Goods return prevention device of belt conveyor

Abstract

The utility model discloses a belt conveyor anti-return device which comprises a rotating rod which is horizontally and rotatably connected above a bottom belt and is perpendicular to the bottom belt, a rectangular baffle is fixed at the lower end of the rotating rod, the two ends of the baffle exceed the two ends of the belt, and the distance between the lower end of the baffle and the bottom belt is 1-3 cm. A distance sensor is installed on the side, close to the tail of the belt conveyor, of the baffle and located above the bottom belt, and the distance sensor is electrically connected with a motor of the belt through a controller. The baffle capable of rotating is arranged above the bottom belt, returned goods on the bottom belt drive the baffle to rotate, the distance sensor detects rotation of the baffle and automatically controls the motor of the belt to stop working, workers can handle the situation in time, and normal production is guaranteed.

Description

Technical Field

[0001] This utility model relates to a device for preventing backflow of goods in belt conveyors, belonging to the technical field of auxiliary equipment for coal mine conveying. Background Technology

[0002] In the existing production process of coal preparation plants, belt conveyors play a crucial role in transportation. A certain coal preparation plant currently has 21 belt conveyors, including 8 for raw coal, 3 for middlings coal, 3 for clean coal, 5 for gangue, and 2 for coal slime. During daily production, due to belt misalignment and other reasons, coal occasionally spills onto the bottom conveyor belt, resulting in a significant amount of returned coal and causing the following problems:

[0003] 1. When a belt conveyor experiences a return of goods, it can easily cause a lot of hygiene problems, take a long time to clean up, and waste production time, manpower, and resources.

[0004] 2. If the problem is not detected in time during the return process, it can easily cause belt misalignment, tearing, and other issues, seriously threatening equipment safety. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a device for preventing backflow of goods in a belt conveyor, so as to solve the technical problems existing in the prior art.

[0006] The technical solution adopted by this utility model is as follows: a belt conveyor anti-reverse device, including a rotating rod horizontally rotatably connected above the bottom belt and perpendicular to the bottom belt. A rectangular baffle is fixed at the lower end of the rotating rod. The two ends of the baffle extend beyond the two ends of the belt. The lower end of the baffle is 1-3 cm away from the bottom belt. A distance sensor is installed above the bottom belt on the side of the baffle near the tail of the belt conveyor. The distance sensor is electrically connected to the belt motor through a controller. The distance sensor is used to detect the distance between the baffle and the distance sensor. When the distance sensor detects that the distance between the baffle and the distance sensor is less than a set value, the distance sensor controls the belt motor to stop working through the controller.

[0007] Preferably, it further includes a mounting base, which includes a lower mounting base fixed to the frame and located on one side of the bottom belt. An upper mounting base is detachably connected to the upper end of the lower mounting base. The lower mounting base and the upper mounting base are respectively provided with semi-cylindrical holes that cooperate with the rotating rod on their opposite sides. The number of mounting bases is set to two and they are located on both sides of the bottom belt. The two ends of the rotating rod are respectively inserted into the two mounting bases and rotatably connected to the mounting bases.

[0008] Preferably, the lower mounting base and the upper mounting base are connected by bolts.

[0009] Preferably, the distance sensor is installed 80-90mm away from the baffle. When the distance sensor detects that the distance between the baffle and the distance sensor decreases by 10-15mm, the distance sensor controls the belt motor to stop working through the controller.

[0010] The beneficial effects of this utility model are as follows: Compared with the prior art, this utility model, by setting a rotatable baffle above the bottom belt, allows the baffle to rotate due to the return of goods on the bottom belt. The distance sensor detects the rotation of the baffle and automatically controls the belt motor to stop working, allowing personnel to handle the situation promptly, ensuring normal production, reducing the failure rate of the belt conveyor equipment, effectively protecting equipment safety, reducing maintenance time, reducing the labor intensity of employees, and creating favorable conditions for production management; it also reduces belt wear, extends belt service life, saves material costs, and ensures economic benefits; and it reduces the spillage of coal and coal slurry, reducing environmental pollution and beautifying the factory environment. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] Figure 2 This is a side view showing the relative positions of the baffle and the sensor.

[0013] The reference numerals in the accompanying drawings include: lower mounting base 1, upper mounting base 2, bolt 3, rotating rod 4, baffle 5, bottom belt 6, and distance sensor 7. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0015] Example 1:

[0016] Anti-return device for belt conveyors, such as Figure 1As shown, the system includes a mounting base, which comprises a lower mounting base 1 fixed to the frame on one side of the bottom belt 6. An upper mounting base 2 is connected to the upper end of the lower mounting base 1 via bolts 3. Semi-cylindrical holes are respectively provided on the opposite sides of the lower mounting base 1 and the upper mounting base 2. Two mounting bases are provided, located on opposite sides of the bottom belt 6. The two cylindrical holes are arranged opposite each other, and a rotating rod 4 is rotatably connected inside both cylindrical holes. The rotating rod 4 is horizontally arranged above and perpendicular to the bottom belt 6. A rectangular baffle 5 is fixed to the lower end of the rotating rod 4. The baffle 5 is a 6mm thick, 100mm wide iron plate. The length of the baffle 5 is... Based on the belt width of the conveyor belt, the two ends of the baffle 5 extend 1cm beyond the two ends of the belt. The lower end of the baffle 5 is 2cm above the bottom belt 6. A distance sensor 7 is installed on the side of the bottom belt 6 near the tail of the conveyor belt, above the baffle 5. The distance sensor 7 is electrically connected to the belt motor through the controller. The distance sensor 7 is used to detect the distance between the baffle 5 and the distance sensor 7. The distance between the distance sensor 7 and the baffle 5 is 80mm. When the distance sensor 7 detects that the distance between the baffle 5 and the distance sensor 7 decreases by 10mm, the distance sensor 7 controls the belt motor to stop working through the controller.

[0017] The return of goods on the bottom belt 6 causes the baffle 5 to rotate. When the distance sensor 7 detects that the distance between the baffle 5 and the distance sensor 7 is 70mm, the distance sensor 7 controls the belt motor to stop working through the controller, so that personnel can deal with it in time and ensure normal production.

[0018] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A return prevention device for a belt conveyor, characterized in that: The device includes a rotating rod that is horizontally rotatably connected above and perpendicular to the bottom belt. A rectangular baffle is fixed to the lower end of the rotating rod, with both ends of the baffle extending beyond the ends of the belt. The lower end of the baffle is 1-3 cm away from the bottom belt. A distance sensor is installed above the bottom belt on the side of the baffle near the tail of the belt conveyor. The distance sensor is electrically connected to the belt motor via a controller. The distance sensor is used to detect the distance between the baffle and the device. When the distance sensor detects that the distance between the baffle and the device is less than a set value, the distance sensor controls the belt motor to stop working via the controller.

2. The belt conveyor anti-backup device of claim 1, wherein: It also includes a mounting base, which includes a lower mounting base fixed to the frame and located on one side of the bottom belt. An upper mounting base is detachably connected to the upper end of the lower mounting base. The lower mounting base and the upper mounting base are respectively provided with semi-cylindrical holes that cooperate with the rotating rod on their opposite sides. The number of mounting bases is set to two and they are located on both sides of the bottom belt. The two ends of the rotating rod are respectively inserted into the two mounting bases and rotatably connected to the mounting bases.

3. The belt conveyor anti-backup device of claim 2, wherein: The lower mounting base and the upper mounting base are connected by bolts.

4. The belt conveyor anti-backup device of claim 1, wherein: The distance sensor is installed 80-90mm away from the baffle. When the distance sensor detects that the distance between the baffle and the distance sensor decreases by 10-15mm, the distance sensor controls the belt motor to stop working through the controller.

Images