Unpowered self-cleaning permanent magnet cylinder device

The non-powered self-cleaning permanent magnet drum device uses an impeller to drive the drum to rotate and automatically remove metal impurities, solving the electrical safety hazards and high energy consumption problems of traditional permanent magnet drums, and improving production efficiency and safety.

CN224072229UActive Publication Date: 2026-04-03BUHLER CHANGZHOU MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-21
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

Traditional permanent magnet rollers pose electrical safety hazards and high energy consumption in dusty environments, and also have high failure rates and maintenance costs.

Method used

Design a non-powered self-cleaning permanent magnet cylinder device. The cylinder is driven to rotate by an impeller, and the magnetic assembly is used to attract and automatically remove metal impurities, avoiding external power drive.

Benefits of technology

It achieves zero-electricity operation, avoids the risk of electrical equipment explosion in dusty environments, reduces energy consumption and equipment failure rate, and improves production efficiency and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an unpowered self-cleaning type permanent magnet cylinder device, which relates to a permanent magnet cylinder structure and comprises a cylinder body, a feed port arranged above the cylinder body and a discharge port arranged below the cylinder body, a rotating cylinder is arranged in the cylinder body, an impeller is arranged between the rotating cylinder and the feed port, and the impeller is arranged in the cylinder body. The impeller and a transmission shaft at one end of the rotary drum extend out of the drum body and are in transmission connection through a transmission set, the transmission shaft of the impeller is distributed on one side of the feeding port in a staggered mode, and blades on one side of the transmission shaft of the impeller are used for receiving fed materials at the feeding port so as to drive the impeller to rotate integrally. The discharging port is connected below the falling channel, the rotating drum rotates to drive the metal impurities adsorbed on one side of the rotating drum to rotate to the other side of the rotating drum to fall off, and an impurity outlet used for receiving the metal impurities falling off on the other side of the rotating drum is further formed in the lower portion of the drum body; according to the utility model, the impurity removal work of materials can be completed without external power driving, and metal impurities attached to the surface of the permanent magnet roller can be automatically removed.
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Description

Technical Field

[0001] This utility model relates to a permanent magnet cylinder structure, and more particularly to a non-powered self-cleaning permanent magnet cylinder device. Background Technology

[0002] Permanent magnet rollers are widely used in the processing of food products such as feed, rice, and flour to efficiently remove metal impurities from raw materials, ensuring food safety and product quality. Traditional permanent magnet rollers are typically driven by an electric motor with a speed reducer for speed regulation. During operation, this technology generates a strong magnetic field that causes metal impurities to adhere to the surface of the permanent magnet roller, effectively separating them as the raw materials pass through. However, traditional permanent magnet roller designs have certain limitations, especially in complex dusty environments where the use of electrical equipment poses certain safety hazards. Furthermore, the use of electric motors and speed reducers in permanent magnet rollers consumes a significant amount of electricity, resulting in high energy consumption and increased production costs. Utility Model Content

[0003] To address these issues, the present invention aims to provide a non-powered self-cleaning permanent magnet drum device. Through its unique structural design, it can complete the material removal process without external power and automatically remove metal impurities adhering to the surface of the permanent magnet drum. This technology not only avoids the high energy consumption problem of traditional electric motors and reducers but also effectively reduces equipment failure rates and maintenance costs, greatly improving production efficiency. More importantly, the device adopts a non-electric drive technology, avoiding the risk of electrical equipment explosion in dusty environments and further improving production safety.

[0004] This utility model provides the following technical solution:

[0005] A non-powered self-cleaning permanent magnet drum device includes a housing, the housing comprising a cylinder, an inlet located above the cylinder, and an outlet located below the cylinder. A rotating drum is located inside the cylinder, and an impeller is positioned between the rotating drum and the inlet. The impeller and a drive shaft at one end of the rotating drum both extend out of the cylinder and are connected via a transmission assembly. The drive shaft of the impeller is offset to one side of the inlet, and blades on one side of the impeller drive shaft are used to receive the feed at the inlet to drive the impeller to rotate. One side of the rotating drum and the inner wall of the cylinder form a material drop channel, and the outlet is located below the drop channel. The rotation of the rotating drum causes metal impurities adsorbed on one side of the rotating drum to rotate and fall to the other side of the rotating drum. An impurity outlet is also provided below the cylinder to receive the metal impurities falling from the other side of the rotating drum.

[0006] Thus, the self-cleaning permanent magnet drum device provided by this utility model can complete the material removal work without external power drive by adding an impeller drive design. When the drum rotates to the other side away from the falling channel, it can automatically remove the metal impurities attached to the surface of the drum. This technology not only avoids the high energy consumption problem of traditional electric motors and reducers, but also effectively reduces the failure rate and maintenance cost of the equipment, greatly improving production efficiency. More importantly, the equipment adopts non-electric drive technology, avoiding the risk of explosion of electrical equipment in dusty environments, further improving production safety.

[0007] Preferably, the transmission assembly includes a sprocket fixed outside the transmission shaft and a chain connected to the sprocket. Thus, the power for the rotation of the drum comes from the material impacting the impeller, causing the impeller to rotate, and then being transmitted to the drum through the chain.

[0008] Preferably, the transmission assembly includes a pulley fixed outside the transmission shaft and a belt connected outside the pulley. Thus, the power for the rotation of the drum comes from the material impacting the impeller, causing the impeller to rotate, and is transmitted to the drum via the belt.

[0009] Preferably, a set of mandrels fixed on the cylinder are also mounted inside the rotating drum. At both ends of the mandrels, magnet groups are mounted and fixed circumferentially by two sets of side circular plates. The magnet groups are distributed in an arc shape and are located close to the inner wall of the rotating drum. The magnet groups are located on the side of the rotating drum close to the falling channel.

[0010] Thus, when the material falls through the impeller into the falling channel, because the magnet assembly is fixedly distributed near the falling channel, the outer wall of the rotating drum located on the falling channel side can attract impurities in the material onto the rotating drum under the attraction of the magnet assembly. As the rotating drum rotates to the side away from the falling channel, the attraction force decreases due to the distance from the magnet assembly, allowing the metal impurities to fall freely to the impurity outlet below, thus completing the purpose of automatically removing the metal impurities attached to the surface of the rotating drum.

[0011] Preferably, two sets of bearings with mounting brackets are fixed at both ends of the rotating drum, and the spindle is disposed within the bearings with mounting brackets.

[0012] Preferably, a material distribution assembly is further provided between the impeller and the rotating drum. The material distribution assembly includes a first material distribution plate that slopes downward from the feed inlet toward the underside of the impeller, a second material distribution plate that rests below the first material distribution plate and slopes downward from the underside of the impeller toward the side of the rotating drum, and an arc-shaped panel that receives the material falling below the second material distribution plate and forms a channel gap with the side wall of the rotating drum. The first material distribution plate forms a first material falling gap with the impeller, and the inclined surface of the second material distribution plate forms a second material falling gap with the bottom end of the first material distribution plate.

[0013] Thus, by adding the first material feeding gap, the second material feeding gap, and the channel gap, it can be ensured that the material can be distributed as evenly as possible and fully contact the rotating drum, so as to achieve the purpose of adsorbing metal impurities near the rotating drum.

[0014] Preferably, a set of bending plates is provided between the discharge port and the impurity discharge port. The bending plates are distributed in a flared shape towards the bottom end, and a set of extension plates is provided on the side near the discharge port. The top end of the extension plates is located near the bottom end of the rotating drum, and the bottom end is located near the discharge port. The extension plates can further isolate the material to prevent the material from entering the impurity discharge port due to inertia as the rotating drum rotates.

[0015] The beneficial effects of this utility model are as follows: The self-cleaning permanent magnet drum device provided by this utility model can complete the material removal work without external power drive by adding an impeller drive design. When the drum rotates to the other side away from the falling channel, it can automatically remove the metal impurities attached to the surface of the drum. This technology not only avoids the high energy consumption problem of traditional electric motors and reducers, but also effectively reduces the failure rate and maintenance cost of the equipment, greatly improving production efficiency. More importantly, the equipment adopts non-electric drive technology, avoiding the risk of explosion of electrical equipment in dusty environments, and further improving production safety. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0018] Figure 2 yes Figure 1 The main view;

[0019] Figure 3 yes Figure 1 Side view;

[0020] Figure 4 yes Figure 2 A cross-sectional view along the CC direction;

[0021] Figure 5 yes Figure 3 A cross-sectional view along the DD direction;

[0022] Figure 6 This is a schematic diagram of the structure of the rotating drum and impeller;

[0023] Figure 7 yes Figure 6 The main view;

[0024] Figure 8 yes Figure 7 A cross-sectional view along the AA direction;

[0025] Figure 9 yes Figure 7 Sectional view along the BB direction;

[0026] Markings in the diagram:

[0027] 1. Cylinder body; 2. Feed inlet; 3. Discharge outlet; 4. Rotary drum; 5. Impeller; 6. Transmission assembly; 7. Falling channel; 8. Waste outlet; 9. Mandrel; 10. Magnet assembly; 11. Bearing with seat; 12. Fabric plate one; 13. Fabric plate two; 14. Arc panel; 15. Bending plate; 16. Extension plate. Detailed Implementation

[0028] like Figure 1-9 As shown, a non-powered self-cleaning permanent magnet drum device, in this embodiment, includes a housing, which includes a cylinder 1, an inlet 2 located above the cylinder 1, and an outlet 3 located below the cylinder 1. A rotating drum 4 is provided inside the cylinder 1, and an impeller 5 is provided between the rotating drum 4 and the inlet 2. The drive shafts of the impeller 5 and the rotating drum 4 both extend out of the cylinder 1 and are connected by a transmission group 6. The drive shafts of the impeller 5 are staggered and distributed on one side of the inlet 2, and the blades on one side of the drive shaft of the impeller 5 are used to receive the feed at the inlet 2 to drive the impeller 5 to rotate as a whole. One side of the rotating drum 4 and the inner wall of the cylinder 1 form a material falling channel 7. The outlet 3 is received below the falling channel 7. The rotation of the rotating drum 4 is used to drive the metal impurities adsorbed on one side of the rotating drum 4 to rotate to the other side of the rotating drum 4 and fall off. An impurity outlet 8 is also provided below the cylinder 1 to receive the metal impurities falling off the other side of the rotating drum 4.

[0029] Thus, the self-cleaning permanent magnet drum device provided by this utility model, through the added impeller 5 drive design, can complete the material removal work without external power drive. When the drum 4 rotates to the other side away from the falling channel 7, the metal impurities attached to the surface of the drum 4 can be automatically removed. This technology not only avoids the high energy consumption problem of traditional electric motors and reducers, but also effectively reduces the failure rate and maintenance cost of the equipment, greatly improving production efficiency. More importantly, the equipment adopts non-electric drive technology, avoiding the risk of explosion of electrical equipment in dusty environments, further improving production safety.

[0030] The transmission assembly 6 includes a sprocket or pulley fixed outside the transmission shaft and a chain or belt connected to the corresponding sprocket or pulley. Thus, the power for the rotation of the drum 4 comes from the material impacting the impeller 5, causing the impeller 5 to rotate, and is transmitted to the drum 4 through the chain or belt.

[0031] Inside the rotating drum 4, a set of mandrels 9 fixed on the drum body 1 are also mounted. At both ends of the mandrels 9, magnet groups 10 are mounted and fixed circumferentially through two sets of side circular plates. The magnet groups 10 are distributed in an arc shape and are set close to the inner wall of the rotating drum 4. The magnet groups 10 are located on the side of the rotating drum 4 close to the falling channel 7.

[0032] Thus, when the material falls from the impeller 5 into the falling channel 7, because the magnet assembly 10 is fixedly distributed near the falling channel 7, the outer wall of the rotating drum 4 located on the side of the falling channel 7 can attract impurities in the material to the rotating drum 4 under the attraction of the magnet assembly 10. As the rotating drum 4 rotates to the side away from the falling channel 7, the attraction force decreases due to the distance from the magnet assembly 10, and the metal impurities can fall freely to the impurity outlet 8 below, thus completing the purpose of automatically removing the metal impurities attached to the surface of the rotating drum 4.

[0033] Two sets of seated bearings 11 are fixed at both ends of the rotating drum 4, and the spindle 9 is configured inside the seated bearings 11.

[0034] A material distribution assembly is also provided between the impeller 5 and the rotating drum 4. The material distribution assembly includes a material distribution plate 12 that is inclined downward from the feed inlet 2 toward the impeller 5, a material distribution plate 13 that is supported below the material distribution plate 12 and is inclined from the impeller 5 toward the rotating drum 4, and an arc panel 14 that receives the material falling below the material distribution plate 13 and forms a channel gap with the side wall of the rotating drum 4. The material distribution plate 12 and the impeller 5 form the first material falling gap, and the inclined surface of the material distribution plate 13 and the bottom end of the material distribution plate 12 form the second material falling gap.

[0035] Thus, by adding the first material feeding gap, the second material feeding gap, and the channel gap, it can be ensured that the material can be distributed as evenly as possible and fully contact the rotating drum 4, so as to achieve the purpose of metal impurities approaching the rotating drum 4 and being adsorbed.

[0036] A set of bending plates 15 is also provided between the discharge port 3 and the impurity discharge port 8. The bending plates 15 are distributed in a flared shape towards the bottom end, and a set of extension plates 16 is also provided on the side near the discharge port 3. The top end of the extension plates 16 is located near the bottom end of the rotating drum 4, and the bottom end is located near the discharge port 3. The extension plates 16 can further isolate the material to prevent the material from entering the impurity discharge port 8 due to inertia as the rotating drum 4 rotates.

[0037] The working principle of this utility model is as follows: This utility model provides a non-powered self-cleaning permanent magnet drum device. Through the added impeller 5 driving design, it can complete the material removal work without external power drive. When the drum 4 rotates to the other side away from the falling channel 7, it can automatically remove the metal impurities attached to the surface of the drum 4. This technology not only avoids the high energy consumption problem of traditional electric motors and reducers, but also effectively reduces the equipment failure rate and maintenance costs, greatly improving production efficiency. More importantly, the equipment adopts non-electric drive technology, avoiding the risk of electrical equipment explosion in dusty environments, further improving production safety.

[0038] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A non-powered self-cleaning permanent magnet drum device, comprising a housing, the housing including a cylinder, an inlet disposed above the cylinder, and an outlet disposed below the cylinder, characterized in that, The cylinder is equipped with a rotating drum inside, and an impeller is provided between the rotating drum and the feed inlet. The impeller and the drive shaft at one end of the rotating drum both extend out of the cylinder and are connected by a transmission assembly. The drive shaft of the impeller is staggered on one side of the feed inlet, and the blades on one side of the impeller drive shaft are used to receive the feed at the feed inlet to drive the impeller to rotate as a whole. One side of the rotating drum and the inner wall of the cylinder form a material falling channel. The discharge port is located below the falling channel. The rotation of the rotating drum is used to rotate the metal impurities adsorbed on one side of the rotating drum to the other side of the rotating drum and drop them. A waste outlet is also provided at the bottom of the cylinder to receive the metal impurities falling from the other side of the rotating drum.

2. The non-powered self-cleaning permanent magnet cylinder device according to claim 1, characterized in that, The transmission assembly includes a sprocket fixed outside the transmission shaft and a chain connected to the sprocket.

3. The non-powered self-cleaning permanent magnet cylinder device according to claim 1, characterized in that, The transmission assembly includes a pulley fixed outside the transmission shaft and a belt connected to the pulley.

4. The non-powered self-cleaning permanent magnet cylinder device according to claim 1, characterized in that, Inside the rotating drum, a set of mandrels fixed on the drum body are also installed. At both ends of the mandrels, magnet groups are fixed along the circumference by two sets of side circular plates. The magnet groups are distributed in an arc shape and are located close to the inner wall of the rotating drum. The magnet groups are located on the side of the rotating drum near the falling channel.

5. The non-powered self-cleaning permanent magnet cylinder device according to claim 4, characterized in that, Two sets of bearings with mounting brackets are fixed at both ends of the rotating drum, and the spindle is configured inside the bearings with mounting brackets.

6. The non-powered self-cleaning permanent magnet cylinder device according to claim 1, characterized in that, A material distribution assembly is also provided between the impeller and the rotating drum. The material distribution assembly includes a first material distribution plate that slopes downward from the feed inlet toward the underside of the impeller, a second material distribution plate that is supported below the first material distribution plate and slopes downward from the underside of the impeller toward the side of the rotating drum, and an arc-shaped panel that receives the material falling from the second material distribution plate and forms a channel gap with the side wall of the rotating drum. The first material distribution plate forms a first material falling gap with the impeller, and the inclined surface of the second material distribution plate forms a second material falling gap with the bottom end of the first material distribution plate.

7. The non-powered self-cleaning permanent magnet cylinder device according to claim 1, characterized in that, A set of bending plates is also provided between the discharge port and the waste discharge port. The bending plates are distributed in a flared shape towards the bottom end, and an extension plate is also provided on the side of the extension plate near the discharge port. The top end of the extension plate is located near the bottom end of the rotating drum, and the bottom end is located near the discharge port.