Sampling device for coal quality detection and analysis

Abstract

The invention discloses a sampling device for coal quality detection and analysis, which comprises a material guide hopper arranged at the output end of a belt, a sampling unit comprising a material receiving assembly extending into the material guide hopper through the material taking opening for sampling, and a material receiving assembly arranged on one side of the material guide hopper opposite to the belt, the vibration assembly is arranged at one end of the material receiving assembly, located on the outer side of the guide hopper and used for conducting vibration compaction on the material receiving assembly in the material taking process, and the driving assembly is arranged at the end, opposite to the material receiving assembly, of the vibration assembly and used for transferring the sampled material receiving assembly out of the guide hopper. And an unloading unit. The material receiving assembly is driven by the vibration assembly to vibrate, so that coal falling into the material receiving assembly keeps uniform and dense distribution, after the coal is full, the driving assembly drives the material receiving assembly through the vibration assembly to move into the material guide hopper from the output end of the belt, and the vibration assembly drives the material receiving assembly to vibrate again; therefore, the amount of coal sampled each time can be equally divided into a plurality of small samples.

Description

Technical Field

[0001] The present invention relates to the technical field of coal quality detection and analysis, and specifically provides a sampling device for coal quality detection and analysis of coal. Background Art

[0002] As one of the most important fossil fuels globally, the quality of coal directly affects power generation efficiency, environmental protection performance, and industrial production safety. The core of coal quality detection lies in obtaining representative samples, and its quality detection requires obtaining representative samples through processes such as sampling, crushing, and reduction. During the coal sampling process, multiple groups of coal need to be taken out from the conveyor belt transporting coal at regular intervals to analyze the coal quality data of the coal transported at different time periods. Although traditional sampling devices can achieve the basic effect of taking out coal, they have the following problems:

[0003] 1. Each time of sampling requires manual shoveling of coal on the conveyor belt in real-time with a sampling shovel, and the sampled coal after shoveling also needs to be evenly divided into multiple small samples, which is time-consuming and laborious;

[0004] 2. The amount of coal shoveled for each sampling cannot be kept the same, resulting in a large error in subsequent detection and analysis;

[0005] 3. When the humidity of coal is relatively high, a part of the coal sampled in the previous group adheres to the sampling shovel, and this coal adhering to the sampling shovel will be mixed with the coal sampled in the next group, further affecting the accuracy of coal quality detection and analysis data.

[0006] The above content is only used to assist in understanding the technical solution of the present invention and does not represent an admission that the above content is the closest prior art. Summary of the Invention

[0007] The purpose of the present invention is to provide a sampling device for coal quality detection and analysis of coal to solve the problems in the prior art that manual sampling is time-consuming and laborious and has a large error in coal quality detection and analysis data as mentioned in the above background art.

[0008] To achieve the above purpose, the present invention provides the following technical solutions:

[0009] A sampling device for coal quality detection and analysis of coal includes a feeding hopper installed at the output end of the belt. On the side of the feeding hopper opposite to the belt, there is a feeding port for sampling, and it further includes:

[0010] A sampling unit, including a receiving component extending into the interior of the feeding hopper through the feeding port for sampling, a vibration component provided at one end of the receiving component and located outside the feeding hopper for vibrating and compacting the receiving component during the feeding process, and a driving component provided at one end of the vibration component opposite to the receiving component for transferring the receiving component that has completed sampling out of the feeding hopper;

[0011] The discharging unit includes a sub-bin for separately packing the coal taken out by the material receiving component, and an ejecting component arranged above the sub-bin for ejecting the coal in the material receiving component.

[0012] Furthermore, the material receiving component includes:

[0013] A bearing plate, which is slidably inserted inside the sub-bin;

[0014] A plurality of support rods, which are fixedly connected at equal intervals to one side of the bearing plate where the material guiding hopper is located;

[0015] A material receiving cup, which is fixedly connected to one end of the support rod and corresponds to the support rod one by one, and is used for collecting the coal output by the belt;

[0016] A closing support, which is arranged at the lower opening of the material receiving cup and is used for closing the lower opening during the sampling process of the material receiving cup;

[0017] A telescopic shaft, which is fixedly connected to one side of the closing support and is used for driving the closing support to adjust the closing state of the lower opening of the material receiving cup;

[0018] A discharging mechanism, which is arranged at one end of the telescopic shaft opposite to the closing support and is located at the lower end of the bearing plate, and is used for driving the telescopic shaft to expand and contract.

[0019] Furthermore, the discharging mechanism includes:

[0020] A first fixing rod, which is fixedly connected to the lower end of the bearing plate. Inside the first fixing rod and outside the telescopic shaft, there is a hole for guiding the telescopic shaft;

[0021] A second fixing rod, which is fixedly connected to the lower end of the bearing plate and is located at one end of the first fixing rod opposite to the closing support;

[0022] A retracting rod, which is arranged between the first fixing rod and the second fixing rod. One ends of a plurality of the telescopic shafts are fixedly connected to one side of the retracting rod;

[0023] At least two first guide rods, one end of which is fixedly connected to the end of the retracting rod opposite to the telescopic rod, and the other end of which is slidably inserted inside the second fixing rod and is used for guiding the movement of the retracting rod;

[0024] A first return spring, which is sleeved outside the first guide rod and is located between the retracting rod and the second fixing rod, and is used for pressing the retracting rod tightly.

[0025] Furthermore, a wedge block is fixedly connected to the middle of the upper end of the retracting rod, and the wedge block penetrates from below the bearing plate to above the bearing plate;

[0026] The plane where the upper end of the wedge block is located is inclined, and is used to cooperate with the ejection assembly to drive the retraction rod to move;

[0027] Inside the carrier plate and outside the wedge block, there is a retraction groove for guiding the movement of the wedge block.

[0028] Furthermore, the vibration assembly includes:

[0029] A main board, which is slidably arranged inside the sub-packaging box;

[0030] A guide block, which is fixedly connected to one side of the main board where the carrier plate is located. The carrier plate is slidably sleeved outside the guide block, and a second guide groove for accommodating the guide block is arranged inside the carrier plate;

[0031] A first fixing frame, which is fixedly connected to the upper end of the main board;

[0032] A second fixing frame, which is fixedly connected to the upper end of the main board and on one side of the first fixing frame. Both the second fixing frame and the first fixing frame are in an inverted L shape;

[0033] A driving motor, which is installed at the lower end of the first fixing frame and directly above the carrier plate. The driving end of the driving motor is connected with a cam;

[0034] A swing block, which is fixedly connected to the upper end of the carrier plate and between the first fixing frame and the second fixing frame;

[0035] A second guide rod, one end of which is fixedly connected to the swing block, and the other end of which is slidably inserted inside the second fixing frame. A second return spring is sleeved outside the second guide rod and between the second fixing frame and the swing block, and is used to press the swing block tightly against the outside of the cam.

[0036] Furthermore, a limiting protrusion for limiting the main board and the carrier plate is arranged at the upper end of the guide block;

[0037] A groove for accommodating the limiting protrusion is arranged inside the second guide groove.

[0038] Furthermore, the driving assembly includes:

[0039] A rack, which is fixedly connected to one side of the vibration assembly and is used to drive the vibration assembly to move;

[0040] A limiting groove, which runs through the inside of the rack;

[0041] A limiting clamping plate, which is in a T shape. The limiting clamping plate passes through the limiting groove and is fixedly connected to the sub-packaging box, and is used to limit the rack;

[0042] A gear, meshed on one side of the rack, is used to drive the rack to move inside the sub-packing box. A motor for driving the gear to rotate is provided below the gear and inside the sub-packing box.

[0043] Furthermore, the discharging unit further includes:

[0044] A through-port, provided inside the sub-packing box, is used to accommodate the material receiving component, the vibration component, and the driving component;

[0045] A first guide groove, provided inside the sub-packing box and at the lower end of the through-port, is used to accommodate the lower part of the vibration component;

[0046] A receiving groove, provided inside the sub-packing box and below the through-port. A cup holder is inserted into the receiving groove. Sample cups corresponding to the material receiving cups one by one are placed at the upper end of the cup holder, and are used to accommodate the coal after discharging from the material receiving cups.

[0047] Furthermore, a plurality of discharge ports are provided inside the sub-packing box and between the through-port and the receiving groove. The discharge ports, the moving termination end of the material receiving cup, and the sample cups are on the same vertical axis, and are used to guide the coal in the material receiving cup into the sample cup.

[0048] Furthermore, the ejecting component includes:

[0049] A cylinder, installed on the upper part of the sub-packing box;

[0050] A lifting block, fixedly connected to the driving end of the cylinder;

[0051] A plurality of ejecting shafts, corresponding to the material receiving cups one by one, are fixedly connected to the lower end of the lifting block, and are used to eject the coal in the material receiving cup;

[0052] A push rod, fixedly connected to the lower end of the lifting block and directly above the feeding mechanism, is used to drive the feeding mechanism to move. The length of the push rod is greater than the length of the ejecting shaft.

[0053] Compared with the prior art, the beneficial effects of the present invention are:

[0054] 1. During the process of the receiving component receiving materials at the output end of the belt, the vibration component drives the receiving component to vibrate, making the coal falling into the receiving component evenly distributed and dense. After the receiving component is full of coal, the driving component drives the receiving component to move from the output end of the belt to the guiding hopper through the vibration component, and the vibration component drives the receiving component to vibrate again, so that the coal higher than the upper opening of the receiving component is shaken off, ensuring that the amount of coal sampled by the receiving component each time is consistent. Finally, the driving component drives the receiving component into the discharging area in the sub-packaging box through the vibration component, and the ejecting component ejects the sample in the receiving component into the sample cup, so that the coal can be automatically sampled, and the coal sampled each time can be equally divided into multiple small samples, improving the accuracy of the coal quality detection and analysis data. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0056] Figure 2 is a schematic diagram of the structure of the discharging unit of the present invention;

[0057] Figure 3 is a schematic diagram of the internal structure of the discharging unit of the present invention;

[0058] Figure 4 is a schematic diagram of the structure of the sampling unit of the present invention;

[0059] Figure 5 In the present invention Figure 4 is an enlarged view at position A;

[0060] Figure 6 is a schematic diagram of the structure of the vibration component of the present invention;

[0061] Figure 7 is a diagram showing the cooperation relationship between the receiving component and the vibration component of the present invention;

[0062] Figure 8 is a working state diagram of the driving component of the present invention;

[0063] Figure 9 is a schematic diagram of the receiving cup moving to a state coaxial with the discharge port of the present invention;

[0064] Figure 10 is a schematic diagram of the ejecting shaft ejecting the coal in the receiving cup of the present invention;

[0065] Figure 11 is a schematic diagram of the ejecting rod driving the closing support to separate from the bottom opening of the receiving cup of the present invention;

[0066] Figure 12 is a diagram showing the cooperation relationship between the rack and the limit clamping plate of the present invention.

[0067] Reference numerals: 100, belt; 101, material guiding hopper; 1011, material taking port; 1, discharging unit; 11, sub-packing box; 12, ejecting assembly; 121, cylinder; 122, lifting block; 123, ejecting shaft; 124, ejecting rod; 13, through port; 14, first guide groove; 141, sinking groove; 15, discharge port; 16, receiving groove; 17, sample cup; 18, cup holder; 2, sampling unit; 21, material receiving assembly; 210, bearing plate; 2101, retraction groove; 2102, second guide groove; 211, material receiving cup; 212, support rod; 213, closed support; 214, telescopic shaft; 215, material discharging mechanism; 2151, first fixing rod; 2152, retraction rod; 2153, wedge block; 2154, first guide rod; 2155, first return spring; 2156, second fixing rod; 22, vibration assembly; 221, main board; 222, guide block; 2221, limit block; 223, first fixing frame; 224, drive motor; 225, cam; 226, swing block; 227, second guide rod; 228, second return spring; 229, second fixing frame; 23, drive assembly; 231, rack; 232, limit groove; 233, limit clamping plate; 234, gear. Detailed implementation manners

[0068] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0069] Please refer to Figures 1-12 , the present invention provides a technical solution:

[0070] A sampling device for coal quality detection and analysis of coal includes a material guiding hopper 101 installed at the output end of a belt 100. A material taking port 1011 for sampling is provided on one side of the material guiding hopper 101 relative to the belt 100. The sampling device further includes:

[0071] A sampling unit 2, including a material receiving assembly 21 extending into the interior of the material guiding hopper 101 through the material taking port 1011 for sampling, a vibration assembly 22 provided at one end of the material receiving assembly 21 and located outside the material guiding hopper 101 for vibrating and compacting the material receiving assembly 21 during the material taking process, and a drive assembly 23 provided at one end of the vibration assembly 22 relative to the material receiving assembly 21 for transferring the material receiving assembly 21 after sampling out of the material guiding hopper 101;

[0072] A discharging unit 1, including a sub-packing box 11 for sub-packaging the coal taken out by the material receiving assembly 21, and an ejecting assembly 12 provided on the upper part of the sub-packing box 11 for ejecting the coal in the material receiving assembly 21.

[0073] It should be noted that during the process of the material receiving assembly 21 receiving materials at the output end of the belt 100, the vibration assembly 22 drives the material receiving assembly 21 to vibrate, so that the coal falling into the material receiving assembly 21 is kept evenly distributed and dense. After the coal is filled, the driving assembly 23 drives the material receiving assembly 21 through the vibration assembly 22 to move from the output end of the belt 100 to the guiding hopper 101. The vibration assembly 22 drives the material receiving assembly 21 to vibrate again, so that the coal higher than the upper opening of the material receiving assembly 21 is shaken off, ensuring that the amount of coal sampled by the material receiving assembly 21 each time remains consistent. Finally, the driving assembly 23 drives the material receiving assembly 21 through the vibration assembly 22 to enter the discharging position in the sub-packing box 11, and the ejecting assembly 12 ejects the sample in the material receiving assembly 21 into the sample cup 17, so that the coal can be automatically sampled, and the coal sampled each time can be equally divided into multiple small samples, improving the accuracy of the coal quality detection and analysis data.

[0074] As an improvement, as Figures 4-5 , Figure 7 shown, the material receiving assembly 21 includes:

[0075] A bearing plate 210, which is slidably inserted inside the sub-packing box 11;

[0076] A plurality of support rods 212, which are fixedly connected at equal intervals on one side of the bearing plate 210 located at the guiding hopper 101;

[0077] A material receiving cup 211, which is fixedly connected to one end of the support rod 212 and corresponds to the support rod 212 one by one, and is used for collecting the coal output by the belt 100;

[0078] A closing support 213, which is arranged at the lower opening of the material receiving cup 211 and is used for closing the lower opening during the sampling process of the material receiving cup 211;

[0079] A telescopic shaft 214, which is fixedly connected to one side of the closing support 213 and is used for driving the closing support 213 to adjust the closing state of the lower opening of the material receiving cup 211;

[0080] A discharging mechanism 215, which is arranged at one end of the telescopic shaft 214 opposite to the closing support 213 and is located at the lower end of the bearing plate 210, and is used for driving the telescopic shaft 214 to expand and contract.

[0081] Furthermore, as Figure 7 , Figure 11 shown, the discharging mechanism 215 includes:

[0082] A first fixing rod 2151, which is fixedly connected to the lower end of the bearing plate 210. A hole for guiding the telescopic shaft 214 is arranged inside the first fixing rod 2151 and on the outside of the telescopic shaft 214;

[0083] The second fixing rod 2156 is fixedly connected to the lower end of the bearing plate 210 and is located at one end of the first fixing rod 2151 opposite to the closing bracket 213;

[0084] The retracting rod 2152 is arranged between the first fixing rod 2151 and the second fixing rod 2156, and one ends of multiple groups of the telescopic shafts 214 are fixedly connected to one side of the retracting rod 2152;

[0085] At least two groups of first guide rods 2154 are provided, one end of each first guide rod 2154 is fixedly connected to the end of the retracting rod 2152 opposite to the telescopic rod, and the other end of each first guide rod 2154 is slidably inserted into the second fixing rod 2156 for guiding the movement of the retracting rod 2152;

[0086] The first return spring 2155 is sleeved outside the first guide rod 2154 and is located between the retracting rod 2152 and the second fixing rod 2156 for pressing the retracting rod 2152 tightly.

[0087] Furthermore, as Figures 5-7 shown, a wedge block 2153 is fixedly connected to the middle of the upper end of the retracting rod 2152, and the wedge block 2153 penetrates from below the bearing plate 210 to above the bearing plate 210;

[0088] The plane where the upper end of the wedge block 2153 is located is inclined for cooperating with the ejecting assembly 12 to drive the retracting rod 2152 to move;

[0089] A retracting groove 2101 for guiding the movement of the wedge block 2153 is provided inside the bearing plate 210 and outside the wedge block 2153.

[0090] As an improvement, as Figures 6-7 shown, the vibration assembly 22 includes:

[0091] The main board 221 is slidably arranged inside the sub-packing box 11;

[0092] The guide block 222 is fixedly connected to one side of the main board 221 where the bearing plate 210 is located, the bearing plate 210 is slidably sleeved outside the guide block 222, and a second guide groove 2102 for accommodating the guide block 222 is provided inside the bearing plate 210;

[0093] One end of the guide block 222 is fixedly connected with a limit block 2221 for cooperating with the swing block 226 to limit the bearing plate 210;

[0094] The first fixing frame 223 is fixedly connected to the upper end of the main board 221;

[0095] The second fixing frame 229 is fixedly connected to the upper end of the main board 221 and is located on one side of the first fixing frame 223. Both the second fixing frame 229 and the first fixing frame 223 are in an inverted L shape.

[0096] The driving motor 224 is installed at the lower end of the first fixing frame 223 and is located directly above the bearing plate 210. The driving end of the driving motor 224 is connected with a cam 225.

[0097] The swing block 226 is fixedly connected to the upper end of the bearing plate 210 and is located between the first fixing frame 223 and the second fixing frame 229.

[0098] One end of the second guide rod 227 is fixedly connected to the swing block 226, and the other end is slidably inserted into the second fixing frame 229. A second return spring 228 is sleeved outside the second guide rod 227 and between the second fixing frame 229 and the swing block 226, and is used to press the swing block 226 tightly against the outside of the cam 225.

[0099] Furthermore, as Figure 7 shown, a limiting protrusion for limiting the main board 221 and the bearing plate 210 is provided at the upper end of the guide block 222.

[0100] A groove for accommodating the limiting protrusion is provided inside the second guide groove 2102.

[0101] As an improvement, as Figure 8 , Figure 12 shown, the driving assembly 23 includes:

[0102] The rack 231 is fixedly connected to one side of the vibration assembly 22 and is used to drive the vibration assembly 22 to move.

[0103] The limiting groove 232 runs through the inside of the rack 231.

[0104] The limiting clamping plate 233 is in a T shape. The limiting clamping plate 233 passes through the limiting groove 232 and is fixedly connected to the sub-packaging box 11, and is used to limit the rack 231.

[0105] The gear 234 is engaged on one side of the rack 231 and is used to drive the rack 231 to move inside the sub-packaging box 11. A motor for driving the gear 234 to rotate is provided below the gear 234 and inside the sub-packaging box 11.

[0106] Furthermore, as Figures 3-4 , Figure 10 shown, the discharging unit 1 further includes:

[0107] The through port 13 is provided inside the sub-packaging box 11 and is used to accommodate the feeding component 21, the vibration component 22, and the driving component 23.

[0108] The first guide groove 14 is arranged inside the sub-packing box 11 and at the lower end of the through opening 13, and is used to accommodate the lower part of the vibration assembly 22;

[0109] The receiving groove 16 is arranged inside the sub-packing box 11 and below the through opening 13. A cup holder 18 is inserted into the receiving groove 16. A sample cup 17 corresponding to the receiving cup 211 one by one is placed at the upper end of the cup holder 18, and is used to accommodate the coal after the receiving cup 211 unloads the material.

[0110] Furthermore, as Figure 10 shown, a plurality of discharge ports 15 are arranged inside the sub-packing box 11 and between the through opening 13 and the receiving groove 16. The discharge ports 15, the moving end termination of the receiving cup 211, and the sample cup 17 are on the same vertical axis, and are used to guide the coal in the receiving cup 211 into the sample cup 17;

[0111] The inner diameter of the discharge port 15 is larger than the inner diameter of the receiving cup 211, and the inner diameter of the receiving cup 211 is larger than the outer diameter of the ejecting shaft 123.

[0112] Among them, as Figures 10-11 shown, the ejecting assembly 12 includes:

[0113] A cylinder 121, which is installed on the upper part of the sub-packing box 11;

[0114] A lifting block 122, which is fixedly connected to the driving end of the cylinder 121;

[0115] A plurality of ejecting shafts 123, which are in one-to-one correspondence with the receiving cups 211, and are fixedly connected to the lower end of the lifting block 122, and are used to eject the coal in the receiving cups 211;

[0116] An ejecting rod 124, which is fixedly connected to the lower end of the lifting block 122 and is directly above the feeding mechanism 215, and is used to drive the feeding mechanism 215 to move. The length of the ejecting rod 124 is greater than the length of the ejecting shaft 123, so as to ensure that after the closing bracket 213 is completely separated from the receiving cup 211 under the driving action of the ejecting rod 124, the ejecting shaft 123 then enters the receiving cup 211;

[0117] A sinking groove 141 for accommodating the ejecting rod 124 is arranged at the lower end of the first guide groove 14 and directly below the ejecting rod 124. The opening of the retracting groove 2101 can accommodate the wedge block 2153 and the ejecting rod 124 at the same time.

[0118] It should be added that a conveyor belt is provided below the outlet of the material guiding hopper 101 in the present invention for conveying the coal discharged from the lower outlet of the material guiding hopper 101 to the next production line. The conveyor belt is not shown in the figure. In addition, the lower part of the material taking port 1011 in the present invention is inclined to re-introduce the coal shaken out of the receiving cup 211 that has moved into the area of the material taking port 1011 into the material guiding hopper 101. When the cam 225 in the present invention stops rotating each time, the convex part of the cam 225 disengages from the side surface of the swing block 226 to ensure that one side of the bearing plate 210 is tightly pressed against one side of the limit block 2221.

[0119] It should be noted that: in the specific implementation process of the present invention, as Figures 1-5 shown, the belt 100 continuously feeds the coal into the material guiding hopper 101 for discharging. When sampling the coal conveyed by the belt 100, a plurality of receiving cups 211 are moved through the material taking port 1011 to directly below the discharging position of the belt 100, and the lower opening of the receiving cup 211 is closed by the closing support 213. The driving motor 224 is started, and the driving motor 224 drives the swing block 226 to reciprocally compress the second return spring 228 through the cam 225. The swing block 226 drives the bearing plate 210 to reciprocally move along the guide block 222. The bearing plate 210 drives the receiving cup 211 to reciprocally vibrate through the support rod 212, so that during the process of receiving materials in the receiving cup 211, the fallen coal can be evenly and densely distributed in the receiving cup 211, ensuring that the amount of coal loaded in each receiving cup 211 is consistent and improving the accuracy of subsequent test and analysis data;

[0120] As Figures 1-5 , Figure 7 shown, during the process of the bearing plate 210 driving the receiving cup 211 to vibrate through the support rod 212, the bearing plate 210 also drives the closing support 213 to vibrate under the action of the telescopic shaft 214 through the first fixing rod 2151, so that the closing support 213 vibrates synchronously with the receiving cup 211, avoiding the receiving cup 211 from leaking due to the disengagement of the closing support 213 from the receiving cup 211;

[0121] As Figures 7-8As shown in the figure, when the coal in the receiving cup 211 is full, the motor at the lower end of the gear 234 is started, so that the motor drives the rack 231 to move backward along the limit clamping plate 233 through the gear 234. The rack 231 drives the bearing plate 210 to move through the main board 221 under the action of the guide block 222. The bearing plate 210 drives the plurality of receiving cups 211 filled with coal and the corresponding closed supports 213 to move from the material guide hopper 101 to the internal area of the material taking port 1011 through the support rods 212. At this time, the driving motor 224 is started again. The driving motor 224 drives the bearing plate 210 to perform the above-mentioned vibration work again through the cam 225 under the action of the swing block 226, so that the coal in the receiving cup 211 that is higher than the opening height of the receiving cup 211 is shaken off into the material taking port 1011. Subsequently, the coal falling in the internal area of the material taking port 1011 slides along the material taking port 1011 into the material guide hopper 101, ensuring that the coal quantity in each receiving cup 211 is equal for each sampling, and further reducing the error of subsequent coal quality detection and analysis;

[0122] As Figures 9-11 shown in the figure, subsequently, the motor at the lower end of the gear 234 continues to drive the rack 231 to move backward along the limit clamping plate 233 through the gear 234. The rack 231 drives the bearing plate 210 to move through the main board 221 under the action of the guide block 222. The bearing plate 210 drives the plurality of receiving cups 211 and the corresponding closed supports 213 to move from the internal area of the material taking port 1011 to directly above the discharge port 15. At this time, the ejector shaft 123, the receiving cup 211, the closed support 213, and the discharge port 15 are on the same vertical axis. The cylinder 121 is started, and the cylinder 121 drives the ejector shaft 123 and the ejector rod 124 to move downward synchronously through the lifting block 122. Since the ejector rod 124 is longer than the ejector shaft 123, the ejector rod 214 first drives the wedge block 2153 to move along the retraction groove 2101 by cooperating with the inclined surface at the upper end of the wedge block 2153. The wedge block 2153 drives the first guide rod 2154 to move along the second fixing rod 2156 through the retraction rod 2152, so that the first return spring 2155 is gradually compressed. At the same time, the retraction rod 2152 drives the telescopic shaft 214 to move along the first fixing rod 2151. The telescopic shaft 214 drives the closed support 213 to move along the bottom of the receiving cup 211, so that the closed support 213 is separated from the receiving cup 211. At this time, the coal inside the receiving cup 211 falls into the corresponding sample cups 17 through the discharge port 15 respectively, so that automatic sampling can be carried out, and the sampled samples can be automatically and equally distributed into multiple samples, improving the sampling efficiency;

[0123] As Figures 10-11As shown, in addition, after the ejector rod 124 pushes the wedge block 2153 for a certain distance and disengages from the inclined surface at the top of the wedge block 2153, the ejector rod 124 enters the sinking groove 141 through the retraction groove 2101. During this process, the ejection shaft 123 moves from the upper end of the receiving cup 211 along the inner wall of the receiving cup 211 to the lower opening, so that the coal adhered to the inner wall of the receiving cup 211 falls into the sample cup 17, avoiding the influence of the coal residue adhered to the inner wall during the previous sampling on the accuracy of the subsequent coal quality test and analysis data when the receiving cup 211 takes the next sample;

[0124] Finally, the air cylinder 121 drives the lifting block 122 to move upward to reset, and the closing support 213 closes the lower opening of the receiving cup 211, completing a coal sampling operation. For the coal sample in the sample cup 17, the cup holder 18 can be pulled out along the receiving groove 16 to take out multiple sample cups 17.

[0125] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0126] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sampling device for coal quality detection and analysis, comprising a guide hopper (101) installed at the output end of a belt (100), wherein a material taking port (1011) for sampling is provided on a side of the guide hopper (101) opposite to the belt (100), characterized in that: Also includes: The sampling unit (2) comprises a material receiving component (21) extending through a material taking port (1011) into the interior of the material guide hopper (101) for sampling, a vibration component (22) provided at one end of the material receiving component (21) and located outside the material guide hopper (101) for vibrating and compacting the material receiving component (21) during the material taking process, and a driving component (23) provided at one end of the vibration component (22) opposite to the material receiving component (21) for transferring the material receiving component (21) after sampling from the material guide hopper (101); The unloading unit (1) comprises a packing box (11) for packing coal taken out from a docking assembly (21), and an ejection assembly (12) arranged on the upper part of the packing box (11) for ejecting coal in the docking assembly (21).

2. A sampling device for coal quality detection and analysis according to claim 1, characterized in that: The material receiving assembly (21) comprises: A carrying plate (210) is slidably inserted into the packaging box (11); A plurality of support rods (212) are provided and fixedly connected at equal intervals to one side of the bearing plate (210) located at the guide hopper (101); A receiving cup (211), fixedly connected to one end of the support rod (212) and corresponding one-to-one with the support rod (212), and used for collecting the coal output by the belt (100); A closing support (213) is provided at the lower opening of the receiving cup (211) and is used to close the lower opening of the receiving cup (211) during the sampling process; A telescopic shaft (214) is fixedly connected to one side of the closing support (213) and is used to drive the closing support (213) to adjust the closing state of the lower end opening of the docking material cup (211); The material discharge mechanism (215) is arranged at one end of the telescopic shaft (214) relative to the closed support (213) and located at the lower end of the bearing plate (210), and is used to drive the telescopic shaft (214) to extend and retract.

3. A sampling device for coal quality detection and analysis according to claim 2, characterized in that: The material discharge mechanism (215) comprises: A first fixing rod (2151) fixedly connected to the lower end of the carrying plate (210), wherein a hole for guiding the telescopic shaft (214) is provided inside the first fixing rod (2151) and on the outside of the telescopic shaft (214); A second fixing rod (2156) is fixedly connected to the lower end of the carrying plate (210) and is located at one end of the first fixing rod (2151) that is opposite to the closed support (213); A retreat rod (2152) is arranged between the first fixed rod (2151) and the second fixed rod (2156), and one end of the plurality of telescopic shafts (214) is fixedly connected to one side of the retreat rod (2152); The first guide rod (2154) is provided with at least two groups, one end of which is fixedly connected to one end of the retreat rod (2152) relative to the telescopic rod, and the other end of which is slidably inserted into the second fixed rod (2156) to guide the movement of the retreat rod (2152); The first return spring (2155) is sleeved on the outside of the first guide rod (2154) and located between the retreat rod (2152) and the second fixing rod (2156), and is used to tighten the retreat rod (2152).

4. A sampling device for coal quality detection and analysis according to claim 3, characterized in that: A wedge block (2153) is fixedly connected to the middle of the upper end of the retreat rod (2152), and the wedge block (2153) passes through from the bottom of the bearing plate (210) to the top of the bearing plate (210); The plane on which the upper end of the wedge block (2153) is located is inclined, and is used to cooperate with the ejection assembly (12) to drive the retreat rod (2152) to move; A retreat groove (2101) for guiding the movement of the wedge block (2153) is provided inside the bearing plate (210) and outside the wedge block (2153).

5. A sampling device for coal quality detection and analysis according to claim 2, characterized in that: The vibration assembly (22) comprises: A main board (221) is slidably disposed inside the packaging box (11); A guide block (222) is fixedly connected to the main board (221) on one side of the carrier plate (210); the carrier plate (210) is slidably sleeved on the outside of the guide block (222); and a second guide groove (2102) for accommodating the guide block (222) is provided inside the carrier plate (210); A first fixing frame (223) fixedly connected to the upper end of the main board (221); A second fixing frame (229) is fixedly connected to the upper end of the main board (221) and is located on one side of the first fixing frame (223), and the second fixing frame (229) and the first fixing frame (223) are both in an inverted L shape; A driving motor (224) is mounted at the lower end of the first fixing frame (223) and is located directly above the bearing plate (210), and a driving end of the driving motor (224) is connected to a cam (225); A swing block (226) is fixedly connected to the upper end of the bearing plate (210) and is located between the first fixing frame (223) and the second fixing frame (229); The second guide rod (227) has one end fixedly connected to the pendulum block (226) and the other end slidably inserted into the second fixing frame (229). A second return spring (228) is sleeved on the outside of the second guide rod (227) and between the second fixing frame (229) and the pendulum block (226) for pressing the pendulum block (226) against the outside of the cam (225).

6. A sampling device for coal quality detection and analysis according to claim 5, characterized in that: The upper end of the guide block (222) is provided with a limiting protrusion for limiting the main board (221) and the bearing board (210); A groove for accommodating the limiting protrusion is provided inside the second guide groove (2102).

7. A sampling device for coal quality detection and analysis according to claim 1, characterized in that: The driving assembly (23) comprises: A rack (231) fixedly connected to one side of the vibration component (22) and used to drive the vibration component (22) to move; A limiting groove (232) is provided through the interior of the rack (231); The limiting clamping plate (233) is T-shaped, and the limiting clamping plate (233) passes through the limiting groove (232) and is fixedly connected to the packaging box (11) for limiting the rack (231); The gear (234) is meshed with one side of the rack (231) and is used to drive the rack (231) to move inside the packaging box (11). A motor for driving the gear (234) to rotate is provided at the lower part of the gear (234) and inside the packaging box (11).

8. A sampling device for coal quality detection and analysis according to claim 2, characterized in that: The unloading unit (1) further comprises: The through opening (13) is arranged inside the packaging box (11) and is used to accommodate the material docking assembly (21), the vibration assembly (22), and the driving assembly (23); A first guide groove (14) is provided inside the packaging box (11) and is located at the lower end of the through opening (13), and is used to accommodate the lower part of the vibration assembly (22); The receiving groove (16) is arranged inside the subpackaging box (11) and below the through opening (13). A cup holder (18) is inserted into the receiving groove (16). A sample cup (17) corresponding to the receiving cup (211) is placed on the upper end of the cup holder (18) for receiving the coal after the receiving cup (211) discharges the coal.

9. A sampling device for coal quality detection and analysis according to claim 8, characterized in that: A plurality of discharge ports (15) are provided inside the dispensing box (11) and between the through port (13) and the containing groove (16); the discharge ports (15) are located on the same vertical axis as the moving end of the receiving cup (211) and the sample cup (17), and are used to guide the coal in the receiving cup (211) into the sample cup (17).

10. A sampling device for coal quality detection and analysis according to claim 9, characterized in that: The ejection assembly (12) comprises: A cylinder (121) is installed on the upper part of the packaging box (11); A lifting block (122) fixedly connected to the driving end of the cylinder (121); The ejector shaft (123) is provided in multiple groups and corresponds to the receiving cup (211) one by one, and is fixedly connected to the lower end of the lifting block (122) and is used to eject the coal in the receiving cup (211); The push rod (124) is fixedly connected to the lower end of the lifting block (122) and is located directly above the material discharge mechanism (215), and is used to drive the material discharge mechanism (215) to move. The length of the push rod (124) is greater than the length of the ejection shaft (123).

Images