Automatic tensioning system of belt conveyor and applications thereof

Abstract

The invention discloses an automatic tensioning system of a belt conveyor and applications thereof. The automatic tensioning system comprises a tensioning device, a speed collecting device, a tension sensor and an electronic control system, wherein the tensioning device and the speed collecting device are installed on the tension roller of the belt conveyor, the tension sensor is installed under the driving roller support of the belt conveyor, and the electronic control system takes a PLC (Programmable Logic Controller) controller as a core. Through the proportional relation existing between current and load, the automatic tensioning system identifies the loading capacity on a conveying belt and detects the traction needed by the system converted by signals in the PLC. Then, the traction is compared with the tension detected by the tension sensor, and the compared result controls a trailer wagon to go forward or draw back. The tension position of the conveying belt is in a dynamic control process and provides the necessary tension of normal running for the conveyor to prevent slipping, so that the long-distance timely intelligent dynamic tensioning for the conveying belt is realized.

Description

Technical field [0001] The present invention relates to belt conveyors. Background technique [0002] At present, the belt conveyor is one of the most important transportation tools for transporting bulk materials because it can realize continuous loading and unloading of materials and has long transportation distance, large transportation capacity, low power consumption, relatively low investment costs and easy maintenance. and other characteristics, so it is widely used in material transportation in ports, docks, metallurgy, thermal power plants, open-pit mines and coal mines. Belt conveyor is a modern large-scale transportation equipment with high strength, large transportation volume and high power, which plays an important role in the national economy. [0003] Belt conveyors are equipped with tensioning devices. The existing tensioning device consists of a frame, a tensioning drum, a traction cylinder, a tensioning winch and a pulley block. The existing shortcomings...

AI Technical Summary

Problems solved by technology

The disadvantages are: the equipment is large in size, and limited by the structure of the traction cylinder, it cannot have a large telescopic length; due to the tension of the wound wire rope and the limit of the rope capacity of the drum, it is impossible to achieve rapid tensioning in a long distance and in a wide range; tensioning through the pulley block The tensioning speed is slow, and the dynamic adjustment performance is poor

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