Structural Improvement And Optimum Design Of Belt Conveyor Roller

Nowadays, belt conveyor is one of the most important transportation equipment. It is widely used in hydropower, coal and other fields. And roller is the most important load bearing parts of the belt conveyor. There are many rollers on a belt conveyor, and they are supported the most load of the belt conveyor. Therefore, roller is particularly important in belt conveyor.At first, the structure, working principle, processing method and selection methods of the main parameters of roller are briefly described in this paper.Second, in order to ensure accuracy of the calculation results, the finite element analysis software ANSYS’modeling capabilities is used to build model. After applying constraints and loads, the finite element statics analysis are carried out. Then by observing and making the analysis on the stress distribution and deformation of roller, afterwards the weakest link is found out, in order to provide the theoretical basis for the further improvement of roller.Third, after calculating and analyzing of the bearing model for roller by proper simplification, the factors which affect the maximum stress and maximum deformation of roller skin are pointed out. Then change the factors to modeling in the ANSYS software, and the finite element analysis of roller is carried out. After these, improved results with earlier results are analyzed in order to verify the correctness of the conclusions and the final improvement program is put forward.At last, in the ANSYS software, with the volume of roller as objective, thickness of roller skin and bearing as the design variables and the strength and stiffness of roller skin and bearing as the state variable, the structure optimization is designed, for getting the optimal design scheme. The optimization results show that the volume of roller decreased by6.2%and a large amount waste of steel and energy are reduced while ensuring the strength and stiffness of roller skin and bearing.