CN217234143U - Combined oil seal for hub - Google Patents
Combined oil seal for hub Download PDFInfo
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- CN217234143U CN217234143U CN202220885037.7U CN202220885037U CN217234143U CN 217234143 U CN217234143 U CN 217234143U CN 202220885037 U CN202220885037 U CN 202220885037U CN 217234143 U CN217234143 U CN 217234143U
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- sealing
- frame
- lip
- axial extension
- seal
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Abstract
The utility model discloses a combined oil seal for a wheel hub, which comprises an outer framework, an inner framework and a sealing element; the outer framework is suitable for being in sealing connection with the outer seat, the inner framework is suitable for being in sealing connection with the inner shaft, and the inner framework is located on the inner side of the outer framework; the sealing member is installed the ectoskeleton with between the inner frame and the ectoskeleton with form sealedly between the inner frame, the sealing member including be suitable for with the outer sealing portion of the sealed butt of ectoskeleton with be suitable for with the inner sealing portion of the sealed butt of inner frame. The utility model discloses install and to prevent in wheel hub that the lubricating oil in the bearing from spilling, can block external dust and silt and invade the bearing, and then can prolong the life of bearing.
Description
Technical Field
The utility model relates to a wheel hub is with combination oil blanket.
Background
At present, a hub is rotatably connected to a shaft through a bearing, and lubricating oil in the bearing leaks out in the daily use process, so that the lubrication of the bearing is deteriorated, and the abrasion of the bearing is accelerated. And because the environment that the vehicle travels is more complicated, dust, silt etc. can invade in the bearing, and then can lead to the bearing to be corroded and further accelerate the wearing and tearing of bearing, influence the life of bearing.
Disclosure of Invention
The utility model aims to solve the technical problem that overcome prior art's defect, provide a wheel hub is with combination oil blanket, it installs and can prevent in wheel hub that the lubricating oil in the bearing from spilling, can block external dust and silt and invade the bearing, and then can prolong the life of bearing.
In order to solve the technical problem, the technical scheme of the utility model is that: a combination oil seal for a wheel hub, comprising:
an outer frame adapted to be sealingly connected to the outer seat;
the inner framework is suitable for being connected with the inner shaft in a sealing mode and is positioned on the inner side of the outer framework;
install the exoskeleton with between the inner frame and the exoskeleton with form sealed sealing member between the inner frame, the sealing member including be suitable for with the outer sealing portion of the sealed butt of exoskeleton with be suitable for with the inner sealing portion of the sealed butt of inner frame.
Further provides a concrete structure of the outer framework, wherein the outer framework comprises a first axial extending body, a first radial extending body and a flanging part; wherein the content of the first and second substances,
the inner side wall of the first axial extension body is in sealing abutting joint with the outer side wall of the outer sealing part, and the outer side wall of the first axial extension body is suitable for being in interference sealing fit with the outer seat;
the outer end part of the first radial extension body is connected to the lower end part of the first axial extension body, and the first radial extension body is abutted against the lower end part of the outer sealing part;
the burring part is connected to an upper end of the first axial extension body and presses an upper end of the outer sealing part.
Furthermore, a plurality of through holes are formed in the first radial extension body, and the through holes are sequentially arranged along the circumferential direction of the first radial extension body.
Further provided is a specific structure of the sealing element, wherein the outer sealing part comprises an outer support frame extending along the axial direction and an outer sealing body which is connected to the outer support frame and is in sealing abutment with the outer framework;
the inner seal portion comprises a radially extending inner support frame and a lip portion connected to the inner support frame and in sealing abutment with the inner frame;
the outer periphery of the inner support frame is connected to the outer support frame.
Further provides a concrete structure of the outer support frame, the outer support frame comprises an outer frame body and an inner frame body;
the inner frame body is positioned at the inner side of the outer frame body;
the outer frame body and the inner frame body extend along the axial direction;
the lower end part of the outer frame body is connected with the lower end part of the inner frame body;
the periphery of the inner support frame is connected with the upper end of the inner frame body.
Further, the outer frame body, the inner frame body and the inner support frame are integrally formed.
Further provided is a concrete structure of the inner frame, the inner frame comprising a second radially extending body, a second axially extending body and a third axially extending body; wherein the content of the first and second substances,
the inner wall of the second axial extension is adapted to be in sealing interference fit with the inner shaft;
the lower end part of the second axial extension body is connected with the inner end part of the second radial extension body;
the outer end of the second radial extension is connected to the upper end of the third axial extension.
There is further provided a specific structure of the lip, the lip comprising:
first and second sealing lips adapted for sealing abutment with an outer side wall of the second axial extension;
a third sealing lip adapted for sealing abutment with an outer side wall of the third axial extension.
Further, be equipped with between the lip with the inner frame and be located first seal lip with first lubrication chamber between the second seal lip and be located second seal lip with the second lubrication chamber between the third seal lip.
Further, the combination oil seal for a wheel hub further includes an elastic member embedded in an outer peripheral portion of the first seal lip.
After the technical scheme is adopted, the bearing is positioned between the outer seat and the inner shaft, the outer framework is in sealing connection with the outer seat, the inner framework is in sealing connection with the inner shaft, the outer sealing part is in sealing butt connection with the outer framework, the inner sealing part is in sealing butt connection with the inner framework, and then reliable sealing is formed between the outer seat and the inner shaft, so that lubricating oil in the bearing is prevented from leaking on the one hand, and external dust and silt are prevented from invading the bearing on the other hand, so that the bearing is prevented from being corroded and abraded, and the service life of the bearing is prolonged.
Drawings
Fig. 1 is a first schematic structural view of the combined oil seal for a wheel hub of the present invention;
fig. 2 is a schematic structural diagram of the combined oil seal for wheel hub of the present invention.
Detailed Description
In order that the present invention may be more readily and clearly understood, the following detailed description of the present invention is provided in connection with the accompanying drawings.
As shown in fig. 1 and 2, a combination oil seal for a wheel hub includes:
an exoskeleton 1 adapted to be sealingly coupled to an outer seat 100;
an inner frame 2 adapted to be sealingly connected to an inner shaft 200, the inner frame 2 being located inside the outer frame 1;
a seal 3 mounted between the outer frame 1 and the inner frame 2 and forming a seal between the outer frame 1 and the inner frame 2, the seal 3 comprising an outer seal 4 adapted to sealingly abut the outer frame 1 and an inner seal 5 adapted to sealingly abut the inner frame 2; specifically, the outer seat 100 may be a hub, a bearing is located between the outer seat 100 and the inner shaft 200, the outer frame 1 is in sealing connection with the outer seat 100, the inner frame 2 is in sealing connection with the inner shaft 200, the outer sealing portion 4 is in sealing abutment with the outer frame 1, the inner sealing portion 5 is in sealing abutment with the inner frame 2, and reliable sealing is further formed between the outer seat 100 and the inner shaft 200, so that on one hand, lubricating oil in the bearing is prevented from leaking, on the other hand, external dust and sand are prevented from invading the bearing, further, the bearing is prevented from being corroded and abraded, and the service life of the bearing is prolonged.
As shown in fig. 1 and 2, the exoskeleton 1 may include a first axial extension 6, a first radial extension 7 and a flanging part 8; wherein the content of the first and second substances,
the inner side wall of the first axial extension body 6 is in sealing abutment with the outer side wall of the outer sealing part 4, and the outer side wall of the first axial extension body 6 is suitable for interference sealing fit with the outer seat 100;
the outer end part of the first radial extension body 7 is connected to the lower end part of the first axial extension body 6, and the first radial extension body 7 is abutted against the lower end part of the outer sealing part 4;
the burring 8 is attached to the upper end of the first axial extension 6 and presses the upper end of the outer seal 4.
As shown in fig. 1 and 2, a plurality of through holes 9 are formed in the first radially extending body 7, and the plurality of through holes 9 are sequentially arranged along the circumferential direction of the first radially extending body 7; specifically, the through hole 9 is used for cooperating with a speed sensor in an ABS system to provide a speed parameter for the ABS system.
As shown in fig. 1 and 2, the outer seal 4 may include an outer support frame 10 extending along the axial direction and an outer seal body 11 connected to the outer support frame 10 and in sealing abutment with the outer frame 1;
the inner seal 5 may comprise a radially extending inner support frame 12 and a lip 13 connected to the inner support frame 12 and in sealing abutment with the inner frame 2;
the outer periphery of the inner support frame 12 is connected to the outer support frame 10; specifically, the outer seal body 11 is in sealing contact with the inner side wall of the first axial extension body 6, the upper end surface of the first radial extension body 7, and the lower cross-section of the flange portion 8.
As shown in fig. 1 and 2, the outer support frame 10 may include an outer frame 14 and an inner frame 15;
the inner frame body 15 is positioned at the inner side of the outer frame body 14;
the outer frame body 14 and the inner frame body 15 both extend along the axial direction;
the lower end of the outer frame body 14 is connected with the lower end of the inner frame body 15;
the outer periphery of the inner support frame 12 is connected with the upper end of the inner frame body 15.
In this embodiment, the outer frame 14, the inner frame 15 and the inner support frame 12 are integrally formed.
As shown in fig. 1 and 2, the inner skeleton 2 may include a second radially extending body 16, a second axially extending body 17 and a third axially extending body 18; wherein the content of the first and second substances,
the inner wall of the second axial extension 17 is adapted to be in sealing interference fit with the inner shaft 200;
the lower end of the second axial extension 17 is connected to the inner end of the second radial extension 16;
the outer end of the second radial extension 16 is connected to the upper end of the third axial extension 18.
As shown in fig. 1 and 2, the lip 13 may include:
a first sealing lip 19 and a second sealing lip 20 adapted to be in sealing abutment with the outer side wall of said second axial extension 17;
a third sealing lip 21 adapted to be in sealing abutment with an outer side wall of said third axial extension 18; in this embodiment, the sealing direction of the first sealing lip 19 is upward, and the sealing direction of the second sealing lip 20 and the sealing direction of the third sealing lip 21 are downward; the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are for convenience of description only and should not be construed as limiting the present invention.
As shown in fig. 1 and 2, a first lubrication cavity 22 between the first seal lip 19 and the second seal lip 20 and a second lubrication cavity 23 between the second seal lip 20 and the third seal lip 21 are provided between the lip 13 and the inner frame 2, and the first lubrication cavity 22 and the second lubrication cavity 23 are adapted to be filled with grease.
As shown in fig. 1 and 2, the combination oil seal for a wheel hub may further include an elastic member 24 embedded in an outer peripheral portion of the first seal lip 19, the elastic member 24 may be used for clasping the first seal lip 19 to the inner shaft 200, and the elastic member 24 may be a spring.
The utility model discloses a theory of operation as follows:
the bearing is located outer seat 100 with between the interior axle 200, outer skeleton 1 with outer seat 100 sealing connection, inner frame 2 with interior axle 200 sealing connection, outer sealing 4 with outer skeleton 1 seals up the butt, inner sealing 5 with inner frame 2 seals up the butt, and then outer seat 100 with form reliable sealed between the interior axle 200, prevented that the lubricating oil in the bearing from spilling on the one hand, on the other hand has blockked that external dust and silt invade the bearing, and then has prevented that the bearing from being corroded and wearing and tearing, has prolonged the life of bearing.
The above-mentioned embodiments further explain in detail the technical problems, technical solutions and advantages solved by the present invention, and it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A wheel hub is with combination oil blanket which characterized in that, it includes:
an exoskeleton (1) adapted to be sealingly connected to an outer seat (100);
an inner frame (2) adapted to be sealingly connected to an inner shaft (200), the inner frame (2) being located inside the outer frame (1);
install outer frame (1) with between inner frame (2) and outer frame (1) with form sealed sealing member (3) between inner frame (2), sealing member (3) including be suitable for with outer sealing portion (4) of the sealed butt of outer frame (1) with be suitable for with inner sealing portion (5) of the sealed butt of inner frame (2).
2. A unit oil seal for a wheel hub according to claim 1,
the outer framework (1) comprises a first axial extending body (6), a first radial extending body (7) and a flanging part (8); wherein, the first and the second end of the pipe are connected with each other,
the inner side wall of the first axial extension body (6) is in sealing abutment with the outer side wall of the outer sealing part (4), and the outer side wall of the first axial extension body (6) is suitable for interference sealing fit with the outer seat (100);
the outer end part of the first radial extension body (7) is connected to the lower end part of the first axial extension body (6), and the first radial extension body (7) is abutted against the lower end part of the outer sealing part (4);
the flanging part (8) is connected to the upper end part of the first axial extension body (6) and presses the upper end part of the outer sealing part (4).
3. A unit oil seal for a wheel hub according to claim 2,
the first radial extension body (7) is provided with a plurality of through holes (9), and the through holes (9) are arranged in sequence along the circumferential direction of the first radial extension body (7).
4. A unit oil seal for a wheel hub according to claim 1,
the outer sealing part (4) comprises an outer support frame (10) extending along the axial direction and an outer sealing body (11) which is connected to the outer support frame (10) and is in sealing and abutting contact with the outer framework (1);
the inner seal portion (5) comprises a radially extending inner support frame (12) and a lip portion (13) connected to the inner support frame (12) and in sealing abutment with the inner frame (2);
the outer periphery of the inner support frame (12) is connected to the outer support frame (10).
5. A unit oil seal for a wheel hub according to claim 4,
the outer support frame (10) comprises an outer frame body (14) and an inner frame body (15);
the inner frame body (15) is positioned at the inner side of the outer frame body (14);
the outer frame body (14) and the inner frame body (15) extend along the axial direction;
the lower end part of the outer frame body (14) is connected with the lower end part of the inner frame body (15);
the outer periphery of the inner support frame (12) is connected with the upper end of the inner frame body (15).
6. The combination oil seal for wheel hubs according to claim 5, wherein the outer frame body (14), the inner frame body (15) and the inner support frame (12) are integrally formed.
7. Combined oil seal for wheel hubs according to claim 4, characterized in that said inner skeleton (2) comprises a second radial extension (16), a second axial extension (17) and a third axial extension (18); wherein the content of the first and second substances,
the inner wall of the second axial extension (17) is adapted to be in sealing interference fit with the inner shaft (200);
the lower end of the second axial extension (17) is connected with the inner end of the second radial extension (16);
the outer end of the second radial extension (16) is connected to the upper end of the third axial extension (18).
8. A unit oil seal for wheel hubs according to claim 7, characterized in that said lip (13) comprises:
a first sealing lip (19) and a second sealing lip (20) adapted to be in sealing abutment with an outer side wall of the second axial extension (17);
a third sealing lip (21) adapted to sealingly abut against an outer side wall of the third axial extension (18).
9. The combination oil seal for wheel hubs according to claim 8, wherein a first lubrication chamber (22) between the first seal lip (19) and the second seal lip (20) and a second lubrication chamber (23) between the second seal lip (20) and the third seal lip (21) are provided between the lip (13) and the inner frame (2).
10. The combination oil seal for a wheel hub as claimed in claim 8, further comprising an elastic member (24) embedded in an outer peripheral portion of the first seal lip (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220885037.7U CN217234143U (en) | 2022-04-18 | 2022-04-18 | Combined oil seal for hub |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220885037.7U CN217234143U (en) | 2022-04-18 | 2022-04-18 | Combined oil seal for hub |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217234143U true CN217234143U (en) | 2022-08-19 |
Family
ID=82818388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220885037.7U Active CN217234143U (en) | 2022-04-18 | 2022-04-18 | Combined oil seal for hub |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217234143U (en) |
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2022
- 2022-04-18 CN CN202220885037.7U patent/CN217234143U/en active Active
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