CN204175792U - Endless belt composite throttling static pressure gas spheric bearing - Google Patents
Endless belt composite throttling static pressure gas spheric bearing Download PDFInfo
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- CN204175792U CN204175792U CN201420548622.3U CN201420548622U CN204175792U CN 204175792 U CN204175792 U CN 204175792U CN 201420548622 U CN201420548622 U CN 201420548622U CN 204175792 U CN204175792 U CN 204175792U
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Abstract
The purpose of this utility model is to provide endless belt composite throttling static pressure gas spheric bearing, comprise spherical bearing wall, it is spherical bearing working surface inside spherical bearing wall, the shallow chamber of ring-type is processed with in the middle part of spherical bearing working surface, spherical bearing wall is circumferentially evenly provided with air vent, air vent present position is positioned at ring-type shallow chamber place, and the width in the shallow chamber of ring-type is the 30%-70% of spherical bearing face width, and the degree of depth in the shallow chamber of ring-type is 1-50 micron.The utility model structure is simple, and processing cost is low; Be easy to detect, be easy to control quality of product, processing quality is stablized.Take full advantage of working surface between throttle orifice and surface throttle effect improves bearing performance comprehensively.Compared with traditional gas bearing, the leveling effect of air film to locating face machining error is further enhanced.
Description
Technical field
The utility model relates to a kind of bearing, specifically spherical bearing.
Background technique
At present, the static pressure gas spheric bearing used in engineering, only utilizes outer throttling static pressure air-bearing or surface throttle carry out bearing load and provide rigidity, usually runs into that bearing capacity is low, rigidity is little, the problem of poor anti jamming capability in the middle of practical application.The static pressure gas spheric bearing of these kinds does not make full use of composite throttling effect, thus can not provide large bearing capacity and rigidity, and poor anti jamming capability, rotating accuracy are difficult to improve; Patent (US6164827A) proposes the air floating structure with surperficial very low power, and this structure only just works under little air-film thickness, does not have remarkable effect to raising air supporting block combination property; Patent (TOHKEMY 2009-209962A) proposes the air-float guide rail that the outlet of a kind of flow controller improves, but its improved confinement area only accounts for and makes 6.25% of area, cannot play surface throttle effect; Patent (CN16517831A) discloses a kind of bicharacteristic surface throttle spherical bearing, and have employed the dark models such as bicharacteristic based on traditional etching process, each flow controller is relatively independent, and between flow controller, working surface is not fully used.
Summary of the invention
The purpose of this utility model is to provide the endless belt composite throttling static pressure gas spheric bearing making full use of bearing working face between throttle orifice and composite throttling effect, improve bearing performance comprehensively.
The purpose of this utility model is achieved in that
The utility model endless belt composite throttling static pressure gas spheric bearing, comprise spherical bearing wall, it is spherical bearing working surface inside spherical bearing wall, it is characterized in that: in the middle part of spherical bearing working surface, be processed with the shallow chamber of ring-type, spherical bearing wall is circumferentially evenly provided with air vent, air vent present position is positioned at ring-type shallow chamber place, and the width in the shallow chamber of ring-type is the 30%-70% of spherical bearing face width, and the degree of depth in the shallow chamber of ring-type is 1-50 micron.
The utility model can also comprise:
1, flow controller is installed in each air vent outlet port.
2, described flow controller is orifice restriction device, Slot Aperture Restrictor, circumferential weld flow controller or porous restriction device.
3, each air vent outlet port arranges the throttle orifice communicated with it.
Advantage of the present utility model is:
(1) structure is simple, and processing cost is low; Be easy to detect, be easy to control quality of product, processing quality is stablized.
(2) working surface between throttle orifice is taken full advantage of and surface throttle effect improves bearing performance comprehensively.
(3) compared with traditional gas bearing, the leveling effect of air film to locating face machining error is further enhanced.
Accompanying drawing explanation
Structural representation when Fig. 1 is the utility model employing flow controller;
Structural representation when Fig. 2 is the utility model employing throttle orifice.
Embodiment
Below in conjunction with accompanying drawing citing, the utility model is described in more detail:
Mode of execution 1:
As shown in Figure 1, the shallow chamber 2 of ring-type is processed with in the middle part of static pressure gas spheric bearing working surface 1, multiple air vent 3 is processed with in the middle part of the shallow chamber of ring-type 2, each air vent 3 outlet is provided with flow controller 4, pressure air enters bearing through air vent 3 and flow controller 4, ring-type shallow chamber width 5 L2 is the 30%-70% of bearing working face width 6 L1, and the ring-type shallow chamber degree of depth 7 H is 1-50 micron.
As shown in Figure 1, the shallow chamber 2 of ring-type is processed with in the middle part of static pressure gas spheric bearing working surface 1, multiple air vent 3 is processed with in the middle part of the shallow chamber of ring-type 2, each air vent 3 outlet is provided with flow controller 4, pressure air enters bearing through air vent 3 and flow controller 4, ring-type shallow chamber width 5 L2 is the 30%-70% of bearing working face width 6 L1, and the ring-type shallow chamber degree of depth 7 H is 1-50 micron.
Flow controller 4 can adopt multiple principle, as orifice restriction device, and Slot Aperture Restrictor, circumferential weld flow controller, and porous restriction device etc.
Be static working surface with above-mentioned bearing working face, be equipped with corresponding outer spherical surface, form spherical bearing secondary.
Mode of execution 2:
As shown in Figure 2, the shallow chamber 2 of ring-type is processed with in the middle part of static pressure gas spheric bearing working surface 1, multiple throttle orifice 8 is processed with in the middle part of the shallow chamber of ring-type 2, each throttle orifice 8 is connected with air vent 3, pressure air enters bearing through air vent 3 and throttle orifice 8, ring-type shallow chamber width 5 L2 is the 30%-70% of bearing working face width 6 L1, and the ring-type shallow chamber degree of depth 7 H is 1-50 micron.
As shown in Figure 2, the shallow chamber 2 of ring-type is processed with in the middle part of static pressure gas spheric bearing working surface 1, multiple throttle orifice 8 is processed with in the middle part of the shallow chamber of ring-type 2, each throttle orifice 8 is connected with air vent 3, pressure air enters bearing through air vent 3 and throttle orifice 8, ring-type shallow chamber width 5 L2 is the 30%-70% of bearing working face width 6 L1, and the ring-type shallow chamber degree of depth 7 H is 1-50 micron.
Be static working surface with above-mentioned bearing working face, be equipped with corresponding outer spherical surface, form spherical bearing secondary.
Claims (4)
1. endless belt composite throttling static pressure gas spheric bearing, comprise spherical bearing wall, it is spherical bearing working surface inside spherical bearing wall, it is characterized in that: in the middle part of spherical bearing working surface, be processed with the shallow chamber of ring-type, spherical bearing wall is circumferentially evenly provided with air vent, air vent present position is positioned at ring-type shallow chamber place, and the width in the shallow chamber of ring-type is the 30%-70% of spherical bearing face width, and the degree of depth in the shallow chamber of ring-type is 1-50 micron.
2. endless belt composite throttling static pressure gas spheric bearing according to claim 1, is characterized in that: flow controller is installed in each air vent outlet port.
3. endless belt composite throttling static pressure gas spheric bearing according to claim 2, is characterized in that: described flow controller is orifice restriction device, Slot Aperture Restrictor, circumferential weld flow controller or porous restriction device.
4. endless belt composite throttling static pressure gas spheric bearing according to claim 1, is characterized in that: each air vent outlet port arranges the throttle orifice communicated with it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420548622.3U CN204175792U (en) | 2014-09-23 | 2014-09-23 | Endless belt composite throttling static pressure gas spheric bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420548622.3U CN204175792U (en) | 2014-09-23 | 2014-09-23 | Endless belt composite throttling static pressure gas spheric bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204175792U true CN204175792U (en) | 2015-02-25 |
Family
ID=52564603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420548622.3U Expired - Fee Related CN204175792U (en) | 2014-09-23 | 2014-09-23 | Endless belt composite throttling static pressure gas spheric bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204175792U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104295605A (en) * | 2014-09-23 | 2015-01-21 | 哈尔滨工程大学 | Annular belt compound throttling static-pressure air spherical bearing |
| CN111649067A (en) * | 2020-05-29 | 2020-09-11 | 北京理工大学 | Gas bearing assembly detection device, method and system |
-
2014
- 2014-09-23 CN CN201420548622.3U patent/CN204175792U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104295605A (en) * | 2014-09-23 | 2015-01-21 | 哈尔滨工程大学 | Annular belt compound throttling static-pressure air spherical bearing |
| CN111649067A (en) * | 2020-05-29 | 2020-09-11 | 北京理工大学 | Gas bearing assembly detection device, method and system |
| CN111649067B (en) * | 2020-05-29 | 2021-07-20 | 北京理工大学 | Gas bearing assembly detection device, method and system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150225 Termination date: 20200923 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |