CN104847788A - Automobile hub bearing unit - Google Patents
Automobile hub bearing unit Download PDFInfo
- Publication number
- CN104847788A CN104847788A CN201510271368.6A CN201510271368A CN104847788A CN 104847788 A CN104847788 A CN 104847788A CN 201510271368 A CN201510271368 A CN 201510271368A CN 104847788 A CN104847788 A CN 104847788A
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- CN
- China
- Prior art keywords
- ring
- flange plate
- inner ring
- sealing
- cover
- 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.)
- Pending
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Classifications
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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 invention discloses an automobile hub bearing unit and belongs to the field of automobile hub bearings. The automobile hub bearing unit comprises a flange plate outer ring, a flange plate inner ring, a small inner ring, rolling bodies, a retaining rack, an ABS (Anti-lock Braking System) sensing mechanism, a first sealing mechanism and a second sealing mechanism, wherein four step-shaped outer rolling channels are formed in the inner surface of a through hole of the flange plate outer ring; the small inner ring is fixedly arranged on the flange plate inner ring in a sleeving manner; two inner rolling channels are respectively formed in the outer surface of each of the flange plate inner ring and the small inner ring; the two inner rolling channels in the small inner ring are in one-to-one correspondence with the two outer rolling channels, close to the front end, of the flange plate outer ring; the two inner rolling channels of the flange plate inner ring are in one-to-one correspondence with the two outer rolling channels, close to the rear end, of the flange plate outer ring; the rolling bodies are four rows of steel balls which are mounted between four rows of corresponding outer rolling channels and inner rolling channels by virtue of the retaining rack; the first sealing mechanism comprises a sealing cover, a dustproof cover and a first sealing ring; the second sealing mechanism comprises a retainer ring and a second sealing ring. The automobile hub bearing unit is low in friction, high in rotation rate and long in service life.
Description
Technical field
The invention belongs to automobile hub bearing field, especially relevant with a kind of automobile hub bearing.
Background technique
Hub bearing is applied to Automobile shaft place to be used for load-bearing and provide the component accurately guided for the rotation of wheel hub, and not only bearing thrust load but also bear radial load, is the important component part of carload and rotation.Existing common hub-bearing unit middle (center) bearing adopts double-row conical bearing, tapered roller bearing is linear contact lay between tapered roller and raceway in operation process, frictional force is larger, and bearing interior space is less, filling oil quantity is less, bearing operation temperature is made to increase fast, fuel oil oil consumption is large, working life is relatively short, Ye You manufacturer adopts the hub bearing of multiple row roller structure, but sealing effect is relatively poor, when bearing is applied on heavy-duty vehicle, because Environmental Conditions is relatively more severe, make the working life of bearing lower.
Summary of the invention
Object of the present invention is intended to overcome above-mentioned defect, provides the heavily loaded multiple row spherical structure automobile hub bearing that a kind of frictional force is little, rotating speed is high.
For this reason, the present invention is by the following technical solutions: a kind of automobile hub bearing, comprise flange plate outer ring, flange plate inner ring, little inner ring, rolling element, retainer and ABS sensing mechanism, it is characterized in that, the through-hole inner surface of described flange plate outer ring is provided with the outer raceway of four step types, described little inner ring fixed cover is loaded on described flange plate inner ring, the outer surface of flange plate inner ring and little inner ring is respectively arranged with two interior raceways, two interior raceways on little inner ring respectively with described flange plate outer ring near two outer raceway one_to_one corresponding of front end, two interior raceways on described flange plate inner ring respectively with described flange plate outer ring near two outer raceway one_to_one corresponding of rear end, described rolling element is four row steel balls, four row steel balls are all installed between outer raceway corresponding to four described row and interior raceway by described retainer, described automobile hub bearing also comprises the first sealing mechanism and the second sealing mechanism, first sealing mechanism comprises sealing cover, dust cover and the first seal ring, described dust cover and sealing cover all comprise the pipe portion and annular portion that are connected as a single entity, its cross section is made all to become L shape, dust cover pipe portion fixed cover is loaded on the outer surface of little inner ring, dust cover annular portion is positioned at outside dust cover pipe portion, flange plate outer ring internal surface is fixed on and corresponding with dust cover pipe position in sealing cover pipe portion, sealing cover annular portion is positioned at inside sealing cover pipe portion corresponding with dust cover annular portion, sealing cover is relative with dust cover forms the first Seal cage, described first seal ring is arranged in this first Seal cage, and to be joined with described sealing cover card by draw-in groove and be fixedly connected with, described first seal ring comprises main body and three sealing lips, these three equal Elastic Contact of sealing lip are in dust cover, play dustproof baffle mud and seal action, the second described sealing mechanism comprises back-up ring and the second seal ring, back-up ring comprises the installation pipe portion and block pipe portion that support annular portion and be connected with this support annular portion one, the installation pipe portion fixed cover of back-up ring is loaded on one end outer surface of described flange plate outer ring near flange plate inner ring root, the flange end face of described flange plate inner ring is provided with the protection bench with two circular step faces, protection bench is relative with described back-up ring forms the second Seal cage, described second seal ring is arranged in this second Seal cage, second seal ring to be joined with described back-up ring card by draw-in groove and is fixedly connected with, the second described seal ring comprises main body and three sealing lips, three equal Elastic Contact of sealing lip are on described protection bench, play dustproof baffle mud and seal action.
The present invention can reach following beneficial effect: this hub-bearing unit multiple row raceway groove, the point cantact of ball is utilized to replace the linear contact lay of tapered roller, thus pivot friction is significantly reduced, steel ball replacement tapered roller is utilized to improve the space of product, increase and fill out fat amount, significantly reduce bearing operation temperature, decrease the consumption of fuel oil, multiple row raceway groove is utilized effectively to improve the space availability ratio of product, breach the narrow limitation because steel ball size, wall thickness carry product, effectively improve the bearing capacity of product, extend the working life of product.
Accompanying drawing explanation
Fig. 1 is the present invention's axial cross-sectional views of the present invention.
Fig. 2 is a place enlarged diagram in Fig. 1.
Fig. 3 is b place enlarged diagram in Fig. 1.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.
As shown in Fig. 1 ~ Fig. 3, the present invention includes flange plate outer ring 1, flange plate inner ring 4, little inner ring 3, rolling element 6, retainer 2 and ABS sensing mechanism, it is characterized in that, the through-hole inner surface of described flange plate outer ring 1 is provided with the outer raceway of four step types, described little inner ring 3 fixed cover is loaded on described flange plate inner ring 4, the outer surface of flange plate inner ring 4 and little inner ring 3 is respectively arranged with two interior raceways, two interior raceways on little inner ring 3 respectively with described flange plate outer ring 1 near two outer raceway one_to_one corresponding of front end, two interior raceways on described flange plate inner ring 4 respectively with described flange plate outer ring 1 near two outer raceway one_to_one corresponding of rear end, described rolling element 6 is four row steel balls, four row steel balls are all installed between outer raceway corresponding to four described row and interior raceway by described retainer 2, described automobile hub bearing also comprises the first sealing mechanism 5 and the second sealing mechanism 7, first sealing mechanism 5 comprises sealing cover 53, dust cover 51 and the first seal ring 52, described dust cover 51 and sealing cover 53 all comprise the pipe portion and annular portion that are connected as a single entity, its cross section is made all to become L shape, dust cover 51 pipe portion fixed cover is loaded on the outer surface of little inner ring 3, dust cover 51 annular portion is positioned at outside dust cover 51 pipe portion, flange plate outer ring 1 internal surface is fixed on and corresponding with dust cover 51 pipe position in sealing cover 53 pipe portion, sealing cover 53 annular portion is positioned at inside sealing cover 53 pipe portion corresponding with dust cover 51 annular portion, sealing cover 53 composition first relative to dust cover 51 Seal cage, described first seal ring 52 is arranged in this first Seal cage, and block to join with described sealing cover 53 by draw-in groove and be fixedly connected with, described first seal ring 52 comprises main body and three sealing lips, these three equal Elastic Contact of sealing lip are in dust cover 51, play dustproof baffle mud and seal action, the second described sealing mechanism 7 comprises back-up ring 71 and the second seal ring 72, back-up ring 71 comprises the installation pipe portion and block pipe portion that support annular portion and be connected with this support annular portion one, the installation pipe portion fixed cover of back-up ring 71 is loaded on one end outer surface of described flange plate outer ring 1 near flange plate inner ring 4 root, the flange end face of described flange plate inner ring 4 is provided with the protection bench 41 with two circular step faces, protection bench 41 is relative with described back-up ring 71 forms the second Seal cage, described second seal ring 72 is arranged in this second Seal cage, second seal ring 72 blocks to join with described back-up ring 71 by draw-in groove and is fixedly connected with, the second described seal ring 72 comprises main body and three sealing lips, three equal Elastic Contact of sealing lip are on described protection bench 41, play dustproof baffle mud and seal action.
Claims (1)
1. an automobile hub bearing, comprise flange plate outer ring, flange plate inner ring, little inner ring, rolling element, retainer and ABS sensing mechanism, it is characterized in that: the through-hole inner surface of described flange plate outer ring is provided with the outer raceway of four step types, described little inner ring fixed cover is loaded on described flange plate inner ring, the outer surface of flange plate inner ring and little inner ring is respectively arranged with two interior raceways, two interior raceways on little inner ring respectively with described flange plate outer ring near two outer raceway one_to_one corresponding of front end, two interior raceways on described flange plate inner ring respectively with described flange plate outer ring near two outer raceway one_to_one corresponding of rear end, described rolling element is four row steel balls, four row steel balls are all installed between outer raceway corresponding to four described row and interior raceway by described retainer, described automobile hub bearing also comprises the first sealing mechanism and the second sealing mechanism, first sealing mechanism comprises sealing cover, dust cover and the first seal ring, described dust cover and sealing cover all comprise the pipe portion and annular portion that are connected as a single entity, its cross section is made all to become L shape, dust cover pipe portion fixed cover is loaded on the outer surface of little inner ring, dust cover annular portion is positioned at outside dust cover pipe portion, flange plate outer ring internal surface is fixed on and corresponding with dust cover pipe position in sealing cover pipe portion, sealing cover annular portion is positioned at inside sealing cover pipe portion corresponding with dust cover annular portion, sealing cover is relative with dust cover forms the first Seal cage, described first seal ring is arranged in this first Seal cage, and to be joined with described sealing cover card by draw-in groove and be fixedly connected with, described first seal ring comprises main body and three sealing lips, these three equal Elastic Contact of sealing lip are in dust cover, the second described sealing mechanism comprises back-up ring and the second seal ring, back-up ring comprises the installation pipe portion and block pipe portion that support annular portion and be connected with this support annular portion one, the installation pipe portion fixed cover of back-up ring is loaded on one end outer surface of described flange plate outer ring near flange plate inner ring root, the flange end face of described flange plate inner ring is provided with the protection bench with two circular step faces, protection bench is relative with described back-up ring forms the second Seal cage, described second seal ring is arranged in this second Seal cage, second seal ring to be joined with described back-up ring card by draw-in groove and is fixedly connected with, the second described seal ring comprises main body and three sealing lips, three equal Elastic Contact of sealing lip are on described protection bench.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510271368.6A CN104847788A (en) | 2015-05-25 | 2015-05-25 | Automobile hub bearing unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510271368.6A CN104847788A (en) | 2015-05-25 | 2015-05-25 | Automobile hub bearing unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104847788A true CN104847788A (en) | 2015-08-19 |
Family
ID=53847673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510271368.6A Pending CN104847788A (en) | 2015-05-25 | 2015-05-25 | Automobile hub bearing unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104847788A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112576618A (en) * | 2020-12-24 | 2021-03-30 | 浙江万向精工有限公司 | Wheel hub bearing unit with three rows of rolling bodies |
| CN113669364A (en) * | 2021-08-03 | 2021-11-19 | 人本股份有限公司 | Hub bearing structure |
| CN113700736A (en) * | 2021-09-07 | 2021-11-26 | 浙江鸿宁轴承科技有限公司 | High-wear-resistance multilayer sealed automobile hub bearing |
-
2015
- 2015-05-25 CN CN201510271368.6A patent/CN104847788A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112576618A (en) * | 2020-12-24 | 2021-03-30 | 浙江万向精工有限公司 | Wheel hub bearing unit with three rows of rolling bodies |
| CN113669364A (en) * | 2021-08-03 | 2021-11-19 | 人本股份有限公司 | Hub bearing structure |
| CN113700736A (en) * | 2021-09-07 | 2021-11-26 | 浙江鸿宁轴承科技有限公司 | High-wear-resistance multilayer sealed automobile hub bearing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150819 |