CN221195766U - Sealing ring structure for improving air pressure in bearing grease lubrication - Google Patents
Sealing ring structure for improving air pressure in bearing grease lubrication Download PDFInfo
- Publication number
- CN221195766U CN221195766U CN202323282517.8U CN202323282517U CN221195766U CN 221195766 U CN221195766 U CN 221195766U CN 202323282517 U CN202323282517 U CN 202323282517U CN 221195766 U CN221195766 U CN 221195766U
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- Prior art keywords
- ring
- sealing lip
- sealing
- air pressure
- bearing
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- 238000007789 sealing Methods 0.000 title claims abstract description 63
- 239000004519 grease Substances 0.000 title claims abstract description 41
- 238000005461 lubrication Methods 0.000 title claims abstract description 13
- 239000000758 substrate Substances 0.000 claims abstract description 9
- 238000002347 injection Methods 0.000 abstract description 11
- 239000007924 injection Substances 0.000 abstract description 11
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000005096 rolling process Methods 0.000 abstract 1
- 230000001050 lubricating effect Effects 0.000 description 4
- 239000000428 dust Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000001502 supplementing effect Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Rolling Contact Bearings (AREA)
Abstract
The utility model discloses a sealing ring structure for improving the air pressure in bearing grease lubrication, which comprises an inner ring, an outer ring and a plurality of rolling pins arranged between the inner ring and the outer ring, wherein a retainer ring is respectively arranged between the two axial ends of the inner ring and the outer ring, a sealing ring is arranged between the retainer ring and the outer ring, a grease injection hole is arranged on the inner ring, the sealing ring comprises an annular substrate, a first sealing lip arranged at one axial end of the annular substrate and a second sealing lip arranged at the other axial end of the annular substrate, the first sealing lip is abutted against the outer ring, the second sealing lip is abutted against the retainer ring, and a plurality of exhaust ports are arranged on the circumference of the second sealing lip. The sealing ring structure for improving the air pressure in the lubrication of the bearing grease is convenient for grease injection, and can improve the maintenance efficiency and the service life of the bearing.
Description
Technical Field
The utility model relates to the technical field of bearings, in particular to a sealing ring structure for improving the air pressure in bearing grease lubrication.
Background
The function of grease in bearings is to reduce friction and wear, reduce the temperature of the bearings, prevent corrosion and oxidation, and provide sealing and dust protection. As the bearings run, the grease becomes depleted or spoiled, thus requiring periodic inspection and replenishment of the grease.
In the prior art, in order to reduce the loss of lubricating grease as much as possible, most bearings are provided with a sealing ring structure, the radial outer end of the sealing ring is abutted against the outer ring, and the radial inner end of the sealing ring is arranged between the gap of the outer ring and the check ring. Although the conventional sealing ring reduces the loss of lubricating grease to a certain extent and prolongs the grease supplementing period, because the sealing performance of the sealing piece is good, the inner space of the bearing forms a closed space, so that when the grease filling hole on the inner ring of the bearing supplements grease, the air pressure inside the bearing is larger than the external air pressure, the grease supplementing is difficult, the lubricating grease which can be supplemented is very limited, and the standard requirement of normal grease filling of the bearing cannot be met, thereby influencing the normal maintenance and the service life of the bearing.
The present utility model has been made in order to solve the above-mentioned problems.
Disclosure of utility model
The utility model aims to provide a sealing ring structure for improving the air pressure in bearing grease lubrication, which is convenient for grease injection and ensures the sealing performance.
Based on the problems, the technical scheme provided by the utility model is as follows:
The sealing ring structure for improving the air pressure in bearing grease lubrication comprises an inner ring, an outer ring and a plurality of needle rollers arranged between the inner ring and the outer ring, wherein a retainer ring is respectively arranged between the two axial ends of the inner ring and the outer ring, a sealing ring is arranged between the retainer ring and the outer ring, a grease injection hole is arranged on the inner ring,
The sealing ring comprises an annular substrate, a first sealing lip arranged at one axial end of the annular substrate and a second sealing lip arranged at the other axial end of the annular substrate, wherein the first sealing lip is abutted to the outer ring, the second sealing lip is abutted to the retainer ring, and a plurality of exhaust ports are arranged on the periphery of the second sealing lip.
In some embodiments, the exhaust port is a recess extending from the inner ring to the outer ring.
In some embodiments, the exhaust port is arcuate.
In some of these embodiments, the outer ring is provided radially inward with a limit groove matching the first sealing lip.
In some of these embodiments, the second sealing lip is provided with two exhaust ports in the circumferential direction and is arranged on both radial sides of the second sealing lip.
Compared with the prior art, the utility model has the advantages that:
The second sealing lip in the inner diameter direction of the sealing ring is provided with a plurality of exhaust ports which can be communicated with the external environment and the grease injection holes in the inner ring, so that the non-complete sealing state of the inner space of the bearing is ensured on the basis of ensuring the dust prevention and the water prevention of the sealing ring and keeping the lubricating grease, the conditions of airtight inside the bearing and difficult grease injection are improved, and the maintenance of the bearing is facilitated.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, in which the drawings are only some embodiments of the present utility model, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of an embodiment of a seal ring structure for improving the air pressure in lubrication of bearing grease according to the present utility model;
FIG. 2 is a schematic view of a partial structure of an embodiment of the present utility model;
FIG. 3 is a schematic structural view of a seal ring according to an embodiment of the present utility model;
Wherein:
1. An inner ring; 1-1, injecting grease holes;
2. An outer ring; 2-1, a limiting groove;
3. A retainer ring;
4. A seal ring; 4-1, an annular matrix; 4-2, a first sealing lip; 4-3, a second sealing lip; 4-3a, exhaust port;
5. Needle roller;
A. The gas flows.
Detailed Description
The above-described aspects are further described below in conjunction with specific embodiments. It should be understood that these examples are illustrative of the present utility model and are not intended to limit the scope of the present utility model. The implementation conditions used in the examples may be further adjusted according to the conditions of the specific manufacturer, and the implementation conditions not specified are generally those in routine experiments.
As shown in fig. 1 to 3, in an embodiment of the present utility model, a seal ring structure for improving the air pressure inside lubrication of bearing grease is provided, which includes an inner ring 1, an outer ring 2, and a plurality of needle rollers 5 disposed between the inner ring 1 and the outer ring 2, wherein a retainer ring 3 is disposed between two ends of the inner ring 1 and the outer ring 2, a seal ring 4 is disposed between the retainer ring 3 and the outer ring 2, a grease injection hole 1-1 is disposed on the inner ring 1, and grease is injected into the bearing through the grease injection hole 1-1.
Because sealing washer 4 leakproofness is better, the inside sealed space that is of bearing, lead to annotating the fat difficulty, in order to solve this problem, the structure to sealing washer 4 has improved, concretely, sealing washer 4 includes annular base member 4-1, set up the first sealing lip 4-2 of annular base member 4-1 axial one end and set up the second sealing lip 4-3 of annular base member 4-1 axial other end, wherein, first sealing lip 4-2 and outer lane 2 butt, second sealing lip 4-3 and retaining ring 2 butt, be equipped with a plurality of gas vent 4-3a in second sealing lip 4-3 circumference, thereby, annotate fat hole 1-1 on inner lane 1 communicates to gas vent 4-3a through the clearance of kingpin 5 periphery, in order to communicate to external environment, make the inside non-airtight state that keeps of bearing, be convenient for annotate fat.
In this example, a limit groove 2-1 matching with a first seal lip 4-2 is provided on the radially inner side of the outer ring 2, and a second seal lip 4-3 abuts against the outer periphery of the retainer ring 3.
In this example, two exhaust ports 4-3a are circumferentially arranged on the second sealing lip 4-3, and they are arranged on two radial sides of the second sealing lip 4-3, and the arrangement of the two exhaust ports 4-3a can ensure the tightness of the sealing ring, and simultaneously, the inside of the bearing is kept in a non-fully sealed state, so that grease injection is facilitated.
Specifically, the exhaust port 4-3a is a recess extending from the inner ring 1 toward the outer ring 2, and in this example, the recess is provided as an arcuate recess.
When grease is injected into the grease injection hole 1-1 on the inner ring 1, the gas in the bearing is discharged to the external environment (shown as A in fig. 2) through the gap at the periphery of the needle roller 5, the gap between the retainer ring 3 and the needle roller 5 and the air outlet 14-3a on the sealing ring 4, so that the inside of the bearing is kept in a non-complete sealing state, the grease injection is convenient, the tightness of the bearing is ensured, and the maintenance of the bearing is convenient.
In conclusion, the sealing ring structure is convenient for injecting grease, is convenient for maintaining the bearing, and prolongs the service life.
The above examples are provided for illustrating the technical concept and features of the present utility model and are intended to enable those skilled in the art to understand the contents of the present utility model and to implement the same, and are not intended to limit the scope of the present utility model. All equivalent changes or modifications made according to the spirit of the present utility model should be included in the scope of the present utility model.
Claims (5)
1. The utility model provides an improve bearing grease lubricated internal air pressure's sealing washer structure, is in including inner circle, outer lane and setting a plurality of kingpins between inner circle and the outer lane, the axial both ends of inner circle with be equipped with the retaining ring between the outer lane respectively, the retaining ring with be equipped with the sealing washer between the outer lane, be equipped with the notes fat hole on the inner circle, its characterized in that:
The sealing ring comprises an annular substrate, a first sealing lip arranged at one axial end of the annular substrate and a second sealing lip arranged at the other axial end of the annular substrate, wherein the first sealing lip is abutted to the outer ring, the second sealing lip is abutted to the retainer ring, and a plurality of exhaust ports are arranged on the periphery of the second sealing lip.
2. The seal ring structure for improving the air pressure in bearing grease lubrication according to claim 1, wherein: the exhaust port is a notch extending from the inner ring to the outer ring.
3. The seal ring structure for improving the air pressure in bearing grease lubrication according to claim 2, wherein: the exhaust port is arc-shaped.
4. The seal ring structure for improving the air pressure in bearing grease lubrication according to claim 1, wherein: and a limiting groove matched with the first sealing lip is formed in the radial inner side of the outer ring.
5. The seal ring structure for improving the air pressure in bearing grease lubrication according to claim 1, wherein: the second sealing lip is circumferentially provided with two exhaust ports and is arranged on two radial sides of the second sealing lip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323282517.8U CN221195766U (en) | 2023-12-04 | 2023-12-04 | Sealing ring structure for improving air pressure in bearing grease lubrication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323282517.8U CN221195766U (en) | 2023-12-04 | 2023-12-04 | Sealing ring structure for improving air pressure in bearing grease lubrication |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221195766U true CN221195766U (en) | 2024-06-21 |
Family
ID=91515020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323282517.8U Active CN221195766U (en) | 2023-12-04 | 2023-12-04 | Sealing ring structure for improving air pressure in bearing grease lubrication |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221195766U (en) |
-
2023
- 2023-12-04 CN CN202323282517.8U patent/CN221195766U/en active Active
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|---|---|---|---|
| GR01 | Patent grant |