Unlock instant, AI-driven research and patent intelligence for your innovation.

A hybrid dynamic pressure gas radial bearing

A radial bearing and hybrid technology, applied in the direction of sliding contact bearings, rotating bearings, bearings, etc., can solve the problems of insufficient load capacity, inability to achieve high-speed operation, and insufficient impact resistance to achieve high impact resistance The effect of capacity and load capacity

Active Publication Date: 2018-06-12
罗立峰
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the high rigidity of the groove-type dynamic pressure gas radial bearing, its impact resistance is not good enough and its load capacity is not large enough to achieve high-speed operation under a large load.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A hybrid dynamic pressure gas radial bearing
  • A hybrid dynamic pressure gas radial bearing
  • A hybrid dynamic pressure gas radial bearing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Such as figure 1 and image 3 As shown: a hybrid dynamic pressure gas radial bearing provided in this embodiment, including: a bearing outer sleeve 1 and a bearing inner sleeve 2, the outer circumferential surface and the left and right end surfaces of the bearing inner sleeve 2 have regular shapes Groove patterns (21, 22 and 23 in the figure, the groove patterns in this embodiment are all in the shape of impellers), and the groove pattern 22 on the left end surface and the groove pattern 23 on the right end surface form a mirror image.

[0043] combine Figure 1 to Figure 4 As shown: the axial contour lines of the groove patterns 21 on the outer circumferential surface of the bearing inner sleeve 2 and the radial contour lines of the groove patterns (22 and 23) on the left and right end faces form a one-to-one correspondence and intersect each other , that is: the axial high position line 211 in the groove pattern 21 on the outer circumferential surface corresponds t...

Embodiment 2

[0051] Such as Figure 8 As shown, the difference between the hybrid dynamic pressure gas radial bearing provided in this embodiment and Embodiment 1 is only that the foil-shaped elastic member 3 is composed of corrugated foils 31 and flat foils 32, and the corrugated foils 31 The top end of the arc-shaped protrusion 311 is in contact with the inner peripheral wall of the bearing casing 1 , and the transition bottom 312 between corrugated foils 31 is in contact with the flat foil 32 .

[0052] Figure 9 Shown is a schematic structural view of the corrugated foil 31 .

Embodiment 3

[0054] Such as Figure 10 and 11 As shown, the difference between the hybrid dynamic pressure gas radial bearing provided in this embodiment and Embodiment 1 is that the foil-shaped elastic member 3 is composed of a flat foil 32 and a flat foil 33 with a through hole 331 .

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

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.

Description

technical field [0001] The present invention relates to a dynamic pressure gas radial bearing, in particular, relates to a kind of rigidity characteristic of the high limit speed of the groove type dynamic pressure gas radial bearing and the high speed of the foil type dynamic pressure gas radial bearing. The invention relates to a hybrid dynamic pressure gas radial bearing with flexible characteristics 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, small friction loss, and long life. After rapid development in recent decades, gas bearings have been widely used in high-speed bearings, high-precision bearings 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 gas as a l...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): F16C27/02F16C17/02
Inventor 罗立峰
Owner 罗立峰