CN219827472U - Air bearing with sealing structure - Google Patents
Air bearing with sealing structure Download PDFInfo
- Publication number
- CN219827472U CN219827472U CN202321410620.3U CN202321410620U CN219827472U CN 219827472 U CN219827472 U CN 219827472U CN 202321410620 U CN202321410620 U CN 202321410620U CN 219827472 U CN219827472 U CN 219827472U
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- air
- bearing
- ring
- sealing
- wall
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- 238000007789 sealing Methods 0.000 title claims abstract description 43
- 230000000149 penetrating effect Effects 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 3
- 239000000428 dust Substances 0.000 abstract description 7
- 230000008093 supporting effect Effects 0.000 abstract description 2
- 239000000725 suspension Substances 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
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- Sealing Of Bearings (AREA)
Abstract
The utility model discloses an air bearing with a sealing structure, which belongs to the technical field of air bearings and comprises a bearing outer ring, wherein sealing rings are arranged in inner walls of two sides of the outer part of the bearing outer ring, air inlets are formed in the outer walls of the sealing rings, an inner ring output shaft is arranged between the sealing rings, a load inner ring is arranged between the inner ring output shafts, an air inlet pipe is arranged on the outer wall of the bearing outer ring, the bottom of the air inlet pipe is connected with an air flow cavity, an orifice is formed in the bottom of the air flow cavity, air outlet holes are formed in the inner walls of the air flow cavity in a penetrating mode, and an air filter screen is clamped in the air outlet holes. According to the utility model, the sealing ring and the filter screen are arranged on the traditional air bearing, so that the tightness of the inner ring and the outer ring can be improved, and meanwhile, the air filter screen is arranged in the air outlet, so that the amount of external dust entering the bearing in the state of stopping the bearing can be reduced, the suspension supporting effect of an air film on the inner ring is avoided, and the efficient operation of the air bearing is ensured.
Description
Technical Field
The utility model relates to the technical field of air bearings, in particular to an air bearing with a sealing structure.
Background
Air bearings (also called air bearings) refer to sliding bearings with a gas (usually air, but also other gases are possible) as lubricant. Air has less viscosity than oil, is high temperature resistant, and has no pollution, so that it can be used in high-speed machine, instrument and radioactive device, but its load capacity is lower than that of oil. Air bearings fall into three main categories: aerostatic bearings, aerodynamic bearings and squeeze film bearings. Aerostatic bearings are widely used in the general industry.
When the existing air bearing works, high-pressure gas supports the inner ring of the bearing through the air film to reduce friction loss, the high-pressure gas is discharged outwards through the air outlet, gas circulation is achieved, however, sealing elements are lacking between the inner ring and the outer ring of the existing air bearing, the air outlet also lacks a sealing structure, dust can enter the bearing, the dust is adhered to the outer wall of the inner ring, and the inner ring rubs with the outer ring through the dust when rotating due to the fact that the air film is thinner, so that the temperature of the bearing is improved, and the use of the bearing is not facilitated.
Disclosure of Invention
The utility model mainly aims to provide an air bearing with a sealing structure.
The aim of the utility model can be achieved by adopting the following technical scheme:
the utility model provides an air bearing with seal structure, includes the bearing outer lane, be provided with the sealing washer in the outside both sides inner wall of bearing outer lane, the inlet port has been seted up on the outer wall of sealing washer, be provided with the inner circle output shaft between the sealing washer, be provided with the load inner circle between the inner circle output shaft, be provided with the intake pipe on the bearing outer lane outer wall, the intake pipe bottom is connected with the air current chamber, the orifice has been seted up to the bottom in air current chamber, run through in the air current chamber inner wall and be provided with the venthole, the air screen has been pressed to the venthole intussuseption card.
Preferably, the sealing ring is made of expansion telescopic materials, and is extruded on the inner wall of the outer ring of the bearing through the output shaft of the inner ring.
Preferably, the air inlet hole of the sealing ring faces the inner part of the bearing outer ring, and the load inner ring and the inner ring output shaft are integrally welded.
Preferably, the air inlet pipe is welded with the outer wall of the bearing outer ring, and the air inlet pipe is communicated with the air flow cavity.
Preferably, the orifice is formed at the bottom of the airflow cavity in a penetrating manner and aligned with the outer wall of the load inner ring, and the air outlet hole is in a columnar structure and is not contacted with high-pressure airflow in the airflow cavity.
Preferably, the air filter screen is detachably mounted, and a flange plate is welded at one end outside the bearing outer ring.
The beneficial technical effects of the utility model are as follows:
according to the utility model, the sealing ring and the filter screen are arranged on the traditional air bearing, so that the tightness of the inner ring and the outer ring can be improved, and meanwhile, the air filter screen is arranged in the air outlet, so that the amount of external dust entering the bearing in the state of stopping the bearing can be reduced, the suspension supporting effect of an air film on the inner ring is avoided, and the efficient operation of the air bearing is ensured.
Drawings
FIG. 1 is a schematic illustration of a preferred embodiment of an air bearing with a seal structure in accordance with the present utility model;
FIG. 2 is a front cross-sectional view of a preferred embodiment of an air bearing with a seal structure in accordance with the present utility model;
fig. 3 is a right side view of a seal ring in a preferred embodiment of an air bearing having a seal structure according to the present utility model.
The reference numerals are explained as follows:
1-a bearing outer ring; 2-an air inlet pipe; 3-a sealing ring; 4-an inner ring output shaft; 5-a flange plate; 6-an air outlet hole; 7-an airflow cavity; 8-orifice; 9-loading the inner ring; 10-an air inlet hole; 11-an air filter screen.
Detailed Description
In order to make the technical solution of the present utility model more clear and obvious to those skilled in the art, the present utility model will be described in further detail with reference to examples and drawings, but the embodiments of the present utility model are not limited thereto.
As shown in fig. 1-3, the air bearing with the sealing structure provided in this embodiment includes a bearing outer ring 1, sealing rings 3 are arranged in inner walls of two sides outside the bearing outer ring 1, air inlets 10 are formed in outer walls of the sealing rings 3, an inner ring output shaft 4 is arranged between the sealing rings 3, a load inner ring 9 is arranged between the inner ring output shafts 4, an air inlet pipe 2 is arranged on the outer wall of the bearing outer ring 1, an air flow cavity 7 is connected to the bottom of the air inlet pipe 2, an orifice 8 is formed in the bottom of the air flow cavity 7, air outlet holes 6 are formed in the inner walls of the air flow cavity 7 in a penetrating manner, and an air filter screen 11 is clamped in the air outlet holes 6.
The sealing ring 3 is made of expansion telescopic materials, the sealing ring 3 is extruded on the inner wall of the bearing outer ring 1 through the inner ring output shaft 4, the inside of the sealing ring 3 is of a cavity structure, in a normal state, the sealing ring is extruded and fixed on the outer wall of the bearing through the inner ring output shaft 4, and after high-pressure airflow is introduced, the high-pressure airflow enters the inside of the sealing ring 3 from the air inlet hole 10, so that the expansion state of the sealing ring can be improved, and the sealing performance is improved.
The air inlet hole 10 of the sealing ring 3 faces the inside of the bearing outer ring 1, and the load inner ring 9 and the inner ring output shaft 4 are welded integrally.
The air inlet pipe 2 is welded with the outer wall of the bearing outer ring 1, the air inlet pipe 2 is communicated with the airflow cavity 7, and the air inlet pipe 2 is externally connected with a compressed gas machine.
The throttle hole 8 is formed at the bottom of the airflow cavity 7 in a penetrating mode and aligned with the outer wall of the load inner ring 9, the air outlet hole 6 is of a columnar structure and is not contacted with high-pressure air flow in the airflow cavity 7, the high-pressure air flow enters from the airflow cavity 7, passes through the throttle hole 8 and enters the bearing, and is discharged from the air outlet hole 6 to form a circulation.
The air filter screen 11 is detachably mounted, and a flange plate 5 is welded at one end outside the bearing outer ring 1.
The working principle of the device is as follows: when the device is specifically used, the air inlet pipe 2 is externally connected with high-pressure air, the high-pressure air enters the air flow cavity 7 in the bearing outer ring 1, then is sprayed out from the throttle hole 8, the load inner ring 9 is suspended, meanwhile, a part of air flow enters the sealing ring 3 through the air inlet hole 10, the sealing ring 3 is expanded, the inner ring output shaft 4 is tightly attached to the bearing outer ring 1, dust can be reduced, the inner ring output shaft 4 is connected with the load to drive the high-speed rotation by external driving rotation, the load inner ring 9 is driven to rotate at a high speed in the bearing outer ring 1 during rotation, the other part of air flow is discharged from the air outlet hole 6, the high-pressure air circulation is realized, when the bearing is stopped, the air outlet hole 6 is not discharged with high-speed air flow, at the moment, the external dust falls into the air outlet hole 6 and is collected by the air filter 11, the inside the bearing outer ring 1 is reduced, the tightness of the bearing is further improved, and the high-efficiency operation of the air bearing is ensured.
The above is merely a further embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto, and any person skilled in the art will be able to apply equivalents and modifications according to the technical solution and the concept of the present utility model within the scope of the present utility model disclosed in the present utility model.
Claims (6)
1. An air bearing with seal structure, its characterized in that: including bearing inner race (1), be provided with sealing washer (3) in the inside wall of bearing outer race (1) outside both sides, inlet port (10) have been seted up on the outer wall of sealing washer (3), be provided with inner circle output shaft (4) between sealing washer (3), be provided with load inner circle (9) between inner circle output shaft (4), be provided with intake pipe (2) on the bearing outer race (1) outer wall, intake pipe (2) bottom is connected with air current chamber (7), orifice (8) have been seted up to the bottom of air current chamber (7), run through in air current chamber (7) inner wall and be provided with venthole (6), the air filter screen (11) have been pressed to the card in venthole (6).
2. An air bearing with sealing structure according to claim 1, characterized in that: the sealing ring (3) is made of expansion telescopic materials, and the sealing ring (3) is extruded on the inner wall of the bearing outer ring (1) through the inner ring output shaft (4).
3. An air bearing with sealing structure according to claim 2, characterized in that: the air inlet hole (10) of the sealing ring (3) faces the inside of the bearing outer ring (1), and the load inner ring (9) and the inner ring output shaft (4) are welded integrally.
4. An air bearing with sealing structure according to claim 3, characterized in that: the air inlet pipe (2) is welded with the outer wall of the bearing outer ring (1), and the air inlet pipe (2) is communicated with the airflow cavity (7).
5. An air bearing with sealing structure according to claim 4, wherein: the throttle hole (8) is formed at the bottom of the airflow cavity (7) in a penetrating mode and is aligned with the outer wall of the load inner ring (9), and the air outlet hole (6) is of a columnar structure and is not in contact with high-pressure airflow in the airflow cavity (7).
6. An air bearing with sealing structure according to claim 5, characterized in that: the air filter screen (11) is detachably mounted, and a flange plate (5) is welded at one end outside the bearing outer ring (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321410620.3U CN219827472U (en) | 2023-06-05 | 2023-06-05 | Air bearing with sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321410620.3U CN219827472U (en) | 2023-06-05 | 2023-06-05 | Air bearing with sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219827472U true CN219827472U (en) | 2023-10-13 |
Family
ID=88250688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321410620.3U Active CN219827472U (en) | 2023-06-05 | 2023-06-05 | Air bearing with sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219827472U (en) |
-
2023
- 2023-06-05 CN CN202321410620.3U patent/CN219827472U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: An air bearing with a sealed structure Granted publication date: 20231013 Pledgee: China Construction Bank Co.,Ltd. Zhuozhou Geophysical Prospecting Sub branch Pledgor: Hebei Linghe Technology Co.,Ltd. Registration number: Y2024980012940 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |