CN202834075U - Separating lower seal structure for third generation wheel hub bearing units - Google Patents
Separating lower seal structure for third generation wheel hub bearing units Download PDFInfo
- Publication number
- CN202834075U CN202834075U CN2012204004281U CN201220400428U CN202834075U CN 202834075 U CN202834075 U CN 202834075U CN 2012204004281 U CN2012204004281 U CN 2012204004281U CN 201220400428 U CN201220400428 U CN 201220400428U CN 202834075 U CN202834075 U CN 202834075U
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- ring
- bearing
- lower seal
- seal structure
- wall
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- Expired - Fee Related
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- 239000002184 metal Substances 0.000 claims abstract description 14
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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Abstract
The utility model relates a separating lower seal structure for the third generation wheel hub bearing units. The object is to provide a seal structure which is simple in structure and easy to install. The technical scheme includes: the separating lower seal structure for third generation wheel hub bearing units is characterized in that the separating lower seal structure is arranged between a bearing outer ring of a wheel hub bearing unit and a flange, and is fixed on one end of the bearing outer ring which is near a car wheel; the separating lower seal structure consists of a ring-shaped rubber seal ring and a ring-shaped metal retaining ring, the inside wall of the ring-shaped rubber seal ring which is near the center of a car is provided with a circle of positioning bulge loop:a positioning groove matched with the positioning bulge loop is reserved on the outer wall of the bearing outer ring:the other end of the ring-shaped rubber seal ring stays close to the outer wall of the flange, the ring-shaped metal retaining ring is arranged on the rubber seal ring on the bearing outer ring, the other end of the ring-shaped metal retaining ring extends to the outer wall of the flange; one end of the ring-shaped rubber seal ring which stays close to the flange is provided with more than two bifurcated ends.
Description
Technical field
The utility model relates to a kind of hub-bearing unit, and specifically third generation hub-bearing unit separated type lower seal structure belongs to automobile technical field.
Background technique
The Main Function of automobile hub bearing is load-bearing and for the rotation of wheel hub provides accurate guiding, and it not only bears thrust load but also bear radial load, is a very important device.Hub-bearing unit is to grow up on the basis of standard angle contact ball bearing and tapered roller bearing, it is made two sleeves and is integrated, have the assembling performance good, can omit play adjustment, lightweight, compact structure, load bearing capacity large, omit the external hub sealing and avoid the advantage such as maintenance, be widely used in the car, in truck, also had progressively to enlarge the trend of using.
The structure of conventional wheel hub bearing unit as shown in Figure 5, comprise flange plate for stationary hub, be fixed on the vehicle frame and and the outer ring of flange plate coupling, be installed in ball between outer ring and the flange plate, be used for the inner ring spacing to described ball, and for upper black box (ring-type is with sensor) and lower seal assembly (ring-type) with the space sealing between outer ring and the flange plate.Described inner ring is set on the flange plate, prevents the ball slippage out; Described upper black box and lower seal assembly are installed in respectively the two ends of outer ring, and the space-filling between outer ring and the flange plate has lubriation material.The lower seal assembly of this type of hub-bearing unit is comprised of metal frame 10 and rubber ring 11 as shown in Figure 6, and its structure is comparatively complicated, and need to be pressed into press when installing, and operator's the instrument amount of carrying is more, and operation is trouble comparatively also.
Summary of the invention
The purpose of this utility model is the deficiency that overcomes in the above-mentioned background technology, and a kind of third generation hub bearing separated type lower seal structure is provided, and the sealing structure should have characteristics simple in structure, easy for installation.
The technical solution adopted in the utility model is: third generation hub-bearing unit separated type lower seal structure, it is characterized in that: described lower seal structure is between the bearing outer ring and flange plate of hub-bearing unit, be fixed on bearing outer ring near an end of automotive hub, described lower seal structure is comprised of the rubber seal of a ring-type and the metal collar of a ring-type, described rubber seal is shaped with a delineation position bulge loop near the inwall of autocentre one end, the outer wall of bearing outer ring offers the positioning groove with described positioning convex ring coupling, and the other end of rubber seal is adjacent to the outer wall of flange plate; Described metal collar lock ring is on the rubber seal at bearing outer ring place, and the other end stretches out to the outer wall of flange plate.
The end that described rubber seal is adjacent to flange plate is shaped with at least two divergent ends.
Installation method of the present utility model is: first the rubber seal banding (is relied on the elasticity assembling of rubber seal own) on bearing outer ring, positioning convex ring embeds in the positioning groove, afterwards with the metal collar banding outside rubber seal, the rubber seal banding is not come off on the outer ring, and then the parts such as outer ring, ball, upper Sealing are installed.
The beneficial effects of the utility model are: the rubber seal in the utility model and metal collar are separated type, can be installed separately, and need not to use the instruments such as press, easy to use and structure is also comparatively simple, produce also more conveniently, manufacture cost is lower, has preferably market prospects.
Description of drawings
Fig. 1 is sectional structure schematic diagram of the present utility model.
Fig. 2 is the structural representation of metal collar among Fig. 1.
Fig. 3 is the sectional view that is provided with hub-bearing unit of the present utility model.
Fig. 4 is the enlarged diagram of A section among Fig. 3.
Fig. 5 is the cross-sectional schematic of conventional wheel hub bearing unit.
Fig. 6 is the enlarged diagram of B section among Fig. 4.
Embodiment
Below in conjunction with Figure of description, the utility model is described in further detail, but the utility model is not limited to following examples.
As shown in Figure 3, third generation hub-bearing unit comprises for passing through 4-5 fastened by screw between the flange plate 6(flange plate of fixed car wheel hub and the automotive hub), this flange plate forms integral body (being that flange plate and bearing inner ring are one-body molded) near a side (Fig. 3 left direction) at car body center with bearing inner ring 8.Be arranged with on the described bearing inner ring one with the bearing outer ring 4 of its coaxial arrangement, this bearing outer ring is fixed by screws on the car body of automobile, be provided with two groups of bearing balls 9 in the space between bearing outer ring and the bearing inner ring, the two ends in this space are positioned at respectively a side at close car body center by upper Sealing 7 and the upper Sealing of lower seal 5(, lower seal is positioned at the side near automotive hub), be filled with lubricant oil in the space of sealing to reduce force of rolling friction.
As shown in Figure 1 and Figure 2, third generation hub bearing separated type lower seal structure described in the utility model between the bearing outer ring and flange plate of hub-bearing unit, is fixed on bearing outer ring near an end of automotive hub.Described lower seal structure is comprised of the rubber seal 2 of a ring-type and the metal collar 1 of a ring-type, described rubber seal is shaped with a delineation position bulge loop 3 near the inwall of autocentre one end, the outer wall of bearing outer ring offers the positioning groove 4-1 with described positioning convex ring coupling, and the other end of rubber seal is adjacent to the outer wall of flange plate; Described metal collar lock ring is on the rubber seal at bearing outer ring place, and the other end stretches out certain distance with rain cover (distance is less between the outer wall of metal collar and flange plate) to the outer wall of flange plate, prevents that rainwater from directly impacting rubber seal.Be to guarantee that it is the 30-60 degree that a end that sealing, described rubber seal are adjacent to flange plate is shaped with at least two divergent ends 1-1(two divergent ends angles, cross section is fish tail shape), two divergent ends are adjacent to respectively the outer wall of flange plate.
Claims (2)
1. third generation hub-bearing unit separated type lower seal structure, it is characterized in that: described lower seal structure is positioned between the bearing outer ring (4) and flange plate (6) of hub-bearing unit, be fixed on bearing outer ring near an end of automotive hub, described lower seal structure is comprised of the seal ring (1) of a ring-type and the metal collar (2) of a ring-type, described seal ring is shaped with a delineation position bulge loop (3) near the inwall of autocentre one end, the outer wall of bearing outer ring offers the positioning groove (4-1) with described positioning convex ring coupling, and the other end of seal ring is adjacent to the outer wall of flange plate; Described metal collar lock ring is on the seal ring at bearing outer ring place, and the other end stretches out to the outer wall of flange plate.
2. third generation hub-bearing unit separated type lower seal structure according to claim 1, it is characterized in that: the end that described seal ring is adjacent to flange plate is shaped with at least two divergent ends (1-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204004281U CN202834075U (en) | 2012-08-13 | 2012-08-13 | Separating lower seal structure for third generation wheel hub bearing units |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204004281U CN202834075U (en) | 2012-08-13 | 2012-08-13 | Separating lower seal structure for third generation wheel hub bearing units |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202834075U true CN202834075U (en) | 2013-03-27 |
Family
ID=47945784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012204004281U Expired - Fee Related CN202834075U (en) | 2012-08-13 | 2012-08-13 | Separating lower seal structure for third generation wheel hub bearing units |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202834075U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114060542A (en) * | 2021-12-10 | 2022-02-18 | 上海美科阀门有限公司 | Valve body with composite valve seat structure and butterfly valve having the same |
-
2012
- 2012-08-13 CN CN2012204004281U patent/CN202834075U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114060542A (en) * | 2021-12-10 | 2022-02-18 | 上海美科阀门有限公司 | Valve body with composite valve seat structure and butterfly valve having the same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20200813 |