Magnetic presser

Abstract

The utility model provides a magnetic presser, relates to a magnetic presser technology, and particularly discloses a rack, a magnetic suction cylinder and a driving mechanism, and the magnetic suction cylinder is rotatably connected in the rack and is in transmission connection with the driving mechanism; the driving mechanism is used for driving the magnetic suction barrel to rotate, the pressing roller module comprises a pressing roller and a transmission mechanism, the pressing roller is movably arranged on one side of the magnetic suction barrel, the distance between the pressing roller and the magnetic suction barrel is constant, and the pressing roller is located above the rotation center of the magnetic suction barrel; the compression roller is in transmission connection with a shaft rod of the magnetic suction cylinder through the transmission mechanism, the linear speed of the magnetic suction cylinder is larger than or equal to the speed of the transmission mechanism, the transmission mechanism drives the compression roller to rotate during jamming, material shearing, stacking or slipping is avoided, the constant distance design of the compression roller guarantees stable squeezing pressure, the compression roller is prevented from deforming, and the jamming risk is reduced. A ratchet wheel structure realizes power one-way protection, and a power path is switched to forcibly drive the compression roller during overload, so that the equipment is prevented from being stuck.

Description

Technical Field

[0001] This utility model relates to the field of magnetic press technology, and more specifically, to a magnetic press. Background Technology

[0002] Magnetic presses are mainly used in steel metallurgy processes to recover iron slag from turbid circulating water, while reducing SS and TP in wastewater. The treated wastewater is then cooled by a pipe cooling tower and recycled.

[0003] Early magnetic presses used a transmission gear connection between the water-absorbing pressure roller and the rotating magnetic roller. During operation, because both transmitted force independently, uneven force occurred when slag accumulated on the surface of the magnetic roller, easily causing deformation and a "twisted" appearance. Existing double-stage pressure rollers, in actual use, suffer from uneven material distribution when large amounts of sludge are fed in. The pressure rollers are already under gravity, and insufficient friction between the pressure roller and the magnetic roller, coupled with large pieces of sludge obstructing the flow, can cause the rollers to stop rotating. Furthermore, the springs on both sides of the pressure rollers make leveling difficult after maintenance or replacement. Without leveling, the rollers' rotation is restricted, and the difference in speed between the two sides can easily lead to deformation over time. Additionally, the complexity of pressure roller replacement necessitates a large, cumbersome cover, hindering maintenance. Utility Model Content

[0004] The purpose of this invention is to provide a magnetic press that addresses the shortcomings of existing technologies and solves the problems mentioned in the background section.

[0005] The technical solution of this utility model is implemented as follows:

[0006] This utility model provides a magnetic press, including a frame, a magnetic cylinder, and a drive mechanism. The magnetic cylinder is rotatably connected to the frame and is driven by the drive mechanism. The drive mechanism is used to drive the magnetic cylinder to rotate and also includes a pressure roller module adapted to the magnetic cylinder. The pressure roller module includes a pressure roller and a transmission mechanism. The pressure roller is movably disposed on one side of the magnetic cylinder, so that the distance between the pressure roller and the magnetic cylinder is constant. The pressure roller is located above the rotation center of the magnetic cylinder and is driven by the shaft of the magnetic cylinder through the transmission mechanism.

[0007] In some technical solutions of this utility model, the pressure roller includes two fixed bearings arranged in pairs, and each fixed bearing is equipped with a drive shaft coaxial with the pressure roller. The drive shaft is detachably connected to the pressure roller.

[0008] In some technical solutions of this utility model, the transmission mechanism includes a first transmission wheel mounted on the shaft of the magnetic chuck, a second transmission wheel mounted inside the frame, a first transmission belt mounted between the second transmission wheel and the first transmission wheel, a third transmission wheel mounted on the transmission shaft, and a second transmission belt mounted between the third transmission wheel and the second transmission wheel.

[0009] In some technical solutions of this utility model, a ratchet structure is installed between the first transmission wheel and the shaft of the magnetic suction cylinder.

[0010] In some technical solutions of this utility model, a bushing is detachably provided on the drive shaft, a notch is provided on the side of the drive shaft opposite to the pressure roller, the rotating shaft of the pressure roller is partially embedded in the notch, and the bushing is threadedly connected to the rotating shaft of the pressure roller.

[0011] In some technical solutions of this utility model, a slag-blocking ring is installed on the transmission shaft located between the third transmission wheel and the pressure roller.

[0012] In some technical solutions of this utility model, a slag pressing plate is also included. The slag pressing plate is installed inside the frame, and a gap is left between the side wall of the slag pressing plate and the outer side wall of the magnetic suction cylinder.

[0013] In some technical solutions of this utility model, a slag discharge channel is installed on one side of the frame, a fixed frame is provided in the slag discharge channel, a slag scraper is provided on the side wall of the fixed frame, one side of the slag scraper abuts against the outer side wall of the magnetic suction cylinder, and a slag discharge trough communicating with the slag discharge channel is provided in the frame.

[0014] Compared with the prior art, this utility model has at least the following advantages or beneficial effects: the transmission mechanism ensures that the linear speed of the pressure roller and the magnetic suction cylinder is consistent, avoiding material shearing, accumulation or slippage; the constant distance design of the pressure roller ensures stable pressing pressure and prevents pressure roller deformation; combined with the pre-flattening function of the slag pressing plate, it reduces the risk of jamming; the multi-stage transmission wheel / belt redundancy design improves reliability; the ratchet structure realizes unidirectional power protection; in case of overload, the power path is switched to force the pressure roller to drive, avoiding equipment jamming; when the pressure roller rotates autonomously by the friction force applied by the magnetic suction cylinder, it prevents uneven force; in case of jamming, the forced drive mode is triggered to pass through the foreign object section, improving the fault tolerance of the equipment; the detachable transmission shaft and coaxial design realize modular maintenance, and the pressure roller can be replaced by simply removing the bushing, avoiding repeated disassembly and assembly of the bearing. Attached Figure Description

[0015] Figure 1 This is a front view structural diagram of the present invention.

[0016] Figure 2 This is a top view of the structure of this utility model.

[0017] Figure 3 This is a schematic diagram of the internal structure of this utility model.

[0018] Figure 4 This is a top view of the adjustment plate in this utility model.

[0019] Figure 5 This is a side view of the adjustment plate in this utility model.

[0020] Figure 6 This is a schematic diagram of the installation structure of the slag-pressing plate in this utility model.

[0021] Figure 7 This is a partially enlarged structural diagram of the slag scraper and magnetic suction cylinder in this utility model.

[0022] Figure 8 This is a schematic diagram of the combination of the pressure roller and the drive shaft in this utility model.

[0023] Figure 9 This is a schematic diagram of the combination of the pressure roller, drive shaft and bushing in this utility model.

[0024] Figure label:

[0025] 1. Drive motor; 2. Reducer; 3. Frame; 4. Magnetic suction cylinder; 5. Pressure roller; 6. Adjusting plate; 7. Slag scraper; 8. First drive wheel; 9. First drive belt; 10. Second drive wheel; 11. Second drive belt; 12. Third drive wheel; 13. Drive shaft; 14. Slag discharge chute; 15. Slag pressing plate; 16. Notch; 17. Slag retaining ring; 18. Bushing; 19. Fixed bearing. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without inventive effort are within the scope of protection of this invention.

[0028] Example

[0029] This utility model provides a magnetic press, such as Figures 1-9As shown, the device includes a frame 3, a magnetic chuck 4, and a drive mechanism. The magnetic chuck 4 is rotatably connected within the frame 3 and is driven by the drive mechanism. The drive mechanism drives the magnetic chuck 4 to rotate and also includes a pressure roller 5 module adapted to the magnetic chuck 4. The pressure roller 5 module includes a pressure roller 5 and a transmission mechanism. The pressure roller 5 is movably positioned on one side of the magnetic chuck 4, ensuring a constant distance between the pressure roller 5 and the magnetic chuck 4. The pressure roller 5 is located above the rotation center of the magnetic chuck 4 and is driven by the transmission mechanism to the shaft of the magnetic chuck 4. The magnetic chuck 4 rotates under the drive mechanism, and the pressure roller 5 is linked to the shaft of the magnetic chuck 4 through the transmission mechanism, ensuring that the pressure roller 5 remains above the rotation center of the magnetic chuck 4 and maintains a constant distance. After the material enters the surface of the magnetic suction cylinder 4, the pressure roller 5 applies pressure to it. The magnetic force of the magnetic suction cylinder 4 attracts the magnetic components in the material. The synchronously rotating pressure roller 5 and the magnetic suction cylinder 4 work together to complete the pressing and separation. The synchronous rotation of the pressure roller 5 and the magnetic suction cylinder 4 is achieved through a transmission mechanism, ensuring that the linear speeds of the two are consistent and avoiding material accumulation or slippage. The constant distance design of the pressure roller 5 ensures stable pressing pressure and avoids uneven force on the pressure roller 5, which could lead to deformation. Combined with the magnetic attraction of the magnetic suction cylinder 4, efficient solid-liquid separation of magnetic materials is achieved. The pressing pressure is uniform and controllable. The synergistic effect of magnetic attraction and mechanical pressing improves the separation efficiency. The transmission mechanism simplifies the power configuration, reduces energy consumption, and allows the pressure roller 5 to be driven to rotate by the transmission mechanism when large pieces of waste residue appear on the magnetic suction cylinder 4, allowing the waste residue to pass through and preventing the pressure roller 5 from getting stuck during equipment operation.

[0030] In some technical solutions of this utility model, the pressure roller 5 includes two fixed bearings 19 arranged in pairs. Each fixed bearing 19 houses a drive shaft 13 coaxial with the pressure roller 5, and the drive shaft is detachably connected to the pressure roller 5. The two ends of the pressure roller 5 are supported by the paired fixed bearings 19. The drive shaft 13 is coaxial with and detachable from the pressure roller 5. When the pressure roller 5 wears, only the drive shaft 13 needs to be removed to replace the pressure roller 5; there is no need to disassemble the entire bearing. The detachable drive shaft 13 design enables modular maintenance, avoids repeated disassembly and reassembly of the bearing when replacing the pressure roller 5, and the coaxial structure reduces transmission eccentricity, extends equipment life, and ensures transmission accuracy.

[0031] In some technical solutions of this utility model, the transmission mechanism includes a first transmission wheel 8 mounted on the shaft of the magnetic chuck 4, a second transmission wheel 10 mounted inside the frame 3, a first transmission belt 9 installed between the second transmission wheel 10 and the first transmission wheel 8, a third transmission wheel 12 mounted on the transmission shaft 13, and a second transmission belt 11 installed between the third transmission wheel 12 and the second transmission wheel 10. During normal operation of the equipment, the movement of the pressure roller 5, the transmission mechanism, and the magnetic chuck 4 is as follows: the pressure roller 5 is driven to rotate mainly by the frictional force generated by its contact with the outer wall of the magnetic chuck 4; when the amount of wastewater entering the slag is too large, or when large pieces of iron slag appear, the pressure roller 5 may become stuck and stop rotating. The speed ratio of the magnetic cylinder 4 and the pressure roller 5 is matched by a multi-stage transmission wheel and transmission belt installed between them, ensuring that the surface linear velocity of the two is consistent and avoiding material shearing or accumulation. The first transmission wheel 8 of the shaft of the magnetic cylinder 4 drives the second transmission wheel 10 through the first transmission belt. The second transmission wheel 10 drives the third transmission wheel 12 on the transmission shaft 13 through the second transmission belt, which ultimately drives the pressure roller 5 and the magnetic cylinder 4 to rotate synchronously. The redundant design of the transmission path improves reliability; the speed ratio is adjustable to adapt to different material handling needs.

[0032] In some technical solutions of this utility model, a ratchet structure is installed between the first transmission wheel 8 and the shaft of the magnetic suction cylinder 4. Due to the gear ratio requirements of the transmission chain assembly, when the pressure roller 5 and the magnetic chuck 4 rotate through friction during equipment operation, the rotational speed of the pressure roller 5 must be faster than the speed transmitted from the magnetic chuck 4 to the pressure roller 5 through the transmission mechanism. Therefore, during normal operation, the pressure roller 5 will be driven to rotate by the magnetic chuck 4 due to frictional force. The first transmission wheel 8 on the magnetic chuck 4 will be idle on the shaft of the magnetic chuck 4 under the action of the ratchet structure. When the pressure roller 5 is jammed by a large piece of iron slag, the rotational speed decreases, and the first transmission wheel 8 is matched with the shaft of the magnetic chuck 4 under the linkage of the ratchet structure. Subsequently, the power output by the first transmission wheel 8 will be transmitted to the third gear through the first transmission belt 9 and the second transmission belt 11, driving the pressure roller 5 to rotate forcibly. After the jam is cleared, the first transmission wheel 8 on the magnetic chuck 4 will be idle on the shaft of the magnetic chuck 4 under the action of the ratchet structure, and the magnetic chuck 4 will drive the pressure roller 5 to rotate again through frictional force.

[0033] The ratchet mechanism utilizes its one-way locking characteristic to achieve one-way protection of power transmission. In case of overload, it cuts off the power connection between the magnetic chuck 4 and the transmission mechanism. The ratchet structure is installed between the first gear and the shaft of the magnetic chuck 4. When the pressure roller 5 briefly stops due to the resistance of the material on the magnetic chuck 4, the ratchet allows the first gear and the shaft of the magnetic chuck 4 to be connected at this moment. Subsequently, the power output from the first transmission wheel 8 will be transmitted to the third gear through the first transmission belt 9 and the second transmission belt 11, driving the pressure roller 5 to rotate forcibly, preventing the equipment from jamming or the transmission components from being damaged. It also improves the impact resistance of the pressure roller 5. When the pressure roller 5 rotates again by the friction of the magnetic chuck 4, it prevents the pressure roller 5 from deforming due to uneven force. Furthermore, when the pressure roller 5 is jammed, the magnetic chuck 4 drives the pressure roller 5 to rotate through the jamming section, preventing the pressure roller 5 from jamming.

[0034] The ratchet structure adopts the bicycle ratchet structure, which can ensure that when the first gear and the shaft of the magnetic cylinder 4 are running, under certain conditions, the shaft of the magnetic cylinder 4 rotates, and the first gear does not rotate relative to the magnetic cylinder 4.

[0035] In some technical solutions of this utility model, a bushing 18 is detachably provided on the drive shaft 13. A notch 16 is provided on the side of the drive shaft 13 opposite to the pressure roller 5. The rotating shaft of the pressure roller 5 is partially embedded in the notch 16, and the bushing 18 is threadedly connected to the rotating shaft of the pressure roller 5. The notch 16 is a through groove in the middle of the drive shaft 13. After the notch 16 and the rotating shaft of the pressure roller 5 are engaged, they form a radial positioning. The internally threaded bushing 18 achieves axial locking between the drive shaft 13 and the rotating shaft of the pressure roller 5. The detachable design simplifies the assembly process. When disassembling, the pressure roller 5 and the drive shaft 13 can be separated by loosening the bushing 18. The threaded connection formed by the notch 16, the bushing 18, the drive shaft 13, and the rotating shaft of the pressure roller 5 forms a double fixation, ensuring connection stability.

[0036] In some technical solutions of this utility model, a slag-blocking ring 17 is installed on the transmission shaft 13 located between the third transmission wheel 12 and the pressure roller 5. The slag-blocking ring 17 prevents centrifugal force from throwing the slag material to the outer edge of the slag-blocking ring 17, and discharges it into the slag collection area through the guide groove, avoiding contamination of transmission components, reducing wear of the transmission system, extending the lubrication cycle, and reducing failures.

[0037] In some technical solutions of this utility model, a slag pressing plate 15 is also included. The slag pressing plate 15 is installed inside the frame 3, and the side wall of the slag pressing plate 15 abuts against the outer side wall of the magnetic suction cylinder 4. The waste residue is flattened by the slag pressing plate 15, and a small gap is left when the pressing plate presses against the magnetic roller. The flattened waste residue further passes through the pressure roller 5 to avoid jamming of the pressure roller 5.

[0038] In some technical solutions of this utility model, a slag discharge channel is installed on one side of the frame 3, and a fixed frame is provided inside the slag discharge channel. A scraper 7 is provided on the side wall of the fixed frame, and one side of the scraper 7 abuts against the outer side wall of the magnetic suction cylinder 4. A slag discharge trough 14 communicating with the slag discharge channel is provided inside the frame 3. The slag on the surface of the magnetic suction cylinder 4 is scraped into the slag discharge channel by the scraper 7 and discharged through the slag discharge trough 14. The fixed frame supports the scraper 7 to maintain a constant contact pressure. The scraper 7 is made of wear-resistant composite material, and the inclined slag discharge channel uses gravity to achieve automatic material discharge.

[0039] The working process of the magnetic press: Wastewater enters the water supply equipment through the inlet. The drive motor 1 rotates the magnetic suction cylinder 4 through the reducer 2. Iron filings and iron-containing clumps (hereinafter collectively referred to as waste residue) in the wastewater are adsorbed by the pressure roller 5. The filtered wastewater is discharged through the outlet. When the wastewater flow is too large, it overflows through the overflow plate and is discharged through the overflow pipe. When the bottom of the magnetic roller is blocked by residue, high-pressure clean water is connected through the backwash port, the valve on the outlet side is closed, and backwashing is performed. The residue is discharged in the opposite direction through the overflow pipe.

[0040] The waste residue adsorbed on the magnetic roller is rotated and first passes through the adjustable distribution plate. The debris is combed into uniform strips by the notches 16 of the adjustment plate 6. According to different sewage flow rates and residue contents, the adjustment plate 6 of different sizes can be replaced and fixed by adjusting bolts to ensure that the material is spread evenly. The waste residue is flattened by the slag pressing plate 15 to prevent the waste residue from getting stuck when passing through the pressure roller 5. Finally, the processed waste residue is scraped off from the magnetic suction cylinder 4 by the slag scraper 7 and discharged from the slag discharge trough 14 to the collection port.

[0041] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A magnetic press, comprising a frame (3), a magnetic cylinder (4), and a drive mechanism, wherein the magnetic cylinder (4) is rotatably connected within the frame (3) and is drive-connected to the drive mechanism; the drive mechanism is used to drive the magnetic cylinder (4) to rotate, characterized in that, It also includes a pressure roller (5) module adapted to the magnetic chuck (4). The pressure roller (5) module includes a pressure roller (5) and a transmission mechanism. The pressure roller (5) is movably disposed on one side of the magnetic chuck (4) so ​​that the distance between the pressure roller (5) and the magnetic chuck (4) is constant. The pressure roller (5) is located above the rotation center of the magnetic chuck (4). The pressure roller (5) is connected to the shaft of the magnetic chuck (4) through the transmission mechanism.

2. The magnetic press according to claim 1, characterized in that, The pressure roller (5) includes two fixed bearings (19) arranged in pairs. Each fixed bearing (19) is equipped with a drive shaft (13) coaxial with the pressure roller (5). The drive shaft is detachably connected to the pressure roller (5).

3. A magnetic press according to claim 2, characterized in that, The transmission mechanism includes a first transmission wheel (8) mounted on the shaft of the magnetic chuck (4), a second transmission wheel (10) mounted inside the frame (3), a first transmission belt (9) mounted between the second transmission wheel (10) and the first transmission wheel (8), a third transmission wheel (12) mounted on the transmission shaft (13), and a second transmission belt (11) mounted between the third transmission wheel (12) and the second transmission wheel (10).

4. A magnetic press according to claim 3, characterized in that, A ratchet structure is installed between the first transmission wheel (8) and the shaft of the magnetic suction cylinder (4).

5. A magnetic press according to claim 2, characterized in that, A bushing (18) is detachably provided on the drive shaft (13). A notch (16) is provided on the side of the drive shaft (13) opposite to the pressure roller (5). The rotating shaft of the pressure roller (5) is partially embedded in the notch (16). The bushing (18) is threadedly connected to the rotating shaft of the pressure roller (5).

6. A magnetic press according to claim 3, characterized in that, A slag-blocking ring (17) is installed on the drive shaft (13) located between the third drive wheel (12) and the pressure roller (5).

7. A magnetic press according to claim 1, characterized in that, It also includes a slag pressing plate (15), which is installed inside the frame (3), and there is a gap between the side wall of the slag pressing plate (15) and the outer side wall of the magnetic suction cylinder (4).

8. A magnetic press according to claim 1, characterized in that, A slag discharge channel is installed on one side of the frame (3), a fixed frame is provided in the slag discharge channel, a slag scraper (7) is provided on the side wall of the fixed frame, one side of the slag scraper (7) abuts against the outer side wall of the magnetic suction cylinder (4), and a slag discharge trough (14) communicating with the slag discharge channel is provided in the frame (3).

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