Dynamic Analysis of Machine Aggregates with Compound Belt Transmissions

This article examines the dynamic characteristics of the PD-type feeding system in the 4DP-130 cotton cleaning machine when utilizing a composite belt drive. The study focuses on analyzing angular velocity oscillations and technological resistances by developing and solving a mathematical model using Mathcad software. Key parameters investigated include belt tension force (Mc), deformation of the composite pulley's elastic element (M0), stiffness (c), and dissipation (b). The findings indicate that the structural features of the composite belt drive contribute to partially absorbing dynamic loads, thereby reducing stresses on the shafts within the drive system. Additionally, an increase in the shafts' moments of inertia was found to prolong the machine assembly's startup time. Based on these results, the study provides recommendations on the interrelation of parameters such as Mc=100 Nm, M0=4 Nm, c=20 Nm/rad, and b=8 Nms/rad, and their impact on the machine's dynamic performance.

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