Adjustable magnetic roll for magnetic separator

Abstract

The utility model relates to sewage treatment technical field, concretely relates to an adjustable magnetic roller of magnetic separation machine, include: the outer wall fixedly connected with magnet of mounting bracket, the outer surface rotationally connected with outer tube of mounting bracket, the outer wall of one end of mounting bracket and outer tube is opened and has inserted hole, the outer wall fixedly connected with connecting column of one end of mounting bracket and outer tube away from inserted hole, the inserted hole is along its surface and is in circular array distribution, the outer wall of connecting column is connected with the bolt disc of joint, the inner wall of inserted hole is connected with the limit disc of joint, the outer wall rotationally connected with support frame of bolt disc and limit disc, the outer wall fixedly connected with transmission gear of limit disc. Through the clearance cooperation and circular array design of mounting bracket, outer tube end inserted hole and connecting column, can splice and adjust the magnetic roller length, can adapt to the material conveying line of different width, need not to replace whole magnetic roller for different working conditions, be favorable to reducing equipment purchase and replacement cost.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to an adjustable magnetic roller for a magnetic separator. Background Technology

[0002] Existing magnetic separators have limitations. Most of them are integrated fixed-length structures, which cannot be flexibly adjusted according to material conveying lines of different widths, resulting in poor adaptability. At the same time, maintenance requires replacing the entire magnetic roller, which wastes production resources.

[0003] Therefore, the adjustable magnetic roller of the magnetic separator of this utility model can be spliced ​​and adjusted in length by means of the gap fit between the mounting frame and the insertion hole of the outer cylinder and the connecting column; the gap fit also simplifies disassembly and maintenance without special tools, which is conducive to flexible adjustment according to material conveying lines of different widths, and meets the needs of the sewage treatment industry for adjustable length of magnetic roller of magnetic separator. Utility Model Content

[0004] To address the shortcomings of existing technologies, the technical solution adopted by this utility model is as follows: an adjustable magnetic separator magnetic roller, comprising: a mounting frame, a magnet fixedly connected to the outer wall of the mounting frame, an outer cylinder rotatably connected to the outer surface of the mounting frame, an insertion hole formed on one end of the outer wall of the mounting frame and the outer cylinder, a connecting column fixedly connected to the outer wall of the mounting frame and the outer cylinder away from the insertion hole, the insertion holes being arranged in a circumferential array along their surface, a pin plate engaging with the outer wall of the connecting column, a limiting plate engaging with the inner wall of the insertion hole, a support frame rotatably connected to the outer walls of the pin plate and the limiting plate, and a transmission gear fixedly connected to the outer wall of the limiting plate. During use, a fixed shaft is fixedly connected inside the mounting frame via a spline, and both ends of the fixed shaft are directly connected to external mechanical components. The frame is fixed, a design that ensures the magnets fixed to the mounting frame and outer wall remain stationary throughout the process, which helps to avoid the magnetic field position shift affecting the separation accuracy. The outer cylinder is rotatably connected to the outside of the mounting frame. The outer cylinder completely encloses the magnets to prevent them from directly contacting the materials and causing wear, while also ensuring that the outer cylinder can rotate flexibly around the mounting frame without movement interference. In addition, the pin plate engages with the connecting post at the end of the outer cylinder through its own insertion hole, and the limiting plate engages with the insertion hole at the end of the outer cylinder through its own fixed connecting post. Both of them achieve axial limiting of the mounting frame and the outer cylinder from both ends of the magnetic roller. The support frame is further rotatably connected to the pin plate and the limiting plate, providing stable support for the overall structure while not hindering the circumferential movement of the outer cylinder, ensuring that the components do not interfere with each other and work together in a coordinated manner.

[0005] Preferably, the outer walls of the pin plate and the limiting plate are respectively provided with insertion holes and connecting posts corresponding to the connecting posts and insertion holes on the outer wall of the outer cylinder. The insertion holes of the mounting bracket and the end of the outer cylinder are evenly distributed in a circumferential array, and the number of insertion holes and connecting posts are exactly the same, and their axes are collinear. When the length of the magnetic roller needs to be adjusted as required, this design provides a basis for docking different sections of the mounting bracket with the outer cylinder, which helps to ensure the coaxiality and stability of the overall structure after splicing. At the same time, the insertion holes and connecting posts adopt a clearance fit, and there is no radial forced pressure on the mating surface, which helps to avoid long-term use. To address the issue of metal adhesion after use and to facilitate assembly and disassembly, during actual adjustments, if it is necessary to extend the length of the magnetic roller to accommodate a wider material conveying line, a matching mounting bracket and outer cylinder can be added directly. The connecting post of the new mounting bracket is inserted into the insertion hole of the original mounting bracket, and the connecting post of the new outer cylinder is simultaneously inserted into the insertion hole of the original outer cylinder. The fixed shaft inside the new mounting bracket can be coaxially connected to the original fixed shaft through a coupling, without altering the original fixing relationship between the fixed shaft and the external frame. If it is necessary to shorten the length, the excess mounting bracket and outer cylinder section can be removed in reverse.

[0006] Preferably, the mounting frame and the insertion holes and connecting posts on the outer cylinder are engaged, thereby adjusting the length of the magnetic roller. The core logic of power transmission and magnetic separation revolves around the cooperative relationship between the rotation of the outer cylinder and the fixation of the magnetic field, realizing the separation of magnetic and non-magnetic materials. An external motor serves as the power source, connected to the outer cylinder via gear meshing and transmission gears. The torque output by the motor is directly transmitted to the outer cylinder through the transmission gears, driving the outer cylinder to rotate uniformly around the fixed mounting frame. Its rotation speed can be flexibly adjusted through the motor control system according to actual working conditions such as material conveying speed and magnetic particle content. When the material to be separated is conveyed to the magnetic roller via a conveyor belt or scraper... When the roller is in the working area, the stationary magnets on the mounting frame form a stable fixed magnetic field. This magnetic field can act on the material through the rotating outer cylinder. Magnetic particles in the material are firmly attracted to the surface of the outer cylinder under the action of the magnetic field force. As the outer cylinder rotates, they gradually detach from the original material flow and are conveyed to the end of the magnetic roller or the non-magnetic zone where the magnetic field strength weakens. After reaching the non-magnetic zone, the magnetic particles lose the magnetic field binding and fall off the surface of the outer cylinder under their own gravity or with the assistance of the discharge scraper. They fall into a special collection device to complete the recovery of magnetic materials. Non-magnetic particles in the material, because they are not attracted by the magnetic field, continue to move forward with the conveying mechanism, ultimately achieving the separation of the two materials.

[0007] Preferably, the number of insertion holes and connecting posts are the same and they are in the same axial direction, with a clearance fit during connection, facilitating disassembly. The modular structure and clearance fit design advantages significantly reduce maintenance costs and downtime during disassembly and maintenance. When the outer cylinder shows surface wear or deformation, or the magnet needs replacement due to magnetic attenuation from long-term use, maintenance personnel do not need to disassemble the connection between the fixed shaft and the external frame. They only need to first remove the connecting parts between the support frame and the pin plate and limit plate, and then, utilizing the clearance fit characteristic of the insertion hole and connecting post, directly separate the snap-fit ​​structure between the pin plate and connecting post, and between the limit plate and insertion hole. Since there is no forced interference on the mating surfaces, the entire disassembly process does not require special operations such as hammering or heating, nor does it require special tools. Subsequently, the outer cylinder can be directly pulled out from the outside of the mounting frame for inspection or replacement. If the magnet needs maintenance, the internal snap-fit ​​between the mounting frame and the fixed shaft can be loosened to remove the mounting frame for operation. If the fixed shaft malfunctions, it can be removed for maintenance by simply loosening its snap-fit ​​with the mounting frame or its connection to the external frame, without affecting the assembly status of other components. After maintenance, the components are reassembled in reverse order to quickly restore the magnetic roller to its working state and ensure that the equipment can be put back into production as soon as possible.

[0008] The beneficial effects of this utility model are as follows:

[0009] 1. This utility model, through the setting of mounting frame, the gap fit between the insertion hole at the end of the outer cylinder and the connecting column, and the circumferential array design, allows for the splicing and adjustment of the magnetic roller length, which can adapt to material conveying lines of different widths. It eliminates the need to replace the entire set of magnetic rollers for different working conditions, which helps to reduce equipment procurement and replacement costs, while improving the adaptability of a single device to multiple scenarios.

[0010] 2. This utility model connects to the outside world by setting a fixed shaft, and the frame keeps the magnet stationary with the mounting frame, avoiding the magnetic field from shifting due to rotation, ensuring the stability of the magnetic field, and facilitating the separation of magnetic materials; in addition, the clearance fit design allows the components to be disassembled without special tools, and the outer cylinder can be quickly disassembled and the magnet replaced during maintenance, shortening downtime. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the back structure of this utility model;

[0013] Figure 3 This is a schematic diagram of the internal structure of this utility model;

[0014] Figure 4 This is a schematic diagram of the insertion hole of this utility model;

[0015] Figure 5 This is a schematic diagram of the structure of the pin plate of this utility model;

[0016] Figure 6 This is a schematic diagram of the structure of the limiting plate of this utility model.

[0017] In the diagram: 1. Mounting bracket; 2. Magnet; 3. Insertion hole; 4. Outer cylinder; 5. Connecting column; 6. Pin plate; 7. Support frame; 8. Limiting plate; 9. Transmission gear. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical applications of the present invention, and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose.

[0019] Example:

[0020] Please see Figure 1 - Figure 6 This utility model provides a technical solution: an adjustable magnetic separator magnetic roller, comprising: a mounting frame 1, a magnet 2 fixedly connected to the outer wall of the mounting frame 1, an outer cylinder 4 rotatably connected to the outer surface of the mounting frame 1, an insertion hole 3 opened on one end of the outer wall of the mounting frame 1 and the outer cylinder 4, a connecting post 5 fixedly connected to the outer wall of the mounting frame 1 and the outer cylinder 4 away from the insertion hole 3, the insertion holes 3 being distributed in a circumferential array along their surface, a pin plate 6 being engaged with the outer wall of the connecting post 5, a limiting plate 8 being engaged with the inner wall of the insertion hole 3, a support frame 7 rotatably connected to the outer walls of the pin plate 6 and the limiting plate 8, and a transmission gear 9 fixedly connected to the outer wall of the limiting plate 8.

[0021] The outer walls of the pin plate 6 and the limiting plate 8 are respectively provided with insertion holes 3 and connecting posts 5 corresponding to the connecting posts 5 and insertion holes 3 on the outer wall of the outer cylinder 4. The insertion holes 3 and connecting posts 5 on the mounting bracket 1 and the outer cylinder 4 are engaged, thereby adjusting the length of the magnetic roller. The number of insertion holes 3 and connecting posts 5 are the same, and they are in the same axial direction. When connected, they are in a clearance fit, which is convenient for disassembly.

[0022] Working principle:

[0023] During use, the mounting frame 1 is internally fixed to a fixed shaft via a spline. The two ends of the fixed shaft are directly fixed to the frame of the external machinery. This design ensures that the mounting frame 1 and the magnet 2 fixed on the outer wall remain stationary throughout the process, which helps to avoid the magnetic field position shift affecting the separation accuracy. The outer cylinder 4 is rotatably connected to the outside of the mounting frame 1. The outer cylinder 4 completely encloses the magnet 2 to prevent it from directly contacting the material and causing wear, and also ensures that the outer cylinder 4 can rotate flexibly around the mounting frame 1 without motion interference. In addition, the pin plate 6 is engaged with the connecting post 5 at the end of the outer cylinder 4 through its own insertion hole 3, and the limiting plate 8 is engaged with the insertion hole 3 at the end of the outer cylinder 4 through its own fixed connecting post 5. The two respectively achieve axial limiting of the mounting frame 1 and the outer cylinder 4 from both ends of the magnetic roller. The support frame 7 is further rotatably connected to the pin plate 6 and the limiting plate 8, providing stable support for the overall structure while not hindering the circumferential movement of the outer cylinder 4, ensuring that the components do not interfere with each other and work together in a functional manner.

[0024] The insertion holes 3 at the ends of both the mounting bracket 1 and the outer cylinder 4 are evenly distributed in a circumferential array, and the number of insertion holes 3 and connecting posts 5 are exactly the same, with their axes collinear. This design provides a basis for docking different sections of the mounting bracket 1 and the outer cylinder 4 when the length of the magnetic roller needs to be adjusted as required, helping to ensure the coaxiality and stability of the overall structure after splicing. At the same time, the insertion holes 3 and connecting posts 5 adopt a clearance fit, with no radial forced pressure on the mating surface, which helps to avoid metal adhesion problems after long-term use and makes assembly and disassembly operations more convenient. In actual adjustment, if it is necessary to extend the length of the magnetic roller to adapt to a wider material conveying line, a matching mounting bracket 1 and outer cylinder 4 can be added directly. The connecting post 5 of the newly added mounting bracket 1 is inserted into the insertion hole 3 of the original mounting bracket 1, and the connecting post 5 of the newly added outer cylinder 4 is inserted into the insertion hole 3 of the original outer cylinder 4 at the same time. The fixed shaft inside the newly added mounting bracket 1 can be coaxially connected with the original fixed shaft through a coupling, without changing the original fixed relationship between the fixed shaft and the external frame. If it is necessary to shorten the length, the excess mounting bracket 1 and outer cylinder 4 sections can be removed in the reverse direction.

[0025] The core logic of power transmission and magnetic separation revolves around the coordinated relationship between the rotation of the outer cylinder 4 and the fixation of the magnetic field, achieving the separation of magnetic and non-magnetic materials. An external motor serves as the power source, connected to the outer cylinder 4 via a transmission gear 9. The torque output by the motor is directly transmitted to the outer cylinder 4 through the transmission gear 9, causing the outer cylinder 4 to rotate at a uniform speed around the fixed mounting frame 1. Its rotational speed can be flexibly adjusted through the motor control system according to actual working conditions such as material conveying speed and magnetic particle content. When the material to be separated is conveyed to the working area of ​​the magnetic roller via a conveyor belt or scraper, the stationary magnetic field on the mounting frame 1... Iron 2 forms a stable fixed magnetic field, which can act on the material through the rotating outer cylinder 4. Magnetic particles in the material are firmly attracted to the surface of the outer cylinder 4 under the action of the magnetic force. As the outer cylinder 4 rotates, they gradually detach from the original material flow and are conveyed to the end of the magnetic roller or the non-magnetic zone where the magnetic field strength weakens. After reaching the non-magnetic zone, the magnetic particles lose the magnetic field binding and fall off the surface of the outer cylinder 4 under their own gravity or with the assistance of the discharge scraper, falling into a special collection device to complete the recovery of magnetic materials. Meanwhile, the non-magnetic particles in the material, not being attracted by the magnetic field, continue to move forward with the conveying mechanism, ultimately achieving the separation of the two materials.

[0026] Thanks to its modular structure and clearance fit design, the disassembly and maintenance process significantly reduces maintenance costs and downtime. When the outer cylinder shows surface wear or deformation, or when the magnet needs replacement due to magnetic attenuation caused by long-term use, maintenance personnel do not need to disassemble the connection between the fixed shaft and the external frame. They only need to first remove the connecting parts between the support frame and the pin plate and limit plate, and then, utilizing the clearance fit between the insertion hole and the connecting column, directly separate the snap-fit ​​structure between the pin plate and the connecting column, and between the limit plate and the insertion hole. Since there is no forced interference on the mating surfaces, the entire disassembly process does not require special operations such as hammering or heating, nor does it require special tools. Subsequently, the outer cylinder can be directly pulled out from the outside of the mounting frame for inspection or replacement. If the magnet needs maintenance, the internal snap-fit ​​between the mounting frame and the fixed shaft can be loosened to remove the mounting frame for operation. If the fixed shaft malfunctions, it can be removed for maintenance by loosening its snap-fit ​​with the mounting frame or its connection to the external frame, without affecting the assembly status of other components. After maintenance, the components are reassembled in reverse order to quickly restore the magnetic roller to its working state, ensuring that the equipment can be put back into production as soon as possible.

[0027] Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. An adjustable magnetic separator magnetic roller, characterized in that, include: Mounting bracket (1), the outer wall of the mounting bracket (1) is fixedly connected to a magnet (2), the outer surface of the mounting bracket (1) is rotatably connected to an outer cylinder (4), one end of the outer wall of the mounting bracket (1) and the outer cylinder (4) is provided with an insertion hole (3), the outer wall of the mounting bracket (1) and the outer cylinder (4) away from the insertion hole (3) is fixedly connected to a connecting post (5), the insertion hole (3) is distributed in a circumferential array along its surface, the outer wall of the connecting post (5) is engaged with a pin plate (6), the inner wall of the insertion hole (3) is engaged with a limiting plate (8), the outer walls of the pin plate (6) and the limiting plate (8) are rotatably connected to a support frame (7), and the outer wall of the limiting plate (8) is fixedly connected to a transmission gear (9).

2. The adjustable magnetic separator roller according to claim 1, characterized in that: The outer walls of the pin plate (6) and the limiting plate (8) are respectively provided with an insertion hole (3) and a connecting post (5) corresponding to the connecting post (5) and the insertion hole (3) on the outer wall of the outer cylinder (4).

3. The adjustable magnetic separator roller according to claim 1, characterized in that: The insertion holes (3) and connecting posts (5) on the mounting bracket (1) and outer cylinder (4) are engaged to adjust the length of the magnetic roller.

4. The adjustable magnetic separator roller according to claim 1, characterized in that: The number of insertion holes (3) and connecting posts (5) are the same, and they are in the same axial direction. When connected, they are in a clearance fit, which facilitates disassembly.

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