CN217761747U - Light-torque high-strength sealing bearing - Google Patents
Light-torque high-strength sealing bearing Download PDFInfo
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- CN217761747U CN217761747U CN202221136647.3U CN202221136647U CN217761747U CN 217761747 U CN217761747 U CN 217761747U CN 202221136647 U CN202221136647 U CN 202221136647U CN 217761747 U CN217761747 U CN 217761747U
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Abstract
The utility model discloses a light moment of torsion high strength sealed bearing, include: bearing inner race, bearing inner race and set up the rolling element between bearing inner race and bearing inner race, all set up double seal structure between the both ends of bearing inner race and the periphery of bearing inner race, double seal structure includes first sealing washer and second sealing washer, the outer wall connection of the periphery of first sealing washer and bearing inner race, set up preset interval between the inner periphery of first sealing washer and the outer periphery of bearing inner race, the inner periphery of second sealing washer and the outer wall connection of bearing inner race, the flexible construction of the outer periphery of second sealing washer and the tip flexible contact of bearing inner race. The labyrinth seal structure is formed by arranging the double-layer seal structure, so that external foreign matters can be effectively prevented from invading the inside of the bearing, the seal strength of the bearing is effectively improved, and mechanical damage caused by the external foreign matters is resisted; the flexible structure is sealed with the gentle formula contact of bearing inner race, also can avoid bearing internal environment to have direct contact with external environment.
Description
Technical Field
The utility model relates to a bearing seal technical field, more specifically say, relate to a light moment of torsion high strength sealed bearing.
Background
The sealed bearing of present light moment of torsion generally adopts single crimp lid to seal or adopts non-contact nitrile rubber sealing washer to seal, and these two kinds of sealings all belong to non-contact nature sealed for inside and the external environment direct contact of bearing, inside unable effectual the invasion bearing that blocks foreign matter such as coming from external dust influences the life of bearing. Meanwhile, the single-layer sealing enables the strength of a sealing ring of the bearing to be low, the bearing does not have enough sealing strength to resist mechanical damage from the external environment, and the sealing performance of the bearing is reduced.
In summary, how to solve the problems of poor sealing effect and low sealing strength of the existing bearing sealing structure is a problem to be solved urgently by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a light moment of torsion high strength sealed bearing, this light moment of torsion high strength sealed bearing's sealed effectual, sealing strength is high.
In order to achieve the above object, the present invention provides the following technical solutions:
a light-torque, high-strength sealed bearing comprising: bearing inner race, bearing inner race and set up in bearing inner race with rolling element between the bearing inner race, the both ends of bearing inner race with all set up double seal structure between the periphery of bearing inner race, double seal structure includes first sealing washer and second sealing washer, the periphery of first sealing washer with the interior wall connection of bearing inner race, first sealing washer interior week with set up preset interval between the periphery of bearing inner race, the interior week of second sealing washer with the outer wall connection of bearing inner race, the flexible construction of the periphery of second sealing washer with the tip flexible contact of bearing inner race.
Preferably, the first sealing ring comprises an inner sealing plate and an outer sealing plate which are of a Z-shaped structure, the surfaces of the inner sealing plate and the outer sealing plate are mutually attached, the periphery of the inner sealing plate wraps the outer edge of the outer sealing plate, and the periphery of the inner sealing plate is connected with the inner wall of the bearing outer ring.
Preferably, the inner wall of the bearing outer ring is provided with an annular mounting groove, and the periphery of the inner sealing plate is clamped into the annular mounting groove.
Preferably, the second sealing washer include the stereoplasm skeleton and set up in the flexible construction of stereoplasm skeleton periphery, the internal periphery of stereoplasm skeleton with the outer wall connection of bearing inner circle, the periphery card of stereoplasm skeleton is gone into in the mounting groove of flexible construction.
Preferably, an adhesive is arranged between the hard framework and the mounting groove of the flexible structure.
Preferably, the outer periphery of the flexible structure is provided with a first seal lip extending outwards, and the outer periphery of the first seal lip is in contact with the end part of the bearing outer ring.
Preferably, the inner wall of the end part of the bearing outer ring is provided with an inclined plane which is reduced and expanded from inside to outside, and the first sealing lip is in contact with the inclined plane.
Preferably, the inner side of the flexible structure is provided with a second sealing lip extending towards the first sealing ring, the second sealing lip being in contact with the outer side of the first sealing ring.
The light-torque high-strength sealing bearing provided by the application forms a labyrinth sealing structure by arranging the double-layer sealing structure, so that external foreign matters can be effectively prevented from invading the inside of the bearing, and in addition, the double-layer sealing structure can effectively improve the sealing strength of the bearing and prevent mechanical damage caused by the external foreign matters; the flexible structure is sealed with the gentle formula contact of bearing inner race, also can avoid bearing internal environment to have direct contact with external environment to guarantee the life of bearing.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a cross-sectional view of a light-torque high-strength seal bearing provided by the present invention;
fig. 2 is a cross-sectional view of a first seal ring provided by the present invention;
fig. 3 is a cross-sectional view of a second seal ring according to the present invention.
In FIGS. 1-3:
1-bearing outer ring, 2-bearing inner ring, 3-rolling body, 4-retainer, 5-first sealing ring, 51-inner layer sealing plate, 511-cladding plate, 52-outer layer sealing plate, 521-fifth plate, 522-sixth plate, 6-second sealing ring, 61-hard framework, 611-annular plate, 62-flexible structure, 621-second sealing lip and 622-first sealing lip.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
The core of the utility model is to provide a light moment of torsion high strength seal bearing, this light moment of torsion high strength seal bearing's sealed effectual, seal strength is high.
Referring to fig. 1 to 3, a light-torque high-strength sealed bearing includes: bearing inner race 2, bearing inner race 1 and set up rolling element 3 between bearing inner race 2 and bearing inner race 1, all set up double seal structure between bearing inner race 2's the both ends of bearing inner race 1 and the periphery, double seal structure includes first sealing washer 5 and second sealing washer 6, the outer wall connection of the periphery of first sealing washer 5 and bearing inner race 1, set up the preset interval between the inner periphery of first sealing washer 5 and the periphery of bearing inner race 2, the inner periphery of second sealing washer 6 and the outer wall connection of bearing inner race 2, the flexible construction 62 of the outer periphery of second sealing washer 6 and the tip flexible contact of bearing inner race 1.
The rolling element 3 is installed between the bearing inner ring 2 and the bearing outer ring 1 through the retainer 4, the first sealing ring 5 is only connected with the bearing outer ring 1, the second sealing ring 6 is only connected with the bearing inner ring 2, the flexible structure 62 is in flexible contact with the bearing outer ring 1, and the first sealing ring is only connected with the bearing outer ring 1, so that the bearing does not have torque generated by contact of a sealing lip and the outer wall of the bearing inner ring 2 in the rotating process, and the bearing has the characteristic of light torque. In addition, the flexible structure 62 is in soft contact sealing with the end part of the bearing outer ring 1, and external environment foreign matters can be effectively prevented from invading into the bearing.
The light-torque high-strength sealing bearing provided by the application forms a labyrinth sealing structure by arranging the double-layer sealing structure, so that external foreign matters can be effectively prevented from invading the inside of the bearing, and in addition, the double-layer sealing structure can effectively improve the sealing strength of the bearing and prevent mechanical damage caused by the external foreign matters; the flexible structure 62 is sealed with the soft contact of the bearing outer ring 1, so that the direct contact between the internal environment of the bearing and the external environment can be avoided, and the service life of the bearing is ensured.
In addition to the above embodiment, it is further preferable that the first seal ring 5 includes the inner seal plate 51 and the outer seal plate 52 having the zigzag structures, plate surfaces of the inner seal plate 51 and the outer seal plate 52 are attached to each other, an outer periphery of the inner seal plate 51 is wrapped around an outer edge of the outer seal plate 52, and an outer periphery of the inner seal plate 51 is connected to an inner wall of the bearing outer ring 1. The inner sealing plate 51 and the outer sealing plate 52 are made of iron sheets to form a sealing layer with high structural strength, the inner sealing plate 51 comprises a first plate and a second plate which are parallel to each other, the outer periphery of the first plate is connected with the inner periphery of the second plate through a third plate, the third plate is perpendicular to the first plate and the second plate, and the second plate is positioned on the inner side of the first plate; the outer sealing plate 52 comprises a fourth plate and a fifth plate 521 which are parallel to each other, the outer periphery of the fourth plate is connected with the inner periphery of the fifth plate 521 through a sixth plate 522, the sixth plate 522 is perpendicular to the fourth plate and the fifth plate 521, the fifth plate 521 is located on the inner side of the fourth plate, a cladding plate 511 is arranged on the outer periphery of the second plate, and the cladding plate 511 is wrapped on the fifth plate 521. The first sealing ring 5 with the double-layer iron sheet structure further improves the sealing strength of the bearing and enhances the protection of the double-layer sealing structure to the inside of the bearing.
In addition to the above embodiments, it is further preferable that an annular mounting groove is provided on the inner wall of the bearing outer ring 1, and the outer periphery of the inner seal plate 51 is fitted into the annular mounting groove. When the first gasket 5 is not installed, the cladding plate 511 is not wrapped on the fifth plate 521, and when the outer periphery of the joint of the cladding plate 511 and the second plate is clamped into the annular installation groove, the cladding plate 511 is deformed to wrap the fifth plate 521. The inner sealing plate 51 is rigidly riveted, so that the first sealing ring 5 can be clamped into the annular mounting groove, the connection strength between the first sealing ring 5 and the bearing outer ring 1 is improved, and meanwhile, the fifth plate 521 of the outer sealing plate 52 is wrapped by the cladding plate 511 connected with the inner sealing plate 51, so that the sealing rigidity of the first sealing ring 5 is enhanced.
In addition to the above embodiments, it is further preferable that the second seal ring 6 includes a hard frame 61 and a flexible structure 62 provided on an outer periphery of the hard frame 61, an inner periphery of the hard frame 61 is connected to an outer wall of the bearing inner ring 2, and an outer periphery of the hard frame 61 is fitted into a mounting groove of the flexible structure 62. The hard framework 61 is formed by stamping alloy steel, and the hard framework 61 is step-shaped, so that the structural strength of the hard framework 61 is effectively improved. An annular plate 611 protruding in the axial direction is arranged on the inner periphery of the hard framework 61, the annular plate 611 is installed on the bearing inner ring 2 in a riveting mode, and the hard framework 61 and the flexible structure 62 are connected through the installation groove, so that the connection stability of the hard framework 61 and the flexible structure 62 can be improved. The hard framework 61 is made of steel, so that the sealing strength of the bearing is effectively guaranteed, and the bearing can effectively resist mechanical impact from the outside.
In order to improve the connection strength between the hard skeleton 61 and the flexible structure 62, preferably, an adhesive is disposed between the mounting grooves of the hard skeleton 61 and the flexible structure 62.
In addition to the above embodiment, as a further preferable mode, the outer periphery of the flexible structure 62 is provided with a first seal lip 622 extending outward, and the outer periphery of the first seal lip 622 is in contact with the end portion of the bearing outer ring 1. The first sealing lip 622 has elasticity, and when the second sealing ring 6 is installed, the bearing outer ring 1 applies a radially inward pressing force to the first sealing lip 622, so that the first sealing lip 622 moves towards the hard framework 61, and the sealing performance can be effectively improved after the pressure between the bearing outer ring 1 and the first sealing lip 622 is increased.
In addition to the above embodiment, as a further preferable mode, an inner wall of an end portion of the bearing outer ring 1 is provided with a slope that decreases and expands from inside to outside, and the first seal lip 622 is in contact with the slope. The structure on inclined plane agrees with mutually with the structure of first seal lip 622, and the setting on inclined plane more is favorable to with the contact of first seal lip 622, promotes sealed effect.
In order to further improve the sealing performance, it is further preferable that, on the basis of the above-described embodiment, the inner side of the flexible structure 62 is provided with a second sealing lip 621 extending toward the first sealing ring 5, and the second sealing lip 621 is in contact with the outer side of the first sealing ring 5. The second sealing lip 621 and the connection between the sixth plate 522 and the fourth plate are in soft contact sealing, so that the interior of the bearing does not directly contact with the external environment, and the sealing performance of the bearing is further improved.
In the present specification, the embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
It is right above that the utility model provides a light moment of torsion high strength sealed bearing has carried out detailed introduction. The principles and embodiments of the present invention have been explained herein using specific examples, and the above description of the embodiments is only used to help understand the method and its core idea of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the scope of the appended claims.
Claims (8)
1. A light-torque, high-strength sealed bearing, comprising: bearing inner race (2), bearing inner race (1) and set up in bearing inner race (2) with rolling element (3) between bearing inner race (1), the both ends of bearing inner race (1) with all set up double seal structure between the periphery of bearing inner race (2), double seal structure includes first sealing washer (5) and second sealing washer (6), the periphery of first sealing washer (5) with the interior wall connection of bearing inner race (1), first sealing washer (5) interior week with set up preset interval between the periphery of bearing inner race (2), the interior week of second sealing washer (6) with the outer wall connection of bearing inner race (2), the flexible construction (62) of the periphery of second sealing washer (6) with the tip flexonics of bearing inner race (1).
2. The light-torque high-strength sealed bearing according to claim 1, wherein the first seal ring (5) comprises an inner seal plate (51) and an outer seal plate (52) which are of a zigzag structure, the plate surfaces of the inner seal plate (51) and the outer seal plate (52) are attached to each other, the outer periphery of the inner seal plate (51) is wrapped on the outer edge of the outer seal plate (52), and the outer periphery of the inner seal plate (51) is connected with the inner wall of the bearing outer ring (1).
3. The light-torque high-strength sealed bearing according to claim 2, wherein the inner wall of the bearing outer ring (1) is provided with an annular mounting groove, and the outer periphery of the inner seal plate (51) is snapped into the annular mounting groove.
4. The light-torque high-strength sealed bearing according to claim 1, wherein the second seal ring (6) comprises a hard skeleton (61) and a flexible structure (62) arranged on the outer periphery of the hard skeleton (61), the inner periphery of the hard skeleton (61) is connected with the outer wall of the bearing inner ring (2), and the outer periphery of the hard skeleton (61) is clamped in a mounting groove of the flexible structure (62).
5. The light-torque high-strength sealed bearing according to claim 4, characterized in that an adhesive is arranged between the hard skeleton (61) and the mounting groove of the flexible structure (62).
6. The light-torque high-strength sealed bearing according to claim 4, characterized in that the outer periphery of the flexible structure (62) is provided with a first seal lip (622) extending outward, the outer periphery of the first seal lip (622) being in contact with the end of the bearing outer ring (1).
7. The light-torque high-strength sealed bearing according to claim 6, characterized in that the inner wall of the end portion of the bearing outer ring (1) is provided with an inclined surface which decreases and expands from inside to outside, and the first seal lip (622) is in contact with the inclined surface.
8. The low-torque high-strength sealed bearing according to any one of claims 4 to 7, characterized in that the inner side of the flexible structure (62) is provided with a second sealing lip (621) extending towards the first sealing ring (5), the second sealing lip (621) being in contact with the outer side of the first sealing ring (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221136647.3U CN217761747U (en) | 2022-05-12 | 2022-05-12 | Light-torque high-strength sealing bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221136647.3U CN217761747U (en) | 2022-05-12 | 2022-05-12 | Light-torque high-strength sealing bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217761747U true CN217761747U (en) | 2022-11-08 |
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ID=83886303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221136647.3U Active CN217761747U (en) | 2022-05-12 | 2022-05-12 | Light-torque high-strength sealing bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217761747U (en) |
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2022
- 2022-05-12 CN CN202221136647.3U patent/CN217761747U/en active Active
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