Coal preparation sampling device and use method thereof

Abstract

The present invention discloses a coal preparation sampling device and a method for using the same, and relates to the field of coal processing and production. The coal preparation sampling device comprises a suspended sampling unit and a sample receiving unit connected to the bottom of one side of the suspended sampling unit, and the suspended sampling unit comprises a horizontal movable suspension and a lifting member installed at the bottom of the horizontal movable suspension, and a sampling member is fixedly installed at the bottom of the lifting member. The coal preparation sampling device and the method for using the same, by designing a bidirectional transmission mechanism, the servo motor rotates clockwise to drive the drill bit to rotate, so that the sampling tube is inserted into the target depth of the coal pile, and the servo motor rotates counterclockwise to drive the sampling bin to rotate, so as to sample and lay out the coal, reduce equipment cost and operation difficulty, and utilize the sample receiving unit so that the device does not need to be reset after sampling, and the sample can be immediately returned at any point, reducing the operation steps.

Description

Technical Field

[0001] The invention relates to the technical field of coal processing production, and in particular to a coal preparation sampling device and a use method thereof. Background Art

[0002] In the process of coal mining, the mined raw coal is usually transported from the mine to the outside by transport vehicles. During transportation, the quality of the coal needs to be tested to determine the purpose of the coal. Therefore, it is necessary to sample the coal on each transport vehicle and then test the sample coal.

[0003] The traditional method is to manually take containers to fill samples, which is inefficient and troublesome for sampling some large vehicles. The sampling position is also relatively shallow, and random sampling cannot be achieved.

[0004] At present, professional coal sampling machines are mostly used for sampling. The sampling tube is driven by the translation frame. After the tube moves to the target sampling point, it is lowered in height. During the descent, the spiral shaft inside the sampling tube rotates, so that the material moves upward along the spiral for sampling.

[0005] However, during the use of the above technical solution, the sampling tube needs to be driven by different driving parts during the descent and sampling processes, the equipment cost is high, and the control is complicated. At the same time, accurate target depth samples cannot be obtained during the sampling process. Secondly, the sampling process generally uses a conveying device to transmit the sample or to place the sample at a fixed point. The former leads to higher equipment cost, and the latter needs to be reset and sample placed each time the sampling is completed during use, which makes the operation more troublesome. Therefore, a coal preparation sampling device and a method of use thereof are provided to solve the above problems. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides a coal preparation sampling device and a method of using the same, which solve the problems of the existing sampling devices, such as high cost, complicated sampling steps and inability to obtain accurate depth samples.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a coal preparation sampling device, comprising a suspended sampling unit and a sample receiving unit connected to the bottom of one side of the suspended sampling unit, wherein the suspended sampling unit comprises a horizontally movable suspension and a lifting member installed at the bottom of the horizontally movable suspension;

[0008] The lifting member moves along the x and y axes at the bottom of the horizontally movable suspension;

[0009] A sampling member is fixedly installed at the bottom end of the lifting member, and the sampling member includes a sampling tube and a drill bit rotatably arranged at the bottom end of the sampling tube. A plurality of sampling chambers are rotatably arranged on the outer surface of the bottom of the sampling tube. A servo motor is installed at the top end of the sampling tube, and a bidirectional transmission mechanism is installed between the servo motor, the drill bit and the sampling chamber.

[0010] The servo motor rotates clockwise to drive the drill bit to rotate clockwise through the bidirectional transmission mechanism;

[0011] The servo motor rotates counterclockwise to drive the sampling chamber to rotate clockwise through the bidirectional transmission mechanism;

[0012] A sample collecting mechanism is fixedly mounted on the outer surface of the middle portion of the lifting member, the sampling tube passes through the sample collecting mechanism, and the sample collecting mechanism is connected to a sample collecting unit.

[0013] Preferably, the horizontally movable suspension includes a fixed bracket and a movable bracket longitudinally slidably arranged on the outer surface of the fixed bracket, the bottom of the movable bracket is laterally slidably connected to a suspension carrier, and the lifting member is installed at the bottom of the suspension carrier.

[0014] Preferably, the middle part of the fixed bracket is rotatably connected to a driving screw, one end of the fixed bracket is fixedly installed with a driving motor, the output end of the driving motor is fixedly connected to the driving screw, the top of the movable bracket is threadedly connected to the driving screw, a walking chain is installed inside the movable bracket, the suspension carrier plate is fixedly connected to one side of the walking chain, and a walking motor for driving the walking chain is fixedly installed on the top of the movable bracket.

[0015] Preferably, the lifting member includes a lifting cylinder fixedly arranged at the bottom of the suspension carrier plate, a driving seat is fixedly connected between the output shaft of the lifting cylinder and the sampling tube, positioning guide rails are fixedly installed on both sides of the driving seat, positioning tubes are fixedly arranged on both sides of the lifting cylinder, the top of the positioning guide rails is movably inserted in the positioning tube, and the sample collecting mechanism includes a trapezoidal collecting bucket fixedly arranged on the outer surface of the lifting cylinder, and a leakage-proof baffle is slidably arranged on the outer surface of the bottom end of the trapezoidal collecting bucket.

[0016] Preferably, a fixing plate is fixedly provided on the outer surface of the bottom end of the lifting cylinder, connecting rods are fixedly installed on both sides of the fixing plate, the bottom end of the connecting rod is fixedly welded to the top of the trapezoidal collecting bucket, a sliding ring is movably sleeved on the outer surface of the output shaft of the lifting cylinder, a reset traction steel cable is installed between the sliding ring and the anti-leakage baffle, and a sealing traction spring is installed on the side of the anti-leakage baffle away from the reset traction steel cable.

[0017] Preferably, slide rails are fixedly provided on both sides of the bottom end of the trapezoidal collecting bucket, the leakage prevention baffle is slidably connected to the outer surface of the slide rails, the sealing traction spring is arranged inside the slide rails, a bracket plate is fixedly provided at the bottom of the fixed plate, a memory spring is installed between the bracket plate and the sliding ring, a fixed pulley is installed in the middle of a group of the connecting rods, and the reset traction steel cable passes through the inside of the memory spring and the outer surface of the fixed pulley.

[0018] Preferably, the servo motor is fixedly mounted inside the driving seat, and the bidirectional transmission mechanism comprises:

[0019] A driving tube, which is fixedly arranged at the output end of the servo motor;

[0020] A rotating shaft, which is fixedly arranged on the top of the drill bit;

[0021] A transmission tube, which is rotatably arranged inside the bottom end of the sampling tube;

[0022] The rotating shaft passes through the transmission tube, the top end of the rotating shaft is located inside the driving tube, and the bottom end of the driving tube is located inside the transmission tube;

[0023] A driving gear, which is fixedly sleeved on the outer surface of the bottom end of the transmission tube;

[0024] A passive gear is fixedly arranged on the top of the sampling chamber, and the passive gear is meshed with the driving gear;

[0025] A first pawl is fixedly disposed on the top end of the rotating shaft, a first ratchet is fixedly disposed on the inner wall of the driving tube, and the first pawl is meshed with the first ratchet;

[0026] A second ratchet is fixedly provided on the inner wall of the transmission tube, a second pawl is fixedly provided on the bottom end of the drive tube, the second pawl is meshed with the second ratchet, and the rotating shaft passes through the second pawl.

[0027] Preferably, the sample collecting unit comprises a material guiding pipe and a rotating sample coal storage member installed at the bottom end of the material guiding pipe;

[0028] The material guiding pipe comprises a fixed pipe and a connecting hose movably plugged into the top of the fixed pipe, and the top of the connecting hose is fixedly connected to the lower surface of the end of the trapezoidal collecting bucket;

[0029] The rotary sample coal storage element comprises a material receiving seat fixed at the bottom end of a fixed pipe and a material rack rotatably arranged inside the material receiving seat, and a plurality of sample barrels are movably clamped on the outer side of the material rack.

[0030] Preferably, a positioning rod is fixedly provided on the inner wall of the fixed tube, a counterweight seat is fixedly installed on the outer surface of the bottom end of the connecting hose, and the counterweight seat is slidably connected to the outer surface of the positioning rod;

[0031] A handle is rotatably provided on the top of the material receiving seat, and the handle is fixedly connected to the material rack. A sampling port is provided on one side of the material receiving seat, and a material discharge port is provided on the top of the other side of the material receiving seat, and the material discharge port is communicated with the bottom end of the fixed tube.

[0032] Preferably, a method for using a coal preparation sampling device comprises the following steps:

[0033] S1, horizontal positioning, start the drive motor and the travel motor, the mobile bracket slides longitudinally along the fixed bracket, and the suspension carrier slides transversely along the mobile bracket, so that the sampling piece moves to the target sampling position on the top of the carriage;

[0034] S2, depth positioning, the lifting cylinder is started, driving the sampling piece to move downward, the servo motor rotates clockwise, causing the drill bit to rotate clockwise, and the lifting cylinder is used to enable the sampling tube to be smoothly inserted to the target depth of the coal pile, and the lifting cylinder and the servo motor stop;

[0035] S3, sampling, the servo motor rotates counterclockwise, causing multiple groups of sampling bins to rotate, the sampling bins rotate 180 degrees, the openings face outwards, the coal automatically enters the sampling bins, and then the sampling bins continue to rotate 180 degrees, the openings face inwards, and the sampling is completed;

[0036] S4, sample return, the lifting cylinder contracts, driving the sampling tube to move upward into the trapezoidal collecting bucket, the driving seat squeezes the sliding ring, so that the anti-leakage baffle blocks the bottom opening of the trapezoidal collecting bucket, the servo motor rotates counterclockwise, so that the sampling chamber opening faces outward, the sample coal falls downward into the trapezoidal collecting bucket, and falls into the sample tube through the connecting hose, completing the sampling.

[0037] The present invention discloses a coal preparation sampling device and a method for using the same, which have the following beneficial effects:

[0038] 1. The coal preparation sampling device and its use method, the output end of the lifting cylinder drives the sampling piece to move downward, the servo motor drives the driving tube to rotate clockwise, and the drill bit is driven to rotate clockwise through the first ratchet and the first pawl, so that the sampling tube can be smoothly inserted to the target depth of the coal pile, and the servo motor rotates counterclockwise, and drives multiple groups of sampling bins to rotate through the second pawl and the second ratchet. When the sampling bin rotates 180 degrees, the opening faces outward, and the external coal automatically enters the sampling bin, and then the sampling bin continues to rotate 180 degrees, and the sampling bin opening faces inward, and the sampling is completed. After the sampling tube rises to the inside of the trapezoidal collecting bucket, the sampling bin rotates 180 degrees to automatically dump the material, which makes sampling more convenient, with low equipment cost, low control difficulty, and easy operation.

[0039] 2. The coal preparation sampling device and its use method: the lifting cylinder contracts to drive the sampling tube into the trapezoidal collecting bucket, and the driving seat pushes the sliding ring upward to relax the reset traction steel cable. Under the pulling force of the sealing traction spring and the gravity of the leakage-proof baffle, the leakage-proof baffle slides downward along the slide rail, and finally the leakage-proof baffle blocks the bottom opening of the trapezoidal collecting bucket. At this time, the material is poured. During the next sampling, the output end of the lifting cylinder moves downward. At this time, under the action of the memory spring, the sliding ring slides downward, and the leakage-proof baffle is pulled to one side by the reset traction steel cable. At this time, the sampling tube descends and protrudes out from the inside of the trapezoidal collecting bucket, realizing automatic opening and closing of the bottom end of the trapezoidal collecting bucket, facilitating the sampling tube to enter and exit, and avoiding leakage.

[0040] 3. The coal preparation sampling device and its use method, during multiple continuous sampling processes, the top end of the connecting hose moves with the sampling piece, and the bottom end of the connecting hose slides up and down inside the fixed tube, and the counterweight seat is used to keep the bottom end of the connecting hose inside the fixed tube as much as possible, so that the upper end of the connecting hose is in an inclined pulling state, which is convenient for material sliding. After one sampling is completed, it directly moves to the next point for secondary sampling, thereby realizing direct discharge of samples at any position during use, without the need for fixed-point return and the need to design mechanical conveying parts to transport materials, with low cost and faster and more convenient return. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0042] Figure 1 It is a schematic diagram of the overall outer surface structure of the present invention;

[0043] Figure 2 This is a schematic diagram of the structure of the sample receiving unit of the present invention;

[0044] Figure 3 This is a schematic diagram of the structure of the material guide pipe of the present invention;

[0045] Figure 4 This is a schematic diagram of the rotary coal storage structure of the present invention;

[0046] Figure 5 This is a schematic diagram of the structure of the suspension sampling unit of the present invention;

[0047] Figure 6 It is a schematic diagram of the structure of the horizontal movable suspension of the present invention;

[0048] Figure 7This is a schematic diagram of the outer surface structure of the lifting member of the present invention;

[0049] Figure 8 This is a schematic diagram of the structure of the sample collection mechanism of the present invention;

[0050] Fig. 9 This is an exploded view of the outer surface structure of the fixing plate of the present invention;

[0051] Fig.10 It is a schematic diagram of the outer surface structure of the sampling piece of the present invention;

[0052] Fig.11 This is a cross-sectional view of the internal structure of the sampling member of the present invention;

[0053] Fig.12 It is a cross-sectional view of the internal structure of the bidirectional transmission mechanism of the present invention;

[0054] Fig.13 This is a schematic diagram of the outer surface structure of the sampling bin of the present invention.

[0055] In the figure: 1. Suspended sampling unit; 11. Horizontal movable suspension; 111. Fixed bracket; 112. Driving screw rod; 113. Driving motor; 114. Moving bracket; 115. Suspended carrier; 116. Traveling chain; 117. Traveling motor; 12. Lifting member; 121. Lifting cylinder; 122. Positioning tube; 123. Fixed plate; 124. Connecting rod; 125. Positioning guide rail; 13. Sample collection mechanism; 131. Trapezoidal collecting bucket; 132. Anti-leakage baffle; 133. Slide rail; 134. Sealing traction spring; 135. Sliding ring; 136. Reset traction cable; 137. Bracket plate; 138. Memory spring; 139. Fixed pulley; 14. Sampling member; 141. Sampling tube; 142, driving seat; 143, sampling chamber; 144, drill bit; 145, servo motor; 146, two-way transmission mechanism; 1461, driving tube; 1462, rotating shaft; 1463, transmission tube; 1464, driving gear; 1465, passive gear; 1466, first ratchet; 1467, first pawl; 1468, second ratchet; 1469, second pawl; 2, sample collection unit; 21, material guide pipe; 211, connecting hose; 212, fixing pipe; 213, counterweight seat; 214, positioning rod; 22, rotating sample coal storage component; 221, material receiving seat; 222, material rack; 223, handle; 224, sampling port; 225, material discharge port; 226, sample tube. DETAILED DESCRIPTION

[0056] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0057] The embodiments of the present application provide a coal preparation sampling device and a method of using the same, thereby solving the problems of existing sampling devices, such as high cost, complicated sampling steps and inability to obtain accurate depth samples.

[0058] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0059] The embodiment of the invention discloses a coal preparation sampling device and a use method thereof.

[0060] According to the attached Figure 1-13 As shown, it includes a suspended sampling unit 1 and a sample receiving unit 2 connected to the bottom of one side of the suspended sampling unit 1, and the suspended sampling unit 1 includes a horizontal movable suspension 11 and a lifting member 12 installed at the bottom of the horizontal movable suspension 11;

[0061] The lifting member 12 moves along the x and y axes at the bottom of the horizontal movable suspension 11;

[0062] A sampling member 14 is fixedly mounted at the bottom of the lifting member 12. The sampling member 14 includes a sampling tube 141 and a drill bit 144 rotatably mounted at the bottom of the sampling tube 141. A plurality of sampling chambers 143 are rotatably mounted on the outer surface of the bottom of the sampling tube 141. A servo motor 145 is mounted at the top of the sampling tube 141. A bidirectional transmission mechanism 146 is mounted between the servo motor 145, the drill bit 144 and the sampling chamber 143.

[0063] The servo motor 145 rotates clockwise to drive the drill bit 144 to rotate clockwise through the bidirectional transmission mechanism 146;

[0064] The servo motor 145 rotates counterclockwise to drive the sampling bin 143 to rotate clockwise through the bidirectional transmission mechanism 146. One side of the sampling bin 143 is open, and its inner bottom is an inclined surface, which is inclined downward toward the open side to facilitate dumping of materials. At the same time, the other side of the sampling bin 143 is an arc surface, which forms a circle with the cross section of the bottom end of the sampling tube 141, so as to reduce the resistance when rotating downward into the coal pile;

[0065] A sample collecting mechanism 13 is fixedly mounted on the outer surface of the middle portion of the lifting member 12 . The sampling tube 141 passes through the sample collecting mechanism 13 . The sample collecting mechanism 13 is connected to the sample collecting unit 2 .

[0066] The horizontal movable suspension 11 includes a fixed bracket 111 and a movable bracket 114 longitudinally slidably arranged on the outer surface of the fixed bracket 111 . The bottom of the movable bracket 114 is laterally slidably connected to a suspension carrier plate 115 . The lifting member 12 is installed at the bottom of the suspension carrier plate 115 .

[0067] The middle part of the fixed bracket 111 is rotatably connected to a driving screw rod 112, one end of the fixed bracket 111 is fixedly installed with a driving motor 113, the output end of the driving motor 113 is fixedly connected to the driving screw rod 112, the top of the movable bracket 114 is threadedly connected to the driving screw rod 112, a walking chain 116 is installed inside the movable bracket 114, the suspension carrier plate 115 is fixedly connected to one side of the walking chain 116, and a walking motor 117 for driving the walking chain 116 is fixedly installed on the top of the movable bracket 114.

[0068] The lifting member 12 includes a lifting cylinder 121 fixedly arranged at the bottom of the suspension carrier plate 115, a driving seat 142 is fixedly connected between the output shaft of the lifting cylinder 121 and the sampling tube 141, positioning guide rails 125 are fixedly installed on both sides of the driving seat 142, positioning tubes 122 are fixedly arranged on both sides of the lifting cylinder 121, and the top of the positioning guide rail 125 is movably inserted in the positioning tube 122, and the sample collecting mechanism 13 includes a trapezoidal collecting bucket 131 fixedly arranged on the outer surface of the lifting cylinder 121, and a leakage-proof baffle 132 is slidably arranged on the outer surface of the bottom end of the trapezoidal collecting bucket 131.

[0069] A fixing plate 123 is fixedly arranged on the outer surface of the bottom end of the lifting cylinder 121, and connecting rods 124 are fixedly installed on both sides of the fixing plate 123. The bottom end of the connecting rod 124 is fixedly welded to the top of the trapezoidal collecting bucket 131. A sliding ring 135 is movably sleeved on the outer surface of the output shaft of the lifting cylinder 121. A reset traction steel cable 136 is installed between the sliding ring 135 and the anti-leakage baffle 132. A sealing traction spring 134 is installed on the side of the anti-leakage baffle 132 away from the reset traction steel cable 136. 141 moves upward into the trapezoidal collecting bucket 131, and the driving seat 142 is squeezed against the sliding ring 135, so that the memory spring 138 is compressed and the reset traction cable 136 is relaxed. At this time, under the pulling force of the sealing traction spring 134 and the gravity of the leakage-proof baffle 132, the leakage-proof baffle 132 slides downward along the slide rail 133, and finally the leakage-proof baffle 132 blocks the bottom opening of the trapezoidal collecting bucket 131 to prevent the coal from falling back into the coal car when the sample coal is dumped.

[0070] Slide rails 133 are fixedly provided on both sides of the bottom end of the trapezoidal collecting bucket 131, and a leakage-proof baffle 132 is slidably connected to the outer surface of the slide rail 133. A sealing traction spring 134 is arranged inside the slide rail 133. A bracket plate 137 is fixedly provided at the bottom of the fixed plate 123, and a memory spring 138 is installed between the bracket plate 137 and the sliding ring 135. A fixed pulley 139 is installed in the middle of a group of connecting rods 124, and a reset traction cable 136 passes through the inside of the memory spring 138 and the outer surface of the fixed pulley 139.

[0071] The servo motor 145 is fixedly mounted inside the driving seat 142, and the bidirectional transmission mechanism 146 includes;

[0072] A driving tube 1461, which is fixedly arranged at the output end of the servo motor 145;

[0073] A rotating shaft 1462, which is fixedly disposed on the top of the drill bit 144;

[0074] The transmission tube 1463 is rotatably arranged inside the bottom end of the sampling tube 141;

[0075] The rotating shaft 1462 passes through the transmission tube 1463, the top end of the rotating shaft 1462 is located inside the driving tube 1461, and the bottom end of the driving tube 1461 is located inside the transmission tube 1463;

[0076] The driving gear 1464 is fixedly sleeved on the outer surface of the bottom end of the transmission tube 1463;

[0077] A passive gear 1465 is fixedly disposed on the top of the sampling chamber 143, and the passive gear 1465 is meshed with the driving gear 1464;

[0078] A first ratchet 1467 is fixedly disposed on the top of the rotating shaft 1462, and a first ratchet 1466 is fixedly disposed on the inner wall of the driving tube 1461, and the first ratchet 1467 meshes with the first ratchet 1466;

[0079] A second ratchet 1468 is fixedly provided on the inner wall of the transmission tube 1463 , a second pawl 1469 is fixedly provided on the bottom end of the driving tube 1461 , the second pawl 1469 is meshed with the second ratchet 1468 , and the rotating shaft 1462 passes through the second pawl 1469 .

[0080] The sample receiving unit 2 comprises a material guiding pipe 21 and a rotating sample coal storage member 22 installed at the bottom end of the material guiding pipe 21;

[0081] The material guide pipe 21 includes a fixed pipe 212 and a connecting hose 211 movably plugged into the top of the fixed pipe 212, and the top of the connecting hose 211 is fixedly connected to the lower surface of the end of the trapezoidal collecting bucket 131;

[0082] The rotary sample coal storage element 22 comprises a material receiving seat 221 fixed at the bottom end of the fixed pipe 212 and a material rack 222 rotatably arranged inside the material receiving seat 221 , and a plurality of sample cylinders 226 are movably clamped on the outer side surface of the material rack 222 .

[0083] A positioning rod 214 is fixedly provided on the inner wall of the fixed tube 212, and a counterweight seat 213 is fixedly installed on the outer surface of the bottom end of the connecting hose 211, and the counterweight seat 213 is slidably connected to the outer surface of the positioning rod 214;

[0084] A handle 223 is rotatably provided on the top of the material receiving seat 221, and the handle 223 is fixedly connected to the material rack 222. A sampling port 224 is opened on one side of the material receiving seat 221, and a discharge port 225 is opened on the top of the other side of the material receiving seat 221, and the discharge port 225 is connected to the bottom end of the fixed pipe 212.

[0085] Working principle: When the device is in use, the transport vehicle loaded with coal drives under the device, and the driving motor 113 and the travel motor 117 are started at this time, so that the movable bracket 114 slides longitudinally along the fixed bracket 111, and the suspension carrier 115 slides transversely along the movable bracket 114, so that the sampling piece 14 moves to the target sampling position on the top of the carriage, and the lifting cylinder 121 is started at this time, and its output end drives the sampling piece 14 to move downward, and when the bottom end of the sampling tube 141 contacts the coal, the servo motor 145 is started, driving the driving tube 1461 to rotate clockwise, and the driving tube 1461 drives the rotating shaft 1462 to rotate through the first ratchet 1466 and the first pawl 1467, so that the drill bit 144 rotates clockwise, thereby cooperating with the lifting cylinder 121 so that the sampling tube 141 can be smoothly inserted to the target depth of the coal pile;

[0086] Then, the servo motor 145 is controlled to rotate counterclockwise, and the servo motor 145 drives the driving tube 1461 to rotate. The driving tube 1461 drives the transmission tube 1463 to rotate through the second pawl 1469 and the second ratchet 1468, and the transmission tube 1463 drives the passive gear 1465 to rotate through the driving gear 1464, so that the multiple groups of sampling bins 143 rotate. By controlling the speed of the servo motor 145 to make it rotate slowly, the multiple groups of sampling bins 143 rotate slowly by 360 degrees. When the sampling bin 143 rotates 180 degrees, the opening faces outward, and the external coal automatically enters the interior of the sampling bin 143. Then, the sampling bin 143 continues to rotate 180 degrees, and the opening of the sampling bin 143 faces inward, and the sampling is completed.

[0087] At this time, the servo motor 145 stops, and the lifting cylinder 121 contracts, driving the sampling tube 141 to move upward, so that the sampling tube 141 moves upward and enters the trapezoidal collecting bucket 131. When the driving seat 142 penetrates the top of the trapezoidal collecting bucket 131 and contacts the sliding ring 135, the bottom end of the sampling tube 141 just completely enters the trapezoidal collecting bucket 131. At this time, the lifting cylinder 121 continues to drive the sampling tube 141 to move upward. At this time, the sliding ring 135 is pushed upward, so that the memory spring 138 is compressed, and the reset traction cable 136 is relaxed. At this time, under the pulling force of the sealing traction spring 134 and the gravity of the anti-leakage baffle 132, the anti-leakage baffle 132 slides downward along the slide rail 133, and finally the anti-leakage baffle 132 blocks the bottom opening of the trapezoidal collecting bucket 131.

[0088] At this time, the servo motor 145 is controlled to rotate counterclockwise, so that it drives the multiple groups of sampling bins 143 to rotate 180 degrees through the second pawl 1469 and the second ratchet 1468. At this time, the sampling bin 143 is opened outward. Since the bottom of the sampling bin 143 is an outward inclined surface, under the action of gravity, the sample coal falls downward into the trapezoidal collecting bucket 131, and then slides to the bottom end into the connecting hose 211, and then enters the material receiving seat 221 through the fixed tube 212, and finally falls into the corresponding sample barrel 226. Then, by rotating the handle 223, the material rack 222 drives the sample barrel 226 to rotate to the sampling port 224, and then the sample barrel 226 is removed from the material rack 222 to complete the sampling, and then a new sample barrel 226 is placed to wait for the second sampling;

[0089] During the next sampling, the horizontal movable suspension 11 is used to drive the lifting member 12 and the sampling member 14 to move to the target sampling point, and then the output end of the lifting cylinder 121 moves downward. At this time, under the action of the memory spring 138, the sliding ring 135 slides downward, and the anti-leakage baffle 132 is pulled to one side by the reset traction cable 136. At this time, the sampling tube 141 descends, protrudes out from the inside of the trapezoidal collecting bucket 131, and moves downward for secondary sampling;

[0090] During multiple continuous sampling processes, the top end of the connecting hose 211 moves with the sampling piece 14, and the bottom end of the connecting hose 211 slides up and down inside the fixed tube 212, and the counterweight seat 213 is used to keep the bottom end of the connecting hose 211 inside the fixed tube 212 as much as possible, so that the upper end of the connecting hose 211 is in an inclined pulling state, which is convenient for material sliding. After one sampling is completed, it directly moves to the next point for secondary sampling, so that the sample can be directly discharged at any position during use, without the need for fixed-point return and the need to design mechanical conveying parts to transport materials, which is low in cost and faster and more convenient to return materials.

[0091] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A coal preparation sampling device, comprising a suspended sampling unit (1) and a sample receiving unit (2) connected to the bottom of one side of the suspended sampling unit (1), characterized in that: The suspended sampling unit (1) comprises a horizontally movable suspension (11) and a lifting member (12) installed at the bottom of the horizontally movable suspension (11); The lifting member (12) moves along the x-axis and the y-axis at the bottom of the horizontal movable suspension (11); A sampling member (14) is fixedly mounted on the bottom end of the lifting member (12), the sampling member (14) comprising a sampling tube (141) and a drill bit (144) rotatably mounted on the bottom end of the sampling tube (141), a plurality of sampling chambers (143) are rotatably mounted on the outer surface of the bottom of the sampling tube (141), a servo motor (145) is mounted on the top end of the sampling tube (141), and a bidirectional transmission mechanism (146) is mounted between the servo motor (145), the drill bit (144) and the sampling chamber (143); The servo motor (145) rotates clockwise to drive the drill bit (144) to rotate clockwise via the bidirectional transmission mechanism (146); The servo motor (145) rotates counterclockwise to drive the sampling chamber (143) to rotate clockwise via the bidirectional transmission mechanism (146); A sample collecting mechanism (13) is fixedly mounted on the middle outer surface of the lifting member (12), the sampling tube (141) passes through the sample collecting mechanism (13), and the sample collecting mechanism (13) is connected to the sample collecting unit (2); The lifting member (12) comprises a lifting cylinder (121) fixedly arranged at the bottom of the suspension carrier plate (115); a driving seat (142) is fixedly connected between the output shaft of the lifting cylinder (121) and the sampling tube (141); positioning guide rails (125) are fixedly installed on both sides of the driving seat (142); positioning tubes (122) are fixedly arranged on both sides of the lifting cylinder (121); the top ends of the positioning guide rails (125) are movably inserted into the positioning tubes (122); the sample collection mechanism (13) comprises a trapezoidal collection bucket (131) fixedly arranged on the outer surface of the lifting cylinder (121); and a leakage-proof baffle (132) is slidably arranged on the outer surface of the bottom end of the trapezoidal collection bucket (131); A fixing plate (123) is fixedly provided on the outer surface of the bottom end of the lifting cylinder (121), connecting rods (124) are fixedly installed on both sides of the fixing plate (123), the bottom end of the connecting rod (124) is fixedly welded to the top of the trapezoidal collecting bucket (131), a sliding ring (135) is movably sleeved on the outer surface of the output shaft of the lifting cylinder (121), a reset traction steel cable (136) is installed between the sliding ring (135) and the anti-leakage baffle (132), and a sealing traction spring (134) is installed on the side of the anti-leakage baffle (132) away from the reset traction steel cable (136); Slide rails (133) are fixedly provided on both sides of the bottom end of the trapezoidal collecting bucket (131), the anti-leakage baffle (132) is slidably connected to the outer surface of the slide rail (133), the sealing traction spring (134) is arranged inside the slide rail (133), a bracket plate (137) is fixedly provided at the bottom of the fixed plate (123), a memory spring (138) is installed between the bracket plate (137) and the sliding ring (135), a fixed pulley (139) is installed in the middle of a group of the connecting rods (124), and the reset traction steel cable (136) passes through the inside of the memory spring (138) and the outer surface of the fixed pulley (139); The sample collecting unit (2) comprises a material guiding pipe (21) and a rotating sample coal storage member (22) installed at the bottom end of the material guiding pipe (21); The material guiding pipe (21) comprises a fixed pipe (212) and a connecting hose (211) movably plugged into the top of the fixed pipe (212), the top end of the connecting hose (211) being fixedly connected to the lower surface of the end of the trapezoidal collecting bucket (131); The rotary sample coal storage element (22) comprises a material receiving seat (221) fixed to the bottom end of a fixed pipe (212) and a material rack (222) rotatably arranged inside the material receiving seat (221), and a plurality of sample barrels (226) are movably clamped on the outer side surface of the material rack (222).

2. A coal preparation sampling device according to claim 1, characterized in that: The horizontally movable suspension (11) comprises a fixed bracket (111) and a movable bracket (114) longitudinally slidably arranged on the outer surface of the fixed bracket (111); the bottom of the movable bracket (114) is laterally slidably connected to a suspension carrier plate (115); and the lifting member (12) is mounted on the bottom of the suspension carrier plate (115).

3. A coal preparation sampling device according to claim 2, characterized in that: The middle part of the fixed bracket (111) is rotatably connected to a driving screw rod (112); a driving motor (113) is fixedly mounted on one end of the fixed bracket (111); an output end of the driving motor (113) is fixedly connected to the driving screw rod (112); a top end of the movable bracket (114) is threadedly connected to the driving screw rod (112); a traveling chain (116) is installed inside the movable bracket (114); the suspension carrier plate (115) is fixedly connected to one side of the traveling chain (116); and a traveling motor (117) for driving the traveling chain (116) is fixedly mounted on the top of the movable bracket (114).

4. A coal preparation sampling device according to claim 3, characterized in that: The servo motor (145) is fixedly mounted inside the driving seat (142), and the bidirectional transmission mechanism (146) comprises: A driving tube (1461) fixedly disposed at an output end of the servo motor (145); A rotating shaft (1462) fixedly disposed on the top of the drill bit (144); A transmission tube (1463) rotatably disposed inside the bottom end of the sampling tube (141); The rotating shaft (1462) passes through the transmission tube (1463), the top end of the rotating shaft (1462) is located inside the driving tube (1461), and the bottom end of the driving tube (1461) is located inside the transmission tube (1463); A driving gear (1464) is fixedly sleeved on the outer surface of the bottom end of the transmission tube (1463); A passive gear (1465) is fixedly disposed on the top of the sampling chamber (143), and the passive gear (1465) is meshed with the driving gear (1464); A first ratchet pawl (1467) is fixedly disposed on the top end of the rotating shaft (1462), a first ratchet wheel (1466) is fixedly disposed on the inner wall of the driving tube (1461), and the first ratchet pawl (1467) meshes with the first ratchet wheel (1466); A second ratchet (1468) is fixedly provided on the inner wall of the transmission tube (1463), a second pawl (1469) is fixedly provided on the bottom end of the drive tube (1461), the second pawl (1469) is meshed with the second ratchet (1468), and the rotating shaft (1462) passes through the second pawl (1469).

5. A coal preparation sampling device according to claim 4, characterized in that: A positioning rod (214) is fixedly provided on the inner wall of the fixed tube (212), a counterweight seat (213) is fixedly installed on the outer surface of the bottom end of the connecting hose (211), and the counterweight seat (213) is slidably connected to the outer surface of the positioning rod (214); A handle (223) is rotatably provided on the top of the material receiving seat (221), and the handle (223) is fixedly connected to the material rack (222). A sampling port (224) is provided on one side of the material receiving seat (221), and a material discharge port (225) is provided on the top of the other side of the material receiving seat (221), and the material discharge port (225) is communicated with the bottom end of the fixed tube (212).

6. A method for using a coal preparation sampling device according to any one of claims 1 to 5, characterized in that: The following steps are involved: S1, horizontal positioning, starting the driving motor (113) and the traveling motor (117), causing the movable bracket (114) to slide longitudinally along the fixed bracket (111), and the suspension carrier (115) to slide transversely along the movable bracket (114), so that the sampling member (14) moves to a target sampling position on the top of the carriage; S2, depth positioning, the lifting cylinder (121) is started, driving the sampling member (14) to move downward, the servo motor (145) rotates clockwise, causing the drill bit (144) to rotate clockwise, and the lifting cylinder (121) cooperates to enable the sampling tube (141) to be smoothly inserted to the target depth of the coal pile, and the lifting cylinder (121) and the servo motor (145) stop; S3, sampling, the servo motor (145) rotates counterclockwise, causing the plurality of sampling chambers (143) to rotate, the sampling chambers (143) rotate 180 degrees, the openings face outwards, the coal automatically enters the sampling chambers (143), and then the sampling chambers (143) continue to rotate 180 degrees, the openings of the sampling chambers (143) face inwards, and sampling is completed; S4, sample return, the lifting cylinder (121) contracts, driving the sampling tube (141) to move upward into the trapezoidal collecting bucket (131), the driving seat (142) squeezes the sliding ring (135), so that the anti-leakage baffle (132) blocks the bottom opening of the trapezoidal collecting bucket (131), the servo motor (145) rotates counterclockwise, so that the opening of the sampling chamber (143) faces outward, and the sample coal falls downward into the trapezoidal collecting bucket (131), and falls into the sample tube (226) through the connecting hose (211), completing the sampling.

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