Research and Development on Soft Start System with Scraper Conveyor Hydraulic Coupling
ZHANG Yan-lu
WANG Teng
SONG De-jun
LIU Wei
ZHANG Geng-yun
LI Wen-jun
Abstract：According to the difficult start,unbalanced multi motor driving power and other problems existed in a driving system of the scraper conveyor,a soft start system with a valve controlled filling type hydraulic coupling was researched and developed.The paper intro-duced the composition,working principle and key technology of the soft start system with the valve controlled filling type hydraulic cou-pling.A flow field simulation technology was applied to the design of the impeller chamber mode,structure and strength and a high strength copper alloy impeller was successfully researched and developed.Based on a magnetic suspension technology,a floating support structure of the pump wheel component and a worm wheel support structure were designed and a reliability of the matching electric motor and the speed reducers bearing was improved.A scale inhibiter was set up in a water supply circulated loop to eliminate a coupling operation fault caused by the water scale and to improve the reliability of the coupling operation.With a design on a supply water sealing,an overfilling phenome-non occurred in the operation process of the coupling was completely eliminated.A segmented vertical type combined control valve and wa-ter supply system could be applied to realize a selection of an open or close operation for the coupling.The reliable performances of the cou-pling were approved by the lab experiment and industrial experiment.
Keywords：scraper conveyorvalve controlled filling type hydraulic couplingcopper alloy impellerscale inhibiterfloating ring seal
Publication Date：2014-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：7( 61-66,82 )