Rare earth metal alloy on-line detecting and sorting device

Abstract

The invention discloses a rare earth metal alloy on-line detecting and sorting device, and relates to the technical field of detecting and sorting, the rare earth metal alloy on-line detecting and sorting device comprises a conveying part, a first frame body and a second frame body are arranged above the conveying part, a first mounting frame is arranged in the first frame body, and a pressing roller is rotatably mounted in the first mounting frame; a height detection mechanism is arranged in the second frame body and used for detecting the height of the rare earth alloy ore to be pressed and adjusting the height of the pressing detection mechanism according to the height of the rare earth alloy ore, so that the pressing force of the pressing detection mechanism on the rare earth alloy ore with different heights is kept the same; a screening mechanism is arranged on the rear side of the conveying piece and used for separating the crushed rare earth alloy ore from the intact rare earth alloy ore. The pressing detection mechanism can be ensured to apply the same pressing force to the rare earth alloy ores with different heights.

Description

Technical Field

[0001] The present invention relates to the technical field of detection and sorting, and in particular to an online detection and sorting device for rare earth metal alloys. Background Art

[0002] In the process of mining rare earth alloy ores such as monazite and bastnaesite, the mined ore needs to be crushed into blocks first, and then the block ore is collected and transported to the sorting unit for sorting.

[0003] After the rare earth alloy ore is mined, it needs to be further sorted. During the sorting, the rare earth alloy ore is usually preliminarily screened with a color sorter to remove the obvious non-ferrous metal blocks contained in the rare earth alloy ore, and then the remaining rare earth alloy ore is further tested and sorted; hardness testing can directly reflect the main component content of the rare earth alloy ore, and is usually an important part of the detection and classification of rare earth alloy ore; and the existing hardness test is usually to test the hardness of the rare earth alloy ore by directly pressing the rare earth alloy ore with a pressure plate; during the test, due to the differences in height and size of different rare earth alloy ores, and the transportation of the ore is basically continuous transportation by a conveying device, the traditional pressure means of hardness testing is difficult to match this continuous transportation method. Summary of the invention

[0004] The object of the present invention is to provide an online detection and sorting device for rare earth metal alloys to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: an online detection and sorting device for rare earth metal alloys, comprising a conveying member, a frame body 1 and a frame body 2 are arranged above the conveying member, a first mounting frame is arranged in the frame body 1, and a pressing roller is rotatably installed in the first mounting frame; A pressing detection mechanism is provided in the frame body 1, and the pressing detection mechanism is used to detect the hardness of the rare earth alloy ore by driving the pressing roller to elastically press the rare earth alloy ore on the conveying member; A height detection mechanism is provided in the frame body 2, and the height detection mechanism is used to detect the height of the rare earth alloy ore to be pressed and adjust the height of the pressing detection mechanism according to the height of the rare earth alloy ore, so that the pressing force of the pressing detection mechanism on the rare earth alloy ores of different heights remains the same; A screening mechanism is provided at the rear side of the conveying member, and the screening mechanism is used to separate the crushed rare earth alloy ore from the intact rare earth alloy ore.

[0006] Preferably, the pressing detection mechanism includes a first fixing block located inside the first frame; first sliding rods are symmetrically and fixedly connected to the left and right sides inside the first frame, and both of the first sliding rods are slidably connected to the first fixing block; the first mounting frame is located directly below the first fixing block and three second sliding rods are fixedly connected to the first mounting frame, and all of the three second sliding rods are slidably connected to the first fixing block; an elastic member I is sleeved on the second sliding rod at the middle position, and the upper and lower ends of the elastic member I are respectively fixedly connected to the first fixing block and the first mounting frame.

[0007] Preferably, the height detection mechanism includes a first fixing frame fixedly connected to the second frame; a second mounting frame is provided at the bottom of the first fixing frame, and the second mounting frame is slidably connected to the first fixing frame; a detection roller is rotatably mounted inside the second mounting frame, the detection roller has the same size as the pressing roller and both are in contact with the conveying member; the detection roller is made of lightweight hard plastic; a limiting mechanism is provided on the first fixing frame, and the limiting mechanism is used to limit the upward movement of the first fixing block; an adjusting mechanism is provided on the first fixing frame, and the adjusting mechanism is used to adjust the upper limit position of the limiting mechanism according to the degree of upward movement of the second mounting frame when the second mounting frame moves upward.

[0008] Preferably, the limiting mechanism includes a limiting frame, first ratchets are symmetrically and rotatably connected to the left and right sides of the limiting frame, a threaded rod is fixedly connected to the upper end of the first ratchet, the upper end of the threaded rod penetrates through the first fixing frame and the threaded rod is threadedly connected to the first fixing frame; a limiting plate is provided at the bottom of the limiting frame, the limiting plate is in contact with the limiting frame and the limiting plate is fixedly connected to the first fixing block.

[0009] Preferably, the adjusting mechanism includes a gear and a rack, the rack is fixedly connected to the first fixing frame and the gear is rotatably connected to the limiting frame, and the rack is meshed with the gear; a self-locking mechanism is provided on the gear, and the self-locking mechanism is used to lock the gear unidirectionally so that the gear cannot move upward relative to the rack; an unlocking mechanism is provided on the second mounting frame, and the unlocking mechanism is used to unlock the unidirectionally locked gear when the second mounting frame moves upward.

[0010] Preferably, the self-locking mechanism includes two second ratchets symmetrically distributed on the left and right sides of the gear and both of the second ratchets are coaxially fixedly connected to the gear; a second fixing frame is provided at the outer end of the second ratchet, and the second fixing frame is fixedly connected to the limiting frame; four second pawls are provided on the second fixing frame, and all of the four second pawls are meshed with the second ratchet; a first slider is fixedly connected to the second pawl, the first slider is slidably connected to the second fixing frame and an elastic member II is fixedly connected to the first slider, and the other end of the elastic member II is fixedly connected to the second fixing frame.

[0011] Preferably, the unlocking mechanism includes two second fixing blocks which are respectively located on the left and right sides of the second fixing frames on the left and right; four first connecting rods are rotatably connected to the second fixing blocks, and the other ends of the four first connecting rods are respectively rotatably connected to four first sliders; a connecting rod is arranged at the outer side position of the second fixing block, the connecting rod is fixedly connected to the limiting frame and is slidably connected to the first fixing frame; a push rod is arranged at the bottom position of the connecting rod, and the push rod is fixedly connected to the second mounting frame; a push block is arranged between the push rod and the connecting rod, and the push block is fixedly connected to the second fixing block.

[0012] Preferably, the threaded rod does not have self-locking property; a third sliding rod is arranged between the two first ratchets on the limiting frame, the third sliding rod penetrates through the limiting frame and is slidably connected to the limiting frame; second connecting rods are symmetrically and rotatably connected to the left and right sides of the upper end of the third sliding rod, a first ratchet pawl is rotatably connected to one end of the second connecting rod close to the first ratchet, and the first ratchet pawl is engaged with the first ratchet; the first ratchet pawl is slidably connected to the limiting frame and a third spring is sleeved on the first ratchet pawl, one end of the third spring is fixedly connected to the first ratchet pawl and the other end is fixedly connected to the limiting frame.

[0013] Preferably, the screening mechanism includes a screen which is located at the rear end position of the conveying member and the screen is fixedly connected to the guardrails at both ends of the conveying member; the screen is in an inclined shape with the front end higher than the rear end.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: In this application, the detection and execution member is set as a pressing roller. On the one hand, it can perform continuous detection by matching the conveyor belt and cooperate with the screening mechanism to sort out the ores with lower hardness; at the same time, when the pressing roller is detecting, its ideal contact with the ore is line contact, different from the detection of the plate-shaped execution member, the actual contact area between the pressing roller and the ore is smaller, and the required crushing force is also smaller, that is, the overall strength requirement for the device is lower.

[0015] This application utilizes the cooperation of the self-locking mechanism and the unlocking mechanism in the height detection mechanism to realize the self-locking action initiated by the detection roller and realize the unlocking action marked by the end of the detection by the pressing roller; at the same time, the self-locking mechanism has the function of maintaining to make up for the time difference between the detection roller and the pressing roller contacting the ore, so as to ensure the matching degree of the height detection and the hardness detection, and enable this application to maintain the balance of detection on the ore conveyor line with height differences. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the overall structural schematic diagram of the present invention; Figure 2 is the rear structural schematic diagram of the present invention; Figure 3Schematic diagram of the splitting structure of the present invention; Figure 4 Schematic diagram of the structure of the height detection mechanism in the present invention; Figure 5 Schematic diagram of the splitting structure of the height detection mechanism in the present invention; Figure 6 Schematic diagram of the structure of the self-locking mechanism in the present invention; Figure 7 Schematic diagram of the structure of the limit frame in the present invention; Figure 8 Schematic diagram of the structure of the pressing detection mechanism in the present invention; Figure 9 Schematic diagram of the process of detecting ore in the present invention.

[0017] In the drawings, the components represented by the respective reference numerals are as follows: 1. Conveyor; 2. First frame; 3. Second frame; 4. First mounting frame; 5. Pressing roller; 6. First fixing block; 7. First sliding rod; 8. Second sliding rod; 9. First elastic member; 10. First fixing frame; 11. Second mounting frame; 12. Detection roller; 13. Limit frame; 14. First ratchet; 15. Threaded rod; 16. Limit plate; 17. Gear; 18. Rack; 19. Second ratchet; 20. Second fixing frame; 21. Second pawl; 22. First slider; 23. Second elastic member; 24. Second fixing block; 25. First connecting rod; 26. Connecting rod; 27. Push rod; 28. Push block; 29. Third sliding rod; 30. Second connecting rod; 31. First pawl; 32. Third spring; 33. Screen. Detailed implementation manners

[0018] Please refer to Figures 1-9 , the present invention provides a technical solution: An on-line detection and sorting device for rare earth metal alloys, including a conveyor 1, above which there are a first frame 2 and a second frame 3. Inside the first frame 2, there is a first mounting frame 4, and a pressing roller 5 is rotatably installed inside the first mounting frame 4; Inside the first frame 2, there is a pressing detection mechanism, which is used to elastically press the rare earth alloy ore mixture on the conveyor 1 through the driving of the pressing roller 5 so as to break a part of the mixture; The pressing detection mechanism includes first sliding rods 7 symmetrically and fixedly distributed on both sides of the first frame 2; a first fixing block 6 is slidably arranged at the lower ends of the two first sliding rods 7 together, and the first fixing block 6 can be locked with the first sliding rods 7; a first mounting frame 4 is elastically and slidably arranged below the first fixing block 6 (the elastic sliding pair at this position is composed of a first elastic member 9 and a plurality of second sliding rods 8, wherein the upper and lower ends of the first elastic member 9 are respectively fixed to the first fixing block 6 and the first mounting frame 4); A height detection mechanism is provided in the frame 2 3, and the height detection mechanism adjusts the height of the pressing detection mechanism according to the height of the rare earth alloy ore to be pressed, so that the pressing detection mechanism can maintain the same pressing force for rare earth alloy ores of different heights; A screening mechanism is provided at the rear side of the conveyor 1, and the screening mechanism is used to separate the crushed rare earth alloy ore from the intact rare earth alloy ore; The mined rare earth alloy raw materials need to be crushed into fragments of the same specifications by a crusher. In fact, the smaller the crushing specifications, the smaller the force area of ​​a single raw material during testing, and the easier it is to crush. Taking monazite as an example, its Mohs hardness is 5-5.5; when it is crushed to less than 2cm square, its force area is usually less than 10mm², and the crushing force is between 200-500N; the main components of the same batch of ore are similar, the difference is that due to the different locations of the ore in the vein, the main components will be quite different, and there will also be large differences in hardness, and different processes will be required to extract the rare earth elements inside it.

[0019] The rare earth alloy ore that has been detected by chromatography is evenly spread on the conveyor 1, and then the conveyor 1 is started, and the conveyor 1 transports the rare earth alloy ore backward; when the rare earth alloy ore moves to the position of the height detection mechanism, the height of the rare earth alloy ore at this position can be detected by starting the height detection mechanism, and the height detection mechanism adjusts the height of the pressing detection mechanism according to the height of the rare earth alloy ore, so that the pressing detection mechanism can always maintain a certain height from the detected rare earth metal alloy, and further ensure that the pressing detection mechanism applies the same pressing force to each rare earth alloy ore of different heights; After the height detection is completed, the conveyor 1 continues to drive the rare earth alloy ore to move backward. When the rare earth alloy ore moves to the position of the pressing detection mechanism, the pressing detection mechanism performs elastic pressing detection on the rare earth alloy ore, and the rare earth alloy ore with poor hardness will be crushed. Then, as the conveyor 1 is transported to the position of the screening mechanism, the screening mechanism is started to collect the crushed rare earth alloy ore.

[0020] The detection process is as follows: when the conveying member 1 drives the rare earth alloy ore to move to the position of the pressing roller 5, the rare earth alloy ore will lift the pressing roller 5, and the pressing roller 5 will drive the first mounting frame 4 to move upward, and further squeeze the elastic member 9 in a pre-tightened state. Under the action of the elastic member 9, the pressing roller 5 will complete the pressing of the rare earth alloy ore and crush the ore with lower hardness. It is worth noting that when the ore is rough, the pressing roller can be driven to rotate by the ore; if the ore is rough, a driving member can be added to the pressing roller 5 to drive the pressing roller 5 to rotate to adapt to the conveying speed of the conveying member.

[0021] In this application, the detection actuator is set as the pressing roller 5. On the one hand, it can perform continuous detection in matching with the conveyor belt and cooperate with the screening mechanism to sort out the ores with lower hardness. At the same time, when the pressing roller 5 is detecting, its ideal contact with the ore is line contact, which is different from the detection of the plate-shaped actuator. The actual contact area between the pressing roller 5 and the ore is smaller, and the required crushing force is also smaller, that is, the overall strength requirement for the device is lower.

[0022] As a further solution of the present invention, the height detection mechanism includes a first fixed frame 10 fixedly arranged on the second frame 3; a second mounting frame 11 is slidably arranged at the bottom of the first fixed frame 10; a detection roller 12 is rotatably installed in the second mounting frame 11. The detection roller 12 has the same size as the pressing roller 5 and can be attached to the conveying member 1; the detection roller 12 can be made of a light material such as engineering plastic; a limiting mechanism is arranged on the first fixed frame 10, and the limiting mechanism is used to limit the upward movement of the first fixed block 6; an adjusting mechanism is arranged on the first fixed frame 10, and the adjusting mechanism is used to adjust the position of the limiting mechanism according to the upward movement distance of the second mounting frame 11 when the second mounting frame 11 moves upward. See Figures 3-4 , because the shapes of the crushed ores are uneven and there is a partial stacking phenomenon on the conveyor belt, the heights of the ores during the actual pressing process of the pressing roller 5 are not balanced. Under the action of the first elastic member 9, the ores with higher heights will lift the pressing roller 5 to a higher height, and the first elastic member 9 will contract to a greater extent. When the stiffness coefficient of the first elastic member 9 is relatively large, a large pressure difference will be generated due to the height difference of the ores, thus affecting the detection result. In order to make the pressing roller 5 apply similar pressing forces to all ores, when the conveying member 1 conveys the ores to the front position of the pressing roller 5, the ores first come into contact with the detection roller 12 and lift the detection roller 12 to cross over the detection roller 12; during this process, the ores lift the detection roller 12 and drive the second mounting frame 11 to move upward through the detection roller 12. The position of the limiting mechanism can be adjusted according to the upward movement height of the second mounting frame 11 through the adjusting mechanism, and by adjusting the position of the limiting mechanism, the maximum position where the limiting mechanism can limit the upward movement of the first fixed block 6 can be determined. When the ores lift the pressing roller 5 to the highest position, the first fixed block 6 is also at the highest position and the first fixed block 6 cannot move upward continuously. Therefore, at this time, the pressing roller 5 will start to apply pressure to the ores; when the ores cross over the pressing roller 5, the first elastic member 9 will maintain a specific degree of contraction, so as to ensure that the pressing roller 5 applies similar pressing forces to the continuously conveyed ores.

[0023] As a further solution of the present invention, the limiting mechanism includes a limiting frame 13. On the left and right sides of the limiting frame 13, first ratchets 14 are symmetrically and rotatably connected. At the upper end of the first ratchet 14, a threaded rod 15 passing through the first fixing frame 10 is fixedly connected. The threaded rod 15 is threadedly connected to the first fixing frame 10. At the bottom of the limiting frame 13, a limiting plate 16 is installed. The limiting plate 16 is in contact with the limiting frame 13. See Figures 3-4 , when the limiting frame 13 is in a fixed state relative to the first fixing frame 10, the limiting frame 13 will press against the limiting plate 16, resulting in the first fixing block 6 being unable to move upward continuously.

[0024] As a further solution of the present invention, the adjusting mechanism includes a gear 17 and a rack 18. The rack 18 is fixedly connected to the first fixing frame 10 and the gear 17 is rotatably connected to the limiting frame 13. The rack 18 is engaged with the gear 17. A self-locking mechanism is provided on the gear 17. The self-locking mechanism is used to lock the gear 17 unidirectionally so that the gear 17 cannot move upward relative to the rack 18. An unlocking mechanism is provided on the second mounting frame 11. The unlocking mechanism is used to unlock the unidirectionally locked gear 17 when the second mounting frame 11 moves upward. See Figures 4-5 , when the ore is in contact with the detection roller 12 and pushes the detection roller 12 upward, when the detection roller 12 drives the second mounting frame 11 to move upward, the unlocking mechanism will first unlock the gear 17, so that the gear 17 can move upward relative to the rack 18. At this time, the second mounting frame 11 can drive the limiting frame 13 to move upward. When the ore passes over the detection roller 12, the second mounting frame 11 driven by the detection roller 12 naturally drops downward. At this time, the self-locking mechanism will lock the gear 17 again, and the gear 17 cannot move upward relative to the rack 18. Therefore, the limiting frame 13 limits the maximum height of the first fixing block 6.

[0025] As a further solution of the present invention, the self-locking mechanism includes two second ratchets 19. The two second ratchets 19 are symmetrically fixedly connected to the rotating shafts at both ends of the gear 17. On the limiting frame 13, a second fixing frame 20 is fixedly connected at a position outside the second ratchet 19. Four first sliders 22 are slidably connected to the second fixing frame 20. A second pawl 21 is fixedly connected to the first slider 22. All four second pawls 21 are engaged with the second ratchet 19 on the same side. A second elastic member 23 is fixedly connected to the first slider 22. The other end of the second elastic member 23 is fixedly connected to the second fixing frame 20. See Figures 4-5, when the gear 17 moves upward relative to the rack 18, the unlocking mechanism will first release the locking of the four second pawls 21 on the second ratchet wheel 19, and the second ratchet wheel 19 can rotate normally. At this time, the gear 17 will start to rotate under the action of the rack 18, and when the gear 17 rotates, it will drive the two second ratchet wheels 19 connected to it to rotate; when the second mounting bracket 11 drives the limiting bracket 13 to move to a high position, the second mounting bracket 11 will then drop downward, the unlocking mechanism is withdrawn, and the four second pawls 21 lock the second ratchet wheel 19 again. Therefore, the second ratchet wheel 19 cannot support the gear 17 to continue moving upward relative to the rack 18, and the limiting bracket 13 reaches the maximum height, that is, the height of the limiting bracket 13 is reliably locked.

[0026] In this application, the self-locking mechanism realizes the unidirectional conversion of the increase in the height of the detection roller 12 into the increase in the height of the limiting bracket 13, that is, when the limiting bracket 13 moves upward, it can only be driven by the detection roller 12, so as to realize the reliable locking of the limiting bracket 13, and further enable the limiting bracket 13 to reliably limit the pressing roller 5.

[0027] As a further solution of the present invention, the unlocking mechanism includes two second fixing blocks 24, and the two second fixing blocks 24 are respectively located on the left and right sides of the second fixing frames 20 on the left and right sides; four first connecting rods 25 are rotatably connected to the second fixing blocks 24, and the other ends of the four first connecting rods 25 are respectively rotatably connected to the four first sliders 22; the limiting bracket 13 is fixedly connected with a connecting rod 26 at the outer side of the second fixing block 24, and the connecting rod 26 is slidably connected with the first fixing frame 10; a push rod 27 is provided at the bottom of the connecting rod 26, and the push rod 27 is fixedly connected with the second mounting bracket 11; a push block 28 is provided between the push rod 27 and the connecting rod 26, and the push block 28 is fixedly connected with the second fixing block 24; See Figures 4-6 , when the second mounting bracket 11 moves upward, it will drive the two push rods 27 connected to it to move upward; when the push rod 27 moves upward, it will first push the push block 28 inward, the push block 28 will drive the second fixing block 24 to move inward, and when the second fixing block 24 moves, it will respectively push the four first sliders 22 to slide through the four first connecting rods 25, and the first slider 22 drives the second pawl 21 to move so that the second pawl 21 is disengaged from the second ratchet wheel 19. At this time, both the second ratchet wheel 19 and the gear 17 can rotate freely.

[0028] As a further solution of the present invention, the threaded rod 15 does not have self-locking property; a third sliding rod 29 penetrating through the limiting frame 13 is provided at a position between the two first ratchets 14 on the limiting frame 13, and the third sliding rod 29 is slidably connected to the limiting frame 13; second connecting rods 30 are symmetrically and rotatably connected to the left and right sides of the upper end of the third sliding rod 29, a first ratchet pawl 31 is rotatably connected to one end of the second connecting rod 30 close to the first ratchet 14, and the first ratchet pawl 31 meshes with the first ratchet 14; the first ratchet pawl 31 is slidably connected to the limiting frame 13 and a third spring 32 is sleeved on the first ratchet pawl 31, one end of the third spring 32 is fixedly connected to the first ratchet pawl 31 and the other end is fixedly connected to the limiting frame 13; See Figure 5 , Figure 7 , when the detection roller 12 is pushed to the highest position by the rare earth alloy ore, the limiting frame 13 moves to the highest position. After the rare earth alloy ore passes over the detection roller 12, the detection roller 12 will automatically drop downward. At this time, under the action of the first ratchet pawl 31, the first ratchet 14 and the threaded rod 15 cannot rotate reversely, so the limiting frame 13 will not move downward; since the limiting plate 16 will push the push rod 27 upward when it fits with the limiting frame 13, when the push rod 27 moves upward, it will drive the first ratchet pawl 31 to disengage from the first ratchet 14 through the second connecting rod 30, and the threaded rod 15 can rotate freely; when the rare earth alloy ore passes over the pressing roller 5, the first fixing block 6, the limiting plate 16 and the limiting frame 13 will automatically reset downward.

[0029] See Figure 9 , this application utilizes the cooperation of the self-locking mechanism and the unlocking mechanism in the height detection mechanism to realize the self-locking action initiated by the detection roller 12, and realizes the unlocking action with the detection end of the pressing roller 5 as the mark (that is, the detection roller 12 drives the limiting frame 13 to rise, and the pressing roller 5 drives the limiting frame 13 to fall); at the same time, the self-locking mechanism has the function of maintaining to make up for the time difference between the detection roller 12 and the pressing roller 5 contacting the ore, so as to ensure the coincidence degree of height detection and hardness detection, and enable this application to maintain the balance of detection on the ore conveying line with height differences; secondly, since the forces on the detection roller 12 and the pressing roller 5 in this application are quite different (where the force on the pressing roller 5 is mainly for the purpose of meeting the detected hardness, and its force is usually between 200 - 1500 N; while the force on the detection roller 12 is mainly reflected in its attached characteristic self-weight and the friction between characteristics, and its force usually does not exceed 120 N), the detection roller can more sensitively and quickly detect the height of the ore and feedback the height to the pressing detection mechanism.

[0030] As Figures 2-3 shown, as a further solution of the present invention, the screening mechanism includes a screen 33, the screen 33 is located at the rear end of the conveying member 1 and the screen 33 is fixedly connected to the guardrails at both ends of the conveying member 1; the screen 33 is in an inclined shape with the front end high and the rear end low; When the alloy content in the ore is low, the hardness and strength of the ore are poor, and it will be directly crushed into multiple small pieces after being pressed by the pressing roller 5. Therefore, it is necessary to sort out the ore that has been crushed into multiple small pieces from the batch of ore.

[0031] After the crushed rare earth metal alloy is transported onto the screen 33, the crushed rare earth alloy ore will fall through the sieve holes of the screen 33, while the complete rare earth alloy ore will stay on the screen 33 and then slide down along the screen 33 to be collected.

Claims

1. An online detection and sorting device for rare earth metal alloys, comprising a conveying member (1), characterized in that: A frame body 1 (2) and a frame body 2 (3) are provided above the conveying member (1); a first mounting frame (4) is provided inside the frame body 1 (2); a pressing roller (5) is rotatably installed inside the first mounting frame (4); A pressing detection mechanism is provided in the frame body 1 (2), and the pressing detection mechanism is used to achieve the effect of detecting the hardness of the rare earth alloy ore by driving the pressing roller (5) to elastically press the rare earth alloy ore on the conveying member (1); The press detection mechanism comprises two first sliding bars (7) fixedly connected to both sides of the frame body (2), the lower ends of the two first sliding bars (7) being slidably connected to a first fixing block (6); a first mounting frame (4) is elastically slidably provided on the lower side of the first fixing block (6); A screening mechanism is provided at the rear side of the conveying member (1), and the screening mechanism is used to sort the crushed rare earth alloy ore from the mixture.

2. The online detection and sorting device for rare earth metal alloys according to claim 1, characterized in that: The frame body 2 (3) is provided with a height detection mechanism, which adjusts the height of the pressing detection mechanism according to the height of the rare earth alloy ore to be pressed, so that the pressing detection mechanism can maintain the same pressing force on rare earth alloy ores of different heights.

3. The online detection and sorting device for rare earth metal alloys according to claim 2, characterized in that: The height detection mechanism comprises a first fixed frame (10), the first fixed frame (10) being fixedly connected to the frame body (3); a second mounting frame (11) being slidably arranged at the bottom of the first fixed frame (10); a detection roller (12) being rotatably mounted in the second mounting frame (11), the detection roller (12) being equal in size to the pressing roller (5) and both being in contact with the conveying member (1); a limiting mechanism being arranged on the first fixed frame (10), the limiting mechanism being used for limiting the upward movement of the first fixed block (6); and an adjusting mechanism being arranged on the first fixed frame (10), the adjusting mechanism being used for adjusting the upper limit position of the limiting mechanism according to the degree of upward movement of the second mounting frame (11) when the second mounting frame (11) moves upward.

4. The online detection and sorting device for rare earth metal alloys according to claim 3 is characterized in that: The limiting mechanism comprises a limiting frame (13), wherein left and right sides of the limiting frame (13) are symmetrically connected to first ratchets (14) for rotation, an upper end of the first ratchet (14) is fixedly connected to a threaded rod (15) passing through the first fixing frame (10), and the threaded rod (15) is threadedly connected to the first fixing frame (10); a limiting plate (16) is installed at the bottom of the limiting frame (13), and the limiting plate (16) is in contact with the limiting frame (13).

5. The online detection and sorting device for rare earth metal alloys according to claim 4, characterized in that: The adjustment mechanism comprises a gear (17) and a rack (18), wherein the rack (18) is fixedly connected to the first fixing frame (10) and the gear (17) is rotationally connected to the limiting frame (13), and the rack (18) is meshed with the gear (17); a self-locking mechanism is provided on the gear (17), and the self-locking mechanism is used to lock the gear (17) in one direction so that the gear (17) cannot move upward relative to the rack (18); and an unlocking mechanism is provided on the second mounting frame (11), and the unlocking mechanism is used to unlock the one-way locked gear (17) when the second mounting frame (11) moves upward.

6. The online detection and sorting device for rare earth metal alloys according to claim 5, characterized in that: The self-locking mechanism comprises two second ratchet wheels (19), the two second ratchet wheels (19) are symmetrically fixedly connected to the rotating shafts at both ends of the gear (17); a second fixing frame (20) is fixedly connected to the limiting frame (13) at a position outside the second ratchet wheels (19); four first sliding blocks (22) are slidably connected to the second fixing frame (20), the first sliding blocks (22) are fixedly connected to second pawls (21), and the four second pawls (21) are all engaged with the second ratchet wheels (19) located on the same side thereof; and a second elastic member (23) is fixedly connected to the first sliding block (22), the other end of the second elastic member (23) being fixedly connected to the second fixing frame (20).

7. The online detection and sorting device for rare earth metal alloys according to claim 6, characterized in that: The unlocking mechanism comprises two second fixed blocks (24), the two second fixed blocks (24) being respectively located at the left and right sides of the second fixed frames (20) on the left and right sides; four first connecting rods (25) are rotatably connected to the second fixed blocks (24), and the other ends of the four first connecting rods (25) are rotatably connected to four first sliding blocks (22) respectively; the limiting frame (13) is fixedly connected to a connecting rod (26) at an outer position of the second fixed block (24), and the connecting rod (26) is slidably connected to the first fixed frame (10); a push rod (27) is provided at the bottom of the connecting rod (26), and the push rod (27) is fixedly connected to the second mounting frame (11); a push block (28) is provided between the push rod (27) and the connecting rod (26), and the push block (28) is fixedly connected to the second fixed block (24).

8. The online detection and sorting device for rare earth metal alloys according to claim 4, characterized in that: The threaded rod (15) is not self-locking; a third sliding rod (29) penetrating the limiting frame (13) is provided between the two first ratchet wheels (14) on the limiting frame (13), and the third sliding rod (29) is slidably connected to the limiting frame (13); the left and right sides of the upper end of the third sliding rod (29) are symmetrically rotatably connected to the second connecting rod (30), and one end of the second connecting rod (30) close to the first ratchet wheel (14) is rotatably connected to the first pawl (31), and the first pawl (31) is meshed with the first ratchet wheel (14); the first pawl (31) is slidably connected to the limiting frame (13) and a third spring (32) is sleeved on the first pawl (31), and one end of the third spring (32) is fixedly connected to the first pawl (31) and the other end is fixedly connected to the limiting frame (13).

9. The online detection and sorting device for rare earth metal alloys according to claim 1, characterized in that: The screening mechanism comprises a screen (33), the screen (33) being located at the rear end of the conveying member (1) and the screen (33) being fixedly connected to guardrails at both ends of the conveying member (1); the screen (33) is in an inclined shape with the front higher and the rear lower.

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