CN217073917U - Combined hub oil seal structure - Google Patents
Combined hub oil seal structure Download PDFInfo
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- CN217073917U CN217073917U CN202220678088.2U CN202220678088U CN217073917U CN 217073917 U CN217073917 U CN 217073917U CN 202220678088 U CN202220678088 U CN 202220678088U CN 217073917 U CN217073917 U CN 217073917U
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- frame body
- lip
- oil seal
- inner ring
- framework
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Abstract
The utility model discloses a combined type wheel hub oil seal structure which is suitable for being installed between a shaft body and a seat body and comprises an outer ring framework, an inner ring sealing element and a middle oil seal; the outer ring framework is suitable for being connected to the seat body in a sealing mode; the inner ring sealing element is suitable for being hermetically sleeved on the shaft body; the middle oil seal is arranged between the outer ring framework and the inner ring sealing element and comprises a supporting framework and a colloid connected to the supporting framework, and the colloid comprises an outer colloid part connected to the outer peripheral part of the supporting framework and a lip part connected to the inner end part of the supporting framework; the outer rubber part is tightly matched and hermetically connected with the inner side wall of the outer ring framework, and the lip part is tightly matched and hermetically connected with the outer side wall of the inner ring sealing element. The utility model has the advantages of simple and reasonable structure, can reduce the manufacturing degree of difficulty, reduce manufacturing cost.
Description
Technical Field
The utility model relates to a modular wheel hub oil blanket structure.
Background
At present, the wheel hub oil blanket is used for installing between wheel hub and wheel hub axle for prevent oil leakage and block the dust, for reducing the wearing and tearing of wheel hub axle and improving sealing performance, the wheel hub oil blanket of a lot of combinations has appeared on the market at present, but the most structure complicacy of current combination formula wheel hub oil blanket, leads to making the degree of difficulty increase, and manufacturing cost increases.
Disclosure of Invention
The utility model aims to solve the technical problem that overcome prior art's defect, provide a modular wheel hub oil blanket structure, its simple structure is reasonable, can reduce the manufacturing degree of difficulty, reduces manufacturing cost.
In order to solve the technical problem, the technical scheme of the utility model is that: a combined type wheel hub oil seal structure is suitable for being installed between a shaft body and a seat body and comprises an outer ring framework, an inner ring sealing element and a middle oil seal; wherein the content of the first and second substances,
the outer ring framework is suitable for being connected to the seat body in a sealing mode;
the inner ring sealing element is suitable for being hermetically sleeved on the shaft body;
the middle oil seal is arranged between the outer ring framework and the inner ring sealing element and comprises a supporting framework and a colloid connected to the supporting framework, and the colloid comprises an outer colloid part connected to the outer periphery of the supporting framework and a lip part connected to the inner end part of the supporting framework;
the outer rubber part is tightly matched and hermetically connected with the inner side wall of the outer ring framework, and the lip part is tightly matched and hermetically connected with the outer side wall of the inner ring sealing element.
Further provides a concrete structure of the support frame, the support framework comprises a first frame body extending along the axial direction and a second frame body extending along the radial direction;
the outer end part of the second frame body is connected to the lower end part of the first frame body;
the outer rubber part is connected to the outer side wall of the first frame body;
the lip is coupled to an inner end portion of the second frame body.
Further provided is a specific structure of the lip portion, wherein the lip portion comprises a sealing lip body which is suitable for abutting against the outer side wall of the inner ring sealing element and a slag blocking lip body which is suitable for abutting against the outer side wall of the inner ring sealing element.
Further, the inner race seal includes a third carrier body extending along the axis and a fourth carrier body extending in the radial direction;
the outer end part of the fourth frame body is connected to the lower end part of the third frame body;
the lip is in sealing butt joint with the outer side wall of the third frame body;
the outer ring framework comprises a fifth frame body extending along the axial direction and a sixth frame body extending along the radial direction;
the outer end part of the sixth frame body is connected to the upper end part of the fifth frame body;
the outer rubber part is in sealing butt joint with the inner side wall of the fifth frame body;
the middle oil seal is positioned between the fourth frame body and the sixth frame body.
Further, the lip part also comprises a limiting bulge;
the upper end part of the third frame body is also connected with a limiting frame body which extends outwards along the radial direction;
the inner ring sealing element is suitable for sliding relative to the outer ring framework along the axial direction, when the inner ring sealing element slides downwards along the axial direction to a certain position, the limiting frame body abuts against the inner end portion of the sixth frame body so as to limit the inner ring sealing element to slide downwards, and when the inner ring sealing element slides upwards along the axial direction to a certain position, the fourth frame body abuts against the limiting protrusion so as to limit the inner ring sealing element to slide upwards.
The inner ring sealing element further comprises an inner rubber part which is connected to the inner side wall of the third frame body and is suitable for being in sealing fit with the shaft body.
Further in order to improve the sealing performance, the inner side wall of the inner rubber part is provided with at least one sealing bulge extending along the circumferential direction of the inner rubber part.
Further in order to block muddy water, a mud blocking lip body which is suitable for being abutted against the fifth frame body is connected to the inner end part of the fourth frame body.
Further provides a concrete structure of the mud blocking lip body, wherein the mud blocking lip body comprises a mud blocking upper lip and a mud blocking lower lip;
the upper mud blocking lip and the lower mud blocking lip are respectively suitable for being abutted against the inner side wall of the fifth frame body;
an elastic notch is arranged between the upper mud blocking lip and the lower mud blocking lip.
Further, the outer ring framework further comprises a seventh frame body;
the inner end part of the seventh frame body is connected to the lower end part of the fifth frame body;
and the seventh frame body is provided with a plurality of speed measuring holes which are sequentially arranged along the circumferential direction of the seventh frame body.
After the technical scheme is adopted, the outer ring framework is in sealing connection with the base body, the inner ring sealing element is in sealing connection with the shaft body, the outer rubber part is in tight fit sealing connection with the inner side wall of the outer ring framework, the lip part is in tight fit sealing connection with the outer side wall of the inner ring sealing element, the shaft body is sealed with the base body, oil leakage and dust blocking can be prevented, the structure of the combined hub oil seal structure is simple, the manufacturing difficulty is reduced, and the manufacturing cost is reduced.
Drawings
Fig. 1 is a partial detailed view of the combined hub oil seal structure of the present invention;
fig. 2 is the structure diagram of the combined hub oil seal structure 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 combined type wheel hub oil seal structure, which is suitable for being installed between a shaft body and a seat body, comprises an outer ring framework 100, an inner ring sealing element 200 and an intermediate oil seal 300; wherein the content of the first and second substances,
the outer ring framework 100 is suitable for being connected to the seat body in a sealing manner;
the inner ring seal 200 is adapted to seal over the shaft body;
the middle oil seal 300 is installed between the outer ring framework 100 and the inner ring seal 200, the middle oil seal 300 comprises a support framework 1 and a colloid connected to the support framework 1, and the colloid comprises an outer colloid part 2 connected to the outer periphery of the support framework 1 and a lip part 3 connected to the inner end of the support framework 1;
the outer rubber part 2 is tightly matched and sealed with the inner side wall of the outer ring framework 100, and the lip part 3 is tightly matched and sealed with the outer side wall of the inner ring sealing element 200; specifically, the outer ring framework 100 is in sealing connection with the seat body, the inner ring sealing element 200 is in sealing connection with the shaft body, the outer rubber part 2 is in close-fit sealing connection with the inner side wall of the outer ring framework 100, and the lip part 3 is in close-fit sealing connection with the outer side wall of the inner ring sealing element 200, so that sealing is formed between the shaft body and the seat body, and oil leakage and dust blocking can be prevented; and the structure of the combined hub oil seal structure is simpler, the manufacturing difficulty is reduced, and the manufacturing cost is reduced. In this embodiment, the seat body may be a hub, and the shaft body may be a hub shaft.
As shown in fig. 1 and 2, the support frame 1 may include a first frame body 4 extending along an axial direction and a second frame body 5 extending along a radial direction;
the outer end part of the second frame body 5 is connected to the lower end part of the first frame body 4;
the outer rubber part 2 is connected to the outer side wall of the first frame body 4;
the lip 3 is connected to an inner end portion of the second frame body 5; in this embodiment, the first frame 4 and the second frame 5 are a whole.
As shown in fig. 1 and 2, the lip 3 may include a sealing lip body 6 adapted to abut against an outer sidewall of the inner ring seal 200 and a slag stopper lip body 7 adapted to abut against an outer sidewall of the inner ring seal 200; in this embodiment, the sealing direction of the sealing lip body 6 is upward, the sealing direction of the slag stopping lip body 7 is downward, and the sealing lip body 6 is located above the slag stopping lip body 7; further, an elastic member is embedded in the outer peripheral portion of the seal lip body 6, wherein the elastic member may be a spring, and the elastic member is configured to hold the seal lip body 6 tightly so that the seal lip body 6 holds the inner ring seal 200 tightly.
As shown in fig. 1 and 2, the inner ring seal 200 may include a third frame body 8 extending along an axis and a fourth frame body 9 extending in a radial direction;
the outer end part of the fourth frame body 9 is connected to the lower end part of the third frame body 8;
the lip 3 is in sealing contact with the outer side wall of the third frame body 8;
the outer ring frame 100 includes a fifth frame body 10 extending in the axial direction and a sixth frame body 11 extending in the radial direction;
the outer end part of the sixth frame body 11 is connected to the upper end part of the fifth frame body 10;
the outer rubber part 2 is in sealing butt joint with the inner side wall of the fifth frame body 10;
the middle oil seal 300 is positioned between the fourth frame body 9 and the sixth frame body 11; specifically, the lateral wall of the fifth frame body 10 is suitable for being in interference fit with the base body to further achieve sealing, and the sealing lip body 6 and the slag stopping lip body 7 are all abutted to the lateral wall of the third frame body 8.
As shown in fig. 1 and 2, the lip 3 may further include a limit protrusion 12;
the upper end part of the third frame body 8 can be further connected with a limiting frame body 13 which extends outwards along the radial direction;
the inner ring seal 200 is adapted to slide relative to the outer ring frame 100 in the axial direction, when the inner ring seal 200 slides downwards in position in the axial direction, the limiting frame 13 abuts against the inner end of the sixth frame 11 to limit the downward sliding of the inner ring seal 200, and when the inner ring seal 200 slides upwards in position in the axial direction, the fourth frame 9 abuts against the limiting protrusion 12 to limit the upward sliding of the inner ring seal 200; specifically, the limiting protrusion 12 is located at the lower end of the lip 3 and protrudes downward, and the third frame body 8, the fourth frame body 9 and the limiting frame body 13 are integrated. It should be noted that the terms "upper", "lower", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
As shown in fig. 1 and 2, the inner ring seal 200 may further include an inner rubber portion 14 connected to an inner sidewall of the third frame body 8 and adapted to be in sealing engagement with the shaft body; wherein, the inner side wall of the inner rubber part 14 is provided with at least one sealing bulge 15 extending along the circumferential direction of the inner rubber part 14; specifically, the sealing protrusion 15 is used for enhancing the sealing performance between the inner rubber part 14 and the shaft body; in this embodiment, the sealing protrusion 15 is provided with two passages.
As shown in fig. 1 and 2, a mud blocking lip 16 adapted to abut against the fifth frame 10 may be connected to the inner end of the fourth frame 9; specifically, the mud blocking lip body 16 is used for blocking muddy water, and preventing the muddy water from entering between the outer ring frame 100 and the inner ring seal member 200.
As shown in fig. 1 and 2, the mud blocking lip body 16 may include a mud blocking upper lip and a mud blocking lower lip;
the upper mud blocking lip and the lower mud blocking lip are respectively suitable for being abutted against the inner side wall of the fifth frame body 10;
an elastic notch 17 is arranged between the upper mud blocking lip and the lower mud blocking lip; specifically, the elastic notch 17 can enable the upper mud guard lip and the lower mud guard lip to have better elasticity, so that the upper mud guard lip and the lower mud guard lip are softer, and resistance to sliding of the inner ring sealing element 200 relative to the outer ring framework 100 can be reduced; in this embodiment, the outer rubber portion 2, the lip portion 3, the inner rubber portion 14 and the mud blocking lip body 16 may be made of rubber.
As shown in fig. 1 and 2, the outer ring frame 100 may further include a seventh frame 18;
the inner end of the seventh frame 18 is connected to the lower end of the fifth frame 10;
the seventh frame body 18 is provided with a plurality of speed measuring holes 19 which are sequentially arranged along the circumferential direction of the seventh frame body 18; specifically, the automobile ABS system has a speed sensor, and the speed sensor can detect the speed measuring hole 19 to obtain the rotation speed information of the wheel; in this embodiment, the fifth frame 10, the sixth frame 11 and the seventh frame 18 are a whole.
The working principle of the utility model is as follows:
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 only is a specific embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A combined type wheel hub oil seal structure is characterized in that the combined type wheel hub oil seal structure is suitable for being installed between a shaft body and a base body and comprises an outer ring framework (100), an inner ring sealing element (200) and a middle oil seal (300); wherein the content of the first and second substances,
the outer ring framework (100) is suitable for being connected to the seat body in a sealing mode;
the inner ring sealing element (200) is suitable for being hermetically sealed on the shaft body;
the middle oil seal (300) is arranged between the outer ring framework (100) and the inner ring sealing element (200), the middle oil seal (300) comprises a supporting framework (1) and a colloid connected to the supporting framework (1), and the colloid comprises an outer colloid part (2) connected to the outer periphery of the supporting framework (1) and a lip part (3) connected to the inner end part of the supporting framework (1);
the outer rubber part (2) is tightly matched and sealed with the inner side wall of the outer ring framework (100), and the lip part (3) is tightly matched and sealed with the outer side wall of the inner ring sealing element (200).
2. The unitized hub oil seal structure of claim 1,
the supporting framework (1) comprises a first frame body (4) extending along the axial direction and a second frame body (5) extending along the radial direction;
the outer end part of the second frame body (5) is connected to the lower end part of the first frame body (4);
the outer rubber part (2) is connected to the outer side wall of the first frame body (4);
the lip (3) is connected to the inner end of the second frame (5).
3. The unitized hub oil seal structure of claim 1,
the lip (3) comprises a sealing lip body (6) adapted to abut against the outer side wall of the inner ring seal (200) and a slag-stopping lip body (7) adapted to abut against the outer side wall of the inner ring seal (200).
4. The unitized hub oil seal structure of claim 1,
the inner ring seal (200) comprises a third carrier body (8) extending along the axis and a fourth carrier body (9) extending along the radial direction;
the outer end part of the fourth frame body (9) is connected to the lower end part of the third frame body (8);
the lip (3) is in sealing butt joint with the outer side wall of the third frame body (8);
the outer ring framework (100) comprises a fifth frame body (10) extending along the axial direction and a sixth frame body (11) extending along the radial direction;
the outer end part of the sixth frame body (11) is connected to the upper end part of the fifth frame body (10);
the outer rubber part (2) is in sealing butt joint with the inner side wall of the fifth frame body (10);
the middle oil seal (300) is positioned between the fourth frame body (9) and the sixth frame body (11).
5. The unitized hub oil seal structure of claim 4,
the lip (3) further comprises a limiting protrusion (12);
the upper end part of the third frame body (8) is also connected with a limiting frame body (13) which extends outwards along the radial direction;
the inner ring sealing element (200) is suitable for sliding relative to the outer ring framework (100) along the axial direction, when the inner ring sealing element (200) slides downwards along the axial direction to a certain position, the limiting frame body (13) abuts against the inner end part of the sixth frame body (11) to limit the downward sliding of the inner ring sealing element (200), and when the inner ring sealing element (200) slides upwards along the axial direction to a certain position, the fourth frame body (9) abuts against the limiting protrusion (12) to limit the upward sliding of the inner ring sealing element (200).
6. The unitized hub oil seal arrangement of claim 4, wherein the inner ring seal (200) further comprises an inner rubber portion (14) attached to an inner side wall of the third carrier (8) and adapted to sealingly engage the shaft body.
7. The combined hub oil seal structure according to claim 6, wherein the inner side wall of the inner rubber part (14) is provided with at least one sealing protrusion (15) extending along the circumferential direction of the inner rubber part (14).
8. The combined hub oil seal structure according to claim 4, wherein a mud blocking lip body (16) adapted to abut against the fifth frame body (10) is connected to the inner end portion of the fourth frame body (9).
9. The unitized hub oil seal structure of claim 8,
the mud blocking lip body (16) comprises a mud blocking upper lip and a mud blocking lower lip;
the upper mud blocking lip and the lower mud blocking lip are respectively suitable for being abutted against the inner side wall of the fifth frame body (10);
an elastic notch (17) is arranged between the upper mud blocking lip and the lower mud blocking lip.
10. The unitized hub oil seal structure of claim 4,
the outer ring framework (100) further comprises a seventh frame body (18);
the inner end part of the seventh frame body (18) is connected to the lower end part of the fifth frame body (10);
the seventh frame body (18) is provided with a plurality of speed measuring holes (19) which are sequentially arranged along the circumferential direction of the seventh frame body (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220678088.2U CN217073917U (en) | 2022-03-25 | 2022-03-25 | Combined hub oil seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220678088.2U CN217073917U (en) | 2022-03-25 | 2022-03-25 | Combined hub oil seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217073917U true CN217073917U (en) | 2022-07-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220678088.2U Active CN217073917U (en) | 2022-03-25 | 2022-03-25 | Combined hub oil seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217073917U (en) |
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2022
- 2022-03-25 CN CN202220678088.2U patent/CN217073917U/en active Active
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