CN203214650U - Hub bearing with multiple-cavity labyrinth seal structure - Google Patents
Hub bearing with multiple-cavity labyrinth seal structure Download PDFInfo
- Publication number
- CN203214650U CN203214650U CN 201220745187 CN201220745187U CN203214650U CN 203214650 U CN203214650 U CN 203214650U CN 201220745187 CN201220745187 CN 201220745187 CN 201220745187 U CN201220745187 U CN 201220745187U CN 203214650 U CN203214650 U CN 203214650U
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- China
- Prior art keywords
- bearing
- ring
- seal ring
- hub bearing
- seal
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- 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.)
- Expired - Lifetime
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- Sealing With Elastic Sealing Lips (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The utility model provides a hub bearing with a multiple-cavity labyrinth seal structure. The hub bearing mainly comprises a bearing outer ring, a bearing inner ring I, a bearing inner ring II, a retainer, a rolling body, an inner seal ring and an outer seal ring, wherein the retainer and the rolling body are arranged among the bearing outer ring and the bearing inner ring I and II, and the inner seal ring and the outer seal ring are arranged among the outer ring, the inner ring I and the inner ring II. The hub bearing with the multiple-cavity labyrinth seal structure is compact in design structure and has strong sealing performance; the working reliability of the bearing can be effectively improved, and the service life of the bearing can be effectively prolonged; the running safety and the operational performance of automobiles are improved by adopting the hub bearing.
Description
Technical field
The utility model relates to the improvement of a kind of automobile hub bearing and unit thereof, belongs to the critical component of automotive transmission.
Background technique
Automobile hub bearing and unit thereof, main effect is for automobile provides supporting, and provides accurate guiding for the rotation of automotive hub (wheel).
But the Environmental Conditions of hub bearing is quite abominable, directly contacts with water, mud, various dust.And the product analysis situation that lost efficacy from automobile hub bearing, a lot of damages all cause because of seal failure, after foreign matter such as the water in the bearing external world, mud, dust are invaded bearing inside, cause the erosion of bearing element part, the oxidation of grease, rotten, accelerate the wearing and tearing of bearing, and caused bearing failure to scrap.As seen, automobile hub bearing requires to have good sealing property.
Summary of the invention
Main purpose of the present utility model is the sealing at above-mentioned hub bearing, and structure is improved, and designs a kind of multi-cavity labyrinth seal structure hub bearing.Provide a kind of reasonable in design, can effectively improve automobile hub bearing and the unit thereof of ride safety of automobile, long service life.
The utility model is automobile hub bearing, mainly comprise bearing outer ring, bearing inner race I, bearing inner race II, retainer, rolling element, inner seal ring, exterior seal ring, be installed in retainer and rolling element between bearing outer ring and inner ring I, the II, be provided with inner seal ring and exterior seal ring between outer ring and inner ring I, the inner ring II.
Described exterior seal ring is provided with two lips, and described exterior seal ring is " L " shape skeleton, and circumference is surrounded by elastic caoutchouc on " L " shape skeleton.
Further, described inner seal ring is provided with two lips, and inner seal ring is " 7 " shape skeleton, and circumference is surrounded by elastic caoutchouc on " 7 " shape skeleton, and lip is elastic caoutchouc.Two lips contact with the diameter of axle of exterior seal ring, and inboard wall of skeleton contacts with two lips of exterior seal ring.What interior exterior seal ring constituted is by " 4 fit tightly " and " three seal chambers " multi-cavity labyrinth seal assembly.Scribble moderate lubrication fat in each Seal cage.
Further, described two inner rings, inner ring be assembled to the angle difference, the chamfering of an inner ring fully takes into account the security requirement that flange shaft diameter of axle root cooperates fillet, the chamfering of another inner ring takes into full account and transmission shaft plane contact area, increases area of contact, improves stressed relation.
The utility model project organization compactness, sealing is strong, can effectively improve functional reliability and the working life of bearing, improves driving safety and the usability of automobile.
Description of drawings
Accompanying drawing 1 is the utility model automobile hub bearing overall structure sectional view.
Accompanying drawing 2 is sealed structural representations of the present utility model.
The 1-bearing outer ring, 2-bearing inner race 1,3-bearing inner race 2,4-retainer, 5-rolling element, 6-inner seal ring, 7-exterior seal ring.
Five) embodiment
The utility model is described in further detail below in conjunction with embodiment, but protection domain of the present utility model is not limited to this.
With reference to Fig. 1, a kind of multi-cavity labyrinth seal structure hub bearing, comprise bearing outer ring 1, take into full account and transmission shaft plane contact area, increase area of contact, improve stressed relation little chamfering inner ring 2, fully take into account flange shaft diameter of axle root cooperate the security requirement of fillet big chamfering inner ring 3, be installed between retainer 4 between bearing outer ring 1 and the inner ring 2,3 and rolling element 5, outer ring 1 and inner ring 2, the inner ring 3 and be provided with inner seal ring 6 and exterior seal ring 7.
With reference to Fig. 2, circumference is surrounded by elastic caoutchouc on " L " shape framework material, and the exterior seal ring 7 that has two lip 7a, 7b to constitute, be surrounded by elastic caoutchouc with circumference on " 7 " shape framework material, and the inner seal ring 6 that has two lip 6a, 6b to constitute, after the installation combination, the black box of formation.The lip 7a of exterior seal ring effectively contacts with the diameter of axle inwall of inner seal ring, and lip 7b effectively contacts with inboard at the bottom of the inner seal ring.Lip 6a, the 6b of inner seal ring effectively contacts with the diameter of axle inwall of exterior seal ring.Interior exterior seal ring constitutes is by " 4 fit tightly " and " three seal chamber A, B, C " multi-cavity labyrinth seal assembly.Scribble moderate lubrication fat in each Seal cage.
The lip 7a of exterior seal ring effectively contacts with the diameter of axle inwall of inner seal ring, when dirts such as outside water, silt, dust corrode to bearing, be subjected to the effect of outside various power, it is tightr that the lip 7a on the exterior seal ring and the diameter of axle inwall of inner seal ring are fitted, and anti-sealing, silt, dust enter; Enter Seal cage A in a small amount even have, the lip 7b on the exterior seal ring effectively contacts with inboard at the bottom of the inner seal ring, fits closely, enter quite difficulty of Seal cage B again.And the possibility that enters Seal cage C will be littler.Lip 6a, the 6b of inner seal ring effectively contact with the diameter of axle inwall of exterior seal ring simultaneously, can stop lubricating grease to external leakage.And to pass through Seal cage C, B, A to external leakage difficulty successively.
Claims (3)
1. multi-cavity labyrinth seal structure hub bearing, mainly comprise bearing outer ring, bearing inner race I, bearing inner race II, retainer, rolling element, inner seal ring, exterior seal ring, be installed in retainer and rolling element between bearing outer ring and inner ring I, the II, be provided with inner seal ring and exterior seal ring between outer ring and inner ring I, the inner ring II.
2. a kind of multi-cavity labyrinth seal structure hub bearing as claimed in claim 1, it is characterized in that: described exterior seal ring is provided with two lips, and described exterior seal ring is " L " shape skeleton, and circumference is surrounded by elastic caoutchouc on " L " shape skeleton.
3. a kind of multi-cavity labyrinth seal structure hub bearing as claimed in claim 1, it is characterized in that: described inner seal ring is provided with two lips, and inner seal ring is " 7 " shape skeleton, and circumference is surrounded by elastic caoutchouc on " 7 " shape skeleton, and lip is elastic caoutchouc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220745187 CN203214650U (en) | 2012-12-31 | 2012-12-31 | Hub bearing with multiple-cavity labyrinth seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220745187 CN203214650U (en) | 2012-12-31 | 2012-12-31 | Hub bearing with multiple-cavity labyrinth seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203214650U true CN203214650U (en) | 2013-09-25 |
Family
ID=49204193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220745187 Expired - Lifetime CN203214650U (en) | 2012-12-31 | 2012-12-31 | Hub bearing with multiple-cavity labyrinth seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203214650U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103967938A (en) * | 2014-05-19 | 2014-08-06 | 浙江兆丰机电股份有限公司 | Sealing element of hub bearing unit of automobile |
-
2012
- 2012-12-31 CN CN 201220745187 patent/CN203214650U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103967938A (en) * | 2014-05-19 | 2014-08-06 | 浙江兆丰机电股份有限公司 | Sealing element of hub bearing unit of automobile |
| CN103967938B (en) * | 2014-05-19 | 2016-05-25 | 浙江兆丰机电股份有限公司 | A kind of automobile hub bearing seal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: HANGZHOU RADICAL ENERGY SAVING TECHNOLOGY CO., LTD Free format text: FORMER NAME: HANGZHOU RADICAL AUTOMOBILE PARTS INDUSRIAL CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: Hangzhou City, Zhejiang province 311200 block Bridge Economic and Technological Development Zone Chunchao Road No. 89 Patentee after: HANGZHOU RADICAL ENERGY-SAVING TECHNOLOGY CO.,LTD. Address before: Hangzhou City, Zhejiang province 311231 Xiaoshan economic and Technological Development Zone District Bridge Spring Road No. 89 Patentee before: HANGZHOU RADICAL AUTOMOBILE PARTS INDUSTRIAL Co.,Ltd. |
|
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: Hangzhou City, Zhejiang Province, 311231 blocks south of Xiaoshan economic and Technological Development Zone Chunchao Road No. 89 Patentee after: HANGZHOU RADICAL ENERGY-SAVING TECHNOLOGY CO.,LTD. Address before: Hangzhou City, Zhejiang province 311200 block Bridge Economic and Technological Development Zone Chunchao Road No. 89 Patentee before: HANGZHOU RADICAL ENERGY-SAVING TECHNOLOGY CO.,LTD. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20130925 |
|
| CX01 | Expiry of patent term |