Thrust bearing bush for pedestal bearing

Abstract

The invention discloses a thrust bearing bush for a pedestal bearing. The thrust bearing bush is connected with an external high-pressure oil filler, so that the vibration of the bearing reaches 1.9mm / s and is far lower than the national standard of 2.3mm / s, reformation cost is low and the use reliability of high-speed rotating devices such as a motor is also improved. The structure of the thrustbearing bush comprises an upper thrust bearing bush and a lower thrust bearing bush, wherein oil guiding devices which are not communicated with each other are arranged on the end surfaces of the twothrust bearing bushes; a pair of pressure oil inlets communicated with the oil guiding devices is arranged at the top of the two thrust bearing bushes at the same time; and the pressure oil inlets are connected with an external high pressure oil device through a connecting device.

Description

technical field [0001] The patent of the present invention relates to the thrust bearing pad structure of seat bearings for high-speed rotating devices such as motors. It is a thrust bearing pad for seat bearings that can be directly assembled in ordinary seat bearings, and belongs to the technology for realizing axial positioning of high-speed rotating devices such as motors. field. Background technique [0002] The thrust bearing pad structure of seat bearings used in high-speed rotating devices such as motors generally reduces the gap between the bearing pad and the rotor bearing stop to 0.5 mm on one side, and at the same time increases the shoulder of the rotor bearing stop, and the tungsten gold layer on the end face of the bearing pad is correspondingly raised and fixed. Symmetrically mill 6-10 radial oil grooves on the stressed tungsten gold surface, lubricate the bearing bush with the oil throwing ring, and throw the oil to the stressed tungsten gold surface of the ...

AI Technical Summary

Problems solved by technology

[0004] When the high-speed rotating device such as the motor is dragged or dragged by other high-speed rotating devices, if the gap between the opposing bearing bush and the rotor bearing is large or there is a strong axial pulling force, especially when the speed exceeds 3000 rpm, due to Insufficient oil film pressure can easily cause oil film excitation and even cause the temperature of the stressed tungsten gold surface to rise sharply, and the tungsten gold surface will be ground off, resulting in damage to the bearing bush and the shaft

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