Air Floating Thrust Bearing Based on Coplanar Load Suction of Outer Rings

Abstract

The air-floating thrust bearing based on the coplanar load absorption of the outer ring belongs to the technical field of gas bearing and gas lubrication. The device adopts a dense ball suction load structure. When the load increases, adjust the pre-tightening screw and the dense ball height adjuster to make all the steel balls in a compressed state. At this time, the inner ring of the air flotation shaft is provided by the restrictor. Support force, the outer ring of the air flotation shaft is supported by the suction and load device, and the axial restrictor and the working surface of the suction load device are both the lower surface of the air flotation shaft, which finally forms the air flotation support and the bead support. Coplanar support effect. The invention combines the dense ball shafting with the air bearing technology, utilizes the air bearing to improve the rotation accuracy, and at the same time utilizes the dense ball shaft to improve the axial load, and proposes an air bearing thrust based on the coplanar load absorption of the outer ring Bearing, to achieve the purpose of taking into account the bearing accuracy and load.

Description

technical field [0001] The invention relates to an air-floating thrust bearing, in particular to an air-floating thrust bearing based on the coplanar load absorption of outer rings. Background technique [0002] Due to its significant advantages such as long life, high precision, low power consumption, good damping characteristics, wide speed range and easy processing, hydrostatic air bearings are widely used in precision and ultra-precision engineering, micro engineering, space technology, aerospace medical equipment and nuclear energy. Engineering and other fields have important applications. Therefore, many scholars have made continuous research on it, in order to achieve the optimization and improvement of bearing performance. [0003] Patent CN200810209792.8 "A Porous Gas Static Pressure Thrust Bearing" and Patent CN201810910337.4 "A Vacuum Adsorption Type Porous Gas Static Pressure Thrust Bearing" both describe air bearing with porous material as the material, To a c...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to solve the problem of high precision but often poor load-carrying performance of the air bearing technology existing in the above-mentioned prior art, combine the dense ball bearing system with the air bearing technology, use the air bearing to improve the rotation accuracy, and at the same time use The dense ball shaft system increases the axial load, achieving the purpose of both bearing precision and load bearing

Images