A scraper conveyor with tail coal cleaning structure

Abstract

The present invention relates to the field of transportation technology, specifically to a scraper conveyor with a tail coal cleaning structure, including a frame and a coal cleaning component, a transport trough is fixedly provided on the top of the frame, a bearing plate is fixedly installed between the front wall and the rear wall of the transport trough, and a discharge port is penetrated and opened at the bottom of one end of the transport trough away from the coal cleaning component. The gravity of the coal acts on the material-moving component along the oblique downward component of the bearing plate, causing multiple material-moving blocks of the material-moving component to bend, and the bending of the multiple material-moving blocks causes multiple tension springs to be elastically deformed, and the front and rear two torsion blocks are twisted along the right-angled bent rod under the pulling force of the multiple material-moving blocks, so that the two torsion blocks and the multiple material-moving blocks are similar to circular arcs, so that the coal is pulled toward the middle, so as to reduce the amount of coal leaking to the tail of the transport trough through the gap between the torsion blocks and the inner wall of the transport trough during the transmission process, thereby improving the efficiency of coal transportation.

Description

Technical Field

[0001] The invention relates to the technical field of transportation, in particular to a scraper conveyor with a tail coal cleaning structure. Background Art

[0002] Coal mines are areas where coal resources are mined in coal-rich mining areas. They are generally divided into underground coal mines and open-pit coal mines. After the coal is mined by a mining machine, conveying equipment is required to transport the mined coal blocks backward or outward. Scraper conveyors are one of the most widely used methods. They have the advantages of continuous, high-efficiency, large-angle transportation, safe operation, easy use and maintenance, and can shorten transportation distances, reduce project costs, and save manpower and material resources.

[0003] According to a Chinese patent with application publication number CN116729900A, a scraper conveyor with a tail coal cleaning structure is disclosed, which can carry out directional transportation of accumulated coal to avoid accumulation and reduce the failure rate of equipment. The cleaning mechanism cooperates with the transportation mechanism to clean the accumulated coal. In order to ensure the safety of coal during transportation, a wetting mechanism is provided on the equipment to keep the surface of the accumulated coal moist, which is more conducive to transportation. However, due to the gap between the scraper chain and the body frame of the above-mentioned scraper conveyor, a large amount of coal still slides through the gap during the process of transporting coal by the scraper conveyor, which greatly reduces the transportation efficiency of the scraper conveyor. For this reason, we propose a scraper conveyor with a tail coal cleaning structure to solve the above-mentioned technical problems. Summary of the invention

[0004] The present invention provides the following technical solution: a scraper conveyor with a tail coal cleaning structure, comprising a frame;

[0005] A transport trough is fixedly provided on the top of the frame, and a bearing plate is fixedly installed between the front wall and the rear wall of the transport trough;

[0006] A transport component is rotatably provided inside the transport trough, and the transport component includes two wheel axles rotatably installed at both ends of the transport trough, and two sprockets distributed front and back are fixedly installed on the outer walls of the two wheel axles, and two chains are rotatably provided inside the transport trough, and a plurality of equally distributed material shifting components are provided between the two chains, and the material shifting components include two torsion shifting blocks and a plurality of material gathering shifting blocks located between the two torsion shifting blocks, and two tension springs distributed up and down are fixedly installed between two adjacent material gathering shifting blocks, and two tension springs distributed up and down are also fixedly installed between the material gathering shifting block located at the outermost end and the torsion shifting block, and a rubber scraper is fixedly installed on one side of the two torsion shifting blocks and the plurality of material gathering shifting blocks.

[0007] As a preferred solution of the present invention, a discharge port is formed through the bottom of one end of the transport trough away from the gathering bucket, a discharge square bucket is fixedly installed around the bottom opening of the discharge port, and a recovery port is formed through the bottom of the tail end of the transport trough.

[0008] As a preferred solution of the present invention, the two chains are respectively located at the front end and the rear end of the transport trough, and the two chains are respectively wrapped around the periphery of the two sprockets at corresponding positions, a reduction motor is fixedly installed at one end of the front side of the transport trough, and the output shaft of the reduction motor is fixedly connected to one of the wheel axle ends, and a plurality of equally distributed right-angle bent rods are fixedly installed on the side close to the two chains, and the positions of the right-angle bent rods correspond one by one to the positions of the torsion shift block, and a twisting groove is provided at the end of the top of the torsion shift block away from the material gathering block, and the inner wall of the twisting groove is rotatably connected to the outer wall of the vertical section of the right-angle bent rod at the corresponding position, and the bottom of the torsion shift block and the bottom of the material gathering block are both in contact with the top of the supporting plate.

[0009] As a preferred solution of the present invention, a side surface of the torsion block close to the material gathering block and the front and back surfaces of the material gathering block are provided with telescopic square grooves, and telescopic connecting rods are slidably installed inside the telescopic square grooves, wherein the two adjacent front and rear ends of the telescopic connecting rods are hinged by an axle pin.

[0010] As a preferred solution of the present invention, it also includes a coal cleaning component, which includes a collecting bucket fixedly installed at the bottom of the transport trough, the collecting bucket is located at the periphery of the opening of the recovery port, a pumping shell is fixedly installed at the bottom of the collecting bucket, a pumping vertical shaft is rotatably installed inside the pumping shell, a spiral guide plate is fixedly installed on the upper part of the outer wall of the pumping vertical shaft, and a plurality of pumping blades are fixedly installed on the lower part of the outer wall of the pumping vertical shaft, two pumping holes are symmetrically opened on the outer wall of the pumping shell, and pumping pipes are fixedly installed at the periphery of the openings of the two pumping holes, and the pumping pipes extend to the tail top of the transport trough.

[0011] As a preferred solution of the present invention, the spiral guide plate is located inside the collecting bucket, a material inlet is opened through the top of the pumping shell, the inner wall of the collecting bucket and the interior of the pumping shell are connected through the opened material inlet, the multiple pumping blades are distributed at equal angles, and the multiple pumping blades are located inside the pumping shell.

[0012] As a preferred solution of the present invention, the pumping vertical shaft movably passes through the bottom of the pumping shell, and the pumping vertical shaft is rotatably connected to the bottom of the pumping shell through a bearing, a driven bevel gear is fixedly installed on the bottom of the pumping vertical shaft, a driving bevel gear is meshed with the bottom of the driven bevel gear, a driven horizontal shaft is fixedly installed on the inner wall of the driving bevel gear, a driven pulley is fixedly installed on one end of the driven horizontal shaft, wherein a wheel shaft end away from one end of the reduction motor is fixedly installed with the driving horizontal shaft through a coupling, a driving pulley is fixedly installed on the outer wall of the driving horizontal shaft, and a power belt is commonly sleeved between the driving pulley and the driven pulley.

[0013] As a preferred solution of the present invention, two first bearing seats distributed front and back are fixedly installed on the right end of the frame, the driven transverse shaft is rotatably installed between the two first bearing seats through bearings, a second bearing seat is fixedly installed on the right part of the frame, and the active transverse shaft is rotatably installed inside the second bearing seat through bearings.

[0014] As a preferred solution of the present invention, the size of the top opening of the gathering bucket is matched with the size of the opening of the recovery port, and the size of the bottom opening of the gathering bucket is matched with the size of the opening of the material introduction port.

[0015] As a preferred solution of the present invention, a 120-degree bending angle is provided in the middle of the pumping blade, and the bending direction of the pumping blade is the same as the rotation direction of the pumping vertical axis.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. In the present invention, the gravity exerted on the coal acts on the material-moving component along the oblique downward component of the support plate, causing the multiple material-moving blocks of the material-moving component to bend. The bending of the multiple material-moving blocks causes the multiple tension springs to be elastically deformed, and the front and rear two torsion blocks are twisted along the right-angle bent rod under the pulling force of the multiple material-moving blocks, so that the two torsion blocks and the multiple material-moving blocks are similar to circular arcs, thereby bringing the coal to the middle, so as to reduce the amount of coal leaking to the tail of the transport trough through the gap between the torsion blocks and the inner wall of the transport trough during transportation, thereby improving the efficiency of coal transportation.

[0018] 2. In the present invention, during the bending of two torsion blocks and multiple material gathering blocks, the rubber scraper is gradually stretched and straightened, thereby filling the gap between two adjacent material gathering blocks and the gap between the torsion block and the material gathering block, so that the coal material will not leak through the gap between two adjacent material gathering blocks and the gap between the torsion block and the material gathering block.

[0019] 3. In the present invention, during the bending of the multiple material gathering blocks, the two adjacent telescopic links are hinged to each other, causing the telescopic links to slide outward from the inside of the telescopic square groove for a distance. Through the mutual hinge action of the telescopic links and the sliding connection between the telescopic links and the telescopic square groove, on the one hand, the bending effect between the multiple material gathering blocks is ensured, and on the other hand, the multiple material gathering blocks and the two torsion blocks can be connected, so that the bottom of the multiple material gathering blocks can always ensure a good contact effect with the top of the supporting plate, avoiding the problem of material leakage between the bottom of the multiple material gathering blocks and the top of the supporting plate, and further ensuring the efficiency of coal transportation.

[0020] 4. In the present invention, the spiral guide plate and multiple pumping blades are driven to rotate together by the rotation of the pumping vertical axis. The rotation of the pumping vertical axis produces a downward spiral thrust effect, which can speed up the efficiency of coal entering the interior of the pumping shell, and also avoid the accumulation of coal inside the gathering bucket. The multiple pumping blades rotate and drive the coal inside the pumping shell to rotate quickly along the inside of the pumping shell, producing a pumping effect from the pumping hole to the inside of the pumping pipe, so that the coal inside the pumping shell is continuously pumped to the top of the supporting plate through the pumping pipe, and continues to be transported to one end of the discharge port by the rotating material shifting component. On the one hand, it avoids the accumulation of coal at the tail of the transport trough, and on the other hand, it also avoids the waste of coal.

[0021] 5. In the present invention, the pumping blades are provided with a 120-degree angle. Therefore, the pumping blades not only drive the coal inside the pumping casing to rotate and generate a centrifugal effect, but also exert an additional force on the coal to move toward the periphery, thereby improving the effect of pumping the coal into the pumping pipe and improving the coal pumping efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The structure of the present invention is schematically shown Figure 1 ;

[0023] Figure 2 The structure of the present invention is schematically shown Figure 2 ;

[0024] Figure 3 It is a schematic diagram of the structure of the transport component in the present invention;

[0025] Figure 4 For the present invention Figure 3 A schematic diagram of the enlarged structure of part A;

[0026] Figure 5 It is a structural schematic diagram of the coal cleaning component in the present invention;

[0027] Figure 6 It is a schematic diagram of the cross-sectional structure of the pumping housing in the present invention;

[0028] Figure 7It is a structural schematic diagram of the material shifting component in the present invention;

[0029] Figure 8 It is a schematic diagram of the cross-sectional structure of the twisting and shifting block and the material gathering and shifting block in the present invention;

[0030] Fig. 9 For the present invention Figure 8 A schematic diagram of the enlarged structure of part B;

[0031] Fig.10 It is a schematic diagram of the cross-sectional structure of the transport trough in the present invention;

[0032] Fig.11 It is a schematic diagram of the structure of the material shifting component in the present invention when transporting coal.

[0033] In the figure: 100, frame; 200, transport trough; 201, load plate; 202, discharge port; 203, discharge bucket; 204, recovery port; 300, transport component; 301, axle; 302, sprocket; 303, chain; 304, right-angle bending rod; 305, torsion block; 306, twisting groove; 307, material gathering block; 308, tension spring; 309, rubber scraper; 3010, reduction motor; 3011, telescopic square groove; 3012, telescopic connecting rod; 400 , coal cleaning parts; 401, gathering bucket; 402, pumping shell; 403, feed inlet; 404, pumping vertical shaft; 405, spiral guide plate; 406, pumping blade; 407, pumping hole; 408, pumping pipe; 409, driven bevel gear; 4010, driving bevel gear; 4011, driven horizontal shaft; 4012, first bearing seat; 4013, driven pulley; 4014, driving pulley; 4015, power belt; 4016, second bearing seat; 4017, driving horizontal shaft. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only 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.

[0035] See also Figure 1-Figure 11 The technical solution provided by the present invention specifically includes the following embodiments:

[0036] Embodiment 1

[0037] A scraper conveyor with a tail coal cleaning structure comprises a frame 100 and a coal cleaning component 400, a conveying trough 200 is fixedly provided on the top of the frame 100, a bearing plate 201 is fixedly installed between the front wall and the rear wall of the conveying trough 200, a discharge port 202 is penetrated through the bottom of one end of the conveying trough 200 away from the coal cleaning component 400, a discharge square bucket 203 is fixedly installed around the bottom opening of the discharge port 202, and a recovery port 204 is penetrated through the bottom of the tail end of the conveying trough 200;

[0038] The transport trough 200 is internally rotatably provided with a transport component 300, and the transport component 300 includes two axles 301 rotatably installed at both ends of the transport trough 200, and the outer walls of the two axles 301 are fixedly installed with two sprocket wheels 302 distributed front and back, and the transport trough 200 is internally rotatably provided with two chains 303, and the two chains 303 are respectively located at the front end and the rear end of the transport trough 200, and the two chains 303 are respectively connected around the outer peripheries of the two sprocket wheels 302 at the corresponding positions, and the two chains 303 There are multiple equally spaced material shifting components, which include two torsion shifting blocks 305 and multiple material gathering shifting blocks 307 located between the two torsion shifting blocks 305. Two tension springs 308 distributed vertically are fixedly installed between two adjacent material gathering shifting blocks 307, and two tension springs 308 distributed vertically are also fixedly installed between the material gathering shifting block 307 located at the outermost end and the torsion shifting block 305. A rubber scraper 309 is fixedly installed on one side of the two torsion shifting blocks 305 and the multiple material gathering shifting blocks 307.

[0039] A reduction motor 3010 is fixedly installed at one end of the front of the transport trough 200, and the output shaft of the reduction motor 3010 is fixedly connected to the shaft end of one of the wheel axles 301. A plurality of equally spaced right-angled bent rods 304 are fixedly installed on the side where the two chains 303 are close to each other, and the positions of the right-angled bent rods 304 correspond to the positions of the twisting blocks 305 one by one. A twisting groove 306 is provided at the end of the top of the twisting block 305 away from the material gathering block 307, and the inner wall of the twisting groove 306 is rotatably connected to the outer wall of the vertical section of the right-angled bent rod 304 at the corresponding position, and the bottom of the twisting block 305 and the bottom of the material gathering block 307 are both in contact with the top of the carrier plate 201;

[0040] Specifically, the output shaft of the reduction motor 3010 drives the wheel shaft 301 to rotate, which further drives the sprocket wheel 302 to rotate together, so that the front and rear chains 303 are in operation, and drive a plurality of material-pickup components to move along the top of the carrier plate 201, and transport the coal along the top of the carrier plate 201 to one end of the discharge port 202, and then the coal falls through the opened discharge port 202 and the discharge bucket 203. At the same time, in the process of transporting the coal, the gravity of the coal acts on the material-pickup component along the oblique downward component of the carrier plate 201, causing a plurality of material-collecting and shifting blocks 307 of the material-pickup component to bend (as shown in the attached figure). Fig.11 As shown in the figure, the bending of the multiple material gathering blocks 307 causes the multiple tension springs 308 to be elastically deformed, and the front and rear two torsion blocks 305 are twisted along the right-angle bent rod 304 under the pulling force of the multiple material gathering blocks 307, so that the two torsion blocks 305 and the multiple material gathering blocks 307 are similar to a circular arc shape, thereby bringing the coal material to the middle to reduce the amount of coal material leaking to the tail of the transport trough 200 through the gap between the torsion blocks 305 and the inner wall of the transport trough 200 during the transportation process, thereby improving the efficiency of coal material transportation. It should be noted that during the bending of the two torsion blocks 305 and the multiple material gathering blocks 307, the rubber scraper 309 is gradually stretched and straightened, thereby filling the gap between the two adjacent material gathering blocks 307 and the gap between the torsion block 305 and the material gathering block 307, so that the coal material will not leak through the gap between the two adjacent material gathering blocks 307 and the gap between the torsion block 305 and the material gathering block 307.

[0041] Embodiment 2

[0042] A telescopic square groove 3011 is provided on one side of the twisting block 305 close to the material gathering block 307 and on the front and back of the material gathering block 307. A telescopic connecting rod 3012 is slidably installed inside the telescopic square groove 3011, wherein the ends of two adjacent telescopic connecting rods 3012 are hinged by a shaft pin;

[0043] Specifically, in this embodiment, during the bending of the multiple material gathering and shifting blocks 307, the two adjacent telescopic links 3012 are hinged to each other, causing the telescopic links 3012 to slide outward from the inside of the telescopic square groove 3011 for a distance. Through the mutual hinge action of the telescopic links 3012 and the sliding connection between the telescopic links 3012 and the telescopic square groove 3011, on the one hand, the bending effect between the multiple material gathering and shifting blocks 307 is ensured, and on the other hand, the multiple material gathering and shifting blocks 307 and the two torsion shifting blocks 305 can be connected, so that the bottom of the multiple material gathering and shifting blocks 307 always ensures a good contact effect with the top of the supporting plate 201, thereby avoiding the problem of material leakage between the bottom of the multiple material gathering and shifting blocks 307 and the top of the supporting plate 201, and further ensuring the efficiency of coal transportation.

[0044] Embodiment 3

[0045] The coal cleaning component 400 includes a gathering bucket 401 fixedly installed at the bottom of the transport trough 200, the gathering bucket 401 is located at the periphery of the opening of the recovery port 204, a pumping shell 402 is fixedly installed at the bottom of the gathering bucket 401, a pumping vertical shaft 404 is rotatably installed inside the pumping shell 402, a spiral guide piece 405 is fixedly installed on the upper part of the outer wall of the pumping vertical shaft 404, and a plurality of pumping blades 406 are fixedly installed on the lower part of the outer wall of the pumping vertical shaft 404, two pumping holes 407 are symmetrically opened on the outer wall of the pumping shell 402, and pumping pipes 408 are fixedly installed at the periphery of the openings of the two pumping holes 407, and the pumping pipes 408 extend to the top end of the tail of the transport trough 200;

[0046] The spiral guide piece 405 is located inside the collecting bucket 401, and a feed inlet 403 is opened through the top of the pumping shell 402. The inner wall of the collecting bucket 401 and the inside of the pumping shell 402 are connected through the opened feed inlet 403. A plurality of pumping blades 406 are distributed at equal angles, and a plurality of pumping blades 406 are located inside the pumping shell 402. The top opening size of the collecting bucket 401 is adapted to the opening size of the recovery port 204, and the bottom opening size of the collecting bucket 401 is adapted to the opening size of the feed inlet 403.

[0047] The pumping vertical shaft 404 movably penetrates the bottom of the pumping housing 402, and the pumping vertical shaft 404 is rotatably connected to the bottom of the pumping housing 402 through a bearing, a driven bevel gear 409 is fixedly installed at the bottom of the pumping vertical shaft 404, a driving bevel gear 4010 is meshed at the bottom of the driven bevel gear 409, a driven horizontal shaft 4011 is fixedly installed on the inner wall of the driving bevel gear 4010, and a driven pulley 4013 is fixedly installed at one end of the driven horizontal shaft 4011, wherein an end of a wheel shaft 301 away from one end of the reduction motor 3010 is fixedly installed through a coupling. A driving transverse shaft 4017 is installed, a driving pulley 4014 is fixedly installed on the outer wall of the driving transverse shaft 4017, a power belt 4015 is sleeved between the driving pulley 4014 and the driven pulley 4013, two first bearing seats 4012 distributed front and back are fixedly installed on the right end of the frame 100, the driven transverse shaft 4011 is rotatably installed between the two first bearing seats 4012 through bearings, a second bearing seat 4016 is fixedly installed on the right part of the frame 100, and the driving transverse shaft 4017 is rotatably installed inside the second bearing seat 4016 through bearings;

[0048] Specifically, in the present embodiment, a small amount of coal leaks through the gap between the twisting block 305 and the inner wall of the transport trough 200 during the transmission process, and moves along the top of the carrying plate 201 toward the recovery port 204 under the action of gravity, and falls into the interior of the collecting bucket 401 through the opened recovery port 204, and then enters the interior of the pumping housing 402 through the bottom of the collecting bucket 401 and the opened material inlet 403. At the same time, the output shaft of the wheel shaft 301 also drives the active horizontal shaft 4017 to rotate through the coupling, and the active horizontal shaft 4017 rotates through the active pulley 4014 and the power belt 4015 to drive the driven pulley 4013, the driven horizontal shaft 4011 and the active bevel gear 4010 to rotate, and the active bevel gear 4010 rotates through the driven bevel gear 409 meshing therewith to drive the pumping vertical shaft 404. Rotation, the rotation of the pumping vertical shaft 404 drives the spiral guide plate 405 and multiple pumping blades 406 to rotate together. The rotation of the pumping vertical shaft 404 produces a downward spiral thrust effect, which can speed up the efficiency of coal entering the pumping shell 402, and also prevent the coal from stagnating inside the gathering bucket 401. The multiple pumping blades 406 rotate and drive the coal inside the pumping shell 402 to rotate quickly along the inside of the pumping shell 402, producing a pumping effect through the pumping hole 407 to the inside of the pumping pipe 408, so that the coal inside the pumping shell 402 is continuously pumped to the top of the supporting plate 201 through the pumping pipe 408, and continues to be transported to one end of the discharge port 202 by the rotating material-moving component. On the one hand, it avoids the accumulation of coal at the tail end of the transport trough 200, and on the other hand, it also avoids the waste of coal.

[0049] Furthermore, a 120-degree bending angle is provided in the middle of the pumping blade 406, and the bending direction of the pumping blade 406 is the same as the rotation direction of the pumping vertical axis 404; since the pumping blade 406 is provided with a 120-degree bending angle, the pumping blade 406 not only drives the coal inside the pumping casing 402 to rotate and produce a centrifugal effect, but also applies an additional force to the coal to move toward the periphery, thereby improving the effect of pumping the coal into the pumping pipe 408 and improving the coal pumping efficiency.

[0050] In the present scheme, a scraper conveyor with a tail coal cleaning structure is operated. The output shaft of the reduction motor 3010 drives the wheel shaft 301 to rotate, which further drives the sprocket 302 to rotate together, so that the front and rear chains 303 are in operation, and drive multiple material-pickup components to move along the top of the carrier plate 201, and transport the coal along the top of the carrier plate 201 to one end of the discharge port 202, and then the coal falls through the opened discharge port 202 and the discharge bucket 203. At the same time, in the process of transporting the coal, the gravity of the coal acts on the material-pickup component along the oblique downward component of the carrier plate 201, causing multiple material-collecting and shifting blocks 307 of the material-pickup component to bend (as shown in the attached figure). Fig.11As shown in the figure, the bending of the multiple material gathering blocks 307 causes the multiple tension springs 308 to be elastically deformed, and the front and rear two torsion blocks 305 are twisted along the right-angle bent rod 304 under the pulling force of the multiple material gathering blocks 307, so that the two torsion blocks 305 and the multiple material gathering blocks 307 are similar to a circular arc shape, thereby bringing the coal material to the middle, so as to reduce the amount of coal material leaking to the tail of the transport trough 200 through the gap between the torsion blocks 305 and the inner wall of the transport trough 200 during the transportation process, thereby improving the efficiency of coal material transportation. It should be noted that during the bending of the two torsion blocks 305 and the multiple material gathering blocks 307, the rubber scraper 309 is gradually stretched and straightened, thereby filling the gap between the two adjacent material gathering blocks 307 and the gap between the torsion blocks 305 and the material gathering blocks 307, so that the coal material will not pass through the adjacent Material leakage occurs at the gap between the two material gathering blocks 307 and the gap between the torsion block 305 and the material gathering block 307. Due to the mutual hinged action of the two adjacent telescopic connecting rods 3012, the telescopic connecting rod 3012 slides outward from the inside of the telescopic square groove 3011 for a distance. Through the mutual hinged action of the telescopic connecting rods 3012 and the sliding connection between the telescopic connecting rods 3012 and the telescopic square groove 3011, on the one hand, the bending effect between the multiple material gathering blocks 307 is guaranteed, and on the other hand, the multiple material gathering blocks 307 and the two torsion blocks 305 can be connected, so that the bottom of the multiple material gathering blocks 307 always ensures a good contact effect with the top of the supporting plate 201, avoiding the problem of material leakage between the bottom of the multiple material gathering blocks 307 and the top of the supporting plate 201, and further ensuring the efficiency of coal transportation.

[0051] During the transmission process, a small amount of coal leaks through the gap between the twisting block 305 and the inner wall of the transport trough 200, and moves along the top of the carrying plate 201 toward the recovery port 204 under the action of gravity, and falls into the interior of the collecting bucket 401 through the opened recovery port 204, and then enters the interior of the pumping housing 402 through the bottom of the collecting bucket 401 and the opened material inlet 403. At the same time, the output shaft of the wheel shaft 301 also drives the active horizontal shaft 4017 to rotate through the coupling, and the active horizontal shaft 4017 rotates through the active pulley 4014 and the power belt 4015 to drive the driven pulley 4013, the driven horizontal shaft 4011 and the active bevel gear 4010 to rotate, and the active bevel gear 4010 rotates through the driven bevel gear 409 meshing therewith to drive the pumping vertical shaft 404 to rotate. The rotation of the vertical shaft 404 drives the spiral guide plate 405 and the multiple pumping blades 406 to rotate together. The rotation of the vertical shaft 404 produces a downward spiral thrust effect, which can speed up the efficiency of coal entering the pumping shell 402, and also prevent the coal from stagnating inside the gathering bucket 401. The multiple pumping blades 406 rotate to drive the coal inside the pumping shell 402 to rotate quickly along the inside of the pumping shell 402, producing a pumping effect through the pumping hole 407 to the inside of the pumping pipe 408, so that the coal inside the pumping shell 402 is continuously pumped to the top of the supporting plate 201 through the pumping pipe 408, and continues to be transported to one end of the discharge port 202 by the rotating material-moving component. On the one hand, it avoids the accumulation of coal at the tail end of the transport trough 200, and on the other hand, it also avoids the waste of coal.

[0052] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A scraper conveyor with a tail coal cleaning structure, characterized in that: It comprises a frame (100), a transport component (300) and a coal cleaning component (400); A transport trough (200), wherein the top of the frame (100) is fixedly provided with the transport trough (200), and a bearing plate (201) is fixedly installed between the front wall and the rear wall of the transport trough (200); The transport trough (200) is internally provided with a transport component (300) for rotation. The transport component (300) comprises two wheel axles (301) rotatably mounted at both ends of the transport trough (200). Two sprocket wheels (302) distributed front and rear are fixedly mounted on the outer walls of the two wheel axles (301). The transport trough (200) is internally provided with two chains (303) for rotation. A plurality of equally spaced material shifting components are arranged between the two chains (303). The material shifting components comprise two torsion shifting blocks (301). 05) and a plurality of material gathering blocks (307) located between the two torsion blocks (305), two tension springs (308) distributed vertically are fixedly installed between two adjacent material gathering blocks (307), and two tension springs (308) distributed vertically are also fixedly installed between the material gathering block (307) located at the outermost end and the torsion block (305), and a rubber scraper (309) is fixedly installed on one side of the two torsion blocks (305) and the plurality of material gathering blocks (307); A discharge port (202) is provided through the bottom of one end of the transport trough (200) away from the coal cleaning component (400), a discharge square bucket (203) is fixedly installed around the bottom opening of the discharge port (202), and a recovery port (204) is provided through the bottom of the rear end of the transport trough (200); The two chains (303) are respectively located at the front end and the rear end of the transport trough (200), and the two chains (303) are respectively connected around the peripheries of the two sprocket wheels (302) at corresponding positions. A reduction motor (3010) is fixedly installed at one end of the front side of the transport trough (200), and the output shaft of the reduction motor (3010) is fixedly connected to the shaft end of one of the wheel shafts (301). A plurality of The right-angled bent rods (304) are evenly spaced, and the positions of the right-angled bent rods (304) correspond to the positions of the twisting blocks (305) one by one. The top of the twisting blocks (305) is provided with a twisting groove (306) at one end away from the material gathering block (307). The inner wall of the twisting groove (306) is rotatably connected to the outer wall of the vertical section of the right-angled bent rod (304) at the corresponding position. The bottom of the twisting block (305) and the bottom of the material gathering block (307) are both in contact with the top of the supporting plate (201).

2. A scraper conveyor with a tail coal cleaning structure according to claim 1, characterized in that: A telescopic square groove (3011) is provided on a side of the twisting block (305) close to the material gathering block (307) and on the front and back sides of the material gathering block (307). A telescopic connecting rod (3012) is slidably installed inside the telescopic square groove (3011), wherein the ends of two adjacent telescopic connecting rods (3012) are hinged by a shaft pin.

3. The scraper conveyor with a tail coal cleaning structure according to claim 2, characterized in that: The coal cleaning component (400) includes a collecting bucket (401) fixedly installed at the bottom of the transport trough (200), the collecting bucket (401) is located at the periphery of the opening of the recovery port (204), a pumping shell (402) is fixedly installed at the bottom of the collecting bucket (401), a pumping vertical shaft (404) is rotatably installed inside the pumping shell (402), a spiral guide plate (405) is fixedly installed on the upper part of the outer wall of the pumping vertical shaft (404), and a plurality of pumping blades (406) are fixedly installed on the lower part of the outer wall of the pumping vertical shaft (404), two pumping holes (407) are symmetrically opened on the outer wall of the pumping shell (402), and pumping pipes (408) are fixedly installed on the periphery of the openings of the two pumping holes (407), and the pumping pipes (408) extend to the top end of the tail of the transport trough (200).

4. The scraper conveyor with a tail coal cleaning structure according to claim 3, characterized in that: The spiral guide plate (405) is located inside the collecting bucket (401), and a feed inlet (403) is provided through the top of the pumping shell (402). The inner wall of the collecting bucket (401) and the interior of the pumping shell (402) are connected through the feed inlet (403). The plurality of pumping blades (406) are distributed at equal angles, and the plurality of pumping blades (406) are located inside the pumping shell (402).

5. The scraper conveyor with a tail coal cleaning structure according to claim 4, characterized in that: The pumping vertical shaft (404) movably penetrates the bottom of the pumping housing (402), and the pumping vertical shaft (404) is rotatably connected to the bottom of the pumping housing (402) via a bearing, a driven bevel gear (409) is fixedly installed at the bottom of the pumping vertical shaft (404), a driving bevel gear (4010) is meshed at the bottom of the driven bevel gear (409), and a driven horizontal shaft (4011) is fixedly installed on the inner wall of the driving bevel gear (4010). A driven pulley (4013) is fixedly mounted on one end of the driven transverse shaft (4011), wherein an end of a wheel shaft (301) away from one end of the reduction motor (3010) is fixedly mounted on a driving transverse shaft (4017) via a coupling, a driving pulley (4014) is fixedly mounted on the outer wall of the driving transverse shaft (4017), and a power belt (4015) is sleeved between the driving pulley (4014) and the driven pulley (4013).

6. The scraper conveyor with a tail coal cleaning structure according to claim 5, characterized in that: Two first bearing seats (4012) distributed front and rear are fixedly mounted on the right end of the frame (100); the driven transverse shaft (4011) is rotatably mounted between the two first bearing seats (4012) via bearings; a second bearing seat (4016) is fixedly mounted on the right part of the frame (100); and the active transverse shaft (4017) is rotatably mounted inside the second bearing seat (4016) via bearings.

7. The scraper conveyor with a tail coal cleaning structure according to claim 6, characterized in that: The size of the top opening of the gathering bucket (401) matches the size of the opening of the recovery port (204), and the size of the bottom opening of the gathering bucket (401) matches the size of the opening of the material introduction port (403).

8. The scraper conveyor with a tail coal cleaning structure according to claim 7, characterized in that: A 120-degree bending angle is provided in the middle of the pumping blade (406), and the bending direction of the pumping blade (406) is the same as the rotation direction of the pumping vertical axis (404).

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