CN220151893U - Novel rear hub oil seal - Google Patents
Novel rear hub oil seal Download PDFInfo
- Publication number
- CN220151893U CN220151893U CN202223568205.9U CN202223568205U CN220151893U CN 220151893 U CN220151893 U CN 220151893U CN 202223568205 U CN202223568205 U CN 202223568205U CN 220151893 U CN220151893 U CN 220151893U
- Authority
- CN
- China
- Prior art keywords
- rear hub
- lip
- oil seal
- novel
- hub oil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000007789 sealing Methods 0.000 claims abstract description 11
- 239000002184 metal Substances 0.000 claims description 10
- YAFQFNOUYXZVPZ-UHFFFAOYSA-N liproxstatin-1 Chemical compound ClC1=CC=CC(CNC=2C3(CCNCC3)NC3=CC=CC=C3N=2)=C1 YAFQFNOUYXZVPZ-UHFFFAOYSA-N 0.000 description 7
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Sealing With Elastic Sealing Lips (AREA)
Abstract
The utility model relates to the technical field of oil seals, in particular to a novel rear hub oil seal which is of a ring structure and is 5-shaped in cross section, and comprises an inner lip of a hook part and an outer lip of a crutch part, wherein the inner lip is sleeved with a clamping spring, and the longitudinal and transverse two sides of the outer lip are respectively attached to a half shaft and a rear hub. The utility model improves the existing multi-lip structure oil seal, is simpler and has better sealing performance of the outer lip.
Description
Technical Field
The utility model relates to the technical field of oil seals, in particular to a novel rear hub oil seal.
Background
The existing rear hub oil seal has a single-lip structure and a multi-lip structure, the former is simple in structure and low in cost, but the sealing performance is not very good, and the sealing performance of the latter depends on the oil seal structure and the cooperation between the lip and the rear hub and the half shaft.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provide a novel rear hub oil seal which comprises an inner lip structure and an outer lip structure, wherein two side surfaces of the outer lip are respectively attached to a hub and a half shaft, so that the tightness is improved.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a novel back wheel hub oil blanket, it is the ring structure, and the cross-section is "5" font, including the inner lip of hook portion and the outer lip of turning portion, the inner lip cover has the binding spring, the aspect both sides of outer lip are laminated with semi-axis, back wheel hub respectively.
Further, the rear hub oil seal comprises a -shaped metal framework and a sealing layer adhered to the metal framework, wherein the lower transverse right end of the -shaped metal framework is provided with an arc-shaped folded edge which faces downwards by 90 degrees.
Further, the section of the inner lip is triangular, the vertex angle of the abutting half shaft is an obtuse angle, a groove is formed in the inner side of the inner lip corresponding to the obtuse angle, and the tightening spring is a closed-loop spring and is sleeved in the groove.
Further, the length of the two sides of the outer lip, the half shaft and the rear hub, which are attached, is more than 7mm.
The beneficial effects of the utility model are as follows: the utility model provides a novel back wheel hub oil blanket, it is the ring structure, and the cross-section is "5" font, including the inner lip of hook portion and the outer lip of turning portion, the inner lip cover has the binding spring, the aspect both sides of outer lip are laminated with semi-axis, back wheel hub respectively. The utility model improves the existing multi-lip structure oil seal, is simpler and has better sealing performance of the outer lip.
Drawings
FIG. 1 is a cross-sectional view of the present utility model;
fig. 2 is a schematic view of the structure of the present utility model used in the rear hub.
Reference numerals illustrate:
1-inner lip, 2-outer lip, 3-fastening spring, 4-metal framework and 5-sealing layer.
Detailed Description
The utility model will now be described in further detail with reference to the drawings and the specific embodiments, without limiting the scope of the utility model.
As shown in fig. 1 and 2, the novel rear hub oil seal of the embodiment is of a circular ring structure, the section of the novel rear hub oil seal is in a shape of a Chinese character '5', the novel rear hub oil seal comprises an inner lip 1 of a hook part and an outer lip 2 of a crutch part, the inner lip 1 is sleeved with a fastening spring 3, and the longitudinal and transverse sides of the outer lip 2 are respectively attached to a half shaft and a rear hub.
The embodiment improves the existing multi-lip rear hub oil seal, has a simpler structure, adopts a -shaped metal framework 4, and uses the outer side adhesive rubber as a sealing layer 5, wherein the lower transverse right end of the -shaped metal framework 4 is provided with an arc-shaped folded edge with a downward angle of 90 degrees, the sealing layer 5 is adhered on the inner side and the outer side of the folded edge, and extends to the inner side of the folded edge to form the inner lip 1 formed by rubber; the section of the inner lip 1 is triangular, and the vertex angle of the abutting half shaft is an obtuse angle, and because no framework in the inner lip 1 has flexibility, the inner lip 1 is sleeved with an annular tensioning sleeve (a closed-loop spring in the embodiment), and the inner lip 1 is tightly clamped on the half shaft.
The sealing layer 5 is adhered to the transverse edge, the vertical edge and the wrapping transverse edge end part of the upper end of the shape of the metal framework 4 to form the outer lip 2, the outer lip 2 is tightly attached to the rear hub and the half shaft, and the two side edges of the outer lip 2 are of a certain length, so that a better sealing effect is achieved, and the length of the two side edges of the outer lip is not less than 7mm.
Finally, it should be noted that the foregoing embodiments are merely for illustrating the technical solution of the present utility model, and the front, rear, left, right, upper, middle, lower, etc. directions adopted for the description of the technical solution are set based on the drawings, not limiting the scope of the present utility model, although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made to the technical solution of the present utility model without departing from the spirit and scope of the technical solution of the present utility model.
Claims (4)
1. The utility model provides a novel back wheel hub oil blanket which characterized in that: the novel bicycle is of a ring structure, the cross section of the novel bicycle is in a 5 shape, the novel bicycle comprises an inner lip of a hook part and an outer lip of a crutch part, the inner lip is sleeved with a fastening spring, and the longitudinal and transverse two surfaces of the outer lip are respectively attached to a half shaft and a rear hub.
2. The novel rear hub oil seal of claim 1, wherein: the rear hub oil seal comprises a -shaped metal framework and a sealing layer adhered to the metal framework, wherein the lower transverse right end of the -shaped metal framework is provided with an arc-shaped folded edge which faces downwards by 90 degrees.
3. The novel rear hub oil seal of claim 1, wherein: the section of the inner lip is triangular, the vertex angle of the abutting half shaft is an obtuse angle, a groove is formed in the inner side of the inner lip corresponding to the obtuse angle, and the tight-loop spring is a closed-loop spring and is sleeved in the groove.
4. The novel rear hub oil seal of claim 1, wherein: the length of two sides of the outer lip, which are attached to the half shaft and the rear hub, is more than 7mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223568205.9U CN220151893U (en) | 2022-12-29 | 2022-12-29 | Novel rear hub oil seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223568205.9U CN220151893U (en) | 2022-12-29 | 2022-12-29 | Novel rear hub oil seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220151893U true CN220151893U (en) | 2023-12-08 |
Family
ID=89019480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223568205.9U Active CN220151893U (en) | 2022-12-29 | 2022-12-29 | Novel rear hub oil seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220151893U (en) |
-
2022
- 2022-12-29 CN CN202223568205.9U patent/CN220151893U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |