Magnetic separation mechanism of a magnetic separator

Abstract

The present invention relates to the technical field of magnetic separators, and in particular to a magnetic separation mechanism of a magnetic separator, including a frame, a stripping mechanism, a secondary separation mechanism, a power-assisting mechanism and a transmission mechanism, wherein the inner wall of the frame is rotatably connected with four evenly distributed lower transmission rollers, and the outer wall of the second shaft is fixedly connected with two evenly distributed large magnetic rollers, and the outer walls of the two large magnetic rollers are both sleeved with upper conveying belts. The present invention sets a stripping mechanism, and when gravel is clamped between an iron nail and the belt, the stripping mechanism can make the iron nail and the gravel leave the upper conveying belt, so that after a period of free fall, the iron nail is again attracted by the small magnetic roller for secondary separation, and at the same time, the stripping mechanism cooperates with the transmission mechanism so that the gravel that is constantly rolling in the concave part can be pushed out, thereby avoiding the situation where the bending part of the iron nail is attracted by the magnetic force and thus clamps the gravel.

Description

Technical Field

[0001] The invention relates to the technical field of magnetic separators, and in particular to a magnetic separation mechanism of a magnetic separator. Background Art

[0002] Magnetic separator is one of the most widely used and versatile machines in the industry. It is suitable for separating materials with magnetic differences. Magnetic separators are widely used in mining, wood, kiln, chemical, food and other industries.

[0003] The patent with announcement number CN116651612B discloses a high-efficiency magnetic separator, including a shell and a lower conveyor belt and an upper conveyor belt rotating inside the shell. A magnetic roller is provided at one end of the upper conveyor belt. Both ends of the roller shaft of the magnetic roller are rotatably connected with a pressure wheel mechanism. The pressure wheel mechanism presses down on the lower conveyor belt to form a concave arc-shaped portion on the upper part of the lower conveyor belt, thereby forming an arc-shaped magnetic separation zone between the lower conveyor belt and the magnetic roller, which can cause the mineral materials passing through the arc-shaped magnetic separation zone to turn over. A plurality of top pressure rollers are also rotatably provided on the inner side of the concave portion of the lower conveyor belt, and a plurality of swing hammers are movably provided on the top pressure rollers. The plurality of swing hammers continuously strike the inner side surface of the lower conveyor belt during centrifugal rotation to vibrate the mineral materials in the arc-shaped magnetic separation zone.

[0004] However, the above-mentioned high-efficiency magnetic separator still has some shortcomings in actual use: 1. The manual

[0042] states that "the magnetic material is discharged from the discharge hopper 12 after moving with the upper conveyor belt 33, and the non-magnetic material is discharged from the discharge end of the lower conveyor belt 27", and the manual

[0045] states that "the ore material is constantly turned over in the process of moving in and out of the concave part". If the continuous turning of the ore material is to be achieved, it means that there is no structure such as a baffle on the lower conveyor belt, that is, it is impossible for the ore material to move out of the concave part of the lower conveyor belt only by friction, which will only cause more and more ore material in the concave part. At the same time, the range of the magnetic roller is limited, and the upper conveyor belt is inclined. After being separated from the magnetic roller, the magnetic material is very easy to slide down along the inclined surface, affecting the separation effect;

[0005] 2. The above-mentioned high-efficiency magnetic separator is only suitable for separating powdered mineral materials, and is not suitable for separating small metal segments such as nails and gravel. If small metal segments are mixed with gravel, due to the irregular shape of the small metal segments, some of them are very easy to bend. If the bending part of the small metal segment is adsorbed by magnetic force, the gravel is clamped between the small metal segment and the belt, which can easily cause incomplete separation. Or after several small metal segments are adsorbed by magnetic force, the gaps between the small metal segments are mixed with gravel, which can also make the separation incomplete. Therefore, a magnetic separation mechanism of a magnetic separator is proposed to solve the above-mentioned problems. Summary of the invention

[0006] The purpose of the present invention is to solve the problems in the background technology and to propose a magnetic separation mechanism for a magnetic separator.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A magnetic separation mechanism of a magnetic separator comprises a frame, the inner wall of the frame is rotatably connected with four evenly distributed lower transmission rollers, the outer walls of the four lower transmission rollers are sleeved with the same lower conveying belt, the inner wall of the frame is rotatably connected with a second shaft rod, the outer wall of the second shaft rod is fixedly connected with two evenly distributed large magnetic rollers, the outer walls of the two large magnetic rollers are sleeved with upper conveying belts, the inner walls of the two upper conveying belts away from the large magnetic rollers are movably connected with the same upper transmission roller, the upper transmission roller is fixedly connected to the inner wall of the frame, two limiting rollers 1 are arranged below the lower conveying belt, the two limiting rollers 1 are fixedly connected to the inner wall of the frame, and limiting rollers 2 are arranged below the two upper conveying belts, and the limiting rollers 2 are fixedly connected to the inner wall of the frame, and also include:

[0009] A stripping mechanism, used to separate small pieces of metal and gravel stuck together on the upper conveyor belt, the stripping mechanism being mounted on the frame;

[0010] A secondary separation mechanism, used for secondary separation of the small segments of metal and gravel stuck together, the secondary separation mechanism being mounted on the second shaft;

[0011] The power-assisting mechanism is used to cooperate with the stripping mechanism to support the gravel accumulated in the concave part of the lower conveyor belt so that it can be removed smoothly;

[0012] And a transmission mechanism, used for cooperating with the stripping mechanism to drive the power-assisting mechanism, wherein the transmission mechanism is installed on the stripping mechanism.

[0013] Preferably, the top outer wall of the frame is fixedly connected with a feed port, the outer wall of the frame is fixedly connected with a conveying motor 1, one of the lower transmission rollers is fixedly connected to the output shaft of the conveying motor 1, the outer wall of the frame on the side away from the conveying motor 1 is fixedly connected with a conveying motor 2, the output shaft of the conveying motor 2 is fixedly connected with a transmission gear 3, the inner wall of the frame is fixedly connected with a receiving plate, and the top outer wall of the frame is fixedly connected with a mounting plate 1.

[0014] Preferably, the secondary separation mechanism comprises a secondary separation belt, a transmission gear 1, a transmission gear 2, a third shaft rod, a receiving belt, a small magnetic roller and two limit plates 2, the third shaft rod is rotatably connected to the inner wall of the lower conveyor belt, one end of the two limit plates 2 are rotatably connected to the second shaft rod, and one end of the two limit plates 2 away from the second shaft rod are fixedly connected to the receiving plate, the receiving belt is located between the two limit plates 2, the receiving belt is sleeved on the outer walls of the second shaft rod and the third shaft rod, the transmission gear 1 is fixedly connected to the second shaft rod, the transmission gear 2 is meshed with the transmission gear 1, the transmission gear 2 is fixedly connected to the small magnetic roller, the outer wall of the limiting roller 2 is fixedly connected with a fixing plate 2, and the end of the fixing plate 2 away from the limiting roller 2 is rotatably connected to the small magnetic roller, the secondary separation belt is sleeved on the outer walls of the small magnetic roller and the upper transmission roller, and the bottoms of the two limit plates 2 are fixedly connected with the same separation limit block.

[0015] Preferably, the peeling mechanism includes a transmission chain, a first bevel gear, a transmission belt, a second bevel gear, two chain gears, two main drive wheels and two first shaft rods, the transmission chain is sleeved on the outer walls of the two chain gears, one of the chain gears is fixedly connected to the second shaft rod, the other chain gear is fixedly connected to the first bevel gear, the first bevel gear is rotatably connected to a mounting plate, the outer wall of the first bevel gear is meshed with the second bevel gear, the transmission belt is sleeved on the outer walls of the two main drive wheels, the second bevel gear is fixedly connected to one end of one of the main drive wheels, and the two main drive wheels are rotatably connected to a mounting plate through the two first shaft rods.

[0016] Preferably, the stripping mechanism also includes a connecting rod five, an arc-shaped push rod, a multi-section telescopic rod and a limiting slide rail one, the connecting rod five is fixedly connected to the outer wall of the transmission belt, the limiting slide rail one is fixedly connected to the outer wall of the frame, one end of the multi-section telescopic rod is fixedly connected to the arc-shaped push rod, the outer wall of the multi-section telescopic rod is slidably connected to the limiting slide rail one, the arc-shaped push rod is rotatably connected to the connecting rod five, and two stripping mechanisms are provided, the two stripping mechanisms are symmetrically distributed, and the outer wall of one chain gear is meshed with the outer wall of the transmission gear three.

[0017] Preferably, the transmission mechanism includes a connecting rod four, a rack plate, a fourth gear and a connecting rod one, one end of the connecting rod four is fixedly connected to the multi-section telescopic rod, one end of the connecting rod four away from the multi-section telescopic rod is fixedly connected to the rack plate, the outer wall of the rack plate is meshed with the fourth gear, the fourth gear is rotatably connected to the outer wall of one of the chain gears, the connecting rod one is fixedly connected to the fourth gear, and two transmission mechanisms are provided, and the two transmission mechanisms are symmetrically distributed.

[0018] Preferably, the inner wall of the frame is fixedly connected to two evenly distributed arc-shaped support plates, the outer wall of the arc-shaped support plate is provided with a slide groove, the power-assisting mechanism comprises a connecting rod three, a first slider, a slider three, a power-assisting baffle and two connecting rods two, the two ends of the two connecting rods two are respectively fixedly connected to the connecting rod one and the first slider, the first slider is slidably connected to the arc-shaped support plate through the slide groove, the slider three is slidably connected to the first slider, the power-assisting baffle is fixedly connected to the slider three, and the connecting rod three is fixedly connected to the end of the slider three away from the power-assisting baffle.

[0019] Preferably, two power-assisting mechanisms are provided, and the two power-assisting mechanisms are symmetrically distributed. The outer wall one-way bearing at one end of the two connecting rods three away from the slider three is connected to the first gear, the outer walls of the two arc-shaped support plates are fixedly connected to the first tooth block group, the outer walls of the two first gears are respectively meshed with the two first tooth block groups, and the outer walls of the two first sliders are fixedly connected to the closed ring.

[0020] Compared with the existing technology, the advantages of the magnetic separation mechanism of this magnetic separator are:

[0021] 1. When the mixture of small metal segments and crushed stones falls on the upper and lower concave parts of the lower conveyor belt, the mixture of crushed stones and small metal segments in the concave part is constantly rolling due to the height difference between the two limit rollers and the concave part, so that the small metal segments are adsorbed on the upper conveyor belt by the large magnetic roller, thereby realizing the separation of small metal segments and crushed stones;

[0022] 2. If there is gravel between the small metal segment and the upper conveyor belt, a part of the small metal segment will bulge, the second shaft rod drives the sprocket wheel assembly to rotate, the sprocket wheel assembly drives the second bevel gear to rotate through the first bevel gear, and the second bevel gear drives the pulley assembly to rotate, so that the arc push rod and the connecting rod 5 move with the pulley assembly, and the distance between the arc push rod and the upper conveyor belt is set to allow the small metal segment to pass through. If there is gravel, the small metal segment will not pass through and will be pushed down by the arc push rod, thereby performing a secondary separation step;

[0023] 3. When the small metal segments and gravel are pushed down by the arc push rod, the gravel and the small metal segments will be separated again due to the effect of free fall. The small metal segments are attracted by the small magnetic roller and fall onto the receiving belt through the secondary separation belt, but the gravel will fall directly. Due to the effect of the separation limit block, the gravel will fall on both sides of the separation limit block.

[0024] 4. When the arc push rod moves upward with the pulley assembly, the connecting rod 4 also moves up with the rack plate to drive the fourth gear to rotate, and then the fourth gear drives the first slider to slide along the slide groove to the end through the connecting rod 1. At this time, the crushed stone has been pushed down by the arc push rod, so that the crushed stone is pushed up by the power baffle and moves from the concave part to the horizontal part, so that it is transported by the lower conveyor belt;

[0025] In summary, the present invention sets a stripping mechanism so that when gravel is clamped between a small segment of metal and the belt, the stripping mechanism can make the small segment of metal and the gravel leave the upper conveying belt, so that it performs a period of free fall, and then the small segment of metal is attracted by the small magnetic roller again for secondary separation. At the same time, the stripping mechanism cooperates with the transmission mechanism so that the gravel that is constantly rolling in the concave part can be pushed out, thereby avoiding the situation where the small segment of metal is attracted by the magnetic force at the bending part and thus clamps the gravel. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention.

[0027] Figure 2 It is a schematic diagram of the interior of the frame after a portion of the upper conveyor belt is removed according to the present invention.

[0028] Figure 3 It is a structural schematic diagram of the second conveying motor of the present invention.

[0029] Figure 4 It is a structural schematic diagram of the peeling mechanism of the present invention.

[0030] Figure 5 The present invention Figure 2 Schematic diagram of the local enlarged structure at point A in the middle.

[0031] Figure 6 It is a structural schematic diagram of the separation limit block of the present invention.

[0032] Figure 7 It is a structural schematic diagram of the transmission mechanism of the present invention.

[0033] Figure 8 The present invention Figure 7 Schematic diagram of the local enlarged structure at point B in the middle.

[0034] Fig. 9 It is a schematic diagram of the structure of the power assist mechanism of the present invention.

[0035] In the figure: 1. Conveying motor 1; 2. Feeding port; 3. Lower conveying belt; 4. Upper conveying belt; 5. Secondary separation belt; 6. Undertaking plate; 7. Connecting rod 1; 8. Closed ring; 901. Transmission chain; 902. Chain gear; 10. First bevel gear; 11. Mounting plate 1; 12. First shaft rod; 13. Second bevel gear; 140. Transmission belt; 141. Main transmission wheel; 15. Limiting slide rail 1; 16. First gear block group; 17. First gear; 18. First slider; 19. Connecting rod 2; 20. Connecting rod 3; 21. Slider 3; 22. Conveying motor 2; 23. Frame; 24. Undertaking belt; 25. Connecting rod 4; 26 , multi-section telescopic rod; 27, connecting rod five; 28, arc-shaped push rod; 29, limit roller one; 30, slide groove; 31, upper transmission roller; 32, lower transmission roller; 33, large magnetic roller; 34, small magnetic roller; 35, limit plate two; 36, second shaft rod; 37, separation limit block; 38, power-assisting baffle; 39, transmission gear one; 40, transmission gear two; 41, fixed plate two; 42, third shaft rod; 43, limit roller two; 44, arc-shaped support plate; 45, fourth gear; 46, rack plate; 47, transmission gear three; 101, peeling mechanism; 202, power-assisting mechanism; 303, secondary separation mechanism; 404, transmission mechanism. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0037] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0038] Reference Figure 1-Figure 9, a magnetic separation mechanism of a magnetic separator, including a frame 23, the inner wall of the frame 23 is rotatably connected with four evenly distributed lower transmission rollers 32, the outer walls of the four lower transmission rollers 32 are sleeved with the same lower conveying belt 3, the inner wall of the frame 23 is rotatably connected with a second shaft rod 36, the outer wall of the second shaft rod 36 is fixedly connected with two evenly distributed large magnetic rollers 33, the outer walls of the two large magnetic rollers 33 are sleeved with upper conveying belts 4, the inner walls of the two upper conveying belts 4 away from the large magnetic rollers 33 are movably connected with the same upper transmission roller 31, the upper transmission roller 31 is fixedly connected to the inner wall of the frame 23, two limiting rollers 29 are arranged below the lower conveying belt 3, the two limiting rollers 29 are fixedly connected to the inner wall of the frame 23, and the limiting rollers 43 are arranged below the two upper conveying belts 4, and the limiting rollers 43 are fixedly connected to the inner wall of the frame 23, and also include:

[0039] A stripping mechanism 101, used to separate small pieces of metal and gravel stuck together on the upper conveyor belt 4, and the stripping mechanism 101 is installed on the frame 23;

[0040] A secondary separation mechanism 303 is used for secondary separation of the small pieces of metal and gravel stuck together, and the secondary separation mechanism 303 is installed on the second shaft 36;

[0041] The assist mechanism 202 is used to cooperate with the stripping mechanism 101 to support the gravel accumulated at the concave part of the lower conveyor belt 3 so that it can be smoothly removed;

[0042] And the transmission mechanism 404 is used to cooperate with the peeling mechanism 101 to drive the power-assisting mechanism 202 , and the transmission mechanism 404 is installed on the peeling mechanism 101 .

[0043] Among them, the top outer wall of the frame 23 is fixedly connected with the feed port 2, the outer wall of the frame 23 is fixedly connected with the conveying motor 1, one of the lower transmission rollers 32 is fixedly connected with the output shaft of the conveying motor 1, the outer wall of the frame 23 on the side away from the conveying motor 1 is fixedly connected with the conveying motor 22, the output shaft of the conveying motor 22 is fixedly connected with the transmission gear 3 47, the inner wall of the frame 23 is fixedly connected with the receiving plate 6, and the top outer wall of the frame 23 is fixedly connected with the mounting plate 11.

[0044] In this embodiment, as shown in the attached Figure 1-3As shown: when in use, the mixed small segments of metal and crushed stone pass through the feed port 2, which is intermittently loaded, and fall on the lower conveyor belt 3. The conveying motor 1 rotates to make the lower conveyor belt 3 convey the mixture toward the receiving plate 6. When the small segments of metal and crushed stone mixture falls on the concave part of the lower conveyor belt 3, due to the height difference formed by the two limiting rollers 29 and the concave part, the mixture of crushed stone and small segments of metal in the concave part is constantly rolling, so that the small segments of metal can be adsorbed on the surface of the upper conveyor belt 4 by the large magnetic roller 33, while impurities such as crushed stone remain in the concave part of the lower conveyor belt 3, thereby realizing the separation of small segments of metal and crushed stone. At the same time, the conveying motor 22 rotates through the transmission gear 3 47 and the chain gear 902 to engage, so that the second shaft 36 drives the two upper conveyor belts 4 to convey the small segments of metal toward the receiving plate 6.

[0045] Among them, the peeling mechanism 101 includes a transmission chain 901, a first bevel gear 10, a transmission belt 140, a second bevel gear 13, two chain gears 902, two main drive wheels 141 and two first shafts 12, the transmission chain 901 is sleeved on the outer walls of the two chain gears 902, one of the chain gears 902 is fixedly connected to the second shaft 36, the other chain gear 902 is fixedly connected to the first bevel gear 10, the first bevel gear 10 is rotatably connected to the mounting plate 11, the outer wall of the first bevel gear 10 is meshed with the second bevel gear 13, the transmission belt 140 is sleeved on the outer walls of the two main drive wheels 141, the second bevel gear 13 is fixedly connected to one end of one of the main drive wheels 141, and the two main drive wheels 141 are both rotatably connected to the mounting plate 11 through the two first shafts 12.

[0046] Among them, the peeling mechanism 101 also includes a connecting rod 5 27, an arc-shaped push rod 28, a multi-section telescopic rod 26 and a limiting slide rail 15. The connecting rod 5 27 is fixedly connected to the outer wall of the transmission belt 140, the limiting slide rail 15 is fixedly connected to the outer wall of the frame 23, one end of the multi-section telescopic rod 26 is fixedly connected to the arc-shaped push rod 28, the outer wall of the multi-section telescopic rod 26 is slidingly connected to the limiting slide rail 15, the arc-shaped push rod 28 is rotatably connected to the connecting rod 5 27, and two peeling mechanisms 101 are provided, and the two peeling mechanisms 101 are symmetrically distributed, and the outer wall of one chain gear 902 is meshed with the outer wall of the transmission gear three 47.

[0047] In this embodiment, if Figure 3 and Figure 4As shown: Under normal circumstances, the small metal segment and the upper conveyor belt 4 should be in close contact. If there is gravel between the small metal segment and the upper conveyor belt 4, the small metal segment will bulge or tilt a part, and the second shaft rod 36 can be rotated by the chain gear 902 and the transmission chain 901. The chain gear 902 and the transmission chain 901 drive the second bevel gear 13 to rotate through the first bevel gear 10, and the second bevel gear 13 drives the transmission belt 140 and the main transmission wheel 141 to rotate, so that the arc push rod 28 and the connecting rod 5 27 rotate along with the transmission belt 140. The distance between the arc push rod 28 and the upper conveyor belt 4 is set to allow small sections of metal to pass through. If there are gravel, the small sections of metal will not pass through and will be pushed down by the arc push rod 28, thereby performing a secondary separation step. When the arc push rod 28 moves close to the secondary separation belt 5, the arc push rod 28 can push down small sections of metal and gravel. When the arc push rod 28 moves away from the secondary separation belt 5, it moves upward with the rotation of the transmission belt 140 and will not contact it. The range of the arc push rod 28 covering the upper conveyor belt 4 is set to be sufficient for the arc push rod 28 to make one round trip.

[0048] Among them, the secondary separation mechanism 303 includes a secondary separation belt 5, a transmission gear 1 39, a transmission gear 2 40, a third shaft 42, a receiving belt 24, a small magnetic roller 34 and two limit plates 2 35, the third shaft 42 is rotatably connected to the inner wall of the lower conveyor belt 3, one end of the two limit plates 2 35 is rotatably connected to the second shaft 36, and the ends of the two limit plates 2 35 away from the second shaft 36 are fixedly connected to the receiving plate 6, the receiving belt 24 is located between the two limit plates 2 35, and the receiving belt 24 is sleeved on the second shaft 3 6 and the outer wall of the third shaft rod 42, the transmission gear 1 39 is fixedly connected to the second shaft rod 36, the transmission gear 2 40 is meshed with the transmission gear 1 39, the transmission gear 2 40 is fixedly connected to the small magnetic roller 34, the outer wall of the limiting roller 2 43 is fixedly connected with a fixing plate 2 41, and the end of the fixing plate 2 41 away from the limiting roller 2 43 is rotatably connected to the small magnetic roller 34, the secondary separation belt 5 is sleeved on the outer walls of the small magnetic roller 34 and the upper transmission roller 31, and the bottoms of the two limiting plates 2 35 are fixedly connected with the same separation limiting block 37.

[0049] In this embodiment, if Figure 5 and Figure 6 As shown: when the small segments of metal and gravel are pushed down by the arc push rod 28, due to the effect of free fall, the gravel and the small segments of metal will be separated again, and the small segments of metal will be attracted by the small magnetic roller 34. At this time, the second shaft 36 will drive the transmission gear 1 39 and the large magnetic roller 33 to rotate counterclockwise. Due to the effect of the transmission gear 2 40, the small magnetic roller 34 will drive the secondary separation belt 5 to rotate clockwise. The small segments of metal are attracted by the small magnetic roller 34 and fall on the receiving belt 24 through the secondary separation belt 5. The gravel will fall directly, thereby realizing the secondary separation.

[0050] Among them, the transmission mechanism 404 includes a connecting rod four 25, a rack plate 46, a fourth gear 45 and a connecting rod one 7. One end of the connecting rod four 25 is fixedly connected to the multi-section telescopic rod 26, and the end of the connecting rod four 25 away from the multi-section telescopic rod 26 is fixedly connected to the rack plate 46. The outer wall of the rack plate 46 is meshed with the fourth gear 45. The fourth gear 45 is rotatably connected to the outer wall of one of the chain gears 902. The connecting rod one 7 is fixedly connected to the fourth gear 45. Two transmission mechanisms 404 are provided, and the two transmission mechanisms 404 are symmetrically distributed.

[0051] Among them, the inner wall of the frame 23 is fixedly connected to two evenly distributed arc support plates 44, the outer wall of the arc support plate 44 is provided with a slide groove 30, the power-assisting mechanism 202 includes a connecting rod three 20, a first slider 18, a slider three 21, a power-assisting baffle 38 and two connecting rods two 19, the two ends of the two connecting rods two 19 are respectively fixedly connected to the connecting rod one 7 and the first slider 18, the first slider 18 is slidably connected to the arc support plate 44 through the slide groove 30, the slider three 21 is slidably connected to the first slider 18, the power-assisting baffle 38 is fixedly connected to the slider three 21, and the connecting rod three 20 is fixedly connected to the end of the slider three 21 away from the power-assisting baffle 38.

[0052] Among them, two power-assisting mechanisms 202 are provided, and the two power-assisting mechanisms 202 are symmetrically distributed. The outer wall one-way bearing of one end of the two connecting rods three 20 away from the slider three 21 is connected to the first gear 17, the outer walls of the two arc-shaped support plates 44 are fixedly connected to the first tooth block group 16, the outer walls of the two first gears 17 are respectively meshed with the two first tooth block groups 16, and the outer walls of the two first sliders 18 are fixedly connected to the closed ring 8.

[0053] In this embodiment, if Figure 7-9As shown in the figure: due to the action of the separation limit block 37, the crushed stone will fall on both sides of the separation limit block 37. When the arc push rod 28 moves up with the transmission belt 140, the connecting rod 425 also moves up with the rack plate 46 to drive the fourth gear 45 to rotate. Then the fourth gear 45 drives the first slider 18 to slide along the slide groove 30 to the end through the connecting rod 17. At this time, the crushed stone has been pushed down by the arc push rod 28, so that the crushed stone in the concave part of the lower conveyor belt 3 is pushed up by the power-assisting baffle 38. At this time, the arc push rod 28 moves horizontally with the transmission belt 140 in the direction of the connecting rod 425. At this time, the power-assisting baffle 38 will It stays at the end of the slide groove 30, which is convenient for the crushed stone to move from the concave part of the lower conveyor belt 3 to the horizontal part so as to be transported away by the lower conveyor belt 3. When the arc push rod 28 moves downward with the rotation of the transmission belt 140, since the first gear 17 is connected by a one-way bearing, the first gear 17 will move around the first tooth block group 16 at this time, so that the slider three 21 moves up. That is to say, when the fourth gear 45 brings the connecting rod 7 to reset, the power baffle 38 will move up and will not push the crushed stone. In this way, when the small segment of metal is stuck with the crushed stone, it can be separated for the second time, which promotes the more thorough extraction of the small segment of metal.

[0054] The specific working principle and method of use of the present invention are explained in detail below: Figure 1-3 As shown: when in use, the mixed small segments of metal and crushed stone pass through the feed port 2, which is intermittently loaded, and fall on the lower conveyor belt 3. The conveying motor 1 rotates to make the lower conveyor belt 3 convey the mixture toward the receiving plate 6. When the small segments of metal and crushed stone mixture falls on the concave part of the lower conveyor belt 3, due to the height difference formed by the two limiting rollers 29 and the concave part, the mixture of crushed stone and small segments of metal in the concave part is constantly rolling, so that the small segments of metal can be adsorbed on the surface of the upper conveyor belt 4 by the large magnetic roller 33, while impurities such as crushed stone remain in the concave part of the lower conveyor belt 3, thereby realizing the separation of small segments of metal and crushed stone. At the same time, the conveying motor 22 rotates through the transmission gear 3 47 and the chain gear 902 to engage, so that the second shaft 36 drives the two upper conveyor belts 4 to convey the small segments of metal toward the receiving plate 6.

[0055] like Figure 3 and Figure 4As shown: Under normal circumstances, the small metal segment and the upper conveyor belt 4 should be in close contact. If there is gravel between the small metal segment and the upper conveyor belt 4, the small metal segment will bulge or tilt a part, and the second shaft rod 36 can be rotated by the chain gear 902 and the transmission chain 901. The chain gear 902 and the transmission chain 901 drive the second bevel gear 13 to rotate through the first bevel gear 10, and the second bevel gear 13 drives the transmission belt 140 and the main transmission wheel 141 to rotate, so that the arc push rod 28 and the connecting rod 5 27 rotate along with the transmission belt 140. The distance between the arc push rod 28 and the upper conveyor belt 4 is set to allow small sections of metal to pass through. If there are gravel, the small sections of metal will not pass through and will be pushed down by the arc push rod 28, thereby performing a secondary separation step. When the arc push rod 28 moves close to the secondary separation belt 5, the arc push rod 28 can push down small sections of metal and gravel. When the arc push rod 28 moves away from the secondary separation belt 5, it moves upward with the rotation of the transmission belt 140 and will not contact it. The range of the arc push rod 28 covering the upper conveyor belt 4 is set to be sufficient for the arc push rod 28 to make one round trip.

[0056] like Figure 5 and Figure 6 As shown: when the small segments of metal and gravel are pushed down by the arc push rod 28, due to the effect of free fall, the gravel and the small segments of metal will be separated again, and the small segments of metal will be attracted by the small magnetic roller 34. At this time, the second shaft 36 will drive the transmission gear 1 39 and the large magnetic roller 33 to rotate counterclockwise. Due to the effect of the transmission gear 2 40, the small magnetic roller 34 will drive the secondary separation belt 5 to rotate clockwise. The small segments of metal are attracted by the small magnetic roller 34 and fall on the receiving belt 24 through the secondary separation belt 5. The gravel will fall directly, thereby realizing the secondary separation.

[0057] like Figure 7-9As shown in the figure: due to the action of the separation limit block 37, the crushed stone will fall on both sides of the separation limit block 37. When the arc push rod 28 moves up with the transmission belt 140, the connecting rod 425 also moves up with the rack plate 46 to drive the fourth gear 45 to rotate. Then the fourth gear 45 drives the first slider 18 to slide along the slide groove 30 to the end through the connecting rod 17. At this time, the crushed stone has been pushed down by the arc push rod 28, so that the crushed stone in the concave part of the lower conveyor belt 3 is pushed up by the power-assisting baffle 38. At this time, the arc push rod 28 moves horizontally with the transmission belt 140 in the direction of the connecting rod 425. At this time, the power-assisting baffle 38 will It stays at the end of the slide groove 30, which is convenient for the crushed stone to move from the concave part of the lower conveyor belt 3 to the horizontal part so as to be transported away by the lower conveyor belt 3. When the arc push rod 28 moves downward with the rotation of the transmission belt 140, since the first gear 17 is connected by a one-way bearing, the first gear 17 will move around the first tooth block group 16 at this time, so that the slider three 21 moves up. That is to say, when the fourth gear 45 brings the connecting rod 7 to reset, the power baffle 38 will move up and will not push the crushed stone. In this way, when the small segment of metal is stuck with the crushed stone, it can be separated for the second time, which promotes the more thorough extraction of the small segment of metal.

[0058] It is further explained that the above-mentioned fixed connection should be understood in a broad sense unless otherwise clearly specified and limited. For example, it can be welding, gluing, or one-piece molding, etc., which are conventional means well known to those skilled in the art.

[0059] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A magnetic separation mechanism of a magnetic separator, comprising a frame (23), the inner wall of the frame (23) being rotatably connected to four evenly distributed lower transmission rollers (32), the outer walls of the four lower transmission rollers (32) being sleeved with a same lower conveying belt (3), the inner wall of the frame (23) being rotatably connected to a second shaft (36), the outer wall of the second shaft (36) being fixedly connected to two evenly distributed large magnetic rollers (33), the outer walls of the two large magnetic rollers (33) being sleeved with an upper conveying belt (4), the two upper conveying belts The inner wall of one end of the belt (4) away from the large magnetic roller (33) is movably connected to the same upper transmission roller (31), and the upper transmission roller (31) is fixedly connected to the inner wall of the frame (23). Two limiting rollers (29) are arranged below the lower conveying belt (3), and the two limiting rollers (29) are fixedly connected to the inner wall of the frame (23). Limiting rollers (43) are arranged below the two upper conveying belts (4), and the limiting rollers (43) are fixedly connected to the inner wall of the frame (23), characterized in that: Also includes: A stripping mechanism (101) for separating small pieces of metal and gravel stuck together on the upper conveyor belt (4), wherein the stripping mechanism (101) is mounted on the frame (23); A secondary separation mechanism (303) is used for performing secondary separation on the small pieces of metal and gravel stuck together, and the secondary separation mechanism (303) is mounted on the second shaft (36); The assist mechanism (202) is used to cooperate with the stripping mechanism (101) to support the gravel accumulated at the concave portion of the lower conveyor belt (3) so that it can be smoothly removed; and a transmission mechanism (404) for cooperating with the peeling mechanism (101) to drive the assisting mechanism (202); the transmission mechanism (404) is mounted on the peeling mechanism (101).

2. The magnetic separation mechanism of a magnetic separator according to claim 1, characterized in that: The top outer wall of the frame (23) is fixedly connected to a feed port (2), the outer wall of the frame (23) is fixedly connected to a conveying motor (1), one of the lower transmission rollers (32) is fixedly connected to the output shaft of the conveying motor (1), the outer wall of the frame (23) on a side away from the conveying motor (1) is fixedly connected to a conveying motor (22), the output shaft of the conveying motor (22) is fixedly connected to a transmission gear (47), the inner wall of the frame (23) is fixedly connected to a receiving plate (6), and the top outer wall of the frame (23) is fixedly connected to a mounting plate (11).

3. The magnetic separation mechanism of a magnetic separator according to claim 2, characterized in that: The secondary separation mechanism (303) comprises a secondary separation belt (5), a transmission gear 1 (39), a transmission gear 2 (40), a third shaft (42), a receiving belt (24), a small magnetic roller (34) and two second limiting plates (35), wherein the third shaft (42) is rotatably connected to the inner wall of the lower conveying belt (3), one end of the two second limiting plates (35) is rotatably connected to the second shaft (36), one end of the two second limiting plates (35) away from the second shaft (36) is fixedly connected to the receiving plate (6), the receiving belt (24) is located between the two second limiting plates (35), and the receiving belt (24) is sleeved between the second shaft (36) and the third shaft (42). The outer wall of the three-axis rod (42), the transmission gear 1 (39) is fixedly connected to the second axis rod (36), the transmission gear 2 (40) is meshed with the transmission gear 1 (39), the transmission gear 2 (40) is fixedly connected to the small magnetic roller (34), the outer wall of the limiting roller 2 (43) is fixedly connected with a fixing plate 2 (41), one end of the fixing plate 2 (41) away from the limiting roller 2 (43) is rotatably connected to the small magnetic roller (34), the secondary separation belt (5) is sleeved on the outer walls of the small magnetic roller (34) and the upper transmission roller (31), and the bottoms of the two limiting plates 2 (35) are fixedly connected with the same separation limiting block (37).

4. The magnetic separation mechanism of a magnetic separator according to claim 3, characterized in that: The stripping mechanism (101) comprises a transmission chain (901), a first bevel gear (10), a transmission belt (140), a second bevel gear (13), two chain gears (902), two main transmission wheels (141) and two first shafts (12); the transmission chain (901) is sleeved on the outer walls of the two chain gears (902); one of the chain gears (902) is fixedly connected to the second shaft (36); the other chain gear (902) is fixedly connected to the first bevel gear (10); the first bevel gear (10) is rotationally connected to the first mounting plate (11); the outer wall of the first bevel gear (10) is meshed with the second bevel gear (13); the transmission belt (140) is sleeved on the outer walls of the two main transmission wheels (141); the second bevel gear (13) is fixedly connected to one end of one of the main transmission wheels (141); and the two main transmission wheels (141) are rotationally connected to the first mounting plate (11) via the two first shafts (12).

5. The magnetic separation mechanism of a magnetic separator according to claim 4, characterized in that: The stripping mechanism (101) further comprises a connecting rod (27), an arc-shaped push rod (28), a multi-section telescopic rod (26) and a limiting slide rail (15), wherein the connecting rod (27) is fixedly connected to the outer wall of the transmission belt (140), the limiting slide rail (15) is fixedly connected to the outer wall of the frame (23), one end of the multi-section telescopic rod (26) is fixedly connected to the arc-shaped push rod (28), the outer wall of the multi-section telescopic rod (26) is slidably connected to the limiting slide rail (15), and the arc-shaped push rod (28) is rotatably connected to the connecting rod (27), and two stripping mechanisms (101) are provided, and the two stripping mechanisms (101) are symmetrically distributed, and the outer wall of one of the chain gears (902) is meshed with the outer wall of the transmission gear (47).

6. The magnetic separation mechanism of a magnetic separator according to claim 5, characterized in that: The transmission mechanism (404) comprises a connecting rod four (25), a rack plate (46), a fourth gear (45) and a connecting rod one (7); one end of the connecting rod four (25) is fixedly connected to the multi-section telescopic rod (26); one end of the connecting rod four (25) away from the multi-section telescopic rod (26) is fixedly connected to the rack plate (46); the outer wall of the rack plate (46) is meshed with the fourth gear (45); the fourth gear (45) is rotatably connected to the outer wall of one of the chain gears (902); the connecting rod one (7) is fixedly connected to the fourth gear (45); two transmission mechanisms (404) are provided, and the two transmission mechanisms (404) are symmetrically distributed.

7. The magnetic separation mechanism of a magnetic separator according to claim 6, characterized in that: The inner wall of the frame (23) is fixedly connected to two evenly distributed arc-shaped support plates (44), and the outer wall of the arc-shaped support plate (44) is provided with a slide groove (30). The power-assisting mechanism (202) comprises a connecting rod three (20), a first slider (18), a slider three (21), a power-assisting baffle (38) and two connecting rods two (19), and the two ends of the two connecting rods two (19) are respectively fixedly connected to the connecting rod one (7) and the first slider (18), the first slider (18) is slidably connected to the arc-shaped support plate (44) through the slide groove (30), the slider three (21) is slidably connected to the first slider (18), the power-assisting baffle (38) is fixedly connected to the slider three (21), and the connecting rod three (20) is fixedly connected to the end of the slider three (21) away from the power-assisting baffle (38).

8. The magnetic separation mechanism of a magnetic separator according to claim 7, characterized in that: Two of the power-assisting mechanisms (202) are provided, and the two power-assisting mechanisms (202) are symmetrically distributed; the outer walls of the ends of the two connecting rods (20) away from the sliders (21) are connected to the first gears (17) by one-way bearings; the outer walls of the two arc-shaped support plates (44) are fixedly connected to the first tooth block groups (16); the outer walls of the two first gears (17) are respectively meshed with the two first tooth block groups (16); and the outer walls of the two first sliders (18) are fixedly connected to the closed rings (8).

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