Hybrid type dynamic pressure gas journal bearing

A radial bearing and hybrid technology, applied in sliding contact bearings, rotating bearings, bearings, etc., can solve problems such as insufficient load capacity, insufficient impact resistance, and inability to achieve high-speed operation, and achieve high impact resistance. The effect of capacity and load capacity
CN105202018AActive Publication Date: 2015-12-30罗立峰
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
罗立峰
Publication Date
2015-12-30

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Abstract

The invention discloses a hybrid type dynamic pressure gas journal bearing. The hybrid type dynamic pressure gas journal bearing comprises a bearing outer cover, an inner cover and a foil type elastic piece arranged between the bearing outer cover and the inner cover. The outer circumferential face and the two end faces of the inner sleeve of the bearing are each provided with groove type patterns of the regular shapes. The groove type patterns of one end face are in mirror symmetry with the groove type patterns on the other end face. The axial contour lines of the groove type patterns on the outer circumferential face correspond to the radial contour lines of the groove type patterns on the two end faces one to one. The axial contour lines and the radial contour lines are connected. The hybrid type dynamic pressure gas journal bearing has the rigid characteristic of the high limit speed of a groove type dynamic pressure gas journal bearing and has the flexible characteristics of the high impact resistance and the high loading capacity of a foil type dynamic pressure gas journal bearing, and the hybrid type dynamic pressure gas journal bearing can be applied in the ultrahigh-speed field of large loads.
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Description

technical field

[0001] The present invention relates to a dynamic pressure gas radial bearing, in particular, to a high-speed dynamic pressure gas radial bearing with both the rigid feature of high limit rotational speed of a groove type dynamic pressure gas radial bearing and a foil type dynamic pressure gas radial bearing. The invention relates to a hybrid dynamic pressure gas radial bearing with flexible features of impact resistance and load capacity, belonging to the technical field of gas bearings. Background technique

[0002] Gas bearings have the advantages of high speed, high precision, high temperature resistance, low friction loss and long life. After rapid development in recent decades, gas bearings have been widely used in high-speed support, high-precision support and other fields. At present, various types of gas bearings have been developed, mainly divided into dynamic pressure type and static pressure type.

[0003] The dynamic pressure gas bearing uses ga...

Claims

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