The Method And Experimental Research On Dynamic Weighing Of Belt Conveyor

There is a lot of work to improve the accurate weighing of solid material in home and abroad.The research mainly concentrated on analysis of bearing device structure, calibration method andsensor precision. The research of tention change was little. When there are much uneven sizematerial on the belt, uneven belt can cause non-uniform stress and tension change in the belt. It willchange weighting accuracy. Now, tension can not be measured, so the paper establis a relationshipbetween belt hanging and material weight to fix the weighing error of tension chang.On the basis of analysising the viscoelastic characteristics of the conveyor belt, we analysisthe forces between the two adjacent conveyor roller. And we give the mechanical model of the beltconveyo, estabish the viscoelasticity equation between the conveyor and material weight underindentation resistane, hanging curve equation of conveyor belt and tension equation of conveyorbelt. We get the mathematical model of tension equation of conveyor belt-hanging curve equationof conveyor belt-material weight. Large number of test was completed on the distributed loads andconcentrated loads, and large amounts of data was gotten. At last, we analyzed the results of the testand calibration using the Finite Element Method. These studies will improve the accuracy of theweighing.