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RESEARCH OF THE TENSILE PROPERTIES OF CONVEYOR BELTS DEPENDING ON THE DIRECTION OF SAMPLING
Abstract
The tensile properties of conveyor belts significantly affect their use in practice. Research is focused on the determination of the influence of sampling direction on the tensile strength and the elongation of 3 types of fabric conveyor belts. The carcass material determines the tensile properties of the conveyor belt. The carcass of a fabric conveyor belt is formed by several layers of textile plies. The textile plies are created by crossing the system of warp and weft fibres. The warp represents a set of fibres in the longitudinal direction and the weft of fibres in the transverse direction. Such textile structure is directly responsible for the tensile properties of the belt itself. Even a combination of different warp and weft textiles is used to achieve better properties. The usage of polyester (E) fibres in the warp and polyamide (P) fibres in the transverse weft was applied in the investigated EP type of belts. This construction is characterized by good resistance to dynamic fatigue and it protects the belt from the formation and propagation of breakdowns. The aim of the work is the experimental research of conveyor belts of different tensile strengths used in mining.
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