CN205136385U - Can prevent wheel hub bearing sealing device of muddy water - Google Patents
Can prevent wheel hub bearing sealing device of muddy water Download PDFInfo
- Publication number
- CN205136385U CN205136385U CN201520954115.4U CN201520954115U CN205136385U CN 205136385 U CN205136385 U CN 205136385U CN 201520954115 U CN201520954115 U CN 201520954115U CN 205136385 U CN205136385 U CN 205136385U
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- muddy water
- ring
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- wheel hub
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Abstract
The utility model relates to a mechanical seal structure specifically is a wheel hub bearing sealing device. Technical scheme does: an one end position that can prevent wheel hub bearing sealing device of muddy water including outer lane and inner circle, corresponds between outer lane and the inner circle and is equipped with the sealing washer in outside port position department, be equipped with bellied muddy water the outer lane outside on the periphery and keep off the ring, muddy water keep off the ring locates the inner circle correspond outside the port. Muddy water keeps off the annular and becomes in outside port department, and formation stops and shunts the guide to muddy water, avoids muddy water direct in outside port is gone into to the outer lane wall flow, to the effective protection of sealing washer formation, reduces muddy water and gets into the probability, puies forward the high leakproofness ability, extends sealing washer life.
Description
Technical field
The utility model relates to a kind of mechanical seal structure, is specifically the sealing configuration on hub bearing.
Background technique
Hub bearing is arranged on the wheel shaft of truck, and mainly playing a part load-bearing and accurately guide for the rotation of wheel hub provides, is very important component on axletree.Bearing seal was lost efficacy and was directly caused bearing failure, and bearing failure can cause vehicle normally to run usually, and therefore the sealing of bearing plays vital effect to whole bearing.
As shown in Figure 1, seal arrangement on existing hub bearing mainly includes outer ring, inner ring and seal ring, inner ring is provided with seal ring between the side being provided with the flange supporting wheel and outer ring, is also " outside ", realizes hub bearing and reach sealing in side ports place outside.The hub bearing of existing structure, muddy water flows in the port of outside (in Fig. 1, arrow logo track is muddy water flow trace) along outer ring, and assemble at seal ring place, thus cause bearing seal easily to be lost efficacy, working life is short.
Summary of the invention
The present utility model object: for overcoming the defect that prior art exists; the utility model provides a kind of wheel hub bearing seal device with muddy water guide structure; the stop realizing muddy water guides shunting; improve anti-muddy water performance; to seal ring formation protection, improve sealing effect and seal working life with extending.
For achieving the above object, the utility model provides following technological scheme: a kind of can the wheel hub bearing seal device of anti-muddy water, include outer ring and inner ring, between outer ring and inner ring, correspondence is provided with seal ring in side ports position outside, it is characterized in that: described outer ring outer peripheral surface is provided with protruding muddy water baffle ring, and muddy water baffle ring is located at an end position of port outside inner ring correspondence.
By adopting technique scheme, outside muddy water baffle ring is formed in, port forms stop to muddy water and shunts and guides, and avoids muddy water directly in the port of collar wall inflow outside; available protecting is formed to seal ring; reduce muddy water and enter probability, improve sealability, extend seal ring working life.
Preferably, the outer peripheral surface of described outer ring near port one end, outside is provided with annular groove, annular groove is positioned at muddy water baffle ring axially away from port one end, outside, the axial end face away from muddy water baffle ring of annular groove is slope, and muddy water baffle ring axially extends close towards the slope of annular groove.Under this structural design, annular groove plays the drainage leading role to muddy water further, and slope designs, and improves drainage effect, improves muddy water baffle ring to the blocking effect of muddy water, improves sealability.
Preferably, described muddy water baffle ring is towards the U-shaped of axially open, and muddy water baffle ring is sleeved on the axial end portion of outer ring.Under this structural design, muddy water baffle ring is easy for installation, and muddy water baffle ring coordinates face length with outer ring, and in labyrinth shape, has good sealability.
Preferably, described muddy water baffle ring comprises the rigid backbone of rubber body and U-shaped, rubber body is attached in rigid backbone, and described rubber body comprises the rubber cement water resistance stopper being positioned at inner ring outer circumferential sides, and described rubber cement water resistance stopper is positioned on the U-shaped cavity wall of rigid backbone at least partly.Under this structural design, muddy water baffle ring adopts rubber and rigid backbone composition, install more solid and reliable, rubber cement water resistance stopper has at least part to be positioned on the U-shaped cavity wall of rigid backbone, namely between rigid backbone and inner ring outer peripheral surface, there is rubber, muddy water baffle ring is not only made to install reliable, good to the blocking effect of muddy water, sealability.
Preferably, the plate body of described rigid backbone corresponding outer ring outer peripheral surface is coated in rubber cement water resistance stopper, and rubber body covers the outer side wall of rigid backbone.Such rubber body forms protection to rigid backbone.
Preferably, described seal ring includes seal ring skeleton and rubbery sealed body, rubbery sealed body is attached on seal ring skeleton, rubbery sealed body includes rubber matrix and sealing lip, the rigid backbone of described seal ring skeleton and muddy water baffle ring is one-body molded, and the rubber body of rubber matrix and muddy water baffle ring is integrally connected.Under this structural design, muddy water baffle ring and seal ring one, good sealing effect, and install more convenient and firm.
Preferably, described seal ring skeleton comprises axially extended cylindrical portion, and the radial axial connecting ring extended, and the axial lateral plate that cylindrical portion and rigid backbone are positioned at outside port is integrally connected through the portion of curving.Under this structural design, under the cylindrical portion design of seal ring skeleton, the axial lateral plate that cylindrical portion and rigid backbone are positioned at outside port is integrally connected through the portion of curving, namely cylindrical portion, rigid backbone are positioned at the axial lateral plate of outside port and the portion of curving is formed as U-shape, the installation of seal ring and muddy water baffle ring is more solid and reliable, is processed to form and also facilitates.
Preferably, described sealing lip includes outer seal lip, intermediate seal lip and interior sealing lip, outer seal lip and intermediate seal lip axially also radially extend towards Bearing outer, interior sealing lip axially also radially extends towards Bearing inner, outside outer seal lip and intermediate seal lip and inner ring are in, the axial walls of port contacts and is sealed and matched, and outside interior sealing lip and inner ring are in, the radial wall of port contacts and is sealed and matched.Under this structural design, three sealing lip sealings, three sealing lips are inclined design, and outer seal lip and intermediate seal lip realize dust-proof, muddy water, introduced contaminants is avoided to enter Bearing inner, adopt inclination to be pressed in axial walls, sealing is reliable, and interior sealing lip is grease seal lip, grease is avoided to leak, it axially tilts towards Bearing inner, can be formed well stop grease, prevents leakage of oil from leaking fat; Sealing circle has sealing effect.
Below in conjunction with accompanying drawing, the utility model is further described.
Accompanying drawing explanation
Fig. 1 is existing wheel hub bearing seal device structural representation;
Fig. 2 is that the utility model specific embodiment can the wheel hub bearing seal device structural representation of anti-muddy water.
Embodiment
See accompanying drawing 2, a kind of disclosed in the utility model can the wheel hub bearing seal device of anti-muddy water, include outer ring 1 and inner ring 2, between outer ring 1 and inner ring 2, correspondence is provided with seal ring 4 in side ports 3 position outside, described inner ring 2 outer peripheral surface is provided with protruding muddy water baffle ring 5, and muddy water baffle ring 5 is located at an end position of inner ring 2 corresponding outside port 3.Muddy water baffle ring is formed in port, outside and is formed muddy water and to stop and shunting guides, and avoids muddy water directly to flow in the port of outside along collar wall, forms available protecting to seal ring, reduce muddy water and enter probability, improve sealability, extend seal ring working life.For improving muddy water shunting effect, the outer peripheral surface of described outer ring 1 near outside port 3 one end is provided with annular groove 11, annular groove 11 is positioned at muddy water baffle ring 5 axially away from outside port 3 one end, the axial end face away from muddy water baffle ring 5 of annular groove 11 is slope 111, and muddy water baffle ring 5 axially extends close towards the slope 111 of annular groove 11; Annular groove plays the drainage leading role to muddy water further, improves muddy water baffle ring to the blocking effect of muddy water, improves sealability.
In this specific embodiment, described muddy water baffle ring 5 is towards the U-shaped of axially open, and muddy water baffle ring 5 is sleeved on the axial end portion of outer ring 1.Under this structural design, muddy water baffle ring is easy for installation, and muddy water baffle ring coordinates face length with outer ring, and in labyrinth shape, has good sealability.And, described muddy water baffle ring 5 comprises the rigid backbone 52 of rubber body 51 and U-shaped, rubber body 51 is attached in rigid backbone 52, described rubber body 51 comprises the rubber cement water resistance stopper 511 being positioned at inner ring outer circumferential sides, and described rubber cement water resistance stopper 511 is positioned on the U-shaped cavity wall of rigid backbone 52 at least partly.Muddy water baffle ring adopts rubber and rigid backbone composition, install more solid and reliable, rubber cement water resistance stopper has at least part to be positioned on the U-shaped cavity wall of rigid backbone, namely between rigid backbone and inner ring outer peripheral surface, there is rubber, muddy water baffle ring is not only made to install reliable, rubber and outer ring gluing, sealing are closely, good to the blocking effect of muddy water, sealability.The plate body of described rigid backbone 52 corresponding outer ring 1 outer peripheral surface is coated in rubber cement water resistance stopper 511, and rubber body 51 covers the outer side wall of rigid backbone 52.Such rubber body forms protection to rigid backbone.
In this specific embodiment, described seal ring 4 includes seal ring skeleton 41 and rubbery sealed body 42, rubbery sealed body 42 is attached on seal ring skeleton 41, rubbery sealed body 42 includes rubber matrix and sealing lip, described seal ring skeleton 41 is one-body molded with the rigid backbone 52 of muddy water baffle ring 5, and the rubber body 51 of rubber matrix and muddy water baffle ring 5 is integrally connected.Muddy water baffle ring and seal ring one, overall structure good stability, good sealing effect, and install more convenient and firm.
And described seal ring skeleton 41 comprises axially extended cylindrical portion 411, and the radial axial connecting ring 412 extended, the axial lateral plate that cylindrical portion 411 and rigid backbone 52 are positioned at outside port is integrally connected through curving portion 413.Namely under the cylindrical portion of seal ring skeleton designs, the axial lateral plate that cylindrical portion and rigid backbone are positioned at outside port is integrally connected through the portion of curving, cylindrical portion, rigid backbone are positioned at the outside axial lateral plate of port and the portion of curving is formed as U-shape, extending sleeve is contained in the degree of depth of end, outer ring, the installation of seal ring and muddy water baffle ring is more solid and reliable, sealing is reliable, and under this structure, rigid backbone and being integrally processed to form of seal ring skeleton also facilitate simultaneously.
Wherein, described sealing lip includes outer seal lip 421, intermediate seal lip 422 and interior sealing lip 423, outer seal lip 421 and intermediate seal lip 422 axially also radially extend towards Bearing outer, interior sealing lip 423 axially also radially extends towards Bearing inner, outside outer seal lip 421 and intermediate seal lip 422 and inner ring 2 are in, the axial walls 21 at port 3 place contacts and is sealed and matched, and outside interior sealing lip 423 and inner ring 2 are in, the radial wall 22 at port 3 place contacts and is sealed and matched.Three sealing lip sealings, three sealing lips are inclined design, outer seal lip and intermediate seal lip realize dust-proof, muddy water, avoid introduced contaminants to enter Bearing inner, adopt inclination to be pressed in axial walls, sealing is reliable, interior sealing lip is grease seal lip, avoids grease to leak, and it axially tilts towards Bearing inner, can be formed grease and well stop, prevent leakage of oil from leaking fat; Sealing circle has sealing effect.
Be muddy water path as being with arrow trajectory line in Fig. 2, muddy water flows in annular groove along the slope of annular groove, and stopped by muddy water baffle ring, muddy water flows out along annular groove, fine drainage and derivation are formed to muddy water, avoid muddy water assemble and enter seal ring part, extend seal ring and bearing working life.
Claims (8)
1. one kind can the wheel hub bearing seal device of anti-muddy water, include outer ring and inner ring, between outer ring and inner ring, correspondence is provided with seal ring in side ports position outside, it is characterized in that: described outer ring outer peripheral surface is provided with protruding muddy water baffle ring, and muddy water baffle ring is located at an end position of port outside inner ring correspondence.
2. according to claim 1 can the wheel hub bearing seal device of anti-muddy water, it is characterized in that: the outer peripheral surface of described outer ring near port one end, outside is provided with annular groove, annular groove is positioned at muddy water baffle ring axially away from port one end, outside, the axial end face away from muddy water baffle ring of annular groove is slope, and muddy water baffle ring axially extends close towards the slope of annular groove.
3. can the wheel hub bearing seal device of anti-muddy water according to claim 1 or 2, it is characterized in that: described muddy water baffle ring is towards the U-shaped of axially open, and muddy water baffle ring is sleeved on the axial end portion of outer ring.
4. according to claim 3 can the wheel hub bearing seal device of anti-muddy water, it is characterized in that: described muddy water baffle ring comprises the rigid backbone of rubber body and U-shaped, rubber body is attached in rigid backbone, described rubber body comprises the rubber cement water resistance stopper being positioned at inner ring outer circumferential sides, and described rubber cement water resistance stopper is positioned on the U-shaped cavity wall of rigid backbone at least partly.
5. according to claim 4 can the wheel hub bearing seal device of anti-muddy water, it is characterized in that: the plate body of described rigid backbone corresponding outer ring outer peripheral surface is coated in rubber cement water resistance stopper, and rubber body covers the outer side wall of rigid backbone.
6. according to claim 3 can the wheel hub bearing seal device of anti-muddy water, it is characterized in that: described seal ring includes seal ring skeleton and rubbery sealed body, rubbery sealed body is attached on seal ring skeleton, rubbery sealed body includes rubber matrix and sealing lip, the rigid backbone of described seal ring skeleton and muddy water baffle ring is one-body molded, and the rubber body of rubber matrix and muddy water baffle ring is integrally connected.
7. according to claim 6 can the wheel hub bearing seal device of anti-muddy water, it is characterized in that: described seal ring skeleton comprises axially extended cylindrical portion, and the radial axial connecting ring extended, the axial lateral plate that cylindrical portion and rigid backbone are positioned at outside port is integrally connected through the portion of curving.
8. according to claim 6 can the wheel hub bearing seal device of anti-muddy water, it is characterized in that: described sealing lip includes outer seal lip, intermediate seal lip and interior sealing lip, outer seal lip and intermediate seal lip axially also radially extend towards Bearing outer, interior sealing lip axially also radially extends towards Bearing inner, outside outer seal lip and intermediate seal lip and inner ring are in, the axial walls of port contacts and is sealed and matched, and outside interior sealing lip and inner ring are in, the radial wall of port contacts and is sealed and matched.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520954115.4U CN205136385U (en) | 2015-11-25 | 2015-11-25 | Can prevent wheel hub bearing sealing device of muddy water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520954115.4U CN205136385U (en) | 2015-11-25 | 2015-11-25 | Can prevent wheel hub bearing sealing device of muddy water |
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| CN205136385U true CN205136385U (en) | 2016-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520954115.4U Active CN205136385U (en) | 2015-11-25 | 2015-11-25 | Can prevent wheel hub bearing sealing device of muddy water |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105909796A (en) * | 2016-06-17 | 2016-08-31 | 浙江万向精工有限公司 | Outer sealing assembly with two skeletons |
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2015
- 2015-11-25 CN CN201520954115.4U patent/CN205136385U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105909796A (en) * | 2016-06-17 | 2016-08-31 | 浙江万向精工有限公司 | Outer sealing assembly with two skeletons |
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