CN210859571U - Sealing element of hub bearing unit - Google Patents
Sealing element of hub bearing unit Download PDFInfo
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- CN210859571U CN210859571U CN201921177473.3U CN201921177473U CN210859571U CN 210859571 U CN210859571 U CN 210859571U CN 201921177473 U CN201921177473 U CN 201921177473U CN 210859571 U CN210859571 U CN 210859571U
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- hub bearing
- skeleton
- flange
- bearing unit
- sealing
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Abstract
A wheel hub bearing unit sealing member, including skeleton one and skeleton two, be provided with the rubber seal on skeleton one, be provided with the lip on the rubber seal, the lip forms the water storage space with the cooperation of skeleton two, this water storage space communicates with each other through labyrinth seal passageway and external world. The water storage space is mainly used for accumulating outside water or impurities, so that the outside water or impurities are prevented from directly entering the hub bearing, and the water storage space has a buffering function. The water storage space is communicated with the outside through the labyrinth seal channel, outside water or impurities are not easy to enter the water storage space, and the water or impurities in the water storage space are discharged along the labyrinth seal channel under the action of centrifugal force during the rotation process of the hub bearing. The water storage tank is mainly used for storing water or impurities and preventing the water or the impurities from entering the labyrinth seal channel so as to optimize the sealing performance of the sealing element.
Description
Technical Field
The utility model relates to a seal structure especially relates to a wheel hub bearing unit sealing member, belongs to automotive filed.
Background
The hub bearing unit is one of the main fittings of the automobile, and the hub bearing unit should be reasonably sealed to prevent water or impurities from entering the interior of the hub bearing unit to cause damage to the hub bearing.
In the prior art, the sealing of the hub bearing unit adopts a sealing element to realize the dynamic sealing of the hub bearing unit by means of the friction of a lip. The sealing element is simple in structure and has the technical problem of poor sealing effect in the actual use process.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a wheel hub bearing unit sealing member is provided to improve the sealing performance of wheel hub bearing.
The utility model provides a technical scheme that above-mentioned technical problem adopted is:
the utility model provides a wheel hub bearing unit sealing member for wheel hub bearing unit's the outside, includes wheel hub bearing outer lane and flange, wheel hub bearing outer lane with be provided with seal structure between the flange, seal structure includes first portion and second portion, the first portion includes skeleton one be provided with the rubber seal on the skeleton one, the second portion include with flange complex skeleton two, be provided with the lip on the rubber seal, the lip with skeleton two contact and cooperation skeleton two form the water storage space, the water storage space communicates with each other with the external world through labyrinth seal passageway be provided with the aqua storage tank on the flange, skeleton two are located the aqua storage tank with between the labyrinth seal passageway.
A wheel hub bearing unit sealing member, including skeleton one and skeleton two, be provided with the rubber seal on skeleton one, be provided with the lip on the rubber seal, the lip forms the water storage space with the cooperation of skeleton two, this water storage space communicates with each other through labyrinth seal passageway and external world. The water storage space is mainly used for accumulating outside water or impurities, so that the outside water or impurities are prevented from directly entering the hub bearing, and the water storage space has a buffering function. The water storage space is communicated with the outside through the labyrinth seal channel, outside water or impurities are not easy to enter the water storage space, and the water or impurities in the water storage space are discharged along the labyrinth seal channel under the action of centrifugal force during the rotation process of the hub bearing. The water storage tank is mainly used for storing water or impurities and preventing the water or the impurities from entering the labyrinth seal channel so as to optimize the sealing performance of the sealing element.
Preferably, the rubber sealing body is provided with a convex part extending towards the second framework, the second framework is provided with a bent part extending towards the direction of the rubber sealing body, and the convex part and the bent part are matched to form a labyrinth sealing channel.
The rubber sealing body and the framework II have simple structures and are easy to manufacture, and the manufacturing cost of the sealing element is reduced.
Preferably, the first framework comprises a matching portion matched with the outer ring of the hub bearing, an extending portion matched with the matching portion is arranged on the rubber sealing body, a convex ring is arranged on the extending portion and is extended along the diameter direction of the outer ring of the hub bearing, and the convex ring is extended towards the direction far away from the outer ring of the hub bearing.
The arrangement of the convex ring can prevent water or impurities from entering the labyrinth seal channel along the extension part, and the sealing performance of the seal is optimized.
Preferably, a concave portion is arranged on the hub bearing outer ring, a sealing ring matched with the concave portion is arranged on the extending portion, and the sealing ring is located between the hub bearing outer ring and the extending portion.
The arrangement of the concave part and the sealing ring further optimizes the sealing performance of the sealing element, and water or impurities are prevented from entering the hub bearing along the outer ring of the hub bearing.
Preferably, the second framework further comprises an assembly part matched with the flange, the assembly part is in interference fit with the flange, the second framework further comprises a fitting part fitted with the flange along the diameter direction of the flange, the assembly part is in buffer space formed by the flange fitted between the fitting parts, and a rubber sealing part is arranged in the buffer space.
The assembly part is in interference fit with the flange, and water or impurities can be effectively prevented from entering the hub bearing. The setting of buffering space can play the buffer function, avoids water or impurity to get into in the wheel hub bearing.
Preferably, the rubber sealing body divides the buffer space into at least two independent spaces.
The sealing performance of the sealing element is optimized.
Preferably, the rubber sealing body further comprises a sealing lip which is in contact with the second framework and forms at least two sealing spaces, and the sealing lip and the rubber sealing body are of an integrated structure.
The arrangement of the sealing lip optimizes the sealing performance of the sealing element.
Preferably, the first framework is in interference fit with the outer ring of the hub bearing.
Preferably, the lip and the rubber sealing body are of an integrated structure, the extension and the rubber sealing body are of an integrated structure, and the sealing ring and the extension are of an integrated structure.
Preferably, the rubber sealing body is provided with an opening which is beneficial to assembly of the rubber sealing body and the framework.
Compared with the prior art, the utility model have following advantage and effect:
1. the arrangement of the water storage space is used for storing water or impurities at a position far away from the hub bearing, and the sealing performance of the sealing element is optimized.
2. The labyrinth seal channel makes water or impurity be difficult to get into the water storage space, has optimized the sealing performance of sealing member.
3. The water storage tank is mainly used for storing water or impurities at a position far away from the hub bearing, and the sealing performance of the sealing element is optimized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of the present invention.
Description of reference numerals:
1. the wheel hub bearing comprises a wheel hub bearing outer ring, 2, a flange, 3, a first part, 4, a second part, 5, a framework I, 6, a rubber sealing body, 7, a framework II, 8, a lip, 9, a water storage space, 10, a labyrinth sealing channel, 11, a water storage tank, 12, a convex part, 13, a bent part, 14, a matching part, 15, an extending part, 16, a sealing ring, 17, an assembling part, 18, a buffering space, 19, a rubber sealing part, 20 and a sealing lip.
Detailed Description
The present invention will be described in further detail with reference to the following examples, which are illustrative of the present invention and are not intended to limit the present invention.
The numbering of features in this embodiment is only used to distinguish corresponding features, and is not a limitation on the number of features. For example, the first frame 5 and the second frame 7 are only used for illustrating that there are two frames, and the number of frames is not limited. Those skilled in the art can understand the specific meaning of the related terms by combining the specification and the drawings.
Example 1
Referring to fig. 1, a hub bearing unit sealing member is used at the outer side of a hub bearing unit, the outer side of the hub bearing unit refers to the side of a hub bearing, which is far away from a vehicle body, and includes a hub bearing outer ring 1 and a flange 2, a sealing structure is arranged between the hub bearing outer ring 1 and the flange 2, the sealing structure includes a first portion 3 and a second portion 4, the first portion 3 includes a first framework 5, a rubber sealing body 6 is arranged on the first framework 5, the second portion 4 includes a second framework 7 matched with the flange 2, and the assembling modes of the first framework 5, the hub bearing outer ring 1, the second framework 7 and the flange 2 refer to the prior art, and will not be described herein.
As shown in fig. 1, a lip 8 is arranged on the rubber sealing body 6, the lip 8 contacts with the second framework 7 and cooperates with the second framework 7 to form a water storage space 9, the water storage space 9 is communicated with the outside through a labyrinth sealing channel 10, a water storage tank 11 is arranged on the flange 2, and the second framework 7 is positioned between the water storage tank 11 and the labyrinth sealing channel 10.
The working principle of the scheme is as follows: the water storage space 9 is communicated with the outside through a labyrinth seal passage 10. The water storage space 9 plays a buffering function, and water or impurities entering from the outside are stored in the water storage space 9, so that the water or impurities are prevented from entering the hub bearing, and the waterproof performance of the sealing element is optimized.
The labyrinth seal passage 10 can effectively prevent water or impurities from entering the water storage space 9, and the sealing performance of the seal is optimized.
The water storage tank 11 is mainly used for preventing water or impurities from entering the hub bearing through a gap between the second framework 7 and the flange 2, and sealing performance of a sealing element is optimized.
Example 2
This embodiment describes the manner of forming the labyrinth seal passage 10 in conjunction with embodiment 1.
As shown in fig. 1, the rubber packing 6 is provided with a convex portion 12 extending toward the second frame 7, the second frame 7 is provided with a bent portion 13 extending toward the rubber packing 6, and the convex portion 12 and the bent portion 13 cooperate to form a labyrinth passage 10.
The labyrinth seal passage 10 is longer as the number of the convex portions 12 and the bent portions 13 is larger, so that the sealing performance of the seal is better, the number of the convex portions 12 and the bent portions 13 is not particularly limited, and the labyrinth seal passage can be reasonably set by a person skilled in the art as required.
The convex portion 12 and the rubber sealing body 6 may be formed integrally, and the bent portion 13 and the second frame 7 may be formed integrally.
Example 3
In this embodiment, the specific structures of the first frame 5 and the rubber sealing body 6 are described in conjunction with embodiment 1 or embodiment 2.
As shown in fig. 1, the first skeleton 5 includes an engaging portion 14 engaged with the hub bearing outer ring 1, an extending portion 15 engaged with the engaging portion 14 is provided on the rubber sealing body 6, a protruding ring is provided on the extending portion 15, the protruding ring protrudes from the extending portion 15 along a diameter direction of the hub bearing outer ring 1, and the protruding ring protrudes from the extending portion 15 toward a direction away from the hub bearing outer ring 1.
As shown in figure 1, the arrangement of the extension part 15 mainly enables the first framework 5 to be tightly matched with the hub bearing outer ring 1, so that water or impurities are prevented from entering the hub bearing along the hub bearing outer ring 1, and the sealing performance of the sealing element is optimized.
The arrangement of the convex ring plays a role of water blocking, and water or impurities can be prevented from entering the labyrinth seal passage 10.
The more the quantity of bulge loops, the better the water retaining performance, the number of bulge loops is not specifically limited, and the bulge loops can be reasonably arranged according to the needs by the technical personnel in the field.
A concave part is arranged on the hub bearing outer ring 1, a sealing ring 16 matched with the concave part is arranged on the extending part 15, and the sealing ring 16 is positioned between the hub bearing outer ring 1 and the extending part 15.
The sealing ring 16 is provided mainly for waterproof performance. Prevent water or impurity along wheel hub bearing outer lane 1 entering wheel hub bearing, optimized the sealing performance of sealing member.
The lip portion 8 and the rubber sealing body 6 are of an integrated structure, the extending portion 15 and the rubber sealing body 6 are of an integrated structure, and the sealing ring 16 and the extending portion 15 are of an integrated structure.
Example 4
The present embodiment may be combined with any of the above embodiments, and is an optimization scheme of the above technical solution.
As shown in fig. 1, the second framework 7 further comprises an assembling portion 17 matched with the flange 2, the assembling portion 17 is in interference fit with the flange 2, the second framework 7 further comprises a fitting portion fitted with the flange 2 along the diameter direction of the flange 2, a buffer space 18 is formed between the assembling portion 17 and the fitting portion by matching the flange 2, and a rubber sealing portion 19 is arranged in the buffer space 18.
As shown in fig. 1, the attaching portion contacts or communicates with the water storage tank 11, and the attaching portion and the flange 2 should be closely attached to prevent water or impurities from entering the buffering space 18. When the attaching part is not tightly attached to the flange 2, water or impurities enter the buffering space 18, the buffering space 18 has a certain buffering function, the water or the impurities are prevented from entering the hub bearing, and the sealing performance of the sealing element is optimized.
In an optimization of the present embodiment, the rubber sealing body 6 divides the buffer space 18 into at least two separate spaces.
The greater the number of independent spaces, the better the sealing performance, and the number of independent spaces is not particularly limited and can be freely selected by those skilled in the art.
Example 5
The present embodiment describes the structure of the rubber sealing body 6 in conjunction with any of the above embodiments.
As shown in fig. 1, the rubber sealing body 6 further includes a sealing lip 20 contacting with the second frame 7 and forming at least two sealing spaces, and the sealing lip 20 and the rubber sealing body 6 are of an integral structure.
One of the sealing lips 20 may coincide with the lip portion 8, that is, one of the sealing lips 20 and the lip portion 8 are the same structure, and the specific structures of the lip portion 8 and the sealing lip 20 are not limited, and can be reasonably selected by those skilled in the art according to the needs.
Example 6
The present embodiment, in combination with any one of the above embodiments, further defines the above structure.
The first framework 5 is in interference fit with the hub bearing outer ring 1.
The rubber sealing body 6 is provided with an opening which is beneficial to assembling the rubber sealing body 6 and the first framework 5.
The first framework 5 and the second framework 7 can be made of metal materials.
In addition, it should be noted that the specific embodiments described in the present specification may differ in the shape of the components, the names of the components, and the like. All equivalent or simple changes made according to the structure, characteristics and principle of the utility model are included in the protection scope of the utility model. Various modifications, additions and substitutions may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.
Claims (10)
1. The utility model provides a wheel hub bearing unit sealing member for the outside of wheel hub bearing unit, includes wheel hub bearing outer lane (1) and flange (2), wheel hub bearing outer lane (1) with be provided with seal structure between flange (2), seal structure includes first part (3) and second part (4), characterized by: first part (3) include skeleton (5) be provided with rubber seal (6) on skeleton (5), second part (4) include with flange (2) complex skeleton two (7), be provided with lip (8) on the rubber seal (6), lip (8) with skeleton two (7) contact and cooperation skeleton two (7) form water storage space (9), water storage space (9) communicate with each other with the external world through labyrinth seal passageway (10) be provided with aqua storage tank (11) on flange (2), skeleton two (7) are located aqua storage tank (11) with between labyrinth seal passageway (10).
2. A hub bearing unit seal according to claim 1, wherein: the rubber sealing body (6) is provided with a convex part (12) extending towards the second framework (7), the second framework (7) is provided with a bent part (13) extending towards the rubber sealing body (6), and the convex part (12) and the bent part (13) are matched to form a labyrinth sealing channel (10).
3. A hub bearing unit seal according to claim 1, wherein: the first framework (5) comprises a matching portion (14) matched with the outer ring (1) of the hub bearing, an extending portion (15) matched with the matching portion (14) is arranged on the rubber sealing body (6), a convex ring is arranged on the extending portion (15), the convex ring is arranged along the diameter direction of the outer ring (1) of the hub bearing in a protruding mode, the extending portion (15) is arranged, and the convex ring protrudes towards the direction away from the outer ring (1) of the hub bearing in a protruding mode, and the extending portion (15) is arranged on the outer ring of the hub bearing in a protruding mode.
4. A hub bearing unit seal according to claim 3, wherein: the hub bearing outer ring (1) is provided with a concave part, the extending part (15) is provided with a sealing ring (16) matched with the concave part, and the sealing ring (16) is located between the hub bearing outer ring (1) and the extending part (15).
5. A hub bearing unit seal according to claim 1, wherein: skeleton two (7) still include with flange (2) complex assembly portion (17), assembly portion (17) with flange (2) interference fit, skeleton two (7) still include along flange (2) diameter direction with the laminating portion of flange (2) laminating assembly portion (17) with cooperation flange (2) form buffer space (18) between the laminating portion, be provided with rubber seal portion (19) in buffer space (18).
6. A hub bearing unit seal according to claim 5, wherein: the rubber sealing body (6) divides the buffer space (18) into at least two independent spaces.
7. A hub bearing unit seal according to claim 1, wherein: the rubber sealing body (6) further comprises a sealing lip (20) which is in contact with the second framework (7) and forms at least two sealing spaces, and the sealing lip (20) and the rubber sealing body (6) are of an integrated structure.
8. A hub bearing unit seal according to claim 1, wherein: the first framework (5) is in interference fit with the outer ring (1) of the hub bearing.
9. The seal of a hub bearing unit of claim 4, wherein: the lip portion (8) and the rubber sealing body (6) are of an integrated structure, the extending portion (15) and the rubber sealing body (6) are of an integrated structure, and the sealing ring (16) and the extending portion (15) are of an integrated structure.
10. A hub bearing unit seal according to claim 1, wherein: the rubber sealing body (6) is provided with an opening which is beneficial to the assembly of the rubber sealing body (6) and the first framework (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921177473.3U CN210859571U (en) | 2019-07-25 | 2019-07-25 | Sealing element of hub bearing unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921177473.3U CN210859571U (en) | 2019-07-25 | 2019-07-25 | Sealing element of hub bearing unit |
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| Publication Number | Publication Date |
|---|---|
| CN210859571U true CN210859571U (en) | 2020-06-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921177473.3U Active CN210859571U (en) | 2019-07-25 | 2019-07-25 | Sealing element of hub bearing unit |
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| CN (1) | CN210859571U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110513397A (en) * | 2019-07-25 | 2019-11-29 | 浙江万向精工有限公司 | Hub-bearing unit sealing element |
| CN112196903A (en) * | 2020-09-01 | 2021-01-08 | 浙江万向精工有限公司 | Box-type hub bearing unit outer sealing structure |
-
2019
- 2019-07-25 CN CN201921177473.3U patent/CN210859571U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110513397A (en) * | 2019-07-25 | 2019-11-29 | 浙江万向精工有限公司 | Hub-bearing unit sealing element |
| CN112196903A (en) * | 2020-09-01 | 2021-01-08 | 浙江万向精工有限公司 | Box-type hub bearing unit outer sealing structure |
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