A precision method of assembling transmissions

Abstract

The stress state is considered for flexible transmission plates used in gas-pumping apparatus (GPA). Safe operation is provided by centering the shafts and making allowance for their displacement in operation. Comparative tests are reported on these transmission elements from various producers. Recommendations are made on making, installing, and commissioning transmissions for supporting GPA.Gas pumping apparatus (GPA) makes extensive use of transmission elements containing flexible plates.Here we consider the state of stress in flexible plates on the basis of a rod model [1]. As the rods, we have taken the parts of the plates between the fingers, with the forces acting on the plates one on another and the deformation of the fingers neglected, with the deviations in plate form considered as forecastable, and the rod lengths calculated in tension and compression as equal to the distances between fingers, while on calculation in bending the values are equal to the least distance between the pressure washers.The distribution of the load P in the bolt-plate contact is taken as reflecting the mode of deformation, so the bending stress is defined by the following [1]: σ b = 1.35P/(Hd),