Blockage detection device for hopper of belt conveyor

Abstract

The utility model discloses a material blockage detection device for a hopper of a belt conveyer, which comprises a rack, a conveying belt is movably connected in the rack, a hopper is arranged below the output end of the conveying belt, two sides of the hopper are respectively and movably connected with a side plate, the side plates are fixedly connected with the rack, and the outside of the hopper is movably connected with a dredging piece. The hopper is arranged at the outlet end of the conveying belt, the side plates are movably connected to the two sides of the hopper respectively, the pressure sensors are arranged in the side plates, when the numerical value of the pressure sensors changes up and down, the hopper conducts normal feeding, and when the index of the pressure sensors rises all the time and does not decrease, the pressure sensors conduct normal feeding. If the hopper is blocked, the hopper is blocked, the conveying belt is closed, and then the dredging piece is used for breaking and dredging the blocked materials in the hopper, so that the functions of detecting and automatically dredging the blocked materials in the hopper are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of belt conveyor equipment, in particular to a belt conveyor hopper material blocking detection device. Background Art

[0002] Belt conveyor is a machine that uses the infinite motion of belt to transport materials. Belt conveyor is widely used in transportation and production lines in mining, metallurgy, chemical industry, casting, building materials and other industries, as well as production departments such as hydropower station construction sites and ports. It is mainly used to transport crushed materials. According to the requirements of the conveying process, it can be transported by a single unit, or it can be composed of multiple units or other conveying equipment to form a horizontal or inclined conveying system. It is suitable for conveying powdery, granular, small-block low-abrasive materials and bagged materials with a bulk density of less than 1.67 / ton / cubic meter, which are easy to take out, such as coal, gravel, sand, cement, fertilizer, grain, etc. The temperature of the conveyed material is less than 60℃. Its length and assembly form can be determined according to user requirements. The transmission can be an electric roller or a drive device with a drive frame.

[0003] However, due to the influence of large pieces, yellow mud, ironware and debris, the hopper will inevitably be blocked. When an occasional failure occurs and the machine cannot be shut down, it will cause damage to equipment such as the roller and belt, causing heavy losses. The existing blocking device cannot ensure 100% alarm shutdown. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a belt conveyor hopper material blocking detection device.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a belt conveyor hopper blockage detection device, comprising a frame, a conveyor belt movably connected inside the frame, a hopper is provided below the output end of the conveyor belt, a side plate movably connected to each side of the hopper, the side plate is fixedly connected to the frame, and the outside of the hopper is movably connected to a clearing piece.

[0006] As a further description of the above technical solution: the inner wall of the frame is horizontally rotatably connected to multiple equally spaced conveying rollers, the outer edges of the multiple conveying rollers are jointly connected to a conveyor belt, the outside of the frame is horizontally fixed with a conveying motor, and the output end of the conveying motor is drivingly connected to the end of one of the conveying rollers.

[0007] As a further description of the above technical solution: a guide groove is vertically opened on the inner side of each of the two side plates, a spring is vertically fixed in the guide groove, the end of the spring is fixedly connected to a guide block, the guide block is slidably connected in the guide groove and fixedly connected to the hopper, a pressure sensor is provided under the guide block, and the pressure sensor is fixed to the bottom wall of the guide groove.

[0008] As a further description of the above technical solution: the clearing member includes a top plate that is lifted and connected above the hopper, and a countersunk groove is vertically opened on the bottom surface of the top plate. A plurality of equally spaced drive shafts are rotatably connected in the countersunk groove. The outer edge of each drive shaft is fixedly sleeved with a gear, and the gears are meshed with each other. The outsides of the plurality of drive shafts are rotatably sleeved with a cover plate, and the cover plate is fixed in the countersunk groove by bolts. A drive motor is vertically fixed on the top surface of the top plate, and the output end of the drive motor is transmission-connected to one of the drive shafts, and the outside of each drive shaft is fixedly connected to a plurality of equally spaced crushing teeth.

[0009] As a further description of the above technical solution: a first support block is fixed on each of the front and rear sides of the top plate, a first guide rod is vertically fixed on the bottom surface of each of the first support blocks, the end of the first guide rod is fixedly connected to a limit block, the outside of the first guide rod is movably sleeved with a support plate, and the support plate is fixedly connected to the hopper.

[0010] As a further description of the above technical solution: the top surface of the support plate vertically passes through the guide hole, the first guide rod axially slides and passes through the guide hole, the side of the top plate is fixedly connected to two second support blocks that are mirror-symmetrical front and back, and a second guide rod is vertically fixed to the bottom surface of each of the second support blocks, and the end of each of the second guide rods is transmission-connected to a lifting motor, and the two lifting motors are fixedly connected to the hopper.

[0011] The utility model has the following beneficial effects:

[0012] Compared with the prior art, the belt conveyor hopper blockage detection device arranges a hopper at the outlet end of the conveyor belt, movably connects a side plate on each side of the hopper, and arranges a pressure sensor in the side plate. When the value of the pressure sensor changes up and down, it indicates that the hopper is feeding normally. When the index of the pressure sensor keeps rising and does not decrease, it indicates that the hopper is blocked and the conveyor belt will be closed. Then, the clearing piece will break and clear the blocked material in the hopper, thereby achieving the function of detecting and automatically clearing the blockage in the hopper. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a three-dimensional diagram of the overall structure of a belt conveyor hopper blocking detection device proposed by the utility model;

[0014] Figure 2 This is a side sectional view of the overall structure of a belt conveyor hopper blocking detection device proposed by the utility model;

[0015] Figure 3For a material hopper blockage detection device of a belt conveyor proposed by the present utility model Figure 2 The enlarged view of the structure at position A in

[0016] Figure 4 The side sectional view of the connection between the hopper and the side plate of a material hopper blockage detection device of a belt conveyor proposed by the present utility model.

[0017] Legend description:

[0018] 1. Frame; 2. Conveyor belt; 3. Driving motor; 4. Top plate; 5. Second support block; 6. First support block; 7. First guide rod; 8. Guide hole; 9. Support plate; 10. Limit block; 11. Lifting motor; 12. Driving shaft; 13. Hopper; 14. Second guide rod; 15. Crushing teeth; 16. Side plate; 17. Gear; 18. Countersunk head groove; 19. Cover plate; 20. Guide groove; 21. Spring; 22. Guide block; 23. Pressure sensor. Specific implementation manners

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0020] Referring to Figures 1 to 4 , a material hopper blockage detection device provided by the present utility model: includes a frame 1, a conveyor belt 2 is movably connected inside the frame 1, a plurality of equally spaced conveyor rollers are horizontally rotatably connected to the inner wall of the frame 1, the outer edges of the plurality of conveyor rollers are jointly sleeved with a conveyor belt 2, a conveyor motor is horizontally fixed outside the frame 1, the output end of the conveyor motor is drivingly connected to the end of one of the conveyor rollers, a hopper 13 is provided below the output end of the conveyor belt 2, each side of the hopper 13 is movably connected with a side plate 16, the side plate 16 is fixedly connected to the frame 1, a guide groove 20 is vertically opened on the inner side of each of the two side plates 16, a spring 21 is vertically fixed in the guide groove 20, the end of the spring 21 is fixedly connected to a guide block 22, the guide block 22 is slidably connected in the guide groove 20 and is fixedly connected to the hopper 13, a pressure sensor 23 is provided below the guide block 22, the pressure sensor 23 is fixed on the bottom wall of the guide groove 20, and a dredging member is movably connected to the outside of the hopper 13;

[0021] The dredging part includes a top plate 4 that is vertically connected above the hopper 13. A first support block 6 is fixed to each of the front and rear sides of the top plate 4. A first guide rod 7 is vertically fixed to the bottom surface of each first support block 6. A limit block 10 is fixedly connected to the end of the first guide rod 7. A support plate 9 is movably sleeved outside the first guide rod 7. The support plate 9 is fixedly connected to the hopper 13. A guide hole 8 is vertically penetrated through the top surface of the support plate 9. The first guide rod 7 axially slides through the guide hole 8. Two second support blocks 5 that are mirror-symmetrical front and rear are fixedly connected to the side surface of the top plate 4. A second guide rod 14 is vertically fixed to the bottom surface of each second support block 5. A lifting motor 11 is drivingly connected to the end of each second guide rod 14. Both lifting motors 11 are fixedly connected to the hopper 13. A counterbore 18 is vertically opened on the bottom surface of the top plate 4. A plurality of equally spaced drive shafts 12 are rotatably connected in the counterbore 18. A gear 17 is fixedly sleeved on the outer edge of each drive shaft 12. The gears 17 mesh with each other. A cover plate 19 is rotatably sleeved outside the plurality of drive shafts 12. The cover plate 19 is fixed in the counterbore 18 by bolts. A drive motor 3 is vertically fixed to the top surface of the top plate 4. The output end of the drive motor 3 is drivingly connected to one of the drive shafts 12. A plurality of equally spaced crushing teeth 15 are fixedly connected to the outside of each drive shaft 12.

[0022] By arranging a hopper 13 at the outlet end of the conveyor belt 2, a side plate 16 is movably connected to each side of the hopper 13. A pressure sensor 23 is arranged in the side plate 16. When the value of the pressure sensor 23 is changing up and down, it indicates that the hopper 13 is feeding normally. When the index of the pressure sensor 23 has been rising and not shrinking, it indicates that the hopper 13 is blocked. The conveyor belt will close, and then the dredging part will break and dredge the blocked materials in the hopper 13, thus playing the functions of detecting and automatically dredging the blocked materials in the hopper 13.

[0023] Working principle: During use, the material is sent to the hopper 13 by the conveyor belt 2. When the material enters the hopper 13, due to the impact force during the falling of the material, the hopper 13 descends slightly, and at the same time the spring 21 is stretched, and the guide block 22 squeezes the pressure sensor 23. When the value of the pressure sensor 23 changes up and down, it indicates that the hopper 13 is feeding normally and there is no material blockage in the hopper 13. When the index of the pressure sensor 23 keeps rising without shrinking, it indicates that there is a material blockage in the hopper 13, and the conveyor belt will be closed. Then, the blocking material in the hopper 13 is broken and dredged by the dredging part. The driving motor 3 drives each driving shaft 12 to rotate through the gear 17. At the same time, the lifting motor 11 drives the top plate 4 to descend, and the top plate 4 drives the rotating driving shaft 12 to descend into the blocked hopper 13. The material blocked in the hopper 13 will be rotated and crushed by the crushing teeth 15 on the rotating drive, so that the material blocking the hopper 13 can be discharged smoothly. After the hopper 13 is dredged, the overall weight of the hopper 13 decreases, the spring 21 resets, driving the hopper 13 to reset. After the value detected by the pressure sensor 23 decreases, the top plate 4 rises to pull the driving shaft 12 out of the hopper 13, and then the conveyor belt 2 starts to run again, thus playing the functions of detecting and automatically dredging the material blockage in the hopper 13.

[0024] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A belt conveyor hopper blocking detection device, comprising a frame (1), wherein a conveyor belt (2) is movably connected to the frame (1), characterized in that: A hopper (13) is provided below the output end of the conveyor belt (2), and a side plate (16) is movably connected to each of the two sides of the hopper (13), and the side plate (16) is fixedly connected to the frame (1), and the outside of the hopper (13) is movably connected to a dredging piece.

2. A belt conveyor hopper blockage detection device according to claim 1, characterized in that: The inner wall of the frame (1) is horizontally rotatably connected to a plurality of equally spaced conveying rollers, the outer edges of the plurality of conveying rollers are jointly sleeved with a conveyor belt (2), and a conveying motor is horizontally fixed to the outside of the frame (1), the output end of the conveying motor is drivingly connected to the end of one of the conveying rollers.

3. A belt conveyor hopper blocking detection device according to claim 1, characterized in that: A guide groove (20) is vertically formed on the inner side of each of the two side plates (16), a spring (21) is vertically fixed in the guide groove (20), the end of the spring (21) is fixedly connected to a guide block (22), the guide block (22) is slidably connected in the guide groove (20) and is fixedly connected to the hopper (13), a pressure sensor (23) is provided below the guide block (22), and the pressure sensor (23) is fixed to the bottom wall of the guide groove (20).

4. A belt conveyor hopper blockage detection device according to claim 1, characterized in that: The dredging member comprises a top plate (4) which is lifted and connected above the hopper (13); a countersunk groove (18) is vertically provided on the bottom surface of the top plate (4); a plurality of equally spaced drive shafts (12) are rotatably connected in the countersunk groove (18); a gear (17) is fixedly sleeved on the outer edge of each drive shaft (12); the gears (17) are meshed with each other; the outsides of the plurality of drive shafts (12) are rotatably sleeved on a cover plate (19); the cover plate (19) is fixed in the countersunk groove (18) by bolts; a drive motor (3) is vertically fixed on the top surface of the top plate (4); the output end of the drive motor (3) is transmission-connected to one of the drive shafts (12); and a plurality of equally spaced crushing teeth (15) are fixedly connected to the outside of each drive shaft (12).

5. A belt conveyor hopper blocking detection device according to claim 4, characterized in that: A first support block (6) is fixed to each of the front and rear sides of the top plate (4); a first guide rod (7) is vertically fixed to the bottom surface of each of the first support blocks (6); the end of the first guide rod (7) is fixedly connected to a limit block (10); the outside of the first guide rod (7) is movably sleeved on a support plate (9); and the support plate (9) is fixedly connected to the hopper (13).

6. A belt conveyor hopper blocking detection device according to claim 5, characterized in that: The top surface of the support plate (9) vertically passes through the guide hole (8), the first guide rod (7) axially slides and penetrates into the guide hole (8), the side surface of the top plate (4) is fixedly connected to two second support blocks (5) that are mirror-symmetrical in front and back, and a second guide rod (14) is vertically fixed to the bottom surface of each second support block (5), and the end of each second guide rod (14) is respectively transmission-connected to a lifting motor (11), and the two lifting motors (11) are fixedly connected to the hopper (13).

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