CN219446627U - Hub structure and axle - Google Patents
Hub structure and axle Download PDFInfo
- Publication number
- CN219446627U CN219446627U CN202320489586.7U CN202320489586U CN219446627U CN 219446627 U CN219446627 U CN 219446627U CN 202320489586 U CN202320489586 U CN 202320489586U CN 219446627 U CN219446627 U CN 219446627U
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- wall
- locking
- hub
- groove
- sealing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
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- Rolling Contact Bearings (AREA)
Abstract
The utility model discloses a hub structure and an axle, wherein the hub structure comprises: the outer end of the hub is provided with a locking part and a sealing part positioned outside the locking part; the end cover is arranged on the outer end of the hub in a covering manner and is provided with an inner cavity, the inner cavity is provided with a closed end and an open end positioned on the inner side of the closed end, the open end is connected with the outer end of the hub and is provided with a first inner wall and a second inner wall, a locking piece is arranged between the first inner wall and the locking part, a sealing ring is arranged between the second inner wall and the sealing part, and the sealing ring is in tight contact with the second inner wall and the sealing part. Through this structural design, when the assembly end cover, can prevent that the sealing washer from receiving the axial extrusion force from end cover and wheel hub, reduce its friction shear force that receives for the wearing and tearing of sealing washer or deflection reduce, thereby increase of service life.
Description
Technical Field
The utility model relates to the technical field of automobile accessories, in particular to a hub structure and an axle.
Background
The existing hub structure comprises a hub and an end cover, wherein the end cover is arranged at the outer end of the hub, an annular step part is arranged on the peripheral wall of the opening end of the end cover, when the upper end cover is arranged on the outer end cover of the hub, the opening end is inserted into the outer end of the hub to be matched with the outer end of the hub, the step part is positioned outside the end face of the outer end of the hub, an installation gap is formed between the step part and the end face of the outer end of the hub, a sealing ring is filled in the installation gap, and two end faces of the sealing ring are respectively in tight contact with the step part and the outer end of the hub. However, the sealing ring with the structure is easy to wear or deform, so that the service life of the sealing ring is short.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model aims to provide a hub structure and an axle, which can prevent a sealing ring from being subjected to axial extrusion force, so that the abrasion or deformation of the sealing ring is reduced, and the service life is prolonged.
In order to achieve the above purpose, the embodiment of the present utility model adopts the following technical scheme:
a hub structure comprising: the outer end of the hub is provided with a locking part and a sealing part positioned outside the locking part; the end cover is arranged on the outer end of the hub in a covering mode and is provided with an inner cavity, the inner cavity is provided with a closed end and an open end located on the inner side of the closed end, the open end is connected with the outer end of the hub and is provided with a first inner wall and a second inner wall, a locking piece is arranged between the first inner wall and the locking portion, a sealing ring is arranged between the second inner wall and the sealing portion, and the sealing ring is in close contact with the second inner wall and the sealing portion.
Further, a groove is formed in one of the second inner wall and the outer peripheral wall of the sealing portion, and the sealing ring is clamped into the groove.
Further, the peripheral wall of the sealing part is provided with a groove inwards, and the groove is annular.
Further, an annular limiting groove is formed in the second inner wall outwards, an annular groove corresponding to the limiting groove is formed in the outer peripheral wall of the sealing portion inwards, and the sealing ring is clamped into the limiting groove and the groove and is in tight contact with the limiting groove and the inner wall of the groove.
Further, an annular locking groove is formed in the outer peripheral wall of the locking portion inwards, and the locking piece is clamped into the locking groove and is in close contact with the inner wall of the locking groove and the first inner wall.
Further, a locking groove is formed in the outer peripheral wall of the locking portion in an inward mode, the first inner wall corresponds to the locking groove and protrudes inwards to form the locking piece, and the locking piece is matched with the locking groove.
Further, the locking grooves are formed in a plurality, the locking grooves are distributed along the circumferential direction of the outer end of the hub, the locking pieces are formed in a plurality, one locking piece is tightly matched with one locking groove, and the locking piece and the end cover are integrally formed.
Further, the locking piece is an elastic gasket, and the diameter of the elastic gasket is larger than that of the sealing ring.
Further, the outer end of the hub is further provided with an external thread located between the locking part and the sealing part, an internal thread connected with the external thread is located between the first inner wall and the second inner wall, and the diameter of the first inner wall is larger than that of the second inner wall.
According to the hub structure, the sealing ring is arranged between the second inner wall and the sealing part, and is in close contact with the second inner wall and the sealing part, so that the sealing ring can be prevented from being subjected to axial extrusion force from the end cover and the hub when the end cover is assembled, the friction shearing force applied to the sealing ring is reduced, the abrasion or deformation of the sealing ring is reduced, and the service life is prolonged. In addition, the sealing ring is not exposed, so that the sealing ring is not easy to age.
The embodiment of the utility model also provides an axle, which comprises an axle and the hub structure of any embodiment, wherein the hub structure is arranged on the axle.
Drawings
FIG. 1 is a cross-sectional view of a hub structure in accordance with an embodiment of the present utility model;
fig. 2 is an enlarged view of a portion a of fig. 1.
Detailed Description
The utility model is further described below with reference to the drawings and detailed description:
as shown in fig. 1 to 2, an embodiment of the present utility model provides a hub structure mounted on a trailer axle, the hub structure including a hub 1 and an end cover 2, the end cover 2 being disposed on an outer end of the hub 1. The outer end of the hub 1 has a locking portion 11 and a sealing portion 12 located outside the locking portion 11, and the outer end of the hub 1 also has an external thread located between the locking portion 11 and the sealing portion 12.
The end cap 2 is screwed with the outer end of the hub 1 and has an inner cavity 20, the inner cavity 20 has a closed end 21 and an open end 22 located inside the closed end 21, the open end 22 is connected with the outer end of the hub 1 and has a first inner wall 221 and a second inner wall 222, an inner thread connected with the outer thread is provided between the first inner wall 221 and the second inner wall 222, and the diameter of the first inner wall 221 is larger than the diameter of the second inner wall 222 to provide a sufficient installation space. The first inner wall 221 corresponds to the locking part 11 and is provided with a locking piece 3 therebetween, and the locking piece 3 is used for radially limiting the hub 1 and preventing the hub 1 from loosening. The second inner wall 222 corresponds to the sealing portion 12 with a sealing ring 4 therebetween, and the sealing ring 4 is in close contact with the second inner wall 222 and the sealing portion 12, specifically, the sealing ring 4 is an O-ring. By providing the seal ring 4 between the second inner wall 222 and the sealing portion 12, when the end cap 2 is assembled, the seal ring 4 can be prevented from receiving an axial pressing force from the end cap 2 and the hub 1, and a frictional shearing force applied thereto is reduced, so that the abrasion or deformation amount of the seal ring 4 is reduced, thereby prolonging the service life. In addition, the sealing ring 4 is not exposed, so that the sealing ring is not easy to age, and the service life is further prolonged.
One of the second inner wall 222 and the outer peripheral wall of the sealing portion 12 is provided with a groove 121 for installing the sealing ring 4, in this embodiment, the outer peripheral wall of the sealing portion 12 is provided with the groove 121, the groove 121 is annular, and the sealing ring 4 is clamped into the groove 121, however, in other embodiments, in order to improve the positioning stability of the sealing ring 4, the following structure may be adopted: the second inner wall 222 is provided with an annular limiting groove outwards, the outer peripheral wall of the sealing part 12 is provided with an annular groove 121 corresponding to the limiting groove inwards, and the sealing ring 4 is clamped into the limiting groove and the groove 121 and is in tight contact with the inner walls of the limiting groove and the groove 121.
An annular locking groove 111 for mounting the locking member 3 is formed in the outer peripheral wall of the locking portion 11, and the locking member 3 is engaged in the locking groove 111 and is in close contact with the inner wall of the locking groove 111 and the first inner wall 221. The locking piece 3 is an elastic washer, in this embodiment, an O-ring is selected as the elastic washer, the diameter of the elastic washer is larger than that of the sealing ring 4, the hub 1 can be radially limited by the elastic washer, the hub 1 is prevented from loosening, and the elastic washer has elasticity, so that the elastic washer has a certain sealing function, and the sealing performance of the inner cavity 20 of the hub is further improved. In other embodiments, the outer peripheral wall of the locking portion 11 is provided with a plurality of locking grooves 111, the first inner wall 221 protrudes inwards corresponding to the locking grooves 111 to form the locking piece 3, the locking piece 3 is matched with the locking grooves 111 to limit the hub 1 in the radial direction, the hub 1 is prevented from loosening, specifically, the plurality of locking grooves 111 are distributed along the circumferential direction of the outer end of the hub 1, the plurality of locking pieces 3 are correspondingly provided, one locking piece 3 is tightly matched with one locking groove 111, and the locking piece 3 and the end cover 2 are integrally formed for simplifying the structure and enhancing the structural strength. The design of the plurality of locking elements 3 can further enhance the positioning stability of the hub 1.
According to the hub structure, the sealing ring is arranged between the second inner wall and the sealing part, and is in close contact with the second inner wall and the sealing part, so that the sealing ring can be prevented from being subjected to axial extrusion force from the end cover and the hub when the end cover is assembled, the friction shearing force applied to the sealing ring is reduced, the abrasion or deformation of the sealing ring is reduced, and the service life is prolonged. In addition, the sealing ring is not exposed, so that the sealing ring is not easy to age.
The embodiment of the utility model also provides an axle (not shown) which comprises an axle (not shown) and the hub structure in any embodiment, wherein the hub structure is arranged on the axle. In this embodiment, the axle is a trailing axle.
The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that modifications may be made to the technical solutions described in the foregoing embodiments or equivalents may be substituted for some of the technical features thereof, and these modifications or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model in essence.
Claims (10)
1. Hub structure, its characterized in that includes:
the outer end of the hub is provided with a locking part and a sealing part positioned outside the locking part;
the end cover is arranged on the outer end of the hub in a covering mode and is provided with an inner cavity, the inner cavity is provided with a closed end and an open end located on the inner side of the closed end, the open end is connected with the outer end of the hub and is provided with a first inner wall and a second inner wall, a locking piece is arranged between the first inner wall and the locking portion, a sealing ring is arranged between the second inner wall and the sealing portion, and the sealing ring is in close contact with the second inner wall and the sealing portion.
2. The hub structure of claim 1, wherein one of said second inner wall and said peripheral wall of said sealing portion is provided with a groove, and said seal ring is engaged in said groove.
3. The hub structure of claim 2, wherein the peripheral wall of the sealing portion is inwardly provided with a groove, and the groove is annular.
4. The hub structure of claim 1, wherein the second inner wall is provided with an annular limiting groove, an annular groove corresponding to the limiting groove is provided on the outer peripheral wall of the sealing portion inwards, and the sealing ring is clamped into the limiting groove and the groove and is in close contact with the limiting groove and the inner wall of the groove.
5. The hub structure of claim 1, wherein an annular locking groove is formed in an outer peripheral wall of the locking portion, and the locking member is engaged in the locking groove and is in close contact with an inner wall of the locking groove and the first inner wall.
6. The hub structure of claim 1, wherein the outer peripheral wall of the locking portion is provided with a locking groove therein, the first inner wall protrudes inward corresponding to the locking groove to form the locking member, and the locking member is engaged with the locking groove.
7. The hub structure of claim 6, wherein said plurality of locking grooves are distributed along a circumference of said hub outer end, said plurality of locking members, one of said locking members being in close fit with one of said locking grooves, said locking member being integrally formed with said end cap.
8. The hub structure of claim 1, wherein said locking member is an elastomeric washer having a diameter greater than a diameter of said seal ring.
9. The hub structure of claim 1, wherein the outer end of the hub further has an external thread between the locking portion and the sealing portion, wherein the first inner wall and the second inner wall have an internal thread therebetween that is coupled to the external thread, and wherein the diameter of the first inner wall is greater than the diameter of the second inner wall.
10. Axle, characterized by comprising an axle and a hub structure according to any one of claims 1 to 9, said hub structure being mounted on said axle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320489586.7U CN219446627U (en) | 2023-03-15 | 2023-03-15 | Hub structure and axle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320489586.7U CN219446627U (en) | 2023-03-15 | 2023-03-15 | Hub structure and axle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219446627U true CN219446627U (en) | 2023-08-01 |
Family
ID=87384810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320489586.7U Active CN219446627U (en) | 2023-03-15 | 2023-03-15 | Hub structure and axle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219446627U (en) |
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2023
- 2023-03-15 CN CN202320489586.7U patent/CN219446627U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |