CN219549360U - Dynamic pressure gas bearing - Google Patents
Dynamic pressure gas bearing Download PDFInfo
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- CN219549360U CN219549360U CN202320905335.2U CN202320905335U CN219549360U CN 219549360 U CN219549360 U CN 219549360U CN 202320905335 U CN202320905335 U CN 202320905335U CN 219549360 U CN219549360 U CN 219549360U
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- dynamic pressure
- gas bearing
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Abstract
The utility model discloses a dynamic pressure gas bearing, which comprises a bearing seat and a supporting wave foil, and also comprises a plurality of C-shaped foils, wherein a plurality of top foils are fixed on the outer sides of the C-shaped foils, and a connecting component for connecting the C-shaped foils and a limiting component for blocking and limiting after connection are arranged on the inner sides of the bearing seat. According to the dynamic pressure gas bearing, the C-shaped foil on the supporting wave foil is detachably installed and connected with the bearing seat through the mutual matching of the connecting component and the limiting component, so that the C-shaped foil at the corresponding position is conveniently disassembled and replaced after the supporting wave foil on the foil bearing is damaged, the whole foil bearing is not required to be replaced after the supporting wave foil is damaged, and the use cost of the gas bearing is reduced.
Description
Technical Field
The utility model belongs to the technical field of gas bearings, and particularly relates to a dynamic pressure gas bearing.
Background
The gas bearing is a sliding bearing taking gas as a lubricating medium, and can be divided into a gas hydrostatic bearing, a dynamic pressure gas bearing and an extrusion film gas bearing according to the working principle of the gas bearing, wherein the dynamic pressure gas bearing is also called a self-acting bearing, compared with the gas hydrostatic bearing, an external gas source gas supply system is not needed, the dynamic pressure gas bearing works by utilizing the dynamic pressure effect principle, a certain convergence gap is formed between two opposite moving surfaces, the high-speed movement of the moving surfaces brings gas with viscosity into the wedge gap to generate pressure rise, so that the bearing capacity acting on a rotor is generated, the bearing capacity is increased along with the increase of the rotating speed, and the typical dynamic pressure gas bearing structure forms are a notch gas dynamic bearing, an inclinable tile gas dynamic bearing and a foil bearing.
When the rotating speed of the foil bearing is low in the start-stop stage and the dynamic pressure effect is weak, the foil bearing is insufficient to generate supporting force acting on the supporting wave foil, so that the supporting wave foil is in contact with the inner wall of the bearing seat, serious friction and abrasion are generated, the damage of the supporting wave foil on the foil bearing is accelerated, the supporting wave foil on the foil bearing is connected with the supporting seat in a spot welding mode, the whole foil bearing is required to be replaced after the supporting wave foil on the foil bearing is damaged, and the use cost of the gas bearing is increased.
The present utility model has been made in view of this.
Disclosure of Invention
In order to solve the technical problems, the utility model adopts the basic conception of the technical scheme that:
the dynamic pressure gas bearing comprises a bearing seat and supporting wave foils, and further comprises a plurality of C-shaped foils, wherein a plurality of top foils are fixed on the outer sides of the C-shaped foils, and a connecting assembly for connecting the C-shaped foils and a limiting assembly for blocking and limiting after connection are arranged on the inner sides of the bearing seat.
The connecting assembly comprises T-shaped connecting plates fixed on two sides of the C-shaped foil, and two connecting grooves which are mutually matched with the T-shaped connecting plates are formed in the inner side of the bearing seat.
The limiting assembly comprises an installation groove formed in one end of the bearing seat, a limiting ring is arranged on one side of the bearing seat, and the limiting ring is in threaded connection with the inner wall of the installation groove.
One side of the limiting ring is fixed with a plurality of fixing pins.
The inside of bearing frame is provided with the pushing component that is convenient for disassemble the release after the C type foil is connected, the pushing component is including seting up the ring channel in the inside of bearing frame, the spread groove communicates with each other with the ring channel, be connected with annular push pedal on the ring channel through a plurality of extrusion components.
The extrusion assembly comprises a sleeve fixed on one side of the annular push plate, a slide rod is connected to the sleeve in a sliding manner, one end of the slide rod is fixed to the inner wall of the annular groove, a spring is sleeved on the side wall of the sleeve, and two ends of the spring are respectively connected with the annular push plate and the inner wall of the annular groove.
Compared with the prior art, the utility model has the following beneficial effects:
according to the dynamic pressure gas bearing, the C-shaped foil on the supporting wave foil is detachably installed and connected with the bearing seat through the mutual matching of the connecting component and the limiting component, so that the C-shaped foil at the corresponding position is conveniently disassembled and replaced after the supporting wave foil on the foil bearing is damaged, the whole foil bearing is not required to be replaced after the supporting wave foil is damaged, and the use cost of the gas bearing is reduced.
The following describes the embodiments of the present utility model in further detail with reference to the accompanying drawings.
Drawings
In the drawings:
FIG. 1 is a schematic diagram of the overall outline structure of the present utility model;
FIG. 2 is a schematic view of the structure of a carrier foil according to the present utility model;
FIG. 3 is a schematic view of a limiting assembly according to the present utility model;
FIG. 4 is a schematic view of the structure of the carrier foil of the present utility model after it is mounted on a bearing housing;
FIG. 5 is a schematic view of a pushing assembly and a pressing assembly according to the present utility model;
FIG. 6 is a schematic view of a C-foil structure according to the present utility model.
In the figure: 1-a bearing seat; 2-supporting a wave foil; a 201-C type foil; 202-top foil; a 301-T-shaped connecting plate; 302-a connecting groove; 401-mounting slots; 402-a limiting ring; 403-fixing pins; 501-an annular groove; 502-an annular push plate; 601-a sleeve; 602-a slide bar; 603-springs.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and the following embodiments are used to illustrate the present utility model.
As shown in fig. 1 to 6, a dynamic pressure gas bearing comprises a bearing seat 1, a supporting wave foil 2 and a supporting wave foil 2, wherein the supporting wave foil 2 is composed of a plurality of C-shaped foils 201, a plurality of top foils 202 are fixed on the outer sides of the C-shaped foils 201, and a connecting component for connecting the C-shaped foils 201 and a limiting component for blocking and limiting after connection are arranged on the inner sides of the bearing seat 1;
what needs to be explained here is: through the cooperation of the connecting component and the limiting component, the C-shaped foil 201 on the supporting corrugated foil 2 is detachably installed and connected with the bearing seat 1, so that the C-shaped foil 201 at the corresponding position is conveniently disassembled and replaced after the supporting corrugated foil 2 on the foil bearing is damaged, the whole foil bearing is not required to be replaced after the supporting corrugated foil 2 is damaged, and the use cost of the gas bearing is reduced.
The connecting assembly comprises T-shaped connecting plates 301 fixed on two sides of the C-shaped foil 201, and two connecting grooves 302 which are mutually matched with the T-shaped connecting plates 301 are formed in the inner side of the bearing seat 1;
what needs to be explained here is: the connection mode of the T-shaped connection plate 301 and the connection groove 302 is used for facilitating the connection and installation of the C-shaped foil 201 on the bearing seat 1.
The limiting assembly comprises an installation groove 401 arranged at one end of the bearing seat 1, a limiting ring 402 is arranged on one side of the bearing seat 1, and the limiting ring 402 is in threaded connection with the inner wall of the installation groove 401;
what needs to be explained here is: after the C-shaped foil 201 is installed and connected on the bearing seat 1, a limiting ring 402 is installed on the installation groove 401 in a threaded mode and abuts against one side of the installed C-shaped foil 201, and limiting blocking is conducted on the C-shaped foil 201 after connection and installation.
A plurality of fixing pins 403 are fixed on one side of the limiting ring 402;
what needs to be explained here is: the rotation of the stop collar 402 is facilitated by a plurality of fixing pins 403.
The inside of the bearing seat 1 is provided with a pushing component which is convenient for disassembling and pushing out after the C-shaped foil 201 is connected, the pushing component comprises an annular groove 501 which is arranged in the bearing seat 1, the connecting groove 302 is communicated with the annular groove 501, and the annular groove 501 is connected with an annular push plate 502 through a plurality of extrusion components; the extrusion assembly comprises a sleeve 601 fixed on one side of the annular push plate 502, a slide bar 602 is connected to the sleeve 601 in a sliding way, one end of the slide bar 602 is fixed with the inner wall of the annular groove 501, a spring 603 is sleeved on the side wall of the sleeve 601, and two ends of the spring 603 are respectively connected with the annular push plate 502 and the inner wall of the annular groove 501;
what needs to be explained here is: when each C-shaped foil 201 is installed on the bearing seat 1 through the connection mode of the T-shaped connection plate 301 and the connection groove 302, the C-shaped foil 201 is propped against the annular push plate 502, in the process of propping against the annular push plate 502, the slide rod 602 is pushed to slide on the sleeve 601 and drive the spring 603 to deform under force to generate elastic force, and the C-shaped foil 201 on one side of the annular push plate 502 is pushed by the elastic force of the spring 603, so that the C-shaped foil 201 can be conveniently separated and disassembled from the bearing seat 1 when the C-shaped foil 201 needs to be replaced.
When the foil bearing is used, a plurality of C-shaped foils 201 are connected and installed on a bearing seat 1 through a connection mode of a T-shaped connecting plate 301 and a connecting groove 302, after installation, a limiting ring 402 is installed on an installation groove 401 in a threaded mode and abuts against one side of the installed C-shaped foils 201, limiting blocking is carried out on the C-shaped foils 201 after connection and installation, the C-shaped foils 201 after installation and limiting form a supporting wave foil 2 to support the foil bearing for use, the C-shaped foils 201 at corresponding positions are disassembled and replaced after the supporting wave foil 2 is damaged on the foil bearing conveniently, replacement of the whole foil bearing after the supporting wave foil 2 is damaged is not needed, and the use cost of the gas bearing is reduced;
when each C-shaped foil 201 is installed on the bearing seat 1 through the connection mode of the T-shaped connection plate 301 and the connection groove 302, the C-shaped foil 201 is propped against the annular push plate 502, in the process of propping against the annular push plate 502, the slide rod 602 is pushed to slide on the sleeve 601 and drive the spring 603 to deform under force to generate elastic force, and the C-shaped foil 201 on one side of the annular push plate 502 is pushed by the elastic force of the spring 603, so that the C-shaped foil 201 can be conveniently separated and disassembled from the bearing seat 1 when the C-shaped foil 201 needs to be replaced.
Claims (6)
1. A dynamic pressure gas bearing comprising:
a bearing block (1) and a supporting wave foil (2);
characterized by further comprising:
the supporting wave foil (2) consists of a plurality of C-shaped foils (201), a plurality of top foils (202) are fixed on the outer sides of the C-shaped foils (201), and a connecting assembly for connecting the C-shaped foils (201) and a limiting assembly for blocking and limiting after connection are arranged on the inner sides of the bearing seats (1).
2. A hydrodynamic gas bearing according to claim 1, wherein the connection assembly comprises T-shaped connection plates (301) fixed on both sides of the C-shaped foil (201), and two connection grooves (302) arranged in a mutually matched manner with the T-shaped connection plates (301) are provided on the inner side of the bearing housing (1).
3. A dynamic pressure gas bearing as claimed in claim 2, wherein the limit assembly comprises a mounting groove (401) formed in one end of the bearing seat (1), a limit ring (402) is arranged on one side of the bearing seat (1), and the limit ring (402) is in threaded connection with the inner wall of the mounting groove (401).
4. A dynamic pressure gas bearing as claimed in claim 3, characterized in that a plurality of fixing pins (403) are fixed to one side of the limit ring (402).
5. A hydrodynamic gas bearing according to claim 4, wherein a pushing assembly for facilitating the disassembly and pushing out of the C-shaped foil (201) after the connection is provided in the bearing housing (1), the pushing assembly comprises an annular groove (501) provided in the bearing housing (1), the connecting groove (302) is communicated with the annular groove (501), and the annular groove (501) is connected with an annular pushing plate (502) through a plurality of pressing assemblies.
6. The dynamic pressure gas bearing as claimed in claim 5, wherein the pressing assembly comprises a sleeve (601) fixed on one side of the annular push plate (502), a slide bar (602) is slidably connected to the sleeve (601), one end of the slide bar (602) is fixed to the inner wall of the annular groove (501), a spring (603) is sleeved on the side wall of the sleeve (601), and two ends of the spring (603) are connected to the annular push plate (502) and the inner wall of the annular groove (501) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320905335.2U CN219549360U (en) | 2023-04-21 | 2023-04-21 | Dynamic pressure gas bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320905335.2U CN219549360U (en) | 2023-04-21 | 2023-04-21 | Dynamic pressure gas bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219549360U true CN219549360U (en) | 2023-08-18 |
Family
ID=87699713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320905335.2U Active CN219549360U (en) | 2023-04-21 | 2023-04-21 | Dynamic pressure gas bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219549360U (en) |
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2023
- 2023-04-21 CN CN202320905335.2U patent/CN219549360U/en active Active
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