A belt conveyor with a return belt cleaning structure

Abstract

The present invention belongs to the field of conveying technology, and in particular to a belt conveyor with a return belt cleaning structure. The following scheme is proposed, including a bracket and two support plates, the bottoms of the two support plates are welded to the two sides of the top of the bracket, a conveying mechanism is arranged between the two support plates, the conveying mechanism is composed of two rotating rods, two rollers, a conveyor belt and a motor, and the two ends of the two rotating rods are connected to the opposite sides of the bracket by bearings to form a rotation connection, the two rollers are fixedly sleeved on the outer walls of the two rotating rods, the conveyor belt and the two rollers are connected to a rotation connection, and one side of one of the support plates is connected to the motor by bolts. The present invention can improve the cleaning range of the return conveyor belt, and at the same time, the movement of the conveyor belt and the movement of the cleaning plate are vertically distributed, so the impurities at the bottom of the conveyor belt can be effectively scraped off by the cleaning plate, thereby improving the cleaning efficiency of the cleaning mechanism on the conveyor belt.

Description

Technical Field

[0001] The invention relates to the field of conveying, and in particular to a belt conveyor with a return belt cleaning structure. Background Art

[0002] Mining belt conveyors refer to belt conveyors used in the mining, production, transportation and processing of minerals such as coal. Mining belt conveyors have the characteristics of large transportation volume, complex working environment, strong carrying capacity and long transportation distance. They are widely used in major mining areas in my country.

[0003] After searching, the Chinese patent application with application publication number CN119018591A discloses an automatic cleaning device for the return belt of a mining belt conveyor, including: a base, installed at the discharging end of the belt conveyor; a cleaning mechanism, installed on the base, including a primary cleaning component and a secondary cleaning component, the cleaning mechanism has a gentle mode and a strong mode, when the cleaning mechanism is in the gentle mode, the primary cleaning component is started, when the cleaning mechanism is in the strong mode, the primary cleaning component and the secondary cleaning component are started at the same time; a detection trigger component, installed on the base, used to detect dirt on the belt and control the start and stop of the secondary cleaning component. This application has the effect of adjusting the cleaning method according to the degree of attachment of dirt on the belt.

[0004] During the operation of the mining belt conveyor, it is inevitable that some dirt such as coal dust, soil and ore particles will adhere to the belt. If it is not cleaned in time, once the dirt accumulates, it will accelerate the wear of the belt or even scratch the belt. In addition to wearing the belt, it may also cause the belt to deviate and the conveying to be unstable. Although the existing belt conveyor is equipped with a cleaning mechanism, the existing cleaning mechanism only cleans the belt through a cleaning roller according to the rotation of the belt, which will result in a poor cleaning effect of the cleaning mechanism on the belt, thereby affecting the cleaning of the belt. Summary of the invention

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: The conveyor belt is provided with a return belt cleaning structure, comprising a bracket and two support plates, the bottoms of the two support plates are welded to the two sides of the top of the bracket, a conveying mechanism is arranged between the two support plates, the conveying mechanism is composed of two rotating rods, two rotating rollers, a conveyor belt and a motor, and the two ends of the two rotating rods are rotatably connected to the opposite sides of the bracket through bearings, the two rotating rollers are fixedly sleeved on the outer walls of the two rotating rods, and a conveyor belt is rotatably connected to the two rollers, one side of one of the support plates is connected to the motor by bolts, one end of the motor is fixedly connected to one of the rotating rods, and protective belts are arranged on both sides of the outer wall of the conveyor belt, a cleaning mechanism is arranged between the opposite sides of the bracket, and the top of the cleaning mechanism is in contact with the bottom of the conveying mechanism, and the cleaning mechanism is matched with the conveying mechanism.

[0006] Preferably, the two opposite sides of the two support plates are connected with support seats by bolts, and the support seats are slidably connected to the conveyor belt, and the support seats are located in the gap of the conveyor belt.

[0007] Preferably, the cleaning mechanism is composed of two first transmission assemblies and two cleaning assemblies, and the cleaning assemblies are connected to the conveying mechanism through the first transmission assemblies, and the two cleaning assemblies are symmetrically staggered.

[0008] Preferably, the first transmission assembly consists of two support shafts, two first pulleys and a first belt, and one of the support shafts is welded to one end of one of the rotating rods, and the other support shaft is rotatably connected to one side of the bracket through a bearing, and the two first pulleys are fixedly sleeved on the outer walls of the two support shafts, and a rotatably connection is formed between the first belt and the two first pulleys.

[0009] Preferably, the cleaning assembly includes a support plate, a first connecting tube, a second connecting tube and a cleaning plate, and a limiting rod is connected between one side of the support plate and the bracket by bolts, the limiting rod is made of telescopic material, and the outer wall of the limiting rod is sleeved with a first spring, one side of the first connecting tube is welded to another support shaft, one end of the second connecting tube is connected to the support plate by bolts, and multiple concave and convex parts are arranged on the opposite sides of the first connecting tube and the second connecting tube, an axis plate is connected between one side of the bottom of the cleaning plate and the top of the support plate by bolts, and multiple brush heads are arranged on the top of the cleaning plate, and the brush heads are in contact with the bottom of the conveyor belt.

[0010] Preferably, a sliding opening is opened on one side of the two support plates near the top, and the inner walls of the two sliding openings are slidably connected with a slide plate, a second spring is connected between one side of the slide plate and the sliding opening by bolts, and a scraping mechanism is arranged between the two slide plates, and the scraping mechanism is matched with the conveying mechanism.

[0011] Preferably, the scraping mechanism is in contact with the second transmission assembly and the scraping assembly, and the scraping assembly is connected to the conveying mechanism through the second transmission assembly.

[0012] Preferably, the second transmission assembly consists of two second pulleys, a second belt, two shafts, a rotating shaft, a half gear and a rack, and one end of the shaft is welded to one of the rotating rods, one end of the rotating shaft is rotatably connected to one side of the support plate through a bearing, the two second pulleys are fixedly sleeved on the outer walls of the shaft and the rotating shaft, the two second pulleys are rotatably connected to the second belt, the half gear is fixedly sleeved on the outer wall of the rotating shaft, one side of the rack is connected to one of the slides by bolts, and the half gear is meshed with the rack.

[0013] Preferably, the scraping assembly is composed of a scraper and a plurality of scraper rods, and the plurality of scraper rods are staggered and fixed at the bottom of the scraper, and the two sides of the scraper are connected to the two slide plates by bolts.

[0014] The beneficial effects of the present invention are: 1. The present invention uses the conveying mechanism and the cleaning mechanism to start the conveying mechanism when the coal is being conveyed, and the bottom of the conveyor belt will contact the cleaning mechanism when the conveyor belt is returning, so that the bottom of the conveyor belt is cleaned by the cleaning mechanism. During this period, when the conveying mechanism rotates, the two first transmission components will drive the two cleaning components to move. When the first connecting cylinder rotates, since the first connecting cylinder and the second connecting cylinder are provided with a plurality of concave and convex parts on the opposite side, when the first connecting cylinder rotates, the second connecting cylinder will contact the concave and convex parts. The support plate is driven to slide to one side under the action of, and the cleaning plate drives the brush head to move synchronously with the support plate. Since the two cleaning plates are symmetrically and staggeredly distributed on both sides of the conveyor belt, when one of the cleaning plates drives the brush head to slide to one side, the other cleaning plate drives the brush head to move in the opposite direction. Therefore, the cooperation between the two cleaning plates can improve the cleaning range of the return conveyor belt. At the same time, the movement of the conveyor belt and the movement of the cleaning plates are vertically distributed. Therefore, the cleaning plates can effectively scrape away impurities at the bottom of the conveyor belt, thereby improving the cleaning efficiency of the cleaning mechanism for the conveyor belt. 2. The present invention provides a conveying mechanism and a scraping mechanism. When the conveying mechanism conveys the coal, the second transmission assembly will rotate with the rotation of the conveying mechanism. At this time, the rotating shaft will rotate with the rotation of the second transmission assembly, and the rotating shaft will drive the half gear to rotate when rotating. When the teeth of the half gear contact the rack, the half gear will mesh with the rack, and the rack will drive the slide plate and the scraper to move to one side under the action of meshing, so that the scraper rod can scrape the accumulated coal evenly, so as to make the conveyor belt evenly stressed, and prevent the accumulated coal from being squeezed at a certain point of the conveyor belt, causing the conveyor belt to relax under the action of pressure, thereby reducing the tension of the conveyor belt, and further affecting the transportation of the coal. When the teeth of the half gear are away from the rack, the meshing between the rack and the half gear disappears, and the slide plate will drive the scraper to reset under the action of the second spring, and the accumulated coal can be effectively scraped evenly through the reciprocating swing of the scraper rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A structural schematic diagram of a belt conveyor with a return belt cleaning structure proposed by the present invention; Figure 2 A rear view schematic diagram of a belt conveyor with a return belt cleaning structure proposed by the present invention; Figure 3 A schematic diagram of the conveying mechanism structure of a belt conveyor with a return belt cleaning structure proposed by the present invention; Figure 4 A schematic diagram of the cleaning mechanism structure of a belt conveyor with a return belt cleaning structure proposed by the present invention; Figure 5 A schematic diagram of the cleaning component structure of a belt conveyor with a return belt cleaning structure proposed by the present invention; Figure 6 A schematic diagram of the structure of a scraping mechanism of a belt conveyor with a return belt cleaning structure proposed by the present invention; Figure 7 for Figure 6 Schematic diagram of the structure at point A proposed in FIG.

[0016] In the attached drawings: 1. bracket; 2. support plate; 3. conveying mechanism; 4. slide; 5. cleaning mechanism; 6. scraping mechanism; 7. rotating rod; 8. rotating roller; 9. supporting seat; 10. motor; 11. conveyor belt; 12. protective belt; 13. supporting shaft; 14. first belt; 15. first pulley; 16. cleaning assembly; 17. first connecting cylinder; 18. second connecting cylinder; 19. supporting plate; 20. limiting rod; 21. first spring; 22. shaft plate; 23. cleaning plate; 24. brush head; 25. slide plate; 26. scraper; 27. scraper rod; 28. second spring; 29. ​​rack; 30. shaft rod; 31. second pulley; 32. second belt; 33. half gear. DETAILED DESCRIPTION

[0017] Example 1, reference Figure 1-Figure 5 , a belt conveyor with a return belt cleaning structure, comprises a bracket 1 and two support plates 2, the bottoms of the two support plates 2 are welded to the two sides of the top of the bracket 1, a conveying mechanism 3 is arranged between the two support plates 2, the conveying mechanism 3 is composed of two rotating rods 7, two rollers 8, a conveyor belt 11 and a motor 10, and the two ends of the two rotating rods 7 are rotatably connected to the opposite sides of the bracket 1 through bearings, the two rollers 8 are fixedly sleeved on the outer walls of the two rotating rods 7, and the conveyor belt 11 is rotatably connected to the two rollers 8, one side of one of the support plates 2 is connected to the motor 10 by bolts, one end of the motor 10 is fixedly connected to one of the rotating rods 7, and protective belts 12 are arranged on both sides of the outer wall of the conveyor belt 11, a cleaning mechanism 5 is arranged between the opposite sides of the bracket 1, and the top of the cleaning mechanism 5 is in contact with the bottom of the conveying mechanism 3, and the cleaning mechanism 5 and the conveying mechanism 3 are matched.

[0018] On the basis of the above, the two opposite sides of the two support plates 2 are connected with support seats 9 by bolts, and the support seats 9 are slidably connected to the conveyor belt 11, and the support seats 9 are located in the gap of the conveyor belt 11.

[0019] On the basis of the above, the cleaning mechanism 5 is composed of two first transmission components and two cleaning components 16, and the cleaning components 16 are connected to the conveying mechanism 3 through the first transmission components, and the two cleaning components 16 are symmetrically staggered.

[0020] On the basis of the above, the first transmission assembly is composed of two support shafts 13, two first pulleys 15 and a first belt 14, and one of the support shafts 13 is welded to one end of one of the rotating rods 7, and the other support shaft 13 is rotatably connected to one side of the bracket 1 through a bearing, and the two first pulleys 15 are fixedly sleeved on the outer walls of the two support shafts 13, and a rotatably connection is formed between the first belt 14 and the two first pulleys 15.

[0021] On the basis of the above, the cleaning assembly 16 includes a support plate 19, a first connecting tube 17, a second connecting tube 18 and a cleaning plate 23, and a limit rod 20 is connected between one side of the support plate 19 and the bracket 1 by bolts. The limit rod 20 is made of telescopic material, and the outer wall of the limit rod 20 is sleeved with a first spring 21. One side of the first connecting tube 17 is welded to another support shaft 13, and one end of the second connecting tube 18 is connected to the support plate 19 by bolts. The first connecting tube 17 and the second connecting tube 18 are both provided with a side opposite to each other. A plurality of concave and convex parts, one side of the bottom of the cleaning plate 23 and the top of the support plate 19 are connected with an axis plate 22 by bolts, and a plurality of brush heads 24 are arranged on the top of the cleaning plate 23. The brush heads 24 are in contact with the bottom of the conveyor belt 11, which can improve the cleaning range of the return conveyor belt 11. At the same time, the movement of the conveyor belt 11 and the movement of the cleaning plate 23 are vertically distributed. Therefore, the cleaning plate 23 can effectively scrape away impurities at the bottom of the conveyor belt 11, thereby improving the cleaning efficiency of the cleaning mechanism 5 for the conveyor belt 11.

[0022] Example 2, reference Figure 1-Figure 7 , a belt conveyor with a return belt cleaning structure. Compared with Example 1, on the basis of Example 1, a sliding opening 4 is opened on one side of the two support plates 2 near the top, and the inner walls of the two sliding openings 4 are slidably connected with a slide plate 25, and a second spring 28 is connected between one side of the slide plate 25 and the sliding opening 4 by bolts, and a scraping mechanism 6 is arranged between the two slide plates 25, and the scraping mechanism 6 is matched with the conveying mechanism 3.

[0023] On the basis of the above, the scraping mechanism 6 is connected by the second transmission assembly and the scraping assembly, and the scraping assembly is connected to the conveying mechanism 3 through the second transmission assembly.

[0024] On the basis of the above, the second transmission assembly consists of two second pulleys 31, a second belt 32, two shafts 30, a rotating shaft, a half gear 33 and a rack 29, and one end of the shaft 30 is welded to one of the rotating rods 7, one end of the rotating shaft is rotatably connected to one side of the support plate 2 through a bearing, the two second pulleys 31 are fixedly sleeved on the outer walls of the shaft 30 and the rotating shaft, the two second pulleys 31 are rotatably connected to the second belt 32, the half gear 33 is fixedly sleeved on the outer wall of the rotating shaft, one side of the rack 29 is connected to one of the slides 25 by bolts, and the half gear 33 is meshed with the rack 29.

[0025] On the basis of the above, the scraping assembly is composed of a scraper 26 and a plurality of scraper rods 27, and the plurality of scraper rods 27 are staggered and fixed at the bottom of the scraper 26, and the two sides of the scraper 26 are connected to the two slides 25 by bolts, so that the scraper rods 27 can scrape the accumulated coal to make the force on the conveyor belt 11 uniform, and prevent the accumulated coal from being squeezed at a certain point of the conveyor belt 11, causing the conveyor belt 11 to relax under the action of pressure, thereby reducing the tension of the conveyor belt 11, and further affecting the transportation of the coal.

[0026] In summary, with the aid of the above technical solution of the present invention: when the coal is transported, the conveying mechanism 3 is started, and the coal is transported by the conveying mechanism 3, and when the conveyor belt 11 is returning, the bottom of the conveyor belt 11 will contact the cleaning mechanism 5, so that the bottom of the conveyor belt 11 is cleaned by the cleaning mechanism 5. During this period, when the conveyor mechanism 3 is rotating, the two first transmission components will drive the two cleaning components 16 to move. When the first connecting cylinder 17 is rotating, since the first connecting cylinder 17 and the second connecting cylinder 18 are opposite to each other on one side thereof, a plurality of concave-convex parts are provided. Therefore, when the first connecting cylinder 17 is rotating, the first connecting cylinder 17 and the second connecting cylinder 18 are opposite to each other. When the connecting cylinder 17 rotates, the second connecting cylinder 18 will drive the support plate 19 to slide to one side under the action of the concave and convex parts, and the cleaning plate 23 will drive the brush head 24 to move synchronously with the support plate 19. Since the two cleaning plates 19 are symmetrically staggered on both sides of the conveyor belt 11, when one of the cleaning plates 23 drives the brush head 24 to slide to one side, the other cleaning plate 23 will drive the brush head 24 to move in the opposite direction, so that the cleaning range of the return conveyor belt 11 can be improved through the cooperation between the two cleaning plates 23. At the same time, the movement of the conveyor belt 11 and the movement of the cleaning plate 23 are vertically distributed. Therefore, the cleaning plate 23 can effectively scrape away impurities at the bottom of the conveyor belt 11, thereby improving the cleaning efficiency of the cleaning mechanism 5 on the conveyor belt 11. When the conveying mechanism 3 conveys the coal, the second transmission assembly will rotate with the rotation of the conveying mechanism 3. At this time, the rotating shaft will rotate with the rotation of the second transmission assembly, and the rotating shaft will drive the half gear 33 to rotate when rotating. When the teeth of the half gear 33 contact the rack 29, the half gear 33 will mesh with the rack 29, and the rack 29 will drive the slide plate 25 and the scraper 26 to move toward one side under the action of meshing. The scraper 25 moves sideways, so that the scraper 27 can evenly scrape the accumulated coal, so as to make the conveyor belt 11 evenly stressed, and prevent the accumulated coal from being squeezed at a certain point of the conveyor belt 11, causing the conveyor belt 11 to relax under the action of pressure, thereby reducing the tension of the conveyor belt 11, thereby affecting the transportation of the coal. When the teeth of the half gear 33 are away from the rack 29, the meshing between the rack 29 and the half gear 33 disappears, and the slide plate 25 will drive the scraper 26 to reset under the action of the second spring 28. The reciprocating swing of the scraper bar 27 can effectively scrape the accumulated coal evenly.

[0027] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A belt conveyor with a return belt cleaning structure, comprising a support (1) and two support plates (2), the bottoms of the two support plates (2) being welded to the two sides of the top of the support (1), and a conveying mechanism (3) being arranged between the two support plates (2), characterized in that: The conveying mechanism (3) is composed of two rotating rods (7), two rotating rollers (8), a conveyor belt (11) and a motor (10), and the two ends of the two rotating rods (7) are rotatably connected to the two opposite sides of the bracket (1) through bearings, the two rotating rollers (8) are fixedly sleeved on the outer walls of the two rotating rods (7), the conveyor belt (11) and the two rotating rollers (8) are rotatably connected, one side of one of the support plates (2) is connected to the motor (10) by bolts, one end of the motor (10) is fixedly connected to one of the rotating rods (7), both sides of the outer wall of the conveyor belt (11) are provided with protective belts (12), and a cleaning mechanism (5) is provided between the two opposite sides of the bracket (1), and the top of the cleaning mechanism (5) is in contact with the bottom of the conveying mechanism (3), and the cleaning mechanism (5) and the conveying mechanism (3) are matched.

2. The belt conveyor with a return belt cleaning structure according to claim 1, characterized in that: The two opposite sides of the two support plates (2) are connected to support seats (9) via bolts, and the support seats (9) are slidably connected to the conveyor belt (11), and the support seats (9) are located in the gap of the conveyor belt (11).

3. The belt conveyor with a return belt cleaning structure according to claim 1, characterized in that: The cleaning mechanism (5) is composed of two first transmission assemblies and two cleaning assemblies (16), and the cleaning assemblies (16) are connected to the conveying mechanism (3) via the first transmission assemblies, and the two cleaning assemblies (16) are symmetrically and staggeredly distributed.

4. The belt conveyor with a return belt cleaning structure according to claim 3, characterized in that: The first transmission assembly is composed of two support shafts (13), two first pulleys (15) and a first belt (14), wherein one of the support shafts (13) is welded to one end of one of the rotating rods (7), the other support shaft (13) is rotationally connected to one side of the bracket (1) via a bearing, the two first pulleys (15) are fixedly sleeved on the outer walls of the two support shafts (13), and the first belt (14) is rotationally connected to the two first pulleys (15).

5. The belt conveyor with a return belt cleaning structure according to claim 4, characterized in that: The cleaning assembly (16) comprises a support plate (19), a first connecting tube (17), a second connecting tube (18) and a cleaning plate (23), and a limit rod (20) is connected between one side of the support plate (19) and the bracket (1) by bolts, the limit rod (20) is made of a telescopic material, and a first spring (21) is sleeved on the outer wall of the limit rod (20), one side of the first connecting tube (17) is welded to another support shaft (13), one end of the second connecting tube (18) is connected to the support plate (19) by bolts, and a plurality of concave and convex portions are arranged on opposite sides of the first connecting tube (17) and the second connecting tube (18), and a shaft plate (22) is connected between one side of the bottom of the cleaning plate (23) and the top of the support plate (19) by bolts, and a plurality of brush heads (24) are arranged on the top of the cleaning plate (23), and the brush heads (24) are in contact with the bottom of the conveyor belt (11).

6. The belt conveyor with a return belt cleaning structure according to claim 1, characterized in that: A sliding opening (4) is provided at a position near the top of one side of the two support plates (2), and a slide plate (25) is slidably connected to the inner wall of the two slide plates (4). A second spring (28) is connected between one side of the slide plate (25) and the sliding opening (4) via bolts. A scraping mechanism (6) is provided between the two slide plates (25), and the scraping mechanism (6) is matched with the conveying mechanism (3).

7. The belt conveyor with a return belt cleaning structure according to claim 6, characterized in that: The scraping mechanism (6) is in contact with the second transmission assembly and the scraping assembly, and the scraping assembly is connected to the conveying mechanism (3) via the second transmission assembly.

8. The belt conveyor with a return belt cleaning structure according to claim 7, characterized in that: The second transmission assembly comprises two second pulleys (31), a second belt (32), two shafts (30), a rotating shaft, a half gear (33) and a rack (29), wherein one end of the shaft (30) is welded to one of the rotating rods (7), one end of the rotating shaft is rotationally connected to one side of the support plate (2) via a bearing, the two second pulleys (31) are respectively fixedly sleeved on the outer walls of the shaft (30) and the rotating shaft, the two second pulleys (31) and the second belt (32) are rotationally connected, the half gear (33) is fixedly sleeved on the outer wall of the rotating shaft, one side of the rack (29) is connected to one of the slide plates (25) via bolts, and the half gear (33) is meshed with the rack (29).

9. The belt conveyor with a return belt cleaning structure according to claim 8, characterized in that: The scraping assembly is composed of a scraper (26) and a plurality of scraper rods (27), wherein the plurality of scraper rods (27) are staggered and fixed at the bottom of the scraper (26), and the two sides of the scraper (26) are connected to the two slide plates (25) by bolts.

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