Sampling device for chain bucket machine

Abstract

The invention relates to the technical field of cement production, in particular to a sampling device for a chain bucket conveyor, which comprises a material receiving and guiding hopper, a power transmission assembly, a first rotating shaft, a support piece, an inclined material guiding pipe, a splitting mechanism and a crushing homogenizer, the support piece is arranged on a machine head cover of the chain bucket conveyor, and the first rotating shaft is rotatably arranged on the support piece; the material receiving and guiding hopper is arranged in the middle of the first rotating shaft and can communicate with a discharging port of the chain bucket machine, and the material receiving and guiding hopper can communicate with a feeding port of the inclined material guiding pipe. A discharge port of the inclined guide pipe is communicated with a feed port of the dividing and shrinking mechanism, and a discharge port of the dividing and shrinking mechanism is communicated with a feed port of the crushing and homogenizing machine. The sampling device is simple in structure, the sampling efficiency and safety are remarkably improved, the labor intensity is reduced, a cement clinker sample is cement clinker in a throwing material curtain of a chain bucket machine, all clinker of a certain section in a hopper can be comprehensively obtained, and sampling has good representativeness.

Description

Technical Field

[0001] The invention relates to the technical field of cement production, in particular to a sampling device for a chain bucket conveyor. Background Art

[0002] Cement clinker used in cement production is often conveyed by chain bucket conveyors. During this conveying process, the cement clinker needs to be sampled and tested. Currently, sampling is done manually, with workers using sampling spoons to scoop clinker from several hoppers of the operating chain bucket conveyor every hour. The sample is then manually poured into a crusher, where it is crushed and mixed to produce a clinker sample. This sampling method is labor-intensive, unsafe, and inefficient. Furthermore, manual sampling typically only captures a portion of the clinker on the surface of the chain bucket conveyor hopper, which cannot accurately reflect the clinker quality. The sampled material is poorly representative, making it unsuitable for large-scale use. Summary of the Invention

[0003] The technical problem solved by the present invention is to provide a sampling device for a chain bucket conveyor with low labor intensity, high safety, high efficiency and good sampling representativeness.

[0004] The technical solution adopted by the present invention to solve the technical problem is: a sampling device for a chain bucket conveyor, comprising a material receiving and guiding hopper, a power transmission assembly, a first rotating shaft, a support, an inclined material guide pipe, a dividing and shrinking mechanism, and a crushing and homogenizing machine, wherein the support is arranged on the head cover of the chain bucket conveyor, the first rotating shaft is rotatably arranged on the support, the material receiving and guiding hopper is arranged in the middle of the first rotating shaft, and the material receiving and guiding hopper is located in the head cover; The feed port of the inclined material guide pipe is arranged in the machine head cover, the discharge port of the inclined material guide pipe is located outside the machine head cover, and the feed port of the inclined material guide pipe is located below the material receiving and guiding hopper; The power transmission assembly is connected to the first rotating shaft, and the power transmission assembly can rotate the first rotating shaft around its axial centerline, thereby causing the material receiving and guiding hopper to swing back and forth between the discharge port of the bucket chain conveyor and the feed port of the inclined material guide pipe. The material receiving and guiding hopper can be connected to the discharge port of the bucket chain conveyor, and the material receiving and guiding hopper can be connected to the feed port of the inclined material guide pipe. The material outlet of the inclined material guiding pipe is communicated with the material inlet of the fractionation and contraction mechanism, and the material outlet of the fractionation and contraction mechanism is communicated with the material inlet of the crushing and homogenizing machine.

[0005] Furthermore, the support member includes two bearing seats, the two bearing seats are arranged on the outer wall of the head cover, the first rotating shaft is rotatably arranged on the bearing seats through bearings, and the first rotating shaft is arranged horizontally.

[0006] Furthermore, a through hole is provided on the upper portion of the material receiving and guiding hopper, a shaft sleeve is fixedly provided at the through hole, the material receiving and guiding hopper passes through the shaft sleeve and is sleeved on the first rotating shaft, and the material receiving and guiding hopper can rotate around the first rotating shaft; At least one threaded hole is provided on the shaft sleeve, and a screw is provided in one of the threaded holes through threads. The screw can detachably fix the first rotating shaft in the shaft sleeve.

[0007] Furthermore, the power transmission assembly includes a support seat, a rotating seat, a cylinder and a vertical connecting rod. The rotating seat is rotatably set on the support seat through a second rotating shaft. The cylinder is horizontally set on the rotating seat. The outer end of the piston rod of the cylinder is rotatably connected to the lower end of the vertical connecting rod through a pin shaft. The upper end of the vertical connecting rod is connected to one end of the first rotating shaft, and the axial center line of the first rotating shaft and the axial center line of the second rotating shaft are set parallel to each other.

[0008] Furthermore, a limit block is provided on the inner wall of the machine head cover, and the limit block is used to prevent the material receiving and guiding hopper from entering the rotation space of the head wheel of the chain bucket conveyor.

[0009] Furthermore, the feed port of the inclined material guide tube is located at its inclined upper end, and the discharge port of the inclined material guide tube is located at its inclined lower end. It also includes at least one group of shock-absorbing spring assemblies, the shock-absorbing spring assemblies are arranged at intervals, and the inclined material guide tube is arranged on the shock-absorbing spring assembly.

[0010] Furthermore, the device further includes a speed regulating assembly, which includes a vibration mechanism and a restraining mechanism. The vibration mechanism includes a vibration motor and an adjustable base. The adjustable base is arranged on the outer wall of the inclined material guide tube. The adjustable base is provided with a circle of threaded through holes distributed at intervals. Connecting bolts are inserted into the threaded through holes at different positions to set the vibration motor at different positions on the adjustable base. The constraint mechanism includes a constraint plate, a connecting screw, a constraint spring and a fastening nut. The constraint plate is arranged on the outer wall of the inclined material guide tube. A connecting through hole is provided on the constraint plate. One end of the connecting screw is connected to the outer wall of the machine head cover, and the other end of the connecting screw is arranged through the connecting through hole. The constraint spring is sleeved on the connecting screw. The fastening nut is connected to the connecting screw through a thread, and the constraint spring is located between the fastening nut and the constraint plate.

[0011] Furthermore, a material distribution component is provided at the discharge port of the dividing and contracting mechanism, and the material distribution component includes a fixed feeding part, a swinging feeding part, a fixed discharging part, and a swinging power component. The fixed feeding part, the swinging feeding part, and the fixed discharging part are arranged in sequence from top to bottom. The fixed discharging part includes a feeding section and two discharging sections. The feeding section is connected to the two discharging sections, and the entrances of the two discharging sections are both located in the feeding section. A third rotating shaft is provided on both sides of the fixed feeding part, and a rotating hole is provided on both sides of the swinging feeding part. One third rotating shaft is matched and arranged in one rotating hole. The outlet of the swinging feeding part is provided in the feeding section. The swinging power assembly is connected to the side of the swinging feeding part, and the swinging power assembly can make the outlet of the swinging feeding part swing back and forth in the feeding section. It also includes a sub-retractable trough, one end of which is connected to a discharging section, and the other end of which is connected to a chain bucket conveyor; The other discharging section is connected to the feed port of the crushing homogenizer.

[0012] Furthermore, it also includes a crushing return trough, one end of which can be connected to the discharge port of the crushing homogenizer, and the other end of which is connected to the chain bucket conveyor.

[0013] Furthermore, it also includes a controller, and the power transmission component, the shrinking mechanism and the crushing homogenizer are all electrically connected to the controller.

[0014] The beneficial effects of the present invention are as follows: when the sampling device of the present invention is used to take cement clinker samples, the power transmission component is first controlled to work so that the material receiving hopper is connected to the discharge port of the chain bucket machine, and the cement clinker in the hopper of the chain bucket machine is received by the material receiving hopper through throwing; then the power transmission component is controlled to work so that the material receiving hopper is connected to the feed port of the inclined material guide pipe, and the cement clinker in the material receiving hopper is transported to the inclined material guide pipe, and then transported to the reduction mechanism by the inclined material guide pipe; finally, the cement clinker is reduced by the reduction mechanism and then sent to the crushing and homogenizing machine, and the cement clinker particles crushed and homogenized by the crushing and homogenizing machine are reduced in proportion to form samples, completing the cement clinker sampling in the chain bucket machine. It can be seen that the sampling device of the present invention has a simple structure. Compared with manual sampling, the sampling efficiency and safety are significantly improved, and the labor intensity is reduced; the cement clinker sample is the cement clinker in the material curtain thrown by the chain bucket conveyor, and all the clinker in a certain section in the hopper can be obtained more comprehensively, and the sampling is more representative; and the sampling device does not affect the normal operation of the chain bucket conveyor during sampling, which is conducive to large-scale use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a side structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the main structure of the present invention; Figure 3 It is a side view schematic diagram of the structure of the present invention; Figure 4 It is a schematic diagram of the structure of the main view of the present invention; Figure 5 yes Figure 4 Middle AA cross-sectional view; Figure 6 It is a schematic diagram of another part of the main structure of the present invention; Figure 7 It is a structural diagram of the material distribution component; Figure 8 It is a structural diagram of the fixed discharge part; Marked as: material receiving hopper 1, first rotating shaft 2, support 3, bearing seat 31, sleeve 32, screw 33, inclined material guide pipe 4, retraction mechanism 5, fixed feeding part 51, swinging feeding part 52, fixed discharging part 53, feeding section 531, discharging section 532, swinging power assembly 54, third rotating shaft 55, crushing homogenizer 6, chain bucket machine 7, head cover 71, support seat 81, rotating seat 82, cylinder 83, vertical connecting rod 84, second rotating shaft 85, vibration motor 91, adjustable base 92, connecting bolt 93, constraint plate 94, connecting screw 95, constraint spring 96, fastening nut 97, limit block 10, shock-absorbing spring assembly 11, retraction return trough 12, crushing return trough 13. DETAILED DESCRIPTION

[0016] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0017] like Figures 1 to 6 As shown, the sampling device for a chain bucket conveyor of the present invention includes a material receiving and guiding hopper 1, a power transmission assembly, a first rotating shaft 2, a support 3, an inclined material guide pipe 4, a dividing and shrinking mechanism 5, and a crushing and homogenizing machine 6. The support 3 is disposed on a head cover 71 of the chain bucket conveyor 7, the first rotating shaft 2 is rotatably disposed on the support 3, the material receiving and guiding hopper 1 is disposed in the middle of the first rotating shaft 2, and the material receiving and guiding hopper 1 is located in the head cover 71; The inclined material guide pipe 4 is arranged at an angle, the feed port of the inclined material guide pipe 4 is located at its inclined upper end, the discharge port of the inclined material guide pipe 4 is located at its inclined lower end, the feed port of the inclined material guide pipe 4 is arranged in the head cover 71, the discharge port of the inclined material guide pipe 4 is located outside the head cover 71, and the feed port of the inclined material guide pipe 4 is located below the material receiving hopper 1; The power transmission assembly is connected to the first rotating shaft 2, and the power transmission assembly can rotate the first rotating shaft 2 around its axial center line, so that the material receiving and guiding hopper 1 can swing back and forth between the discharge port of the chain bucket conveyor 7 and the feed port of the inclined guide pipe 4. The material receiving and guiding hopper 1 can be connected to the discharge port of the chain bucket conveyor 7, and the material receiving and guiding hopper 1 can be connected to the feed port of the inclined guide pipe 4; The discharge port of the inclined material guiding pipe 4 is communicated with the feed port of the fractionation and contraction mechanism 5 , and the discharge port of the fractionation and contraction mechanism 5 is communicated with the feed port of the crushing and homogenizing machine 6 .

[0018] When the chain bucket conveyor 7 conveys cement clinker, when the hopper of the chain bucket conveyor 7 rotates past the head wheel, the cement clinker is thrown into the discharge port of the chain bucket conveyor 7 due to inertia, forming a material curtain about 200 mm wide. The material receiving and guiding hopper 1 can be connected to the discharge port of the chain bucket conveyor 7, which means that: under the action of the power transmission component, the material receiving and guiding hopper 1 can be brought close to the discharge port of the chain bucket conveyor 7, and the cement clinker thrown out of the discharge port of the chain bucket conveyor 7 can be caught by the material receiving and guiding hopper 1 and stored in the material receiving and guiding hopper 1. The material receiving and guiding hopper 1 can be connected to the feed port of the inclined material guide pipe 4, which means that: under the action of the power transmission component, the material receiving and guiding hopper 1 can be brought close to the feed port of the inclined material guide pipe 4, and the cement clinker in the material receiving and guiding hopper 1 falls into the feed port of the inclined material guide pipe 4, completing the reception and feeding of the cement clinker.

[0019] When the sampling device of the present invention is used to obtain cement clinker samples, Figure 1 、 Figure 2 As shown, first, the power transmission component is controlled to work so that the material receiving hopper 1 is connected to the discharge port of the chain bucket conveyor 7, and the cement clinker in the hopper of the chain bucket conveyor is caught by the material receiving hopper 1 by throwing; then the power transmission component is controlled to work so that the material receiving hopper 1 is connected to the feed port of the inclined guide pipe 4, and the cement clinker in the material receiving hopper 1 is transported to the inclined guide pipe 4, and then transported to the shrinking mechanism 5 by the inclined guide pipe 4; finally, the cement clinker is shrunk by the shrinking mechanism 5 and transported to the crushing homogenizer 7, and the cement clinker particles crushed and homogenized by the crushing homogenizer 7 are shrunk in proportion to form samples, completing the cement clinker sampling work in the chain bucket conveyor 7.

[0020] The material receiving and guiding hopper 1 is preferably made of steel. Figure 5 As shown, the material receiving and discharging hopper 1 is a trough-shaped structure with one side open, and the opening position is the material receiving and discharging position. To facilitate the material receiving and discharging of the material receiving and discharging hopper 1, the material receiving and discharging hopper 1 is tilted when receiving material, and the lower end of the material receiving and discharging hopper 1 is closer to the chain bucket 7 than its upper end. The material receiving and discharging hopper 1 is in a vertical position or tilted position when discharging material. When tilted, the lower end of the material receiving and discharging hopper 1 is farther away from the chain bucket 7 than its upper end.

[0021] Specifically, the support member 3 mainly supports the first rotating shaft 2. In order to ensure the use effect of the support member 3, a preferred structure of the support member 3 of the present invention is: Figure 4 As shown, the support member 3 includes two bearing seats 31, and the two bearing seats 31 are arranged on the outer wall of the head cover 71. The first rotating shaft 2 is rotatably arranged on the bearing seats 31 through bearings, and the first rotating shaft 2 is arranged horizontally.

[0022] In order to make the material receiving and feeding hopper 1 adjust the material receiving and feeding angles according to the actual situation and ensure the use effect of the material receiving and feeding hopper 1, Figure 4 、 Figure 5As shown, the upper part of the material receiving and guiding hopper 1 is provided with a through hole, and a shaft sleeve 32 is fixedly provided at the through hole. The material receiving and guiding hopper 1 passes through the shaft sleeve 32 and is mounted on the first rotating shaft 2, and the material receiving and guiding hopper 1 can rotate around the first rotating shaft 2. The shaft sleeve 32 is provided with at least one threaded hole, and a screw 33 is threadedly set in a threaded hole. The screw 33 can detachably fix the first rotating shaft 2 in the shaft sleeve 32. When it is necessary to adjust the material receiving and feeding angle of the material receiving and guiding hopper 1, loosen the screw 33 so that the material receiving and guiding hopper 1 can rotate around the first rotating shaft 2. After the angle of the material receiving and guiding hopper 1 is adjusted to the right position, tighten the screw 33 to fix the first rotating shaft 2 in the shaft sleeve 32. The number of screws 33 is preferably 2 or 4, and the two screws 33 are distributed at a 90° angle. Another function of the shaft sleeve 32 is to protect the material receiving and guiding hopper 1 and the first rotating shaft 2, thereby increasing the service life of both.

[0023] The function of the power transmission assembly is to rotate the first rotating shaft 2 around its axial centerline, so that the material receiving and guiding hopper 1 swings back and forth between the discharge port of the chain bucket machine 7 and the feed port of the inclined guide pipe 4. In order to ensure the use effect of the power transmission assembly, a preferred structure of the power transmission assembly of the present invention is as follows; Figure 3 、 Figure 4 As shown, the power transmission assembly includes a support base 81, a rotating base 82, a cylinder 83, and a vertical connecting rod 84. The rotating base 82 is rotatably mounted on the support base 81 via a second rotating shaft 85. The cylinder 83 is horizontally mounted on the rotating base 82. The outer end of the piston rod of the cylinder 83 is rotatably connected to the lower end of the vertical connecting rod 84 via a pin. The upper end of the vertical connecting rod 84 is connected to one end of the first rotating shaft 2, and the axial centerline of the first rotating shaft 2 is parallel to the axial centerline of the second rotating shaft 85. The support base 81 is fixedly mounted on the ground. The working principle of the power transmission assembly is as follows: when the piston rod of the cylinder 83 is extended, it pushes the vertical connecting rod 84 to rotate clockwise. The rotation of the vertical connecting rod 84 drives the first rotating shaft 2 to rotate about its axial centerline, thereby driving the material receiving and guiding hopper 1 to approach the discharge port of the chain bucket conveyor 7, so that the cement clinker spilled from the discharge port of the chain bucket conveyor 7 can be received by the material receiving and guiding hopper 1 and stored in the material receiving and guiding hopper 1. When the piston rod of cylinder 83 contracts, it pulls vertical connecting rod 84 in a counterclockwise rotation. This rotation of vertical connecting rod 84 causes first rotating shaft 2 to rotate about its axial centerline, thereby moving material receiving and guiding hopper 1 closer to the feed opening of inclined material guide tube 4. The cement clinker in material receiving and guiding hopper 1 falls into the feed opening of inclined material guide tube 4, completing the cement clinker conveying. Second rotating shaft 85 compensates for the rotation angle of vertical connecting rod 84 to ensure effective operation.

[0024] In order to prevent the material receiving hopper 1 from affecting the normal operation of the chain bucket machine 7, Figure 4 As shown, a limit block 10 is provided on the inner wall of the machine head cover 71, and the limit block 10 is used to prevent the material receiving and guiding hopper 1 from entering the rotation space of the head wheel of the chain bucket conveyor.

[0025] The function of the inclined guide pipe 4 is to transport the cement clinker to the contraction mechanism 5. In order to facilitate the transportation of cement clinker, Figure 6 As shown, the feed port of the inclined material guiding pipe 4 is located at its inclined upper end, and the discharge port of the inclined material guiding pipe 4 is located at its inclined lower end.

[0026] Since the cement clinker in the material receiving and guiding hopper 1 is dropped into the feeding port of the inclined material guiding pipe 4, in order to improve the service life of the inclined material guiding pipe 4, Figure 6 As shown, the present invention is further provided with at least one group of shock-absorbing spring assemblies 11, the shock-absorbing spring assemblies 11 are arranged at intervals, the inclined material guide tube 4 is arranged on the shock-absorbing spring assemblies 11, and the shock-absorbing spring assemblies 11 are arranged on the ground.

[0027] In order to adjust the conveying speed of cement clinker in the inclined material guide pipe 4 according to actual conditions and improve the sampling effect, Figure 6 As shown, the present invention is also provided with a speed regulation component, which includes a vibration mechanism and a constraint mechanism. The vibration mechanism includes a vibration motor 91 and an adjustable base 92. The adjustable base 92 is arranged on the outer wall of the inclined material guide tube 4. The adjustable base 92 is provided with a circle of threaded through holes distributed at intervals. The connecting bolts 93 are inserted into the threaded through holes at different positions to set the vibration motor 91 at different positions of the adjustable base 92; the constraint mechanism includes a constraint plate 94, a connecting screw 95, a constraint spring 96 and a fastening nut 97. The constraint plate 94 is arranged on the outer wall of the inclined material guide tube 4. The constraint plate 94 is provided with a connecting through hole. One end of the connecting screw 95 is connected to the outer wall of the machine head cover 71, and the other end of the connecting screw 95 is arranged through the connecting through hole. The constraint spring 96 is sleeved on the connecting screw 95. The fastening nut 97 is connected to the connecting screw 95 by a thread, and the constraint spring 96 is located between the fastening nut 97 and the constraint plate 94. By installing the vibration motor 91 at different positions of the adjustable base 92, the vibration motor 91 and the inclined material guide pipe 4 present different angles, thereby changing the vibration size of the vibration motor 91 on the inclined material guide pipe 4; by tightening the nut 97 to squeeze the restraining spring 96, the free movement of the inclined material guide pipe 4 is adjusted, thereby achieving the purpose of adjusting the conveying speed and material layer thickness of the cement clinker in the inclined material guide pipe 4.

[0028] In order to more accurately reflect the quality of cement clinker, the number of cement clinker sampling times should be more. In order to reduce the workload of detection, the amount of sample taken each time should be small. Therefore, after the shrinking mechanism 5 shrinks the incoming cement clinker, a part of it enters the crushing homogenizer 7 to make samples, and the other part can be returned to the chain bucket machine 7. Specifically, Figure 2 、 Figure 7 and Figure 8As shown, a discharging assembly is provided at the discharging port of the dividing and shrinking mechanism 5, and the discharging assembly includes a fixed feeding portion 51, a swinging feeding portion 52, a fixed discharging portion 53, and a swinging power assembly 54. The fixed feeding portion 51, the swinging feeding portion 52, and the fixed discharging portion 53 are arranged in sequence from top to bottom. The fixed discharging portion 53 includes a feeding section 531 and two discharging sections 532. The feeding section 531 is connected to the two discharging sections 532, and the entrances of the two discharging sections 532 are both located in the feeding section 531; a third rotating shaft 55 is provided on both sides of the fixed feeding portion 51, and the swinging feeding portion 5 2 are provided with rotating holes on both sides, and a third rotating shaft 55 is matched with each rotating hole. The outlet of the swinging distribution part 52 is provided in the feed section 531. The swinging power assembly 54 is connected to the side of the swinging distribution part 52, and the swinging power assembly 54 can swing the outlet of the swinging distribution part 52 back and forth in the feed section 531. The swinging power assembly 54 also includes a retracting trough 12, one end of which is connected to a discharge section 532, and the other end of the retracting trough 12 is connected to the chain bucket conveyor 7; the other discharge section 532 is connected to the feed inlet of the crusher homogenizer 6. After passing through the retracting mechanism 5, the cement clinker enters the distribution assembly. When the distribution assembly is conveying cement clinker, the cement clinker passes through the fixed feed section 51, the swinging distribution part 52, and one of the discharge sections 532 in sequence. By controlling the outlet of the swinging distribution part 52 to be above the entrance of different discharge sections 532, the transportation and distribution of cement clinker is achieved. If the cement clinker is to be fed into the crusher and homogenizer 7, the outlet of the swinging distribution part 52 is swung to above the entrance of the discharge section 532 connected to the feed port of the crusher and homogenizer 6; if the cement clinker is to be returned to the chain bucket conveyor 7, the outlet of the swinging distribution part 52 is swung to above the retracting trough 12. The distribution assembly has a simple, split structure. The fixed feed part 51, the swinging distribution part 52, and the fixed discharge part 53 are all free of components and do not interfere with each other, making them less prone to blockage and leakage. The third rotating shaft 55 and the swinging power assembly 54 are both externally mounted and are not subject to the impact of the cement clinker, resulting in less wear and tear and less damage, thus reducing the need for repair and maintenance.

[0029] For example Figure 2 As shown, the present invention is further provided with a crushing and returning trough 13, one end of which is connected to the discharge port of the crushing and homogenizing machine 6, and the other end of which is connected to the chain bucket conveyor 7. The cement clinker particles crushed and homogenized by the crushing and homogenizing machine 6 are proportionally reduced to form samples, and the excess cement clinker particles are returned to the chain bucket conveyor 7 through the crushing and returning trough 13.

[0030] In order to further reduce labor intensity and improve the automation level of the entire sampling device, the present invention is further provided with a controller, and the power transmission component, the shrinking mechanism 5 and the crushing homogenizer 6 are all electrically connected to the controller.

[0031] In summary, the sampling device of the present invention has a simple structure. Compared with manual sampling, the sampling efficiency and safety are significantly improved, and the labor intensity is reduced. The cement clinker sample is the cement clinker in the material curtain thrown by the chain bucket 7. It can obtain all the clinker in a certain section in the hopper in a relatively comprehensive manner, and the sampling is more representative. Moreover, the sampling device does not affect the normal operation of the chain bucket 7 during sampling, which is conducive to large-scale use.

Claims

1. A sampling device for a chain bucket conveyor, characterized in that: The invention comprises a material receiving and guiding hopper (1), a power transmission assembly, a first rotating shaft (2), a support member (3), an inclined material guiding pipe (4), a contraction mechanism (5) and a crushing homogenizer (6), wherein the support member (3) is arranged on a head cover (71) of a chain bucket conveyor (7), the first rotating shaft (2) is rotatably arranged on the support member (3), the material receiving and guiding hopper (1) is arranged in the middle of the first rotating shaft (2), and the material receiving and guiding hopper (1) is located in the head cover (71); The feed port of the inclined material guide pipe (4) is arranged in the machine head cover (71), the discharge port of the inclined material guide pipe (4) is located outside the machine head cover (71), and the feed port of the inclined material guide pipe (4) is located below the material receiving and guiding hopper (1); The power transmission assembly is connected to the first rotating shaft (2), and the power transmission assembly can rotate the first rotating shaft (2) around its axial center line, thereby causing the material receiving and guiding hopper (1) to swing back and forth between the discharge port of the chain bucket conveyor (7) and the feed port of the inclined material guide pipe (4), and the material receiving and guiding hopper (1) can be connected to the discharge port of the chain bucket conveyor (7), and the material receiving and guiding hopper (1) can be connected to the feed port of the inclined material guide pipe (4); The discharge port of the inclined material guide pipe (4) is connected to the feed port of the fractionation mechanism (5), and the discharge port of the fractionation mechanism (5) is connected to the feed port of the crushing homogenizer (6).

2. The sampling device for a bucket chain conveyor according to claim 1, characterized in that: The support member (3) includes two bearing seats (31), the two bearing seats (31) are arranged on the outer wall of the head cover (71), the first rotating shaft (2) is rotatably arranged on the bearing seats (31) through bearings, and the first rotating shaft (2) is arranged horizontally.

3. The sampling device for a bucket chain conveyor according to claim 2, characterized in that: A through hole is provided on the upper portion of the material receiving and guiding hopper (1), a shaft sleeve (32) is fixedly provided at the through hole, the material receiving and guiding hopper (1) passes through the shaft sleeve (32) and is sleeved on the first rotating shaft (2), and the material receiving and guiding hopper (1) is capable of rotating around the first rotating shaft (2); At least one threaded hole is provided on the shaft sleeve (32), and a screw (33) is threadedly provided in one of the threaded holes. The screw (33) can detachably fix the first rotating shaft (2) in the shaft sleeve (32).

4. The sampling device for a bucket chain conveyor according to claim 1, wherein: The power transmission assembly includes a support base (81), a rotating base (82), a cylinder (83) and a vertical connecting rod (84), wherein the rotating base (82) is rotatably arranged on the support base (81) via a second rotating shaft (85), and the cylinder (83) is horizontally arranged on the rotating base (82). The outer end of the piston rod of the cylinder (83) is rotatably connected to the lower end of the vertical connecting rod (84) via a pin shaft, and the upper end of the vertical connecting rod (84) is connected to one end of the first rotating shaft (2), and the axial center line of the first rotating shaft (2) and the axial center line of the second rotating shaft (85) are arranged parallel to each other.

5. The sampling device for a bucket chain conveyor according to claim 1, wherein: A limiting block (10) is provided on the inner wall of the machine head cover (71), and the limiting block (10) is used to prevent the material receiving and guiding hopper (1) from entering the rotation space of the head wheel of the chain bucket conveyor.

6. The sampling device for a bucket chain conveyor according to claim 1, wherein: The feed port of the inclined material guide pipe (4) is located at its inclined upper end, and the discharge port of the inclined material guide pipe (4) is located at its inclined lower end. The inclined material guide pipe (4) further comprises at least one set of damping spring assemblies (11), wherein the damping spring assemblies (11) are arranged at intervals, and the inclined material guide pipe (4) is arranged on the damping spring assemblies (11).

7. The sampling device for a bucket chain conveyor according to claim 1, wherein: The speed regulating assembly further comprises a vibration mechanism and a restraining mechanism, the vibration mechanism comprising a vibration motor (91) and an adjustable base (92), the adjustable base (92) being arranged on the outer wall of the inclined material guide tube (4), the adjustable base (92) being provided with a circle of threaded through holes spaced apart, and connecting bolts (93) being inserted into the threaded through holes at different positions to set the vibration motor (91) at different positions of the adjustable base (92); The constraint mechanism includes a constraint plate (94), a connecting screw (95), a constraint spring (96) and a fastening nut (97), wherein the constraint plate (94) is arranged on the outer wall of the inclined material guide tube (4), and a connecting through hole is provided on the constraint plate (94), one end of the connecting screw (95) is connected to the outer wall of the machine head cover (71), and the other end of the connecting screw (95) is arranged through the connecting through hole, the constraint spring (96) is sleeved on the connecting screw (95), and the fastening nut (97) is connected to the connecting screw (95) through a thread, and the constraint spring (96) is located between the fastening nut (97) and the constraint plate (94).

8. The sampling device for a bucket chain conveyor according to claim 1, wherein: A discharging assembly is provided at the discharging port of the splitting and contracting mechanism (5), the discharging assembly comprising a fixed feeding portion (51), a swinging discharging portion (52), a fixed discharging portion (53), and a swinging power assembly (54). The fixed feeding portion (51), the swinging discharging portion (52), and the fixed discharging portion (53) are arranged in sequence from top to bottom. The fixed discharging portion (53) comprises a feeding section (531) and two discharging sections (532). The feeding section (531) is connected to the two discharging sections (532), and the entrances of the two discharging sections (532) are both located in the feeding section (531). A third rotating shaft (55) is provided on both sides of the fixed feeding portion (51), a rotating hole is provided on both sides of the swinging distribution portion (52), one third rotating shaft (55) is matched and provided in one rotating hole, an outlet of the swinging distribution portion (52) is provided in the feeding section (531), a swinging power assembly (54) is connected to the side of the swinging distribution portion (52), and the swinging power assembly (54) can make the outlet of the swinging distribution portion (52) swing back and forth in the feeding section (531); It also includes a sub-retractable trough (12), one end of which is connected to a discharge section (532), and the other end of which is connected to a chain bucket conveyor (7); Another discharge section (532) is connected to the feed port of the crushing homogenizer (6).

9. The sampling device for a bucket chain conveyor according to claim 1, wherein: It also includes a crushing return trough (13), one end of which can be connected to the discharge port of the crushing homogenizer (6), and the other end of which is connected to the chain bucket conveyor (7).

10. The sampling device for a bucket chain conveyor according to any one of claims 1 to 9, characterized in that: It also includes a controller, and the power transmission component, the shrinking mechanism (5) and the crushing homogenizer (6) are all electrically connected to the controller.

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