Metal cutting and crushing device

Abstract

The utility model belongs to the technical field of metal processing, and particularly relates to a metal cutting and crushing device which comprises a metal crusher body, the side wall of the metal crusher body is fixedly connected with a dust collection box; the side wall of the metal crusher body is fixedly connected with a dust collection fan; air suction is conducted through a dust suction fan, then dust sucked by a dust suction pipe enters a dust collection box through a conveying pipe, a spiral impeller can be driven to rotate under the impact effect of airflow, dust attached to the inner side wall of a flow guide cover can be scraped off, and the situation that a large amount of dust is generated when an existing metal crusher body crushes metal can be reduced; at the moment, dust is sucked into a dust collection box through a dust suction pipe, so that the metal crusher body can clean and collect the dust generated when the metal is crushed, and a certain potential safety hazard is caused. And meanwhile, dust attached to the inner side wall of the flow guide cover can be cleaned through the scraper blade.

Description

Technical Field

[0001] The utility model belongs to the technical field of metal processing, in particular to a metal cutting and crushing device. Background Art

[0002] Metal materials refer to materials with gloss, ductility, easy conductivity and heat transfer properties. Due to their unique physical and chemical properties, metal materials are widely used in various fields, including construction, transportation, electronics, aviation, and energy.

[0003] In the prior art, some metal waste is often crushed and recycled for subsequent reuse. Metal crushing is mainly carried out using a metal crusher, which is mainly composed of a machine body, a feed hopper, and a crushing mechanism. During use, the crushing mechanism is first started, and then the metal waste is put into the machine body through the feed hopper, so that the metal waste can be crushed by the crushing mechanism.

[0004] However, in the prior art, it is found that during the process of crushing metal waste by a metal crusher, a large amount of dust is generated, causing the dust to float in the surrounding air, which is inconvenient to clean and will cause certain pollution to the surrounding air quality. Therefore, a metal cutting and crushing device is proposed to address the above problem. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art and solve at least one technical problem raised in the background technology, the utility model proposes a metal cutting and crushing device.

[0006] The technical solution adopted by the utility model to solve its technical problems is: a metal cutting and crushing device described in the utility model comprises a metal crusher body; a dust collecting box is fixedly connected to the side wall of the metal crusher body; a dust suction fan is fixedly connected to the side wall of the metal crusher body; a conveying pipe is fixedly connected between the dust collecting box and the dust suction fan; a dust suction pipe is fixedly connected to the side wall of the dust suction fan; a guide cover is fixedly connected to the end of the dust suction pipe; a spiral impeller is rotatably connected to the inner side wall of the dust suction pipe; a pair of scrapers are provided at the end of the spiral impeller; the scrapers are symmetrically arranged on both sides of the spiral impeller and have the same structure; at this time, the dust is sucked into the dust collecting box through the dust suction pipe, thereby playing the role of cleaning and collecting the dust generated during the metal crushing by the metal crusher body, and at the same time, the scraper can play the role of cleaning the dust attached to the inner side wall of the guide cover.

[0007] Preferably, the side wall of the air deflector is provided with a filter screen; the side wall of the scraper is fixedly connected to a magnetic block; the inner wall of the air deflector is fixedly connected to a plurality of elastic rods; the elastic rods are evenly distributed on the inner wall of the air deflector and have the same structure; the ends of the elastic rods are fixedly connected to magnetic balls; at this time, the filter screen is set up to filter larger particles of iron filings mixed in the dust, and at the same time, the vibration generated by the magnetic ball hitting the filter screen can prevent the filter screen from being blocked when in use.

[0008] Preferably, the side wall of the air deflector is fixedly connected with a plurality of mounting blocks; the mounting blocks are evenly distributed on the side wall of the air deflector and have the same structure; the side wall of the mounting block is provided with a through hole; the side wall of the mounting block is hinged with a clamping block; the side wall of the filter screen cover is fixedly connected with a plurality of plug rods; the plug rods are evenly distributed on the side wall of the filter screen cover and have the same structure; the side wall of the plug rods is provided with a slot; at this time, the plug rods are inserted into the through holes for fixing, thereby facilitating the disassembly and installation of the filter screen cover, thereby improving the convenience of replacing the filter screen cover.

[0009] Preferably, a pair of telescopic rods are fixedly connected to the end of the spiral impeller; the telescopic rods are symmetrically arranged on both sides of the spiral impeller and have the same structure; a spring is sleeved on the outside of the telescopic rod; the telescopic rod, spring and scraper are fixedly connected; at this time, the telescopic rod and spring are arranged to increase the sufficient contact between the scraper and the inner wall of the guide cover, thereby improving the cleaning effect of the guide cover.

[0010] Preferably, a slide groove is provided on the side wall of the dust box; a pair of guide rails are fixedly connected to the side wall of the slide groove; the guide rails are symmetrically arranged on both sides of the slide groove and have the same structure; a slider is slidably connected to the inner wall of the guide rail; a rubber pad is fixedly connected to the side wall of the slider; the side wall of the slider is fixedly connected to the same dust hopper; at this time, the dust hopper is provided to facilitate the processing of the collected dust.

[0011] Preferably, the scraper side wall is evenly fixed with multiple cleaning brushes; the cleaning brush side wall is fixed with a connecting rod; the connecting rod passes through the cleaning brush wall body and is fixed thereto; at this time, the cleaning brush is provided to further enhance the cleaning effect of dust attached to the inner wall of the air guide cover.

[0012] Preferably, a rubber sleeve is fixedly connected to the side wall of the magnetic ball; in this case, the rubber sleeve plays a protective role when the magnetic ball hits the wall of the filter screen cover, thereby increasing the service life of the filter screen cover.

[0013] Beneficial effects of the utility model:

[0014] 1. The utility model provides a metal cutting and crushing device. By setting up a dust collecting box and a scraper, the existing metal crusher body can reduce the large amount of dust generated when crushing metal, causing it to float in the surrounding air and be easily inhaled by the staff, thus causing certain safety hazards. At this time, the dust is sucked into the dust collecting box through the dust suction pipe, thereby playing the role of cleaning and collecting the dust generated by the metal crusher body when crushing the metal. At the same time, the scraper can play a role in cleaning the dust attached to the inner wall of the air guide cover.

[0015] 2. The utility model provides a metal cutting and crushing device. Through the filter screen and magnetic balls, the dust suction pipe can be reduced in the process of dust suction, which makes it easy to suck in some larger particles of iron filings, making it inconvenient to separate them, resulting in a certain increase in workload. At this time, the filter screen can be set to filter the larger particles of iron filings mixed in the dust. At the same time, the vibration generated by the magnetic ball hitting the filter screen can prevent the filter screen from being blocked when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0017] Figure 1 It is a three-dimensional diagram of the utility model;

[0018] Figure 2 It is a three-dimensional diagram of the filter screen cover in the utility model;

[0019] Figure 3 yes Figure 2 A partial enlarged view of the middle part;

[0020] Figure 4 It is a three-dimensional diagram of the sliding block in the utility model.

[0021] Legend:

[0022] 1. Metal crusher body; 11. Dust box; 12. Dust suction fan; 13. Delivery pipe; 14. Dust suction pipe; 15. Air guide cover; 16. Spiral impeller; 17. Scraper; 2. Filter cover; 21. Magnetic block; 22. Elastic rod; 23. Magnetic ball; 3. Mounting block; 31. Through hole; 32. Block; 33. Insert rod; 34. Slot; 4. Telescopic rod; 41. Spring; 5. Slide; 51. Guide rail; 52. Sliding block; 53. Rubber pad; 54. Dust hopper; 6. Cleaning brush; 61. Connecting rod; 7. Rubber sleeve. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Specific examples are given below.

[0025] See also Figure 1-Figure 3 The utility model provides a metal cutting and crushing device, comprising a metal crusher body 1; a dust collecting box 11 is fixedly connected to the side wall of the metal crusher body 1; a dust suction fan 12 is fixedly connected to the side wall of the metal crusher body 1; a conveying pipe 13 is fixedly connected between the dust collecting box 11 and the dust suction fan 12; a dust suction pipe 14 is fixedly connected to the side wall of the dust suction fan 12; a guide cover 15 is fixedly connected to the end of the dust suction pipe 14; a spiral impeller 16 is rotatably connected to the inner side wall of the dust suction pipe 14; the spiral impeller A pair of scrapers 17 are provided at the end of the wheel 16; the scrapers 17 are symmetrically arranged on both sides of the spiral impeller 16 and have the same structure; when in use, when the metal crusher body 1 is crushing the metal, the dust suction fan 12 is started at the same time, and the dust suction fan 12 will be exhausted to suck the dust floating out when the metal crusher body 1 is crushing the metal into the dust suction pipe 14. During the dust suction process of the dust suction pipe 14, the dust suction range of the dust suction pipe 14 can be increased through the guide cover 15, thereby improving the dust suction effect. The dust sucked by the dust suction pipe 14 will then enter the dust collecting box 11 through the conveying pipe 13, and the dust will be collected by the dust collecting box 11. When the dust suction fan 12 is in operation, the spiral impeller 16 will be driven to rotate under the impact of the airflow, so that the scraper 17 will move on the side wall of the air guide cover 15. At this time, the dust attached to the inner wall of the air guide cover 15 can be scraped off by the contact between the scraper 17 and the inner wall of the air guide cover 15, and the scraped dust will be sucked into the dust collecting box 11 by the dust suction pipe 14. In this process, the existing metal crusher body 1 can generate a large amount of dust when crushing metal, causing it to float in the surrounding air and be easily inhaled into the body by the staff, thereby causing certain safety hazards. At this time, the dust is sucked into the dust collecting box 11 through the dust suction pipe 14, so as to play the role of cleaning and collecting the dust generated by the metal crusher body 1 during metal crushing. At the same time, the scraper 17 can play a role of cleaning the dust attached to the inner wall of the air guide cover 15.

[0026] Further, such as Figure 1-Figure 3As shown, the side wall of the air deflector 15 is provided with a filter screen cover 2; the side wall of the scraper 17 is fixedly connected to a magnetic block 21; the inner wall of the air deflector 15 is fixedly connected to a plurality of elastic rods 22; the elastic rods 22 are evenly distributed on the inner wall of the air deflector 15 and have the same structure; the end of the elastic rod 22 is fixedly connected to a magnetic ball 23; when in use, when the dust suction pipe 14 is vacuuming, the airflow and dust will pass through the filter screen cover 2, and the larger particles of iron filings mixed in the dust can be filtered through the filter screen cover 2 to prevent them from entering the dust suction pipe 14. At the same time, when the scraper 17 is rotating, the magnetic block 21 rotates to a position corresponding to the position of the magnetic ball 23. Under the effect of the magnetic repulsion between the two, the magnetic block 21 can push the magnetic ball 23 to make it The magnetic ball 23 hits the wall of the filter screen cover 2, and the elastic rod 22 will produce a certain deformation. At this time, the magnetic ball 23 hitting the wall of the filter screen cover 2 will produce a certain vibration, which can vibrate off the larger particles of iron filings attached to the side wall of the filter screen cover 2 so that they do not cause blockage to the filter screen cover 2. In this process, the dust suction pipe 14 can be reduced during the dust suction process, which makes it easy to suck in some larger particles of iron filings, making it inconvenient to separate them, resulting in a certain increase in workload. At this time, the filter screen cover 2 is set, which can filter the larger particles of iron filings mixed in the dust. At the same time, the vibration generated by the magnetic ball 23 hitting the filter screen cover 2 can prevent the filter screen cover 2 from being blocked when in use.

[0027] Further, such as Figure 3 As shown, the side wall of the air deflector 15 is fixedly connected with a plurality of mounting blocks 3; the mounting blocks 3 are evenly distributed on the side wall of the air deflector 15 and have the same structure; the side wall of the mounting block 3 is provided with a through hole 31; the side wall of the mounting block 3 is hinged with a clamping block 32; the side wall of the filter screen cover 2 is fixedly connected with a plurality of plug rods 33; the plug rods 33 are evenly distributed on the side wall of the filter screen cover 2 and have the same structure; the side wall of the plug rod 33 is provided with a slot 34; when in use, the staff holds the filter screen cover 2 and inserts the plug rod 33 into the through hole 31, at which time the plug rod 33 will press against the side wall of the clamping block 32, and when it is pushed open, the plug rod 33 When fully inserted into the through hole 31, the slot 34 will correspond to the position of the block 32 and will automatically reset under the action of the internal torsion spring at the hinge of the block 32, so that it can be inserted into the side wall of the slot 34 and the insertion rod 33 can be stuck, thereby fixing the filter screen cover 2. In this process, the filter screen cover 2 can be reduced inconvenient to disassemble and replace after being damaged after long-term use, thereby causing a certain impact on the use effect of the filter screen cover 2. At this time, the insertion rod 33 is inserted into the through hole 31 to fix it, thereby facilitating the disassembly and installation of the filter screen cover 2 and improving the convenience of replacing the filter screen cover 2.

[0028] Further, such as Figure 3As shown, a pair of telescopic rods 4 are fixedly connected to the end of the spiral impeller 16; the telescopic rods 4 are symmetrically arranged on both sides of the spiral impeller 16 and have the same structure; a spring 41 is sleeved on the outer side of the telescopic rod 4; the telescopic rod 4, the spring 41 and the scraper 17 are in a fixed relationship; when in use, the scraper 17 is in contact and friction with the inner wall of the air deflector 15 for a long time, which will cause certain wear on the scraper 17, so that the distance between the scraper 17 and the air deflector 15 is increased. At this time, under the elastic force of the spring 41, a certain reaction force will be applied to the scraper 17, pushing the scraper 17 toward the inner wall of the air deflector 15 so that the two are in full contact. In this process, the scraper 17 can be reduced. After long-term use, a certain wear will be generated, so that the distance between the scraper 17 and the air deflector 15 is increased, affecting the cleaning effect of the air deflector 15. At this time, the telescopic rod 4 and the spring 41 are set, and the full contact between the scraper 17 and the inner wall of the air deflector 15 is increased, thereby improving the cleaning effect of the air deflector 15.

[0029] Further, such as Figure 1 , Figure 2 , Figure 4 As shown, the side wall of the dust box 11 is provided with a slide groove 5; a pair of guide rails 51 are fixedly connected to the side wall of the slide groove 5; the guide rails 51 are symmetrically arranged on both sides of the slide groove 5 and have the same structure; a slider 52 is slidably connected to the inner side wall of the guide rail 51; a rubber pad 53 is fixedly connected to the side wall of the slider 52; the side wall of the slider 52 is fixedly connected to the same dust hopper 54; when in use, the dust hopper 54 is first held by a staff member, and the slider 52 is inserted into the inner side wall of the guide rail 51. At this time, a certain friction force is generated by the contact between the rubber pad 53 and the guide rail 51, so that the dust hopper 54 is fixed. The dust hopper 54 is placed in the dust box 11, and the dust sucked in through the dust suction pipe 14 will fall into the dust hopper 54. The dust hopper 54 can collect the dust. After collecting enough dust, the staff holds the handle on the side wall of the dust hopper 54 and pulls it to pull the dust hopper 54 out of the chute 5, so that the dust in the dust hopper 54 can be processed. In this process, the dust box 11 can be reduced. After collecting a lot of dust, it is inconvenient to process it, thereby increasing a certain amount of workload. At this time, the dust hopper 54 is set, which makes it convenient to process the collected dust.

[0030] Further, such as Figure 3As shown, the side wall of the scraper 17 is evenly fixed with multiple cleaning brushes 6; the side wall of the cleaning brush 6 is fixed with a connecting rod 61; the connecting rod 61 passes through the wall of the cleaning brush 6 and is fixed thereto; when in use, when the scraper 17 scrapes off the dust attached to the inner wall of the air guide hood 15, the cleaning brush 6 can be used to clean the position after the scraper 17 scrapes off the remaining dust, and in the process of cleaning by the cleaning brush 6, multiple cleaning brushes 6 can be fixedly connected by the connecting rod 61, so that they are concentrated together during cleaning to improve the cleaning effect. In this process, the cleaning effect of the scraper 17 on the dust attached to the inner wall of the air guide hood 15 can be reduced, resulting in some dust still attached to the inner wall of the air guide hood 15, which will have a certain impact on the dust collection effect. At this time, the cleaning brush 6 is set to further increase the cleaning effect of the dust attached to the inner wall of the air guide hood 15.

[0031] Further, such as Figure 3 As shown, the side wall of the magnetic ball 23 is fixedly connected with a rubber sleeve 7; when in use, when the magnetic ball 23 hits the wall of the filter screen cover 2, the rubber sleeve 7 can prevent the magnetic ball 23 from directly contacting the filter screen cover 2. At the same time, the flexibility of the rubber sleeve 7 can reduce the damage caused by the knocking. In this process, the magnetic ball 23 can be reduced from being easily damaged by the wall of the filter screen cover 2 due to long-term knocking, thereby affecting the filtering effect of the filter screen cover 2. At this time, the rubber sleeve 7 is set to protect the magnetic ball 23 from hitting the wall of the filter screen cover 2, thereby increasing the service life of the filter screen cover 2.

[0032] Working principle: During use, when the metal crusher body 1 is crushing the metal, the dust suction fan 12 is started at the same time, and the dust suction fan 12 will exhaust air to suck the dust floating out when the metal crusher body 1 is crushing the metal into the dust suction pipe 14. During the dust suction process of the dust suction pipe 14, the dust suction range of the dust suction pipe 14 can be increased through the air guide cover 15 to improve the dust suction effect. After that, the dust sucked by the dust suction pipe 14 will enter the dust collecting box 11 through the conveying pipe 13, and the dust will be collected by the dust collecting box 11. In addition, when the dust suction fan 12 is in operation, the spiral impeller 16 will be driven to rotate under the impact of the airflow, so that the scraper 17 moves on the side wall of the air guide cover 15. At this time, the scraper 17 and the inner side of the air guide cover 15 The dust attached to the inner wall of the air guide cover 15 can be scraped off by contact with the wall, and the scraped dust will be sucked into the dust collection box 11 by the dust suction pipe 14. When in use, when the dust suction pipe 14 is suctioning, the airflow and dust will pass through the filter screen cover 2, and the larger particles of iron filings mixed in the dust can be filtered through the filter screen cover 2 to prevent them from entering the dust suction pipe 14. At the same time, when the scraper 17 is rotating, the magnetic block 21 is rotated to correspond to the position of the magnetic ball 23. Under the effect of the magnetic repulsion between the two, the magnetic block 21 can push the magnetic ball 23 to make the magnetic ball 23 collide with the wall of the filter screen cover 2, and the elastic rod 22 will produce a certain deformation. At this time, the magnetic ball 23 hitting the wall of the filter screen cover 2 will produce a certain vibration effect, which can make the magnetic ball 23 attached to the filter screen cover 2 be able to pass through. The larger iron filings on the side wall of the filter cover 2 are vibrated off so that they do not cause clogging of the filter cover 2. When in use, the staff holds the filter cover 2 and inserts the insertion rod 33 into the through hole 31. At this time, the insertion rod 33 will be against the side wall of the block 32. When it is pushed open, the insertion rod 33 is completely inserted into the through hole 31, and the slot 34 will correspond to the position of the block 32. Under the action of the internal torsion spring at the hinge of the block 32, it will automatically reset itself, so that it is inserted into the side wall of the slot 34, and the insertion rod 33 is stuck, so that the filter cover 2 can be fixed. When in use, the scraper 17 will cause certain wear and tear on the scraper 17 due to the long-term contact and friction between the scraper 17 and the guide cover 15, so that the distance between the scraper 17 and the guide cover 15 is increased. At this time, under the elastic force of the spring 41 When in use, a certain reaction force will be applied to the scraper 17, pushing the scraper 17 onto the inner wall of the air guide cover 15 so that the two are in full contact. When in use, the staff first holds the dust hopper 54 and inserts the slider 52 onto the inner wall of the guide rail 51. At this time, a certain friction will be generated due to the contact between the rubber pad 53 and the guide rail 51, and the dust hopper 54 will be fixed so that the dust hopper 54 is placed in the dust box 11. The dust sucked in by the dust suction pipe 14 will fall into the dust hopper 54, and the dust hopper 54 can collect the dust. When enough dust is collected, the staff holds the handle on the side wall of the dust hopper 54 and pulls it to pull the dust hopper 54 out of the chute 5, so that the dust in the dust hopper 54 can be processed. When in use,When the scraper 17 scrapes off the dust attached to the inner wall of the air guide cover 15, the cleaning brush 6 can clean the position after the scraper 17 scrapes off the remaining dust, and during the cleaning process of the cleaning brush 6, multiple cleaning brushes 6 can be fixedly connected by the connecting rod 61 so that they are concentrated together during cleaning to improve the cleaning effect. When in use, when the magnetic ball 23 hits the wall of the filter screen cover 2, the rubber sleeve 7 can prevent the magnetic ball 23 from directly contacting the filter screen cover 2. At the same time, the flexible effect of the rubber sleeve 7 can reduce the damage caused by the knocking.

[0033] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A metal cutting and crushing device, comprising a metal crusher body (1); characterized in that: A dust collecting box (11) is fixedly connected to the side wall of the metal crusher body (1); a dust suction fan (12) is fixedly connected to the side wall of the metal crusher body (1); a conveying pipe (13) is fixedly connected between the dust collecting box (11) and the dust suction fan (12); a dust suction pipe (14) is fixedly connected to the side wall of the dust suction fan (12); a guide cover (15) is fixedly connected to the end of the dust suction pipe (14); a spiral impeller (16) is rotatably connected to the inner side wall of the dust suction pipe (14); a pair of scrapers (17) are provided at the ends of the spiral impeller (16); the scrapers (17) are symmetrically arranged on both sides of the spiral impeller (16) and have the same structure.

2. A metal cutting and crushing device according to claim 1, characterized in that: The side wall of the air deflector (15) is provided with a filter screen (2); the side wall of the scraper (17) is fixedly connected to a magnetic block (21); the inner wall of the air deflector (15) is fixedly connected to a plurality of elastic rods (22); the elastic rods (22) are evenly distributed on the inner wall of the air deflector (15) and have the same structure; and the ends of the elastic rods (22) are fixedly connected to magnetic balls (23).

3. A metal cutting and crushing device according to claim 2, characterized in that: The side wall of the air deflector (15) is fixedly connected to a plurality of mounting blocks (3); the mounting blocks (3) are evenly distributed on the side wall of the air deflector (15) and have the same structure; the side wall of the mounting block (3) is provided with a through hole (31); the side wall of the mounting block (3) is hinged with a clamping block (32); the side wall of the filter screen cover (2) is fixedly connected to a plurality of insertion rods (33); the insertion rods (33) are evenly distributed on the side wall of the filter screen cover (2) and have the same structure; the side wall of the insertion rods (33) is provided with a slot (34).

4. A metal cutting and crushing device according to claim 1, characterized in that: A pair of telescopic rods (4) are fixedly connected to the ends of the spiral impeller (16); the telescopic rods (4) are symmetrically arranged on both sides of the spiral impeller (16) and have the same structure; a spring (41) is sleeved on the outside of the telescopic rod (4); the telescopic rod (4), the spring (41) and the scraper (17) are in a fixed connection relationship.

5. A metal cutting and crushing device according to claim 1, characterized in that: The dust box (11) has a side wall provided with a slide groove (5); the side wall of the slide groove (5) is fixedly connected to a pair of guide rails (51); the guide rails (51) are symmetrically arranged on both sides of the slide groove (5) and have the same structure; a slider (52) is slidably connected to the inner side wall of the guide rail (51); a rubber pad (53) is fixedly connected to the side wall of the slider (52); and the side wall of the slider (52) is fixedly connected to the same dust hopper (54).

6. A metal cutting and crushing device according to claim 1, characterized in that: A plurality of cleaning brushes (6) are evenly fixedly connected to the side wall of the scraper (17); a connecting rod (61) is fixedly connected to the side wall of the cleaning brush (6); and the connecting rod (61) penetrates the wall of the cleaning brush (6) and is fixedly connected thereto.

7. A metal cutting and crushing device according to claim 2, characterized in that: A rubber sleeve (7) is fixedly connected to the side wall of the magnetic ball (23).

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