Load Analysis of Transmission Drives with Intermediate Rolling Bodies

Transmission drives with intermediate rolling bodies are a relatively new type of mechanism. Their advantages over conventional gearing are small dimensions and high load capacity due to the fact that power is transmitted simultaneously through many parallel power flows equal to the number of rolling bodies. It is important to determine the forces and moments acting on the transmission links. Based on the equations of plane-parallel motion of the roller, the author proposes a model of force interaction of the rolling bodies, cams and the separator. The equations for calculating normal reactions in the transmission depending on the angle of rotation of the drive shaft are given. Geometric criterion of jamming of the rolling bodies at the tops of the bearing tracks formed by face cylindrical cams is obtained. The results of the load analysis can be used for strength analysis and the evaluation of the transmission durability.

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