CN215762801U - Sealed cylindrical roller bearing - Google Patents
Sealed cylindrical roller bearing Download PDFInfo
- Publication number
- CN215762801U CN215762801U CN202121996513.4U CN202121996513U CN215762801U CN 215762801 U CN215762801 U CN 215762801U CN 202121996513 U CN202121996513 U CN 202121996513U CN 215762801 U CN215762801 U CN 215762801U
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- Prior art keywords
- ring
- sealing
- cylindrical roller
- roller bearing
- inner ring
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- 238000007789 sealing Methods 0.000 claims abstract description 71
- 229920001971 elastomer Polymers 0.000 claims abstract description 21
- 229920000459 Nitrile rubber Polymers 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 230000007704 transition Effects 0.000 claims description 4
- 238000009434 installation Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 238000001514 detection method Methods 0.000 abstract 1
- 239000000314 lubricant Substances 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 2
- 231100000719 pollutant Toxicity 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
- 238000007429 general method Methods 0.000 description 1
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- Rolling Contact Bearings (AREA)
Abstract
A sealed cylindrical roller bearing relates to the technical field of bearing detection, and comprises an inner ring, an outer ring and a single-row cylindrical roller arranged between the inner ring and the outer ring through a retainer, wherein two sealing structures positioned between the inner ring and the outer ring are symmetrically arranged outside two ends of the retainer; the sealing structure comprises a sealing ring frame and a rubber ring fixed on the inner ring surface of the sealing ring frame; the outer ring surface of the sealing ring frame is abutted against the corresponding inner ring surface of the outer ring for sealing and positioning, so that gaps are reserved between the inner end and the outer end of the sealing structure and the planes of the corresponding end surfaces of the retainer and the outer ring respectively; two lip edges for abutting against the corresponding outer ring surface of the sealing inner ring are symmetrically arranged at two ends of the inner ring surface of the rubber ring, and a plurality of annular grooves are arranged in parallel on the inner ring surface of the rubber ring between the two lip edges; the sealing cylindrical roller bearing ensures the sealing effect, and meanwhile, the sealing structure is stable in installation and not easy to damage.
Description
Technical Field
The utility model relates to the technical field of bearings, in particular to a sealed cylindrical roller bearing.
Background
The bearing is a precision mechanical basic part, and strict sealing is mostly needed to prevent pollution in application; the general method in engineering is that a sealing structure is arranged on a bearing seat, and the bearing is open (not provided with sealing); but under the working condition of serious pollution, the bearing is required to be provided with a seal; in the field of bearings, sealing can be increased when the number of rollers of a cylindrical roller bearing is more than or equal to 2 rows, and a single-row cylindrical roller bearing is generally not provided with a sealing structure; the reason is that the single-row cylindrical roller bearing is generally a separable bearing, i.e. each part of the bearing can be easily disassembled on the installation site, and the sealing damage is very easy to cause.
Disclosure of Invention
In order to overcome the defects in the background art, the utility model discloses a sealed cylindrical roller bearing, which ensures the sealing effect, ensures the stable installation of a sealing structure and is not easy to damage.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a sealed cylindrical roller bearing comprises an inner ring, an outer ring and a single-row cylindrical roller arranged between the inner ring and the outer ring through a retainer, wherein two sealing structures positioned between the inner ring and the outer ring are symmetrically arranged outside two ends of the retainer; the sealing structure comprises a sealing ring frame and a rubber ring fixed on the inner ring surface of the sealing ring frame; the outer ring surface of the sealing ring frame is abutted and positioned with the corresponding inner ring surface of the outer ring, so that gaps are reserved between the inner end and the outer end of the sealing structure and the planes of the corresponding end surfaces of the retainer and the outer ring respectively; two lip edges used for abutting against the corresponding outer ring surface of the sealing inner ring are symmetrically arranged at two ends of the inner ring surface of the rubber ring, and a plurality of annular grooves are arranged in parallel on the inner ring surface of the rubber ring between the two lip edges.
Furthermore, two outer ring flanges are respectively arranged at two ends of the inner ring surface of the outer ring, an inner ring flange is arranged at one end of the inner ring surface of the inner ring, and a movable check ring is detachably arranged at the other end of the inner ring.
Furthermore, an avoiding ring groove is formed in the inner end face of the sealing ring frame, so that the cross section of the sealing ring frame is in an Contraband-shaped structure.
Further, the sealing ring frame is made of steel plate materials.
Furthermore, the sealing ring frame and the outer ring are in interference fit or transition fit.
Furthermore, the cross section of the rubber ring is designed into an L-shaped structure which is attached and fixed on the outer end surface and the inner ring surface of the sealing ring frame.
Further, the rubber ring is made of nitrile rubber.
Further, the annular grooves are three in number.
Further, the section of the annular groove is semicircular.
Furthermore, the clearance between the sealing structure and the plane where the corresponding end face of the outer ring is located is larger than 0mm and smaller than 2 mm.
Due to the adoption of the technical scheme, the utility model has the following beneficial effects:
according to the sealed cylindrical roller bearing disclosed by the utility model, the sealing ring frame is directly abutted against the outer ring for positioning, so that the stability of the sealing structure is ensured, the sealing structure is not easy to damage, the use is convenient, and the disassembly, assembly and replacement are not hindered; the sealing layout structure of the double lips and the grooves arranged on the rubber ring enhances the sealing effect, can effectively prevent the lubricant from flowing outwards, and simultaneously prevents external pollutants from entering the inside of the bearing; in conclusion, the utility model solves the problem that the single-row separable cylindrical roller bearing is provided with a sealing structure.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is a schematic structural view of the seal structure;
fig. 3 is a schematic view of the installation gap of the seal structure.
In the figure: 1. an outer ring; 101. an outer ring flange; 2. a cylindrical roller; 3. a holder; 4. an inner ring; 401. the inner ring is provided with a flange; 5. a sealing structure; 501. a seal ring frame; 502. a rubber ring; 503. a lip; 504. an annular groove; 505. avoiding the ring groove; 6. a movable retainer ring.
Detailed Description
In the following description, the technical solutions of the present invention will be described with reference to the drawings of the embodiments of the present invention, and it should be understood that, if there is an orientation or positional relationship indicated by terms such as "upper", "lower", "front", "rear", "left", "right", etc., it is only corresponding to the drawings of the present invention, and for convenience of describing the present invention, it is not necessary to indicate or imply that the indicated devices or elements have a specific orientation:
the sealed cylindrical roller bearing described with reference to fig. 1-3 comprises an inner ring 4, an outer ring 1, and a single-row cylindrical roller 2 mounted between the inner ring 4 and the outer ring 1 through a retainer 3, wherein two sealing structures 5 located between the inner ring 4 and the outer ring 1 are symmetrically arranged outside two ends of the retainer 3; according to the requirements, two outer ring flanges 101 are respectively arranged at two ends of the inner ring surface of the outer ring 1, the two outer ring flanges 101 are used for axially limiting the cylindrical roller 2, an inner ring flange 401 is arranged at one end of the inner ring surface of the inner ring 4, a movable check ring 6 is detachably arranged at the other end of the inner ring 4, the inner ring flange 401 and the movable check ring 6 are also used for axially limiting the cylindrical roller 2, the movable check ring 6 is arranged to facilitate the disassembly and assembly of the bearing, and at the moment, the sealing structure 5 corresponding to the position of the movable check ring 6 is required to be positioned between the outer ring 1 and the movable check ring 6;
the sealing structure 5 comprises a sealing ring frame 501 and a rubber ring 502 fixed on the inner annular surface of the sealing ring frame 501, wherein the sealing ring frame 501 is made of a steel plate material, the rubber ring 502 is made of nitrile rubber, and the nitrile rubber is bonded with the steel plate as required; the outer ring surface of the sealing ring frame 501 is abutted against the corresponding inner ring surface of the outer ring 1 for sealing and positioning, so that gaps are reserved between the inner end and the outer end of the sealing structure 5 and the planes of the corresponding end surfaces of the retainer 3 and the outer ring 1 respectively, the sealing structure 5 is not contacted with the retainer 3 and is not easily touched by other external parts while being stably installed, and collision damage cannot be easily caused; according to the requirement, an avoiding ring groove 505 is arranged on the inner end surface of the sealing ring frame 501, so that the section of the sealing ring frame 501 is in an Contraband-shaped structure, and the Contraband-shaped structure has certain elasticity, so that the sealing ring frame is convenient to mount and dismount, and meanwhile, the material and the mounting space are saved; in addition, the sealing ring frame 501 and the outer ring 1 are in interference fit or transition fit, the interference fit can enable the installation and the positioning to be more stable, and the transition fit is more convenient to disassemble and assemble; in addition, the clearance between the sealing structure 5 and the plane of the corresponding end surface of the outer ring 1 is larger than 0mm and smaller than 2mm, so that the sealing structure 5 is prevented from being installed too deeply;
two lips 503 for abutting against the corresponding outer ring surface of the sealing inner ring 4 are symmetrically arranged at two ends of the inner ring surface of the rubber ring 502, a plurality of annular grooves 504 are arranged in parallel on the inner ring surface of the rubber ring 502 between the two lips 503, a lubricant can be stored in the annular grooves 504, the sealing effect is enhanced due to the arrangement of the double lips 503 and the annular grooves 504, the lubricant is prevented from flowing outwards, and external pollutants are prevented from entering the inside of the bearing; according to the requirement, the cross section of the rubber ring 502 is designed to be an L-shaped structure which is attached and fixed on the outer end surface and the inner ring surface of the sealing ring frame 501, so that the rubber ring 502 and the sealing ring frame 501 can be connected and fastened; further, the annular grooves 504 are semicircular in cross section and three are provided.
The utility model is not described in detail in the prior art, and it is apparent to a person skilled in the art that the utility model is not limited to details of the above-described exemplary embodiments, but that the utility model can be embodied in other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the scope of the claims concerned.
Claims (10)
1. The utility model provides a sealed cylindrical roller bearing, contains inner circle (4), outer lane (1) to and install single-row cylindrical roller (2) between inner circle (4) and outer lane (1) through holder (3), the both ends external symmetry of holder (3) is equipped with two seal structure (5) that are located between inner circle (4) and outer lane (1), characterized by: the sealing structure (5) comprises a sealing ring frame (501) and a rubber ring (502) fixed on the inner ring surface of the sealing ring frame (501); the outer ring surface of the sealing ring frame (501) is abutted against the corresponding inner ring surface of the outer ring (1) for positioning, so that gaps are reserved between the inner end and the outer end of the sealing structure (5) and the planes of the corresponding end surfaces of the retainer (3) and the outer ring (1) respectively; two lip edges (503) used for abutting against the corresponding outer ring surface of the sealing inner ring (4) are symmetrically arranged at two ends of the inner ring surface of the rubber ring (502), and a plurality of annular grooves (504) are arranged in parallel on the inner ring surface of the rubber ring (502) between the two lip edges (503).
2. The sealed cylindrical roller bearing of claim 1, wherein: two outer ring flanges (101) are respectively arranged at two ends of the inner ring surface of the outer ring (1), an inner ring flange (401) is arranged at one end of the inner ring surface of the inner ring (4), and a movable check ring (6) is detachably arranged at the other end of the inner ring (4).
3. The sealed cylindrical roller bearing of claim 1, wherein: an avoiding ring groove (505) is formed in the inner end face of the sealing ring frame (501), so that the cross section of the sealing ring frame (501) is of an Contraband-shaped structure.
4. The sealed cylindrical roller bearing of claim 1, wherein: the sealing ring frame (501) is made of a steel plate material.
5. The sealed cylindrical roller bearing of claim 1, wherein: the sealing ring frame (501) and the outer ring (1) are in interference fit or transition fit.
6. The sealed cylindrical roller bearing of claim 1, wherein: the cross section of the rubber ring (502) is designed to be an L-shaped structure which is attached and fixed on the outer end surface and the inner ring surface of the sealing ring frame (501).
7. The sealed cylindrical roller bearing of claim 1, wherein: the rubber ring (502) is made of nitrile rubber.
8. The sealed cylindrical roller bearing of claim 1, wherein: the number of the annular grooves (504) is three.
9. The sealed cylindrical roller bearing of claim 1, wherein: the section of the annular groove (504) is semicircular.
10. The sealed cylindrical roller bearing of claim 1, wherein: the clearance between the sealing structure (5) and the plane where the corresponding end face of the outer ring (1) is located is larger than 0mm and smaller than 2 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121996513.4U CN215762801U (en) | 2021-08-24 | 2021-08-24 | Sealed cylindrical roller bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121996513.4U CN215762801U (en) | 2021-08-24 | 2021-08-24 | Sealed cylindrical roller bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215762801U true CN215762801U (en) | 2022-02-08 |
Family
ID=80077970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121996513.4U Active CN215762801U (en) | 2021-08-24 | 2021-08-24 | Sealed cylindrical roller bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215762801U (en) |
-
2021
- 2021-08-24 CN CN202121996513.4U patent/CN215762801U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 471039 No. 96, Jianxi, Luoyang District, Henan, Jianshe Road Patentee after: Luoyang Bearing Group Co.,Ltd. Country or region after: China Address before: 471039 No. 96, Jianxi, Luoyang District, Henan, Jianshe Road Patentee before: LUOYANG LYC BEARING Co.,Ltd. Country or region before: China |
|
| CP03 | Change of name, title or address |