Fault early warning method and fault early warning device for belt conveyor

• Main Authors: YU HAILONG, JU CHEN, GUO AIJUN, YUAN LONGJIANG
• Format: Patent
• Language: Chinese; English
• Published: 13.01.2023
• Subjects: CONVEYING; HANDLING THIN OR FILAMENTARY MATERIAL; MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC ORINFRASONIC WAVES; MEASURING; MEASURING QUANTITY OF HEAT; MEASURING TEMPERATURE; PACKING; PERFORMING OPERATIONS; PHYSICS; PNEUMATIC TUBE CONVEYORS; SHOP CONVEYOR SYSTEMS; STORING; TESTING; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR; TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING ORTIPPING; TRANSPORTING

The invention provides a fault early warning method and a fault early warning device for a belt conveyor. The fault early warning method comprises the following steps: receiving an impact signal, a vibration signal and a temperature signal of a transmission device in a preset time period; respectively carrying out time domain analysis on the impact signal and the vibration signal to obtain a time domain characteristic parameter, respectively carrying out frequency domain analysis on the impact signal and the vibration signal to obtain a frequency domain characteristic parameter, and respectively carrying out axis track analysis on the impact signal and the vibration signal to obtain an axis characteristic parameter; the time-domain characteristic parameters, the frequency-domain characteristic parameters, the axis characteristic parameters and the temperature values of the temperature signals form a fault symptom discourse domain, and fault early warning is performed on the transmission device at least accord