CN219492876U - Bearing box sealing structure for sliding bearing - Google Patents
Bearing box sealing structure for sliding bearing Download PDFInfo
- Publication number
- CN219492876U CN219492876U CN202320448866.3U CN202320448866U CN219492876U CN 219492876 U CN219492876 U CN 219492876U CN 202320448866 U CN202320448866 U CN 202320448866U CN 219492876 U CN219492876 U CN 219492876U
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- bearing
- end cover
- shaft
- oil
- bearing end
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Abstract
The utility model relates to a bearing box sealing structure for a sliding bearing, which comprises an oil retainer ring, a dustproof disc, a bearing end cover and a shaft; the oil retainer is fastened on the bearing end cover, and a cooling cavity is formed by the oil retainer and the bearing end cover; the oil retainer has a certain gap with the shaft to form a first seal; the inner diameter of the bearing end cover is provided with a tooth slot, a certain gap is formed between the bearing end cover and the dustproof disc, and labyrinth seal is formed and is a second seal; the dustproof disc and the shaft are fixed together, the dustproof disc rotates along with the shaft, and a sealing ring is arranged between the dustproof disc and the shaft. According to the utility model, the oil retainer ring is additionally arranged to form two sealing structures, and the cooling cavity is additionally arranged in the two sealing structures, so that oil leakage caused by outward escape of high-temperature oil mist is effectively avoided. Through double seal structure, realize preventing that fluid from revealing and polluting the purpose of factory building.
Description
Technical Field
The utility model relates to a bearing box sealing structure, in particular to a bearing box sealing structure for a sliding bearing, which is characterized in that two sealing structures are formed by additionally arranging an oil retainer, and a cooling cavity is additionally arranged in the two sealing structures, so that oil leakage caused by outward escape of high-temperature oil mist is effectively avoided.
Background
Bearing components are extremely widely used in the field of industrial pumps. During operation of the pump, the bearing shells of the bearing components require oil lubrication. As shown in fig. 1, the lower part of the oil slinger is immersed in an oil tank, and when the shaft rotates, the drag force of the oil slinger causes the oil slinger to rotate, so that the oil in the oil tank is carried up and splashed around the bearing bush, and the lubricating effect is achieved. The oil slinger is driven by the shaft to rotate, so that the oil in the cavity is continuously acted, the oil temperature is continuously increased to generate oil mist, the generated oil mist is outwards diffused through the labyrinth seal, the temperature is reduced when the labyrinth seal is close to the outer side, and the liquefaction phenomenon occurs. The continuous liquefaction phenomenon causes oil to leak outside the bearing, so that the leakage phenomenon of bearing lubricating oil is generated, and a factory building is polluted. The continuous leakage results in a reduction of the oil level in the oil tank, affecting the lubrication effect of the bearing shell. The oil tank needs to be constantly replenished with lubricating oil to ensure the oil level.
Disclosure of Invention
The bearing box sealing structure for the sliding bearing is characterized in that the oil retainer is additionally arranged to form two sealing structures, and a cooling cavity is additionally arranged in the two sealing structures, so that oil leakage caused by outward escape of high-temperature oil mist is effectively avoided.
The utility model solves the technical problems by the following scheme: a bearing housing seal arrangement for a slide bearing, characterized in that: the bearing housing seal structure for a slide bearing includes: oil retainer, dustproof disk, bearing end cover, axle.
The oil retainer is fastened on the bearing end cover, and the oil retainer and the bearing end cover form a cooling cavity.
The oil retainer has a certain gap with the shaft to form a first seal; the inner diameter of the bearing end cover is provided with a tooth slot, and a certain gap is formed between the bearing end cover and the dustproof disc, so that labyrinth seal is formed, and the bearing end cover is sealed for the second time.
The dustproof disc and the shaft are fixed together, the dustproof disc rotates along with the shaft, and a sealing ring is arranged between the dustproof disc and the shaft.
In a specific embodiment of the present utility model, the slinger is bolted to the bearing end cap.
In a specific embodiment of the present utility model, a first drain hole is provided directly below the slinger.
In a specific embodiment of the present utility model, a second drain hole is provided directly below the bearing end cap.
In the specific embodiment of the utility model, the dustproof disc and the shaft are fastened together by a set screw in transition fit.
In a specific embodiment of the present utility model, the clearance between the slinger and the shaft is in the range of 0.1 to 0.5mm.
In a specific embodiment of the present utility model, the clearance between the inner diameter dust-proof disks of the bearing end caps is in the range of 0.1-0.5mm.
The utility model has the positive progress effects that: according to the bearing box sealing structure for the sliding bearing, provided by the utility model, two sealing structures are formed by additionally arranging the oil retainer, and the cooling cavity is additionally arranged in the two sealing structures, so that oil leakage caused by outward escape of high-temperature oil mist is effectively avoided. Through double seal structure, realize preventing that fluid from revealing and polluting the purpose of factory building.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present utility model.
Fig. 2 is a partial enlarged view of fig. 1.
The following are names corresponding to the reference numerals in the present utility model:
the bearing comprises a bearing end cover 1, a dustproof disc 2, a bolt 3, a oil retainer 4, a shaft 5, a sealing ring 6 and a tooth socket 7.
Detailed Description
The following description of the preferred embodiments of the present utility model is given with reference to the accompanying drawings, so as to explain the technical scheme of the present utility model in detail.
Fig. 1 is a schematic overall structure of the present utility model, and fig. 2 is a partial enlarged view of fig. 1, as shown in fig. 1-2: the utility model provides a bearing box sealing structure for a sliding bearing, which comprises the following components: the oil retainer 4, the dustproof disc 2, the bearing end cover 1 and the shaft 5; the oil retainer 4 is fastened on the bearing end cover 1, and the oil retainer 4 and the bearing end cover 1 form a cooling cavity; the oil retainer 4 has a certain clearance with the shaft 5 to form a first seal; the inner diameter of the bearing end cover 1 is provided with tooth grooves 7, a certain gap is formed between the bearing end cover and the dustproof disc 2, and labyrinth seal is formed and is a second seal; the dustproof disc 2 rotates along with the shaft, and a sealing ring 6 is arranged between the dustproof disc 2 and the shaft 5.
In a specific implementation process, the oil retainer 4 is fastened on the bearing end cover 1 by using the bolt 3, the bearing end cover is of an integral structure, a first drain hole is arranged under the oil retainer 4, a second drain hole is arranged under the bearing end cover 1, and the dust-proof disc 2 is fastened with the shaft 5 by using a set screw in a transition fit manner. The dustproof disc rotates along with the shaft, and a sealing ring is arranged between the dustproof disc and the shaft. The bearing end cover and the dustproof disc are aligned and arranged close to the bearing bush side. The inner diameter of the bearing end cover is provided with a rectangular tooth slot, and a certain gap is reserved between the bearing end cover and the dustproof disc, so that labyrinth seal is formed. A drain hole (not shown) is provided directly below the slinger. And a drain hole is also arranged right below the bearing end cover. During rotation of the shaft, only a small amount of oil mist enters the cooling cavity formed by the oil retainer and the bearing end cover through the first seal, and most of the oil mist in the cooling cavity is liquefied and discharged into the bearing cavity through a drain hole below the oil retainer. The remaining small part of oil mist gradually reduces in speed and temperature during the second sealing of the labyrinth seal between the bearing end cover and the dust-proof disc, and liquid generated by liquefying the oil mist is discharged into the bearing cavity along with the drain hole below. The oil mist is reduced in speed, so that the sealing effect can be achieved when the oil mist passes through the labyrinth seal.
In the specific embodiment of the utility model, the oil retainer is fastened to the bearing end cap by 4 bolts, which are arranged over the center. The oil retainer and the bearing end cover form a cooling cavity.
In the specific implementation example of the utility model, the oil retainer and the shaft have a certain gap to form a first seal, and the size of the gap is determined according to practical conditions. In a specific implementation, the following gap ranges may be employed: the clearance between the slinger 4 and the shaft 5 is in the range of 0.1-0.5mm. The gap between the inner diameter dust-proof disks 2 of the bearing end cap 1 is in the range of 0.1-0.5mm.
According to the utility model, the oil retainer ring is additionally arranged to form two sealing structures, and the cooling cavity is additionally arranged in the two sealing structures, so that oil leakage caused by outward escape of high-temperature oil mist is effectively avoided. Through double seal structure, realize preventing that fluid from revealing and polluting the purpose of factory building.
The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the foregoing embodiments, which have been described in the foregoing embodiments and description merely illustrates the principles of the utility model, and that various changes and modifications may be effected therein without departing from the spirit and scope of the utility model as defined in the appended claims and their equivalents.
Claims (7)
1. A bearing housing seal arrangement for a slide bearing, characterized in that: the bearing housing seal structure for a slide bearing includes: oil slinger, dust-proof disc, bearing end cover and shaft;
the oil retainer is fastened on the bearing end cover, and a cooling cavity is formed by the oil retainer and the bearing end cover;
the oil retainer has a certain gap with the shaft to form a first seal; the inner diameter of the bearing end cover is provided with a tooth slot, a certain gap is formed between the bearing end cover and the dustproof disc, and labyrinth seal is formed and is a second seal;
the dustproof disc and the shaft are fixed together, the dustproof disc rotates along with the shaft, and a sealing ring is arranged between the dustproof disc and the shaft.
2. The bearing housing seal arrangement for a slide bearing according to claim 1, wherein: the oil retainer is fastened on the bearing end cover by bolts.
3. The bearing housing seal arrangement for a slide bearing according to claim 1, wherein: a first drain hole is arranged right below the oil retainer.
4. The bearing housing seal arrangement for a slide bearing according to claim 1, wherein: and a second drain hole is arranged right below the bearing end cover.
5. The bearing housing seal arrangement for a slide bearing according to claim 1, wherein: the dustproof disc is in transition fit with the shaft and is fastened together by a set screw.
6. The bearing housing seal arrangement for a slide bearing according to claim 1, wherein: the clearance between the slinger and the shaft ranges from 0.1 to 0.5mm.
7. The bearing housing seal arrangement for a slide bearing according to claim 1, wherein: the gap between the inner diameter dustproof plates of the bearing end cover is in the range of 0.1-0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320448866.3U CN219492876U (en) | 2023-03-10 | 2023-03-10 | Bearing box sealing structure for sliding bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320448866.3U CN219492876U (en) | 2023-03-10 | 2023-03-10 | Bearing box sealing structure for sliding bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219492876U true CN219492876U (en) | 2023-08-08 |
Family
ID=87484378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320448866.3U Active CN219492876U (en) | 2023-03-10 | 2023-03-10 | Bearing box sealing structure for sliding bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219492876U (en) |
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2023
- 2023-03-10 CN CN202320448866.3U patent/CN219492876U/en active Active
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