THRUST SLIDING BEARING (OPTIONS) Russian patent published in 2021 - IPC F16C17/06 F16C32/06 

FIELD: mechanical engineering.

SUBSTANCE: invention relates to the field of mechanical engineering, namely to thrust sliding bearings with segments, each of which is equipped with beveled sections, and can be used in machine designs with a variable direction of the shaft rotation. In a thrust sliding bearing containing a housing with lubrication supply channels, a thrust ring with lubrication supply channels to the working surface divided by radial grooves into equal segments, each of which is provided with two oppositely directed sections beveled at an angle to the flat sliding surface, two hydrostatic pockets are made on the back side of each segment, each connected by a separate hole in the thrust ring with one of the two beveled sections of the segment. In accordance with the variant of the technical solution, two hydrostatic pockets are made on the thrust surface of the housing opposite each segment of the thrust ring. According to other variants, a reversible oil scraper is installed in each radial groove, and a hole is provided in the scraper body connecting the oil supply channel in the thrust ring with a cavity in the upper part of the scraper connected to the entrance to the working surface of each segment. The back side of the thrust ring can be made spherical and mated with the surface of the bearing housing along its spherical thrust surface, and the area of the spherical thrust surface of the housing can be greater or less than the area of the back spherical surface of the thrust ring, depending on the location of the hydrostatic pockets. The thrust ring can be made of steel or bronze with a working surface covered with a layer of babbit or polyesterephyrketone (PEEK), or covered with a layer of silver or polyesterephyrketone (PEEK), respectively, or completely made of polyesterephyrketone.

EFFECT: increase in the damping properties of a thrust bearing, an increase in its bearing capacity and the ability to equalize axial loads in the event of their uneven distribution over the bearing surface of the bearing due to the angular displacement of the shaft neck axis relative to the bearing axis.

14 cl, 30 dwg