Lubricating structure of self-aligning uniform-load thrust slide bearing

Abstract

The invention discloses a lubricating structure of a self-aligning uniform-load thrust slide bearing. The lubricating structure of the self-aligning uniform-load thrust slide bearing comprises a shell, wherein the shell is internally provided with a rotary shaft; the rotary shaft is provided with a radial tile; the radial tile is externally provided with a support seat; a lubricating oil channel is arranged between the support seat and the shell; the shell is provided with an external oil circulation connector which is communicated with the lubricating oil channel between the support seat and the shell. Because the external oil circulation connector is added on the shell, when the load is great, the external oil circulation connector is used for performing composite lubrication on the shell, so that a good lubrication effect is reached.

Description

technical field [0001] The invention relates to a lubricating structure of a thrust bearing, in particular to a lubricating structure of a sliding bearing in which radial pads are supported by spherical surfaces and thrust pads are elastically supported. Background technique [0002] With the requirement of civil engineering cost control, the type selection of mixed-flow small and medium-sized hydropower plants is increasingly choosing two-support structure hydro-turbine generator sets. The turbine runner of this two-point structure unit is directly installed on the motor shaft, occupying 1 / 2 to 2 / 3 of the plant area of ​​the traditional three-point or four-point structure unit, reducing the number of components of the unit, the overall structure is compact, and the weight of the unit is reduced. It can reach 1 / 3, and the efficiency of the whole machine has been improved. However, due to the increase of unit unit capacity, the axial thrust that needs to be carried by the mo...

AI Technical Summary

Problems solved by technology

However, in practice, due to the uneven level of the installation personnel of the unit, the centerline of the installed shaft and the centerline of the hole do not coincide, that is, the installation is uneven, resulting in adverse consequences such as accelerated wear of the radial pad.

At the same time, due to the non-elastic support of the thrust pads of traditional sliding bearings, if the shaft is installed unevenly, the axial load of the shaft system will be unevenly distributed on each thrust pad, resulting in increased wear of the thrust pads

And after long-term use, if its friction parts cannot be lubricated from time to time, its service life and use effect cannot be guaranteed.

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