Flexible thrust bearing

Abstract

The invention discloses a flexible thrust bearing. The flexible thrust bearing consists of a bearing bush body and a bearing bush sleeve; an outer circle of the bearing bush body is an outer sphericalsurface; an inner hole of the bearing bush sleeve is an inner spherical surface; a matched surface of the bearing bush sleeve with the bearing bush body is a circular spherical surface to form an universal joint; when a gap between a working surface of the bearing bush body and a shaft shoulder surface of a rotor is nonuniform caused by assembly errors, sudden stress of the rotor and deformationof the rotor caused by long-time operation after assembly, the bearing bush body can be rotationally adjusted at any time in the bearing bush sleeve until the gap is uniform under the pressure of an oil pressure entering between the rotor and the bearing bush body through a high-pressure oil hole; in order to conveniently install a shaft, the bearing bush body and the bearing bush sleeve are bothdesigned as split structures, and are connected through screws and pins; and the bearing bush body can be randomly rotated in the bearing bush sleeve under the pressure of the oil film to meet the deformation and the bending of the rotor in the operating process to always guarantee equal oil film gap between the thrust working surface and the rotor shaft shoulder, so that load points on the bearing working surface are uniformly distributed, and the smooth operation of the rotor is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of mechanical sliding bearings, in particular to a flexible thrust bearing, which can be adjusted in real time according to the installation error of the rotor and the degree of inclination or micro-deformation of the rotor during use, so that the load is evenly distributed on the thrust pad. On the surface, it effectively guarantees the stable operation of the rotor. Background technique [0002] The main function of sliding bearings in mechanical transmission is to support the load of the rotor (transmission) and ensure the stable operation of the rotor. The structure and precision of the bearing are the key factors for the stable operation of the rotor. At present, there are two main forms of thrust bearings: oblique-plane thrust bearings (such as figure 1 shown) and tilting pad thrust bearings (such as figure 2 shown). The oblique-plane thrust bearing directly fixes the bearing on the box seat during...

AI Technical Summary

Problems solved by technology

The disadvantage of the tilting pad thrust bearing is that each pad only adjusts its own tilt as the working conditions change, and the overall positioning points of all the pads are on the same plane. As the rotor bends and tilts, the working surface of each thrust pad is parallel to the rotor shoulder under oil pressure, but the oil film clearance between each thrust pad and the shaft shoulder is different, resulting in uneven load distribution on each thrust pad uniform

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