CN111271380A - Magnetic sealing assembly for end face gear hub bearing unit - Google Patents
Magnetic sealing assembly for end face gear hub bearing unit Download PDFInfo
- Publication number
- CN111271380A CN111271380A CN202010101097.0A CN202010101097A CN111271380A CN 111271380 A CN111271380 A CN 111271380A CN 202010101097 A CN202010101097 A CN 202010101097A CN 111271380 A CN111271380 A CN 111271380A
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- CN
- China
- Prior art keywords
- lip
- ring
- cavity
- framework
- bearing
- 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
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 39
- 230000003068 static effect Effects 0.000 claims abstract description 15
- 239000000696 magnetic material Substances 0.000 claims description 8
- 230000006698 induction Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 20
- 230000005540 biological transmission Effects 0.000 abstract description 8
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000004519 grease Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000009545 invasion Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
- F16C33/7816—Details of the sealing or parts thereof, e.g. geometry, material
- F16C33/782—Details of the sealing or parts thereof, e.g. geometry, material of the sealing region
- F16C33/7823—Details of the sealing or parts thereof, e.g. geometry, material of the sealing region of sealing lips
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
- F16J15/3232—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip having two or more lips
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
Abstract
The invention discloses a magnetic sealing assembly for a hub bearing unit of an end face gear, which mainly comprises a static framework arranged on an outer ring, a rotating framework arranged on an inner ring and an inner side sealing ring. The invention has the beneficial effects that: on the basis that the conventional hub magnetic sealing component bears the bearing raceway seal, the combination of an inner side sealing ring is added. The addition of the inner seal ring further prevents the failure caused by the intrusion of muddy water from the fitting of the inner ring and the seal assembly, as compared with the conventional hub bearing. Meanwhile, due to the addition of the inner sealing ring, the problem of transmission failure caused by muddy water intrusion at the matching position of the gear surface of the ball cage and the gear surface of the bearing is solved, the spline of the matching end surface is protected in a sealing manner, and the transmission efficiency of the end surface spline is ensured.
Description
Technical Field
The invention relates to the field of hub bearings, in particular to a magnetic sealing assembly for a face gear hub bearing unit.
Background
For the end face gear hub bearing, if the matching position of the end face tooth surface and the driving shaft ball cage head tooth surface is not protected in a sealing way, the end face tooth surface and the driving shaft ball cage head tooth surface are easily corroded by muddy water in an actual road condition, so that the corrosion and the failure of the matching position are caused, and the transmission of an end face spline is influenced. Therefore, a novel seal ring assembly needs to be designed to realize effective sealing of the matched spline.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a magnetic sealing assembly for a hub bearing unit of a face gear, which can prevent the failure caused by the invasion of muddy water from the matching part of an inner ring and the sealing assembly; the problem of transmission failure caused by muddy water intrusion at the matched part of the gear surface of the ball cage and the gear surface of the bearing is solved, sealing protection is carried out on the matched end face spline, and the transmission efficiency of the end face spline is ensured.
The purpose of the invention is achieved by the following technical scheme: the magnetic sealing component for the end face gear hub bearing unit mainly comprises a static framework arranged on an outer ring, a rotating framework arranged on an inner ring and an inner side sealing ring; the rotating framework and the static framework form a sealed cavity facing the outside of the bearing between the outer ring and the inner ring, and the cavity consists of a cavity A and a cavity B; a magnetic material layer is arranged outside the rotating framework and is used for transmitting magnetic induction signals; the periphery of the static framework is coated with rubber, a rubber bulge is arranged on the outer coated rubber and used for being matched with an outer ring to further seal the static framework, a lip A, a lip B and a lip C are further arranged on the outer coated rubber, the lip A is a non-contact lip, the lip B is in interference fit with the rotating framework to divide a sealed cavity between the inner ring and the outer ring into a cavity A and a cavity B, and the lip C is arranged close to the inner side of the bearing and in interference fit with the rotating framework; the inner side sealing ring is further sealed in interference fit with the magnetic material layer, and the tail end of the inner side sealing ring is used for sealing the matching surface of the bearing end face spline and the ball cage end face spline through the interference fit of the sealing lip and the ball cage head.
The invention has the beneficial effects that: on the basis that the conventional hub magnetic sealing component bears the bearing raceway seal, the combination of an inner side sealing ring is added. The addition of the inner seal ring further prevents the failure caused by the intrusion of muddy water from the fitting of the inner ring and the seal assembly, as compared with the conventional hub bearing. Meanwhile, due to the addition of the inner sealing ring, the problem of transmission failure caused by muddy water intrusion at the matching position of the gear surface of the ball cage and the gear surface of the bearing is solved, the spline of the matching end surface is protected in a sealing manner, and the transmission efficiency of the end surface spline is ensured.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Description of reference numerals: the sealing structure comprises a static framework 1, a rotating framework 2, a lip A3, a lip B4, a lip C5, a magnetic material layer 6, a cavity A7, a cavity B8, an inner side sealing ring 9, a rubber bulge 10, a sealing lip 11, an outer ring 12, an inner ring 13, a flange 14 and a ball cage head 15.
Detailed Description
The invention will be described in detail below with reference to the following drawings:
example (b): as shown in the attached drawings, the magnetic sealing assembly for the face gear hub bearing unit mainly comprises a static framework 1 arranged on an outer ring 12, a rotating framework 2 arranged on an inner ring 13 and an inner side sealing ring 9; the rotating framework 2 and the static framework 1 form a sealed cavity facing the outside of the bearing between the outer ring 12 and the inner ring 13, and the cavity consists of a cavity A7 and a cavity B8; a magnetic material layer 6 is arranged outside the rotating framework 2 and used for transmitting magnetic induction signals; the periphery of the static framework 1 is coated with rubber, a rubber bulge 10 is arranged on the coated rubber and used for being matched with an outer ring 12 to further seal the static framework 1, a lip A3, a lip B4 and a lip C5 are further arranged on the coated rubber, the lip A3 is a non-contact lip, the lip B4 is in interference fit with the rotating framework 2 to divide a sealed cavity between the inner ring 13 and the outer ring 12 into a cavity A7 and a cavity B8, and the lip C5 is arranged close to the inner side of the bearing and in interference fit with the rotating framework 2; the inner ring 13 is nested and mounted on a flange plate 14, and the end surface of the flange plate 14 is connected with a ball cage head 15 through a spline; the inner side sealing ring 9 is further sealed in an interference fit mode with the magnetic material layer 6, and the tail end of the inner side sealing ring 9 is used for sealing a matching surface of the bearing end face spline and the ball cage end face spline through the sealing lip 9 and the ball cage head 15 in the interference fit mode.
The working principle of the invention is as follows: the arrangement of the static framework 1 and the rotating framework 2 ensures that a sealed cavity facing to the outside environment is formed between the outer ring 12 and the inner ring 13, so that the invasion of muddy water can be prevented, the diversion is facilitated, the muddy water directly flowing into the cavity B8 is reduced, and the water in the cavity B8 can be effectively discharged through the action of centrifugal force; meanwhile, the lip A3 is a non-contact lip, a gap is formed between the lip A3 and the rotating framework 2 in a natural state, and a large amount of muddy water is prevented from directly invading the cavity B8 by applying a labyrinth effect; the cavity B8 formed by the lip B4 and the rotating framework 2 can be used as a water storage cavity to play a role in temporarily storing water when a large amount of muddy water is poured under the deep water level working condition; meanwhile, the lip B4 is in interference fit with the rotating framework 2, so that muddy water can be prevented from entering the cavity A7 to pollute grease of the lip, and further the muddy water can be prevented from further invading the bearing raceway; the lip C5 is a grease lip, so that the leakage of lubricating grease in a bearing raceway is prevented, the lubrication failure of the raceway is caused, and the grease is prevented from being mixed with grease added to the areas of the lip B4 and the lip C5 in the cavity A7; the inner sealing ring 9 is in interference fit with the magnetic material layer 6 on the outer side of the rotating framework 2, so that muddy water is prevented from invading the inner ring 13 to cause corrosion, and muddy water is prevented from invading the matching position of the inner ring 13 and the rotating framework 2 to cause matching failure; meanwhile, the seal lip 11 at the tail end of the inner side seal ring 9 is in interference fit with the ball cage head 15, the effective sealing effect is achieved on the matching position after the bearing end face spline and the ball cage end face spline are assembled, external muddy water is prevented from invading the matching position, tooth face matching failure is caused, and the end face tooth transmission effect is influenced.
It should be understood that equivalent substitutions and changes to the technical solution and the inventive concept of the present invention should be made by those skilled in the art to the protection scope of the appended claims.
Claims (1)
1. A magnetic seal assembly for a hub bearing unit, characterized by: mainly comprises a static framework (1) arranged on an outer ring (12), a rotating framework (2) arranged on an inner ring (13) and an inner side sealing ring (9); the rotating framework (2) and the static framework (1) form a sealed cavity facing the outside of the bearing between the outer ring (12) and the inner ring (13), and the cavity consists of a cavity A (7) and a cavity B (8); a magnetic material layer (6) is arranged outside the rotating framework (2) and is used for transmitting magnetic induction signals; the outer periphery of the static framework (1) is coated with rubber, a rubber bulge (10) is arranged on the outer coated rubber and used for being matched with an outer ring (12) to further seal the static framework (1), a lip A (3), a lip B (4) and a lip C (5) are further arranged on the outer coated rubber, the lip A (3) is a non-contact lip, the lip B (4) is in interference fit with the rotating framework (2) to divide a sealing cavity between the inner ring (13) and the outer ring (12) into a cavity A (7) and a cavity B (8), and the lip C (5) is arranged close to the inner side of the bearing and in interference fit with the rotating framework (2); inboard sealing ring (9) and magnetic material layer (6) interference fit further sealed, inboard sealing ring (9) end is sealed bearing end face spline and the fitting surface of ball cage end face spline through seal lip (9) and ball cage head (15) interference fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010101097.0A CN111271380A (en) | 2020-02-19 | 2020-02-19 | Magnetic sealing assembly for end face gear hub bearing unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010101097.0A CN111271380A (en) | 2020-02-19 | 2020-02-19 | Magnetic sealing assembly for end face gear hub bearing unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111271380A true CN111271380A (en) | 2020-06-12 |
Family
ID=70995347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010101097.0A Pending CN111271380A (en) | 2020-02-19 | 2020-02-19 | Magnetic sealing assembly for end face gear hub bearing unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111271380A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113653738A (en) * | 2021-07-26 | 2021-11-16 | 人本股份有限公司 | Magnetic sealed impact-resistant hub bearing |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07127650A (en) * | 1993-10-29 | 1995-05-16 | Ntn Corp | Sealing device of bearing |
| JP2010042764A (en) * | 2008-08-14 | 2010-02-25 | Ntn Corp | Bearing device for driving wheel |
| JP2013242036A (en) * | 2012-04-27 | 2013-12-05 | Nsk Ltd | Sealing device and bearing unit with seal |
| CN207935279U (en) * | 2017-09-21 | 2018-10-02 | 浙江钧铭机械有限公司 | A kind of hub bearing of outward flange disk integral grinding |
| CN209724979U (en) * | 2019-01-17 | 2019-12-03 | 上海瑞博密封件有限公司 | A kind of novel bearing sealing ring |
| CN212564081U (en) * | 2020-02-19 | 2021-02-19 | 浙江万向精工有限公司 | Magnetic sealing assembly for end face gear hub bearing unit |
-
2020
- 2020-02-19 CN CN202010101097.0A patent/CN111271380A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07127650A (en) * | 1993-10-29 | 1995-05-16 | Ntn Corp | Sealing device of bearing |
| JP2010042764A (en) * | 2008-08-14 | 2010-02-25 | Ntn Corp | Bearing device for driving wheel |
| JP2013242036A (en) * | 2012-04-27 | 2013-12-05 | Nsk Ltd | Sealing device and bearing unit with seal |
| CN207935279U (en) * | 2017-09-21 | 2018-10-02 | 浙江钧铭机械有限公司 | A kind of hub bearing of outward flange disk integral grinding |
| CN209724979U (en) * | 2019-01-17 | 2019-12-03 | 上海瑞博密封件有限公司 | A kind of novel bearing sealing ring |
| CN212564081U (en) * | 2020-02-19 | 2021-02-19 | 浙江万向精工有限公司 | Magnetic sealing assembly for end face gear hub bearing unit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113653738A (en) * | 2021-07-26 | 2021-11-16 | 人本股份有限公司 | Magnetic sealed impact-resistant hub bearing |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200612 |
|
| RJ01 | Rejection of invention patent application after publication |