A rare earth oxide detection sampling device and method thereof

Abstract

The application discloses a rare earth oxide detection sampling device and method, and relates to the technical field of rare earth sampling, which comprises a connecting frame, a displacement sampling part is arranged on the inner side of a first connecting cover, and two half-cone type sampling tubes are arranged below a bottom plate through the displacement sampling part and the first connecting cover. The displacement sampling part is arranged, the telescopic cylinder is started, the movable plate is moved downward relative to the positioning plate through the extension of the telescopic cylinder, the movable plate is pressed against the top end of the inclined connecting frame plate, the slider is moved away from the center of the bottom plate under the action of the inclined connecting frame plate, the separation between the two half-cone type sampling tubes is realized, the inclined connecting frame plate drives the slider to move toward the center of the bottom plate through the contraction of the telescopic cylinder, the two half-cone type sampling tubes are folded, the sampling of the rare earth is realized, and the accuracy of the sampling position is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of rare earth sampling, in particular to a rare earth oxide detection sampling device and method thereof. BACKGROUND

[0002] Rare earth refers to a group of 17 elements with similar chemical properties, including lanthanum, cerium, praseodymium, neodymium, etc. Rare earth can be divided into light rare earth (such as lanthanum and cerium) and heavy rare earth (such as dysprosium and cerium). Light rare earth is mainly used in metallurgy and agriculture, while heavy rare earth is widely used in high-end technology due to its scarcity and special performance, such as manufacturing permanent magnets and laser materials.

[0003] The metal content in rare earth is not uniform. After processing of rare earth is completed, the subsequent sampling and analysis of rare earth is carried out to estimate the content of oxides in rare earth. When the rare earth is processed and accumulated in the storage tank, the sampling tube needs to be inserted into the tank for sampling and detection. After that, the sampling tube is pulled out, and the rare earth inside the sampling tube can be detected. In order to improve the accuracy of detection, the rare earth at multiple positions in the tube needs to be sampled. When sampling the rare earth at the center of the tank, the sampling tube inserted into the tank will still be mixed with other parts of the rare earth, which will affect the accuracy of sampling. SUMMARY

[0004] The purpose of the present application is to solve the problem of not being able to sample the rare earth in the tank individually. A rare earth oxide detection sampling device and method thereof are provided.

[0005] To achieve the above purpose, the present application provides the following technical scheme: a rare earth oxide detection sampling device, comprising a connecting frame, a controller is installed on the inner side of the connecting frame, a motor is installed on the bottom of the connecting frame, a distance adjusting screw is connected to the output end of the motor, a limiting guide rod is installed on both sides of the motor at the bottom of the connecting frame, a movable frame is movably sleeved on the distance adjusting screw, an extension rod is installed at the bottom end of the movable frame, a bottom plate is connected to the bottom end of the extension rod, a second connecting cover is arranged on the outer side of the bottom plate, a corrugated expansion pipe is installed on the top of the second connecting cover, a first connecting cover is fixedly connected to the top of the corrugated expansion pipe, a displacement sampling element is arranged on the inner side of the first connecting cover, and two half-cone sampling tubes are connected to the bottom plate below the first connecting cover through the displacement sampling element.

[0006] As a further scheme of the present application: a threaded hole matched with the distance adjusting screw and a through hole matched with the limiting guide rod are arranged on the top of the movable frame.

[0007] As a further scheme of the present application: the shifting sampling element comprises a positioning plate mounted on the extension rod and located inside the first connecting cover, a telescopic air cylinder is mounted on the top of the positioning plate, an active plate located below the positioning plate is connected to the output end of the telescopic air cylinder, the active plate is slidingly connected with the extension rod, a slanting connecting plate is rotatably connected to the bottom of the active plate through a rotating shaft, a limiting slot penetrating through the bottom plate is formed on the top of the bottom plate, a sliding block is slidingly connected to the inner side of the limiting slot, the bottom end of the slanting connecting plate is rotatably connected with the two sides of the sliding block through a rotating shaft, a first telescopic spring connected with the bottom plate is mounted on the bottom of the active plate, a rectangular insertion block extending above the sliding block is inserted into the bottom of the sliding block, a semi-tapered sampling tube is fixedly connected to the bottom of the rectangular insertion block, and the bottom end of the extension rod is provided with a clamping unit connected with the rectangular insertion block.

[0008] As a further scheme of the present application: the maximum contraction length of the corrugated telescopic tube is equal to the maximum extension length of the telescopic air cylinder, and the telescopic air cylinder is electrically connected with the controller through wires.

[0009] As a further scheme of the present application: the edge of the active plate is connected with the inner wall of the corrugated telescopic tube, and a through hole with a diameter larger than that of the extension rod is formed at the center of the active plate.

[0010] As a further scheme of the present application: the clamping unit comprises a connecting cavity formed in the inner side of the extension rod, a worm wheel is rotatably connected to the inner side of the connecting cavity through a rotating shaft, a rotating connecting rod is fixed to one end of the rotating shaft connected with the connecting cavity, a blocking plate is arranged on the outer wall of the rotating connecting rod, a T-shaped slot is formed on the top of the rectangular insertion block, a worm is rotatably connected to the inner side of the connecting cavity through a rotating shaft and engaged with the worm wheel, and one end of the worm is provided with a dialing rod extending to the outer wall of the second connecting cover.

[0011] As a further scheme of the present application: the clamping unit further comprises a sleeve fixedly connected to the inner wall of one of the semi-tapered sampling tubes, a sleeve rod is inserted into the sleeve, a second telescopic spring is arranged on one end of the sleeve rod and connected with the inner wall of the sleeve, the other end of the sleeve rod is connected with the other semi-tapered sampling tube, and the two semi-tapered sampling tubes are connected by limiting the insertion of the sleeve rod and the sleeve, so that the two semi-tapered sampling tubes are prevented from being separated during disassembly.

[0012] As a further scheme of the present application: the T-shaped slot is divided into a horizontal section and a vertical section, and the horizontal section is located below the vertical section.

[0013] As a further scheme of the present application: the diameter of the rotating connecting rod is equal to the width of the vertical section of the T-shaped slot.

[0014] The present application also discloses a rare earth oxide detection sampling method using the above-mentioned rare earth oxide detection sampling device, comprising the following steps:

[0015] S1: first, the bottom end of the semi-cone sampling tube is in contact with the rare earth in the tank, the connecting frame is held, and the motor is controlled to operate through the controller, the motor drives the distance adjusting screw to rotate when operating, so that the movable frame moves in the vertical direction along the distance adjusting screw, the semi-cone sampling tube is inserted into the accumulated rare earth by the downward movement of the movable frame along the distance adjusting screw, and the two semi-cone sampling tubes below the bottom plate are in a folded state at this time;

[0016] S2: when the semi-cone sampling tube moves downward to the sampling position, the displacement sampling part is started through the controller, and the two semi-cone sampling tubes are separated through the operation of the displacement sampling part;

[0017] S3: the two semi-cone sampling tubes are folded again through the operation of the displacement sampling part, and the semi-cone sampling tube clamps the rare earth of the specified depth, so that the rare earth is located between the two semi-cone sampling tubes;

[0018] S4: then the semi-cone sampling tube can be pulled out through the reverse rotation of the motor.

[0019] Compared with the prior art, the beneficial effects of the present application are:

[0020] 1. By setting the displacement sampling part, the telescopic cylinder is started, the movable plate moves downward relative to the positioning plate through the extension of the telescopic cylinder, so that the movable plate extrudes the top end of the inclined connecting plate, at this time the slider moves away from the center of the bottom plate under the action of the inclined connecting plate, so that the slider drives the semi-cone sampling tube to move through the rectangular insert block, so as to realize the separation of the two semi-cone sampling tubes, and the telescopic cylinder is retracted, so that the inclined connecting plate drives the slider to move towards the center of the bottom plate, so that the two semi-cone sampling tubes are folded, so as to realize the sampling of the rare earth, so as to improve the accuracy of the sampling position, and prevent the mixed rare earth samples from mixing with other depth rare earth samples;

[0021] 2、By setting the clamping unit, when the half-cone type sampling pipe is disassembled, the position adjusting rod is twisted, the rotation of the worm is driven by the position adjusting rod, the worm gear rotates relative to the extension rod, the rotating connecting rod drives the blocking plate to rotate, the blocking plate is rotated to the lower side of the rotating connecting rod, at this time the blocking plate will contact with the T-shaped groove, so that the rectangular insert block loses the limit, then pulling the half-cone type sampling pipe can take out the rectangular insert block from the inner side of the sliding block, so the half-cone type sampling pipe can be quickly taken down and replaced, so as to avoid mixing of the residual samples in the half-cone type sampling pipe during sampling, when the half-cone type sampling pipe is installed, the rectangular insert block is inserted into the sliding block, at this time the T-shaped groove at the top of the rectangular insert block is located outside the rotating connecting rod, then the position adjusting rod is rotated, the rotation of the worm is driven by the position adjusting rod, the blocking plate is rotated to the horizontal state, so that the blocking plate limits the vertical direction of the rectangular insert block through the T-shaped groove, so as to realize the quick installation of the half-cone type sampling pipe. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is the schematic diagram of the whole structure of the application;

[0023] Figure 2 It is the connection diagram of the connecting frame and the movable frame of the application;

[0024] Figure 3 It is the internal structure diagram of the first connecting cover of the application;

[0025] Figure 4 It is the connection diagram of the corrugated expansion pipe and the second connecting cover of the application;

[0026] Figure 5 It is the connection diagram of the movable plate and the bottom plate of the application;

[0027] Figure 6 It is the Figure 5 Enlarged view of A in the application;

[0028] Figure 7 It is the connection diagram of the half-cone type sampling pipe and the rectangular insert block of the application;

[0029] Figure 8 It is the internal structure diagram of the half-cone type sampling pipe of the application;

[0030] Figure 9 It is the connection diagram of the movable plate and the rectangular insert block of the application.

[0031] In the figure: 1, connecting frame; 2, controller; 3, distance adjusting screw; 4, limiting guide rod; 5, movable frame; 6, extension rod; 7, first connecting cover; 8, corrugated expansion tube; 9, second connecting cover; 10, half-cone type sampling tube; 11, motor; 12, movable plate; 13, positioning plate; 14, telescopic cylinder; 15, inclined connecting plate; 16, bottom plate; 17, worm; 18, first telescopic spring; 19, worm wheel; 20, connecting cavity; 21, T-shaped groove; 22, shifting lever; 23, rectangular plug; 24, rotary connecting rod; 25, blocking plate; 26, sleeve; 27, second telescopic spring; 28, sleeve rod; 29, sliding block; 30, limiting groove. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0033] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance. In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "setting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. The embodiments of the present application will be described below according to the overall structure of the present application.

[0034] Please refer to Figures 1-9The embodiment of the present application discloses a rare earth oxide detection sampling device, which comprises a connecting frame 1, a controller 2 is installed on the inner side of the connecting frame 1, a motor 11 is installed at the bottom of the connecting frame 1, a pitch adjusting lead screw 3 is connected to the output end of the motor 11, limiting guide rods 4 are installed at the two sides of the motor 11 at the bottom of the connecting frame 1, a movable frame 5 is movably sleeved on the pitch adjusting lead screw 3, an extension rod 6 is installed at the bottom end of the movable frame 5, a bottom plate 16 is connected to the bottom end of the extension rod 6, a second connecting cover 9 is arranged on the outer side of the bottom plate 16, a corrugated expansion pipe 8 is installed at the top of the second connecting cover 9, a first connecting cover 7 is fixedly connected to the extension rod 6 and arranged at the top of the corrugated expansion pipe 8, a displacement sampling part is arranged on the inner side of the first connecting cover 7, and two half-cone sampling pipes 10 are connected to the bottom plate 16 through the displacement sampling part on the inner side of the first connecting cover 7.

[0035] The top of the movable frame 5 is provided with a threaded hole matched with the pitch adjusting lead screw 3 and a through hole matched with the limiting guide rod 4.

[0036] In the embodiment, first, the bottom end of the half-cone sampling pipe 10 is contacted with the rare earth in the tank, the connecting frame 1 is held, the motor 11 is controlled to operate through the controller 2, the pitch adjusting lead screw 3 is driven to rotate when the motor 11 operates, so that the movable frame 5 moves in the vertical direction along the pitch adjusting lead screw 3, the half-cone sampling pipe 10 is inserted into the accumulated rare earth through the downward movement of the movable frame 5 along the pitch adjusting lead screw 3, at this time, the two half-cone sampling pipes 10 below the bottom plate 16 are in a folded state, when the half-cone sampling pipe 10 moves downward to the sampling position, the displacement sampling part is started through the controller 2, the two half-cone sampling pipes 10 are separated through the operation of the displacement sampling part, then the two half-cone sampling pipes 10 are folded again through the operation of the displacement sampling part, in this process, the half-cone sampling pipe 10 clamps the rare earth at a specified depth, so that the rare earth is located between the two half-cone sampling pipes 10, then the half-cone sampling pipe 10 is pulled out through the reverse rotation of the motor 11, so that the sampling of the rare earth at the specified depth is realized, the sampling accuracy is further improved, and the mixing of the rare earth at other positions with the rare earth at the specified position in the sampling process is prevented.

[0037] Please pay attention to Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 9The shifting sampling element comprises a positioning plate 13 mounted on the extension rod 6 and located inside the first connecting cover 7, a telescopic cylinder 14 mounted on the top of the positioning plate 13, a movable plate 12 located below the positioning plate 13 and connected with the output end of the telescopic cylinder 14, the movable plate 12 being slidably connected with the extension rod 6, a slanting connecting plate 15 rotatably connected with the bottom of the movable plate 12 through a rotating shaft, a limiting slot 30 penetrating through the bottom plate 16 and formed on the top of the bottom plate 16, a sliding block 29 slidably connected with the inner side of the limiting slot 30, the bottom end of the slanting connecting plate 15 and the two sides of the sliding block 29 being rotatably connected through rotating shafts, a first telescopic spring 18 mounted on the bottom of the movable plate 12 and connected with the bottom plate 16, a rectangular insertion block 23 inserted into the bottom of the sliding block 29 and extending above the sliding block 29, and a semi-tapered sampling tube 10 fixedly connected with the bottom of the rectangular insertion block 23, the bottom end of the extension rod 6 being provided with a clamping unit connected with the rectangular insertion block 23.

[0038] The maximum contraction length of the corrugated telescopic tube 8 is equal to the maximum extension length of the telescopic cylinder 14, the telescopic cylinder 14 is electrically connected with the controller 2 through wires, the edge of the movable plate 12 is connected with the inner wall of the corrugated telescopic tube 8, and a through hole with a diameter larger than that of the extension rod 6 is formed at the center of the movable plate 12.

[0039] In the embodiment, the telescopic cylinder 14 is started, the movable plate 12 is moved downward relative to the positioning plate 13 through the extension of the telescopic cylinder 14, the top end of the slanting connecting plate 15 is pressed by the movable plate 12, the sliding block 29 is moved away from the center of the bottom plate 16 under the action of the slanting connecting plate 15, the semi-tapered sampling tube 10 is moved by the sliding block 29 through the rectangular insertion block 23, the two semi-tapered sampling tubes 10 are separated, the sliding block 29 is moved toward the center of the bottom plate 16 by the slanting connecting plate 15 through the contraction of the telescopic cylinder 14, the two semi-tapered sampling tubes 10 are folded, and the sampling of the rare earth is realized, so that the accuracy of the sampling position is improved, and the mixed sampling of the rare earth samples with other depth samples is prevented.

[0040] Please refer to Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 The clamping unit comprises a connecting cavity 20 formed in the inner side of the extension rod 6, a worm wheel 19 rotatably connected with the inner side of the connecting cavity 20, a rotating connecting rod 24 fixedly connected with one end of the rotating shaft of the connecting cavity 20 and connected with the worm wheel 19, a blocking plate 25 arranged on the outer wall of the rotating connecting rod 24, a T-shaped slot 21 formed on the top of the rectangular insertion block 23, a worm 17 rotatably connected with the inner side of the connecting cavity 20 and engaged with the worm wheel 19, and a dial lever 22 arranged on one end of the worm 17 and extending to the outer wall of the second connecting cover 9.

[0041] The clamping unit further comprises a sleeve 26 fixedly connected to the inner wall of one of the half-cone sampling tubes 10, a sleeve rod 28 is inserted into the sleeve 26, one end of the sleeve rod 28 is provided with a second expansion spring 27 connected to the inner wall of the sleeve 26, and the other end of the sleeve rod 28 is connected to the other half-cone sampling tube 10. The two half-cone sampling tubes 10 are connected by limiting the insertion of the sleeve rod 28 into the sleeve 26, preventing the two half-cone sampling tubes 10 from separating during disassembly.

[0042] The T-shaped groove 21 is divided into a horizontal section and a vertical section, the horizontal section is located below the vertical section, and the diameter of the rotating connecting rod 24 is equal to the width of the vertical section of the T-shaped groove 21.

[0043] In this embodiment, when the half-cone sampling tube 10 is disassembled, the position adjusting rod 22 is twisted, the rotation of the worm 17 is driven by the position adjusting rod 22 to rotate the worm gear 19 relative to the extension rod 6, so that the rotating connecting rod 24 drives the blocking plate 25 to rotate, so that the blocking plate 25 is rotated to the lower side of the rotating connecting rod 24. At this time, the blocking plate 25 will contact the T-shaped groove 21, so that the rectangular insertion block 23 loses the limit, and then pulling the half-cone sampling tube 10 can pull the rectangular insertion block 23 out of the inside of the sliding block 29, so that the half-cone sampling tube 10 can be quickly removed and replaced, so as to avoid mixing of the remaining samples in the half-cone sampling tube 10 during sampling. When the half-cone sampling tube 10 is installed, the rectangular insertion block 23 is inserted into the sliding block 29, at this time the T-shaped groove 21 at the top of the rectangular insertion block 23 is located outside the rotating connecting rod 24, then the position adjusting rod 22 is rotated, the rotation of the worm 17 is driven by the position adjusting rod 22 to rotate the blocking plate 25 to a horizontal state, so that the blocking plate 25 limits the vertical direction of the rectangular insertion block 23 through the T-shaped groove 21, thereby realizing the quick installation of the half-cone sampling tube 10.

[0044] The following will combine the above-mentioned rare earth oxide detection sampling device to provide a rare earth oxide detection sampling method, which specifically includes the following steps:

[0045] S1: First, the bottom end of the half-cone sampling tube 10 is in contact with the rare earth in the tank, the connecting frame 1 is held, and the motor 11 is controlled to operate by the controller 2. When the motor 11 operates, it will drive the distance adjusting screw 3 to rotate, so that the movable frame 5 moves vertically along the distance adjusting screw 3, and the half-cone sampling tube 10 is inserted into the accumulated rare earth by moving the movable frame 5 along the distance adjusting screw 3. At this time, the two half-cone sampling tubes 10 below the bottom plate 16 are in a folded state.

[0046] S2: when the semi-cone sampling tube 10 is lowered to the sampling position, the telescopic cylinder 14 is started, the movable plate 12 is lowered relative to the fixed plate 13 by the extension of the telescopic cylinder 14, so that the movable plate 12 extrudes the top end of the inclined connecting plate 15, at this time the slider 29 moves away from the center of the bottom plate 16 under the action of the inclined connecting plate 15, so that the slider 29 drives the semi-cone sampling tube 10 to move through the rectangular insert block 23, so as to realize the separation of the two semi-cone sampling tubes 10;

[0047] S3: the inclined connecting plate 15 drives the slider 29 to move towards the center of the bottom plate 16 by the contraction of the telescopic cylinder 14, so that the two semi-cone sampling tubes 10 are folded, so as to realize the sampling of rare earth, so as to improve the accuracy of the sampling position, and prevent the mixed of the extracted rare earth sample with other depth rare earth sample;

[0048] S4: the semi-cone sampling tube 10 is extracted by the reverse rotation of the motor 11, the position shifting rod 22 is twisted when the semi-cone sampling tube 10 is disassembled, the worm wheel 19 rotates relative to the extension rod 6 by the rotation of the worm 17 driven by the position shifting rod 22, so that the rotary connecting rod 24 drives the blocking plate 25 to rotate, so as to rotate the blocking plate 25 below the rotary connecting rod 24, at this time the blocking plate 25 is in contact with the T-shaped groove 21, so that the rectangular insert block 23 loses the limit, then pulling the semi-cone sampling tube 10 can extract the rectangular insert block 23 from the inside of the slider 29, so as to quickly take down and replace the semi-cone sampling tube 10, so as to avoid the mixing of the residual samples in the semi-cone sampling tube 10 during the sampling process, when the semi-cone sampling tube 10 is installed, the rectangular insert block 23 is inserted into the slider 29, at this time the T-shaped groove 21 at the top of the rectangular insert block 23 is located outside the rotary connecting rod 24, then the position shifting rod 22 is rotated, the blocking plate 25 is rotated to the horizontal state by the rotation of the worm 17 driven by the position shifting rod 22, so that the blocking plate 25 limits the vertical direction of the rectangular insert block 23 through the T-shaped groove 21, so as to realize the quick installation of the semi-cone sampling tube 10.

[0049] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A rare earth oxide detection sampling device comprising a connecting frame (1), characterized in that, The inner side of the connecting frame (1) is provided with a controller (2), the bottom of the connecting frame (1) is provided with a motor (11), the output end of the motor (11) is connected with a pitch adjusting screw rod (3), the bottom of the connecting frame (1) is provided with a limiting guide rod (4) located on both sides of the motor (11), the pitch adjusting screw rod (3) is movably sleeved with a movable frame (5), the bottom end of the movable frame (5) is provided with an extension rod (6), the bottom end of the extension rod (6) is connected with a bottom plate (16), the outer side of the bottom plate (16) is provided with a second connecting cover (9), the top of the second connecting cover (9) is provided with a corrugated expansion pipe (8), the top of the corrugated expansion pipe (8) is provided with a first connecting cover (7) fixedly connected with the extension rod (6), the inner side of the first connecting cover (7) is provided with a displacement sampling part, the inner side of the first connecting cover (7) is connected with two half-cone sampling pipes (10) located below the bottom plate (16) through the displacement sampling part; The displacement sampling part comprises a positioning plate (13) mounted on the extension rod (6) and located in the inner side of the first connecting cover (7), the top of the positioning plate (13) is provided with a telescopic air cylinder (14), the output end of the telescopic air cylinder (14) is connected with a movable plate (12) located below the positioning plate (13), the movable plate (12) is slidably connected with the extension rod (6), the bottom of the movable plate (12) is rotatably connected with an inclined connecting frame plate (15) through a rotating shaft, the top of the bottom plate (16) is provided with a limiting groove (30) penetrating through the bottom plate (16), the inner side of the limiting groove (30) is slidably connected with a sliding block (29), the bottom end of the inclined connecting frame plate (15) and the two sides of the sliding block (29) are rotatably connected through rotating shafts, the bottom of the movable plate (12) is provided with a first telescopic spring (18) connected with the bottom plate (16), the bottom of the sliding block (29) is inserted with a rectangular insertion block (23) extending above the sliding block (29), the half-cone sampling pipe (10) is fixedly connected to the bottom of the rectangular insertion block (23), the bottom end of the extension rod (6) is provided with a clamping unit connected with the rectangular insertion block (23); The clamping unit comprises a connecting cavity (20) provided in the inner side of the extension rod (6), the inner side of the connecting cavity (20) is rotatably connected with a worm wheel (19) through a rotating shaft, one end of the rotating shaft connected with the connecting cavity (20) is fixedly connected with a rotating connecting rod (24), the outer wall of the rotating connecting rod (24) is provided with a blocking plate (25), the top of the rectangular insertion block (23) is provided with a T-shaped groove (21), the inner side of the connecting cavity (20) is rotatably connected with a worm (17) engaged with the worm wheel (19) through a rotating shaft, one end of the worm (17) is provided with a shift lever (22) extending to the outer wall of the second connecting cover (9). The clamping unit further comprises a sleeve (26) fixedly connected to the inner wall of one of the half-cone sampling tubes (10), a sleeve rod (28) is inserted into the sleeve (26), one end of the sleeve rod (28) is provided with a second expansion spring (27) connected to the inner wall of the sleeve (26), the other end of the sleeve rod (28) is connected to the other half-cone sampling tube (10), the two half-cone sampling tubes (10) are connected by limiting the insertion of the sleeve rod (28) into the sleeve (26), and separation of the two half-cone sampling tubes (10) during disassembly is prevented.

2. The rare earth oxide detection sampling device according to claim 1, characterized in that, The top of the movable frame (5) is provided with a threaded hole matched with the distance adjusting screw rod (3) and a through hole matched with the limiting guide rod (4).

3. The rare earth oxide detection sampling device according to claim 1, wherein The maximum contraction length of the corrugated expansion tube (8) is equal to the maximum expansion length of the expansion cylinder (14), and the expansion cylinder (14) is electrically connected to the controller (2) through a wire.

4. The rare earth oxide detection sampling device of claim 1, wherein, The edge of the movable plate (12) is connected to the inner wall of the corrugated expansion tube (8), and a through hole with a diameter larger than that of the extension rod (6) is formed in the center of the movable plate (12).

5. The rare earth oxide detection sampling device of claim 1, wherein, The T-shaped groove (21) is divided into a horizontal section and a vertical section, and the horizontal section is located below the vertical section.

6. The rare earth oxide detection sampling device of claim 1, wherein The diameter of the rotating link (24) is equal to the width of the vertical section of the T-shaped groove (21).

7. A method of sampling for rare earth oxide detection, characterized by, The rare earth oxide detection sampling device of any one of claims 1-6 comprises the following steps: S1: first, the bottom end of the half-cone sampling tube (10) is in contact with the rare earth in the tank, the connecting frame (1) is held, and the motor (11) is controlled to operate through the controller (2), the motor (11) drives the distance adjusting screw rod (3) to rotate when operating, so that the movable frame (5) moves in the vertical direction along the distance adjusting screw rod (3), and the half-cone sampling tube (10) is inserted into the accumulated rare earth by moving the movable frame (5) downward along the distance adjusting screw rod (3), at this time, the two half-cone sampling tubes (10) below the bottom plate (16) are in a folded state; S2: when the half-cone sampling tube (10) moves downward to the sampling position, the displacement sampling member is started through the controller (2), and the two half-cone sampling tubes (10) are separated by the operation of the displacement sampling member; S3: the two half-cone sampling tubes (10) are folded again by the operation of the displacement sampling member, and the half-cone sampling tube (10) clamps the rare earth at a specified depth, so that the rare earth is located between the two half-cone sampling tubes (10); S4: then the half-cone sampling tube (10) can be pulled out by reversing the rotation of the motor (11).

Images