Belt conveyor protection device

Abstract

The utility model provides a belt conveyor protection device which comprises a support, a conveying belt is arranged on the support, a driving roller is arranged at one end of the conveying belt in the length direction, a driven roller is arranged at the other end of the conveying belt in the length direction, the driving roller is connected with a motor used for driving the driving roller to rotate, and the two sides of the conveying belt are each provided with a rotating shaft. A plurality of deflector rods are arranged on the rotating shaft in the length direction of the rotating shaft, the top ends of the deflector rods abut against the upper side edge of the transmission belt, and one end of the rotating shaft is connected with an angle sensor used for detecting rotation of the rotating shaft. The rotating shafts are arranged on the two sides of the conveying belt, the driving levers are arranged on the rotating shafts, when the conveying belt deviates, external force can be applied to the driving levers to enable the driving levers and the rotating shafts to rotate, the rotating angles of the rotating shafts are detected through the angle sensor, the deviation amount of the conveying belt is judged, and when the deviation amount exceeds a set range, the deviation amount is controlled through the controller to stop running. And material falling and conveying belt damage caused by deviation of the conveying belt are effectively prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of conveyor belts and relates to a protection device for a belt conveyor. Background Art

[0002] At present, most ores in metallurgical enterprises are transported by belt conveyors. After the belt conveyor works for a period of time, due to the repeated action of force, when the conveyor belt conveys materials, the materials are not necessarily concentrated in the middle of the conveyor belt. When the materials are distributed on one side of the edge of the conveyor belt, the tensions on both sides of the conveyor belt will be different, causing the conveyor belt to deviate towards the side with a larger tension, resulting in a deviation phenomenon. If the deviation amount is too large, the materials will fall off the conveyor belt, affecting the normal transportation of the materials. If the deviation amount of the conveyor belt is too large, it may also cause the conveyor belt to fall off the belt conveyor. Content of the Utility Model

[0003] The purpose of the utility model is to provide a protection device for a belt conveyor to solve the problem that the conveyor belt deviates and the materials fall off the conveyor belt in the background art.

[0004] To this end, the utility model adopts the following technical solutions:

[0005] A protection device for a belt conveyor includes a bracket. A conveyor belt is provided on the bracket. One end of the conveyor belt in the length direction is provided with a driving roller, and the other end is provided with a driven roller. The driving roller is connected with a motor for driving the driving roller to rotate. One rotating shaft is provided on each side of the conveyor belt in the length direction. The rotating shafts are arranged on the bracket and along the length direction of the conveyor belt. A plurality of dial rods are arranged on the rotating shafts along the length direction of the rotating shafts. The dial rods abut against the upper side edge of the conveyor belt. One end of the rotating shaft is provided with an angle sensor for detecting the rotation angle of the rotating shaft. The angle sensor is connected with a controller, and the controller is connected with the motor.

[0006] Further, a pull rod is fixed at one end of the rotating shaft in the length direction. The pull rod is connected with a spring, and the end of the spring away from the pull rod is connected with the bracket.

[0007] Further, the pull rod and the dial rod are arranged in parallel with each other.

[0008] Further, the rotating shaft is arranged horizontally.

[0009] Further, the dial rod and the rotating shaft are arranged perpendicular to each other.

[0010] Further, the controller is connected with an alarm lamp.

[0011] The beneficial effects of the present utility model are as follows: Rotating shafts are arranged on both sides of the conveyor belt, and lever rods are arranged on the rotating shafts. When the conveyor belt deviates, an external force can be applied to the lever rods to make the lever rods and the rotating shafts rotate. The rotation angle of the rotating shaft is detected by an angle sensor to judge the deviation amount of the conveyor belt. When the deviation amount exceeds the set range, the controller controls the deviation amount to stop running, effectively preventing the material from falling and the conveyor belt from being damaged due to the deviation of the conveyor belt; the structure is simple and the usage method is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is the main structural schematic view of the present utility model;

[0013] Figure 2 is the top structural schematic view of the present utility model;

[0014] Figure 3 is Figure 2 the partial enlarged view of part A in

[0015] Figure 4 the control schematic diagram of the present utility model;

[0016] In the figure, 1 - support, 2 - conveyor belt, 3 - driving roller, 4 - driven roller, 5 - motor, 6 - rotating shaft, 7 - lever rod, 8 - pull rod, 9 - spring, 10 - angle sensor, 11 - controller, 12 - alarm lamp. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The following will make a detailed description of the present invention in combination with the amplitude:

[0018] As Figures 1-4As shown in the figure, a belt conveyor protection device includes a bracket 1. A conveyor belt 2 is provided on the bracket 1. At one end in the length direction of the conveyor belt 2, there is a driving roller 3, and at the other end, there is a driven roller 4. The driving roller 4 is connected to a motor 5 for driving the driving roller 3 to rotate. On both sides in the length direction of the conveyor belt 2, there is a horizontally arranged rotating shaft 6 each. The rotating shaft 6 is arranged on the bracket 1 and along the length direction of the conveyor belt 2. Along the length direction of the rotating shaft 6, there are a plurality of lever rods 7 perpendicular to the rotating shaft 6. The lever rods 7 can drive the rotating shaft to rotate. The lever rods 7 abut against the upper side edge of the conveyor belt 2. When the conveyor belt 2 is offset, an external force can be applied to the lever rods 7, causing the lever rods 7 to rotate and driving the rotating shaft 6 to rotate through the lever rods 7. In order to make the lever rods 7 always abut against the edge of the conveyor belt 2, at one end in the length direction of the rotating shaft 6, a pull rod 8 parallel to the lever rods 7 is fixed. The pull rod 8 is connected to a spring 9. The end of the spring 9 away from the pull rod 8 is connected to the bracket 1. By applying a pulling force to the pull rod 8 through the spring 9, the rotating shaft 6 and the lever rods 7 are driven to rotate towards one side of the conveyor belt 2, so that the lever rods 7 always abut against the edge of the conveyor belt 2. At one end of the rotating shaft 6, there is an angle sensor 10 for detecting the rotation angle of the rotating shaft 6. The angle sensor 10 is connected to a controller 11. The controller 11 uses an existing conventional PLC. The controller 11 is connected to the motor 5. When the rotation angle of the rotating shaft 6 is greater than the set value, the controller 11 can control the motor 5 to stop running. Wait for the operator to offset the conveyor belt 2 and continue to run after the processing is completed.

[0019] In addition, the controller 11 is also connected to an alarm lamp 12. When the motor 5 stops, the operator can be prompted to handle it immediately through the alarm lamp 12.

[0020] The usage method of the present utility model is as follows:

[0021] When the conveyor belt 2 is running normally without offset, the lever rods 7 on both sides of the conveyor belt 2 are in a vertical state. When the conveyor belt 2 is offset to one side, the conveyor belt 2 applies an external force to the lever rod 7 on the offset side, causing the lever rod 7 to rotate and driving the rotating shaft 6 to rotate. The angle sensor 10 will send a signal to the controller 11. When the rotation angle is greater than the set value, it means that the offset amount of the conveyor belt 2 exceeds the set range. The controller 11 controls the motor 11 to stop, so that the conveyor belt 2 stops running. At the same time, the controller 11 controls the alarm lamp 12 to flash, prompting the operator to handle it. After the handling is completed, continue to run.

[0022] This device can stop the belt conveyor in time when the belt conveyor is offset, effectively preventing materials from falling from the conveyor belt 2, and at the same time preventing the conveyor belt 2 from falling off due to excessive offset amount of the conveyor belt 2.

Claims

1. A belt conveyor protection device, characterized in that: The invention comprises a support (1), wherein a conveyor belt (2) is provided on the support (1), a driving roller (3) is provided at one end of the conveyor belt (2) in the length direction, and a driven roller (4) is provided at the other end, the driving roller (3) is connected to a motor (5) for driving the driving roller (3) to rotate, a rotating shaft (6) is provided on each side of the conveyor belt (2) in the length direction, the rotating shaft (6) is arranged on the support (1) and along the length direction of the conveyor belt (2), a plurality of levers (7) are provided on the rotating shaft (6) along the length direction of the rotating shaft (6), the levers (7) are abutted against the upper edge of the conveyor belt (2), an angle sensor (10) for detecting the rotation of the rotating shaft (6) is provided at one end of the rotating shaft (6), the angle sensor (10) is connected to a controller (11), and the controller (11) is connected to the motor (5).

2. A belt conveyor protection device according to claim 1, characterized in that: A pull rod (8) is fixed to one end of the rotating shaft (6) in the length direction, the pull rod (8) is connected to a spring (9), and one end of the spring (9) away from the pull rod (8) is connected to the bracket (1).

3. A belt conveyor protection device according to claim 2, characterized in that: The pull rod (8) and the shift rod (7) are arranged parallel to each other.

4. A belt conveyor protection device according to claim 1, characterized in that: The rotating shaft (6) is arranged horizontally.

5. A belt conveyor protection device according to claim 1, characterized in that: The shifting rod (7) and the rotating shaft (6) are arranged perpendicular to each other.

6. A belt conveyor protection device according to claim 1, characterized in that: The controller (11) is connected to a warning light (12).

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