Radially and axially integrated sliding bearing

Abstract

The invention relates to a radially and axially integrated sliding bearing. The sliding bearing comprises a bearing pedestal, a bearing shell, an oil inlet port, a circumferential oil inlet groove, a thrust bearing oil inlet port, a thrust bearing shell, a radial bearing shell, a radial bearing oil inlet port, a bearing shoulder, a rotating shaft, a back-up ring and an oil outlet port. When the bearing is running, lubricating oil is injected into the circumferential oil inlet groove of the bearing shell through the oil inlet port; then part of the lubricating oil enters into a gap between the rotating shaft and the radial bearing shell through the radial bearing oil inlet port, and an oil membrane is formed as the rotating shaft rotates, and the oil membrane is used for bearing radial load; meanwhile, another part of the lubricating oil enters into a gap among the thrust bearing shell, the bearing shoulder and the back-up ring through the thrust bearing oil inlet port, and an oil membrane is formed as the bearing shell and the back-up ring rotate, and the oil membrane is used for bearing bidirectional axial load. The radially and axially integrated sliding bearing is capable of bearing both radial load and bidirectional axial load.

Description

technical field [0001] The invention relates to a radial and axial integrated sliding bearing in the mechanical field. Background technique [0002] According to the different friction properties in bearings, bearings are divided into two categories: sliding bearings and rolling bearings. Rolling bearings are widely used in general machines because of their small friction coefficient and low starting resistance, and they are standardized, easy to select, lubricate, and maintain. However, as machines are increasingly developing towards high speed and high power, the unique advantages of the sliding bearing itself, such as non-contact, large load capacity, and long life, make it also occupy an important position in modern machinery. [0003] However, sliding bearings also have disadvantages such as high heat generation, non-standard, complex structure, and large volume. Under high-speed conditions, heat generation is the main factor affecting the performance of sliding be...

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Problems solved by technology

[0003] However, sliding bearings also have disadvantages such as high heat generation, non-standard, complex structure, and large volume. Under high speed conditions, heat generation is the main factor affecting the performance of sliding bearings.

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