Statistical approach for evaluation of pipe conveyor's belt contact forces on guide idlers

The paper presents verification of the effect of emitted tension force of conveyor belt to the size of contact forces which are induced by the closed conveyor belt on the guide idlers in the hexagonal idler housing of pipe conveyor. The conveyor belt is an object with action of tension force and at the same time it takes the initiative in the contact force formation. The concept of the test equipment at the Technical University of Košice is designed so that it represents the section of pipe conveyor in which the conveyor belt is transformed to the pipe form. The measured data are presented by usual descriptive statistic characteristics and compared by nonparametric statistical methods. For comparision of position and tension force Nonparametric Friedman test and Shapiro-Wilk Normality Test were used.