Belt cleaning and coal sweeping device

Abstract

The invention belongs to the technical field of belt conveyors, and particularly relates to a belt cleaning and coal sweeping device which comprises supporting arms arranged on the two sides of the bottom of the tail of a belt conveyor. A rotating arm is rotationally mounted at the top of the supporting arm; a scraping plate is arranged between the ends, close to the tail of the belt conveyor, of the rotating arms; the scraping plate is in sliding contact with the outer wall of a belt of the belt conveyor; a lifting rod is arranged at the other end of the rotating arm; the outer ring of the lifting rod is sleeved with a plurality of counterweight plates; due to the weight of the balancing weight, the rotating arm drives the scraping plate to always keep upward movement driving; according to the belt conveyor, the scraper blade is arranged on the belt conveyor, so that no matter whether the belt of the belt conveyor is tightened or loosened, the scraper blade can always extrude the belt of the belt conveyor, the scraper blade can scrape uneven positions of the belt, the scraper blade can effectively scrape coal slime on the belt, the cleaning degree of the belt is improved, and the running safety of the belt conveyor is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of belt conveyors, in particular to a belt cleaning and coal sweeping device. Background Art

[0002] Coal mine belt conveyors are the core transportation equipment for coal mining. They feature continuous transportation, large transport capacity, and strong adaptability. They are widely used in underground tunnels, open-pit coal mines, and ground transfer systems to transport mined coal.

[0003] During the mining process of the belt working face of the coal mine belt conveyor, water dripping and accumulated on the top surface of the tunnel will enter the coal flow system along with the transported goods, causing many problems: it will reduce the friction between the belt and the goods, making it impossible to transport the goods normally; coal slime will adhere to the belt of the coal mine belt conveyor, making it impossible to unload the goods smoothly; the belt drives the coal slime through the bottom belt roller, causing the belt storage bin environment of the belt conveyor to be harsh, and a large amount of coal slime will be generated, which requires frequent cleaning by staff and requires a lot of maintenance; after the coal slime enters the roller, it will cause the roller bearing to damage faster, the belt to deviate, and increase the frequency of maintenance; if the coal slime sticks to the roller surface, the diameter of the roller will change, causing the belt to deviate.

[0004] Although existing coal mine belt conveyors are equipped with coal sweepers, the cleaning position of the coal sweepers is fixed, and the surface of the belts of the coal mine belt conveyors will become uneven after long-term use, making it difficult to clean the coal slime adhering to the belts. Over time, a large amount of coal slime will still adhere to the belts. As the belts run, the coal slime enters the belt system and sticks to the rollers and drums, causing great harm.

[0005] To this end, the present invention provides a belt cleaning and coal sweeping device. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problems is: a belt cleaning and coal sweeping device described in the present invention is characterized in that: it includes support arms arranged on both sides of the bottom of the tail of the belt conveyor; a rotating arm is rotatably installed on the top of the support arm; a scraper is arranged between the ends of the rotating arm close to the tail of the belt conveyor; the scraper is in sliding contact with the outer wall of the belt of the belt conveyor; a suspension rod is provided at the other end of the suspension arm; and a plurality of counterweight discs are provided on the outer ring of the suspension rod.

[0008] Preferably, a slot is provided at one end of the rotating arm away from the tail of the belt conveyor; a swivel seat is rotatably installed inside the slot; and the suspension rod is fixedly connected to the swivel seat with threads.

[0009] Preferably, a rotating rod is rotatably mounted on one end of the rotating arm close to the tail of the belt conveyor; a mounting plate is fixedly connected to one end of the rotating rod close to the belt conveyor; and both ends of the scraper are fixedly mounted to the mounting plates on both sides respectively.

[0010] Preferably, the rotating arm is close to the tail end of the belt conveyor, and is fixedly connected to a pair of support beams on the side close to the belt conveyor; the two support beams are respectively located on both sides of the rotating rod; the outer ring of the rotating rod is fixedly connected to a sleeve plate; springs are fixedly connected between the top sides of the sleeve plate and the support beams.

[0011] Preferably, an axle is rotatably installed between the two rotating arms away from the tail end of the belt conveyor; the axle is located between the support arm and the counterweight plate; a pressure roller is fixed to the middle outer ring of the axle; the belt of the belt conveyor passes around the top of the scraper and the bottom of the pressure roller in turn.

[0012] Preferably, outer rings at both ends of the pressure roller are provided with retaining rings.

[0013] Preferably, the rotating arm is away from the tail end of the belt conveyor and is fixedly connected to a transmission housing on the side close to the belt conveyor; the end of the shaft rod passes through the top of the transmission housing; a belt transmission mechanism is provided inside the transmission housing; a cleaning roller is provided between the bottoms of the two transmission housings; both ends of the shaft rod are connected to the two ends of the cleaning roller through the belt transmission structure.

[0014] Preferably, a plurality of grooves are formed around the outer ring of the cleaning roller; a pressure strip is bolted inside the groove; and a cleaning strip is clamped between the pressure strip and the groove 20 .

[0015] Preferably, the scraper is a symmetrical bent structure, and the middle portion of the scraper protrudes toward the tail end of the belt conveyor.

[0016] The beneficial effects of the present invention are as follows: 1. The belt cleaning and coal sweeping device described in the present invention is provided with a support arm, a rotating arm, a scraper, a suspension rod and a counterweight plate; due to the weight of the counterweight block, the rotating arm drives the scraper to always maintain the drive of phase movement; so that no matter whether the belt of the belt conveyor is tight or loose, the scraper can always squeeze the belt of the belt conveyor, so that the scraper can scrape the potholes and uneven places of the belt, so that the scraper can effectively scrape the coal slime on the belt, thereby improving the cleanliness of the belt and improving the safety of the belt conveyor operation.

[0017] 2. The belt cleaning and coal sweeping device described in the present invention is provided with a shaft and a pressure roller; when the rotating arm drives the scraper to squeeze the outer wall of the bottom belt of the belt conveyor upward, the other end of the rotating arm rotates downward, driving the shaft and the pressure roller to press the bottom belt of the belt conveyor downward, so that the belt is pressed down by the pressure roller after passing through the scraper, thereby improving the contact tightness between the scraper and the belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 This is a schematic structural diagram of a coal sweeping device in the present invention disposed within a belt conveyor; Figure 2 This is a structural diagram of the belt passing through the coal sweeping device in the present invention; Figure 3 It is a structural schematic diagram of the coal sweeping device in the present invention; Figure 4 It is a structural schematic diagram of the rotating arm of the present invention; Figure 5 It is a schematic structural diagram of the pressure roller and the cleaning roller in the present invention; Figure 6 This is a schematic diagram of the end structure of the pressure roller and the cleaning roller in the present invention; Figure 7 It is a schematic diagram of the end structure of the cleaning roller in the present invention; Figure 8 It is a schematic structural diagram of the cleaning roller, pressure strip and cleaning strip in the present invention; In the figure: 1. Belt conveyor; 2. Support arm; 3. Rotating arm; 4. Scraper; 5. Hanging rod; 6. Counterweight plate; 7. Notch; 8. Rotating seat; 9. Rotating rod; 10. Mounting plate; 11. Support beam; 12. Sleeve plate; 13. Spring; 14. Shaft; 15. Pressure roller; 16. Retaining ring; 17. Transmission housing; 18. Belt transmission mechanism; 19. Cleaning roller; 20. Strip groove; 21. Pressure strip; 22. Cleaning strip. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] like Figures 1 to 4 As shown, a belt cleaning and coal sweeping device according to an embodiment of the present invention comprises support arms 2 provided on both sides of the bottom of the tail of a belt conveyor 1; a rotating arm 3 is rotatably mounted on the top of the support arm 2; a scraper 4 is provided between one end of the rotating arm 3 close to the tail of the belt conveyor 1; the scraper 4 is in sliding contact with the outer wall of the belt of the belt conveyor 1; a suspension rod 5 is provided at the other end of the rotating arm 3; and a plurality of counterweight discs 6 are provided on the outer ring of the suspension rod 5; Specifically, the belt conveyor 1 transports the coal mined in the coal mine to the outside of the mine, and then the belt of the belt conveyor 1 passes around the driving roller of the belt conveyor 1 and returns to the mine from the bottom of the belt conveyor 1; A connecting hole is provided at the top of the support arm 2 and the corresponding position in the middle of the rotating arm 3, and a connecting shaft is rotatably installed inside the connecting hole, so that the rotating arm 3 can rotate around the connecting shaft; A scraper 4 is fixedly mounted on the end of the rotating arm 3 close to the tail of the belt conveyor 1 by bolts; a suspension rod 5 is provided on the end of the rotating arm 3 away from the tail of the belt conveyor 1, and a circular plate for preventing the counterweight plate 6 from falling is fixed to the bottom end of the suspension rod 5; When the belt of the belt conveyor 1 passes around the driving roller and returns to the mine, the weight of the counterweight 6 drives the boom 5 to move downward, driving the rotating arm 3 to rotate around the supporting arm 2, that is, the end of the rotating arm 3 close to the counterweight 6 moves downward, and the other end moves upward, and the rotating arms 3 on both sides drive the scrapers 4 to move upward, and the scrapers 6 squeeze the outer wall of the bottom belt of the belt conveyor 1, that is, the scrapers 4 squeeze the working surface of the belt of the belt conveyor 1; due to the weight of the counterweight, the rotating arm 3 drives the scrapers 4 to always maintain the drive to move upward; no matter whether the belt of the belt conveyor 1 is tight or loose, the scrapers 4 can always squeeze the belt of the belt conveyor 1, so that the scrapers 4 can scrape the potholes and uneven places of the belt, so that the scrapers 4 can effectively scrape the coal slime on the belt, thereby improving the cleanliness of the belt and improving the safety of the operation of the belt conveyor 1.

[0022] Further, such as Figure 4 As shown, a slot 7 is formed at one end of the rotating arm 3 away from the tail end of the belt conveyor 1; a rotating seat 8 is rotatably mounted inside the slot 7; and the suspension rod 5 is fixedly connected to the rotating seat 8 with threads; Specifically, a connection hole is opened at a position corresponding to the slot 7 and the swivel seat 8, and a connection shaft is rotatably installed inside the connection hole, so that the swivel seat 8 can rotate inside the slot 7; The bottom of the swivel seat 8 is provided with a screw hole, and the outer ring of the top end of the suspension rod 5 is provided with a thread matching the screw hole, so that the suspension rod 5 is fixedly installed to the bottom of the swivel seat 8 by thread; By setting the suspension rod 5 and the swivel seat 8 to be fixed with threads, it is easy to disassemble and assemble the suspension rod 5, thereby facilitating the increase or decrease of the conveying of the counterweight plate 6, and further adjusting the squeezing force of the scraper 4 on the belt of the belt conveyor 1; By allowing the swivel seat 8 to rotate freely in the slot 7, the boom 5 always remains in a vertical state under the gravity of the counterweight plate 6. That is, when the swing arm 3 rotates, the boom 5 and the counterweight plate 6 always remain in a vertical state, thereby improving the stability of the swing arm 3 during rotation.

[0023] In some embodiments, such as Figures 1 to 4As shown, a rotating rod 9 is rotatably mounted on one end of the rotating arm 3 close to the tail of the belt conveyor 1; a mounting plate 10 is fixedly connected to one end of the rotating rod 9 close to the belt conveyor 1; and both ends of the scraper 4 are fixedly mounted to the mounting plates 10 on both sides respectively; Specifically, a through hole is formed at one end of the rotating arm 3 near the tail of the belt conveyor 1, and a rotating rod 9 is rotatably mounted inside the through hole; the scraper 4 is composed of two scrapers and two connecting blocks; the two scrapers are arranged in parallel, and the two ends of the two scrapers are respectively welded to the two connecting blocks; the connecting blocks at both ends of the scraper 4 are formed with stepped holes at positions corresponding to the mounting plate 10, and bolts are provided inside the stepped holes; When the rotating arm 3 drives the scraper 4 to press upward the outer wall of the bottom belt of the belt conveyor 1, the scraper 4 rotates with the belt, so that the scraper 4 can fit well with the belt, thereby improving the cleaning degree of the belt of the belt conveyor 1; By configuring the scraper 4 as a double scraper structure, the cleaning degree of the belt of the belt conveyor 1 is further improved.

[0024] Further, such as Figures 1 to 4 As shown, the rotating arm 3 is close to the tail end of the belt conveyor 1, and a pair of support beams 11 are fixedly connected to the side close to the belt conveyor 1; the two support beams 11 are respectively located on both sides of the rotating rod 9; the outer ring of the rotating rod 9 is fixedly connected to a sleeve 12; springs 13 are fixedly connected between the top sides of the sleeve 12 and the support beams 11; Specifically, the top surface of the support beam 11 is provided with an inclined surface on one side close to the rotating rod 9; the sleeve 12 includes a sleeve fixedly mounted on the outer ring of the rotating rod 9, and a convex plate is fixedly connected to the top of the sleeve; the two ends of the spring 13 are respectively fixed to the inclined surface of the support beam 11 and the side surface of the convex plate of the sleeve 12; When the scraper 4 is not in contact with the belt of the belt conveyor 1, the springs 13 on both sides push the sleeve rod 12 to maintain a vertical state, and the scraper 4 is driven to maintain a horizontal state through the transmission of the rotating rod 9; When the scraper 4 contacts the belt of the belt conveyor 1, the belt of the belt conveyor 1 drives the scraper 4 to rotate, and drives the rotating rod 9 and the sleeve plate 12 to rotate, so that the spring 13 on one side is compressed and the spring 13 on the other side is stretched; since the elastic force of the spring 13 drives the scraper 4 to a horizontal state, the scraper 4 will fit closely with the belt of the belt conveyor 1, thereby improving the effect of scraping the coal slime on the belt of the belt conveyor 1.

[0025] In some embodiments, such as Figures 2 to 5As shown, a shaft 14 is rotatably mounted between the two rotating arms 3 at one end away from the tail of the belt conveyor 1; the shaft 14 is located between the support arm 2 and the counterweight plate 6; a pressure roller 15 is fixedly connected to the outer ring of the middle portion of the shaft 14; the belt of the belt conveyor 1 passes over the top of the scraper 4 and the bottom of the pressure roller 15 in sequence; Specifically, the rotating arm 3 is located between the supporting arm 2 and the counterweight plate 6 and has a circular hole; both ends of the shaft 14 are rotatably mounted inside the circular hole; When the rotating arm 3 drives the scraper 4 to squeeze the outer wall of the bottom belt of the belt conveyor 1 upward, the other end of the rotating arm 3 rotates downward, driving the shaft 14 and the pressure roller 15 to press the bottom belt of the belt conveyor 1 downward, so that the belt is pressed down by the pressure roller 15 after passing through the scraper 4, thereby improving the contact tightness between the scraper 4 and the belt.

[0026] Further, such as Figures 5 and 6 As shown, the outer rings at both ends of the pressure roller 15 are provided with retaining rings 16; Specifically, the outer ring of the retaining ring 16 is provided with a plurality of screw holes, and screws are installed in the internal threads of the screw holes; the screws squeeze the outer wall of the pressure roller 15 so that the retaining ring 16 is fixed and locked to the outer wall of the pressure roller 15; Push the retaining ring 16 to move along the pressure roller 15, control the distance between the two retaining rings 16, and tighten them with screws; the retaining ring 16 is set to block and limit the belt of the belt conveyor 1, thereby avoiding the belt from running off during the cleaning process.

[0027] In some embodiments, such as Figure 2 、 Figure 3 、 Figures 5 to 8 As shown, the rotating arm 3 is located away from the tail end of the belt conveyor 1 and is fixedly connected to a transmission housing 17 on the side close to the belt conveyor 1; the end of the shaft 14 passes through the top of the transmission housing 17; a belt transmission mechanism 18 is provided inside the transmission housing 17; a cleaning roller 19 is provided between the bottoms of the two transmission housings 17; both ends of the shaft 14 are connected to the two ends of the cleaning roller 19 through the belt transmission structure 18; Specifically, the side of the transmission housing 17 is fixedly connected to the rotating arm 3 through a bracket; through holes are opened at the top and bottom of the transmission housing 17, and pulleys are rotatably installed at the top and bottom of the inner cavity of the transmission housing 17, and the outer rings of the two pulleys are provided with belts; the shaft 14 passes through the top pulley and is fixed to the top pulley; the inner ring of the bottom pulley is fixedly connected to a connecting shaft, and the connecting shaft is fixed to the end of the cleaning roller 19 by multiple bolts; the belt of the belt conveyor 1 passes through the bottom of the pressure roller 15 and the top of the cleaning roller 19; When the pressure roller 15 presses down the belt of the belt conveyor 1, the belt of the belt conveyor 1 drives the pressure roller 15 to rotate during movement, drives the shaft 14 to rotate, and the shaft 14 drives the cleaning roller 19 to rotate through the pulley, belt and connecting shaft of the belt transmission mechanism 18. The cleaning roller 19 rotates to clean the belt surface of the belt conveyor 1, thereby further improving the coal slime cleaning effect on the potholes and depressions of the belt.

[0028] Further, such as Figures 5 to 8 As shown, the outer ring of the cleaning roller 19 is surrounded by a plurality of grooves 20; a pressure strip 21 is bolted inside the groove 20; a cleaning strip 22 is sandwiched between the pressure strip 21 and the groove 20; Specifically, a plurality of threaded holes are provided at positions corresponding to the strips 21 and the strip grooves 20, and screws are installed in the internal threads of the threaded holes; During installation, the cleaning strip 22 is placed inside the strip groove 20, and the pressure strip 21 is fixed to the inside of the strip groove 20 by screws, so that the cleaning strip 22 is fixed and pressed tightly inside the strip groove 20. Due to the downward pressure of the pressure strip 21, the two sides of the cleaning strip 22 are tilted outward, so that the two sides of the cleaning strip 22 can contact the belt of the belt conveyor 1; when the cleaning roller 19 rotates, it drives multiple cleaning strips 22 to rotate and contact the belt surface of the belt conveyor 1, thereby realizing the cleaning of the coal slime in the potholes and depressions of the belt; at the same time, it is convenient for the staff to replace the waste cleaning strips 22.

[0029] Further, such as Figures 2 to 3 As shown, the scraper 4 is a symmetrical bent structure, and the middle portion of the scraper 4 protrudes toward the tail end of the belt conveyor 1; Specifically, the scraper of the scraper 4 is a symmetrical bent structure, and the middle part of the scraper protrudes toward the tail end of the belt conveyor 1; when the scraper 4 is attached to the belt of the belt conveyor 1 to clean the coal slime, the coal slime will slide along the scraper 4 toward both sides of the belt conveyor 1, making it easier for the staff to clean the accumulated coal slime.

[0030] Working Principle: Belt conveyor 1 transports coal mined from the mine to the outside of the mine. Afterwards, the belt of belt conveyor 1 passes over the drive roller of belt conveyor 1 and returns to the mine from the bottom of belt conveyor 1. At this time, the weight of the counterweight 6 drives the boom 5 to move downward, and drives the rotating arm 3 to rotate around the supporting arm 2, that is, the end of the rotating arm 3 close to the counterweight 6 moves downward, and the other end moves upward. The rotating arms 3 on both sides drive the scrapers 4 to move upward, and the scrapers 6 squeeze the outer wall of the bottom belt of the belt conveyor 1. The belt of the belt conveyor 1 drives the scrapers 4 to rotate, and drives the rotating rod 9 and the sleeve 12 to rotate, so that the spring 13 on one side is compressed and the spring 13 on the other side is stretched; due to the elastic force of the spring 13, the scrapers 4 tend to the horizontal state, so that the scrapers 4 will fit closely with the belt of the belt conveyor 1; Due to the weight of the counterweight, the rotating arm 3 drives the scraper 4 to always keep moving upward; no matter whether the belt of the belt conveyor 1 is tight or loose, the scraper 4 can always squeeze the belt of the belt conveyor 1, so that the scraper 4 can scrape the potholes and uneven places of the belt; At the same time, the other end of the rotating arm 3 rotates downward, driving the shaft 14 and the pressure roller 15 to press down the bottom belt of the belt conveyor 1, so that the belt is pressed down by the pressure roller 15 after passing the scraper 4; during the movement of the belt of the belt conveyor 1, the pressure roller 15 is driven to rotate, and the shaft 14 is driven to rotate. The shaft 14 is driven by the pulley, belt and connecting shaft of the belt transmission mechanism 18 to drive the cleaning roller 19 to rotate, and the cleaning roller 19 rotates to clean the belt surface of the belt conveyor 1; thereby, the scraper 4 can effectively scrape off the coal slime on the belt, improve the cleanliness of the belt, and improve the safety of the operation of the belt conveyor 1.

[0031] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A belt cleaning and coal sweeping device, characterized in that: It includes support arms arranged on both sides of the bottom of the tail of the belt conveyor; a rotating arm is rotatably installed on the top of the support arm; a scraper is arranged between the ends of the rotating arm close to the tail of the belt conveyor; the scraper is in sliding contact with the outer wall of the belt of the belt conveyor; a suspension rod is arranged at the other end of the rotating arm; and a plurality of counterweight discs are arranged on the outer ring of the suspension rod.

2. A belt cleaning and coal sweeping device according to claim 1, characterized in that: A notch is provided at one end of the rotating arm away from the tail of the belt conveyor; a swivel seat is rotatably installed inside the notch; and the suspension rod is fixedly connected to the swivel seat with threads.

3. The belt cleaning and coal sweeping device according to claim 1, characterized in that: A rotating rod is rotatably mounted on one end of the rotating arm close to the tail of the belt conveyor; a mounting plate is fixedly connected to one end of the rotating rod close to the belt conveyor; and both ends of the scraper are fixedly mounted on the mounting plates on both sides respectively.

4. A belt cleaning and coal sweeping device according to claim 3, characterized in that: The rotating arm is close to the tail end of the belt conveyor, and is fixedly connected to a pair of support beams on the side close to the belt conveyor; the two support beams are respectively located on both sides of the rotating rod; the outer ring of the rotating rod is fixedly connected to a sleeve plate; springs are fixedly connected between the top sides of the sleeve plate and the support beams.

5. The belt cleaning and coal sweeping device according to claim 1, characterized in that: An axle is rotatably installed between the two rotating arms away from the tail end of the belt conveyor; the axle is located between the support arm and the counterweight plate; a pressure roller is fixed to the middle outer ring of the axle; the belt of the belt conveyor passes around the top of the scraper and the bottom of the pressure roller in sequence.

6. The belt cleaning and coal sweeping device according to claim 5, characterized in that: The outer rings at both ends of the pressure roller are provided with retaining rings.

7. The belt cleaning and coal sweeping device according to claim 5, characterized in that: The rotating arm is away from the tail end of the belt conveyor and is fixedly connected to a transmission housing on the side close to the belt conveyor; the end of the shaft rod passes through the top of the transmission housing; a belt transmission mechanism is provided inside the transmission housing; a cleaning roller is provided between the bottoms of the two transmission housings; both ends of the shaft rod are connected to the two ends of the cleaning roller through the belt transmission structure.

8. The belt cleaning and coal sweeping device according to claim 7, characterized in that: The outer ring of the cleaning roller is surrounded by a plurality of grooves; a pressure strip is bolted inside the groove; and a cleaning strip is sandwiched between the pressure strip and the groove 20.

9. The belt cleaning and coal sweeping device according to claim 1, characterized in that: The scraper is a symmetrical bent structure, and the middle part of the scraper protrudes toward the tail end of the belt conveyor.

Images