Dredging device for raw coal bunker

Abstract

The invention relates to the technical field of raw coal bins, in particular to a dredging device for a raw coal bin, which comprises a mounting frame, the mounting frame is provided with a driving device and dredging bins, the dredging bins comprise a first dredging bin, a second dredging bin and a third dredging bin, and the first dredging bin, the second dredging bin and the third dredging bin are sequentially arranged on the mounting frame from top to bottom; and the driving device drives the first dredging bin, the second dredging bin and the third dredging bin to reversely rotate pairwise. The inner cavities of the first dredging bin, the second dredging bin and the third dredging bin are conical cavities, the conical cavities are coaxially arranged, the outer walls are cylinders, the cylinders are coaxially arranged, and the central axes of the conical cavities and the central axis of the cylinders of the outer walls are eccentrically arranged. A plurality of elastic pushing pieces are arranged on the second dredging bin, the elastic pushing pieces rotate on the annular track, the central axis of the annular track and the central axis of the outer cylindrical wall of the second dredging bin are eccentrically arranged, and the elastic pushing pieces stretch out and draw back in the rotating process.

Description

Technical Field

[0001] This invention relates to the field of raw coal storage technology, and in particular to a dredging device for raw coal storage. Background Technology

[0002] Raw coal is usually stored in open-air sheds, which easily absorbs moisture and causes "coal sticking and clumping." For mines, coal feeding systems often experience blockages in raw coal silos. Currently, most unclogging devices use vibration and impact to clear blockages, requiring manual tapping of the raw coal silo for unclogging. This method is inefficient for blockages caused by damp coal dust accumulation and large chunks of coal. Structural modifications to existing raw coal silos would require significant alterations to the silo body, affecting structural strength and increasing costs. Therefore, a new technical solution is needed. Summary of the Invention

[0003] In order to overcome the shortcomings and deficiencies of the existing technology, the purpose of this invention is to provide a dredging device for raw coal bunkers, which is installed above the raw coal bunker and connected to the raw coal bunker. It pre-treats the "sticky coal and clumped coal" before it enters the raw coal bunker, so as to prevent blockage and improve efficiency.

[0004] The technical solution adopted in this invention is: A dredging device for raw coal bunkers includes a mounting frame, which further includes a drive device mounting frame and a dredging chamber mounting frame. A drive device is mounted on the drive device mounting frame. A dredging chamber is disposed vertically through the dredging chamber mounting frame, comprising a first dredging chamber, a second dredging chamber, and a third dredging chamber. The drive device drives the first, second, and third dredging chambers to rotate, with the first and second dredging chambers rotating in opposite directions. The inner cavities of the first, second, and third dredging chambers are conical cavities, coaxially arranged, and their outer walls are cylindrical, coaxially arranged, with the central axis of the conical cavity eccentrically aligned with the central axis of the outer cylindrical wall. Rolling auxiliary components are provided on the connecting end faces of the second and third unblocking chambers. The rolling auxiliary components include ball bearing annular grooves and balls disposed in the annular grooves on the connecting end faces of the first, second, and third unblocking chambers. Several elastic pushers are evenly distributed on the cavity wall of the second unblocking chamber. Each elastic pusher includes a pusher column, one end of which is a conical tip facing the inner cavity of the second unblocking chamber. A pulley is provided at the other end of the pusher column, and a ring track is provided to match the pulley. The ring track is set on the unblocking chamber mounting frame, and the central axis of the ring track is eccentrically set with the central axis of the outer cylindrical wall of the second unblocking chamber. A spring is provided between the pulley and the outer wall of the second unblocking chamber, and the spring is sleeved on the pusher column.

[0005] A first bearing is fitted onto the outer wall of the first unblocking chamber. The first bearing is mounted on the unblocking chamber mounting frame. A dust cover is installed above the first bearing, and a first support cover is installed below it. A second unblocking chamber is connected to the bottom of the first unblocking chamber. A second bearing is fitted onto the upper end of the outer wall of the second unblocking chamber, and a third bearing is fitted onto the lower end. The second and third bearings are mounted on the unblocking chamber mounting frame. A second support cover is installed above the second bearing, and a third support cover is installed below it. A fourth support cover is installed above the third bearing, and a fifth support cover is installed below it. A third unblocking chamber is connected to the bottom of the second unblocking chamber. A fourth bearing is fitted onto the bottom of the outer wall of the third unblocking chamber, and the fourth bearing is mounted on the unblocking chamber mounting frame.

[0006] The inner wall of the first unblocking chamber is provided with several first protrusions, the inner wall of the second unblocking chamber is provided with several second protrusions, and the inner wall of the third unblocking chamber is provided with several third protrusions.

[0007] The bottom end face of the first unclogging chamber is provided with a first ball bearing groove, and the top end face of the second unclogging chamber is provided with a second ball bearing groove. The first ball bearing groove and the second ball bearing groove are matched and set together to form a circular groove, and a ball bearing is set in the circular groove.

[0008] The bottom end face of the second unclogging chamber is provided with a third ball bearing groove, and the top end face of the third unclogging chamber is provided with a fourth ball bearing groove. The third ball bearing groove and the fourth ball bearing groove are matched and combined to form a circular groove, and a ball bearing is set in the circular groove.

[0009] The inner side of the first ball ring groove is provided with a downwardly inclined first protective wall, the inner side of the second ball ring groove is provided with a first inclined wall, the first inclined wall and the first protective wall have the same inclination angle, the inner side of the third ball ring groove is provided with a downwardly inclined second protective wall, and the inner side of the fourth ball ring groove is provided with a second inclined wall, the second inclined wall and the first protective wall have the same inclination angle.

[0010] A pulley groove is provided on the inner wall of the circular track, and the pulley slides in the pulley groove.

[0011] The pulley is also equipped with a guide and limiting assembly, which includes a first mounting plate, a first sliding limiting wheel, a second mounting plate, and a second sliding limiting wheel. The first mounting plate and the second mounting plate are symmetrically arranged on the pulley. The overhanging end of the first mounting plate is located above the annular track, and the overhanging end of the second mounting plate is located below the annular track. The first sliding limiting wheel is provided at the overhanging end of the first mounting plate, and the second sliding limiting wheel is provided at the overhanging end of the second mounting plate. A first limiting ring groove is provided on the upper end surface of the annular track, and a second limiting ring groove is provided on the lower end surface. The first sliding limiting wheel rolls in the first limiting ring groove, and the second sliding limiting wheel rolls in the second limiting ring groove.

[0012] A first brush group is also provided on the bottom end face of the first unblocking compartment, with the brush ends of the first brush group facing the top end face of the second unblocking compartment. A second brush group is also provided on the bottom end face of the second unblocking compartment, with the brush ends of the second brush group facing the top end face of the third unblocking compartment.

[0013] The drive unit includes a motor, with a first sprocket at the output shaft end of the motor, and a second sprocket matching the first sprocket. The second sprocket is mounted on a first drive shaft, which is vertically mounted on a drive unit mounting frame. The second sprocket is located in the middle of the first drive shaft. A first gear is mounted above the second sprocket, and a second gear meshes with the first gear. The second gear is mounted on a second drive shaft, which is vertically mounted on a drive unit mounting frame. The second drive shaft has a fifth sprocket and a sixth sprocket, with a chain wound around the fifth and sixth sprockets and simultaneously wound around a second drain chamber. A third sprocket is mounted on the upper part of the first drive shaft, with a chain wound around the third sprocket and simultaneously wound around the first drain chamber. A fourth sprocket is mounted on the lower part of the first drive shaft, with a chain wound around the fourth sprocket and simultaneously wound around the third drain chamber.

[0014] The beneficial effects of this invention are: This invention discloses a dredging device for a raw coal bunker, comprising a mounting frame, on which a driving device and dredging chambers are integrated. The dredging chambers are installed at the entrance of the raw coal bunker channel. The dredging chambers include a first dredging chamber, a second dredging chamber, and a third dredging chamber, rotatably mounted on the mounting frame from top to bottom. The driving device drives them to rotate, with the first and second dredging chambers rotating in opposite directions, and the second and third dredging chambers rotating in opposite directions. The inner cavities of the first, second, and third dredging chambers are conical cavities, coaxially arranged, and their outer walls are cylindrical, also coaxially arranged. The central axis of the conical cavity is eccentrically aligned with the central axis of the outer cylindrical wall. The dredging chambers rotate in opposite directions, resulting in higher dredging efficiency. The second dredging chamber is equipped with several elastic pushers that rotate on a circular track. The central axis of the circular track is eccentrically aligned with the central axis of the outer cylindrical wall of the second dredging chamber. During rotation, the elastic pushers extend and retract, breaking up and clearing lumps of coal within the second dredging chamber. Attached Figure Description

[0015] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described below in conjunction with the accompanying drawings. However, the embodiments in the drawings do not constitute any limitation on the present invention. For those skilled in the art, other drawings can be obtained based on the following drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure; Figure 2 A schematic diagram of the installation structure of the dredging compartment and its mounting frame; Figure 3 This is a schematic diagram of the first dredging chamber structure; Figure 4 This is a schematic diagram of the second dredging compartment structure; Figure 5 This is a schematic diagram of the third dredging compartment structure; Figure 6 A schematic diagram of the internal structure of the warehouse; Figure 7 A schematic diagram of the installation structure for the dredging compartment; Figure 8 for Figure 7 A partial enlarged view of the structure of region A in the middle; Figure 9 for Figure 7 A partial enlarged view of the structure of region B in the middle; Figure 10 This is a schematic diagram of the flexible drainage component structure; Figure 11 This is a schematic diagram of a circular track structure; Figure 12 This is a schematic diagram of the guide and limit component structure.

[0017] In the diagram: 1-Mounting bracket, 101-Drive unit mounting bracket, 102-Drainage compartment mounting bracket. 2-Drive unit, 201-Motor, 202-First sprocket, 203-Second sprocket, 204-First drive shaft, 205-First gear, 206-Third sprocket, 207-Fourth sprocket, 208-Second gear, 209-Second drive shaft, 210-Fifth sprocket, 211-Sixth sprocket 3-First unblocking chamber, 301-First conical cavity, 302-First boss, 303-First chain tooth ring, 304-First ball ring groove, 305-First protective wall. 4-Second unblocking chamber, 401-Second conical cavity, 402-Second boss, 403-Second chain tooth ring, 404-Third chain tooth ring, 405-Guide mounting hole, 406-Second ball ring groove, 407-First inclined wall, 408-Third ball ring groove, 409-Second protective wall 5-Third unblocking chamber, 501-Third conical cavity, 502-Third boss, 503-Fourth chain tooth ring, 504-Fourth ball ring groove, 505-Second inclined wall. 6-Elastic pusher component; 601-Pusher column; 602-Pulley; 603-Spring; 604-Guide and limiting assembly; 6041-First mounting plate; 6042-First sliding limiting wheel; 6043-Second mounting plate; 6044-Second sliding limiting wheel; 605-Annular track; 6051-Pulley annular groove; 6052-First limiting annular groove; 6053-Second limiting annular groove 7-Dustproof cover, 8-First bearing, 9-First support cover, 10-Second support cover, 11-Second bearing, 12-Third support cover, 13-Fourth support cover, 14-Third bearing, 15-Fifth support cover, 16-Fourth bearing, 17-First brush group, 18-Second brush group, 19-Ball bearing. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0019] It should be noted that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0020] like Figure 1 , Figure 2 As shown, a dredging device for a raw coal bunker includes a mounting frame 1, which includes a drive device mounting frame 101 and a dredging chamber mounting frame 102. A drive device 2 is mounted on the drive device mounting frame 101. A dredging chamber is disposed from top to bottom on the dredging chamber mounting frame 102. The dredging chamber includes a first dredging chamber 3, a second dredging chamber 4, and a third dredging chamber 5. The first dredging chamber 3, the second dredging chamber 4, and the third dredging chamber 5 are arranged sequentially from top to bottom on the dredging chamber mounting frame 102. The first dredging chamber 3 is located above the dredging chamber mounting frame 102, the second dredging chamber 4 is located in the middle of the dredging chamber mounting frame 102, and the third dredging chamber 5 is located below the dredging chamber mounting frame 102. The first dredging chamber 3, the second dredging chamber 4, and the third dredging chamber 5 are rotatably connected to each other and are driven to rotate by the drive device 2. The first dredging chamber 3 and the second dredging chamber 4 rotate in opposite directions, and the second dredging chamber 4 and the third dredging chamber 5 rotate in opposite directions.

[0021] like Figure 1As shown, the drive device 2 includes a motor 201. A first sprocket 202 is provided at the output shaft end of the motor 201. A second sprocket 203 is provided to match the first sprocket 202. The second sprocket 203 is mounted on a first transmission shaft 204, which is vertically mounted on the drive device mounting bracket 101. The second sprocket 203 is located in the middle of the first transmission shaft 204. A first gear 205 is provided above the second sprocket 203. A second gear 208 meshes with the first gear 205. The second gear 208 is mounted on a second transmission shaft 209, which is vertically mounted on the drive device mounting bracket 101. On the frame 101, the second drive shaft 209 is equipped with a fifth sprocket 210 and a sixth sprocket 211. The chain wound around the fifth sprocket 210 and the sixth sprocket 211 is also wound around the second unclogging chamber 4 to drive the rotation of the second unclogging chamber 4. The upper part of the first drive shaft 204 is equipped with a third sprocket 206. The chain wound around the third sprocket 206 is also wound around the first unclogging chamber 3 to drive the rotation of the first unclogging chamber 3. The lower part of the first drive shaft 204 is equipped with a fourth sprocket 207. The chain wound around the fourth sprocket 207 is also wound around the third unclogging chamber 5 to drive the rotation of the third unclogging chamber 5.

[0022] When the output shaft of motor 201 rotates, the first sprocket 202 rotates, the first drive shaft 204 rotates, the third sprocket 206 and the fourth sprocket 207 rotate, and the first unblocking chamber 3 and the third unblocking chamber 5 rotate, with the first unblocking chamber 3 and the third unblocking chamber 5 rotating in the same direction. At the same time, the first gear 205 rotates, and the second gear 208 meshing with it rotates. The second gear 208 drives the second drive shaft 209 to rotate, and the rotation direction of the second drive shaft 209 is opposite to the rotation direction of the first drive shaft 204. The fifth sprocket 210 and the sixth sprocket 211 set on the second drive shaft 209 rotate, and the second unblocking chamber 4 rotates. The first unblocking chamber 3 and the second unblocking chamber 4 rotate in opposite directions, and the second unblocking chamber 4 and the third unblocking chamber 5 rotate in opposite directions. The two pairs of opposite rotations can effectively improve the coal unblocking efficiency.

[0023] like Figure 6 As shown, the inner cavities of the first unblocking chamber 3, the second unblocking chamber 4, and the third unblocking chamber 5 are conical cavities and are coaxially arranged. The outer walls are cylindrical and are coaxially arranged. The central axis of the conical cavity is eccentrically set with the central axis of the outer cylindrical wall.

[0024] like Figure 3 , Figure 6As shown, the outer wall of the first unblocking chamber 3 is a cylindrical structure, and the inner cavity is a conical cavity 301 that is narrow at the top and wide at the bottom. The central axis of the first conical cavity 301 is eccentrically set with the central axis of the outer cylindrical wall of the first unblocking chamber 3. A first chain tooth ring 303 is provided on the outer wall of the first unblocking chamber 3. The first chain tooth ring 303 is matched with the third sprocket 206. Several first protrusions 302 are also arranged on the inner wall of the first unblocking chamber 3. When the first unblocking chamber 3 rotates, the first protrusions 302 rotate to generate shearing force, thereby improving unblocking efficiency.

[0025] like Figure 4 , Figure 6 As shown, the outer wall of the second unblocking chamber 4 is a cylindrical structure, and the inner cavity is a conical cavity 401 that is narrow at the top and wide at the bottom. The central axis of the second conical cavity 401 is eccentrically set with respect to the central axis of the cylindrical outer wall of the second unblocking chamber 4. A second chain tooth ring 403 and a third chain tooth ring 404 are provided on the outer wall of the second unblocking chamber 4. The second chain tooth ring 403 is matched with the fifth sprocket 210, and the third chain tooth ring 404 is matched with the sixth sprocket 211. Several second protrusions 402 are also arranged on the inner wall of the second unblocking chamber 4. When the second unblocking chamber 4 rotates, the second protrusions 402 rotate to generate shearing force, thereby improving unblocking efficiency.

[0026] like Figure 5 , Figure 6 As shown, the outer wall of the third unblocking chamber 5 is a cylindrical structure, and the inner cavity is a conical cavity 501 that is narrow at the top and wide at the bottom. The central axis of the third conical cavity 501 is eccentrically set with the central axis of the cylindrical outer wall of the third unblocking chamber 5. A fourth chain tooth ring 503 is set on the outer wall of the third unblocking chamber 5. The fourth chain tooth ring 503 is matched with the fourth sprocket 207. Several third protrusions 502 are also arranged on the inner wall of the third unblocking chamber 5. When the third unblocking chamber 5 rotates, the third protrusions 502 rotate to generate shearing force, thereby improving unblocking efficiency.

[0027] like Figure 2As shown, a first bearing 8 is fitted onto the outer wall of the first unblocking chamber 3. The first bearing 8 is mounted on the unblocking chamber mounting frame 102. A dust cover 7 is installed above the first bearing 8, and a first support cover 9 is installed below it. The dust cover 7 and the first support cover 9 are mounted on the unblocking chamber mounting frame 102. A second unblocking chamber 4 is connected to the bottom of the first unblocking chamber 3. A second bearing 11 is fitted onto the upper end of the outer wall of the second unblocking chamber 4, and a third bearing 14 is fitted onto the lower end. The second bearing 11 and the third bearing 14 are mounted on the unblocking chamber mounting frame 102. A second support cover plate 10 is provided above the second bearing 11, and a third support cover plate 12 is provided below it. The second support cover plate 10 and the third support cover plate 12 are fixedly mounted on the unblocking chamber mounting frame 102. A fourth support cover plate 13 is provided above the third bearing 14, and a fifth support cover plate 15 is provided below it. The fourth support cover plate 13 and the fifth support cover plate 15 are fixedly mounted on the unblocking chamber mounting frame 102. A fourth bearing 16 is fitted onto the bottom of the outer wall of the third unblocking chamber 5. The fourth bearing 16 is mounted on the unblocking chamber mounting frame 102.

[0028] like Figures 3-4 As shown, the inner walls of the first unblocking chamber 3, the second unblocking chamber 4, and the third unblocking chamber 5 are provided with a first protrusion 302, a second protrusion 402, and a third protrusion 502. The protrusions are cylindrical, conical, pyramidal, or other forms of protrusions.

[0029] like Figures 7-9 As shown, a rolling auxiliary component is provided on the connecting end face of the first unblocking chamber 3, the second unblocking chamber 4, the second unblocking chamber 4, and the third unblocking chamber 5. The rolling auxiliary component includes a ball bearing annular groove provided on the connecting end face of the first unblocking chamber 3, the second unblocking chamber 4, and the third unblocking chamber 5, and a ball bearing disposed in the annular groove.

[0030] like Figure 7 , Figure 8 As shown, a first ball bearing groove 304 is provided on the bottom end face of the first unclogging chamber 3, and a second ball bearing groove 406 is provided on the top end face of the second unclogging chamber 4. The first ball bearing groove 304 and the second ball bearing groove 406 are matched and combined to form a circular groove, in which a ball bearing 19 is disposed. When the first unclogging chamber 3 and the second unclogging chamber 4 rotate, their mating end faces generate rolling friction. A downwardly inclined first protective wall 305 is provided on the inner side of the first ball bearing groove 304, and a first inclined wall 407 is provided on the inner side of the second ball bearing groove 406. The first inclined wall 407 and the first protective wall 305 have the same inclination angle. The first protective wall 305 blocks the gap between the mating end faces of the first unclogging chamber 3 and the second unclogging chamber 4, preventing impurities from entering the first ball bearing groove 304 and the second ball bearing groove 406.

[0031] like Figure 8As shown, a first brush group 17 is also provided on the bottom end face of the first unclogging chamber 3. The brush ends of the first brush group 17 face the top end face of the second unclogging chamber 4. During the rotation of the first unclogging chamber 3, the first brush group 17 removes the debris that falls on the top end face of the second unclogging chamber 4.

[0032] like Figure 7 , Figure 9 As shown, a third ball bearing groove 408 is provided on the bottom end face of the second unclogging chamber 4, and a fourth ball bearing groove 504 is provided on the top end face of the third unclogging chamber 5. The third ball bearing groove 408 and the fourth ball bearing groove 504 are matched and combined to form a circular groove, in which a ball bearing 19 is disposed. When the second unclogging chamber 4 and the third unclogging chamber 5 rotate, their mating end faces generate rolling friction. A downwardly inclined second protective wall 409 is provided on the inner side of the third ball bearing groove 408, and a second inclined wall 505 is provided on the inner side of the fourth ball bearing groove 504. The second inclined wall 505 has the same inclination angle as the first protective wall 305. The second protective wall 409 blocks the gap between the mating end faces of the second unclogging chamber 4 and the third unclogging chamber 5, preventing impurities from entering the third ball bearing groove 408 and the fourth ball bearing groove 504.

[0033] like Figure 9 As shown, a second brush group 18 is also provided on the bottom end face of the second unclogging chamber 4. The brush ends of the second brush group 18 face the top end face of the third unclogging chamber 5. During the rotation of the second unclogging chamber 4, the second brush group 18 removes the debris that falls on the top end face of the third unclogging chamber 5.

[0034] To prevent the passage of debris through the dredging chamber, several elastic pushers 6 are installed on the second dredging chamber 4, such as... Figure 4 As shown, a plurality of guide mounting holes 405 are evenly distributed on the cavity wall of the second unblocking chamber 4, and elastic pushers 6 are installed in the guide mounting holes 405. In this embodiment, four sets of elastic pushers 6 are provided, and the number of elastic pushers 6 can be increased or decreased according to the usage.

[0035] like Figures 10-12As shown, the elastic pusher 6 includes a pusher column 601, one end of which is a tapered tip facing the inner cavity of the second unclogging chamber 4. A pulley 602 is provided at the other end of the pusher column 601, and a ring track 605 is matched to the pulley 602. The ring track 605 is mounted on the unclogging chamber mounting frame 102, and its central axis is eccentrically positioned with respect to the central axis of the outer cylindrical wall of the second unclogging chamber 4. The pulley 602 slides on the ring track 605. A pulley groove 6051 is provided on the inner wall of the ring track 605, and the pulley 602 slides within it. A spring 603 is provided between the pulley 602 and the outer wall of the second unclogging chamber 4, and the spring 603 is sleeved on the pusher column 601. A guide limiting component 604 is also provided on the pulley 602, which limits the radial movement of the elastic pusher 6. The guide limiting assembly 604 includes a first mounting plate 6041, a first sliding limiting wheel 6042, a second mounting plate 6043, and a second sliding limiting wheel 6044. The first mounting plate 6041 and the second mounting plate 6043 are symmetrically arranged on the mounting base of the pulley 602. The cantilevered end of the first mounting plate 6041 is located above the annular track 605, and the cantilevered end of the second mounting plate 6043 is located below the annular track 605. The first sliding limiting wheel 6042 is provided at the cantilevered end of the first mounting plate 6041, and the second sliding limiting wheel 6044 is provided at the cantilevered end of the second mounting plate 6043. A first limiting annular groove 6052 is provided on the upper end surface of the annular track 605, and a second limiting annular groove 6053 is provided on the lower end surface. The first sliding limiting wheel 6042 rolls in the first limiting annular groove 6052, and the second sliding limiting wheel 6044 rolls in the second limiting annular groove 6053.

[0036] When the second unblocking chamber 4 rotates, the elastic pusher 6 rotates along with it, and the pulley 602 rotates on the annular track 605. Since the central axis of the annular track 605 is eccentrically set with the central axis of the outer cylindrical wall of the second unblocking chamber 4, the pusher 601 undergoes telescopic movement during rotation. The conical tip of the pusher 601 can break up and unblock the lumps of coal in the cavity of the second unblocking chamber 4.

[0037] In use, first connect the unblocking chamber to the raw coal storage channel opening for installation. To begin operation, motor 201 starts, its output shaft rotates, causing the first sprocket 202, first drive shaft 204, third sprocket 206, and fourth sprocket 207 to rotate. The first unblocking chamber 3 and the third unblocking chamber 5 rotate in the same direction. Simultaneously, the first gear 205 rotates, meshing with the second gear 208, which drives the second drive shaft 209 to rotate in the opposite direction to the first drive shaft 204. The fifth sprocket 210 and sixth sprocket 211 on the second drive shaft 209 rotate, causing the second unblocking chamber 4 to rotate. The first unblocking chamber 3 rotates in the opposite direction to the second unblocking chamber 4, and the second unblocking chamber 4 rotates in the opposite direction to the third unblocking chamber 5. When the second unblocking chamber 4 rotates, the elastic pusher 6 rotates along with it, and the pulley 602 rotates on the annular track 605. Since the central axis of the annular track 605 is eccentrically set with the central axis of the outer cylindrical wall of the second unblocking chamber 4, the pusher 601 undergoes telescopic movement during rotation. The conical tip of the pusher 601 can break up and unblock the lumps of coal in the cavity of the second unblocking chamber 4, thereby improving the feeding efficiency of the raw coal bunker.

Claims

1. A dredging device for a raw coal bunker, comprising a mounting frame (1), the mounting frame (1) including a drive device mounting frame (101) and a dredging chamber mounting frame (102), wherein a drive device (2) is mounted on the drive device mounting frame (101), and a dredging chamber is provided through the dredging chamber mounting frame (102) from top to bottom, the dredging chamber including a first dredging chamber (3), a second dredging chamber (4), and a third dredging chamber (5), characterized in that: The driving device (2) drives the first unblocking chamber (3), the second unblocking chamber (4), and the third unblocking chamber (5) to rotate, and the first unblocking chamber (3) and the second unblocking chamber (4) rotate in opposite directions, and the second unblocking chamber (4) and the third unblocking chamber (5) rotate in opposite directions; The inner cavity of the first unblocking chamber (3), the second unblocking chamber (4), and the third unblocking chamber (5) is a conical cavity, which is coaxially arranged. The outer wall is a cylinder, which is coaxially arranged. The central axis of the conical cavity is eccentrically arranged with the central axis of the outer cylinder. Rolling auxiliary components are provided on the connecting end faces of the first unblocking chamber (3), the second unblocking chamber (4), and the third unblocking chamber (5). The rolling auxiliary components include a ball ring groove provided on the connecting end faces of the first unblocking chamber (3), the second unblocking chamber (4), and the third unblocking chamber (5) and a ball set in the ring groove. The cavity wall of the second unblocking chamber (4) is evenly provided with a number of elastic pushers (6). The elastic pushers (6) include pushers (601). One end of the pusher (601) is set as a conical tip, which faces the inner cavity of the second unblocking chamber (4). The other end of the pusher (601) is provided with a pulley (602). A ring track (605) is provided to match the pulley (602). The ring track (605) is set on the unblocking chamber mounting frame (102). The central axis of the ring track (605) is eccentrically set with the central axis of the outer cylindrical wall of the second unblocking chamber (4). A spring (603) is provided between the pulley (602) and the outer wall of the second unblocking chamber (4). The spring (603) is sleeved on the pusher (601).

2. The unblocking device for raw coal bunkers according to claim 1, characterized in that: A first bearing (8) is fitted on the outer wall of the first unblocking chamber (3). The first bearing (8) is mounted on the unblocking chamber mounting frame (102). A dust cover (7) is installed above the first bearing (8) and a first support cover (9) is installed below it. A second unblocking chamber (4) is connected to the bottom of the first unblocking chamber (3). A second bearing (11) is fitted on the upper end of the outer wall of the second unblocking chamber (4) and a third bearing (14) is fitted on the lower end. The second bearing (11) and the third bearing (14) are mounted on the unblocking chamber mounting frame (102). A second support cover (10) is installed above the second bearing (11) and a third support cover (12) is installed below it. A fourth support cover (13) is installed above the third bearing (14) and a fifth support cover (15) is installed below it. A third unblocking chamber (5) is connected to the bottom of the second unblocking chamber (4). A fourth bearing (16) is fitted on the bottom of the outer wall of the third unblocking chamber (5) and the fourth bearing (16) is mounted on the unblocking chamber mounting frame (102).

3. The unblocking device for raw coal bunkers according to claim 1, characterized in that: The inner wall of the first unblocking chamber (3) is provided with a number of first protrusions (302), the inner wall of the second unblocking chamber (4) is provided with a number of second protrusions (402), and the inner wall of the third unblocking chamber (5) is provided with a number of third protrusions (502).

4. The unblocking device for raw coal bunkers according to claim 1, characterized in that: The bottom end face of the first unblocking chamber (3) is provided with a first ball ring groove (304), and the top end face of the second unblocking chamber (4) is provided with a second ball ring groove (406). The first ball ring groove (304) and the second ball ring groove (406) are matched and set together. The first ball ring groove (304) and the second ball ring groove (406) are combined to form a circular ring groove, and a ball (19) is set in the circular ring groove.

5. A dredging device for raw coal bunkers according to claim 4, characterized in that: The bottom end face of the second unblocking chamber (4) is provided with a third ball ring groove (408), and the top end face of the third unblocking chamber (5) is provided with a fourth ball ring groove (504). The third ball ring groove (408) and the fourth ball ring groove (504) are matched and arranged. The third ball ring groove (408) and the fourth ball ring groove (504) are combined to form a circular ring groove, and a ball (19) is provided in the circular ring groove.

6. A dredging device for raw coal bunkers according to claim 5, characterized in that: The inner side of the first ball ring groove (304) is provided with a downwardly inclined first protective wall (305), the inner side of the second ball ring groove (406) is provided with a first inclined wall (407), the first inclined wall (407) and the first protective wall (305) have the same inclination angle, the inner side of the third ball ring groove (408) is provided with a downwardly inclined second protective wall (409), and the inner side of the fourth ball ring groove (504) is provided with a second inclined wall (505), the second inclined wall (505) and the first protective wall (305) have the same inclination angle.

7. A dredging device for raw coal bunkers according to claim 1, characterized in that: The inner wall of the annular track (605) is provided with a pulley groove (6051), and the pulley (602) slides in the pulley groove (6051).

8. A dredging device for raw coal bunkers according to claim 1, characterized in that: The pulley (602) is also provided with a guide limiting assembly (604), which includes a first mounting plate (6041), a first sliding limiting wheel (6042), a second mounting plate (6043), and a second sliding limiting wheel (6044). The first mounting plate (6041) and the second mounting plate (6043) are symmetrically arranged on the pulley (602). The cantilevered end of the first mounting plate (6041) is located above the annular track (605), and the cantilevered end of the second mounting plate (6043) is located above the annular track (605). Below the annular track (605), a first sliding limit wheel (6042) is provided at the overhanging end of the first mounting plate (6041), and a second sliding limit wheel (6044) is provided at the overhanging end of the second mounting plate (6043). A first limiting ring groove (6052) is provided on the upper end surface of the annular track (605), and a second limiting ring groove (6053) is provided on the lower end surface. The first sliding limit wheel (6042) rolls in the first limiting ring groove (6052), and the second sliding limit wheel (6044) rolls in the second limiting ring groove (6053).

9. A dredging device for raw coal bunkers according to claim 1, characterized in that: A first brush group (17) is also provided on the bottom end face of the first unblocking chamber (3), with the brush end of the first brush group (17) facing the top end face of the second unblocking chamber (4). A second brush group (18) is also provided on the bottom end face of the second unblocking chamber (4), with the brush end of the second brush group (18) facing the top end face of the third unblocking chamber (5).

10. A dredging device for raw coal bunkers according to claim 1, characterized in that: The drive device (2) includes a motor (201), a first sprocket (202) is provided at the output shaft end of the motor (201), a second sprocket (203) is provided matching the first sprocket (202), the second sprocket (203) is provided on a first transmission shaft (204), the first transmission shaft (204) is vertically provided on the drive device mounting bracket (101), the second sprocket (203) is located at the middle position of the first transmission shaft (204), a first gear (205) is provided above the second sprocket (203), a second gear (208) is provided meshing with the first gear (205), and the second gear (208) is provided on the second transmission shaft (201). On 09), the second drive shaft (209) is vertically mounted on the drive device mounting bracket (101). The second drive shaft (209) is equipped with a fifth sprocket (210) and a sixth sprocket (211). The chain wound on the fifth sprocket (210) and the sixth sprocket (211) is also wound on the second unblocking chamber (4). The upper part of the first drive shaft (204) is equipped with a third sprocket (206). The chain wound on the third sprocket (206) is also wound on the first unblocking chamber (3). The lower part of the first drive shaft (204) is equipped with a fourth sprocket (207). The chain wound on the fourth sprocket (207) is also wound on the third unblocking chamber (5).

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