Authors: A.V. Grigoryev, A.Yu. Zakharov, A.G. Zakharova, A.A. Shaulev, A.N. Khomenko, G.M. Lebedev, Semykina

Title of the article: On the use of induction power supply based on a linear generator for a transmitter of a device for detecting longitudinal breaks in a conveyor belt

Year: 2026, Issue: 1, Pages: 27-47

Branch of knowledge: 2.8.8 Mining machines, geotechnology (engineering)

Index UDK: 622.271.4:622.684

DOI: 10.26730/2618-7434-2026-1-27-47

Abstract: Longitudinal tears in conveyor belts in modern high-performance mines and open-pit mines lead to critical economic costs caused by equipment downtime and expensive repairs. Currently, there are many known devices for detecting longitudinal tears in conveyor belts (DDLT). The most promising approach to solving the problem of longitudinal tear detection is the use of a method of energy transfer through the cross-section of the conveyor belt by means of electromagnetic fields. The disadvantages of this solution include difficulties in reading information by the receiver due to a large number of interferences in the loop built into the conveyor belt in mine conditions. To overcome these problems, the departments of mining machines and complexes and electric drive and automation at KuzSTU developed a device in which transmitters are located in the conveyor belt and connected by a wire laid perpendicular to the direction of belt movement. The receivers are located on the conveyor frame. If the integrity of the connecting (control) wire is maintained, a permanent magnet installed on the conveyor frame activates the corresponding sensor, and the transmitter sends a signal to the receiver, which is part of the logic block that analyzes the incoming information. When a longitudinal break occurs, the tape is damaged, resulting in a breach in the integrity of the conductive elements and the transmission of signals from the transmitter is interrupted. The logic unit registers the absence of the expected signal and initiates an emergency stop procedure for the conveyor. One promising design for conveyor belt break sensors is a circuit that uses an induction power supply for the transmitter based on a linear generator. The aim of this work is to investigate the possibility of implementing a scheme for the inductive power supply of a conveyor belt DDLT transmitter based on a linear generator in order to minimize the influence of electromagnetic interference, ensure high sensitivity and reliability of the system, low probability of false triggering, low cost, and low power consumption.

Key words: belt conveyors conveyor belts longitudinal tear longitudinal breakage detection device linear generator pulse transmitter pulse receiver

Receiving date: 15.10.2025

Approval date: 24.02.2026

Publication date: 09.04.2026

CITE DOWNLOAD