Research on Dynamic Tension Control Theory for Heavy Scraper Conveyor

Abstract

To control the tension dynamic behaviors of heavy scraper conveyor self-adjusting system used for the chain initial tension of the scraper conveyor was considered. Hydraulic control system according to the principle was designed and the control theory of the system was established. the new fuzzy- PID controller used to the self-adjusting system was designed to limit the minimum tension point to some given scope. the example of simulation proved that the increase of power loss due to the higher tension and the chain escaping from sprocket wheel due to the lower tension can be avoided.