Zyablikov

Elastic pipe couplings are used in low power drives because their application is limited due to loss of section stability under loading of comparatively low rotational moment. This results in significant performance degradation of properties of such couplings. In order to improve section stability and, therefore, to increase the transfer moment, it was proposed to fill the pipe’s internal space (between shafts to be connected) with narrow metallic rings which were mounted with some tension. Changing the number and height of rings could lead to changes of the coupling properties. A coupling with an elastic metallic assembly mounted in the pipe’s hole was developed for operation under high dynamic loads. A patent for invention of the Russian Federation was received for this coupling.

Heavy rotating shafts with radial bearings require an additional axial support. Axial support in some mechanisms is designed poorly. This article describes a developed design of an axial support and results of its structural analysis. This design is patented in the Russian Federation. The proposed support is designed for installation on the free end of the shaft and does not interfere with the shaft’s radial float and rotation of its axis. The admissible lateral displacement of the shaft in the axial installation is 1-2 mm, and the maximum rotation of the shaft axis is 30 arc minutes. The support is suitable for the shaft of an oil turbo pump unit. This shaft is mounted with bearings; its axis has radial and angular displacements during the operation.