Automatic deviation rectifying system and method for conveying belt

Abstract

The invention discloses an automatic deviation rectifying system and method for a conveying belt. The deviation of the conveying belt can be accurately detected, the conveying belt is wound around a carrier roller, the automatic deviation rectifying system comprises a deviation monitoring device, an automatic deviation rectifying device and a positioning system, the deviation monitoring device is in communication connection with the automatic deviation rectifying device, the deviation monitoring device comprises a light curtain assembly and a processor, the light curtain assembly is adjacent to the side end of the conveying belt, and the light curtain assembly and the positioning system are electrically connected with the processor. The deviation rectifying method comprises the following steps that data is subjected to initializing, a database is established, and an optical signal irradiated on the conveying belt by the light curtain assembly is acquired in real time, the local position of the light curtain assembly is positioned in real time through the positioning system, deviation information is processed and analyzed, left deviation data or right deviation data of the conveying belt are obtained, whether the left deviation data or the right deviation data exceed a preset deviation threshold value or not is judged, and if yes, and the automatic deviation rectifying device rectifies deviation of the deviated conveying belt according to the deviation data.

Description

technical field [0001] The invention relates to the technical field of conveyor belts, in particular to a conveyor belt automatic deviation correction system and a deviation correction method. Background technique [0002] Belt conveyors are widely used in food, metallurgy, mines, ports, steel plants and other fields due to their advantages of low cost, wide adaptability and strong conveying capacity. In the process of using belt conveyor to transport materials, the deviation of the conveyor belt often occurs. The reason for the deviation of the belt is that the resultant force of the external force on the conveyor belt in the width direction of the conveyor belt is uneven or the tensile stress perpendicular to the width of the belt is uneven. Uniform, so that the roller or pulley produces a component force against the belt in the opposite direction, which causes the conveyor belt to shift to one side. The deviation of the conveyor belt can easily lead to problems such as s...

AI Technical Summary

Problems solved by technology

In the process of using belt conveyor to transport materials, the deviation of the conveyor belt often occurs. The reason for the deviation of the belt is that the resultant force of the external force on the conveyor belt in the width direction of the conveyor belt is uneven or the tensile stress perpendicular to the width of the belt is uneven. Uniform, so that the roller or pulley produces a component force against the belt in the opposite direction, which causes the conveyor belt to shift to one side

The deviation of the conveyor belt can easily lead to problems such as scattering of conveyed materials, tearing and damage of the conveyor belt, etc.

[0003] A variety of automatic deviation correction methods are provided in the prior art to solve the above-mentioned conveyor belt deviation problem, such as mechanical transmission deviation correction, hydraulic automatic deviation correction, pneumatic automatic deviation correction, and electro-hydraulic combination correction device, but the above-mentioned automatic deviation correction methods exist Many defects: the mechanical transmission deviation correction work is unstable, prone to left and right swings, and the conveyor belt has a large running resistance, and it is easy to derail when the deviation is serious; hydraulic automatic deviation correction is composed of inspection drive wheels, oil cylinders, oil pumps, self-aligning rollers and The frame is composed of large volume, takes up a lot of space, rubs against the edge of the conveyor belt, and is easy to damage the conveyor belt, and the hydraulic transmission structure is complicated; the pneumatic automatic deviation correction consists of two rollers, two fine-tuning cylinders, two deviation sensors, two It is composed of a solenoid valve, a fixing piece and a main controller, and the installation and debugging are relatively complicated, and the operation and maintenance are difficult; the electro-hydraulic combined correction device consists of a direction sensor, an electric control box, a self-aligning roller, a hydraulic device and an electro-hydraulic push rod. It is suitable for large belt conveyors with high precision operation, but under special working conditions, the environment is harsh and the sensor accuracy is easily affected

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