Intelligent back-throwing belt conveyor unloader

Abstract

The invention discloses an intelligent back-throwing belt conveyor unloader. The intelligent back-throwing belt conveyor unloader comprises a rack, a distributing assembly, a pressing assembly, a supporting assembly, a transmission assembly and a self-compensation system. The material distributing assembly comprises a discharging hopper and a guide groove, the downward pressing assembly comprises a power mechanism, a downward pressing roller and a first roller seat, and the upward supporting assembly comprises a first upper supporting roller, a second upper supporting roller, a second roller seat and a third roller seat. The transmission assembly comprises a first chain wheel, a first chain, a second chain wheel and a second chain, and the conveying belt is located below the lower pressing roller and located above the first upper carrier roller and the second upper carrier roller. The discharging hopper meets the discharging requirement by pressing the height of the conveying belt downwards, the conveying belt returns to the normal state by releasing the lower discharging hopper, abrasion to the conveying belt is small, and the discharging hopper has the advantages of being low in loss, stable in discharging, low in noise and the like.

Description

Technical Field

[0001] The invention belongs to the technical field of material conveying, and in particular is an intelligent back-throwing belt conveyor unloader. Background Art

[0002] The more common fixed-point unloading methods for multi-point unloading belt conveyors are plow-type unloaders and throwing-type unloaders. The plow-type unloader flattens and clamps the belt to a certain extent through the movement of the unloading plow and tray located above and below the conveyor belt, and scrapes the material above the conveyor belt from both sides of the belt. The problem is that the scraper wear-resistant plow blade contacts the belt and has a certain pressure, which causes the scraper plow blade and the belt to wear faster, and there will be a certain amount of residue on the belt due to the problem of broken materials. The throwing-type unloader passes the conveyor belt through a climbing slope around a high-position roller and then down around a low-position roller, thereby throwing the material from the high-position roller. If unloading is required, a receiving hopper is used to guide the material to flow down on both sides of the belt. If unloading is not required, the thrown material falls on the belt and is transported in the original direction. If there are multiple unloading points, it needs to be thrown multiple times. Although this unloading method does not have residue, after multiple throwing, the broken material will rise, and the belt tension will increase, resulting in increased power consumption. Summary of the invention

[0003] The object of the present invention is to provide a belt conveyor discharger with less belt wear and low loss in view of the above-mentioned deficiencies in the prior art.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: An intelligent back-throwing belt conveyor unloader is used for unloading materials on a conveyor belt of a belt conveyor, and comprises: a frame, a material dividing component, a lower pressing component, an upper supporting component, a transmission component and a self-compensation system.

[0005] The material distribution assembly comprises a discharge hopper and a guide groove, wherein the guide groove is fixedly connected to the frame. A guide column is arranged on the side of the discharge hopper, and the guide column is slidably matched with the guide groove.

[0006] The pressing assembly comprises a power mechanism, a pressing roller and a first roller seat. The discharge hopper is hinged to the pressing roller. The end of the pressing roller is rotatably connected to the first roller seat. The power mechanism drives the first roller seat to move up and down.

[0007] The upper support assembly includes a first upper roller, a second upper roller, a second roller seat and a third roller seat. The lower pressure roller is located between the first upper roller and the second upper roller. The end of the first upper roller is rotatably connected to the second roller seat, and the end of the second upper roller is rotatably connected to the third roller seat.

[0008] The transmission assembly includes a first sprocket, a first chain, a second sprocket and a second chain, one end of the first chain is fixedly connected to the first roller seat, and the other end is upwardly bypassed by the first sprocket and then downwardly fixedly connected to the second roller seat, one end of the second chain is fixedly connected to the second roller seat, and the other end is upwardly bypassed by the second sprocket and then downwardly fixedly connected to the third roller seat.

[0009] The conveyor belt is installed below the lower pressure roller and is located above the first upper roller and the second upper roller.

[0010] Furthermore, the frame is vertically provided with a first guide rail, a second guide rail and a third guide rail; the first roller seat is provided with a first slider, the second roller seat is provided with a second slider, and the third roller seat is provided with a third slider; the first slider cooperates with the first guide rail, the second slider cooperates with the second guide rail, and the third slider cooperates with the third guide rail.

[0011] Furthermore, the discharge hopper includes a shovel plate and baffles on both sides of the shovel plate, a V-shaped material dividing plate is provided in the middle of the shovel plate, a discharge port is provided on the baffle, and the guide column is fixedly connected to the baffle.

[0012] Furthermore, the guide groove includes an arc segment and a vertical segment, wherein the vertical segment is located above the lower pressure roller, and the arc segment is connected to the upper end of the vertical segment.

[0013] Furthermore, the power mechanism is a cylinder, a hydraulic cylinder or a lead screw.

[0014] Furthermore, the lower pressure roller, the first upper roller, and the second upper roller all include a roller and a roller shaft, and the roller is coaxially fixedly connected to the roller shaft.

[0015] Furthermore, the self-compensating system includes a belt telescopic frame, a traction rope, a pulley and a counterweight, the belt telescopic frame includes a first shell, a second shell, a track and a tensioning pulley, the first shell is sleeved on one end of the second shell, the first shell is fixedly connected to a belt conveyor that drives the conveyor belt, the tensioning pulley is rotatably connected to the first shell, the tensioning pulley cooperates with the track, one end of the traction rope is connected to the first shell; the other end of the traction rope passes around the pulley and is fixedly connected to the counterweight.

[0016] Furthermore, the self-compensating system also includes a bracket, a third sprocket and a third chain, the third sprocket is rotatably connected to the lower part of the bracket, the pulley is rotatably connected to the upper part of the bracket, the end of the traction rope is fixedly connected to the third chain and connected to the first shell through the third chain, and the third sprocket cooperates with the third chain.

[0017] Furthermore, the self-compensating system also includes a telescopic mechanism, a rack and a compensation gear, the rack is fixedly connected to the telescopic mechanism, the compensation gear is meshed with the rack, and the compensation gear is coaxially fixedly connected to the third sprocket.

[0018] The beneficial effects of the present invention are as follows: the intelligent intelligent back-throwing belt conveyor unloader currently designed adopts a lower pressure roller, a first upper roller, and a second upper roller to rotate with the conveyor belt, and the unloading hopper meets the unloading needs by pressing down the height of the conveyor belt, and the conveyor belt is restored to normal by releasing the lower unloading hopper, which has the characteristics of small wear on the conveyor belt, low loss, stable unloading, and low noise. The system does not require too many intermediate mechanical transmission mechanisms, and the downward pressure unloading device eliminates the wear on the belt caused by the unloading hopper when unloading, realizes wear-free unloading, and can effectively improve the durability of the equipment and production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of an embodiment; Figure 2 It is a right view with the right side pressing component and the upper supporting component hidden; Figure 3 is a schematic diagram of a self-compensating system; Figure 4 is an overall schematic diagram of an embodiment applied to a belt conveyor system; Marking description: 1-frame, 11-discharging hopper, 111-shovel plate, 112-baffle, 113-distribution plate, 114-discharging port, 12-guide groove, 121-arc section, 122-vertical section, 13-guide column, 21-power mechanism, 22-lower pressure roller, 23-first roller seat, 31-first upper roller, 32-second upper roller, 311-roller, 312-roller shaft, 33-second roller seat, 34-third roller seat, 41-first sprocket, 42-first chain, 43-second sprocket, 44-second chain, 5-conveyor belt, 61-first guide rail, 62-second guide rail, 63-third guide rail, 64-first slider, 65-second slider, 66-third slider, 71-first shell, 72-second shell, 73-track, 74-tensioning wheel, 75-traction rope, 76-pulley, 77-counterweight, 78-bracket, 79-third sprocket, 80-third chain, 81-telescopic mechanism, 82-rack, 83-compensation gear. DETAILED DESCRIPTION

[0020] The following is a description of the implementation of the present invention by means of specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0021] like Figure 1 to Figure 2As shown, an intelligent back-throwing belt conveyor unloader includes: a material dividing component, a pressing component, an upper supporting component, a transmission component and a self-compensation system. It is applied to unloading materials on the conveyor belt 5 of the belt conveyor.

[0022] The material distribution assembly includes a discharge hopper 11 and a guide groove 12, wherein the guide groove 12 is fixedly connected to the frame 1. A guide column 13 is provided on the side of the discharge hopper 11, and the guide column 13 is slidably matched with the guide groove 12.

[0023] The pressing assembly includes a power mechanism 21, a pressing roller 22 and a first roller seat 23. The power mechanism 21 is a cylinder, a hydraulic cylinder or a lead screw. The discharge hopper 11 is hinged with the pressing roller 22, and the end of the pressing roller 22 is rotatably connected with the first roller seat 23. The power mechanism 21 drives the first roller seat 23 to move up and down.

[0024] The upper supporting assembly includes a first upper roller 31, a second upper roller 32, a second roller seat 33 and a third roller seat 34. The lower pressure roller 22 is located between the first upper roller 31 and the second upper roller 32. The end of the first upper roller 31 is rotatably connected to the second roller seat 33, and the end of the second upper roller 32 is rotatably connected to the third roller seat 34.

[0025] The transmission assembly includes a first sprocket 41, a first chain 42, a second sprocket 43 and a second chain 44. One end of the first chain 42 is fixedly connected to the first roller seat 23, and the other end is upwardly bypassed by the first sprocket 41 and then downwardly fixedly connected to the second roller seat 33. One end of the second chain 44 is fixedly connected to the second roller seat 33, and the other end is upwardly bypassed by the second sprocket 43 and then downwardly fixedly connected to the third roller seat 34.

[0026] The conveyor belt 5 is located below the lower pressure roller 22 and above the first upper roller 31 and the second upper roller 32 .

[0027] When the lower pressure roller 22 moves downward, due to the traction of the first chain 42 and the second chain 44, the first upper roller 31 and the second upper roller 32 will rise synchronously, the lower pressure roller 22 presses the belt downward, and the first upper roller 31 and the second upper roller 32 support the belt, so that the belt forms an M shape, and the material is thrown when it reaches the highest point. Due to the action of the guide groove 12, the discharge hopper 11 comes into contact with the conveyor belt 5 and plows the material.

[0028] The frame 6 is vertically provided with a first guide rail 61, a second guide rail 62 and a third guide rail 63; the first roller seat 23 is provided with a first slider 64, the second roller seat 33 is provided with a second slider 65, and the third roller seat 34 is provided with a third slider 66; the first slider 64 cooperates with the first guide rail 61, the second slider 65 cooperates with the second guide rail 62, and the third slider 66 cooperates with the third guide rail 63. The first roller seat 23, the second roller seat 33 and the third roller seat 34 are guided by the guide rails and the sliders to ensure the accuracy of their movement.

[0029] The guide groove 12 includes an arc segment 121 and a vertical segment 122, wherein the vertical segment is located above the lower pressing roller 22, and the arc segment 121 is connected to the upper end of the vertical segment 122. The discharge hopper 11 is pressed down from the uppermost point to the lowest point, and the guide post 13 moves from the arc segment to the vertical segment 122 in the guide groove 12. Due to the constraint of the guide groove 12, the discharge hopper 11 will not swing when impacted by the material, thereby preventing leakage.

[0030] The discharge hopper 11 includes a shovel plate 111 and baffles 112 on both sides of the shovel plate 111 . A V-shaped material dividing plate 113 is provided in the middle of the shovel plate 111 . A discharge port 114 is provided on the baffle 112 . The guide column 13 is fixedly connected to the baffle 112 .

[0031] The lower pressure roller 22 , the first upper support roller 31 , and the second upper support roller 32 all include a roller 311 and a roller shaft 312 , and the roller is coaxially fixedly connected to the roller shaft.

[0032] like Figure 3 As shown, the self-compensating system includes a belt telescopic frame, a traction rope 75, a pulley 76 and a counterweight 77. The belt telescopic frame includes a first shell 71, a second shell 72, a track 73 and a tensioner 74. The first shell 71 is sleeved on one end of the second shell 72. The first shell 71 is fixedly connected to the belt conveyor that drives the conveyor belt 5. The tensioner 74 is rotatably connected to the first shell 71. The tensioner 74 cooperates with the track 73. One end of the traction rope 75 is connected to the first shell 71; the other end of the traction rope 75 passes around the pulley 76 and is fixedly connected to the counterweight 77.

[0033] The self-compensating system also includes a bracket 78, a third sprocket 79 and a third chain 80. The third sprocket 79 is rotatably connected to the lower part of the bracket 78, the pulley 76 is rotatably connected to the upper part of the bracket 78, the end of the traction rope 75 is fixedly connected to the third chain 80 and is connected to the first shell 71 through the third chain 80, and the third sprocket 79 cooperates with the third chain 80.

[0034] The self-compensation system generates an outward force to tighten the conveyor belt 5 through the traction of the counterweight 77, thereby ensuring the friction between the belt conveyor and the conveyor to prevent slipping.

[0035] The self-compensation system further includes a telescopic mechanism 81, a rack 82 and a compensation gear 83, wherein the rack 82 is fixedly connected to the telescopic mechanism 81, the compensation gear 83 is meshed with the rack 82, and the compensation gear 83 is coaxially fixedly connected to the third sprocket 79. The telescopic mechanism 81 may be a cylinder, and the amount of compensation is controlled by adjusting the stroke of the cylinder.

[0036] The discharge hopper 11 is driven by the pressing assembly to transmit the transmission assembly to the discharge hopper 11 to move up and down. The discharge hopper 11 meets the discharge needs by pressing down the height of the conveyor belt 5. By releasing the lower discharge hopper 11, the conveyor belt 5 returns to normal. The material can pass normally, and the discharge can be quickly realized through this device. When implemented, the discharger is equipped with a limit device and a control sensing device. Synchronous adjustment is enabled, and the tension wheel 74 moves forward and backward to compensate for the extension deformation of the conveyor belt 5 when it is pressed down.

[0037] Figure 4 It is a schematic diagram of the application of this embodiment to the overall belt conveyor system. The intelligent back-throwing belt conveyor unloader of the present invention solves the shortcomings of the plow-type unloader and the throwing-type unloader, integrates the advantages of both, and can achieve intelligent adjustment through the system control algorithm. The system does not require too many intermediate mechanical transmission mechanisms, and the self-compensating downward pressure unloading device eliminates the wear on the conveyor belt 5 when the unloading hopper 11 is unloading, realizing wear-free unloading, which can effectively improve the equipment durability and production efficiency.

[0038] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the invention claimed for protection. The scope of protection claimed for the present invention is defined by the attached claims and their equivalents.

[0039] In the description of the present invention, it is necessary to understand that the terms "front", "rear", "left", "right", "center", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the protection content of the present invention.

Claims

1. An intelligent belt conveyor unloader, used for unloading materials from a conveyor belt (5) of a belt conveyor, characterized in that: include: Rack (1); A material distribution assembly comprises a discharge hopper (11) and a guide groove (12), wherein the guide groove (12) is fixedly connected to the frame (1), and a guide column (13) is provided on the side of the discharge hopper (11), and the guide column (13) is slidably matched with the guide groove (12); A pressing assembly comprises a power mechanism (21), a pressing roller (22) and a first roller seat (23); the discharge hopper (11) is rotatably connected to the pressing roller (22); the end of the pressing roller (22) is rotatably connected to the first roller seat (23); and the power mechanism (21) drives the first roller seat (23) to move up and down; An upper supporting assembly comprises a first upper supporting roller (31), a second upper supporting roller (32), a second roller seat (33) and a third roller seat (34); the lower pressure roller (22) is located between the first upper supporting roller (31) and the second upper supporting roller (32); the end of the first upper supporting roller (31) is rotatably connected to the second roller seat (33); and the end of the second upper supporting roller (32) is rotatably connected to the third roller seat (34); as well as A transmission assembly, comprising a first sprocket (41), a first chain (42), a second sprocket (43) and a second chain (44), wherein one end of the first chain (42) is fixedly connected to the first roller seat (23), and the other end of the first chain (42) is upwardly bypassed by the first sprocket (41) and then downwardly fixedly connected to the second roller seat (33); one end of the second chain (44) is fixedly connected to the second roller seat (33), and the other end of the second chain (44) is upwardly bypassed by the second sprocket (43) and then downwardly fixedly connected to the third roller seat (34); Wherein, the conveyor belt (5) is installed below the lower pressure roller (22) and is located above the first upper roller (31) and the second upper roller (32).

2. According to claim 1, the intelligent back-throwing belt conveyor unloader is characterized in that: The frame (1) is vertically provided with a first guide rail (61), a second guide rail (62) and a third guide rail (63); the first roller seat (23) is provided with a first slider (64), the second roller seat (33) is provided with a second slider (65), and the third roller seat (34) is provided with a third slider (66); the first slider (64) cooperates with the first guide rail (61), the second slider (65) cooperates with the second guide rail (62), and the third slider (66) cooperates with the third guide rail (63).

3. According to claim 1, the intelligent back-throwing belt conveyor unloader is characterized in that: The guide groove (12) comprises an arc segment (121) and a vertical segment (122), wherein the vertical segment (122) is located above the lower pressure roller (22), and the arc segment (121) is connected to the upper end of the vertical segment (122).

4. According to claim 1, the intelligent back-throwing belt conveyor unloader is characterized in that: The discharge hopper (11) comprises a shovel plate (111) and baffles (112) on both sides of the shovel plate (111); a V-shaped material dividing plate (113) is provided in the middle of the shovel plate (111); a discharge port (114) is provided on the baffle (112); and the guide column (13) is fixedly connected to the baffle (112).

5. According to claim 1, the intelligent back-throwing belt conveyor unloader is characterized in that: The lower pressure roller (22), the first upper support roller (31), and the second upper support roller (32) all comprise a roller (311) and a roller shaft (312), and the roller (311) and the roller shaft (312) are coaxially fixedly connected.

6. According to the intelligent back-throwing belt conveyor discharger of claim 1, it is characterized in that: The power mechanism (21) is a cylinder, a hydraulic cylinder or a lead screw.

7. The intelligent back-throwing belt conveyor discharger according to any one of claims 1 to 6, characterized in that: It also includes a self-compensating system, which includes a belt expansion and contraction frame, a traction rope (75), a pulley (76) and a counterweight (77). The belt expansion and contraction frame includes a first shell (71), a second shell (72), a track (73) and a tensioning wheel (74). The first shell (71) is sleeved on one end of the second shell (72). The first shell (71) is fixedly connected to a belt conveyor that drives the conveyor belt (5). The tensioning wheel (74) is rotatably connected to the first shell (71). The tensioning wheel (74) cooperates with the track (73). One end of the traction rope (75) is connected to the first shell (71); the other end of the traction rope (75) passes around the pulley (76) and is fixedly connected to the counterweight (77).

8. The intelligent back-throwing belt conveyor unloader according to claim 7 is characterized in that: The self-compensating system also includes a bracket (78), a third sprocket (79) and a third chain (80); the third sprocket (79) is rotatably connected to the lower part of the bracket (78); the pulley (76) is rotatably connected to the upper part of the bracket (78); the end of the traction rope (75) is fixedly connected to the third chain (80) and connected to the first shell (71) through the third chain (80); the third sprocket (79) cooperates with the third chain (80).

9. The intelligent back-throwing belt conveyor unloader according to claim 8 is characterized in that: The self-compensating system further comprises a telescopic mechanism (81), a rack (82) and a compensating gear (83); the rack (82) is fixedly connected to the telescopic mechanism (81); the compensating gear (83) is meshed with the rack (82); and the compensating gear (83) is coaxially fixedly connected to the third sprocket (79).

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