Abstract
In this work, the vibration of the pump rotor supports from centrifugal force is studied. For this purpose, it is proposed to install a flooring made of vibration-insulating material under the pump casing. When fitting the outer rings of the rolling bearing into the pump casing through an elastic bushing, it is possible to increase the compliance of the supports while maintaining sufficient strength and wear resistance of the surfaces. It is proposed to use such a complex support of the pump rotor, consisting of a rolling bearing and a polyurethane bushing, which allows, in case of rotor imbalance caused by the radial displacement of the axes of the pump and the engine, to reduce vibrations at the main oscillation frequency by several times. On the casing supports, when using vibration-insulating material as a flooring, it is significantly reduced by 5.87 times. And the use of elastic elements made of elastomer as a flooring for the pump casing and the installation of a damper made of a polyurethane bushing under the outer ring of the rolling bearing reduce vibration loads perceived by the foundation and rolling bearings by tens of times