comprises two circular reinforcing plates, one of which is welded into the main shaft of the magnetic hub. An L-shaped plate is welded to the upper plane of the two reinforcing plates, with a long magnet attached to its upper surface. Two U-shaped plates are embedded in the grooves of the two reinforcing plates, with an irregularly shaped magnet attached to their upper surface. Three arc-shaped plates, of the same length as the L-shaped and U-shaped plates, are welded to the outer circumference of the two reinforcing plates, tangent to both the L-shaped and U-shaped plates, with long magnets attached to their upper surfaces. The irregularly shaped magnets and long magnets inside the inner cylinder of the magnetic hub are neodymium magnets, with a distance of two millimeters between them and the outer cylinder. The outer cylinder of the magnetic hub is concentric with the bottom arc plate. The distance between the outer cylinder of the magnetic hub and the bottom arc plate is three millimeters.

[0009] The chip removal mechanism includes a rubber roller assembly and a chip removal component. The rubber roller assembly includes a rubber roller, a rubber roller shaft, a rubber roller bearing, a rubber roller sprocket, and a rubber roller shaft fixing mechanism. A rubber roller sprocket is inserted through the right side of the rubber roller shaft. The rubber roller shaft fixing mechanism consists of a bearing seat, a plectrum handle, a telescopic spring, and a plug shaft. The plug shaft is inserted through the bearing seat, and the telescopic spring is sleeved inside the plug shaft above the bearing seat. A plectrum handle is screwed onto the top of the plug shaft. Two rubber roller shaft fixing mechanisms are respectively fixed to rubber roller fixing seats on both sides of the housing. The rubber roller shaft is inserted through the bearing seats on both sides. The telescopic spring makes the rubber roller tightly tangential to the outer cylinder of the magnetic drum. At the same time, the magnetic hub gear cooperates with the rubber roller sprocket, and the magnetic hub gear drives the operation of the rubber roller assembly. The chip removal component includes a chip removal plate, a mudguard plate, and a brass scraper. A chip removal plate is installed above the chip removal port, and mudguard plates are installed on both sides. A brass scraper is installed above the chip removal plate.

[0010] By adopting the above technical solution, all magnets are neodymium magnets with N-pole mounting. Due to the characteristic that the magnetism of long bar magnets is less than that of irregularly shaped magnets, this arrangement results in more and smoother slag discharge. While ensuring the strong adsorption force of the magnetic hub, it also easily scrapes away ferromagnetic impurities from the side wall of the outer cylinder of the magnetic hub, improving the separation effect of the magnetic separator. By using neodymium magnets to enhance magnetism, when the ferromagnetic liquid flows through the gap between the bottom arc plate and the outer cylinder of the magnetic drum, the reduced channel spacing allows the magnetic hub to generate a stronger adsorption force on the flowing liquid.

[0011] By adopting the above technical solution, the outer cylinder of the magnetic hub adsorbs ferromagnetic impurities while carrying out a small amount of wastewater during operation. The extension spring makes the rubber roller and the outer cylinder of the magnetic hub drier in terms of slag discharge. The drive of the magnetic hub gear and the rubber roller sprocket avoids the phenomenon of rubber roller slippage caused by iron slag metabolism due to uneven magnetism. The slag discharge rate is higher, the workload of the motor is reduced, the service life of the magnetic separator is improved, and the equipment maintenance cost is reduced.

[0012] The aforementioned miniature super-strong magnetic separator includes a baffle plate welded to the rear of the housing at the liquid inlet. The bottom arc plate and the guide plate are connected to each other. The guide plate is a 140° V-shaped plate. The bottom arc plate is semi-circular and concentric with the magnetic hub. The bottom arc plate has a water inlet guide port on the side opposite to the liquid inlet and a water outlet guide port on the side opposite to the chip discharge port.

[0013] By adopting the above technical solution, the inlet baffle reduces the liquid flow rate entering the tank through the inlet, preventing high-velocity liquid from quickly passing through the bottom arc plate and reducing the magnetic hub's ability to capture magnetic impurities. Furthermore, it prevents liquid splashing caused by the fluid impacting the magnetic hub after high-speed entry from the inlet. When the liquid flows towards the magnetic hub via the guide plate, the inlet guide on the bottom arc plate restricts the flow direction, causing the liquid to converge at the center of the magnetic hub, preventing the liquid from passing through the non-magnetic areas at both ends of the magnetic hub, further improving the magnetic hub's ability to capture ferromagnetic impurities. The outlet guide on the bottom arc plate allows the liquid to pass through quickly, preventing overflow due to excessive liquid flow.

[0014] The aforementioned miniature super-strong magnetic separator, wherein the inner cylinder of the magnetic hub and the main shaft of the magnetic hub are integral, the outer cylinder of the magnetic hub is concentric with the main shaft of the magnetic hub, and the main shaft of the magnetic hub has slots at both ends, which are respectively fixed above the magnetic hub mounting base.

[0015] By adopting the above technical solution, when the outer cylinder of the magnetic hub rotates in the axial direction, the inner cylinder of the magnetic hub is firmly fixed on the magnetic hub mounting base, and the position of the inner cylinder of the magnetic hub relative to the outer cylinder of the magnetic hub in the axial direction remains unchanged.

[0016] The aforementioned miniature super-strong magnetic separator, wherein the sealing end plate is concentric with the outer cylinder of the magnetic hub, the sealing end plate is made of PP material, the outer cylinder of the magnetic hub is provided with mounting holes and is connected to the sealing end plate by a pin, the sealing end plate is provided with a groove, and a sealing ring is provided in the groove to seal and install with the outer cylinder of the magnetic hub.

[0017] By adopting the above technical solution, the sealing end plate forms a good sealing effect with the outer cylinder of the magnetic hub through the sealing ring in the groove, which prevents liquid from seeping in due to long-term immersion and reducing the life of the magnetic hub, and is easy to install.

[0018] The aforementioned miniature super-strong magnetic separator, wherein the irregularly shaped magnet and the long bar magnet are two neodymium magnets with different magnetic properties, wherein the irregularly shaped magnet has a stronger magnetic property than the long bar magnet, the irregularly shaped magnet is located above the U-shaped plate, and the long bar magnet is provided above the L-shaped plate and the arc-shaped plate.

[0019] By adopting the above technical solution, a large-magnetic irregularly shaped magnet is used at the water flow gathering point, while a weak-magnetic long bar magnet is used in the rest of the area. This allows for better impurity capture without significantly increasing production costs.

[0020] The aforementioned miniature super-strong magnetic separator includes a chip discharge port that is a 120-degree guide plate, the chip discharge plate being made of stainless steel, mudguards installed on both sides of the chip discharge plate, the mudguards extending to both ends of the magnetic drum parallel to the sealing end plate, with a distance of one millimeter from the sealing end plate, and a brass scraper fixed above the chip discharge plate, tangent to the outer cylinder of the magnetic drum.

[0021] By adopting the above technical solution, ferromagnetic impurities attached to the outer cylinder of the magnetic hub are scraped into the slag outlet by a brass scraper, and the mud baffle effectively prevents the ferromagnetic impurities from accumulating on the surface of the chip discharge plate and falling back into the return box.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows.

[0023] 1. In this utility model, a miniature super-strong magnetic separator, the magnetic hub is installed with N poles, and the magnets are neodymium magnets with different magnetic properties. By utilizing the characteristic of magnetic strength from strong to weak, the slag discharge is smoother, avoiding the metabolic problems caused by uneven magnetic force of ferromagnetic impurities. This model has a small flow rate and narrow flow channel, which makes it easier for the magnets to capture ferromagnetic impurities and has a stronger adsorption force.

[0024] 2. In this utility model, a miniature super-strong magnetic separator, the magnetic hub and the rubber roller are driven by gears, and the rubber roller and the outer cylinder of the magnetic hub are pressed together by springs, which avoids the slippage of the rubber roller caused by iron slag metabolism due to uneven magnetism. The slag output is drier and the slag output rate is higher, effectively avoiding the risk of damage to the drive motor due to long-term high-damping operation.

[0025] 3. The miniature super-strong magnetic separator of this utility model is equipped with a baffle plate in the box to prevent liquid splashing caused by the liquid entering at high speed from the inlet and hitting the magnetic hub. The bottom arc plate is equipped with an inlet guide port to make the liquid gather at the magnetic center of the magnetic hub, so that the magnet can more easily capture ferromagnetic impurities and prevent the liquid from passing through the non-magnetic areas at both ends of the magnetic hub. The bottom arc plate is equipped with an outlet guide port to prevent overflow due to excessive liquid flow.

[0026] 4. In this utility model, a miniature super-strong magnetic separator, the sealing end plate and the outer cylinder of the magnetic hub are sealed with a sealing ring and connected by a pin, which avoids water entering the magnetic hub and shortening its lifespan. Attached Figure Description

[0027] Figure 1 This is a front view of the miniature ultra-strong magnetic separator proposed in this utility model.

[0028] Figure 2 This is a schematic diagram of the internal structure of the miniature ultra-strong magnetic separator proposed in this utility model.

[0029] Figure 3 Figure 2 Sectional view of plane AA.

[0030] Figure 4 Figure 2 BB section view.

[0031] Figure 5 This is a top view of the miniature ultra-strong magnetic separator proposed in this utility model.

[0032] Figure 6 This is a three-dimensional diagram of the miniature ultra-strong magnetic separator proposed in this utility model.

[0033] The correspondence between each mark and the component name is as follows.

[0034] 1. Housing, 101. Motor mounting base, 102. Rubber roller mounting base, 103. Magnetic hub mounting base, 104. Bottom arc plate, 105. Guide plate, 106. Water baffle, 107. Liquid inlet, 108. Liquid outlet, 109. Chip discharge port, 2. Cover plate, 3. Protective cover, 4. Drive motor, 5. Magnetic hub outer cylinder, 6. Magnetic hub inner cylinder, 601. Reinforcing plate, 602. L-shaped plate, 603. U-shaped plate, 604. Arc-shaped plate, 7. Sealing end plate, 8. Magnetic hub bearing, 9. Magnetic hub gear, 10. Magnetic hub main shaft, 11. Long bar magnet, 12. Irregular magnet, 13. Rubber roller, 14. Rubber roller shaft, 15. Rubber roller bearing, 16. Rubber roller sprocket, 17. Bearing seat, 18. Plum blossom handle, 19. Telescopic spring, 20. Insert shaft, 21. Chip discharge plate, 22. Mud baffle, and 23. Brass scraper. Detailed Implementation

[0035] To make the technical means, inventive features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.

[0036] Example: Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, a miniature super-strong magnetic separator includes a housing 1. A motor mounting plate 101 is welded to the outer side plate of the housing 1. Rubber roller mounting seats 102 are welded to both sides of the housing 1. A magnetic hub mounting seat 103 is welded to the inside of the housing 1. A bottom arc plate 104, a guide plate 105, and a water baffle plate 106 are welded to the inside of the housing 1. A cover plate 2 is fixed on the top of the housing 1. A protective cover 3 is fixed on the top of the housing 1. An inlet 107 is provided at the rear of the housing 1. A chip discharge port 108 is provided on the side wall of the housing 1 opposite to the inlet 107. An outlet 108 is provided on the left side of the housing 1. A magnetic separation mechanism and a chip discharge mechanism are provided between the inlet 107 and the chip discharge port 109.

[0037] The magnetic separation mechanism includes a drive motor 4 and a magnetic hub. The drive motor 4 is mounted on a motor mounting plate 101 and is connected to the magnetic hub gear 9 via a sprocket drive. The magnetic hub includes an outer cylinder 5, an inner cylinder 6, a sealing end plate 7, a magnetic hub bearing 8, a magnetic hub gear 9, a magnetic hub main shaft 10, a long bar magnet 11, and a shaped magnet 12. The outer cylinder 5 is a hollow cylindrical structure with openings at both ends. Sealing end plates 7 are connected to both open ends of the outer cylinder 5. Magnetic hub gears 9 are located on both sides of the sealing end plate 7. Magnetic hub bearings 8 are embedded inside the sealing end plate 7. The magnetic hub main shaft 10 passes through the magnetic hub bearings 8 and is fixed to the magnetic hub mounting seats 103 on both sides of the housing. The inner cylinder 6 includes a reinforcing plate 601, an L-shaped plate 602, a U-shaped plate 603, and an arc-shaped plate 604. Two circular plates 601 are welded together and inserted into the main shaft 10 of the magnetic hub. An L-shaped plate 602 is welded to the upper plane of the two reinforcing plates 601, and a long magnet 11 is attached to the upper part of the L-shaped plate 602. Two U-shaped plates 603 are embedded in the grooves of the two reinforcing plates 601, and an irregular magnet 12 is attached to the upper part of the U-shaped plate 603. Three arc-shaped plates 604 are of the same length as the L-shaped plate 602 and the U-shaped plate 603, and are welded to the upper part of the outer circle of the two reinforcing plates 601, respectively tangent to the L-shaped plate 602 and the U-shaped plate 603, and a long magnet 11 is attached to the upper part of them. The irregular magnet 12 and the long magnet 11 inside the inner cylinder 6 of the magnetic hub are neodymium magnets, and the distance between them and the outer cylinder 5 of the magnetic hub is two millimeters. The outer cylinder 5 of the magnetic hub is concentric with the bottom arc plate 104, and the distance between the outer cylinder 5 of the magnetic hub and the bottom arc plate 104 is three millimeters.

[0038] Both the long bar magnet 10 and the irregularly shaped magnet 11 are neodymium magnets with N pole mounting. Due to the fact that the magnetism of the long bar magnet 10 is less than that of the irregularly shaped magnet 11, this arrangement results in more and smoother slag discharge. While ensuring the strong adsorption force of the magnetic hub, it can also easily scrape off ferromagnetic impurities on the side wall of the outer cylinder 5 of the magnetic hub, thus improving the separation effect of the magnetic separator.

[0039] By using neodymium magnets to enhance magnetism, when the ferromagnetic liquid flows through the gap between the bottom arc plate 104 and the outer cylinder 5 of the magnetic drum, the magnetic hub generates a stronger adsorption force on the flowing liquid due to the reduction in the gap between the flow channels.

[0040] The chip removal mechanism includes a rubber roller assembly, a chip removal component, and a rubber roller shaft fixing mechanism. The rubber roller assembly includes a rubber roller 13, a rubber roller shaft 14, a rubber roller bearing 15, a rubber roller sprocket 16, and a rubber roller shaft fixing mechanism. The rubber roller sprocket 16 is inserted through the right side of the rubber roller shaft 14. The rubber roller shaft fixing mechanism includes a bearing seat 17, a plectrum handle 18, a telescopic spring 19, and a plug shaft 20. The plug shaft 20 is inserted through the bearing seat 17, and the telescopic spring 18 is fitted inside the plug shaft 20 above the bearing seat 17. A plectrum handle 18 is screwed onto the top of the plug shaft 20. Two rubber rollers... The shaft fixing mechanism is fixed on the rubber roller fixing seats 102 on both sides of the housing 1; the rubber roller shaft 14 is inserted into the bearing seats 17 on both sides, and the rubber roller 13 is tightly tangential to the outer cylinder 5 of the magnetic drum by the extension spring 19. At the same time, the magnetic hub gear 9 cooperates with the rubber roller sprocket 6, and the magnetic hub gear 9 drives the operation of the rubber roller assembly; the chip removal assembly includes a chip removal plate 19, a mudguard 20 and a brass scraper 21. The chip removal plate 19 is installed above the chip removal port 109, and the mudguards 20 are installed on both sides; the brass scraper 21 is installed above the chip removal plate 19.

[0041] While the magnetic hub outer cylinder 5 adsorbs ferromagnetic impurities during operation, it also carries out a small amount of wastewater. The extension spring 19 makes the rubber roller 13 and the magnetic hub outer cylinder 5 drier in terms of slag discharge. The drive of the magnetic hub gear 9 and the rubber roller sprocket 6 avoids the phenomenon of rubber roller slippage caused by iron slag metabolism due to uneven magnetism, resulting in a higher slag discharge rate, reducing the workload of the motor, improving the service life of the magnetic separator, and reducing equipment maintenance costs.

[0042] A baffle plate 106 is welded to the rear of the housing 1, located at the liquid inlet 107. The bottom arc plate 104 and the guide plate 105 are connected to each other. The guide plate 105 is a 140° V-shaped plate. The bottom arc plate 104 is semi-circular and concentric with the magnetic hub. The bottom arc plate 104 has a water inlet guide port on the side opposite to the liquid inlet 107 and a water outlet guide port on the side opposite to the chip discharge port 109.

[0043] The baffle plate 106 reduces the flow velocity of the liquid entering the tank 1 through the inlet 107, preventing high-velocity liquid from quickly passing through the bottom arc plate 104 and increasing the effect of capturing magnetic impurities. In addition, it can also prevent liquid splashing caused by the fluid hitting the magnetic hub after entering at high speed from the inlet 107. When the liquid flows to the magnetic hub through the guide plate 105, the water inlet guide on the bottom arc plate 104 restricts the direction of the water flow, causing the liquid to gather at the center of the magnetic hub and preventing the liquid from passing through the non-magnetic areas at both ends of the magnetic hub, further improving the effect of the magnetic hub in capturing ferromagnetic impurities. The water outlet guide on the bottom arc plate 104 allows the liquid to pass through quickly, preventing the overflow phenomenon of excessive liquid flow.

[0044] The inner cylinder 6 of the magnetic hub and the main shaft 10 of the magnetic hub are integrated. The outer cylinder 5 of the magnetic hub is concentric with the main shaft 10 of the magnetic hub. The main shaft 10 of the magnetic hub has slots at both ends, which are fixed above the magnetic hub mounting base 103. This ensures that when the outer cylinder 5 of the magnetic hub rotates in the axial direction, the inner cylinder 6 of the magnetic hub is firmly fixed on the magnetic hub mounting base, and the position of the inner cylinder 6 relative to the outer cylinder 5 of the magnetic hub in the axial direction remains unchanged.

[0045] The irregularly shaped magnet 12 and the long bar magnet 11 are two neodymium magnets with different magnetic properties. The irregularly shaped magnet 12 has a stronger magnetic field than the long bar magnet 11. The irregularly shaped magnet 12 is located above the U-shaped plate 603, while the long bar magnet 11 is located above the L-shaped plate 602 and the arc-shaped plate 604. The irregularly shaped magnet 12 with stronger magnetic field is used at the water flow concentration point, while the long bar magnet 11 with weaker magnetic field is used in other parts. This can achieve better impurity capture effect without increasing production costs too much.

[0046] The chip discharge port 109 is a 120-degree guide plate made of stainless steel. Mudguards 19 are installed on both sides of the chip discharge plate 109, extending to both ends of the magnetic drum parallel to the sealing end plate 7, with a distance of one millimeter between them. A brass scraper 20 is fixed above the chip discharge plate 18, tangent to the outer cylinder 5 of the magnetic drum. Ferromagnetic impurities adhering to the outer cylinder 5 of the magnetic drum are scraped into the slag discharge port by the brass scraper 20. The mudguards 19 effectively prevent ferromagnetic impurities from accumulating on the surface of the chip discharge plate 18 and falling back into the return housing 1.

[0047] Furthermore, the sealing end plate 7 is concentric with the outer cylinder 5 of the magnetic drum. The sealing end plate 7 is made of PP material. The outer cylinder 5 of the magnetic drum has mounting holes and is connected to the sealing end plate 7 by a pin. The sealing end plate 7 has a groove, and a sealing ring is installed in the groove to seal with the outer cylinder 5 of the magnetic drum. The sealing end plate 7 and the outer cylinder 5 of the magnetic drum form a good sealing effect through the sealing ring in the groove, preventing liquid from seeping in due to prolonged immersion and reducing the life of the magnetic drum, and also facilitating installation.

[0048] In this embodiment, a miniature high-strength magnetic separator is used such that waste liquid containing ferromagnetic impurities enters the housing 1 through the inlet 107. The flow rate of the waste liquid is reduced by the baffle 106, and it slowly flows through the guide plate 105 onto the bottom arc plate 104. The magnetic hub outer cylinder 5 rotates under the drive of the drive motor 4. The ferromagnetic impurities in the waste liquid are adsorbed onto the side wall of the magnetic outer cylinder. These adsorbed impurities are then transported to the gap between the rubber roller 13 and the magnetic hub outer cylinder 5 as the magnetic hub outer cylinder 5 rotates. Under the action of the rubber roller 13, the water adsorbed on the ferromagnetic impurities on the outer cylinder 5 of the magnetic hub is squeezed out. When the ferromagnetic impurities on the outer cylinder 5 of the magnetic hub reach the brass scraper 20, since there is no magnet at the corresponding position of the brass scraper 20, the brass scraper 20 can easily scrape off the ferromagnetic impurities on the outer cylinder of the magnetic hub, causing them to fall onto the chip removal plate 18. Guided by the chip removal plate 18, they fall into the trash can, which is convenient for the staff to carry out unified centralized treatment. The liquid after the ferromagnetic impurities are separated is transported to the machine tool through the liquid outlet 108 for repeated use.

[0049] In summary, the miniature super-strong magnetic separator in this embodiment avoids the problem of incomplete impurity removal caused by the use of neodymium magnets, avoids the slippage of rubber rollers caused by iron slag metabolism due to uneven magnetism, has a higher slag discharge rate, produces drier slag, reduces the workload of the motor, improves the service life of the magnetic separator, and reduces equipment maintenance costs.

[0050] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, as defined by the claims and their equivalents.

Claims

1. A miniature, ultra-strong magnetic separator, characterized in that, The device includes a housing; a motor mounting plate is welded to the outer side panel of the housing; roller mounting seats are welded to both sides of the housing; a magnetic hub mounting seat is welded to the inside of the housing; a bottom arc plate, a guide plate, and a water baffle are welded to the inside of the housing; a cover plate is fixed to the top of the housing; a protective cover is fixed to the top of the housing; a liquid inlet is provided at the rear of the bottom plate of the housing; a chip discharge port is provided on the side wall of the housing opposite to the liquid inlet; a liquid outlet is provided on the left side panel of the housing; a magnetic separation mechanism and a chip removal mechanism are provided between the liquid inlet and the chip discharge port. The magnetic separation mechanism includes a drive motor and a magnetic hub; the drive motor is mounted on a motor mounting plate, and the drive motor is connected to the magnetic hub gear via a sprocket drive; the magnetic hub includes an outer magnetic hub cylinder, an inner magnetic hub cylinder, a sealing end plate, a magnetic hub bearing, a magnetic hub gear, a magnetic hub main shaft, a bar magnet, and a non-circular magnet; the outer magnetic hub cylinder is a hollow cylindrical structure with open ends, and both open ends of the outer magnetic hub cylinder are connected to sealing end plates; magnetic hub gears are provided on both sides of the sealing end plates; magnetic hub bearings are embedded inside the sealing end plates; the magnetic hub main shaft passes through the magnetic hub bearings and is fixed to magnetic hub mounting seats on both sides of the housing. The inner cylinder of the magnetic hub includes a reinforcing plate, an L-shaped plate, a U-shaped plate, and an arc-shaped plate. Two circular reinforcing plates are welded to the main shaft of the magnetic hub. The L-shaped plate is welded to the upper plane of the two reinforcing plates. Two U-shaped plates are embedded in the grooves of the two reinforcing plates. Three arc-shaped plates, with the same length as the L-shaped and U-shaped plates, are welded to the upper outer circles of the two reinforcing plates, tangent to the L-shaped and U-shaped plates respectively. The irregularly shaped magnets and long bar magnets inside the inner cylinder are neodymium magnets, with a distance of two millimeters between them and the outer cylinder. The outer cylinder is concentric with the bottom arc plate, and the distance between the outer cylinder and the bottom arc plate is three millimeters. The chip removal mechanism includes a rubber roller assembly and a chip removal component; the rubber roller assembly includes a rubber roller, a rubber roller shaft, a rubber roller bearing, a rubber roller sprocket, and a rubber roller shaft fixing mechanism; a rubber roller sprocket is inserted through the right side of the rubber roller shaft; the rubber roller shaft fixing mechanism consists of a bearing seat, a peg handle, a telescopic spring, and a plug shaft; the plug shaft is inserted through the bearing seat; the telescopic spring is sleeved inside the plug shaft and located above the bearing seat; a peg handle is screwed onto the top of the plug shaft; the rubber roller shaft fixing mechanism is fixed to rubber roller fixing seats on both sides of the housing; the rubber roller shaft is inserted through the bearing seats on both sides, and the rubber roller is tightly tangential to the outer cylinder of the magnetic drum by the telescopic spring; the magnetic hub gear cooperates with the rubber roller sprocket, and the magnetic hub gear drives the operation of the rubber roller assembly; the chip removal component includes a chip removal plate, a mudguard plate, and a brass scraper; a chip removal plate is installed above the chip removal port, and mudguard plates are installed on both sides; a brass scraper is installed above the chip removal plate.

2. The miniature ultra-strong magnetic separator as described in claim 1, characterized in that, A baffle plate is welded to the rear of the housing and located at the liquid inlet; the bottom arc plate and the guide plate are connected to each other; the guide plate is a 140° V-shaped plate; the bottom arc plate is semi-circular and concentric with the magnetic hub; the bottom arc plate has a water inlet guide port on the side opposite to the liquid inlet; the bottom arc plate has a water outlet guide port on the side opposite to the chip discharge port.

3. A miniature, high-strength magnetic separator as described in claim 1, characterized in that, The inner cylinder of the magnetic hub and the main shaft of the magnetic hub are integral; the outer cylinder of the magnetic hub is concentric with the main shaft of the magnetic hub; the main shaft of the magnetic hub has slots at both ends, which are respectively fixed above the magnetic hub mounting base.

4. A miniature, high-strength magnetic separator as described in claim 1, characterized in that, The sealing end plate is concentric with the outer cylinder of the magnetic drum; the sealing end plate is made of PP material; the outer cylinder of the magnetic drum is provided with mounting holes and is connected to the sealing end plate by a pin; the sealing end plate is provided with a groove, and a sealing ring is provided in the groove to seal and install with the outer cylinder of the magnetic drum.

5. A miniature, high-strength magnetic separator as described in claim 1, characterized in that, The irregularly shaped magnet and the long bar magnet are two neodymium magnets with different magnetic properties, wherein the irregularly shaped magnet has a stronger magnetic property than the long bar magnet; the irregularly shaped magnet is located above the U-shaped plate; the long bar magnet is located above the L-shaped plate and the arc plate.

6. A miniature, high-strength magnetic separator as described in claim 1, characterized in that, The chip discharge port is a 120-degree guide plate; the chip discharge plate is made of stainless steel; the mudguards are installed on both sides of the chip discharge plate; the mudguards extend to both ends of the magnetic hub parallel to the sealing end plate, and the distance between them and the sealing end plate is one millimeter; the brass scraper is fixed above the chip discharge plate and is tangent to the outer cylinder of the magnetic hub.

Images