Hybrid type dynamic-pressure gas thrust bearing

A thrust 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

Inactive Publication Date: 2015-09-09
罗立峰
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  • 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 thrust 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

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  • Hybrid type dynamic-pressure gas thrust bearing
  • Hybrid type dynamic-pressure gas thrust bearing
  • Hybrid type dynamic-pressure gas thrust bearing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] like figure 1 As shown: a hybrid dynamic pressure gas thrust bearing provided in this embodiment, including: two outer disks 1, an inner disk 2 is sandwiched between the two outer disks 1, and an inner disk 2 is arranged between each outer disk 1 and inner disk 2. There is a foil-shaped elastic member 3; the left end surface of the inner plate 2 is provided with a regular-shaped groove pattern 21, and the right end surface is provided with a regular-shaped groove pattern 22.

[0042] combine Figure 2a and Figure 2bIt can be seen that the groove pattern 21 on the left end surface of the inner disk 2 and the groove pattern 22 on the right end surface form a mirror image symmetry, the radial contour line of the groove pattern 21 on the left end surface and the diameter of the groove pattern 22 on the right end surface Form a one-to-one correspondence to the contour lines. The grooved patterns 21 and 22 have the same shape, and in this embodiment, both are in the shape...

Embodiment 2

[0046] to combine Figure 6a , 6b , 7, 8 and 10, it can be seen that the difference between a hybrid dynamic pressure gas thrust bearing provided in this embodiment and embodiment 1 is only that:

[0047] The outer peripheral surface of the inner disc 2 is also provided with a grooved pattern 23, and the shape of the grooved pattern 23 on the outer peripheral surface is the same as that of the grooved patterns (21 and 22) on the left and right end faces (in this embodiment Both are in the shape of impellers), and the axial contour lines of the groove pattern 23 on the outer peripheral surface and the radial contour lines of the groove patterns (21 and 22) on the left and right end surfaces all form a one-to-one correspondence and intersect each other; namely:

[0048] The axial high line 231 in the groove pattern 23 on the outer circumferential surface corresponds to the radial high line 211 in the groove pattern 21 on the left end surface, and they meet each other before the...

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Abstract

The invention discloses a hybrid type dynamic-pressure gas thrust bearing. The hybrid type dynamic-pressure gas thrust bearing comprises two outer plates, wherein an inner plate is clamped between the two outer plates; a foil type elastic part is arranged between each outer plate and the inner plate; groove type patterns with regular shapes are arranged on the two end surfaces of the inner plate; and the groove type patterns on one end surface and the groove type patterns on the other end surface form mirror symmetry. The hybrid type dynamic-pressure gas thrust bearing provided by the invention not only has rigid characteristics of high-limit rotation speed of a groove type dynamic-pressure gas thrust bearing, but also has flexible characteristics of high impact resistance and high loading capacity of a foil piece type dynamic-pressure gas thrust bearing, so that the application, in the ultra-high speed field under relatively large load, of the dynamic-pressure gas thrust bearing can be satisfied.

Description

technical field [0001] The present invention relates to a dynamic pressure gas thrust bearing, in particular, relates to a kind of rigidity characteristic of the high limit rotational speed of the trough type dynamic pressure gas thrust bearing and the high speed of the foil type dynamic pressure gas thrust bearing. The invention relates to a hybrid dynamic pressure gas thrust 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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C17/08F16C33/02
Inventor 罗立峰
Owner 罗立峰
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