The article deals with analysis of force conditions in a belt of classic belt conveyor by FEA. Analysis determines rolls contact forces acting on the belt at idler station. Knowledge of physical, mainly mechanical, properties of conveyor belt rubbers belongs to important preconditions of trouble-free operation of conveyor belt transportation. Mechanical nature of rubber materials used in belt transportation have among others an immediate effect on the friction between rubber layers of a conveyor belt and a driving drum and/or on the total power consumption. This knowledge is relevant not only in the case of new belts where it helps their optimal selection with respect to the nature and quantity of transported material but also during monitoring the belt changes caused by operation [1]. Harrison [2] dealt with modeling of tension force in conveyor belt which is around driving drum. Hatala et al. [3] dealt with modeling of tension conditions in the sample of conveyor belt and used the finite element method. Mazurkiewicz [4] used the finite element method for analysis of conveyor belt jointing by shackles. Application of technology of computer-aided design to large-scale long belt conveyor is presented in [5]. Nuttall et al. [6] presented a simplified approach to modelling the rolling contact phenomena that occur at the surface of a wheel driven rubber belt. The main aim of this approach is to determine the rolling friction due to hysteresis and the relationship between traction and slip in wheel driven belt conveyors. The resulting model is an expansion of existing linear viscoelastic model consisting of three parameter Maxwell model combined with a Winkler foundation that is used to determine the rolling friction due to hysteresis in a conventional conveyor with a flat belt. Molnar dealt with optimally suspended pipe conveyor in [7]. He also analyzed the design experiences of pipe conveyors from various aspects in [8]. Michalik et. al. [9] deals with using of new Computer Integrated System for the automatized measuring of strength in the conveyer belt of pipe conveyor.
展开▼
