CN220622517U - Sealing structure for sliding bearing - Google Patents
Sealing structure for sliding bearing Download PDFInfo
- Publication number
- CN220622517U CN220622517U CN202322109815.0U CN202322109815U CN220622517U CN 220622517 U CN220622517 U CN 220622517U CN 202322109815 U CN202322109815 U CN 202322109815U CN 220622517 U CN220622517 U CN 220622517U
- Authority
- CN
- China
- Prior art keywords
- cover
- sealing
- dust
- rotor
- sliding bearing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000007789 sealing Methods 0.000 title claims abstract description 50
- 239000000428 dust Substances 0.000 claims abstract description 47
- 230000000694 effects Effects 0.000 abstract description 8
- 230000002265 prevention Effects 0.000 abstract description 6
- 238000009434 installation Methods 0.000 abstract description 3
- 230000009545 invasion Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
- Sealing Devices (AREA)
Abstract
The utility model relates to a sealing structure for a sliding bearing, which comprises a dust cover, a sealing end cover, a hexagonal bolt, a gasket, a sealing gasket and a bearing seat, wherein the dust cover is arranged on a rotor, and centrifugal force is generated when the rotor rotates to prevent external dust and moisture from invading; the dustproof cover is combined with the inner sealing end cover to play roles in oil leakage prevention and dust prevention, and the utility model has the characteristics of simple structure, obvious sealing effect, convenient installation and the like.
Description
Technical Field
The utility model relates to the technical field of sliding bearings, in particular to a sealing structure for a sliding bearing.
Background
The sliding bearing dust cover has a dust-proof effect, can reduce sundries such as dust and the like from entering the bearing, so that the inside of the bearing is dust-proof and rust-proof, and the service life of the bearing is prolonged. The structure of the common dust cover is shown in figure 3 of the specification, and is arranged on a bearing seat, the sealing effect of the common dust cover depends on the gap between the inner diameter of the dust cover and the diameter of a rotor, and the smaller the gap is, the better the sealing effect is, but the smaller the rotating speed of a shaft is allowed; a dust cover design which is convenient to install and better in sealing effect is needed.
Disclosure of Invention
Aiming at the defects existing in the prior art, the utility model aims to design a combined sealing structure for a sliding bearing, which has the advantages of simple structure, obvious effect and convenient installation, and the technical scheme of the utility model is realized as follows:
the technical scheme for solving the technical problems is as follows:
a sealing structure for a sliding bearing is characterized in that a dust cover is arranged on a rotor close to a bearing seat, and the dust cover is in clearance fit with the rotor.
Further, the dust cover comprises a circular ring part and an extension part, the inner wall of the circular ring part is in clearance-free fit with the rotor, the extension part is close to one end of the dust cover at the circular ring part and extends outwards to form a conical surface, and the dust cover covers a clearance between the rotor and the bearing seat.
Further, a sealing end cover is arranged on the bearing seat at the rear end of the dustproof cover, the inner end of the sealing end cover is in clearance fit with the rotor, and the front end of the sealing end cover is in clearance fit with the dustproof cover.
Further, a plurality of groups of sealing rings are arranged at the contact position of the inner end of the sealing end cover and the rotor, and sealing gaps are arranged between the plurality of groups of sealing rings.
Further, a dust ring is arranged on the outer side of the sealing end cover corresponding to the dust cover, and the height of the dust ring is equal to the height of the extension part.
Further, the sealing end cover is mounted on the bearing seat through a sealing gasket, a gasket and a hexagonal bolt.
Compared with the prior art, the utility model has the beneficial effects that: according to the sealing structure for the sliding bearing, the dust cover is directly arranged on the rotor, no gap exists between the dust cover and the rotor, and when the sliding bearing runs, the rotor and the dust cover rotate to generate centrifugal force, so that invasion of external dust and moisture is prevented; meanwhile, the dustproof cover is matched with the sealing end cover on the inner side, so that the sealing effect of oil leakage prevention and dust prevention is achieved. The utility model has simple structure, optimized sealing effect and convenient installation.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present utility model;
FIG. 2 is an enlarged partial view of an embodiment of the present utility model;
fig. 3 shows a prior art dust cap according to the present utility model.
Reference numerals: 1. the anti-dust device comprises a dust cover, an annular part, an extension part, a sealing end cover, a sealing ring, a sealing gap, a dust ring, a hexagonal bolt, a gasket, a sealing gasket, a bearing seat and a rotor.
Detailed Description
The following description of the embodiments of the present utility model refers to the accompanying drawings, which are not intended to limit the utility model, but are included in the scope of the utility model.
As shown in fig. 1 and 2, a sealing structure for a sliding bearing is provided, a dust cover 1 is mounted on a rotor 7 near a bearing seat 6, the dust cover 1 comprises a circular ring part 11 and an extension part 12, the inner wall of the circular ring part 11 is in clearance fit with the rotor 7, the extension part 12 is arranged at one end of the circular ring part 11 near the dust cover and extends outwards to form a conical surface, and the dust cover 1 covers a gap between the rotor 7 and the bearing seat 6; in operation, the rotor 7 and the dust cover 1 rotate to generate centrifugal force, thereby preventing invasion of external dust and moisture.
The sealing end cover 2 is arranged on the bearing seat 6 at the rear end of the dust cover 1, and the sealing end cover 2 is arranged on the bearing seat 6 through the sealing gasket 5, the gasket 4 and the hexagonal bolt 3. The inner end of the sealing end cover 2 is in clearance fit with the rotor 7, a plurality of groups of sealing rings 21 are arranged at the contact part of the inner end of the sealing end cover 2 and the rotor 7, and sealing gaps 22 are arranged between the plurality of groups of sealing rings 21, so that oil leakage can be prevented; the front end of the seal end cover 2 is in clearance fit with the dust cover 1, a dust ring 23 is arranged on the outer side of the seal end cover 2 corresponding to the dust cover 1, the height of the dust ring 23 is equal to the height of the extension part 12, and the seal end cover 1 and the inner side seal end cover 2 are matched with each other to play roles in oil leakage prevention and dust prevention.
The foregoing is merely illustrative of specific embodiments of the present utility model, and the scope of the utility model is not limited thereto, but any changes or substitutions that do not undergo the inventive effort should be construed as falling within the scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope defined by the claims.
Claims (5)
1. A seal structure for slide bearing, characterized in that: a dust cover (1) is arranged on the rotor (7) close to the bearing seat (6), and the dust cover (1) is in clearance fit with the rotor (7);
the dustproof cover (1) comprises a circular ring part (11) and an extension part (12), wherein the inner wall of the circular ring part (11) is in clearance-free fit with the rotor (7), the extension part (12) is close to one end of the dustproof cover at the circular ring part (11) and extends outwards to form a conical surface, and the dustproof cover (1) covers a clearance between the rotor (7) and the bearing seat (6).
2. A seal structure for a sliding bearing according to claim 1, characterized in that: the anti-dust device is characterized in that a sealing end cover (2) is arranged on a bearing seat (6) at the rear end of the anti-dust cover (1), the inner end of the sealing end cover (2) is in clearance fit with a rotor (7), and the front end of the sealing end cover (2) is in clearance fit with the anti-dust cover (1).
3. A seal structure for a sliding bearing according to claim 2, characterized in that: a plurality of groups of sealing rings (21) are arranged at the contact position of the inner end of the sealing end cover (2) and the rotor (7), and sealing gaps (22) are arranged between the plurality of groups of sealing rings (21).
4. A seal structure for a sliding bearing according to claim 3, characterized in that: the sealing end cover (2) is provided with a dust ring (23) corresponding to the outer side of the dust cover (1), and the height of the dust ring (23) is equal to the height of the extension part (12).
5. The seal structure for a sliding bearing according to claim 4, characterized in that: the sealing end cover (2) is arranged on the bearing seat (6) through the sealing gasket (5), the gasket (4) and the hexagonal bolt (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322109815.0U CN220622517U (en) | 2023-08-08 | 2023-08-08 | Sealing structure for sliding bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322109815.0U CN220622517U (en) | 2023-08-08 | 2023-08-08 | Sealing structure for sliding bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220622517U true CN220622517U (en) | 2024-03-19 |
Family
ID=90232280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322109815.0U Active CN220622517U (en) | 2023-08-08 | 2023-08-08 | Sealing structure for sliding bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220622517U (en) |
-
2023
- 2023-08-08 CN CN202322109815.0U patent/CN220622517U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |