Modification of Joints in Polymer Timing Belts

Abstract

Teeth deformation measurements in the connection area indicate that each method of welded joint improvement, decreases deformation and thus improves power transfer capacity of joined belts. In the selected study it means deformation of the connection zone. The difficulties with preparation of strenghtening element significantly reduced selection of solutions. The best results were obtained within belts with connected cord ends and in solutions with restricted load-carrying layer. Depending on the structural solution applied in the cord ends connection, the force transfer capacity is from several to several dozen percent higher. As indicated by the proposed equations, the engagement conditions between belt and pulley can be improved by using pulleys with maximum possible number of teeth, in standard version or even with increased lateral gap.