Turnover permanent magnet shallow slot cleaner

Abstract

This utility model discloses a flip-type permanent magnet shallow trench cleaner, including a housing. A drive unit is arranged on one side of the housing's upper cover plate. A chain is fixedly connected to the output end of the drive unit. The chain passes through the housing and is fixedly connected to a first fixed base on one side of the top plate of the permanent magnet box. The other side of the top plate of the permanent magnet box is flipped and hinged to the side wall of the housing. Several magnets are fixed inside the permanent magnet box. Limit switches are fixedly connected to both sides of the permanent magnet box. Upper limit plates are arranged on both sides inside the housing, and a lower limit plate is arranged on the side of the housing away from the flip hinge. The limit switches cooperate with the upper and lower limit plates. A non-magnetic partition area is provided at the bottom of the housing. With the above configuration, the permanent magnet box can accurately return to the optimal working position, the action repeatability is highly consistent, and the magnet attraction process is more stable and reliable.

Description

Technical Field

[0001] This utility model relates to the field of material iron removal equipment technology, and in particular to a tilting permanent magnet shallow trench cleaner. Background Technology

[0002] The tilting permanent magnet shallow trough cleaner is a device used in material conveying systems to remove ferromagnetic impurities, and is widely used in mining, metallurgy, coal, and power industries. Traditional permanent magnet separators mostly adopt fixed or sliding structures, which have problems such as incomplete iron removal, complex mechanisms, and difficult maintenance. Especially in shallow trough-type box structures, due to space constraints, the tilting action and precise positioning of the magnetic box become technical challenges. Utility Model Content

[0003] To address the aforementioned shortcomings, this invention provides a flip-type permanent magnet shallow trench cleaner, which allows the permanent magnet box to accurately return to the optimal working position, ensuring high repeatability and consistency of the action, and making the magnet-attracting process more stable and reliable.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a flip-type permanent magnet shallow trench cleaner, comprising a housing, a drive unit provided on one side of the housing's upper cover plate, a chain fixedly connected to the output end of the drive unit, the chain passing through the housing and fixedly connected to a first fixed base on one side of the top plate of the permanent magnet box, the other side of the top plate of the permanent magnet box being flipped and hinged to the side wall of the housing, a plurality of magnets fixed inside the permanent magnet box, limit switches fixedly connected to both sides of the permanent magnet box, upper limit plates provided on both sides inside the housing, a lower limit plate provided on the side of the housing away from the flip hinge, the limit switches cooperating with the upper and lower limit plates, and a non-magnetic partition area provided at the bottom of the housing.

[0005] As a further improvement of this utility model, drill holes are respectively opened at the four corners of the top of the box, and lifting rings are fixedly connected in the drill holes by threads.

[0006] As a further improvement of this utility model, a second fixed base is provided on the side of the top plate of the permanent magnet box away from the first fixed base, and the second fixed base is hinged to the flip hinge seat fixedly connected inside the box body.

[0007] As a further improvement of this utility model, the drive unit includes a geared motor, the output end of which is fixedly connected to a sprocket, and a traction chain is fixedly fitted on the sprocket.

[0008] As a further improvement of this utility model, the non-magnetic partition area is made of a 3-5mm non-magnetic metal plate.

[0009] As a further improvement of this utility model, the height of the box is less than or equal to the thickness of the magnetic box plus 150mm.

[0010] The beneficial effects of this utility model are:

[0011] 1. By setting an upper limit plate and a horizontal lower limit plate, and working in conjunction with limit switches, precise control of the magnet-attracting and unloading positions is achieved. Through a combination of a geared motor, sprocket and chain drive, and gravity, the magnetic box automatically flips and resets. The actions are automatically judged and controlled by the limit switches, resulting in a high degree of automation and reducing the workload of operators. This ensures that the permanent magnet box accurately resets to the optimal working position each time, with high repeatability and consistency, making the system more stable and reliable.

[0012] 2. Through an optimized low-friction hinge structure and a needle roller bearing pin with a friction coefficient ≤0.05, the flipping resistance is greatly reduced, making the flipping action of the magnetic box smoother and more reliable. Combined with a precise large-angle flipping design, it ensures that the magnet is fully away from the adsorption surface, completely eliminating the magnetic adsorption force, thereby achieving complete and clean removal of ferromagnetic materials. Attached Figure Description

[0013] Figure 1 This is an isometric drawing of the present invention: a flip-type permanent magnet shallow trench cleaner;

[0014] Figure 2 This is a first schematic diagram of the internal structure of a flip-type permanent magnet shallow trench cleaner;

[0015] Figure 3 This is a second schematic diagram of the internal structure of the flip-type permanent magnet shallow trench cleaner;

[0016] Figure 4 This is a schematic diagram of the internal structure of a permanent magnet box.

[0017] In the diagram: 1-box, 2-lifting ring, 3-traction chain, 4-sprocket, 5-gear motor, 6-limit switch, 7-upper limit plate, 8-lower limit plate, 9-second fixed base, 10-permanent magnet box, 11-first fixed base, 12-flip hinge seat, 13-magnet. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific examples described herein are merely illustrative of the present utility model and are not intended to limit the present utility model. The directional terms mentioned in the following embodiments, such as up, down, left, right, front, or back, are only for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for illustrative purposes and not for limiting the present utility model. Furthermore, in all embodiments, the same reference numerals denote the same elements.

[0019] like Figures 1 to 4The flip-type permanent magnet shallow trench cleaner shown includes a housing 1. Lifting rings 2 are fixed at the four corners of the top of the housing 1. The lifting rings 2 are M16-M24, that is, the lifting rings 2 fit into the drilled holes of the housing 1 through their threaded connection parts with an outer diameter of 16mm-24mm.

[0020] A drive unit is fixedly connected to one side of the center of the top cover of the housing 1. The drive unit includes a geared motor 5. A sprocket 4 is fixedly connected to the output end of the geared motor 5. A traction chain 3 is fixedly fitted on the sprocket 4. The traction chain 3 passes through the center of the top of the housing 1 and into the interior of the housing 1 to connect to the permanent magnet box 10.

[0021] A first fixed base 11 is provided on one side of the top plate of the permanent magnet box 10, and the traction chain 3 is fixedly connected to the first fixed base 11.

[0022] Two second fixed bases 9 are provided on the other side of the top plate of the permanent magnet box 10. The second fixed bases 9 are hinged to the flip hinge seat 12 fixedly connected to the side wall of the box 1 through the needle roller bearing shaft pin structure to form a flip hinge point. The friction coefficient of the bearing shaft pin structure is ≤0.05.

[0023] As a further illustration of this example, the height H of the box 1 satisfies: H≤ magnetic box thickness + 150mm.

[0024] The permanent magnet box 10 is filled with several neodymium iron boron magnets 13.

[0025] Limit switches 6 are provided on both sides of the permanent magnet box 10. Upper limit plates 7 are provided on both sides of the inside of the box 1. The upper limit plate 7 limits the unloading position to 120°±5°, that is, when the limit switch 6 contacts the upper surface of the upper limit plate 7, the angle between the permanent magnet box 10 and the horizontal plane is between 115° and 125° clockwise.

[0026] Inside the housing 1, on the side away from the flip hinge seat 12, there are two lower limit plates 8. The lower limit plates 8 are horizontally arranged magnetic plates. The positioning tolerance of the lower limit plates 8 for horizontal magnetic attraction is ≤ ±2°, that is, when the limit switch 6 contacts the upper surface of the lower limit plate 8, the angle error between the permanent magnet box 10 and the horizontal plane is between -2 degrees and +2 degrees.

[0027] Limit switch 6 is located in the same plane as upper limit plate 7 and lower limit plate 8.

[0028] As a further illustration of this example, when the permanent magnet box 10 drives the limit switch 6 to move, the trajectory line of the trigger roller of the limit switch 6 is perpendicular to the lower surface of the upper limit plate 7 and the upper surface of the lower limit plate 8. When the trigger roller contacts the trigger surface, the limit switch 6 responds.

[0029] The bottom of the box 1 is a non-magnetic partition area, which is made of a 3-5mm thick non-magnetic metal plate with a residual magnetic field strength of ≤5 Gauss on its surface.

[0030] Working principle and usage process of this utility model:

[0031] When in the magnetizing state, the limit switch 6 is kept in the standby state, the limit switch 6 is in contact with the lower limit plate 8, and the magnet in the permanent magnet box 10 is in the working position near the bottom of the box 1, thereby attracting the iron in the material to the bottom of the box 1.

[0032] When iron needs to be unloaded, the reduction motor 5 drives the sprocket 4 to rotate, and the length of the traction chain 3 fixed and fitted on the sprocket 4 increases. The traction chain 3 pulls the permanent magnet box 10 hinged on one side to rotate around the flip hinge point. When the limit switch 6 contacts the upper limit plate 7, the reduction motor 5 stops moving. At this time, the magnet inside the permanent magnet box 10 is far away from the bottom of the box 1 and does not have the attraction property. The attracted iron falls off from the bottom of the box 1.

[0033] When it is necessary to attract iron again, the reduction motor 5 reverses, and the traction chain 3 on the sprocket 4 returns to its original length. Under the action of gravity, the permanent magnet box 10 rotates around the flip hinge point, and the limit switch 6 triggers the lower limit plate 8 again to attract iron again.

[0034] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above-described embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A tilting permanent magnet shallow trench cleaner, characterized in that, The enclosure includes a housing (1), a drive unit is provided on one side of the top cover of the housing (1), a chain is fixedly connected to the output end of the drive unit, the chain passes through the housing (1) and is fixedly connected to the first fixed base (11) on one side of the top plate of the permanent magnet box (10), the other side of the top plate of the permanent magnet box (10) is hinged to the side wall of the housing (1), a number of magnets are fixed inside the permanent magnet box (10), limit switches (6) are fixedly connected to both sides of the permanent magnet box (10), upper limit plates (7) are provided on both sides inside the housing (1), and lower limit plates (8) are provided on the side of the housing (1) away from the hinge, the limit switches (6) cooperate with the upper limit plates (7) and the lower limit plates (8), and a non-magnetic partition area is provided at the bottom of the housing (1).

2. The flip-type permanent magnet shallow trench cleaner according to claim 1, characterized in that, The box (1) has drilled holes at the four corners of its top, and a lifting ring (2) is fixedly connected to the drilled hole by a thread.

3. The tilting permanent magnet shallow trench cleaner according to claim 1, characterized in that, The top plate of the permanent magnet box (10) is provided with a second fixed base (9) on the side away from the first fixed base (11). The second fixed base (9) is hinged to the flip hinge seat (12) fixedly connected inside the box body (1).

4. The tilting permanent magnet shallow trench cleaner according to claim 1, characterized in that, The drive unit includes a geared motor (5), and a sprocket (4) is fixedly connected to the output end of the geared motor (5). A traction chain (3) is fixedly fitted on the sprocket (4).

5. The flip-type permanent magnet shallow trench cleaner according to claim 1, characterized in that, The non-magnetic partition area uses a 3-5mm non-magnetic metal plate.

6. The tilting permanent magnet shallow trench cleaner according to claim 1, characterized in that, The height of the box (1) is less than or equal to the thickness of the magnetic box plus 150mm.

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