Non-contact belt conveyor weighing and deviation warning device

Abstract

The invention belongs to the technical field of conveyor belts and particularly relates to a non-contact type belt conveying weighing and deviating warning device. The device comprises a sensing device, a data processing device and a synchronizer, wherein the sensing device is used for obtaining outline information data of a belt and materials on the belt perpendicular to the conveying direction of the belt, the data processing device is used for obtaining the area of the cross section of the materials on the belt according to the outline information data, the data processing device is combined with conveying speed of the belt, running time and material density to obtain material mass conveyed within the corresponding running time of the belt, the data processing device can compare shape outlines of the belt obtained during different periods, and when deviation values of the belt shape outlines obtained during the different periods reach set values, the data processing device sends out a warning signal; and the synchronizer is used for enabling the sensing device and the belt to work synchronously. The device has few components and is low in cost. Moreover, in the measuring process, the device does not make contact with the belt, measuring precision is high, and the fault rate is low.

Description

technical field [0001] The invention belongs to the technical field of transmission belts, and in particular relates to a non-contact belt conveying weighing and deviation warning device. 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 high...

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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