Non-contact weighing and deviation warning device for belt conveyor

Abstract

The invention belongs to the technical field of transmission bands and particularly relates to a non-contact weighing and deviation warning device for a belt conveyor. The device comprises the following components: a sensing device used to obtain contour information data of a belt and a material on the belt in a direction vertical to the belt conveying direction, a data processing device used to obtain the cross section area of the material on the belt according to the contour information data, to obtain the mass of the material conveyed by the belt in the corresponding operation time with combination of the conveying speed and the operation time of the belt and the material density, to compare contours of the belt obtained in different periods, and to send an alarm signal when the difference between the contours of the belt obtained in different periods reaches a set value, and a synchronizer used to enable the sensing device to work with the belt at the same time. The non-contact weighing and deviation warning device is advantaged by few components and low cost, is not contacted with the belt in measurement, and is high in measurement precision and low in failure rate.

Description

technical field [0001] The invention belongs to the technical field of transmission belts, and in particular relates to non-contact weighing and deviation warning equipment for belt conveyors. Background technique [0002] At present, load cells are usually used for weighing in belt conveyors. In the prior art, the sensor is used to feed and weigh the belt conveyor. A number of cantilever load cells are installed under the entire belt conveyor, and each cantilever load cell jointly bears the weight of the entire belt and the materials on it. , and the obtained weighing signal is transmitted to the weighing control instrument, and the weighing control instrument processes the obtained signal to obtain the weight of the conveyed material in a certain period of time. The disadvantage of this weighing method is: when the belt conveyor is at a certain inclination angle, the pressure on the sensor at the top is relatively small, and the pressure on the sensor at the bottom is the...

AI Technical Summary

Problems solved by technology

The disadvantage of this weighing method is: when the belt conveyor is at a certain inclination angle, the pressure on the sensor at the top is relatively small, and the pressure on the sensor at the bottom is the highest, resulting in a larger load on the sensor. The degree of uneven force will eventually cause the problem of inaccurate weighing and measurement

In addition, in the weighing method in the prior art, the sensor is in direct contact with the belt. Due to factors such as frequent changes in the pressure of the belt during conveying and vibration, the sensor is prone to failure, and the failure rate is high.

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